JPH0374127A - Supporting device for electric wiring - Google Patents

Abstract

PURPOSE:To achieve sure sealing by providing many through holes for storing cables in a sleeve and slits for connecting each hole with the peripheral wall of the sleeve, and tapering the peripheral wall so that the dimension of a small diameter part is smaller than the inside diameter dimension of the tubular part of the main body and the dimension of a large diameter part is larger than the inside diameter dimension of the tubular part of the main body. CONSTITUTION:The lugs 14 at the tip of a wire harness 10 are pierced through a main body 20, a rubber-made packing 60, a hole 5 through a partition wall 1, and a rubber-made packing 50 in this order, and then each wire 12 of the wire harness 10 is set in the hole 42 of the sleeve 40 through use of a slit 44. When a nut 30 is screwed on the main body 20, the sleeve 40 is inserted into the tubular part 26 of the main body 20, while being pressed by the nut 30. The sleeve 40 is made of rubber, and the peripheral wall is tapered, and the large diameter dimension D3 is larger than the inside dimension D1 of the tubu lar part 26, so by the press-fitting, the slit 44 of the sleeve 40 is compressed, and the sealings between the main body 20 and the hole 5 of the partition wall 1 and between the wire and the sleeve 40 can be achieved at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a support device used when installing electrical wiring through a partition wall or the like.

[Conventional technology]

When wiring a so-called wire harness, which is a bundle of a large number of electric wires, through a partition wall or the like, the means shown in FIG. 6 and subsequent figures are usually adopted.

Figure 6 shows the case where a connector is used, and the bulkhead 1
The receptacle 110 is fixed to the receptacle 11.
Each wire of one wire harness 120 is connected to each pin 112 of one wire harness 120. The other wire harness 130 is also connected to the plug 140, and the plug 140 is connected to the receptacle 1.
After the plug 140 is inserted into the receptacle 110, the plug 140 is fixed to the receptacle 110 with a screw or the like. The wiring means using this connector has a high sealing performance at the penetrating part of the partition wall 110, and is not only waterproof, but also dustproof, dripproof, moistureproof, oilproof, etc.
Environmental resistance such as vibration resistance H and impact resistance can be satisfied.

However, connectors are expensive, and it is necessary to prepare connectors with various specifications depending on the configuration of the wire harness.

If the requirements for environmental resistance are not too strict, as shown in FIG. 7, the wire harness 200 is passed through a hole drilled in the partition wall 100, and the gap is closed with an appropriate sealant 240. means can be adopted. The wire harness 200 is connected to the connector 220, but if the connector 220 is connected to the wire harness 200 in advance, the diameter of the through hole must be made large to allow the connector to pass through, and the sealing filler 240 does not allow the opening to be made large. It becomes impossible to close it off. Therefore, the wire harness 20
It is necessary to connect to the connector 220 after passing through the 0, which reduces work efficiency.

In FIG. 8, a rubber grommet 310 that fits into the hole 105 of the partition wall 100 is attached to the outer periphery of the wire harness 300 to achieve sealing of the hole 105. At this time, a slit 320 is provided in the grommet 310 so that the grommet 310 can be fitted in any position of the wire harness 300.

However, even if this grommet 310 is used, it is not practical to attach the connector to the wire harness in advance because the dimensions of the hole 105 will become too large, considering environmental resistance. .

[Problem to be solved by the invention]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a support device for a wire harness that achieves a reliable seal when a harness having a wire connection lug attached to the tip of the wire is passed through a hole provided in a partition wall.

[Means to solve the problem]

The present invention provides a main body having a cylindrical portion provided with a thread having an outer diameter dimension that passes through a hole formed in a partition wall, a flange formed at one end of the cylindrical portion, and a head screwed into the main body passing through the partition wall. A nut having an opening at the top and a cylindrical sleeve made of an elastic material inserted into a cylindrical portion of one main body, the sleeve having a number of through holes for accommodating electric wires and slits connecting each type and the outer circumferential wall of the sleeve. The outer circumferential wall has a tapered configuration in which the dimension of the small diameter portion is smaller than the inner diameter dimension of the cylindrical portion of the main body, and the dimension of the large diameter portion is larger than the inner diameter dimension of the cylindrical portion of the main body.

[Effect]

By screwing the nut into the main body, the support device is fixed to the bulkhead, and the sleeve also performs the function of holding the wire in a sealed manner.

〔Example〕

Hereinafter, the present invention will be explained in detail using FIGS. 1 to 5.

FIG. 1 shows an overall outline, and illustrates a case in which the wire harness 10 is wired and supported by passing through the hole 5 formed in the partition wall 1. Each wire 12 constituting the nine-wire harness 10 is shown in FIG.
A lug 14 is attached to the tip.

The main components of the wire harness support device are a support device main body 20, a nut 30 and a sleeve 40 that are screwed into the support device main body 20, and rubber gaskets 5Cl and 60 are provided on both sides of the partition wall 1 to improve sealing performance. intervene.

Details of the main body 20 and the nut 30 are shown in FIGS. 2 and 3. The main body 20 has a hollow cylindrical portion 26 forming a flange portion 22 at one end, and a screw 24 on the outer periphery of the cylindrical portion 26. to be engraved. The inner diameter dimension of the cylindrical portion 26 is assumed to be D□.

The nut 30 is a bag-shaped nut having a hole 32 having a diameter slightly smaller than the inner diameter D□ of the cylindrical portion 26,
It is screwed onto the main body 20. The main body 20 and the nut 30 are made of metal, plastic, or the like.

Next, the sleeve 40, as shown in FIGS. 4 and 5,
It has a cylindrical shape with a tapered peripheral wall 46 and is made of, for example, neoprene rubber.

A number of holes 42 corresponding to the dimensions of the wires 12 constituting the wire harness 10 are formed on the circumference of the sleeve 40,
Each hole 42 has a slit 44 connecting it to the peripheral wall 46. The small diameter dimension D2 of the tapered peripheral wall 46 is 1 body 20
is smaller than the inner diameter dimension Dl, and the large diameter dimension D3 is the inner diameter dimension D
It is formed so that it is larger than l. For hole 42,
The wire 12 can be inserted from the side using the slit 44.

Therefore, as shown in FIG. 1, first, the top lug 4 at the tip of the wire harness 10 is connected to the main body 20, the rubber gasket 60.
After passing through the hole 5 of the partition wall 1 and the rubber packing 50 in this order, each wire 12 of the wire harness 10 is fitted into the hole 42 of the sleeve 40 using the slit 44.

Next, when the nut 30 is screwed into the main body 20, the sleeve 4
0 is pressed by the nut 30 and inserted into the cylindrical portion 26 of the main body 2o. The sleeve 4o is made of rubber, has a tapered outer circumferential wall 46, and has a large diameter dimension D3 that is larger than the cylindrical portion 26.
Since the inner diameter of D is larger than the sleeve 4, it is press-fitted.
The zero slit 44 is compressed and grips the wire 12 within the hole 42. At the same time, the nut 30 and the flange 2 of the main body 20
2 sandwich the partition wall 1. With this, the main body 2° and the partition wall 1
It is possible to simultaneously achieve a seal between the hole 5 and a seal between the wire 12 and the sleeve 40.

The tip of the wire 12 protrudes from the hole 32 of the nut 30,
Connect to a connector, etc.

〔Effect of the invention〕

As described above, the present invention is a support device used when wiring a wire harness through a partition wall, which includes a main body having a cylindrical bolt and a flange formed at one end of the bolt, and a nut screwed into the main body. and a sleeve that is press-fitted into the cylindrical portion of the main body, and the sleeve is provided with a number of holes through which the wires pass. Although the structure is simple and easy to manufacture, it has the function of simultaneously fixing the support device to the partition wall and holding the wire by simply screwing in a nut.

The main body and nut are made of metal or hard resin, and the sleeve is made of elastic rubber. Since a slit is formed to connect the through hole provided in the sleeve and the outer circumferential wall of the sleeve, the wire can be attached to the through hole with a lug or the like attached to the tip of the wire.

Further, since the outer circumferential wall of the sleeve is tapered to a size that allows it to be forcefully press-fitted into the cylindrical portion of the main body, by screwing in a nut, the space between the through hole of the sleeve and the wire is sealed.

[Brief explanation of drawings]

Fig. 1 is a perspective view of parts showing an embodiment of the present invention, Fig. 2 is a plan view showing the state in which the main body and the nut are engaged, Fig. 3 is a front view partially shown in section, and Fig. 4. is a plan view of the sleeve, FIG. 5 is a sectional view, and FIG. 6 is a perspective view showing a conventional device.
FIG. 7 is a perspective view showing another conventional example, and FIG. 8 is a perspective view showing still another conventional example. 1... Bulkhead 10... Wire harness 20... Main body 30... Nut 40... Sleeve 42... Through hole 44...Slit 50.60...Patsukin

Claims (1)

[Claims] 1. A support device used when wiring a wire harness made up of a large number of wires through a bulkhead, has a cylindrical part provided with a thread with an outer diameter that passes through a hole formed in the bulkhead, and one end of the cylindrical part. a cylindrical sleeve made of an elastic material and inserted into the cylindrical portion of the main body; The outer circumferential wall has a small diameter portion smaller than the inner diameter of the cylindrical portion of the main body, and a large diameter portion larger than the main body. An electrical wiring support device characterized by having a taper larger than the inner diameter of a cylindrical portion.