JPH0440370Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention allows one sliding door to move horizontally in a straight line at the storage door so that it can be opened and closed, and the other sliding door to be displaced to the front position of one sliding door. , relates to a locking device for a storage sliding door that can open and close one sliding door or the other sliding door singly or both at the same time.

[Conventional technology]

Conventionally, there is a storage sliding door in which the surfaces of two sliding doors are flush when closed, and both sliding doors are displaced back and forth and move laterally when opened. The locking devices for these sliding doors are also provided in the same way, but one sliding door simply moves horizontally at the storage door, and the other sliding door is moved horizontally to the front position of one sliding door. The present inventor has separately proposed a sliding door in which the other sliding door is opened and closed by moving laterally at the same time as one sliding door or independently.

[Problem that the invention attempts to solve]

There is a desire for a simple locking device for such sliding doors, so-called flat doors.

In view of this situation, the present invention aims to provide a locking device for these sliding doors.

[Means for solving problems]

The present invention, which aims to provide a locking device for the sliding door, has the following points.

That is, in the present invention, when the sliding door is in the closed state, the surface of the sliding door is approximately flush with the surface, one sliding door moves horizontally in a straight line to open and close the storage door, and the other sliding door moves to the front position of one sliding door to retreat or open/close. In a sliding door of a storage body that operates, a latch rod is hung horizontally so as to be movable laterally with one end exposed to the handle provided on the front side of both sliding doors, and the other end of the latch rod is pivoted at the middle to the sliding door. One end of the crank rod is pivotally connected, and the other end of the crank rod is pivotally connected to the sliding door, has a plurality of pivot points on the outer periphery, and has a rod operating section that rotationally displaces the pivot points by rotating itself. At the same time, the base ends of upper and lower cannula rods attached to the sliding door are respectively pivotally connected to the pivot points on both sides of the rotation center of the rod operation part so that they can move up and down from the upper and lower ends of the sliding door. Alternatively, the base end is pivoted to the pivot point on the lower part, and the other end is an opening provided at the same position on the opposite edge of both sliding doors, whereas on one sliding door side, the tip faces the opposite edge opening when unlocked, and the end faces the opposite edge opening when locked. On the other sliding door side, a locking rod is provided with a length so that it is recessed into the opposite edge opening, and on the other side of the sliding door, a locking rod is provided with a length so that its tip is located in the opposite edge opening when unlocked and protrudes when locked. The cantilever rod of one sliding door is loaded with a spring in the unlocking direction, and the cantilever rod of the other sliding door is loaded with a spring in the locking direction. Engagement recesses are provided at appropriate locations on the edge.
An engagement piece that engages and disengages from the engagement recess is provided in a protruding manner, and a stopper lever is laterally slidable and is biased by a spring so that one end thereof protrudes from the opening on the outer edge of the other sliding door when the door is unlocked. When one sliding door is unlocked, the rod operation part rotates through its latch rod and crank rod, and the upper and lower cannula rods are retracted accordingly, and the locking rod faces the opposite edge opening and locks the locking rod of the other sliding door. When one sliding door is opened, the unlocked state is maintained by the spring force, and when one sliding door is locked or closed, it operates in the opposite manner, and when the other sliding door is unlocked, the latch is maintained. The rod operation part rotates through the rod and crank rod, and the upper and lower cantilever rods and locking rod are retracted accordingly, and when the other sliding door is opened, the cannibal rod is retracted and the tip of the stopper rod moves away from the side edge of the storage body. As a result, the engagement recess and the engagement piece engage, and the tip of the stopper rod protrudes from the opening on the outer edge of the sliding door to maintain the unlocked state, and when the other sliding door is closed, the edge of the storage body The protruding end of the stopper rod comes into contact with and pushes inward, and the engagement between the engagement recess and the engagement piece is released, and the spring tension returns the stopper rod to the locked state, thereby opening the storage sliding door. This relates to a locking device.

[Effect]

Since the present invention is constructed as described above, when the latch rod of one sliding door is operated and moved in the unlocking direction, the upper and lower latch rods are unlocked, and the locking rod is moved toward the opposite edge of the sliding door. Then, the locking rod with the protruding tip of the other sliding door is recessed into the sliding door, and based on this movement, the upper and lower cannula rods of the other sliding door are moved in the unlocking direction, and at the same time, the stopper is moved against one of the upper and lower cannula rods. The engaging piece of the rod engages to maintain the open state, and in this state, one sliding door can be operated to open it, or the other sliding door can be opened while being displaced to the front position of one sliding door. .
To release the locking device of the other sliding door when both sliding doors are closed, operate the latch rod of the other sliding door to release the lock, that is, pull the tip of the locking rod into the interior through the opposite edge opening of the other sliding door. By doing
Naturally, the upper and lower locking rods move in the unlocking direction, and one of the locking rods engages with the stopper rod to maintain the unlocked state, and at the same time, one of the sliding doors that was being pushed by the tip of the locking rod moves. The locking rod moves in the opening direction of the opposite edge, and the upper and lower bolt rods of one sliding door move in the unlocking direction by the force of the spring, thereby unlocking one sliding door. That is, by operating each latch rod end of both sliding doors inside the handle to unlock each sliding door, each sliding door is unlocked, and when the sliding door is locked, the other sliding door is returned to its original closed position. By bringing the side end of the stopper rod protruding from the opening of the outer edge of the sliding door into contact with the side edge of the storage body, the engagement relationship between the engagement recess of the cannula rod and the engagement piece of the stopper rod is released, and the other Each locking rod of the sliding door is locked, and the tip of the locking rod protrudes from the opening on the opposite edge in the direction of one of the sliding doors, pushing the locking rod of one sliding door inward from the opening, that is, toward the inside of the sliding door, and then locking the door. When the upper and lower latch rods are rotated in the locking direction, the latch rods also return to their original positions inside the handle.

Since the device performs locking and unlocking operations, when each sliding door is simply opened, the pushing force is applied to the tip of the latch rod of each locking device, thereby locking or unlocking one sliding door. This storage sliding door opens and closes while the other sliding door is moved in a horizontal straight line and the other sliding door is displaced to the front position of one sliding door, and the other sliding door can be unlocked at the same time and also easily locked. This makes it possible to provide a simple locking device.

〔Example〕

The details of the present invention will be explained based on further illustrated embodiments.

Fig. 1 is an explanatory diagram showing a cross section of a storage unit in which a sliding door incorporating the present invention is set flush, and 1 in the figure.
is the storage body, and 2 and 3 installed at the doorways are one sliding door and the other sliding door. One sliding door 2 moves horizontally in this doorway in a straight line to open and close the door, and at the same time, the other sliding door 3 is displaced forward of one sliding door 2 and is displaced by an operating device (not shown) to open and close one sliding door 2. The sliding door 3 can be moved into the space of the other sliding door 3 that has been evacuated, or the other sliding door 3 can be opened and closed in the front position of the sliding door 2. In the figure, 4 is the opposing edge of one sliding door, and 5 is the opposing edge of the other sliding door.

Next, what is shown in FIG. 2 is the one sliding door 2.
is set on the right side in the figure, the other sliding door 3 is set on the left side in the figure, both sliding doors 2 and 3 are arranged in a separated state, and each locking device is installed. A locking device for the sliding door is provided on the inner surface of the second sliding door, and a locking device for the sliding door is provided on the inner surface of the other sliding door. That is, what is shown as 6, 6a in the figure is the latch rod of each sliding door 2, 3, which is supported so as to be able to move laterally on the inner surface of the sliding door, and the tip of each latch rod 6, 6a is a pull part horizontally installed on the front side of the sliding door. 7, 7a are exposed. The tips of the latch rods 6, 6a are pivotally connected at their intermediate positions to the upper ends of crank rods 8, 8a, which are pivotally connected to the sliding door, in order to convert the lateral movement into rotational movement. The lower end is pivotally attached to the inner surface of the sliding door, has a plurality of pivot points on the outer periphery, and has a rod operating portion 9, 9a for displacing the pivot points by rotating itself.
That is, on one sliding door 2 side, there is a plate-shaped operation part 9 that is cross-shaped when viewed from the front, and on the other sliding door 3 side, there is a chevron-shaped operation part 9a.
It is pivoted to. That is, the crank rods 8, 8
The lower end of a is pivotally connected to the operating pieces 9-1, 9a-1 located at the upper ends of the rod operating parts 9, 9a, and the operating pieces 9-2, 9-3, 9a-2, 9 located on both sides thereof.
In a-3, upper and lower cannula rods 10, 10', 10
The proximal ends of a and 10b are pivotally connected. The upper and lower ends of the canopy rod face outward from the opening so that they can protrude and retract outward from the upper and lower ends of the sliding door, and are supported so as to be movable up and down.

Next, from the lower operating piece 9-4 of the cross-shaped operating part 9 on one sliding door 2, and from the lower operating piece 9-4 of the cross-shaped operating part 9 on the rod operating part 9, 9a in the illustrated example, and on the other sliding door 3. Upper operation piece 9a-1 of chevron-shaped operation part 9a
From this, each locking rod 11, 11a is provided in the opposite edge 4, 5 direction of each sliding door, that is, in the lateral direction. On the other hand, the sliding door 2 has a length such that its tip faces the opposite edge opening 12 when unlocked, and retracts to the back when locked. That is, the locking rod 11
Inside, 13 is a guide slot, and 14 is a guide pin attached to the sliding door body. On the other side of the sliding door 3, there is a locking rod 1 whose length is set such that its tip is located within the opposite edge opening 12a when unlocked, and protrudes when locked.
The locking rod 11 of one sliding door 2 and the locking rod 11a of the other sliding door 3 will be explained in more detail with reference to the explanatory diagram of FIG. In FIG. 3A, the locking rod 11 of the one sliding door 2 is recessed into the interior of the sliding door, that is, the upper and lower locking rods 10,
10' is in a locked state, and at this time, the tip of the locking rod 11a of the other sliding door 3 is inserted into the opening 12 located at the tip of the locking rod 11 of one sliding door 2, and from this state both sliding doors are closed. To unlock locks 2 and 3, as shown in FIG. 11
The other sliding door 3 can be displaced in the direction of the arrow in the figure, that is, in the direction of the front surface position of one sliding door 2, only after the tip is displaced to a state facing the opening 12 of the opposite edge,
Moreover, one of the sliding doors 2 can be moved into the space after this displacement.

Next, in such a locking device, the upper and lower bar rods 10, 10' of one sliding door 2 are always inward,
In other words, if the sliding door is elastically biased in the locking direction, when the sliding door is operated after unlocking, the cannula rods 10,1
0' Each tip can be prevented from coming into contact with the inner surface of the storage body,
Moreover, it facilitates the unlocking operation, and for this purpose, a tension spring shown as 15 in the figure is provided between the storage body and, for example, the upper cannula 10.

In principle, even if other stabilizing devices (not shown) or a tension spring in the locking direction are provided without the tension spring 15, the basic movement of each locking device on one sliding door can be maintained at a minimum. be done.

Also, each cannula bar 10a, 10 of the other sliding door 3
Since it is desired to always apply elasticity in the locking direction to b, a tension spring shown as 16 in the figure is fixed, for example, between the upper cannula rod 10a and the inner surface of the sliding door. In addition, 17 in the figure is the upper cannuki rod 1.
It is an engagement recessed portion opened on the edge side of 0a, and 1
8 is an engagement piece for engaging with the engagement recess 17, and the engagement piece 18 is horizontally movable on the inner surface of the other sliding door 3, for example, by guide pieces 19, 19. It is provided on the stopper rod 20 and is elastically biased by a push spring 21 in a direction in which the engagement recess 17 and the engagement piece 18 are always engaged. Therefore, when the upper cantilever rod 10a is unlocked, the engagement piece 18 always fits into the engagement recess 17, and the locking device of the cantilever rod 10a, that is, the other sliding door 3, cannot be operated.

Moreover, what is shown as 22 in the figure is a protruding end that protrudes from the opening 23 on the outer edge of the sliding door side of the stopper rod 20, and in the unlocked state, the protruding end 22 of the stopper rod 20 is located at the edge of the other sliding door 3 side. The stopper rod 20 is located outside through the opening 23 provided in the sliding door, and when the door is locked, it comes into contact with the side edge of the storage body 1 and is retracted into the inside of the sliding door, that is, the stopper rod 20 is moved to the right in the figure, and the upper cannula rod 10a can be moved in the locking direction. In addition, 24 provided on the other sliding door 3 in the figure is an upper sub-locking rod, and 25 is a lower sub-locking rod, which are related to each of the upper cannula rod 10a and the lower cannula rod 10b.

As described above, in the locking device for the storage sliding door according to the present invention, if the latch rod 6 of one sliding door 2 is operated in the unlocking direction within the handle part 7, each of the upper and lower latch rods 10, 1
0' moves in the unlocking direction, and the locking rod 11 moves to protrude in the direction of the other sliding door 3. This responsive action causes the tip of the locking rod 11a of the other sliding door 3 to be recessed into the interior of the other sliding door 3, and in response to this action, the upper and lower cantilever rods 10a, 10b of the other sliding door 3 are unlocked, and the upper and lower secondary locking rods are also unlocked. 24 and 25 are also unlocked, the engagement recess 17 moves downward, and the engagement piece 18 of the stopper rod 20 fits into the engagement recess 17 to maintain this unlocked state. be.
In this state, one sliding door 2 and the other sliding door 3 are simultaneously unlocked, and each sliding door can be opened individually or both at the same time.

Next, in order to lock the locking device of each sliding door, return one of the sliding doors 2 to its original position. To return the other sliding door 3 to the closed position, use the stopper rod 20.
The protruding end 22 protruding from the side edge of the sliding door hits the inner surface of the side wall of the storage body, moves to the right in the figure against the pressing force of the push spring 21, and engages with the engaging recess 17 of the upper cannula rod 10a. The engagement of the joint pieces 18 is released and the upper and lower cannula rods 10a are moved by the force of the tension spring 16.
Lock 10b in the vertical direction. In response to this operation, the rod operating portion 9a rotates clockwise, and the locking rod 11
The tip of a slides into the opening 12 of one sliding door 2 from the opposing edge opening 12a. Then, in response to this movement, the tip of the locking rod 11 of one sliding door 2 is pushed inward, immersed inside the sliding door, and rotates the rod operation part 9 to the left, resisting the spring force of the tension spring 15. At the same time as the upper and lower cantilever rods 10, 10' are moved in the vertical direction and locked, the tips of the latch rods 6, 6a of each sliding door are returned to their original positions within the pull portions 7, 7a.

The locking device according to the present invention made in this way is
One sliding door 2 moves horizontally at the storage door, and the other sliding door 3 is displaced to the front position of one sliding door 2, and moves horizontally in a straight line to perform opening/closing operations. With such a sliding door, the entire lock can be opened simply by operating one of the latch rods 6, 6a, and the entire lock can be locked simply by returning the other sliding door 3 to the closed position. This provides a convenient locking device that is simple, trouble-free, and does not rattle.

Note that the transmission relationship between the unlocking and locking operations of one sliding door 2 and the other sliding door 3 is performed only by the responsive movement of one locking rod 11 and the other locking rod 11a, so the operation is simple, and therefore, This provides a simple and stable locking operation without causing any damage to the locking rod or other members.

[Effect of idea]

Since the locking device for the storage sliding door according to the present invention has the above-described configuration, one sliding door moves horizontally and linearly at the storage door, and the other sliding door is displaced to the front position of the one sliding door. to move horizontally in a straight line. The sliding door of the storage unit is easy to operate; simply operate the handle of the other sliding door to unlock it against the spring force of the bar, and the locking rod of the other sliding door will lock. In response to the separation from the tip of the locking rod, the locking rod of one sliding door becomes unlocked due to its spring force, or the handle of one sliding door is operated to unlock it. Just by doing this, the locking rod of one sliding door faces the opening on the opposite edge, causing the locking rod of the other sliding door to retract, and in response, the locking rod of the other sliding door resists the spring force and becomes unlocked. . In addition, when the lever of the other sliding door is in the unlocked state, the engagement piece of the stopper lever engages with the engagement recess formed on the side edge of the other sliding door, maintaining the unlocked state even if the handle is released. It can be done. In this state, both sliding doors can be moved laterally freely and the doorway of the storage body can be opened. On the other hand, when both sliding doors are moved to close, the tip of the stopper rod that was protruding from the outer edge of the other sliding door comes into contact with the side edge of the storage body and is pushed inward, and the engaging piece of the stopper rod and The engagement relationship between the engagement recesses of the cannula rods is released, and the upper and lower cannula rods protrude from the upper and lower ends of the other sliding door due to the spring bias of the cannula rods, automatically becoming locked, and at the same time, the other sliding door is locked. The locking rod faces the opposite edge opening, and the locking rod of one sliding door is recessed, so that the locking rod of one sliding door protrudes from the upper and lower ends against the spring bias, and the door is automatically locked. can.

That is, a simple locking device is provided in which both sliding doors can be unlocked by unlocking either sliding door, and even when locked, both sliding doors can be locked by simply returning the other sliding door to the closed position. It will be done.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the storage body for incorporating the locking device according to the present invention, Fig. 2 is a front explanatory view of the locking device, and Fig. 3 is a plan explanatory view for explaining the relationship between both locking rods. . 1... Storage body, 2... One sliding door, 3... Other sliding door, 4... Opposing edge of one sliding door, 5... Opposing edge of the other sliding door, 6, 6a... Latch rod, 7, 7a
...Hold part, 8, 8a...Crank rod, 9, 9a
... Rod operation section, 10, 10', 10a, 10b
...Kanuki rod, 11, 11a...Lock rod, 1
2, 12a...Opposing edge opening, 13...Elongated hole for guide, 14...Guide pin, 15...Tension spring, 16
... tension spring, 17 ... engagement recess, 18 ... engagement piece, 19 ... guide piece, 20 ... stopper rod,
21...Press spring, 22...Protruding end, 23...Opening, 24...Sub-locking rod, 25...Sub-locking rod.

Claims (1)

[Scope of utility model registration request] In the closed state, the surface of the sliding door is almost flush, one sliding door moves horizontally in a straight line to open and close the storage door, and the other sliding door moves to the front position of one sliding door to retreat or open/close. In this sliding door, the latch rod is horizontally movable with one end exposed to the handle provided on the front side of both sliding doors, and the other end of the latch rod is
The middle part is pivotally connected to one end of the crank rod, which is pivotally connected to the sliding door.
The other end of the crank rod is pivotally connected to the sliding door, has a plurality of pivot points on its outer periphery, and is pivotally connected to a rod operating section that rotationally displaces the pivot points by rotating itself. The base ends of the upper and lower cannula rods attached to the sliding door are respectively pivotally connected to the pivot points on both sides of the rotation center of the sliding door so that they can move up and down from the upper and lower ends of the sliding door, and at the pivot points on the upper or lower part of the rod operation part. The base end is pivoted and the other end is an opening at the same position on the opposite edge of both sliding doors, whereas on one sliding door side, the length is such that the tip faces the opening on the opposite edge when unlocked and retracts deep when locked. A set locking rod is provided on the other sliding door side, and a locking rod whose length is set such that the tip is located within the opposite edge opening when unlocked and protrudes when locked is provided on the other sliding door side. A spring bias is applied in the unlocking direction, and a spring bias is applied in the locking direction in the cantilever rod of the other sliding door, and an engaging recess is provided at an appropriate position on the side edge of one of the upper and lower cannula rods on the opposite edge side. A stopper rod is provided so as to be slidable in the lateral direction, and an engagement piece that engages and disengages from the engagement recess is protrudingly provided, and a stopper lever is provided that is spring-loaded so that one end thereof protrudes from the opening on the outer edge of the other sliding door when the door is unlocked. When one sliding door is unlocked, the rod operation part rotates via its latch and crank rods, and the upper and lower cannula rods are retracted accordingly, and the locking rod faces the opposite edge opening to lock the other sliding door. The lever is pushed in, and when one sliding door is opened, the unlocked state is maintained by the spring force.When one sliding door is locked or closed, it operates in the opposite manner, and when the other sliding door is unlocked, The rod operation part rotates through the latch rod and crank rod, and the upper and lower cannula rods and locking rods retract accordingly. When the other sliding door is opened, the cannula rod is retracted and the tip of the stopper rod is at the side edge of the storage body. When the sliding door is separated from the sliding door, the engaging recess and the engaging piece engage with each other, and the tip of the stopper rod protrudes from the opening on the outer edge of the sliding door to maintain the unlocked state, and when the other sliding door is closed, the storage door is closed. The protruding end of the stopper rod comes into contact with the side edge of the body and is pushed inward to release the engagement between the engagement recess and the engagement piece, and the stopper rod returns to the locked state due to the spring bias. Sliding door locking device.