JPS6114835Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a portable chair.

Conventionally, as a portable chair, as shown in Fig. 1,
Three supporting frames 2 each having a cutout at the bottom of the side bottom of a vertical channel are rotated in turn in one direction with each open side thereof being rotated 120 degrees each other.
° Focusing to pivot to form a pedestal support 1,
The lower part of the upper pedestal 3 is fitted into each support frame 2 of the support body 1 and is pivoted so as to be tiltable at a certain angle, and the lower pedestal 4 whose upper end is fitted into the lower part of the upper pedestal 3 is attached. , which is pivoted coaxially with the upper pedestal 3 so that it can be rotated from the phase projected linearly below the upper pedestal and stored within the upper pedestal 3, and a seat cloth is tied to the upper end of the upper pedestal. there is.

However, in the chair with the above configuration, since the contact point between the support frame 2 forming the leg support 1 and the upper leg post 3 is in line contact, the weight is applied to the contact area, deforming the support frame 2, and causing The disadvantage is that the chair may break depending on the situation. Moreover, since each of the support frames 2 and the upper pillars 3 have a rectangular structure, when folded and stored, they become bulky and are inconvenient to handle. In addition, since each support frame 2 is connected to each other by screws, when a load is applied, there is a twisting effect in the direction of inclination of the pillar, which has the disadvantage that there is a risk of the chair being crushed, making it unusable. .

The present invention has been made to eliminate the above-mentioned drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

As shown in Fig. 2, grooves 5 are formed on the cylindrical surface of a cylindrical member made of iron, light alloy (aluminum, etc.) or synthetic resin, parallel to the axis of the cylindrical member and at equal intervals. Diagonal grooves 6 are provided at three locations, and diagonal grooves 6 that cross the groove 5 and have substantially the same depth as the groove are carved in the same direction and at the same angle so that the respective diagonal grooves 6 do not overlap. A pedestal support 7 is formed. As shown in FIG. 3, the pedestal support 7 is slidably inserted into a hollow main column 8 made of lightweight material such as stainless steel or aluminum, and the main column is inserted above the pedestal support 7. A triangular reinforcing rod support member 10 having the same or similar shape to the equilateral triangle formed by the bottom 9 of the groove 5 provided in the pillar support 7 is fixed to the end of the rod support 8 .

Respective grooves 5 provided in the pillar support 7
A hollow pedestal 11 made of a lightweight member made of stainless steel, aluminum alloy, etc. and having a semi-circular cross-section is installed so that the flat part 12 of the semi-circular pedestal faces the bottom part 9 of the groove 5. The reinforcing rod support member 10 arranged on the upper part of the pedestal support 7 and the pedestal 11 are connected by a reinforcing rod 13 to form a tripod. still,
The reinforcing rod 13 is rotatably attached to the reinforcing rod support member 10 and the pillar 11, respectively.

In addition, if necessary, a retaining ring 16 is attached to the main pillar 8 below the pedestal support 7 with a screw or the like so that the position can be adjusted, and when a load is applied to the pedestal 11, the retaining ring 16 to receive a portion of the

A portable chair is formed by removably attaching the seat cover 14 to the upper end of the pedestal of the tripod constructed as described above. Next, how the chair of the present invention is used will be explained.

When not in use, the pedestal 11 is placed upright in the groove 5 provided in the pedestal support 7, and the seat cover 14 is inserted and stored between the three pedestals 11. Since the seat cover 14 is made of flexible leather, synthetic leather, vinyl, or cloth, the protruding portion can be wrapped around the pillar and fastened with a fastening band 15 provided on a part of the seat cover. It can be stored in a small volume. In addition, when in use, the chair can be turned into a chair simply by removing the retaining band 15 and tilting the pillars 11 to unfold them. In this case, the pedestal falls down at a preset angle of the diagonal groove 6 provided in the pedestal support 7, and the pedestal 11 contacts the wall of the diagonal groove 6, ensuring that this state is ensured. .

Since the portable chair according to the present invention has the above-mentioned configuration, even when the legs are expanded and the seat is sat down, the legs can be received in surface contact with the wall of the diagonal groove of the leg support. Since the pedestal support is made of one piece, there is no chance of the pedestal spreading out too much or damaging the pedestal, causing the chair to break. Moreover, the main column and the pedestal are made of hollow, lightweight members. As a result, the entire device is lightweight and easy to carry. In addition, the pedestal has a semi-circular cross-section and is assembled so that the bottom of the concave groove of the pedestal support and the flat surface of the pedestal face each other, so when the pedestal is housed, the overall shape becomes cylindrical, making it easy to handle. becomes easier. Furthermore, each part is of great practical value as it is not damaged by being hung on the legs and has a remarkable effect on durability.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional portable chair; Figure 2 is a perspective view of a conventional portable chair;
The figures show a leg support in a portable chair of the present invention, A is a plan view, B is a front view, FIG. 3 is an embodiment of the portable chair of the present invention, A is a perspective view thereof,
B is a sectional view taken along the line X-Y in A. 1, 7... pedestal support, 2... support frame, 3, 4,
11... Pillar, 5... Concave groove, 6... Diagonal groove, 8...
Main pillar, 9...bottom of groove, 10...reinforcement rod support member, 12...plane part of pillar, 13...reinforcement rod, 1
4...Seat skin, 15...Retaining band, 16...Retaining ring.

Claims (1)

[Scope of utility model registration request] Three grooves are provided on the cylindrical surface of the cylindrical member at equal intervals and parallel to the axis of the cylindrical member, and diagonal grooves are cut in the same direction to cross the grooves and have the same depth as the grooves. The pedestal support formed by the pedestal support is slidably inserted into the main column, and the bottom of each groove provided in the pedestal support is extended at the end of the main column above the pedestal support. A triangular reinforcing rod support member having the same or similar shape to the triangle to be constructed is fixed, and a hollow pedestal having a semicircular cross section is inserted into each groove of the pedestal support. The flat part of the pedestal is tiltably pivoted to face the bottom of the groove, the reinforcing rod is connected between the reinforcing rod support member and the pedestal, and a seat skin is freely attachable and detachable to the upper end of the pedestal. A portable chair that can be attached to.