JPH06259Y2 - Resin tubular cover - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a resin cylindrical cover, which is formed by cutting the cover into two pieces of the same shape in the axial direction, and forming each cut on the outer surface of a pipe member or the like. The end surfaces are joined to each other so that they can be assembled or separated into a cylindrical shape that tightly surrounds the outer surface of a pipe member or the like.

(Prior Art) For example, as shown in FIG. 6, when the fuel supply port b of the fuel supply pipe a protruding from the fuel tank is in direct contact with the body d, the vibration of the body d directly affects the fuel supply pipe a. In addition to being transmitted, in the event of an accident, the body d may damage the refueling pipe a, and the refueling lid c provided on the refueling port b may be blown away by an impact, resulting in fuel leakage.
In order to prevent this, the applicant of the present invention has filed Japanese Utility Model Application No. Sho 62-82082.
Filed a patent application for wrapping a resin cylindrical cover e around the outer periphery of the filler port b for protection.

However, in order to fit the resin cylindrical cover e on the outer circumference of the oil supply port b, it is necessary to form the cover e into a cylindrical cut piece that is split in two in the axial direction and connect the cover e with a hinge so that it can be freely deployed. Integrally molding each of the split pieces has a drawback that the die is expensive to manufacture.

(Problems to be solved by the present invention) In view of the above, according to the present invention, each slit is molded by a separate mold, and each slit is joined to the axial end face in the axial direction to be integrated with each slit. It can be used as a protective cover for a pipe member such as the oil supply pipe a or the oil supply port b shown in FIG. 6 by connecting with a connecting portion formed in the shape of a pipe, and can also be detached by operating the connecting portion. It is an object of the present invention to solve the above problem by trying to solve the problem.

(Means for Solving Problems) The present invention has a specificity that meets the above-mentioned purpose.
An edge portion 2, which projects inward from the end edge and is continuous in the circumferential direction,
The resin cylindrical cover body 1 provided with 2'is
2 pieces of the same shape that are cut in the axial direction, including 2 ',
3a, and the thickened portions 6 and 6a are integrally provided on the inner surface of each of the cut pieces at the cut end portion so as not to exceed the projecting degree of the edge portions 2 and 2'in the inner surface direction. A resin formed by molding engaging grooves 7, 7a in the thick portions 6, 6a and extending pieces 8, 8a consisting of engaging projections that match the engaging grooves and projecting from the cut end surfaces 4, 4a to be integrally molded. The cylindrical cover has a structure capable of integrally forming the cut pieces provided from the cut end surfaces of both ends.

(Embodiment) FIGS. 1 to 3 of the accompanying drawings show a first embodiment of the present invention, FIGS. 4 and 5 show a second embodiment, and FIG. 1 is a perspective view and FIG. Fig. 3 is a perspective view showing the cut pieces separated, Fig. 3 is a cut plan view, Fig. 4 is a cut plan view in a separated state, and Fig. 5 is a cut plan view in an engaged state.

In the first embodiment, the cylindrical cover body 1 is provided at its upper and lower edges with circumferentially projecting edges 2 and 2 ', and the edges 2 and 2'are included as shown in FIG. Cylindrical slit pieces 3, 3a cut in the direction are formed, and cut end faces 4, 4a are formed at both ends of each slit piece 3, 3a.

Protrusions 5 and 5a, both ends of which are terminated by the cut end faces 4 and 4a, are provided close to the edge portion 2'on the inner surface of each split piece 3 and 3a. The thick portions 6 and 6a having a protrusion degree not exceeding the protrusion degree are provided to the edge portions 2 and 2'and the protrusions 5 and 5.
a between the a, and the engaging grooves 7, 6 in the thick portions 6, 6a.
Extension pieces 8 and 8a which are formed with 7a and which are engaged with the engagement grooves and which are engagement projections are projected from the cut end surfaces 4 and 4a. As a result, the respective cut pieces 3 and 3a can be formed in exactly the same shape as shown in FIG. 3, so that molding with the same mold becomes possible.

In this embodiment, the engaging grooves 7, 7a and the extension pieces 8, 8a of each cut piece are used.
Are used as connecting parts, and the end faces are joined with the cut end faces 4 and 4a as shown in FIG. 3, and the engaging grooves 7 and 7a and the engaging projections of the extension pieces 8 and 8a are fitted to each other as shown in FIG. A cylindrical shape such as a cylindrical shape is used.

4 and 5, the engaging groove 7 of one of the cut pieces 3 is provided on each outer surface, and the extension piece 8 with the engaging projection facing outward is projected from the inner surface of the thick portion 6 beyond the cut end surface 4. The other cut piece 3a is provided with an engaging groove 7a on the inner surface of the thick portion 6a, and an extension piece 8a having an engaging projection protruding inward is extended from each outer surface of the thick portion 6a. Configure

In this embodiment, the cutting pieces 3 and 3a have different molding shapes at both ends, as clearly shown in FIG. 4, and therefore the molding must be performed by separate molds. However, the fitting connection between the engaging grooves 7 and 7a at both ends and the slitting pieces 3 and 3a which are provided with the engaging projections provided on the extension pieces 8 and 8a as connecting portions is as shown in FIG. There is no change.

Further, since the tubular cover main bodies 1 of the first and second embodiments are both fitted on the outer circumference of a pipe or the like (see FIG. 6), the fitting shape holds the connected shape. When it is desired to remove it, the extension piece 8 or 8a or 8a or 8a which is on the outside is pulled outward.

(Operation) In the present invention, the cut pieces 3, 3a are approached from both sides of the outer circumference of a member such as a pipe having an outer diameter almost equal to the inner circumference of the edge portions 2, 2 ', and the engagement provided on each of the cut pieces. Grooves 7, 7a and extension piece 8,
It is used as a protective cover for protecting the pipe and the like by forming a tubular shape by fitting with the respective protrusions of 8a.

(Effect) In the present invention, the resin-made tubular cover body 1 is not formed into a tubular shape, but two cut pieces 3 and 3a of the same shape are cut in the axial direction including the edge portions 2 and 2 '. Since it is not integrally molded with the resin hinge, even if the inner surface is recessed from the inner circumference of the edge portions 2, 2 ', the thick end portions 6, 6a are provided on the inner surface of the cut end face. Further, it becomes easy to form the engaging grooves 7 and 7a on the inner surface of the thick portion, or to form the extension pieces 8 and 8a in which the engaging protrusions are projected inward,
In addition, it is easy to join the cutting end surfaces 4 and 4a of the cut pieces 3 and 3a to each other to form a cylindrical cover and perform shape retention.

[Brief description of drawings]

1 to 3 of the accompanying drawings show a first embodiment of the present invention, and FIGS. 4 and 5 show a second embodiment, wherein FIG. 1 is a perspective view and FIG. 2 is a cutting piece. FIG. 3 is a cutaway plan view in which the perspective view is separated, FIG. 3 is a cutaway plan view, FIG. 4 is a cutaway plan view in a separated state, and FIG. FIG. 6 is a sectional view showing a usage example. 1-Cylinder cover body made of resin 2,2'-edge 3,3a-cut piece 4,4a-cut end face 6,6a ... Thick part 7,7a-engagement groove 8,8a ... extension piece

Claims (1)

[Scope of utility model registration request] 1. A resin-made tubular cover main body having an end portion protruding inward toward the inner surface and provided with an edge portion continuous in the circumferential direction is divided into two pieces of the same shape by axially cutting the edge portion including the edge portion. Molded, integrally provided on the inner surface of each cut piece at the cut end portion with a thick portion having a projecting degree not exceeding the projecting degree of the above-mentioned edge portion toward the inner surface, and forming an engaging groove in each thick portion At the same time, a resin-made tubular cover is formed by integrally projecting an extension piece consisting of an engagement projection that matches the engagement groove, from the cut end surface.