JP3243737U - Bags for civil engineering work - Google Patents

Abstract

[Problem] To provide a bag body for civil engineering work that can be easily made into an open state at the top end of a large bag by using items available at the site. [Solution] The bag body 1 for civil engineering work of the present invention includes a bag 2 with an open top end, a plurality of hanging belts 3 for lifting provided on the top of the bag 2, and a long belt provided on the top edge of the bag 2. It is made up of a plurality of hooks 4 each having a ring for inserting a rigid body in the shape of a rod. Moreover, the bag 2 is made of polypropylene, and the elongated rigid body is made of wire. [Selection diagram] Figure 1

Description

The present invention relates to a bag for civil engineering work such as a large bag used at construction sites.

There are bags for civil engineering work, such as large bags, for storing materials such as earth and sand. This bag for civil engineering works can be used, for example, by placing the large bag over a basket-like frame, or by placing an annular frame at the top opening of the large bag in order to open the top opening when filling the bag with earth and sand. was installed.

For example, Patent Document 1 discloses a bag that is opened by attaching an annular frame to the upper opening of the bag.

Japanese Patent Application Publication No. 2001-270504

However, in cases where the bag is opened using a basket-like frame, it is necessary to prepare a frame that matches the size of the bag, and also requires a place to store the frame.

Furthermore, the annular frame may come off from the bag during work.

The purpose of the bag for civil engineering work of the present invention is to provide a bag for civil engineering work that can be easily made into an open state at the top end of a large bag by using what is available at the site.

The bag body for civil engineering work of the present invention includes a bag with an open top, a plurality of hanging belts for lifting provided on the top of the bag, and a long rigid body insertion belt provided on the top edge of the bag. It is characterized by consisting of a plurality of hooks each having a loop formed therein.

Further, the bag is characterized in that it is made of polypropylene.

Further, the elongated rigid body is characterized in that it is a wire.

Further, the hook ring is formed at a location projecting upward from the upper edge of the bag.

Furthermore, the bag is characterized by having an inverted hanging belt at the bottom.

According to the present invention, it becomes possible to easily open the upper end of the large bag by using items on site.

FIG. 1 is a perspective view of the bag for civil engineering work of the present invention, seen from above. FIG. 2 is a perspective view of the main part of the bag for civil engineering work of the present invention, viewed from below. FIG. 3 is an explanatory diagram of the hanging belt and hook of the present invention. FIG. 2 is an explanatory plan view of the inverted suspension belt of the present invention. FIG. 2 is an explanatory side view of the inverted suspension belt of the present invention.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the bag 1 for civil engineering work of the present invention includes a bag 2 with an open top and a plurality of bags provided on the upper side 2a of the bag 2, which can be attached to, for example, crane hooks. A hanging belt 3 formed with a ring that can be combined with each other, a hook 4 provided at the upper end of the side surface of the bag 2 and having a ring portion 4a at its tip for inserting a long rigid body such as a wire, and the bag 2. It consists of an inverted hanging belt 5 which is provided at the center of the bottom surface 2b of 2 and has a ring portion 5a at its tip that can be engaged with a crane hook or the like.

The bag 2 is made of PP (polypropylene), for example. Conventional bags were not strong because they were made of cloth, but in the present invention, they are made of PP, so they are strong.

Further, the bag 2 is, for example, a self-supporting bag with a rectangular cross section. Further, the bag 2 has, for example, length, width, and height of 600 mm, 600 mm, and 400 mm, but is not particularly limited to these sizes, and may have a circular cross section.

Each of the suspension belts 3 is provided, for example, on the upper part of each side surface 2a of the bag 2 having a rectangular cross section, but the number is not particularly limited as long as there are two or more. Further, the hanging belt 3 is constructed by, for example, sewing both ends 3b, 3b of the belt-like belt 3a to the side surface 2a of the bag 2, as shown in FIG. A ring is formed.

The ends 3b, 3b of the belt 3a are sewn from the lower end to the upper end of the side surface 2a of the bag 2 in order to increase strength.

Further, a reinforcing belt 6 may be sewn to the upper part 3c of the suspension belt 3 to make it double.

The belt-shaped belt 3a has a length of, for example, 1900 mm, and is sewn to the bag 2 by 300 mm at each end.

Each of the hooks 4 is made by, for example, folding a 300 mm strip belt 4b in half and sewing both ends of the strip belt to the front and back sides of the upper edge of the bag 2, respectively, as shown in FIG. The hook 4 is formed in a ring shape, and the ring portion 4a of the hook 4 is formed to protrude upward from the upper end of the bag 2 by, for example, 50 mm.

The hooks 4 are provided, for example, at the upper end of each of the side surfaces 2a, for a total of 12 pieces, but the number is not particularly limited.

For example, as shown in FIGS. 4 and 5, the inverted hanging belt 5 is made by folding back a belt-like belt 5b twice and sewing it together at the middle of the triple overlap to form a ring portion 5a at one end.

In FIG. 5, numeral 7 is an imaginary line indicating the stitching location.

Further, the inverted hanging belt 5 is fixed by sewing the base of the inverted hanging belt 5 to the center of the bottom surface 2b of the bag 2.

Further, in order to reinforce the sewn base, a reinforcing belt 8 is further sewn in a criss-cross pattern for reinforcement.

Since the present invention has the above-described structure, the upper end of the bag is opened by inserting a long rigid body such as a rigid wire into the loop of each hook.

The elongated rigid body maintains its shape under gravity if no force is applied to it, but preferably has a hardness that allows it to be bent by hand.

In addition to the wire, the elongated rigid body includes, for example, a steel wire such as a steel wire, and a wire made of synthetic resin.

According to the present invention, it becomes possible to easily open the top end of the bag using the equipment on site.

1 Bag body 2 Bag 2a Side surface 2b Bottom surface 3 Suspension belt 3a Band-shaped belt 3b End portion 3c Upper part 4 Hook 4a Ring section 4b Band-shaped belt 5 Inverted suspension belt 5a Ring section 5b Band-shaped belt 6 Reinforcement belt 7 Virtual line 8 Reinforcement belt

Claims (5)

A bag with an open top,
a plurality of hanging belts provided on the top of the bag;
A bag for civil engineering work, comprising a plurality of hooks provided on the upper edge of the bag and each having a ring for inserting an elongated rigid body. The bag for civil engineering work according to claim 1, wherein the bag is made of polypropylene. The bag for civil engineering work according to claim 1, wherein the elongated rigid body is a wire. 2. The bag for civil engineering work according to claim 1, wherein the hook ring is formed at a location projecting upward from the upper edge of the bag. The bag for civil engineering work according to claim 1, further comprising an inverted suspension belt at the bottom of the bag.

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