JP3271960B2 - Rubber foot mounting structure for electrical equipment, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber foot mounting structure used for electric appliances such as a rice cooker and a hot plate, and other various appliances (hereinafter referred to as electric appliances and the like).

[0002]

2. Description of the Related Art In the above-mentioned electric equipment, a required number of rubbers made of an elastic material are provided on the lower surface of the electric equipment to prevent slipping when the electric equipment is mounted on a table surface, a floor surface, or the like, or to protect the mounting surface. Mounting feet is performed. FIG. 3 shows an example of this. In this case, a rubber foot 1 is provided with a grounding portion 3 for closing the lower end of a cylindrical fitting portion 2, and a required number of vertical directions are provided on the outer peripheral surface of the fitting portion 2. Are provided. A flange 5 is provided on the outer periphery of the ground part 3.

[0003] A fitting hole 7 is provided on the lower surface of the equipment body 6 as a mounting portion, and the rubber foot 1 is inserted into the fitting hole 7 while elastically deforming the fitting portion 2 in the diameter reducing direction. 7 is held by the frictional force due to the elasticity in the radially expanding direction with respect to the inner peripheral surface of the base 7. The ribs 4 are provided to increase the frictional force due to the concentrated load. The flange 5 is engaged around the opening of the fitting hole 7 to prevent deformation of the rubber foot 1.

[0004] As shown in FIG. 4, the same effect can be obtained by omitting the rib 4 and providing a rib 4 ′ on the inner peripheral surface of the fitting hole 7 instead.

[0005]

As described above, the conventional rubber foot 1 has the inner peripheral surface of the fitting hole 7 of the equipment body 6 due to the frictional force of the cylindrical fitting portion 2 due to the elasticity in the radial direction. Was held in. On the other hand, when a force in the pull-out direction acts on the rubber foot 1, the length of the cylindrical fitting portion 2 is extended, and a force in the diameter-reducing direction is applied. By the action of the force in the diameter reducing direction,
There is an inconvenience that the frictional force with the inner peripheral surface of the fitting hole 7 is reduced and the rubber foot easily comes off.

Accordingly, an object of the present invention is to provide a mounting structure in which a rubber foot is hard to come off by utilizing a force in a radial direction acting on a fitting portion.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a required number of mounting portions on a lower surface of an apparatus main body, and a rubber foot for an electric device or the like in which rubber feet are fitted to each mounting portion. In the foot mounting structure, the rubber foot is formed by providing a grounding portion at a lower end of a cylindrical fitting portion, and the mounting portion is formed by a boss having a vertical axis and a cylindrical outer peripheral surface. Then, the fitting portion of the rubber foot was tightly inserted into the outer peripheral surface of the boss, and the rubber foot was held by the boss by frictional force due to the elasticity of the fitting portion in the radial direction.

According to the above construction, the force in the pull-out direction acting on the rubber foot exerts a force in the diameter reducing direction on the fitting portion, and the force is superimposed on the elasticity in the diameter reducing direction of the fitting portion itself, and the boss is formed. To increase the frictional force against the rubber feet, making it difficult for the rubber feet to come off.

[0009] A configuration may be adopted in which a peripheral wall surrounding the fitting portion of the rubber foot is provided around the boss. According to this configuration, the fitting portion is covered by the peripheral wall, and it is possible to prevent a user from accidentally touching the fitting portion.

In addition, a configuration is provided in which a flange is provided on the outer periphery of the ground portion of the rubber foot, and the flange is applied to the lower end surface of the peripheral wall. The boss is provided with an air passage reaching the lower end surface. A configuration in which a taper having a large diameter on the side is provided, a configuration in which an air hole is provided in the grounding surface of the rubber foot, and the like can be adopted.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to FIG.
A description will be given based on FIG. As shown in FIG. 1, the rubber foot 1 in the rubber foot mounting structure of the embodiment is also formed of an elastic member in the same manner as in the related art, and a lower end of a cylindrical fitting portion 2 is provided with a grounding portion 3 for closing the same. A flange 5 is provided on the outer periphery of the ground part 3.

A fitting hole 7 provided in a device body 6 such as an electrical device.
A boss 8 as a mounting portion is protrudingly provided at a central portion of the bottom surface of the device.
The boss 8 has a cylindrical outer peripheral surface, and its tip (lower end surface) coincides with the lower surface of the device main body 1 (see FIG. 1B). The boss 8 is provided with an air passage 9 penetrating from the upper end surface to the lower end surface in the case shown. The flange 5 is engaged around the opening of the fitting hole 7.

The rubber foot 1 has its fitting portion 2 elastically deformed in the radially expanding direction to be tightly fitted to the outer peripheral surface of the boss 8.
The boss 8 is held by the frictional force due to the elasticity in the diameter reducing direction. As described above, when an external force in the pull-out direction acts on the rubber foot 1, a force in the diameter decreasing direction acts on the fitting portion 2, and the force is superimposed on the elasticity in the diameter decreasing direction. As a result, the frictional force of the fitting portion 2 against the boss 8 is further increased, and the rubber foot 1 is prevented from coming off.

The air passage 9 provided in the boss 8 serves as an air outlet when the rubber foot 1 is fitted, and when the rubber foot 1 needs to be removed for some reason. This prevents a vacuum suction state and enables removal.

The peripheral wall 10 of the fitting hole 7 covers the fitting portion 2 to prevent the user from touching the fitting portion 2 and to prevent the rubber foot 1 from being accidentally removed. it can.

As shown in FIG. 1C, the boss 8 may be provided so as to protrude downward from the lower surface of the device main body 6, and a peripheral wall 10 'may be provided so as to surround the periphery.

In another embodiment shown in FIG. 2 (a), the lower end of the boss 8 is provided with a taper having a slightly larger diameter, and the fitting portion 2 of the rubber foot 1 is elastically deformed according to the taper. , It is harder to pull out.

The other embodiment shown in FIG.
Instead of omitting the air passage 9 of the boss 8, a vent 11 is provided in the center of the ground portion 3, and a valve 12 is desirably provided in the vent 11. A rib 13 is provided around the ventilation hole 11.

The ventilation hole 11 facilitates the attachment of the rubber foot 1 similarly to the air passage 9 described above, and allows the rubber foot 1 to be removed if necessary. When the rib 13 is pressed with a fingertip, the valve 12 opens the ventilation hole 11,
The attachment and detachment of the rubber foot 1 becomes easy.

As shown in FIG. 2 (a), in a configuration in which the boss 8 is tapered,
Alternatively, the configuration provided with the vent hole 11, the valve 12, and the rib 13 in FIG.

In each of the above embodiments, the shapes of the fitting portion 2 of the rubber foot 1 and the boss 8 are not limited to a cylindrical shape, but may be a polygonal cylindrical shape. The boss 8 and the peripheral wall 10 ′ may be separate members from the device main body 6, and may be attached to the device main body 6 by bonding, screwing, or the like.

[0022]

As described above, in the rubber foot mounting structure of the present invention, the rubber foot is fixed to the outer peripheral surface of the boss by the elasticity of the fitting portion of the rubber foot in the diameter reducing direction, and the diameter of the rubber foot is reduced by the force in the pulling direction. Is superimposed on the boss, the frictional force of the fitting portion with respect to the boss is increased, and a mounting structure in which the rubber foot is hard to come off can be realized. Thereby, it is possible to prevent a problem that the rubber foot comes off without permission in the process of use, and it is possible to use the device without damaging the mounting surface.

[Brief description of the drawings]

FIG. 1A is an exploded perspective sectional view of an embodiment. FIG. 1B is a sectional view of an assembled state of the embodiment.

2A is a cross-sectional view of another embodiment. FIG. 2B is a cross-sectional view of another embodiment.

FIG. 3A is an exploded perspective sectional view of a conventional example. FIG.

4A is a cross-sectional view of another conventional example. FIG. 4B is a cross-sectional view taken along line bb in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rubber foot 2 Fitting part 3 Grounding part 4, 4 'rib 5 Flange 6 Equipment main body 7 Fitting hole 8 Boss 9 Air passage 10, 10' Peripheral wall 11 Vent hole 12 Check valve 13 Rib

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47J 27/00 103 A47J 37/06 321

Claims (3)

(57) [Claims] In a rubber foot mounting structure for an electric device or the like in which a required number of mounting portions are provided on a lower surface of a device main body and rubber feet are fitted to each mounting portion, the rubber foot is connected to a cylindrical fitting portion. Formed by providing a grounding portion at the lower end, the mounting portion has a vertical axis, and is formed by a boss having a cylindrical outer peripheral surface, and the fitting portion of the rubber foot is tightly attached to the outer peripheral surface of the boss. the plug, the rubber feet are held on the boss by a frictional force due to diameter reduction direction of the elasticity of the fitting portion, the boss
A rubber foot mounting structure for an electric device or the like, wherein an air passage reaching the lower end surface is provided . 2. The rubber foot mounting structure according to claim 1 , wherein the boss is provided with a taper such that the lower end thereof has a large diameter. 3. The rubber foot mounting structure according to claim 2 , wherein an air hole is provided in the grounding surface of the rubber foot.