KR102374682B1 - Door lock drive module assembly with on-off detection function - Google Patents

Abstract

Disclosed is a drive module assembly for a door lock having an on/off detection function capable of precisely detecting the rotational position of a drive cam member through a single sensor. The present invention relates to a drive module assembly for a door lock that connects or short-circuits a first shaft and a second shaft with a pin member by rotating a driving cam member within the casing, wherein the inside of the casing part is sensed to be pivotable about the pivot shaft. A lever is installed, and a connection end in close contact with at least one flat surface formed on a part of the driving cam member is formed at one end of the sensing lever with respect to the pivot axis, and the other end of the sensing lever is located close to the sensing sensor a sensing end is formed, and when the driving cam member is rotated, the sensing lever is rotated in one direction, and the sensing sensor detects the movement of the sensing end to detect a connection and short circuit state of the pin member, and the driving cam The member is characterized in that the cam surface is formed on the inner periphery, the gear part is formed on the outer periphery, at least one of the front and rear surfaces is formed with a rotating perimeter, and at least one inflection region is formed on a part of the rotating periphery.

Description

Door lock drive module assembly with on-off detection function

The present invention relates to a drive module assembly for a door lock, and more particularly, to a drive module assembly for a door lock having an on/off detection function.

In general, a lever-type door lock is installed on a door such as a room or a bathroom. In such a lever-type door lock, when either the indoor lever or the outdoor lever is rotated, the latch bolt of the door lock enters from the strike installed on the door frame to open the door or set the lock through the internal lock bolt to enter without permission. to prevent

In addition, the lever-type door lock discloses a door lock capable of locking and unlocking a door only from the inside, and a door lock capable of locking and unlocking the door from the inside and locking and unlocking the door from the outside with a key.

The former door lock locks and unlocks the door only from the inside, and has a configuration in which parts of a latch and a lever for opening and closing the door are engaged with each other and operated. On the other hand, in the case of the latter door lock, a locking device different from the latch and lever for opening and closing the door is configured separately, and through this, each performs an individual function.

1 is a perspective view of a drive module assembly applied to a conventional lever-type door lock. 1, the drive module assembly drives the worm gear 8 by the driven gear 6a and the interlocking gear 6b connected to the motor 5a to drive the drive plate 9 through the gear part 9a, and , through which a plurality of shafts 4 are connected to each other or configured to short circuit. Therefore, the conventional lever-type door lock can connect or short-circuit the handle shafts of indoor and outdoor through such a clutch connection structure.

On the other hand, the conventional driving module assembly has a structure arranged in the axial direction of the shaft 4 so that the motor 5a and the gears 6a, 6b, and 8 can be compactly disposed on the circularly formed mounting module 5c. . Also provided is a configuration for detecting the rotational position of the driving plate 9 and transmitting the clutch on/off state to the control unit. That is, the first sensor S1 and the second sensor S2 are respectively disposed along the rotation radius of the annularly arranged PCB (P), and a part of the driving plate 9 is provided with a sensing piece 9c, so that the driving plate When (9) is rotated, the sensing piece 9c can sense the rotational position of the driving plate 9 while reciprocating between the first sensor S1 and the second sensor S2 (specifically, the configuration and operation principle are Reference can be made to Prior Document 1 below).

However, the conventional drive module assembly is a configuration in which a plurality of sensors S1 and S2 are provided to respectively detect the clutch-on and clutch-off states in detecting the rotational position of the drive plate 90 , and the structure is complicated and the manufacturing cost is high. There was a problem acting as a factor to increase the. Meanwhile, a method of detecting the rotational position of the driving plate through a single sensor has been proposed in the conventional driving module assembly, but there is no disclosure of a specific structure for precisely detecting the position (rotational angle) of the driving plate.

<Prior Document 1>: Republic of Korea Patent Publication No. 2018-0114839 (published date: October 19, 2018)

The present invention was devised to solve the above problems, and it is an object of the present invention to provide a drive module assembly for a door lock having an on/off detection function capable of precisely detecting a specific rotational position of a drive cam member through a single sensor. do.

According to one embodiment of the present invention for achieving the above object, in the drive module assembly for a door lock that connects or short-circuits the first shaft and the second shaft with a pin member by rotating the drive cam member within the casing, A sensor sensing lever is installed inside the casing so as to be able to pivot around a pivot shaft, and a connection end in close contact with at least one flat surface formed on a part of the driving cam member is formed at one end of the sensing lever with respect to the pivot shaft. A detection end positioned close to the detection sensor is formed at the other end of the sensor detection lever, and when the driving cam member is rotated, the sensor detection lever is rotated in one direction and the detection sensor detects the movement of the detection end to detect the connection and short circuit state of the pin member, the driving cam member has a cam surface formed on an inner periphery, a gear portion formed on an outer periphery, and a rotation perimeter formed on at least one of the front and rear surfaces, and a portion of the rotation periphery Disclosed is a drive module assembly for a door lock in which at least one inflection region is formed.

The circumference of the rotation periphery of the driving cam member may be formed to have different radii of curvature based on the inflection region.

The circumference of the rotating peripheral portion may be formed to have at least three different radii of curvature.

Incidentally, the means for solving the above problems do not enumerate all the features of the present invention. Various features of the present invention and its advantages and effects may be understood in more detail with reference to the following specific embodiments.

According to the present invention, the rotational position of the driving cam member can be precisely detected through a single sensor, so even when the driving cam member stops during the clutch operation of the door lock, the rotational position is precisely detected and provided to the control unit, thereby providing the door lock device It is effective in preventing damage or failure of

1 is a perspective view of a drive module assembly applied to a conventional lever-type door lock;
2 is a perspective view of a drive module assembly for a door lock according to an embodiment of the present invention;
3 is an internal configuration diagram of a drive module assembly for a door lock according to an embodiment of the present invention;
4 is an exploded perspective view of a drive module assembly for a door lock according to an embodiment of the present invention;
5 is an operating state diagram of a drive module assembly for a door lock according to an embodiment of the present invention;
6 is a perspective view of a drive cam member of a drive module assembly for a door lock according to an embodiment of the present invention;
7 is an operation state diagram of a sensor sensing lever of a drive module assembly for a door lock according to an embodiment of the present invention;
8 is a state diagram illustrating a sensor detection cycle according to rotation of a driving cam member of a driving module assembly for a door lock according to an embodiment of the present invention; and
9 is a state diagram illustrating a sensor detection cycle according to rotation of a driving cam member of a driving module assembly for a door lock according to another embodiment of the present invention.

Hereinafter, preferred embodiments will be described in detail so that those of ordinary skill in the art can easily practice the present invention with reference to the accompanying drawings. However, in describing the preferred embodiment of the present invention in detail, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions.

In addition, throughout the specification, when a part is 'connected' with another part, it is not only 'directly connected' but also 'indirectly connected' with another element interposed therebetween. include In addition, 'including' a certain component means that other components may be further included, rather than excluding other components, unless otherwise stated.

2 to 4, the door lock drive module assembly of the present invention detects the rotation position of the drive cam member 50 rotated by the motor unit (M) and the drive cam member 50, the door lock clutch Sensing levers 30 for providing an on/off state to the control unit are respectively installed inside the casing unit 10 .

Specifically, the casing portion 10 is composed of a first casing (10a) and a second casing (10b). In addition, the driving cam member 50 is connected to the first shaft 20a, and the pin member P is vertically movably inserted into the first shaft 20a. At this time, the pin interlocking member (20c) is installed on the upper portion of the pin member (P). At this time, the pin interlocking member 20c is installed in a state of being elastically supported by the spring S as a medium on the second shaft 20b.

Accordingly, when the driving cam member 50 is rotated, the pin member P is pressed on the outer circumferential surface of the first shaft 20a by the inner cam surface 52 (FIG. 6). Accordingly, the pin member P is moved in the vertical direction. In addition, according to the vertical movement of the pin member (P), the pin interlocking member (20c) may also be raised and lowered in the second shaft (20b). That is, the pin interlocking member (20c) is positioned on the upper portion of the pin member (P). Therefore, when the driving cam member 50 is rotated and the pin member P is pressed by the cam surface 52 (FIG. 6), the pin interlocking member 20c is also raised together and the engaging groove 21h of the first shaft 20a. ) to achieve a state in which the pin interlocking member 20c is engaged (clutch-on state).

In this state, the first shaft 20a and the second shaft 20b are engaged with each other by the pin member P and the pin interlocking member 20c. Accordingly, the first shaft 20a and the second shaft 20b are engaged with each other and rotated together (state (b) of FIG. 5 ).

On the other hand, in this state, when the driving cam member 50 is rotated by the driving force of the motor unit M to achieve the state of FIG. 5 (a), the pin member P pressed by the cam surface 52 is the driving cam By the rotation of the member 50, the cam surface 52 is moved (moved to the state of Fig. 5 (a)), and at this time, the pin member P is supported by the spring S together with the pin interlocking member 20c. Return (descent) to the original state. Accordingly, the pin member P forms a state exposed to the outside as in the state of FIG. state).

In this state, the first shaft 20a and the second shaft 20b may rotate independently of each other without interlocking (rotating) with each other (clutch-off state).

Specifically, a driving gear G1 is connected to the motor unit M, and the driving connecting member 40 is connected to the driving gear G1 through an interlocking gear G2. Specifically, referring to FIG. 4 , the drive cam member 50 is gear-connected to the drive connection member 40 in a worm gear method, and the interlocking gears G2 are connected in series to the drive connection member 40 to the motor unit (M). and is arranged in gear-connected state. At this time, the drive connecting member 40, the interlocking gear G2 and the motor part M are connected in series to the lower part of the driving cam member 50, and these components are substantially the same on the inner surface of the second casing 10b. It may be arranged at a height to configure the casing portion 10 having a thin thickness.

Referring to FIG. 6 , a gear part 51 is formed on an outer peripheral surface of the driving cam member 50 , and a rotational peripheral part 55 having a predetermined thickness is formed to extend forward. This rotating periphery 55 is inserted into the opening of the second casing 10b (refer to FIG. 4 ) and rotated within the casing portion 10 .

Meanwhile, a cam surface 52 having an inflection point is formed on the inner circumferential surface of the driving cam member 50 . At this time, the cam surface 52 is composed of a first area 52a having a relatively large radius of curvature (a region from which the pin member protrudes) and a second area 52b having a relatively small radius of curvature (a region for pressing the pin member).

In addition, a first inflection region 56 and a second inflection region 57 are formed in the rotational peripheral portion 55 of the driving cam member 50 . These inflection regions 56 and 57 are located at the rotational perimeter 55 corresponding to the boundary point between the first region 52a and the second region 52b of the cam surface 52 . Here, the first inflection region 56 protrudes outwardly toward the rotational perimeter 55 , and the first inflection region 56 is thicker than the thickness of other portions of the rotational perimeter 55 (see FIG. 6 ). is formed with In addition, the second inflection region 57 is formed to have a flat surface of a predetermined region compared to other portions of the rotational peripheral portion 55 .

Meanwhile, as shown in FIG. 3 , the sensing lever 30 is installed in the second casing 10b to be pivotable based on the pivot shaft 33 . At this time, the sensing lever 30 has a sensing end 31 (refer to FIG. 4 ) exposed to the outside of the second casing 10b at one end from the pivoting shaft 33 as a starting point, and at the other end of the driving cam member 50 . A connecting end 32 in close contact with the rotating peripheral portion 53 is formed. Also, as shown in FIG. 5 , an elastic support part 35 extending in one direction (horizontal direction) is formed to protrude from the pivoting shaft 33 . At this time, the elastic support part 35 is fixed to the inside of the casing part 10 and serves to return to the original state by the elastic force of the elastic support part 35 even if the sensing lever 30 is moved to one side.

As described above, according to the present invention, the sensing lever 30 is formed in a bar shape, so that it can be rotated in the casing 10 around the pivoting shaft 33 . In addition, when the driving cam member 50 is rotated in one direction while the connecting end 32 of the sensing lever 30 is in close contact with the rotational peripheral portion 55 of the driving cam member 50, the sensing lever 30 By pushing the connecting end 32 to one side, the sensing end 31 of the sensing lever 30 is rotated in one direction. Accordingly, the movement of the detection end 31 is sensed (state (b) of FIG. 9) through a proximity sensor (PS; see FIG. 9) installed close to the detection end 31, and based on this, the driving cam member 50 ) can be detected. That is, for example, when the sensing end 31 is turned from its original position to a state close to the sensing unit, the sensing unit may detect it and transmit it to the control unit as a signal of the clutch-on state (in the state of (a) of FIG. 7 ). (b) transition to state). At this time, the PCB (P) of the door lock is mounted on the lower portion of the casing unit 10, and a proximity sensor (PS) for detecting the approach of the detection end 31 is installed on the PCB (P). Accordingly, it is possible to detect the approach of the sensing end 31 from the state of FIG. 9 (a) to the state of (b).

Meanwhile, when the driving cam member 50 is rotated to its original position while the sensing lever 30 is moved to one side as described above, the sensing lever 30 can also be returned to its original position by the elastic support part 35 . That is, when the driving cam member 50 is rotated in the clutch-off state, the sensing lever 30 also returns to its original position, and the sensing means (proximity sensor) detects this and sends it to the control unit as a signal of the clutch-off state. can do.

Referring to FIG. 8 , the sensing lever 30 is rotated according to the driving (rotation) of the driving cam member 50 , and the positions of the first inflection point 56 and the second inflection point 57 of the sensing lever 30 . It shows the state in which it is detected.

Specifically, the driving cam member 50 forms a state in which the connecting end 32 of the sensing lever 30 is in contact with the first inflection region 56 in the state of FIG. 8A . . In this state, while the driving cam member 50 rotates up to 150 degrees, the end of the sensing lever 30 is inclined to the right in FIG. 8 by the amount of curvature corresponding to the first inflection region 56 . . This state can be set to the clutch-on state.

On the other hand, in the process in which the driving cam member 50 is rotated from 150 degrees to 180 degrees as shown in FIG. That is, it indicates that the rotation has been made to the second inflection region 57 having a different radius of curvature from that of the first inflection region 56. This state may be set to a clutch-off state.

As described above, in the drive module assembly for a door lock having an on/off detection function of the present invention, a first inflection region 56 and a second inflection region 57 having different curvatures in the rotational circumference portion 55 of the driving cam member 50 . ) is formed, and the rotation angle of the driving cam member 50 can be precisely detected by sensing through the sensing lever 30 .

That is, the driving cam member 50 of the present invention forms a first inflection region 56 and a second inflection region 57 to correspond to the first region 52a and the second region 52b of the cam surface 52, , when the driving cam member 50 rotates, it is possible to secure a detection cycle (see FIG. 8 ) of a certain width for these regions 52a and 52b. Accordingly, when the driving cam member 50 stops during rotation (for example, due to a jamming phenomenon), a signal indicating where the first region 52a and the second region 52b is located through the detection cycle is also controlled can be sent to That is, the control unit can recognize that the connection end 32 of the sensing lever 30 is in contact with the first region 52a during operation is stopped or secure the current position (rotation point) of the driving cam member 50 .

Referring to FIG. 9 , according to another embodiment of the present invention, as described above, the formation positions of the inflection regions 56 and 57 of the rotation perimeter 55 are formed in a region between 150 degrees and 180 degrees, and in a range of 285 degrees to 315 degrees. It can be formed in the area between the figures.

That is, it is possible to arrange the inflection regions 56 and 57 having different curvatures at various angles on the rotational periphery 55 to secure a precise on-off detection function of the drive module assembly at various rotational radii or positions according to the purpose of use. can do.

In the above, the present invention has been illustrated and described with respect to specific embodiments, but the present invention is not limited to the above-described embodiments, and those of ordinary skill in the art to which the present invention pertains will The invention may be implemented with various changes without departing from the spirit of the invention.

10: casing part
10a: first casing
10b: second casing
20a: first shaft
20b: second shaft
20c: pin interlocking member
30: sensor detection lever
31: detection group
32: connecting end
33: pivot shaft
35: elastic support part
40: drive connection member
50: drive cam member
51: gear unit
52: cam surface
52a: first area
52b: second region
56: first inflection region
57: second inflection region

Claims (2)

In the driving module assembly for a door lock that connects or short-circuits the first shaft and the second shaft with a pin member by rotating the driving cam member in the casing,
A sensing lever is installed inside the casing to be pivotable about a pivot shaft, and a connection end in close contact with a part of the driving cam member is formed at one end of the sensing lever with respect to the pivot shaft, and the other end of the sensing lever A detection end positioned close to the detection sensor is formed, and when the driving cam member is rotated, the detection lever is rotated in one direction, and the detection sensor detects the movement of the detection end, so that the pin member is attached to the first shaft. Judging the state of connection and short circuit,
The driving cam member has a cam surface formed on its inner periphery, a gear portion formed on its outer periphery, a side surface formed with a rotating perimeter to which the connecting end is in close contact, and at least one inflection region formed on a portion of the rotating periphery. A door lock drive module assembly having an on/off detection function. According to claim 1,
The driving module assembly for a door lock having an on-off detection function, characterized in that the periphery of the rotational periphery of the driving cam member is formed to have different radii of curvature based on the inflection region.

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