KR101404510B1 - Push and pull type door lock - Google Patents

Abstract

Provided in the present invention is a door lock having a simple structure for easy assembly, for easy production, for reducing production costs, for securing smooth operation, and for diversifying design variations and having compatibility with a conventional latch assembly. The push and pull type door lock comprises a driving unit which is joined to a lever shaft protruded from both sides of the conventional latch assembly comprising a door lock, rotates the lever shaft in a clockwise or counterclockwise direction by pushing or pulling the lever to make a latch bolt enter a latch housing, and moves the latch bolt away from a latch bolt hole formed on a latch plate fixed to a door frame so that a door can be opened. The driving unit comprises a gear bracket, of which the inner side is joined to the lever shaft, and which is connected to a lever core exposed to the outside of the finish plate, to be able to rotate without being displaced toward the center of an axis; a driving bevel gear fixed to an end of the lever core exposed to the outside of the gear bracket; a drive shaft installed at an outer side of the gear bracket in a direction perpendicular to the axis center of the lever shaft, and connected to the lever; and a drive bevel gear fixed to the drive shaft to make the driving bevel gear be rotated in a clockwise direction or counterclockwise direction by engaging with the driving bevel gear as the drive shaft rotates in a clockwise direction or counterclockwise direction due to the pushing and pulling of the lever.

Description

Push & pull type door lock {PUSH AND PULL TYPE DOOR LOCK}

The present invention relates to a push-and-pull type door lock, and more particularly, to a push-pull type door lock capable of opening a door by releasing a latch assembly constituting a door lock by pushing or pulling the door lever, Pull type door lock which is improved to be able to be opened and used.

Generally, a door which is coupled to a door frame installed at an entrance for connecting a space and a space separating an entrance of a building or an interior of a building is installed in such a manner that the door can be opened and closed by continuing the engagement with the door frame.

The door lock includes a latch assembly installed in the middle of the door and configured to allow the latch bolt to be taken in and out of the door frame direction, a cover fixed to both sides of the door and connected to the latch assembly, To the door frame direction.

The door lock of the lever type as described above allows the user to push and pull the ratchet bolt into and out of the latch housing constituting the latch assembly by holding the knob and rotating forward and backward in the direction perpendicular to the axis of the latch bolt, So that the door can be opened and closed.

In such a door type of the lever type, since the user must always hold the lever (the handle) by hand, if the user can not hold the lever and hold the lever in the user's hand, the door can not be opened or closed, do.

In order to solve this problem, a door lock has been developed which is connected to a latch assembly which is inserted into a near-by latch so that a lever which pushes and pulls a latch bolt can be pushed and pulled in and out of a latch bolt to open and close the door It is a fact that it is used.

A representative example of such a push-and-pull type door lock is disclosed in Japanese Patent No. 1306888, and the construction thereof will be described with reference to the specification and claims.

There is provided a mortise lock 2 including a dead bolt 2a and a latch bolt 2b inside a door 1 where a circular hole 1a for installing a door handle is basically pierced in the door 1,

The inner and outer sides of the door (1) with the circular hole (1a) as a center line are vertically symmetrical with respect to the dead bolt (2a) so as to disperse the external force when an external abnormal external force is applied, And an in-body door lock (A) and an out-body door lock (B) for locking or unlocking the latch bolt (2b) and the latch bolt (2b).

The door lock A constituting the push-pull type door lock includes a first main body 20, a power knob 31, a first rotation bar 35, a first installation supporter 10, a rack gear 33 A first driving part 30 including a supporting frame 34 and a pinion gear 32 and a second driving part 40 including a first moving body 41 and a first elastic body 43. The first driving part 30 includes a first driving part 30,

The outer door handle B includes an eleventh installation supporter 110 having an eleventh rotation bar 111 and an eleventh main body 120. The eleventh moving body 132 and the eleventh resilient portion 134 The eleventh driving unit 130 and the coupling rods 112. [

Patent No. 10 - 0873402 - 0000 Patent No. 10 - 1115258 - 0000 Patent No. 10 - 1306888 - 0000 Patent No. 10 - 1306889 - 0000 Patent No. 10 - 1320590 - 0000

The push-pull type door lock to which the above-described conventional technique is applied includes a form in which a user holds and pulls the first body and the eleventh body by using his / her hand, or a case in which a part of the body is pushed in a locked state It is possible to achieve the object that the door can be opened and opened easily, but the following problems arise.

The structure for operating the latch bolt by receiving the force of the main body 1, 11 is complicated, and the number of components is large, so that the production is not easy. Besides, since there are many small-sized parts, And in this case, defects such as failure to smoothly operate in the state of being mounted on the door frequently occur.

Due to the large number of related components, it is not easy to install on actual doors as well as weak external competitiveness due to an increase in production cost, and it takes a lot of time and cost to install.

Since the number of components is large as described above and it is not compatible with the lever type door lock latch assembly that rotates the existing lever to operate the latch bolt, when the conventional door lock is applied to a door equipped with a conventional door lock, There is a problem that unnecessary resources are wasted or discarded because a new door lock must be installed.

Due to the large number of component parts, it is necessary to precisely establish the connection relationship or the fixed relationship between the parts to ensure smooth operation. Also, due to the weakness of the connection and fixing parts, Which is expensive and time consuming.

In addition, since the number of components is large and complex, design variability is so weak that the lever, which is exposed to the outside of the door, has a limited shape, so that it is difficult to obtain a variety of shapes and shapes according to the type of door There is a problem that the practical application is not activated.

In order to solve the above-mentioned problems, the present invention has been developed to solve the above-mentioned problems, and it is an object of the present invention to provide a door lock device, which is combined with a lever shaft protruding from both sides of a known latch assembly constituting a door lock, And a driving unit for allowing the bolt to enter the latch housing to allow the door to be opened beyond the latch bolt hole formed in the latch plate fixed to the door frame, wherein the push-pull type door lock includes:

The driving unit includes a gear bracket coupled to the lever shaft and an inner side and coupled to the lever core exposed to the outside of the finishing plate so as not to flow in a direction of the center of the shaft and fixed to the end of the lever core exposed to the outside of the gear bracket A driving bevel gear provided at an outer side of the gear bracket and installed in a direction perpendicular to the center of the shaft of the lever shaft and connected to the lever, and a driven bevel gear engaged with the driven bevel gear while rotating forward and backward by pushing the lever A movable bevel gear fixed to the driving shaft to rotate and reverse the bevel gear;

It is possible to provide the easiness of production and assembly with a simple structure, to reduce the production cost, to ensure smooth operation, to widen the design variability, and to be equipped with the door lock of the related art by the features compatible with the known latch assembly It is possible to achieve the purpose applicable to the door.

The present invention can easily produce and assemble a latch bolt by pushing and pulling a latch lever of a lever-type door lock to which the conventional technology is applied, thereby increasing the durability and reducing the production cost. The maintenance cost and time can be greatly reduced.

It is compatible with the conventional lever type door lock latch assembly. Therefore, it is possible to reduce the cost and the installation time even when changing from the lever type door lock to the push and pull type as well as the new installation, and the damage of the door can be excluded.

Since the drive portion for operating the lever type latch assembly is accommodated in the lever and is not exposed, and the design of the lever is wide, the overall appearance and aesthetics in the installed state can be enhanced.

1 is a simplified exploded perspective view showing a push-and-pull type door lock to which the technique of the present invention is applied;
FIG. 2 is a perspective view illustrating a driving part of a push-pull type door lock to which the technique of the present invention is applied. FIG.
3 is a sectional view showing a driving unit of a push-and-pull type door lock to which the technique of the present invention is applied;
FIG. 4 is a view showing a state in which a driving portion and a lever of a push-pull type door lock to which the technique of the present invention is applied are combined. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a simplified exploded perspective view showing a push-and-pull type door lock to which the technique of the present invention is applied, FIG. 2 is a perspective view illustrating a driving part of a push-pull type door lock to which the technique of the present invention is applied, FIG. 4 is a block diagram illustrating a driving unit and a lever of a push-pull type door lock to which the technique of the present invention is applied, together with the driving unit of the push-pull type door lock.

The push-pull type door lock 100 to which the technique of the present invention is applied is a lever shaft 101 projecting to both sides of the latch assembly 101 while applying the latch assembly 101 constituting the lever- The lever shaft 102 is rotated in the forward and reverse directions by the push or pull of the lever so that the latch bolt 103 constituting the latch assembly 101 is inserted into the latch housing 104 and fixed to the door frame So that the door can be opened by leaving the latch bolt hole 107 formed in the latch plate 106 which is formed by the latch plate 106.

The latch assembly 101 of the prior art lever type door lock described in the technique of the present invention includes a lever shaft 102 passing through a latch housing 104 having a latch bolt 103 at its tip end, And a restricting plate 110 to return the lever shaft 102 to its original position is formed by a lever core 112 coupled to an inner end of the lever shaft 102, And a finishing plate 113 which is fixedly attached to both surfaces of the door 108 while keeping the door 108. The detailed description will be omitted.

The lever 114 is pushed and pushed between the lever core 112 and the lever 114 constituting the latch assembly 101 while applying the conventional latch assembly 101 as it is, And the drive unit 115 that receives the force of the pull (pull) from the lever core 112 and rotates the lever shaft 102 to allow the latch bolt 103 to enter and exit.

The driving unit 115 is capable of being rotated relative to the finishing plate 113 by the returning means 111 in the finishing plate 113 and moving away from the shaft center (X axis) direction of the lever shaft 102 And the gear bracket 116 is rotatably coupled to the lever core 112 exposed to the outside of the finishing plate 113. [

The gear bracket 116 is vertically held in the X-axis direction on both sides of the horizontal retention plate 117 and the horizontal retention plate 117 provided in a direction (Y-axis) perpendicular to the axial center direction of the lever shaft 102 And the plate 118 is protruded to form a rough shape.

A core hole 119 is formed at the center of the horizontal holding plate 117 so that the lever core 112 can be engaged to rotate and the gear bracket 116 can be moved in the X- I will arrest him.

The driving bevel gear 120 is fixed to the end of the lever core 112 exposed to the outside of the horizontal holding plate 117 and the driving bevel gear 120 is fixed to the outer side of the vertical holding plate 118 in the lateral direction So as to engage with the driven bevel gear 122 fixed to the driving shaft 121 to be connected.

In the present invention, the driving bevel gear 120 and the movable bevel gear 122 are exemplified. However, the present invention is not limited to the bevel gear because it can be applied to gears that can change the direction to 90 degrees, such as a helical gear.

Although the drive bevel gear 120 and the movable bevel gear 122 may be configured to form gear teeth over the entire concentric circle, the angle required to substantially open the door 108 is not limited to that of the movable bevel gear 122 Is about 20 to 30 degrees and the driving bevel gear 120 is about 40 to 60 degrees, it may be formed in a fan shape to form gear teeth only in a portion where actual power is transmitted.

The gear bracket 116 is inserted into a driving space 123 formed in the lever 114 so as not to be exposed to the outside and both sides of the driving shaft 121 are connected to a bounding rib 124 And Bound Rib to rotate the movable bevel gear 122 in forward and reverse directions by the push and pull operation of the lever 114 and to rotate the driven bevel gear 120 in the forward and reverse directions, The latch bolt 103 is exposed to the inside of the latch housing 104 so that the door 108 can be opened.

An operation state of the push-pull type door lock 100 to which the technique of the present invention is applied will be described as follows.

The well-known latch assembly 101 is mounted on the door 108 and the latch bolt 103 protruding from the front end of the latch housing 104 is inserted into the latch bolt hole 106 formed in the latch plate 106 fixed to the door frame 105 So that the door 108 is kept closed.

In this state, when the user desires to open the door 108, the user grasps or pushes the lever 114 using his / her hand, or when the user can not use the hand because there is something in the user's hand, The latch bolt 103 can be moved out of the latch bolt hole 107 by pushing the lever 114.

Specifically, when the lever 114 is pushed, the driving shaft 121, which connects the gear bracket 116 and the connecting ribs 124 of the driving space 123 to the shaft center (Y axis) of the driving shaft 121, And the driven bevel gear 120 engaged with the driven bevel gear 122 is rotated in the clockwise direction with respect to the axis of the lever shaft 102 In the counterclockwise direction.

When the lever 114 is pulled, the driving shaft 121 connecting the gear bracket 116 and the connecting ribs 124 of the driving space 123 is rotated counterclockwise about the axis of the driving shaft 121 So that the driving bevel gear 120 engaged with the primary bevel gear 122 rotates clockwise with respect to the axis of the lever shaft 102. As a result,

Therefore, the lever core 112 that fixes the drive bevel gear 120 rotates counterclockwise or clockwise to move the lever shaft 102. By the movement of the lever shaft 102, The latch bolt 103 exposed at the front end of the latch housing 104 enters the latch housing 104 and is released from the latch bolt hole 107 of the latch plate 106. Accordingly, Can be achieved.

The operation of engaging the latch bolt 103 with the latch bolt hole 107 while the opened door 108 is closed to continuously maintain the closed state of the door 108 and the operation of pushing and pulling the lever 114 The process of returning the lever 114 to the initial position after stopping is the same as the operation of the latch assembly 101 and the returning means 111 constituting the general door lock, as described above, and thus a detailed description thereof will be omitted.

The present invention as described above can provide ease of production and assembly since the driving unit for performing the operation of rotating the lever shaft through the lever core by pushing or pulling the lever is simple, It can be easily applied to existing doors, and the cost and time required for installation and maintenance can be greatly reduced.

Particularly, since only a space for accommodating the driving portion can be formed in the case of the lever, various design variability can be provided, so door locks of various shapes and shapes can be provided, thereby enhancing the external competitiveness and widening the choice of users And the like.

100; A push-and-pull type door lock 101; Latch assembly
102; Lever shaft 103; Latch bolt
104; Latch housing 111; Return means
112; Lever core 113; Finishing plate
114; Lever 115; The driving unit
116; Gear bracket 120; Driven bevel gear
122; Original bevel gear 123; Driving space
124; Bound rib

Claims (3)

The latch shaft is engaged with a lever shaft protruding to both sides of a known latch assembly constituting a door lock, and the lever shaft is rotated forward and backward by the push or pull of the lever to enter the latch housing to be formed in the latch plate fixed to the door frame And a driving unit for releasing the door from the latch bolt hole, wherein the door is opened;
The driving unit includes a gear bracket coupled to the lever shaft and coupled to the lever core and rotatably coupled to the lever core exposed to the outside of the finishing plate which is fixedly attached to both sides of the door while holding the latch housing,
A drive bevel gear fixed to an end of a lever core exposed to the outside of the gear bracket;
A driving shaft provided at an outer side of the gear bracket in a direction perpendicular to a shaft center of the lever shaft and connected to the lever;
And a movable bevel gear fixed to the driving shaft so as to rotate forward and reverse the driven bevel gear while engaging with the driven bevel gear while rotating forward and backward by pushing and pulling of the lever. The method of claim 1, further comprising:
The gear bracket is inserted into a driving space formed in the lever so that the gear bracket is not exposed to the outside. Both sides of the driving shaft engage with a bounding rib forming a driving space, and the movable bevel gear is fixed by the push- And the door is rotated in a reverse direction. The method of claim 1, further comprising:
Wherein the gear bracket comprises a horizontal holding plate provided in the Y axis direction with respect to the axial center direction of the lever shaft and a vertical holding plate protruding in the X axis direction from both sides of the horizontal holding plate. Door lock.

Images