JPH0941761A - Latch device in drawer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a latch, which is identical in shape, on the rear surface of a drawer's end plate whose elevation is different, by determining the laid out elevation of the latch so that a downward set up working piece may be placed into contact with one of upper and lower contact bodies at the tip of a rotary shaft. SOLUTION: In the case when the height dimension H1 of a latch 20 from an axial line of a rotary shaft 8 of a drawer 7 up to a latch claw 24 is short, a layout elevation H2 of the latch 20 from the rotary shaft 8 is set. In this case, a vertical area 15a of an L-shaped release layout part is set so that it may not be interfered with the tip of an upper contact body 22. In the case when the height H3 from the axial line of the rotary shaft 8 of the drawer 7 up to the latch claw 24 of the latch body 20 is set slightly longer, the layout height between the rotary shaft 8 and the latch body 20 is set. At least two contact bodies are preliminarily provided on the latch body 20 in such a fashion that they may be projected vertically with a proper spacing, thereby laying out a working piece 12 on the rotary shaft 8 by way of a curved laid out area with a stag e. This construction makes it possible to mount a latch device on a drawer whose height is different by simply changing the laid out elevation of the latch body 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a drawer latch device in a cabinet or the like.

[0002]

2. Description of the Related Art Recently, as disclosed in Japanese Utility Model Publication No. 4-9857, a drawer end plate in a cabinet is integrally formed of a synthetic resin material by a front plate and a peripheral frame plate facing rearward around the front plate. According to the prior art, a pull tab member or a latch body formed by integrally forming a flat plate-shaped operation piece in the middle of a horizontal longitudinal rotation shaft is formed.
It is disclosed that the mirror plate is mounted on the back surface side with a simple structure.

That is, a rotary shaft is rotatably supported by a shaft support portion projecting from the back surface of the front plate of the end plate, and an operating piece of the pull member is provided in a substantially central portion of the front plate of the end plate. Face the hole. Then, a linear operating piece projecting downward is fixed to the rotating shaft so that the tip of the operating piece approaches the back surface of the front plate of the end plate when the operating piece is rotated forward from the pull hole. Configure.

On the other hand, a vertical rotation support portion of a latch body having a vertical rotation axis is rotatably supported on a box-shaped receiving body, and this receiving body is provided on the back surface of the front plate of the end plate. An inverted L-shaped interlocking rod, which is attached to the locking frame and has a vertical axis portion that coincides with the vertical rotation axis of the latch body, and an abutting portion that is at a right angle to the vertical axis portion, rotates integrally with the latch body. And the contact portion is brought into contact with the operating piece.

[0005]

By the way, various upper and lower dimensions of the end plate are prepared according to the depth of the drawer storage box. In that case, the height position of the pull hole formed in the end plate is approximately the same size from the upper edge of the end plate, while the height position of the latch body is lower than the pull hole when the vertical size of the end plate becomes large. Generally, the separation distance is large.

Therefore, in the above-mentioned prior art, when the vertical dimension of the end plate becomes large, many types of the inverted L-shaped interlocking rod having a long vertical axis must be prepared in accordance with the vertical dimension of the drawer. There wasn't. In addition, the latch body must be mounted on the end plate through the receiving body, resulting in a large number of parts and high cost.

The present invention has been made to solve these problems, and it is an object of the present invention to provide a latch device having a simple structure which can be mounted on the end plates of drawers having different heights.

[0008]

In order to achieve the above object, the invention according to claim 1 is such that a horizontally long rotating shaft is rotated around a shaft supporting portion projecting from a rear surface of a front plate of a drawer end plate. A flat plate-like operation piece that is rotatably supported and provided in the middle of the rotating shaft is made to face the pull hole formed in the front plate of the end plate.
An operation piece provided on the rotation shaft pushes and rotates a horizontal abutment body of a latch body mounted on the back surface of the front plate so as to be rotatable around the vertical axis to engage the latch body. In a drawer latch device configured to rotate in a releasing direction, a plurality of abutment bodies are provided on the latch body at appropriate vertical intervals so as to project in a substantially parallel manner, while facing downward with respect to the rotation shaft. The actuating piece provided in the above is bent and formed in a stepped shape so as to selectively press and abut against any one of the abutting bodies.

The invention described in claim 2 is the same as claim 1.
In the latch device for the drawer according to the above item 1, the latch body is provided with a lower contact body projecting in an L shape at a lower end thereof, and at least one contact body is projectingly provided on a side surface of a body portion of the latch body. ,
A fitting hole for detachably fitting a spare contact body is provided in the upper part of the body, and a spring body for urging the front side of the front plate of the end plate to urge it is integrally formed on the side surface of the body. It was formed in a proper manner.

[0010]

According to the structure described in claim 1, the stepped piece is provided so that the actuating piece provided downward with respect to the rotating shaft is selectively pressed against one of the upper and lower contact bodies. Since it is formed into a curved shape, only the installation height of the latch body with respect to the rotating shaft is changed so as to contact only one of the plurality of contact bodies provided in the latch body. so,
The latch body can be released by rotating the operation piece forward of the end plate. Then, since it is only necessary to apply the same parts to end plates having different heights and change the installation height position of the latch body, it is possible to reduce the number of necessary parts and it is extremely easy to reduce the cost. Become.

According to the second aspect of the present invention, the lower abutment body of the abutment bodies protruding vertically from the latch body at appropriate intervals is provided in an L shape from the lower end of the body portion. By providing at least one abutting body on the side surface of the body, it becomes easy to arrange a plurality of abutting bodies vertically above and below the latch body. In addition, if a fitting hole for fitting a spare contact body in the upper part of the body is pre-drilled, it is extremely easy to add more contact bodies, and moreover, the spring body is integrated with the body. If it is provided, the spring work as the urging means does not need to be attached later, and the mounting work becomes extremely easy.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described. FIG. 1 is a perspective view of the side of the drawer end plate, the pull member, and the latch body, and FIG. 2 is a bottom view of the end plate of the drawer. The drawer end plate 1 shown in FIG. 1 and FIG.
This is applied to a flat drawer having a low height, and the end plate 1 has a substantially flat plate-like front plate 1a and a peripheral frame plate 1b projecting rearward from the periphery thereof integrally formed by injection molding with a synthetic resin material. In the front plate 1a, a pull frame 2 having a horizontally long pull hole 2a is formed so that an upper half portion thereof bulges forward and a lower half portion thereof bulges backward. On the back surface of the front plate 1a, a plurality of reinforcing ribs 3 are integrally formed or fixed by an adhesive so as to be close to the inner surface of the peripheral frame plate 1b at appropriate intervals.

As shown by the chain double-dashed lines in FIGS. 1 and 3, a back plate 5 made of a thin metal plate to which the front end of the drawer box body 4 is fixed.
Covers the back side of the end plate 1 and fits the upper peripheral edge of the back plate 5 to the upper bent edge 1c of the peripheral frame plate 1b, and engages with the engaging piece 6 projecting to the lower position of the peripheral frame plate 1b. Aperture 6
Claws (not shown) provided on the lower peripheral edge of the back plate 5 with respect to a
Is to be locked.

The pull tab body 7 is composed of a horizontally long rotary shaft 8 arranged substantially horizontally along the rear surface of the front plate 1a of the end plate 1 and an operation piece 9 having an upper end attached to the rotary shaft 8. As shown in FIGS. 1 to 4, brackets 10 and 1 integrally formed of a resin material are provided on the rear surface of the front plate 1a.
1, the base end of the rotating shaft 8 is rotatably inserted into the hole-like shaft supporting portion 10a of one bracket 10, and the middle of the rotating shaft 8 with respect to the lateral Ω-shaped shaft supporting portion 11a of the other bracket 11. The portion is pivotally supported so that the operation piece 9 faces the pull hole 2a.

A stepped actuating piece 12 for abutting either one of two abutting bodies 22 and 23 of a latch body 20 which will be described later is provided at the tip of the rotary shaft 8 of the pull tab body 7.
Downwardly and integrally project. That is, L consisting of a vertical portion 15a and a horizontal portion 15b provided at the tip of the rotary shaft 8
A downward operating piece 12 is provided at the tip of the character-shaped relief connecting portion.

As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 5, the latch body 20 is an engaging claw which is fitted to the engaging hole 14 of the cabinet body side plate 13 on the side surface of the round shaft-shaped body portion 21. The latch claw 24 provided with 24a is projected. An upper contact body 22 extending in a horizontal direction substantially orthogonal to the latch claw body 24 in a plan view of the latch body 20 is provided so as to project from a side surface of the body portion 21, and the tip end thereof is elastically pressed so as to press against the back surface of the front plate 1a. A curved flat plate-shaped spring body 25 is integrally projected.

At the lower end of the body portion 21, an L-shaped lower contact member 23 extending in parallel with the upper contact member 22 and having substantially the same length is integrally provided. As shown in FIG. 5, the body 21 has the latch claws 24 of the latch body 20 urged by the spring body 25 held substantially parallel to the side plate 13 of the cabinet main body and further rotated. A restriction stopper 26 is integrally provided so as to abut on the rear surface of the front plate 1a so as not to move.

A rectangular hole-like fitting hole 28 is formed at the upper end of the body portion 21 so that the base portion of a preliminary contact body 30 described later can be fitted so as to rotate integrally. Is. As shown in FIGS. 1, 2, and 4 to 7, a body portion 21 of the latch body 20 is formed by a pair of upper and lower shaft support pieces 16 and 17 that integrally project from the rear surface of the front plate 1a of the end plate 1.
The upper and lower parts are sandwiched and rotatably mounted, and projections 27, 27 projecting from the side surface of the body part 21 are designed to prevent falling. The lower shaft support piece 17 is provided with a hole 17a through which the vertical shaft portion 23a of the lower contact body 23 is inserted downward.

With the above structure, the upper and lower shaft support pieces 1
After mounting the latch body 20 between 6 and 17, the pull hole 2a
The rotary shaft 8 so that the operation piece 9 faces the brackets 10, 1
2, the vertical portion 15a of the relief connecting portion is disengaged from the tip of the upper contact body 22, as shown in FIG.
Since the horizontal portion 15b is arranged in a substantially parallel shape between the upper and lower abutting bodies 22 and 23, on the rear surface side of the front plate 1a of the end plate 1, the rear surface of the operating piece 12 abuts on the lower surface of the latch body 20. It comes into contact with the body 23 at right angles.

Therefore, when the operator's finger pulls the operation piece 9 in the front direction of the end plate, the rotating shaft 8 rotates about its axis, and the operating piece 12 has its tip through the escape connecting portion. Rotate in the direction of arrow A in FIG. 5 so that the side approaches the rear surface of the front plate 1a. As a result, the latch body 20 rotates against the urging force of the spring body 25, the upper and lower abutment bodies 22, 23 approach the back surface of the front plate 1a integrally, and the latch claw body 24 shows the arrow in FIG. By rotating in the B direction, it can be released from the engaging hole 14 of the cabinet body side plate 13 and released from the latch.

FIG. 8 (a) is a schematic view showing the positional relationship between the pull tab body 7 and the latch body 20 when the vertical dimension of the end plate of the drawer as shown in FIG. 2 is small. When the height H1 from the axis of the rotating shaft 8 to the latch claw 24 of the latch body 20 is short, the operating piece 12 contacts the lower contact piece 23 of the latch body 20 as described above. An installation height distance H2 from the rotary shaft 8 to the latch body 20 is set. In this case, as described above, L
The vertical portion 15a of the letter-shaped relief connection portion may be set so as not to interfere with the tip of the upper contact body 22.

As shown in FIG. 8B, when the height dimension H3 from the axis of the rotary shaft 8 of the pull tab body 7 to the latch claw body 24 of the latch body 20 is made slightly longer, the The height distance H4 from the rotation shaft 8 to the latch body 20 is set so that the operating piece 12 contacts the upper contact piece 22.
Should be set. In this case, the height distances H1 and H4 are almost the same.

As described above, the latch body 20 is preliminarily provided with two or more abutment bodies at appropriate vertical intervals, and the rotary shaft 8 of the pull tab body 7 is bent in a stepped manner. By providing the operating piece 12 through the continuous portion, it is possible to change the height of the latch body 20 with respect to the pull handle body 7 without changing the height of the drawer. The effect is that the latch device can be mounted extremely easily.

9 and 10 show an embodiment in which a pre-contact member 29 having a long leg (vertical portion) is attached to the upper end of the latch 20 and applied to the end plate 1 having a large height. The shape and dimensions of the pull tab body 7 in this case are the same as those in the above-mentioned respective embodiments,
In the square hole-shaped fitting hole 28 at the upper end of the body portion 21 of the latch body 20,
The foot of the L-shaped preliminary contact body 29 is fitted in a non-rotatable manner, and the foot extends above a groove (not shown) formed in the upper shaft support piece 16, the reinforcing rib 30, etc. 29 Horizontal abutting part 29
It may be arranged so that a contacts the operating piece 12 of the pull tab body 7. With this configuration, the height distance H5 between the rotary shaft 8 and the latch claw 24 can be greatly increased, but the horizontal contact portion 2 is not supported from the rotary shaft 8.
The height H6 up to 9a can be set to be substantially the same as the above H1 and H4.

Since the structure of the end plate 1 and the latch body 20 is the same as that of the above-mentioned embodiment, the same parts are designated by the same reference numerals and detailed description thereof will be omitted.

[Brief description of drawings]

FIG. 1 is a perspective view of each component shown on the back side of a drawer end plate.

FIG. 2 is a rear view of the drawer end plate.

FIG. 3 is an enlarged sectional view taken on line III-III of FIG. 2;

FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG.

5 is a cross-sectional view taken along the line VV of FIG.

6 is an enlarged cross-sectional view taken along the line VI-VI of FIG.

FIG. 7 is an enlarged sectional view taken along the line VII-VII of FIG.

FIG. 8A is an explanatory diagram showing an installation positional relationship when applied to a low-height end plate, and FIG. 8B is an explanatory diagram showing an installation positional relationship when applied to an endlessly high end plate. .

FIG. 9 is a rear view of the end plate showing another embodiment.

FIG. 10 is an explanatory view showing the installation positional relationship when applied to a high end plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 End plate 1a Front plate 2 Puller frame 2a Puller hole 7 Puller body 8 Rotating shaft 9 Operation piece 10, 11 Bracket 10a, 11a Shaft support 12 Actuating piece 15a Vertical part 15b Horizontal part 20 Latch body 21 Body part 22 Upper contact body 23 Lower contact body 24 Latch claw body 25 Spring body

Claims (2)

[Claims] 1. A flattened plate-shaped operation provided on a midway part of a rotary shaft by rotatably supporting a horizontally long rotary shaft on a shaft supporting portion projecting from a rear surface of a front plate of a drawer end plate. The piece is made to face a pulling hole formed in the front plate of the end plate, and the operation piece provided on the rotating shaft horizontally mounts the latch body on the back surface of the front plate so as to be rotatable around the longitudinal axis. In a drawer latch device configured to push and rotate the contact body in the direction to rotate the latch body in the disengagement direction, a plurality of contact bodies are vertically separated from the latch body by an appropriate size. And projecting substantially parallel to each other, the operation piece provided downward with respect to the rotating shaft is bent in a stepped shape so as to selectively press and contact one of the contact bodies. A latch device in a drawer characterized by being formed. 2. The latch body is provided at its lower end with a lower contact body projecting in an L-shape, and at least one abutment body is projectingly provided on a side surface of the body of the latch body. A fitting hole for detachably fitting a spare contact body is formed in the upper part, and a spring body for integrally biasing the front side of the front plate of the end plate is formed on the side surface of the body part. The latch device for the drawer according to claim 1, wherein: