JP2001132304A - Cremorne lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cremorne lock device with which locking operation can be done correctly by a single worker and excellent in operability by providing an automatic locking mechanism in closing a door. SOLUTION: The cremorne lock device mainly comprises a case 1, a dead bolt 2, a latch bolt 3, upper and lower lock bolts 4 and 5, and a dead bolt detent plate 6, and the latch bolt 3 is automatically engaged with a receiving piece 14 of a fixed frame body 12 at the termination of the closing operation of the door 10. The door 10 is locked to the fixed frame body 12 at three parts of the latch bolt 3 and the upper and lower locking member 4 and 5, and a pair of drive pins 3b of the dead bolt are fitted in a cam groove 4a of the upper and lower locking members 4, and a cam 2d of the dead bolt 2 is engaged with a driven pin 3b of the latch bolt 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clement lock device in which a pair of upper and lower locking members are simultaneously driven to a locking position or an unlocking position by rotation of a rotation shaft of a handle.

[0002]

2. Description of the Related Art In a conventional clement lock device disclosed in Japanese Utility Model Laid-Open Publication No. 5-47272, a rotating operation shaft of a handle rotatably supported by a case fixed to a door and a door are fixed to a fixed frame. An interlocking link mechanism is interposed between the upper and lower locking members arranged for locking, and the interlocking link mechanism is connected to a rotating operation shaft of a handle so as to rotate integrally with a crank, A pair of upper and lower slide blocks fitted linearly slidably in the case and the lock member is connected to the distal end, and the distal end is connected to the base end of the slide block by a pivot, and the base end is connected to the base by the pivot. And an intermediate link connected to the tip of the crank.

In this clamp lock device, when the handle is rotated forward and backward, the slide block reciprocates up and down linearly, and the upper and lower locking members advance and retreat in the up and down direction to engage and disengage with the metal receiving portion on the fixed frame side. However, since it is mechanically complicated and has a large number of components, the cost of manufacturing and assembling is increased. Also, with this Clemonrock device,
In locking the door by rotating the handle, the door is completely closed, and the lock fittings attached to the tips of the upper and lower locking members or the locking members are correctly facing the metal receiving portion on the fixed frame side. There must be.

[0004] However, if the resilience of the sealing packing mounted between the fixed frame and the door is strong, or if the door is installed on the roof of a building like a communication shelter and the door is blown by strong wind, It is not easy to turn the handle while holding the door in the closed position, and in some cases, two operators, a person pressing the door and a person turning the handle, are required, resulting in poor operability.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to simplify the mechanism and reduce the number of component parts, so that the cost of manufacturing and assembling can be greatly reduced, and the door is brought to the closed position. An object of the present invention is to provide a clemon lock device that has a mechanism that is automatically locked so that locking can be accurately performed by a single operator and that is excellent in operability.

[0006]

Means for Solving the Problems Hereinafter, a description will be given using reference numerals in the accompanying drawings. The clemon lock device of the present invention accommodates a dead bolt 2 in a case 1 in a rotatable manner,
A receiving hole 2a is provided at the center of the deadbolt 2 in which the rotation shaft of the handle is fitted. A deadbolt detent plate 6 having a sagging surface 6a that contacts the side surface of the deadbolt 2 is housed in the case 1. When the dead bolt 2 is in the temporary locking position, the first contact surface 2e that contacts the sagging surface 6a of the dead bolt detent plate 6, and the dead bolt 2
Is in the fully locked position, a second contact surface 2f that contacts the sagging surface 6a of the deadbolt detent plate 6 is provided on the side surface of the deadbolt 2. Spring base 1 a provided on case 1 and sagging surface 6 a of deadbolt detent plate 6
By placing the spring 7 between the two, the elastic force of the spring 7 causes the sagging surface 6a of the dead bolt detent plate 6 to selectively contact the first contact surface 2e or the second contact surface 2f of the dead bolt 2. Act to touch.

The upper and lower lock members 4 and 5 are guided in a linear motion in the vertical direction and housed in the case 1 and protrude from the upper and lower holes 1b and 1c of the case 1. A pair of drive pins 2b are provided on the back surface of the dead bolt 2 with the receiving hole 2a interposed therebetween, and the drive pins 2b of the dead bolt 2 are fitted into cam grooves 4a, 5a provided at the inner ends of the upper and lower lock members 4,5. . The latch bolt 3 is guided so as to linearly move in the left-right direction, housed in the case 1, and protrudes from the side through hole 1 d of the case 1. A cam 2c is provided in front of the dead bolt 2,
When the dead bolt 2 is rotated in the locking direction, the cam 2c abuts on a protrusion 3a provided on the front side surface of the latch bolt 3 so that the latch bolt 3 advances in the locking direction.
Also, a cam 2d is provided on the side surface of the dead bolt 2, and when the dead bolt 2 is rotated in the unlocking direction, the cam 2d comes into contact with a pin 3b provided on the back surface of the latch bolt 3, and the latch bolt 3 is moved in the unlocking direction. Try to retreat. Latch bolt 3
Is provided with a slide plate 8 and a spring so as to urge the latch bolt 3 in the advancing direction when retracted from the temporary locking position.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 8, by processing the tip of the latch bolt 3, when the door 10 is closed and rotated while the apparatus is in the temporary locking position, the latch is terminated at the end of the closed rotation. Since the cam surface 3c on the rear surface of the distal end of the bolt 3 collides with the edge frame of the front opening of the fixed frame 12, the latch bolt 3 is biased by the springs provided on the dead bolt detent spring 7 and the slide plate 8. Retreat once in opposition. When the closing rotation further proceeds and the tip of the latch bolt 3 reaches the front of the receiving metal 14, the latch bolt 3 moves forward instantaneously by the urging of both springs and engages with the receiving metal 14. This locks the door 10 in the closed position.

When the handle 11 is rotated in the locking direction in the state where the door 10 is held in the closed position (FIGS. 8 and 4), the cam 2c of the dead bolt 2 causes the front protrusion 3a of the latch bolt 3 to move. Pushing, the latch bolt 3 further advances, and a tapered surface 3d provided in front of the latch bolt 3
As the door 14 slides, the closing rotation of the door 10 further proceeds, and the door 10 reaches the fully closed position where the waterproof packing 13 is compressed. Since the drive pin 2b on the back surface of the dead bolt 2 pushes the groove wall surfaces of the cam grooves 4a and 5a simultaneously with the advancement of the latch bolt 3, the upper and lower lock members 4, 5 are protruded from the case 1 by a predetermined stroke, and the leading end of the lock member 4 Or a lock fitting 2 which is added to and attached to the lock member 4
9 engages the upper and lower receiving members 15 and 16 of the fixed frame 12.
Thus, 3 by the latch bolt 3 and the lock member 4
Point lock is established (FIG. 7).

On the other hand, when the handle 11 is turned in the unlocking direction in the fully closed state shown in FIG. 7, the drive pin 2b on the back surface of the dead bolt 2 pushes back the groove wall surfaces of the cam grooves 4a and 5a. Is stored in the case 1 for a predetermined stroke, and the lock fittings attached to and attached to the distal ends of the lock members 4 and 5 or the lock members 4 and 5 are detached from the upper and lower receiving members 15 and 16 of the fixed frame 12. At the same time, the cam 2d on the side of the dead bolt 2 pushes the driven pin 3b on the back of the latch bolt 3 to retract the latch bolt 3 to the temporary locking position (FIGS. 4 and 8). At this point, the compression of the waterproof packing 13 is released, and the waterproof property is lost. However, the tip of the latch bolt 3 is still engaged with the receiving metal 14, and the door 10 is locked in the closed position. 4 from the temporary locking position shown in FIG. 4 against the urging of the dead bolt detent spring 7 and the spring provided on the slide plate.
When 1 is turned in the unlocking direction, the latch bolt 3 is further retracted, and the tip of the latch bolt 3 is detached from the metal receiving 14 of the fixed frame 12. Thus, the three-point lock is released by a single operation of turning the handle.

In the embodiment shown in FIG. 9, the case 1 and its cover plate 21 are fixed by screws 22. A screw 23 is used to fix the case 1 to the door 10. Case 1
A bearing hole 24 is provided at the center of the cover bolt 21 and at the center of the cover plate 21, and a receiving cylinder 25 provided at the center of the deadbolt 2 is fitted. Handle 11 is deadbolt 2
The handle 11 and the deadbolt 2 can be integrally formed.

The cover plate 21 has a horizontally long slot into which the guide pin 26 of the latch bolt 3 is inserted, a vertically long slot into which the guide pin 27 of the upper lock bolt 4 is inserted, and a vertically long slot into which the guide pin 28 of the lower lock member 5 is inserted. Slots are provided. The upper lock member 4 and the latch bolt 3 are in contact with each other and serve as guide means for each other. The lower lock member 5 and the deadbolt detent plate 6 are also in contact with each other and serve as guide means for each other.
An extension member 29 is connected to the upper and lower locking members 4 and 5, and is guided by a guide fitting 30 screwed to the door 10. Known shapes can be arbitrarily selected and used for the shape and structure of the handle 11.

[0013]

As described above, the clemon lock device of the present invention has the case 1, the dead bolt 2, the latch bolt 3, the upper and lower lock bolts 4, 5, and the dead bolt detent plate 6 as main components. Since the mechanism is simplified and the number of components is small, the cost of manufacturing and assembling can be greatly reduced. Further, at the end of the closing operation of the door 10, the latch bolt 3 automatically engages with the receiving member 14 of the fixed frame 12, so that the operator does not need to hold the door 10 in the closed position by himself, and Even in a situation where the door 10 is swung, the closing and locking of the door 10 can be performed simply and accurately by only one person. Further, by turning the handle 11 in the locking direction, the door 10 can be further rotated in the closing direction and the waterproof packing 13 can be compressed, and the waterproof operation can be performed simply and accurately. As described above, since the waterproof operation and the locking operation of the door 10 are performed separately, the door 10 can be easily locked even when the waterproof packing 13 has a strong repulsive force.

The locking of the door 10 with respect to the fixed frame 12 is performed at the three positions of the latch bolt 3 and the upper and lower locking members 4 and 5, so that the locking stability is excellent. Further, since the pair of drive pins 2b of the dead bolt is fitted into the cam groove 4a of the upper and lower locking member 4 and the cam 2d of the dead bolt 2 is engaged with the driven pin 3b of the latch bolt 3, the three-point unlock operation is performed. Can be simultaneously performed by a single operation of rotating the handle 11, which is excellent in the simplicity of the releasing operation.

[Brief description of the drawings]

FIG. 1 is a front view of a cremon lock device according to an embodiment of the present invention in a temporarily locked state.

FIG. 2 is a plan view of the clemon lock device.

FIG. 3 is a left side view of the clemon lock device.

FIG. 4 is a front view when the case cover 21 of the clemon lock device is removed.

FIG. 5 is a rear view of the dead bolt 2, the latch bolt 3, the upper and lower locking members 4, 5 and the case cover 21 of the clemon lock device.

FIG. 6 is a front view when the case cover 21 of the unlocked state of the clemon lock device is removed.

FIG. 7 is a front view of the clemon lock device when the case cover 21 in a completely locked state is removed.

FIG. 8 is a cross-sectional view showing one mounting example of the clemon lock device of the present invention.

FIG. 9 is a perspective view of a communication shelter using the clemon lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 1a Spring pedestal 1b Upper surface through hole 1c Lower surface through hole 1d Side through hole 2 Dead bolt 2a Receiving hole 2b Drive pin 2c Front cam 2d Side cam 2e First contact surface 2f Second contact surface 3 Latch bolt 3a Front protrusion 3b Follower pin 3c Guide pin 4 Upper lock member 4a Cam groove 5 Lower lock member 5a Cam groove 6 Deadbolt detent plate 6a Drip surface 7 Spring 8 Slide plate 10 Door 11 Handle 12 Fixed frame 13 Waterproof packing 14 Receiving metal 15 Upper part Receiving metal 16 Lower receiving metal 20 Device box 21 Case cover 22 Assembly screw 23 Mounting screw 24 Bearing hole 25 Receptacle cylinder 26 Latch bolt guide pin 27 Upper lock member guide pin 28 Lower lock member guide pin 29 Extension member 30 Guide bracket

Claims (1)

[Claims] 1. A deadbolt detent having a case in which a deadbolt is rotatably housed in a case, a receiving hole in which a rotary operation shaft of a handle is fitted in a center portion of the deadbolt, and a sag surface abutting on a side surface of the deadbolt. The plate is housed in the case, and the side of the deadbolt, when the deadbolt is in the temporary locking position, the first contact surface that contacts the sagging surface of the deadbolt detent plate, and when the deadbolt is in the fully locked position Provide a second contact surface that contacts the sagging surface of the deadbolt detent plate, and install a spring between the spring pedestal provided on the case and the sagging surface of the deadbolt detent plate to reduce the elastic force of the spring to the deadbolt detent plate. Of the dead bolt acts alternately on the first contact surface or the second contact surface of the dead bolt, and sandwiches the receiving hole on the back surface of the dead bolt. A pair of drive pins is provided, and the drive pins are guided in a linear motion in the vertical direction and housed in the case. The drive pins are fitted to the inner ends of the upper and lower lock members projecting from the upper and lower through holes of the case. A cam groove is provided, a cam is provided on the front of the dead bolt, and it is guided in a linear motion in the left and right direction and is stored in the case.The dead bolt is locked on the front side of the latch bolt protruding from the side through hole of the case. When rotated, the cam comes into contact and a bump is provided so that the latch bolt advances in the locking direction, a cam is provided on the side of the dead bolt, and when the dead bolt is rotated in the unlocking direction, the cam comes into contact. A pin is provided on the back surface of the latch bolt so that the latch bolt retracts in the unlocking direction, and when the latch bolt retracts from the temporary locking position, the slide plate and the slide plate are urged in the advancing direction of the latch bolt. CLEMENT lock device provided with a value.