JPS5854813Y2 - Harness fixing device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a harness fastener.

As a means for holding and fixing the harness, a method is usually used in which the harness is wound and attached using a stopper that is engaged with a hole in a drilled plate.

Such fasteners always required a drilled hole and were always used at a planned location.

In addition, with fasteners that do not require mounting holes and are simply used to wind multiple harnesses, fixing them to the board relies on other means, which requires two different operations, which increases the process. It was uneconomical.

The present invention was made to eliminate the above-mentioned drawbacks, and its purpose is to eliminate the need to drill mounting holes and utilize a means of locking to commonly used bolts. It is an object of the present invention to provide a harness fixing device that can provide a fixing means that is as strong as, or stronger than, that attached to a drilled hole.

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

FIG. 1 shows a front view of a harness fixing device 10 according to the present invention, and FIG. 2 shows a plan view.

The harness fixing device 10 includes a substrate 11, and a U-shaped frame 12 is connected to one end surface of the substrate 11.

Inside the frame 12, a tongue piece 13 extends in an inclined manner from the opening peripheral surface toward the center.

Since the tongue piece 13 is used to press and hold the harness body, the tongue piece 13 is formed with a relatively thin wall thickness and is easily bent.

On one surface of the substrate 11, leg pieces 14 and 15 are arranged in a divided manner independently, facing each other by thin walled portions 16 and 17, and forming an interval 21 therebetween.

A perforated hole 18 is provided in the center of the substrate 11, and the thin portions 16 and 17 are formed to surround the perforated hole 18.

Since the perforated hole 18 is for passage of a screw, which will be described later, it is preferable that it be larger than the outer diameter of the screw.

The inner diameter portion of the drilled hole 18 is simply circular and has no portion that comes into contact with the thread diameter portion.

The upper end faces of the leg pieces 14 and 15 facing the perforation holes 18 are provided with 1
Two claws 20 are provided on each leg piece 14,15.

The thin portions 16 and 17 are formed with an inner diameter larger than the outer diameter of the screw in order to engage with the screw passing through, and at the same time, the thin portions 16 and 17 are formed with a hinge mechanism to facilitate engagement between the screw and the pawl 20. The leg pieces 15, 16 are configured to easily move inward and outward.

FIG. 3 is a sectional view taken along line X--X shown in FIG. 2.

In this figure, the cross section of the frame 12 is omitted.

A penetrating hole 18 is formed in the center of the substrate 11, and a thin wall portion 16.17 with a hinge function extends to surround the hole 18. Leg pieces 14 and 15 are connected to each other from the distal end surface.

Claws 20 are formed at the upper ends of the leg pieces 14 and 15 facing the perforation hole 18, respectively.

The claw 20 is divided into upper and lower legs 14 and 15, respectively.

FIG. 4 shows the configuration of the claw 20, where a shows a cross-sectional view taken along the line A-A in FIG. 3, b shows the same<B-B line, and C shows the same<C-C line. A cross-sectional view of each is shown.

In a, claws 20 and 20' are installed on a part of the inner periphery of the leg pieces 14 and 15, and the widths of the claws 20 and 20' are respectively as follows, assuming that they are circumferential. Both are 4
It is about 1/2 the width.

The claws 20 and 20' face each other at an angle.

In the figure, the dotted line part of the pawl 20.20' indicates the depth of the pawl 20.20', and since the pawl is configured to be able to fit into the threaded part of the screw, as can be understood in FIG. It has an impressive shape of evenly spaced mountains.

b shows the shape of the claws 20 and 20' formed on line A-A in FIG. 3, that is, the claws 20 and 20' formed one step lower than a.

That is, in b, the formation position of the pawls 20 and 20' has moved by an angle of 90° compared to a, and compared to the pawl position shown in a, the pawls 20 and 20' are formed in open joints.

C is a shape further lower than b, and shows the unnecessary portions of the claws 20 and 20'.

The harness fixing device 10 having these configurations is made by integrally molding the entire harness from a plastic synthetic resin with elasticity.

In this case, the shape of the pawls 20 and 20', which is particularly problematic, can be easily achieved by using a slide core in mold processing because the configuration of the pawls is alternate, which is advantageous for mass production.

The case where the harness fixing device configured as described above is attached or the harness is fixed will be explained.

Since this harness fixing device 10 uses an existing bolt screw, it is better to use a threaded portion of the bolt as long as possible.

FIG. 5 shows, as an example, a state diagram of a bolt fixed on a plate.

The bolt 22 is fitted with a thin washer 23, inserted into the panel plate 26, 26', and a hole (not shown) penetrating the plate 27, and the nut 24 is screwed into the threaded portion 25 to attach the panel plate. It is fixed with bolts 22.

The harness fixing operation is performed at a location where one or more such existing bolts are attached depending on the usage state.

FIG. 6 is a perspective view of the fixing operation.

The harness fixing device 10 allows the perforation hole 18 to be inserted through the straightened screw portion 25.

Since the inner diameter of the drilled hole 18 is formed to be slightly larger than the outer diameter of the threaded portion 25, it passes through without resistance.

The tip of the threaded portion 25 that has passed comes into contact with one of the claws 20,
When pressed further, the pawl 20 engages with the threaded groove.

At this time, the thin wall portion 17 has a hinge action due to the diameter expansion action of the claw 20, and the leg piece 15 is inclined outward.

When the screw portion 25 is further pressed, the pawl 20 successively climbs over the screw grooves and reaches the lower pawl 20', and similarly engages the lower pawl 20' at a different angle.

The thin portion 16 also expands outward due to the hinge action due to the diameter expansion operation due to the pressing action of the threaded portion 25 of the pawl 20'.

However, since the thin-walled portions 16 and 17 have elasticity, they expand outward and simultaneously rebound and return inward.

In this way, the pawls 20, 20' engage the threaded portion 25 from above and below and from left and right.

This is the same regardless of which part of the threaded portion 25 the pawls 20, 20' are engaged with.

Due to the presence of the claws 20, 20' of the bolt 22, the harness fastener does not tilt.

The harness fastener 10 thus engaged inserts the harness 28 passing near the bolt 22 into the frame 12.

Since the tongue piece 13 formed inside the frame body 12 applies elastic pressure from the upper surface, it is immovably held within the frame body 12 regardless of its size.

The harness fixing device 10 is to be bonded to the panel surface 26, but in consideration of the case where it is bolted as shown in FIG. A portion 19 is formed.

As a result, the height of the pole I.24 is ensured, and the holding of the harness 28 can be stabilized.

As explained above, the present invention is a harness fixing device integrally formed of synthetic resin, which includes a base body having a hole in the plate surface, and a harness holding frame connected to one end of the base body. and a plurality of leg pieces protruding from the back surface of the board,
The perforation hole has a larger diameter than the screw inserted into the hole, and the legs on the back surface of the board are arranged along the periphery of the perforation hole and at relative intervals in the circumferential direction. The legs are characterized in that, on the inner surfaces thereof, claws for engaging the screw portion are formed in rows on a circumference smaller than the drilled hole.

In the case of the present invention, when pushing the screw part from the drilled hole into between the leg pieces, the leg pieces in the split state expand outward, thereby reducing the pushing resistance, and, After the threaded part is pushed in to a predetermined depth, the restoring force of the leg piece maintains the engagement between the claw and the threaded part.
In this state, if a force is applied to pull out the threaded part, each leg will contract inward, preventing the threaded part from coming off involuntarily, and furthermore, the legs will be pulled out from each other. By expanding the legs, the screws can be easily removed from the leg pieces.

Of course, with the present invention, the harness can be easily held without the need for conventional mounting holes.

[Brief explanation of drawings]

FIG. 1 shows a front view of the harness fixing device according to the present invention, and FIG. 2 shows a plan view. Figure 3 is a sectional view taken along the line X-X in Figure 2, and Figure 4 is a cross-sectional view taken along line X-X in Figure 3. A cross-sectional view is shown. FIG. 5 is a side view of the bolt fixed to the plate, and FIG. 6 is a perspective view showing the state in which it is attached. 10... Harness fixing tool, 11... Board, 12... Frame, 14.15... Leg piece, 16.17...・Thin wall part, 18...
Drilling hole, 20.20'...claw, 25...
Thread.

Claims (4)

[Scope of utility model registration request] (1) A harness fixing device integrally molded from synthetic resin, which includes a substrate having a hole in the plate surface, a frame for holding a harness connected to one end of the substrate, and a It consists of a plurality of leg pieces protruding from the back surface, the perforation hole has a larger diameter than the screw portion inserted therein, and each leg piece on the back surface of the substrate runs along the periphery of the perforation hole, Further, they are arranged at relative intervals in the circumferential direction, and claws for retaining the screw portion are formed on the inner surface of these leg pieces in a row on a circumference smaller than the drilled hole. Harness fastener. (2) The harness fixing device according to claim 1, wherein the plurality of leg pieces protrude from the back surface of the substrate through thin-walled portions formed on the proximal end sides of the leg pieces. (3) The harness fixing device according to claim 1, wherein the claws formed on the inner surfaces of the respective leg pieces are located at positions other than the tips of the leg pieces. (4) The harness fixing tool according to claim 1 or 3, wherein the claws formed on the inner surface of each leg piece are at different levels from each other.