JPH09187345A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair warmly usable in winter in a baseball ground and other sports facilities by installing a heater to a chair component formed of a seat body and a seat back body. SOLUTION: A heater 13 is laid on the hold surface 12 of a chair component such as a seat body 10 or seat back body, or the surface to support a sitting person. In order to prevent from the heater from a physical external force, moisture or ultraviolet ray, a cover body 14 is put on the hold surface 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair that can be suitably used for a grandstand or the like.

[0002]

2. Description of the Related Art As chairs for spectators installed in stadiums and other sports facilities, supports that also serve as legs and armrests are fixed at a predetermined interval, and a backrest is fixed between the backs of paired supports. In addition, it is known that a seat is installed between the middle steps of the support so as to be capable of a rising operation.

[0003] In this type of chair, the seat and the backrest, which are the constituent elements of the chair, are made of synthetic resin, and are often used without being equipped with cushions or upholstery cloth for reasons such as cleaning. .

[0004]

When such a chair is used in winter, it tends to give a seated person a cold feeling, and in particular, some chairs cannot withstand discomfort at the moment of sitting. In order to mitigate such problems, measures have been taken to strengthen the heating inside the stadium, etc., but for the heating inside the vast stadium, strong heating equipment is required and it will be installed outdoors. It is difficult to raise the ambient temperature in cases such as when installing in a skating rink.

Therefore, it is considered to install a heater at the bottom of the seat of each chair, but if the heater is installed at the bottom of the seat, the upper surface temperature of the seat supporting the occupant is maintained at an appropriate value. Difficult to do. In particular, when it is applied to a low-thermal-conductivity seat such as a hollow synthetic resin seat made by blow molding, it is difficult to control the temperature of the seat surface and sufficient heating is required. There is a problem in that a heater having a relatively large capacity is required to perform the operation.

[0006]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention has a heater attached to a hold surface of a chair component such as a seat body or a backrest body, that is, a surface to support a seated person. I have set up. Then, in order to protect the heater from physical external force, moisture, ultraviolet rays, etc., a cover body is attached to the hold surface.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The chair according to the present invention is used, for example, as a grandstand, and is composed of a synthetic resin chair component in the form of a hollow body made by blow molding and the like. It is provided with a sheet-like heater attached to a hold surface to support a seated person, and a cover body which covers the heater and covers the hold surface of the chair component.

The chair component to which the heater is attached is the seat body, the backrest body, or both.

In order to perform stable temperature control and prevent low-temperature burns, it is desirable to use a saturated heater as a heater that converges to a predetermined low temperature. In order to achieve both the feeling at the moment of sitting and the comfort during sitting, it is good to have a high / low switching means that increases the amount of heat generated by the heater when not seated and reduces the amount of heat generated by the heater when seated. .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, this chair 1 has a plurality of support bodies 2 also serving as legs and armrests fixed to a standing surface 3 of a tiered floor of a stadium or the like at a predetermined interval so that the support bodies 2 adjacent to each other on the left and right sides are A backrest 4 is fixed between the back portions, and a seat 6 is erected between the middle steps of the support body 2 via a shaft 5 so as to be capable of a rising operation.

The support 2 is made of, for example, aluminum die-cast with its lower end fixed to the raised surface 3 of the raised floor with bolts 7, and its upper edge is an armrest 2a. A backrest mounting portion 2b is integrally formed on the back portion of the support body 2, and the backrest 4 is fixed to the backrest mounting portion 2b by using bolts or the like. At the middle position of the support body 2, the shaft mounting portion 2
c and upper and lower stoppers 8 and 9 are provided.

The backrest 4 is made of a hollow synthetic resin and is made, for example, by a blow molding method using a high density polyethylene resin.

As shown in FIG. 4, the seat 6 includes a seat body 10 and
Brackets 11 attached to the left and right sides of the base end portion 10a of the seat body 10, and the hold surface 1 of the seat body 10.
2 is provided with a heater 13 and a cover body 14 that covers the heater 13 and covers the holding surface 12, and the shaft 5 protrudes outward from the left and right brackets 11. It is pivotally supported by Rising. That is, both ends of the shaft 5 are attached to the shaft mounting portion 2 of the support body 2.
The seat 6 is supported by c, and the front end side of the seat 6 can be vertically rotated about the shaft 5. An elastically deformable cushioning member 15 is attached to the projection 11a protruding from the bracket 11.
Can be selectively abutted against the upper stopper 8 and the lower stopper 9 provided on the support 2. And this seat 6
Is urged to rotate in the standing direction by a spring (not shown). Therefore, the seat 6 is automatically moved from the use position P where the cushioning member 15 abuts and locks the upper stopper 8 to the standing position Q where the cushioning member 15 abuts and locks the lower stopper 9. It is configured to perform a rising operation. Further, similarly to the conventional one, the cushioning member 15 is
It is a relatively large deformable hollow member, and it is also possible to temporarily retract the seat 6 from the standing position Q in the four directions of the backrest while deforming the cushioning member 15.

As shown in FIGS. 4 and 5, the seat body 10 is made of hollow synthetic resin and is made by, for example, a blow molding method using a high density polyethylene resin. A shallow recessed region 16 is formed on the hold surface 12 of the seat body 10, and the heater 13 is attached to the recessed region 16.

As shown in the rear surface of FIG. 6, the heater 13 has a planar base material 17, a heating element 18, 19, 20,
28 and 29 are meandered and attached, and the first thermostat 21 is provided at the site corresponding to the hips,
The second thermostat 22 is arranged at a site corresponding to the thigh. The heating elements 18, 19, 20, 28, 29 and the first and second thermostats 21, 22 are connected as shown in the wiring diagram of FIG. 7. That is, the wiring extending from the first terminal 23 is connected to the first thermostat 21 and
The heat generating circuit 24 constituting the high / low switching means and the heat generating element 18 are connected in series and connected to the second terminal 25. The heating circuit 24 is connected in parallel to the first
A circuit 26 and a second circuit 27, the first circuit 26 further comprises heating elements 19 and 28 connected in series, and the second circuit 27 comprises a heating element 2 connected in series.
0, a second thermostat 22, and a heating element 29. A branch wiring 33 of a wiring code 30 for energization is connected to both terminals 23 and 25.

The wiring cord 30 for energizing passes through the conduit 31 located under the seat 6 and branches in the joint box 32 attached to the support body 2 to form a branch wiring 33. From the tube 34 that leads into the support body 2 and projects from the lower end of the support body 2 to the middle step portion, the hold surface 12 of the seat body 10 is
The branch wiring 33 is connected to the heater 13 attached to the. The tip of the pipe 34 is made of a protective deformable tube 35 that covers the periphery of the branch wiring 33, and when the seat 6 moves from the use position P to the standing position Q, the branch wiring 33 is correspondingly moved. The protecting tube 35 is deformed and is adapted to move along the seat 6.

Next, the operation of this embodiment will be described. When not seated, the heating element 1 attached to the heater 13
Current flows through all of 8, 19, 20, 28, and 29 to increase the amount of heat generation and warm the seat 6. The second thermostat 2 that senses an increase in temperature when seated
2 is automatically switched to the non-energized state, current stops flowing in the second circuit 27, and heat generation from the heating elements 20 and 29 is stopped. Only the heating elements 18, 19, 28 are energized,
The calorific value is reduced, and the temperature is adjusted to an appropriate temperature. The heater 13 employs a saturation formula that converges to a predetermined low temperature to prevent the temperature from rising too high. When an accident occurs and the temperature rises abnormally, the first thermostat 21 senses the high temperature and automatically switches to the non-energized state. First thermostat 2
When 1 is switched to the non-energized state, no current flows in all the circuits, and all the heating elements 18, 19, 20, 28, 29 stop their operation and stop the rise in temperature.

The chair component is not limited to the seat body, but may be the backrest body. That is, in this case,
Attach a heater to the hold surface (front surface) of the backrest body,
A cover body is attached to the front surface of the backrest body so as to cover the heater.

The heater is of course not limited to that of the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0020]

As described above in detail, according to the present invention, since the heater is attached to the chair constituent element including the seat body and the backrest body, the heater is warmly watched when it is used in winter in a stadium or other sports facilities. Can provide seats. In particular, in the present invention, since the heater is attached to the side of the holding surface of the synthetic resin chair component having a hollow body with high heat insulation, a relatively small capacity heater is used. It is possible to exert a sufficient heat retaining effect, and temperature control and the like can be appropriately performed. Therefore, it is easy to maintain a comfortable temperature in the vicinity of the hold surface, and it is suitable for use in places where it is difficult to heat the inside of the room such as outdoors and large facilities.

Moreover, in the present invention, since the cover body is attached to the hold surface of the chair component so as to cover the heater, the heater is not physically exposed to external force, moisture or moisture. Can protect from ultraviolet rays. Therefore, heat
Since it is arranged on the cold side, there is no problem such as deterioration of durability.

If the heater is of a saturated type so as to converge to a predetermined low temperature, stable temperature control can be performed and low temperature burns can be prevented. When equipped with a high / low switching means that increases the amount of heat generated by the heater when not seated and reduces the amount of heat generated by the heater when seated, both the feel at the moment of seating and the comfort while seated You can

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of the present invention.

FIG. 2 is a plan view showing the same embodiment.

FIG. 3 is a front view showing the same embodiment.

FIG. 4 is an exemplary exploded perspective view showing a main part of the embodiment;

FIG. 5 is a sectional view showing a main part of the embodiment.

FIG. 6 is a rear view showing the main part of the embodiment.

FIG. 7 is a wiring diagram showing a main part of the embodiment.

[Explanation of Codes] 1 ... Chair 4 ... Backrest 6 ... Seat 10 ... Seat body 12 ... Hold surface 13 ... Heater 14 ... Cover body 24 ... High / low switching means (heating circuit)

Claims (5)

[Claims] 1. A chair component made of hollow synthetic resin, a sheet-like heater attached to a hold surface of the chair component for supporting a seated person, and the heater covering the heater. A chair comprising: a cover body that covers a hold surface of a chair component. 2. A chair according to claim 1, wherein the chair component is a seat body. 3. A chair according to claim 1 or 2, wherein the chair component is a backrest body. 4. The chair according to claim 1, 2 or 3, wherein the heater is a saturated type heater configured to converge to a predetermined low temperature. 5. A high temperature control device that increases the amount of heat generated by the heater when not seated and reduces the amount of heat generated by the heater when seated.
The chair according to claim 1, 2, 3 or 4, further comprising low switching means.