JPH09151647A - Latch device for drawer of cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate drawer pull-out operation by providing a latch at both ends on the right and left of a drawer and a latch release mechanism which is in the interlocking relationship with a knob of the drawer in a lateral open type cabinet which is used in an office. SOLUTION: A lateral open type cabinet is constituted by providing a front open type drawer which can move forward and backward freely in a case and a door plate which can be opened and closed freely in its upper part and is stored in the case. When a knob 7 at the center on a front face of the drawer is pulled forward by applying a hand on it, the knob 7 is turned, and a support shaft 8 fixed on the knob 7 is also turned. A vertical rise part 8a at both ends of the support shaft 8 pushes an operation rod part 9a of a latch 9 against a coil spring 14, and the latch 9 is turned horizontally around a vertical shaft 10 to make a locking hole 9b come off a locking part provided inside the case of the cabinet. Consequently, the latch 9 provided at both ends of the drawer is released by merely applying a hand on the knob 7 of the drawer so that the drawer can be pulled out easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer latch device in a lateral open type cabinet used in offices and the like.

[0002]

2. Description of the Related Art A conventional latch device in this type of lateral open type cabinet is, for example, an actual open flat 62-17636.
As can be seen in Japanese Patent No. 5, a latch is attached to one side of the front end of the drawer so that it can move left and right, and a latch provided in the middle of the front of the bottom plate is slid to move the latch horizontally in the release direction. It can be done.

[0003]

However, in the above-described conventional latch device, since the latch function (locking function) works only on one side end of the drawer and the other side can be freely drawn out, a wide cabinet can be used. The strain may occur due to the pop-out operation of the drawer, the excessive pull-out operation, or the like, and the latch may be disengaged or the latch device may be damaged.

If the latching mechanism is used at the left and right ends of the drawer by the engaging means by the left and right movement of the latch, the moving directions of both latches by the knob operation must be opposite to each other. However, the structure of the latch device becomes complicated as a whole because a device is required to be linked to the left and right latches.

Further, in the conventional latch device, the operating direction of the knob is the same as the left-right direction of the moving direction of the latch, which is completely different from the pulling-out direction of the drawer, and when pulling out the drawer, two operation directions different from each other ( There is also a drawback that it requires a latch release operation and a pull-out operation).

In view of the above-mentioned drawbacks of the conventional apparatus, an object of the present invention is to provide latches on the left and right ends of the drawer,
It is an object of the present invention to provide a latch device having a simple structure and a simple operation and linked with a puller.

[0007]

According to the present invention, the above-mentioned problem is solved as follows. (1) In a cabinet in which a drawer having an opening on the front surface is arranged to be movable back and forth in a housing having an opening on the front surface, the drawer is provided on both left and right inner side surfaces of the housing on both left and right front end portions of a bottom plate of the drawer. While supporting a spring-biased latch that can be engaged and disengaged with the locking part, at an intermediate position between the left and right latches,
A puller is rotatably pivotally supported, and the left and right ends of the pivot shaft are respectively attached to the latches, and the engagement between the latches and the locking portion of the housing can be released by pivoting the puller. I worked together in this way.

(2) In the above item (1), a puller is rotatably pivoted forward about a horizontal pivot shaft at an intermediate position between the left and right latches, and the horizontal pivot shaft is also rotatable. The vertical rising portions formed at the left and right ends of the latch are brought into contact with the rear surface of the operating rod portion of the latch that can rotate about the vertical axis.

(3) In the above item (1) or (2), the front cover attached to the front end of the drawer bottom plate is equipped with a latch and a puller.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The lateral open type cabinet (A) shown in FIG. 4 has an opening on the front surface of its housing (1).
A front open type drawer (2) is arranged so as to be movable back and forth, and a door plate (4) for closing the storage space formed above the bottom plate (3) of this drawer (2) is provided so that it can be opened and closed upward. It will be. The door plate (4) should be placed horizontally when the door is opened,
It is pushed into the housing (1) and accommodated.

A front cover (5) extending in the left-right direction is fixed to the front end of the bottom plate (3) of the drawer (2). A pull tab (7) is provided in the central recess (6) of the front cover (5).

A front cover, as shown in FIG.
A latch device having a puller (7) in the center is housed inside (5). The latch device includes a horizontal pivot shaft (8) fixed to the lower end of the pull tab (7) and extending in the left-right direction.
Although not shown, the pivot shaft (8) is appropriately pivotally attached to the front cover (5). Therefore, the pull tab (7), together with the pivot shaft (8), can pivot forward by an angle θ, as shown in FIG.

The tip end of the horizontal pivot shaft (8) extending in the left-right direction is bent upward as shown in FIG. 1 to form a vertical rising portion (8a). This vertical rising part (8a)
Is in contact with the rear surface of the operating rod (9a) of the latch (9).

The vertical axis (10) of the latch (9) is the front cover.
It is pivotally supported on (5). A latch hole (9b) is formed on the side surface of the latch (9). The locking hole (9b) is a locking portion provided so as to project inward from the inner surface (1a) of the housing (1).
Engage with (11).

The above-mentioned operating rod portion (9a) projects at a right angle from a position closer to the vertical shaft (10) than the locking hole (9b). A coil spring (14) is arranged between the projection (12) on the front surface of the operating rod (9a) and the recess (13) on the inner surface of the front cover (5), whereby the latch ( 9) is the inner surface (1a) of the housing (1)
The locking portion (11) is engaged with the locking hole (9b) by being urged toward.

With this structure, first, the hand of the door plate (4) as shown in the upper part of FIG.
Open (4) upwards to the horizontal position, then
When this is pushed into the cabinet, the state shown in the middle of FIG. 4 is obtained.

At this time, when the puller (7) at the center of the front face of the drawer (2) exposed at this time is applied with a force to pull it forward, as shown in FIG. 3, the puller (7) moves forward by an angle θ. Only rotate.
With this rotation of the pull tab (7), the pivot shaft (8) also rotates, so that the vertical rising portions (8a) at both ends of the pivot shaft (8), as shown in FIG. The rear surface of the operating rod (9a) of the latch (9) is pushed against the force of the coil spring (14), the latch (9) horizontally rotates about its vertical axis (10), and the locking hole (9b) is disengaged from the locking part (11) of the inner part (1a) of the housing (1).

In this way, when the latches (9) on both sides are disengaged from the respective locking portions (11), the drawer (2) is moved to the position shown in FIG.
It can be pulled out forward as shown in the lower row.

[0019]

According to the present invention, when the drawer is stored, the latches on both the left and right sides are engaged with the engaging portions of the cabinet of the cabinet by urging, and both the left and right sides of the drawer are held so that they cannot be pulled out. , Only one side of the drawer can be pulled out.

Since the front end face of the bottom plate can be made a flat surface without any protrusion by arranging a puller behind the front end face of the bottom plate of the drawer, the top and bottom of the cabinet can be opened and closed. By exposing the front end face of the bottom plate of the drawer between the door plates, the effective depth of the drawer can be increased or the depth of the cabinet can be reduced by that amount as compared with the conventional cabinet of this type.

According to a second aspect of the present invention, a puller is pivotally supported at an intermediate position between the left and right latches so as to be rotatable frontward about a horizontal pivot shaft, and When the vertical rising parts formed on both left and right ends are brought into contact with the rear surface of the operating rod part of the latch that can rotate about the vertical axis, when pulling out the drawer, rotate the puller in the pulling direction. With this, the engagement of the left and right latches is released, and then the turning operation of the pulling hand naturally shifts to the pulling operation, so that the drawer can be pulled out.

If the front cover attached to the front end of the bottom plate of the drawer is equipped with the latch and the puller as in the third aspect of the invention, the processing for pivotally supporting the latch and the puller on the drawer body is unnecessary. Therefore, the drawer main body is easily manufactured from steel, and the front end surface of the bottom plate is formed by a separate front cover made of, for example, synthetic resin (the resin makes it easy to form the latch and pivot of the puller). It is well dressed and has a latch mechanism built into it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a latch device of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG. 1, showing the latch device assembled to the front cover.

FIG. 3 is a sectional view taken along line III-III in FIG. 1, showing the latch device assembled to the front cover.

FIG. 4 is a perspective view of a cabinet equipped with the latch device of the present invention.

[Explanation of symbols]

 (A) Cabinet (1) Cabinet (1a) Inside surface (2) Drawer (3) Bottom plate (4) Door plate (5) Front cover (6) Recess (7) Puller (8) Pivot shaft (8a) ) Vertical rising part (9) Latch (9a) Actuating rod part (9b) Locking hole (10) Vertical shaft (11) Locking part (12) Projection (13) Recess (14) Coil spring

Claims (3)

[Claims] 1. A cabinet in which a drawer having an opening on the front surface is arranged to be movable back and forth in a housing having an opening on the front surface, the front end portion of the drawer bottom plate is provided on both left and right sides, and on the left and right inner side surfaces of the housing. In addition to pivotally supporting a spring-biased latch that can be engaged and disengaged with the provided locking portion, a puller is pivotally supported at an intermediate position between the left and right latches, and both left and right ends of the pivot shaft are described above. A latch device for drawer of a cabinet, characterized in that each latch is linked so that the engagement between each latch and the locking portion of the housing can be released by the rotation of the puller. 2. A puller at an intermediate position between the left and right latches,
An operating rod part of a latch which is pivotally supported forward about a horizontal pivot shaft and which is capable of pivoting vertical rising parts formed at both left and right ends of the horizontal pivot shaft about the vertical shaft. 2. The cabinet drawer latch device according to claim 1, wherein the latch device is brought into contact with the rear surface of the cabinet. 3. The latch device for a drawer of a cabinet according to claim 1, wherein a front cover attached to the front end of the bottom plate of the drawer is equipped with a latch and a puller.