The present invention refers to an adjustable handle comprising a system for fastening the handle and for adjusting the angular position of the handle with respect to its axis.

In particular, the invention refers to an adjustable handle for doors adapted to be used with different types of locks, of the type known as European lock or recessed lock, and of the Anglo- Saxon or American type or with tubular latch.

Known handles comprise connecting elements to the lock integrated therein, for example a connecting bar or mechanisms for converting motion from rotary to rectilinear, which must be inserted in the lock in predetermined positions.

These handles however are not satisfactory and have the problem that, having to connect the connecting elements to the lock in the predetermined positions, it becomes difficult to fasten them to the door and adjust the angular position of the handle with respect to its axis, in order to have the handle perfectly aligned in the required position.

Object of the present invention is solving the above prior art problem, by providing an adjustable handle which allows an easy fastening to the door and simultaneously allows adjusting its angular position with respect to its axis.

The above and other objects and advantages of the invention, as will result from the following description, are obtained with an adjustable handle as claimed in claim 1. Preferred embodiments and non-trivial variations of the present invention are the subject matter of the dependent claims.

It is intended that all enclosed claims are an integral part of the present description.

The present invention will be better described by a preferred embodiment thereof, provided as a non-limiting example, with reference to the enclosed drawings, in which:

- Figure 1 is an exploded view of an adjustable handle according to the present invention;

- Figure 2 is a side view of a section of an adjustable handle according to the present invention; and

- Figure 3 is a view of an enlarged part of an adjustable handle according to the present invention .

With reference to the Figures, a preferred embodiment of the adjustable handle 10 of the present invention is shown and described. It will be immediately obvious that numerous variations and modifications (for example related to shape, sizes, arrangements, various colors and parts with equivalent functionality) can be made to what is described, without departing from the scope of the invention as appears from the enclosed claims.

The adjustable handle 10 of the invention comprises a grip 11 assembled rotatable on a hollow handle body 46 around its first axis X-X and is adapted to be assembled on a door associated with an European lock or a recessed lock or an Anglo- Saxon or American lock or a lock with tubular latch .

Preferably, the grip 11 is assembled on the hollow handle body 46 and is rotatable around the first axis X-X of the handle body 46; the handle 10 comprises a rotary element 35 associated with the grip 11 and assembled rotatable around the first axis X-X; a connecting bar 45 is connected to the rotary element 35 and is adapted to connect the handle 10 to a lock.

The handle body 46 is hollow, preferably of a cylindrical shape, and contains therein the components of the handle 10.

The grip 11 comprises at one of its ends a hollow supporting element 51, preferably of a cylindrical shape, and is assembled rotatable around the first axis X-X of the handle body 46 and of the supporting element 51, in order to allow the grip 11 to rotate with respect to the handle body 46.

In a preferred way, the handle 10 comprises a first hollow cam element 16 of a cylindrical shape, having a first end in contact with the grip 11, preferably with the supporting element 51, and a second end 26 having a cam profile.

The first cam element 16, in a preferred way the supporting element 51, is assembled rotatable on an hollow internal support 31, preferably of a cylindrical shape, and the grip 11 is associated with the first cam element 16 and is adapted to transmit thereto the rotary motion around the first axis X-X.

Preferably the grip 11 is abutted onto the first cam element 16, for example on first surfaces 22 obtained inside the supporting element 51, which abut onto second surfaces 23 obtained on the first end of the first cam element 16 in contact with the grip 11, in particular with the supporting element 51.

The first surfaces 22 abutted onto the second surfaces 23 are adapted to transmit the rotary motion around the first axis X-X of the grip 11 to the first cam element 16.

Preferably, the grip 11 is connected to the first cam element 16 through a connecting element, for example composed of a screw.

The handle 10 for universal assembly of the invention further comprises a second hollow cam element 18, preferably of a cylindrical shape, with a cam profile at a first end 28 thereof in contact with the second end 26 of the first cam element 16, also having a cam profile.

The two cam profiles of the two ends 26 and 28 in mutual contact of the first cam element 16 and of the second cam element 18 are complementary and have such a shape as to change the heights of the first cam element 16 and of the second cam element 18 in the direction of the first rotation axis X-X of the handle 10. The two cam profiles of the two ends 26 and 28 of the first cam element 16 and of the second cam element 18 are adapted to convert the rotary motion of the first cam element 16 and of the grip 11 associated therewith, into a translation motion of the second cam element 18, as will be explained below in more detail.

The second cam element 18 comprises a stopping element 24, preferably a shoulder 24, obtained at a second end thereof opposite to its first end 28 having a cam profile, said stopping element 24 being adapted to form a first stopping surface for an elastic element 25, preferably a helical spring 25; the internal support 31 has a base 32 projecting and adapted to form a second stopping surface 34 for the elastic element 25.

The elastic element 25 is adapted to keep in contact the first cam element 16 with the second cam element 18, as will be explained below in more detail.

The internal support 31 comprises an opening 27 obtained in the base 32; the base 32 is composed for example of a circular crown, which projects from the external surface of the internal support 31 and forms the second stopping surface 34 for the helical spring 25, which is transverse, preferably perpendicular, to the first rotation axis X-X of the handle 10 and to the external surface of the internal support 31.

In addition to the base 32, the internal support 31 comprises a first sector 38 with smaller diameter than the base 32, and a second sector 36 with smaller diameter than the first sector 38.

The first cam element 16 is assembled rotatable on the second sector 36 and the second cam element 18 is assembled rotatable on the first sector 38, with the cam profiles of their respective ends 26 and 28 kept mutually in contact by the thrust of the elastic element 25.

The handle 10 of the invention comprises the rotary element 35, preferably of a cylindrical shape, assembled rotatable around the first axis X- X and connected to the connecting bar 45.

The rotary element 35 is assembled rotatable around the first axis X-X, preferably inside the internal support 31, in the first sector 38, in order to abut against a first step 37 which is formed between the first sector 38 and the second sector 36 of the internal support 31, and preferably has a diameter substantially equal to the internal diameter of the first sector 38.

The rotary element 35 comprises a cam slit 39 and is associated with the second cam element 18 by means of connecting elements 41 inserted into the cam slit 39, preferably composed of pegs 41 inserted inside holes obtained in the second cam element 18; the pegs 41 cross the internal support 31 next to longitudinal slits 42 obtained in the first sector 38 of the internal support 31, in order to leave the pegs 41 free of sliding inside the slits 42, when the second cam element 18 moves along the direction of the first axis X-X.

The connecting elements 41 inserted into the cam slit 39 of the rotary element 35 are adapted to convert the translation motion of the second cam element 18 into a rotary motion of the rotary element 35 and of the connecting bar 45 connected thereto, as will be explained below in more detail.

Preferably, the pegs 41 are inserted inside holes obtained in the second cam element 18 which are perpendicular to the first rotation axis X-X of the handle 10.

The connecting bar 45 connected to the rotary element 35 is hollow, has a polygonal, preferably squared, section, and is adapted to connect the handle 10 to a lock, for example of the recessed type, installed in a door; preferably, the connecting bar 45 is fastened in a known way to the rotary element 35, for example is welded or screwed thereto.

Preferably, the connecting bar 45 is housed inside a recess 33, having the same section of the connecting bar 45, which is obtained at an end of the rotary element 35.

The handle body 46, inside which the components of the handle 10 are assembled, has a closed end 47 and the opposite end open.

In particular, the closed end 47 of the handle body 46 is drilled to allow the passage of the connecting bar 45; the hole of the closed end 47 has a smaller diameter than the rotary element 35 and forms a second step 57 against which the rotary element 35 and the base 32 of the internal support 31 abut, to keep the rotary element 35 inside the first sector 38.

The internal support 31 contained in the handle body 46 is connected to the handle body 46, preferably is fastened onto the closed end 47 of the handle body 46 with screws 48.

The components of the handle 10, in particular the first cam element 16, the second cam element 18, the internal support 31, the rotary element 35 and the closing element 61, are kept inside the handle body 46 by a stopping element 78, for example a Seeger ring, connected to the second sector 36 of the internal support 31 and assembled in contact with the first cam element 16.

The adjustable handle 10 of the invention comprises a fastening element 72 capable of being fastened to a door and comprising first fastening means 73 adapted to cooperate with second fastening means 74 capable of being connected to the handle body 46 for fastening the handle 10 to a door; preferably, the fastening element 72 comprises adjusting means 75 adapted to adjust the angular position of the handle 10.

For example, the fastening element is a disk 72 on which holes 73 are obtained, which compose the first fastening means, and slits 75, which compose the adjusting means and allow adjusting the angular position of the handle, allowing to rotate the disk 72 with respect to screws inserted in the slits 75.

The disk 72 is adapted to be fastened, for example screwed, to a door and is adapted to cooperate with the second fastening means 74 capable of being connected to the handle body 46 of the handle 10, for fastening the handle 10 to the door; the second fastening means 74 are for example composed of a threaded lock nut 74, capable of being screwed onto a threading obtained on the handle body 46, as shown in Figure 3; the disk 72 is drilled to allow the passage of the connecting bar 45, and comprises a first abutment element 79 adapted to be assembled abutted against a second abutment element 80 of the lock nut 74, in order to keep the lock nut 74 in contact with the door, leaving it free of rotating with respect to the disk 72.

The fastening element 72 further comprises first reference elements 76, for example holes 76, which cooperate with second reference elements 77, for example pegs 77, made on the handle body 46 to determine the angular position of the handle 10, in particular to determine the angular position of the handle body 46 with respect to the fastening element 72.

Optionally, the handle 10 of the invention can comprise a closing element or cylinder 61 assembled rotatable in the internal support 31, comprising a shaped groove 62 adapted to block the handle 10, preventing the movement of the pegs 41, and therefore of the second cam element 18, along the direction of the first axis X-X, preventing thereby the rotation of the connecting bar 45.

The cylinder 61 comprises a first part 64 inserted inside the second sector 36 of the internal support 31, in order to abut against a third step 67 formed in the second sector 36 of the internal support 31.

The cylinder 61 comprises a second part 65 inserted inside an upper seat 68 obtained in the rotary element 35, in the area next to the cam slit 39.

The shaped groove 62 is obtained in the second part 65 of the cylinder 61 and is adapted to house the two pegs 41 which are inserted into the cam slit 39 and into the two holes obtained in the second cam element 18.

The shaped groove 62 comprises a transverse part to the first axis X-X which is adapted to prevent the movement of the second cam element 18, therefore blocking the rotation of the connecting bar 45 and of the handle 10, and a longitudinal part which allows the movement of the second cam element 18 and allows unlocking the handle 10.

Preferably, the cylinder 61 is associated with a pawl 63 and/or a key 69.

In addition to a lock of the European type or recessed type as previously described, the adjustable handle 10 of the invention comprises an embodiment for use in a lock of the Anglo-Saxon type or a lock with tubular latch, which comprises a connecting stem 71 directed between two handles of a door and their respective closing elements 61, which allows locking and unlocking the opening mechanism from both handles assembled on the door, contained inside the hollow connecting bar 45; the stem is connected at one of its end to the cylinder 61, preferably with its second parte 65.

The operation of the adjustable handle 10 according to the present invention will now be described .

The handle 10, and in particular the grip 11, with its rotation motion with respect to the handle body 46 around the first axis X-X, drives the rotation of the connecting bar 45.

The grip 11 transmits the rotation motion to the first cam element 16, due to the first surfaces 22 of the grip 11, which are abutted onto the second surfaces 23 of the first cam element 16.

The rotation motion of the first cam element 16 slides the second end 26 of the first cam element 16, having a cam profile, on the first end 28 of the second cam element 18, also with a cam profile, causing the movement of the second cam element 18 along the direction of the first axis X- X of the handle 10.

This movement of the second cam element 18 along the direction of the first axis X-X of the handle 10 occurs both with the clockwise rotation of the grip 11 and with its counterclockwise rotation .

In this step, the first cam element 16 and the second cam element 18 are preferably kept mutually in contact due to the action of the elastic element 25.

The motion of the second cam element 18, and of the pegs 41 connected thereto, along the direction of the first axis X-X of the handle 10 is therefore transmitted from the pegs 41 to the cam slit 39 of the rotary element 35, making it rotate.

Together with the rotation of the rotary element 35, there occurs the rotation of the connecting bar 45 connected thereto, and consequently the handle 10 is adapted to drive the latch of a lock of the European type or recessed type connected to the connecting bar, installed in a door.

The assembly of the adjustable handle 10 of the invention on a door will now be described, in the embodiment for which the second fastening means 74 are composed of the threaded lock nut 74 and the fastening element 72 is the disk 72.

In a first step, the lock nut 74 is assembled against the door, and the disk 72 is assembled abutting against the lock nut 74, with the first abutment element 79 of the disk 72 assembled abutting against the second abutment element 80 of the lock nut 7 .

In a second step, the disk 72 is screwed onto the door, for example with two screws inserted into the slits 75, in order to keep the lock nut 74 blocked between the disk 72 and the door, but free of rotating.

In a third step, the adjustable handle 10 is assembled on the disk 72, by inserting the pegs 77, obtained on the handle body 46, into the holes 76 of the disk 72, and the threaded lock nut 74 is rotated by screwing it onto the handle 10, and in particular onto the threading obtained on the handle body 46.

Once the lock nut 74 is screwed onto the adjustable handle 10, it can be checked whether the handle is aligned in its correct position.

If the handle 10 is not correctly aligned, the handle is unscrewed, by rotating the lock nut 74 and the angular position of the handle is adjusted by rotating the disk 72 using the slits 75.

The adjustment can be repeated till the handle is correctly aligned.

Finally, the disk 72 is blocked by screwing the screws into the holes 73 and blocking the screws in the slits 75, and the handle is fastened by screwing the lock nut 74 onto the threading obtained on the handle body 46.

Advantageously, the adjustable handle of the invention allows an easy fastening onto the door and simultaneously allows adjusting the angular position of the handle with respect to its axis, and obtaining a perfect alignment of the handle.