JPH09257013A - Wall hanging structure for box body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent easy come-off of a box body after hanging over a screw by forming an locking part formed with a stopper having upward and downward inclination portions and a spring part on a box body side inside a screw hole composed of a hole for a screw head and a hole for a screw part. SOLUTION: A hole 12a for a screw head formed on a lower box body 11b covers a screw 2 installed on a wall 1. A screw head 2a is then housed in the hole 12a. Downward force is applied to the box body 11. A stopper 13b of an locking portion 13 is moved along a shape of the screw head 2a, and lifted in an outer direction of the wall 1. A screw part 2b is housed in a hole 12. When the downward force is further applied to the box body 11, the screw part 2b is struck against an upper surface of the hole 12b. The stopper 13 rides over the screw head 2a. An upper portion of the engagement portion 13 presses the screw head 2a. The screw 2 is engaged with the locking portion 13, for completing hanging of the box body 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall-mounted structure of a housing of various devices and products.

[0002]

2. Description of the Related Art Conventionally, as a generally known wall hanging structure, a screw 2 attached to a wall 1 as shown in FIG.
The screw hole 4 provided in the housing 3 is engaged with the screw hole 4.

The screw 2 has a screw head 2a and a screw portion 2b, and the screw hole 4 also has a corresponding screw head hole 4a and a screw portion hole 4b.

[0004] In the case of engagement, the screw 2 has a screw head hole 4a.
Then, the housing 3 is attached to the wall 1 by pulling the housing 3 downward to hook the screw hole 4b on the screw portion 2b.

[0005]

However, the conventional wall-mounted structure has a problem that when a user or another person carelessly comes into contact with the device, the housing of the device is easily detached from the screw.

[0006]

In order to solve such a problem, the present invention forms a locking portion having a stopper portion having an upper inclined portion and a lower inclined portion and a spring portion in a housing. ,
When the housing is attached to the wall, the stopper portion moves along the screw head, and when the stopper head gets over the screw head, the locking portion and the screw head are engaged at the position of the upper inclined portion.

[0007]

FIG. 1 is a perspective view showing a back surface of an apparatus according to a first embodiment of the present invention. Since the image shows a communication terminal device, the casing 11 formed by molding is composed of an upper casing 11a and a lower casing 11b, and is hooked on a screw 2 attached to a wall 1 and hung on the wall as in the conventional case. It

The lower housing 11b is formed with a screw hole 12 including a screw head hole 12a and a screw portion hole 12b, and a locking portion 13 having a spring portion 13a and a stopper portion 13b inside the screw hole 12. Are formed.

The screw head hole 12a and the screw portion hole 12b are sized (including clearance) in accordance with the diameters of the screw head 2a and the screw portion 2b which are engaged when hanging on a wall.

2A and 2B are views for explaining the locking portion in which the dotted line portion in FIG. 1 is enlarged. FIG. 2A is a perspective view seen from the inside of the lower housing 11b, and FIG. FIG.

In this example, the locking portion 13 has a duller shape, and is provided with a spring portion 13a extending from the lower side of the screw head hole 12a and a stopper portion 13b. This locking portion 13
May be molded integrally with the lower housing 11b or may be separately formed and fixed.

The stopper portion 13b has a lower inclined portion 13c and an upper inclined portion 13d as shown in FIG. The lower slope 13c has a gentle slope or a curved line, and the upper slope 13d has a steep slope.

FIG. 3 is a sectional view for explaining the locking portion 13, showing a state in which the screw 2 attached to the wall 1 is engaged.

The height X of the spring portion 13a of the locking portion 13 is the same as the height of the screw head 2a of the screw 2 used. By doing so, the screw head 2a is engaged with the locking portion 1 when engaged.
This is because the upper part of 3 is pressed by the elastic force of the spring part 13a.

The lower sloping portion 13c of the stopper portion 13b is gently sloping to facilitate movement along the screw head 2a when engaged, and the upper sloping portion 13d is steeply sloping. , Is engaged with the screw head 2a so as not to be easily disengaged when not needed. Of course, if necessary, the housing 11 can be moved upward and removed.

FIG. 4 is a view for explaining the engaging operation of the locking portion 13 and the screw 2. First, when the screw 2 attached to the wall 1 is covered with the screw head hole 12a, the screw head 2a enters the screw head hole 12a as shown in (a).

Next, when a downward force is applied to the housing 11 as it is, the stopper portion 13b of the locking portion 13 moves along the shape of the screw head 2a as shown in FIG. Lift up. At this time, the threaded portion 2b has the threaded hole 12
It is in b.

When a downward force is further applied, the screw portion 2b hits the upper surface of the screw hole 12b, and at the same time, the stopper portion 13b gets over the screw head 2a, and the upper portion of the locking portion 13 is lifted as shown in (c). It works to press the screw head 2a, the screw 2 and the locking portion 13 are firmly engaged, and the wall hanging of the housing 11 is completed.

FIG. 5 is a partial cross-sectional view for explaining the second embodiment of the present invention. In this embodiment, a flexure stopper 14 for restricting the movable range of the locking portion is provided inside the locking portion 13 of the first embodiment.

The flexure stopper 14 may be provided with a dedicated member, or as shown in the drawing, a molded product (for example, a boss) of a substrate or a housing may be fixed at a position separated by a predetermined distance.

The predetermined distance is the height W shown in (a), and this height W is determined by the amount of flexure of the locking portion 13 (material of the mold) and is within the elastic deformation range.

The flexure stopper 14 exerts a force on the locking portion 13, and acts to regulate and restrain the amount of flexure and deformation.
When the device is in a wall-mounted state, when a load is applied to the housing 11 of the device as shown in (a), a load is also applied from the screw 2 to the locking portion 13, but as shown in (b), The stop portion 13 bends, comes into contact with the deflection stopper 14, for example, the substrate, and does not bend any more.

At this time, the height h of the housing from the wall 1 shown in (a) becomes approximately H-W as shown in (b).

When the deflection stopper is provided in this way,
It is possible to prevent breakage of the locking portion due to the load on the device.

FIG. 6 is a perspective view showing an essential part of the third embodiment of the present invention, in which a U-shaped (including U-shaped) rib 15 is provided around the locking portion 13. The rib 15 is formed of, for example, a synthetic resin, and is fixed to the housing 11 with an adhesive or the like.

By adding the ribs 15 in this way, it becomes impossible to directly see the inside of the device through the screw holes, and it is possible to further prevent foreign matter such as insects and dust from entering the device.

In the above embodiment, the case has been described as a molded product, but the case is not limited to this, and any material may be used. Further, although the description has been made with screws for hanging on the wall, it goes without saying that the fixing means such as nails having the same action are equivalent.

[0028]

As described above in detail, according to the present invention, the housing is provided with the locking portion including the stopper portion having the two inclined portions and the spring portion, so that the housing can be used as a wall-mounting screw. The effect is that it is easy to attach, and it does not come off easily once it is inserted.

Further, since the locking portion presses the screw head when the housing is engaged with the screw, not only rattling of the front and rear of the apparatus does not occur after hanging on the wall, but also the locking portion has dust inside the apparatus. It also has the effect of preventing foreign matter from entering.

INDUSTRIAL APPLICABILITY The present invention can be widely applied to communication terminal equipment, molded products for rosettes and cable relays, wall clocks and thermometers, and other wall-mounted products.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2A is a perspective view of the locking portion viewed from the inside of the housing. FIG. 2B is a view seen from an arrow A.

FIG. 3 is a cross-sectional view for explaining a locking portion.

FIG. 4 is a diagram for explaining an engaging operation of a locking portion and a screw.

FIG. 5 is a partial sectional view illustrating a second embodiment of the present invention.

FIG. 6 is a perspective view showing a main part of a third embodiment of the present invention.

FIG. 7 is a perspective view showing a conventional wall hanging structure.

[Explanation of symbols]

 11 Housing 12 Screw hole 12a Screw head hole 12b Screw hole 13 Locking part 13a Spring part 13b Stopper part 13c Lower slope part 13d Upper slope part 14 Deflection stopper 15 Rib

Claims (5)

[Claims] 1. A wall-hanging structure for a housing in which a screw mounted on a wall and a screw hole provided in the housing are engaged with each other, a screw hole having a screw head hole and a screw portion hole, and a screw hole inside the screw hole. An engaging portion provided with a stopper portion having an upper inclined portion and a lower inclined portion and a spring portion is formed on the housing, and when the housing is hung on the wall, the stopper portion serves as a screw head of the screw. A wall-hanging structure for a housing, wherein the locking portion and the screw head are engaged with each other at a position of the upper inclined portion when the screw head moves along the screw head and gets over the screw head. 2. The lower slope is a gentle slope or a curve, and the upper slope is a steep slope.
The wall-mounted structure of the housing described in. 3. The wall-hanging structure for a housing according to claim 1, wherein a flexure stopper for restricting a movable range of the locking portion is provided inside the locking portion. 4. The casing according to claim 3, wherein the deflection stopper is configured by fixing a molded product of a substrate or a casing inside the locking portion and at a position separated by a predetermined distance. Body wall hanging structure. 5. The wall-hanging structure for a housing according to claim 1, wherein a U-shaped rib is provided so as to surround the locking portion.