JPS6131271Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wire bundle locking unit for gathering and fixing a bundle of wires to a housing when a large number of wires are drawn into a housing such as a relay box.

For example, as shown in Figure 1, relay box 1
When a large number of electric wires 2 are to be drawn into a cable, a strip-shaped locking band 3 made of synthetic resin may be used to bundle and fix these electric wires 2. However, the conventionally used locking mechanism, as shown in FIG. Push it into the locking part 7 consisting of the piece 6,
The locking is achieved by the cooperation of the claw portion 4 of the locking band 3 and the locking piece 5. However, when a force is applied to the electric wire 2 and a pulling force is applied to the locking band 3 in the direction of the arrow, both the claw portion 4 and the locking piece 5 of the locking band 3 are deformed, and the locking band 3 comes off. There are some easy problems.

The purpose of the present invention is to improve the above-mentioned conventional mechanism and provide a wire bundle locking part that can be locked with a single touch and does not easily come off once locked. A thin and thin locking band made of elastic synthetic resin, a pair of elastic claw members provided on a housing such as a relay box made of synthetic resin, and a pair of claw members that are held together and held against each other. and a guide/holding frame having a U-shaped cross section facing each other, and tongue-shaped insertion portions at both ends of the locking band each have a fitting hole that engages with the claw member,
The claw member has a hook portion that locks the fitting hole following the sloped portion at the tip, and the guide and holding frame has a hook portion that engages the fitting hole of the locking band and the hook portion of the claw member. It is characterized in that both sides of the insertion portion of the locking band are placed in a position where they are fitted and held in this state.

The present invention will be explained in detail based on the embodiments shown in FIG. 3 and below.

FIG. 3 is a perspective view of the locking band 10 used in the locking section according to the present invention. The locking band 10 is made of a thin elastic strip made of synthetic resin, and both ends thereof serve as insertion portions 11a and 11b for locking to the housing. Insertion part 11
The ends 12a and 12b of a and 11b are tongue-shaped so that they can be easily inserted into the locking part of the housing.
Rectangular fitting holes 13a and 13b are bored approximately in the center of the insertion portions 11a and 11b, respectively.
In this embodiment, this locking band 10
Although the shape of the shape is curved in advance, by using a flexible material, a straight shape can be curved during use.

On the other hand, as shown in FIG. 4, the housing 14 has a locking portion 15 for locking the locking band 10.
a, 15b are provided. Locking part 15a, 1
5b each has a shape in which the central part of the opposite side of the square frame is cut out, that is, a pair of opposing U-shaped guide/holding frames 16, and the insertion part 11 of the locking band 10
a and 11b can be inserted as shown by phantom lines. Claw members 18a, 18b supported by elastic support rods 17a, 17b are disposed within the guide/holding frame 16, and the inlet sides of these claw members 18a, 18b are sloped portions 19 facing outward.
a, 19b, and the lower side thereof has a hook portion 2 that fits into the fitting hole 13a, 13b of the locking band 10, respectively.
0a, 20b.

Since the locking portion according to the present invention has the above-described configuration, when the insertion portion 11a of the locking band 10 is inserted according to the guide/holding frame 16 of the housing 14, the tip of the insertion portion 11a first aligns with the claw member 18a. The slanted surface 19a comes into contact with the slanted surface 19a. If the insertion part 11a is further pushed in strongly, the support rod 17a supporting the claw member 18a will bend back as shown in FIG. It enters the matching hole 13a and the support rod 17
a is restored to its original position. Once the claw members 18a, 18b are fitted into the fitting holes 13a, 13b in this way, the hook portions 20a, 20 of the claw members 18a, 18b
b engages with the edges of the fitting holes 13a and 13b, and even if a pulling force is applied to the locking band 10, the locking band 1
Since the insertion portions 11a and 11b of 0 are secured so as not to move by the guide/holding frame 16, they do not come off easily. To forcefully release the lever, use the tip of a screwdriver or the like to pull the claw member 18a,
There is no other choice but to move 18b backwards and remove it.

As explained above, the wire bundle locking part according to the present invention can extremely easily lock the wire bundle to the housing, and once the wire bundle is locked, it is almost impossible for it to come off due to unexpected external force. , it is possible to securely hold the wire bundle.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing how a wire bundle is tied to a relay box using a locking band, Figure 2 is a sectional view of a conventional locking part, and Figures 3 and below are diagrams showing how to connect a wire bundle to a relay box according to the present invention. This shows one embodiment of the stop part, and the third
The figure is a perspective view of the locking band, FIG.
FIG. 5 is a sectional view showing a state in which the locking band is inserted, and FIG. 6 is a sectional view showing a state in which the locking band is locked. 10 is a locking band, 11a, 11b are insertion parts, 13a, 13b are fitting holes, 14 is a housing, 15a, 15b are locking parts, 16 is a guide/holding frame, 17a, 17b are supporting rods, 18a, 18b is a claw member, 19a, 19b are slope parts, 20a, 20b
is the hook part.

Claims (1)

[Scope of utility model registration request] A thin and thin locking band made of elastic synthetic resin, a pair of elastic claw members provided on a housing such as a relay box made of synthetic resin, and a pair of claw members that are held together and held against each other. The tongue-shaped insertion portions at both ends of the locking band each have a fitting hole that engages with the claw member, and the claw member is formed at the tip of the locking band. a hook portion that locks the fitting hole following the slope portion;
The guide and holding frame is disposed at a position where both sides of the insertion portion of the locking band are fitted and held in a state where the fitting hole of the locking band and the hook portion of the claw member are engaged. Characteristic electric wire anchoring part.