WO2004020230A1

WO2004020230A1 - Seat for vehicle

Info

Publication number: WO2004020230A1
Application number: PCT/JP2003/009451
Authority: WO
Inventors: Shigeki Hirabayashi
Original assignee: Johnson Controls Automotive Systems Corporation
Priority date: 2002-08-28
Filing date: 2003-07-25
Publication date: 2004-03-11
Also published as: AU2003248108A1; JP2004082960A

Abstract

A seat (1), comprising an air sucking means for sucking air (64) in a cabin, an air conditioning means (43) for raising or lowering the temperature of the air (64) sucked by the air sucking means, a control means for controlling the air conditioning means (43), and a blower means for blowing the air (64) air-conditioned by the air conditioning means (43) from an air blowout (22), wherein a branch member (63) for guiding the air (64) blown out from the air conditioning means (43) to a plurality of communication holes (18) formed in the seat (1) is installed between the air blowout means (22) and the air conditioning means (43).

Description

Membrane Vehicle seat Technical field

The present invention relates to a vehicle seat used for an automobile, a ship, an aircraft, a vehicle, and the like, and particularly to a vehicle seat provided with a temperature control mechanism. Background art

Vehicle seats with conventional temperature control mechanisms are installed in the first duct connected to a temperature controller built into the instrument panel of the seat, etc. A second duct for supplying the supplied air to the seat cushion, and connecting means for connecting the first and second ducts so as not to hinder the adjustment of the seat position (see JP-A-2000-52747). ) (Referred to as the first conventional example). In Japanese Patent Application Laid-Open No. 2000-7001, the temperature of the seat is not adjusted, but the room air is supplied to the air distribution passage extending to the outside of the seating contact surface without air stagnation inside the seat. Discloses that the air blows through the sheet skin (referred to as the second conventional example).

However, in the first conventional example, it is necessary to route the first duct from the temperature controller incorporated in the instrument panel or the like to the connecting means on the floor. Since the position where the first duct is routed is under the occupant's feet, the first duct protrudes from the floor, and There is a possibility that the quality of the product may be deteriorated. Further, in the second conventional example, a part of the breathable skin is drawn in by the pulling portion in the seat and is locked by the wire, but the air guided to the air distribution passage is directly passed from the skin to the occupant and the occupant. Since the air is blown into the vehicle interior, the amount of air blown near the air distribution passage is larger than the amount of air blown far from the air distribution passage. That is, in the second conventional example, there is a possibility that the blowout amount and the blowout temperature due to the blowout amount may be uneven depending on the location.

In view of the above, the present invention has been made in view of the problems of the prior art, and aims to improve the quality of the underfoot area by preventing the duct attached to the air conditioning means from being routed to the underfoot area. An object of the present invention is to provide a vehicle seat that averages the amount of air blown out. Disclosure of the invention

The object is achieved by a vehicle seat according to claim 1. The seat includes an air suction means for sucking room air into the seat, an air conditioning means for increasing or decreasing the temperature of the air sucked by the air suction means, and a control means for controlling the air conditioning means. Blower means for blowing air, the temperature of which is controlled by the air blow means, from the air blow means to a plurality of communication holes formed in the sheet between the air blow means and the air condition means. The gist of the invention is that a branching member for guiding the air is interposed.

According to the first aspect of the present invention, since the temperature of the air sucked in the seat is adjusted by the air conditioning means, the duct is arranged in the foot area. Therefore, the quality of the foot area can be improved. Further, a branching member for guiding the air blown out from the air conditioning means is interposed in the plurality of communication holes formed in the sheet between the air blowing means and the air conditioning means. Air can be evenly blown to the means.

According to a second aspect of the present invention, there is provided the vehicle seat according to the first aspect, wherein an outlet of the air conditioning means is inserted and supported in an opening communicating with a plurality of communication holes formed in the seat. The branch member has a V-shaped cross section and is supported by a trim cover that covers the opening.

According to the second aspect of the invention, in addition to the effect of the first aspect, when air whose temperature is adjusted is blown out from the outlet of the air conditioning means inserted and supported in the opening formed in the sheet, The air is branched by a branch member supported by a trim cover that covers the opening, and the air is uniformly supplied to the entire sheet through a plurality of communication holes that communicate with the opening.

The invention according to claim 3 is the vehicle seat according to claim 1, wherein the branch member is made of a non-breathable flexible material.

According to the third aspect of the invention, in addition to the effect of the first aspect, the branching member is made of a non-breathable flexible material. Does not leak. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side view of a seat according to an embodiment of the present invention. FIG. 2 is a front view of FIG.

Figure 3 is a top view of Figure 1.

FIG. 4 is an enlarged explanatory view of arrow IV in FIG.

FIG. 5 is an exploded perspective view of the air conditioner attached to the cushion frame of FIG.

FIG. 6 is an exploded perspective view of the air conditioner attached to the back frame of FIG.

FIG. 7 is a top view of a communication hole formed in the cushion pad of FIG. FIG. 8 is a front view of a communication hole formed in the back pad of FIG.

FIG. 9 is a sectional view taken along the line KK of FIG.

FIG. 10 is a circuit diagram of the air conditioner of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings ₍ note that FIG. 1 is described with arrow FR on the front side and arrow UP on the upper side.

Note that the embodiments described below are preferred specific examples of the present invention, and therefore, various technically preferable limitations are given. However, the scope of the present invention particularly limits the present invention in the following description. It is not limited to these embodiments unless stated otherwise.

1 to 10 show an embodiment of the present invention, and reference numeral 1 denotes a vehicle seat. In the following, a vehicle will be described as an example of a “vehicle”, but the “vehicle” is not limited to a vehicle, but includes an aircraft, a ship, and the like.

The seat 1 includes a seat cushion 2 on which an occupant (not shown) can sit, a seat back 3 on which the occupant leans, and an upper end of the seat back 3. An active headrest 4 for protecting the occupant's cervical spine from the secondary collision load caused by the occupant's own weight when being supported and collided; a power slide device 5 for adjusting the front and rear positions of the seat cushion 2; The seat cushion 2 includes a reclining device 6 for inclining the seat cushion 3 in the front-rear direction with respect to the seat cushion 2, and an air conditioner 7 supported by the seat cushion 2 and the seat back 3.

The seat cushion 2 includes a rectangular cushion frame 10 (see FIG. 5), three S-shaped springs 11 suspended in the front-rear direction of the cushion frame 10, the cushion frame 10 and the S-shaped spring 11 A cushion pad 12 made of polyurethane foam covering the upper side of the cushion pad 12 and a trim cover 13 for ventilation which covers the upper side of the cushion pad 12 and has air permeability are provided (see FIG. 9).

In FIG. 7, the side B of the cushion pad 12 represents the rear side of the vehicle, and the side A represents the front side of the vehicle. As shown in FIG. 7, grooves 15 for the design pulling portion 14 (see FIG. 9) of the trim cover 13 are formed in two branches in the front-rear direction and three branches in the left-right direction. That is, the groove 15 includes a pair of right and left grooves 15a and 15b, a groove 15c provided between the grooves 15a and 15b, and a rear groove 15d and a front groove 15e. These grooves 15a to 15e define a pair of rear rectangular portions 16, 16 and a front rectangular portion 1f, respectively. A groove-shaped communication hole 18 having an opening is formed in each of the rear side rectangular portions 16 and 16 and the front side rectangular portion 17, and this communication hole 18 is formed in the groove 15c in the vertical direction of the cushion pad 12. It communicates with an opening 19 formed therethrough. Above the rear rectangular portions 16, 16 and the front rectangular portion 17, a non-breathable coating 20 is fixed with an adhesive. Since the opening 20 covers the opening of the groove portion 18, the shape of the communication hole 18 becomes a groove-like force or a cylindrical shape. The position of the opening 19 is an average position that is not covered by the buttocks of the occupant sitting on the seat cushion 2, for example, a position about 150 mm forward from the hip point, and is a long hole in the left and right direction. is there.

A rear air outlet 21 which is an “air blowing means” is formed in the above-mentioned coating 20 at a communication hole 18 at a position corresponding to the criticality covered by the buttocks of the occupant sitting on the seat cushion 2. Similarly, a front-side outlet 22 serving as an “air blowing unit” is formed in a communication hole 18 at a position corresponding to a critical position covered by a thigh of an occupant sitting on the seat cushion 2. The front outlet 22 is formed at four places on one side on the left and right sides along the length direction of the thigh. That is, a total of ten "air blowing means" are formed, including two rear blowing ports 21 and eight front blowing ports 22.

As shown in FIG. 6, the seat pack 3 has a structure having a rectangular back frame 25 as a skeleton. The back frame 25 includes an upper frame 26, a pair of left and right side frames 27, 27, and a pair of side frames 27, 27. 27, a pressure receiving device 28 of the active headrest 4 supported by the side frame 27, a lamper support device 29 supported by the side frames 27, 27, and a position between the pressure receiving device 28 and the lumbar support device 29. , One S-shaped spring 30 suspended from one side frame 27 to the other side frame 2F, polyurethane covering the back frame 25, pressure receiving device 28, ramper support device 29, S-shaped spring 30 A back pad 31 made of foam (see FIG. 8) and a breathable cosmetic trim cover that covers the front side of the back pad 31 32.

As shown in FIG. 8, the back pad 31 is provided with a groove 34 for a design pulling portion (not shown) of the trim cover 32. Groove 34 (Well, a pair of first longitudinal grooves; vertically 34a, 34b and a first longitudinal groove; * between vertical grooves 34a, 34b, a second longitudinal groove 34c shorter than the first longitudinal grooves 34a, 34b. A horizontal groove 34d connecting these three vertical grooves 34a, 34b, 34c << It is further provided. A vertical groove 34a, 34b, 34c and a horizontal groove 34d are provided. As shown in FIG. 8, a pair of rectangular portions 35, 35 is formed with a groove-shaped communication hole 36 having an opening (not shown), and a back pad 3 is formed on the second vertical groove 34c. It communicates with an opening 37 formed through the front and rear direction of (1).

On the front side (occupant side) of the rectangular portions 35, 35, a non-breathable padding 38 is fixed with an adhesive, the covering 38 covers the opening of the communication hole 38, and the shape of the communication hole 36 is a groove. It becomes cylindrical from a shape. The position of the opening 37 is an average position that is not covered by the back of the occupant leaning on the seat back 3, for example, formed at a position about 250 mm upward from the hip point, and a vertically long hole. Is o

Six openings 39 are formed in the feeding 38 as "air blowing means" communicating with a communication hole 36 at a position corresponding to the criticality which is covered by the back of the occupant leaning on the seat back 3.

The air conditioner 7 includes blower means 41 for blowing air from the outlets 21, 22, 39, air suction means 42 for sucking room air by the blower means 41, and air suction means 42. By 42 Berch for raising and lowering the temperature of the sucked air: air conditioning means 43 having a built-in L element (not shown); and control means 44 for controlling the air conditioning means 43. (See Figure 5). The air suction means 42 is provided with a well-known filter (not shown). The control means 44 is provided separately from the blower means 41.

As shown in FIG. 5, the blower means 41 includes a mass member 46 made of an iron plate having a thickness of 5 mm and a mass of 500 g supported by a mount bracket 45 suspended on the cushion frame 10 of the seat cushion 2. It is composed of a case 48 suspended by a buffer 47 having a thickness of 3 mm, and a fan (not shown) provided inside the case 48. Connecting ducts 49, 50 are connected to the case 48. The air conditioning means 43, 43 supported by the seat cushion 2 and the seat pack 3, respectively, are connected to the air conditioning means 43, 43 via the connecting ducts 49, 50. The case 48 and the mass member 46 are fastened together by screws 53. The buffer 47 is fixed to the case 48 with a double-sided tape or the like. A duct support plate 51 and a bracket 52 are fixed to the cushion frame 10 by screws 53 from the lower side to the upper side of the duct 50 to support and protect the duct 50.

As shown in FIG. 6, the connection duct 50 communicates with a back duct 61 at the lower end of the seat back 3. The pack duct 61 is supported by screws 62 on the side frame 27 of the back frame 25 by the back duct fixing bracket 60.

The air-conditioning means 43 attached to the back frame 25 has a built-in Peltier element (not shown), and is connected to the back duct 61. A communication port 54 (see FIG. 6) communicating with the duct 49 and an outlet 55 communicating with the outlets 21, 22, and 39 through the openings 19, 37 are provided.

As shown in FIG. 2, the outlet 55 is inserted into only one of the spaces 30b defined by the bent portion 30a of the S-shaped spring 30, and the S-shaped spring 30 is connected to the air conditioning means 43. Attach the fixing bracket 57 to the base plate 56 with the screw 58 by hooking the flange 56a of the base plate 56 along the base plate 56, and install the S-shaped spring 30 and the base plate 56 and the air conditioning means 43 except for the bent part 30a of the S-shaped spring 30 And embrace and support in band 59. Similarly, as shown in FIG. 3, inside the seat cushion 2, the outlet 55 of the cooling means 43 attached to the cushion frame 10 is connected to the space 1 defined by the bent portion 1 la of the S-shaped spring 11. It is inserted into one of the lbs and is fixed to the base plate 56 with a band 59 and a screw 58.

The width L1 of the base plate 56 is set to be 2 or less between the two bent portions 30a, 30a (11a, 11a) constituting the S-shape of the S-shaped spring 30 (11). (See Figure 6).

With reference to FIG. 9, a cross-sectional structure of the shell M around the outlet 55 of the air conditioning unit 43 will be described. Here, the cross section of the force back pad 31 described with reference to the cross section of the cushion pad 12 has a structure similar to that of the cushion pad 12.

The opening 19 is formed so as to penetrate vertically so as to be able to be inserted into the outlet 55 of the air-conditioning means 43, and a groove 15 including the opening 19 is provided with a pulling portion of the trim cover 13. Since 14 is formed, a branch member 63 having a V-shaped cross section is provided to cover the pulling portion 14 from the groove 15 side. Thus, the air 64 blown out from the outlet 55 of the air-conditioning means 43 is branched by the branching member 63 and smoothly guided to the blowout ports 21 and 22. The branch member 63 is made of a non-breathable flexible material. When the branch member 63 is provided in the seat cushion 2, a non-breathable urethane foam is desirable. When the branch member 63 is provided in the seat pack 3, an aluminum foil is used. desirable. This is because it is preferable to select a material that is easy to bend in the seat back 3 that is more accessible to the occupant than the seat cushion 2 in order not to give the occupant a foreign-body sensation. Reference numeral 67 denotes a cushioning member interposed between the air-conditioning means 43 and the cushion pad 12 so as to prevent the occupant from feeling foreign objects.

Next, the operation according to this embodiment will be described with reference to FIG.

The cooling / heating switching switch 65 of the air conditioner 7 switches between cooling and heating, and the dial switch 66 controls the start and stop of the operation of the air conditioner 7 and the control of cooling / heating. 41 controls the temperature of the air 64 sucked into the seat 1 by the air conditioning means 43. For this reason, since it is not necessary to arrange a duct under the feet, the quality of the feet area can be improved. Since the control means 44 for controlling the supply voltage to the blower means 41 and the air conditioning means 43 and the blower means 41 are separate bodies, the combination of the control means 4 "! Can be created.

In addition, the position occupied by the members in the seat 1 can be freely set, and the degree of design freedom increases.

The blower means 41 is supported by the cushion frame 10 of the seat 1. A case 48 is suspended from a mass member 46 with a buffer 47 interposed therebetween, and a fan is provided inside the case 48. Therefore, the vibration of the case 48 is reduced to a low frequency range by the mass member 46. The transition can be made to prevent fan noise.

In addition, since the air suction means 42 is disposed above the seat cushion 2, when sucking the air 64, it is difficult to suck dust around the floor, and the blown air 64 is prevented from being contaminated. . Further, since the distance from the air suction means 42 can be increased, the thickness of the carpet laid on the upper side of the floor can be increased, and the feeling of stepping can be improved. Industrial applicability

According to the first aspect of the present invention, since the temperature of the air sucked in the seat can be controlled by the air conditioning means, there is no need to arrange a duct in the underfoot area, so that the quality of the underfoot area can be improved. You. In addition, a branching member that guides the air blown out from the air conditioning unit is interposed between the air blowing unit and the air conditioning unit in a plurality of communication holes formed in the sheet. The member blows a uniform amount of air over the entire sheet.

According to the invention described in claim 2, in addition to the effect of claim 1, air whose temperature is adjusted is blown out from the outlet of the air conditioning means inserted and supported in the opening formed in the sheet, The air is branched by a branch member supported by the trim cover facing the opening, and the air is uniformly supplied to the entire sheet through a plurality of communication holes communicating with the opening. According to the third aspect of the present invention, in addition to the effect of the first aspect, since the branching member is made of a non-breathable flexible material, it does not obstruct the radius of the sheet and leaks air. Nothing.

Claims

The scope of the claims

1. Air suction means for sucking indoor air into the seat, air conditioning means for raising and lowering the temperature of the air sucked by the air suction means,

Control means for controlling the air conditioning means;

Blower means for blowing air whose temperature has been adjusted by the air conditioning means from an air blowing means,

A vehicle, characterized in that a branch member for guiding air blown out from the air conditioning means is interposed in a plurality of communication holes formed in the sheet between the air blowing means and the air conditioning means. Sheet.

2. The vehicle seat according to claim 1, wherein

An outlet of the air conditioning unit is inserted and supported in an opening communicating with a plurality of communication holes formed in the sheet,

A vehicle seat, wherein the branch member has a V-shaped cross section and is supported by a trim cover that covers the opening.

3. The vehicle seat according to claim 1, wherein:

A vehicle seat, wherein the branch member is a non-breathable flexible member.