RU135347U1 - METAL DOOR CANVAS CONTROL DEVICE - Google Patents

Abstract

The device for controlling the backlash of the metal door leaf comprises a bracket with a rectangular cross-section, with two coaxial holes in the center of each side of the bracket through which the guide screw passes; on the guide screw between the sides inside the bracket there is a nut in a threaded connection with at least two degrees of freedom, in the center of the middle edge of the bracket there is a hole for the bolt of the latch; the guide screw is rigidly fixed to the frame from the inside so that the hole in the middle edge of the bracket is opposite the latch of the metal door lock, the bracket together with the nut has at least two degrees of freedom, while the edge of the hole in the middle edge of the bracket is the edge of the groove of the lock latch on frame.

Description

The invention relates to hardware, namely, to the design of metal doors in terms of the location of the lock having a latch. The utility model is intended for use in the design of a metal door and can be used to control the backlash of the door unit when installing the lock.

The design of the door, including the metal one, consists of a web and a frame (box), in which a hole is cut out under the bolt of the latch of the lock installed at the end of the web. The existing problem is that it is technologically difficult to dock all three parts (the frame, the door leaf and the latch bolt), so that the bolt fits exactly into the hole of the frame, and the hole of the frame under the latch bolt is exactly opposite the latch bolt already mounted in the door leaf. If an error occurs at this stage, a backlash (mobility) of the web can occur, which should not be. On the vertical axis, the frame hole for the crossbar can be made with an increased tolerance so that the lock latch is installed, and this does not affect the performance of the door. In the horizontal direction perpendicular to the plane of the door leaf, the inaccuracy of the location of the hole for the latch bolt will cause a loose contact of the door leaf to the door frame. The problem is typical for metal doors.

Known technical solution according to patent RU 89579 U8 ЕВВ 1/00, publ. December 10, 2009, according to which the DOOR according to claim 5 of the formula has two sealing circuits, one of which is located on the sash, and the second on the box. Thus, several tasks are solved, for example, noise isolation, as well as increasing the density of the junction of the door leaf to the frame (box). Disadvantage: the double seal circuit does not solve the problem of combining the lock bolt and the mate located in the door block box, in addition, as the seal is worn during operation, play may appear again.

Known technical solution according to patent RU 2216626 C2 EV 35/04, publ. November 20, 2003, according to which the DOOR LOCK contains a housing in which a bolt is installed by means of a guide, a lock placed in a groove, a spring, while the bolt has secret cutouts for interacting with cutouts on the key, and the lock is made non-demountable after mounting on the door due to manufacturing the retainer is integral in the form of a screw passing through the bolt, the head of which is recessed in the body of the bolt and placed on the side of the door leaf in the housing opening, which is closed after mounting the lock with the door leaf, and the nut on the screw thread after adjusting operated and installation is blocked, for example by welding, and serves as a handle for opening the bolt from the room. Disadvantage: a device with a nut on the screw thread that adjusts the lock position in the horizontal direction is related to adjusting the security of the lock, and does not affect the backlash control.

The closest to the destination is the technical solution according to patent RU 90111 U1 ЕВВ 3/00, publ. 12/27/2009, according to which a METAL DOOR, comprising a door leaf with a latch fixed inside, a metal door frame with a latch hole, the door leaf is pivotally connected to the door frame with the possibility of the latch entering the said hole of the box in the closed position, with this hole is made in a sleeve eccentrically mounted in a metal box, or in an eccentric sleeve associated with the box with the possibility of a fixed change in its position relative to the box and located tions thus opposite the latch in the closed door position. Disadvantage: adjustment with the use of a known device is notable for the complexity of manufacturing the device and even greater complexity of application, in addition, it does not help to solve the problem in all cases: often the direction of movement of the eccentric sleeve does not allow its location opposite the lock latch.

These shortcomings helps to eliminate the claimed utility model.

The metal frame (box) of the metal door is made according to the following technology: the required holes are made on the reamer of the metal part, and then on the bending or stamping equipment the frame becomes a volumetric part. In this case, an error is accumulated that does not allow the holes made in advance to take the exact place opposite the lock latch. With the current state of the art, it is difficult and expensive to achieve manufacturing accuracy such that the hole always occupies the desired position. The problem of the latch bolt getting into the frame hole concerns all metal doors with a latch. There is the mobility of the canvas, i.e. backlash, and the door when closed is not tightly adjacent to the frame.

To solve the described problem, a device for adjusting the backlash of the metal door leaf is proposed, which allows you to adjust the degree of pressing of the door leaf to the door frame (frame). The device consists of a bracket with a rectangular cross-section, with two coaxial holes in the center of each side, through which a guide screw passes; on the guide screw between the sides of the bracket (inside the bracket) in the threaded connection is a nut, the nut is movable. Moving the nut along the guide screw moves the bracket along the axis of the guide screw, the thread allows this to be done smoothly and to achieve accuracy of movement along the horizontal axis. In the center of the middle edge of the bracket, a rectangular hole is made for the bolt of the lock latch, the edge of which is the edge of the latch groove.

The control device is installed on the door frame in response to the latch of the lock on the inside of the frame (i.e., from the side of the wall), while the guide screw is rigidly fixed to the frame, for example, by welding, and the bracket and nut remain movable. Moving the nut moves the bracket, respectively, the bracket moves relative to the frame, and the rectangular hole of the bracket relative to the frame along a horizontal axis perpendicular to the plane of the door leaf. Thus, the device serves to adjust the gap between the bolts of the door leaf and frame locks when closing. Regulation is carried out by moving the bracket along the guide screw, which is driven by a nut rotating clockwise or counterclockwise, depending on the direction of regulation. After the installation of the door, test openings of the closing of the web are made. If the door in the closed position has easy walking in the horizontal direction, then by rotating the nuts in the device, the size of the play is changed to a greater or lesser side. In this case, the backlash control device does not move the lock, but moves the edge of the groove of the lock latch on the frame.

The backlash control device is not removable; it is mounted on the door frame from the side of the wall for welding. The backlash control device remains on the door frame for the entire life of the door so that you can use it at any time, because play during operation of the door may change (shrinkage of the house, drying of the seal or wear of the door parts). The guide screw, like the entire device, is located on the frame from the inside, while the guide screw is rigidly connected to the frame.

The common features with the prototype are only for the purpose - the technical task to be solved, the possibility of a fixed change in the groove of the lock latch relative to the frame (box) and thereby the location opposite the lock latch in the closed position of the door. The design of the proposed device, unlike the prototype, is simple and economical, characterized by its simplicity and ease of use when adjusting the backlash of the metal door leaf.

EFFECT: increased reliability of operation and improved operational properties of a metal door by adjusting the position of the bolt relative to the frame and eliminating the backlash of the metal door leaf.

The technical result is achieved by the design of the device for adjusting the backlash of the metal door leaf containing a bracket with a rectangular cross-section, with two coaxial holes in the center of each side of the bent side of the bracket through which the guide screw passes; on the guide screw between the sides inside the bracket there is a nut in a threaded connection with at least two degrees of freedom, in the center of the middle edge of the bracket there is a rectangular hole for the bolt of the lock latch; the guide screw is rigidly fixed to the frame from the inside (from the side of the wall) so that the hole in the middle edge of the bracket is opposite the latch of the metal door lock, the bracket together with the nut has at least two degrees of freedom, while the edge of the hole in the middle edge of the bracket is the edge of the groove of the lock latch on the frame.

The essence of the technical solution is illustrated by the images in FIG. 1-5:

FIG. 1 is a view of the device from the side of the plane of the door leaf.

FIG. 2 is a side view of the device (from the side of the door frame).

FIG. 3 is a top view of the device.

FIG. 4. - isometric view of the device.

FIG. 5 - view of the device during operation in the assembly with door parts, where

1 - bracket device

2 - movable nut,

3 - guide screw,

4 - lock latch;

5 - a frame of a metal door;

6 - a cloth of a metal door;

7 - place of fastening of the guide screw.

An example implementation.

The control device is installed on the door frame 5 in response to the latch of the lock 4 on the inside of the frame 5, while the guide screw 3 is rigidly fixed to the frame 5, for example by welding (plate 7 is welded to the frame, and the guide screw 3 is rigidly fixed by welding), bracket 1 and nut 2 remain movable. Moving the nut 2 moves the bracket 1, respectively, the bracket 1 moves relative to the frame 5, and the rectangular hole of the bracket moves relative to the frame along a horizontal axis perpendicular to the plane of the door leaf. The device is made in the form of a bracket 1 with a rectangular cross-section, with two coaxial holes in the center of each side of the bracket, through which a guide screw 3 passes; on the guide screw 3, between the sides of the bracket (inside the bracket), nut 2 is located, the nut is threaded to the guide screw and movable. Moving the nut 2 along the guide screw 3 along the thread moves the bracket 1 along the axis of the guide screw 3, the thread allows this to be done smoothly and to achieve the necessary accuracy of movement along the horizontal axis. In the center of the middle edge of the bracket, a rectangular hole is made for the bolt of the lock latch 4.

Thus, the device serves to control the gap between the bolts of the lock of the door leaf 6 and the frame 5 in the closed state. Regulation is carried out by moving the bracket 1 along the guide screw 3, which is driven by a nut 2, rotating clockwise or counterclockwise, depending on the direction of movement of the edge of the groove of the latch of the lock 4. After installing the door, the test opening of the blade is made. If the door in the closed position has easy movement in the horizontal direction, then by rotating the nut in the device, the backlash is adjusted, while the backlash control device does not move the lock, but moves the edge of the groove of the latch of the lock 4 on the frame 5.

The backlash control device is not removable, it is rigidly fixed to the door frame from the side of the wall (for example, by welding) and remains on the door frame for the entire service life, so that you can use it at any time, because play during the operation of the door may change (shrinkage of the house, drying of the seal or wear of the door parts). Guide screw 3, like the entire device, is located on the frame (in the frame).

The design of the proposed device, unlike the prototype, is simple and economical to manufacture, is simple and easy to use when adjusting the backlash of the metal door leaf.

Claims (1)

The device for controlling the backlash of the metal door leaf contains a bracket with a rectangular cross-section, with two coaxial holes in the center of each side of the bracket through which the guide screw passes; on the guide screw between the sides inside the bracket there is a nut in a threaded connection with at least two degrees of freedom, in the center of the middle edge of the bracket there is a hole for the bolt of the lock latch; the guide screw is rigidly fixed to the frame from the inside so that the hole in the middle edge of the bracket is opposite the latch of the metal door lock, the bracket together with the nut has at least two degrees of freedom, while the edge of the hole in the middle edge of the bracket is the edge of the lock latch groove on frame.

Images