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Title:
A RESTRICTING DEVICE AND A LOCKING SYSTEM INCLUDING THE RESTRICTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/138721
Kind Code:
A1
Abstract:
A restricting device for restricting movement of a locking bolt of a locking system along a main axis of the device, the restricting device comprising: a restricting member comprising a passage extending along a passage axis and formed with at least one open end, and a restricting portion disposed outside said passage, the restricting member being rotatable about a rotation axis between an unrestricting position, in which said passage axis is collinear with the main axis for receiving therein a portion of said locking bolt, and a restricting position, in which the passage axis intersects with the main axis thereby preventing said portion of said locking bolt from being received in said passage upon engagement of the locking bolt with the restricting portion; and a manipulator configured for selectively rotating said restricting member between its unrestricting position and its restricting position; wherein said restricting member further comprises two support portions coaxially disposed at opposite sides of the restricting member and defining said rotation axis, and said support portions are configured for supporting said restricting member when said restricting device is mounted within the locking system.

Inventors:
BRAZ ALIK ALEXANDER (IL)
Application Number:
PCT/IL2018/050086
Publication Date:
August 02, 2018
Filing Date:
January 24, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BRAZ ALIK ALEXANDER (IL)
International Classes:
E05B17/20; E05C1/10
Foreign References:
US20110025075A12011-02-03
Attorney, Agent or Firm:
LITVAK, Dima et al. (IL)
Download PDF:
Claims:
CLAIMS:

1. A restricting device for restricting movement of a locking bolt of a locking system along a main axis of the device, the restricting device comprising:

a restricting member comprising a passage extending along a passage axis and formed with at least one open end, and a restricting portion disposed outside said passage, the restricting member being rotatable about a rotation axis between an unrestricting position, in which said passage axis is collinear with the main axis for receiving therein a portion of said locking bolt, and a restricting position, in which the passage axis intersects with the main axis thereby preventing said portion of said locking bolt from being received in said passage upon engagement of the locking bolt with the restricting portion; and

a manipulator configured for selectively rotating said restricting member between its unrestricting position and its restricting position;

wherein said restricting member further comprises two support portions coaxially disposed at opposite sides of the restricting member and defining said rotation axis, and said support portions are configured for supporting said restricting member when said restricting device is mounted within the locking system.

2. A restricting device according to Claim 1 , wherein in said unrestricting position, said open end is aligned with said main axis, and in said restricting position, said open end is misaligned with said main axis.

3. A restricting device according to Claim 1 or 2, wherein in said unrestricting position, said locking bolt is movable along a first maximal distance, and in said restricting position, said locking bolt is movable towards said restricting member along a second maximal distance which is shorter than said first maximal distance.

4. A restricting device according to Claim 1, 2 or 3, wherein in said unrestricting position, said locking bolt is movable along a path which extends along said main axis between a first extreme position of the locking bolt and a second extreme position of the locking bolt, and in said restricted position, said locking bolt is restricted from moving between said first extreme position and said second extreme position.

5. A restricting device according to any one of the preceding claims, wherein said open end is shaped and sized so as to receive said portion of said locking bolt.

6. A restricting device according to any one of the preceding claims, further comprising a locking mechanism configured for allowing and preventing operation of said manipulator for rotating said restricting member.

7. A restricting device according to any one of the preceding claims, wherein said open end constitutes a first open end, and said restricting member further has a second open end, and said passage extends between said first open end and said second open end.

8. A restricting device according to Claim 7, wherein said first open end and said second open end are collinear.

9. A restricting device according to Claim 6 or 7, wherein said second open end is shaped and sized so as to receive said portion of said locking bolt.

10. A restricting device according to any one of the preceding claims, further comprising a housing for accommodating said restricting member and at least partially said manipulator.

11. A restricting device according to Claim 10, wherein said manipulator is pivotally mounted to said housing.

12. A restricting device according to Claim 10 or 11, wherein said housing has a side wall with a first surface facing said restricting member and a second surface facing said locking bolt.

13. A restricting device according to Claim 12, wherein said side wall comprises an opening shaped and sized so as to receive said portion of said locking bolt during its movement along said main axis.

14. A restricting device according to any one of the preceding claims, wherein said manipulator is extending from at least one of said support portions.

15. A restricting device according to Claim 14, wherein said manipulator comprises two manipulator parts extending from said support portions, respectively.

16. A locking system comprising:

a first side wall having a first opening;

a second side wall having a second opening;

a locking bolt displaceable along a path extending through said first opening and said second opening between a first extreme position in which said first side wall and said second side wall are free to be displaced with respect to each other and a second extreme position in which said first side wall and said second side wall are arrested with respect to each other; and

a restricting device for restricting movement of the locking bolt along said path, and having a main axis along which said path at least partially extends, said restricting device comprising:

a restricting member comprising a passage extending along a passage axis and formed with at least one open end, and a restricting portion disposed outside said passage, the restricting member being rotatable about a rotation axis between an unrestricting position, in which said passage axis is collinear with the main axis for receiving therein a portion of said locking bolt and said path is established, and a restricting position, in which said path is interrupted and the passage axis intersects with the main axis thereby preventing said portion of said locking bolt from being received in said passage upon engagement of the locking bolt with the restricting portion; and

a manipulator configured for selectively rotating said restricting member between its unrestricting position and its restricting position;

wherein said restricting member further comprises two support portions coaxially disposed at opposite sides of the restricting member and defining said rotation axis, and said support portions are configured for supporting said restricting member when said restricting device is mounted within the locking system.

17. A locking system according to Claim 16, wherein in said unrestricting position, said open end is aligned with said main axis, and in said restricting position, said open end is misaligned with said main axis.

18. A locking system according to Claim 16 or 17, wherein in said unrestricting position, said locking bolt is movable along a first maximal distance, and in said restricting position, said locking bolt is movable towards said restricting member along a second maximal distance which is shorter than said first maximal distance.

19. A locking system according to any one of Claims 16 to 18, wherein said open end is shaped and sized so as to receive said portion of said locking bolt.

20. A locking system according to any one of Claims 16 to 19, further comprising a locking mechanism configured for allowing and preventing operation of said manipulator for rotating said restricting member.

21. A locking system according to any one of Claims 16 to 20, wherein said open end constitutes a first open end, and said restricting member further has a second open end, and said passage extends between said first open end and said second open end.

22. A locking system according to Claim 21, wherein said first open end and said second open end are collinear.

23. A locking system according to Claim 21 or 22, wherein said second open end is shaped and sized so as to receive said portion of said locking bolt.

24. A locking system according to any one of Claims 16 to 23, further comprising a housing for accommodating said restricting member and at least partially said manipulator.

25. A locking system according to Claim 24, wherein said manipulator is pivotally mounted to said housing.

26. A locking system according to Claim 24 or 25, wherein said housing has said second side wall with a first surface facing said restricting member and a second surface facing said locking bolt.

27. A locking system according to Claim 26, wherein said second side wall is a second flange.

28. A locking system according to any one of Claims 16 to 27, wherein said first side wall is configured to constitute a flange of a door, and said second side wall is configured to constitute a portion of a frame of said door, and said locking bolt constitutes a portion of a lock for locking said door to said frame.

29. A locking system according to any one of Claims 16 to 28, wherein said unrestricting position of said restricting member is configured to allow movement of said locking bolt from its first extreme position to its second extreme position, and said restricting position of said restricting member is configured to prevent such movement.

30. A locking system according to any one of Claims 16 to 28, wherein said unrestrictmg position of said restricting member is configured to allow movement of said locking bolt from its second extreme position to its first extreme position, and said restricting position of said restricting member is configured to prevent such movement.

31. A locking system according to any one of Claims 16 to 28, wherein said unrestrictmg position of said restricting member is configured to allow movement of said locking bolt between its first extreme position and its second extreme position, and said restricting position of said restricting member is configured to prevent such movement.

32. A locking system according to any one of Claims 16 to 31, wherein said manipulator is extending from at least one of said support portions.

33. A locking system according to Claim 32, wherein said manipulator comprises two manipulator parts extending from said support portions, respectively.

Description:
A RESTRICTING DEVICE AND A LOCKING SYSTEM INCLUDING THE

RESTRICTING DEVICE

TECHNOLOGICAL FIELD

The presently disclosed subject matter relates in general to the field of locking systems, and in particular to devices for controlling operation of locking bolts of the locking systems.

BACKGROUND

Locking systems for doors, windows, gates, and other barriers are well known in the art. One such known locking system to lock a door uses a locking bolt slidably mounted on the door. To lock the door, the sliding bolt slides toward the door's frame and partially penetrates an opening in the door frame or instead an appropriately- positioned bounded area of a brace mounted on the door frame. To unlock the door, the sliding bolt slides in the opposite direction, to disengage the door frame or the brace. This locking system may also be used to lock a window in an analogous fashion. According to different needs of users, it is sometimes needed to restrict the movement of the locking bolt along its path between its unlocked position and locked position.

According to one example, GB 2195695 discloses a lockable sliding bolt that comprises: a spigot housed in a bolt housing and adapted to move relative to the housing between an extended position and a retracted position; retaining means in the form of cam having a releasable operative mode in which it serves to retain the spigot in the extended position; and a key-operated lock operatively connected to the cam to lock the cam in its operative mode.

According to another example, GB 1379613 discloses a lock that comprises a housing mountable on a surface, a socket separate from the housing, a bolt slidably mounted in the housing; an elongated projection integral with the bolt projecting transversely of the bolt and beyond the housing for manual operation of the bolt the housing being provided with holes for fixing screws which are accessible only after the bolt has been removed; and a plurality of locking members each of which is independently movable at least in one position of the bolt between a respective first position or a respective first selected position at which each locking member is operable to lock the bolt and a respective second position at which it is inoperable to lock the bolt.

GENERAL DESCRIPTION

According to one aspect of the presently disclosed subject matter there is disclosed a restricting device of a locking system for restricting movement of a locking bolt along a main axis of the device, the restricting device comprising:

a restricting member comprising a passage extending along a passage axis and formed with at least one open end, and a restricting portion disposed outside said passage, the restricting member being rotatable about a rotation axis between an unrestricting position, in which said passage axis is collinear with the main axis for receiving therein a portion of said locking bolt, and a restricting position, in which the passage axis intersects with the main axis thereby preventing said portion said locking bolt from being received in said passage upon engagement of the locking bolt with the restricting portion; and

a manipulator configured for selectively rotating said restricting member between its unrestricting position and its restricting position;

wherein said restricting member further comprises two support portions coaxially disposed at opposite sides of the restricting member and defining said rotation axis, and said support portions are configured for supporting said restricting member when said restricting device is mounted within the locking system.

According to another aspect of the presently disclosed subject matter there is disclosed a locking system comprising:

a first side wall having a first opening;

a second side wall having a second opening; a locking bolt displaceable along a path extending through said first opening and said second opening between a first extreme position in which said first side wall and said second side wall are free to be displaced with respect to each other and a second extreme position in which said first side wall and said second side wall are arrested with respect to each other; and

a restricting device for restricting movement of the locking bolt along said path, and having a main axis along which said path at least partially extends, said restricting device comprising:

a restricting member comprising a passage extending along a passage axis and formed with at least one open end, and a restricting portion disposed outside said passage, the restricting member being rotatable about a rotation axis between an unrestricting position, in which said passage axis is collinear with the main axis for receiving therein a portion of said locking bolt and said path is established, and a restricting position, in which said path is interrupted and the passage axis intersects with the main axis thereby preventing said portion of said locking bolt from being received in said passage upon engagement of the locking bolt with the restricting portion; and

a manipulator configured for selectively rotating said restricting member between its unrestricting position and its restricting position;

wherein said restricting member further comprises two support portions coaxially disposed at opposite sides of the restricting member and defining said rotation axis, and said support portions are configured for supporting said restricting member when said restricting device is mounted within the locking system.

The restricting device of the above aspects is configured to be incorporated in a locking system having a locking bolt. The restricting device can be an add-on to an existing locking system, or it can be an integral part of the locking system. The locking bolt of the locking system can be any known bolt, latch or another sliding member, which is displaceable between an unlocked position and a locked position. In the locked position, the locking bolt is configured for arresting an arresting member of the locking system (e.g., a brace, an opening, a cavity, a recess within a flange, a wall portion, etc.), so as to prevent displacement of the locking bolt with respect to the arresting member at any direction other than its main axis. The locking system can be mounted to any movable, usually solid, barrier for opening and closing an entranceway, a cupboard, a cabinet, or the like, commonly turning on hinges or sliding in grooves. The term 'door' as used hereinafter can refer to any such barrier. For example, the locking system can be mounted to any known door, window, gate, or any other barrier of an opening.

As opposed to a restricting member with only one supporting portion, the two opposing supporting portions provide the restricting member with increased strength and stability, for example, when the locking bolt applies pushing forces on the restricting portion of the restricting member at the restricting position thereof.

The locking device is configured for selectively restricting movement of the locking bolt along the main axis. According to one example, the locking device can selectively restrict displacement of the locking bolt between its first extreme position (i.e., an unlocked position) and a second extreme position (i.e., a locked position). According to another example, the locking device can selectively restrict displacement of the locking bolt from its first extreme position (i.e., an unlocked position) to its second extreme position (i.e., a locked position). According to a further example, the locking device can selectively restrict displacement of the locking bolt from its second extreme position (i.e., a locked position) to its first extreme position (i.e., an unlocked position).

Any one or more of the features, designs and configurations below can be incorporated in the locking device and/or the locking system of the above aspects of the presently disclosed subject matter, independently or in combination thereof.

In said unrestricting position, the open end can be aligned with the main axis, and in the restricting position, the open end can be misaligned with the main axis.

In the unrestricting position, said locking bolt is movable towards the restricting member along a first maximal distance, and in the restricting position, said locking bolt is movable towards the restricting member along a second maximal distance which is shorter than the first maximal distance. In the unrestricting position, the locking bolt is movable along a path which extends along the main axis between a first extreme position of the locking bolt and a second extreme position of the locking bolt, and in the restricting position, the locking bolt is restricted from moving between the first extreme position and the second extreme position.

The open end can be shaped and sized so as to receive said portion of said locking bolt.

The unrestricting position of the restricting member can be configured to allow movement of the locking bolt from its first extreme position to its second extreme position, and the restricting position of the restricting member can be configured to prevent such movement.

The unrestricting position of the restricting member can be configured to allow movement of the locking bolt from its second extreme position to its first extreme position, and the restricting position of the restricting member can be configured to prevent such movement.

The unrestricting position of the restricting member can be configured to allow movement of the locking bolt between its first extreme position to its second extreme position, and the restricting position of the restricting member can be configured to prevent such movement.

The locking device can further comprise a locking mechanism configured for allowing and preventing operation of the manipulator for rotating the restricting member.

The open end can constitute a first open end, and the restricting member can further have a second open end, and the passage extends between the first open end and the second open end.

The first open end and the second open end can be collinear.

The second open end can be shaped and sized so as to receive said portion of the locking bolt.

The restricting device can further comprise a housing for accommodating the restricting member and at least partially the manipulator. The manipulator can be pivotally mounted to the housing.

The housing can have a side wall with a first surface facing the restricting member and a second surface facing the locking bolt.

The side wall can comprise an opening shaped and sized so as to receive the portion of the locking bolt during its movement along the main axis.

The locking device can have a main axis along which the path at least partially extends, and in the unrestricting position, the passage axis is collinear with the main axis for receiving therein a portion of the locking bolt, and in the restricting position, the passage axis is angled with respect to the main axis for preventing receiving therein the portion of the locking bolt.

In the unrestricting position, the open end can be aligned with the main axis, and in the restricting position, the open end can be misaligned with the main axis.

The second side wall can be a second flange.

The first side wall can be configured to constitute a flange of a door, and the second side wall can be configured to constitute a portion of a frame of the door, and the locking bolt constitutes a portion of a lock for locking the door to the frame.

The manipulator can extend from at least one of the support portions.

The manipulator can comprise two manipulator parts extending from the support portions, respectively.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to better understand the subject matter that is disclosed herein and to exemplify how it may be carried out in practice, embodiments will now be described, by way of non-limiting example only, with reference to the accompanying drawings, in which:

Fig. 1A is a front perspective view of a locking system including a restricting device, according to a first example of the presently disclosed subject matter, in which a restricting member of the restricting device is in its unrestricting position, and a locking bolt of a door is in its unlocked position; Fig. IB is a top view of the locking system of Fig. 1A;

Fig. 2A is a front perspective view of the locking system of Fig. 1A, while the locking bolt is in its locked position;

Fig. 2B is a top view of the locking system of Fig. 2 A;

Fig. 3A is a front perspective view of the locking system of Fig. 1A, while the restricting member is in its restricting position;

Fig. 3B is a top view of the locking system of Fig. 3A;

Fig. 4A is a front perspective view of the locking system of Fig. 1A, while the restricting member is in its restricting position and the locking bolt is in its transition position between its locked position and unlocked position;

Fig. 4B is a top view of the locking system of Fig. 4A;

Fig. 5A is another front perspective view of the locking system of Fig. 3A, without the door;

Fig. 5B is another front perspective view of the locking system of Fig. 1A, without the door;

Fig. 6A is a front perspective view of a locking system including a restricting device, according to a second example of the presently disclosed subject matter, in which a restricting member of the restricting device is in its unrestricting position, and a locking bolt of a sliding bolt latch is in its unlocked position;

Fig. 6B is the locking system of Fig. 6A, while the locking bolt is in its transition position between its locked position and unlocked position;

Fig. 6C is the locking system of Fig. 6A, while the locking bolt is in its locked position;

Fig. 6D is the locking system of Fig. 6A, while the restricting member is in its restricting position and the locking bolt is in its locked position;

Fig. 7 A is a front perspective view of a locking system including a restricting device, according to a third example of the presently disclosed subject matter, in which a restricting member of the restricting device is in its restricting position, and a locking bolt of a sliding bolt latch is in its locked position; Fig. 7B is the locking system of Fig. 7A, while the restricting member is in its unrestricting position and the locking bolt is in its unlocked position; and

Fig. 7C is the locking system of Fig. 7B with a housing of the restricting device.

DETAILED DESCRIPTION OF EMBODIMENTS

The presently disclosed subject matter is a restricting device which is configured to be incorporated in a locking system having a locking bolt. The locking bolt can be any known bolt, latch or another sliding member of the locking system, which is displaceable between an unlocked position and a locked position. The restricting device is configured to restrict or allow the locking bolt to be displaced between its unlocked and locked position, according to different examples, some of which are presented in the drawings and respectively described below.

Figs. 1-5 illustrate a first example of the presently disclosed subject matter, in which the restricting device is configured to selectively restrict displacement of a locking bolt of a door from its unlocked position to its locked position, as detailed below.

Figs. 6A-6D illustrate a second example of the presently disclosed subject matter, in which the restricting device is configured to selectively restrict displacement of a locking bolt of a sliding bolt latch from its locked position, to its unlocked position, and vice versa, as detailed below.

Figs. 7A, 7B and 7C illustrate a third example of the presently disclosed subject matter, in which the restricting device is configured to selectively restrict displacement of a locking bolt of a sliding bolt latch from its locked position to its unlocked position, as detailed below.

The restricting device can be an add-on as shown in all the drawings of the presently disclosed subject matter. However, according to other examples, the restricting device can be an integral part of the locking system. Reference is first made to Figs. 1-5, which illustrates a locking system 1 including a restricting device 10, in accordance with a first example of the presently disclosed subject matter.

The locking system 1 includes a door portion 2 constituting a part of a door, and the restricting device 10, which is incorporated within a frame portion 15 of a frame to which the door is mounted. The frame portion 15 is shown in Figs. 1-4 as a transparent element of the locking system 1, for illustration purposes only, while in Figs. 5A and 5B, the frame portion 15 is non-transparent.

The door portion 2 has a first side wall 3. The first side wall 3 has a first opening 4. The door portion 2 further has a rotatable handle 5 configured for displacing a locking bolt 6 along a path extending along a main axis Y. The frame portion 15 has a second side wall 26 having a second opening 17 configured for receiving the locking bolt 6. According to other examples, the first side wall 3 can be a first flange of the door portion 2, and/or the second side wall 26 can be a second flange of the frame portion 15.

The locking bolt 6 is displaceable through the first opening 4 and the second opening 17 between an unlocked position (i.e., a first extreme position) shown in Figs. 1A, IB, 3A and 3B, and a locked position (i.e., a second extreme position) shown in Figs. 2 A and 2B. While being displaced from the unlocked position to the locked position, the locking bolt passes through a transition position, shown in Figs. 4A and 4B.

In the unlocked position, the locking bolt 6 is fully caved within the door portion 2 and does not extend from the first opening 4. In this position, the first opening 4 together with the door portion 2 are free to be displaced with respect to the second opening 17 and to the wall portion 15, when the door is opened by a user.

In the locked position, the locking bolt 6 fully extends through the first opening 4 and the second opening 17, thereby arresting the door portion 2 and the frame portion 15 with respect to each other.

The above elements of the door portion 2, including the locking bolt 6, and the first opening 4 as well as the frame portion 15, including the second opening 17, except for the restricting device 10, are well known in the art, and are commonly used in the field of doors.

The restricting device 10 of the examples of Figs. 1-5 is an add-on which is mountable into the frame portion 15 for restricting movement of the locking bolt 6 along the main axis Y, and thereby for preventing and/or allowing the locking bolt 6 to assume its locked position, as detailed below.

The restricting device comprises a restricting member 21 and a manipulator 14 to which the restricting member 21 is mounted for selectively rotating the restricting member 21 between its unrestricting position (Figs. 1A, IB, 2A and 2B) and its restricting position (Figs. 3A, 3B, 4A and 4B) about a rotation axis X. The restricting member 21 has two support portions 22a and 22b coaxially disposed at opposite sides of the restricting member and defining the rotation axis X. The support portions 22a and 22b are configured for supporting the restricting member 21 at two sides thereof when the restricting device 10 is mounted within the locking system 1. The two opposing supporting portions 22a and 22b provide the restricting member 21 with increased strength and stability, for example, when the locking bolt 6 applies pushing forces on a restricting portion of the restricting member 21 at the restricting position thereof.

The manipulator 14 has two manipulator parts 14a and 14b extending from the support portions 22a and 22b, respectively. The manipulator part 14a is provided with a locking mechanism having a key 18 configured for rotation thereof. Without the key 18, said rotation is not possible.

The restricting member 21 has a passage 23 with a passage axis Z. The passage 23 extends through the restricting member 21 between a first open end 25 and a second open end 27. The first open end 25 and the second open end 27 are collinear with respect to each other, and the passage 23 is sized and shaped so as to receive a respective portion of the locking bolt 6.

Reference is now made specifically to Figs. 1A, IB, 2A and 2B. As shown in Figs. 1A and IB, the restricting member 21 is rotated to its unrestricting position. In this position, the first opening 25 is aligned with the first opening 4 of the door portion 2 and the second opening 17 of the frame portion 15, so that the passage axis Z is aligned with the main axis Y of the locking bolt 6, and the path for movement of the locking bolt 6 is fully established.

As shown in Figs. 2A and 2B, in the unrestricting position of the restricting member 21, the locking bolt 6 is displaced to its locked position, while a portion 9 thereof has passed through the second open end 27. As can be seen in Fig. 2B, in the unrestricting position, the locking bolt 6 was moved from its unlocked position to its locked position along a first maximal distance Dl.

Reference is now made specifically to Figs. 3A and 3B. As shown in these figures, the restricting member 21 is rotated to its restricting position in order to prevent the door portion 2 from being locked with respect to the frame portion 15 by the locking bolt 6. In this position, the first opening 25 of the restricting member 21 is misaligned with the first opening 4 of the door portion 2 and the second opening 17 of the frame portion 15, so that the passage axis Z intersects with the main axis Y of the locking bolt 6 at an angle of 90 degrees, and the path for free movement of the locking bolt 6 along the main axis Y is interrupted.

As shown in Figs. 4A and 4B, in the restricting position of the restricting member 21, the locking bolt 6 can be displaced maximally to its transition position without the ability to reach its locked position, so that the door portion 2 cannot be locked to the frame portion 15. In the transition position of the locking bolt 6, a bolt end 7 of the locking bolt 6 engages a restricting portion 29 (shown in Figs. 4B and 5A) of the restricting member 21. As can be seen in Fig. 4B, in the restricting position, the locking bolt 6 was moved from its unlocked position to its transition position along a second maximal distance D2, which is shorter than the first distance Dl.

Reference is now made to Figs. 6A-6D illustrating a locking system 100 including a restricting device 110, in accordance with a second example of the presently disclosed subject matter.

The locking system 100 includes a sliding bolt latch 102 and the restricting device 110, which is mounted to a brace 106. The sliding bolt latch 102 can be mounted to a door, and the brace 106 can be mounted to a door frame surrounding the door. The sliding bolt latch 102 comprises a locking bolt 104 and a base 107 to which the locking bolt 104 is mounted. The locking bolt 104 has a handle 105 configured for being held by a user for displacement of the locking bolt 104 along a path extending along a main axis Y', and rotation of the locking bolt 104 about the main axis Y'. The base 107 has a first flange 107a and a second flange 107b through which the locking bolt 104 extends and is rotatable.

The locking bolt 104 is surrounded by a coil spring 150 that biases the locking bolt 104 along the main axis Y' toward the second flange 107b. The locking bolt 104 has a projection 108 extending transversely therefrom. Underneath the locking bolt 104, the base 107 has a U-shaped barrier 111 that limits sliding and rotating movements of the projection 108. When the projection is received within the barrier 111, only sliding movement of the locking bolt 104 towards the first flange 107a, is allowed.

The first flange 107a has a first opening 109, and the brace 106 has a brace flange 106a with a second opening 106b configured for receiving the locking bolt 104 therein.

The locking bolt 104 is displaceable through the first opening 109 and the second opening 106b between an unlocked position (i.e., a first extreme position) shown in Fig. 6A, and a locked position (i.e., a second extreme position) shown in Figs. 6C and 6D. While being displaced from the unlocked position to the locked position, the locking bolt passes through a transition position, shown in Fig. 6B.

To displace the locking bolt 104 from its unlocked position (Fig. 6A) to its locked position (Fig. 6B), the locking bolt 104 is forced against the biasing force of the spring 150 along the main axis Y' toward the brace 106 while being rotated. This brings the locking bolt 104 to its transition position, shown in Fig. 6B. Further rotation of the locking bolt 104 causes the projection 108 to be aligned with the passage of the barrier 111, and backward movement of the locking bolt 104 upon the pushing force of the spring, causes the projection to be introduced into the barrier 111 and to be constrained therein. In order to displace the locking bolt 104 from its locked position to its unlocked position, the locking bolt 104 is forced against the biasing force of the spring 150 along the main axis Y' toward the brace 106, so that the projection 108 escapes the barrier 111, while the locking bolt 104 is being brought to its transition position. By further rotation of the locking bolt 104 and movement of the locking bolt 104 to a direction opposite to the first flange 107a, the locking bolt reverts to its unlocked position.

In the unlocked position, the locking bolt 104 does not extend from the first opening 109. In this position, the first opening 109 is free to be displaced with respect to the second opening 106b, e.g., when the door to which the sliding bolt latch 102 is opened by a user with respect to a frame, to which the brace 106 is mounted. In the locked position, the locking bolt 104 fully extends through the first opening 109 and the second opening 106b, thereby arresting the door portion to its frame.

The above elements of the sliding bolt latch 102 and the brace 106 are disclosed in PCT application publication No. WO 2016/113722 (the content of which is incorporated herein by reference), except for the restricting device 110.

The restricting device 110 of the examples of Figs. 6A-6D is an add-on which is mountable into the brace 106 for restricting movement of the locking bolt 104 along the main axis Y', and thereby for preventing and/or allowing the locking bolt 104 to be displaced from its locked position to its unlocked position, and from its unlocked position to its locked position. The restricting device 110 is thus configured for preventing the locking bolt 104 from assuming its transition position, as detailed below.

The restricting device 110 comprises a restricting member 121 and a manipulator 114 to which the restricting member 121 is mounted for selectively rotating the restricting member 121 between its unrestricting position (Figs. 1 A, IB, 2A and 2B) and its restricting position (Figs. 6A-6C) about a rotation axis X' (shown in Fig. 6A). The restricting member has two support portions 122a and 122b coaxially disposed at opposite sides of the restricting member and defining the rotation axis X'. The support portions 122a and 122b are configured for supporting the restricting member at two sides thereof when the restricting device 110 is mounted within the locking system 100. The manipulator 114 has two manipulator parts 114a and 114b extending from the support portions 122a and 122b, respectively. The manipulator part 114a is provided with a locking mechanism having a key 118 configured for rotation thereof. Without the key 118, said rotation is not possible. The restricting member 121 has a passage 123 having a passage axis Z'. The passage 123 extends through the restricting member 121 between a first open end 125 and a second open end 127. The first open end 125 and the second open end 127 are collinear with respect to each other, and the passage 123 is sized and shaped so as to receive a respective portion of the locking bolt 104.

Reference is now made specifically to Fig. 6A, in which the restricting member 121 is rotated to its unrestricting position. In this position, the first opening 125 is aligned with the first opening 109 and the second opening 106b, so that the passage axis Z' is aligned with the main axis Y' of the locking bolt 104, and the path for movement of the locking bolt 104 is fully established.

As shown in Fig. 6B, in the unrestricting position of the restricting member 121, the locking bolt 104 is displaced to its transition position, while a portion 130 thereof has passed through the second open end 127. From the transition position of Fig. 6B, the locking bolt 104 is displaced to its locked position of Fig. 6C.

Reference is now made to Fig. 6D. As shown in this figure, the restricting member 121 is rotated to its restricting position in order to prevent the sliding bolt latch 102 from being unlocked with respect to the brace 106. In this position, the first opening 125 is misaligned with the first opening 109 and the second opening 106a, so that the passage axis Z' is angled with the main axis Y' of the locking bolt 104 at an angle of 90 degrees, and the path for free movement of the locking bolt 104 along the main axis Y' is interrupted.

As shown in Fig. 6D, in the restricting position of the restricting member 121, the locking bolt 104 cannot be displaced to its transition position, and as a result of that to its unlocked position, so that the door to which the sliding bolt latch 102 is mounted, cannot be unlocked with respect to its frame, to which the brace 106 is mounted. In the restricting position, a bolt end 117 of the locking bolt 104 engages a restricting portion 129 of the restricting member 121. As can be seen in Fig. 6B, in the unrestricting position, the locking bolt 104 can be moved from its locked position to its transition position along a first maximal distance Dl'. In the restricting position, the locking bolt 104 is not displaceable at all. Reference is now made to Figs. 7A-7C illustrating a locking system 200 including a restricting device 210, in accordance with a third example of the presently disclosed subject matter.

The locking system 200 includes a sliding bolt latch 202 and the restricting device 210, which is disposed at a rear side of the sliding bolt latch 202. The sliding bolt latch 202 can be mounted to a door, and a brace 215 can be mounted to a door frame surrounding the door.

The sliding bolt latch 202 comprises a locking bolt 204 and a base 207 within which the locking bolt 204 is mounted. The locking bolt 204 has a handle 205 configured for being held by a user for displacement of the locking bolt 204 along a path extending along a main axis Y", and rotation of the locking bolt 204 about the main axis Y". The base 207 has a first side wall 207a and a second side wall 207b through which the locking bolt 204 extends and is rotatable.

The first side wall 207a has a first opening 209, and the brace 215 has a second opening 215a configured for receiving a first portion 205a of the locking bolt 204.

The locking bolt 204 is displaceable through the second opening 215a between an unlocked position (i.e., a first extreme position) shown in Figs. 7B and 7C, and a locked position (i.e., a second extreme position) shown in Fig. 7A. In the unlocked position, the handle 205 is received within a first recess 218, and in the locked position, the handle 205 is received within a second recess 216.

To displace the locking bolt 204 from its unlocked position (Figs. 7B and 7C) to its locked position (Fig. 6A), the locking bolt 204 is rotated in a counterclockwise direction, and is pushed along the main axis Y' ' toward the brace 215, terminating in clockwise rotation of the locking bolt 204, resulting in introduction of the handle 205 into the second recess 216. In order to displace the locking bolt from its locked position to its unlocked position, the opposite of the above operations should be performed.

The above elements of the sliding bolt latch 202 and the brace 215 are well known in the art, except for the restricting device 210.

The restricting device 210 of the examples of Figs. 7A-7C is an add-on which is mountable in line with the locking bolt 210, and in proximity to the second side wall 207b for restricting movement of the locking bolt 204 along the main axis Y" from its locked position to its unlocked position. The restricting device 210 is thus configured for preventing the first portion 205a of the locking bolt 204 to disengage the brace 215, as detailed below.

The restricting device 210 comprises a restricting member 221 and a manipulator 214 to which the restricting member 221 is mounted, for selectively rotating the restricting member 221 between its unrestricting position (Figs. 7B and 7C) and its restricting position (Fig. 7A) about a rotation axis X". The restricting member has two support portions 222a and 222b coaxially disposed at opposite sides of the restricting member and defining the rotation axis X". The support portions 222a and 222b are configured for supporting the restricting member at two sides thereof when the restricting device 210 is mounted within the locking system 200. The manipulator 214 has two manipulator parts 214a and 214b extending from the support portions 222a and 222b, respectively. The manipulator part 214b is pivotally mounted to a base member 213, having a flange 212 with a flange opening 212a, through which the locking bolt 204 extends. The manipulator part 214a is provided with a locking mechanism having a key 219 configured for rotation thereof. Without the key 219, said rotation is not possible.

The restricting member 221 has a passage 223 having a passage axis Z". The passage 223 extends through the restricting member 221 between a first open end 225 and a second open end 227. The first open end 225 and the second open end 227 are collinear with respect to each other, and the passage 223 is sized and shaped so as to receive a second portion 205b of the locking bolt 204.

As shown in Fig. 7C, the restricting device 210 has a housing 230 that covers the restricting member 221 while providing access to the key 219.

Reference is now made specifically to Fig. 7B, in which the restricting member 221 is rotated to its unrestricting position. In this position, the first opening 225 is aligned with the flange opening 212a and with an opening of the second side wall 207b, so that the passage axis Z" is aligned with the main axis Y" of the locking bolt 204, and the path for movement of the locking bolt 204 between its locked and unlocked positions is fully established.

As shown in Figs. 7B and 7C, in the unrestricting position of the restricting member 221, the locking bolt 204 is displaceable to its unlocked position, while the first portion 205a has passed through the first open end 225 and the second open end 227.

Reference is now made to Fig. 7A. As shown in this figure, the restricting member 221 is rotated to its restricting position in order to prevent the sliding bolt latch 202 from being unlocked with respect to the brace 215. In this position, the first opening 225 is misaligned with the flange opening 212a, so that the passage axis Z" is angled with the main axis Y" of the locking bolt 204 at an angle of 90 degrees, and the path for free movement of the locking bolt 204 from its locked position to its unlocked position along the main axis Y" is interrupted.