JPS6245430Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a seat heater for a vehicle, which is disposed between the outer skin and the main pad of a seat of an automobile or the like to heat the seat.

Conventional seat heaters are installed in vehicle seats as shown in FIG.
That is, a seat heater is provided in each of the seat portion 1a and the backrest portion 1b of the vehicle seat 1. As shown in Fig. 2, the seat heater 2 is composed of a flexible support 3 formed by bonding together a plurality of layers of a fiber fabric body 3a, and an electric heating wire 4 disposed in a serpentine shape between the layers of the flexible support 3, and a space 6 having a space A sufficient to surround a hanging belt 5 shown in Fig. 3 is provided in the approximate center of the flexible support 3, and furthermore, a plurality of insertion holes 8 are provided in the space 6 for inserting the hook clip 7 shown in Fig. 3 therethrough.
The heating wire 4 is formed into two zones, a front portion 4a and a rear portion 4b, and the front portion 4a and the rear portion 4b are connected to each other by a middle portion 4c.

FIG. 3 shows a state in which the conventional seat heater 2 is attached to a seat, and the sling 5 is sewn to the skin 9 of the seat 1. Reference numeral 10 denotes a main pad of the seat 1. A suspension groove 11 is formed in the main pad 10, and a retaining wire 12 is buried below the suspension groove 11.
Reference numeral 13 denotes a hanging wire inserted through the sling 5, and the above-mentioned latching clip 7 is inserted into this hanging wire 13. When installing the seat heater 2 on the main pad 10, first install the main pad 10.
The seat heater 2 is placed on top of the suspension wire 13 of the suspension strap 5 sewn to the outer skin portion 9.
When the latching clip 7 is inserted into the main pad 1, the latching clip 7 is inserted into the insertion hole 8 of the seat heater 2, and pushed along the hanging groove 11 of the main pad 10.
It is hooked to the stop wire 12 of 0. In this installation process, the gap part 6 of the seat heater 2 is connected to the sling 5.
Since the seat heater 2 is drawn in a U-shape along the seat heater 2, both the front 4a and rear 4b zones of the seat heater 2 are fixed in close contact with the skin 9 of the main pad 10.

As mentioned above, conventionally, the seat heater 2 can be installed in close contact between the main pad 10 and the skin part 9, so that adjacent heating wires 4 do not come close to each other or overlap. do not have. However, in the conventional configuration, the intermediate portion 4c of the heating wire 4 disposed in the interval portion 6 located approximately at the center of the flexible support 3 is located within the hanging groove 11; The heat generated in the intermediate portion 4c hardly contributes to the heating of the seat 1, and has the problem of causing a localized temperature rise.

Furthermore, it is essential to provide a temperature control means for this type of seat heater. There are two methods for this: a thermostat detection method in which a thermostat is installed in a portion representing the heat generating part, and a thermostat detection method in which a temperature detection wire is provided close to the entire length of the heating wire 4. There is,
The latter can provide excellent control functions, but in the conventional seat heater described above, the middle part 4 of the heating wire 4
Since c is a configuration that causes local temperature over-rise,
There was a problem in that the latter method of detecting the temperature of the entire surface of the heating wire could not be adopted.

Purpose of the invention This invention solves the above-mentioned conventional problems.
The seat heater can be installed in close contact between the seat skin and the main pad, and all of the heat generating parts of the seat heater are located within the close contact surface to provide effective heating effects. Another object of the present invention is to provide a seat heater for a vehicle that does not cause local temperature over-rise and can employ either a thermostat detection method or a heating wire whole surface temperature detection method as a temperature control means. .

Structure of the Invention In order to achieve the above object, the present invention has developed a sheet using a flexible support made by laminating multiple layers of fiber cloth, and heating wires disposed between the layers of the flexible support. A notch is made at approximately the center of the flexible support to form a through hole and a tongue piece through which a suspension strap that is secured to the suspension groove of the main pad of the seat passes through the flexible support. The hot wire is arranged in a meandering manner so as to bypass the through hole, and the sling is sewn to the tongue piece and is also passed through the through hole and sewn to the skin of the seat. According to this configuration, By locking the suspension strap to the suspension groove of the main pad of the seat, the seat heater is not drawn into the suspension groove, and the seat heater can be supported on the main pad in close contact with the skin. All the heat generated by the heating wires is quickly transferred to the skin of the seat, resulting in a heating effect that starts quickly and prevents adjacent heating wires from coming close to each other or overlapping. This prevents thermal damage to the heating wire and prevents local temperature over-rise.The temperature control means can either be a thermostat detection method or a heating wire entire surface temperature detection method. Furthermore, the seat heater can be prevented from sliding forward in the event of repeated vibrations and shocks while driving, thanks to the sewn tongues and slings, which has various practical effects. It is.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 4 shows a seat heater 14 according to an embodiment of the present invention. body 1
5 and a heating wire 16 disposed between the layers of FIG. forming a through hole 17 and a tongue piece 18;
Further, the heating wire 16 is arranged in a meandering manner so as to bypass the position through hole 17, forming two zones, a front part 16a and a rear part 16b, and the detour part 1
6c connects the front part 16a and the rear part 16b. 19 is a lead wire portion connected to the heating wire 16.

FIG. 6 shows the seat heater 14 installed on the seat 1', where 9' is the skin of the seat 1'. A sling 5' is sewn on. This sling 5' is connected to the seat heater 1.
It is also sewn to the tongue piece 18 of No. 4, and a hanging wire 13' is further inserted through this hanging band 5'. Reference numeral 10' denotes a main pad of the seat 1', and a hanging groove 11' is formed in this main pad 10', and a stop wire 12' is buried below the hanging groove 11'. 7' is a latching clip inserted into the hanging wire 13'. When installing the seat heater 14 on the main pad 10',
The retaining clip 7' of the suspension band 5', which is sewn through the through hole 17 of the seat heater 14 through the skin part 9', is connected to the retaining wire 12' buried below the suspension groove 11' of the main pad 10'. When the seat heater 14 is locked into the suspension groove 11', the seat heater 14 is not drawn into the suspension groove 11', and the seat heater 14 is connected to the skin part 9' and the main pad 1.
0'.

Next, the effects of the above embodiment will be explained. In the above-mentioned embodiment of the present invention, the seat heater 14 is not drawn into the hanging groove 11' and is installed closely between the skin portion 9' and the main pad 10', so that the heating wire 16 is not drawn into the suspension groove 11'. All of the heat is quickly transferred to the skin portion 9' of the seat 1', and as a result, a heating effect that starts quickly can be obtained. In addition, since adjacent heating wires 16 do not come close to each other, do not overlap, and do not cause local temperature over-rise, it is possible to prevent thermal damage to the heating wires 16 and to control the temperature. As the means, either a thermostat detection method or a heating wire whole surface temperature detection method can be adopted.

Furthermore, when the load of the occupant is applied to the seat and vibration shocks are repeated during driving, a force acts on the seat heater 14 to cause it to slide forward.
4 has a tongue piece 18 formed at a substantially central position, and a sling 5' is sewn to this tongue piece 18, so that the seat heater 14 can be reliably prevented from slipping.

Effects of the invention As described above, according to the invention, the sling that is secured to the sling groove of the main pad of the seat is sewn to the tongue piece, and the through hole is passed through and sewn to the skin of the seat. When the belt is fixed to the suspension groove of the main pad of the seat, the seat heater is not drawn into the suspension groove, and the seat heater can be supported on the main pad in close contact with the skin, reducing the generation of heating wires. All of the heat is quickly transferred to the skin of the seat, and as a result, it is possible to obtain a warming effect that starts up quickly. In addition, since adjacent heating wires do not come close to each other or overlap, and unlike conventional methods, there is no local temperature rise, it is possible to prevent thermal damage to the heating wires. As the temperature control means, either a thermostat detection method or a heating wire whole surface temperature detection method having an excellent control function can be adopted. Furthermore, the seat heater can be prevented from slipping forward in the event of repeated vibrations and shocks during driving because the tongues and slings are sewn together, providing various practical effects.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a vehicle seat equipped with a conventional seat heater, Figure 2 is a perspective view of a conventional seat heater, Figure 3 is a partial sectional view showing the seat heater installed on the seat, FIG. 4 is a perspective view of a seat heater showing an embodiment of the present invention, FIG. 5 is a sectional view of the seat heater, and FIG. 6 is a partial sectional view showing the seat heater attached to a seat. 1'...Seat, 5'...Sling strap, 7'...Locking clip, 9'...Skin part, 10'...Main pad, 11'...Hanging groove, 12'...Locking wire, 1
4...Seat heater, 15...Flexible support, 1
5a...Fiber cloth body, 16...Heating wire, 17...
Through hole, 18... tongue piece.

Claims (1)

[Scope of utility model registration request] The seat heater, which is disposed between the seat skin and the main pad, is made of a flexible support made of multiple layers of textile fabric bonded together, and an electric wire disposed between the layers of this flexible support. The flexible support is made of a hot wire, and the flexible support is cut approximately at the center to form a through hole and a tongue piece through which a suspension strap that is secured to the suspension groove of the main pad of the seat passes through. The heating wire is arranged in a meandering manner so as to bypass the through hole, and the hanging groove is sewn to the tongue piece, and the heating wire is sewn to the skin of the seat through the through hole.