KR100361338B1 - A mortise locking device - Google Patents

Abstract

The present invention relates to a mortise locking device, and more particularly, in order to unlock the locked latch and the dead bolt, the inconvenience of conventionally operating the latch adjusting means and the dead bolt rotating means to unlock the latch and the dead bolt, respectively. As such, in the present invention, the locked latch and the dead bolt are unlocked by the operation of the latch adjusting means.

Accordingly, the present invention provides a mortise locking device having a double locking structure by a latch and a dead bolt, comprising: a door lock case, first and second latch links rotatably installed inside the door lock case, and first and second latch links. It is installed to be slidable in the locking direction or the unlocking direction in conjunction with the rotational movement so that the latch plate can be slid out of the case and the sliding bolt can be slid in the locking or unlocking direction according to the rotation direction of the dead bolt cam installed in the door lock case. Latch plate and dead bolt which are pushed in the unlocking direction while being moved up and down by a latch adjusting means such as a lever and a dead bolt plate for releasing the dead bolt to the outside of the case. A first raising and lowering sliding piece for moving the plate to an unlocking position, and a second latching ring To be provided to the second lifting sliding piece which moves a locking latch plate is moved to push the unlocking direction while lifting up and down movement by the latch control means such as a lever in the unlocked position.

Description

Mortisise locking device

The present invention relates to a mortise locking device, in particular, a mortise locking device capable of simultaneously moving a locked latch and a dead bolt to an unlocking position.

In general, most door locks have latches that are locked and unlocked by a rotation mechanism of a lever such as a lever, and the latch mechanisms of the latches to prevent instability of locking by the latches. A mortise locking device having a double locking structure by a latch and a dead bolt is used by installing a dead bolt that is locked and unlocked by a knob or grip having a separate rotation mechanism.

1 is a schematic diagram for explaining such a conventional mortise locking device.

Referring to this, the conventional mortise locking device is configured to lock and unlock while the latch 31 and the dead bolt 21 selectively protrude from the inside of the door lock case 10 to the outside.

The locking and unlocking position movement of the latch and the dead bolt will be described below.

First, the latch 31 moves when the latch link rotating means 34 such as a lever moves the lifting sliding piece 40 upward in the arrow direction, and the lifting sliding piece 40 is latched by the latch link fixing pin 33. Rotate the link 32.

The inclined surface 32-1 of the latch link 32 that rotates is fixed to the latch plate 30 and is connected to the latch guide pin 35 which is moved left and right along the guide pin moving hole 36.

Then, the latch guide pin 35 is moved on the inclined surface 32-1 to pull the latch plate 30 into the door lock case 10 to move the latch 31 in the locked position to the unlocked position. .

In addition, when the dead bolt cam rotation means 25 (indicated by a dotted line) rotates the dead bolt cam 22 at a predetermined angle, the dead bolt plate 20 is moved by the elastic restoring force of the cam spring 26. The dead bolt 21 is moved to the locking or unlocking position while being selectively connected to the cam faces 22-1 and 22-2 of the dead bolt cam between the cam limit pins 23 and 24 installed at

In such a mortise locking device, the latch and the dead bolt are converted to the unlocked position at the locked position, respectively, by separate rotating means.

That is, the locked latch is unlocked while the lifting sliding piece is moved by a latch adjusting means such as a lever, and the locked dead bolt is unlocked while the dead bolt cam is rotated by a dead bolt rotating means such as a grip or a knob. When the user wants to go out from the inside of the space where the door is installed, the user operates the latch adjusting means and the dead bolt rotating means having different rotation mechanisms, respectively, if the latch and the dead bolt are locked. There is a hassle in use that needs to go out after unlocking and then unlocking the latch.

In addition, when the dead bolt cam is rotated by an angle, the dead bolt is rotated by the elastic restoring force of the cam spring to unlock the dead bolt. When the elastic restoring force of the cam spring is reduced or when the locked dead bolt is engaged with the door, only the elastic restoring force of the cam spring is There is a problem that the dead bolt can not be unlocked.

Accordingly, the present invention improves the hassle in use by the dead bolt cam rotation means by the operation of the latch adjusting means for unlocking the locked latch to improve the hassle in use, forcibly unlocking the locked dead bolt The purpose of the present invention is to provide a mortise locking device.

Therefore, in order to achieve the above object, the present invention provides a mortise locking device having a double locking structure by a latch and a dead bolt, comprising: a door lock case, first and second latch links installed rotatably in the door lock case; In accordance with the rotational movement of the first and second latch link, the latch plate is slidably installed in the locking direction or the unlocking direction to lock the latch out of the case, and the locking bolt is installed according to the rotation direction of the dead bolt cam installed in the door lock case. It is installed so as to slide in the unlocking direction, and the dead bolt plate which floats the dead bolt to the outside of the case, and the first latch link and the dead bolt cam by pushing the lever in the unlocking direction while moving up and down by a latch adjusting means such as a lever. First elevation to move the locked latch plate and dead bolt plate to the unlocked position And a second lifting and lowering sliding piece for moving the locked latch plate to the unlocking position by pushing and sliding the second latching link up and down by a latch adjusting means such as a lever.

Here, the first lifting sliding piece forms a cam surface on the dead bolt cam, and when the dead bolt cam rotates in the forward direction, a cam restoring pin is formed at the upper end, and the lower portion is formed on the lower side of the first latch link. Make connections with each other.

The first and second latch links are positioned on both upper and lower sides of the latch plate, one end of which is fixed to the door lock case by a link fixing pin, and the other end of which has an inclined surface connected to the latch guide pins installed on the latch plate. To do that.

In addition, a second link surface which forms a dead bolt link restoring pin on the first elevating sliding piece, has a first link surface which is in contact with the dead bolt link restoring pin, and is interconnected with a link limit pin installed on the dead bolt plate. By installing a dead bolt link having a dead bolt link restoring pin of the first lifting sliding piece to push the first link surface so that the second link surface and the link limit pin is connected to each other.

1 is a simplified configuration diagram for explaining a conventional mortise locking device.

2 is an exploded perspective view of the mortise locking device of the present invention.

Figure 3 is a schematic view of the case lid is removed to explain the mortise locking device of the present invention.

4 is a view for explaining a state in which the latch is locked in the mortis locking device of the present invention.

5 is a view for explaining a state in which the locked latch is unlocked in the Mortis locking device of the present invention.

6 is a view for explaining a state in which the latch and the dead bolt is locked in the mortis locking device of the present invention.

7 is a view for explaining that only the latch in the latch and the dead bolt locked in the mortis locking device of the present invention.

8 is a view for explaining a state in which the latch and the dead bolt unlocked in the mortis locking device of the present invention.

■ Brief description of the main parts of the drawing ■

▶ Conventional

10 door lock case 20 dead bolt plate

21: Dead Bolt 22: Dead Bolt Cam

23, 24: cam limit pin 25: cam rotation means

26: cam spring 30: latch plate

31: Latch 32: Latch Link

33: latch link fixing pin 34: latch link rotation means

35: latch guide pin 36: guide pin moving hole

40: lifting and sliding

▶ The present invention

100: door lock case 120: dead bolt plate

121: Dead Bolt 122: Dead Bolt Link

123: dead bolt link fixing pin 124: dead bolt cam

125,126: cam limit pin 127: cam spring

128: Cam spring fixing pin 129: Dead bolt link limit pin

130: latch plate 131: latch

132: latch guide pin 133: guide ball

134: latch spring 135: latch spring fixing pin

140,141: first and second latch link 142: latch link fixing pin

150,154: lifting sliding piece 151,155: sliding piece guide pin

152156: Sliding piece guide ball 153: Cam restoring pin

157: dead bolt link recovery pin 160: latch link rotation means

170: dead bolt cam rotation means

Hereinafter, with reference to the accompanying drawings illustrating a mortis locking device of the present invention.

2 is an exploded perspective view of the mortise locking device of the present invention, Figure 3 is a schematic configuration for explaining the configuration of the mortise locking device of the present invention.

3, the case lid 100-2 is removed, and the second sliding piece 154 and the second latch link 141 are formed of the first sliding piece 150 and the first sliding piece. It is a state in which it is hidden by the latch link 140.

The arrow ↑ indicates an operation direction when the latch link rotation means 160 rotates.

Referring to this, the mortise locking device of the present invention is largely installed in the door lock case 100, the door lock case 100 and the latch plate 130 and the dead bolt plate which is selectively mounted on the outside of the case and slid to lock or unlock. And a plurality of lifting and sliding pieces 150 and 154 for unlocking the locked latch plate and the dead bolt plate while lifting and lowering them.

In more detail, the door lock case is made of a case body 100-1 and a case lid 100-2 covering the case body, and forms a concave hole 101 on one side of the case body to latch 131. The dead bolt 121 is to be protruded through the hole to the outside of the case body.

In addition, the latch plate 130 has a latch 131 protruding to the outside of the case body through the concave hole 101 on one side, and is moved along the guide hole 133 of the case body on the other side, while sliding the left and right of the latch plate. The latch guide pin 132 is formed to guide.

In addition, a first latch link 140 having an inclined surface 140-1 connected to the latch guide pin 132 on the upper surface of the latch plate 130, and fixed and rotated by the latch link fixing pin 142 is rotated. Is installed.

Here, the second latch link 141 having the same shape as the first latch link 140 is connected to the latch guide pin 132 as a lower surface of the latch plate 130.

In addition, the latch spring 134 that is installed on the latch spring fixing pin 142 is supported on the rear of the latch 131 so that the latch plate 130 is always protruded out of the case body by the elastic restoring force of the latch spring to maintain the locked state. Let's do it.

In addition, the dead bolt plate 120 has a dead bolt 121 protruding to the outside of the case body 100-1 through the indentation hole 101 on one side thereof, and the dead bolt link fixing pin 123 on the other side thereof. A link limit pin 129 is rotatably fixed and connected to the dead bolt link 122 for forcibly unlocking the dead bolt plate 120.

The dead bolt link 122 has a first link surface 122-1 which is in contact with the link limit pin 129, and has a protruding second link surface 122-2.

In addition, the dead bolt plate 120 is provided with first and second cam limit pins 125 and 126 at predetermined intervals between left and right, and dead bolt rotation means such as knobs and grips between the first and second cam limit pins. Dotted line: 170, the dead bolt cam 124 to rotate in the locking or unlocking direction and selectively connected to the first and second cam limit pins to slide the dead bolt plate 120 to the locking or unlocking position. This is installed.

The dead bolt cam 124 is provided with a first cam surface 124-1 engaging with the first cam limit pin 125 when rotating in the locking direction, and the second cam limit pin 126 when rotating in the unlocking direction. The second cam surface 124-2 is formed to be in contact with. The third cam surface 124-3 is formed below the first cam surface 124-1.

In addition, the dead bolt spring 127 is carried by the dead bolt spring fixing pin 128 is carried on the dead bolt cam 124.

The plurality of lifting sliding pieces are formed with guide pins 151 which are moved along the guide holes 152 formed in the case lid 100-2, and are lifted up and down by latch rotation means 160 such as a lever. The lower end portion 150-1 is connected to the latch link 140, and there is a first elevating sliding piece 150 for pushing and rotating the first latch link.

In addition, a guide pin 155 is formed to move along the guide hole 156 formed in the case body 100-1 at a position opposite to the first elevating sliding piece, and is formed by the latch rotation means 160 such as a lever. There is a second elevating sliding piece 154 which is connected to the second latch link 141 by the upper end portion 154-1 to move up and down to push and rotate the second latch link.

In addition, when the dead bolt cam 124 is rotated in the locking direction, the cam restoring pin 153 is formed at the upper end of the first elevating sliding piece 150 to interlock with the third cam surface 124-3 of the cam. A dead bolt link recovery pin 157 is formed to be in contact with the second link surface 122-2 of the bolt link 122.

Referring to the operation of the present invention mortis locking device having such a structure as follows.

First, reference is made to FIGS. 4 and 5. 4 and 5 are views for explaining the locking and unlocking of the latch in a state where the first sliding piece and the first latch link are not coupled.

As shown in FIG. 4, the dead bolt 121 is located inside the case body 100-1 and is in the unlocked state, and the latch 131 is disposed by the elastic restoring force of the latch spring 134 held therein. It protrudes outward and is locked.

Referring to FIG. 5 in this state, the unlocking of the latch 131 is performed by the latch link rotating means 160 such as a lever moving the second sliding piece 154 in the direction of the arrow ↑. 154 and the second latch link 141 is in contact with each other.

Then, the lower end portion of the second sliding piece 154 that is continuously raised rotates the second latch link 141 so that the latch guide pin 132 moves on the inclined surface 141-1, and thus the guide ball 133. To be moved along.

Accordingly, the latch plate 130 is slid by the rotational movement of the second latch link to unlock the latch 131 protruding out of the case body 100-1.

Then, the unlocked latch 131 is restored to the position where the latched latch spring 134 is locked again by the elastic restoring force, and the second latch link 141 is interlocked by the restoration of the latch 131 to restore the latched latch 131. Restored to position.

The locking of the dead bolt will be described with reference to FIG.

6 is a view showing a state in which the first sliding piece 150 and the first latch link 140 are coupled, and the second sliding piece and the second latch link are not visible.

Referring to this, when the dead bolt cam rotation means 170 such as a knob and grip rotates the dead bolt cam 124 in the locking direction, the second cam surface 124-2 is connected to the second cam limit pin 126. The dead bolt cam is rotated so that the first cam face 124-1 and the first cam limit pin 125 of the cam are connected.

In this state, the dead bolt cam 124 pushes the dead bolt plate 120 by the rotational force to protrude out of the case body 100-1 to lock the dead bolt cam 124.

When the dead bolt cam 124 is rotated in the locking direction, the third cam surface 124-3 of the dead bolt cam is in contact with the cam restoring pin 153 of the first sliding piece, and the cam spring 127 is compressed. .

In addition, the second link surface 122-2 of the dead bolt link 122 is in a state of being connected to the dead bolt link restoring pin 157 of the first sliding piece.

In addition, referring to FIG. 7, when the latch link rotating means 160 lifts the second lifting sliding piece 154 upward while the latch and the dead bolt are locked, only the latch 131 is unlocked.

That is, the second lifting sliding piece 154 indicated by the dashed-dotted line is the second latch by moving only the second latch link 141 having the inclined surface interconnected with the latch guide pin as described in FIGS. 4 and 5. The latch plate 130 locked by the link is moved to the unlocked position.

Referring to FIG. 8, the unlocking of the locked latch and the dead bolt is simultaneously performed by the lifting movement of the first lifting sliding piece 150.

This means that when the latch link rotating means 160 moves only the first elevating sliding piece 150 in the direction of the arrow, the latch 131 and the dead bolt 121 interlock with the elevating of the first elevating sliding piece 150. Is unlocked.

First, the unlocking of the latch 131 rotates the first latch link 140 while the first elevating sliding piece 150 moves up, and the latch plate 130 is slid by the first latch link rotated. The latch 131 locked into the case body 100-1 is unlocked.

Then, the unlocking of the dead bolt 121 is the dead bolt cam 124 as the first lifting and sliding piece 150 having the cam restoring pin 153 interlocked with the third cam surface 124-3 of the dead bolt cam is lifted. ) By force and rotate in the unlocking direction.

At this time, when the dead bolt cam 124 is rotated by a predetermined angle, the dead bolt cam is quickly rotated by the elastic restoring force of the compressed cam spring 127, and the second cam surface 124-2 of the dead bolt cam and the dead bolt plate are formed. The two cam limit pins 126 are connected to each other.

In addition, the dead bolt link restoring pin 157 of the first lifting sliding piece pushes the second link surface 122-2 of the dead bolt link that is connected to the first link surface 122-1 of the dead bolt link to the link limit pin. The dead bolt plate 121 is forcibly unlocked while being interconnected with the 129.

Therefore, the dead bolt plate 120 is slid to the unlocked position by the lifting motion force of the first lifting sliding piece 150, the elastic restoring force of the cam spring 127, and the dead bolt link 122.

At this time, the second lifting sliding piece 154 and the second latch link 141 are not moved.

Therefore, when the latch link rotation means is operated from the outside of the door, the present inventors mortis locking device unlocks the locked latch 131 while only the second sliding piece 154 is lifted, and the locked dead bolt 121 is unlocked. Will not be.

In addition, when the latch link rotation means is operated in the door, only the first sliding piece 150 is lifted to simultaneously unlock the locked latch 131 and the dead bolt 121.

As described above, the Mortis locking device of the present invention, when the latch adjusting means lifts the first lifting sliding piece, the first latch link rotates in rotation to unlock the locked latch, and the cam of the first lifting sliding piece The recovery pin rotates the dead bolt cam to unlock the locked dead bolt, thereby enabling the unlocking of the locked latch and the dead bolt by one operation of the latch link rotating means, thereby increasing the ease of use of the door lock.

In addition, the unlocking of the dead bolts can stably unlock the dead bolts even if the elastic restoring force of the cam restoring pin is lowered by the dead bolt link restoring pin of the first lifting sliding piece forcibly pushing the dead bolt link.

Claims (4)

A mortise locking device having a double locking structure in which a latch and a dead bolt are inserted into and out of a door lock case to unlock and lock a door; A first latch link installed at one end of the door lock case to be rotated to face an upper side of the second latch link installed at the inside of the door lock case; A latch plate which slides in the locking direction or the unlocking direction according to the rotation of the first and second latch links to enter and exit the latch into and out of the door lock case; A dead bolt plate which slides in the locking or unlocking direction according to the rotational direction of the dead bolt cam installed in the door lock case to allow the dead bolt to enter and exit the door lock case; A second elevating sliding piece for moving the latch plate so that the latch in the locked state is unlocked by rotating the second link connected to the upper end while being elevated upward by the latch adjusting means such as a lever; The latch and the dead bolt in the locked state are installed on the door lock case cover facing the second lifting sliding piece, and the first latch link and the dead bolt cam connected to the lower end while being elevated upward by a latch adjusting means such as a lever are rotated. Mortis locking device comprising a first lifting and lowering sliding piece for moving the latch plate and the dead bolt plate to be in the unlocked state. The method according to claim 1, The first lifting sliding piece forms a cam surface on the dead bolt cam, When the dead bolt cam rotates in the forward direction, a cam restoration pin is formed at the upper end, which is in contact with the cam surface. Mortis locking device, characterized in that the lower end is in contact with the lower side of the first latch link. The method according to claim 1, The first and second latch links are located on both sides of the latch plate, One end is fixed to the door lock case with a link fixing pin, The other end of the Mortis locking device characterized in that it has an inclined surface mutually connected with the latch guide pin installed on the latch plate. The method according to claim 2, Forming a dead bolt link restoring pin on the first elevating sliding piece; A dead bolt link having a first link surface connected to the dead bolt link restoring pin and having a second link surface interconnected to a link limit pin installed on the dead bolt plate; The dead bolt link restoring pin of the first lifting sliding piece pushes the first link surface so that the second link surface and the link limit pin are connected to each other.