JPS6326062Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use This invention relates to a portable chair, and aims to provide a simple and easy-to-use chair for applications where the user frequently stands up, sits down, and moves, such as during agricultural work.

Conventional Technology Conventionally, in the case of crops that are grown on the ground, such as melons and watermelons, agricultural work such as picking buds was performed in a low position, which made the work difficult and often caused back pain.

Therefore, it is desirable to use a chair to sit on while working, but since the above agricultural work requires moving one after the other, it takes time and effort to carry a chair each time you move. In the case of chairs, they were heavy, cumbersome to carry, and difficult to use. Furthermore, since agricultural work is carried out outdoors and humid, the lower back and buttocks of workers tend to get cold, especially if they sit on a cold chair, which makes their bodies even colder, which is not only uncomfortable but also bad for their health.

Purpose and Structure Therefore, the purpose of this invention is to solve the above-mentioned problems as a portable chair used during agricultural work, etc., and to be able to maintain the health of workers without getting in the way of work or movement. The aim is to provide a convenient chair, and its structure consists of a block-shaped seat body made of synthetic resin foam, a lid that closes the cavity inside the seat body, and a seat that closes the seat to the waist. The seat body is provided with a rib wall that partitions the cavity, and a recess is formed at the upper end of the rib wall. A mounting hole for inserting the mounting belt is formed on the side surface parallel to the wall. It is characterized in that it is suspended in a mountain shape from the mounting hole on the opposite side through a recess in the rib wall to the mounting hole on the opposite side.

Embodiment Next, embodiments of this invention will be illustrated below with reference to the drawings.

Figure 1 shows the entire chair, of which one
Reference numeral 0 denotes a seat body, which is made of a block-shaped foamed polystyrene or the like, and has a hollow portion 11 formed inside thereof, and the upper surface of the hollow portion 11 is formed as an opening. A rib wall 12 is formed to partition the center of the cavity 11, and serves to reinforce the entire seat body 10. Reference numeral 13 denotes a recessed portion at the upper end of the rib wall 12, through which a mounting belt, which will be described later, is inserted.

Mounting holes 14, 14 for mounting belts are formed through the side surface of the seat body 10 parallel to the rib wall 12.
It is provided at a lower position than the recess 13 of No. 2.
Further, the side wall below the mounting holes 14, 14 is recessed to the bottom with the same width as the mounting holes 14, 14, and this recessed portion 15 is formed in the molded upper mounting hole 1 of the seat body 10.
Although the formation of the recesses 4 and 14 is facilitated, the formation of the recessed portion 15 is not necessary when the attachment holes 14 and 14 are formed by cutting.

Next, in order to close the opening of the cavity 11, a cover 10' made of the same material as the main body of the seat 10 is attached to the seat 10.
0 so that it can be freely fitted onto the top surface. By closing the lid portion 10' on the seat body 10, the entire body is constructed in the shape of a substantially rectangular parallelepiped block. In the case of the figure, the four side corners of the seat body 10 and the lid portion 10' are formed into smooth arc shapes.

Note that the shape of the seat body 10 is not limited to that shown in the drawings, and can be freely changed as long as it is easy to sit on and is stable.

Further, as the synthetic resin foam forming the seat body 10 and the lid portion 10', in addition to polystyrene, foams made of various synthetic resins alone, copolymers, or mixed resins such as polyethylene and polypropylene can be used. Among these, particularly preferred is a resin foam in which a polyolefin resin and a polystyrene resin are at least partially graft-bonded.

To explain the above foam in detail, polyolefin particles such as polyethylene or polypropylene are used as cores, and a styrene monomer and a catalyst for polymerizing the monomers are absorbed into the cores,
By polymerizing a styrene monomer within this core, at least a portion of the polyolefin resin and polystyrene resin are grafted (the graft bonding portion is 1% or more of the total of the polyolefin resin and polystyrene resin). be. Then, a foaming agent is added to the resin particles to form foamable resin particles.
%), manufactured by Sekisui Plastics Co., Ltd.], the particles are foamed to form pre-expanded particles, and then the pre-expanded particles are filled into a mold and heated to fuse and integrate to form the seat body 10 and This is for molding the lid portion 10'.

The above-mentioned resin foam is a very suitable material because it has excellent elastic strength and can improve durability during use, as well as provide a good feel when sitting on it.

Next, reference numeral 20 denotes a mounting belt, which is used to attach the seat body 10 and the lid part 10' to the waist of the user, and is made of elastic material that is stretchable and highly elastic, such as a band-shaped rubber band or a rubber-filled cloth woven with rubber. It is formed of a belt and is suspended in a mountain shape from a mounting hole 14 on one side of the seat body 10 via a recess 13 at the upper end of the rib wall 12 to a mounting hole 14 on the opposite side. Note that after the mounting belt 20 is inserted into the mounting holes 14, 14 and mounted in a mountain shape in the cavity 11 inside the seat body 10,
If it is formed into a ring shape, it can be easily worn on the waist and is suitable for use.

As the mounting belt 20, an elastic belt such as the one described above can easily accommodate differences in the waist thickness of the user, and can always apply an appropriate tightening force. It can be used conveniently because the mounting position of ' does not shift or fall off.

However, when the mounting belt 20 is made of a material that is not very stretchable, such as ordinary cloth, leather, or synthetic resin, or in order to increase flexibility depending on the thickness of the waist, the length of the mounting belt 20 may be changed. By making it adjustable, you can adjust it over a wide range to accommodate the thickness of your waist.

Specifically, it is sufficient to provide an adjustment section 21 similar to a normal length adjustment section used in conventional belts for slacks or skirts, or hanging straps for bags. In addition, if a detachable engagement part 22 similar to the buckle of a belt for slacks is provided in the middle of the attachment belt 20, and the attachment belt 20 is formed to be separable from side to side, the seat body 10 can be attached to the waist. However, there is no need to wear the attachment belt 20 from the tips of the feet and move it to the waist, and the attachment belt 20 can be attached directly to the waist.
It can be attached by wrapping it around it.

Also, if the seat body 10 has one attachment belt 20, it can be attached to the waist, but in order to make the attachment more secure and prevent it from slipping, two or more attachment belts 20 are provided to attach it to the waist. It can also be attached by winding it around two places, upper and lower.

The use of the portable chair 1 comprising the seat body 10, lid portion 10' and attachment belt 20 described above will be described. First, as shown in FIG. 3, the chair 1 is attached to the waist. If the attachment belt 20 is made of a continuous elastic belt, etc., insert the toes of the foot into the annular attachment belt 20 and slide it up to the waist. Installing. Also,
If the attachment belt 20 can be separated to the left and right, the attachment belt 20 may be directly wound around the waist and the engaging portion 22 may be engaged and fixed.

In addition, if the length of the attachment belt 20 is provided with an adjustable part 21, the length of the attachment belt 20 can be adjusted appropriately according to the thickness of the waist.

When the chair 1 is worn on the user's waist, the lid portion 10' on the upper surface of the seat body 10 is made to just abut against the buttocks of the user.

Next, when sitting down for agricultural work, etc., as shown in Figure 4, if you sit down with chair 1 attached to your waist, chair 1 will land naturally and be at an appropriate height that supports the user's buttocks. It can be used as a chair, making it easier to perform various agricultural tasks.

When shifting or moving the working position, the user only needs to raise his/her waist while wearing the chair 1, and there is no need to use the hands to move or lift the chair 1.

Next, the hollow part 11 of the seat body 10 can accommodate tools and small items used for agricultural work, and can be used as a kind of tool box. Also, when chair 1 is not in use,
The attachment belt 20 can also be folded and accommodated within the cavity 11.

In addition, the chair 1 of this invention is not only suitable for agricultural work.
It can be used to work in a low position at factories and construction sites, and can also be used to take breaks when waiting in line for long periods of time, such as when entering an amusement park or theater, or waiting for a train.

Effects According to the portable chair 1 of this invention constructed as described above, the block-shaped seat body 10 and lid part 10' are made of synthetic resin foam, so it is extremely lightweight and reduces the burden when carrying it. In addition to being inexpensive in terms of cost, the chair 1 has a good tactile feel and sufficient stability. In addition, foam has good heat insulation properties, so it has the advantage of keeping your waist and buttocks cool during cold seasons or outdoors, allowing you to perform various tasks comfortably.

Next, the seat body 10 is provided with an attachment belt 20 for mounting the seat body 10, and a lid portion 1 on the upper surface of the seat body 10 is provided.
0' is formed so that it can be worn on the user's waist with the belt in contact with the buttocks, and since the mounting belt 20 is suspended in the shape of a mountain in the cavity 11 inside the seat body 10, there is no frictional resistance. becomes larger, the attachment belt becomes more stable, and the seat 10 is less likely to shift position even when worn on the waist, and the chair 1 can be moved freely from one place to another while being worn on the waist, or can be stood up and moved. You can At this time, there is no need to lift or move the chair 1 with your hands, so you can move it quickly and easily to do agricultural work, etc. Moreover, both hands are completely free when moving, so you can continue working or hold tools etc. You can move freely even if you are left alone.

Furthermore, the seat body 10 has a cavity 11 formed therein, and this cavity 11 can be closed with a lid 10'. In addition, the objects stored in the hollow part 11 of the seat body 10 are pressed against the attachment belt 20 that passes through the upper part of the seat body, so that even if the chair 1 is moved while being attached to the waist, it will not be exposed. This makes it even more convenient to use and handle, as the stored items can be stored without moving around.

Therefore, it is possible to provide a portable chair with high practical value, which is highly effective in streamlining agricultural work and maintaining the health of workers.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the invention; FIG. 1 is a perspective view, FIG. 2 is a sectional view, FIG. 3 is a side view when installed, and FIG. 4 is a side view in use. 1...chair, 10...sitting body, 11...hollow part,
10'...Lid part, 20...Mounting belt, 12...
Rib wall, 13... recess, 14... mounting hole.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A block-shaped seat body each formed of synthetic resin foam, a lid portion that closes a cavity inside the seat body, and an attachment belt for attachment to the waist. The seat body is provided with a rib wall that partitions a cavity, a recess is formed at the upper end of this rib wall, and a side surface parallel to the rib wall of the seat body is provided with a rib wall that partitions a cavity. A mounting hole is formed through which the mounting belt is inserted, and this mounting hole is located below the recess in the rib wall, and the mounting belt is inserted from the mounting hole on one side of the seat body into the rib wall. A portable chair characterized in that the chair is suspended in a mountain shape through a recessed part to a mounting hole on the opposite side. 2. The portable chair according to claim 1, wherein the attachment belt is an elastic belt. 3. The portable chair according to claim 1 of the above-mentioned utility model registration, wherein the mounting belt has a removable engagement portion in the middle and is formed to be separable from side to side. 4. The portable chair according to claim 1 of the above-mentioned utility model registration, in which the mounting belt has an adjustment section whose length can be freely adjusted. 5. The portable device according to claim 1, wherein the synthetic resin foam forming the seat body and the lid is made of a resin foam in which at least a portion of a polyolefin resin and a polystyrene resin are graft-bonded. Chair.