JPH068324Y2 - Panel fastening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a panel fastening device, and more particularly, to a panel fastening device that can be fastened to an opening or the like of a housing with one touch.

[Prior Art] Conventionally, for example, when a frame-type or lid-type panel or the like is fitted and fitted to an opening or the like of a housing, it is troublesome to fix it with screws or the like. Further, it is difficult to perform screw tightening on the rear surface side of the panel so that the screw head is not exposed to the front surface, especially when electronic components are mounted on the panel. For this reason, in the case where a resin-based material is used, a device of a type in which a hook-shaped locking claw is engaged with and engaged with the other locking portion by utilizing its elasticity has been widely used.

[Problems to be Solved by the Invention] However, in the conventional panel fastening device as described above, the fastening performed by the combination of the locking claws and the locking portions is configured so as to restrain the movement in only one direction. Therefore, there is a drawback that it is easy to come off when it receives an impact or a vibration from different directions. Further, it is necessary to remove the panel from the housing for repair and inspection, and it is desirable that the panel be easily removed.

The object of the present invention is to eliminate the above-mentioned conventional drawbacks,
An object of the present invention is to provide a panel fastening device that is easy to mount and is difficult to remove, and can be easily detached by using a simple tool.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a panel fastening device that is fitted and fastened to a frame of a housing.
At least one pair of relative positions in the peripheral portion of the panel and the frame are provided with a first engaging member and a second engaging member which are parallel to each other and are elastic bodies capable of slidingly engaging with each other when fitted, A locking projection is provided on the sliding contact surface of the first engaging member, and a notch and a locking end are formed at the tip end thereof,
An engaging hole portion that can be engaged with the locking projection and that is in communication with the cutout portion and the locking end are in contact with the tip end portion of the second engaging member, and the locking end is A restraint portion capable of restraining an operation in a direction perpendicular to the sliding contact surface is provided, and when the panel is fitted to the frame, the locking projection engages with the engagement hole portion, and the locking end is By being brought into contact with the restraint portion and restrained, restraint between the first engaging member and the second engaging member in two directions along the sliding contact surface and in a direction perpendicular to the sliding contact surface, respectively. It is characterized in that it is obtained.

[Operation] According to the present invention, when the panel is fitted to the frame of the housing, the first engaging member slides along the second engaging member and the locking protrusion of the first engaging member moves to the first position. By engaging with the engaging hole portion of the engaging member, mutual movements in two directions along the sliding contact surface are restrained, and at the same time, the tip portion of the first engaging member is the tip of the second engaging member. By abutting against and restraining a restraining portion provided on the portion, mutual movements in a direction perpendicular to the sliding contact surface as well as the sliding contact direction are restricted, and accordingly, the first engaging member and the second engaging member Since the motions in the three directions are kept in a restricted state between and, by providing at least a pair of such first and second engaging members at the peripheral relative positions of the panel and the frame of the housing, one-touch operation can be performed. In addition, it is possible to maintain a reliable engagement state in which there is no risk of it coming off.

In addition, at the time of dismounting, the elasticity of the first engaging member and the second engaging member is used to insert a tool into a hole that is common to both directions, and only to pry the tool to simultaneously release the double locked state. be able to.

Embodiments Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 shows an example of the configuration of the present invention. Here, 1 is a frame which is formed in a frame shape as a part of a casing of an electronic device or the like, 2 is a panel which is fitted into the frame 1 so as to be inserted in the arrow direction, and 3 is a panel 2. For example, as shown in FIG. 2A, first engaging members 4 integrally formed at both ends are second engaging members 4 provided at positions corresponding to the first engaging members 3 of the frame 1. . In this embodiment, the frame 1 and the second engaging member 4, and the panel 2 and the second engaging member 4 are made of a polymer resin such as polyacetal, polycarbonate, nylon, etc., which are excellent in flexibility and heat resistance. It is integrally molded with the material.

Further, both the first engaging member 3 and the second engaging member 4 have flat plate portions 3A and 4A along the fitting direction shown by the arrow, and the first engaging member 3 further has the flat plate portions 3A and 4A. 3A each have a wedge-shaped locking protrusion 3B protruding toward the second engaging member 4 side, and a notch 3C and a locking end at the tip thereof.
It has 3D. Reference numeral 4B denotes a hook-shaped hand-shaped arm portion extending from both sides of the tip end of the flat plate portion 4A of the second engaging member 4, and 4C integrally connects the bent tip end portions of these arm portions 4B. It is a restraint plate. And, this restraint plate 4C and both of the above-mentioned arm portions
By integrally forming 4B and the flat plate portion 4A, a restraining portion 4D having a substantially U-shaped cross section is formed at the tip end portion of the second engaging member 4, and the arm portion 4B and the flat plate portion 4A are formed. Thus, the engaging hole portion 4E is formed therebetween.

Next, the panel engaging operation by the panel engaging device thus configured will be described with reference to FIGS. 2A to 2C.

Now, referring to FIG. 2A, when the panel 2 is fitted in the direction of the arrow toward the frame 1 of the housing, the flat plate portion locking projection 3B of the first engaging member 3 is changed to the flat plate portion of the second engaging member 4. By sliding along 4A, the elasticity of members 3 and 4 causes them to be somewhat flexible as shown in FIG. 2B. Further, when the engaging end portion 3D of the first engaging member 3 comes into contact with the restraining plate 4C of the second engaging member 4, the engaging portion 3D is pushed away to deform the arm portion 4B so that the engaging portion is locked. At the same time that the claw of the protrusion 3B is disengaged from the end of the flat plate portion 4A of the second engaging member 4 and falls into the notch 3C, the elastic restoring force causes the first engaging member to be locked as shown in FIG. 2C. The end portion 3D is restrained by the restraining portion 4D of the second engaging member 4.

FIG. 3 shows the state of the panel 2 attached to the frame 1 in this way. As is clear from this figure, the engaging projection 3B of the first engaging member 3 is engaged with the engaging hole portion 4E of the second engaging member 4 in such a manner that Thus, the sliding contact surface, that is, the movement in two directions along the paper surface is restricted. In addition, since the engaging portion 3D of the first engaging member 3 is held by the restraining portion 4D of the second engaging member 4, the operation in the fitting direction and the direction perpendicular to the paper surface is restrained.
With only one set of such engagement devices, mutual movements in two directions along the sliding contact surface and in three directions perpendicular to the sliding contact surface are restrained, and separation from each other can be prevented.

Next, the operation of detaching the panel engaging device will be described with reference to FIG.

It should be noted that it is preferable to use a simple rod-shaped tool for the removal, and 10 indicates the tool. Now the 4th
The tool 10 is inserted into the engagement hole portion 4 of the second engagement member 4 from one side with respect to the set of engagement devices attached in the state of FIG.
E and the first engaging member 3 through the cutout portion 3C to the other side so that the tool 10 is twisted in the arrow direction between the end edge of the cutout portion 3C and the end edge of the restraint plate 4C. To operate. Then, according to the twisting angle of the tool 10 by such an operation, as shown in FIGS. 4B and 4B, the elasticity of the members 3 and 4 is used to deform both of them, and the constraint portion 4D moves to the first position. The engaging end 3D of the engaging member 3 is released, and the first engaging member 3
The engaging projection 3B can be disengaged from the engaging hole portion 4E of the second engaging member 4.

The first engaging member 3 and the second engaging member 4 are 1
2A, at least in the vicinity of a pair of parallel ends of two panels 2 and at corresponding positions on the frame 1, respectively.
As shown in FIG. 2C, one pair should be provided, and it is desirable to dispose the engaging devices for the four ends of the panel 2 and the frame 1 preferably. Thus, the panel 2 can be pulled out from the frame 1 by performing the same operation on a plurality of sets of fastening devices.

[Advantages of the Invention] As described above, according to the present embodiment, in the attachment device of the panel fitted and attached to the frame of the housing, at least one of the panel and the peripheral portion of the frame is provided. A first engaging member and a second engaging member of elastic bodies which are parallel to each other and can be slidably contacted and locked at the time of fitting are arranged at the relative positions of the set, and are provided on the sliding contact surface of the first engaging member. A locking projection is provided and a notch and a locking end are formed at its tip, and the locking projection is engageable with the tip of the second engaging member and communicates with the notch. A possible engaging hole portion and the locking end are in contact with each other, and a restraining portion capable of restraining an operation in a direction perpendicular to the sliding contact surface of the locking end is provided, and when the panel is fitted to the frame, The locking projection engages with the engaging hole portion, and the locking end abuts against the restraining portion and is restrained. By doing so, it is possible to obtain the restraint between the first engaging member and the second engaging member in two directions along the sliding contact surface and in a direction perpendicular to the sliding contact surface. By a simple operation of fitting the panel into the, it is possible to obtain a locked state in which the movements in the three directions are restrained between the first engaging member and the second engaging member, and the external force such as vibration or shock is obtained. There is no risk of disengagement even when the frame or panel is made of a resin-based material, and the first and second engaging members can be integrally molded, so that the structure can be manufactured at low cost. Further, the engagement state between the first engagement member and the second engagement member can be easily released only by inserting and twisting the rod-shaped tool through the notch communicating with the engagement hole portion. Therefore, it is possible to provide a convenient fastening device for a panel that needs to be removed for inspection or the like.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of the structure of the present invention, and FIGS. 2A, 2B and 2C are the front, the front and the front of the first and second engaging members according to the present invention. FIG. 3 is a cross-sectional view showing the rear state, FIG. 3 is a top view of the locked state according to the present invention, and FIG. 4 is an explanatory view of the detaching operation of the present invention. 1 ... frame, 2 ... panel, 3 ... first engaging member, 3A ... flat plate portion, 3B ... locking projection, 3C ... notch portion, 3D ... locking end, 4 ... first 2 engaging members, 4A ... flat plate part, 4B ... arm part, 4C ... restraining plate, 4D ... restraining part, 4E ... engaging hole part.

Claims (1)

[Scope of utility model registration request] 1. A locking device for a panel, which is fitted and fixed to a frame of a housing, wherein at least one set of relative positions in the peripheral portion of the panel and the frame are parallel to each other and slide at the time of fitting. A first engaging member and a second engaging member, which are elastic bodies capable of contacting and engaging with each other, are provided, a locking projection is provided on a sliding contact surface of the first engaging member, and a notch and An engaging hole is formed, and an engaging hole portion and the engaging end, which are engageable with the engaging protrusion and are capable of communicating with the notch, are in contact with the tip end portion of the second engaging member. , A restraining portion capable of restraining the operation of the locking end in a direction perpendicular to the sliding contact surface is provided, and the locking projection engages with the engaging hole when the panel is fitted to the frame. , The first engaging member and the second engaging member when the locking end is brought into contact with and restrained by the restraining portion. A fastening device for a panel, characterized in that it can be restrained between a member and a member in two directions along the sliding contact surface and in a direction perpendicular to the sliding contact surface.