KR100542641B1 - Locking device of motise lock - Google Patents

Abstract

The present invention is to provide a mortise lock device having a latch and a dead bolt as the latch is opened when the door handle is rotated in the first direction and the dead bolt is locked when the door handle is rotated in the second direction.

Mortis lock locking device of the present invention, the dead bolt cam integrally coupled with the key lever shaft for reciprocating the dead bolt to the locked position and the open position, and the latch link for reciprocating the latch to the locked position and the open position; And integrally coupled to the latch release shaft to operate the latch link and the dead bolt cam, so that when the latch release shaft rotates in the first direction, the latch link moves in the latch opening direction, and the latch release shaft moves to the second latch release shaft. And rotating means to move the dead bolt cam in a direction in which the dead bolt is locked. The actuation means includes a two-function cam integrally coupled to the latch release shaft, the first cam portion being formed between the latch link, and the second cam portion being formed between the dead bolt cam. It is done by

Mortis lock, latch, dead bolt, cam, spring.

Description

Locking device of motise lock

1 is a schematic configuration diagram of a conventional mortise lock locking device.

Figure 2 is a side view of a typical mortise lock.

Figure 3 is a plan view of the present mortise lock locking device.

4 to 6 are views for explaining the operation of the mortise lock locking device of the present invention.

Figure 7 is a schematic exploded perspective view for explaining the internal cam mechanism of the mortise lock locking device of the present invention

8 is a view for explaining the coupling relationship of the latch release shaft.

9 and 10 are front and side views for explaining the shaft spring.

* Explanation of symbols for the main parts of the drawings *

20: Case 21: Dead Bolt

22: Latch 25, 26: dead bolt plate pin

27: lever 28: key lever

29: dead bolt cam 30: guide ball

31: slider spring 32: lifting slider

32a: (opening type) cam part 33, 34: cam part

35 link 36 shaft pin

37: guide hole 38: latch guide pin

39: latch guide bush 40: latch spring

41: cam portion

160; Triangle Cam 150: Internal Operation

163: internal cam 165: internal door handle

201: Mortis lock case 203: dead bolt

205: dead bolt plate 207: dead bolt guide pin

211: position fixing spring

213, 215: Dead bolt plate pin 219: Dead bolt cam

221: key lever shaft 229: latch release shaft

230: two-function cam 236: latch plate pin

237: latch link 238: latch link pin

239: latch plate 241: latch

245: latch spring 247: latch spring housing

250: shaft spring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mortise lock lock and to a mortise lock lock capable of operating a latch and a dead bolt as a door handle.

A conventional mortise lock locking device has been described in Korean Utility Model Registration No. 20-0180200. As shown in FIG. 1, the dead bolt 21 and the latch 22 are slidably coupled up and down inside the case 20 through the protrusions of the case, and the dead bolt 21 has a predetermined interval back and forth. The dead bolt plate pins 25 and 26 are formed, and the dead bolt plate pins 25 and 26 are connected to the dead bolt cams 29 which are capable of angular movement only by the key lever 28 or the like. And the inner side of the dead bolt cam 29 is elevating through the guide hole 30, the elastic spring is installed on the slide spring 31 and the lifting slider 32 having an open cam portion 32a, but the lifting slider ( The cam part 33 is formed at one side of the upper surface of the 32. And the S-shaped link 35 which has the cam part 34 connected to the cam part 33 in upper and lower ends is fixed on the case 20 with the shaft pin 36, and it installs so that each movement is possible. The latch 22 fixed to the latch 22 and elastically installed on the latch spring 40 while being in contact with the latch guide bush 39 on the latch guide pin 38 guided by the guide hole 37 on the case 20. ) So as to slide left and right, an inclined cam portion 41 is formed below the link 35. At this time, the rotation radius of the lower cam portion 41 is made larger than the rotation radius of the upper cam portion 34 of the link 35.

In the conventional mortise lock locking device configured as described above, when the latch driving means is operated from the outside, the force raises the lifting slider 32, and the latch 22 is rotated while the link 35 is rotated according to the lifting slider 32. It slides in the unlocking direction. Then, the dead bolt 21 operates the dead bolt driving means from the outside to rotate the key lever 28, dead bolt cam 29 is rotated, dead bolt 21 is to slide in the locking or unlocking direction. do.

And, as shown in Figure 2, looking at the side of the general mortise lock, it can be seen that the width of the dead bolt is formed narrower than the width of the latch. This is the surface of the dead bolt is to operate with a small force without causing friction with the dead bolt insertion groove (not shown) formed in the door frame so that the lock can be released by sliding into the mortise lock case. Especially when you want to electronically lock and unlock the Mortis lock locking device, the driving of the latch is mainly performed by the user who wants to open the door by driving the external handle by force, but the dead bolt slides by the electronic device. It is possible to improve the durability of the mortise lock locking device to be configured to slide with a small force compared to the latch.

However, in order to lock the conventional mortise lock locking device as shown in FIG. 1, the key lever 28 for driving the dead bolt 21 must be turned, and the key lever is rotated by a key or driven by the electromagnet force of the electronic lock device. do. In other words, to open or lock the dead bolt, the key lever should be operated.

The conventional mortise lock locking device is driven by separately separating the dead bolt driving means and the latch driving means. Recently, a solenoid is mounted on the outside of the mortise lock to unlock the dead bolt and the latch with one touch. Device is being developed and is in widespread use. However, even if the dead bolt and the latch can be unlocked by one touch, there is a inconvenience in that the dead bolt locking means must be driven separately from the latch driving means when the dead bolt is locked.

In addition, since Mortis Lock regulates the size and location of fastening holes in the Mortis lock case, the devices for driving the latches and dead bolts in a limited and standardized space are formed in a somewhat complicated configuration inside the Mortis lock case. The manufacturing process is complicated and there is a problem of poor durability.

In addition, since the handle of the conventional mortise lock receives the original force by the latch spring of the locking device, when the latch spring is weak, the handle cannot be returned to its original position when the latch spring is weak. I couldn't.

An object of the present invention is a mortise lock device having a latch and a dead bolt, the latch and the dead bolt is opened simultaneously when the inner door handle is rotated in the first direction, and the dead bolt is locked when the door handle is rotated in the second direction. To provide a lock.

The present invention provides a mortise lock locking device having a latch and a dead bolt, comprising: a dead bolt cam integrally coupled with a key lever shaft for reciprocating the dead bolt to a locked position and an open position, and a latch to a locked position and an open position. It is integrally coupled to the latch release shaft for reciprocating movement and the latch link and the dead bolt cam to move the latch link in the opening direction when the latch release shaft is rotated in the first direction. The mortise lock device includes an actuating means for moving the dead bolt cam in a direction in which the dead bolt is locked when the latch release shaft is rotated in the second direction.

The actuating means includes a two-function cam integrally coupled to the latch release shaft, the first cam portion being formed between the latch link, and the second cam portion being formed between the dead bolt cam. The shaft spring is further provided so that the two-function cam is always returned to a predetermined position after being rotated by the door handle.

The latch release shaft includes a first hub coupled to an inner door handle shaft coupled to a door handle installed inside the door, and a second hub coupled to an external door handle shaft coupled to a handle installed outside the door. The hub and the second hub are selectively formed with a cylindrical portion and a cylindrical groove so that the first hub and the second hub are combined to rotate independently of each other with one axis as the center of rotation, and the second hub by an external door handle. Is rotated, and the first hub is configured to rotate only by the inner door handle shaft.

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

3 to 6, the present invention is a mortise lock locking device having a latch 241 and a dead bolt 203, wherein a key lever is used to reciprocate the dead bolt 203 to a locked position and an open position. A dead bolt cam 219 rotating about a predetermined angle with the shaft 221 as a shaft, a latch link 237 for reciprocating the latch 241 to a locked position and an open position, a latch link 237, It is integrally coupled to the latch release shaft 229 to operate the dead bolt cam 219 to move the latch link 237 to the open position when the latch release shaft is rotated in the first direction (clockwise in Figure 3), And an actuating means for moving the dead bolt cam 219 to the locked position when the latch release shaft 229 is rotated in the second direction (counterclockwise in FIG. 3).

The actuating means is integrally coupled to the latch release shaft 229 to be rotated, and the first cam portions 233 and 234 are formed between the latch links 237 and the second cam portion between the dead bolt cams 219. 231 is formed, including a bi-function cam 230 is formed.

The actuating means is provided with a shaft spring 250 to always return to a predetermined position after the two-function cam 230 is rotated by the door handle.

As shown in FIGS. 9 and 10, the shaft spring 250 extends both ends of the cylindrical coil spring by a predetermined length to form a first end 253 and a second end 255.

This shaft spring 250 is installed around the connecting structure of the latch release shaft 229, as shown in Figure 8, the first end 253 is caught in the locking projection 257 formed in the case 201 in the clockwise direction Is not rotated, the second end 255 is installed to be prevented from rotating in the counterclockwise direction caught by the locking projection (257). Here, in the installed state as shown, the force of the first end is turned clockwise and the second end is turned counterclockwise. A spring hook 232 is formed between the first end portion 253 and the second end portion 255 in the two-function cam 230 installed to rotate integrally with the latch release shaft 229. When the function cam is rotated in the clockwise direction, the second end portion 255 is rotated in the clockwise direction together with both function cams, and the first end portion 253 is caught by the locking protrusion 257 and cannot rotate. Therefore, when the handle is turned and then released, the latch release shaft and the handle integrated with the two-function cam are returned to their original positions by the shaft spring force. Therefore, the handle is always forced to return to its original position by the shaft spring and the latch spring.

The latch link 237 is rotated around the latch link shaft pin 238, and a third cam portion 235 is formed between the latch link pin 238 so that the latch release shaft 229 moves in the first direction. When rotated in the clockwise direction, the first cam part 233 and the third cam part 235 act to move the latch 241 to the open position, and the latch spring 245 when the latch release shaft 229 is returned to its original position. As a result, both the latch 241 and the latch link 237 are returned to their original positions.

The latch spring 245 is a spring in the form of a coil, which is installed in the latch housing 247, and always applies a force for pushing the latch 241 to the locked position.

As shown in FIGS. 7 and 8, the latch release shaft 229 includes a first hub 129-1 coupled to an inner door handle shaft 167 coupled to a handle 165 installed inside the door, and an outside of the door. It consists of a second hub 129-2 coupled to the outer door handle shaft 168 coupled to a handle (not shown) installed in the. The cylindrical portion 129-3 and the cylindrical groove 129-4 are coupled so that the first hub and the second hub are rotatably coupled with one axis as the rotation center, and the shaft is disposed between the first hub and the second hub. The spring 250 is installed. Square grooves are formed in the first hub and the second hub so that the rectangular inner door handle shaft 167 is coupled to the groove of the first hub 129-1, and the outer door handle shaft 168 is the second hub. Is coupled to the groove of 129-2. These axes and grooves are designed to coincide with the axes of the cylindrical portion 129-3 and the cylindrical groove 129-4.

The latch release shaft 229 configured as described above rotates the first hub and the second hub independently of each other. That is, turning the inner handle of the door rotates only the first hub, and turning the outer door handle rotates only the second hub.

As shown in FIG. 7, the inner door handle shaft 167 rotates the key lever shaft 121 having the dead bolt cam 219 integrally rotated in the direction in which the dead bolt cam 119 opens. , 160, 163 are additionally installed.

The inner cam mechanism includes an inner cam 163 coupled to the inner door handle shaft 167, a triangular cam 160 integrally coupled to the key lever shaft 121, and a triangular cam 160 between the inner cam. An internal operating piece 150 for interlocking 163 is provided.

Guide pins 157 and 158 are formed in the inner working piece 150, and the guide pins are inserted into the guide holes 155 and 156 formed in a case (not shown) and moved while being guided. At this time, the guide pin and the guide groove may be formed on each other.

When the inner door handle 165 is rotated in the first direction to release the latch 141, the latch 141 and the dead bolt 103 are opened at the same time, and the inner door handle 165 is rotated in the second direction to lock the dead bolt. When the key lever shaft 121 is rotated, the dead bolt 103 is locked.

The operation of the lock device configured as described above is as follows.

When the dead bolt is to be locked in the door, the inner door knob 165 may be turned counterclockwise. That is, when the handle 165 is rotated in the second direction, as shown in FIG. 5, the two-function cam 230 rotates counterclockwise, and the second cam part 231 acts to rotate the dead bolt cam 219. Then, the dead bolt cam pushes the first dead bolt plate pin 213 to move the dead bolt 203 to the locked position, and the first dead bolt plate pin 213 is the groove portion 212 of the dead bolt cam 219. The dead bolt cam is kept locked because the position fixing spring 211 is pushed in.

If you want to open the dead bolt and latch inside the door, simply turn the inner door knob 165 clockwise. That is, when the handle 165 is rotated in the first direction, as shown in FIG. 4, the first hub of the two-function cam 230 is rotated in the clockwise direction, and the first cam part acts to counterclockwise the latch rank 237. And a third cam portion 235 formed on the pin 236 formed on the latch plate 239 to move the latch 241 to the open position, and the handle 165 rotates in the first direction. The inner cam mechanism is operated to rotate the key lever shaft 121 clockwise to move the dead bolt cam to the open position. That is, the inner cam 163 coupled to the inner door handle shaft 167 pushes the inner working piece 150 and interlocks the triangular cam 160 to rotate the key lever shaft 121 clockwise. Then, the dead bolt cam pushes the second dead bolt plate pin 215 by cam action so that the dead bolt is moved to the open position, and the second dead bolt plate pin 215 is the groove portion 214 of the dead bolt cam 219. Dead bolt cam remains open because the position fixing spring 211 is being pushed

If you open the door and go out and try to lock the dead bolt from the outside, turn the outer door knob (not shown) in the second direction. That is, when the external handle is rotated in the second direction, as shown in FIG. 5, the second hub of the two-function cam 230 is rotated counterclockwise, and the second cam part acts to counteract the dead bolt cam 219 in the counterclockwise direction. Then, the dead bolt cam pushes the first dead bolt plate pin 213 to move the dead bolt to the locked position, and the first dead bolt plate pin 213 is also the groove 212 of the dead bolt cam 219. Dead bolt cam is kept locked because the position fixing spring 211 is being pushed.

If you try to open the lock outside the door, you have to use the key to rotate the key lever shaft and then turn the handle to open it. When the key lever shaft 221 is rotated, the dead bolt cam is rotated and moved to the open position as described above. When the door handle knob is rotated from the outside, that is, when the door handle is rotated in the first direction, the outer door handle shaft rotates only the second hub, so only the latch lever shaft is rotated to move the latch to the open position, and the handle is released to its original position.

In the above description, it is assumed that the inside and outside of the door for convenience and described as the opening direction of the first direction, the locking direction of the second direction, but this is naturally changed according to the circumstances of the door in which the locking device of the present invention is used. Can be.

The mortise lock locking device of the present invention described above can simultaneously open and lock the dead bolt and the latch with a single handle operation.

In addition, even in a limited and standard space, the elements for driving the latch and the dead bolt are arranged to operate reliably, thereby improving reliability.

In addition, the handle for locking the door is not simply installed and used as a latch release, so the operation is simple and simple. In particular, when the door is opened from the inside of the door, the handle is opened only once.

In addition, the door handle is always forced to the home position by the shaft spring and the latch spring, so that the handle does not sag.

Claims (8)

In the mortise lock with latch and deadbolt, A key lever shaft; It has a different shaft center from the key lever shaft, and combines the inner door handle shaft inside the door and the outer door handle shaft outside the door into one shaft center, but the inner door handle shaft and the outer door handle shaft rotate independently. Unlatch shafts, A dead bolt cam integrally coupled with the key lever shaft to move the dead bolt to the locked position and the open position; A latch link for reciprocating the latch to the locked position and the open position; And an actuating means having a two-function cam coupled to the latch release shaft integrally, the first cam portion being formed between the latch link, and the second cam portion being formed between the dead bolt cam. Mortis lock closure. delete The method of claim 1, wherein the operating means, And a position fixing spring for returning to the predetermined position at all times after the two-function cam is rotated by the latch release shaft. The method of claim 1, The latch link is rotated about the latch link shaft pin, the third cam portion is formed between the latch plate pin, When the latch release shaft is rotated in the first direction, the first cam portion and the third cam portion act to move the latch to the open position.When the latch release shaft is returned to its original position, the latch and the latch link are both returned to their original position by the latch spring. Lock lock. 5. The mortise lock lock according to claim 4, wherein the latch spring is installed in the latch housing so that the latch is always forced in the locking direction. 1. The latch release shaft according to any one of claims 3 to 5, wherein A first hub coupled to the inner door handle shaft coupled to the door handle installed inside the door; A second hub coupled to an outer door handle shaft coupled to a handle installed outside the door, The first hub and the second hub has a cylindrical portion and the cylindrical groove is alternatively formed so that the first hub and the second hub is coupled to rotate independently of each other with one axis of rotation, And the second hub is rotated by an external door handle, and the first hub is configured to rotate only by an internal door handle shaft. The method of claim 6, Mortis lock locking device characterized in that the inner cam handle is further installed on the inner door handle shaft to rotate the key lever shaft. The method of claim 7, wherein the internal cam mechanism, An internal cam coupled to the inner door handle shaft, A triangular cam integrally coupled to the key lever shaft, With an inner operation piece for transmitting the rotational force of the inner cam to the triangular cam, Mortise lock is characterized in that the latch and the dead bolt are opened simultaneously when the inner door handle is rotated in the first direction to release the latch, and the dead bolt is locked by turning the key lever shaft when the inner door handle is rotated in the second direction to lock the dead bolt. lock.

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