JPH0649790Y2 - Locking device in the cabinet - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is one in which two or more stages of drawers are provided in the cabinet body so as to be movable back and forth, and when one drawer is pulled out, the drawer movement of the other drawer is performed. The present invention relates to the structure of a lock device for preventing double pull-out, which can lock the lock.

[Conventional technology]

Conventionally, a mechanism that locks all drawers into the cabinet body, so-called all lock, and so-called double drawer prevention that disables drawer movement of drawers of other stages when one drawer out of the drawers in the pushed state is pulled out Various devices have been devised which also function as the mechanism of.

As one of the prior arts, for example, in Japanese Utility Model Publication No. Sho 58-14220, a vertical rod is provided on the inner surface of the cabinet so as to be vertically movable, and the cabinet is attached to the front of the drawer by an operating piece attached to the drawer. A rotating member that rotates in the forward direction according to the movement and that changes its posture so as to rotate backward by the backward movement (pushing movement) of the drawer is provided at a position straddling the position of the vertical rod forward and backward. The moving member is provided with a vertical rod pushing upper part that engages so as to raise the vertical rod in response to its forward rotation, and the vertical rod has a stopper piece of another drawer in the pushed state at the raised position. A configuration in which a blocking piece located at the front is provided is disclosed.

[Problems to be solved by the invention]

In the above-mentioned prior art, the vertical rod pushing upper part of the rotary member attached to the cabinet body side is inserted into the hole portion of the vertical rod, and the vertical rod pressing portion is separated from the pivotal supporting portion of the rotary member. Since it is provided, the vertical rod pressing portion can be vertically moved within the hole by a predetermined height in order to raise and lower the vertical rod by a predetermined distance in accordance with the change of the posture of the rotating member. The width of the area must be increased.

Therefore, a vertical rod having a large width is required so that the hole having a large width can be formed.

Further, when changing the posture of each rotating member, the operating piece must move back and forth so as to pass back and forth through this rotating member portion.

Therefore, there is a problem in that the relative front and rear installation positional relationship between the rotating member and the operating piece is limited, and thus the degree of freedom in designing the lock device in the cabinet is lost.

The present invention aims to solve this conventional problem.

[Means for solving problems]

Therefore, according to the present invention, in a cabinet in which a drawer inserted in a plurality of stages in the cabinet body is provided so as to be movable back and forth, in the inside surface of the cabinet body, a vertical rod is vertically arranged facing the outside surface of the side plate of each drawer. Arranged freely,
The vertical rod is provided with a lock body for preventing forward movement of the stopper body in each of the drawers at the raised position of the vertical rod, while on the inner surface of the side of the cabinet body, the lock rod is rotated at each drawer stage position. A crank lever is pivotally supported so as to be vertically rotatable, and the push lever of each of the rotary crank levers is associated with the vertical rod so as to support the vertical rod, and the rotary crank levers are raised by an appropriate distance. As described above, an operating piece for pressing the rotating crank lever in the direction in which the push-up portion moves downward against the spring force when the drawer is pushed is provided on the side surface of each drawer of the drawer. It is a thing.

[Operation and effect of device]

The rotary crank lever pivotally supported on the inner surface of the cabinet body is spring-biased so as to raise the vertical rod, but the rotary crank lever is spring-loaded by an operating piece provided on the side surface of the drawer in the pushed state. Since the vertical rod is pressed down against the force and the vertical rod is lowered, the mounting height position of the rotary crank lever and the operating piece and the mounting position of the caninet body in the front-back direction can be arbitrarily set. There is no limitation on the installation position such as the rotating member, and the lock device in the cabinet can be freely designed.

Further, since the vertical rod is pushed up, the vertical rod and the like are only supported by the push-up portion of the rotating crank lever, so that it is not necessary to increase the horizontal width of the vertical rod, and a compact locking device can be provided. You can do it.

〔Example〕

An embodiment of the present invention will now be described with reference to the drawings. In the drawings, reference numeral 1 is a cabinet body, and reference numeral 2 is a drawer arranged in the cabinet body 1 in multiple stages.
Each drawer 2 is suspended movably back and forth via a pair of left and right suspensions 3,3.

The uppermost front open drawer 6 in the cabinet 1 is also suspended through the suspension 3 in the same manner as described above. Then, the door 5 covering the front of the drawer 6 is rotated in the forward direction so that the door 5 is in a substantially horizontal state.
Is configured to be pushed into the lower surface of the top plate of the cabinet body 1 to the side.

Reference numerals 7 and 7 denote stopper bodies which project outward from the left and right side plates 2a, 2a of the drawers 2 in the left and right directions. The bottom surface of each stopper body 7 is located at a higher position at the rear of the drawer in a side view. The metal plate may be bent and formed so as to be provided with the lower sloped surface 7a in a so-called front downward slope so as to be located at a lower position in the frontward position.

The vertical rod 8 which can move up and down along the left and right side plates 4, 4 of the cabinet body is arranged along a guide frame 9 having a U-shaped cross section.

Reference numeral 10 is a lock body made of synthetic resin such as polyacetal resin for the stopper body 7 of the drawer 2 of each stage.

Corresponding to the drawers 2 of each stage, at a suitable height position on the upper surface side of the suspension 3 of each stage, a metal support 13 fixed to one or both vertical rods 8 with screws 12 or the like.
The lock bodies 10 are rotatably attached to the support shafts 11 protruding from the lock bodies 10. Each lock body 10 has an abutting inclined surface 14 whose upper surface in the side view is higher toward the rear of the cabinet body 1.

On the lower surface side of the lock body 10, an elastic spring body 15 is integrally formed so as to extend rearward and downward from the front end portion, and a projection 16 is integrally formed downward on the lower surface midway portion of the elastic spring body 15. And the free end side of the elastic spring body 15 is curved upward.

The elastic spring bodies 15 of the lock bodies 10 are the support bodies.
The lock body 10 is slidably mounted on the upper surface of a locking portion 17 formed in a bent manner, whereby each lock body 10 can maintain a posture in which its rear end side does not fall downward, and the protruding portion of the elastic spring body 15 is provided.
16 is in contact with the front surface of the locking portion 17 so that the lock body 10 does not rotate upward even if an external force in the forward direction acts on the rear surface of the lock body 10.

When the lock body 10 and the elastic spring body 15 are integrally formed, if they are made of synthetic resin, the effect of further simplifying the molding is exerted.

Reference numeral 18 is a rotary crank lever for vertically moving the vertical rod 8 by an appropriate distance (H1). In the first embodiment shown in FIGS. 2 to 4, the rotary crank lever 18 is A front and rear halfway portion of a rotary crank lever 18 is pivotably supported by a pivot shaft 19 provided on the front side of the cabinet body from a position where the vertical rod 8 is positioned so as to be vertically pivotable, and a front portion of the pivot crank lever 18 faces upward from the pivot shaft 19 in a side view. The upper surface of the rotary crank lever 18 is bent and its upper end is extended forward to form a lower surface of a front portion of the contact portion 18a with respect to an actuating piece 20 which will be described later.
b is provided, and a spring 21 is mounted between the rotary crank lever 18 and the cabinet body 1 side so that the push-up portion 18b side (rear side) of the rotary crank lever 18 rotates upward. To push up the vertical rod 8 by a predetermined distance by contacting and supporting the push-up portion 18b with the vertical rod 8 or an abutment portion of the support 13 or an appropriate lower surface of the lock body 10. To configure.

As shown in FIG. 3, the guide frame 9 is provided with an inclined groove 22 that descends toward the rear of the cabinet body 1, and a large diameter hole portion 22a is provided at the upper end of the inclined groove 22. If the large-diameter head portion 19a of the pivot shaft 19 fixed to the dynamic crank lever 18 can be inserted into the large-diameter hole 22a, the rotary crank lever 18 can be attached to and detached from the cabinet body 1 very easily. However, if the pivot shaft 19 is located at the lower end of the inclined groove 22, it cannot be pulled out at that position and is rotatable. Further, reference numeral 23 is a stopper pin that comes into contact with the lower surface of the front side of the rotating crank lever 18 or the like and does not rotate more than a certain amount (the vertical rod 8 does not rise more than a certain distance).

Reference numeral 25 indicates an all lock mechanism, and the all lock mechanism
25 is a lock 26 such as a cylinder lock attached to the front of the cabinet body, and the lock when unlocking and unlocking with the key 27.
It is composed of a pair of left and right operating rods 29 and 29 that swing up and down in conjunction with the eccentric member 28 of 26, and vertical operating rods 30 and 30. The pair of left and right operating rods 29 and 29 are attached to the lower surface of the top plate of the cabinet body 1. The two operating rods 29, 29 are rotatably supported at their midpoints by the pin support shaft 31, while the operating rods 29,
The proximal end of the operation lever is rotatably connected by a pin,
A pair of upper and lower guide pieces 32, 32 project forward from 29, and an eccentric member 28 at the rear part of the lock 26 rotatably mounted on the front surface of the cabinet body 1 is inserted between the guide pieces 32, 32. .

The tip ends of the pair of left and right operating rods 29, 29 are the upper and lower operating rods 30, 30.
Is hung from its vertical locking hole 33, and both left and right vertical operating rods are
The pin levers 34 at the lower ends of 30, 30 are made to face the vertically long engagement grooves 35 of the pair of left and right vertical rods 8, 8 and the tip ends of the pair of left and right operation rods 29, 29 are raised, so that the left and right vertical rods 8 When the and 8, are raised by a predetermined distance, the lock body 10 on each of the vertical rods 8 is located in front of the stopper body 7 in the drawer 2 in the pushed state, which can prevent the drawer 2 from moving forward and can be locked so that it cannot be opened and closed. It is a composition.

Further, the rear end of the engaging claw piece 24 that is vertically rotatable is locked to each of the pin levers 34, and when the engaging claw piece 24 is rotated downward, the door 5 is locked so that it cannot rotate. It is composed of.

With this configuration, when the drawers 2 and 6 of all stages are pushed in and the door 5 is closed and the lock 26 is rotated in the locking direction by the key 27, the other ends of the left and right operating rods 29 and 29 are raised. Then, the door 5 is locked by the engaging claw pieces 24 of the vertical operating rods 30 and 30, and the vertical surface of the vertical rods 8 and 8 raises the rear surface of the lock body 10 to the drawers 2 and 6 of the respective stages. It is located on the front surface of the stopper body 7 in and can prevent the movement of all the drawers in the forward direction.

Then, when the all-lock mechanism 25 is unlocked, the vertical rods 8 and 8 are lowered, and the front end of the engaging claw piece 24 is disengaged from the door 5, while each lock body 10 in the vertical rod 8 is a stopper in the drawer 2 of each stage. It becomes possible to descend to a position below the body 7.

On the other hand, if each drawer 2 is pushed in, its operating piece 20
Pushes up the front lower surface of each rotary crank lever 18 against the force of the spring 21.
The rear push-up portion 18b of the lock body 10 is separated downward from the location of the lock body 10 or the like (see the chain double-dashed line in FIG. 3), and the vertical rod 8 descends by a predetermined distance (H1), so that the upper surface of the lock body 10 is stopped. 7 can pass in the front-back direction (see FIG. 5).

In this state, as shown in FIG. 6, when one arbitrary drawer 2 is pulled out, the stopper body 7 at that stage is locked by the lock body.
While passing the upper surface of 10 forward, the operating piece 20 moves forward,
As a result, the force of the spring 21 acts so that the rear portion of the rotary crank lever 18 in the relevant stage rotates upward, and the push rod 18b of the rotary crank lever 18 raises the vertical rod 8 by the dimension (H1). Let

Therefore, the rear surface of the lock body 10 is located on the front surface of the stopper body 7 on the side surface of the drawer 2 in the other stage, which prevents the drawers 2 from moving forward and prevents so-called double withdrawal. It is possible to prevent the cabinet body 1 from falling forward.

On the contrary, if the drawer 2 pulled out to the front is pushed in, the operating piece 20 in the drawer 2 pushes the rotating crank lever 18 upward at the abutment portion 18a on the lower surface of the front portion thereof, so that the rotating crank lever 18 rear portion The pressing portion 18b of the vertical rod 8 or the position where it is supported by the lock body 10 is moved downward, and the vertical rod 8 is lowered so that the stopper body 7 is provided on the upper surface side of the lock body 10 as described above.
Can be passed back and forth.

Moreover, in the present embodiment, the protrusion 16 protruding to the lower surface of the elastic spring body 15 of each lock body 10 in the middle of the support body 13 is formed.
Even if the stopper body 7 collides with the rear surface of the lock body 10 at a position higher than the support shaft 11, it does not move upward even if the stopper body 7 is higher than the support shaft 11. It is possible to prevent the drawer from moving forward.

Even if two or more drawers 2 are accidentally pulled out at the same time, the vertical rod 8 is raised so as to prevent the above double withdrawal.

When only one drawer 2 is pushed in from this state, the lower sloping surface of the stopper body 7 in the squeezing drawer 2 comes into contact with the abutting sloping surface 14 of the raised lock body 10, and the lock body 10 is elastic spring. The stopper body 7 can pass to the rear position of the lock body 10 while pushing down and rotating rearward and downward against the upward force of the body 15, and after the passage, the lock body 10 is an elastic spring body.
The elastic force of 15 restores the original posture, and the stopper body 7 at that stage can no longer move forward.

Since such rotation of the lock body 10 operates independently of each other by contact with the stopper body 7 of each stage, even when the other drawer 2 is pushed in later, the lock body of that stage is locked. It is possible to bring the stopper body 7 into contact with 10 and rotate only the lock body 10 against the elastic force of the elastic spring body 15. They can be pushed in one by one, and even in that case the double withdrawal prevention mechanism is not damaged.

7 and 8 show another embodiment, in which the side view L is lateral.
The base end of the horizontal portion 26a of the character-shaped rotary crank lever 36 is rotatably attached to the side plate of the cabinet body 1 or the guide frame 9 or the like.
While supporting and urging the middle portion of the horizontal portion 36a of the rotary crank lever 36 in the front-rear longitudinal direction upward by the spring 38, the vertical rod is pushed by the push-up portion of the horizontal portion 36a of the rotary crank lever 36. Slider made of synthetic resin protruding from 8 etc.
It is configured to support 39 etc. and raise it by a predetermined distance (H1) (see the solid line state in FIG. 7).

Then, when the operating piece 40 of the drawer 2 in the pushed state hits the downward contact portion 36b at the front end of the rotary crank lever 36, the rotary crank lever 36 is rotated downward against the force of the spring 38, The vertical rod 8 is configured to be lowered by a predetermined distance (H1) (refer to the chain double-dashed line in FIG. 7).

Reference numeral 41 is a stopper pin that restricts the rotating crank lever 36 from rotating upward by a predetermined distance or more, and is a lock body.
The configuration of 10 and the like is the same as that of the above-mentioned embodiment.

Even with this configuration, it is possible to surely achieve the double drawer withdrawal preventing action as in the above-described embodiment.

It should be noted that if the spring 42 is mounted at a position largely separated from the shaft 37, which is the fulcrum of rotation, as shown by the one-dot chain line in FIG. 7, a large biasing force can be applied to the rotary crank lever with a weak spring.

Further, the same action and effect can be obtained even if the direction of the rotary crank lever 36 in the embodiment of FIG.

That is, the shaft 37 on the base end side of the rotating crank lever 36 is connected to the vertical rod 8
The contact portion 36b which is positioned further forward and protrudes upward with respect to the horizontal portion 36a is rearranged so as to be behind the vertical rod 8, and the operating piece 40 is provided near the rear portion of the side plate 2a of each drawer 2. The operating piece 40 of the drawer in the pushed-in state.
When the contact portion 36b is pressed rearwardly, the vertical rod 8 may be lowered.

Further, in the embodiment in which the front and rear midway portions of the front and rear longitudinal crank levers are used as the pivots as in the embodiment of FIG. 3, the pivots are located in front of the vertical rod, and the pivot crank levers are located in front of the vertical rods. When a contact portion for the operating piece is provided on the rear side, the contact portion is bent downward, and the operating piece of the drawer in the pushed state is pressed against the front surface thereof so that the push-up portion on the front end side of the rotary crank lever is pushed. It should be constructed so that it can be downward from the vertical rod.

It goes without saying that the spring urging force is provided in a predetermined direction in each of these embodiments.

It goes without saying that the structure of the locking device of the present invention can be applied to both the case where the cabinet with the end plates is provided in multiple stages on the cabinet body, and the case where the drawer with the flip-up rotary door is provided in multiple stages.

In the present invention, the all-lock mechanism can be associated with the vertical rods, the complexity of the structure can be avoided, the work such as mounting is extremely simple, and the number of mounting parts is extremely small and the structure is simple. Becomes

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a perspective view of the main body of the cabinet, Fig. 2 is a perspective view of essential parts, Fig. 3 is a side view of essential parts, and Fig. 4 is a IV-IV line of Fig. 3. FIG. 5 is a side sectional view in a visible state, FIG. 5 is a side view illustrating a state in which the drawer can be pulled out, FIG. 6 is an action explanatory view in a double-drawer-prevented state, and FIG.
The drawing is a sectional view taken along line VIII-VIII of FIG. 1 ... Cabinette body, 2 ... Drawer, 3 ... Suspension, 7 ... Stopper body, 7a ... Down inclined surface, 8 ... Vertical rod, 9 ... Guide frame, 10 ... Lock body, 11 ... Spindle, 13
…… Supporting body, 14 …… Abutting inclined surface, 15 …… Elastic spring body, 16
...... Projection part, 17 …… Locking part, 18,36 …… Rotating crank lever, 19 …… Axis, 37 …… Axis, 21,38,42 …… Spring, 20,4
0 …… Operating piece, 23,41 …… Stopper pin, 25 …… All lock mechanism.

Claims (1)

[Scope of utility model registration request] 1. A cabinet in which a drawer inserted in a plurality of stages in a cabinet body is provided so as to be movable back and forth, and a vertical rod is vertically movable on an inside surface of the cabinet body facing an outer surface of a side plate of each drawer. The vertical rod is provided with a lock body for preventing forward movement of the stopper body in the drawer of each stage at the raised position of the vertical rod, while the drawer stage is provided on the inner side surface of the cabinet body. The pivoting crank levers are pivotally supported up and down for each position, and the push levers of the pivoting crank levers are associated with each other so as to support the vertical rods.
The vertical rod is biased by a spring so as to raise an appropriate distance, and the side surface of each of the drawers has a rotation crank lever in a direction in which the push-up portion moves downward against the spring force when the drawer is pushed. A locking device for a cabinet, comprising an operating piece for pressing.