KR100628866B1 - A power transmission structure and a door lock mechanism having it - Google Patents

Abstract

When the motor is driven by the application of power, the driving force is transmitted through the drive gear, and on the contrary, when the motor is not driven, the power transmission structure which causes the drive gear to be idle even if the driven gear engaged with the drive gear is rotated by an external force. The adopted door lock mechanism is disclosed. It is a case 140, a drive motor 130 is received in the case to generate power, a motor gear 131 is connected to the drive motor rotationally driven, and a drive gear connected to the motor gear to transfer power to the outside 139 and a clutch means for driving the drive gear 139 to rotate when the drive motor 130 is driven, and for driving the drive gear 139 to stop when the drive motor 130 is stopped. The clutch means is rotatably coupled to the first fixed shaft 141 fixed to the case 140, connected to the motor gear 131, and connected to the gear 133 having the small-diameter gear 133a, and the case 140. A lifting gear 134 having a large gear 134a and a small gear 134b rotatably coupled to the fixed second fixed shaft 142 and connected to the small gear 133a, and a first fixed shaft; A transmission gear 135 having a large-diameter gear 135a and a small-diameter gear 135b coupled to the elevating gear 141 and connected to the small-diameter gear 134b of the elevating gear 134, and the second fixed shaft 142. The clutch gear 136 is coupled to the elevating gear 135b of the transmission gear 135 and the coupling boss 136a is formed on the upper surface thereof, and the coupling groove detachably coupled to the coupling boss 136a. A rotating body 138 is formed and the driving gear 139 is fixed to the upper surface thereof, and the receiving groove 138a is accommodated in the rotating body 138 by the coupling boss 136a. The first spring 137 to maintain the separated state and the lifting means for maintaining the raised position of the clutch gear 136 and the lifting gear 134 so that the coupling boss 136a is coupled to the coupling groove 138a. It is provided.

Such a power transmission structure and a door lock mechanism employing the same not only prevent the damage of the gears connected by turning the driving gear 139 engaged with the driven gear even if the driven power source is provided to the driven gear 155, Smooth rotation of the driven gear makes the operation smooth.

Power transmission, lifting gear, transmission gear, door lock, driving motor

Description

A power transmission structure and a door lock mechanism having it}

1 is an exploded perspective view showing a power transmission structure of the present invention;

2a and 2b are assembled cross-sectional view of Figure 1 showing an operating state,

Figure 3a is a perspective view of the lifting gear employed in Figure 1,

3B is a cross-sectional view of FIG. 3A,

Figure 4 is an exploded perspective view showing a door lock mechanism employing the power transmission structure of the embodiment of the present invention,

5 is a schematic view showing the mechanism of the embodiment of the present invention with the door locked;

6 is a schematic view showing the operation of the door open in the room,

7 is a schematic view of a state in which the locking block is unlocked through the number manipulation panel outdoors;

8 is a schematic diagram of a state in which the locking of the latch block is released by operating the outer handle outdoors;

9 is a side view of an interlocking block employed in an embodiment of the present invention;

10A and 10B are schematic diagrams for explaining an interlocking relationship between a latch operating block and an interlocking block when rotating the interlocking block;

11 is a schematic diagram for explaining an interlocking relationship between a latch operating block and an interlocking block when rotating the latch operating block;

12 is a schematic perspective view showing a door lock mechanism according to an embodiment of the present invention;

13 is a cross-sectional view showing a conventional power transmission structure.

* Explanation of symbols for main parts of the drawings

100 ... lockcase 101 ... fixed jaw

102 ... Spring 110 ... Locker Block

111 ... 1st Slider 112 ... (1st Slider)

113,114 ... (1st slider) 1,2 jaw 120 ... latch block

121 ... 2nd Slider 122 ... Rack Gears

130 Drive motor 131 Motor gear

132,133 ... Connector Gear 134 ... Elevation Gear

135 Transmission Gear 136 Clutch Gear

138 Rotating Body 139 Driving Gear

140 ... case 150 ... locker operation block

151 ... (operation locker block) operating lever 152 ... (operation locker block) stopper

160 ... Interlocking blocks 163 ... Interlocking levers

170 ... Latch operation block 172 ... Sector gear (on latch operation block)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission structure and a door lock mechanism employing the same. In particular, when the motor is driven by application of power, the driving force is transmitted through the drive gear, and conversely, the motor is not driven. The present invention relates to a power transmission structure in which a drive gear rotates even when a driven gear engaged with the drive gear rotates with an external force, and a door lock mechanism employing the same.

Generally, a power transmission structure such as servomechanism is an automatic control system in which the control amount is in a mechanical position, that is, a feedback control system configured to follow an arbitrary change of a target value such as the position, orientation, and posture of an object, and a device that moves a machine as a command As a motor, a motor used in a servo mechanism is called a servo motor, and there are a DC motor and an AC motor.

These servomotors are capable of blackout and reverse, smooth operation at low speed, and rapid acceleration and deceleration, so that the locker can be opened and closed by children's intelligence development, learning robot and door lock mechanism. do.

One example of a power transmission structure is shown in FIG.

The power transmission structure includes a drive motor 1 accommodated in the motor case 60 and having a motor gear 2 on the motor shaft; A first shaft 33 fixed to the gear case 70 and the motor case 60 at a predetermined interval in parallel with the motor shaft; A first gear 11 rotatably coupled to the first shaft 33 and connected to the motor gear 2, and rotated together with the first gear 11 and a first gear 11. A first rotary transfer member (10) having a first gear (12) formed on an upper surface thereof; A second shaft 44 fixed to the cases 60 and 70 at a predetermined interval in parallel with the first shaft 33; A second large gear 21 rotatably coupled to the second shaft 44 and connected to the first small gear 12; and rotated together with the second large gear 21 and the second large gear ( A second rotary transfer member 20 having a second small gear 22 formed on an upper surface of the 21; A third large gear 31 rotatably coupled to the second shaft 33 and provided on an upper portion of the first rotational carrier 10, and connected to the second small gear 22; A third rotary transfer member 30 which rotates together with the standby gear 31 and has a third small gear 32 formed on the upper surface of the third large gear 31; A fourth large gear 41 rotatably coupled to the second shaft 44 and provided on an upper portion of the second rotating body 20 and connected to the third small gear 32; A fourth rotating body 40 which rotates together with the standby gear 41 and has a fourth small gear 42 formed on an upper surface of the fourth large gear 41; It is coupled to the fourth small gear 42 is interlocked and has an output rotating body 50 protruding to the upper portion of the gear case (70).

Such a power transmission structure can smoothly transmit rotational power to a driven gear (not shown) through the output rotating body 50 when the driving motor 1 is driven by the application of power, but on the contrary, the driving motor 1 When the driven gear is to be rotated by an external force in the non-driven state, the gear is not rotated by the driving gear and the rotating bodies engaged therewith, and when the severe rotational force is generated in the driven gear, the meshed gears are damaged.

The present invention was created in order to solve the above problems, the driving force is transmitted when the motor is driven by the application of the power through the drive gear, and on the contrary, the driven gear engaged with the drive gear when the motor is not driven It is an object of the present invention to provide a power transmission structure that allows the drive gear to turn around even when the motor is rotated by an external force and a door lock mechanism employing the same.

The present invention to achieve the above object is a case, a drive motor accommodated in the case for generating power, a motor gear connected to the drive motor to be driven rotationally, the drive connected to the motor gear to transfer power to the outside In a power transmission structure having a gear,

A clutch means is provided to allow the drive gear to rotate when the drive motor is driven and to allow the drive gear to be idle when the drive motor is stopped.

In the power transmission structure of the present invention, the clutch means is rotatably coupled to the first fixed shaft fixed to the case and connected to the motor gear and the small gear gear is formed,

A lifting gear rotatably coupled to a second fixed shaft fixed to the case and having a large gear and a small gear connected to the small gear;

A transmission gear having a large diameter gear and a small diameter gear that are coupled to the first fixed shaft to be liftable and connected to the small gear of the lifting gear,

A clutch gear coupled to the second fixed shaft so as to be liftable and connected to the small diameter gear of the transmission gear, and having a coupling boss formed on an upper surface thereof;

A rotating body having a coupling groove detachably coupled to the coupling boss and having a driving gear coupled to and fixed to an upper surface thereof;

A first spring accommodated in the rotating body to keep the coupling groove separated from the coupling boss;

And an elevating means for maintaining the raised position of the clutch gear and the elevating gear so that the engaging boss is coupled to the engaging groove.

In addition, the lifting means is formed in the circumferential direction of the recess and the convex portion in the bottom surface of the lifting gear,

A second spring fixed to the case and one end of which is in contact with the bottom surface of the lifting gear;

When the end of the second spring is located in the concave portion, the lifting gear maintains the lowered position, and when the lifting gear is driven to rotate, the end of the second spring is located in the convex portion to maintain the raised gear It is characterized by.

On the other hand, the door lock mechanism of the present invention to achieve the above object is a lock case embedded in the edge side of the door, a locker block and a latch block accommodated in the lock case and installed on the edge side of the door, and from the outside of the door In the door lock mechanism for locking and unlocking the door comprising a first operating means for entering and closing the locker block and the latch block, and a second operating means for entering and exiting the locker block and the latch block inside the door; ,

The second operating means is rotatably installed in the lock case and the locker operating block for coming out in conjunction with the locker block;

A driven gear rotatably coupled to the rocker operating block and rotated together with the rocker operating block for a predetermined period;

A drive motor generating power as a first rotation means for rotating the locker operation block and a drive gear engaged with the driven gear when the drive motor is driven are rotated, and the drive is stopped when the drive motor is stopped. A power transmission structure provided with clutch means for causing the gear to swing;

A latch operation block rotatably installed on the lock case and having a coupling hole to which an external handle is coupled, the latch operation block allowing the latch block to interlock with the latch block;

It is characterized in that it comprises an interlocking means for moving the locker block and the latch block together to unlock at the same time.

In addition, the interlocking means, the locker block is formed by extending the first slider formed with the first jaw and the second jaw formed a predetermined interval,

The locker operation block is rotated and an end portion which sequentially interlocks the first jaw and the second jaw, and an operating lever having an arcuate interlocking jaw extends on an upper surface thereof.

Sector gears are formed on the outer circumferential surface of the latch operation block,

A second slider slidably installed in the lock case in a direction parallel to the first slider and having a rack gear coupled to a rear end of the latch block and engaging the sector gear on one side;

A spring for restoring the second slider and the latch operation block so that the latch block is restored to a position protruding from the door;

 A coupling hole for coupling the latch operation block is formed in the center, and an interlock lever for interlocking the interlocking jaw is formed on an outer circumferential surface thereof. Interlocking block formed with a groove,

And a second rotating means for rotating the interlocking block,

The latch operation block is rotated together when the interlocking block is rotated, and the first and second sliders are moved together so that the locker block and the latch block enter the inside of the door together.

In addition, the second rotation means has a handle coupling hole is formed in the interlocking block, the inner handle is installed in the door coupling coupled to the handle coupling hole, so that the interlocking block is rotated in accordance with the rotation operation of the inner handle. It is characterized by.

In addition, the first operating means is a number operation panel installed on the outside of the door, a drive unit for driving the drive motor in accordance with the password operation of the number operation panel;

And an outer handle coupled to a coupling hole of the latch operation block at an outer side of the door.

The clutch means is a clutch gear is rotatably coupled to the first fixed shaft fixed to the case and is connected to the motor gear and the small gear gear is formed gear;

A lifting gear rotatably coupled to a second fixed shaft fixed to the case and having a large gear and a small gear connected to the small gear;

A transmission gear having a large diameter gear and a small diameter gear that are coupled to the first fixed shaft to be liftable and connected to the small gear of the lifting gear,

A clutch gear coupled to the second fixed shaft so as to be liftable and connected to the small-diameter gear of the transmission gear, and having a coupling boss formed thereon;

A rotating body having a coupling groove detachably coupled to the coupling boss and having a driving gear coupled to and fixed to an upper surface thereof;

A first spring accommodated in the rotating body to keep the coupling groove separated from the coupling boss;

And an elevating means for maintaining the raised position of the clutch gear and the elevating gear so that the engaging boss is coupled to the engaging groove.

In addition, the lifting means is formed in the circumferential direction of the recess and the convex portion in the bottom surface of the lifting gear,

A second spring fixed to the case and one end of which is in contact with the bottom surface of the lifting gear;

When the end of the second spring is located in the concave portion, the lifting gear maintains the lowered position, and when the lifting gear is driven to rotate, the end of the second spring is located in the convex portion to maintain the raised gear It is characterized by.

According to the characteristics of the present invention, the power transmission structure and the door lock mechanism employing the present invention is provided with a rotational power source to the driven gear when the rotational power is transmitted to the drive motor side is connected to the drive gear meshed with the driven gear is turned away Not only can they prevent damage, but also makes the driven gears rotate smoothly.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 showing the power transmission structure of the embodiment of the present invention, which is a case 140, a drive motor 130 accommodated in the case 140 to generate power, and the drive motor 130 It is connected to the motor gear 131 is rotated and driven, and the drive gear 139 is connected to the motor gear 131 for transmitting power to the outside.

In addition, a clutch means is provided to allow the drive gear 139 to rotate when the drive motor 130 is driven and to allow the drive gear 139 to be idle when the drive motor 130 is stopped.

The clutch means is rotatably coupled to the first fixed shaft 141 fixed to the case 140 and connected by the motor gear 131 and the first connecting gear 132 and the small-diameter gear 133a is formed. Large-size gears 134a and small-size gears rotatably coupled to the second fixed shaft 142 fixed to the case 140 and connected to the small-size gears 133a. A large gear 135a and a small gear 134 having a lifting gear 134 having a 134b, and being coupled to the first fixed shaft 141 so as to be liftable and connected to a small gear 134b of the lifting gear 134. A coupling gear 136a coupled to the transmission gear 135 and a second fixed shaft 142 so as to be lifted and lowered to the small-gear gear 135b of the transmission gear 135 and having a coupling boss 136a formed thereon. A clutch gear 136 and a coupling groove 138a detachably coupled to the coupling boss 136a are formed, and the drive gear 13 is formed on an upper surface thereof. A rotating body 138 to which 9 is coupled and fixed, a first spring 137 accommodated in the rotating body 138 to maintain the coupling groove 138a from the coupling boss 136a; And a lifting means for maintaining the raised position of the clutch gear 136 and the lifting gear 134 so that the coupling boss 136a is coupled to the coupling groove 138a.

3A and 3B, as shown in FIGS. 3A and 3B, a recess 134c and a convex portion 134d are alternately formed in the circumferential direction at the bottom of the elevating gear 134 and the case 140. And a second spring 143 fixed to the bottom end and contacting the bottom of the lifting gear 134 so that the end of the second spring 143 is positioned in the recess 134c. The gear 134 maintains the lowered position, and when the lifting gear 134 is rotated, the end of the second spring 143 is located at the convex portion 134d, and the lifting gear 134 is raised. Keep it.

That is, when the elevating gear 134 is continuously rotated by the power of the drive motor 130, the end of the second spring 143 is located in the convex portion (134d) of the elevating gear 134, the elevating gear It is possible to maintain the state in which 134 is pushed upward.

At this time, in the state in which the lifting gear 134 is rotated and stopped, the convex portion 134d is sharply formed so that the end portion of the second spring 143 may be located in the recess 134c, so that the end portion of the second spring 143 is When it is located in the convex portion 134d, it slides so that it can be positioned in the concave portion 134c.

In the power transmission structure as described above, when the driving motor 130 is driven to rotate by application of power, the first and second connection gears 132 and 133 and the lifting gear 134 are sequentially rotated.

In this case, as shown in FIG. 2B, the lifting gear 134 is moved upward by the second spring 143 to move the transmission gear 135 and the clutch gear 136 upward.

The coupling boss 136a of the clutch gear 136 moved upward is coupled to the coupling groove 138a of the rotor 138 to rotate the rotor 138 together. At this time, the drive gear 139 is rotated together to transmit power to the driven device (not shown) engaged with the drive gear 139.

Meanwhile, in the state in which the driving motor 130 is stopped, as shown in FIG. 2A, the end of the second spring 143 is positioned in the recess 134c of the elevating gear 134. ) Will remain lowered. That is, the elevating gear 134 maintains the lowered state by the spring force of the first spring 137 and the engaging boss 136a and the engaging groove 138a are separated, so that the lifting gear 134 is engaged with the driven gear (not shown). The drive gear 139 is idle.

Therefore, even if the rotational force acts on the driven gear (not shown), the drive gear 139 is in vain, thereby preventing damage to the plurality of gears connected between the driving motor 130.

On the other hand, the power transmission structure as described above may be applied to the door lock mechanism described below.

The door lock mechanism facilitates the opening of the door by unlocking the locker block and the latch block simultaneously by one operation when opening the door in a room. At this time, the drive gear 139 is idle.

On the other hand, when the door is to be opened outdoors, the operation of releasing the locker block and the operation of releasing the latch block are operated separately as usual.

77777777777777777777

4, 5 and 12 showing the door lock mechanism of the present invention, it is a lock case 100 is built in the edge side of the door 200, and is accommodated in the lock case 100 and the door The locker block 110 and the latch block 120 are installed to be protruded toward the edge side of the 200, and the first operation of operating the locker block 110 and the latch block 120 to the outside of the door 200. And an actuation means and second actuation means for oscillating the locker block 110 and the latch block 120 inside the door 200.

The second operating means is rotatably installed in the lock case (100) and the locker operation block 150 for interlocking with the locker block 110 and; A driven gear 155 rotatably coupled to the locker operation block 150 and rotated together with the locker operation block 150 for a predetermined period; A drive motor 130 that generates power as a first rotation means for rotating the locker operation block 150 and a drive gear 139 engaged with the driven gear 155 when the drive motor 130 is driven. A power transmission structure 400 having a clutch means for rotating the drive and for stopping the driving gear 139 when the driving motor 130 is stopped; A latch operation block 170 rotatably installed in the lock case 100 and having a coupling hole 171 to which an external handle is coupled, and which is engaged in conjunction with the latch block 120; The locker block 110 and the latch block 120 is provided with an interlocking means for simultaneously unlocking by moving together.

The interlocking means, the locker block 110 is formed by extending the first slider 111 and the first jaw 113 and the second jaw 114 formed a predetermined interval is formed, the locker operation block 150 is Rotating end 151a for sequentially interlocking the first jaw 113 and the second jaw 114 and an operating lever 151 having an arcuate interlocking jaw 151b on the upper surface thereof are extended. A sector gear 172 is formed on an outer circumferential surface of the latch operation block 170, and is installed to be slidable to the lock case 100 in a direction parallel to the first slider 111 and the latch block 120. The rear end of the second slider 121 is formed with a rack gear 122 is coupled to one side and the sector gear 172 is engaged, and the latch block 120 is to be restored to the position protruding from the door 200 A spring 102 for restoring and operating the second slider 121 and the latch operating block 170; The coupling hole 161 to which the 170 is coupled is formed, and an interlocking lever 163 for interlocking the interlocking jaw 151b is formed on an outer circumferential surface thereof, and the sector gear 172 is accommodated in the bottom portion thereof to rotate a predetermined angle. And interlocking block 160 having a sector groove 164 defining a rotation section so as to be able to rotate, and second rotating means for rotating the interlocking block 160.

When the interlocking block 160 is rotated, the latch operation block 170 rotates together, and the first and second sliders 111 and 121 move together to lock the blocker block 110 and the latch block 120. ) Together to enter the door.

The second rotation means has a handle coupling hole 162 is formed in the interlocking block 160, the inner handle installed in the door is coupled to the handle coupling hole 162, the inner handle 201 According to the rotation operation of the interlock block 160 has a structure to be rotated.

The first operating means includes a number manipulation panel 203 installed outside the door, a driving unit for driving the driving motor 130 according to a password manipulation of the number manipulation panel 203, and the door 200. It has a structure having an outer handle 202 coupled to the coupling hole 171 of the latch operation block 170 from the outside.

1 to 3, the clutch means is rotatably coupled to the first fixed shaft 141 fixed to the case 140 and connected to the motor gear 131. Large gear 134a which is rotatably coupled to the second fixed shaft 142 fixed to the case 140 and the connecting gear 133 having the gear 133a and connected to the small gear 133a. And a small gear 134b having a small gear 134b, and a large gear 135a coupled to the first fixed shaft 141 to be liftable and connected to the small gear 134b of the lift gear 134. And a transmission gear 135 having a small-diameter gear 135b, and coupled to the second fixed shaft 142 so as to be liftable and connected to the small-diameter gear 135b of the transmission gear 135, and having a coupling boss on the upper surface thereof. A clutch gear 136 having a 136a formed therein and a coupling groove 138a detachably coupled to the coupling boss 136a are formed. A rotating body 138 to which the drive gear 139 is fixedly coupled to the surface and the first to be accommodated in the rotating body 138 to maintain the coupling groove 138a from the coupling boss 136a A spring 137 and lifting means for maintaining the raised position of the clutch gear 136 and the lifting gear 134 so that the coupling boss 136a is coupled to the coupling groove 138a. Have

The elevating means has a recess 134c and a convex portion 134d formed alternately in the circumferential direction at the bottom of the elevating gear 134, and are fixed to the case 140 and one end thereof is the elevating gear ( And a second spring 143 contacting the bottom of the 134 to maintain the lift gear 134 in a lowered position when the end of the second spring 143 is positioned in the recess 134c. When the elevating gear 134 is rotated, the end of the second spring 143 is positioned at the convex portion 134d to maintain the elevated position of the elevating gear 134.

The door lock mechanism having the above configuration is operated as follows.

First, the operation of opening the door 200 indoors, referring to FIGS. 4 to 6 and 12, as shown in FIG. 5, the locker block 110 and the latch block 120 of the door 200 are provided. When the door 200 is closed and protrudes outward, when the inner handle 201 coupled to the interlocking block 160 is rotated in the clockwise direction, the interlocking lever 163 of the interlocking block 160 is the locker operation block 150. The locker operation block 150 is rotated counterclockwise by interlocking the interlocking jaw 151b.

When the interlocking block 160 is rotated clockwise by the inner handle 201, as shown in FIGS. 10A and 10B, when the latch operation block 170 is rotated clockwise together, the sector gear 172 and The locked state of the latch block 120 is released by moving the engaged second slider 121 and the latch block 120 to the right direction. At this time, the spring 102 is compressed between the latch block 120 and the fixing jaw (101).

At this time, the second slider 121 engaged with the sector gear 172 is always restoring force to restore to the left direction (the direction in which the latch block 120 protrudes out of the door 200) by the spring 102 and Therefore, the sector gear 172 of the latch operation block 170 tries to maintain a close contact with one side of the sector groove 164 of the interlock block 160.

On the other hand, as shown in Figure 5 and 6, when the locker operation block 150 is rotated counterclockwise by the rotation of the interlocking block 160 by the inner handle 201, the operating lever 151 End portion 151a of the) to sequentially move the first jaw 113 and the second jaw 114 of the first slider 111 to move the first slider 111 and the rocker block 110 to the right direction The locking state of the locker block 110 is released.

At this time, the locker operation block 150 which is interlocked and rotated by the interlocking block 160 is rotated irrespective of the driving motor 130. That is, since the lifting gear 134 maintains the lowered state in the state in which the driving motor 130 is stopped, the clutch gear 136 and the rotating body 138 are separated and the driving gear 139 is idle. Accordingly, since the rotational power of the driven gear 155 coupled to the locker operating block 150 is not transmitted to the driving motor 130 through the driving gear 139, the plurality of gears and the driving motor 130 Prevent damage.

Meanwhile, when the inner handle 201 rotated in the counterclockwise direction, the latch block 120 and the second slider 121 are moved to the left direction by the restoring force of the spring 102 that has been compressed, and to the left direction. In response to the rack gear 122 of the second slider 121 being moved, the latch operation block 170 is rotated counterclockwise to return to the original position, and the interlocking block 160 is moved from the position of FIG. 10B to the position of FIG. 10A. ) Is returned to the original position by the latch operation block 170.

As described above, the latch operation block 170 and the locker operation block 150 are rotated together by the rotation operation of the inner handle 201 coupled to the interlocking block 160 so that the locker block 110 and the latch block ( 120 will be unlocked at the same time.

7 and 8 illustrating an operation of opening a door outdoors, when a password is manipulated through the number manipulation panel 203, an electric signal is applied to the driving motor 130 through the driving unit to drive the motor 130. Will be driven.

At this time, when the elevating gear 134 is rotated by the second spring 143, the clutch gear 136 and the rotating body 138 are coupled to the drive gear 139 to rotate.

At this time, the operating lever 151 of the locker operating block 150 is interlocked with the protruding jaw 155a of the driven gear 155 engaged with the drive gear 139, and rotates counterclockwise, and the first through the end 151a. The lock is released by interlocking the slider 111 and the locker block 110 in the right direction.

As described above, while the locker block 110 and the first slider 111 are moved to the right by the power of the driving motor 130, the latch block 120 and the second slider 121 are not interlocked with each other. Keep it.

Subsequently, as shown in FIGS. 8, 11, and 12, when the outer handle 202 coupled to the latch operation block 170 is rotated, the latch operation block 170 is rotated in a clockwise direction and the sector gear ( The second slider 121 and the latch block 120 are moved to the right direction through the 172 to release the locking state of the latch block 120.

In this case, as shown in FIG. 11, when the outer handle 202 is rotated in the clockwise direction, the sector gear 172 moves in the free space of the sector groove 164 of the interlocking block 160. The interlocking block 160 is not interlocked.

In this state, when the outer handle 202 is pulled outward, the door is opened.

As described above, the door lock mechanism according to the present invention operates the locker block 110 and the latch block 120 at the same time by one rotation of the inner handle 201 when the door is opened in the room, thereby unlocking the door. It is possible to prevent the damage to the gear damage and the drive motor 130 by simplifying the drive gear 139, despite the rotational drive of the driven gear 155 during manual opening.

The present invention as described above is not limited to the above embodiments without departing from the spirit and scope of the present application can be practiced with a number of modifications.

According to the present invention, the power transmission structure and the door lock mechanism employing the same may not only prevent the damage of the gears connected to the driven gears 155 by turning the driving gears 139 engaged with the driven gears even if a rotational power source is provided to the driven gears 155. Smooth rotation of the driven gear makes the operation smooth.

In addition, when the door is to be opened indoors, the locker block and the latch block are moved together by one rotational operation of the inner handle 201 so that the door can be opened in one operation by releasing the locking at the same time to open the door. The operation is convenient, and despite the rotational driving of the driven gear 155 at the time of manual opening, the drive gear 139 is idle, thereby preventing gear damage and damage to the drive motor 130.

Claims (9)

A power transmission structure including a case, a drive motor accommodated in the case and generating power, a motor gear connected to the drive motor to rotate and driven, and a drive gear connected to the motor gear to transfer power to the outside. In Clutch means for driving the drive gear 139 is rotated when the drive motor 130 is driven, and the drive gear 139 is idle when the drive motor 130 is stopped. Power transmission structure. The connecting gear of claim 1, wherein the clutch means is rotatably coupled to the first fixed shaft 141 fixed to the case 140, is connected to the motor gear 131, and has a small-diameter gear 133a. 133), Lift gear 134 having a large gear 134a and a small gear 134b rotatably coupled to the second fixed shaft 142 fixed to the case 140 and connected to the small gear 133a. )Wow, A transmission gear 135 having a large gear 135a and a small gear 135b coupled to the first fixed shaft 141 to be liftable and connected to the small gear 134b of the lifting gear 134; A clutch gear 136 coupled to the second fixed shaft 142 to be elevated and connected to the small-diameter gear 135b of the transmission gear 135, and having a coupling boss 136a formed thereon; A coupling groove 138a detachably coupled to the coupling boss 136a, and a rotating body 138 to which the driving gear 139 is coupled and fixed on an upper surface thereof; A first spring 137 accommodated in the rotating body 138 to maintain the coupling groove 138a from the coupling boss 136a; And a lifting means for maintaining the raised position of the clutch gear 136 and the lifting gear 134 so that the coupling boss 136a is coupled to the coupling groove 138a. According to claim 2, wherein the elevating means is formed in the bottom surface of the elevating gear 134, the concave portion 134c and the convex portion (134d) are alternately formed in the circumferential direction, The second spring 143 is fixed to the case 140 and one end thereof is in contact with the bottom surface of the lifting gear 134, When the end of the second spring 143 is located in the recess 134c, the lifting gear 134 maintains the lowered position, and the second spring 143 when the lifting gear 134 is driven to rotate. The end of the power transmission structure, characterized in that positioned in the convex portion (134d) to maintain the lift gear (134) raised position. A lock case embedded in an edge side of the door, a locker block and a latch block accommodated in the lock case and mounted on the edge side of the door, and a first operation of operating the locker block and the latch block from the outside of the door; In the door lock mechanism for locking and unlocking the door having an operating means and a second operating means for entering and exiting the locker block and the latch block inside the door, The second operating means is rotatably installed in the lock case (100) and the locker operation block 150 for interlocking with the locker block 110 and; A driven gear 155 rotatably coupled to the locker operation block 150 and rotated together with the locker operation block 150 for a predetermined period; A drive motor 130 that generates power as a first rotation means for rotating the locker operation block 150 and a drive gear 139 engaged with the driven gear 155 when the drive motor 130 is driven. A power transmission structure having a clutch means for rotating the drive and for stopping the driving gear 139 when the driving motor 130 is stopped; A latch operation block 170 rotatably installed in the lock case 100 and having a coupling hole 171 to which an external handle is coupled, and which is engaged in conjunction with the latch block 120; Door lock mechanism, characterized in that the interlocking means for moving the locker block 110 and the latch block 120 together to unlock at the same time. The method of claim 4, wherein the linkage means, The locker block 110 is formed by extending the first slider 111 formed with the first jaw 113 and the second jaw 114 formed at predetermined intervals, The locker operation block 150 has an operating lever having an end portion 151a which sequentially rotates the first jaw 113 and the second jaw 114 while being rotated, and an arcuate linkage jaw 151b on the upper surface thereof. 151 is extended, Sector gear 172 is formed on the outer circumferential surface of the latch operation block 170, The rack gear 122 is slidably installed in the lock case 100 in a direction parallel to the first slider 111 and the rear end of the latch block 120 is coupled and the sector gear 172 is engaged with one side thereof. The second slider 121 is formed, and A spring 102 for restoring and operating the second slider 121 and the latch operation block 170 so that the latch block 120 is restored to a position protruding from the door;  A coupling hole 161 to which the latch operation block 170 is coupled is formed at a center thereof, and an interlock lever 163 is formed at an outer circumferential surface thereof to interlock the interlocking jaw 151b. And interlocking block 160 having a sector groove 164 defining a rotational section to accommodate the rotational rotation by a predetermined angle; It is provided with a second rotating means for rotating the interlocking block 160, When the interlocking block 160 is rotated, the latch operation block 170 is rotated together, and the first and second sliders 111 and 121 are moved together to lock the blocker block 110 and the latch block 120. Door lock mechanism, characterized in that to enter into the door together. The method of claim 5, wherein the second rotation means is the handle coupling hole 162 is formed in the interlocking block 160, the inner handle installed in the door is coupled to the handle coupling hole 162, Door lock mechanism, characterized in that the interlocking block 160 is rotated in accordance with the rotation operation of the inner handle. 7. The apparatus of claim 6, wherein the first operating means comprises: a number manipulation panel 203 installed on the outside of the door, a driving portion for driving the driving motor in accordance with a password manipulation of the number manipulation panel 203; The door lock mechanism, characterized in that it has an outer handle (202) coupled to the coupling hole (171) of the latch operation block (170) outside the door. According to any one of claims 4 to 7, wherein the clutch means is the clutch means is rotatably coupled to the first fixed shaft 141 fixed to the case 140 and connected to the motor gear 131 And a connecting gear 133 having a small diameter gear 133a, Lift gear 134 having a large gear 134a and a small gear 134b rotatably coupled to the second fixed shaft 142 fixed to the case 140 and connected to the small gear 133a. )Wow, A transmission gear 135 having a large gear 135a and a small gear 135b coupled to the first fixed shaft 141 to be liftable and connected to the small gear 134b of the lifting gear 134; A clutch gear 136 coupled to the second fixed shaft 142 to be elevated and connected to the small-diameter gear 135b of the transmission gear 135, and having a coupling boss 136a formed thereon; A coupling groove 138a detachably coupled to the coupling boss 136a, and a rotating body 138 to which the driving gear 139 is coupled and fixed on an upper surface thereof; A first spring 137 accommodated in the rotating body 138 to maintain the coupling groove 138a from the coupling boss 136a; And a lifting means for maintaining the raised position of the clutch gear 136 and the lifting gear 134 so that the coupling boss 136a is coupled to the coupling groove 138a. The method of claim 8, wherein the elevating means is formed in the bottom surface of the elevating gear 134, the recess 134c and the convex portion (134d) is alternately formed in the circumferential direction, The second spring 143 is fixed to the case 140 and one end thereof is in contact with the bottom surface of the lifting gear 134, When the end of the second spring 143 is located in the recess 134c, the lifting gear 134 maintains the lowered position, and the second spring 143 when the lifting gear 134 is driven to rotate. The end of the door lock mechanism, characterized in that located in the convex portion (134d) so that the lifting gear (134) to maintain the raised position.

Images