JPH0545201Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention relates to underground areas used for civil engineering, construction sites, and agricultural work.

``Prior Art'' Underground tubs are manufactured by attaching an upper made of fabric sewn to a bottom made of rubber or synthetic resin by pasting or sewing.

When covering underground, the contact area between the ground bottom and the upper, particularly on the sides, comes into contact with objects or gets rubbed, and the upper fabric in this area tends to be damaged.

For this reason, in the past, fabric was sewn to this part as a reinforcing piece in the sewing method, or rubber tape was pasted around the periphery of the joint part in the pasting method.

However, the former, which has reinforcing fabric pieces sewn on,
Although it does not affect flexibility, it has a poor reinforcing effect, and the latter type of rubber tape has rubber tape attached to the entire periphery, so it tends to be heavy and lack flexibility. Additionally, during driving, the rubber tape often peeled off from the upper part at the bend.

``Problem to be achieved by the invention'' The invention does not use pieces of reinforcing fabric or rubber tape as described above, but aims to take advantage of the advantages of both to create an underground floor that is strong against friction and highly flexible. be.

``Means for Achieving the Object'' That is, the present invention consists of a rubber or synthetic resin fabric on the side of the joint part of the basement, the overall shape is approximately semi-shallow circular, and the thick stripes of the fabric and This invention relates to an underground structure characterized in that reinforcing pieces formed alternately and linearly from the periphery to the base are fixed to the bent portions where the fabric is thin or there is no fabric.

The present invention will be explained in more detail below.

The underground door of the present invention is manufactured by attaching an upper sewn from cloth to a ground sole made of rubber or synthetic resin by sewing or gluing. And on both or one side of this contact part, the overall shape is approximately shallow semicircle,
Reinforcing pieces formed in straight lines from the periphery to the base are fixed with an adhesive, and the thick striped portions of the fabric and the bent portions where the fabric is thin or have no fabric are alternately formed in a straight line from the periphery to the base. This reinforcing piece has alternating stripes and bent sections, so it has high flexibility, and the presence of thick stripes in the fabric makes it highly abrasion resistant, providing both flexibility and abrasion resistance at the same time. You can get a satisfying underground experience. In particular, this effect is large and highly practical, since the sides of the joints in the basement are subject to severe bending and are likely to come into contact with objects. However, since the reinforcing piece of the present invention has a generally shallow semicircular overall shape, there are no angular parts and harsh contact with utensils can be avoided as much as possible, which is more preferable. Note that this approximately shallow semicircle may have a shape obtained by cutting out a part of a circle, but may also have a slightly skewed shape as shown in the figure. The width (W) of this reinforcement is approximately 5 to 12 cm, the height (H) is approximately 2 to 4 cm, and the width of the bent portion is approximately 1 to 5 mm.

In addition, the reinforcing piece of the present invention is shown in Fig. 2 A or B or Fig. 5.
Although it may be molded and prepared as a single piece as shown in Figures A or B, it may also be provided integrally and consecutively when molding the grounding sole.

The present invention will be explained below with reference to the drawings.

In the figure, 1 is Atsupa, 2 is the ground bottom, 3 is Kohaze,
4 is a hanging thread, 5 is a toe reinforcing piece, and 6 is a heel reinforcing piece, and in the present invention, the reinforcing piece 7 is fixed to the side of the joint part of the underground foot. In the figure, 7A is a muscular portion, and 7B is a bent portion.

Note that the present invention also includes other embodiments. That is, as shown in FIGS. 6 and 7, this is an example in which a muscle portion 7A and a bent portion 7B are formed, and a connecting piece portion 7C is further formed around the periphery. Even in these examples, the flexibility of the reinforcing piece 7 is maintained, and due to the presence of the connecting piece 7C, it can be securely fixed to the upper, and its durability is also increased.

"Effects of the Invention" Since the present invention is as described above, it has the practical effects of being strong against friction, having good flexibility, and being easy to manufacture without increasing the weight.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention for underground installation, Figs. 2 A and B are front views of the reinforcing piece, Figs. 3 and 4 are sectional views of a part of the reinforcing piece, and Fig. 5. A and B are front views showing another example of the reinforcing piece, and FIGS. 6 and 7 are front views showing still another reinforcing piece. In the figure, 1 is the upper, 2 is the ground bottom, 7 is the reinforcement piece,
7A indicates a muscular portion, and 7B indicates a bent portion.

Claims (1)

[Scope of utility model registration request] On the side of the joint of the basement, it is made of rubber or synthetic resin fabric, and the overall shape is approximately shallow semicircle,
An underground bath characterized by having reinforcing pieces formed in a straight line alternately extending from the periphery to the base of thick striations of fabric and bent areas of thin fabric or no fabric fixed to each other.