JPH073961Y2 - Chair leg device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a footrest device for a movable rotating chair (the same applies to a movable fixed chair) which is mainly used in amusement halls such as pachinko parlors and simple dining rooms. Is.

[0002]

2. Description of the Related Art Conventionally, as a leg seat device of a rotary chair of this type, which is of a moving type (hereinafter referred to as a rotary chair), one having a structure in which a rubber ring is fitted to a disc-shaped leg seat is used. is there.

The rotating chair with the rubber ring fitting structure is
It is useful because it has the same effect even if it does not slip and the floor surface becomes a tile, and it does not generate noise when the swivel chair moves.

In particular, in recent years, a tiled floor surface (however, including a floor surface of the same material or the same property) has been increasing in number, which is very useful.

[0005]

However, since this rubber ring is weak in terms of pulling or friction,
Elastic fatigue occurs at a relatively early stage, and it often falls out of the leg seat.

In particular, as described above, when it is used for a tiled floor surface, the abrasion due to the movement of the rotating chair is fast, and its improvement is strongly desired.

[0007]

SUMMARY OF THE INVENTION Therefore, the present invention is to provide wear resistance to a tiled floor surface, to endure long-term use, and to prevent it from coming off from a disc-shaped leg seat. The following structure is adopted for the purpose of making it a plastic buffer plate that can be attached to the seat with one touch.

[0008] That is, the seating device for a swivel chair according to the present invention comprises a disc-shaped seating member, a supporting member standing upright from the supporting member, and a seat member provided at the upper end of the supporting member. A chair, a spring-shaped pawl that is locked to an inner end portion of a leg seat of the swivel chair, and a circular plastic buffer plate that is provided with the spring pawl and covers at least a landing portion of the leg seat. It consists of and.

[0009]

Next, the use state of the present invention will be described. In the landing portion forming the leg seat of the swivel chair,
A bending process is performed to form a ring-shaped landing folding edge having a partial cutout portion.

A plurality of spring claws made of a plastic cushioning plate (a plastic material does not matter) are engaged toward the edge of the landing bent edge, one by one, and the tip of each spring claw is It press-fits in the notch of the said landing bending edge.

By repeating the engagement of the spring claws and the press-fitting of the toes of the spring claws, at least the landing portion of the leg seat is covered with the plastic cushion plate.

In the present invention, since the entire leg seat is covered,
In order to reduce wear on the tiled floor surface, etc., the center part of the plastic cushioning plate is recessed.

As described above, in the swivel chair of the present invention, since at least the landing portion of the leg seat is covered with the plastic cushioning plate, the swivel chair does not slip or moves smoothly, or moves. There is almost no noise during the operation.

In particular, according to the present invention, the plastic cushioning plate is provided on the leg seat through the engagement and press fitting of the spring claws and the toes, so that the plastic cushion plate is inadvertently removed from the leg seat. It's not there and is very useful.

Of course, if the engagement and press-fitting are released, the plastic cushion plate can be removed from the leg seat.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a swivel chair, 2 denotes its seat (seat portion), 3 denotes its support (expandable, pipe member, and other members) 4 denotes its leg seat.

In this example, the leg seat 4 has a flat conical shape (not limited), and the landing portion 14 thereof.
Is subjected to a bending process (bending drawing process) toward the inner side to form a ring-shaped landing folding edge 1114 having a partial notch 114 (not limited to the above configuration. ).

In the figure, reference numeral 5 denotes a plastic cushioning plate, and a plurality of spring claws 1115 having a toe 115 whose radial toe side is located in the radial direction are provided on the landing portion 15 (peripheral portion) of the plastic cushioning plate 5. Individually set up.

Further, the landing portion 1 of the plastic buffer plate 5
5 is provided with a recess 15a to reduce the frictional resistance with the tiled floor surface.

The shape of the plastic cushioning plate 5 is not limited to the above-mentioned example, but may be other shapes such as a hole with a central hole, a deformed ring shape, etc. In short, the spring claw 1115 is provided in a line,
In addition, any structure is possible as long as the landing portion 15 is provided.

After the plastic cushioning plate 5 configured as described above is brought into contact with the bottom surface side of the leg seat 4, the toes 115 of one or several spring claws 1115 are attached to the bent-down ends for landing. It is press-fitted into the notch 114 of the edge 1114, and the landing bent edge 1114 is sandwiched between the landing section 15 of the plastic cushioning plate 5 and the toe 115.

Thereafter, the toes 115 of the other spring claws 1115 are press-fitted into the notches 114 by the same operation and procedure in sequence, so that the bottom surface of the leg seat 4 is
A plastic buffer plate 5 is attached.

Therefore, the plastic cushion plate 5 is in contact with the tiled floor surface.

To remove the plastic cushioning plate 5, for example, the tip of the screwdriver is attached to the floor bending edge 11
The engagement and press-fitting relationship can be released by inserting it into the gap between 14 and the landing portion 15 and twisting it slightly.

Therefore, by repeating the above operation and procedure, the plastic buffer plate 5 can be removed.
Or it can be removed for replacement.

[0027]

As described in detail above, according to the present invention, a landing bent edge is formed on the inner end of the seat of the swivel chair, and a spring claw that is locked to the landed bent edge is provided. A plastic cushioning plate is attached via the above structure, and has the following effects.

(1) Even on a tiled floor surface, etc., it does not slip and no noise is generated.

(2) It is safe that the plastic cushioning plate is extremely unlikely to come off.

(3) The plastic buffer plate has very little wear and can be used for a long period of time.

Since the plastic cushioning plate of the present invention is constructed so as to be provided with the landing portion, the following effects can be obtained.

(4) The contact area with the tiled floor surface is reduced, and the movement is smooth.

Further, according to the present invention, since a plurality of spring claws having spring characteristics are provided on the plastic cushioning plate, the following effects can be obtained.

(5) The plastic cushioning plate is firmly attached to the leg seat.

(6) The plastic cushion plate can be easily attached and detached.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a swivel chair.

FIG. 2 is an enlarged cross-sectional view showing a relationship between a leg seat and a plastic cushioning plate.

FIG. 3 is an overall perspective view of a plastic cushioning plate.

FIG. 4 is an end view of a main part of a plastic buffer plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 swivel chair 2 seat body 3 support | pillar 4 leg seat 14 flooring part 114 notch part 1114 flooring bent edge 5 plastic buffer plate 15 flooring part 15a recess 115 toe 1115 spring claw

Claims (2)

[Scope of utility model registration request] 1. A chair comprising a disc-shaped leg seat, a pillar standing upright from the leg seat, and a seat body provided at an upper end of the pillar, the interior of the leg seat of the chair. A seat leg device for a chair, comprising: a spring pawl that is locked to an end portion; and a circular plastic cushioning plate that is provided with the spring pawl and that covers at least the landing portion of the leg seat. 2. The seating device for a chair according to claim 1, wherein a central portion of the circular cushioning plate of claim 1 is recessed to form a donut-shaped landing portion.