JP2834115B1 - Automatic locking type lock device - Google Patents

Abstract

To provide an automatic unlocking device that can easily and accurately perform an adjustment operation when a failure occurs, and that can securely unlock a sub door when a main door is opened. SOLUTION: A horizontal slider 7 and a vertical slider 13 are accommodated in a main body case 3, a detection roller 5 is provided at a front end of the horizontal slider 7, which is pressed against a side surface 4 a of a main door 1, and a reception roller is provided at a front end of the vertical slider 13. A locking roller 11 for engaging and disengaging the gold 9 is provided. The horizontal slider 7 and the vertical slider 13 are linked by a drive lever 31 and a link lever 25, and a first bearing block 16 having a fulcrum of the link lever 25, and a link lever. The second bearing block 20 having the fulcrum of 31 is advanced and retracted by the first adjustment bolt 15 and the second adjustment bolt 19, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an automatic lock type lock device in which a lock is automatically established at an end position of a door closing operation.

[0002]

2. Description of the Related Art In a fire door, in order to quickly respond to a fire emergency, the main door is unlocked and opened, and at the same time, the sub door is automatically unlocked. Part can be obtained. Further, at the end of the closing operation of the main door, the sub door is automatically locked to the fixed frame. In order to reliably perform automatic locking and unlocking of the sub-door and to enable a smooth opening operation of the sub-door, an opening edge portion between the main door and the sub-door, and between the sub-door and the fixed frame body. Adjustment of the gap between the frame or floor is properly set, the movement of the main door is accurately detected by the automatic lock type lock device on the sub door side, and
It is necessary that the upper edge and the lower edge of the sub door do not contact the frame and the floor.

In a conventional French drop-type self-locking lock device, since the lock device itself is not provided with an adjusting function, it is necessary to correctly select an initial mounting position with respect to the sub door. However, even if the initial installation is correct, if the frame structure of the main door and sub door is distorted, or if the hinge that hangs the sub door on the side pillar at the opening edge is deformed, the proper Since the gap is not ensured, the locking device does not normally work even when the main door is opened, and the locking of the sub door may not be reliably released. Even if such a defect is found during the periodic inspection, there is no adjustment function.Therefore, it is necessary to remove the entire device from the sub door, add an auxiliary pedestal plate, and reinstall it at the correct position. It takes a lot of time and effort and cost. In addition, the conventional self-locking type locking device is of the embedded mounting type on the premise that the main body case of the locking device is housed in the cavity between the front plate and the rear plate of the door. There is no particular problem as long as it is a new door that can be designed and processed relatively freely, but it can not be installed on existing doors that require large-scale renovation of doors It is.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automatic lock type locking device that can easily and accurately perform an adjustment operation when a malfunction occurs and that can securely unlock a sub door when a main door is opened. To provide. Further, an object of the present invention is that not only new doors but also existing doors can be easily installed without requiring large-scale renovation and modification work, and an automatic lock function can be added to various doors. It is an object of the present invention to provide a self-locking locking device which can be used.

[0005]

The self-locking lock device according to the present invention will be described with reference to the accompanying drawings. As shown in FIGS. 1 to 3, a main body case 3 and a horizontal slider 7 are provided. , Vertical slider 13, first bearing block 1
6. The second bearing block 20, the first adjustment bolt 15, the second adjustment bolt 19, the L-shaped interlock lever 25, and the drive lever 31 are main components. The main body case 3 is embedded and fixed in the side surface 2 a of the sub door 2 facing the side surface 1 a of the main door 1. The horizontal slider 7 is guided in the lateral direction toward the side surface 4a of the main door 1 so as to be able to advance and retreat in the left and right direction, is accommodated in the main body case 3, is urged forward by the projecting spring 4, and the front end portion 7b is Is pushed by the side surface portion 1a. The vertical slider 13 is guided inside the main body case 3 so as to be able to advance and retreat in the vertical direction toward the receiving portion 9 of the frame portion or the floor portion 8, and is housed in the main body case 3.

[0006] The first bearing block 16 is provided with a horizontal slider 7.
Is accommodated in the main body case 3 while being guided so as to be position-adjustable in the horizontal direction on the side of the vertical slider 13. The first adjustment bolt 15 passed through the through hole 14 of the side plate 3 a of the main body case 3 is screwed into the left-right lateral screw 38 of the first bearing block 16. The first bearing block 16 is held at a predetermined adjustment position by a first holding spring 17. The second bearing block 20 is accommodated in the main body case 3 while being guided so as to be position-adjustable in the horizontal direction on the opposite side of the vertical slider 13 with respect to the horizontal slider 7. The main body case 3 is inserted into the left and right lateral screw holes 41 of the second bearing block 20.
Adjustment bolt 1 passed through the through hole 18 of the side plate 3a
9 is screwed. The second bearing block 20 is held at a predetermined adjustment position by a second holding spring 21.

An interlocking lever 25 is pivotally connected to a base end 16a of the first bearing block 16 at an intermediate portion 25a by a horizontal shaft 22 in the front-rear direction. 13 base end 1
3a. The drive lever 31 is connected to the base end portion 7a of the horizontal slider 7 by the horizontal shaft 27 in the front-rear direction at the intermediate portion 31a. One end 3 of the drive lever 31
1b is pivotally attached to the front end 20b of the second bearing block 20 by a front-rear horizontal shaft 28. The other end 31c of the drive lever 31 is connected to the front end 25c of the other arm of the interlocking lever 25 in the front-rear direction. They are connected by a shaft 30.

According to a second aspect of the present invention, there is provided an automatic locking type locking device.
As shown in FIGS. 4 to 13, the main body case 103, the input slider 107, the output slider 113, the first bearing block 116, the second bearing block 120, the first adjustment bolt 115, the second adjustment bolt 119, and an L-shaped interlock. Lever 1
25 and the drive lever 131 are main components. The main body case 103 includes a front surface or a rear surface 102a of the door 102.
Sticks out. Another door 10 facing door 102
1 is provided on the front or rear surface 101a or the front or rear surface 108a of the opening edge of the fixed frame 108.
52 is projected and fixed. The input slider 107 is
The driving cam seat 152 guides the driving cam seat 152 so as to be able to advance and retreat, is housed in the main body case 103, is urged forward by the projecting spring 104, and pushes the front end 107 b by the driving cam seat 152 at the end of the closing operation of the door 102. . Either it is projected and fixed to the front or rear surface 108 a of the opening edge of the fixed frame 108, it is dug and fixed to the upper or lower surface 108 b of the opening edge of the fixed frame 8, or another door 1.
On the front surface 101 or the rear surface 101a, a receiving member 109 is projected and fixed.

The output slider 113 is guided in a manner capable of moving forward and backward toward the receiving money 109 and is housed in the main body case 103, and the front end 113 b engages with the receiving money 109. The first bearing block 116 is guided so as to be position-adjustable in the direction of movement of the input slider 107 on the side of the output slider 113 with respect to the input slider 107, and
And is fitted to the first adjustment bolt 115 passed through the through hole 114 of the side wall portion 103a of the main body case 103,
It is held at a predetermined adjustment position by the first holding spring 117. The second bearing block 120 is provided with the input slider 10.
7, the second adjustment bolt which is guided in the movement direction of the input slider 107 on the opposite side of the output slider 113 so as to be adjustable in position and is accommodated in the main body case 103 and passed through the through hole 118 of the side wall 103a of the main body case 103. 119, and is held at a predetermined adjustment position by the second holding spring 121.

The L-shaped interlocking lever 125 is
a, the first bearing block 116 has a pivot 1 in the front-rear direction.
22, and one arm distal end 125 b is connected to the proximal end 113 a of the output slider 113 by a shaft pin 124 in the front-rear direction. The drive lever 131 is connected to the base end 107a of the input slider 107 by a front-rear shaft pin 127 at the intermediate portion 131a, and is connected to the front end 120b of the second bearing block 120 at one end 131b by a front-rear pivot 128. At the other end 131c, it is pivotally connected to the other arm tip 125c of the interlocking lever 125 by a front-rear axis pin 130. The self-locking lock device according to the third aspect of the present invention has, in addition to the above-described configuration, an operation mechanism that allows the input slider 107 to protrude from the main body case 103 by displacing the drive cam seat 152 in the locked state.

According to the first aspect of the present invention, there is provided an automatic locking type locking device.
The upper and lower parts are turned upside down and assembled into a pair of upper and lower parts on the upper and lower parts of the sub door 2. FIGS. 1 to 3 show a case where the sub door 2 is incorporated in a lower part. When the main door 1 is closed and rotated about a hinge shaft (not shown) on the side opposite to the sub door 2, the side 1a of the main door 1 faces the side 2a of the sub door 2 in the closed position. I do. In this process, since the side surface portion 1a of the main door 1 pushes the tip portion 7b, the horizontal slider 7 retreats to the right in the drawing against the bias of the projecting spring 4. As the horizontal slider 7 retreats, the drive lever 31 pushed by the horizontal axis 27 rotates counterclockwise about the horizontal axis 28 as a fulcrum. With the rotation of the drive lever 31,
The interlocking lever 25 pushed by the horizontal axis 30 rotates clockwise about the horizontal axis 22 as a fulcrum. The vertical slider 13 pushed by the horizontal shaft 24 with the rotation of the interlocking lever 25 moves forward by a predetermined stroke from the main body case 3, and at the end of the forward movement, the front end portion 13 b enters the receiver 9 of the floor portion 8, and the sub door 2 is automatically locked in the closed position.

When the main door 1 is opened in an emergency such as a fire, the pushing of the front end portion 7b by the side surface portion 1a of the main door 1 is released.
With the urging force, the main body case 3 is advanced by a predetermined stroke. As the horizontal slider 7 advances, the drive lever 31 pushed by the horizontal axis 27 rotates clockwise about the horizontal axis 28 as a fulcrum. With the rotation of the drive lever 31,
The interlocking lever 25 pushed by the horizontal axis 30 rotates counterclockwise around the horizontal axis 22 as a fulcrum. With the rotation of the interlocking lever 25, the vertical slider 13 pushed by the horizontal axis 24
The distal end portion 13 b is retracted from the main body case 3 by a predetermined stroke, and the distal end portion 13 b is separated from the metal receiving 9 of the floor portion 8 at the retraction end. As a result, the lock of the sub door 2 with respect to the floor 8 is automatically released, and the sub door 2 is immediately opened when pressed from the front side.

According to a second aspect of the present invention, there is provided an automatic locking type locking device.
In the basic usage, the sub-door 2 is mounted on the upper and lower portions of the sub-door 2 with the top and bottom reversed. 11 to 1
Reference numeral 2 denotes a case where the main body case 103 is projected and fixed to the front surface at the lower part of the door 2. When another door 101 is closed and rotated about a hinge shaft 153 on the opposite side of the door 102, the door 10 is closed when the side portion 101a of the door 101 is in the closed position.
It faces the second side surface portion 102a. Door 1 in this process
01 drive cam seat 152 pushes the tip 107b,
The input slider 107 retreats to the right in the drawing against the bias of the projecting spring 104. This input slider 10
7, the drive lever 1 pushed by the shaft pin 127
Reference numeral 31 rotates counterclockwise around the pivot 128. With the rotation of the drive lever 131, the shaft pin 130
Is rotated clockwise about the pivot 122 as a fulcrum. With the rotation of the interlocking lever 125, the output slider 113 pushed by the shaft pin 124
Moves forward from the main body case 103 by a predetermined stroke,
At the forward end, the tip 113b enters the receiving piece 109,
Door 102 is automatically locked in the closed position.

When the other door 101 is opened in the event of an emergency such as a fire, the pushing of the front end 107 b of the door 101 by the driving cam seat 152 is released. Case 10
3 to advance by a predetermined stroke. As the input slider 107 advances, the drive lever 131 pushed by the shaft pin 127 rotates clockwise around the pivot 28. With the rotation of the drive lever 131, the shaft pin 30
Is rotated counterclockwise around the pivot 122 as a fulcrum. With the rotation of the interlock lever 125, the output slider 11 pushed by the shaft pin 124
3 retreats to the main body case 103 by a predetermined stroke,
At the retreating end, the distal end portion 113b separates from the receiver 9. As a result, the lock of the door 102 with respect to the fixed frame 108 is automatically released, and the door 1022 is immediately opened when pressed from the front side.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.
In one embodiment of the present invention, the detection roller 5 is pivotally attached to the tip 7b of the horizontal slider 7 by the vertical axis 6,
When the detection roller 5 comes into contact with the side surface 1a of the main door 1, the contact resistance is reduced and reduced. The locking roller 11 is also pivotally connected to the tip 13b of the vertical slider 13 by the horizontal shaft 12 in the left-right direction. The contact of the locking roller 11 with the receiving metal 9 reduces contact resistance. doing. Spring 4 for urging projection of horizontal slider 7
Is composed of a plurality of compression coil springs. One end of the spring is in contact with the inner bottom surface of the spring receiving recess 32 at the tip 7a of the horizontal slider 7, and the other end of the spring 4 is a thin box-shaped main body case. 3 is in contact with the other right side plate 3b. A retracting spring 10 is provided to urge the vertical slider 13 backward to the main body case 3. The retracting spring 10 formed by a torsion coil spring has a coil portion 10 a fitted on a spacer pin 33 of the main body case 3. One of the straight ends 10b is a spring receiving pin 34 fixed to the vertical slider 13.
, And the other straight end portion 10c is in contact with the reinforcing plate 35 of the left side plate portion 3a of the main body case 3. Note that the retracting spring of the vertical slider 13 can also be used as the projecting biasing spring 4 of the horizontal slider 7.

Spring 1 for holding position of first bearing block 16
7 is a compression coil spring, and the first bearing block 16
The first adjustment bolt 15 is fitted between the first adjustment bolt 15 and the reinforcing plate 35 of the main body case 3. The head portion 15a with the driver groove of the first adjusting bolt 15 is accommodated in the concave portion 36 of the reinforcing plate 35 of the main body case 3 and is exposed through the through hole 40a of the side cover plate 37. The screw shaft portion 15b of the first adjustment bolt 15 is screwed into a screw hole 38 at the base end of the first bearing block 16,
The rotation of the first bearing block 16 is stopped by the front plate 3c and the back plate 3d of the main body block 3. Therefore, the rotational movement of the first adjusting bolt 15 is converted into a linear movement of the first bearing block 16.

The spring for holding the position of the second bearing block 20 is also constituted by a compression coil spring, and is fitted to the second adjusting bolt 19 between the base end portion 20a of the second bearing block 10 and the reinforcing plate 35 of the main body case 3. Have been. Second adjustment bolt 19
The head 19 a with the driver groove is accommodated in the concave portion 39 of the reinforcing plate 35 of the main body case 3, and the through hole 4 of the side cover plate 37 is formed.
0b. Screw shaft part 1 of second adjustment bolt 19
9b is screwed into the screw hole 41 at the base end of the second bearing block 20, and rotation of the second bearing block 20 is stopped by the front plate 3c and the back plate 3d of the main body block 3. Therefore, the rotational movement of the second adjusting bolt 19 is converted into a linear movement of the second bearing block 20.

The vertical slider 13 has a majority part housed in a rectangular cylindrical auxiliary case 42 connected to a vertical extension of the main body case 3. The vertical slider 13 is vertically divided into two parts, and the upper slider part 13A and the lower slider part 13B have a center pin 43 and two transverse pins 44,
It is connected by 45. Since the upper transverse pin 44 passes through the vertically elongated slot 46 of the upper slider portion 13A, the lower slider portion 13B can play freely by a certain stroke in the vertical direction, and the upper slider portion 13A and the lower slider portion 13B Is inserted by fitting the compression coil spring 49 for biasing the separation to the center pin 43. By setting such a play interval, the locking roller 11 can easily move over the cushion member and the gasket member of the frame portion and the floor portion 8 when the sub door 2 is opened and closed. For this overcoming operation, the horizontal axis 12 which is the rotation center of the locking roller 11 is arranged in the left-right direction.

A reinforcing seat plate 47 having a U-shaped cross section is fitted into the reinforcing case 42, and regulates the vertical slider 13 so as to correctly advance and retreat from a predetermined position on the upper surface or the lower surface of the sub door 2. . The main body case 3 is fixed to the sub door 2 with screws (not shown) passing through two upper and lower through holes 48. The reinforcing case 42 is fixed to the sub-door 2 by screws (not shown) that pass through two left and right through holes 50 and screw holes 51. In the above embodiment, the linking slot 23 between the linking lever 25 and the vertical slider 13 is provided on the linking lever 25, but this slot may be provided on the vertical slider 13 side. The drive lever 31 is provided with a connection slot 26 for connecting the drive lever 31 and the horizontal slider 7, but this slot may be provided on the side of the horizontal slider 7. Further, although a linking slot 29 between the interlocking lever 25 and the drive lever 31 is provided in the interlocking lever 25,
This slot can also be provided in the drive lever 31.

In one embodiment of the invention according to claim 2 shown in FIGS. 4 to 12, the tip 107b of the input slider 107 is provided.
, A detection roller 105 is pivotally mounted on a pivot 106 so that the detection roller 105 comes into contact with the drive cam seat 152 of another door 101 to reduce and reduce the contact resistance. Also, the tip 113 of the output slider 113
b, a locking roller 111 is also pivotally mounted on a left-right pivot 112, and the locking roller 111 is
The contact resistance is reduced and alleviated by contact with. The projecting biasing spring 104 of the input slider 107 is constituted by a compression coil spring, and one end of the spring 104 has a spring receiving recess 1 at the tip end 107 a of the input slider 107.
The other end of the spring 104 is in contact with the side wall 103b of the main body case 103.

The main body case 103 is made up of two rectangular front and rear thin boxes 103A and 103B.
3A and 103B are joined by an indigo type fitting, and a total of five screws 151 screwed into the assembly boss 150
Are fixed to each other. In the upper part of the main body case 103, two left and right through holes 148 are provided in the front-rear direction, and in the lower part of the main body case 103, four upper, lower, left and right through holes 148 are provided.
Are provided in the front-back direction. The main body case 103 is exposed and fixed to the rear surface of the door 102 by screws or bolts 156 passing through these through holes 148. Enlarged portions 148 a of the through holes 148 for accommodating screw heads or bolt heads are formed on both front and rear surfaces of the main body case 103. Therefore, the main body case 103 can be imposed and fixed on the door 102 even in a state where the top and bottom are reversed or a state where the top and bottom are reversed according to a mounting target portion. The drive cam seat 152 is fixed to the front surface 101a of the other door 101 by a bolt 166 passing through the through hole 165.

As the spring for pulling in the output slider 113, the spring 104 for projecting and urging the input slider 107 is used.
Are also used, but they can be separately provided as in the embodiment of the first aspect of the present invention. The spring 117 for holding the position of the first bearing block 116 is constituted by a compression coil spring, and the first bearing block 116 and the reinforcing plate 13 of the main body case 103 are provided.
5 is fitted to the first adjustment bolt 115. Driver grooved head 11 of first adjustment bolt 115
5a is an edge plate portion 136 of the reinforcing plate 135 of the main body case 103.
And is exposed to the through hole 137 of the side wall portion 103a of the main body case 103. The screw shaft portion 115b of the first adjustment bolt 115 is screwed into a screw hole 138 at the base end of the first bearing block 116, and the rotation of the first bearing block 116 rotates the front wall portion 103c and the rear wall portion 10 of the main body case 103.
Restricted by 3d. Therefore, the rotational movement of the first adjusting bolt 115 is converted into a linear movement of the first bearing block 116.

The spring for holding the position of the second bearing block 120 is also constituted by a compression coil spring.
The second adjustment bolt 119 is fitted between the base end portion 120a of the main body case 103 and the reinforcing plate 135 of the main body case 103.
Driver grooved head 119a of second adjustment bolt 119
Is in contact with the reinforcing plate 135 of the main body case 103 and is exposed through the through hole 140 of the side wall 103 a of the main body case 103. The screw shaft portion 119b of the second adjusting bolt 119 is screwed into the screw hole 141 at the base end of the second bearing block 120, and the rotation of the second bearing block 120 is
3 is stopped by the front wall portion 103c and the rear wall portion 103d. Therefore, the rotational movement of the second adjustment bolt 119 is converted to the linear movement of the second bearing block 120.

The output slider 113 is provided on the main body case 103.
The guide walls 142 are firmly guided and supported by a pair of guide walls 142 on the inner surfaces thereof. Output slider 11
Numeral 3 is divided into two parts in the longitudinal direction, and the proximal slider part 113A and the distal slider part 113B are connected by a center pin 143 and two transverse pins 144, 145. Because the proximal cross pin 144 is threaded through the longitudinal slot 146 of the proximal slider portion 113A, the distal slider portion 113B is playable and movable by a fixed stroke in the longitudinal direction. A compression coil spring 149 for urging the separation is provided between the center pin 14 and the front slider portion 113B.
3 and inserted. By setting such a play interval, the locking roller 111 can easily move over the cushion member and the gasket member of the fixed frame 108 when the door 102 is opened and closed. For this overcoming operation, the pivot 112, which is the center of rotation of the locking roller 111,
Are arranged in the left-right direction. Receiving metal 109 is through hole 16
7 are fixed to the fixed frame 108 by bolts 168 passing therethrough.

In the above-described embodiment, the linking slot 123 between the linking lever 125 and the output slider 113 is provided on the linking lever 125, but this slot may be provided on the output slider 113 side. Drive lever 131
Although the drive lever 131 has a connection slot 126 for connecting the input slider 107 to the input slider 107, this slot may be provided on the input slider 107 side. In addition, interlocking lever 1
The linking slot 129 between the drive lever 25 and the drive lever 131 is provided in the interlocking lever 125, but this slot can also be provided in the drive lever 131.

In the above embodiment, since the door 102 and the door 102 are of the inward opening type, the driving cam seat 152 is
In the embodiment shown in FIG. 13, the door 102 is an open-out type, so that the drive receiving seat 152 covers the side end surface portion 101 b of the door 101 and has a front side. A guide plate 152a is provided.
The front end portion 107b (detection roller 5) of the input slider 107 first comes into contact with the guide plate portion 152a, and is then pushed by the main body of the drive cam seat 152.

In the above embodiment, the locking roller 111 is provided at the tip 113b of the output slider 113, but the tip of the output slider 113 may be formed in a square shape as shown in FIG. It can also be formed in a latch type as shown in FIG.

There are various mounting modes of the automatic lock type device, and the mounting position and mounting direction of the main body case 103 are not particularly limited. The embodiment shown in FIG. 16 is applied to a double door of a double door type, and two main body cases 103 are fixed to one door 102 vertically in a longitudinal direction, and a driving cam seat 152 is attached to another one door. The upper and lower doors 101 are fixed to the upper and lower doors 101.
9 is fixed.

The embodiment shown in FIG. 17 is applied to a single door, and here, there is no relation between the main door and the sub door. The main body case 103 holds the door 10
2 are fixed to the upper and lower portions, and the driving cam seat 152 is
The upper and lower two pieces are fixed to the side pillars at the opening edge of the opening, and the receiver 109 is fixed to the frame and floor at the opening edge. In this embodiment, when the door 102 is closed, the input slider 107 is pushed by the drive cam seat 152 at the end of the closing operation, so that the output slider 113 and the receiver 109 are engaged, and the door 102 is automatically locked. .

As shown in FIG. 18, a drive cam seat 152 having an elliptical front surface is mounted on the other door 101 by a shaft rod 160 and a fixed base plate 161.
The shaft rod 160 has a round shaft portion 160a, a square shaft portion 160b, and a retaining portion 160d. The fixed base plate 161 fixed to the driving cam seat 152 and the fixed frame body 108 is provided with square holes 162, 163 in which the square shaft 160b is not rotatable while the round shaft 160a is rotatable. The shaft 160 is normally driven by the compression coil spring 164 inserted between the head 160c and the drive cam seat 152, so that
0b is urged to engage with the square holes 162, 163.

When the lock of the door 102 with respect to the fixed frame 108 is released, the head 160c of the shaft 160 is pushed in so that the square shaft 10b escapes from the square holes 162 and 163 and the round shaft 160a enters. As a result, the driving cam seat 152 can rotate around the circular protrusion 161a at the center of the shaft rod 160 and the fixed base plate 161. In the locked state, the drive cam seat 152 has its longitudinal end surface portion 152a abutting on the input slider 107, and when releasing the lock, the shaft 160 is pushed in as described above before the drive cam seat 152 is moved. As shown in FIG. 18, the end surface 152 b in the short-axis direction is turned 90 degrees to face the input slider 107. As a result, a margin space where the input slider 107 can protrude is created. As in the case of opening the other door 101 in the embodiment, the input slider 107 protrudes from the main body case 103 by the bias of the spring 104, and the output slider 113 retreats to the main body case 103 side. The lock is released. That is, the operating mechanism for displacing the drive cam seat 152 in the unlocking direction in the locked state is
The drive cam seat 152 is constituted by the shape itself, the shaft rod 160 and the fixed base plate 161.

The embodiment shown in FIG. 20 is an application example of the embodiment of FIG. 16 applied to a double door. A driving cam seat 152 and a holder 109 are provided on the wall of the fixed frame 108. Is provided. As shown in FIGS. 21 and 22, the door 102 is locked in the open position by the additional driving cam seat 152 and the receiving socket 109. In each of the above embodiments, the receiver 109 is fixed to the fixed frame 108 by protruding from the front surface or the rear surface of the fixed frame 108. However, as shown in FIG. Can also. The automatic locking type lock device according to the second aspect of the present invention can also be embedded and mounted inside the door 102 as shown in FIG.

In the mode of use shown in FIG.
Is protruded and fixed to the door 102 with the longitudinal direction being horizontal, the driving cam seat 152 is protruded and fixed to the front or rear surface of the opening edge of the fixed frame 108, and the receiving member 109 is mounted on the front or rear surface of the other door 101. Sticking out.
In such a horizontal mounting, the input slider 107 is located closer to the hinge axis of the door 102 than the output slider 113. Therefore, when the door 102 is closed and rotated, the tip 107b of the input slider 107 is Before the door 102 comes into contact with the driving cam seat 152 and the door 102 comes to the closed position, the distal end portion 113b of the output slider 113 projects from the main body case 103 and collides with the side edge of the receiving member 109. Prevent closure.

In order to cope with this, the base-side slider portion 11 divided into two in the longitudinal direction as described above is used.
The play interval between the front slider 3A and the front slider portion 113B is properly set, and the output slider 1 is set as in the above embodiment.
By attaching a roller 111 to the tip of the output slider 113, or by forming the tip 113b into a latch shape as shown in FIG. Gold 109
, The output slider 113 once retreats to the main body case 103 side, the door 103 is completely closed, and the output slider 113 and the receiving metal 109 face each other. It is only necessary to project again to engage with the receiving member 109 by attaching.

By the combination of such horizontal mounting and the above-described normal vertical mounting, the door 10 is positioned on three sides of the upper and lower sides of the door 102 and one of the left and right sides other than the hanging by the hinge.
2 can be fastened and locked to the fixing frame 108.
In unlocking, the input slider 107 is rotated by displacing the drive cam seat 152 by employing the same configuration as the embodiment shown in FIGS.
3, the output slider 113 can be made to escape from the receiver 109. By using the play interval, a knob protruding from the slot in the length direction of the main body case 103 is pulled, and the output slider 113 is pulled out. Tip 1 of
13b can be withdrawn from the deposit 109.

[0036]

In the self-locking locking device according to the first aspect of the present invention, the sub door 2 and the frame are deformed due to distortion of the sub door 2 or deformation of the hanging hinge during long-term use. Alternatively, when a gap exceeding the designed value is generated between the sub door 2 and the upper or lower edge of the sub door 2 and the frame or floor 8 rubs, By rotating the adjustment bolt 15 clockwise or counterclockwise, the first bearing block 17 is moved back and forth in the left-right direction, and the position of the horizontal shaft 22 which is the fulcrum of the L-shaped interlock lever 25 can be adjusted. As a result, the amount of protrusion of the vertical slider 13 from the main body case 3 can be increased or decreased, so that the above-mentioned excessive gap or rubbing can be properly eliminated, and smooth opening and closing of the sub door 2 can be guaranteed.

In addition, a gap exceeding the designed value is generated between the main door 1 and the sub door 2 due to distortion of the main door 1 or the sub door 2 or deformation of the hinge during long-term use. The portion 1a is the tip 7b of the horizontal slider 7.
When the (detection roller 5) is not pressed, or when the gap disappears and the side edges of the main door 1 and the sub door 2 rub against each other, the second adjusting bolt 19 is turned clockwise or counterclockwise. By rotating, the second bearing block 20 is moved forward and backward in the left-right direction, and the position of the horizontal shaft 28 which is the fulcrum of the drive lever 31 can be adjusted. As a result, the amount of protrusion of the horizontal slider 7 from the main body case 3 can be increased or decreased, so that the above-mentioned excessive gap and rubbing can be properly eliminated, and the lock mechanism linked to opening and closing of the main door 1 can be properly operated. It is.

Further, even if the position of the receiving portion 9 of the frame portion or the floor portion 8 and the tip portion 13b of the vertical slider 13 are not aligned, the tip portion of the vertical slider 13 is pivotally connected by the horizontal shaft 12. When the locking roller 11 is used, if the misalignment is within the radius of the roller 11, the vertical slider 13 is pulled toward the alignment position by the guide action of the roller surface, and the locking roller 11 and the receiving roller 9 is reliably established. If the tip of the vertical slider 13 on the roller mounting side is rounded and placed, the above-described guiding action is further exhibited.

In the self-locking lock device according to the second aspect of the present invention, the main body case 103 projects from the front or rear surface 102a of the door 102 and is fixed. The driving cam seat 152 protrudes and is fixed to the front or rear surface 108a of the opening edge of the driving cam seat 152.
Is protruded and fixed to the front or rear surface 101a of the other door 101 or the front or rear surface 108a of the opening edge. As well as the new door, it can be attached to the existing door without any trouble, and the automatic lock function can be easily added to the existing door.

In the self-locking lock device according to the third aspect of the present invention, the input slider 107 can be projected from the main body case 103 by a predetermined stroke by rotating the drive cam seat 152 by the intervention of the operating mechanism.
The present invention can be applied to other than a two-piece linked door structure including a main door and a sub door.

[Brief description of the drawings]

FIG. 1 is a left side view of an automatic lock type lock device according to an embodiment of the present invention in an unlocked state.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view of the self-locking device of FIG. 1 in a locked state.

FIG. 4 is a front view of an automatic lock type lock device according to an embodiment of the present invention.

FIG. 5 is a rear view of the self-locking lock device of FIG. 4;

FIG. 6 is a left side view of the self-locking lock device of FIG. 4;

FIG. 7 is a right side view of the self-locking lock device of FIG. 4;

FIG. 8 is a plan view of the self-locking lock device of FIG. 4;

FIG. 9 is a bottom view of the self-locking lock device of FIG. 4;

FIG. 10 is a sectional view taken along line BB of FIG. 8, showing an unlocked state.

FIG. 11 is a plan view of the automatic lock type lock device of FIG. 4 in a locked state.

12 is a longitudinal sectional view of a main part of a lower portion of a door in a lock established state of the automatic lock type lock device of FIG. 4;

FIG. 13 is a plan view of a drive cam seat portion of an automatic lock type lock device according to another embodiment of the present invention.

FIG. 14 is a perspective view of an output slider portion of an automatic lock type lock device according to another embodiment of the present invention.

FIG. 15 is a perspective view of an output slider portion of an automatic lock type lock device according to still another embodiment of the second invention.

FIG. 16 is a front view showing a mounting mode of the self-locking lock device according to the second aspect of the present invention.

FIG. 17 is a front view showing another mounting mode of the self-locking lock device according to the second aspect of the present invention.

18 is an enlarged front view of a driving cam seat portion of the self-locking lock device of FIG.

FIG. 19 is a sectional view taken along line CC of FIG. 18;

FIG. 20 is a front view showing another mounting mode of the self-locking lock device according to the second aspect of the present invention.

21 is a plan view of the upper part of the door when the door of the self-locking type or the lock device of FIG. 20 is locked.

FIG. 22 is a right side view of the upper part of the door when the door of the automatic lock type or the lock device shown in FIG. 20 is locked.

FIG. 23 is a sectional view of a main part showing another mounting mode of the self-locking lock device according to the second aspect of the present invention.

FIG. 24 is a sectional view of a main part showing another mounting mode of the self-locking lock device according to the second aspect of the present invention.

FIG. 25 is a front view showing still another mounting form of the self-locking lock device according to the second aspect of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main door 2 Sub door 3 Body case 4 Spring for projecting horizontal slider 5 Detection roller 6 Vertical axis of detection roller 7 Horizontal slider 8 Floor 9 Floor catch 10 Spring for retracting vertical slider 11 Locking Roller 12 Horizontal axis of locking roller 13 Vertical slider 14 Through hole in side plate portion of main body case 15 First adjustment bolt 16 First bearing block 17 First retaining spring 18 Through hole in side plate portion of main body case 19 Two adjusting bolts 20 Second bearing block 21 Second holding spring 22 Horizontal axis for fulcrum of interlocking lever 23 Slot for interlocking lever 24 Connection slot 25 Interlocking lever 26 Slot for drive lever 27 Connection horizontal axis 28 Horizontal axis for fulcrum 29 Interlocking lever slot 30 Connecting horizontal axis 31 Drive lever 103 Body case 107 Input slider 108 Fixed frame 09 hangers 113 output slider 152 driven cam locus

Claims (3)

(57) [Claims] 1. A main body case (3) embedded and fixed in a side portion (2a) of a sub door (2) facing a side portion (1a) of a main door (1).
The main door 1 is accommodated in the main body case 3 and is urged forward by the projecting spring 4 so that the front end portion 7b is moved toward the side surface 1a of the main door 1 in the left and right direction.
A horizontal slider 7 pushed by the side surface portion 1a of the fixed frame body or a receiving portion 9 of the floor portion 8 and is guided vertically reciprocally to be accommodated in the main body case 3 and the tip portion 13b is received. A vertical slider 13 which disengages from the gold 9; a horizontal slider 7
With respect to the vertical slider 13, it is guided so as to be capable of position adjustment in the right and left and lateral directions on the side of the vertical slider 13, is accommodated in the main body case 3, and is fitted to the first adjustment bolt 15 passed through the through hole 14 of the side plate 3 a of the main body case 3 A first bearing block 16 held at a predetermined adjustment position by a first holding spring 17; the horizontal slider 7 is accommodated in the main body case 3 on a side opposite to the vertical slider 13 so as to be position-adjustable in the left-right and lateral directions; The second holding spring 19 is fitted to the second adjustment bolt 19 passed through the through hole 18 of the side plate 3 a of the main body case 3.
1 and a second bearing block 20 held in a predetermined adjustment position by an arm 1; an intermediate portion 25a pivotally attached to the first bearing block 16 by a horizontal shaft 22 in the front-rear direction; By vertical slider 1
L-shaped interlocking lever 25 connected to the base end 13a
And at the intermediate portion 31a, connected to the base end portion 7a of the horizontal slider 7 by the horizontal axis 27 in the front-rear direction,
1b, the other end 31 is pivotally connected to the front end 20b of the second bearing block 20 by the horizontal shaft 28 in the front-rear direction.
c, the other arm tip 25c of the interlocking lever 25
Drive lever 31 connected to the front and rear by a horizontal shaft 30
An automatic lock type locking device in which the locking roller 11 enters the receiving metal 9 when the main door 1 is closed against the sub door 2. 2. A main body case 103 protruding and fixed to the front or rear surface 102a of the door 102; and a front or rear surface 101a of another door 101 facing the door 102 or a front or rear surface 108a of an opening edge of the fixed frame 108. A driving cam seat 152 projected and fixed; and a driving cam seat 152
The input slider 107 is housed in the main body case 103 and is urged forward by the projecting spring 104, and the leading end 107 b is pushed by the driving cam seat 152 at the end of the closing operation of the door 102. ;
It is fixed to the front or rear surface 108a of the opening edge of the fixed frame 108 by protruding and fixed, or is dug and fixed to the upper or lower surface 108b of the opening edge of the fixed frame 8 or the front or rear surface 101a of another door 101. And an output slider 1-13 which is guided in the main case 103 so as to be able to advance and retreat toward the receiver 109, and whose leading end 113b engages with the receiver 109; and an input slider 107. Is guided in the movement direction of the input slider 107 on the side of the output slider 113 so as to be adjustable in position, and is accommodated in the main body case 103.
The first bearing block 116 which is fitted to the first adjustment bolt 115 passed through the through hole 114 of the third side wall 103 a and is held at a predetermined adjustment position by the first holding spring 117.
And the output slider 11 with respect to the input slider 107
On the other side of the input slider 107, the input slider 107 is accommodated in the main body case 103 while being guided so as to be adjustable in the moving direction of the input slider 107,
A second bearing block 120 fitted in a second adjustment bolt 119 passed through the through hole 118 of the side wall portion 103a of the main body case 103 and held at a predetermined adjustment position by a second holding spring 121; Pivotally connected to the first bearing block 116 by a pivot 122 in the front-rear direction,
One end 125b of the arm is connected to the shaft pin 124 in the front-rear direction.
An L-shaped interlocking lever 125 connected to the base end 113a of the output slider 113 by an input shaft 107 in the front and rear direction at the intermediate portion 131a.
Of the second bearing block 120 at one end 131b by a pivot 128 in the front-rear direction, and the other end 131b.
c, the other arm tip 12 of the interlocking lever 125
5c is a self-locking lock device comprising a drive lever 131 connected by a shaft pin 130 in the front-rear direction. 3. The driving cam seat 152 in a locked state.
Is displaced, and the main body case 103 of the input slider 107 is moved.
The self-locking lock device according to claim 2, further comprising an operation mechanism that allows an operation of projecting from the lock.