JPH11115833A - Manufacture of auxiliary tire housing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce manufacturing processes to a half, and to improve the air-tightness by integrally forming a casing with a cover body, of which openings are arranged opposite to each other, so as to form a hollow molding with blow forming, and cutting the hollow molding along a boundary part between the casing main body and the cover body so as to manufacture the casing main body and the cover body. SOLUTION: M means a blow molding device, 50 means a mold, 51 means a cavity to be formed by the mold 50, 52 means a blowing passage the compressed air into the cavity 51. A hollow molding A is integrally formed from a tubular parison by this blow molding device M. This hollow molding A is formed by arranging a casing main body 21 and a cover body 22 opposite to each other through a connecting cylinder 60, and integrally forming them by blow molding. Since a blowing passage 52 is opened in this connecting cylinder 60, it is unnecessary to provide a through hole in the casing main body 21 and the cover body 22, and degree of design freedom can be thereby improved. Thereafter, cutting is performed along a boundary 62, between the casing main body 21 and the cover body 22 so as to separate the connecting cylinder 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an auxiliary tire housing device for a vehicle, comprising a bottomed cylindrical casing body and a lid removably fitted into an opening of the casing body. Here, the vehicular auxiliary tire storage device is installed on the back side of an automobile or the like and used to store an auxiliary tire.

[0002]

2. Description of the Related Art Heretofore, this kind of vehicle auxiliary tire accommodating apparatus has been manufactured by separately resin molding the casing main body and the lid body, trimming burrs, and then painting.

[0003]

However, in such a conventional manufacturing method, since the casing body and the lid must be separately molded and trimmed separately, the manufacturing process is troublesome. In addition, it is difficult to improve the working efficiency, and furthermore, it is difficult to improve the airtightness of the casing because the manufactured casing main body and the lid are hardly adapted to each other.

An object of the present invention is to eliminate such inconvenience.

[0005]

In order to achieve the above object, in a method of manufacturing a vehicular auxiliary tire accommodating apparatus according to the present invention, a detachable cylindrical casing body having a bottom and an opening of the casing body are provided. In the vehicle auxiliary tire storage device having a lid to be inserted, a hollow molded product having an opening of the casing and an opening of the lid facing each other is integrally formed by blow molding, and thereafter, the casing is formed. Since the casing main body and the lid are manufactured by cutting the hollow molded product along the continuous portion between the main body and the lid, the casing main body and the lid are integrally formed by resin molding. As a result, the resin molding process is reduced by half, and trimming is not necessary because the hollow molded product is cut along the connecting portion. In addition, the casing body and the lid are simultaneously made of resin. Since the shape, in which the casing main body and the lid are manufactured familiar.

[0006] A hollow molded article in which an opening of the casing body and an opening of the lid are opposed to each other via a connecting cylinder is integrally formed by blow molding, and then the connecting cylinder is connected to the hollow molded article. If the casing main body and the lid are manufactured by cutting out from the above, an air blowing hole can be provided in the connecting cylinder portion, so that a casing main body and a lid having no through-hole can be manufactured.

[0007]

1 is a diagram showing a molding process of a hollow molded article according to the present invention, FIG. 2 is an explanatory view of cutting the hollow molded article into a casing body and a lid, and FIG. FIG. 4 is a front view of the apparatus, and FIG.

In FIG. 4, reference numeral 10 denotes a four-wheeled vehicle, and reference numeral 20 denotes a vehicular auxiliary tire storage device (hereinafter referred to as “auxiliary tire storage device”) installed on the back side of the vehicle 10. FIG.
, 21 is a casing main body of the auxiliary tire storage device 20. The casing main body 21 has a cylindrical shape with a bottom, and an auxiliary tire is housed inside. Reference numeral 22 denotes a lid, which is detachably fitted into the opening 23 of the casing main body 21 and is hooked via a connector 30. Note that 31
Is a turnbuckle for fixing the inserted state.

[0009] The auxiliary tire accommodating apparatus thus configured.
20 manufacturing methods will be described.

In FIG. 1, M is a blow molding apparatus, and 50 and 50 are dies. Reference numeral 51 denotes a cavity formed by the molds 50, 50, and 52 denotes a blowing path for blowing compressed air into the cavity 11. This blow molding device M
Thereby, the hollow molded article A according to the present invention is integrally formed from the tubular parison. The hollow molded article A is formed by blow molding the casing main body 21 and the lid 22 so as to oppose each other via a connecting cylinder 60. By the way, since the blowing passage 52 is open to the connecting cylinder 60, there is no need to provide a through hole in the casing body 21 and the lid 22, and the degree of freedom in their design can be improved. . Further, as the material of the hollow molded article A, polypropylene or the like is used.

The hollow molded article A thus integrally molded
As shown in FIG. 2, along a boundary 61 between the connecting cylinder 60 and the casing body 21, a boundary 61 between the connecting cylinder 60 and the casing body 21, and a boundary 62 between the lid 22. The casing body 21 and the lid 22 are made independent by cutting off the connecting cylinder 60. Thereafter, the casing body 21 and the lid 22 are painted. The cut connection tube 60 is supplied as a material to a hopper of an extruder.

The painted casing body 21 and the lid 22 are combined, and a connector 30 and a turnbuckle 31 are attached as shown in FIG.

In this embodiment, when forming the hollow molded article A, the casing main body 21 and the lid 22
Are opposed to each other with the connecting cylinder 60 interposed therebetween.
The casing main body 21 and the lid 22 can be directly opposed without intervening. In this case, the blowing passage 52 is opened in the casing body 21 or the lid 22.

[0014]

According to the method for manufacturing a vehicle auxiliary tire accommodating device according to the present invention, a vehicle auxiliary tire having a bottomed cylindrical casing body and a lid removably fitted into an opening of the casing body. In the storage device, a hollow molded product in which the opening of the casing and the opening of the lid are opposed to each other is integrally formed by blow molding, and then along a continuous portion between the casing main body and the lid. In order to manufacture the casing main body and the lid by cutting the hollow molded article, the resin molding of the casing main body and the lid is integrally performed. Since the trimming is not required to cut the hollow molded product along the continuous portion, the manufacturing process is greatly reduced, so that it is easy to improve work efficiency in manufacturing, and furthermore, Since the pacing main body and lid are molded simultaneously, manufactured casing body and the lid and is familiar result, the material can easily improve the airtightness of the casing.

A hollow molded article in which the opening of the casing body and the opening of the lid are opposed to each other via a connecting cylinder is integrally formed by blow molding, and thereafter the connecting cylinder is connected to the hollow molded article. If the casing main body and the lid are manufactured by cutting out from the above, an air blowing hole can be provided in the portion of the connecting cylinder, so that a casing main body and a lid having no through-hole can be manufactured. Therefore, the degree of freedom of these design properties can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a molding process of a hollow molded article according to the present invention.

FIG. 2 is an explanatory view of cutting the hollow molded article into a casing body and a lid.

FIG. 3 is a side view of the manufactured vehicle auxiliary tire storage device.

FIG. 4 is a diagram showing the state of use.

[Explanation of symbols]

 A… hollow molded article 20… auxiliary tire storage device for vehicle 21… casing body 22… lid 23… opening 60… connecting cylinder

Claims (2)

[Claims] 1. An auxiliary tire storage device for a vehicle, comprising: a bottomed cylindrical casing main body; and a lid removably inserted into an opening of the casing main body, wherein the opening of the casing and the lid are provided. The hollow molded article with the opening of the casing body is integrally formed by blow molding, and thereafter, the hollow molded article is cut along a continuous portion of the casing main body and the lid to form the casing main body. A method for manufacturing an auxiliary tire storage device for a vehicle, comprising manufacturing the lid. 2. A vehicular auxiliary tire accommodating device having a bottomed cylindrical casing main body and a lid detachably fitted into an opening of the casing main body, wherein the opening of the casing main body and the lid A hollow molded article whose opening is opposed via a connecting cylinder is integrally molded by blow molding, and then
A method for manufacturing an auxiliary tire housing device for a vehicle, wherein the casing body and the lid are manufactured by cutting the connecting cylinder from the hollow molded product.