JP2938196B2 - Vehicle assist grip and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assist grip for a vehicle, that is, a grip attached to an upper wall of a side window in a vehicle cabin and a method of manufacturing the same.

[0002]

2. Description of the Related Art FIG. 4 is a perspective view showing an example of a conventional assist grip, and FIG. 5 is a sectional view of the assist grip shown in FIG.

The assist grip shown in FIG. 1 is manufactured by the following steps. (A) First, the grip body 1 having a substantially rectangular cross section and having a through hole 6 in the longitudinal direction made of rubber or the like is formed. (B) Next, if necessary, a cushion member 3 made of neoprene rubber or the like is wound around the grip body 1 and its inner surface is fixed to the outer peripheral surface of the grip body 1 with an adhesive. (C) If necessary, a leather or cloth-like grip skin member 4 is wound around the cushion member 3 and the inner surface thereof is fixed to the outer peripheral surface of the cushion member 3 with an adhesive. (D) Then, a steel plate 2 having a predetermined shape is fitted into the through hole 6 of the grip body 1 to obtain an assist grip. At the time of the fitting, the grip body, the cushion member, and the like are deformed according to the shape of the spring steel plate 2 (FIGS. 4 and 5).

The assist grip thus obtained is provided with mounting members (not shown) at both ends, and is screwed through a hole 5 provided at an end of the steel plate 2 above a side window in the vehicle cabin. And so on.

[0005] The assist grip having such a structure is gripped mainly at the time of cornering of a vehicle, and is particularly useful when driving on a meandering road or a snowy road.

[0006]

In the conventional assist grip having such a structure, when the steel plate 2 is fitted into the grip body 1, it takes time to perform the fitting operation due to the frictional force between the through hole 6 and the steel plate 2. There was such a problem.

Further, if the steel plate 2 is forcibly inserted into the grip body 1, there is a problem that the grip body 1 is damaged in the worst case.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to enable a grip core member to be easily fitted into a grip body.
It is an object of the present invention to provide a vehicle assist grip having an improved production performance rate and a method for manufacturing the same.

[0009]

In order to solve the above-mentioned problems, an assist grip according to the present invention is a vehicle assist grip constituted by fitting a flexible grip core member into a grip body made of a flexible molding material. Wherein a lubricity-imparting member is disposed between the grip body and the grip core member from a thin film of a polymer material.

The method of manufacturing an assist grip according to the present invention includes the steps of: (a) manufacturing the assist grip for a vehicle constituted by inserting a grip core member into a grip body made of a flexible molding material; A core pin member whose periphery is covered with a lubricating member made of a polymer material thin film is arranged at a predetermined position in a mold cavity defining an outer shape. (B) Then, in this cavity,
Filling a flexible molding material forming the grip body,
After curing, the core pin member is removed from the grip body, (c) the obtained grip body is released, and thereafter, a predetermined shape is formed in the through hole of the grip body formed by the core pin member. The flexible grip core member is fitted.

[0011]

In the assist grip of the present invention, since the lubricating member made of a polymer thin film is disposed between the grip body and the grip core member, it is easy to fit the grip core member. The body is less likely to be damaged, and the productivity of the assist grip can be improved.

When the assist grip is manufactured, the core pin member can be easily removed by the lubricating member.

[0013]

Next, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing a forming process of the assist grip of the present invention.

The grip forming die 50 shown in FIG. 1 includes split dies 52a and 52b for defining the outer shape of the grip portion 10, a hot runner die 54 for injecting a molding material into the split dies 52a and 52b, and The grip 10 includes a core pin 56 for forming a through-hole in the grip 10 and a cap member 58 for fixing the grip skin member 40.

The split dies 52a and 52b are configured so that they can be moved vertically in FIG. 1 by driving means (not shown). In addition, the split molds 52a, 52
At the bottom of 2b, a concave portion 52c for accommodating the tip portion 56a of the core pin is formed.

The hot runner mold 54 is configured to be movable in the horizontal direction in FIG. 1 by driving means (not shown), and is arranged so as to close the open ends of the split dies 52a and 52b during molding. The hot runner mold 54 is provided with molding material supply paths 54a and 54b for supplying molding material into the split molds 52a and 52b, and has an end portion for fixing and supporting the core pin 56. A recess 54c is formed.

Next, a process for forming the grip portion 10 using the grip forming die 50 will be specifically described. (a) First, the tubular grip skin member 40 is sewn in advance by a sewing machine or the like. This grip skin member 40 is
It is composed of leather materials such as natural leather, artificial leather, and synthetic leather, or cloth-like materials. (b) Next, the grip skin member 40 is arranged at a predetermined position in the grip mold 50 with the seam allowance being put inside.

That is, first, the hot runner mold 54 is retracted, and a core pin 56 surrounded by a polyvinyl chloride thin film, which is an example of a lubricity imparting member, is fixed to the hot runner mold 54. Examples of the lubricity imparting member include various polymer material thin films, for example, a known polymer material thin film such as polyethylene. However, when the grip body 20 is formed using a thermoplastic resin, a certain degree of heat resistance is required. Are preferred. Then, the cap member 5 is attached to the core pin 56 supported and fixed to the hot runner mold 54.
Then, the grip skin member 40 is temporarily fixed to the cap member 58.

Next, the hot runner mold 54 is moved to the left in FIG. 1 so that the tip 56a of the core pin 56 supported and fixed to the hot runner mold 54 is split.
The movement is stopped at the time of being accommodated in the concave portion 52c of a, 52b. In this state, the grip skin member 40
Are arranged along the inner walls of the split dies 52a and 52b, and the base end 40b of the grip skin member 40 is
a, 52 b and the hot runner mold 54. (c) Next, the molding material supply path 54 of the hot runner mold 54
The molding material is injected into the split molds 52a and 52b through the a and 54b to form the grip body 20. The type of molding material used is not particularly limited, and any foaming or non-foaming type can be used. The pressure at the time of injection is set according to the type and type of resin and rubber used. I do. (d) When the forming of the grip body 20 is completed, the split dies 52a and 52b are separated and the hot runner
4 is retracted, and the formed grip portion 10 is
Separated from 6. At this time, the lubricity imparting member 70 is
The core pin 56 can be easily separated from the through hole. (e) Then, the cap member 58 is removed, and as shown in FIG.
Into the through hole 60 to form an assist grip as shown in FIG. In this case, the lubrication imparting member 70 left in the through hole 0 allows the steel plate 30 to be fitted very smoothly.

Next, the operation of the embodiment will be described.

In this embodiment, the lubricating member 70
Is provided in the through hole of the grip body 20, the core pin 56 can be easily removed, and the steel plate 30 can be fitted into the grip portion 10 very easily.

Accordingly, when the steel plate 30 is inserted, the grip portion 10 is hardly damaged, and the productivity of the assist grip can be improved.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made within the scope of the present invention.

For example, the grip skin member is not an essential member, and therefore, sewing or the like is not necessarily required.

The grip body can take various shapes other than a rectangular cross section.

Further, the present invention can be applied not only to the assist grip but also to other grips.

[0028]

As described above, according to the present invention, since the grip core member can be easily fitted into the grip body, the grip body is less likely to be damaged, and the vehicle assist grip having improved productivity and the same. There is an effect that a manufacturing method can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a molding step according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a grip core member is fitted into a grip part obtained according to the present invention.

FIG. 3 is a perspective view of an assist grip obtained by the present invention.

FIG. 4 is a perspective view showing an example of a conventional assist grip.

FIG. 5 is a sectional view of the assist grip of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Grip part 20 Grip main body 30 Grip core member 40 Grip skin member 50 Grip mold 54 Hot runner type 56 Core pin 58 Cap member 70 Lubricity imparting member

──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. ⁶ Identification symbol FIB29L 31:00 (56) References JP-A-4-201425 (JP, A) JP-A-64-63117 (JP, A) JP-A-1-113216 (JP, A) JP-A-63-264313 (JP, A) JP-A-53-11955 (JP, A) JP-A-63-8680 (JP, A) JP-A-4-148908 (JP, A) JP, A) JP-A-3-187720 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B29C 45/00-45/84 B29C 33/58 B29C 39/10 B60T 7 / 08

Claims (2)

(57) [Claims] 1. An assist grip for a vehicle, comprising a grip body made of a flexible molding material and a flexible grip core member inserted therein, wherein a thin film of a polymer material is provided between the grip body and the grip core member. Assist grip for vehicles provided with a lubricity imparting member made of 2. A method of manufacturing a vehicular assist grip constituted by fitting a grip core member into a grip body made of a flexible molding material, comprising the steps of: (a) forming a grip inside a mold cavity defining an outer shape of the grip body; At a predetermined position, a core pin member whose periphery is covered with a lubricity-imparting member made of a polymer material thin film is arranged. (B) Then, the cavity is filled with a flexible molding material forming the grip body. After curing, the core pin member is removed from the grip body, (c) the obtained grip body is released, and then the through-hole of the grip body formed by the core pin member has a predetermined shape. A method for manufacturing an assist grip for a vehicle, comprising: fitting a flexible grip core member.