JPH0645391U - Mounting board mounting box - Google Patents

Abstract

(57) [Summary] [Purpose] An object is to provide a mounting board mounting box on which the mounting board 2 can be mounted very easily without the need for screwing screws or the like. [Structure] A rib 122 having a gap 121 is formed on the inner surface of the side wall 11 facing the mounting board mounting box.
The width dimension s of the side surface 1 is an inclined surface 121a that spreads inward with the width dimension t of the mounting substrate 2 as an intermediate value, and the side wall 11 can be enlarged and deformed on the opening side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a mounting board on which various electric parts are mounted or a mounting board such as a printed wiring board on which printed wiring is mounted.

[0002]

[Prior art]

 Conventionally, a mounting board mounting box of this type is known to be fastened with a screw, and the mounting board mounting box proposed in JP-B-58-43659 will be described with reference to FIG. A protrusion 110 is formed on one side wall 10 of the mounting board mounting box, and two pedestals 150 and 160 having substantially the same height from the bottom surface are provided on both sides of the bottom plate, and the other one is provided on the bottom plate. An elastic locking piece 120 protruding obliquely inward toward the bottom is attached to the side wall 10 at a position facing the protrusion 110 while being fixed on the opening side.

By inserting one end of the mounting board 20 into the inner part of the protrusion 110 and pushing it in, the locking piece 120 is pressed to bend and pass through, so that the mounting board comes into contact with the pedestals 150 and 160 and the same from the bottom surface. The protrusion 110 is fixed at a predetermined position of the height position and fixed by the restored locking piece 120 in a retaining state. After that, the screw 130 is passed through the mounting substrate 20 and screwed into the pedestal portion 150 to be fixed by tightening. That is, in the above-mentioned retaining state, since the tightening is not surely performed, it is necessary to tighten the screw 130 or the like by screwing, and the screw 130, the locking piece 120 or the like is required, and the number of components increases. It is also very difficult to attach the locking piece 120, and there is a point that the cost becomes high.

[0004]

[Problems to be solved by the device]

 Therefore, the present invention utilizes the elasticity of the flexible mounting box and obtains the tightening force by its restoring force, so there is no need to tighten the screws such as the above screws, reducing the number of parts and increasing the processing man-hours. The mounting work can be done by simply pushing the mounting board in place, and the mounting work can be done very easily.

[0005]

[Means for Solving the Problems]

 In the mounting board mounting box 1 of the present invention, two rows of ribs 122 are formed on the inner surfaces of both side walls 11 of the mounting box 1 so as to project. The mounting position of the mounting board 2 on the side surface of the gap 121 between the ribs 122. The width dimension s of the mounting board 2 is substantially equal to or slightly smaller than the width dimension t of the mounting substrate 2, and the opening portion of the side wall 11 is flexible so that it can be expanded and deformed. It is characterized in that the mounting substrate 2 can be pushed into the gap 121.

[0006]

[Action]

 When the mounting board 2 is pushed into the mounting board mounting box 1, the both side walls 11 are spread out to form a curved inclination, so that the mounting board 2 is fitted into the gap 121 and the ribs 122 are restored by the restoration of the both side walls 11. The mounting board is pinched and fixed in the vertical and horizontal directions without any rattling or with a slight tightening margin, and the mounting board 2 is securely clamped without rattling.

[0007]

【Example】

 1 to 3, reference numeral 1 denotes a flexible mounting board mounting box integrally made of resin or the like on which a mounting board 2 on which various electric components are mounted is mounted. Two rows of ribs 122 are integrally formed upright on the opposing side walls 11, and an inclined surface 122b for smoothly introducing the mounting substrate 2 is provided on the front side of the gap 121 formed between the ribs 122. In addition, the dimension of the mounting substrate 2 in the longitudinal direction is smaller than the dimension between the bottom surfaces of the gap 121. The width dimension of the gap 121 is slightly larger than the width dimension t of the mounting board 2 at the front end, and is not larger than the slant surface 121a having the small width dimension s1 at the back end. The width dimension s of the gap 121 at (a position slightly deeper than about half the depth of the gap 121) is substantially equal to or slightly smaller than the width dimension t of the mounting substrate 2. In the drawings, 2a indicates a printing plate. 2 shows a state in which the mounting substrate 2 of this embodiment is being pushed in, and FIG. 3 shows a mounting and fixing state of the mounting substrate 2.

With the above configuration, when the mounting substrate 2 is pushed into the mounting box 1 and passed through the inclined surface 122b of the front side rib 122 formed inside the side wall 11, the side wall 11 is gradually expanded. Since the side wall 11 is curved and inclined so that it expands on the opening side, that is, the inward dimension and the width dimension of the gap 121 on the inner side of the rib 122 are increased, the mounting substrate 2 is placed in the gap 121. Can be inserted. After the mounting substrate 2 is fitted, the curved deformation of the side wall 11 is restored, and the mounting substrate 2 is fixed by the ribs 122 with almost no gap or with a slight interference. In addition, since the displacement in the left-right direction is also regulated with certainty, the mounting substrate 2 can be reliably sandwiched and fixed. Since the mounting can be performed by only one pressing operation, the mounting work is extremely easy.

In the present embodiment, the inclined surface 121a may be formed into a taper shape having an extremely slight slope for removing the mold, the same action and effect as described above can be obtained, and the object of the present invention can be achieved. .

[0010]

[Effect of device]

 As described above, according to the mounting board mounting box according to the embodiment, when the mounting board 2 is pushed into the mounting box 1 at a substantially right angle and fitted into the rib gap, the mounting board mounting table is mounted at a predetermined mounting position. The back side is pinched or fixed in a pressed state, and the operation can be performed with almost one pressing operation, and its mounting is extremely easy. Also, the mounting box is a resin integrally molded product etc. It is possible to provide a mounting board mounting box which is useful because the manufacturing cost can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a state before mounting a mounting board according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which the mounting board is being assembled in the embodiment shown in FIG.

FIG. 3 is a vertical sectional view showing a mounting state of the mounting board.

4 is a partially enlarged vertical sectional view of FIG.

FIG. 5 is a schematic vertical cross-sectional view for explaining an assembled state of a mounting board in a conventional example.

[Explanation of symbols]

 1 Mounting Board Mounting Box 11 Side Plate 121 Gap 121b Sloping Surface 121a Sloping Surface 122 Rib 2 Mounting Board

Claims (1)

[Scope of utility model registration request] 1. A mounting board mounting box 1 for mounting a mounting board 2.
In addition, two rows of ribs 122 are formed so as to project on the inner surfaces of both side walls 11 of the mounting box 1.
The width dimension s at the mounting position of the mounting substrate 2 on the side surface 1 is substantially equal to or slightly smaller than the width dimension t of the mounting substrate 2 and is formed by an inwardly sloping surface 121a, and the opening portion of the side wall 11 is formed. It is flexible so that it can be expanded and deformed, and the gap 1
A mounting board mounting box in which the mounting board 2 can be pushed into 21.