JP2008128355A - Support leg mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily mount a support leg to a case and to prevent the mounted support leg from coming off and losing its strength. <P>SOLUTION: A columnar protrusion 4 is formed inside a recess 2 for fitting the support leg 1. Axially extending ribs 7 are provided around the protrusion 4, and a hole 8 fitted to the protrusion 4 is formed in the support leg 1 formed of an elastic body. When the hole 8 of the support leg 1 and the columnar protrusion 4 in the recess 2 are placed to align each other and fitted, the fitted support leg 1 is pushed by the ribs 7 and clamped by the ribs 7 of the columnar protrusion 4 and an internal wall 10 of the recess 2 so as not to come off. The support leg 1 integrated, clamped by the columnar protrusion 4 and recess 2, is strong against impact. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a structure for attaching a support foot to a housing.

As a support foot for supporting a housing of an electronic device or an electric appliance, for example, a support foot (rubber foot) formed of an elastic member such as rubber or resin is attached to the bottom surface of the housing. For attachment of the support legs to the housing, for example, a method of providing a screw hole in the housing and attaching it with screws, or attaching it to the housing with a double-sided tape or an adhesive is often used.

However, as described above, in the method of mounting using screws, the screws must be tightened after positioning the support feet on the screw holes of the housing, which is surprisingly troublesome.

Also, in the method using double-sided tape, the double-sided tape must be attached so that it does not protrude from the support feet, the release ruled paper must be peeled off, and attached to the specified position on the housing. Difficult to align.

Further, when the support foot is directly attached to the housing with an adhesive, there is a problem that is more difficult than the case where the support foot is attached with a double-sided tape, for example, the adhesive must be uniformly applied to the support foot so that the adhesive does not protrude.

In addition, since a locking member such as a screw, a double-sided tape, or an adhesive is required, there is a problem that costs are increased accordingly.

As one method for solving these problems, as shown in FIG. 5 (a), a slit-like groove 20 is provided at the bottom of the housing, and cantilever separated by the groove is disclosed in (Patent Document 1). It describes what is attached by inserting a cushioning material 21 into a fitting portion provided at the tip of the foot having a form.

By the way, in this thing, since the shock absorbing material 21 was only inserted in the fitting part provided in the front-end | tip part which has the cantilever form separated by the groove | channel 20, it is easy to remove | deviate. In order to make this difficult to come off, it is conceivable to insert a buffer material 21 having a size larger than that of the fitting portion to increase the bending fitting pressure, but in order to force the buffer material 21 to be inserted, There is a problem that requires great power.

As one method for solving this problem (Patent Document 2), as shown in FIG. 5B, an opening 22 is provided in the bottom of the housing, and a support foot (rubber foot) 24 is provided in the opening 22. What to install is described.
In this structure, the support foot 24 has a shape in which a frustoconical locking portion 24a is connected to the support foot main body 24b via a locking groove 24c having the same diameter as that of the opening 22. When the locking portion 24a is fitted into the hole 22, the large-diameter portion of the truncated cone of the locking portion 24a is engaged with the periphery of the opening 22 to prevent the locking portion 24a from coming off.

Further, at this time, by providing the relief groove 22a in the opening 22, the portion of the relief groove 22a promotes the elastic deformation of the locking portion 24a, and as shown in FIG. R is attached and bent inward so that the engaging portion 24a can be easily fitted.

JP 2004-327795 A

Japanese Patent Application No. 2003-124641

However, in the case where the casing is provided with the opening 22 as shown in FIG. 5B, it is considered that the support foot 24 can be attached relatively easily, but as shown in FIG. 5C. By providing R, the portion of the locking groove 24c between the locking portion 24a and the support foot main body 24b becomes longer. Since the portion of the locking groove 24c has a small diameter, the strength is weak and it can be considered to break with a small impact.

Therefore, as shown in FIG. 5D, it is conceivable to form the R by cutting the opening 22 to reduce the thickness, but the locking portion 24a is easily detached by the thin amount. In addition, since the latching portion 24a is promoted by elastic deformation by the escape groove 22a, there is a problem that the latching portion 24a may come off if it is elastically deformed even by a slight impact.

SUMMARY OF THE INVENTION An object of the present invention is to make it easy to attach a support foot so that the attached support foot is difficult to come off and the strength is not impaired.

In order to solve the above-described problems, according to the present invention, in the support foot mounting structure attached to the electronic device casing, the fitting recess is provided, and the support foot formed of an elastic body is provided at the support foot mounting position of the casing. In addition, a configuration is adopted in which a recess for fitting the support foot having a columnar protrusion formed therein is provided, and the elastic body is inserted into the recess with the fitting recess and the columnar projection opposed to each other.

By adopting such a configuration, the support foot is inserted into the recess by fitting the hole of the support foot with the columnar protrusion in the recess. At this time, the inserted support legs are fitted into the recesses so that no gap is generated. Therefore, since it is sandwiched and integrated with the columnar protrusion and the recess, it is strong against impact.

At this time, it is possible to employ a configuration in which minute ribs extending in the axial direction are provided around the columnar protrusions.

By adopting such a configuration, the minute ribs of the columnar protrusions are formed in the same axial direction of the protrusions as the insertion direction of the support legs, and therefore do not hinder the insertion of the support legs that are elastic bodies. Further, when the support foot is fitted into the columnar protrusion and pressed by the rib, the pressing force acts on the inner wall of the recess. The pressing force that has reached the inner wall acts as a reaction to compress the support foot toward the inside. As a result, the support feet are sandwiched between the ribs of the columnar protrusions and the inner walls of the recesses, thereby preventing the support feet from coming off.

Moreover, the structure which formed the front-end | tip part of the rib diagonally so that the entrance / exit direction of the said support leg may become an acute angle at this time is employable.

By adopting such a configuration, it is possible to facilitate entry when the support foot is inserted into the recess.

Moreover, the structure formed in the hollow which opened at least one end of the columnar protrusion at this time is employable.

By adopting such a configuration, when the support foot is inserted into the concave portion, the compressed air can be smoothly inserted by releasing the compressed air through the opening provided in the columnar protrusion.

At this time, it is possible to adopt a configuration in which the length inserted into the recess is longer than the length of the support foot protruding from the recess of the support foot.

By adopting such a configuration, if the depth of the recess is increased to increase the number of portions engaged with the support legs, the engagement can prevent the housing from coming off even if the housing slides in the lateral direction, for example. .

Since the present invention is configured as described above, the support foot can be easily attached. Moreover, the attached support foot is difficult to come off and the strength can be increased.

The best mode for carrying out the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the mounting structure of the support foot 1 of this embodiment includes a recess 2 into which the support foot (rubber foot) 1 is inserted, and a support foot 1 to be engaged with the recess 2.

In this embodiment, the recess 2 adopts a cubic shape as shown in FIG. 2, and is formed on an L-shaped holder member attached to the housing 3 as shown in FIG. Further, a columnar protrusion 4 is formed in the opening 2 a of the recess 2.

In this embodiment, the protrusion 4 is formed in a cylindrical shape, and is provided at the center of the recess 2. Further, in this embodiment, the protrusion 4 is provided with a slit groove 5 having a hollow opening on the side facing the hole 8 of the support foot 1 to be described later, and communicates with the hole 6 on the upper side (housing 3 side). is there. Thus, by forming the hollow protrusion 4 and providing the slit groove 5 around the hollow protrusion 4, when the support foot 1 is attached to the recess 2, as will be described later, the compressed air can be released and smoothly inserted. It is.

Further, a rib (small protrusion) 7 extending in the axial direction is formed around the protrusion 4.

In this embodiment, the rib 7 is composed of six ribs 7, and three ribs 7 are provided on both sides of the slit groove 5 so as to be symmetrical as shown in FIG.

Further, as shown in FIGS. 3 and 4, each rib 7 is formed by obliquely cutting the distal end portion 7 a on the opening 2 a side of the concave portion 2, so that the later-described support foot 1 can be easily fitted. I can do it.

The support foot 1 is formed of, for example, an elastic body such as rubber or resin, and has a shape that fits into the recess 2 (preferably slightly larger than the recess 2).

That is, the supporting foot 1 may have an outer shape that fits the portion that fits into the recess 2. In this embodiment, the fitting side that fits into the recess 2 of the upper portion 1 a is formed in a cube as shown in FIG. 2. In addition, the lower portion 1b protruding from the concave portion 2 is changed to a taper by switching the side surface in the middle, thereby forming a substantially cubic clean shape.

At this time, the length of the upper portion 1a is formed to be longer than the length of the support foot lower portion 1b, and the protrusion amount (taper portion) of the support foot lower portion 1b from the recess 2 when fitted into the recess 2 is small. In this manner (by increasing the depth of the recess 2 for inserting the support foot upper portion 1a inserted in the recess 2), the portion where the recess 2 and the support foot 1 are engaged is increased. In this way, even when the support foot 1 slides the housing 3 in the lateral direction, for example, the support foot 1 does not come off against it.

The support foot 1 is provided with a fitting hole 8 in the center of the end surface of the upper part (insertion side) 1a. The fitting hole 8 is a circular shape that matches the cross-sectional shape of the columnar protrusion 4 of the recess 2 and is formed to be approximately the same as or slightly smaller than the diameter of the columnar protrusion 4 and fits between the protrusion 4 and the gap without gaps. It is like that. Since it can be made into a simple shape that does not require complicated processing in this way, productivity is also good.

The shape of the fitting hole 8 is circular in this embodiment, but other cross-sectional shapes, for example, a triangular shape, a quadrangular shape, etc., according to the cross-sectional shape of the columnar protrusion 4 formed in the recess 2. Is formed.

This configuration is configured as described above, and the insertion of the support foot 1 into the recess 2 is performed by supporting the columnar protrusion 4 in the recess 2 with the insertion side of the upper portion 1a of the support foot 1 facing the opening 2a of the recess 2. Fit with the hole 8 of the foot 1 in alignment. At this time, the rib 7 of the columnar protrusion 4 is formed in the axial direction of the protrusion 4. That is, since it is formed in the same direction as the direction in which the support foot 1 is inserted, entry of the support foot, which is an elastic body, is not hindered. Moreover, the approach of the support foot 1 is further facilitated by cutting the front end portion 7a of the rib 7 diagonally. When the support foot 1 is inserted into the recess 2, the compressed air is allowed to escape smoothly from the opening provided on the side of the columnar protrusion 4 facing the hole 8 of the support foot 1 and the slit groove 5 to the hole 6. It becomes. At this time, the inserted support foot 1 is fitted to the inner wall 10 of the recess 2 without generating a gap. Therefore, the support foot 1 is pushed by the rib 7 and the pressing force acts on the inner wall (outside) 10 of the recess 2 via the support foot 1 as shown by the arrow in FIG.

When this pressing force reaches the inner wall 10 of the concave portion 2, it goes inward as a reaction, so the support foot 1 is compressed. Therefore, the support foot 1 is sandwiched between the rib 7 of the columnar protrusion 4 and the inner wall 10 of the recess 2. As a result, the support foot 1 cannot be easily detached (unless it is attempted to remove it), and it is sandwiched between the columnar protrusion 4 and the recess 2 so as to be integrated with each other, so that it is resistant to impact.

At this time, the support foot 1 is formed by increasing the depth of the recess 2 so that the length of the upper portion 1 a inserted into the recess 2 is longer than the length of the lower portion 1 b of the support foot 1 protruding from the recess 2. Since the portion engaged with the support foot 1 is increased, for example, even when the housing slides in the lateral direction, it does not come off, and the shock absorbing power against vibration increases.

As described above, the recess 2 provided with the columnar protrusion 4 and the support foot 1 provided with the fitting hole 8 are fitted together, whereby the columnar protrusion 4 in the recess 2 and the hole 8 of the support foot 1 are The support foot 1 can be easily attached simply by fitting them so that they are aligned. In addition, at this time, the attached support foot 1 is difficult to come off and the strength can be increased. Moreover, since neither the support foot 1 nor the recessed part 2 has a complicated shape, processing of each member becomes easy.

In addition, although the attachment structure of this invention may make it attach the recessed part 2 to the housing | casing 3 as a holder structure like embodiment, it is not limited to this. In addition to this, for example, the recess 2 may be directly formed in the housing 3. Further, the shape of the opening 2a of the recess 2 is not limited to a square, and may be any shape other than a square, such as a circle, a triangle, and so on. At that time, it is natural that the support foot 1 is also formed into a circle, triangle,. Further, in this embodiment, the slit groove 5 is provided in the columnar protrusion 4. However, according to the shape of the recess 2 or the shape of the columnar protrusion 4, the slit groove 5 is provided on the side facing the hole 8 of the support foot 1 provided in the columnar protrusion 4. Although it is possible to have only the opening, in that case, it is necessary to form the opening so that the compressed air is sufficiently released.

The present invention can be used for all devices that require a support foot (rubber foot) because the support foot can be easily attached and the support foot can be firmly held only by fitting the support foot into the recess.

Perspective view of an embodiment Exploded perspective view of the embodiment Cross-sectional view of the embodiment Action explanatory diagram of the embodiment (A) Plan view of main part of conventional example, (b) exploded perspective view of conventional example, (c) sectional view of conventional example, (d) sectional view of conventional example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support leg 1a Upper part 1b Lower part 2 Recessed part 3 Case 4 Columnar protrusion 7 Rib 8 Hole

Claims (5)

In the support foot mounting structure that can be mounted on the electronic device casing,
A support leg provided with a recess for fitting and formed of an elastic body;
The support foot mounting position of the housing includes a recess for fitting the support foot formed with a columnar protrusion inside,
An attachment structure for a supporting foot, wherein the elastic body is inserted into the concave portion with the fitting concave portion and the columnar protrusion facing each other. The support foot mounting structure according to claim 1, wherein minute ribs extending in the axial direction are provided around the columnar protrusions. The support foot mounting structure according to claim 1 or 2, wherein a tip end portion of the rib is formed obliquely so that an entrance direction of the support foot is an acute angle. 4. The support foot mounting structure according to claim 1, wherein at least one end of the columnar protrusion is formed in a hollow shape. The support foot mounting structure according to any one of claims 1 to 4, wherein a length inserted into the recess is longer than a length of the support foot protruding from the recess of the support foot.

Images