JP2007327242A - Lock device for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device for a door capable of preventing large shock from being applied on it even if a tip of a lock bar comes into contact with the ground surface when conveying while the lock bar protrudes from the door and preventing a component from being damaged by merely preparing the short lock bar. <P>SOLUTION: This lock device for the door is composed of a main body operation part 5 provided at a position reachable by a hand on an end face on the opposite side to a turn pivotally supporting side of the door on one side closed at a tip of the double doors opening outward, a slide fitting 6 attached to the main body operation part 5 to elevate and lower freely in the vertical direction, a clamper 7 attached to a horizontal plate part 6a at an upper end of the slide fitting 6, the lock bar 10 supported on a U-shaped angle 8 positioned on an inner side at an upper end of the door 3 on one side so as to elevate and lower freely in the vertical direction and energized upward by a coil spring 9 provided in the angle 8, and a wire 11 for linking the lock bar 10 with the clamper 7. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a door locking device.

  As a conventional locking device of this kind, for example, a device disclosed in Patent Document 1 is known. In the door locking device disclosed in Patent Document 1, a vertically long case portion is constituted by a main body portion and a lid plate that closes one side portion of the main body portion, and the inside of the working component storage space inside the case portion is provided. An elevating member as an operating part is housed in the operation, and the elevating member is pivotally supported by an intermediate portion in the vertical direction of the main body, and is exposed to the outside through an opening on the front end side of the case formed by the main body and the cover plate. It is configured to move up and down by pivoting around the horizontal axis of the lever, and an opening for inserting a lock rod is formed at the upper end of the case formed by the main body and the cover plate. The lower end of the lock rod inserted from the portion is coupled to the upper end of the elevating member, and the case portion is hermetically sealed except for the operation lever and the attachment portion of the lock rod.

The door locking device disclosed in Patent Document 1 is embedded in one door side which is closed at the front end of a double door provided in the storage box, and is operated by the operation lever to move the lock rod through the lifting member. Is projected from the upper end of one door, and the upper end of the lock bar is inserted into the hole of the storage box main body.
JP 2001-227224 A

  In the configuration of the conventional door locking device disclosed in Patent Document 1 above, the length of the lock rod is a fixed length according to the vertical length of the door, so as to correspond to doors having different vertical lengths. Had to prepare several types of lock rods of different lengths. Further, when a long lock rod is used, a guide member is necessary so that the lock rod facing in the vertical direction does not swing sideways. Further, since the lock rod is directly connected to the lifting member in the case portion, when the lock rod is projected from the door and the impact is applied when the tip of the lock rod contacts the ground or the like, There was a problem that parts were damaged.

  An object of the present invention is to solve such a problem, and it is not necessary to prepare a plurality of types of lock rods having different lengths, and it is only necessary to prepare a lock rod having a short length, thereby providing a guide member. In addition, when transporting with the lock rod protruding from the door, even if the tip of the lock rod touches the ground, etc., a door lock device is provided that does not damage the parts without causing a large impact. There is to do.

  The door locking device according to claim 1 of the present invention is embedded in an end surface opposite to the pivoting support side of one door that is closed at the end of a double door that opens and closes the front opening of the storage box. The door locking device includes a main body operating unit provided at a height that can be reached by one of the doors, a slide fitting attached to the main body operating unit so as to be movable up and down, and the slide. A clamper attached to the upper or lower end of the metal fitting and a coil spring provided in the angle supported by an angle provided at the inner position of the upper or lower end of one of the doors and urged upward or downward. And a wire that connects the lock rod and the clamper, and the clamper protrudes downward or upward from the lock rod. The length between the lock rod and the slide fitting can be adjusted by pinching and releasing the wire by inserting the wire vertically, and the body operation section has a slide fitting to lower or raise the lock rod A push button for stopping the movement of the slide fitting in a state where the slide fitting is moved down or up is provided, and the stop holding of the slide fitting is released by pressing the push button.

  As described above, the door locking device of the present invention does not need to prepare a plurality of different types of lock rods by adjusting the length of the wire between the lock rod and the slide fitting by the clamper, It is only necessary to prepare a lock rod having a short length, thereby eliminating the need for a guide member. Further, it is possible to provide a door locking device that does not damage parts without causing a large impact even when the tip of the lock rod comes into contact with the ground or the like when transported with the lock rod protruding from the door. it can.

Hereinafter, an embodiment of the present invention will be specifically described with reference to FIGS.
In the figure, reference numeral 1 denotes a door locking device embedded in an end surface of the door 3 which is closed at the end of the double doors 3 and 4 which open and close the front opening of the storage box 2 on the side opposite to the pivoting support side. The door locking device 1 is attached to a main body operation unit 5 provided at a height position within reach of the hand above the middle in the height direction of one door 3 and is attached to the main body operation unit 5 so as to be movable up and down. The sliding metal fitting 6, the clamper 7 attached to the horizontal plate portion 6 a at the upper end of the sliding metal fitting 6, and the hook-shaped angle 8 located inside the upper edge of the one door 3 are supported so as to be movable up and down in the vertical direction. 8 includes a lock rod 10 urged upward by a coil spring 9 provided in 8, and a wire 11 connecting the lock rod 10 and the clamper 7.

  Next, each part will be described in detail. The main body operation unit 5 is vertically long and has a vertically long opening 12 penetrating in the front-rear direction from the central part in the vertical direction to the vicinity of the lower end. It has a round hole 13 therethrough. The upper end of the opening 12 is inclined downward in a curved shape from the front to the rear, and 14 is the inclined portion. The round hole 13 is formed with a step portion in the middle and has a smaller diameter on the rear side than the front side. The round spring 13 has a smaller diameter than the large-diameter hole portion 13a on the front side with the coil spring 16 fitted on the shaft portion 15a of the push button 15. The shaft portion 15a of the push button 15 is inserted into the small-diameter hole portion 13b on the rear side, and the cylindrical locking member 17 is externally fitted to the small-diameter portion 15b of the shaft portion 15a protruding from the small-diameter hole portion 13b. The retaining member 17 is prevented from coming off by attaching a retaining ring 18 to the tip of the retaining member 17. The outer diameter of the locking member 17 is larger than the inner diameter of the small-diameter hole portion 13 b, so that the push button 15 inserted into the round hole 13 does not come off in front of the round hole 13. The push button 15 inserted into the round hole 13 is urged forward of the round hole 13 by the coil spring 16, and the push button is in a state where the locking member 17 is in contact with the rear end surface of the small diameter hole portion 13b. The 15 heads 15c are configured to be flush with the front end surface of the large-diameter hole 13a. Next, the slide metal fitting 6 is formed by bending a horizontal plate portion 6a at the upper end of the plate portion 6b facing in the up-down direction, and horizontally at the lower end of the plate portion 6b in the direction opposite to the bending direction of the horizontal plate portion 6a. A plate portion 6c is formed by bending, and a hole portion 19 into which the lower end of the clamper 7 is fitted is formed in the horizontal plate portion 6a at the upper end, and the clamper 7 is fitted with the lower end of the clamper 7 inserted into the hole portion 19. The clamper 7 is attached to the horizontal plate portion 6a at the upper end in the vertical direction by screwing the nut 20 into the male screw portion at the lower end. A round hole 21 is formed in the vertical middle portion of the plate portion 6 b facing the vertical direction of the slide fitting 6, and a long hole 22 extending vertically from the round hole 21 is formed. The width of the long hole 22 is smaller than the diameter of the round hole 21 and slightly larger than the diameter of the shaft portion 15a. In this slide fitting 6, a plate portion 6b facing vertically is brought into contact with a substantially upper half of the back surface of the main body operation portion 5, and a horizontal plate portion 6c at the lower end is located in the opening 12, so that the slide fitting 6 is raised. Sometimes the lower horizontal plate portion 6c comes into contact with the lower end of the inclined portion 14 and the slide fitting 6 stops rising, and when the slide fitting 6 is lowered, the lower horizontal plate portion 6c is the bottom of the opening 12 of the main body operation portion 5. In this state, the locking member 17 provided on the push button 15 urged by the coil spring 16 is fitted into the round hole 21 of the slide fitting 6 and abuts on the rear end surface of the small diameter hole portion 13b. The head 15c of the push button 15 is flush with the front end surface of the large-diameter hole 13a. By the way, on the back side of the main body operation unit 5, a support plate 23 is attached to the main body operation unit 5 with screws 24 so as to slidably hold the slide fitting 6 between the main body operation unit 5. Reference numeral 25 denotes screw holes formed at both upper and lower ends of the main body operation unit 5 for screwing the screws 24. Next, the clamper 7 attached to the horizontal plate portion 6a at the upper end of the slide metal fitting 6 is provided with a clamper main body portion 26 and clamping means 27 for grasping the wire 11 inserted into the clamper main body portion 26. In this clamping means 27, a plurality of ball-shaped clamping members 29 are attached to a support member 28 that can be opened and closed within the clamper main body 26, and the ball-shaped clamping members 29 are in contact with the tapered surface 30 on the inner surface of the clamper main body 26. When the wire 11 passing through the plurality of ball-shaped holding members 29 is pulled toward the small diameter side of the tapered surface 30 (the upper end side of the clamper body portion 26), the ball-shaped holding member 29 is the same as the wire 11 due to friction with the wire 11. The ball-shaped pinching member 29 is strongly pulled in the direction and pinches the wire 11 strongly so that the upper end side of the clamper body 26 It is configured to stop the movement of al the wire 11. The upper end of the support member 28 protrudes from the upper end side of the clamper main body 26 by the urging force of a spring 31 provided in the clamper main body 26, and the wire between the clamper 7 (slide fitting 6) and the lock rod 10. 11 is increased by pushing the upper end of the support member 28 protruding from the upper end side of the clamper main body 26 into the clamper main body 26 against the spring 31 so that the ball-shaped holding member 29 has the tapered surface. The wire 11 can be pulled out from the upper end side of the clamper body 26 by moving to the large diameter side of 30 and releasing the pinching of the wire 11. When it is desired to shorten the length of the wire 11 between the clamper 7 and the lock rod 10, the wire 11 protruding from the lower end side of the clamper main body portion 26 is pulled downward or the support protruding from the upper end side of the clamper main body portion 26 is supported. By pushing the upper end of the member 28 against the spring 31 into the clamper main body 26, the wire 11 can be moved within the support member 28 without receiving a strong clamping force by the ball-shaped clamping member 29. Can be shortened. Thus, the clamper 7 inserts the wire 11 protruding downward from the lock rod 10 into the support member 27 in the vertical direction, pulls the wire 11 downward, or pushes the upper end of the support member 28 into the clamper main body 26. The lower end of the wire 11 is pulled out from the clamper 7 with a margin. Next, the lock rod 10 has a wire insertion hole 10a penetrating in the vertical direction at the center, and the wire 11 is inserted into the wire insertion hole 10a from above. A ball-shaped stopper 11a is provided at the upper end of the wire 11 so as to stop at the upper end of the wire insertion hole 10a. The upper end of the coil spring 9 that urges the lock rod 10 upward is in contact with a retaining ring 32 provided in the middle portion in the longitudinal direction of the locking rod 10, and the retaining ring 32 is placed on the lower surface of the upper end plate portion 8 a of the angle 8. The lock rod 10 is biased upward by the contact and the lower end of the coil spring 9 resting on the lower end plate portion 8 b of the angle 8. The upward biasing force of the lock rod 10 is transmitted to the slide fitting 6 through the wire 11 and the clamper 7 so that the lock rod 10 and the slide fitting 6 are interlocked. In other words, when the lock rod 10 protrudes largely upward from the angle 8 due to the biasing force of the coil spring 9, the slide fitting 6 is also raised, and when the slide fitting 6 is lowered, the lock rod 10 is also moved to the coil spring 9. It descends against the urging force.

  The door lock device having such a structure is provided on the inner side of the end face of the door 3 opposite to the pivotal support side of the door 3 closed at the end of the double doors 3 and 4, The front surface on which the large-diameter hole 13a and the opening 12 of the round hole 13 are present and the plate portion 8c facing the up-down direction of the bowl-shaped angle 8 are end plate portions on the opposite side to the pivot support side of one door 3. The main body operation part 5 is attached to the height position where the hand can be reached and the angle 8 is attached to the upper end position of one door 3 with screws from the outside of the end face plate part 3a toward the inside of 3a. Reference numeral 33 denotes a screw for fixing the plate portion 8c facing the vertical direction of the angle 8 to the end face plate portion 3a, and 34 denotes a screw for fixing the main body operation portion 5 to the end face plate portion 3a at the position of the screw hole 25. Note that the surface of the main body operation unit 5 where the round hole 13 and the opening 12 are formed protrudes forward by the thickness of the end face plate portion 3a with respect to the upper and lower end portions where the screw hole 25 is formed. And it fits into the cut-out hole 3b formed in the end face plate portion 3a and is exposed to the outside. As described above, the distance between the main body operation unit 5 and the angle 8 attached to the inner side of the end plate 3a on the side opposite to the pivoting support side of one door 3 is the vertical length (height of the door). The length of the wire 11 between the main body operation unit 5 and the angle 8 is adjusted by the clamper 7 so as to match the distance between the main body operation unit 5 and the angle 8. When one of the doors 3 closed in this state is opened, a clamper 7 is lowered by putting a finger into the opening 12 of the main body operation unit 5 and pushing down the horizontal plate 6c at the lower end of the slide fitting 6 to lower the slide fitting 6. The lock rod 10 is lowered via the wire 11, and the upper end of the lock rod 10 is detached from the hole 2 a at the upper end of the storage box 2, so that one door 3 can be opened. When the slide fitting 6 is lowered, the round hole 21 and the locking member 17 provided in the push button 15 are matched, and the locking member 17 is fitted into the round hole 21 by the urging force of the coil spring 16, and the push button is pressed. 15 is pushed forward so that the head 15c is flush with the front end face of the large-diameter hole 13a. In this state, the movement of the slide fitting 6 is stopped, and the lowered state of the lock rod 10 is maintained. When one door 3 that is opened is closed and the closed state is locked, the locking member 17 is removed from the round hole 21 by pushing the push button 15 while the one door 3 is closed, and the lock rod The lock rod 10 is lifted together with the slide fitting 6 by the coil spring 9 that biases 10 upward. The upper end of the lock bar 10 thus raised protrudes from the hole 35 at the upper end of one door 3 and fits into the hole 2a at the upper end of the storage box 2, and the closed state of one door 3 is locked. Become.

  In the embodiment shown in the drawings described above, the closed state is locked at the upper part of the door, but it is also possible to lock the closed state at the lower part of the door or both. That is, when locking the closed state at the lower part of the door, the door locking device may be attached to the door upside down. In that case, the lock rod 10 is urged by the coil spring 9 so as to protrude downward. Become.

1 is an overall perspective view of a door locking device according to an embodiment of the present invention. It is a side view of the locking device of the door. It is sectional drawing in the attachment state of the locking device of the door. It is sectional drawing of the clamper provided in the locking device of the door. It is a perspective view of the substantially upper half of the storage box which provided the locking device of the door. It is the principal part expansion perspective view which looked at the door which attached the locking device of the door from the inner surface side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door lock device 2 Storage box 2a Hole part 3, 4 Double door 3a End face plate part 3b Cutout hole 5 Main body operation part 6 Slide metal fitting 6a Horizontal flat plate part 6b Vertically oriented plate part 6c Horizontal flat plate part 7 Clamper 8 Angle 9 Coil spring 10 Lock rod 10a Wire insertion hole 11 Wire 11a Stopper 12 Opening portion 13 Round hole 13a Large diameter hole portion 13b Small diameter hole portion 14 Inclined portion 15 Push button 15a Shaft portion 15b Tip small diameter portion 15c Head portion 16 Coil spring 17 Stopping member 18 Stopping ring 19 Hole 20 Nut 21 Round hole 22 Long hole 23 Support plate 24 Screw 25 Screw hole 26 Clamper body 27 Holding means 28 Supporting member 29 Ball-shaped holding member 30 Tapered surface 31 Spring 32 Retaining rings 33, 34 Screw 35 hole

Claims (1)

A door locking device embedded in an end surface opposite to the pivoting side of one door closed at the end of a double door that opens and closes the front opening of the storage box. This door locking device is one door. The main body operation unit provided at a height that can be reached by the user, a slide fitting attached to the main body operation unit so as to be vertically movable, a clamper attached to the upper end or lower end of the slide fitting, and one door A lock rod that is supported by an angle provided at the upper end or lower end inside position of the coil so as to be movable up and down in the vertical direction and is biased upward or downward by a coil spring provided in the angle, and a wire that connects the lock rod and the clamper If the clamper clamps the wire by inserting the wire protruding downward or upward from the lock rod vertically Therefore, the length between the lock rod and the clamper can be adjusted by releasing it, and the main body operation section slides in a state where the slide fitting is moved down or up to lower or raise the lock rod. A door locking device comprising a push button for stopping movement of a metal fitting and configured to release the stop holding of the slide metal fitting by pushing the push button.

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