KR102318848B1 - Clutch Module Assembly for Door Lock - Google Patents

Abstract

The present invention discloses a clutch module assembly of a door lock that enables smooth clutch connection at any angle regardless of the angle of a rotation shaft and improves operational reliability. The present invention is a clutch module assembly of a door lock for clutch connection between a first shaft member to which a mortise operation shaft is connected and a second shaft member to which a handle shaft is connected, wherein the first shaft member and the second shaft member face each other. A clutch gear is formed on one side, a spring is interposed between the first shaft member and the second shaft member, is axially movably inserted into the body region of the first shaft member, and a cam surface is formed on one side The formed cam member, and at least one cam projection that rotates by the driving force of the driving motor and moves along the cam surface of the cam member is provided with a cam driving gear part for moving the cam member in the axial direction. do.

Description

Clutch Module Assembly for Door Lock

The present invention relates to a door lock clutch module assembly, and more particularly, to a door lock clutch module assembly capable of improving operational reliability.

In general, a lever-type door lock is installed in a space (for example, a room or a bathroom) provided in the home to arbitrarily control the entrance. Such a door lock rotates either an indoor lever or an outdoor lever to draw in or withdraw the latch bolt of the door lock from the strike installed in the door frame to set or release the lock of the door lock.

On the other hand, these lever-type door locks are largely divided into a door lock that can lock and unlock the door only from the inside, and a door lock that locks and unlocks the door from the inside and locks and unlocks the door from the outside with a key.

In the latter case, 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, whereas in the former case, which locks and unlocks the door only from the inside, the latch and The parts of the lever have a configuration in which they engage and operate.

1 is a perspective view of a clutch module assembly applied to a conventional lever-type door lock. 1, the clutch 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 the plurality of shafts 4 are connected to each other or short-circuited. Therefore, it is possible to connect or short-circuit the indoor and outdoor handle shafts through such a clutch connection structure.

On the other hand, the conventional clutch 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 arranged on the circularly formed mounting module 5c. became In addition, a configuration for transmitting the clutch on/off state to the controller by sensing the rotational position of the driving plate 9 is also provided. 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 (specific configuration and operation principle are Reference can be made to Prior Document 1 below).

However, the conventional clutch module assembly has a problem in that the operation of the pin clutch is not smooth when the driving plate for driving the pin is not aligned in the operating position as a configuration to which the pin clutch method is applied. That is, the position for maintaining the connection state of the pin clutch is set within a certain range, and when the position is deviated from this position during rotation, a problem has been raised that causes malfunction or structural deformation.

In particular, when it is applied to the inner and outer handle shafts of the door lock or for clutch connection to the shaft of the thumb turn, the rotation angle can be operated only within 90 degrees. A difficult question was raised.

<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 an object of the present invention is to provide a clutch module assembly of a door lock that enables smooth clutch connection at any angle regardless of the angle of the rotation shaft and improves operational reliability.

According to an embodiment of the present invention for achieving the above object, a driving motor; a connecting gear unit connected to the drive motor and driven; a cam driving gear unit connected to the connecting gear unit, rotating by receiving the driving force of the driving motor, and having at least one cam projection formed on one side; a cam member having a cam surface in contact with the tip of the cam protrusion of the cam driving gear unit and moving forward and backward by the cam protrusion when the cam driving gear unit rotates; a first shaft member disposed coaxially with the cam member, having a first clutch gear formed on one side thereof and having the cam member in close contact with the other side thereof; and the first shaft member and the first shaft member disposed opposite to each other with a spring interposed therebetween, a tip into which the operating shaft is inserted is formed on one side thereof, and the other side is selectively engaged with the first clutch gear of the first shaft member There is provided a clutch module assembly of a door lock including a second shaft member on which a second clutch gear is formed.

It may further include a guide portion accommodating the cam member and having a guide groove of a predetermined length formed on an outer circumferential surface thereof, and a guide protrusion moving along the guide groove may be formed on the outer circumferential surface of the cam member.

The first shaft member may include a body region in which the cam member is inserted and moved in a linear direction, and a motive operation shaft may be connected to the body region.

A potentiometer for detecting a rotation angle of the connected gear unit may be connected to one end of the connected gear unit.

In addition, according to the present invention, as a clutch module assembly of a door lock for clutch connection between a first shaft member to which a mortise operation shaft is connected and a second shaft member to which a handle shaft is connected, the first shaft member and the second shaft member are mutually connected. Clutch gears are respectively formed on one side facing each other, and a spring is interposed between the first shaft member and the second shaft member, and is axially movably inserted with respect to the body region of the first shaft member and one A cam member having a cam surface formed on the side thereof, and at least one cam protrusion that rotates by a driving force of a driving motor and moves along the cam surface of the cam member, the cam driving gear unit for moving the cam member in the axial direction A door lock clutch module assembly is provided.

According to the present invention, by forming a clutch gear on a plurality of shaft members and moving them in the axial direction, the clutch can be connected and short-circuited, so that the clutch can be connected smoothly at any angle regardless of the angle of the rotation shaft and the operation reliability can be improved. there is an effect

1 is a perspective view showing a part of a clutch module assembly applied to a conventional lever-type door lock;
2 is a perspective view showing the internal configuration of a part of the clutch module assembly of the door lock according to an embodiment of the present invention through a cross-section;
3 is an exploded perspective view of a clutch module assembly of a door lock according to an embodiment of the present invention;
4 is a state diagram showing a state in which a guide protrusion and a cam protrusion are coupled to the guide part of the clutch module assembly of the door lock according to an embodiment of the present invention;
5 is a state diagram showing a state in which the first clutch gear and the second clutch gear of the clutch module assembly of the door lock are connected and short-circuited according to an embodiment of the present invention;
6 is a view of a clutch module assembly of a door lock according to an embodiment of the present invention; A state diagram showing the connection and short circuit of the first shaft member and the second shaft member, and
7 is a view of a clutch module assembly of a door lock according to an embodiment of the present invention; It is a perspective view showing the state in which the potentiometer is mounted on the connecting gear part.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. In addition, unless otherwise defined in the technical terms and scientific terms used, those of ordinary skill in the art to which this invention pertains have the meanings commonly understood. In the following description and accompanying drawings, descriptions of well-known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. The accompanying drawings are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other forms. Also, like reference numerals refer to like elements throughout. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible.

Referring to FIG. 2 , in the clutch module assembly of the door lock of the present invention, a plurality of reduction gears 62 are connected to the driving motor 61 . A connection gear part 63 is formed on the upper side with respect to the bracket 80 , which is gear-connected to the reduction gear 62 and rotated by the driving force of the driving motor 61 . Here, a driven gear 64 is mounted at an end of the connecting gear unit 63 . Accordingly, the rotational force of the driving motor 61 is transmitted to the driven gear 64 through the reduction gear 62 and the connecting gear unit 63 .

On the other hand, a second shaft member 10 to which a handle shaft or a thumb turn drive shaft is connected is mounted on the front side with respect to the bracket 80, with the second shaft member 10 and the spring S1 interposed therebetween, the first shaft member ( 20) is mounted on the inside of the guide part (50). At this time, the first shaft member 20 is connected to the motive operation shaft 75 .

That is, the first shaft member 20 is connected to the motive operating shaft 75 for unlocking or locking the motive, and the second shaft member 10 is connected to the driving shaft of the handle or thumb turn.

Accordingly, when the first shaft member 20 and the second shaft member 10 engage with each other or perform a short-circuit operation (aka: clutch operation), the driving force of the handle or thumb turn is transmitted to the mortise actuator to unlock and lock the mortise. can be optionally set.

3 to 5 , the clutch module assembly of the present invention includes a second shaft member 10 partially installed in a bracket 80 , and a guide part 50 inserted into the second shaft member. A first shaft member (20) installed on the same axis as (10) is installed.

In addition, the cam member 30 and the cam driving gear part 40 are mounted inside the guide part 50 to move the first shaft member 20 forward and backward in the axial direction, and the guide part 50 has a housing part. (60) is mounted. In addition, a cover plate 70 is mounted at the distal end of the housing part 60 . As such, the main components are installed between the bracket 80 and the cover plate 70 .

4 and 5 , the second shaft member 10 is disposed such that the second clutch gear 12 forms a circle on one side thereof, and the tip 11 to which the drive shaft (the drive shaft of the handle or thumb turn) is connected to the other side. ) is formed. A first clutch gear 21 is formed on the first shaft member 20 to engage the second clutch gear 12 , and a spring S1 is formed between the first clutch gear 21 and the second clutch gear 12 . This is interposed, and when the first clutch gear 21 and the second clutch gear 12 mesh with each other in a state in which the elastic force of the spring S1 is overcome, a clutch-on state is formed, and the elastic force of the spring S1 is formed. When the clutch gears are short-circuited with each other, a clutch-off state is achieved.

Meanwhile, the above-described clutch operation is performed through the cam member 30 and the cam driving gear unit 40 for moving the first shaft member 20 in the axial direction. Specifically, as shown in FIG. 5 , the cam member 30 is coupled to the body region 22 of the first shaft member 20 while being fitted. Here, the cam member 30 has a cam surface 32 formed along the outer periphery, and a guide protrusion 31 is formed to protrude outward from the outer surface. On the other hand, the cam member 30 and the cam driving gear part 40 are accommodated in the guide part 50, and a guide groove 51 of a certain length is formed on the outer peripheral surface of the guide part 50, and the guide groove 51 has The guide protrusion 31 of the cam member 30 is positioned. Accordingly, when the cam member 30 is moved, the guide protrusion 31 is guided along the guide groove 51 of the guide part 50 .

Also, the cam driving gear unit 40 is positioned at the end of the body region 22 of the first shaft 20 . Here, the cam driving gear unit 40 has gear teeth 42 formed along the outer periphery, and the gear teeth 42 are gear-connected to the driven gear 64 . In addition, a pair of cam projections 41 are formed in front of the cam driving gear unit 40 . The cam projection 41 is positioned to abut against the cam surface 32 of the cam member 30 as shown in FIG. 5 . Accordingly, when the driven gear 64 is rotated to rotate the cam driving gear unit 40 , the cam projection 41 slides along the cam surface 32 . As such, when the cam projection 41 moves along the cam surface 32, the cam member 30 moves according to the curvature of the cam surface 32 while overcoming the elastic force of the spring S1 as shown in FIG. 5 (b). Accordingly, the first clutch gear 21 and the second clutch gear 12 are engaged with each other (clutch-on state).

Next, referring to FIG. 6 , the clutch module assembly of the present invention is such that the first shaft member 20 is in close contact with or spaced apart from the second shaft member 10 mounted on the bracket 80 , the first clutch gear 21 . and the second clutch gear 12 are engaged with each other or short-circuited.

For this operation, a cam driving gear unit 40 rotating by a driven gear 64 is installed inside the guide unit 50 , and the cam is fitted in the body region 22 of the first shaft member 20 . The member 30 is mounted. At this time, since the cam projection 41 of the cam driving gear unit 40 is positioned to abut against the cam surface 32 of the cam member 30, when the driven gear 64 is rotated, the cam driving gear unit 40 rotates to one side. and the cam projection 41 moves along the cam surface 32 by the rotation of the cam driving gear unit 40 . Therefore, according to the curvature of the cam surface 32, the cam member 30 is moved forward (to be pushed forward), and the first shaft member 20 together with the cam member 30 also moves forward. That is, when the first shaft member 20 is in close contact with the second shaft member 10 as shown in FIG. 6B , the respective clutch gears 12 and 21 are engaged with each other, and in this state, the second shaft member The rotational force of (10) is transmitted to the first shaft member (20) so that rotation is possible together.

For example, when the handle shaft is connected to the first shaft member 20 and the mortise operating shaft 75 ( FIG. 2 ) is connected to the second shaft member 10 , the first shaft member 20 and the second shaft member When (10) is interlocked with each other, the mortis is unlocked by manipulating the handle, and the door can be opened (door lock unlocked state).

Conversely, when no more rotational force is applied to the cam driving gear unit 40 or the cam driving gear unit 40 is rotated in the clutch-off direction, it is interposed between the first shaft member 20 and the second shaft member 10 . The clutch gears 12 and 21 are shorted to each other by the spring S1. In this case, even if the handle is operated from the outside, since the first shaft member 20 is in a short-circuited state to the first shaft member 10 , the motive operation shaft 75 connected to the first shaft member 10 cannot be rotated. Therefore, in this state, a clutch-off state (no load state) in which only the handle is idle is achieved (door lock lock state).

Referring to FIG. 7 , a potentiometer 90 is mounted on the connecting gear 63 of the clutch module assembly of the door lock of the present invention. Here, the potentiometer 90 stores the rotation angle of the connecting gear unit 63 from 0° to 90°, and always serves to control the forward and reverse motions to the 0° or 90° point. Accordingly, the driving control (clutch operation control) of the driving motor 61 may be performed based on the detection of the rotation angle of the potentiometer 90 .

For example, if it is detected that the connection gear unit 63 is positioned at a position other than 0° or 90°, the driving motor 61 is driven to control the position to be within the corresponding range, and then the clutch operation is finished. In addition, in some cases, by checking the operating current, even when the current exceeding the allowable value is momentarily consumed, it is recognized (recognized as 0° or 90°) to stop the operation of the driving motor 61 to prevent malfunction. That is, the clutch operation control is possible through a single potentiometer 90 without disposing a plurality of position detection sensors as in the conventional door lock.

As described above, according to the present invention, by forming the clutch gears 12 and 21 on the plurality of shaft members 10 and 20 and moving them in the axial direction, the clutch can be connected and short-circuited. Clutch connection is possible, which can improve operation reliability.

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

30: cam member
31: guide turn
32: cam surface
40: cam drive gear unit
41: cam projection
42: gear teeth
50: guide unit
60: housing unit
61: drive motor
62: reduction gear
63: connecting gear unit
64: driven gear
70: cover plate
80: bracket
90: potentiometer

Claims (5)

A clutch module assembly of a door lock that forms a clutch connection and short circuit by rotating a driven gear through a reduction gear and a connection gear unit by a driving motor,
a cam driving gear unit connected to the connecting gear unit, rotating by receiving the driving force of the driving motor, and having at least one cam projection formed on one side;
a cam member having a cam surface to which the tip of the cam protrusion abuts on the cam driving gear unit is formed and moving forward and backward by the cam surface and the cam protrusion when the cam driving gear unit rotates;
a first shaft member disposed coaxially with the cam member, having a first clutch gear formed on one side thereof, and having the cam member in close contact with the other side thereof;
The first shaft member is disposed opposite to each other with a spring interposed therebetween, a tip into which the operating shaft is inserted is formed on one side thereof, and the other side is selectively engaged with the first clutch gear of the first shaft member a second shaft member on which a second clutch gear is formed; and
and a guide part in which the cam member is accommodated and a guide groove of a certain length is formed on an outer circumferential surface,
A guide protrusion moving along the guide groove is formed on the outer peripheral surface of the cam member,
The first shaft member has a body region in which the cam member is inserted and moved in a straight direction, and a motive operation shaft is connected to the body region. According to claim 1,
A clutch module assembly of a door lock, characterized in that a potentiometer for detecting a rotation angle of the connecting gear unit is connected to one end of the connecting gear unit. delete delete delete

Images