JP6958947B1 - Resin parts mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a resin component mounting structure which is durable and does not easily come off. SOLUTION: A hook 11 and a dowel 12 are arranged so as to sandwich a lock beam 10 in a state where a push unit main body 6 is attached to a component mounting surface 4a of a top plate main body 4. The hook 11 includes a hook body 15 projecting from the component mounting surface 4a and a fitting claw 16 projecting from the hook body 15. The push unit main body 6 is moved toward the top plate main body 4 in order to attach the push unit main body 6 to the component mounting surface 4a of the top plate main body 4. Then, the lock beam 10 gets over the fitting claw 16 with elastic deformation of the lock beam 10 and is captured between the fitting claw 16 and the component mounting surface 4a. As a result, the lock beam 10 is restricted from moving in the direction away from the component mounting surface 4a. Further, the lock beam 10 is captured between the hook main body 15 and the dowel 12, so that elastic deformation of the push unit main body 6 in a direction orthogonal to the plate thickness direction is restricted. [Selection diagram] Fig. 2

Description

The present invention relates to a resin component mounting structure.

Patent Document 1 discloses a snap fit including a plastic engaging claw projecting onto a base member and a mating member having a hole for engaging and disengaging the engaging claw. When the mating member is engaged with the engaging claw, the engaging claw is temporarily elastically deformed in the dorsal direction.

Japanese Unexamined Patent Publication No. 2003-97520

In the configuration of Patent Document 1, since the engaging claw needs to be temporarily elastically deformed when the mating member is engaged with the engaging claw, it is necessary to intentionally reduce the strength of the engaging claw. The claws were fragile and the engaged state was easily disengaged.

An object of the present invention is to provide a resin component mounting structure that is durable and does not easily come off.

According to the viewpoint of the present invention, the plate-shaped first resin component is moved toward the second resin component along the plate thickness direction of the first resin component to move the first resin component. A resin component mounting structure for mounting on the component mounting surface of the second resin component is provided. The resin component mounting structure includes a lock beam provided on the first resin component and elastically deformable in a direction orthogonal to the plate thickness direction of the first resin component, a hook protruding from the component mounting surface, and a hook. Including the convex part. The hook and the convex portion are arranged so as to sandwich the lock beam in a state where the first resin component is attached to the component mounting surface of the second resin component. The hook includes a hook body protruding from the component mounting surface and a fitting claw protruding from the hook body. The first resin component is moved toward the second resin component in order to attach the first resin component to the component mounting surface of the second resin component. Then, the lock beam gets over the fitting claw with elastic deformation of the lock beam and is captured between the fitting claw and the component mounting surface in a direction away from the component mounting surface. Movement is restricted. Further, the lock beam is trapped between the hook body and the convex portion, so that elastic deformation in the direction orthogonal to the plate thickness direction of the first resin component is restricted.

According to the present invention, a resin component mounting structure is realized, which is durable because the hook itself does not need to be elastically deformed, and is hard to come off because the lock beam is trapped in all directions.

It is a perspective view which looked at the top plate assembly of a push-tone telephone body from the back side. It is a perspective view before mounting of the resin component mounting structure. It is sectional drawing which shows the behavior of the lock beam at the time of mounting.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view of the top plate assembly 1 of the push-tone telephone body as viewed from the back surface side. The top plate assembly 1 includes a top plate 2 and a push unit 3. The top plate 2 and the push unit 3 are both resin parts.

The top plate 2 includes a plate-shaped top plate main body 4 and a peripheral wall 5 provided on the peripheral edge of the top plate main body 4. The top plate main body 4 is a specific example of the second resin component. The top plate main body 4 has a component mounting surface 4a facing the push unit 3. The push unit 3 is attached to the component mounting surface 4a of the top plate main body 4 via a plurality of resin component mounting structures E. In the present embodiment, the push unit 3 is attached to the component mounting surface 4a of the top plate main body 4 via the four resin component mounting structures E. Instead of this, the push unit 3 may be mounted on the component mounting surface 4a of the top plate main body 4 via four or less resin component mounting structures E such as one, and five or more resin component mounting structures. It may be attached to the component mounting surface 4a of the top plate main body 4 via E.

The push unit 3 includes a plate-shaped push unit main body 6 and a plurality of push buttons 7 formed in the center of the push unit main body 6. The push unit 3 is attached to the component mounting surface 4a of the top plate main body 4 so that the plate thickness direction of the push unit main body 6 is equal to the plate thickness direction of the top plate main body 4 of the top plate 2. The push unit main body 6 is a specific example of a plate-shaped first resin component. The plurality of push buttons 7 are supported by the push unit main body 6 so as to be elastically displaceable in the plate thickness direction of the push unit main body 6.

In each resin component mounting structure E, the push unit main body 6 of the push unit 3 is moved toward the top plate main body 4 of the top plate 2 along the plate thickness direction of the push unit main body 6, and the push unit main body 6 is moved to the top plate. This is for mounting on the component mounting surface 4a of the main body 4.

FIG. 2 shows a perspective view of each resin component mounting structure E before mounting. FIG. 3 shows a cross-sectional view of the resin component mounting structure E during mounting operation.

As shown in FIG. 2, the resin component mounting structure E includes a lock beam 10 formed on the push unit main body 6 of the push unit 3 and a hook 11 protruding from the component mounting surface 4a of the top plate main body 4 of the top plate 2. , A dowel 12 protruding from the component mounting surface 4a, and the like. The dowel 12 is a specific example of the protrusion.

As shown in FIG. 1, the push unit main body 6 has a plurality of end faces 6a forming a peripheral edge. Each end surface 6a is a flat surface and extends in a direction orthogonal to the plate thickness direction of the push unit main body 6. FIG. 2 shows one end face 6a out of the plurality of end faces 6a. Here, the extending direction of the end face 6a shown in FIG. 2 is defined as the first direction. The plate thickness direction of the push unit main body 6 is defined as the vertical direction. The direction orthogonal to the first direction and the vertical direction is defined as the second direction. Therefore, the second direction is a direction orthogonal to the end face 6a shown in FIG. Further, in order to attach the push unit main body 6 to the top plate main body 4, the direction in which the push unit main body 6 approaches the top plate main body 4 is defined as downward, and the opposite direction is defined as upward.

A slit 13 is formed in the vicinity of the end surface 6a of the push unit main body 6. The slit 13 is a specific example of a hole. The slit 13 extends along the end face 6a. The slit 13 is formed slightly away from the end surface 6a in the second direction. Therefore, the lock beam 10 is formed between the end surface 6a of the push unit main body 6 and the slit 13. The lock beam 10 extends linearly along the longitudinal direction of the slit 13. In the present embodiment, the lock beam 10 is a double-sided beam. The lock beam 10 is formed as a part of the plate-shaped push unit main body 6. As shown in FIG. 3, the lock beam 10 is a beam having a rectangular cross section. The slit 13 has an inner surface 13a on the beam side and an inner surface 13b on the main body side. The beam-side inner surface 13a and the main body-side inner surface 13b are planes orthogonal to the second direction. The beam-side inner surface 13a and the main body-side inner surface 13b are surfaces facing each other in the second direction. The beam-side inner surface 13a is also the outer surface of the lock beam 10. The inner surface 13b on the main body side is a surface that faces the lock beam 10 in the second direction with the slit 13 interposed therebetween.

Returning to FIG. 2, the hook 11 and the dowel 12 are formed so as to project upward from the component mounting surface 4a of the top plate main body 4. The hook 11 and the dowel 12 are arranged apart from each other in the second direction. As shown in FIG. 3, the hook 11 and the dowel 12 are arranged so as to sandwich the lock beam 10 in the second direction in a state where the push unit main body 6 is attached to the component mounting surface 4a of the top plate main body 4. There is. That is, the hook 11 faces the end surface 6a of the push unit body 6 in the second direction in a state where the push unit body 6 is attached to the component mounting surface 4a of the top plate body 4. Similarly, the dowel 12 is inserted into the slit 13 with the push unit main body 6 attached to the component mounting surface 4a of the top plate main body 4.

The hook 11 includes a hook body 15 projecting upward from the component mounting surface 4a of the top plate body 4, and a fitting claw 16 projecting in the second direction from the upper end of the hook body 15. The fitting claw 16 projects toward the dowel 12. Specifically, in a plan view, the fitting claw 16 projects from the hook body 15 toward the dowel 12. The fitting claw 16 has a flat guide inclined surface 16a. The guide inclined surface 16a is a surface that inclines in the vertical direction so as to approach the dowel 12 as it approaches the component mounting surface 4a of the top plate main body 4.

The dowel 12 has a guided curved surface 12a. The guide curved surface 12a is inclined in the vertical direction so as to approach the hook main body 15 of the hook 11 as it approaches the component mounting surface 4a of the top plate main body 4, and is curved so as to be convex toward the fitting claw 16. It is the side to do. Instead of forming the guided curvature surface 12a on the dowel 12, a flat inclined surface that inclines in the vertical direction so as to approach the hook body 15 of the hook 11 as it approaches the component mounting surface 4a of the top plate body 4 is formed. It may be provided.

Next, the operation of the resin component mounting structure E will be described with reference to FIG. In FIG. 3, the lock beam 10 when the push unit main body 6 is attached to the component mounting surface 4a of the top plate main body 4 is specified by reference numeral 10 (n). That is, the lock beam 10 moves in the order of reference numerals 10 (A), 10 (B), 10 (C), and 10 (D).

As shown in FIG. 3, first, the push unit main body 6 is placed on the component mounting surface 4a of the top plate main body 4 so that the lock beam 10 (A) faces the guide inclined surface 16a of the fitting claw 16 in the vertical direction. Position.

In this state, the push unit main body 6 is moved downward toward the component mounting surface 4a of the top plate main body 4 along the plate thickness direction of the push unit main body 6. Then, the lock beam 10 (B) comes into contact with the guide inclined surface 16a of the fitting claw 16. Due to this contact, the lock beam 10 (B) is elastically deformed in the second direction and elastically displaced so as to narrow the internal space of the slit 13. Further, at this time, the lock beam 10 (B) is elastically displaced slightly upward with respect to the push unit main body 6 due to the above contact, and is slightly twisted and deformed clockwise in FIG.

Then, when the lock beam 10 (C) exceeds the guide inclined surface 16a, the lock beam 10 (C) is twisted and deformed counterclockwise due to the elastic restoring force generated by the above-mentioned twisting deformation.

After that, the lock beam 10 (D) is inserted between the fitting claw 16 and the component mounting surface 4a of the top plate main body 4 by the elastic restoring force in the second direction. As a result, the lock beam 10 (D) is captured in the vertical direction between the fitting claw 16 and the component mounting surface 4a of the top plate main body 4, so that the push unit main body 6 is restricted from moving in the vertical direction. Will be done. Further, as a result, the lock beam 10 (D) is trapped between the hook body 15 and the dowel 12, so that elastic deformation in the second direction is restricted.

By restricting the elastic deformation of the lock beam 10 (D) in the second direction in this way, the lock beam 10 (D) cannot get over the fitting claw 16 upward. Therefore, the state in which the push unit main body 6 is attached to the component mounting surface 4a of the top plate main body 4 is surely maintained.

Although the preferred embodiment of the present invention has been described above, the above-described embodiment has the following features.

That is, in each resin component mounting structure E, the plate-shaped push unit main body 6 is moved toward the top plate main body 4 along the plate thickness direction of the push unit main body 6, so that the push unit main body 6 is moved toward the top plate main body 4. It is for mounting on the component mounting surface 4a of. The push unit main body 6 corresponds to the first resin component. The top plate main body 4 corresponds to the second resin component.

Each resin component mounting structure E is provided on the push unit main body 6, and has a lock beam 10 elastically deformable in a direction orthogonal to the plate thickness direction of the push unit main body 6, a hook 11 protruding from the component mounting surface 4a, and a hook 11. Includes dowel 12 and. The dowel 12 corresponds to the convex portion.

The hook 11 and the dowel 12 are arranged so as to sandwich the lock beam 10 in a state where the push unit main body 6 is attached to the component mounting surface 4a of the top plate main body 4. The hook 11 includes a hook body 15 projecting from the component mounting surface 4a and a fitting claw 16 projecting from the hook body 15.

The push unit main body 6 is moved toward the top plate main body 4 in order to attach the push unit main body 6 to the component mounting surface 4a of the top plate main body 4. Then, the lock beam 10 gets over the fitting claw 16 with elastic deformation of the lock beam 10 and is captured between the fitting claw 16 and the component mounting surface 4a. As a result, the lock beam 10 is restricted from moving in the direction away from the component mounting surface 4a. Further, the lock beam 10 is captured between the hook main body 15 and the dowel 12, so that elastic deformation of the push unit main body 6 in a direction orthogonal to the plate thickness direction is restricted.

According to the above configuration, the resin component mounting structure E is realized, which is durable because the hook 11 itself does not need to be elastically deformed, and is hard to come off because the lock beam 10 is captured in all directions.

Further, the lock beam 10 is a double-sided beam. According to the above configuration, the strength of the lock beam 10 can be ensured.

Further, a slit 13 is formed in the vicinity of the end surface 6a forming the peripheral edge of the push unit main body 6. A lock beam 10 is formed between the end surface 6a and the slit 13. According to the above configuration, the lock beam 10 is formed only by forming the slit 13 in the push unit main body 6, so that the lock beam 10 can be easily formed.

Further, the dowel 12 is inserted into the slit 13 in a state where the push unit main body 6 is attached to the component mounting surface 4a of the top plate main body 4. According to the above configuration, elastic deformation of the lock beam 10 that narrows the internal space of the slit 13 in the second direction can be suppressed.

Further, the slit 13 extends along the end surface 6a of the push unit main body 6. According to the above configuration, the lock beam 10 extending along the end surface 6a of the push unit main body 6 is realized.

The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the spirit.

For example, as shown in FIG. 2, the lock beam 10 is a double-sided beam, but instead, the lock beam 10 may be a cantilever.

Further, instead of providing the slit 13 in the push unit main body 6, for example, a square hole may be formed in the push unit main body 6. In this case, the lock beam 10 is formed between the end surface 6a of the push unit main body 6 and the square hole.

1 Top plate assembly 2 Top plate 3 Push unit 4 Top plate main body 4a Parts mounting surface 5 Peripheral wall 6 Push unit main body 6a End surface 7 Push button 10 Lock beam 11 Hook 12 Dowel 12a Guide curved surface 13 Slit 13a Beam side inner surface 13b Main body side inner surface 15 Hook body 16 Fitting claw 16a Guide inclined surface E Resin part mounting structure

Claims (5)

By moving the plate-shaped first resin component toward the second resin component along the plate thickness direction of the first resin component, the first resin component is moved to the second resin component component. It is a resin component mounting structure that is mounted on the mounting surface.
A lock beam provided on the first resin component and elastically deformable in a direction orthogonal to the plate thickness direction of the first resin component.
Hooks and protrusions protruding from the component mounting surface,
Including
The hook and the convex portion are arranged so as to sandwich the lock beam in a state where the first resin component is attached to the component mounting surface of the second resin component.
The hook includes a hook body protruding from the component mounting surface and a fitting claw protruding from the hook body.
By moving the first resin component toward the second resin component in order to attach the first resin component to the component mounting surface of the second resin component, the lock beam is locked. By overcoming the fitting claw and being trapped between the fitting claw and the component mounting surface with elastic deformation of the beam, movement in the direction away from the component mounting surface is restricted, and the hook body and the hook body By being trapped between the convex portions, elastic deformation in the direction orthogonal to the plate thickness direction of the first resin component is regulated.
Resin parts mounting structure. The lock beam is a double-sided beam.
The resin component mounting structure according to claim 1. A hole is formed in the vicinity of the peripheral edge of the first resin component.
The lock beam is formed between the peripheral edge of the first resin component and the hole.
The resin component mounting structure according to claim 2. The convex portion is inserted into the hole in a state where the first resin component is attached to the component mounting surface of the second resin component.
The resin component mounting structure according to claim 3. The hole is a slit extending along the periphery of the first resin component.
The resin component mounting structure according to claim 3 or 4.

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