Electric heating – Heating devices – Combined with diverse-type art device
Patent
1984-07-18
1986-12-30
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
219212, 219217, 219511, 219528, 337113, H05B 102, H05B 334, B60H 122
Patent
active
046330615
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a vehicle seat heater which is to be mounted on a seat cushion part and/or a seat back part of a vehicle seat.
BACKGROUND ART
In the conventional vehicle seat heater as shown in FIG. 1 and FIG. 2, seat heater main body 4 is constructed by wiring cord-shaped warming heater 2 in zig zag shape on substrate body 1 consisting of a polyester non-woven fabric, or the like, and by heat-press-bonding (or a similar process) surface cloth 3, which has a thermal fusing adhesive, on both sides of the substrate body 1. On one part of the seat heater main body 4, a thermostat 5 is mounted to directly sense the heat of the seat heater warming part 4'. Lead wires 6 are connected to the thermostat 5 and the above-mentioned warming heater 2, and connection plug 7 for connecting the vehicle seat heater to a power source (not shown) of an automobile. The above-mentioned seat heater main body 4 is, as shown in FIG. 3, mounted on a seat part 8a and a seat back part 8b of a vehicle seat 8. The above-mentioned mounting of the seat heater main body is made, as shown in FIG. 4, by inserting and disposing heater main body 4 between a pad 9 formed of foamed urethane and a cushion material 10 made of foamed urethane. Incidentally, numeral 11 is the surface leather of the vehicle seat.
In the above-mentioned configuration, however, since thermostat 5, which controls the flow of electricity to the heater 2 by detecting the temperature of the warming heater 2, is mounted on one part of the seat heater main body 4, and the seat heater main body 4 is mounted in the vehicle seat 8, the thermostat 5 causes a bump to be formed in the seat surface, and as a result, the user feels uncomfortable when sitting on the vehicle seat.
A solution has been proposed which mounts the thermostat in a part of the seat not touching the user, namely at the part where the seat cushion part 8a and the seat back part 8b are superposed, or mounting it between the legs of the user. However, these solutions require thermostat temperature settings unique to each vehicle seat shape, since heating characteristics vary depending on respective vehicle seat configurations due to the shape of the vehicle seat 8 and the shape and volume of the cushion material 10. Therefore, mounting the thermostat in such locations has been troublesome.
SUMMARY OF THE INVENTION
In view of the above-mentioned problems, the present invention provides a vehicle seat heater which has no uncomfortable feeling when the user is seated on the seat, and is capable of stably controlling the warming heater independent of the shape and construction of the vehicle seat. In order to achieve this purpose, the present invention covers the control part, the auxiliary heater and the thermostat with heat insulation material, and also disposes the control part separate from the seat heater main body and at a location other than the seat cushion part and seat back part of the vehicle seat. By this configuration, there is no uncomfortable feeling when the user is seated on the vehicle seat. Since the control part is not positioned in the vehicle seat, there is no need to temperature set the control part to take into account variations in the shapes of vehicle seats.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing the conventional seat heater for vehicle,
FIG. 2 is a cross-sectional view taken along line 2--2 of FIG. 1,
FIG. 3 is a perspective view of the vehicle seat provided with the seat heater of FIG. 1,
FIG. 4 is a cross-sectional view taken along line 4--4 of FIG. 3,
FIG. 5 is an exploded perspective view of a vehicle seat heater showing one embodiment of the present invention,
FIG. 6 is a perspective view of a control part in the seat heater of FIG. 5,
FIG. 7 is a cross-sectional view of the control part of FIG. 6 taken along line 7--7 of FIG. 6.,
FIG. 8 is a circuit diagram of the seat heater of FIG. 5,
FIG. 9 is a temperature vs. time characteristic chart of the seat heater of FIG. 5,
FIG. 10 is an exploded perspective view of th
REFERENCES:
patent: 1074215 (1913-09-01), Schuirmann
patent: 1522122 (1925-01-01), Heidbrink et al.
patent: 1610915 (1926-12-01), Allen
patent: 1689004 (1928-10-01), Ackley
patent: 2520851 (1950-08-01), Myers et al.
patent: 2537376 (1951-01-01), Smith
patent: 3096424 (1963-07-01), Cecchini
patent: 4335725 (1982-06-01), Geldmacher
Bartis A.
Matsushita Electric - Industrial Co., Ltd.
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