TECHNICAL FIELD

The present invention relates to a door retaining mechanism which provides the door to stay at desired steps and at desired angles in vehicles.

PRIOR ART

Today, in automotive sector, door retaining mechanisms are used which have various functions and which connect vehicle doors and door body to each other. Said door retaining mechanisms have a structure which provides staying of the door at predetermined steps and angles.

The application with reference number US4684158 relates to a device for retaining a door in open position, comprising two toothed elements of resilient material, positively connected to the door post and the door leaf, respectively, and adapted to mesh with one another during the opening of the door leaf so as to retain the same in open position at a desired opening angle.

The door checker for an automobile disclosed in the application with reference number US2006230574 comprises the following: a case fixed to one of a body and a door of the automobile; a check lever movably penetrating the case, oscillatably axis-supported by the other of the body and the door, and provided with a rack on one side face; a pinion meshed with the rack and rotatably housed in the case; a movable shoe housed in the case so that the movable shoe can be engaged with and disengaged from a tooth portion of the pinion; and a check spring for biasing the movable shoe in the direction of engagement with the pinion. The door is held at an arbitrary opening degree by an engaging force of the movable shoe with the pinion due to a biasing force of the check spring. Thus, it is possible to easily set a large number of steps in an opening degree for holding the door.

The application with reference number W02007031073 relates to support housing, comprising a housing part for an active component of a door stay, the housing part having at a first end an opening for receiving the active component. The problem of developing a support housing which can be produced on an industrial scale easily and flexibly in line with changing requirements is solved by the invention in that the housing part comprises a cut-off extruded profile. The invention also relates to a door stay comprising a stay bar with a first side, a first active component, which co-operates with the first side of the stay bar, and a support housing with a first housing part, the first end of which is open, and with an opening for the first active component, the first housing part comprising a cut-off extruded profile.

In the present systems, these door retaining mechanisms have an embodiment which stops at delimited number of specific angles. While vehicle door is being opened and closed, in the passages between steps, there is no mechanism which fixes the door in a controlled manner. Therefore, undesired hitting, jamming, friction, scratch and noise occur at the vehicle door.

As a result, because of all of the abovementioned problems, an improvement is required in the related technical field.

BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to a door retaining mechanism, for eliminating the above mentioned disadvantages and for bringing new advantages to the related technical field.

An object of the present invention is to provide a door retaining mechanism which can stop the door at desired steps and angles in vehicles.

In order to realize all of the abovementioned objects and the objects which are to be deducted from the detailed description below, the present invention is a door retaining mechanism having a holding arm, an upper hub and a lower hub provided in a manner tightening the holding arm in between and which controls opening of the door in vehicles. Accordingly, the holding arm, provided at least partially in cylindrical form, is configured to have rotational freedom in its own axis, the holding arm comprises at least one threaded part which extends partially thereon and a non-threaded part which extends at the continuation of the threaded part, and at least one thread is provided on the surfaces of the lower hub and the upper hub pressing the holding arm in a compliant manner to the threaded part. Thus, when the non-threaded part is between the upper hub and the lower hub, the door is easily moved, and when the threaded part is between the upper hub and the lower hub, the door stays fixed in any position where it is left. In a possible embodiment of the present invention, the thread is provided at one each grabbing inlet provided on the sides of the lower hub and the upper hub facing the holding arm.

In a possible embodiment of the present invention, the grabbing inlet partially encircles the holding arm.

In a possible embodiment of the present invention, at least one guide extension is provided on the non-threaded part. Thus, when the non-threaded part enters between the upper hub and the lower hub, rotation of the holding arm is prevented and it easily slides between the upper hub and the lower hub.

In a possible embodiment of the present invention, the guide extension is provided symmetrically at the two sides of the non-threaded part.

In a possible embodiment of the present invention, at least one of the lower hub and the upper hub comprises at least one step wherein the guide extension is placed.

In a possible embodiment of the present invention, an upper body is provided wherein the upper hub is placed and a lower body is provided wherein the lower hub is placed where said upper body and said lower body are positioned such that there is a predetermined distance in between.

In a possible embodiment of the present invention, in order to push at least one of the upper hub and the lower hub towards the other one, at least one of an upper spring, provided in the upper body, and a lower spring, provided in the lower body, is provided.

In a possible embodiment of the present invention, at least one upper cover is provided for encircling the upper spring inside the upper hub.

In a possible embodiment of the present invention, at least one lower cover is provided for encircling the lower spring inside the lower hub.

In a possible embodiment of the present invention, at least one pin opening is provided coaxially on the upper cover, the upper body, the upper hub, the lower hub, the lower body and the lower cover and at least one connection pin is provided which is placed to said pin opening. In a possible embodiment of the present invention, at least one step part is provided at the section of the connection pin which stays between the upper body and the lower body.

In a possible embodiment of the present invention, at least one protrusion is provided outside of the upper hub and the lower hub and at least one channel is provided in at least one of the upper body and the lower body. Thus, the lower hub and the upper hub are prevented from rotating around their own axes in an independent manner from the lower body and the upper body. Moreover, the movements of the lower hub and the upper hub during approaching and diverging thereof are guided.

In a possible embodiment of the present invention, the holding arm comprises at least one head part. Thus, the removal of the holding arm from between the lower hub and the upper hub is prevented.

In a possible embodiment of the present invention, at least one outer body is provided which encircles the upper cover and the lower cover from below and from above.

In a possible embodiment of the present invention, at least one each center openings are provided on the upper cover and the lower cover and at least one each connection elements are provided which are bedded to the outer body by means of one each bushings and which are placed to the center openings. Thus, the connection of the mechanism, which stays between the upper cover and the lower cover, to the outer body in a manner having rotational freedom in a mechanism rotation axis is provided.

In a possible embodiment of the present invention, at least one first connection plate is provided for providing connection of the outer body to the door or to the vehicle body.

In a possible embodiment of the present invention, at least one second connection plate is provided for providing connection of the holding arm to the door or to the vehicle body.

In a possible embodiment of the present invention, at least one hinge housing is provided for providing connection of the holding arm to the second connection plate so as to have rotational freedom and at least one hinge is provided having at least one spherical end placed to the hinge housing.

In a possible embodiment of the present invention, the hinge is connected to the holding arm through a connection part. BRIEF DESCRIPTION OF THE FIGURES

Figure 1 is a representative lateral view of the subject matter door retaining mechanism.

Figure 2 is a representative exploded view of the subject matter door retaining mechanism.

Figure 3 is a representative isometric view of the upper body and of the lower body provided in the same manner in the subject matter door retaining mechanism.

Figure 4a, 4b and 4c are the representative isometric, cross sectional and lateral views of the upper hub and of the lower hub provided in the same manner in the subject matter door retaining mechanism.

Figure 5 is a representative lateral view of the subject matter door retaining mechanism where the non-threaded part is provided between the upper hub and the lower hub.

Figure 6 is the cross section of the view given in Figure 5.

Figure 7 is another cross section of the view given in Figure 5.

Figure 8 is the cross sectional view of the condition where the threaded part is positioned between the upper hub and the lower hub given in Figure 1.

Figure 9 is another cross sectional view of the view given in Figure 1 .

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the subject matter door retaining mechanism (1 ) is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

The subject matter door retaining mechanism (1 ) is connected to the door from one side and connected to the vehicle body from one side. Accordingly, there is a mechanism body (20) connected to a first connection plate (10) and there is at least one holding arm (90) extending from a second connection plate towards the mechanism body (20). With reference to Figure 1 and 2, there is an outer body (30) connected to the first connection plate (10). The outer body (30) has an upper wall (32) and a lower wall (33) provided such that there is a predetermined distance in between. There is a lateral wall (34) extending between said lower wall (33) and said upper wall (32). There are one each connection flaps (31 ) connected to the lower wall (33) and the upper wall (32). The outer body (30) is connected to one of the door and the vehicle body together with the first connection plate (10) through the connection flaps (31 ).

There is at least one upper body (50a) and at least one lower body (50b) positioned between the upper wall (32) and the lower wall (33). As can be seen in Figure 3, there is at least one each pin openings (42) provided on the lower body (50b) and on the upper body (50a). One each pin openings (42) are provided at the four corners. There is at least one each connection pins (75) which pass through each pin opening (42). There is at least one step part (751 ) provided on the connection pin (75). The step part (751 ) is provided in the vicinity of the middle of the connection pin (75). The diameter of the step part (751 ) is provided to be greater than the pin openings (42). Thus, the step part (751 ) is prevented from entering into the pin openings (42). The step part (751 ) stays between the upper body (50a) and the lower body (50b). Thus, the upper body (50a) and the lower body (50b) are positioned such that there is a predetermined distance in between. The ends of the connection pins (75) which extend outwardly from the upper cover (40a) and the lower cover (40b) are fixed by means of scrubbing process. Thus, the connection pins (75) are prevented from removing from the places thereof. There is an upper hub (70a) and a lower hub (70b) provided inside one each inner gaps (51 ) which are provided at the upper body (50a) and at the lower body (50b). There is an upper cover (40a) which covers the upper body (50a) and there is at least one lower cover (40b) which covers the lower body (50b). Moreover, there is at least one each upper springs (60a) and at least one lower spring (60b) provided inside the upper body (50a) and the lower body (50b). The upper spring (60a) is stopped to the upper cover (40a) from one end and it is stopped to the upper hub (70a) from the other end. The lower spring (60b) is stopped to the lower cover (40b) from one end and it is stopped to the lower hub (70b) from the other end. Thus, the upper hub (70a) and the lower hub (70b) are pushed towards each other. As can be seen in Figure 4a, there is at least one each protrusions (71 ) provided on the outer walls of the lower hub (70b) and the upper hub (70a). There is one each channels (52) provided in the inner gaps (51 ) of the upper body (50a) and the lower body (50b) in a compliant manner with said protrusions (71 ). When the lower hub (70b) and the upper hub (70a) are positioned in the lower body (50b) and the upper body (50a), the protrusions (71 ) are placed to the channels (52). Thus, the rotation of the lower body (50b) and the upper body (50a) in their axes is prevented. There is one each center openings (41 ) provided on the upper cover (40a) and on the lower cover (40b). Moreover, there is one each bearing holes (321 ) provided on the upper wall (32) and on the lower wall (33). At least one each connection elements (35) passing through the bearing holes (321 ) are connected to the center openings (41 ) provided on the upper cover (40a) and on the lower cover (40b). The connection elements (35) are positioned in the bearing holes (321 ) in a manner having rotational freedom. Thus, all items existing between the upper cover (40a) and the lower cover (40b) can rotate in the connection element (35) axis as a whole. There is at least one each bushings (36) which encircle the inner wall of the bearing holes (321 ). Said bushings (36) decrease the friction between the bearing holes (321 ) and the connection element (35).

The connection of the second connection plate (80) and the holding arm (90) is realized by means of a hinge (82). Accordingly, there is at least one hinge housing (81 ) provided on the second connection plate (80). A spherical end (821 ) provided on the hinge (82) is placed into a spherical recess (81 1 ) provided in the hinge housing (81 ). The hinge (82) is connected to the holding arm (90) through a connection part (822) provided on the side which is opposite with respect to the spherical end (821 ).

There is at least one thread (74) provided on the outer wall of the holding arm (90). In other words, the outer wall of the holding arm (90) comprises a threaded part (92) and a non- threaded part (93). There is at least one guide extension (94) which at least partially extends along the non-threaded part (93). Said guide extension (94) is provided in protrusion (71 ) form on the outer wall of the non-threaded part (93) and said guide extension (94) at least partially extends in the extension direction of the holding arm (90).

There are at least one each grabbing inlets (72) provided on the sides of the upper hub (70a) and of the lower hub (70b) facing the holding arm (90). The grabbing inlet (72) is provided in the form of a recess which is similar to a semi-circle and partially encircles the holding arm (90). There is at least one thread (74) provided in the grabbing inlet (72). The form of said thread (74) is provided in a compliant form to the threaded part (92) of the holding arm (90). Moreover, there are at least one each steps (73) provided on the two sides of the grabbing inlet (72). The form of said step (73) is provided in a compliant form to the guide extension (94) provided in the non-threaded part (93) of the holding arm (90). In other words, when the threaded part (92) of the holding arm (90) arrives between the upper hub (70a) and the lower hub (70b), the threads (74) at the grabbing inlet (72) are placed between the threads (74) on the threaded part (92). On the other hand, when the threaded part (92) of the holding arm (90) arrives between the upper hub (70a) and the lower hub (70b), the guide extension (94) on the holding arm (90) is placed to the step (73) provided in the vicinity of the grabbing inlet (72). There is at least one head part (95) provided at the idle end of the holding arm (90). Thanks to said head part (95), the holding arm (90) is prevented from passing through and removing from the mechanism body (20).

In a possible embodiment of the present invention, the first connection plate (10) and the mechanism body (20) are positioned on the vehicle body. The holding arm (90) provided on the second connection plate (80) connected to the door extends from the door into the mechanism body (20).

As can be seen in Figure 5, 6, and 7, when the door is closed, the guide extension (94) is tightened between the steps (73) of the upper hub (70a) and the lower hub (70b). Thus, as the door begins to be opened, the holding arm (90) slides between the upper hub (70a) and the lower hub (70b) without rotating until the end of the non-threaded part (93). Because of the press force of the springs, friction occurs between the lower hub (70b) and the upper hub (70a) and the holding arm (90). This partially decelerates the opening of the door.

When the door is continued to be opened, the guide extension (94) removes from the steps

(73). As can be seen in Figure 1 , 8 and 9, afterwards, the threaded part (92) enters between the upper hub (70a) and the lower hub (70b). Thus, the threads (74) in the grabbing inlet (72) and in the threaded part (92) overlap. Thus, as the door is opened, the holding arm (90) begins rotating around the own axis thereof and the holding arm (90) displaces between the lower body (50b) and the upper body (50a). The threaded part (92) makes difficult the movement of the holding arm (90). Thus, opening of the door is made difficult. In other words, the door is opened in a controlled manner. When the threaded part (92) enters between the lower hub (70b) and the upper hub (70a), the movement becomes difficult and thereby, the door stays fixed when the opening force exerted onto the door is removed. Thus, as long as the threaded part (92) is between the lower hub (70b) and the upper hub (70a), the door is fixed at any position.

When the door is desired to be closed, the movement is realized in the opposite manner. In other words, as long as the threaded part (92) is provided inside the mechanism body (20), closing of the door is difficult. Afterwards, while the non-threaded part (93) passes through the mechanism body (20), the resistance shown by the door retaining mechanism (1 ) decreases. Thus, the door is easily closed.

The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.

REFERENCE NUMBERS

1 Door retaining mechanism 10 First connection plate 20 Mechanism body

30 Outer body

31 Connection flap

32 Upper wall

321 Bearing hole

33 Lower wall

34 Side wall

35 Connection element

36 Bushing

40a Upper cover

40b Lower cover

41 Center opening

42 Pin opening 50a Upper body

50b Lower body

51 Inner gap

52 Channel 60a Upper spring

60b Lower spring

70a Upper hub

70b Lower hub

71 Protrusion

72 Grabbing inlet

73 Step

74 Thread

75 Connection pin

751 Step part 80 Second connection plate

81 Hinge housing

81 1 Spherical recess 82 Hinge

821 Spherical end

822 Connection part

90 Holding arm

91 Hinge connection end

92 Threaded part

93 Non-threaded part

94 Guide extension

95 Head part a Mechanism rotation axis