JPH0499397A - Cord bush - Google Patents

Abstract

PURPOSE:To provide an opening adapted for the shape of a wiring material by providing an outer frame, and a thin part partitioned into a plurality of sections by grooves inside the frame, and cutting predetermined grooves. CONSTITUTION:A cord bush 20 is entirely formed by molding a rubber material such as neoprene, etc., a groove 24 is formed on the periphery of an outer frame 22, and a thin part 26 is provided inside the frame 22. The part 26 is divided into positions 26a-26j by V-cut grooves 28a-28g. The bush 20 is engaged at the position of the periphery of the opening of a housing 30 with the groove 24 to be secured. The grooves 28b, 28d, 28g to be engaged with the positions 26b, 26c of the part 26 are partly cut at the part 26, and a wiring material 34 is inserted to an insertion hole formed here. Since the hole is adapted for the shape (size) of the material 34, invasion of dusts, water droplet can be effectively prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cord bushing used for wiring a cord in a notification device or the like of a security system in an apartment complex.

2. Description of the Related Art Conventionally, as shown in FIG. 3, this type of cord bushing has been made entirely of a rubber material such as neoprene by molding, etc., and has a concave groove around the outer frame 2. 4, and has a thin wall portion 6 inside the outer frame portion 2.

This cord bushing 8 is attached to the housing 1 as shown in FIG.
The concave groove portion 4 is fitted into and fixed to the area around the opening of the opening. Then, a cut 12 shown in FIG. 3 is made in the thin portion 6, and a wiring material (cord) 14 is inserted through the cut 12.

Alternatively, the thin portion 6 is cut out and the wiring material 14 is inserted.

In this way, the wiring material 14 is inserted through the device via the cord bush 8 and wired.

Problems to be Solved by the Invention However, the above-mentioned conventional cord bushing 8 is not suitable for the wiring material 1.
When inserting the wiring material 1, in particular, cut out the thin part 6 and insert the wiring material 1.
4, a space is created around the wiring material 14, which has drawbacks such as the intrusion of dust and water droplets and the loss of aesthetic appearance.

The present invention solves these conventional problems, and has an excellent structure that has a simple structure, allows easy formation of an insertion hole that matches the size of the wiring material, and effectively prevents the intrusion of dust and water droplets. The purpose is to provide a code bush.

Means for Solving the Problems In order to achieve the above object, the present invention provides an outer frame portion and a plurality of thin wall portions partitioned by grooves inside the outer frame portion.

Operation The present invention has the following effects due to the above-described configuration. That is, by cutting a predetermined groove, an opening that matches the shape of the wiring material can be easily provided.
Furthermore, since the insertion hole is more compatible with the shape of the wiring material, there is an advantage that the intrusion of dust and water droplets can be effectively prevented.

Embodiment FIGS. 1 and 2 show a cord bushing in an embodiment of the present invention.

In FIG. 1, the cord bushing 20 is made entirely of a rubber material such as neoprene by molding, etc., and a concave groove 24 is provided around the outer frame 22. It has a thin part 26 on the inside of 22.

The thin parts 26 are parts 26a, 26b, 26c, 26d, 2
V-cut grooves 28a, 28b, 28c are provided at 6e, 26f, 26g, 26h, 26i, and 26j, respectively.

It is divided into 28d, 28e, 28f, and 28g.

As shown in FIG. 2, this cord bushing 20 is fixed by fitting a recessed groove 24 into the area around the opening of the housing 30. Then, V-cut grooves 28 corresponding to parts 26b and 26c of the thin wall portion 26 shown by diagonal lines in FIG.
Parts b, 28d, and 28g are cut, and the wiring material 34 is inserted into the insertion holes formed here.

Note that the insertion hole may be formed by cutting out the portions 26b and 26c of the thin portion 26.

In this way, the cord bushing 20 is attached to the housing 30 of the device.
is fixed, and then the shape of the wiring material (34) to be inserted (
V-cut grooves (28a, 28b, 28c, 28d,
28e.

28f, 28g), an insertion hole of a desired size can be easily formed. Furthermore, since the insertion hole is more compatible with the shape (size) of the wiring material (34), the intrusion of dust and water droplets can be effectively prevented.

Effects of the Invention As is clear from the above embodiments, the present invention has the following advantages. In other words, an opening that matches the shape of the wiring material can be easily created by simply cutting a predetermined groove, and since the insertion hole better matches the shape of the wiring material, the intrusion of dust and water droplets is effectively prevented. There are advantages that can be achieved.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the configuration of a cord bushing in an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a state in which the cord bushing in FIG. 1 is fixed to a housing and a wiring material is inserted. 3 is a plan view showing the structure of a conventional cord bushing, and FIG. 4 is a sectional view showing the cord bushing in FIG. 3 fixed to a housing and a wiring member inserted therethrough. 20...Code bush, 22...Outer frame, 24...
- Concave groove part, 26... Thin wall part, 26a, 26b, 26c,
26d, 26e, 26f, 26g, 26h, 26i,
26 j one part, 28a, 28b. 28c, 28d, 28e, 28f, 28g=V-cut groove, 30... Housing, 34... Wiring material. end in Φ

Claims (1)

[Claims] The device comprises an outer frame portion and a thin wall portion in which a plurality of portions partitioned by grooves are provided inside the outer frame portion, and a predetermined groove is cut and an opening that matches the shape of the wiring material to be inserted is formed. A cord bush characterized by being provided.