JPH04111224U - grommet - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention relates to the structure of a grommet used when inserting electric wires, etc. into panels of automobiles, etc., which allows the grommet to be easily locked into the panel hole, and which allows the electric wire to be inserted after locking. The purpose of the present invention is to provide a grommet with a structure that prevents positional displacement. [Structure] Grommet A is formed by connecting a funnel-shaped base 1 made of a thick peripheral wall of rubber with a filament body convergence part 2 made of a narrow cylindrical part, and the outside of the thick peripheral wall of the base 1. A groove 4 is provided along the outer periphery of the peripheral edge 3, and constitutes a means for locking into a panel hole (not shown). A flange-shaped abutting plate 7 is formed at one end of a cylindrical inner member 6 made of synthetic resin, and a fan-shaped notch is provided in a part of the abutting plate 7, and the inner member 6 is also continuous with the notch. The inner 8 provided with a slit penetrates into the hollow part 5 of the filament convergence part 2.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

Regarding the structure of grommets used when inserting electric wires etc. into panels of automobiles etc. Ru.

0002

[Conventional technology]

FIG. 7 is a cutaway vertical cross-sectional view of a conventional grommet, and FIG. 8 is a side view of another conventional example. It is. In Fig. 7, a grommet a extends from a narrow cylindrical portion to a base b made of a thick peripheral wall of rubber. The filament body convergence part c is formed in a row, and the outer periphery of the thick peripheral wall of the base part b. A groove e is provided along the outer periphery of the edge d to provide a means for locking into a panel hole (not shown). It consists of

0003 During use, insert an electric wire, etc., into the hollow part f of the striatal body convergence part c, and After taping the part shown, insert it into the panel hole and pull the groove e in the direction h. to be locked. Since it is configured as above, when locking the grommet to the panel hole, , the striatal convergence part c, which is made up of the narrow cylindrical part of the grommet itself, stretches and the amount of tension increases. This makes the work difficult, especially when there is little space on the pulling side. In addition, striatal contraction Since the bundle part c is composed of a thin and narrow cylindrical part, it has a large elongation.

0004 In the conventional example shown in FIG. A linear body convergence part c' consisting of a cylindrical part is formed in a continuous manner, and the thickness of the base part b' is A groove e' is provided along the outer periphery of the outer peripheral edge d' of the peripheral wall, and a panel hole (not shown) is provided along the outer periphery. ). In particular, the striatal body convergence part c' consisting of a narrow cylindrical part is bellows. It is formed in a j shape.

[0005] During use, insert an electric wire etc. g' into the hollow part f' of the striatal body convergence part c', and After taping the part indicated by the chain line, insert it into the panel hole and pull it in the direction of h' by pulling it into the groove e'. into the panel hole. Since it is configured as above, when locking the grommet to the panel hole, , the bellows j part of the striatal body convergence part c', which is the narrow cylindrical part of the grommet itself, is extended. As a result, the amount of tension increases, causing an error in the position of the electric wire g' in the extending direction. but, Conversely, this bellows j portion also absorbs positional errors in the extension direction after installation. but , Because of the bellows j, the extension is larger and it is difficult to lock into the panel hole. I don't know.

[0006]

[Problem that the idea aims to solve]

This invention focuses on the points mentioned above, and makes it easy to lock the grommet into the panel hole. To provide a grommet with a structure that allows the electric wire to be fixed and does not shift in position after locking. With the goal.

[0007]

[Means to solve the problem]

In order to achieve the above object, the present invention has a narrow cylindrical portion at the base consisting of a thick peripheral wall. In a grommet formed by consecutively connecting striatal convergence parts, one end has a An inner member having an integrally erected abutment plate is installed in the striatal body convergence part, and , the corresponding contact plate is fitted into the thick peripheral wall.

[0008]

【Example】

FIG. 1 is a cutaway longitudinal sectional view of an embodiment of the present invention. An inner 8 freely passes through the striae convergence portion 2 of the grommet A. An electric wire 10 is inserted through. Grommet A consists of a funnel-shaped base 1 made of a thick rubber peripheral wall and a narrow cylindrical part. The striatal body converging portions 2 are formed in a continuous manner, and the outer peripheral edge of the thick peripheral wall of the base portion 1 is formed in a continuous manner. 3 is provided with a groove 4 along its outer periphery, which constitutes a means for locking into a panel hole (not shown). are doing. The inner 8 made of synthetic resin has a flap at one end of the cylindrical inner member 6. A flange-like contact plate 7 is formed, and a fan-shaped cut is made in a part of the flange-like contact plate 7. A cutout 7' is provided, and the cylindrical inner member 6 is also provided with a slit 6 continuous to the cutout 7'. ', which penetrates into the hollow part 5 of the striatal body convergence part 2 (see FIG. 2). inner 8 The length m' of the cylindrical inner member 6 is slightly longer than the length m of the filament body convergence part 2. The hollow part 9 of the cylindrical inner member 6 constitutes a housing space for the electric wire 10. ing.

[0009] During use, first expand the grommet A and insert the electric wire 10 into the striatal body convergence part 2. I'll let you. Next, the inner 8 is attached to the base 1 side of the grommet A and the flange-shaped contact plate 7 is attached. the slit 6' and the flap of the cylindrical inner member 6. After the electric wire 10 is accommodated in the hollow part 9 through the notch 7' of the cylindrical abutting plate 7, the cylindrical inner Wrap the two-dot chain line portion 11 from the end of the inner member 6 to the electric wire 10 with tape, and Position the met in the place where it will be placed (see Figure 2). Next, the inner 8 cylindrical inner - Move the filament body convergence part 2 of the grommet A to the left and fit it into the member 6. Even more waterproof Therefore, wrap tape 15 around the end of the striatal body convergence part 2 of grommet A, and close the grommet. Position the outer peripheral edge 3 of the kit A in front of the hole in the panel. Next, it comes out from the panel hole. Grab the tape-wrapped portion 11 and pull it in the direction away from the panel hole. child At this time, it is removed from the thick wall of the grommet A via the flange-like contact plate 7 of the inner 8. The funnel-shaped base 1 is pulled and the groove 4 engages the panel hole. Therefore, thin-walled rubber The striatal body convergence part 2, which is made of a No deviation occurs. FIG. 3 shows the cylindrical inner member of the inner 8 in the first embodiment. The slit 6' of 6 and the notch 7' of the flange-like abutment plate 7 are greatly enlarged, and the plate-like body 6'' This is another embodiment employing a structure in which an abutment plate 7'' is provided upright at one end.

0010 The other configuration and usage are the same as in the first embodiment, so explanations are omitted. do. In FIG. 4, the end edge of the inner 8 facing the flange-shaped contact plate 7 is shaped like a short flange. This is another embodiment in which a handle 12 is provided in order to lock the grommet A' to the panel hole. It is easy to work when pulling after wrapping with tape.

[0011] In FIG. 5, a jig 13 is used and one end of the jig 13 is attached to the handle 12 of the inner 8. hook the other end onto the panel 14 and pull the grommet A'. It is a figure which locks '. According to this example, it is easy to use even in narrow places without pulling space. You can simply install the grommet. FIG. 6 shows a locking protrusion 1' to which the end edge 7' of the flange-like abutting plate 7 of the inner 8 is connected. When the edge 7' of the flange-like contact plate 7 inside the base 1 of the grommet A is fitted, This is another embodiment in which they are integrally formed at the abutting position.

0012 During use, after inserting the electric wire 10 into the cylindrical inner member 6 of the inner 8, When inserting and fitting the cylindrical inner member 6 into the filament body convergence part 2 of the grommet A, For more secure fitting and tape wrapping, position inner 8 and base 1 of grommet A. This has the advantage of not causing misalignment. Other operations are the same as in the first embodiment and will be explained below. is omitted.

[0013] When pulling the grommet to lock it in the panel hole, be sure to grasp the wire and pull it. You can also stretch it.

[0014]

[Effect of the idea]

Since the present invention is constructed as described above, the grommet is secured to the hole in the panel. Therefore, even if you pull the wire or the tape-wrapped part, the convergent part of the striatum will not stretch. The feature is that it is easy to work in narrow spaces and there is no misalignment of the wires.

[Brief explanation of drawings]

FIG. 1 is a cutaway longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a perspective view of an innerwear according to an embodiment of the present invention.

FIG. 3 is a perspective view of an innerwear according to another embodiment of the present invention.

FIG. 4 is a side view of another embodiment of the present invention.

FIG. 5 is a side view of a grommet being locked into a panel hole using another embodiment of the jig according to the present invention;

FIG. 6 is a cutaway longitudinal sectional view of another embodiment of the present invention.

FIG. 7 is a cutaway vertical cross-sectional view of a conventional example.

FIG. 8 is a side view of another conventional example.

[Explanation of symbols]

A Grommet 1 base 2 Striatum convergence area 3 Outer periphery 4 Groove 5,9 Hollow part 6 Cylindrical inner member 7 Contact plate 8 Inner 10 Electric wire

Claims (1)

[Scope of utility model registration request] Claim 1: In a grommet formed by connecting a filament body convergence part made of a narrow cylindrical part to a base part made of a thick peripheral wall, an inner part having an abutment plate integrally erected at one end thereof. A grommet characterized in that a member is housed in the filament body convergence portion, and a corresponding contact plate is fitted to the thick peripheral wall.