JPH08170611A - Case loading fixture - Google Patents

Abstract

PURPOSE: To secure fitting strength and improve fitting work efficiency by providing a plate part to come in contact with a boundary between cases, case fixing parts provided in the vertically reverse directions on both sides and having threaded holes, and a protruding part protruding from both edges of the plate part in the direction of coming in contact with the case. CONSTITUTION: In a fixture 2, both end parts of a plate part 4 have case fixing parts 5, and the case fixing parts 5 have screw insert holes 6 for passing fitting screws. The fixture has a protruding part 7, and a line collector 1 and the fixture 2 can be temporarily fastened to each other by inserting this protruding part 7 into the guide hole 8 of the line collector 1. There is therefore no need to hold the fixture so as not to be shifted during fitting work, and this can facilitate fitting work of screwing the fitting screw 9 into the threaded hole 10 of the line collector 1 through the screw insert hole 6 of the fixture 2 to fix the line collector 1 and the fixture to each other. After fitting, the fitted part of the protruding part 7 and guide hole 8 reinforces the fixing force of the screw fastened part, so that sufficient fixing force can be secured only by thread-fastening at two points.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading and mounting structure for loading and fixing a plurality of housings having substantially the same width, and more particularly to a loading and mounting tool suitable for improving mounting work efficiency.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
When mounting and mounting a plurality of housings, as shown in FIGS. 7 and 8, the housings are fixed by screwing using a mounting tool 13 having a screw insertion hole 6.

In the case of FIGS. 7 and 8, the fixture 13 is attached to the housing 12.
The screw hole 10 of the housing 12 and the attachment 13
Screw insertion holes 6 are provided so as to overlap each other, and the mounting screw 9 is inserted through the screw insertion holes 6 of the fixture 13.
Is screwed into the screw hole 10 of the housing.

Therefore, when carrying out the mounting work, the housing 1
Since the screw holes 10 of 2 and the screw insertion holes 6 of the fixture 13 are held so as to overlap with each other, they must be screwed, and work efficiency was not good.

Further, in the case of a housing of an electric device, an operating portion and a connector portion are often provided on the front and rear surfaces of the housing, and a heat radiation hole is often provided on a side surface portion. (Especially when loading the case,
Since the heat dissipation holes cannot be provided on the upper surface or the lower surface, the heat dissipation holes are often provided on the side surfaces. ) In such an electric device, if the heat generated inside the housing is not sufficiently radiated through the heat dissipation hole, a failure may occur. Therefore, in the case of a housing of an electric device having a heat dissipation hole on the side surface, a structure in which the fixture 13 covers the side surface (heat dissipation hole 11) of the housing 12 as shown in FIG. 8 is not preferable.

On the other hand, when the fixture 13 is divided into two as shown in FIG. 7 and each fixture is screwed at two points, sufficient attachment strength cannot be ensured and the housing may be laterally displaced. . Further, in order to secure the attachment strength, if each attachment is screwed at three or more points, the number of screwed points increases and the work efficiency deteriorates.

An object of the present invention is to provide a mounting fixture suitable for improving mounting work efficiency while ensuring sufficient mounting strength.

[0008]

According to a first aspect of the present invention, there is provided a mounting fixture for a housing, wherein the housing mounting device mounts and fixes a plurality of housings having substantially the same width, and abuts on a boundary between the housings. A housing fixing portion having a plate-shaped portion and screw holes provided on opposite sides of the plate-shaped portion in mutually opposite directions, and a protrusion provided in a direction in which the plate-shaped portion abuts the housing from both edges. I have.

According to a second aspect of the present invention, there is provided a load mounting device for loading and fixing a plurality of chassis having substantially the same lateral width. The housing fixing portion has screw holes provided in opposite directions to each other on both sides of the plate-shaped portion, and the projection portion provided on the contact surface of the plate-shaped portion or the housing fixing portion.

According to a third aspect of the present invention, there is provided a mounting fixture for a casing according to the first or second aspect, wherein the casing fixing portion is pointed with respect to a center point of the plate-like portion, and the protrusion is provided. The position of the section is also a point object.

According to a fourth aspect of the present invention, there is provided a loading fixture for a housing according to the first aspect or the second aspect, wherein the protrusion is one.
It is characterized by being individual.

According to a fifth aspect of the present invention, there is provided a mounting fixture for a housing according to any one of the first to third aspects, wherein the protrusion is two.
It is characterized by the fact that there are more than one piece.

[0013]

According to the loading mount for a housing of the present invention, the housing is fixed to have a plate-shaped portion that abuts the boundary between the housings and screw holes provided in opposite directions to each other on both sides of the plate-shaped portion. Since it has a portion and a protrusion, it is possible to improve the attachment work efficiency while ensuring sufficient attachment strength.

Further, by making the shape of the fittings crank-shaped, the fittings can be mounted without being covered by the fittings even when used in a case having a heat dissipation hole in a side surface portion.

(1) If the housing fixing portion is point-symmetrical with respect to the center point of the plate-shaped portion, and the projections are also provided at point-symmetrical positions, there is no directionality when mounting and the mounting work efficiency is improved. Can be improved.

(2) The screws for fixing the attachments are the screws that are usually used in the casing (the screws for assembling the casing itself in the case of a casing composed of a plurality of parts, the internal device If it is also used as a device such as a screw for fixing), it is not necessary to separately provide a screw hole for a mounting screw in the housing. Therefore, when carrying out the loading and mounting work, only the mounting tool needs to be prepared, and the parts management can be simplified. In addition, the appearance is not deteriorated by providing a screw hole for a mounting screw separately in the housing (unnecessary screw holes are unfavorable in appearance when the fixture is not used).

(3) Part of the heat dissipation hole provided in the housing is
If it is used as a hole for inserting the protrusion provided on the fixture, it is not necessary to provide a mounting hole for inserting the protrusion. Therefore, there is no deterioration of the appearance due to an unused insertion hole (an insertion hole in a state where the fixture is not used), which would occur when the insertion hole is provided separately.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a concentrator used in a LAN (local area network) (a device for connecting a plurality of communication cables, generally called HUB) will be described below.

FIG. 1 shows a concentrator 1 loaded in three stages,
FIG. 2 shows a fixture 2 for fixing the loaded concentrator,
FIG. 3 shows the mounting process.

In order to construct a LAN network,
The concentrator and a device such as a personal computer that composes a LAN network must be connected via a communication cable. An ordinary concentrator has a connector part 3 for connecting a cable to the front surface (arrow A) as shown in FIG.
On the rear surface (arrow B) for controlling the concentrator. Therefore, the heat dissipation holes for radiating the heat generated in the internal device (electrical circuit) are usually provided in the side surface portions (arrows C and D). (Since the concentrator is often used by being stacked, the heat dissipation holes are blocked when it is provided on the upper surface or the lower surface.) IC (semiconductor integrated circuit) used in this internal device
In many cases, if heat is not sufficiently dissipated, a problem often occurs, so it is not preferable to close the heat dissipation hole with a fixture. Therefore, the shape of the fixture is made into a crank shape as shown in FIG. 2 to avoid closing the heat dissipation hole.

In the fixture 2 shown in FIG. 2, there are housing fixing portions 5 projecting in opposite directions from each other at both ends of the plate-like portion 4,
The housing fixing portion 5 has a screw insertion hole 6 for inserting a mounting screw. Further, this fitting has a protrusion 7, and the concentrator 1 and the fitting 2 can be temporarily fastened by inserting this projection into the guide hole 8 of the concentrator 1 shown in FIG. Therefore, it is not necessary to hold the fixture so as not to shift during the mounting work, and the mounting screw 9 is screwed into the screw hole 10 of the concentrator 1 through the screw insertion hole 3 of the fixture 2 to connect the concentrator 1 and the fixture 2. Mounting work for fixing can be easily performed.

Further, after the mounting, the portion where the projection 7 and the guide hole 8 are fitted reinforces the fixing force of the screwed portion, so that it is possible to secure a sufficient fixing force only by screwing at two points. it can.

At this time, the mounting screw is a screw normally used for the housing of the concentrator (a screw for fixing the upper case and the lower case,
It can also be used as a screw for fixing the internal substrate). In this case, it is not necessary to separately prepare a mounting screw, and the parts management can be simplified.

Further, since the fitting has a crank shape, as shown in FIG. 1, the side surface of the middle-stage concentrator 1b is connected to the housing fixing portion for connection with the upper-stage concentrator 1a and the lower-stage concentrator 1c. The housing fixing portions for connection alternately come into contact with each other. Therefore, even if the concentrator is thin, it is possible to provide the screw holes in the side surface of the concentrator.

Further, if the shape of the fixture (the plate-like portion and the housing fixing portion) is point-symmetrical (protrusions are provided at point-symmetrical positions) as shown in FIG. Work efficiency can be further improved.

As an application example of the loading fixture described above, various configurations other than the above can be considered.

(Example 1) As shown in FIGS. 4A and 4B, a plurality of heat dissipation holes are provided on the side surface of the concentrator, and a part of the heat dissipation holes (11a, 11b, 11c, 11d) is provided. Also, it may be used as a guide hole for inserting the protrusion of the fixture, and the appearance may deteriorate due to unused insertion holes (insertion holes when the fixture is not used) such as when a separate insertion hole is provided. Can be avoided. In this case, if the shape of the fixture (the plate-shaped portion and the housing fixing portion) is point-symmetrical (the protrusion is provided at a point-symmetrical position), a common fixture may be used on both side surfaces. It is possible to simplify parts management. (When the front side (A) heat dissipation hole is used on one side surface part, the rear side heat dissipation hole is used on the other side surface part (B).) (Example 2) As long as the protrusion 2 of the fixture 2 is provided so as to fit into the guide hole of the housing, as shown in FIG. It may be provided in the part. Further, the shape of the protruding portion may be a square pole, a cylinder, a hemisphere, or the like as long as it protrudes to the side in contact with the concentrator. However, the guide hole provided in the concentrator must be provided in conformity with the shape of the protrusion (shape that fits with the protrusion).

(Example 3) It is not always necessary that the number of the protrusions provided on the fixture is two, and one protrusion 7 may be provided as shown in FIG. 6, or three or more protrusions may be provided. May be.

[0029]

[Effect] Since the loading fixture of the present invention is constructed as described above, it is possible to improve attachment work efficiency while ensuring sufficient attachment strength. Further, since the shape of the fitting is crank-shaped, the fitting can be mounted without being covered by the fitting even when the fitting is used in a case having a heat dissipation hole in a side surface portion.

Further, it also has the following effects.

(1) If the housing fixing portion is point-symmetrical with respect to the center point of the plate-shaped portion and the position of the projection is also point-symmetrical, there is no directionality at the time of mounting and the mounting work efficiency can be improved. it can.

(2) If a screw that is normally used in the housing is used as the screw for fixing the mounting tool, it is not necessary to provide a screw hole for the mounting screw in the housing, and the parts management is simplified. can do. In addition, the appearance does not deteriorate as in the case where a screw hole for a mounting screw is separately provided in the housing.

(3) Part of the heat dissipation holes provided in the housing
If the protrusion provided on the fixture is used as a hole for inserting, the appearance will not be deteriorated due to an unused insertion hole as in the case where an insertion hole is separately provided. Further, if the point-symmetrical fixture as described in (1) above is used, the parts can be made common to both side surface portions.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a housing is stacked and fixed by using a mounting fixture of the present invention.

FIG. 2 is a perspective view showing a loading fixture of the present invention.

FIG. 3 is a perspective view showing a mounting method of the loading fixture of the present invention.

FIG. 4 is a perspective view showing an embodiment of the present invention.

FIG. 5 is a perspective view showing an embodiment of the present invention.

FIG. 6 is a perspective view showing an embodiment of the present invention.

FIG. 7 is a perspective view showing a state in which a housing is stacked and fixed using a conventional mounting fixture.

FIG. 8 is a perspective view showing a state in which the housing is stacked and fixed using the conventional mounting fixture.

[Explanation of symbols]

 1 Concentrator 2 Fixture 3 Connector part 4 Plate part 5 Case fixing part 6 Screw insertion hole 7 Projection part 8 Guide hole 9 Mounting screw 10 Screw hole 11 Radiating hole 12 Case 13 Fixture of conventional example

Claims (5)

[Claims] 1. A loading fixture for loading and fixing a plurality of housings having substantially the same lateral width, the plate-shaped portions abutting on the boundary between the housings, and the plate-shaped portions provided on opposite sides of the plate-shaped portions in mutually opposite directions. A mounting fixture comprising: a housing fixing part having a screw hole formed therein; and a protrusion provided in a direction in which the housing abuts on both edges of the plate-shaped part. 2. A loading fixture for loading and fixing a plurality of housings having substantially the same lateral width, the plate-shaped portions abutting on the boundaries between the housings, and the plate-shaped portions provided on opposite sides of the plate-shaped portions in mutually opposite directions. A mounting fixture having a housing fixing part having a screw hole formed therein and a protrusion provided on the contact surface of the plate-shaped part or the housing fixing part. 3. The loading according to claim 1, wherein the housing fixing portion is point-symmetrical with respect to the center point of the plate-shaped portion, and the position of the protrusion is also point-symmetrical. Fixture. 4. The loading fixture according to claim 1, wherein the number of protrusions is one. 5. The loading fixture according to claim 1, wherein there are two or more protrusions.