JPH0527690Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a C-ring in which a wire is curved into a C-shape.

[Conventional technology]

C-rings are used in automobile chairs, beds, furniture, when fastening wires to be fastened, when fixing fabrics and sheet materials to wires, and the like.

FIG. 6 is a front view of a conventional C-ring, and FIG. 7 is a bottom view of the same. In the figure, 1 is a C ring made by bending a round wire rod made of steel etc. into a C shape;
a is an end face of the C-ring 1, and the end face 1a is perpendicular to the center line of the round wire.

In this C-ring 1, as shown in FIG. 8, when the wire 2 to be fastened is fastened with the C-ring 1, both end surfaces 1a may come into contact with each other, making it impossible to fasten the wire 2 to be fastened. .

FIG. 9 is a front view showing another conventional C-ring, and FIG. 10 is a bottom view of the same. In the figure, 3 is a C-ring made by bending a round wire made of steel or the like into a C-shape, 3a is the end face of the C-ring 3, and both end faces 3a are inclined in the same direction with respect to the center line of the round wire. .

FIG. 11 is a plan view showing a part of the C-ring fastening device, and FIG. 12 is a front view of the same. In the figure, 4 is a lower jaw, 5 is a feed groove provided in the lower jaw 4, and 6 is a receiving groove provided in the lower jaw 4. Note that the upper jaw also has the same shape as the lower jaw.

To fasten a wire to be fastened (not shown) with the C-ring 3 using the C-ring fastening device having the lower jaw shown in FIGS. 11 and 12, first, as shown in FIG. 13a, The C-ring 3 is guided by the feed groove 5 and the feed groove 8 of the upper jaw 7 to the tips of the upper jaw 7 and the lower jaw 4, and the wire to be fastened is positioned inside the C-ring 3. In this state, as shown in FIG. 13b, when the tips of the upper jaw 7 and the lower jaw 4 are brought close to each other, the end surfaces 3a abut, but both end surfaces 3a are oriented in the same direction with respect to the center line of the round wire. Since it is slanted, as shown in FIG. 13c, when the tips of the upper jaw 7 and the lower jaw 4 are brought closer together, both ends of the C-ring 3 overlap.

[The problem that the idea attempts to solve]

However, in such a C-ring, when the wire to be fastened etc. is fastened, the
As shown in Figure 5, since the angle formed between the outer surface of the end of the C-ring 3 and the end surface 3a is an acute angle, the end of the C-ring 3 may injure the hands of workers, etc. Furthermore, the ends of the C-ring 3 may damage the fabric, sheet material, etc. that should be fixed to the wire.

This invention was made in order to solve the above-mentioned problems, and it prevents the hands of workers etc. from being injured by the end of the C-ring when the materials to be fastened are fastened, and the end of the C-ring C. The fabric, sheet material, etc. to be fixed to the fastened material will not be damaged by
The purpose is to provide rings.

[Means to solve the problem]

In order to achieve this purpose, in this invention, in a C-ring made of a wire curved into a C-shape, both end surfaces are inclined in the same direction with respect to the center line of the wire, and at least one of both ends is Bend in the direction that the end face faces.

[Effect]

In this C-ring, in the fastened state,
The angle formed between the outer surface of the end of the C-ring and the end surface is an obtuse angle.

〔Example〕

FIG. 1 is a front view showing a C-ring according to this invention, FIG. 2 is a side view, and FIG. 3 is a bottom view. In the figure, 10 is a C-ring made by bending a round wire made of steel or the like into a C-shape, and 10a is an end face of the C-ring 10, and both end faces 10a are inclined in the same direction with respect to the center line of the round wire. . 10b is C
At the end of the ring 10, the end 10b is bent in the direction in which the end surface 10a faces.

To fasten a wire to be fastened (not shown) with the C-ring 10 using the C-ring fastening device having the lower jaw shown in FIGS. 11 and 12, first, as shown in FIG. 4a, The C-ring 10 is guided to the tips of the upper jaw 7 and the lower jaw 4 by the feed groove 5 and the feed groove 8, and the wire to be fastened is positioned inside the C-ring 10. In this state, as shown in FIG. 4b, when the tips of the upper and lower jaws 7 and 4 are brought close to each other, the ends 10b are bent in the direction in which the end surfaces 10a face, so both end surfaces 10a come into contact. As shown in FIG. 4c, when the tips of the upper jaw 7 and the lower jaw 4 are brought closer together, both ends 10b of the C-ring 10 overlap.

In this C-ring, when a wire to be fastened or the like is fastened, as shown in FIG. end 10b of
As a result, the hands of workers etc. are not injured, and the end portion 10b of the C-ring 10 does not damage the fabric, sheet material, etc. to be fixed to the wire.

In the above embodiment, both ends 10b were bent in the direction in which the end surface 10a faced, but both ends 10
At least one of b may be bent in the direction toward which the end surface 10a faces. Further, in the above embodiment, a round wire rod is used as the wire rod, but a square wire rod or the like may be used as the wire rod. Further, in the above embodiment, a round wire made of steel is used, but a round wire made of aluminum, copper, etc. may also be used. Further, by connecting a large number of C-rings 10 together with tape or the like, a large number of C-rings 10 can be filled into the C-ring fastening device at once.

[Effect of idea]

As explained above, in the C-ring according to this invention, in the fastened state, the angle formed between the outer surface of the end of the C-ring and the end surface becomes an obtuse angle, so that the C-ring
The ends of the ring do not injure the hands of workers, and the ends of the C-ring do not damage the fabric, sheet material, etc. to be fixed to the material to be fastened. In this way, the effects of this invention are remarkable.

[Brief explanation of drawings]

Figure 1 is a front view showing the C-ring according to this invention, Figure 2 is a side view, Figure 3 is a bottom view, and Figure 4 shows the C-ring shown in Figures 1 to 3. Figure 5 is a diagram showing the state in which the C-rings shown in Figures 1 to 3 are fastened.
The figure is a front view showing a conventional C-ring, Fig. 7 is a bottom view, Fig. 8 is a view showing a state in which the C-ring shown in Figs. 6 and 7 is fastened, and Fig. 9 is a view showing a conventional C-ring. 10 is a bottom view, FIG. 11 is a plan view showing a part of the C-ring fastening device, FIG. 12 is a front view, and FIG. 13 is a front view of the C-ring.
Figure 14 shows the state of fastening with the C ring shown in Figure 10, Figure 14 shows the C ring shown in Figures 9 and 10.
FIG. 15 is a plan view showing a state in which the ring is fastened, and FIG. 15 is a front view as well. 10...C ring, 10a... end face, 10b...
…edge.

Claims (1)

[Scope of utility model registration request] In the C-ring, which is made by bending the wire into a C-shape,
A C-ring characterized in that both end surfaces are inclined in the same direction with respect to the center line of the wire, and at least one of the both ends is bent in the direction in which the end surface faces.