JPH0614333Y2 - Grommet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a wiring grommet for sealing a gap between a hole inserted in a panel of a vehicle or the like and a hole.

[Conventional technology and problems]

A conventional grommet technique for sealing a gap between a cable inserted into a hole of a panel of a vehicle or the like and preventing the cable from being damaged is, for example, Japanese Utility Model Laid-Open No. 59-1.
There is a technique described in Japanese Patent No. 55783.

That is, in FIG. 4, the soft grommet main body A has a cylindrical tube 2 provided around the circumference of a hollow disk-shaped base 1, and the circular portion of the tube 2 penetrates the panel P and is supported by the grommet. The cable 3 is inserted.

Then, in order to fix the cable 3 to the tube 2 and ensure a seal between the two, a tape 4 is wound around both.

A cylindrical peripheral wall 5 is continuously provided on the outer peripheral edge of the base portion 4 in the direction opposite to the tube 2, and an annular support portion 6 is provided at an end of the peripheral wall 5 so as to project inwardly. Fitting recess 7
The outer lips of the support portion are provided with annular lips 8 and 9 that come into contact with the panel P.

On the other hand, in the hard resin lock member B having the hollow disk-shaped substrate 10 fitted in the fitting recess 7, the cylindrical peripheral wall 11 is connected to the side surface of the substrate 10, and the end portion of the peripheral wall 11 is bent to the center. As a result, a hollow disk-shaped bottom wall 12 is formed.

Then, locking pieces 13 are provided at a plurality of locations on the peripheral wall 11 so as to be cut and raised outward and are fitted into the cable insertion holes of the panel P.
Is provided.

The locking piece 13 fits into the cable insertion hole of the panel P and supports the grommet main body A engaged with the resin lock member B,
The lips 8 and 9 of the grommet body A are in close contact with the panel P to seal the panel P.

As described above, the gap between the panel P and the cable 3 is sealed so that rainwater or the like does not enter, and the cable 3 is supported by the tube 2 without being damaged, as shown in FIG. When an external force F is applied to the cable 3, the cable 3 is displaced in the direction of the external force F, the base 1 and the peripheral wall 5 are pulled in the same direction and are displaced with deformation, and the lips 8 and 9 are lifted from the panel P. Panel P going up
However, there is a problem in that the substrate 10 of the resin lock member B is disengaged from the fitting recess 7 when it is further pulled.

The present invention has been made in view of such a problem. Even if an external force F is applied to the cable 2, the grommet body A does not come off from the resin lock member B, and the lip 8
And grommet maintaining the sealing ability of 9 and 9.

[Means for solving problems]

The present invention provides a soft grommet in which a tube for inserting an electric wire is projected on the inner peripheral edge of a hollow disk-shaped base portion, and a peripheral wall is formed continuously on the outer peripheral edge to form a fitting concave portion inside, and a soft grommet fitted in the fitting concave portion. A grommet comprising a hard resin lock member having a base plate and a locking piece that is locked in a hole of a panel or the like to prevent movement in the tube direction. It is characterized in that an exposed strip-shaped wire fixing piece extending in the opposite direction is provided.

[Action]

With the above configuration, the electric wire inserted into the tube and fixed to the grommet body by tape winding is also wound by tape around the strip-shaped electric wire fixing piece provided on the resin lock member fitted to the grommet body. The grommet is fixed, and the grommet is locked in an electric wire insertion hole such as a panel.

Therefore, even if a tensile force is applied to the wire, the wire is prevented from being displaced in the pulling direction by the hard resin lock member that is locked to the panel, so the grommet body is pulled by the wire and floats above the resin lock member. There is no going up or off.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

The same parts as those in the conventional example are designated by the same reference numerals.

2 and 3, a hard resin lock member C
In the same manner as in the conventional example, the peripheral wall 11 is connected to the side surface of the hollow disk-shaped substrate 10, the end 12 of the peripheral wall is bent to the center, and the central disk-shaped bottom wall 12 is formed. The locking pieces 13 are provided outwardly at a plurality of locations, but in the present invention, one or a plurality of flat plate-shaped wire fixing pieces 14 are further provided on the inner peripheral edge of the peripheral wall 11 of the soft grommet body A. Tube 2
And is extended in the exposed state in the opposite direction.

The strip-shaped wire fixing piece 14 becomes thinner toward the free end side, and a projection 14a is provided at the tip.

In other respects, it is similar to the conventional grommet.

To seal the cable 3 to the panel P by the grommet configured as described above, the cable 3 is inserted into the tube 2 of the grommet body A and the tube 2 and the cable 3 are attached to the tape 4 as shown in FIG. Wrap around.

Next, the substrate 10 of the resin lock member C is fitted into the annular recess 7 of the grommet body A, and the strip-shaped wire fixing piece 14 and the cable 3 are wound with the tape 15.

At this time, the protrusion 14a prevents the tape 15 wound around and fixed to the strip-shaped wire fixing piece 14 from being displaced from the wire fixing portion 14 due to the positional deviation.

Thus, when the locking piece 13 of the lock member C fitted to the grommet body A and fixed to the cable 3 is fitted in the hole of the panel P, the grommet is locked to the panel P by the elastic force of the locking piece 13. Then, the lips 8 and 9 are in close contact with the panel P to seal them.

As described above, when an external force acts on the cable 3 sealed by the grommet and supported in the hole of the panel P in the direction F from the outside, the cable 3 is attached to the grommet main body via the tapes 4 and 15 that are fixed. Although A and the resin lock member C are pulled in the F direction, the hard resin lock member C locked to the panel P prevents the cable 3 from being displaced in the F direction.

Therefore, only the grommet body A is prevented from being pulled by the cable 3 and displaced, and the lips 8 and 9 are attached to the panel P.
There is no risk that the grommet body A will be separated from the resin lock member C by maintaining the sealed state in close contact with the.

〔effect〕

As described above, the present invention provides a soft grommet in which a tube for inserting an electric wire is projected on the inner peripheral edge of a hollow disk-shaped base and a peripheral wall is formed continuously on the outer peripheral edge to form a fitting recess on the inner periphery, and the above-mentioned fitting. A grommet comprising a hard resin lock member having a substrate fitted in the fitting recess and having a locking piece locked in a hole of a panel or the like to prevent movement in the tube direction. Since it is an exposed one that extends in the opposite direction to the tube, regardless of the diameter of the cable, a strip-shaped wire fixing piece can be placed along it and co-wound with a tape to facilitate both. It is possible to fix it, and even if the cable is pulled by an external force, the soft grommet will not be deformed unnecessarily, and the grommet's sealing ability due to the external force, which has been a problem in the past, is low. And it you of the decomposition of the grommet is effective to be completely eliminated.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional perspective view of an essential part of a grommet assembled to a panel to seal a cable, and FIG. 2 is a sectional perspective view of an essential part of a resin locking member. Fig. 3 is a front view of relevant parts of the same, Fig. 4 is a vertical sectional view of a conventional grommet, and Fig. 5 is a vertical sectional view of the same when an external force acts on the cable. A: grommet body, B, C: resin lock member,
1 ... Base, 2 ... Tube, 3 ... Cable, 4, 1
5 ... tape, 5 ... peripheral wall, 6 ... supporting part, 7 ... fitting recess, 8,9 ... lip, 10 ... substrate, 11 ... peripheral wall, 12 ... bottom wall, 13 ... Stopper, 14 ...... Band-shaped wire fixing piece.

Claims (1)

[Scope of utility model registration request] 1. A soft grommet in which a tube for inserting an electric wire is projectingly provided on an inner peripheral edge of a hollow disk-shaped base portion, and a peripheral wall is formed continuously on an outer peripheral edge thereof to form a fitting recessed portion, and a soft grommet in the fitting recessed portion. A grommet comprising a hard resin lock member having a board to be fitted and having a locking piece that is locked in a hole of a panel or the like to prevent movement in the tube direction. A grommet which is provided with a strip-shaped wire fixing piece for extending the opposite direction to wind the exposed tape so that the tension of the wire is not exerted on the soft grommet.