RU116173U1 - MORTIC LOCK FOR DOORS - Google Patents

Abstract

1. Mortise door lock, the control mechanism of which consists of a clutch (3) with a rocker, under the action of the handle engages with the locking lever (8), which in turn engages with the control lever (9), removing the bolt (6) inside the lock, and when the handle is released, the bolt (6) returns to its original position under the action of the spring (4) of the clutch (3) and the coil spring (5) acting on the fixing lamella (7), from which the bolt (6) by acting on the rear the part can be removed to change the direction of the lock functioning, and the rear part of the crossbar (6) has an asymmetric shape, consists of a shank (6a) and an elastic element (13), which has a tooth (13a) at its free end, providing one of the holes (14 , 15) the possibility for the fixing lamella (7) of the axial grip of the crossbar (6). ! 2. Mortise lock according to claim 1, characterized in that the elastic element (13) of the bolt (6) can be rotated relative to the fixed rigid lamella (7) by 180 ° in order to change the direction of operation of the lock.

Description

The utility model relates to a mortise lock for opening and closing doors with a modular bolt.

Several types of door locks are widely known, most of which are distinguished by the complicated design of the working mechanism, with many special springs for a short period of operation and the use of additional physical efforts. For example, patent RO 45498 describes a prismatic crossbar sliding due to a pushing sleeve of a reinforced curved arm with parallel rods inserted into the crossbar. Patent RO 108589 describes a lock consisting of two upper plates, the rollers present between them are attached to the bolt rod moving to the right when the rollers take the top of the key, which is controlled by a button in the handle, in patent RO 113266 the lock consists of a fixed handle and a movable handle, which is compressed, at the same time manually rotate around a fixed lever bolt, removing the locking rod, and the springs return to their original position.

There are other known lock designs where the locking device consists of a latch, a latch lever, and a bolt; the bolt controlled by the latch handle is retracted into the lock and the door can be opened, and when the handle is released, the bolt returns to the locking position due to the action of the spring. A locking device consisting of a lamella and a latch; when turning the key, its protrusion extends the lamella and releases a latch that extends until the protrusion of the key leaves the area of contact with the lamellas; The spring of the bolt places the latch in the locked position in the first position. With a further turn of the key, the process is repeated, and the second stroke of the latch will be completed. To unlock, the key is turned in the opposite direction. The lock can be left / right, the direction is selected by clicking on the axis of the tongue and turning the tongue 180 °. In other designs, the lamella determines the location of the latch and the locking in the first position by the tongue spring, but in this version of the design, the lock is designed only for the left side.

Other well-known locking structures are intended only for internal doors and consist of a clutch, clutch lever, bolt and bolt lever; turning the clutch handle, the bolt retracts inside the lock and the door can be opened, and when the handle is released, the bolt returns to the closing position under the action of the spring. For this type of lock, the locking mechanism assumes the functions of a locking device for locking / unlocking the bolt in the position when the key is turned to lock and the protrusion of the key acts on the locking lever that locks the bolt, after which the bolt can no longer be unlocked by pressing the handle. After turning the key in the opposite direction, the bolt is unlocked and by turning the handle the door can be opened. The lock can be left / right, the direction is selected by clicking on the axis of the tongue and rotating the tongue around its axis by 180 °.

For closing - opening internal doors, locks are known consisting of a clutch, a bolt and a long lever; acting on the clutch with a handle, the bolt retracts inside the lock and the door can be opened, and when the handle is released, the bolt returns to the closing position under the action of the spring. The closing mechanism accepts the functions of the locking device also locking / unlocking the bolt in the position when the key is turned to lock and its protrusion acts on the locking lever, which locks the bolt and can no longer be unlocked by pressing the handle. But when the key is turned in the opposite direction, the bolt is unlocked and by turning the handle the door can be opened. The lock can be left / right, the direction is selected by clicking on the axis of the bolt and rotating the bolt around its axis by 180 °. Other types of locks consist of a clutch, a spring and a bolt; turning the clutch handle, the bolt retracts into the lock and the door can be opened, releasing the handle, the bolt returns to the closed position due to the retracting spring. The locking device consists of a lamella and a latch driven by a key, its protrusion pushes the lamella and releases the latch, which moves forward until the protrusion of the key leaves the contact area with the lamella; lamel blocks the latch by means of a lamella spring. To unlock, turn the key in the opposite direction. This design is designed for installation on the "right" doors.

All these types of lock mechanisms have drawbacks, because some can be used only in the “left” or “right” doors, while others provide universality of direction, they require a sufficiently high force on the bolt associated with its overturn, when the left / right direction needs to be changed . The locking structure of the mechanism includes too many metal components that require correlation between them both in terms of size and from the kinematic point of view, requiring high production costs to ensure a low noise level, since the mechanism in operation produces a lot of noise. The springs used in the mechanism are a weak point, because they "wear out", which affects the reliability of the lock.

EP 1703046 describes a mortise lock for doors consisting of a clutch, a clutch spring, a control lever for a gate valve, a locking lever, a fixed lamella, a modular bolt and corresponding holes for the elastic element of the bolt to change the transition to the right / left door.

The purpose of this utility model is to obtain a lock that provides both directions (right / left) of operation, which can be changed by easily turning the bolt, using as few components as possible, simple kinematics, which, while reducing costs, increases reliability and reduces noise during operation.

The lock eliminates the disadvantages of the above devices, its operating mechanism consists of the following components: a clutch with a beam, a clutch spring, a latch control lever, a locking lever, a locking lamella and a modular bolt with an elastic element. When turning the clutch handle, the rocker engages with the locking lever, which also engages with the control lever. When turning the control lever, the lock bolt enters the lock. When you release the handle, the bolt returns to its original position. When the key is rotated in the locking direction, the locking lever is set to a position in which the clutch rotates and cannot act on it, since the bolt will be locked. When the key is turned in the unlocking direction, the lock lever returns to its original position. During the second turn of the key in the same direction, the key assumes the function of a clutch, which activates the locking lever, which engages the control lever and the modular bolt enters the lock.

The direction (left / right) of the functioning of the lock is changed by inserting a screwdriver into one of the holes of the elastic element of the modular bolt, while turning or tilting it at an angle of more than 5 degrees, it is easy to release the modular bolt from the fixing lamella and remove it. The modular crossbar is rotated and fixed in the lamella of the castle, thereby receiving a change in the direction of the castle.

The utility model has the following advantages:

- simple design and low cost;

- high reliability and low noise level;

- simple implementation of the transition from the right / left direction. A brief description of the drawings.

- Figure 1, General view of the castle;

- Figure 2, Modular bolt with an elastic element;

- Figure 3, Fixing lamella;

- Figure 4, the Modular bolt assembly with a fixing lamella.

The lock consists of an operating mechanism made of a clutch 3 with a yoke, a clutch spring 4, a control lever 9 of the valve, a locking lever 8, a locking lamella 7 and a modular bolt 6 with an elastic element 13 with a tooth 13a mounted on the free end. When the coupling 3 is rotated by the handle, its rocker engages with the locking lever 8, which also engages the control lever 9. When the control lever 9 is rotated, the modular bolt 6 is retracted into the lock. When the handle is released, the modular bolt 6 returns to its original position under the action of the spring 4 of the coupling 3 and the coil spring 5 acting on the fixing lamel 7, from which the bolt 6, by acting on the back, can be removed to change the direction of functioning of the lock, while elastic the bolt element (13) (6) can be rotated relative to a fixed rigid lamella (7) by 180 °. When the key is turned in the locking direction, the locking lever 8 is installed in the position where the coupling 3 is turned and does not reach it, and the modular bolt 6 is locked. When you turn the key in the unlocking direction, the locking lever 8 returns to its original position. When the key is rotated a second time in the same direction, the key assumes the function of the coupling 3, acts on the locking lever 8 which engages with the control lever 9, and the bolt is retracted inward.

The direction of operation of the lock is changed by means of a screwdriver. The screwdriver is inserted into the holes 14 or 15 of the elastic element 13 of the modular crossbar 6, rotates or deviates an angle of more than 5 degrees, so that the back side of the crossbar 6, which has an asymmetric shape and consists of a shank 6a and an elastic element 13 with turned, on the free end of the prong 13a, is freed from the fixed lamella 7 and is removed. The modular crossbar 6 is rotated together with the elastic element (13) of the crossbar (6) through 180 ° relative to the fixed rigid lamella (7) and is inserted into the locking lamella 7 of the lock, changing the direction of functioning of the lock.

Claims (2)

1. Mortise door lock, the control mechanism of which consists of a clutch (3) with a beam, under the action of the handle engages with the locking lever (8), which in turn is engaged with the control lever (9), removing the bolt (6) inside the lock, and when the handle is released, the bolt (6) returns to its original position under the action of the spring (4) of the clutch (3) and the coil spring (5) acting on the locking lamella (7), from which the bolt (6) by acting on the rear part can be removed to change the direction of the castle, and the rear The main part of the crossbar (6) has an asymmetric shape, consists of a shank (6a) and an elastic element (13) having a tooth (13a) at the free end, which provides with one of the holes (14, 15) the axial position for the fixing lamella (7) capture of a crossbar (6). 2. Mortise lock according to claim 1, characterized in that the elastic element (13) of the crossbar (6) can be rotated relative to a fixed rigid lamella (7) by 180 ° to change the direction of operation of the lock.