JPH0328632B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a binding fixture for arranging a wire harness to a steel plate body of an automobile.

(Prior Art) Conventionally, as shown in FIGS. 11 to 14, a wire harness W disposed on a steel plate body of an automobile has a mounting piece corresponding to the installation route of the wire harness W, that is, as shown in FIG. It has a plate-shaped mounting piece 102, FIG. 12 has a substantially T-shaped mounting piece 103, FIG. 13 has an L-shaped mounting piece 104, and FIG. 14 has a substantially Z-shaped mounting piece. A predetermined wire harness W is assembled by abutting the wire harness W against each attachment piece of the fastener 101 having the piece 105 and wrapping and fixing it around each attachment piece with a band T made of adhesive vinyl tape or the like. The wire harness W was disposed by being elastically engaged with the attachment hole 108 of the steel plate body 107 via the locking leg portion 106 provided vertically on each attachment piece.

(Problem to be Solved) Therefore, in the prior art, it is necessary to prepare multiple types of fasteners 101 having mounting pieces depending on the installation route of the wire harness W, which increases the number of man-hours for parts management. In addition, in the fasteners 101 shown in FIGS. 12 to 14, a large number of turns of the band T are required in order to maintain the shape of the wire harness W and to prevent the fasteners 101 from shifting, which requires an extra number of steps. In addition, since this wrapping work is done manually, there are problems such as individual differences between workers, making it impossible to sufficiently prevent deviations in shape and position.

The present invention has been made to solve the above-mentioned conventional problems, and provides a wire harness that can be assembled according to the wire harness installation route using one type of fastener. The purpose of this invention is to provide a binding fixture for.

(Means for Solving the Problems) In order to solve the above-mentioned technical problems, the present invention provides a wire harness that is assembled to a steel plate body of an automobile in a shape along its installation route. A fastener with a vertical portion is set in a cradle of the jig main body of a molding jig consisting of a jig main body and a lid body having an injection molding chamber shaped to match the installation route of the wire harness. After placing a plurality of electric wires of the attachment portion of the wire harness to the steel plate body on the fastener and fitting the lid body to the jig body, a quick-drying and moldable synthetic material is placed in the injection molding chamber. A binding for arranging a wire harness in which a resin-based adhesive is injected to form a resin enveloping body, the plurality of electric wires and fasteners are collectively fixed by the resin enclosing body, and the wire harnesses are sequentially assembled and molded. Resist in fixtures.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a binding fixture that is integrally formed with the fixing portion of the wire harness W.
The fastener 2 is made of injection molded synthetic resin or the like in advance, and the resin wrapper 25 fixes the fastener 2 to the wire harness W.

Reference numeral 2 denotes the aforementioned fastener, which is made of synthetic resin or the like, and is integrally formed with a substantially flat mounting piece 3 and a locking leg portion 5 that hangs down from the central lower surface of the mounting piece.

Reference numeral 3 denotes a mounting piece for the fastener 2, which is formed into a substantially flat plate shape, and has protrusions 4 formed on the lower surface of both ends thereof.
A locking leg portion 5 is vertically provided on the lower surface of the central portion of the mounting piece 3.

Reference numeral 5 denotes the above-mentioned locking leg part, in which a flat central shaft 6 hanging down from the central lower surface of the mounting piece 3 is provided, and the lower end of the central shaft 6 has a pressure-receiving surface 8 extending left and right. A locking leg 10 having a generally wedge-shaped cross section extends symmetrically upward obliquely from the vicinity of the joint between the pressure receiving block 7 and the central shaft 6 through the thin wall portion 9. A horizontal shoulder portion 1 is provided at the upper end of this locking leg 10 and comes into contact with the lower surface side of a mounting hole 27 provided through the steel plate body 26.
1 is provided, and a substantially tongue-shaped neck portion 12 that abuts the edge surface of the attachment hole 27 is integrally formed on this shoulder portion 11 .

The locking leg portion 5 of the fastener 2 formed in this manner is inserted into the mounting hole 27 of the steel plate body 26 and pressed, so that the locking leg 10 is inserted into the central shaft 6 through the thin wall portion 9.
When the locking leg is elastically displaced to the side and passes through the mounting hole 27, the locking leg is elastically restored so that the neck 12 of the locking leg 10 comes into contact with the edge surface of the mounting hole 27, and the shoulder 11 touches the lower surface of the steel plate body 26. It is formed so that it comes into contact with and is locked.

The fastener 2 thus formed is housed together with the wire harness W in the molding jig 13 of the resin wrapper 25, and a quick-drying moldable synthetic resin adhesive is injected into the jig 13. The adhesive is solid-molded to form a resin enveloping body 25, and the wire harness W and the fastener 2 are integrally fixed by this resin enveloping body 25 to form the binding fixture 1.

Next, the molding jig 13 for the resin enveloping body 25 will be explained.

This molding jig 13 is constructed as a mating type consisting of a jig main body 14 and a lid body 15.
When combined, an injection molding chamber 16 having a substantially circular cross section and a hole 17 in which a wire harness W having a slightly small diameter is housed are formed on both sides of the injection molding chamber 16. Further, the shape of the molding chamber 16 of the main body 14 is formed into a linear shape, a substantially L-shape, a substantially T-shape, a substantially Z-shape, etc. according to the arrangement route of the wire harness W, and in this example, the shape is a straight line. The case of shape is illustrated. In the center longitudinal direction of the peripheral wall 16a of this molding chamber 16 is a groove 1 having a width H and a length L.
8 is formed, and a holder 19 for the fastener 2 is formed in the center of this groove 18. This cradle 1
9 is formed into a substantially rectangular trapezoid shape with a height corresponding to the height t1 of the protrusion 4 of the fastener 2, and a recess 20 corresponding to the pressure t2 of the mounting piece 3 of the fastener 2 is formed on the upper surface side. A hole 21 is formed in the center of this recess into which the locking leg 5 of the fastener 2 can be inserted. Further, the peripheral walls 17 of the holes 17 on both sides of the main body 14
In a, there is a flat portion 22 that substantially aligns with the top surface of the mounting piece 3 of the fastener 2 when the fastener 2 is placed on the pedestal 19.
is formed. Further, an injection port 23 is provided through the center of the lid 15 .

Next, the forming of the binding fixture using the forming jig 13 will be explained.

First, when the locking leg 5 of the fastener 2 is inserted into the hole 21 of the jig main body 14 and the mounting piece 3 is fitted into the recess 20, the hole 21 is closed by the mounting piece 3, and the left and right protrusions 4 The end face of the mounting piece 3 is brought into contact with the side surface of the molding chamber, the groove 18 forms a gap in which the adhesive 24 can be injected on the lower face of the mounting piece 3, and the upper face of the mounting piece 3 is aligned with the flat part 22. Ru. After that, the plurality of electric wires W1 are placed on the mounting piece 3, and the lid body 1 is closed.
5 to the jig main body 14, and inject the adhesive 24 from the injection port 23. This adhesive 24 is a quick-drying and moldable thermoplastic adhesive, such as a hot melt adhesive mainly composed of polyester resin, and is formed into a rod shape at room temperature, and the adhesive 24 of this rod shape is heated to a high temperature. The resin enveloping body 25 can be formed by injecting and curing the resin while melting it at about 200° C. using a viscosity applicator (not shown). At this time, the hole 21 of the jig body 14 is
Since the adhesive is closed, the adhesive does not enter into the locking leg 5 side, and since a gap is formed on the lower surface of the mounting piece 3, the adhesive 24 is sufficiently filled on the lower surface side of the mounting piece 3. The fastener 2 can be integrally fixed to the wire harness W at the same time as the wire harness W is bundled, and quality problems caused by misalignment of the wire harness W can be solved.
In addition, since the adhesive 24 is quick-drying, the resin enveloping body 25 can be molded very easily, and the shape of the injection molding chamber 16 of the molding jig 13 can be shaped using a wire as shown in FIGS. 8 to 10. Harness W
By forming the wire harness W into a shape corresponding to the route, the resin enveloping body 25 can be formed according to the route, and moreover, several types of fixing can be performed depending on the route of the wire harness W using one type of fastener 2. It has many features such as easy assembly of the wire harness and therefore easy parts management.

In the above embodiments, the resin enclosing body 25 is formed using a thermoplastic adhesive, but the invention is not limited to this. good. Further, the locking legs of the fastener are not limited to those shown in the drawings, and may be locking legs that lock onto brackets, bolts, etc., for example.

(Effects of the Invention) The present invention provides a wire harness that is assembled to a steel plate body of an automobile in a shape along its installation route, in which a fastener having a locking leg hanging from a substantially flat mounting piece is attached to the wire harness. A forming jig consisting of a jig body and a lid body having an injection molding chamber of a shape suitable for the installation route is set on the holder of the jig body, and the steel plate body of the wire harness is placed on the same fastener. After placing the plurality of electric wires on the mounting part and aligning the lid body with the jig body, a quick-drying and moldable synthetic resin adhesive is injected into the injection molding chamber to form a resin enveloping body. By forming a structure in which the plurality of electric wires and the fastener are collectively fixed by the resin enveloping body and sequentially assembled and molded, the fasteners can be integrally fixed to the wire harness. This eliminates quality problems such as misalignment, and since it is a quick-drying adhesive, it is extremely easy to mold the resin encasement, and the shape of the injection molding chamber of the molding jig can be adjusted easily. By forming the shape into a shape that corresponds to the route of the wire harness, it is possible to form a resin encasement that corresponds to the route, and moreover, it is possible to fix several types of wire harness W according to the route with one type of fastener. Wire harness assembly can be easily carried out.
Therefore, parts management is also facilitated.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a perspective view of a binding fixture, Fig. 2 is a perspective view of a fastener, Fig. 3 is an exploded perspective view of a forming jig, and Fig. 4 is a forming jig. Fig. 5 is a vertical sectional view of Fig. 4, and Fig. 6 is a longitudinal sectional view of Fig.
The figure is the same - line sectional view, and Figure 7 is the same -
Line sectional views, FIGS. 8 to 10 are perspective views showing other aspects of the binding fixture, and FIGS. 11 to 14 are perspective views of conventional fasteners. 1... Binding fixture, 2... Fastener, 5... Locking leg, 13... Molding jig, 14... Jig body, 1
5... Lid body, 16... Injection molding chamber, 19... cradle, 24... Synthetic resin adhesive, 25... Resin enclosing body.

Claims (1)

[Claims] 1. In a wire harness that is assembled to a steel plate body of an automobile in a shape that follows the installation route, a fastener having a locking leg vertically attached to a substantially flat mounting piece is injected into a shape that matches the installation route of the wire harness. A molding jig consisting of a jig body having a molding chamber and a lid body is set on a cradle of the jig body, and
After placing the plurality of electric wires of the attachment part of the wire harness to the steel plate body on the fastener and fitting the lid body to the jig body, the molding part is placed in the injection molding chamber in a quick-drying and moldable form. For arranging a wire harness having a structure in which a synthetic resin adhesive is injected to form a resin enveloping body, the plurality of electric wires and fasteners are enclosingly fixed by the resin enclosing body, and sequentially assembled and molded. Binding fixture.