RU2350726C1 - Handle for locking devices - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: invention relates to hardware, specifically, to handle of clamping device. Latter comprises a strip with holes to receive fastening elements. The said strip accommodates the handle fitted revolve therein and coupled with polyhedron rod and has, at least, one flexible element. Aforesaid rod has, at least, one crosswise slot on, at least, one face. Note here that, at least, one flexible element is located across the said rod and spring-loaded towards it. Note also that the said element can be fitted into the aforesaid slot.

EFFECT: reliable locking of handle at certain discrete positions.

7 dwg

Description

The invention relates to the field of hardware and relates to a handle for shutting a door, window or other similar element intended for landing on a rod, which acts in conjunction with a locking device.

Known handle for locking devices. To unlock it, the handle is pulled all the way to the stop, withdrawing the square portion of the rod from the curly opening of the housing, and rotate it by 45 °. In this case, the valve disengages from the locking strip, unlocking the lock. In this position, the handle is released from axial movement, and under the action of the spring, a square section of the rod enters the figured hole, fixing the lock in the unlocked position, see SU 1712568. This handle is difficult to manufacture and unreliable in operation.

From the Swedish patent 454715, a sash handle is known to be mounted on a square bar and including a wall mounted socket, in which a square bar located in a blind hole made in the door handle is rotatably mounted. The handle interacts with a coil spring or torsion spring so that it returns to its initial position after turning the handle. The spring has first and second outward curved end parts for joint action with the stop elements on the socket and on the spring holder, respectively. The assembly also contains a lock washer having a central hole adapted to receive a square rod.

This handle does not provide interchangeability of commercially available door handles, among other reasons, due to the orientation of the square bar in its initial passive position, i.e. when it is not exposed to rotational force.

Another serious drawback is the inability to use these handles on the right or left sides of the door without certain installation work, consisting, for example, in the rearrangement of the torsion spring.

Known handle for locking devices from the application EP 0791703, 1997, which can be used for both right and left doors, in the body of which are two forks, directed towards each other and made elastic. The ends of the forks fix a square rod connected to the handle. However, this design of the handle is unreliable in that in fixed positions the handle is held only due to the elastic properties of the forks, which causes a large backlash and consequently increased wear. Another disadvantage is that the forces arising in the forks during rotation of the handle, lead to a quick break of their branches.

The technical task of the invention is the creation of a simple, reliable handle for locking devices that can work with any commercially available locking mechanism without any readjustment of its mechanism and rearrangement of parts, as well as with increased reliability of fixing discrete positions of the rod connected to the handle. The technical result achieved by the implementation of this invention is also to reduce material consumption, simplify the design, increase the manufacturability of the manufacture of the handle and increase the usability of the handle in terms of ergonomic requirements.

The specified technical result is achieved in that the handle for locking devices contains a pad with holes for fasteners installed in the pad with the possibility of rotation of the handle connected to the rod in the form of a polyhedron, and at least one elastic element. The rod has at least one transverse groove on at least one face, and at least one elastic element is located across the rod, spring-loaded to it and has the ability to be placed in the groove.

The invention is illustrated by drawings, which depict:

figure 1 is a General view of the handle, in isometric, bottom;

figure 2 is a General view of the handle, in isometric view, from above;

figure 3 is a right view;

figure 4 is a General view with a section bb in figure 3;

figure 5 is a section aa in figure 3;

figure 6 - rod with grooves;

7 is a mounting element of the elastic element.

The handle for locking devices contains a cover 1 with holes through which fasteners 2 pass. The cover is mounted on the leaf of the sash and fastened to it, for example, by screws. A handle 3 is mounted in the cover plate with the possibility of rotation. The handle 3 can be connected to the rod 4 in the form of a polyhedron, for example, of a square section. The lining 1 is made round, and its holes are located diametrically relative to its vertical axis. The handle 3 is located in the center of the lining 1, and its thickness decreases in height in the direction from the lining, and the two opposite sides of the handle are curved concave. In the upper part, the handle has a rounded profile. The length of the handle 3 is such that in one of the positions it has the ability to overlap the holes for the fasteners 2. To reduce the material consumption, the handle 1 is hollow. All parts can be obtained both by casting and stamping without further processing, which simplifies the manufacturing process and saves material.

At least one elastic element 5 is located in the overlay 2 between the door leaf and the overlay, and FIG. 3 shows two elastic elements 5 located on both sides of the rod 4. For fixing the elastic elements in the overlay, an installation element 6 is mounted inside it. element 6 has holes for fasteners 2 and a Central hole for the passage of the rod 4. In the rod 4 is made at least one transverse groove 7 on at least one face, and at least one elastic element 5 is located across the rod, inen to it and has the ability to be placed in the groove 7. In Figs. 3 and 7, two elastic elements 5 and two grooves are shown 7. The mounting element 6 has processes 8 that are diametrically arranged and have holes for fixing the ends of the elastic element 5 in them. Figure 7 shows the process 8 having two such holes, and they are spaced in height. In the case of using two elastic elements 5, they are located in the mounting element 6 crosswise, which ensures reliable fixation of the handle in one of its discrete positions.

The handle works in the usual mode for these mechanisms.

The proposed handle has high performance in operation, reliable, has no backlash and ensures smooth and noiseless operation of the handle. The handle is equally used on the left or right-hand wing.

The execution on the rod 4, which transmits the movement of the locking devices, a groove 7, into which the transversely located elastic element 5 elastically enters, ensures the durability of the device, smoother characteristics of the change in the effort on the handle when the handle is rotated through an angle from 0 ° to 60 ° in comparison with others designs reduces backlash and provides reliable fixation of discrete positions of the handle.

Claims (1)

A handle for locking devices, comprising a rotatably mounted handle connected to the rod in the form of a polyhedron, and at least one elastic element, characterized in that the rod has at least one transverse groove on at least one face, and at least one elastic element is located across the rod, spring-loaded to it and has the ability to be placed in the groove.

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