JP2947329B2 - Seat heating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating device for a seat installed under a seat of a train or the like, which is capable of improving safety and easily performing internal checks and operations at the time of inspection and repair. The present invention relates to a heating device for a seat that can be used.

[0002]

2. Description of the Related Art Generally, a seat heating device is provided on a seat of a train or the like. FIG. 3 is a cross-sectional view in the lateral direction of a conventional seat heating device.
In the figure, reference numeral 1 denotes a seat, and 1a denotes a seat portion.
Reference numeral 2 denotes a heating element located below the seat 1, and a holder 3
And it is attached to the heating element supporting part 5 by a set screw 4.

An L-shaped case 6 covers an upper portion and a rear portion of the heat generating element 2. The case 6 has a flat upper surface plate 6a attached to a lower surface of the seat 1a by a support member 7; Rear plate 6 formed at the rear end of upper plate 6a
b. Here, the upper surface plate 6a functions as a reflecting plate that reflects the radiant heat from the heating element 2 downward. The heating element supporting part 5 is screwed to the case 6
It is fixed to.

[0004] A cover 9 covers the front side and the lower side of the case 6.
The hinge 6 is attached to the lower end of the rear plate 6b, and the distal end is attached to the distal end of the upper plate 6a of the case 6 by screws 11. Here, a large number of holes are formed in the cover 9, and among these holes, the hole located on the front side functions as a hot air outflow hole 12 through which the hot air from the heating element 2 flows out. The hole located is the heating element 2
It functions as the air inflow holes 13 that flow toward the air. Reference numeral 14 denotes a floor surface of the vehicle body.

[0005] The prior art seat heating apparatus is constructed as described above, and its operation will be described below. Thus, during operation of the heating device, radiant heat from the heating element 2 is reflected directly from the heating element 2 or by the upper surface plate 6a, and the hot air outflow holes 12 and the air inflow holes 1 of the cover 9 are formed.
3 is radiated to the indoor side, or hits the cover 9,
The indoor side is heated by radiation or convection from the cover 9. On the other hand, the convection of air is caused by the air inlet 1 on the lower surface side of the cover 9.
3 and flows out from the hot air outlet hole 12 on the front side as shown by the arrow A.

[0006] The pre-season inspection of the heating system,
The screw 11 is removed, the cover 9 is pivoted downward around the hinge 10 to expose the inside downward, and confirmation is performed. When the heating element 2 is to be replaced, the intended work is performed by loosening or tightening the screw 4 from below.

[0007]

Since the conventional heating apparatus is constructed as described above, the first problem is that the safety during operation of the heating apparatus is insufficient. . That is, if the screw 11 is not sufficiently tightened after the inspection, the screw 11 may fall off during operation, and the cover 9 may rotate downward by its own weight and open. Further, since the screw 11 can be easily touched from the periphery of the seat 1, the screw 11 may be loosened due to mischief of a passenger during operation of the heating device, and the cover 9 may be opened. As described above, when the cover 9 is opened during operation of the heating device, combustibles enter the heating device and come into contact with the high-temperature heating element, or the human body erroneously contacts the high-temperature heating element 2 or the charging section. Therefore, the safety against fires, burns, electric shocks, etc., was still insufficient.

A second problem is that the workability of the inspection work is poor. That is, the height of the seat 1 is about 40 to 50 cm with respect to the floor surface 14. Therefore, not only the inspection with the heating element 2 attached, but also the work when attaching and detaching the heating element 2 from the seat 1 is performed. Is the floor 1
Since it was necessary to lower the face close to No. 4, an unnatural posture was forced, and work was extremely difficult. Also,
When the screw 4 is loosened or tightened to replace the heating element 2, it is necessary to support the heating element 2 and the holder 3 against the weight of the heating element 2 and the holder 3 while supporting the heating element 2 and the holder 3. It was difficult and required two people. Also, when removing or attaching the cover 9, the screws 11 must be loosened or tightened while supporting the cover 9 against the weight of the cover 9, which also requires two people. there were.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a safe structure in which the inside is not easily exposed when unnecessary. An object of the present invention is to provide a heating device for a seat that can be easily performed and can be easily performed.

[0010]

According to the present invention, there is provided a heating apparatus for a seat according to the present invention, comprising: a front plate facing a front portion of the heating element; a lower plate extending rearward from a lower end of the front plate; A lower case extending upward from the rear end and having an upper end extending to substantially the same position as the upper end of the front plate, and a lower case covering the upper portion of the heating element and radiating heat from the heating element downward. The heating element is mounted in the lower case covering a lower portion of the heating element, and the upper case is mounted on a lower surface of a seat seat portion; Is removed so that the upper case is simultaneously removed to expose the inside of the lower case to the outside.

Further, the upper case is configured to be closely attached to the lower surface of the seat so as to be substantially integrated with the outer shape of the seat.

[0012]

According to the heating device for a seat of the present invention, when the seat is in a seatable state, the upper case covers the upper part of the lower case, and when the seat is removed, the upper case is removed. At the same time, it is removed and the inside of the lower case is exposed to the outside, so that the inside can be inspected from above.

Further, since the upper case is attached in close contact with the lower surface of the seat portion, the upper case can be made small, and a lightweight upper case integrated with the seat portion can be formed.

[0014]

[Embodiment 1] Hereinafter, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a lateral sectional view of a seat heating apparatus according to the present invention. It is to be noted that the same components as those of the conventional art are denoted by the same reference numerals, and description thereof will be omitted. 15 is a heating element 2
A lower case 15 covering a front part, a lower part, and a rear part of the heating element 2.
Lower plate 15 extending rearward from the lower end of front plate 15a
b and a rear plate 15c extending upward from the rear end of the lower plate 15b. Note that a support (not shown) is attached to the lower case 15 and is attached to a leg (not shown) of the seat 1 with screws (not shown).

The lower case 15 has a number of holes formed therein, and among these holes, the front plate 1 of the lower case 15 is formed.
The hole on the 5a side functions as a hot air outflow hole 18 through which hot air flows out of the heating element 2, and the hole on the lower surface plate 15b side of the lower case 15 is an air inflow hole for air flowing toward the heating element 2. It functions as 19.

Numeral 28 denotes an upper case which covers the upper part of the heating element 2, and the upper case 28 is attached to the lower surface of the seat 1a by a support 29. Further, the upper case 28 has a function as a reflector that reflects the radiant heat of the heating element 2 downward. The upper case 28 is located at a predetermined location above the lower case 15 when the seat 1a is installed in a normal sitting state.

The heating device for a seat according to the first embodiment of the present invention is configured as described above, and the operation thereof will be described below. The basic operation related to heating is the same as that of the heating device for a seat according to the prior art. Therefore, the description is omitted. At the time of the pre-season inspection of the heating device, the upper seat 28 is rotated by removing the seat 1a of the seat 1 from the legs (not shown) as shown by a two-dot chain line in FIG.
Are separated from the lower case 15, the inside of the lower case 15 is exposed to the outside, and the entire inside can be visually recognized. Note that when the seat 1a is installed in a normal sitting state, the upper case 28 is always located at a predetermined position above the lower case 15, so that the inside of the lower case 15 is not exposed. .

When removing the heating element 2 for repair or the like, following the above operation, loosen the screw 4 from above, remove the holder 3 upward, and remove the heating element 2 upward from the heating element supporting part 5. Can be. When the heating element 2 is mounted, the lower case 1
5 can be easily performed from above.

Embodiment 2 FIG. FIG. 2 is a lateral sectional view of a seat heating apparatus according to a second embodiment of the present invention. In the figure, the same components as those of the prior art and the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 30 denotes an upper case that covers the upper side of the heating element 2, and the upper case 30 is attached in close contact with the lower surface of the seat 1a. There is no support for attachment between the upper case 30 and the lower surface of the seat 1a. The upper case 30 is located at a predetermined location above the lower case 15 when the seat 1a is installed in a normal sitting state.

The heating device for a seat according to the second embodiment of the present invention is configured as described above. The operation of the heating device will be described below. It is omitted because it is the same as the heating device for use. At the time of the inspection of the heating device before the season, the upper seat 30 is rotated by removing the seat 1a of the seat 1 from a leg (not shown) as shown by a two-dot chain line in FIG. Is separated from the lower case 15, the inside of the lower case 15 is exposed to the outside, and the entire inside can be visually recognized.
It should be noted that the upper case 30 is always in the lower case 15 when the seat portion 1a is installed in a normal seatable state.
Is located at a predetermined position above the lower case 15, so that the inside of the lower case 15 is not exposed.

[0021]

As described above, according to the present invention, the front plate facing the front portion of the heating element, the lower plate extending rearward from the lower end of the front plate, and the rear plate extending from the rear end of the lower plate. A lower case extending upward and having a rear end plate having an upper end extending to substantially the same position as the upper end of the front plate; and an upper portion covering an upper portion of the heat generator and reflecting downward radiant heat from the heat generator. The upper case is separated from the lower case at the same time when the seat is removed from the lower case, so that the interior of the lower case is exposed to the outside. When it is possible, the upper part of the lower case is surely covered and the inside of the lower case is not exposed, so that the safety is greatly improved. In addition, the operation when exposing the inside of the lower case may be performed by removing the seat and the seat, and the operator does not need to lower his / her face near the floor, so that the operator is not forced to take an unnatural posture, and Work by one person becomes possible, and workability is improved.

Further, the upper case is mounted in close contact with the lower surface of the seat, and is configured to be substantially integrated with the outer shape of the seat. Therefore, the upper case can be made small and lightweight. It can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a lateral cross-sectional view of a seat heating apparatus according to Embodiment 1 of the present invention.

FIG. 2 is a lateral cross-sectional view of a seat heating apparatus according to Embodiment 2 of the present invention.

FIG. 3 is a lateral cross-sectional view of a conventional seat heating device.

[Description of Signs] 1 seat seat, 1a seat seat portion, 2 heating elements,
15 lower case, 15a front plate, 15b lower plate,
15c Rear plate, 18 hot air outlet, 19 air inlet, 28, 30 upper case.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B61D 27/00 B60H 1/22

Claims (2)

(57) [Claims] 1. A seat seat in which a heating element is arranged below a seat installed at a predetermined height from a floor surface, and hot air from the heating element is supplied in a footstep direction of a seated person. In the heating device, a front plate facing the front of the heating element, a lower plate extending rearward from a lower end of the front plate, an upper end extending upward from a rear end of the lower plate, and an upper end extending toward the front. and a lower case made of rear plate which extends to approximately the same position as the upper end of the face plate to cover the upper portion of the heating element, composed of a top case for reflecting the radiant heat from the heating body downward, the upper
The heating element is placed in the lower case covering the lower part of the heating element.
The upper case is installed under the seat.
When attached to the surface and the seat is removed
The upper case is removed simultaneously with the lower case
A heating device for a seat , wherein the inside of the seat is exposed to the outside . 2. The seat according to claim 2, wherein the upper case is provided with the seat.
Lower surface of the seat portion so as to be substantially fused within the outer shape of the seat
2. The device according to claim 1 , wherein the device is closely attached to the portion.
The heating device for a seat according to the above.