JP3047296U - Door mounting structure to the box - Google Patents

Abstract

(57) [Problem] To provide a door mounting structure to a box which can reduce the number of parts, is easy to assemble, has no risk of the shaft falling off, and can be assembled at low cost. Projection shafts are provided at upper and lower ends, respectively, and the projection shafts of the hinge shaft which can be bent or compressed against elastic extension force are respectively connected to upper and lower half portions of a door body. Shaft holes 4a and 4b formed in 2a and 2b, and shaft holes 3 formed in upper and lower pieces 1a and 1b of the box 1 so as to coincide with the shaft holes 4a and 4b.
a and 3b by elastic resilience.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a structure for attaching a door to a box such as a mail box or a newspaper box.

[0002]

[Prior art]

 In the case of a mail box or a newspaper box, a shaft is inserted into each of the shaft holes in the upper and lower pieces of the door and the upper and lower pieces of the box in order to attach the door to the opening of the box. The unit is equipped with snap rings for retaining and dropping, screwing, shaft screw processing, and shaft caulking.

[0003] However, in these door mounting means, the shaft may come off, and a part for preventing the shaft from coming off is required, which complicates the structure, increases the cost of parts, and takes time and man-hours for assembly. However, there is a disadvantage that the production cost is high.

[0004]

[Purpose of the present invention]

 According to the present invention, the number of parts can be reduced, the assembling is easy, and there is no possibility that the shaft will fall off.

[0005]

[Means of the present invention]

 In order to achieve the above object, the basic configuration of the present invention is that the projecting shaft is provided at each of the upper and lower ends, and each of the projecting shafts of the hinge shaft that can be bent or compressed against elastic extension force is a door body. The shaft holes formed in the upper and lower pieces of the box and the shaft holes formed in the upper and lower pieces of the box so as to coincide with the shaft holes are fitted by elastic straightening force.

As a specific mode, each projecting axis of a hinge shaft body having elasticity and having projecting axes provided at the upper and lower ends of an elastic rod-like body that can be bent against this elasticity is formed by the upper and lower sides of the door body. The shaft holes formed in the one part and the shaft holes formed in the upper and lower pieces of the box body are fitted by elastic straightening force.

[0007] In still another specific embodiment, each protruding shaft of the hinge shaft provided at the upper and lower ends of the compression coil spring is provided in a shaft hole formed in the upper and lower pieces of the door body and in the upper and lower pieces of the box. And the shaft hole is fitted by the elastic extension force of the spring.

[0008]

【Example】

 Hereinafter, the present invention will be described with reference to embodiments shown in the accompanying drawings. 1 and 2 show a first embodiment, in which reference numeral 1 denotes a box, and 2 denotes a door. The box 1 has an opening at the back, and has shaft holes 3a, 3b at one end (right end in FIG. 1) of upper and lower pieces (inward flanges) 1a, 1b. Shaft holes 4a, 4b corresponding to the shaft holes of the box body are also formed at one end of upper and lower pieces (inward flanges) 2a, 2b of the door body 2.

Reference numeral 5 denotes a hinge shaft, which is formed by attaching projecting shafts 7a and 7b to upper and lower ends of a bar 6 made of a solid bar or a hollow pipe, and the bar 6 is made of a plastic material or a rubber material (synthetic material). It is made of a material having elasticity such as a rubber material), and can be bent against the straightening force (returning to a straight rod) due to the elasticity.

According to the present invention, such a hinge shaft is bent by hand as shown by the imaginary line in FIG. 1, and the protruding shafts 7a, 7b at both ends are brought into contact with the shaft holes 4a, 4b in the upper and lower half portions of the door, When the hand is released from the hinge shaft, the hinge shaft extends due to its elastic extension force, and the projecting shafts at both ends automatically fit into the shaft holes of the door and the box, and the door rotates with respect to the box. Mounted so that it can be opened and closed dynamically.

There is no need to take any means to prevent the attached hinge shaft from coming off. The hinge shaft can be easily removed by bending as shown in FIG.

FIGS. 3 and 4 show a second embodiment. In this embodiment, a rod-shaped hinge shaft is provided with projecting shafts 7 a and 7 b at both upper and lower ends of a compression coil spring 8.

In this embodiment, with the compression coil spring 8 contracted by hand, one (for example, the lower end) protruding shaft is inserted into the shaft hole of each lower piece of the door body and the box body. When the hand is released from the spring, the protruding shaft at the upper end automatically fits into the shaft holes of the upper pieces of the door and the box due to the elasticity of the spring, and the door is attached to the box. There is no need to provide retaining means.

The attached hinge shaft can be removed by sequentially removing the protruding shaft by manually compressing the compression coil spring.

[0015]

[Effect of the present invention]

 As described above, according to the present invention, the hinge of the door to the box can be extremely easily mounted, and the door can be easily removed. In addition, the number of parts may be small, and the assembling may be performed in a short time and with a small number of man-hours.

[Brief description of the drawings]

FIG. 1 is a rear view showing a first embodiment of a box according to the present invention.

FIG. 2 is a vertical sectional view taken along line II-II of FIG.

FIG. 3 is a rear view showing a second embodiment of the box according to the present invention.

FIG. 4 is a vertical sectional view taken along the line IV-IV in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Box body 2 ... Door body 2a ... Upper piece 2b ... Lower piece 3a ... Shaft hole 3b ... Shaft hole 4a ... Shaft hole 4b ... Shaft hole 5 Hinge shaft 6 Bar 7a Projecting shaft 7b Projecting shaft 8 Compression coil spring

Claims (3)

[Utility model registration claims] 1. A projecting shaft is provided at each of upper and lower ends, and each projecting shaft of a hinge shaft body capable of bending or compressing against an elastic straightening force has a shaft hole formed in upper and lower pieces of a door body. A door mounting structure for a box, which is fitted by elastic elasticity into a shaft hole formed in the upper and lower pieces of the box so as to coincide with this. 2. A hinge shaft in which projecting shafts are provided at upper and lower ends of an elastic rod-like body having elasticity and capable of bending against the elasticity, each projecting shaft is formed in an upper and lower piece of a door body. And a door body attaching structure to a box body which is fitted by elastic extension force into shaft holes formed in upper and lower pieces of the box body so as to coincide with the above. 3. Each of the projecting axes of the hinge shafts provided at the upper and lower ends of the compression coil spring is formed in the upper and lower pieces of the box so as to coincide with the shaft holes formed in the upper and lower pieces of the door. A door body mounting structure to a box body which is fitted into the shaft hole by an elastic extension force of a spring.