KR20040085354A - Locking device of motise lock - Google Patents

Abstract

PURPOSE: A locking device of a mortise lock is provided to improve reliability of the locking device by reliably operating a latch and a dead bolt within a confined space, and to simplify the locking device by using a grip of a door in order to release the latch. CONSTITUTION: A locking device of a mortise lock includes a dead bolt cam(119), a latch link(137), and a latch link and dead bolt cam(119) operating unit. The dead bolt cam(119) rotates by a predetermined angle on the basis of a key lever shaft in order to move a dead bolt between a locking position and an opening position. The latch link(137) moves a latch between the locking position and the opening position. The latch link and dead bolt cam(119) operating unit is integrated with a latch releasing shaft in order to operate the latch link and the dead bolt cam(119). The latch link and dead bolt cam(119) moves the latch link to the opening position if the latch releasing shaft rotates in a first direction and the dead bolt cam(119) to the locking position if the latch releasing shaft rotates in a second direction.

Description

Locking device of motise lock

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. 1, the dead bolt 21 and the latch 22 are slidably coupled to the inside and the inside of the case 20 through the protrusions of the case, and the dead bolt 21 has a predetermined distance back and forth to the rear side. 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. The dead bolt 21 rotates the key lever 28 by operating the dead bolt driving means from the outside, and the dead bolt cam 29 rotates, and the dead bolt 21 slides in the locking or unlocking direction. .

And, as shown in Figure 2, when looking at the side of the general mortise lock locking device, 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.

An object of the present invention is a mortise lock device having a latch and a dead bolt, when the inner door handle is rotated in the first direction (clockwise), the latch and the dead bolt are opened simultaneously, and the inner door handle is in the second direction (counterclockwise). It is intended to provide a mortise lock that will lock the dead bolt when turned to.

An object of the present invention is to open the latch only when the outer door handle is rotated in the first direction and the dead bolt can be opened only when the key lever shaft is rotated using a key, and the dead bolt can be locked by rotating the outer door handle in the second direction. To provide a Mortis lock lock.

The present invention for achieving the object of the present invention is a dead bolt cam rotated by a predetermined angle with respect to the key lever shaft to reciprocate the dead bolt to the locked position and the open position, and the latch reciprocated to the locked position and the open position Integrally coupled to the latch link for movement and the latch release shaft for actuating the latch link and the dead bolt cam to move the latch link to the open position when the latch release shaft rotates in the first direction, and release the latch. And an actuating means for moving the dead bolt cam to the locked position when the shaft is rotated in the second direction.

The actuating means is integrally coupled to the dead bolt cam operating piece and the latch release shaft to rotate the dead bolt cam in a direction in which the dead bolt is locked when the door handle rotates in the second direction, and rotates between the latch link and the latch link. A first cam portion is formed, and includes a two-function cam having a second cam portion formed between the dead bolt cam operation piece.

When the dead bolt operating piece is moved by the dead bolt cam operating piece and the second cam portion formed on both function cams, a third cam portion for rotating the dead bolt in the locking direction is disposed between the dead bolt cam and the dead bolt cam operating piece. It is formed in, and the dead bolt cam working piece is configured so that the dead bolt is not in the original position even after the dead bolt is rotated to the locked position by the spring force.

The dead bolt cam operating piece is moved by a predetermined distance while being guided by the guide groove and the guide pin between the case.

The latch rank is rotated around the latch link shaft pin, and the fourth cam portion is formed between the pin formed on the latch plate. When the latch release shaft rotates in the first direction, the first cam portion and the fourth cam portion act as When the latch is moved to the open position and the latch release shaft is returned to its original position, both the latch and the latch link are returned to their original position by the latch spring.

The inner cam mechanism is an internal cam of the same type as the two-function cam coupled to the inner door handle shaft, a triangular cam integrally coupled to the key lever shaft, and a dead bolt operation for interlocking between the triangular cam and the inner cam. With the inner working piece of the same type, 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 key lever when the inner door handle is rotated in the second direction to lock the dead bolt. The dead bolt is locked by rotating the shaft.

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 perspective 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.

* 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

101: Mortis Lock Case 103: Dead Bolt

105: dead bolt plate 107: dead bolt guide pin

106: latch spring fixing pin 109: dead bolt cam operating plate spring

113, 115: dead bolt plate pin 119: dead bolt cam

121: key lever shaft 123: dead bolt operating plate

130: both function cam 129: latch release shaft

137: latch link 133: latch driving pin

139: latch plate 141: latch

145: latch spring 160; Triangle cam

150: internal operation 163: internal cam

165: inside door handle

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 device having a latch 141 and a dead bolt 103, wherein the key lever is used to reciprocate the dead bolt 103 to a locked position and an open position. A dead bolt cam 119 rotating about a predetermined angle with the shaft 121 as an axis, a latch link 137 for reciprocating the latch 141 to a locked position and an open position, a latch link 137, In order to operate the dead bolt cam 119 is integrally coupled to the latch release shaft 129 to move the latch link 137 to the open position when the latch release shaft is rotated in the first direction (clockwise in Figure 3), It includes the operating means for moving the dead bolt cam 119 to the locked position when the latch release shaft 129 is rotated in the second direction (clockwise in Figure 3).

The actuating means includes a dead bolt cam operation piece 123 for rotating the dead bolt cam 119 in a direction in which the dead bolt 103 is locked when the door handle (see 165 of FIG. 7) is rotated in the second direction, and the latch release shaft. 129 is integrally coupled and rotated, the first cam portion 131 is formed between the latch link 137, and the second cam portion 127 is formed between the dead bolt cam operation piece 123 and It is made, including the two-function cam 130.

When the dead bolt cam operation piece 123 is moved by the two-function cam, a third cam portion 124 is formed between the dead bolt cam and the dead bolt cam operation piece to rotate the dead bolt 103 in the locking direction.

Even after the dead bolt cam operation piece 123 rotates the dead bolt 103 to the locked position, the dead bolt 103 cannot be returned to its original position by the force of the spring 109. The dead bolt cam does not move because the first dead bolt plate pin 113 formed at the dead bolt plate 105 is coupled to the groove 112 of the dead bolt cam 119 and the position fixing spring 111 is pushed. I can't.

The dead bolt cam operation piece 123 is formed with a guide pin (110, 125), the guide pin is inserted into the guide grooves (122, 126) formed in the case 101 while being guided by a predetermined distance (that is, By length). This groove is shown as a straight groove but may be curved.

The latch link 137 is rotated around the latch link shaft pin 135, and a fourth cam portion 138 is formed between the latch link 137 and the pin 133 formed on the latch plate 139. Thus, when the latch release shaft 129 is rotated in the first direction (clockwise), the first cam portions 131 and 132 and the fourth cam portions 133 and 138 act to move the latch 141 to the open position. When the release shaft 129 is in the original position, the latch spring 106 is configured such that both the latch 141 and the latch link 137 are in the original position.

As shown in FIGS. 7 and 8, the latch release shaft 129 is coupled to an inner door handle shaft 167 coupled to a handle 165 installed inside the door. And a second hub coupled to the outer door handle shaft 168 coupled to a handle (not shown) installed outside the door. 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. 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 and the outer door handle shaft 168 is coupled to the groove of the second hub. . These axes and grooves are designed to coincide with the axes of the cylindrical portions 129-30 and the cylindrical grooves 129-4.

The latch release shaft 129 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 to which the dead bolt cam 119 is 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 9160 and the inner cam ( 163 is provided with an inner working piece 150 for interlocking.

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.

Referring to the operation of the present invention having such a configuration 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 130 is rotated in the counterclockwise direction, and the second and third cam portions act to raise the dead bolt cam operation piece 123. While rotating the dead bolt cam 119 (in addition to the preferred embodiment, although not shown in Figure 7 the inner cam 163 also rotates the triangular cam 160 counterclockwise). Then, the dead bolt cam pushes the first dead bolt pin 113 by the cam action to move the dead bolt to the locked position, and the first dead bolt plate pin 113 is coupled to the groove 112 of the dead bolt cam 119. And the dead bolt cam is kept locked because the position fixing spring 111 is being pushed.

To open the dead bolt and latch inside the door, simply rotate the inner door handle 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 130 is rotated in the clockwise direction, and the first cam part acts to counterclockwise the latch rank 137. And the fourth cam portion 138 formed on the pin 133 formed on the latch plate 139 acts to move the latch 141 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. At this time, 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 115 by the cam action to move the dead bolt to the open position, and the second dead bolt plate pin 115 is the groove portion 114 of the dead bolt cam 119. Dead bolt cam is kept open because the position fixing spring 111 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 130 is rotated in the counterclockwise direction, and the second and third cam portions act to operate the dead bolt cam operation piece 123. Rotates the dead bolt cam 119 counterclockwise as it rises, and then the dead bolt cam pushes the first dead bolt pin 113 to move the dead bolt to the locked position, and also the first dead bolt plate pin 113. ) Is coupled to the groove 112 of the dead bolt cam 119 and the dead bolt cam is kept locked because the position fixing spring 111 is pushed.

If you try to open the lock outside the door, you have to use the key to rotate the key lever shaft. When the key lever shaft 121 is rotated, the dead bolt cam is 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 key lever shaft cannot move because the external door handle shaft rotates only the second hub, but only the latch lever shaft is rotated to move the latch to the open position. And release the handle to return to the 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 does not need to be installed separately, and thus used as a latch release for simple and simple operation. Especially, when the door is opened inside the door, the handle is opened only once, so it is very convenient.

Claims (8)

In the mortise lock with latch and deadbolt, A dead bolt cam rotating by a predetermined angle with respect to 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; It is integrally coupled to the latch release shaft to operate the latch link and the dead bolt cam so that the latch link moves to the open position when the latch release shaft rotates in the first direction, and the latch release shaft rotates in the second direction. Mortis lock locking device characterized in that it comprises an operating means for moving the dead bolt cam to the locked position. The method of claim 1, wherein the operating means, A dead bolt cam operating piece for rotating the dead bolt cam in a direction in which the dead bolt is locked when the door handle is rotated in the second direction; And a bi-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 operating piece. Phosphorus moulding device. The method of claim 2, When the dead bolt operating piece is moved by the second cam portion formed on the dead bolt cam operating piece and the two-function cam, a third cam portion for rotating the dead bolt in the locking direction, the dead bolt cam and the dead bolt cam operating piece Formed between, Mortis lock locking device characterized in that the dead bolt cam operation piece is configured so that the dead bolt is not in the original position even after the dead bolt is rotated to the locked position by the spring force. The method of claim 3, wherein The dead bolt cam operating piece is moisturized lock device characterized in that the guide groove and the guide pin between the case and moved by a predetermined distance. The method of claim 3, wherein The latch rank is rotated about the latch link shaft pin, the fourth cam portion is formed between the pin formed on the latch plate, When the latch release shaft is rotated in the first direction, the first cam portion and the fourth cam portion act to move the latch to the open position. Rock lock. The latch release shaft according to any one of claims 1 to 5, 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, A cylindrical portion and a cylindrical groove are selectively formed in the first hub and the second hub so that the first hub and the second hub are rotatably coupled to each other with one axis as the center of rotation. And the first hub is not rotated even when the second hub is rotated by an external door handle. The method of claim 6, Mortis lock lock device characterized in that the inner cam mechanism 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, Mortis lock, 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 rotating the key lever shaft when the inner door handle is rotated in the second direction to lock the dead bolt. Locking device.