JPS5942939Y2 - Hourglass-shaped spring structure with a single line border - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an hourglass-shaped spring structure whose frame line is a single line.

A conventional hourglass-shaped spring structure has several rows of springs made by arranging an appropriate number of hourglass-shaped springs in contact with each other in the longitudinal direction, arranged at regular intervals. It is a structure in which the parts that contact each other are screwed and connected with horizontal helical wires, but a frame line is enclosed around the top and bottom surfaces of the whole, and the contact parts are clipped.The frame line is a double line. Ta.

The structure of the drum-shaped spring of the present invention is that the drum-shaped springs arranged as described above are screwed and connected by helical wires as described above, but one frame line is passed around the entire circumference, and the surrounding drum-shaped springs are connected to each other. The outer portions of the rings on the upper and lower surfaces of the spring are brought into contact and secured with a clip.

That is, it is an hourglass-shaped spring structure whose frame line is a single line.

Until now, many people believed that an hourglass-shaped spring structure required two frame lines, that is, a double frame line, and did not consider other structures.

This proposal is a new idea that breaks this idea.

Since the top and bottom surfaces of the conventional drum-shaped spring structure with multiple frame lines are not directly connected, it is inevitable that the structure will sway laterally.

However, since the frame line of the drum-shaped spring structure of the present invention is a single wire, the upper and lower surfaces are directly connected in a circle, so lateral vibration is completely prevented and its elasticity is strengthened, thus having the effect of killing two birds with one stone. It is.

In a normal drum-shaped spring structure, a spring in which the spiral portion rotates three times is used, but in the present invention, a low drum-shaped spring in which the spiral portion turns two turns is used.

Therefore, it was possible to create an hourglass-shaped spring structure that reduced material costs and did not reduce its strength in the slightest.

The hourglass-shaped spring structure of the present invention will be explained in more detail with reference to the drawings.

Fig. 1 shows an hourglass-shaped spring 1 with a 2M spiral portion used in the water bundle.

Figure 2 shows the entire circumference of the hourglass-shaped springs 1 arranged in the usual general manner, with the contact portions of the rings on the upper and lower surfaces of the hourglass-shaped springs 1 connected by screws through horizontal helical lines 4. This is an ordinary drum-shaped spring structure 3 in which the upper and lower ring portions of a spring 1 are fixed to two upper and lower frame lines 5 with clips 6, respectively.

FIG. 3 shows an hourglass-shaped spring structure 2 according to the present invention, in which the arrangement of hourglass-shaped springs 1 is screwed and connected by the horizontal helical wire 4 as described above, and the rings on the upper and lower surfaces of the hourglass-shaped springs 1 are formed around the above-mentioned arrangement. The outer parts of the frame are fixed together to one frame line 5 on the outer periphery with a clip 6.

Therefore, when the drum-shaped spring structure 2 of the present invention is viewed from the front, a part of it is as shown in FIG. 4, and when viewed from the side, a part of it is as shown in FIG. A part of the body 1, when viewed in the direction of the arrow along the line -V, as shown in Figure 6, and a part of the drum-shaped spring structure 1 in Figure 5, viewed along the line ■-■ in the direction of the arrow. It looks like FIG. 1, and these drawings fully explain the assembly of the hourglass-shaped spring structure and understand its features.

The drum-shaped spring structure of the present invention has a single wire frame line, and the thickness of the structure can be made thin, so when applied to the pinerest of a hospital gear bed, it can be bent reliably.

It is also suitable for zafuton cushions and various types of cushions.

The present invention provides novel and useful bedding and household items as described above.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of an hourglass-shaped spring used in this invention, FIG. 2 is a perspective view of a conventional hourglass-shaped spring structure, and FIG. 3 is a perspective view of a conventional hourglass-shaped spring structure.
The figure is a perspective view of the drum-shaped spring structure of the present invention, FIG. 4 is a front view of a part of the structure of the present invention, FIG. 5 is a side view of a part of the structure of the present invention, and FIG. 4 is a cross-sectional view taken along the line vr-VT in the direction of the arrow, and FIG. 7 is a cross-sectional view of FIG. 5 taken along the line ■-■ in the direction of the arrow. 1... drum-shaped spring, 2... drum-shaped spring structure of the present invention, 3... conventional drum-shaped spring structure, 4... helical wire , 5...
...Frame line, 6...Clip.

Claims (1)

[Scope of utility model registration request] Several rows of springs made by arranging an appropriate number of drum-shaped springs in contact with each other in the longitudinal direction are arranged at regular intervals,
The contact parts of the upper and lower rings of each row of hourglass-shaped springs are screwed together using horizontal helical wires, and a frame line is enclosed around the whole of the hourglass-shaped springs. An hourglass-shaped spring structure with a single frame line, which is formed by bringing the outer parts of the ring portions of the upper and lower surfaces into contact and connecting to the single frame line with a clip.