JP2566299Y2 - Hole ring cover - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a hole ring cover which can be fitted in a hole formed in a spherical concave portion.

[0002]

2. Description of the Related Art Conventionally, as such a hole ring cover, for example, as disclosed in Japanese Utility Model Laid-Open Publication No. 1-67317, two cover components are provided, and one cover component is disposed on the front side of a hole. A hole ring cover in which the other cover component is disposed on the back side of the hole and assembled together, so that the front and back edges of the hole are sandwiched and covered by the flanges of the two cover components. Are known.

[0003]

However, the conventional hole ring cover described above has a problem that the number of parts is increased and the cost is increased because the cover is constituted by two cover members.

[0004] Therefore, it is conceivable that the hole ring cover is constituted by one member. In this case, flanges for sandwiching the front and rear edges of the hole are projected from both ends of the cover body. It becomes difficult to fit the hole ring cover.

When the hole into which the hole ring cover is fitted is formed in a spherical concave portion, the two flanges are inclined at a predetermined angle with respect to the ring axis of the cover main body along the front and rear edges of the hole. Since the flange protrudes at an angle, the flange is undercut, making it difficult to remove the hole ring cover after molding.

The present invention has been made in view of such a point, and an object of the present invention is to form a hole ring cover integrally with a flexible material and to form a portion for sandwiching a front edge and a rear edge of a hole. It is an object of the present invention to provide a hole ring cover which is easy to fit and inexpensive by improving the shape, has no looseness or falling off in a fitted state, and is easily detached after molding.

[0007]

In order to achieve the above object, the present invention is directed to a hole ring cover which can be fitted into a hole formed in a spherical concave portion, and has taken the following solutions.

[0008] That is, in the solution of the present invention, a flange is provided on one end side of a ring-shaped cover main body which comes into contact with the inner peripheral surface of the above-mentioned hole so as to be in contact with the entire periphery of the front side edge of the above-mentioned hole. Further, a plurality of first protruding pieces that come into contact with the back side edge of the hole are protruded from the other end of the cover main body at a predetermined interval. In addition, a plurality of second protruding pieces that are not in contact with the back side edge of the hole are longer than the first protruding pieces at predetermined intervals on the other end side of the cover main body and are aligned with the ring axis of the cover main body. Protrude vertically. In addition, the cover main body, the flange, each of the first and second protruding pieces are integrally formed of a flexible material.

[0009]

According to the present invention, since the cover main body, the flange, and the plurality of first and second projecting pieces constituting the hole ring cover are integrally formed in the present invention, a plurality of cover constituting members are formed. It is not necessary to assemble and configure, and accordingly the number of parts is reduced and the cost is not increased.

Further, since the hole ring cover is formed of a flexible material, the first and second projections are bent at the time of fitting so that the hole ring cover can be inserted into the hole. And the flange is located on the front edge of the hole,
The first protruding pieces are brought into contact with the back side edges of the hole, respectively, so that the fitting into the hole is easily performed.

Further, when the hole ring cover is fitted, the cover body is brought into contact with the inner peripheral surface of the hole, the flange is brought into contact with the entire periphery of the front side edge of the hole, and each of the first projections is formed with the hole. , The backlash in the fitted state is reliably prevented, and the second protruding pieces longer than the first protruding pieces are surely prevented from falling off.

Further, since each of the second projecting pieces is projected in a direction perpendicular to the ring axis of the cover body, each of the second projecting pieces is not undercut, and the hole ring cover is removed after molding. It will be easier.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 5, reference numeral 1 denotes a steering column which wraps a steering shaft of an automobile, and 3 denotes a key box mounted on the steering column 1 via a hole ring cover 5 according to an embodiment of the present invention. The box 3 has an insertion hole 7 into which an ignition key is inserted.

As shown in FIGS. 3 and 4, the steering column 1 is formed by integrally molding a hard foamed resin layer 13 between a resin skin material 9 and a resin base material 11. A spherical concave portion 15 is formed at a predetermined portion of the optical disk 1, and a circular hole 17 is formed in the spherical concave portion 15. The hole ring cover 5 is provided with the holes 17.
Are fitted.

As shown in FIGS. 1 to 4, the hole ring cover 5 includes a circular ring-shaped cover main body 19, and the outer peripheral surface of the cover main body 19 is fitted to the inner peripheral surface of the hole 17 in a fitted state. 17a.

A flange 21 is provided on the entire circumference of one end side (right end side in FIGS. 3 and 4) of the cover body 19, and the other end side (left end side in FIGS. 3 and 4).
, Three first projecting pieces 23, 23, 23 and three second projecting pieces 25, 25, 25 are alternately projected outward at predetermined intervals.

The flange 21 and each of the first projecting pieces 23 project from the ring axis C of the cover main body 19 at a predetermined inclination angle, and the flange 21 is engaged with the front edge 15a of the hole 17 in the fitted state. Each of the first projecting pieces 23 is brought into contact with the back edge 15 b of the hole 17 while being in contact with the entire circumference.

Each of the second projecting pieces 25 is connected to each of the first projecting pieces 23.
The hole 17 is longer than the cover body 19 and protrudes in a direction perpendicular to the ring axis C of the cover body 19, and is in a non-contact state with the back edge 15b of the hole 17 in the fitted state.

The cover body 19, the flange 21, the first projection 23 and the second projection 25 are integrally formed of a flexible material such as polyvinyl chloride, urethane elastomer and rubber. I have. That is, the hole ring cover 5 is an integral body made of a flexible material.

As described above, in this embodiment, since the hole ring cover 5 is integrated, it is not necessary to assemble a plurality of cover components, so that the number of parts can be reduced and the cost can be reduced. Can be achieved.

In the above embodiment, since the hole ring cover 5 is formed of a flexible material, the hole ring cover 5 is formed by bending each of the first projection 23 and the second projection 25. It can be easily inserted into the hole 17 and the flange 21
To the front side edge 15a of the hole 17 and the first protruding pieces 23 to the hole 17
The hole ring cover 5 can be easily fitted into the hole 17 by bringing the hole ring cover 5 into contact with the back side edge portion 15b.

Further, in the above embodiment, when the hole ring cover 5 is fitted, the cover main body 19 is brought into contact with the inner peripheral surface 17a of the hole 17, and the flange 21 is brought into contact with the entire periphery of the front side edge 15a of the hole 17. In addition, since each of the first projecting pieces 23 is in contact with the back side edge 15b of the hole 17, rattling in the fitted state can be reliably prevented, and the first projecting pieces 23 can be more securely mounted than the first projecting pieces 23. The long second protruding pieces 25 can reliably prevent falling off.

Further, in the above embodiment, since each second projecting piece 25 is projected in the direction perpendicular to the ring axis C of the cover body 19, each second projecting piece 25 is not undercut. The mold release of the hole ring cover 5 after molding can be easily performed. That is, since the flange 21 and each of the first protrusions 23 are relatively short even if they are inclined with respect to the ring axis C, they can be released by bending at the time of release. Because it is relatively long, when it is inclined with respect to the ring axis C as in each of the first projecting pieces 23, the resistance increases and it is difficult to remove the mold.

[0025]

[Effects of the Invention] As described above, according to the present invention,
At one end of the ring-shaped cover body which comes into contact with the inner peripheral surface of the hole formed in the spherical recess, a flange is provided so as to be in contact with the entire periphery of the front side edge of the hole, and comes into contact with the back side edge of the hole. A plurality of first protruding pieces project from the other end of the cover main body at a predetermined interval, and a plurality of second protruding pieces which are not in contact with the back side edge of the hole are connected to the other end of the cover main body. At a predetermined interval on the side, it is longer than each of the first protruding pieces and protrudes in a direction perpendicular to the ring axis of the cover main body. Further, the cover main body, the flange, each of the first protruding pieces, and the second protruding piece are formed. It was integrally molded with a flexible material. Therefore, it is not necessary to form the cover with a plurality of cover components, and the number of components can be reduced by that much, and the cost can be reduced.
Further, by bending each of the first and second projections at the time of fitting, the mounting of the hole ring cover can be easily performed. Furthermore, in the fitted state, the cover body is brought into contact with the inner peripheral surface of the hole, the flange is brought into contact with the front side edge of the hole, and each of the first projections is brought into contact with the back side edge of the hole, thereby reliably preventing backlash. And the second protruding pieces that are longer than the first protruding pieces can reliably prevent the second protruding pieces from falling off. Also,
Avoid undercut by the projecting angle of each second projecting piece,
The mold release of the hole ring cover after molding can be easily performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hole ring cover.

FIG. 2 is a front view showing the hole ring cover fitted to a steering column.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a perspective view showing a state where the key box is mounted on a steering column via a hole ring cover.

[Explanation of symbols]

 5 Hole ring cover 15 Spherical recess 15a Front side edge 15b Back side edge 17 Hole 17a Inner peripheral surface 19 Cover body 21 Flange 23 First protruding piece 25 Second protruding piece C ring axis

Claims (1)

(57) [Scope of request for utility model registration] 1. A hole ring cover fitted in a hole formed in a spherical concave portion, a ring-shaped cover body contacting an inner peripheral surface of the hole, and protrudingly provided at one end side of the cover body. A flange that contacts the entire periphery of the front side edge of the hole, a plurality of first protrusions projecting from the other end of the cover body at a predetermined interval, and contacts the back side edge of the hole; A plurality of protrusions are provided at the other end of the cover body at a predetermined interval, longer than the first protruding pieces and projecting perpendicular to the ring axis of the cover body, so as to be in a non-contact state with the back edge of the hole. A hole ring cover comprising a second protruding piece, wherein the cover main body, the flange, each of the first protruding piece and the second protruding piece are integrally formed of a flexible material.