JPH07222332A - Fixing unit - Google Patents

Abstract

PURPOSE:To provide a fixing unit for fixing a plurality of flatly bundled wires easily at a required position with no positional shift while decreasing the thickness required for fixing and sealing the fixing hole hermetically. CONSTITUTION:A sheet material 3 is fused to a plurality of wires 1 bundled flatly and a fixing unit 4 is fused at a part of the sheet material where the wire 1 is not present on the side to be fused with the wire 1. The fixing unit 4 is provided with a part 4c for closing the periphery of a fixing hole 6a. when a flat wire harness is fixed to a food liner liner 6 constituting the inner wall of heat insulating layer 12 in a refrigerator, the heat insulating effect is enhanced and the heat insulating material is not leaked through the fixing hole 6a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting device for fixing a large number of electric wires, such as a flat wire harness, which are bundled in a flat shape, at a required position.

[0002]

2. Description of the Related Art Conventionally, when a flat wire harness in which a large number of electric wires are bundled in a flat shape is fixedly attached to a required position on the back side of a hood liner which constitutes an inner wall of a refrigerator / freezer, a paper tape or the like is used. Although it is done by sticking the flat wire harness, the work of sticking one by one with paper tape etc. in this way is troublesome, and if the place to stick is shifted, the end part of the electric wire which constitutes the flat wire harness However, there is a problem in that the wiring cannot be reached because it does not reach the required position.

[0003] Therefore, as a conventional flat wire harness mounting device for solving such a problem, there is, for example, one disclosed in Japanese Patent Publication No. 5-46766.

FIG. 18 is a perspective view of the flat wire harness mounting device described in the above publication, and FIG.
It is sectional drawing seen from the cutting plane line OO of FIG.

In this flat wire harness mounting apparatus, one side surface of a flat wire harness 2 in which a plurality of parallel electric wires 1 are bundled into a flat shape by an adhesive means is made of the same material as the insulation coating of the electric wire 1. A laminated sheet 14 having a resin layer is used, and an engaging portion 1 for mounting at a tip is provided between the laminated sheet 14 and the electric wire 1.
The mounting unit 15 is fixed to the electric wire 1 by fusing the insulating coating of the electric wire 1 and the synthetic resin material of the laminate sheet 14 with the base portion 15b of the mounting unit 15 having 5a interposed.

In the flat wire harness mounting device having such a structure, the engaging portion 15a at the tip of the mounting unit 15 is inserted into and engaged with the mounting hole formed at a required position, whereby the mounting unit 15 is integrated with the mounting unit 15. The flat wire harness 2 is fixed.

[0007]

By the way, when the flat wire harness 2 is fixed to the hood liner constituting the wall of the heat insulating layer of the refrigerator / freezer by the flat wire harness attaching device having such a structure, for example, There is such a problem.

FIG. 20 is a cross-sectional view of essential parts showing a state in which the flat wire harness mounting device described above is mounted on the back side (upper side in the drawing) of the hood liner 6 which constitutes the inner wall of the heat insulating layer of the refrigerator / freezer. .

The flat wire harness mounting device is mounted by inserting and engaging the engaging portion 15a of the mounting unit 15 into the mounting hole 6a formed in the hood liner 6 which constitutes the inner wall of the refrigerator, and thereafter, A liquid urethane is filled between the hood liner 6 and an outer wall (not shown) to form a heat insulating layer 12 made of urethane foam on the back side of the hood liner 6.

In such a flat wire harness mounting device, since the base portion 15b of the mounting unit 15 and the laminate sheet 14 are superposed and fused on the electric wire 1, the flat wire harness mounting device is arranged in the heat insulating layer 12. The occupying thickness Y is a thickness obtained by stacking the base portion 15b of the mounting unit, the laminate sheet 14 and the electric wire 1,
The thickness of the heat insulating layer 12 is substantially reduced by this amount, the heat insulating effect is reduced, and the temperature locally rises at the portion where the attachment device of the flat wire harness is arranged.

Further, the heat insulating layer 12 is provided after the flat wire harness attaching device is attached to the hood liner 6.
Liquid urethane is supplied to the back side of the hood liner 6 and foamed, but in the conventional flat wire harness mounting device, since urethane leaks from the mounting hole 6a of the hood liner 6, a tape or the like is attached. It was necessary to prevent leakage, and the work was troublesome.

The present invention has been made in view of the above points, and a plurality of electric wires such as a flat wire harness, which are bundled in a flat shape, can be attached easily and without displacement. It is an object of the present invention to reduce the thickness required for mounting and to make it possible to seal a mounting hole for mounting.

[0013]

In order to achieve the above-mentioned object, the present invention is constructed as follows.

That is, according to the first aspect of the present invention, the sheet-shaped body is fused to the flat-shaped bundle of electric wires, and the electric wires of the sheet-shaped body are fused. The mounting unit is fused to a portion of the surface on the side where the electric wire does not exist.

According to a second aspect of the present invention, the mounting unit integrated with the plurality of electric wires is inserted into a mounting hole formed in an object to which the mounting unit is to be mounted, and the mounting unit is mounted. An engaging portion that engages with the hole is provided, and at least one of the attachment unit, the sheet-shaped body, and the attachment target has a periphery of the attachment hole in a state in which the engaging portion is engaged. A closing portion is provided for closing.

According to a third aspect of the present invention, the mounting unit integrated with the plurality of electric wires is inserted into a mounting hole formed in an object to which the mounting unit is to be mounted, and the mounting unit is mounted. An engaging portion that engages with a hole is provided, and the plurality of electric wires are fused to the sheet-shaped body in a state where the plurality of electric wires are branched and arranged on both sides so as to bypass the attaching unit, An electric wire around the mounting unit closes the periphery of the mounting hole in a state where the engaging portion is engaged.

According to a fourth aspect of the present invention, a laminate sheet is fused to a flat wire harness in which a plurality of electric wires are bundled in a flat shape, with a laminate sheet protruding to both sides in the width direction of the flat wire harness. Along with the above, it is a portion protruding to both sides of the laminate sheet,
Also, the flat wire harness is fused to the surface on the side where the plate-shaped base portions of the mounting unit are fused, and the mounting unit has an umbrella-shaped engaging portion protruding from the base portion. In addition to having a closing portion that is provided continuously in the circumferential direction around the engaging portion, the engaging portion,
The flat wire harness is inserted into an attachment hole formed in an object to be attached and engaged with the attachment hole, and the closing portion closes the periphery of the attachment hole with the engagement portion engaged. To do.

[0018]

According to the present invention as set forth in claim 1, the sheet-like body is fused to a plurality of electric wires bundled in a flat shape, and the mounting unit is fused to the sheet-like body. Since the mounting device is configured by using the mounting unit, the mounting unit can be easily mounted at a desired position without displacement.

Further, since the mounting unit is fused to the surface of the sheet-shaped body on the side where the electric wires are fused and where the electric wires do not exist, the mounting unit is thicker than the conventional mounting device. When the flat wire harness is attached to the hood liner forming the wall of the heat insulation layer of the refrigerator, the heat insulation effect is improved.

According to the present invention as set forth in claim 2, in addition to the function and effect of the present invention as set forth in claim 1, a closing portion for closing the periphery of the mounting hole in which the mounting unit is mounted is provided. Therefore, for example, when the flat wire harness is attached to the hood liner of the refrigerator to form the heat insulating layer, the heat insulating material does not leak from the attachment hole.

According to the present invention described in claim 3, the same operational effect as the operational effect of the present invention described in claim 2 can be obtained.

According to the present invention as set forth in claim 4, in addition to the function and effect of the present invention as set forth in claim 2, mounting units are provided on both sides in the width direction of the flat wire harness. The flat wire harness can be reliably and stably attached via the attachment unit.

[0023]

Embodiments of the present invention will now be described in detail with reference to the drawings.

Embodiment 1 FIG. 1 is a perspective view of a mounting device according to Embodiment 1 of the present invention.
FIG. 2 is a sectional view taken along the section line BB of FIG.

In this embodiment, a flat wire harness 2 formed by bundling a plurality of electric wires 1 in a flat shape by an adhesive means or the like is attached to a desired position. Each electric wire 1 of the flat wire harness 2 is connected to a conductor. , An insulating film of vinyl chloride covering the conductor.

In this embodiment, a vinyl chloride rectangular laminate sheet 3 as a sheet-like member is equally projected on the flat wire harness 2 on both sides of the flat wire harness 2 in the width direction (left and right direction in FIG. 2). To the surface on the side where the flat wire harness 2 is fused, which is the protruding portion on both sides.
The plate-shaped base portion 4a of the mounting unit 4 is fused.

FIG. 3 is a perspective view of the mounting unit, and FIG. 4 is a sectional view taken along the section line A--A of FIG.

The mounting unit 4 includes a rectangular plate-shaped base 4
An umbrella-shaped engaging portion 4b is provided on a, and a brim-shaped closing portion 4c that is continuously inclined in the circumferential direction around the engaging portion 4b is provided. The mounting unit 4 is made of, for example, a synthetic resin such as polyacetal or 6 nylon.

The engaging portion 4b of the mounting unit 4 of this embodiment
Is formed into an umbrella shape and its free end portion is divided into four, but as another embodiment of the present invention, it may not be divided, or may be divided into a larger number. .

In this embodiment, the flat wire harness 2 is attached to the hood liner constituting the wall of the heat insulation layer of the refrigerator / freezer.
The description will be made by applying it to the case of attaching a general refrigerator / freezer-refrigerator prior to that.
This will be described based on the exploded perspective view of FIG.

First, the harness assembly 5 for supplying power to each part and transmitting and receiving signals is attached to the back side of the hood liner 6, and the outer shell 7 serving as an outer cabinet and electric parts are housed. Electrical box 8,
The back plate 9, base plate 10 and bottom plate 11 are assembled.

As a result, a space is formed between the hood liner 6 and the outer shell 7, the electrical equipment box 8, the back plate 9, the base plate 10 and the bottom plate 11, and the urethane inlet 9a of the back plate 9 is placed in this space. Liquid urethane is injected from the above and foamed to form a heat insulating layer.

FIG. 6 is a cross-sectional view of essential parts in a state where the heat insulating layer 12 is formed by attaching the flat wire harness attachment device of this embodiment to the hood liner 6 of the refrigerator-freezer assembled as described above.

In the flat wire harness mounting device, the engaging portion 4a of the mounting unit 4 is inserted into the mounting hole 6a formed in the hood liner 6 as the object to be mounted, so that the umbrella-shaped engaging portion 4b is formed. The end portion engages with the attachment hole 6a, the flat wire harness 2 is fixed to a required position of the hood liner 6, and the tip of the collar-shaped closing portion 4c of the attachment unit 4 has a hood on the outer periphery of the attachment hole 6a. The attachment hole 6a is closed by being pressed against the liner 6.

In this embodiment, since the mounting unit 4 is provided in the portion of the laminate sheet 3 where the electric wire 1 does not exist, the mounting unit of the flat wire harness in the heat insulating layer 12 is different from that of the conventional example in FIG. The occupied thickness X is reduced, which improves the heat insulating effect.

In this embodiment, since the brim-shaped closing portion 4c of the mounting unit 4 is easily bent, urethane foaming is smoothly performed even in the portion where the mounting unit 4 is mounted, and the heat insulating layer 12 is reliably formed. Will be done.

Further, since the mounting hole 6a is closed by the closing portion 4c of the mounting unit 4, when the liquid urethane is injected into the back side of the hood liner 6, the urethane does not leak from the mounting hole 6a, and therefore, Unlike the conventional example, it is not necessary to attach a tape or the like to prevent the urethane from leaking.

Moreover, in this embodiment, the mounting unit 4
Are provided on both sides of the flat wire harness 2 in the width direction, the flat wire harness 2 is reliably and stably fixed to the hood liner 6.

In this embodiment, the mounting unit 4 has one closed portion 4c continuously formed in the circumferential direction.
As another embodiment of the present invention, it is needless to say that the sealing performance may be enhanced by forming concentric double, triple or more around the engaging portion 4a.

Second Embodiment FIG. 7 is a perspective view of a mounting device according to a second embodiment of the present invention.
FIG. 8 is a sectional view taken along the section line D-D in FIG. 7.
9 is a perspective view of the mounting unit of this embodiment, and FIG. 10 is a sectional view taken along the section line C-C of FIG.
In these figures, parts corresponding to those of the first embodiment are designated by the same reference numerals.

In this embodiment, the mounting unit 4 ₁ has a disc-shaped base 4 ₁ a as shown in FIGS. 9 and 10.
In Example 1 are formed by the engaging portion 4 only ₁ b is projected the same umbrella and, occlusion 4c is not formed.
Meanwhile, the flat wire harness 2 and the mounting unit 4
On both sides of the ₁ laminate sheet 3 ₁ in the longitudinal direction are fused (the left-right direction in FIG. 8), around a position where the attachment unit 4 ₁ are fused, respectively, side mounting unit 4 ₁ is fused closing portion 3 ₁ a protruding is formed in an annular shape.
Other configurations are similar to those of the above-described first embodiment.

FIG. 11 is a cross-sectional view of the main part of the attachment device of this embodiment attached to the hood liner 6 of a refrigerator-freezer.

The mounting apparatus of the flat wire harness, the engaging portion 4 ₁ b of the attachment unit 4 _1, by inserting the mounting hole 6a formed in the hood liner 6, the umbrella engaging portion 4 ₁ b of The flat wire harness 2 is fixed to the hood liner 6 by engaging the end portion with the mounting hole 6a. At this time, the leading end of the laminate sheet 3 ₁ of the closing part 3 ₁ a has a mounting hole 6a is closed is pressed against the hood liner 6 of the outer periphery of the mounting hole 6a.

Also in this embodiment, since the mounting unit 4 ₁ is provided in the portion of the laminated sheet 3 _{1 where} the electric wire 1 does not exist, the heat insulating effect is improved, and the closed portion 3 ₁ a of the laminated sheet 3 ₁ is improved. This prevents the urethane of the heat insulating layer 12 from leaking.

Third Embodiment FIG. 12 is a perspective view of a mounting device according to a third embodiment of the present invention, and FIG. 13 is a cross-sectional view of essential parts in a state where the mounting device of this embodiment is mounted on a hood liner 6. The same reference numerals are attached to the portions corresponding to the above-described second embodiment.

In the second embodiment, the laminated sheet 3 is used.
_Although the closed portion 3 1a is formed in ₁ , the laminated sheet 3 is attached with the annular member 13 having a cushioning property at the position surrounding the mounting unit 4 ₁ to form the closed portion in this embodiment. Other configurations are the same as those in the second embodiment.

The mounting device of this embodiment is composed of the mounting unit 4
₁ of the engaging portion 4 ₁ b, by inserting into the mounting holes 6a formed in the hood liner 6, the end portion of the engaging portion 4 ₁ b of umbrella is engaged with the attachment hole 6a, flat wire The harness 2 is fixed to the hood liner 6. At this time, the end surface of the annular member 13 attached to the laminate sheet 3 is
The mounting hole 6a is closed by being pressed against the hood liner 6 on the outer periphery of the mounting hole 6a.

Also in this embodiment, since the mounting unit 4 ₁ is provided in the portion of the laminated sheet 3 where the electric wire 1 does not exist, the heat insulating effect is improved, and the laminated sheet 3 is provided with the annular member 13. The closure prevents urethane from leaking.

[0049] In this embodiment, the annular member 13, since a material having a cushioning property, heat insulating layer 12 urethane foam is performed smoothly can be reliably formed even at a portion where the mounting unit 4 ₁ is attached It will be.

Fourth Embodiment FIG. 14 is a perspective view of a mounting device according to a fourth embodiment of the present invention, and FIG. 15 is a cross-sectional view of an essential part of the mounting device of this embodiment mounted on a hood liner 6. The same reference numerals are attached to the portions corresponding to the above-mentioned third embodiment.

In the above-mentioned third embodiment, the laminated sheet 3 is used.
Although the annular member 13 is attached to the above to form a closed portion, the laminated sheet 3 in this embodiment is not provided with the closed portion. On the other hand, the mounting hole 6a of the engaging portions 4 ₁ b of the attachment unit 4 _1, which is fused to the laminate sheet 3 is inserted
On the hood liner 6 side where the
A closed portion 6b protruding toward the laminate sheet 3 along the circumferential direction is formed in an annular shape. The hood liner 6 of this embodiment is made of ABS resin, for example. Other configurations are similar to those of the above-described third embodiment.

The mounting device of this embodiment is composed of the mounting unit 4
₁ of the engaging portion 4 ₁ b, by inserting into the mounting holes 6a formed in the hood liner 6, the end portion of the engaging portion 4 ₁ b of umbrella is engaged with the attachment hole 6a, flat wire The harness 2 is fixed to the hood liner 6. At this time, the tip of the closed portion 6b of the hood liner 6 is not
And the mounting hole 6a is closed.

[0053] Also in this embodiment, since the mounting unit 4 ₁ to the portion where the electric wire 1 of the laminate sheet 3 is not present is provided, improved heat insulating effect, also, the closed portion 6b formed in the hood liner 6 The urethane of the heat insulating layer 12 is prevented from leaking.

Fifth Embodiment FIG. 16 is a perspective view of a mounting device according to a fifth embodiment of the present invention, and FIG. 17 is a cross-sectional view of essential parts in a state where the mounting device of this embodiment is mounted on the hood liner 6. The same reference numerals are attached to the portions corresponding to the above-mentioned third embodiment.

In the third embodiment described above, the mounting unit 4
_{Although 1} is provided on both sides of the flat wire harness 2 in the width direction, in this embodiment, the flat wire harness 2 ₁ is a portion corresponding to the mounting unit 4 ₁ , and the plurality of electric wires 1 are once provided on both sides. It has a structure in which it is branched and refocused.
In the state where the mounting unit 4 ₁ is arranged in the vicinity of the center of the above, the laminated sheet 3 ₂ is fused. That is, in this embodiment, only _one mounting unit 4 ₁ is provided in the central portion of the flat wire harness 2 _{1 in} the width direction, and the area of the laminating sheet 3 ₂ is also small. Nonexistent part A of the wire 1 around the mounting unit 4 ₁ is the area larger than the inner diameter of the mounting hole 6a of the engaging portions 4 ₁ b of the attachment unit 4 ₁ is inserted. Other configurations are
This is the same as the third embodiment.

The mounting device of this embodiment is composed of the mounting unit 4
₁ of the engaging portion 4 ₁ b, by inserting into the mounting holes 6a formed in the hood liner 6, the end portion of the engaging portion 4 ₁ b of umbrella is engaged with the attachment hole 6a, flat wire harness 2 ₁ is fixed to the hood liner 6. At this time, the wire 1 which is fused to the laminate sheet 3 _2, attachment holes 6a is closed is pressed against the hood liner 6 of the outer periphery of the mounting hole 6a.

Also in this embodiment, since the mounting unit 4 ₁ is provided in a portion of the laminated sheet 3 _{2 where} the electric wire 1 does not exist, the heat insulating effect is improved, and the electric wire 1 around the mounting unit 4 ₁ is improved. The urethane of the heat insulating layer 12 is prevented from leaking.

As another embodiment of the present invention, it is needless to say that the closing portion may be provided by combining the closing portions of the above-mentioned embodiments.

Further, in the above-mentioned embodiment, the number of the mounting units 4, 4 ₁ is ₁ for the laminated sheets 3, 3 ₁ , 3 ₂ .
Although one or two are provided, a larger number of mounting units may be provided to more securely fix the flat wire harness 2.

In each of the above-described embodiments, the case where the refrigerator is attached to the hood liner has been described. However, it goes without saying that the present invention is also applied to a case where the refrigerator is attached to a required portion of another device.

[0061]

As described above, according to the present invention, a sheet-shaped body is fused to a plurality of electric wires bundled in a flat shape, and a mounting unit is fused and attached to the sheet-shaped body. Since the device is configured, it is possible to easily attach the plurality of bundled electric wires to a desired location through the attachment unit without displacement.

Further, since the mounting unit is fused to the surface of the sheet-shaped body on the side where the electric wires are fused and the portion where the electric wires do not exist, it is thicker than the conventional mounting device. When the flat wire harness is attached to the hood liner that constitutes the wall of the heat insulating layer of the refrigerator, for example, the thickness of the heat insulating material can be sufficiently secured, and the heat insulating effect is improved.

Further, since the closing portion for closing the periphery of the mounting hole to which the mounting unit is mounted is provided, for example, when the heat insulating layer is formed by mounting the flat wire harness on the hood liner of the refrigerator, the mounting hole is removed from the mounting hole. Urethane does not leak.

Further, since the mounting units are provided on both sides of the flat wire harness in the width direction, the flat wire harness can be reliably and stably mounted via the mounting unit.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view taken along section line BB of FIG.

FIG. 3 is a perspective view of the mounting unit according to the first embodiment.

4 is a cross-sectional view taken along the section line AA of FIG.

FIG. 5 is an exploded perspective view for explaining a procedure for assembling the refrigerator.

FIG. 6 is a cross-sectional view of essential parts in a state where the attachment device according to the first embodiment is attached to a hood liner.

FIG. 7 is a perspective view of a second embodiment of the present invention.

8 is a cross-sectional view taken along the section line DD of FIG.

FIG. 9 is a perspective view of an attachment unit according to a second embodiment.

FIG. 10 is a cross-sectional view taken along the section line CC of FIG.

FIG. 11 is a cross-sectional view of essential parts in a state where the attachment device according to the second embodiment is attached to a hood liner.

FIG. 12 is a perspective view of a third embodiment of the present invention.

FIG. 13 is a cross-sectional view of essential parts in a state where the attachment device of Embodiment 3 is attached to a hood liner.

FIG. 14 is a perspective view of a fourth embodiment of the present invention.

FIG. 15 is a cross-sectional view of essential parts in a state where the attachment device of Embodiment 4 is attached to a hood liner.

FIG. 16 is a perspective view of a fifth embodiment of the present invention.

FIG. 17 is a cross-sectional view of essential parts in a state where the attachment device of Embodiment 5 is attached to a hood liner.

FIG. 18 is a perspective view of a conventional mounting unit.

FIG. 19 is a cross-sectional view taken along the section line OO of FIG.

FIG. 20 is a cross-sectional view of essential parts in a state where the conventional attachment device is attached to a hood liner.

[Explanation of symbols]

1 wire 2,2 ₁ flat wire harness 3,3 _1, 3 _2, 14 laminate sheets 4,4 _1, 15 mounting unit 6 hood liner 6a mounting hole 4b, 4 ₁ b, 15a engaging portion 4c, 3 ₁ a, 6b blockage

Claims (4)

[Claims] 1. A flat cable comprising a plurality of electric wires,
A mounting device in which a sheet-shaped body is fused and a mounting unit is fused to a portion of the sheet-shaped body on the side where the electric wire is fused and where the electric wire does not exist. 2. The mounting unit integrated with the plurality of electric wires has an engaging portion which is inserted into a mounting hole formed in an object to which the mounting unit is to be mounted and which engages with the mounting hole. At least one of the mounting unit, the sheet-shaped body, and the mounted object is provided with a closing portion that closes the periphery of the mounting hole in a state where the engaging portion is engaged. The mounting device according to item 1. 3. The mounting unit integrated with the plurality of electric wires has an engaging portion that is inserted into a mounting hole formed in an object to which the mounting unit is to be mounted and engages with the mounting hole. However, the plurality of electric wires are fused to the sheet-shaped body in a state of being branched and arranged on both sides so as to bypass the mounting unit at a portion of the mounting unit, and the electric wire around the mounting unit is The mounting device according to claim 1, wherein the mounting portion closes the periphery of the mounting hole in the engaged state. 4. A laminate sheet is fused to a flat wire harness in which a plurality of electric wires are bundled in a flat shape in a state of protruding to both sides in the width direction of the flat wire harness, and both sides of the laminate sheet. The plate-shaped base portion of the mounting unit is fused to the surface of the protruding portion, and the flat wire harness is fused to the surface, and the mounting unit is projectingly provided on the base portion. Having an umbrella-shaped engaging portion, and a closing portion continuously provided in a circumferential direction around the engaging portion, wherein the engaging portion is an object to be attached with a flat wire harness. The mounting device is characterized in that it is inserted into the mounting hole formed in and is engaged with the mounting hole, and that the closing part closes the periphery of the mounting hole in the state where the engaging part is engaged. .