JP2000004963A - Simple detaching mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a detaching mechanism which can especially improve detaching work of engagement and separating work of both members. SOLUTION: This simple detaching mechanism is equipped with a first member 4 with an engaging hole 16 and a second member 2 with an anchor part 19 with an engaging claw 20. When both first and second members 4, 2 are operated to slide in the direction, the both are mutually superposed to make the engaging claw 20 drop into the engaging hole 16 accompanied by elastic deformation of the anchor part 19 to fix the engaging claw 20 in a locked condition. On the contrary, when the engaging claw 20 is moved from a condition that the engaging claw 20 is pushed into to be drawn off from the engaging hole 16 to a direction opposite to the sliding direction, the both members 4, 2 are separated. The anchor part 19 of the second member 2 has an operating protrusion part 21 paired with the engaging claw 20 for detaching formed protruded larger than the height of the engaging claw 20. The first member 4 is neighboring the engaging hole 16 and has a notch 15 to make the operating protrusion part 21 not interfere.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple attachment / detachment mechanism suitable for attaching, for example, a front plate (usually referred to as a mirror plate) disposed in front of a drawer of an office desk. is there.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a general office sleeve desk. In FIG. 7, in the sleeve desk 1, a front plate 2 of a drawer is detachably attached, and a plurality of front plates 2 having different colors, patterns, etc. are prepared, and these can be replaced according to the use or the like. Has become. FIG. 8 shows an example of a mechanism for attaching and detaching the front plate 2 in the conventional sleeve desk 1. In this structure, the first member 4 is attached to the front side of the drawer 3, and the front plate 2 as the second member is detachably attached to the first member 4.

The first member 4 is formed of a metal frame and has a pair of engaging holes 6 provided on the upper and lower surfaces 4a, each of which is divided into right and left sides. On the other hand, the front plate 2 is formed in a box shape, and an opening having a size corresponding to the outer shape of the first member 4 is provided on the back surface side.
Member 4 is inserted. Upper and lower surfaces 2a
Is provided with a plurality of anchor pieces 7 corresponding to the engagement holes 6 formed in the first member 4. As shown in FIG. 9A, the anchor piece 7 has a locking claw 7a at the tip, and is provided in a cantilever shape in the hole 8 so as to be elastically deformable. Further, a prying hole 9 is provided in the anchor piece 7 so as to penetrate vertically through the locking claw 7a.

FIGS. 9A and 9B are views showing the operation when the front plate 2 is mounted on the first member 4. FIG. When the front plate 2 is attached, first, as shown in FIG. 1A, for example, the first member 4 is made to correspond to the opening of the front plate 2, and the first member 4 is slid from that state to move the first member 4 forward. It is inserted into the plate 2. During the insertion, the front end 4b of the first member 4 comes into contact with the tapered surface 7a, and the anchor piece 7 is elastically deformed outward and is released. When the first member 4 is further inserted and the locking claw 7a corresponds to the engagement hole 6, the locking claw 7a falls into the engagement hole 6 and is engaged. (B) shows a state in which the locking claw 7a and the engaging hole 6 are thus engaged. This engagement is performed at each of the anchor pieces 7, and the front plate 2 is attached to the front surface of the drawer by engagement at a plurality of locations.

FIG. 10 shows an operation when the front plate 2 is detached from the first member 4. The operation of removing the front plate 2 from the front surface of the drawer 3 and replacing it with another front plate 2, for example, will now be described. First, a jig 10 such as a flathead screwdriver is inserted into the prying hole 9, and is released from the engaging hole 6 while prying the locking claw 7 a as shown by a solid line in the drawing. At the same time, the front plate 2 is slightly moved in the pulling-out direction, and the front plate 2 is slanted by the play between the front plate 2 and the first member 4, and as shown by the two-dot chain line in the drawing, the locking claws 7a Are kept out of the engagement holes 6. This work is performed on each of the anchor pieces 7 (four places in this example), and from the state where the last anchor piece 7 has come off, the front plate 2 moves against the first member 4 in the direction opposite to the slide. Slide to remove.

[0006]

However, in the above-mentioned conventional attachment / detachment mechanism, for example, in order to discard the product, the front plate 2 which is a resin product is removed and separated and collected, or the front surface 2 is removed and replaced. In this case, the removal workability is poor because the removal is performed using the jig 10 such as a flathead screwdriver. This becomes worse as the number of engagement portions between the engagement holes 6 and the locking claws 7a increases, and this is a problem in terms of cost.

[0007] The present invention has been made in view of the above problems. An object of the present invention is to provide a simple attachment / detachment mechanism capable of improving disengagement and separation of both members. Further, other objects will be sequentially clarified in the contents described below.

[0008]

According to the present invention, as shown in FIGS. 1 to 6, an engagement hole 16 provided in a first member 4 and a second member 2 are provided. The first and second members 4 and 2 are slid in the direction in which the first and second members 4 and 2 are overlapped with each other. The piece 19 falls into the engaging hole 16 with elastic deformation and is fixed in a retaining state. Conversely, the state in which the locking claw 20 is pushed in the direction of coming out of the engaging hole 16 is opposite to the sliding direction. In the attachment / detachment mechanism in which the two members 4 and 2 are separated by being moved in the direction, the anchor piece 19 of the second member 2 is formed so as to protrude larger than the height of the locking claw 20. Having the operation projection 21 of the pair with the locking claw 20 , The first member 4 is adjacent to the engagement hole 16 is obtained by the configuration in which the operation protrusion 21 has a notch 15 so as not to interfere.

In the structure, when the two members 2 and 4 are disengaged, when the operation projection 21 is pressed with a finger or the like, the anchor piece 19 with the locking claw 20 is engaged with the engagement hole 16 of the first member 4. It is possible to release the engagement with the engagement hole 6 by being pushed in the direction of coming out of the hole. The operation protrusion 21 is provided so as to protrude more than the locking claw 20 and is dedicated to disengagement, so that the detachment operability is improved, and at the same time, the two members 2 and 4 are slid by the presence of the notch 15. When installing
When the user slides away in the opposite direction, there is no risk of impairing the slide operation.

According to the present invention, a part of the second member 2 is
The holding plate 17 is formed in a substantially L-shaped cross section that is one step inward from the surface, and is capable of holding the corresponding portion of the first member 4 between the holding member 17 and the inner surface of the second member 2. Part 1
It is more preferable that the lock 7 has the locking claw 20 and the operation protrusion 21. In this structure,
Since the locking claw 20 and the operation protrusion 21 are provided on the holding piece 17 which is recessed inward, the operation protrusion 21 does not protrude toward the surface of the second member 2 even if the operation protrusion 21 is increased in height. It becomes possible to attach to. When the two members 2 and 4 are attached by the slide operation, the engagement holes 16
In addition, since the notch 15 can be pushed from the state corresponding to the locking claw 20 and the operation protrusion 21 by using the first member 4 as a guide with the holding plate 17 as a guide, the mounting operability can be improved. Further, the two members 2 and 4 are provided with the engagement hole 16 and the locking claw 20.
In the state of being fixed by the engagement of the first member 4 and the inner surface of the second member 2, the engagement state is regulated by sandwiching the corresponding portion of the first member 4 between the holding plate portion 17 and the inner surface of the second member 2. The engagement is not inadvertently released by an impact or the like, and since the notch 15 of the holding plate portion 17 and the operation protrusion 21 are also engaged, it is possible to prevent the notch 15 from rattling in the width direction. Benefits are obtained. In this structure, for example, the locking claw 20 and the operation protrusion 2
By forming a substantially U-shaped slit 18 in the peripheral portion including 1, the anchor piece 19 is elastically displaced through the slit 18.

[0011]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The embodiments described below are preferred specific examples of the present invention, and thus are technically variously limited, but do not limit the scope of the present invention.

FIG. 1 to FIG. 6 show an embodiment of the present invention. 1 (a) is a longitudinal sectional view taken along line AA of FIG. 2, FIG. 2 (b) is a longitudinal sectional view taken along line BB of FIG. 2, and FIG. FIG. 3 is a schematic perspective view of the main part. FIG. 4A is a plan view of a main part of the second member,
FIG. 4B is a side view thereof. In this case,
The drawer 3 of FIG. 8 will be described by way of an example in which only the mechanism for attaching and detaching the first member 4 and the front plate 2 as the second member is changed. For this reason, in the drawings, the first member 4 and the front plate 2 are denoted by the same reference numerals as those in FIGS. 7 and 8, and only the portions related to the detaching mechanism of the present invention are denoted by the new reference numerals.

In the embodiment of the present invention, the first member 4 mounted on the front side of the drawer 3 has a substantially frame shape formed by pressing a metal material, and is divided into upper and lower surfaces 4a. , Engagement holes 16 provided in each pair
And a notch 15. The engagement hole 16 is formed of a substantially rectangular through hole. The notch 15 is continuously cut from the front end face of the first member 4, is formed in a long rectangular shape in front and rear, and extends to a position corresponding to the engagement hole 16. As described above, the first member 4 is different from the conventional one in that the first member 4 has the notch 15 adjacent to the engagement hole 16.

On the other hand, the front plate 2 as a second member
Is a substantially box-shaped resin molded product, and an opening having a size corresponding to the outer shape of the first member 4 is provided on the back surface or the back surface side. The front plate 2 is different from the related art in that the front plate 2 has a holding piece 17 provided by using a part of the upper and lower surfaces 2a. The holding piece 17 is provided on the upper and lower surfaces 2.
In FIG. 3A, a portion corresponding to the engagement hole 16 and the notch 17 is provided with a substantially L-shaped cross section in a state of being lowered one step inside. That is, the holding piece 17 lacks a part of the upper and lower surfaces 2a of the front plate 2 corresponding to the size of the holding piece 17, and is substantially parallel to the upper and lower faces 2a at a place where it is dropped inward by one step. It is formed so that. For this reason, the leading end is located below the edges of the upper and lower surfaces 2a, and is open on both sides.

The above-mentioned holding piece 17 is shown in FIGS.
Reinforcing ribs 17a provided on both back surfaces as shown in FIG.
The anchor piece 19 with the locking claw 20 and the operation protrusion 21 formed in the portion 17b defined by the substantially U-shaped slit 18 as shown in FIG.
have. The slit 18 has a U-shaped intermediate corresponding portion 18.
“a” is a large hole, and the U-shaped corresponding portions 18 b extend to the front of the end portion of the holding piece 17. Part 17
b (where the anchor piece 19 and the operation protrusion 21 are provided) are connected to the portion 17 b through the slit 18.
Of these, the connecting portion between the corresponding portions 18b is elastically displaced about the fulcrum. Anchor piece 19 is connected to one corresponding part 18
The engaging claw 20 is formed along the line a, and protrudes from a tip portion located on the corresponding portion 18b side. This locking claw 2
0 has a size and a shape that can be disengaged from the engagement hole 16 described above. The operation protrusion 21 is provided on the other corresponding portion 18a.
And has a relatively small width that is freely fitted into the notch 15 described above. The height L2 of the operation protrusion 21 is set to be equal to that of the locking claw 2 as shown in FIG.
The length L is set to be larger than the protruding dimension L1, and the dimension L2 is about twice as large as the dimension L1.

(Attachment Procedure of Front Plate) FIG.
2 shows the operation in the case of mounting on the member 4. Front plate 2
5A, first, as shown in FIG. 5A, with the engagement hole 16 and the notch 15 corresponding to the locking claw 20 and the operation protrusion 21, for example, the first member 4 is attached to the front plate. 2
Is inserted while pressing along the holding piece portion 17 in the opening of. During this insertion, the front end 4b of the first member 4 contacts the tapered surface of the locking claw 20. When the locking claw 20 is further pushed in, it is elastically displaced inward and is released. That is, the locking claw 20 is, together with the anchor piece 19 and the operation projection 21, the corresponding portion 18 b of the portion 17 b described above.
Inside with the part between them as the connection fulcrum (lower side in the figure)
It is elastically displaced and released. When the first member 4 is further inserted and the locking claw 20 corresponds to the engagement hole 16, the locking claw 20
Is dropped into the engagement hole 16 and is engaged, so that the state is prevented. FIGS. 1, 2, 3, and 5 (b) show a state in which the locking claw 20 and the engaging hole 16 are thus engaged. This engagement is performed simultaneously or sequentially at each of the anchor pieces 19, and the engagement at the plurality of locations completes the attachment of the front plate 2 to the front surface of the drawer. In this state, since the operation protrusion 21 protruding from the locking claw 20 is provided on the holding piece 17 which has fallen inward, the operation protrusion 21 does not protrude to the surface side of the second member 2 and impairs the appearance. Or out of the way.

FIG. 6 shows the front plate 2 as the first plate.
2 shows the operation when the member 4 is detached from the member 4. In addition,
This work is not limited to the case where the front plate 2 is removed from the front surface of the drawer 3 and is replaced with another front plate 2, and when the whole is discarded, the front plate 2 is detached from the first member 4 side and separated. It is also performed when collecting. In this separation work, the operation protrusion 21 protruding from the notch 15 is pushed inward (downward in the figure) by the operator's finger F or the like. Then, the locking claw 20 is released from the engagement hole 16 to the inside due to the elastic deformation of the operation protrusion 21 to the inside, and the engagement is released. In this case, since the height L2 of the operation projection 21 is larger than the projection L1 of the locking claw 20, the operation projection 2
When the button 1 is slightly pressed down, the locking claw 20 comes out of the engagement hole 16 completely. Then, from the state shown in FIG. 6, a slight sliding operation is performed in a direction in which the first member 4 and the front plate 2 are separated, and this operation is performed for each locking claw 20. In addition, the last locking claw 20
Is disengaged, the front plate 2 can be separated from the first member 4 by sliding the entire front plate 2 in a direction to disengage from the first member 4. After removing the front plate 2 in this way, another front plate 2 having the same structure can be attached again in the manner described above.

Therefore, according to the above-mentioned attachment / detachment mechanism, when the front plate 2 is fixed to the first member 4 by the engagement between the engagement hole 16 and the engagement claw 20, the engagement state is the holding state. Since the position is regulated by sandwiching the corresponding portion of the first member 4 between the plate portion 17 and the inner surface of the front plate 2, for example, the front plate 2
Even if a shock or the like is received, the engagement is not inadvertently released, and at the same time, the gap between the notch 15 and the operation protrusion 21 ensures that the notch 15 is loosely attached in the width direction. This can improve reliability. In the separation work, the operation projection 21 is pressed with the finger F or the like,
The locking claw 20 can be separated from the engagement hole 16 by pulling it out from the engagement hole 16 and sliding in the opposite direction from that state. Therefore, this attachment / detachment mechanism does not require a jig or the like for disengagement unlike the conventional structure, and the disengagement and separation work can be performed more smoothly, and the workability can be improved.

Although the present invention is embodied as in the above embodiment, the first embodiment is the same as the first embodiment except for the technical element of claim 1.
The member 4 and the second member 2 themselves are not restricted at all by their uses or shapes.

[0019]

As described above, in the simple attaching / detaching mechanism of the present invention, the disengagement operation can be performed by using the operation projection without the necessity of the jig for disengagement. The workability of releasing the engagement and separating the two members can be improved. Further, in this structure, the operation protrusion can be formed simultaneously with the anchor piece with the locking claw of the first member by resin or the like, and the notch can be formed together with the engagement hole of the second member by press molding or the like. And can be formed simultaneously, so that it can be easily carried out without increasing the cost of the conventional product.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view taken along lines AA and BB in FIG. 2;

FIG. 2 is a plan view showing a main part of the embodiment of the present invention in a partial cross section.

FIG. 3 is a schematic external view showing a main part of the embodiment.

FIG. 4 is a plan view and a side view showing a main part of a second member (front plate) of the embodiment.

FIG. 5 is an operation explanatory view at the time of an attaching operation in the attaching / detaching mechanism of the embodiment.

FIG. 6 is an explanatory diagram of an operation at the time of a separating operation in the attachment / detachment mechanism of the embodiment.

FIG. 7 is a perspective view showing a typical office sleeve desk.

FIG. 8 is an exploded perspective view of a main part in a conventional structure.

FIG. 9 is an operation explanatory view at the time of a mounting operation in a conventional structure.

FIG. 10 is an explanatory diagram of an operation at the time of a separating operation in a conventional structure.

[Explanation of symbols]

4 first member, 4b front end, 16 engagement hole, 15
Notch, 2 ... front plate (second member), 17 ... sandwiching piece,
18: Slit 19: Anchor piece, 20: Locking claw 21: Operation projection.

Claims (2)

[Claims] An engaging hole provided in the first member;
The first member and the second member are slid in a direction in which the first member and the second member are overlapped with each other, whereby the locking claw is The anchor piece falls down into the engaging hole with elastic deformation and is fixed in a retaining state, and conversely, from a state in which the locking claw is pushed in a direction to pull out from the engaging hole, the sliding claw is opposite to the sliding direction. In the attaching / detaching mechanism in which the two members are separated by being moved in the direction, the anchor piece portion of the second member includes a release operation projection formed so as to be larger than a height dimension of the locking claw. The first member has a notch adjacent to the engagement hole so as not to interfere with the operation protrusion. Simple detachable mechanism. 2. A part of the second member has a substantially L-shaped cross section which is stepped inward from a surface, and sandwiches a corresponding portion of the first member between the second member and an inner surface of the second member. The simple attaching / detaching mechanism according to claim 1, wherein the simple attaching / detaching mechanism is formed on a possible holding plate portion, and has the locking claw and the operation protrusion portion on the holding plate portion.