WO2020032277A1 - Siège de véhicule - Google Patents

Siège de véhicule Download PDF

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Publication number
WO2020032277A1
WO2020032277A1 PCT/JP2019/031744 JP2019031744W WO2020032277A1 WO 2020032277 A1 WO2020032277 A1 WO 2020032277A1 JP 2019031744 W JP2019031744 W JP 2019031744W WO 2020032277 A1 WO2020032277 A1 WO 2020032277A1
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WO
WIPO (PCT)
Prior art keywords
skin
pad
seat
frame
airbag
Prior art date
Application number
PCT/JP2019/031744
Other languages
English (en)
Japanese (ja)
Inventor
仁一 田邉
Original Assignee
テイ・エス テック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2018150816A external-priority patent/JP7353552B2/ja
Priority claimed from JP2018150815A external-priority patent/JP7296032B2/ja
Application filed by テイ・エス テック株式会社 filed Critical テイ・エス テック株式会社
Publication of WO2020032277A1 publication Critical patent/WO2020032277A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

Definitions

  • the present invention relates to a vehicle seat, in particular, a pad, a frame supporting a back surface of the pad, a first skin fixed to the pad and covering the surface of the pad, and detachably connected to the first skin via a connector. And a second skin covering part of the surface of the pad directly or via the first skin.
  • the vehicle seat has an advantage that the second skin can be replaced with another second skin as needed with respect to the first skin as needed.
  • a vehicle seat having such an easily removable skin is conventionally known, for example, as shown in Patent Document 1, and in the known seat, a fastener is used as a connecting tool between the first and second skins. ing.
  • an airbag module for accommodating an airbag that can be deployed outward from the surface of the pad is provided on a frame supporting the back surface of the pad, as disclosed in Patent Document 2, for example. It is known.
  • the first object of the present invention is to provide a vehicle seat that can solve the first problem.
  • a vehicle seat including a vehicle seat, particularly a pad, a frame supporting the pad from the back surface side, and a skin covering at least the surface of the pad, a drawing groove for drawing a part of the skin into the pad. And a draw-in hole having one end opened at the bottom of the draw-in groove and the other end opened at the back surface of the pad.
  • Patent Document 3 for example.
  • a second object of the present invention is to provide a vehicle seat that can solve the second problem.
  • the present invention provides a pad, a frame for supporting the pad from the back side, a first skin fixed to the pad and covering the surface of the pad, and a first skin. And a second skin that is detachably connected to the pad via a connector and covers a part of the surface of the pad directly or via the first skin.
  • An airbag module that accommodates an airbag that can be deployed outward from the surface is provided, and at least one of the first and second skins is rupturable to allow the deployment of the airbag.
  • a first feature is that the break allowance portion is disposed at a distance from the connection tool.
  • the second feature is that the breakable portion is provided on the first skin.
  • a region overlapping the second skin exists on the first skin, and the break allowance portion is provided on the first skin outside the region. This is the third feature.
  • a region overlapping the second skin exists on the first skin, and the first breakable portion is provided on the first skin in the region.
  • a fourth feature is that a second breakable portion overlapping the first breakable portion is provided on the second skin.
  • the present invention is characterized in that the pad and the frame are a back pad and a side frame in a seat back portion supporting an occupant's back, and the break allowance portion is provided in the airbag.
  • a fifth feature is that the connector is disposed at an interval in the front-rear direction of the seat back portion from a specific connection tool located around a module.
  • the present invention provides the airbag at the time of deployment in a portion of the first skin or the second skin adjacent to a specific connector located around the airbag module.
  • a sixth feature is that a contact suppressing portion that suppresses contact between the connector and the specific connector is provided along the specific connector.
  • the present invention is characterized in that the contact suppressing portion is constituted by an outward projecting portion extending outward from a surface of the skin on which the contact suppressing portion is provided,
  • the seventh feature is that the overhang height is higher than the overhang height of the specific connector.
  • the pad may include a recess groove for retracting at least a part of the first skin among the first and second skins, A connecting hole having an opening at one end at the bottom of the groove and an opening at the other end on the back surface of the pad, wherein a portion of the first skin to be drawn into the drawing groove penetrates the drawing hole; And the other end of the connecting member is connected to the inner surface of the frame directly or via a support member, and the airbag module is attached to the frame so as to avoid the connecting portion.
  • a portion to be attached to the frame of the airbag module is disposed on a side opposite to the connecting portion with the frame interposed therebetween.
  • a plate-like wall portion of the frame sandwiched between the attached portion and the connecting portion may have a concave recessed to one side in the thickness direction of the wall portion.
  • a tenth feature is to have a curved portion.
  • the “fracture-permissible portion” refers to a fragile portion which is provided in advance on the skin to allow the airbag to be deployed when the airbag is deployed and which can be broken by the airbag in the initial stage of deployment.
  • the ⁇ connecting portion '' refers to a connecting portion between the other end of the connecting member and the inner surface of the frame
  • the other end of the connecting member is connected to the inner surface of the frame via the supporting member, it refers to a connecting portion between the supporting member and the inner surface of the frame.
  • the present invention provides a pad (P1, P2), a frame (F1, F2) for supporting the pad (P1, P2) from the back side, and the pad (P1, P2). ),
  • the pressure receiving members (11, 13, 14, 14) supporting the pads (P1, P2) are provided on the frames (F1, F2). 14 ', 24, 28), the pads (P1, P2) are provided with recessed grooves (g1 to g3, g1' to g3 ') for retracting a part of the skin (C1, C2).
  • a portion where a skin is drawn into a drawing groove of the pad is connected through a drawing hole of the pad.
  • connection member Since the connection member is connected to the pressure receiving member via the member, the connection member is connected to the pressure receiving member that can be disposed closer to the drawing hole of the pad than the frame, so that the connection member can be reduced in size and weight and simplified in structure. As a result, the weight of the seat can be reduced and the cost can be reduced.
  • the present invention is characterized in that, in addition to the first feature, the pressure receiving member is a plate-like member (11, 14, 14 ', 24) as a second feature.
  • the pressure receiving member is a plate-shaped member, the attachment site of the connecting member to the pressure receiving member can be secured and set in a relatively wide range, thereby making it easy to attach the connecting member. This makes it possible to enhance the mounting rigidity of the connecting member.
  • the plate-like member (11) is provided with a concave portion (11bb) or a raised portion
  • the connecting member (J1 to J3) is provided with the concave portion (11bb).
  • the plate-shaped member which is the pressure-receiving member is provided with a concave portion or a raised portion
  • the connecting member is provided on the raised portion or on the plate-shaped member adjacent to the raised portion, or the concave portion. Since it is connected to the portion adjacent to the recessed portion of the plate or the plate-like member, the mounting rigidity of the connection member can be further enhanced by the uneven shape caused by providing the recessed portion or the raised portion in the plate-shaped member. Become.
  • the plate-shaped member (11) is provided with a plurality of recessed portions (11bb) or raised portions, and the connecting members (J1 to J3) are provided with the plurality of recessed portions.
  • a fourth feature is that the plate-like member (11) is connected between the portions (11bb) or between the plurality of raised portions.
  • the plate-shaped member as the pressure receiving member is provided with a plurality of recesses or ridges, and the connecting member is provided between the plurality of ridges or between the plurality of recesses.
  • a specific portion that is, a portion between the ridges or between the dents
  • the rigidity is increased by the reinforcing rib effect of the recess or the ridge
  • the connecting members J1 to J3, J1 'to J3'
  • the connecting members are provided with through holes (h1) provided in the plate-like members (11, 14, 14 ', 24). , H5 ', and h2').
  • the connecting member is connected to the through hole provided in the plate-shaped member, even if the pressure receiving member is a plate-shaped member, it is easy to lock the connecting member to the plate-shaped member, and Workability is improved.
  • the connecting member (J1) is provided at a position avoiding the through holes (h1 to h3) provided in the plate member (11).
  • the sixth feature is that the connection is made to ()).
  • the connecting member since the connecting member is connected to the plate member at a position avoiding the through hole provided in the plate member, the connecting member is locked in the through hole of the plate member. Therefore, a decrease in mounting rigidity due to the above is avoided, which is advantageous in enhancing mounting rigidity.
  • the plate-like member (11, 24) includes a substrate portion (11, 24) along a back surface of the pad (P1, P2).
  • 11b, 24b) are provided with inclined portions (11s, 24s) extending obliquely toward the pads (P1, P2), and the connecting members (J1, J2, J1 ', J2') are provided with the inclined portions.
  • (11s, 24s) is a seventh feature.
  • the plate-shaped member is provided with the inclined portion that extends obliquely from the substrate portion toward the pad, and the connecting member is connected to the inclined portion. Can be made closer to the pad side in the thickness direction of the pad, which can contribute to the reduction in size and weight of the connecting member.
  • the plate-like member (11, 24) includes a substrate portion (11, 24) along a back surface of the pad (P1, P2). 11b, 24b), there are provided inclined portions (11s, 24s) extending obliquely toward the pads (P1, P2), and the connecting members (J1 to J3, J1 'to J3') are provided with the inclined portions.
  • An eighth feature is that the plate-like member (11, 24) is connected to a position avoiding (11s, 24s). According to the eighth feature, since the connecting member is connected to the plate-shaped member at a position avoiding the inclined portion of the plate-shaped member, it is possible to avoid a decrease in mounting workability due to the inclination of the inclined portion.
  • the plate-like member (14, 14 ', 24) is provided between a plurality of springs (13) provided on the frame (F1, F2) or a plurality of wires (28).
  • the connecting members (J1 to J3, J1 'to J3') are connected to the plate-like members (14, 14 ', 24) at positions avoiding the spring (13) or the wire (28).
  • the plate-shaped member is supported between a plurality of springs or wires mounted on the frame, and the connecting member is connected to the plate-shaped member at a position avoiding the spring or the wire. Therefore, the connecting member can be easily attached to the plate-like member without being affected by the position of the wire or the spring, and the workability of attaching the connecting member is good.
  • the pressure receiving member is a spring (13) or a wire (28) installed on the frame (F1, F2) to support the pad (P1, P2).
  • the connection member can be directly connected to the spring or the wire for supporting the pad. Simplification is achieved, and the workability of attaching the connecting member is good.
  • a vehicle seat provided with an airbag module on a frame, wherein at least one of the first and second skins is rupturable to allow deployment of the airbag. Since the permitting portion is arranged at a distance from the connecting device, it is possible to effectively prevent the connecting device between the first and second skins from contacting and interfering with the airbag in the initial stage of deployment of the airbag, and This is advantageous in ensuring an accurate operation of.
  • the breakable portion since the breakable portion is provided on the first skin fixed to the pad, the breakable portion can be effectively prevented from moving relative to the pad, and the operation of the airbag is more stable. Can be done.
  • the break allowance portion of the first skin is arranged outside the area, so that the airbag is deployed. There is no danger that the airbag will be obstructed by the second skin, which is advantageous in ensuring accurate operation of the airbag.
  • the second breakable portion overlaps the first breakable portion. Since the break allowance portion 2 is provided on the second skin, there is no possibility that the deployment operation of the airbag is hindered by the second skin, which is advantageous in ensuring accurate operation of the airbag.
  • the break allowance portion is arranged at a distance from a specific connector located around the airbag module in the front-rear direction of the seat back portion. Even if it is deployed diagonally forward and outward of the seat back part while breaking the break allowance part, it can effectively prevent contact and interference with this and the connector, and secure the correct operation of the seat back airbag The above is more advantageous.
  • a contact suppressing portion that suppresses contact between the airbag and the specific connector when deployed in a portion of the first skin or the second skin adjacent to the specific connector. Is provided along the specific connector, so that even when the break allowance portion is located relatively close to the specific connector, the contact suppressing portion prevents the contact between the airbag and the connector during deployment.
  • the airbag can be more appropriately deployed and operated.
  • the contact suppressing portion is constituted by an outwardly projecting portion extending outward from the surface of the skin on which the contact suppressing portion is provided, and the projecting height of the outwardly projecting portion is determined by the specific Is higher than the overhang height of the connecting device, so that the simple structure of merely providing an outer protrusion on the surface of the first or second skin can effectively contact the airbag and the connecting device during deployment. It can be suppressed.
  • the pad has a drawing groove for drawing in a part of the first skin, and a drawing hole having one end opened at the bottom of the drawing groove and the other end opened at the back surface of the pad.
  • a portion of the first skin that is drawn into the drawing groove is connected to one end of a connecting member that penetrates the drawing hole, and the other end of the connecting member is connected to the inner surface of the frame directly or via a support member.
  • the connecting member for connecting the skin and the airbag module are attached to the common frame. Even so, there is no possibility that the operation of the airbag is hindered.
  • the mounting portion of the airbag module which is mounted on the frame, is disposed on the opposite side of the connecting portion with respect to the frame.
  • the parts can be compactly opposed to each other across the frame.
  • the plate-shaped wall portion of the frame sandwiched between the connection portion and the mounted portion of the airbag module has a concave curved portion recessed to one side in the thickness direction of the wall portion. Since the concave portion exerts the reinforcing rib effect, the rigidity of the frame (particularly, the plate-like wall portion) can be increased while reducing the weight of the frame structure. The rigidity of each connection member and the airbag module can be increased.
  • FIG. 1 is an overall perspective view showing an automobile seat according to a first embodiment of the present invention.
  • 2A is a perspective view showing a state in which the easily removable skin is removed from the base skin at the seat portion and the seat back portion of the seat
  • FIG. 2B is a seat pad and a back pad before the base skin is attached.
  • FIG. 3 is a perspective view showing a state in which a back pad is removed from a seat back portion to expose a back frame.
  • FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG.
  • FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG.
  • FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG.
  • FIG. 1 is an overall perspective view showing an automobile seat according to a first embodiment of the present invention.
  • 2A is a perspective view showing a state in which the easily removable skin is removed from the base skin at the seat portion and the seat back portion of the seat
  • FIG. 2B is a seat pad and a
  • FIG. 7C is a perspective view of the seat back portion as viewed from the front outside (that is, the airbag installation side), and FIG. 7D is a perspective view of the back pad similarly viewed from the front outside.
  • FIG. 8 is a cross-sectional view corresponding to FIG. 5 schematically showing an example of the process of deploying the airbag.
  • FIG. 8 (E) shows an initial state of the deployment of the airbag, and FIG. It is a drawing showing a completed state.
  • FIG. 9 is a sectional view corresponding to FIG. 5, showing a second embodiment of the present invention.
  • FIG. 10 is a sectional view corresponding to FIG. 5, showing a third embodiment of the present invention.
  • FIG. 11 is a cross-sectional view schematically showing an example of the deployment process of the airbag according to the third embodiment.
  • FIG. 11 (G) corresponds to FIG. 8 (E)
  • FIG. 8 is a drawing corresponding to FIG.
  • FIG. 12 is an overall perspective view showing the automobile seat according to the first embodiment of the present invention.
  • FIG. 13A is a perspective view showing a state in which the easily removable skin is removed from the base skin at the seat portion and the seat back portion of the seat
  • FIG. 13B is a seat pad and a back pad before the base skin is attached.
  • FIG. FIG. 14 is a perspective view (corresponding to FIG. 12) showing a state in which the seat pad and the back pad are removed to expose the seat frame and the back frame.
  • FIG. 15 is an enlarged sectional view taken along line 15-15 of FIG.
  • FIG. 16 is an enlarged sectional view taken along line 16-16 of FIG. FIG.
  • FIG. 17A is an enlarged sectional view taken along line 17A-17A in FIG. 14, and FIG. 17B is an enlarged sectional view taken along line 17B-17B in FIG. 18 (A) to 18 (D) are enlarged cross-sectional views (partly corresponding views of FIG. 15) of main portions showing various modifications of the locking structure of the connecting member to the pan frame.
  • FIG. 19 is a perspective view showing a seat portion of a vehicle seat according to the second embodiment of the present invention.
  • FIG. 20E is an enlarged sectional view taken along line 20E-20E in FIG. 8
  • FIG. 20F is an enlarged sectional view taken along line 20F-20F in FIG.
  • AM airbag module C2: seat back skins f1 to f4 as skins; first to fourth fasteners g1 and g2 as connecting tools; first and fourth fastener grooves g1 and g2. .., 1 and 2 connecting members m1,... As a connecting member, a breakable portion, a first breakable portion m2,... A second breakable portion P2,.
  • front-back, left-right, and up-and-down mean front-back, left-right, and up-and-down, respectively, as seen from the occupant sitting in the seat.
  • the vehicle seat S as a vehicle seat is mounted on an upper portion of the seat back portion S1 that supports the occupant's buttocks from below, a seat back portion S2 that supports the occupant's back from behind, and a seat back portion S2. And a headrest section S3.
  • the driver's seat is shown, but the passenger seat is also basically the same as the driver's seat except that the location of the airbag module AM described later is reversed left and right. is there.
  • the seat seat S1 includes a seat pad P1, a seat frame F1 that supports the seat pad P1 from the back side, and a seat skin C1 that covers the surface of the seat pad P1.
  • the seat frame F1 is supported on the vehicle body floor 30 so as to be adjustable in the front-rear position via a conventionally-known front-rear position adjustment mechanism (not shown).
  • the seat back portion S2 includes a back pad P2, a back frame F2 that supports the back pad P2 from the back side, and a seat back skin C2 that covers the surface of the back pad P2.
  • the back frame F2 is supported by the rear of the seat frame F1 via a conventionally known reclining mechanism 32, and the reclining mechanism 32 allows the seat back portion S2 to arbitrarily adjust and fix the standing angle. ing.
  • the back frame F2 serving as the skeleton frame of the seat back portion S2 includes a pair of left and right side frames 20, 20 extending in the up-down direction, and the upper and lower portions of both side frames 20, 20. It is composed of a metal frame having upper and lower cross members 21 and 22 extending in the left-right direction to be connected to each other, and a headrest support frame 23 for integrally connecting upper ends of both side frames 20 and 20. You.
  • Each frame upper part 20a of the left and right side frames 20 and the headrest support frame 23 are formed of a continuous pipe material formed in an inverted u-shape.
  • Each of the side frames 20 includes a frame upper portion 20a formed of a part of the pipe material, and a plate-shaped frame main portion 20b in which the frame upper portion 20a is joined (for example, welded) to an upper end portion and extends vertically.
  • the frame main portion 20b is formed of a channel material having a U-shaped cross section with an open center side of the seat, and the channel material gradually increases in front-rear width as approaching a joint portion (i.e., a lower end portion) with the seat frame F1. It is formed so as to increase the rigidity strength.
  • a concave portion 20ba which is recessed on one side (in the embodiment, the seat inner side) in the thickness direction, that is, in the left-right direction and extends in the up-down direction is integrally formed at the middle portion in the width direction of the frame main portion 20b.
  • the rigidity of the frame main portion 20b (therefore, the side frame 20) is enhanced by the concave curved portion 20ba exerting the reinforcing rib effect.
  • each side frame 20 On the inner surface of each side frame 20 (specifically, the concave portion 20ba of the frame main portion 20b and the upper portion 20a of the frame), a plurality of support members 41 made of a corrugated bar in which peaks and valleys are alternately arranged.
  • the outwardly extending portions 41o are joined (for example, welded).
  • the support member 41 is used to lock and connect the connecting members J1 and J2 for retracting the seat back skin C2 described later.
  • the shape and structure of the support member 41 are not limited to the embodiment, and for example, a shape obtained by bending a strip material into a wave shape may be used.
  • a pressure-receiving plate 24 made of synthetic resin or metal is installed on the lower cross members 21 and 22 above and below the back frame F2 via a pair of left and right wires 28 and 28 laid between the cross members 21 and 22. Supported. Further, at least one wave spring 29 that supports the lower rear surface of the pressure receiving plate 24 is suspended and supported between the left and right side frames 20, 20. The pressure receiving plate 24, the wave spring 29, and the wire 28 cooperate with each other to support the back pad P2 from the back side.
  • the back pad P2 includes a main back pad P2M that is a main part of the back pad P2, and a flat cover pad P2C that covers the outside of an airbag module AM described later.
  • the pads P2M and P2C are made of a cushion material ( Each of them is formed into a predetermined shape by using, for example, urethane foam.
  • the main back pad P2M includes a pad body P2m having a front surface serving as a support surface for the back of the occupant, a left side connected to the left and right sides of the pad body P2m, and extending forward to support the outside of the back;
  • the right and left raised pad portions P2s are provided, and the rear surfaces of the left and right raised pad portions P2s are supported by the side frame 20 (see FIGS. 4 and 5).
  • Each of the left and right raised pad portions P2s covers the front, rear end, and outer surfaces of the side frame 20.
  • the left and right raised pad portions P2s particularly include a raised pad portion P2s on the outside of the vehicle (for example, on the right side because the seat S in the embodiment is for a driver's seat). Opening O is formed.
  • the airbag module AM is housed in the module opening O, and the airbag module AM is fixed to the outer surface of the frame main portion 20b of the side frame 20 facing the opening O.
  • the airbag module AM extends along the outer surface of the frame main portion 20b and has a flat box-shaped module case 50 in the vehicle width direction, and is housed in the module case 50.
  • the inflator 51 includes a fixed inflator 51, an airbag 52 that can be rapidly inflated by high-pressure gas from the inflator 51, and a holding bag 53 that holds the airbag 52 in a folded state in normal times.
  • the inflator 51 operates based on a detection signal of a collision sensor (not shown) capable of detecting an impact at the time of a vehicle collision, and can supply high-pressure gas into the airbag 52.
  • the holding bag 53 can be immediately broken by the inflation of the airbag 52.
  • the module case 50 includes a flat dish-shaped case body 50m that opens to the outside of the vehicle, and a lid plate 50c that opens and closes an outer end opening of the case body 50m. It is fixed to the portion 20b with a plurality of sets of bolts b and nuts n.
  • the rear edge of the lid plate 50c is pivotally connected 50h to the rear edge of the opening of the case body 50m in a swingable manner.
  • the front edge of the cover plate 50c is detachably engaged with the front edge of the opening of the case body 50m in a state where the cover plate 50c closes the opening of the case body 50m.
  • the locking portion 50k has such a locking structure that it can be easily unlocked by the inflation of the airbag 52 and the cover plate 50c can be opened.
  • first and second recessed grooves g1 and g2 extending in the vertical direction at respective boundaries between the pad body P2m and the left and right raised pad portions P2s, respectively.
  • a third recess groove g3 extending in the left-right direction is recessed so that the intermediate portions of the first and second recess grooves g1 and g2 communicate with each other.
  • the main back pad P2M has a plurality of drawing holes P2h each having an opening at one end on the bottom surface of each of the drawing grooves g1 to g3, and having the other end opening at the back surface of the main back pad P2M. Are formed at intervals in the longitudinal direction of each of the recessed grooves g1 to g3.
  • the seat back skin C2 includes a base skin 25 fixed to the back pad P2 and covering the outer surface of the back pad P2, and an easily removable skin 26 covering the front surface of the base skin 25.
  • the easily attachable / detachable skin 26 is detachably connected to the base skin 25 via first to third fasteners f1 to f3 in the respective recessed grooves g1 to g3 as described later. It is detachably connected to the base skin 25 via the fourth fastener f4.
  • the base skin 25 corresponds to the shape of the back pad P2, and includes a central base skin 25m covering the pad body P2m, and a left and right base skin 25s covering the front and side front portions of the left and right raised pad portions P2s. And an outer peripheral base skin portion 25z that covers the entire outer peripheral surface of the back pad P2, and the base skin portions 25m, 25s, and 25z are sewn to each other, and the back pad is integrally formed as a whole. It covers P2. Then, only the outer peripheral base skin portion 25z of the base skin 25 is in an area that does not overlap with the easily removable skin 26 and is always exposed to the outside.
  • the right and left sides of the rear half of the outer peripheral base skin portion 25z are fixed (for example, adhered) to the left and right raised pad portions P2s and the side frame 20 so as to go around the respective rear end surfaces, as shown in FIGS.
  • the upper and lower sides of the rear half of the outer peripheral base skin portion 25z are fixed (for example, adhered) to the upper and lower ends of the pad body P2m so as to go around their respective rear end surfaces.
  • a portion of the back surface of the seat back portion S2 that is difficult to cover with the outer peripheral base skin portion 15z can be covered in a good shape by attaching a cover member (not shown) to the back surface of the seat back portion S2.
  • a flat cover pad P2C facing the outer surface of the module case 50 (particularly, the cover plate 50c) is fixed to the surface of the outer peripheral base skin portion 25z facing the airbag module AM as shown in FIGS. For example, bonding).
  • the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s of the base skin 25 are set at positions corresponding to the first and second recess grooves g1 and g2, respectively, and the corresponding recess grooves are provided.
  • g1, g2, and the drawn-in portion is connected to the side frame 20 (specifically, via the plurality of first and second connecting members J1..., J2. Specifically, it is connected to and supported by the inner surface of the concave portion 20ba) of the frame main portion 20b.
  • the upper and lower middle portions of the central base skin portion 25m are drawn into the third drawing groove g3, and the drawn portion is locked to the pressure receiving plate 24 via a plurality of connecting members J3 ... penetrating the back pad P2. Be linked.
  • each of the plurality of first and second connecting members J1,..., J2... Extending in the front-rear direction is provided on each of the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s. Are fixed (for example, sewn), and the connecting members J1... J2... Respectively pass through the plurality of drawing holes P2h.
  • the pad reaches the rear surface of the pad P2.
  • the front ends of a plurality of third connecting members J3 extending in the front-rear direction are fixed (for example, sewn) to the upper and lower intermediate portions of the central base skin portion 25m, and these connecting members J3 are attached to the third recess grooves g3.
  • Each of the plurality of lead-in holes P2h, which are opened at intervals, reaches the rear surface of the back pad P2.
  • the first to third connecting members J1 to J3 each include a member main body Ja formed in a strip shape and extending in the front-rear direction, and a locking piece Jk coupled and fixed to the rear end of the member main body Ja.
  • the locking piece Jk is formed of a J-shaped hook body, and among them, the locking pieces Jk of the first and second connecting members J1 and J2 are, as shown in FIGS. It is locked and connected to the inwardly protruding portion 41i of the support member 41 fixed to 20.
  • the locking piece Jk of the third connecting member J3 is engaged with the through hole h1 of the pressure receiving plate 24 located at a portion facing the drawing hole P2h opening in the third drawing groove g3 or in the vicinity thereof as shown in FIG. Stopped and connected.
  • the locking pieces of the first to third connecting members J1 to J3 penetrating the recessed hole P2h. Jk may be locked and connected to the wire 28 or the wave spring 29.
  • the locking pieces Jk of the first to third connecting members J1 to J3 are not limited to the above-mentioned hook members, that is, the supporting members 41, the wires 28, the springs 29, the through holes h1 of the pressure receiving plate 24, and the like. It can be formed into various shapes that can be locked and connected.
  • the locking piece Jk may be constituted by a clip body (not shown) having a hook portion that can be elastically deformed at its tip.
  • the easily removable skin 26 includes a central easily removable skin 26m that covers the central base skin 25m of the base skin 25, and a left and right easily removable skin 26s that respectively cover the left and right base skins 25s. And the easily removable skin portions are sewn together to cover the front surface and the left and right side front portions of the base skin 25 (that is, the region excluding the outer peripheral base skin portion 25z) as a whole. .
  • connection structure between the easily removable skin 26 and the base skin 25 will be described with reference to FIGS.
  • the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s, which are respectively drawn into the first and second drawing grooves g1 and g2, have the insides of the first and second fasteners f1 and f2.
  • the fastener pieces f1i and f2i are fixed (for example, sewn).
  • the first and second fasteners f1 and f2 are respectively attached to the sewn portions of the central easy detachable skin portion 26m and the left and right easy detachable skin portions 26s which are respectively drawn into the first and second recess grooves g1 and g2.
  • the outer fastener pieces f1o and f2o of f2 are fixed (for example, sewn).
  • the inside fastener piece f3i of the third fastener f3 is fixed (for example, sewn) to the front and rear middle portion of the central base skin portion 25m that is drawn into the third drawing groove g3.
  • an outer fastener piece f3o of the third fastener f3 is fixed (for example, sewn) to a front and rear middle portion of the central detachable skin portion 26m which is drawn into the third recess groove g3.
  • the first to third fasteners f1 to f3 are arranged such that the outer fastener pieces f1o to f3o and the inner fastener pieces f1i to f3i are positioned in the first to third recessed grooves g1 to g3. It is arbitrarily detachably connected by the slide operation.
  • the inner fastener of the fourth fastener f4 is provided on the sewn portion between the upper edge portion of the central base skin portion 25m and the outer edge portions of the left and right base skin portions 25s and the front edge portion of the outer peripheral base skin portion 25z.
  • the piece f4i is fixed (for example, sewn).
  • An outer fastener piece f4o of the fourth fastener f4 is fixed (for example, sewn) to the upper edge portion and the left and right outer edge portions of the easily removable skin 26.
  • the fourth fastener f4 is detachably connected between the outer fastener piece f4o and the inner fastener piece f4i on the outer peripheral surface (that is, the upper surface and the left and right side surfaces) of the back pad P2 by sliding the slider f4s. Is done.
  • the above-mentioned airbag 52 automatically releases the locking of the locking portion 50k according to the inflation change at the initial stage of the inflation and swings the cover plate 50c outward around the rear pivot connection 50h. Move. This allows the airbag 52 to inflate and deploy outward from the gap between the cover plate 50c and the opening end of the case body 50m (see FIG. 8E).
  • the gap or a portion adjacent to the outside of the gap and sandwiched between the right protruding pad portion P2s and the cover pad P2C corresponds to a deployment start portion P2x of the airbag 52 from the surface of the back pad P2. .
  • the outer peripheral base skin portion 25z is provided with a break allowance portion m1 that can be broken by the airbag 52 in the initial stage of deployment.
  • the break allowance portion m1 is located at a position corresponding to the airbag deployment start portion P2x (that is, the deployment start portion P2x and the airbag deployment portion P2x) so that it can be easily and efficiently broken by the airbag 52 in the initial stage of deployment. At a position facing or near).
  • the breakable portion m1 of the present embodiment is constituted by a series of small holes that are perforated in the outer peripheral base skin portion 25z and arranged in a perforated shape.
  • the breakable portion m1 extends along the front edge, upper edge, and lower edge of the cover plate 50c so that the cover plate 50c of the module case 50 (accordingly, the cover pad P2C described above) is slightly wider. It is arranged in a letter shape.
  • the break allowance part m1 (the deployment start part P2x) is separated from the fourth fastener f4 located around the airbag module AM among the first to fourth fasteners f1 to f4 (that is, is spaced apart in the front-rear direction). And).
  • the breakable portion m1 may be a fragile structure that can be broken by the airbag 52 in the initial stage of deployment while securing a cover strength that can withstand normal use in the outer peripheral base skin portion 25z, and is not limited to the embodiment.
  • Various fragile structures can be employed.
  • the relevant portion of the outer peripheral base skin portion 25z may be configured to be thinner than other portions, or may be cut into the relevant portion. May be formed and a low-strength (ie, easily torn) stitch is applied between both sides of the cut portion.
  • the back pad P2 is an example of the pad of the present invention
  • the back frame F2 is an example of the frame of the present invention.
  • the first to fourth fasteners f1 to f4 are examples of the connector of the present invention.
  • the fourth fastener f4 is a connector of the present invention which is a specific connector located around the airbag module AM. This is an example.
  • the base skin 25 is an example of the first skin of the present invention
  • the easily removable skin 26 is an example of the second skin of the present invention.
  • the seat pad P1 of the seat seat S1 is also covered with a seat skin C1 including a base skin 15 and an easily removable skin 16, and the structure of mounting the skin C1 to the seat pad P1 is as follows. This is the same as the above-described attachment structure of the back skin C2 to the back pad P2.
  • the upper surface of the seat pad P1 is provided with recess grooves g1 'to g3' for retracting the skin similarly to the back pad P2, and the base skin 15 and the easily removable skin 16 are used for the seat back skin C2.
  • Fasteners f1 'to f4' similar to the fasteners f1 to f4 are detachably connected.
  • the operation of the first embodiment will be described.
  • the back pad F2 before the seat back skin C2 is attached to the back frame F2 and the airbag module AM is attached to the outer surface of one side frame 20 of the back frame F2.
  • the assembling work of the seat back skin C2 to the back pad P2 is performed as follows.
  • the base skin 25 of the seat back skin C2 is sewn between the outer peripheral base skin portion 25z, the center base skin portion 25m, and the left and right base skin portions 25s, and the first to third portions are provided at predetermined portions.
  • a base skin unit is formed in advance by sewing the connecting members J1 to J3 and the inner fastener pieces f1i to f4i of the first to fourth fasteners f1 to f4, and the base skin unit is put on the front surface of the back pad P2. Put on.
  • the left and right sides of the outer peripheral base skin portion 25z of the base skin unit are fixed to the left and right raised pad portions P2s and the side frame 20, as shown in FIGS.
  • the upper and lower sides of the outer peripheral base skin portion 25z are fixed (eg, bonded) to the upper and lower ends of the pad body P2m so as to go around the rear end surfaces thereof.
  • the base skin unit including the base skin portions 25m, 25s, and 25z of the base skin 25 is fixed to the seat pad P2 so as to cover it.
  • a state in which a part of the base skin 25 is drawn into the first to third drawing grooves g1 to g3 is a state in which the first and second connecting members J1 and J2 are fixed to the inner side surface of the side frame 20.
  • the third connection member J3 is maintained by being locked and connected to the through hole h1 of the pressure receiving plate 24, so that the base skin 25 is displaced, loosened, and wrinkled with long-term use. And the like can be effectively prevented.
  • the center easily removable skin 26m and the left and right easily removable skin 26s are sewn to each other, and the first to fourth fasteners are attached to a predetermined portion.
  • An easily detachable skin unit formed by sewing outer fastener pieces f1o to f4o of f1 to f4 is manufactured in advance. Then, this easily removable skin unit is placed so as to cover the base skin 25 previously fixed to the seat pad P2. At this time, the outer fastener pieces f1o to f3o of the first to third fasteners f1 to f3 are attached.
  • the attachment of the seat back skin C2 to the back pad P2 is completed. Also, when the base skin 15 and the easily removable skin 16 of the seat skin C1 are mounted on the seat pad P1, the mounting operation can be performed in the same mounting procedure as the seatback skin C2 described above.
  • the easily removable skins 16, 26 are provided with the fasteners f1 to f4, f1 'to the base skins 15, 25 fixed to the seat pad P1 and the back pad P2, respectively.
  • f4 ' it can be easily detached at any time.
  • the easily removable detachable skins 16, 26 are replaced with other easily removable detachable skins 16, 26 having different colors, patterns, textures, or the like according to the season, or the dirty easily removable detachable skins 16, 26 are removed and cleaned. It is possible and convenient.
  • the inflator 51 is activated by the impact at the time of the collision to supply high-pressure gas to the airbag 52. This causes the airbag 52 to rapidly inflate and deploy. At this time, the airbag 52 opens the cover plate 50c of the module case 50, that is, swings outward at the initial stage of the deployment (see FIG. 8E), so that the cover plate 50c and the open end of the case body 50m are connected. As shown in FIG. 8F, the airbag 52 inflates and deploys outward from the gap formed between the airbag 52 and the rupture permitting portion 25zx that is opposed to and close to the gap, thereby protecting the occupant.
  • a breakable part m1 that can be broken by the airbag 52 in the initial stage of deployment is provided with an airbag on the surface of the back pad P2.
  • the breakable portion m1 is provided at a position corresponding to the deployment start site P2x (that is, a position facing the deployment start site P2x or a position near the deployment start site P2x). It is arranged at an interval from the fourth fastener f4.
  • the fourth fastener f4 can effectively prevent the fourth fastener f4 from contacting and interfering with the airbag 52 that is about to break through and permit inflation and deployment by breaking through the breakable portion m1. This is advantageous in ensuring an accurate operation of.
  • the breakable portion m1 of the seat back skin C2 is provided on the base skin 25 fixed to the back pad P2. Accordingly, the break allowance m1 can be effectively prevented from being shifted with respect to the back pad P2 (therefore, the airbag deployment start site P2x from the surface of the pad P2), so that the operation of the airbag 52 can be further stabilized. .
  • the breakable portion m1 of the base skin 25 is arranged. Accordingly, there is no possibility that the deployment operation of the airbag 52 is hindered by the easily removable skin 26, and this is advantageous in ensuring accurate operation of the airbag 52.
  • the fourth fastener f4 located around the airbag module AM is disposed forward of the break allowance portion m1. Accordingly, even if the airbag 52 is deployed obliquely outward of the seat back portion S2 while breaking the breakable portion m1, the contact and interference between the airbag 52 and the fourth fastener f4 can be effectively prevented.
  • the back pad P2 of the present embodiment has recessed grooves g1 to g3 for retracting a part of the base skin 25, one end opened at the bottom of the recessed grooves g1 to g3, and the other end opened on the back surface of the back pad P2.
  • the other ends of the members J1 to J3 are connected to the inner surface of the frame main portion 20b of the side frame 20 via the support member 41, and the connection portion (ie, the connection between the support member 41 and the inner surface of the frame main portion 20b).
  • the airbag module AM is attached to the side frame 20 so as to avoid the part w).
  • the connecting members J1 to J3 for skin retraction are connected to the common right side frame 20 (specifically, the frame main portion 20b) via the supporting member 41 and the airbag is provided.
  • the module AM is mounted, there is no possibility that the operation of the airbag 52 is hindered.
  • the attached portion of the airbag module AM, which is attached to the frame main portion 20b, that is, the case main body 50m is disposed on the opposite side of the frame main portion 20b from the connecting portion w, so that the connecting portion w ( Accordingly, the support member 41) and the case main body 50m can be compactly opposed to each other with the frame main portion 20b interposed therebetween.
  • the frame main portion 20b of the side frame 20 which is a plate-like wall portion sandwiched between the coupling portion w (accordingly, the support member 41) and the case body 50m, is recessed to one side in the thickness direction. It has a concave portion 20ba. Since the concave curved portion 20ba exerts the reinforcing rib effect, the rigidity of the side frame 20 (the frame main portion 20b) can be increased while reducing the weight of the frame structure. The mounting rigidity of the members J1 to J3 and the airbag module AM is effectively increased.
  • FIG. 9 shows a second embodiment of the present invention.
  • the second embodiment has basically the same seat structure as that of the first embodiment, but is further provided on a portion of the base skin 25 as the first skin which is adjacent to the fourth fastener f4 (specific connection tool).
  • the outer projecting portion (contact suppressing portion) 61 is attached (for example, sewn) at the base end thereof to the base skin 25, that is, the outer peripheral base skin portion 25 s, and is outward from the surface of the base skin 25.
  • (Particularly the fourth fastener f4 side) a sheet-shaped overhanging portion main body 61m, and a huge rim extending along the fourth fastener f4 integrally and continuously provided at the tip of the overhanging portion main body 61m.
  • a head 61a is made of a sheet-like flexible material, for example, a cloth material or a synthetic resin sheet material.
  • the airbag 52 and the fourth fastener f4 can be in contact with each other at the time of deployment due to the special provision of the outwardly extending part (contact suppression part) 61. Therefore, the airbag 52 can be deployed and operated more accurately.
  • the overhang height of the outwardly extending portion (contact suppressing portion) 61 is higher than the overhang height of the fourth fastener f4.
  • an enlarged head 61a having a bead shape, that is, a substantially circular cross section is integrally formed at the tip of the sheet-shaped overhang portion main body 61m of the outward overhang portion (contact suppressing portion) 61.
  • the cross-sectional shape of the enlarged head 61a is not limited to the second embodiment, and may be any shape that can suppress the contact between the airbag 52 and the fourth fastener f4 during deployment. I just need. Further, such an enlarged head 61a may be omitted, and the outwardly projecting portion (contact suppressing portion) 61 may be constituted only by the sheet-like projecting portion main body 61m.
  • FIGS. 9 and 10 show a third embodiment of the present invention.
  • the break allowance portion m1 is disposed on the base skin 25 (that is, the outer base skin portion 25z) outside the region where the base skin 25 and the easily removable skin 26 overlap.
  • a first break allowable portion m1 is provided in the base skin 25 (that is, the right base skin portion 25s) in the above-described region.
  • a second breakable portion m2 overlapping the first breakable portion m1 is provided on the easily removable skin 26.
  • the first and second breakable portions m1 and m2 are substantially at the front edge, the upper edge, and the lower edge of the cover plate 50c of the module case 50 (therefore, the cover pad P2C), like the breakable portion m1 of the first embodiment. It is composed of a series of small holes arranged along the perforation.
  • the first and second breakable portions m1 and m2 are, like the breakable portion m1 of the first embodiment, in the initial stage of deployment while securing a cover strength that can withstand normal use in the base skin 25 and the easily removable skin 26.
  • Any brittle structure that can be broken by the airbag 52 described above may be used, and various brittle structures can be adopted without being limited to the embodiment.
  • the corresponding portions of the base skin 25 and the easily removable skin 26 may be configured to be thinner than the other portions, or may be formed in the corresponding portions.
  • a configuration may be adopted in which a cut is made longitudinally and both sides of the cut are sewn together with low strength (that is, so as to be easily torn).
  • the first breakable portion m1 is Since the overlapping second breakable portions m2 are provided on the easily removable skin 26, there is no possibility that the deployment operation of the airbag 52 is hindered by the easily removable skin 26, and in order to ensure the proper operation of the airbag 52. This is advantageous.
  • outwardly extending portion (contact suppressing portion) 61 of the second embodiment to the structure of the skin C2 of the third embodiment, in which case, the outwardly extending portion (contact suppressing portion).
  • the base end of 61) is connected to the easily removable skin 26 (specifically, the right easily removable skin 26s), and is sewn, for example.
  • the vehicle seat S is illustrated as the vehicle seat.
  • the vehicle seat S is used for a vehicle other than an automobile (for example, a railway vehicle) or a vehicle other than a vehicle (for example, a ship or an aircraft). It is applicable to the sheet used.
  • the airbag module AM is built in the back pad P2 of the seat back portion S2, and the airbag 52 is inflated and deployed from the surface of the back pad P2.
  • the bag module may be built in the seat pad P1 of the seat S1, and the airbag may be inflated and deployed from the surface of the seat pad P1.
  • at least one of the first and second skins (that is, the base skin 15 and the easily removable skin 16) of the seat skin C1 is provided with a fastener f1 'to serve as a connector for connecting the first and second skins to each other.
  • a break allowance portion m1 is provided at an interval from f4 '.
  • the seat skin C1 and the seat back skin C2 have a two-layer structure in which at least a part of the base skins 15 and 25 overlap the easily removable skins 16 and 26.
  • a single-layer structure in which the base skin and the easily removable skin do not overlap may be used.
  • the retracting structure of the skin is the same as that of the above embodiment.
  • a breakable portion m1 is provided on one of the base skin (first skin) and the easily removable skin (second skin) in a specific connection located around the airbag module AM.
  • the tool (fourth fastener f4) is provided at an interval.
  • the base skins 15, 25 and the detachable skins 16, 26, which constitute the seat skin C1 and the seat back skin C2, respectively, have a thin skin-like single-layer structure.
  • at least one of the base skins 15, 25 and the easily removable skins 16, 26 is provided with a multilayer structure (for example, a real non-woven fabric) in which a thin cushion sheet material is sandwiched between at least two outer skins overlapping each other. -14628).
  • a breakable portion m1 that can be broken by the airbag 52 in the initial stage of deployment is provided on the base skin 25 of the seatback skin C2 at a position corresponding to the airbag deployment start site P2x on the surface of the back pad P2 ( That is, it is arranged at a position facing the deployment start site P2x or at a position in the vicinity thereof, and the breakable portion m1 can be easily and efficiently broken. Any position may be used as long as it is broken by the airbag 52 at the initial stage of deployment of the airbag 52 and the deployment operation of the airbag 52 can be reasonably permitted, for example, a position slightly away from the corresponding position.
  • the airbag module AM includes the flat box-shaped module case 50 in which the airbag 52 and the inflator 51 are stored in a folded state.
  • a caseless airbag module in which the module case is omitted for example, see Japanese Patent No. 6211839
  • a webbing e.g., Japanese Patent No. 6211839
  • the first and second connecting members J1 and J2 penetrating through the drawing hole P2h are locked to the support member 41 fixed to the inner surface of the side frame 20 (more specifically, the frame main portion 20b).
  • the support member 41 is omitted and the first and second connecting members J1 and J2 are provided on the side frame 20.
  • it may be directly locked and connected to a not-shown locked portion (for example, a through hole, a hook-shaped projection, or the like).
  • the member main body Ja of each of the connecting members J1 to J3 is shown to be formed of a rigid band plate material.
  • the shape of the member main body Ja of the connecting member of the present invention is not limited to the embodiment. Any shape can be used as long as it can pass through the drawing hole P2h.
  • the member body Ja may be a rod-shaped material, or the member body Ja may be made of a flexible material if necessary connection strength can be secured.
  • the connecting members J1 to J3 are directly connected (sewn) to the recessed portions of the skin C2 (specifically, the base skin 25) into the recessed grooves g1 to g3.
  • Each of the connecting members J1 to J3 may be connected to the retracted portion via an edge reinforcing member (for example, a wire) attached to the retracted portion and extending in the longitudinal direction of the recessed grooves g1 to g3.
  • the vehicle seat having no air-blowing air-conditioning function for the seat is exemplified.
  • the present invention relates to a ventilation path provided in a pad of the seat (for example, a seat pad) and a blowing device (for example, a blowing fan). ) And a duct for connecting the ventilation path and the blower with a ventilation seat air-conditioning function (see, for example, International Publication WO2018 / 061602A2, Japanese Patent Application Publication No. 2005-287532). Is also applicable.
  • the airbag module AM of this embodiment the support member 41, the recess grooves g1 to g3, g1 'to g3', the recess hole P2h, the connecting members J1 to J3, the pressure receiving plate 24, the wave spring 29, and the wire 28
  • the air passage, the duct, and the air blower provided in the seat portion S1 or the seat back portion S2 are disposed so as to avoid the above-described air passage, the duct, and the blower.
  • the vehicle seat S as a vehicle seat is mounted on an upper portion of the seat back portion S1 that supports the occupant's buttocks from below, a seat back portion S2 that supports the occupant's back from behind, and a seat back portion S2. And a headrest S3.
  • the seat portion S1 includes a seat portion pad P1, a seat portion frame F1 that supports the seat portion pad P1 from the back side (that is, a lower side), and a seat skin C1 that covers the outer surface of the seat portion pad P1.
  • the seat frame F1 is supported on the vehicle body floor 30 via a conventionally well-known front / rear position adjusting mechanism 31, so that the seat seat S2 can be adjusted and fixed to an arbitrary front / rear position with respect to the vehicle body floor 31. It has become.
  • the seat back portion S2 includes a back pad P2, a back frame F2 that supports the back pad P2 from the back side (that is, the rear side), and a seat back skin C2 that covers an outer surface of the back pad P2.
  • the back frame F2 is supported at the rear of the seat frame F1 via a conventionally known reclining mechanism 32, whereby the seat back portion S2 can adjust and fix the standing angle arbitrarily.
  • a seat frame F1 serving as a skeleton frame of the seat seat portion S1 has a pair of left and right side frames 10, 10 extending in the front-rear direction, and a rear portion extending in the left-right direction to join between the rear ends of the two side frames 10, 10. It is constituted by a metal frame provided with the cross member 12.
  • the front end portions of the side frames 10, 10 may be connected by a front cross member (not shown) as necessary.
  • the left and right sides of the front portion of the pan frame 11 are placed and fixed (in the embodiment, screwed) on the front halves of the left and right side frames 10, 10, respectively.
  • the pan frame 11 is formed of a substantially box-shaped metal or synthetic resin plate-like member having an open upper surface, and has a generally rectangular dish shape so as to receive and support the lower surface of the seat pad P1 over substantially the entire area. It is formed.
  • the pan frame 11 includes a substrate portion 11b which is formed substantially flat along the lower surface of the seat portion pad P1, a front portion of the substrate portion 11b, a portion before rising from a rear end portion, and rear plate portions 11f and 11r.
  • Left and right side plate portions 11s are integrally formed as inclined portions that rise upward and incline outward from both left and right sides of the substrate portion 11b.
  • the upper end of the rear plate 11r is engaged with and supported by the rear cross member 12.
  • the pan frame 11 is thus mounted on the seat frame F1 to support the seat pad P1 from the bottom side, and is an example of the pressure receiving member of the present invention.
  • the seat pad P1 is an example of the pad of the present invention
  • the seat frame F1 is an example of the frame of the present invention.
  • each reinforcing bead 11bb is integrally provided with a reinforcing bead 11bb extending in the front-rear direction across the through-hole h1.
  • Each reinforcing bead 11bb is formed by curving a part of the pan frame 11 in a substantially circular arc shape in cross section.
  • the reinforcing bead 11bb whose upper surface is concave as in the first embodiment is a concave portion of the present invention.
  • the reinforcing bead 11bb whose upper surface is a convex surface constitutes a raised portion of the present invention.
  • the reinforcing bead 11bb may be formed so as to surround some of the through holes h1 and h2.
  • the through-holes h1,..., H2,... are provided, for example, to secure the air permeability of the seat portion S1, to pass electric wiring and reduce waste, or to draw in a seat portion skin C1, which will be described later. It is used for locking and connecting the connecting members J1 to J3 to the pan frame 11, and is formed in various sizes and positions according to the purpose.
  • the seat pad P1 is formed into a predetermined shape with a cushion material (for example, urethane foam) having moderate elasticity and hardness as a sheet material. That is, as shown in FIG. 13B, the seat pad P1 includes a seat pad main body P1m having an upper surface serving as a seat surface, and a left side which is connected to the left and right sides of the seat pad main body P1m and protrudes upward from the seat surface. A right raised pad portion P1s. On the upper surface of the seat pad P1, first and second recessed grooves g1 and g2 extending in the front-rear direction at the boundary between the seat pad body P1m and the left and right raised pad portions P1s, respectively, are provided. A third pull-in groove g3 extending in the left-right direction is formed in a recessed manner so that the intermediate portions of the two pull-in grooves g1 and g2 communicate with each other.
  • a cushion material for example, urethane foam
  • the seat pad P1 has a plurality of recesses P1h each having one end opened on the bottom surface of each of the recess grooves g1 to g3 and the other end opened on the back surface of the seat pad P1. Are formed at intervals in the longitudinal direction of each of the recessed grooves g1 to g3.
  • the seat skin C1 is fixed to the seat pad P1 to cover the outer surface of the seat pad P1, and the seat skin C1 is easily attached and detached to cover the entire upper surface of the base skin 15.
  • an epidermis 16 The detachable skin 16 is detachably connected to the base skin 15 via first to third fasteners f1 to f3, as will be described later.
  • the outer peripheral edge of the skin 16 is detachably connected to the base skin 15 via a fourth fastener f4.
  • the base skin 15 corresponds to the shape of the seat pad P1, and includes a central base skin 15m that covers the seat pad body P1m, and left and right base skins that cover the upper surface and the upper side surface of the left and right raised pad P1s. 15s, and an outer peripheral base skin portion 15z that covers the entire outer peripheral surface of the seat pad P1.
  • the base skin portions 15m, 15s, and 15z are sewn to each other, and the whole is integrated. Cover the seat pad P1.
  • the lower half outer periphery of the outer peripheral base skin portion 15z covers the outer surfaces of the left and right raised pad portions P1s and is fixed to the left and right side frames 10 so as to go around the lower surfaces thereof (for example, adhered).
  • the seat pad body P1m is fixed (for example, adhered) to the front and rear ends of the seat pad body P1m so as to go around the lower surface thereof.
  • the easily removable skin 16 includes a central easily removable skin portion 16m that covers the central base skin portion 15m of the base skin 15, and left and right easily removable skin portions 16s that respectively cover the left and right base skin portions 15s.
  • These easily removable skin portions 16m and 16s are sewn between each other, and cover the main portion of the base skin 15 as a whole, that is, the upper surface and the upper portions on the right and left side surfaces.
  • the sewn portions of the central base skin portion 15m and the left and right base skin portions 15s of the base skin 15 are set at positions corresponding to the first and second recessed grooves g1 and g2, respectively, as shown in FIG. Are drawn into the corresponding recessed grooves g1 and g2, and the recessed portions are engaged with the pan frame 11 via the plurality of first and second connecting members J1..., J2. , Are linked.
  • the connection structure of the first connection member J1 on the left side is shown in FIG. 15, the connection structure of the second connection member J2 on the right side has the same structure and arrangement.
  • the front and rear middle portion of the central base skin portion 15m is drawn into the third drawing groove g3, and the drawing portion is interposed through a plurality of third connecting members J3 penetrating the seat pad P1 as shown in FIG. And locked to the pan frame 11.
  • first and second first and second sewn portions extending in the up-down direction are provided on the sewn portions of the center base skin 15m and the left and right base skins 15s.
  • the upper ends of the connecting members J1,..., J2 are fixed (eg, sewn), and the connecting members J1,. It reaches the lower surface of P1.
  • upper and lower ends of a plurality of third connecting members J3 extending vertically are fixed (for example, sewn) to front and rear intermediate portions of the central base skin portion 15m, and the connecting members J3 are formed of a plurality of seat pads P1. , Respectively, and reaches the lower surface of the seat pad P1.
  • Each of the connecting members J1 to J3 includes a member main body Ja formed in a strip shape and extending in the vertical direction, and a locking piece 17j coupled and fixed to a lower end portion of the member main body Ja.
  • the locking piece 17j is a through-hole h1 located immediately below or near the lead-in hole P1h of the seat pad P1 among the plurality of through-holes h1. .., H2.
  • a locking piece 17j composed of a J-shaped hook as illustrated in FIGS. 15 and 16 is used. .., H2... Of the plurality of through-holes h1..., H2... Of the pan frame 11 at the position corresponding to the recessed hole P1h of the seat pad P1 (that is, immediately below the recessed hole P1h or In the vicinity thereof, the same shall apply hereinafter), and is locked and connected to the through hole h1 or h2.
  • FIG. 15 shows an example in which the locking piece 17j of the first connecting member J1 is fitted and locked in the through hole h2 of the side plate portion 11s as the inclined portion of the pan frame 11
  • FIG. 16 shows an example in which the locking piece 17j of the third connecting member J3 is fitted and locked in the through hole h1 existing between the adjacent reinforcing beads 11bb of the board portion 11b of the pan frame 11. Is shown.
  • the lower surface of the pan frame 11 is provided with an engaging recess (FIGS. 15 and 16) for engaging the tip of the hook of the locking piece 17j so that the locking of the locking piece 17j with the through hole h1 does not come off. May be recessed if necessary.
  • each of the connecting members J1 to J3 is also inserted into the through-hole h1 or h2 located at a position corresponding to the drawing hole P1h of the seat pad P1 at a portion other than the cross section of FIGS. Locked and connected.
  • the reinforcing bead 11bb (concave portion or protruding portion) exists at a position corresponding to the drawing hole P1h as in a modified example shown in FIG.
  • the locking piece 17j is locked and connected to the through hole h3 provided in the (recessed or raised portion) or the through hole (not shown) provided in a portion of the pan frame 11 adjacent to the reinforcing bead 11bb. It may be.
  • the locking pieces of the first to third connecting members J1 to J3 are not limited to the hook-shaped locking pieces 17j described above, that is, they can be formed into various shapes that can be locked and connected to the pan frame 11. is there.
  • a locking piece for example, as shown in a modified example shown in FIGS. 18B and 18C, a locking piece 17k composed of a clip integrally having an elastically deformable locking claw 17kt at its tip is used. May be used.
  • FIG. 18B shows an example in which a locking piece 17k made of a clip is fitted and locked in a through hole h2 of a side plate portion 11s as an inclined portion of the pan frame 11, and FIG.
  • a locking piece 17k formed of a clip is fitted into a relatively small through-hole h1 provided in the substrate portion 11b of the pan frame 11 between adjacent reinforcing beads 11bb (concave portions or raised portions).
  • h1 provided in the substrate portion 11b of the pan frame 11 between adjacent reinforcing beads 11bb (concave portions or raised portions).
  • One example of locking is shown.
  • the locking piece 17k when attaching to the pan frame 11, the locking piece 17k pushes the tapered tip into the through holes h1 and h2 from above.
  • the locking claw 17kt of the locking piece 17k is elastically contracted and deformed so as to be able to pass through the through holes h1 and h2, and is restored after passing through and locked at the opening edges of the through holes h1 and h2.
  • the locking pieces 17j and 17k are locked in the through holes h1 to h3 of the pan frame 11, but instead of / in addition to the through holes h1 to h3, the pan frame A locking member 11t having a locked portion (for example, an opening, a hook portion, a locking hole, etc.) for locking the locking piece 17j in a detachable manner on the upper surface of the locking member 17j as in a modification shown in FIG. May be protruded.
  • a locked portion for example, an opening, a hook portion, a locking hole, etc.
  • the first and second seat fasteners f1 and f2 are provided at the respective sewn portions of the central base skin portion 15m and the left and right base skin portions 15s that are respectively drawn into the first and second drawing grooves g1 and g2.
  • the inner end edges of the inner fastener pieces f1i and f2i are fixed (for example, sewn).
  • the first and second fasteners for the seat portion are provided at the respective sewn portions of the center easily removable skin portion 16m and the left and right easily removable skin portions 16s, which are also drawn into the first and second recessed grooves g1 and g2, respectively.
  • FIG. 15 shows only the structure of the first fastener f1 on the left, but the same applies to the connection structure of the second fastener f2 on the right.
  • the inner end edge of the inner fastener piece f3i of the third fastener f3 for the seat portion is fixed (for example, sewn) to the front-rear intermediate portion of the central base skin portion 15m that is drawn into the third recess groove g3.
  • the outer edge of the outer fastener piece f3o of the third fastener f3 for the seat portion is fixed (for example, sewn) to an intermediate portion between the front and rear portions of the easily removable central skin portion 16m which is drawn into the third recess groove g3.
  • a fourth fastener f4 for a seat portion is provided on a sewing portion between a front edge portion of the center base skin portion 15m, left and right outer edge portions of the left and right base skin portions 15s, and an upper edge portion of the outer peripheral base skin portion 15z. Is fixed (for example, sewn) at the inner edge of the inner fastener piece f4i.
  • the outer edge of the outer fastener piece f4o of the fourth fastener f4 for the seat is fixed (for example, sewn) to the front edge and the left and right outer edges of the easily removable skin 16.
  • the first to third fasteners f1 to f3 for the seat portion are arranged such that the outer fastener pieces f1o to f3o and the inner fastener pieces f1i to f3i are located between the first to third recessed grooves g1 to g3. They are arbitrarily detachably connected by sliding operations f1s to f3s. Further, in the fourth fastener f4 for the seat portion, the outer fastener piece f4o and the inner fastener piece f4i are arbitrarily detachably connected to each other by sliding the slider f4s on the front surface and the left and right side surfaces of the seat pad P1. .
  • the application functions of the sliders f1s to f4s are the same as those of the slider of a conventionally known linear fastener.
  • the line fasteners are exemplified as the first to fourth fasteners f1 to f4 for the seat portion.
  • a hook-and-loop fastener or a point fastener for example, a button fastener may be used.
  • a back frame F2 serving as a skeleton frame of the seat back portion S2 has a pair of left and right side frames 20, 20 extending in the up-down direction, and an upper portion and a lower portion of both side frames 20, 20. It is composed of a metal frame having upper and lower cross members 21 and 22 extending in the left-right direction to be connected to each other, and a headrest support frame 23 for integrally connecting upper ends of both side frames 20 and 20.
  • a pressure receiving plate 24 made of a synthetic resin or a metal is installed on the back frame F2, for example, the upper and lower cross members 22 and 23 via a pair of left and right wires 28 and 28 extending between the cross members 22 and 23. Supported. Each wire 28 is made of metal or synthetic resin and has elasticity. Further, at least one wave spring 29 that supports the lower rear surface of the pressure receiving plate 24 is suspended and supported between the left and right side frames 20, 20. The pressure receiving plate 24, the wave spring 29, and the wire 28 cooperate with each other to support the back pad P2 from the rear side (that is, the rear side).
  • the back pad P2 is formed into a predetermined shape with a cushion material (for example, urethane foam) similarly to the above-mentioned seat pad P1, and as shown in FIG. Back pad body P2m, and left and right raised pad portions P2s connected to the left and right sides of the back pad body P2m and raised forward.
  • a cushion material for example, urethane foam
  • a third drawing groove g3 'extending in the left-right direction is formed so as to be recessed so that the intermediate portions of the second drawing grooves g1' and g2 'communicate with each other.
  • the back pad P2 has a plurality of recesses P2h... Having one end opened on the bottom surface of each of the recesses g1 'to g3' and the other end opened on the back surface of the back pad P2. ′ Are spaced apart from each other in the longitudinal direction.
  • the seat back skin C2 includes a base skin 25 fixed to the back pad P2 and covering the outer surface of the back pad P2, and an easily removable skin 26 covering the front surface of the base skin 25.
  • the easily removable skin 26 is detachably connected to the base skin 25 via first to third fasteners f1 'to f3' in each of the recessed grooves g1 'to g3' as described later.
  • the outer peripheral edge is detachably connected to the base skin 25 via a fourth fastener f4 '.
  • the base skin 25 corresponds to the shape of the back pad P2, and includes a central base skin 25m covering the back pad body P2m, and left and right base skins 25s covering the front and side front portions of the left and right raised pad portions P2s. And an outer peripheral base skin portion 25z that covers the entire outer peripheral surface of the back pad P2, and the base skin portions 25m, 25s, and 25z are sewn to each other, and the entire back surface is integrally formed. It covers the pad P2.
  • the rear half outer periphery of the outer peripheral base skin portion 25z is fixed (for example, adhered) to portions of the left and right raised pad portions P2s covering the outer surface and the rear surface of the side frame 20, and the back pad body. It is fixed (for example, adhered) to the upper and lower ends of P2m so as to go around the rear surface side.
  • a portion of the back surface of the seat back portion S2 that is difficult to cover with the outer peripheral base skin portion 15z can be covered in a good shape by attaching a cover member (not shown) to the back surface of the seat back portion S2.
  • the easily removable skin 26 includes a central easily removable skin 26m that covers the central base skin 25m of the base skin 25, and left and right easily removable skins 26s that respectively cover the left and right base skins 25s.
  • the easily removable skin portions are sewn together, and the whole covers the front surface of the base skin 25 and the front portions of the left and right side surfaces integrally.
  • the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s of the base skin 25 are set at positions corresponding to the first and second recessed grooves g1 'and g2', respectively. Are drawn into the grooves g1 ', g2', and the drawn portions are connected to the pressure receiving plate 24 or the wire 28 via the plurality of first and second connecting members J1 ', J2', which penetrate the back pad P2. Locked and connected.
  • the upper and lower middle portions of the central base skin portion 25m are drawn into the third drawing groove g3 ', and the drawn portion is locked to the pressure receiving plate 24 via a plurality of connecting members J3' ... penetrating the back pad P2. , Are linked.
  • a plurality of first and second connecting members J1 '... J2'... Extending in the front-rear direction are provided on the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s. Are fixed (for example, sewn), and the connecting members J1 ',..., J2', respectively, pass through the plurality of recesses P2h,... Of the back pad P2 and reach the rear surface of the back pad P2.
  • the front ends of a plurality of third connecting members J3 extending in the front-rear direction are fixed (for example, sewn) to upper and lower intermediate portions of the central base skin portion 25m, and the connecting members J3 'are formed of a plurality of back pads P2. Through the lead-in holes P2h.
  • the locking pieces 27j and 27k provided at the rear end of the member body Ja of the first to third connecting members J1 'to J3' for the seat back are basically related to the connecting members J1 to J3 for the seat portion.
  • the same structure as the stoppers 17j and 17k can be applied.
  • the pressure receiving member on the other side is only the pan frame 11 in the seat portion S1, whereas the seat back portion S2 has a position corresponding to each of the drawing holes P2h of the back pad P2 (that is, a position facing the drawing hole P2h).
  • the pressure receiving plate 24 has a substrate portion 24b formed substantially flat along the back surface of the back pad P2, and left and right side plate portions 24s as inclined portions rising forward and outward from both left and right sides of the substrate portion 24. And are integrally provided.
  • the pressure receiving plate 24 is provided with through holes h1 ', h2' and a reinforcing bead 24bb similar to the through holes h1, h2 and the reinforcing bead 11bb of the pan frame 11, and the through holes h1 ', h2' are formed.
  • the locking pieces 27j and 27k of the connecting members J1 'to J3' are locked and connected to the through holes h1 'and h2' at positions corresponding to the drawing holes P2h of the back pad P2.
  • the locking and connecting structures of the locking pieces 27j and 27k to the pressure receiving plate 24 are the same as the locking and connecting structures of the locking pieces 17j and 17k of the above-described seat-seat connecting members J1 to J3 to the pan frame 11. Is the same as For example, in FIG. 17A, the hook-shaped locking piece 27j of the first connecting member J1 'is locked and connected to a through hole h2' provided in the side plate portion 24s as an inclined portion of the pressure receiving plate 24.
  • a clip-shaped locking piece 27k (not shown) is provided in the same locking mode as the locking piece 17k in FIG. 18B.
  • the pressure receiving plate 24 may be fitted and locked in the through holes h1 ', h2'.
  • FIG. 17B shows an example in which the hook-shaped locking piece 27j of the first connecting member J1 'is locked and connected to the wire 28.
  • the locking pieces 27j and 27k of the seat back connecting members J1 'to J3' may be hooks or clips, similarly to the locking pieces 17j and 17k of the seat seat connecting members J1 to J3.
  • the pressure receiving member on the other side is a wave spring 29 or a wire 28, the locking is further facilitated by using the hook-shaped locking piece 27j.
  • the base skin 25 and the easily removable skin 26 in the seat back portion S2 are detachably connected by first to fourth fasteners f1 'to f4' for the seat back.
  • These fasteners f1 'to f4' have basically the same structure as the above-described first to fourth fasteners f1 to f4 for connecting between the base skin 15 and the easily removable skin 16 in the seat portion S1. Therefore, further description is omitted.
  • the pressure receiving plate 24 and the wires 28 are provided on the back frame F2 to support the back pad P2, and are an example of the pressure receiving member of the present invention.
  • the back pad P2 is an example of the pad of the present invention
  • the back frame F2 is an example of the frame of the present invention.
  • the outer base skin 15z, the center base skin 15m and the left and right base skins 15s are sewn to each other, and the first to fifth base skins are attached to predetermined portions thereof.
  • a base skin unit formed by sewing the third connecting members J1 to J3 and the inner fastener pieces f1i to f4i of the first to fourth fasteners f1 to f4 is manufactured in advance, and the base skin unit is attached to the seat pad P1. Put it on top.
  • the lower half outer periphery of the outer peripheral base skin portion 15z of the above-described base skin unit is fixed (for example, adhered) to the left and right side frames 10 so as to wrap around the lower surfaces thereof, and the front of the seat pad main body P1m. And fixed (for example, adhered) to the rear end so as to go around the lower surface thereof.
  • the base skin unit including the base skin portions 15m, 15s, 15z of the base skin 15 is fixed to the seat pad P1 so as to cover it.
  • the state in which a part of the base skin 15 is drawn into the first to third drawing grooves g1 to g3 is maintained by the connecting members J1 to J3 being locked and connected to the pan frame 11.
  • the easily removable skin 16 of the seat skin C1 is sewn between the center easily removable skin 16m and the left and right easily removable skin 16s, and the first to fourth skins are attached to predetermined portions thereof.
  • An easily detachable skin unit formed by sewing outer fastener pieces f1o to f4o of the fasteners f1 to f4 is manufactured in advance, and the detachable skin unit is put on the base skin 15 previously fixed to the seat pad P1. Put it like that.
  • the attachment of the seat skin C1 to the seat pad P1 is completed. Also, when the base skin 25 and the easily removable skin 26 of the seat back skin C2 are mounted on the back pad P2, the mounting operation can be performed in the same mounting procedure as the above-described seat skin C1.
  • the easily removable skins 16, 26 are attached to the fasteners f1 to f4, f1 'to the base skins 15, 25 fixed to the seat pad P1 and the back pad P2, respectively.
  • f4 ' it can be easily detached at any time.
  • the easily removable detachable skins 16 and 26 are replaced with other easily removable detachable skins 16 and 26 having different colors, patterns, textures, and the like according to the season, or the dirty easily removable detachable skins 16 and 26 are removed and cleaned. It is possible and convenient.
  • the pan frame 11, a pressure receiving plate 24, and a wire 28 as pressure receiving members that support the seat pad P1 and the back pad P2, respectively, are installed on the seat frame F1 and the back frame F2.
  • a connecting portion of the skin C1 (more specifically, the base skin 15) into each of the recess grooves g1 to g3 of the seat pad P1 penetrates the recess P1h. It is locked and connected to the pan frame 11 via J1 to J3.
  • the connecting members J1 to J3 can be easily connected to the pan frame 11 located closer to the drawing hole P1h than the seat frame F1, and the connecting members J1 to J3 are reduced in size and weight and simplified in structure. Is achieved, so that the weight and cost of the seat portion S1 can be reduced.
  • the connecting portions of the skin C2 (more specifically, the base skin 25) into the recesses g1 'to g3' of the back pad P2 penetrate through the recess P2h. It is locked and connected to the pressure receiving plate 24 and the wire 28 via J1 'to J3'.
  • the connecting members J1 'to J3' can be easily connected to the pressure receiving plate 24 and the wire 28 located closer to the drawing hole P2h than the back frame F2, and the connecting members J1 'to J3' can be reduced in size.
  • the weight reduction and the simplification of the structure are achieved, and the weight and cost of the seat back portion S2 can be reduced accordingly.
  • the pan frame 11 and the pressure receiving plate 24 as the pressure receiving member are plate-shaped members along the back surface of the seat pad P1 and the back pad P2 (that is, facing substantially parallel to the back surface), the connecting member J1 is provided. It is possible to secure and set a relatively wide range of mounting portions of the pressure receiving members 11 and 24 to J3, J1 'to J3' along the plate surfaces of the pressure receiving members 11 and 24. As a result, the connecting members J1 to J3 and J1 'to J3' can be easily mounted, and the mounting rigidity can be effectively increased.
  • the pan frame 11 of the present embodiment is provided with a reinforcing bead 11bb.
  • the connecting member J1 is provided with a reinforcing bead 11bb (a concave portion or a raised portion) as in a modification shown in FIG.
  • the rigidity of attachment to the connecting member J1 is increased by the structure of being locked and connected above, or locked and connected to a portion of the pan frame 11 adjacent to the reinforcing bead 11bb.
  • the reinforcing bead 11bb is the reverse of the illustrated example, that is, when it is a protruding ridge (not shown), the reinforcing bead 11bb is located closer to the connecting member J1.
  • the member J1 be further miniaturized, but also the connecting member J1 can be more easily attached.
  • the reinforcing beads 11bb (concave portions or raised portions) adjacent to each other are provided.
  • An example in which the connecting members J1 and J3 are locked and connected is shown.
  • the specific portion that is, the portion of the pan frame 11 sandwiched between the reinforcing beads 11bb
  • the connecting members J1 and J3 are locked and connected.
  • the specific portion that is, the portion of the pan frame 11 sandwiched between the reinforcing beads 11bb
  • the connecting members J1 and J1 is connected to the connecting members J1 and J1.
  • This is an attachment site for J3, which is advantageous in enhancing the attachment rigidity.
  • the pan frame 11 and the pressure receiving plate 24 of the present embodiment or its modification are provided with connecting members J1 in some of the through holes h1 to h3, h1 ', h2' provided corresponding to the drawing holes P1h, P2h.
  • the locking pieces 17j, 17k, 27j of ⁇ J3, J1 ' ⁇ J3' are locked and connected. Thereby, even if the pan frame 11 or the pressure receiving plate 24 as the pressure receiving member is a plate-shaped member, the connecting members J1 to J3 and J1 'to J3' can be easily locked to the plate member, thereby improving the mounting workability. .
  • the pan frame 11 and the pressure receiving plate 24 are obliquely directed from these substrate portions 11b and 24b toward the pads P1 and P2.
  • Left and right side plates 11s and 24s are provided as inclined portions extending so as to rise, and connecting members J1, J2, J1 'and J2' are locked and connected to the side plates 11s and 24s.
  • the connecting portion can be made closer to the seat pad P1 or the back pad P2 in the pad thickness direction, so that the connecting members J1, J2, J1 ', J2' can be reduced in size and weight.
  • some connecting members J1 and J2 are attached to the side plate 11s (inclined portion) of the pan frame 11. It is connected to the pan frame 11 at the avoiding position. In this structure, a decrease in workability of attaching the connecting members J1 and J2 due to the inclination of the side plate portion 11s is avoided.
  • a pressure receiving plate 24 as a pressure receiving member is supported between a plurality of wires 28 provided on a back frame F2, and the connecting members J1 'to J3' As shown in FIG. 17 (A), it is locked and connected to the pressure receiving plate 24 at a position avoiding the wire 28 and the wave spring 29.
  • the connecting members J1 'to J3' can be easily attached to the pressure receiving plate 24 without being affected by the positions of the wire 28 and the wave spring 29, and the workability of attaching the connecting members J1 'to J3' is good. .
  • FIGS. 19 and 20 show a second embodiment of the present invention.
  • the pan frame 11 which is an example of the pressure receiving member, is formed of a large dish-like body capable of receiving and supporting the lower surface of the seat pad P1 over substantially the entire area.
  • the pan frame 11 ′ is formed of a relatively small dish-like body that can support only the lower half of the seat pad P ⁇ b> 1, and the left and right sides of the seat frame F ⁇ b> 1. It is fixed to the side frame 10 (with screws in the embodiment).
  • a plurality of wavy springs 13 arranged in a horizontal direction at intervals are stretched and supported, and the wavy springs 13 are used to support the rear half of the seat pad P1.
  • the lower surface is elastically supported.
  • a plurality of pressure receiving plates 14 and 14 ′ for connecting and connecting the adjacent wave springs 13 and supporting and dispersing the load from the seat pad P ⁇ b> 1 are locked.
  • the pressure receiving plates 14 and 14 ′ are formed in a strip shape extending so as to straddle between at least two adjacent wave springs 13.
  • the structure of the seat pad P1 of the second embodiment is the same as that of the first embodiment.
  • the first to third connecting members J1 to J3 which are connected to the seat skin C1 drawn into the first to third drawing grooves g1 to g3 of the seat pad P1 and penetrate through the drawing holes P1h. Are locked and connected to the pan frame 11 ', the wave spring 13, and the pressure receiving plates 14, 14' at positions corresponding to the drawing holes P1h.
  • the locking and connecting structure is the same as the locking and connecting structure between the seat frame first to third connecting members J1 to J3 and the pan frame 11 (pressure receiving member) of the first embodiment.
  • FIG. 20E shows an example in which the clip-like locking pieces 17k of the first and second connecting members J1 and J2 are fitted and locked in the through holes h1 of the pressure receiving plate 14, and
  • FIG. 20F shows an example in which the hook-shaped locking pieces 17j of the first and second connecting members J1 and J2 are locked to the waveform spring 13.
  • FIGS. 20 (E) and (F) Although there are no cross-sectional views other than FIGS. 20 (E) and (F), some of the first and second connecting members J1 and J2 are provided in through holes h1 provided at positions corresponding to the drawing holes P1h of the pan frame 11 ′. Locked and connected. Although not shown, the third connecting member J3 is locked and connected to the through hole h1 of the pressure receiving plate 14 'and / or the wave spring 13 at a position corresponding to the drawing hole P1h.
  • the pressure receiving plates 14, 14 ', the wave spring 13, and the pan frame 11' are examples of the pressure receiving member of the present invention
  • the seat frame F1 is an example of the frame of the present invention. It is.
  • the pressure receiving plates 14, 14 'as pressure receiving members are supported between a plurality of waveform springs 13 provided on the seat portion frame F1, and some of the connecting members J1 to J3 are It is locked and connected to the pressure receiving plates 14, 14 'at a position avoiding the wave spring 13.
  • some of the connecting members J1 to J3 can be easily attached to the pressure receiving plates 14, 14 'without being affected by the position of the wave spring 13, so that the workability of attaching the connecting members J1 to J3 is good. .
  • a part of the wave spring 13 provided on the seat frame F1 to support the seat pad P1 also serves as a pressure receiving member, and is directly connected to some of the connecting members J1 to J3. .
  • the connection structure is further simplified, and the workability of attaching the connection members J1 to J3 is improved.
  • the vehicle seat S is illustrated as the vehicle seat.
  • the vehicle seat S is used for a vehicle other than an automobile (for example, a railway vehicle) or a vehicle other than a vehicle (for example, a ship or an aircraft). It is applicable to the sheet used.
  • the vehicle seat having no air-conditioning function for the seat is exemplified.
  • a duct for connecting the ventilation path and the blower, and a vehicle seat see, for example, International Publication No. Is also applicable.
  • the drawing grooves g1 to g3, g1 'to g3', the drawing holes P1h, Ph2, the connecting members J1 to J3, J1 'to J3', the pressure receiving members (the pan frames 11, 11 ', the pressure receiving plate 14). , 14 ′, 24, the wave springs 13, 29, and the wire 28) are disposed so as to avoid the above-described ventilation paths, ducts, and blowers provided in the seat portion S ⁇ b> 1 or the seatback portion S ⁇ b> 2.
  • the seat skin C1 and the seat back skin C2 have a two-layer structure in which at least a part of the base skins 15 and 25 overlap the easily removable skins 16 and 26.
  • a single-layer structure in which the base skin and the easily removable skin do not overlap may be used.
  • the retracting structure of the skin is the same as that of the above embodiment.
  • the seat skin C1 and the seat back skin C2 are detachably connected to the base skins 15, 25 via connectors (fasteners f1 to f4, f1 'to f4').
  • connectors fasteners f1 to f4, f1 'to f4'.
  • the base skins 15, 25 and the detachable skins 16, 26, which constitute the seat skin C1 and the seat back skin C2, respectively, have a thin skin-like single-layer structure.
  • at least one of the base skins 15, 25 and the easily removable skins 16, 26 is provided with a multilayer structure (for example, a real non-woven fabric) in which a thin cushion sheet material is sandwiched between at least two outer skins overlapping each other. -14628).
  • the connecting portions of the connecting members J1 to J3, J1 'to J3' to the pressure receiving members are as follows.
  • the position corresponding to the recessed holes P1h and P2h of the seat pad P1 or the back pad P2 that is, the portion facing the recessed holes P1h and P2h or the vicinity thereof
  • the connecting members J1 to J3 are provided.
  • J1'-J3 'to the pressure receiving member are not limited to the positions corresponding to the above-described drawing holes P1h, P2h. What is necessary is just a site
  • the member body Ja of each of the connecting members J1 to J3, J1 'to J3' has been shown to be formed of a rigid band plate material.
  • the shape is not limited to this, and any shape may be used as long as it can pass through the drawing holes P1h and P2h together with the locking pieces 17j, 17k, 27j, and 27k.
  • the member body Ja may be a rod-shaped material, or the member body Ja may be made of a flexible material if necessary connection strength can be ensured.
  • the connecting members J1 to J3, J1 'to J3' are connected to the recessed grooves g1 to g3, g1 'to g3' of the skins C1, C2 (more specifically, the base skins 15, 25).
  • the edge reinforcing member for example, a wire
  • the connecting members J1 to J3 and J1 'to J3' may be connected to the retracted portion via the connecting portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un siège de véhicule comprenant : un premier revêtement fixé à un coussinet ; et un second revêtement pour recouvrir une partie du coussinet directement ou par l'intermédiaire du premier revêtement, le second revêtement étant relié amovible au premier revêtement par l'intermédiaire d'un connecteur ; un module de coussin de sécurité gonflable étant en outre disposé sur un cadre ; un module de coussin de sécurité gonflable (AM) pour stocker un coussin de sécurité gonflable (52) apte à se déployer vers l'extérieur à partir de la surface du coussin (P2) est disposé sur le cadre (20), et une partie cassable (m1) apte à se rompre de façon à permettre au coussin de sécurité gonflable (52) de se déployer est prévu dans les premier et/ou second couvercles (25, 26) à un intervalle par rapport aux connecteurs (f1-f4). Grâce à cette configuration, il est possible d'éviter un contact et une interférence avec le coussin de sécurité gonflable par le connecteur pendant le déploiement du coussin de sécurité gonflable, et de garantir un bon fonctionnement du coussin de sécurité gonflable.
PCT/JP2019/031744 2018-08-09 2019-08-09 Siège de véhicule WO2020032277A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2018-150816 2018-08-09
JP2018150816A JP7353552B2 (ja) 2018-08-09 2018-08-09 乗物用シート
JP2018-150815 2018-08-09
JP2018150815A JP7296032B2 (ja) 2018-08-09 2018-08-09 乗物用シート

Publications (1)

Publication Number Publication Date
WO2020032277A1 true WO2020032277A1 (fr) 2020-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/031744 WO2020032277A1 (fr) 2018-08-09 2019-08-09 Siège de véhicule

Country Status (1)

Country Link
WO (1) WO2020032277A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002079901A (ja) * 2000-09-06 2002-03-19 Honda Motor Co Ltd 側面衝突用エアバッグ装置
JP2011254934A (ja) * 2010-06-08 2011-12-22 Toyota Boshoku Corp 車両用シート
JP2016107762A (ja) * 2014-12-04 2016-06-20 トヨタ紡織株式会社 カバー脱着式乗物用シート
JP2018007717A (ja) * 2016-07-11 2018-01-18 株式会社タチエス シートカバーの引き込み構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002079901A (ja) * 2000-09-06 2002-03-19 Honda Motor Co Ltd 側面衝突用エアバッグ装置
JP2011254934A (ja) * 2010-06-08 2011-12-22 Toyota Boshoku Corp 車両用シート
JP2016107762A (ja) * 2014-12-04 2016-06-20 トヨタ紡織株式会社 カバー脱着式乗物用シート
JP2018007717A (ja) * 2016-07-11 2018-01-18 株式会社タチエス シートカバーの引き込み構造

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