JPH0713254Y2 - Case with hanging hole - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a housing with a hanging hole for hanging a wall of an electronic device or the like.

[Prior Art] Conventionally, this type of housing with hook holes includes those as shown in FIG. 2 and FIG.

Of these, the one shown in FIG. 2 has a keyhole-shaped hooking hole 11 provided on the back surface of a casing 10 of an electronic device or the like. And, this hanging hole 11 has a large-diameter hole 11a into which the head of the screw 13 is inserted, and a small-diameter hole 11b formed continuously at the upper part of the large-diameter hole 11a, slightly larger than the thread diameter of the screw 13. Was becoming.

Also, the one shown in FIG.
The hanging hole 12 formed by continuously forming the large diameter hole 12a and the small diameter hole 12b was provided. Then, in accordance with the shape of the hanging hole 12, the inside of the housing 10 has a keyhole-shaped rib 15 that protrudes inward from the lower side of the hanging hole 12 and is bent upward. This rib 15 has a hanging hole 12
When the head of the screw 13 is inserted into the housing, the amount of screw entry is regulated so that the head of the screw 13 does not enter too much into the housing, and as a blinder to prevent the inside of the housing from being seen from the outside. Had a function.

The housing 1 is hooked on the wall 14 by inserting the hooking holes 11 and 12 having the above-described configuration into the head of the screw 13 or the like fixed to the wall 14 and sliding the housing 10 downward.

[Problems to be solved] In the above-described conventional housing with hook holes, a keyhole-shaped penetration hole is provided on the back surface of the housing, and a head such as a screw is inserted into the interior of the housing to hang the housing on a wall. Due to this structure, there were the following problems.

First, in the case having the hanging hole 11 shown in FIG. 2,
When the length of the screw screwed into the wall is longer than the expected protrusion of the screw, the housing is hung on the wall to make contact with the printed wiring board 16 mounted inside the housing to create an electrical short. There is a risk that the printed wiring board 16 itself may be damaged.

Therefore, a countermeasure has been taken by providing an escape hole matching a shape of the hanging hole 11 in a part of the printed wiring board 16. However, when the escape hole is provided, wiring and component mounting are restricted, which adversely affects the internal mounting of the housing.

Further, in the case having the hanging hole 12 shown in FIG. 3,
The rib 15 was provided inside the housing so as to face the hanging hole 12,
For example, when the rib 15 is formed by die casting or a plastic molding die, the upper portion of the rib 15 cannot be connected in terms of processing. Therefore, when the protrusion of the screw is longer than the expected length and a force is applied in the wall direction with the housing hung on the wall, the upper portion of the rib 15 bends, restricting the amount of screw penetration and external force. There was a problem that the meaning of the blindfold was lost.

The present invention has been made in consideration of the above-mentioned problems, and it has no influence on the internal mounting of the housing, and the head of the screw is firmly supported to prevent rattling on the wall. It is an object of the present invention to provide a housing with a hanging hole that enables

[Means for Solving the Problems] In order to achieve the above object, the present invention is provided between a hook-shaped rib having a hook-shaped cross section and an inverted U-shape provided on one surface of a housing body, and two ribs. And a locking rib integrally formed with the housing body at a position corresponding to the hook-shaped rib, and a reinforcing rib provided on the back surface corresponding to the vicinity of the opening of the hook-shaped rib of the locking rib. Is provided.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 (a) is an overall perspective view of a housing with a hanging hole showing an embodiment of the present invention, and FIG. 1 (b) is an enlarged front view of a hanging hole which is a main part of the embodiment. 1C is a sectional view taken along the line AA of FIG. 1B, and FIG. 1D is a sectional view taken along the line BB of FIG. 1B.

In these drawings, reference numeral 1 denotes a housing, and the back surface of the housing 1 is provided with two elongated holes 1a. Outside the elongated hole 1a, hook-shaped ribs 2a forming the hanging hole 2 are provided. Here, the hook-shaped rib 2a has an inverted U shape that covers the outer periphery of the elongated hole 1a, and the cross section thereof has a hook shape in which the upper portion is bent inward.

A locking rib 2b is provided integrally with the housing 1 at a position located between the two elongated holes 1a and facing the hook-shaped rib 2a.

Further, a reinforcing rib 2c for preventing the locking rib from bending even when a force is applied in the wall direction is provided inside the housing corresponding to the vicinity of the closed portion of the hook-shaped rib 2a of the locking rib 2b. It is provided.

Next, a method of mounting the housing with hooks having such a configuration will be described.

First, the opening of the hook-shaped rib 2a of the hook 2 provided in the housing 1 is aligned with the screw 4 screwed into the wall 3.

Then, when the housing 1 is slid downward, the screw 4 is positioned and supported by the closed portion of the hook-shaped rib 2a in the height direction and both sides in the width direction. And screw 4
The action of the force in the wall direction is received by the locking rib 2b and the reinforcing rib 2c, and the screw 4 does not contact the printed wiring board 5 inside the housing.

[Advantages of the Invention] As described above, the present invention is provided with the locking ribs and the reinforcing ribs, so that the screw is prevented from entering the inside of the housing and coming into contact with the printed wiring board, and the internal mounting is restricted. Never.

Further, even if the lengths of the screws screwed into the wall are different, the rattling can be reduced because the fitting size of the screw head is already set by the hook ribs and the locking ribs.

Further, even if an impact is applied to the front surface of the housing by hitting it, the locking ribs and the reinforcing ribs receive the impact and the mounting portion is not damaged.

[Brief description of drawings]

FIG. 1 (a) is an overall perspective view of a housing with a hanging hole showing an embodiment of the present invention, and FIG. 1 (b) is an enlarged front view of a hanging hole which is a main part of the embodiment. 1C is a sectional view taken along the line AA of FIG. 1B, FIG. 1D is a sectional view taken along the line BB of FIG. 1B, and FIG. 2A to FIG. 3A to 3C are views showing a conventional housing with hook holes. 1: Case, 2b: Locking rib 1a: Long hole, 2c: Reinforcing rib 2: Hanging hole, 2a: Hook-shaped rib

Claims (1)

[Scope of utility model registration request] 1. A hook-shaped rib having a hook shape and an inverted U-shaped cross section provided on one surface of a housing body, and a hook-shaped rib located between the two elongated holes and corresponding to the hook-shaped rib. A housing with a hook hole, comprising: a locking rib formed integrally with the housing body; and a reinforcing rib provided on the back surface of the locking rib corresponding to the vicinity of the closed portion of the hook-shaped rib. body.