KR100543863B1 - Backset of door lock device - Google Patents

Abstract

In the backset of the door lock device according to the present invention, a dead bolt, a dead lever, a latch bolt, an automatic lock device, a latch lever, a drive motor, and a latch lever interlocking means are configured in the back lock of the door lock device. Is coupled to the upper end of the arm of the dead lever, the rotating latch to form a rake on the end of the "L" shaped body; A moving latch having one end axially coupled to an end of the latch holder reciprocated left and right at the bottom of the rotary clasp; One end is fixed to the inner wall of the case to always support the lower end of the movable latch, and when the latch bolt interlocked with the movable latch is inserted into the case alone or protrudes without interlocking with the latch lever, the rake portion of the movable latch A leaf spring configured to be in a state parallel to the insertion direction or in a state perpendicular to the protruding direction to release the fixed state in the case of the dead bolt by activating the rake portion of the rotary clasp coupled with the dead reverb. Characterized in that made.

The present invention by simplifying the configuration for performing the dead bolt automatic locking function of the backset of the door lock device, it is possible to reduce the unit cost, and to reduce the manufacturing process to increase the productivity of the product and at the same time have the effect of reducing the manufacturing cost There is.

Description

Backset used for door lock}

1 is a plan view showing the internal configuration of the backset of the door lock device according to the prior art.

Figure 2 is an exploded perspective view showing a lever structure for interlocking the dead bolt and latch bolt of the prior art.

Figure 3 is an exploded perspective view showing the operation structure of the conventional automatic lock button.

Figure 4 is a perspective view of a backset of the door lock device according to an embodiment of the present invention.

5 is an exploded perspective view showing the main portion of FIG.

6 is a plan view of the back set of the door lock device according to an embodiment of the present invention.

7a to 7d are plan views illustrating sequentially the opening process of the door lock device according to the embodiment of the present invention.

8A to 8D are plan views sequentially explaining the operation of the automatic locking device according to the embodiment of the present invention.

9A to 9C are conceptual views for explaining the operation relationship between the moving latch and the leaf spring according to the present invention.

Explanation of symbols on the main parts of the drawings

1: case 10: latch lever

11: ring 12: cam

12a: Latch lever arm 20: Motor

40: dead bolt 41: first spring

43: spring holder 50: dead reverb

51: through hole 53: dead reverb arm

60: latch bolt 61: latch holder

63: second spring 70: automatic locking device

71: rotary latch 71a: rotary latch extractor

73: shifting latch 73a: shifting latch extractor

73b: fixed shaft 73c: curved portion

75: leaf spring

The present invention relates to a backset of a door lock device.

In general, the door lock device is a security device that is mounted on the door to secure the door to the door frame or release the state fixed to the door frame according to the user's operation, the inner case is largely installed on the indoor side, the outer case installed on the outdoor side and It consists of a backset (backset) is installed between the inner case and the outer case.

1 is a plan view showing the internal configuration of the back set of the door lock device according to the prior art, Figure 2 is an exploded perspective view showing the operation structure of the conventional automatic lock button.

As shown in the figure, the case 1 is provided with a dead bolt (2), an automatic lock button (3) and a latch bolt (4) in order to protrude to the outside.

The dead bolt (2) is for the locking function of the door, the latch bolt (4) is for keeping the door closed, the automatic lock button (3) to lock the dead bolt (2) to lock the door It is for.

Figure 2 is an exploded perspective view showing a lever structure for interlocking the dead bolt and the latch bolt of the prior art, as shown in the figure the user manipulates the inner ring or the outer handle ring (7) of the latch lever linked thereto When rotated, the cam 8 having the linkage structure is rotated by the ring 7 and the cam plate (a kind of key role) 9.

At this time, the arm 8a extending at one end of the cam 8 is rotated in the clockwise direction, and the arm 8a is configured such that the arm 8b of the dead reaver is positioned at the radius of rotation, so that the dead reverberator is rotated. Pushing the arm (8b) of the dead bolt (2) interlocked with it is inserted into the inner side of the backset to separate the door from the door frame.

At this time, the latch bolt 4 is also interlocked with the arm 8a of the cam 8 and inserted into the backset.

Such a backset is a state in which the dead bolt 2 is fixed to the groove of the door frame continuously when it does not satisfy the conditions (password input, key input, etc.) set for the purpose as a security device (hereinafter referred to as 'locked state'). A function of maintaining the " unlocked state ", and a function of preventing the dead bolt 2 from being fixed in the groove of the door frame when the set condition is satisfied (hereinafter referred to as 'unlock state'), Open the door and enter the house to close the door at the same time the dead bolt (2) is to perform an automatic lock function to automatically lock to the groove of the door frame.

3 is an exploded perspective view illustrating an operation structure of a conventional automatic lock button. Referring to the drawings, the automatic locking function will be described. First, the door in the unlocked state, that is, the dead bolt 2 is provided with a case (1). When the door is closed and the door is closed with the auto lock button 3 and the latch bolt 4 protruding out of the case 1, the auto lock button 3 and the latch bolt 4 are simultaneously pressed to the door frame. After entering the state, the automatic lock button (3) is continuously maintained in the state pressed on the door frame, the latch bolt (4) is fitted into the groove formed in the door frame, returning the automatic release plate (5) associated with it Let's go.

At this time, the automatic release plate (5) is in contact with the side wall of the automatic lock button (3) in the process of returning to return to the state in which the right angle surface protrudes forward, the right angle surface latch bolt (4) By the restoring force of the ()) to hit the lower end (6a) of the deadlock plate (6) to rotate. As a result, the other end 6b of the deadlock plate 6 fixed to the shaft is separated from the engaging groove 2a formed in the bottom of the dead bolt 2, and the dead bolt 2 is returned to the locked state.

However, the prior art as described above has a problem in that a configuration for maintaining the unlocked state of the dead bolt 2 or for operating the automatic locking function is complicated.

That is, in order to maintain the unlocked state of the dead bolt 2, a configuration of the deadlock plate 6 and the spring 6c for providing tension to the deadlock plate 6 is required, and further, the dead bolt For the automatic locking function of (2), the deadlock plate 6 is interlocked with the automatic lock button 3, a spring 3a providing tension to return the automatic lock button 3, and the latch bolt 4; It is necessary to configure the auto release plate (5) to be driven.

In addition, according to the related art, the frequent use of the latch bolt 4 and the automatic lock button 3 reduces the restoring force of the springs 3a and 6c, and interlocks with the latch bolt 4 by the friction force between the components. The self-release plate 5 may not have enough restoring force to drive the deadlock plate 6, so that the dead bolt auto-locking function often does not work.

An object of the present invention for solving the above problems, while simplifying the configuration for performing the dead bolt automatic locking function of the backset of the door lock device, while providing a backset of the door lock device to structurally solve the problem of malfunction of the device There is this.

The backset of the door lock device according to the present invention for achieving the above object is in the backset of the door lock device such that a dead bolt, a dead bolt, a latch bolt, an automatic lock device, a latch lever, a drive motor, a latch lever interlocking means are configured in the case. The automatic locking device may include: a rotary latch coupled to an upper end of an arm of a dead lever and configured to form a rake at an end of an L-shaped body; A moving latch having one end axially coupled to an end of the latch holder reciprocated left and right at the bottom of the rotary clasp; One end is fixed to the inner wall of the case to always support the lower end of the movable latch, and when the latch bolt interlocked with the movable latch is inserted into the case alone or protrudes without interlocking with the latch lever, the rake portion of the movable latch A leaf spring configured to be in a state parallel to the insertion direction or in a state perpendicular to the protruding direction to release the fixed state in the case of the dead bolt by activating the rake portion of the rotary clasp coupled with the dead reverb. Characterized in that made.

Here, the movable clasp is formed with a rake portion extending one end about a fixed shaft, and is formed on the other end opposite the rake portion formed to form a curved portion to match the inner surface of the arm of the latch lever.

Here, the lower end of the fixed shaft, the plate spring and the ground plane of the movable latch at the maximum insertion point of the latch bolt is characterized in that it is formed as a bending surface that is bent in the axial direction.

Here, the rake direction of the rotary clasp toward the bottom, characterized in that the rake direction of the movable clasp is formed to face the top.

Here, in order to prevent the arm tip of the latch lever interlocked with the arm of the dead lever to collide with the rotary latch, the end of the latch lever may be thinly formed to form a step.

Here, one end of the leaf spring is fixedly coupled to the inner wall of the case, and formed at least one bend to the end of the ground portion with the moving clasp, characterized in that the ground end is formed in a round curved surface.

Here, one end is fixed to the inner wall of the case of the leaf spring is characterized in that it is installed to be located below any horizontal extension line from the fixed shaft of the moving latch.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.

Figure 4 is a perspective view of a backset of the door lock device according to an embodiment of the present invention, Figure 5 is an exploded perspective view showing the main portion of Figure 4, Figure 6 is a plan view of a backset of the door lock device according to an embodiment of the present invention.

As shown in the figure, the backset of the door lock device according to the present invention has a dead bolt 40, a dead lever 50, a latch bolt 60, an automatic lock device 70, a latch lever 10, The drive motor 20, the latch lever interlocking means (not shown).

The dead bolt 40 is provided with a first spring 41 for restoring the protrusion, and a dead bolt spring holder 43 connected to the first spring 41 and fixed to the base of the backset is installed. The movement of the dead bolts 40 is determined by the dead retarder 50.

The through hole 51 formed in the dead retarder 50 has a shaft (not shown) connecting the summton (installed in the inner case) and the emergency key (installed in the outer case) to penetrate the arm. Turn 53) counterclockwise.

The arm 53 is installed to the dead bolt 40 side, and when rotated counterclockwise, the arm 53 is in contact with the groove 45 and the projection 47 of the dead bolt 40 formed on the inner end, dead bolt 40 Move to the inside of the backset.

The upper end of the arm 53 is coupled to the rotary latch 71 which is one component of the automatic locking device 70 of the present invention. At this time, the rotary clasp 71 forms a rake 71a at the end of the body having an approximately "L" shape.

In addition, the latch bolt 60 is fastened to the latch holder 61, the end of the latch holder 61 is coupled to the movement latch 73 for constituting the automatic locking device 70.

The clasp 73 forms a rake portion 73a having one end extended to the fixed shaft 73b and the arm 12a of the latch lever 10 on the other end opposite to the rake portion 73a. The curved portion 73c is formed to coincide with the inner curved surface.

The inner surface of the right side of the arm 12a of the latch lever 10 which pivots with the left outer surface of the movable clasp 73 is interlocked with the latch lever 10.

At this time, the movable clasp 73 is surface pressure-supported by the leaf spring 75 whose bottom surface is fixed from the inner wall of the case.

In addition, one end of the leaf spring 75 is fixedly coupled to the inner wall of the case 1, and forms at least one bent portion to the end of the ground portion with the moving clasp 73, the end of the ground portion is formed in a round curved surface.

When the shifting clasp 73 is moved inward or outward of the case 1 in conjunction with the arm 12a of the latch lever 10, no change in angle about the axis 73b occurs.

The latch holder 61 is provided with a second spring 63 to allow the latch bolt 60 to protrude and restore to the outside of the backset.

The latch lever 10 has a ring 11 forming a through hole h1 to which the inner handle and the outer handle installed in the inner case and the outer case are coupled, and a cam extrapolated so that the ring 11 is interlocked as the ring 11 is rotated. It consists of (12).

At this time, the cam 12 is formed with an arm 12a for interlocking the dead retarder 50 on one side. The ring 11 and the cam 12 have a structure in which the rotational force is interlocked or separated by controlling a separate connection member.

The drive motor 20 is operated according to a user input signal to control a connection member for interlocking or separating the ring 11 and the cam 12 of the latch lever 10.

A separate latch lever interlocking means (not shown) is used to control the connecting member of the latch lever 10 disposed away from the proper distance by using the rotational force of the motor 20.

7A to 7D are plan views illustrating sequentially the OPEN process of the door lock device according to an exemplary embodiment of the present invention.

First, as shown in Figs. 7A to 7B, the user inputs a password to release the lock state and opens the door by a handle operation. At this time, the latch lever 10 is rotated in the clockwise direction by the handle operation, and the arm 12a formed therein rotates the arm 53 of the dead lever 50 in the counterclockwise direction.

At this time, in order to prevent the collision with the rotary clasp 71 coupled to the upper side of the arm 53 of the dead lever 50, the thickness of the front end of the latch lever 10 is formed to be thin end.

The arm 53 of the dead lever 50, which is interlocked with the arm 12a of the latch lever 10, is rotated by the groove 45 formed at one side of the dead bolt 40 to be dead bolt 40. Is inserted into the case, and as shown in FIG. 7C, the tip of the arm 53 is formed at the dead bolt 40 at the point where the dead bolt 40 is completely inserted into the case 1. Opposed so as to fix the dead bolt 40 protruding out of the case.

Subsequently, when the rotation force applied to the handle, that is, the latch lever 10 is recovered, the latch bolt 60 and the latch holder 61 are returned by the elastic force of the second spring 63 as shown in FIG. 7D. At this time, the latch lever 10 arm 12a is rotated in conjunction with the movement latch 73 coupled to one end of the latch holder 61.

7A to 7D, the door is opened by separating the door from the door frame through the process as shown in FIG. 7A to 7D. At this time, if the user does not turn the latch lever 10 within a set time after inputting a password, the CPU operates the driving motor ( 20 is driven to release the connection structure between the ring 11 of the latch lever 10 and the cam 12, and the latch lever 10 is in an inoperable locked state.

8A to 8D are plan views sequentially illustrating the operation of the automatic locking device according to the embodiment of the present invention.

First, when the user closes an open door (ie, a door in which the dead bolt is locked) and enters the room, the latch bolt 60 contacts the door frame and enters the case 1 as shown in FIG. 5A. Is inserted.

Thereafter, as shown in FIG. 8B, the latch lever 10 and the arm 12a are not driven, and the latch holder 61 and the moving latch 73 coupled to one end of the latch holder 61 are interlocked to each other. (1) Move inside.

In addition, the latch bolt 60 is completely inserted into the case 1, and the bottom of the movable clasp 73 is grounded parallel to the upper surface of the leaf spring 75.

That is, the rake portion 73a extending to one side of the movable clasp 73 is laid in the inserting direction, and the insertion proceeds. This phenomenon is caused by the plate spring 75 which supports the bottom surface of the movable clasp 73 under pressure. Can be described as a relationship.

Hereinafter, the operation relationship between the moving clasp 73 and the leaf spring 75 will be described in more detail through the conceptual diagrams of FIGS. 9A to 9C.

9A to 9C are conceptual views for explaining the operation relationship between the moving clasp and the leaf spring according to the present invention, the movement forming the rake portion 73a extending on one end of the cylindrical body fixed to the fixed shaft 73b. Assume the clasp 73, and assumes a leaf spring 75 is moved in pressure-supported bottom of the cylindrical body of the movable clasp 73.

First, as shown in FIG. 9B, when the leaf spring 75 is moved in the left direction, the movement clasp 73 which is rubbed with the surface thereof is rotated clockwise about the fixed shaft 73b so that the rake portion 73a is rotated by the leaf spring. You can see lying flat with (75). In addition, as shown in FIG. 9C, when the leaf spring 75 is moved to the right direction, the movement latch 73 is rotated counterclockwise to stand vertically with the leaf spring 75.

FIG. 9C illustrates a situation in which the latch bolt 60 is inserted into the groove formed in the center of the door frame while being pushed by the door frame.

At this time, the surface friction force in the direction opposite to the traveling direction of the latch bolt 60 returned by the second spring 63 is generated between the leaf spring 75 and the moving clasp 73.

That is, the surface frictional force direction with the leaf spring 75 proceeds to the right at the lower end of the shaft center of the moving clasp 73, and accordingly, the clasp 73a is appropriate while the moving clasp 73 rotates counterclockwise. In conjunction with the latch holder 61 in an upright angle, it proceeds to the left in the drawing.

At this time, the raised rake portion of the movable clasp 73 hits the rake portion 71a of the rotary clasp 71 coupled with the dead retarder 50 during the progress, as shown in Figure 9d and the rotary clasp 71 By rotating the combined deadlocker 50, the dead bolt 40 is released.

As a result, the projecting is protruded out of the case of the dead bolt 40, which has been limited by the arm 53 of the dead retarder 50, and is inserted into the door frame groove to maintain the locked state.

Although not shown in the drawing, the backset of the door lock device according to the present invention operates the emergency key or the summon to directly rotate the dead retarder 50 to release the dead bolt 40 from being locked.

When the user inserts the emergency key into the shaft connected to the through hole 51 of the dead retarder 50 or turns the summton, the dead revolver 100 rotates counterclockwise, and thus the dead bolt 40 Is inserted into the backset.

At this time, when the dead bolt 40 is completely inserted, the ring 11 and the cam 12 of the latch lever 10 is interlocked by the mechanical or electronic control in the state capable of simultaneous rotation.

In the above state, as shown in FIGS. 7A to 7D, the user may open the door by turning the inner handle or the outer handle. Then, the automatic locking function using the automatic locking device 70 according to the present invention is as shown in Figures 8a to 8d.

Through the technical contents of the present invention having the above configuration, those skilled in the art can recognize that various changes and modifications can be made without departing from the technical spirit of the present invention.

The present invention, by simplifying the configuration for performing the dead bolt automatic locking function of the backset of the door lock device, it is possible to reduce the cost of parts, it is possible to reduce the manufacturing process to increase the productivity of the product and at the same time competitive competitiveness It has an effect. In addition, since the problem of the malfunction of the device can be solved in the structural aspect, it is possible to reduce the cost of maintenance, and to improve the reliability of the product.

Claims (5)

In the backset of the door lock device in which a dead bolt, a dead lever, a latch bolt, an automatic lock device, a latch lever, a drive motor, a latch lever interlocking means are configured in the case, The automatic locking device is coupled to the upper end of the arm of the dead lever, the rotating latch to form a rake on the end of the "L" shaped body; A moving latch having one end axially coupled to an end of the latch holder reciprocated left and right at the bottom of the rotary clasp; As a configuration comprising a leaf spring, one end of which is fixed to the inner wall of the case to always support the lower end of the moving latch,  When the latch bolts interlocked with the movable latches are inserted into the case alone without interlocking with the latch levers, the rake portions of the movable latches disposed on the leaf springs are parallel to the insertion direction. When the inserted latch bolt is protruded, the rake portion of the movable latch disposed on the leaf spring is perpendicular to the protruding direction, so that the latch bolt contacts the rake portion of the rotary latch, and the latch bolt protrudes. As the retractor in the direction to be retracted, the rake portion of the rotary latch rotates the rake portion of the rotary clasp, the door lock device, characterized in that to release the fixed state in the case of the dead bolt as the rake portion of the rotary latch Backset. The method of claim 1, The moving latch has a rake portion extending from one end of the fixed shaft around the fixed shaft, the back set of the door lock device, characterized in that to form a curved portion to match the inner surface of the arm of the latch lever on the other end formed with the rake portion. The method of claim 2, The back lock of the door lock device, characterized in that the lower end of the fixed shaft, the plate spring and the ground plane of the latch at the maximum insertion point of the latch bolt formed in the bending surface axially bent. The method of claim 1, The back lock of the door lock device, characterized in that the end of the latch lever interlocked with the arm of the dead lever to form a step by processing the thickness of the front end of the latch lever to prevent the collision with the rotation latch. The method of claim 1, One end of the leaf spring is fixedly coupled to the inner wall of the case, and at least one bent portion to the end of the ground portion with the moving clasp, the ground portion end of the door lock device, characterized in that formed in a round curved surface.

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