WO2015016351A1 - Armature de dossier de siège, siège pour véhicule, et procédé de fabrication d'armature de dossier de siège - Google Patents

Armature de dossier de siège, siège pour véhicule, et procédé de fabrication d'armature de dossier de siège Download PDF

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Publication number
WO2015016351A1
WO2015016351A1 PCT/JP2014/070361 JP2014070361W WO2015016351A1 WO 2015016351 A1 WO2015016351 A1 WO 2015016351A1 JP 2014070361 W JP2014070361 W JP 2014070361W WO 2015016351 A1 WO2015016351 A1 WO 2015016351A1
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WO
WIPO (PCT)
Prior art keywords
frame
frame piece
piece
seat
side frame
Prior art date
Application number
PCT/JP2014/070361
Other languages
English (en)
Japanese (ja)
Inventor
将也 古田
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 JP2013160189A external-priority patent/JP6207285B2/ja
Priority claimed from JP2013161820A external-priority patent/JP6207286B2/ja
Priority claimed from JP2013175886A external-priority patent/JP2015044459A/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 WO2015016351A1 publication Critical patent/WO2015016351A1/fr

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    • 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
    • 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
    • B60N2/682—Joining means

Definitions

  • the present invention relates to a seat back frame, a vehicle seat, and a method of manufacturing the seat back frame, and in particular, a seat back frame formed by combining frame pieces made of a resin material, and a vehicle seat provided with the seat back frame. , And a method of manufacturing a seat back frame.
  • the rear frame piece rx is formed of only the resin material without using the front frame piece fx and the metal material, and the front and rear sides thereof are adhered by the adhesive.
  • the back frame F4 There is also a method of constructing the back frame F4.
  • FIG. 21 is a perspective view showing a conventional seat frame
  • FIG. 22A is a view showing a rear side frame piece rx and a front side frame piece fx of the conventional back frame, taken along the line XXII-XXII in FIG.
  • FIG. 22B is a view showing a state before joining of both in corresponding cross-sections
  • FIG. 22B is a cross-sectional view taken along line XXII-XXII of FIG. 21 showing a state in which the rear frame piece rx and the front frame piece fx in the conventional back frame are joined.
  • FIG. 22A is a view showing a rear side frame piece rx and a front side frame piece fx of the conventional back frame, taken along the line XXII-XXII in FIG.
  • FIG. 22B is a view showing a state before joining of both in corresponding cross-sections
  • FIG. 22B is a cross-sectional view taken along line XXII-X
  • the rear frame piece rx is an outer portion 23b extending vertically in the left and right of the seat width direction, and a lower frame portion 23a extending to the back of the seat and connecting lower end sides of the left and right outer portions 23b. , Is configured.
  • An adhesive 400 is applied to the front surface of the lower frame portion 23a, and an adhesive 410 is applied to the opposing inner side surfaces of the pair of outer portions 23b.
  • the front frame piece fx has a rear surface portion 22a linearly extending in the seat width direction and a pair of inner surfaces extending forward from both ends of the rear surface portion 22a at the lower portion which is the XXII-XXII cross sectional position of FIG. It comprises a portion 22b, a pair of front portions 22c extending outward in the sheet width direction from both sides of the pair of inner portions 22b, and a pair of outer portions 22d extending rearward from both ends of the front portion 22c. .
  • the distance between the outer surfaces of the pair of outer portions 22d of the front frame piece fx is designed to be substantially equal to or slightly smaller than the distance between the inner surfaces of the pair of outer portions 23b of the rear frame piece rx.
  • the front surface of the lower frame portion 23a of the rear frame piece rx and the back surface of the rear surface portion 22a of the front frame piece fx are bonded by the adhesive 400.
  • the inner side surface of the outer side portion 23b of the rear frame piece rx and the outer side surface of the outer side portion 22d of the front side frame piece fx are bonded together by the adhesive 410 to constitute the back frame F4.
  • the front frame piece fx and the rear side frame piece rx are spaced apart in the front-rear direction, and the adhesive 410 is again applied to the inner side surface of the outer side portion 23b. While the center position in the width direction has to be aligned with the center position of the rear frame piece rx, it is necessary to overlap the both, and the working efficiency is low.
  • the objective is to improve the efficiency of the operation
  • Another object of the present invention is to increase the bonding strength between the front and rear frame pieces.
  • Another object of the present invention is to reduce the weight of the back frame.
  • Another object of the present invention is to increase the rigidity of the back frame.
  • the subject is a seat back frame used for a vehicle seat, comprising: a rear frame piece on the seat rear side; and the rear frame piece And a front side frame piece connected to the front side, the rear side frame piece having left and right rear side frame parts disposed in the seat side and extending in the front-rear direction of the seat whose upper end sides are connected to each other,
  • the front frame piece has left and right front side frame portions which are disposed in the seat side and whose upper end sides are connected to each other and extend in the sheet longitudinal direction, and the left and right front side frame portions or the left and right rear sides.
  • One of the frame portions is flexible in the seat width direction, and the left and right front side frame portions and the left and right rear side frame portions are overlapped in the seat width direction. It is solved by being engaged.
  • one of the front side frame portion or the rear side frame portion has flexibility in the sheet width direction, and one of the flexibility is deformed in the sheet width direction to bond the two together.
  • the adhesive applied to the opposite surface in the sheet width direction of either the front side frame portion or the rear side frame portion is adhered without being pushed back to one side in the case of overlapping of the two. Can.
  • the front frame piece and the rear side frame piece can be adhered uniformly and easily, and the efficiency of the bonding operation of the front side frame piece and the rear side frame piece can be enhanced.
  • one of the front frame piece or the rear frame piece may be formed such that the lower end sides of the left and right side frame portions are separated in the seat width direction.
  • the left and right in one of the front frame piece or the rear frame piece The lower end side of the side frame portion can be displaced in the seat width direction, and the left and right side frame portions of the other of the front and rear frame pieces can be suitably overlapped, so that the front frame piece and the rear side It is possible to increase the efficiency of the joint work of the frame pieces.
  • an occupant support member made of an elastic material and supporting an occupant is fixed to the other of the front frame piece or the rear frame piece by its elasticity, and one of the front frame piece or the rear frame piece Is preferably formed so as to avoid a fixed part with the passenger support member.
  • one of the front and rear frame pieces is formed so as to avoid a fixed portion with the occupant support member, and thus the other of the front and rear frame pieces and the occupant support member.
  • interference between one of the front frame piece or the rear frame piece and the occupant support member can be avoided, and the front frame piece and the rear frame The efficiency of the piece joining operation can be increased.
  • the one of the front frame piece or the rear frame piece has an extending portion extending inward in the sheet width direction from the lower end side of both the left and right side frame portions, and the extending portion It is preferable that the extension extends to a length that does not reach the fixed portion of the occupant support member.
  • the extension portion extends to a length that does not reach the fixed portion of the occupant support member, thereby securing the other of the front and rear frame pieces and the occupant support member, or the front frame piece In the fixing operation between the rear frame piece and the rear frame piece, interference between one of the front frame piece or the rear frame piece and the occupant support member can be avoided, and the workability can be enhanced.
  • the other of the front and rear frame pieces has a lower frame portion connecting lower ends of the left and right side frame portions, and the lower frame portion extends in the sheet width direction.
  • the first projecting portion is formed to project in a forward direction of the seat, and the extending portion projects in a forward direction of the seat in the same manner as the shape of the first projecting portion. It is preferable that the first projection and the second projection are joined in the sheet longitudinal direction at the overlapping position, with the projection extending to the position overlapping the first projection.
  • the front frame piece and the rear frame piece are joined in the seat longitudinal direction at the position where the first protrusion and the second protrusion overlap with each other, either of the front frame piece or the rear frame piece
  • peeling resistance in a plurality of directions including the tensile direction and the shear direction acts between the first protrusion and the second protrusion and the bonding strength is enhanced.
  • the position at which the first and second protrusions overlap each other serves as an indication of the position at which the front and rear frame pieces overlap each other, and positioning can be easily performed.
  • an adhesive is interposed between the front frame piece or the other of the rear frame pieces until reaching the end of the extension.
  • the adhesive being interposed between the lower frame portion and the end of the extension, the front frame piece and the rear frame piece are peeled off from the end of the extension portion. Can be prevented, and the bonding strength can be increased.
  • the rear side frame piece and the front side frame piece be formed of a resin material.
  • the rear side frame piece and the front side frame piece be formed of a resin material.
  • a through hole through which a positioning pin passes is formed at a position facing in a superimposed state, and the rear side frame piece and the front side frame piece In the vicinity of the edge of any one of the through holes, the other side of the rear frame piece and the front frame piece bulges out more than the periphery, so that the periphery between the two is separated.
  • the through holes through which the positioning pins pass are formed in each of the rear side frame piece and the front side frame piece, so that positioning can be performed by inserting the positioning pins through the through holes. Furthermore, by bulging the vicinity of the edge of the through hole through which the positioning pin passes, the periphery of the bulging portion is separated, a space for applying the adhesive to the separated portion is formed, and the bonding strength can be enhanced.
  • the rear side frame piece and the front side frame piece be combined to form a closed cross-sectional structure.
  • rigidity can be improved by combining the back side frame piece and the front side frame piece to form a closed cross-sectional structure.
  • a plurality of the projecting portions be formed, and that the plurality of the projecting portions be separated from the extending portion.
  • the spaces between the plurality of projecting portions and the extending portions are separated, so that a space for applying the adhesive is formed in the separated portions, and the bonding strength can be enhanced.
  • the said subject is solved by providing the said seat back frame.
  • the vehicle seat can enjoy the effects exhibited by the seat back frame.
  • the front frame piece and the rear frame piece of the seat back frame are prepared, and the lower ends of the left and right side frame portions
  • the side is bent in the sheet width direction, and the one left and right side frame portions are disposed on the extension in the sheet width direction of the other left and right side frame portions of the front frame piece or the rear side frame piece,
  • the left and right side frame portions are released from the bent state, and the left and right side frame portions of both the front frame piece and the rear side frame piece are overlapped in the sheet width direction, and the left and right side frame portions are
  • the above problem is solved by bonding.
  • the lower end side of one of the left and right side frame portions is bent in the seat width direction, and the one of the left and right side frame portions is the other of the left and right side frame portions of the front frame piece or the rear side frame piece. It is disposed on the extension in the seat width direction, and the bent state of the left and right side frame portions is released, and the left and right side frame portions of both the front and rear frame pieces are overlapped in the seat width direction.
  • the adhesive applied to the opposite surface in the sheet width direction of either the front side frame portion or the rear side frame portion overlaps the both. It can be glued without being pushed back to one side. For this reason, the front frame piece and the rear side frame piece can be adhered uniformly and easily, and the efficiency of the bonding operation of the front side frame piece and the rear side frame piece can be enhanced.
  • ADVANTAGE OF THE INVENTION it becomes possible to provide the seat back frame which can improve the efficiency of the joining operation
  • FIG. 1 is a perspective view of a vehicle seat according to a first embodiment of the present invention. It is a perspective view showing a seat frame. It is a perspective view which shows a front side frame piece and a back side frame piece. It is a figure which shows the back side frame piece and front side frame piece of the back frame which concern on 1st Embodiment, It is a state before both joining in the cross section corresponding to the IV-IV cross section of FIG. It is a figure which shows the state which has not applied external force. It is a figure which shows the back side frame piece and front side frame piece of the back frame which concern on 1st Embodiment, It is a state before both joining in the cross section corresponding to the IV-IV cross section of FIG.
  • FIG. 5C is a cross-sectional view of the back frame taken along the line VC-VC in FIG. 5A.
  • FIG. 6A It is a typical front view showing a projection of a back side frame piece concerning a modification, and a projection of a front side frame piece. It is a VIB-VIB cross section arrow line view of FIG. 6A. It is a state before joining of a back frame concerning a 2nd embodiment of the present invention, and is a sectional view showing a back side frame piece and a front side frame piece in a state where external force is given to a back side frame piece. It is a state which canceled the external force given to the back side frame piece, and is a sectional view showing the state where the back side frame piece and the front side frame piece were joined. It is a perspective view of a seat frame, and is an enlarged drawing around a reclining device. FIG.
  • FIG. 9 is an AA cross-sectional view of the seat frame shown in FIG. 8 and an enlarged view of a side frame portion. It is an exploded perspective view of a reclining device attached to a side frame part via a connection bracket. It is a perspective view of the storage case of a reclining apparatus. It is an explanatory view when an internal structure of a reclining device is seen from the seat side. It is a perspective view of a connection bracket.
  • FIG. 13C is a perspective view of the connection bracket shown in FIG. 13A from another angle.
  • FIG. 13B is a cross-sectional view of the connection bracket shown in FIG. 13A, taken along the line BB, illustrating a process of assembling the connection bracket.
  • FIG. 13C is a perspective view of the connection bracket shown in FIG. 13A from another angle.
  • FIG. 13B is a cross-sectional view of the connection bracket shown in FIG. 13A, taken along the line BB, illustrating a process of assembling the connection bracket.
  • FIG. 13B is a cross-sectional view of the connection bracket shown in FIG. 13A, taken along the line BB, illustrating a process of welding the connection bracket.
  • FIG. 13B is a cross-sectional view of the connection bracket shown in FIG. 13A taken along the line BB, illustrating a process of attaching the connection bracket to the side frame portion.
  • It is a BB sectional view of a connection bracket shown in Drawing 13A, and is a figure explaining an attachment process to a side frame part of a connection bracket, and a state where a side frame and a connection bracket were pasted up with adhesives.
  • FIG. It is a perspective view which shows the skin material and trim cord of the seat back side in a seat cushion.
  • FIG. 1 It is a XVII-XVII cross-section arrow line view of FIG. 1, and is a schematic cross-sectional view of a cover in the shape where the rear end portion does not protrude in the outer diameter direction, and a connecting shaft. It is a XVII-XVII cross-section arrow line view of FIG. 1, and is a typical sectional view of a cover and a connecting shaft of the shape where a back side end projects to the diameter direction. It is a top view of a seat frame. It is a rear perspective view which shows a part of back frame and frame connection part.
  • FIG. 19 is a top perspective view showing a harness mounting plate shown in a portion XX of FIG. 18 in an enlarged manner.
  • FIG. 22 is a view showing a rear side frame piece and a front side frame piece of the conventional back frame, showing a state before bonding of the both in a cross section corresponding to the XXII-XXII cross section of FIG. 21. It is a XXII-XXII cross section arrow line view of FIG. 21 which shows the state by which the back side frame piece and front side frame piece in the conventional back frame were joined.
  • the front-rear direction of the vehicle seat is a direction that coincides with the traveling direction of the vehicle, and is hereinafter simply referred to as the front-rear direction.
  • the width direction of the vehicle seat is a direction coincident with the direction along the lateral width of the vehicle, and hereinafter, will be referred to simply as the width direction or the seat width direction.
  • the vertical direction is the vertical direction of the vehicle.
  • the vehicle seat is in use in the vehicle, that is, the configuration when the occupant is seated on the vehicle seat, and the direction described in the following description
  • the position is the direction or position in the above state.
  • FIG. 1 is a perspective view of a vehicle seat S according to a first embodiment of the present invention
  • FIG. 2 is a perspective view showing a seat frame F
  • FIG. 3 is a front frame piece fa and a rear frame piece It is a perspective view showing ra
  • 4A is a view showing the rear side frame piece ra and the front side frame piece fa of the back frame F2 according to the first embodiment, and before bonding of both in the cross section corresponding to the IV-IV cross section of FIG.
  • FIG. 1 is a perspective view of a vehicle seat S according to a first embodiment of the present invention
  • FIG. 2 is a perspective view showing a seat frame F
  • FIG. 3 is a front frame piece fa and a rear frame piece It is a perspective view showing ra
  • 4A is a view showing the rear side frame piece ra and the front side frame piece fa of the back frame F2 according to the first embodiment, and before bonding of both in the cross section corresponding to the
  • FIG. 4B is a view showing a state in which no external force is applied to the front frame piece fa
  • FIG. 4B is a view showing a state in which an external force is applied to the front frame piece fa
  • 4C is a state in which the external force applied to the front frame piece fa is released and the rear frame piece ra and the front frame piece fa are joined to each other.
  • the vehicle seat S includes a seat cushion 1 on which the buttocks of the occupant are placed, a seat back 2 on which the occupant leans, and a headrest 3 for supporting the head of the occupant.
  • the seat cushion 1 and the seat back 2 are configured such that a cushion pad 1a is disposed on the cushion frame F1 and a cushion pad 2a is disposed on the back frame F2, and the cover 1b and 2b are further covered.
  • the headrest 3 has a structure in which a cushion pad 3a is placed on a core material (not shown) and covered with a skin material 3b, and is supported by a headrest pillar J attached to a back frame F2.
  • the seat back 2 is provided with an occupant support member 10 made of a leaf spring which is an elastic material and for supporting the back of the occupant.
  • the occupant support member 10 relates to the relative arrangement of the front frame piece fa described later with the extension 20a of the front frame piece fa, and is provided as a pair on the left and right sides, and has a rectangular shape as described later
  • the lower frame portion 21a described later and the upper frame portion rk described later are fixed by the lower end fixing portion 10a and the upper end fixing portion 10b by rivets.
  • the seat frame F of the vehicle seat S includes a cushion frame F1 that configures the seat cushion 1 and a back frame F2 that configures the seat back 2.
  • the cushion frame F1 and the back frame F2 are made of carbon fiber reinforced plastic (CFRP) as a resin material, and the respective parts are integrally molded by molding.
  • CFRP carbon fiber reinforced plastic
  • the cushion frame F1 is formed of a substantially rectangular frame serving as a framework of the seat cushion 1, and the slide rail device 5 for sliding the vehicle seat S in the front and back direction, and the vehicle seat It is attached to the vehicle body floor via a height adjustment device 6 for moving S in the vertical direction.
  • the back frame F ⁇ b> 2 is supported by the lower end portion thereof being connected to the rear end portion of the cushion frame F ⁇ b> 1 via the reclining device 30. In such a state, the back frame F2 can rotate relative to the cushion frame F1.
  • the material of the cushion frame F1 and the back frame F2 is not limited to CFRP, and may be formed of a resin material other than CFRP, for example, a plastic containing glass fiber or a plastic without carbon fiber. .
  • the method of forming the cushion frame F1 and the back frame F2 is not limited to the case where CFRP is introduced into the mold and integrally molded, and methods other than the mold forming, for example, a sheet made of a resin material
  • the cushion frame F ⁇ b> 1 and the back frame F ⁇ b> 2 may be formed by laminating in accordance with the above.
  • the back frame F2 is joined to the front side of the rear frame piece ra formed substantially in a rectangular shape in front view and the rear frame piece ra, and the lower side is not rectangular but in the sheet width direction It comprises the front frame piece fa which is separated.
  • the front frame piece fa and the rear frame piece ra are combined in the front-rear direction, and the shapes of the respective parts are correspondingly formed so that the outer shapes substantially match.
  • the rear frame piece ra extends to the rear side frame rs that extends vertically including the outer side portion 21b and the left and right ends of the lower frame portion 21a described later on the left and right of the seat width direction, A lower frame portion 21a connecting lower ends of the left and right outer portions 21b and an upper frame portion rk connecting upper ends of the left and right outer portions 21b are mainly formed.
  • a protrusion 21c as a first protrusion extending in the sheet width direction and bulging (projecting) to the front side in an arc shape in cross section is formed at the center.
  • the projecting portion 21 c has a function of dispersing the stress applied to the lower frame portion 21 a when the seated person twists on the seat back 2.
  • a pair of through holes rh which serve as a reference for positioning, is formed on both sides of the protrusion 21c.
  • a pair of pillar portions rj which are U-shaped in cross section and extend upward are formed on the left and right.
  • the front frame piece fa is substantially the same as the lower frame portion 21a of the rear frame piece ra from the front side frame fs extending upward and the lower end portions of the left and right front side frames fs on the left and right of the seat width direction. It extends inward in the sheet width direction at a position that substantially coincides with the lower frame portion 21a of the rear frame piece ra from the rear end of the inner side portion 20b extending in the front and rear direction and the rear side frame piece ra at the matching height. It mainly includes an extending portion 20a that protrudes and an upper frame portion fk that connects upper ends of the left and right front side frames fs.
  • the front side frame fs and the rear side frame rs are collectively referred to as a side frame SF.
  • the side frame SF has a wide shape asymptotically forward and backward from above to below and has a curved shape when viewed from the left and right direction, and the lower end side protrudes forward than the upper end side. It is formed.
  • the front side frame fs is composed of a front face portion 20c and an outer side portion 20d.
  • the outer side surface of the outer side portion 20d is on the inner side surface of the outer side portion 21b of the rear frame piece ra by the adhesive 44 shown in FIG. It is joined.
  • Each of the left and right extension parts 20a has substantially the same shape as the end of the protrusion 21c, and in the state where the front frame piece fa and the rear frame piece ra are overlapped, the end of the protrusion 21c is A protrusion 20 e is formed as a second protrusion along the surface.
  • the protrusion 20 e has a function of dispersing the stress generated by the force applied to the extension 20 a.
  • the position at which the protruding portion 20e and the protruding portion 21c overlap is a standard of the position at which the front side frame piece fa and the rear side frame piece ra overlap, and preliminary positioning can be performed.
  • a pair of through holes fh serving as a reference for accurate positioning is formed on both sides of the protrusion 20e when the front frame piece fa is attached to the rear frame piece ra.
  • the left and right extending portions 20a extend in the seat width direction so as not to reach the lower end fixing portions 10a of the left and right occupant support members 10, in other words, to avoid the lower end fixing portions 10a.
  • the extension 20a is formed, whereby the lower end fixing portion 10a of the occupant support member 10 is attached to the rear frame piece ra by the rivet, or between the rear frame piece ra and the front frame piece fa. Regardless of which of the joining in the sheet longitudinal direction is performed first, the operation is not hindered and the workability is improved.
  • a pair of pillar portions fj having a U-shaped cross section is formed on the left and right.
  • the pillar portion fj of the front frame piece fa is overlapped with the pillar portion rj in the front-rear direction to form a headrest pillar J having a rectangular cross section.
  • the extending portions 20a extending inward in the sheet width direction from the lower ends of the both front side frames fs are spaced apart in the sheet width direction.
  • the extension portions 20a are formed to be separated from each other in the sheet width direction, and the front frame piece fa is made of a flexible material, so that the front side The lower sides of the left and right front side frames fs of the frame piece fa can be opened and closed in the sheet width direction.
  • the extension portions 20a are not necessarily the same. It does not need to be formed separately, that is, the left and right extending portions 20a may be formed in connection.
  • the adhesive 43, 44 is applied to the portion of the rear frame piece ra that comes into contact when the rear frame piece ra and the front frame piece fa overlap.
  • the adhesive 43 is applied to the front surface side of the lower frame portion 21a of the rear frame piece ra and in contact with the extension portions 20a extending from the left and right of the front frame piece fa.
  • the adhesive is extended to the end of the extension 20a between the extension 20a and the lower frame 21a.
  • the adhesive 43 is applied to a position on the front surface of the lower frame portion 21a where the 43 intervenes.
  • the adhesive 43 By applying the adhesive 43 in this manner, in the state where the rear side frame piece ra and the front side frame piece fa are joined, the end portions of the left and right extending portions 20a from the lower side frame portion 21a The stability of the bonding between the two is enhanced by avoiding the application of the force in the direction of separation. Further, the adhesive 44 is applied to two places on the inner side surface side of the outer side portion 21 b and in contact with the outer side portion 20 d on the left and right of the front frame piece fa.
  • the outer side part 20d in the front side frame fs of the both sides of the front side frame piece fa is pinched with the jig
  • the front frame piece fa is moved so that both front side frames fs are disposed inside the rear frame piece ra.
  • the jig T is removed from the front frame piece fa to release the force applied to the front frame piece fa. Then, due to the restoring force of elastic deformation, it moves in the direction shown by the arrow in FIG. 4C, and the back surface of the extension 20a adheres to the adhesive 43, and the outer part 20d adheres to the adhesive 44. .
  • FIG. 5A is a schematic front view showing the VA portion of FIG. 2 of the back frame F2, and FIG. 5B is a cross-sectional view taken along the line VB-VB of FIG. 5A for the back frame F2.
  • FIG. 5A is a cross-sectional view of the back frame F2 taken along the line VC-VC in FIG. 5A.
  • the lower frame portion 21a of the rear frame piece ra is formed with a protrusion 21c at its center, and the extension portion 20a of the front frame piece fa is formed.
  • the protrusion 20 e is formed along the both end portions of the protrusion 21 c.
  • the protrusion 20 e is formed along the protrusion 21 c having an arc-like cross section, and the adhesive 43 is applied between the protrusions 20 c to join the rear frame piece ra and the front frame piece fa. Become more robust. The reason is that the peeling resistance force in the radial direction of the cross-sectional arc shape acts on the portion joined by the adhesive 43 between the protruding portion 21c and the protruding portion 20e of the cross-sectional arc shape.
  • a pair of through holes rh is formed on both sides of the protrusion 21c of the rear frame piece ra, and a pair of through holes fh is similarly formed on both sides of the protrusion 20e of the front frame piece fa. And have been described as being the reference for positioning. Specifically, as shown in FIG. 5B, the positioning pin Pa is inserted through the through hole rh and the through hole fh to position the rear frame piece ra and the front frame piece fa1 in a superimposed manner. It is realized by being fixed by the tool Pb.
  • the front frame piece fa is formed to bulge toward the rear frame piece ra in the vicinity of the through hole fh. That is, the front frame piece fa is formed so as to have a gap other than in the vicinity of the through hole fh in a state of being fixed by the positioning pin Pa.
  • the adhesive 43 can be interposed in the gap portion even in the state of being fixed by the positioning pin Pa, and the bonding strength can be enhanced.
  • Two protrusions 21 d of the rear frame piece rb are provided at the top and bottom, and like the protrusions 21 c in the above embodiment, the protrusions 21 d in the above embodiment form an arc in cross section and extend in the sheet width direction toward the front side. ing.
  • the projecting portion 20f of the front frame piece fa is formed so as to expand in the front side of the seat in an arc shape of an oval so as to straddle the two projecting portions 21d.
  • FIG. 7A and FIG. 7 show configurations and methods by which the rear frame piece rc can be bent in the width direction and attached to the front frame piece fc. This will be described with reference to 7B.
  • FIG. 7A is a cross-sectional view showing the rear frame piece rc and the front frame piece fc in a state before joining of the back frame F3 and applying an external force to the rear frame piece rc.
  • FIG. 7B is a cross-sectional view showing a state in which the external force applied to the rear frame piece rc is released and the rear frame piece rc and the front frame piece fc are joined.
  • the back frame F3 according to the second embodiment is different from the configuration of the back frame F2 according to the first embodiment in the separated portion of the lower central portion of the front frame piece fa and the lower side of the rear frame piece ra.
  • the connection part connected by the frame part 21a is reversely comprised.
  • the configuration of the back frame F3 other than those mentioned below is the same as that of the back frame F2 according to the first embodiment.
  • the back frame F3 is joined to the front side of the rear frame piece rc which is not rectangular as viewed from the front but separated at the lower side as shown in FIG. 7A and the front side of the rear frame piece rc
  • the front frame piece fc is substantially rectangular.
  • the rear frame piece rc extends in the seat width direction from the lower end sides of the left and right side frame portions 21f toward the inner side in the seat width direction, extending to the back of the seat and the side frame portion 21f extending up and down. And an extending portion 21e.
  • the front frame piece fc extends leftward and rightward in the seat width direction, and extends to the back of the seat at a position substantially coincident with the extension 21e of the rear frame piece rc. And a lower frame portion 20g connecting the lower ends of the front side frame fsa.
  • the front side frame fsa is composed of a front surface portion 20i and an outer side portion 20j, and the outer side portion 20j is joined to the inner side surface of the side frame portion 21f of the rear side frame piece rc by an adhesive 44 shown in FIG. Ru.
  • the adhesive 43, 44 is applied to the portion of the front frame piece fc that abuts when the rear frame piece rc and the front frame piece fc are overlapped. Specifically, the adhesive 43 is applied to two places on the back side of the lower frame part 20g of the front frame piece fc and in contact with the front face of the extension part 21e extending from the left and right of the rear frame piece rc Do. In particular, in the state where the rear side frame piece rc and the front side frame piece fc shown in FIG. 7B are joined, the adhesive is extended to the end of the extending portion 21e between the extending portion 21e and the lower frame portion 20g.
  • the adhesive 43 is applied to the position of the rear surface of the lower frame portion 20g where the 43 is to be interposed. By applying the adhesive 43 in this manner, in a state in which the rear frame piece rc and the front frame piece fc are joined, the lower frame portion 20g is provided at the end of the left and right extension portions 21e. The stability of the bonding between the two is enhanced by avoiding the application of the force in the direction of separation. Further, the adhesive 44 is applied to two places on the outside surface side of the outside portion 20j of the front side frame fsa and in contact with the inside surface of the side frame portion 21f of the rear frame piece rc.
  • a jig T illustrated in a simplified manner is pressed against the inner surfaces of the side frame portions 21f on both sides of the rear side frame piece rc, and the side frame portions 21f on both sides are deformed outward as shown by arrows in FIG. 7A.
  • the rear frame piece rc is moved so that both side frame portions 21 f are disposed outside the front frame piece fc.
  • the jig T is removed from the rear frame piece rc to release the force applied to the rear frame piece rc. Then, by the restoring force of elastic deformation, it moves in the direction shown by the arrow in FIG. 7B, and the front surface of the extension 21e adheres to the adhesive 43 and the side frame 21f adheres to the adhesive 44. Become.
  • the back surface of the lower frame portion 20g of the front frame piece fc and the extension portion 21e of the rear frame piece rc Bonding with the front surface and bonding with the outer surface of the front side frame fsa of the front frame piece fc and the inner surface of the side frame portion 21f of the rear frame piece rc can be performed substantially simultaneously. Therefore, when the front frame piece fc is superimposed on the rear frame piece rc, the adhesive 44 is pushed out by the front frame piece fc, so that it is possible to avoid the occurrence of deviation in adhesion by the adhesive 44.
  • the left and right extending portions 20a extend in the seat width direction to a length that does not reach the lower end fixing portions 10a of the left and right occupant support members 10 in this embodiment. It explained as a thing.
  • the extension part according to the present invention is not limited to such a form, and the work of attaching the passenger support member to the rear side frame piece, or joining of the rear side frame piece and the front side frame piece in the seat longitudinal direction It should be in a form that does not inhibit For example, even if the left and right extending portions 20a extend in the seat width direction beyond the lower end fixing portions 10a of the left and right occupant support members 10, a part is formed so as to avoid the lower end fixing portions. Just do it.
  • Vehicle seat according to another example equipped with a reclining device it is possible to reduce the weight and improve the fuel consumption by being molded from a resin material, and work to join the front frame pieces fa, fb, fc and the rear frame pieces ra, rb, rc It is possible to improve the efficiency of
  • a reclining device for rotatably supporting a seat back having a back frame as a frame with respect to a seat cushion, and a portion to which this reclining device is attached
  • the side frame portion constituting the back frame is formed of a resin material (see Japanese Patent Application Laid-Open No. 2003-182417).
  • the entire back frame is formed as an integral member by a composite material having a thermoplastic matrix and a reinforcing fiber, and is equivalent to a side frame portion.
  • a hinge device corresponding to a reclining device is overmolded.
  • a vehicle seat which facilitates the assembling operation while improving the mounting rigidity of the reclining device (member to be assembled) with respect to the seat frame serving as the framework in the manufacturing process.
  • a vehicle seat in which the rigidity of the seat frame made of a resin material and the mounting rigidity of the reclining device are further improved will be described.
  • a vehicle seat S according to an embodiment as a first configuration example will be described with reference to FIGS. 8 to 15 in addition to FIGS. 1 and 2.
  • This embodiment is a vehicle seat S provided with a reclining device 30 rotatably supporting a resin-made back frame F2, and the connection bracket 50 for connecting the reclining device 30 to the back frame F2 and a spring hook
  • the present invention relates to the invention of a vehicle seat S including a stop member 60 and positioning pins 70 and 80 for positioning the spring locking member 60 with respect to the connection bracket 50.
  • a part of the positioning pins 70 and 80 is joined to the spring locking member 60 by a single laser welding process from the back frame F 2 contact surface side of the connection bracket 50.
  • the present invention relates to a vehicle seat S characterized in that a portion is joined to a spring locking member 60.
  • shaft holes (not shown) for inserting the pivot shaft 40 of the reclining device 30 are formed at the lower end portions of the side frames SF and on the left and right side surfaces.
  • the pivot shaft 40 is disposed between the left and right side frames SF with the axial direction extending in the lateral direction, and the extension end of the pivot shaft 40 is laterally outward from the outer surface of the side frame SF through the axial hole. Projected into The projecting end of the pivoting shaft 40 is assembled with the reclining device 30 through the connection bracket 50, and the operating lever 42 shown in FIG. 2 is attached to a position outside the reclining device 30.
  • the number of reclining devices 30 may be disposed on both sides in the left-right direction of the vehicle seat S, or may be disposed on only one side in the left-right direction.
  • the front side frame fs is made of a resin molding having a substantially crank-shaped cross section elongated in the vertical direction, and a front portion 20c which is a front portion of the side frame SF and left and right outer sides of the front portion 20c. It is comprised from the outer side part 20d bent back from the edge part, and the inner side part 20b bent back from the left and right inside edge part of the front face part 20c.
  • the rear side frame rs is formed of a resin molding having a substantially L-shaped cross section elongated in the vertical direction, and the left and right outer end portions of the frame rear wall portion 21g and the frame rear wall portion 21g to be the rear portion of the side frame SF.
  • the inner portions 20b of the left and right front side frames fs extend rearward in such a manner as to be inclined inward in the left and right directions from the front side. Therefore, when the front frame piece fa is assembled to the rear frame piece ra, the front frame piece fa can be connected while being bent to the left and right, and the assemblability of the back frame F2 is improved.
  • a connection bracket 50 for connecting the side frame SF and the reclining device 30 is attached to the left and right outer surfaces of the side frame SF as shown in FIG.
  • a plurality of positioning hole portions 26c for attaching and positioning the connection bracket 50 are formed on the left and right outer side surfaces of the rear side frame rs in the side frame SF.
  • the portion of the side frame SF to which the connection bracket 50 is attached is formed to be thicker than the portion to which the connection bracket 50 is attached. Therefore, the rigidity of the side frame SF and the mounting rigidity of the reclining device 30 attached to the side frame SF can be secured.
  • the reclining device 30 corresponds to a member to be assembled in the supplementary note described later, and as shown in FIG. 8, comprises a device for rotatably connecting the back frame F2 to the cushion frame F1. It is attached to the side via a connection bracket 50.
  • the reclining device 30 mainly includes a reclining device main body 31 which is driven when rotating the back frame F2, and a housing case 32 which houses the reclining device main body 31 There is.
  • the reclining device main body 31 includes a slide lock member 35 as shown in FIG. 12, and the lock gear portion 34 attached to the slide lock member 35 is engaged by the movement movement of the slide lock member 35 in the vertical direction. 33 will be engaged or disengaged. Switching the state of the back frame F2 between the locked state fixed to the cushion frame F1 and the unlocked state that can be rotated relative to the cushion frame F1 by such a reclining device main body 31 It is possible.
  • the housing case 32 is formed of a metal case for housing the reclining device main body 31 and has a substantially cylindrical outer shape, and as shown in FIG. 10 or 11, the outer case piece 32a and the inner case piece 32b It is configured in combination.
  • the outer case piece 32a has its outer peripheral surface joined to the cushion frame F1 side, and as shown in FIG. 12, an engaging gear 33 is formed on the inner peripheral surface,
  • the slide lock member 35 is disposed inside.
  • the inner case piece 32b is joined to the back frame F2 via the connection bracket 50, and on the inner side thereof, a pair of path defining portions 36, 36 defining the moving path of the slide lock member 35 is a slide lock member 35. It is arranged in a state of sandwiching the. Further, a cam surface 37 is formed on the slide lock member 35, and the cam body 38 in contact with the cam surface 37 is fixed to the rotating shaft 40 which penetrates the inner case piece 32b and enters the case. Is attached.
  • the slide lock member 35 is disposed at a position where the lock gear portion 34 and the engagement gear 33 engage with each other at normal times, and the back frame F2 Lock the lock status.
  • the operation lever 42 shown in FIG. 2 is operated in such a state, the rotation shaft 40 is rotated by the operation, and the cam body 38 is rotationally moved in conjunction with this, and the cam in a rotation state
  • the separation of the body 38 from the cam surface 37 causes the sliding lock member 35 to move between the path defining portions 36 and 36 in a direction away from the engagement gear 33.
  • the lock gear portion 34 is disengaged from the engagement gear 33, and the state of the back frame F2 is unlocked.
  • the occupant can tilt the seat back 2 backward, and when the control lever 42 is released when the back tilt angle reaches a desired angle, the spring 39
  • the cam body 38 is returned to the original position by the biasing force of.
  • the slide lock member 35 moves between the path defining portions 36, 36 toward the engagement gear 33 and returns to the locked position.
  • the lock gear portion 34 engages with the engagement gear 33 again, and the state of the back frame F2 returns to the locked state.
  • the reclining device 30 is attached to the back frame F2 by being bonded to the connection bracket 50 with an adhesive (not shown) as shown in FIG.
  • a fitting hole 32b is formed on the outer surface of the connection bracket 50, which will be described later, with a fitting projection 32c shown in FIG.
  • the connection bracket 50 is bonded with an adhesive (not shown).
  • a spiral spring 41 is latched on the lower end portion of the back frame F2 to which the reclining device 30 is attached and the rear end portion of the cushion frame F1.
  • the spiral spring 41 corresponds to a biasing spring in the supplementary note to be described later, and when the state of the back frame F2 is in the unlock state and the seat back 2 is in the rearward tilt state, The frame F2 is urged to rotate to the cushion frame F1 side.
  • One end 41a of the spiral spring 41 is provided on the back frame F2 side, and is held by a spring locking member 60 extending outward in the left-right direction, and the other end 41b is provided on the cushion frame F1 side. It is latched by the spring latching
  • connection bracket 50 corresponds to a first member in the supplementary note described later, and as shown in FIG. 10, is formed of a substantially U-shaped metal plate for connecting the side frame SF and the reclining device 30. It is arranged to hold the
  • the connection bracket 50 includes a main body wall 51 attached to the left and right outer side surfaces of the side frame SF, a front wall 52 extending from the front end to the left and right from the front end, and an upper end side of the main body wall 51. And mainly includes a rear wall 53 extending inward from the rear end to the left and right.
  • the front wall 52 is attached to the front surface 20c of the front side frame fs, and the rear wall 53 is attached to the frame rear wall 21g of the rear side frame rs. As shown in FIG.
  • the front wall 52 and the rear wall 53 overlap with the front side frame fs and the rear side frame rs, respectively, and are adhesively bonded by an adhesive 45 and further mechanically bonded by a fastening member.
  • the rigidity of the side frame SF and the mounting rigidity of the reclining device 30 are enhanced.
  • the main body wall portion 51 is a plate member interposed between the outer side portion 21 b of the rear side frame rs and the accommodation case 32 of the reclining device 30 in the side frame SF. As shown in FIGS. 13A and 13B, the main body wall 51 is formed in the central portion, and is close to the shaft hole 51a for allowing the pivot shaft 40 of the reclining device 30 to penetrate and the shaft hole 51a, A plurality of fitting holes 51b formed on the outer side in the radial direction, for fitting the storage case 32 of the reclining device 30, and above the shaft hole 51a, for positioning the spring locking member 60 And a second hole 51d formed on the radially outer side of the shaft hole 51a for positioning with respect to the side frame SF.
  • At least a part of the outer peripheral portion of the shaft hole 51a of the main body wall 51 is bent inward to the left and right and is fitted into the shaft hole of the side frame SF, and the connection bracket 50 is positioned with respect to the side frame SF. . Further, the mounting rigidity of the reclining device 30 is secured.
  • the fitting hole 51b is formed in four directions so as to surround the shaft hole 51a in a circular shape, and is fitted with a fitting protrusion 32c formed on the outer surface of the inner case piece 32b of the storage case 32 shown in FIG. By doing this, the reclining device 30 is positioned with respect to the connection bracket 50.
  • the first hole 51 c is a portion to which the spring locking member 60 is attached, and two substantially circular through holes are formed at predetermined intervals in the front-rear direction.
  • the spring locking member 60 is attached to the connection bracket 50 by fitting a positioning pin 70 described later toward the spring locking member 60 from the first hole 51 c side.
  • the second hole 51 d is a portion attached to the side frame SF, and a plurality of second holes 51 d are formed as a substantially circular through hole at a predetermined interval so as to surround the shaft hole 51 a.
  • the main body wall 51 is attached to the side frame SF by inserting positioning pins 80 described later into the second hole 51 d from the left and right sides.
  • the main body wall 51 is adhesively bonded to the left and right outer portions 21b of the side frame SF by the adhesive 45, and further by a plurality of positioning pins 80 arranged so as to surround the pivot shaft 40 of the reclining device 30. It is mechanically joined. Then, two substantially circular concave portions 54 recessed toward the side frame SF are formed on the outer surface of the connection bracket 50 at a position different from the upper portion and to which the positioning pin 70 and the positioning pin 80 are attached. It is done. Therefore, the gap between the adhesive 45 can be secured by bringing the side frame SF into contact with the concave portion 54 of the connection bracket 50, and the adhesive 45 is uniformly applied to the overlapping surface of the side frame SF and the connection bracket 50. Can be applied to
  • the spring locking member 60 corresponds to a second member in the supplementary note described later, and is a substantially L-shaped sheet metal member for locking one end of the spiral spring 41. As shown in FIGS. 13A and 13B, the spring locking member 60 extends from the side of the side frame SF to the left and right outside, and holds a spring locking portion 61 that locks one end of the spiral spring 41; And an attachment portion 62 which is attached to the connection bracket 50 and extends downward from the left and right inner end portions thereof.
  • the mounting portion 62 is formed with a first hole 62 a for positioning with respect to the connection bracket 50.
  • the two first hole portions 62a are formed as a substantially circular through hole at predetermined intervals in the front-rear direction, and communicate with each other in a state of being joined to the first hole portion 51c of the connection bracket 50. .
  • the positioning pin 70 is inserted from the left and right inner side surfaces of the connection bracket 50 and fitted in the first hole 51 c and the first hole 62 a, whereby the spring locking member 60 is attached to the connection bracket 50. It is attached.
  • the spring locking member 60 is welded to the left and right outer side surfaces of the connection bracket 50, and mechanically joined by the plurality of positioning pins 70 as described above. Therefore, the mounting rigidity of the spring locking member 60 is improved.
  • the positioning pin 70 corresponds to a first positioning member in the appending to be described later, and is a member for positioning the spring locking member 60 with respect to the connection bracket 50. As shown in FIGS. 13A and 13B, It has a cylindrical shape.
  • the positioning pin 70 is, as shown in FIG. 14A, a first fitting portion 71 fitted in the first hole portion 51 c of the connection bracket 50 and a second fitting portion fitted in the first hole portion 62 a of the spring locking member 60.
  • a fitting portion 72 and a frame fitting portion 73 fitted to the positioning hole portion 26c shown in FIG. 10 of the side frame SF are provided.
  • Each of the first fitting portion 71, the second fitting portion 72, and the frame fitting portion 73 has a substantially circular cross section and extends in the left-right direction.
  • the cross-sectional area of the second fitting portion 72 is narrower than the cross-sectional area of the first fitting portion 71, and the cross-sectional area of the frame fitting portion 73 is narrower than the cross-sectional area of the first fitting portion 71. It is formed wider than the cross-sectional area of the part 72.
  • the positioning pin 70 is inserted from the left and right inner side surfaces of the connection bracket 50 toward the spring locking member 60.
  • Positioning pin 80 corresponds to a second positioning member in the supplementary note described later, and is a member for positioning connecting bracket 50 with respect to side frame SF, and as shown in FIGS. 13A and 13B, has a substantially cylindrical shape having a flange. It consists of The positioning pin 80 is, as shown in FIG. 14A, a frame fitted in each of the second hole 51 d of the connection bracket 50 and the positioning hole 26 c (corresponding to the second hole) shown in FIG. 10 of the side frame SF. A fitting portion 81 and an abutting portion 82 which abuts on the left and right outer surface sides of the connection bracket 50 and which has a larger cross-sectional area than the frame fitting portion 81 are provided. The positioning pin 80 is inserted toward the side frame SF from the left and right outer surface side of the connection bracket 50.
  • an operation of assembling the spring locking member 60 to the connection bracket 50 is performed. Specifically, as shown in FIG. 14A, the first hole portion 51c of the connection bracket 50 and the first hole portion 62a of the spring locking member 60 are placed in communication with each other and positioned in these hole portions The pin 70 is inserted from the right and left inner side of the connection bracket 50 and assembled. At this time, as shown in FIG. 14B, the first fitting portion 71 of the positioning pin 70 is fitted with the first hole 51c, and the second fitting portion 72 is fitted with the first hole 62a. Become. Then, the first fitting portion 71 is disposed in contact with the peripheral portion of the first hole 62 a in the spring locking member 60. In addition, the contact surfaces of the connection bracket 50 and the first fitting portion 71 with the side frame SF, that is, the left and right inner side surfaces are arranged substantially in the same plane.
  • the positioning pin 80 is assembled in the same manner. Specifically, the positioning pin 80 is inserted into the second hole 51 d of the connection bracket 50 from the left and right outside of the connection bracket 50 and assembled. At this time, as shown in FIG. 14B, the frame fitting portion 81 of the positioning pin 80 is fitted with the second hole 51d. Then, the contact portion 82 is disposed in contact with the peripheral portion of the first hole 62 a in the left and right outer side surfaces of the spring locking member 60.
  • connection bracket 50 the laser welding operation is performed. Specifically, as shown in FIG. 14B, by laser welding from the left and right inner side of the connection bracket 50, a part of the first fitting portion 71 of the positioning pin 70 is melted and the first of the spring locking members 60 is While being joined to the peripheral portion of the one hole 62 a, a part of the connection bracket 50 is melted and joined to the spring locking member 60. Furthermore, in the same laser welding process, the peripheral portion of the second hole 51 d of the connection bracket 50 is melted and joined to the contact portion 82 of the positioning pin 80.
  • the connection bracket 50, the spring locking member 60, the positioning pin 70, and the positioning pin 80 can be respectively welded and fixed by one laser welding process.
  • the reclining device 30 is assembled to the connection bracket 50 to which the spring locking member 60 is fixed. Specifically, the fitting projections 32c of the reclining device 30 shown in FIG. 11 are inserted from the left and right outer directions into the fitting holes 51b of the connecting bracket 50 shown in FIGS. 13A and 13B and assembled. At this time, the attachment rigidity of the reclining device 30 is improved by applying an adhesive (not shown) to the contact surfaces of the left and right outer surfaces of the connecting bracket 50 and the left and right inner surfaces of the reclining device 30.
  • connection bracket 50 fixing the reclining device 30 to the side frame SF is performed. Specifically, as shown in FIG. 15A, in the connection bracket 50 in the state where the positioning pins 70 and 80 are welded and fixed, the positioning hole portion 26c having the frame fitting portion 73 and 81 on the outer surface of the side frame SF. Insert from the left and right outside and assemble. At this time, the adhesive 45 is applied to the contact surfaces of the left and right inner side surfaces of the connection bracket 50 and the left and right outer side surfaces of the side frame SF, thereby improving the attachment rigidity of the reclining device 30 to the side frame SF. There is.
  • the front wall 52 and the rear wall 53 of the connection bracket 50 are assembled to the front and rear surfaces of the side frame SF, respectively, to complete the assembling operation of the reclining device 30 to the side frame SF.
  • the cushion frame F1 the operation lever 42 shown in FIG. 2, and the spiral spring 41 are attached to the left and right outside of the reclining device 30 in this order.
  • the front frame piece fa and the rear frame piece ra are separately resin-molded to constitute the back frame F2 for the purpose of facilitating the molding operation, but the invention is not limited thereto.
  • the back frame F2 may be formed as an integral part.
  • the fixing means of the side frame SF and the connection bracket 50 and the fixing means of the reclining device 30 and the connection bracket 50 are not particularly limited, and bonding with adhesive, welding, bolting or riveting It is possible to suitably use known fixing means such as fastening, and a plurality of fixing means may be combined to improve the fixing strength.
  • the reclining device 30 is configured as an assembled member assembled to the side surface (assembled portion) of the back frame F2 in the seat width direction, but is not limited thereto.
  • the target can be changed as appropriate.
  • a well-known component to be assembled to a predetermined portion (assembly portion) of the cushion frame F1 or the back frame F2 in the seat frame F may be widely applied as a member to be assembled.
  • connection bracket 50 and the spring locking member 60 are formed of a metal material, but the invention is not limited thereto, and may be formed of a resin material or another known material.
  • weight reduction of the vehicle seat can be achieved by forming the connection bracket 50 and the spring locking member 60 from a resin material.
  • connection bracket 50 includes the front wall 52 and the rear wall 53, and as shown in FIG. 10, the front wall 52 is attached to the front surface 20c of the front side frame fs, and the rear wall Although 53 is attached to the flame
  • the front end side of the connection bracket 50 is preferably attached to at least the front side frame fs, and the rear end side is preferably attached to at least the rear side frame rs for securing rigidity, but the shape, arrangement, and configuration can be changed as appropriate It is.
  • connection bracket 50 and the spring locking member 60 are configured as a first member and a second member for connecting the reclining device 30 to the back frame F2, but the invention is not limited thereto.
  • the objects of the first member and the second member can be changed as appropriate.
  • the first member and the second member may be widely applied as a known component and a connecting member for attaching a known device to the cushion frame F1 or the back frame F2.
  • connection bracket 50 and the spring locking member 60 are joined by laser welding
  • the present invention is not limited to this, spot welding, ultrasonic welding, etc., instead of laser welding, may be used as the base material. You may use suitably the well-known welding method which melt
  • the contact surfaces of the connection bracket 50 and the first fitting portion 71 of the positioning pin 70 with the side frame SF are formed to be substantially the same plane.
  • they do not necessarily have to be substantially the same plane, and can be changed appropriately by providing a level difference or the like.
  • connection bracket 50 to which the spring locking member 60 is attached and a portion of the reclining device 30 are disposed at a position where they overlap when viewed from the seat side.
  • the vehicle seat S according to the present configuration example has been mainly described.
  • the above embodiment is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. It goes without saying that the invention can be modified and improved without departing from the spirit of the invention and the invention includes the equivalents thereof.
  • the shape, arrangement, and configuration of the back frame F2, the reclining device 30, the connection bracket 50, the spring locking member 60, and the positioning pins 70 and 80 described in the above embodiment are merely an example. Therefore, the invention is not limited.
  • at least the side frame portion of the back frame F2 to which the reclining device 30 is attached may be made of a resin material.
  • the invention embodied in the first configuration example may also be described as the following supplementary notes.
  • (Supplementary Note 1) A seat frame serving as a framework of a vehicle seat, and an assembled member assembled to an assembled portion provided to the seat frame; A first member and a second member interposed between the assembling portion and the assembled member for assembling the assembled member and joined together; A hole formed in each of the first member and the second member and in communication with each other when the first member and the second member are joined; And a positioning member for positioning the second member with respect to the first member by fitting into the hole.
  • the member to be assembled is attached to the side of the first member in contact with the second member in a state in which a portion thereof is engaged with the second member,
  • the positioning member includes a first fitting portion that fits into the hole of the first member, and a second fitting portion that fits into the hole of the second member and has a narrower cross-sectional area than the first fitting portion.
  • a fitting portion and is inserted into the hole from the side opposite to the contact surface side of the first member, By welding from the opposite side to the contact surface side of the first member, a part of the first fitting portion melts and is joined to the second member, and a part of the first member Is melted and joined to the second member.
  • the member to be assembled is a reclining device rotatably connecting a back frame serving as a framework of a backrest to a cushion frame serving as a framework of a seating portion of the vehicle seat,
  • the back frame constitutes a side in the sheet width direction, and includes a side frame portion made of a resin material,
  • the vehicle seat according to claim 2 wherein the first member and the second member are attached to a lateral surface of the side frame portion in the seat width direction.
  • the first member is a connection bracket interposed between the back frame and the reclining device,
  • the reclining device includes a biasing spring that biases the back frame toward the cushion frame about a pivot shaft of the reclining device.
  • the weld joint is a laser weld joint
  • Additional feature 2 to feature of the present invention is that the overlapping portion of the first fitting portion and the second member and the overlapping portion of the first member and the second member, which are joined, form a flat surface, respectively.
  • the vehicle seat according to any one of 5.
  • the positioning member extends from the first member side toward the back frame side, and is fitted in a hole formed in the back frame. Vehicle seat.
  • the hole is a first hole
  • the positioning member is a first positioning member, and A second hole formed in each of the first member and the back frame and in communication with each other when the first member and the back frame are joined; And a second positioning member for positioning the first member with respect to the back frame by fitting into the second hole.
  • the second positioning member is inserted into the second hole from the side of the first member in contact with the second member, and is fitted into the second hole of each of the first member and the back frame.
  • a contact portion which is in contact with the contact surface side of the first member and has a cross-sectional area larger than that of the frame connection portion.
  • the first member includes a body wall attached to the seat width direction outer surface of the back frame, a front wall extending continuously in the seat width direction continuously from the front end side of the body wall, and And a rear wall continuously extending inward in the sheet width direction from the rear end side,
  • the front wall is attached to the front of the back frame, and the rear wall is attached to the back of the back frame.
  • the second member is It is joined to the sheet width direction outside surface of the body wall,
  • the vehicle according to any one of appendices 2 to 9, characterized in that the main body wall is disposed at a height overlapping the position where the front wall and the rear wall are provided in the vertical direction. Sheet.
  • the first member and the second member which are interposed between the assembling portion and the assembled member for assembling the assembled member and are joined to each other, and the first member Since the positioning member for positioning the two members is provided, the assembling operation of the first member and the second member functioning as the connecting member is facilitated by the positioning member. Further, the assembled member is attached to the side of the first member in contact with the second member, and the positioning member is inserted into the hole from the side opposite to the side of the contact of the first member. Therefore, for example, in the state where the positioning member is temporarily assembled in each hole of the first member and the second member, the assembled member can be assembled from the side opposite to the positioning member side, suppressing interference with each other The main assembly operation can be facilitated.
  • the positioning member includes a first fitting portion that fits into the hole of the first member, and a second fitting portion that fits into the hole of the second member and has a narrower cross-sectional area than the first fitting portion.
  • Part of the first fitting portion is melted and joined to the second member in a single welding process by welding from the opposite side to the second member contact surface side of the first member. Since part of the first member melts and is joined to the second member, the assembling work of these members becomes easy, the assembling accuracy is improved, and the assembling cost can be reduced.
  • welding is performed from the side opposite to the assembled member contact surface side of the first member, interference with the assembled member can be suppressed, and the assembling operation is further facilitated.
  • the rigidity of the 1st member and the 2nd member which function as a connection member for connecting a member to be assembled with a seat frame is improved by the above-mentioned welding, the attachment rigidity of a member to be assembled to a seat frame can be improved. . Therefore, it is possible to provide a vehicle seat that facilitates the assembling operation while improving the mounting rigidity of the assembled member to the seat frame in the manufacturing process.
  • the attachment operation can be made easy.
  • the side frame portion made of a resin material, it is possible to achieve weight reduction for improving the fuel efficiency of the vehicle, and as described above, the first member and the first member functioning as a connecting member By providing two members, the rigidity of the side frame portion and the mounting rigidity of the reclining device can be improved.
  • the attachment nature of a reclining device to a back frame improves by interposing a connecting bracket to which a spring stop member was joined.
  • the mounting accuracy is also improved.
  • the first member to be welded and the first fitting portion of the positioning member form a flat surface
  • the welding conditions of the first member and the positioning member can be made uniform, and welding can be facilitated in a single step.
  • the joint portion after laser welding forms a flat surface without forming unevenness. Therefore, the subsequent assembly work of the component parts and the assembly accuracy can be improved. Moreover, since there is little welding deformation, the enlargement of the vehicle seat can be suppressed.
  • the contact surface side of the reclining device among the first members Since it welds from the opposite side, it can control that a reclining device interferes at the time of welding.
  • the positioning member functions as positioning when attaching the first member to the back frame, and can also perform the function of enhancing the connection rigidity between the back frame and the first member.
  • the second positioning member for positioning the first member with respect to the back frame is provided, and the first member and the second member are joined in one welding step, and the first Not only the positioning member and the second member are joined, but also the first member and the second positioning member are joined, so the assembling work of these members becomes easier, the assembling accuracy is improved, and the assembling cost is increased. It can be lowered.
  • the first member holds the back frame in the seat longitudinal direction, and the rigidity of the back frame and the mounting rigidity of the reclining device are improved.
  • the second member is joined to the portion of the first member having relatively increased rigidity, the mounting rigidity of the reclining device engaged with the second member is further improved.
  • Vehicle seat according to another example including a seat cushion suitable for holding the skin terminal
  • the skin terminal of the skin material covering the seat cushion is normally fixed in a manner such that it is hooked on a hooking wire bridged on the seat cushion or a cushion spring bridged in the seat width direction.
  • Japanese Utility Model Laid-Open Publication No. 6-15599 discloses a device in which a seat cushion is covered with a skin material by holding a slit formed on the skin end on a spring installed in the seat cushion.
  • the rigidity required for the cushion frame may not be maintained.
  • the invention relates to a seat cushion and a seat for a vehicle according to an embodiment as a second configuration example, which has high productivity, can stabilize the fixing of the skin terminal, and is reduced in weight.
  • the sheet S will be described.
  • FIG. 17 is a perspective view showing a trim cord 9a stitched to the back skin 1b of the seat cushion 1 and the back skin 1b of the seat.
  • FIG. 17 is a cross-sectional view taken along the line XVII-XVII of the seat cushion 1 of FIG. 1, and is a schematic cross-sectional view showing a hooking portion of the surface material 1b and the cover 4g.
  • the trim cord 9a corresponds to a mounting portion in the appendage described later, is for attaching the skin terminal 1ba to the hooking piece 4k described later, is made of an elastic resin material, and has a substantially J-shaped cross section.
  • the trim cord 9a extends in the sheet width direction along the skin terminal 1ba and is formed slightly shorter than the sheet width direction length of the central portion 4ic of the front notch 4i described later.
  • One end side of the trim cord 9a is sewn to the skin terminal 1ba, and the other end has a hook 9c formed by being folded like a tip of a fishing hook.
  • the trim cord 9a is inserted through a central portion 4ic of a front notch 4i of a frame connecting portion 4e described later from the front toward the rear.
  • the hook 9c is disposed at the rear of a hooking piece 4k, which will be described later, facing the lower side of the front notch 4i.
  • the trim cord 9a is attached to the hooking piece 4k so as to sandwich the hooking piece 4k described later between the hook 9c and the base end, and the attached state is maintained by elasticity. Even if a force is applied to the surface material 1b in the pulling direction of the trim cord 9a, the hook 9c is hooked to the upper end 4ka of the hooking piece 4k described later, from the cover 4g, that is, cushion frame F1. It is prevented that the surface material 1b from is removed.
  • FIG. 18 is a top view of the seat frame F shown in FIG.
  • FIG. 19 is a rear perspective view showing a part of the back frame F2 and the frame connection part 4e.
  • the cushion frame F1 includes left and right side frame portions 4c provided on both sides in the width direction of the seat, a front frame portion 4d provided in front of the seat, and a frame connecting portion 4e connecting the left and right side frame portions 4c. It has a substantially rectangular frame body.
  • the cushion frame F1 is made of a resin material such as glass fiber-filled polypropylene (PPG), and is molded by an injection molding method or another molding method.
  • PPG glass fiber-filled polypropylene
  • the cushion frame F1 is configured to be slidable in the seat longitudinal direction with respect to a vehicle body floor (not shown) by the slide rail device 5 shown in FIGS. As shown in FIG. 17, the slide rail device 5 is composed of a lower rail 5l fixed to the vehicle floor and an upper rail 5u slidable in the front and back direction of the seat with respect to the lower rail 5l.
  • the side frame portions 4c are disposed left and right and extend in the front-rear direction, and the width of the vehicle seat S is defined by the distance between the left and right.
  • the left and right side frame portions 4c are provided with a rear side plate spring 7 and a front side plate spring 8 provided on the front and rear sides. More specifically, the side fixing portions 7a and 8a of the rear side plate spring 7 and the front side plate spring 8 are fixed. It is done.
  • the rear plate spring 7 has a frame-like support 7c at the center.
  • the lateral fixing portion 7a is formed to have a narrower width in the seat longitudinal direction than the frame shaped support portion 7c.
  • the front frame portion 4d is slightly inclined in the direction opposite to the back frame F2 side, and is integrally formed with the side frame portion 4c on both sides, in the vicinity of the thighs of the seated person Support.
  • the corners 4da on both sides of the front frame portion 4d are formed in a large rounded and R-chamfered shape.
  • the material is saved by the volume integral of the chamfered portion, and the weight reduction of the front frame portion 4d is realized.
  • the working space above the slide rail device 5 is Workability is improved because only the chamfered portion can be widened.
  • the frame connecting portion 4e is provided on the rear side of the seat, and extends substantially perpendicular to the sheet width direction, in other words, the extending direction of the left and right side frame portions 4c, and both ends are the left and right side frame portions 4c. Is integrally connected to the The frame connecting portion 4e is composed of a cylindrical connecting shaft 4f extending in the seat width direction and a cover 4g which covers a part of the connecting shaft 4f.
  • connection shaft 4f is formed in a pipe shape and is connected to a high link (not shown), and both ends thereof are rotatably supported by the left and right side frame portions 4c.
  • Both sides of the cover 4g are integrally connected to the left and right side frame portions 4c.
  • the cover 4g has a hooking piece 4k (described later) to which the trim cord 9a is hooked and which will be described later on the front side, and a cover upper part 4h described later for separating the cushion pad 1a mounted on the cushion frame F1 from the connecting shaft 4f On the upper side.
  • the cover 4g is on the front side, and extends upward in the sheet width direction facing upward to the hooking piece 4k described later
  • a notch 4i is provided, and a rear notch 4j extending in the sheet width direction is provided on the rear side across the cover upper portion 4h described later from the front notch 4i as shown in FIGS.
  • the front notch 4i extends in the sheet width direction with a predetermined width, and includes a central portion 4ic and both end sides 4is. Both end sides 4is of the front side notch 4i are formed narrower than the central portion 4ic, and lower edges of the both end sides 4is are formed higher than lower edges of the central portion 4ic.
  • the cover 4g has the front side notch 4i and the rear side notch 4j, and the material cost can be reduced by being formed of a small amount of material. Further, as described above, the front notch 4i and the rear notch 4j are formed by injection molding or the like by forming the cushion frame F1 including the cover 4g, so that the cover 4g is formed without being separately processed. It will be formed. Therefore, it is not necessary to hold the skin material 1b on a spring with low mounting stability, and there is no need to prepare a separate wire (not shown) for holding the skin material 1b. Furthermore, no new work such as pressing for forming the hooking portion is required. For this reason, it is easy to hold the surface material 1b, and the workability is improved.
  • the hooking piece 4k corresponds to a hooked portion in the supplementary note described later, and the hook 9c of the trim cord 9a is hooked as described above.
  • the hooking piece 4k is on the lower side facing the front side notch 4i, and as shown in FIG. 17A, protrudes downward with respect to the connecting shaft 4f and is formed to extend in the sheet width direction.
  • the hooking pieces 4k are concentric with the cross-sectional center of the connecting shaft 4f and partially overlap the cover upper portion 4h described later, and the side cross-sections of the cover 4g are the front notch 4i and the rear side notch
  • the virtual circle C is formed to project downward with respect to a virtual circle C assumed to be a circle without 4 j.
  • the base end side of the trim cord 9a is in contact with the lower end 4kb of the hooking piece 4k.
  • the trim cord 9a is in contact with the lower end 4kb of the hooking piece 4k, thereby separating the skin material 1b sewn to the trim cord 9a from the rotating connection shaft 4f, and these abutments To prevent smooth rotation of the connecting shaft 4f.
  • the same effect can be achieved even with the skin material 1b that is not in contact with the trim cord 9a but in contact with the lower end 4kb of the hooking piece 4k.
  • the hooking piece 4k is formed such that its lower end 4kb is disposed above the upper rail 5u.
  • the hooking piece 4k is formed in this manner, so that the slide rail device 5 including the upper rail 5u does not get in the way when hooking the skin material 1b to the hooking piece 4k. Efficiency can be improved.
  • the lower end 4 kb of the hooking piece 4 k is disposed above the upper rail 5 u in this way, a space for the passenger's foot or the like behind the seat can be secured below the hooking piece 4 k. , You can make the ride of the vehicle comfortable.
  • the cover upper portion 4h is on the opposite side of the hooking portion 4k with the front notch 4i interposed therebetween, is formed spaced apart from the connecting shaft 4f by a predetermined distance, and extends in the sheet width direction. Both sides are integrally connected to the side frame portion 4c. Furthermore, the cover upper portion 4h is located in the side cross sectional view of the seat cushion 1 shown in FIG. 17A, along the virtual circle C which is a large diameter circle concentric with the cross section center of the connecting shaft 4f. It extends to the side. The rear edge 4 ha facing the rear notch 4 j does not protrude from the imaginary circle C.
  • the operator first pulls the surface terminal 1ba from the front to the rear above the cover upper portion 4h to move downward along the rear edge of the cover upper portion 4h. This is done by pulling the trim cord 9a on the hooking piece 4k after pulling and then pulling back from the rear to the front.
  • the cover upper portion 4h is formed on the virtual circle C, whereby the cushion pad 1a is The force applied to the rear end portion of the cover upper portion 4h via the upper surface can be suppressed smaller than that of the cover upper portion 40h shown in FIG. For this reason, it is possible to effectively maintain the tension of the surface material 1b after use over time.
  • the cover 4g is integrally formed with the side frame portion 4c on the rear side of the seat where the cover upper portion 4h is located, so that the cover material 1b is folded back to make the cover material 1b larger.
  • the rigidity of the rear side of the cover 4g to which a load is applied can be enhanced. Further, by forming the cover 4g in this manner, the skin material 1b and the connecting shaft 4f are separated at the position where the skin material 1b is folded back, and the connection shaft 4f is made smooth by preventing contact between the two. It will work.
  • FIG. 20 is a top perspective view showing the harness mounting plate 4m shown in the XX part of FIG. 18 in an enlarged manner.
  • the harness mounting plate 4m is integrally formed substantially vertically on the front surface of the cover 4g and the inner side surface of the side frame 4c at the connecting portion between the both sides of the cover 4g and the side frame portion 4c, and the direction parallel to the seating surface It is formed of
  • the harness mounting plate 4m is integrally formed on the front surface of the cover 4g and the inner side surface of the side frame portion 4c, and thereby functions as a reinforcing portion that enhances the rigidity of the cover 4g. That is, although the cover 4g has the front side notch 4i and the rear side notch 4j, the rigidity is lower than that of the case without the notch, but the cover 4g is integrally formed with the side frame portion 4c by the harness mounting plate 4m. Thus, predetermined rigidity can be secured.
  • the harness mounting plate 4m is formed substantially perpendicularly to both the front surface of the cover 4g and the inner side surface of the side frame portion 4c, the direction of the surface including the cover 4g and the side frame portion 4c (the surface of the seating surface Stiffness against load in the Therefore, the harness mounting plate 4m is particularly suitable for complementing the rigidity weakened by the front side notch 4i and the rear side notch 4j formed on the front and back of the cover 4g.
  • the harness mounting plate 4m is disposed in the vicinity of the side fixing portion 7a without extending to a position overlapping with the frame shaped support portion 7c of the rear plate spring 7 in the seat width direction.
  • the harness mounting plate 4m and the frame-like support 7c do not interfere with each other. It is possible to suppress an increase in size in the front-rear direction of F1.
  • the vehicle seat S provided with the seat cushion 1 and the seat cushion 1 according to the above embodiment, it is possible to reduce the weight of the cushion frame F1 and the vehicle seat S, and hooking the skin terminal to the cushion frame F1. It becomes easy to stop and increase productivity.
  • the seat cushion 1 and the vehicle seat S according to the above-described embodiments are merely examples for facilitating the understanding of the present invention, and the present invention is not limited thereto.
  • the present invention can be modified and improved without departing from the gist thereof, and the present invention naturally includes the equivalents thereof.
  • the trim cord 9a sewn to the skin terminal 1ba is described as being held by the cover 4g through the front notch 4i, but in addition to the trim cord 9a You may make it hang on.
  • the connecting shaft 4f is described as being supported by the side frame portion 4c so as to be rotatable at both ends, it is fixedly supported when it is not connected to the height link. May be In this case, the connecting shaft 4f may be formed with a notch for retaining the skin material. Furthermore, although it has been described that the frame connecting portion 4e is constituted by the separate connecting shaft 4f and the cover 4g, the connecting shaft 4f and the cover 4g may be integrally formed. Good.
  • the trim cord 9a sewn to the outer-skins terminal 1ba was demonstrated as what is latched by the latching piece 4k through the front side notch 4i of the cover 4g, it is not limited to this structure.
  • a protruding portion may be formed so as to project beyond the other portion, and the skin terminal or the trim cord may be latched on this protruding portion.
  • the cushion frame F1 is described as being made of a resin material, it may be made of a metal material or a combination of a resin and a metal.
  • the cushion frame F1 is described as being constituted by the side frame portion 4c integrally formed, the front frame portion 4d, and the frame connecting portion 4e, only the side frame portion 4c and the frame connecting portion 4e are described. May be integrally formed.
  • Cushion frame A cushion pad provided on the upper side of the cushion frame;
  • a seat cushion used for a vehicle seat comprising: a skin material covering an outer surface of the cushion pad;
  • the cushion frame has left and right side frame portions disposed on both sides of the seat, and a frame connecting portion disposed on the seat rear side of the seat cushion and connecting the left and right side frame portions.
  • the frame connecting portion includes a connecting shaft rotatably supported by the side frame portion, and a cover integrally formed on the left and right side frame portions and covering at least a part of the connecting shaft.
  • the cover is integrally formed with the side frame portion and has a hooked portion on the front side,
  • a seat cushion characterized in that a mounting portion of a skin terminal located on a seat rear side of the skin material is provided on a peripheral edge of the cover and is latched on the hooked portion.
  • the cover has a notch and The seat cushion according to claim 1, wherein the attachment portion of the skin terminal is hooked to the hooked portion through the notch.
  • the notch is a front notch on the seat front side of the cover,
  • the cover has a rear side notch on the rear side of the seat,
  • the edge on the seat rear side of the cover and facing the rear notch is concentric with the center of the cross section of the connection shaft including the portion other than the edge on the cover, and the diameter is larger than that of the connection shaft
  • the seat cushion according to any one of appendices 2, 4 to 6, characterized in that it is formed on an imaginary circle that is the inside of the imaginary circle or inside the imaginary circle.
  • the second aspect of the present invention is characterized in that the cover is integrally formed with the side frame portion on the sheet rear side which is the opposite side across the notch with respect to the side of the hooked portion.
  • Seat cushion according to any of the.
  • the cushion frame further comprises a cushion spring, The seat cushion according to any one of appendices 1 to 8, wherein the hooking portion is formed below the cushion spring.
  • the cover member is formed on the cover of the frame connection portion connected to the side frame portion, and the skin terminal is held on the cover member. Since the cover to which the cover is hooked is connected to the side frame portion, the cover is provided with high rigidity, and the hooking of the skin material can be stabilized to enhance the productivity.
  • the cushion frame can be reduced in weight by reducing the volume of the cover as the notch is formed in the cover. Furthermore, since the hooking portion protrudes downward further than the connecting shaft, the skin material comes into contact with the hooking portion, whereby the skin material is separated from the connecting shaft, and the skin member and the connecting shaft Can be avoided, and smooth rotation of the connecting shaft can be realized.
  • the upper end of the cover facing the notch of the hooked portion is closer to the connecting shaft than the lower end, and the distance between the upper end of the cover and the connecting shaft is narrowed, so that the cover is latched through the notch.
  • the operating range of the skin terminal (trimmed cord) can be limited to reduce the probability of releasing the latch, and the stability of the latch can be enhanced.
  • the notch extends in the sheet width direction in the cover, the skin terminal can be easily passed through the notch, and the workability of the latching becomes good.
  • the skin terminal hooked to the frame connecting portion through the central portion of the notch has the width of the seat cushion. It becomes difficult to shift in the direction, and the latch of the skin terminal is stabilized.
  • the edge on the rear side of the sheet in the rear notch is formed on the imaginary circle or inside the imaginary circle, so the edge does not protrude from the other cover portion, and the skin material is In a state where the cover is folded back to the peripheral edge on the rear side and latched on the front side of the cover, the force applied from the skin material to the edge of the cover on the rear side can be reduced. For this reason, the skin material can be folded back to the front side from the cover to be stably latched.
  • the cover is integrally formed with the side frame portion on the sheet rear side which is the opposite side across the notch with respect to the hooked portion side, so that the skin material is folded back from the skin material
  • the rigidity on the rear side of the cover to which a large load is applied can be enhanced, and the skin can be separated from the connection shaft on the sheet rear side of the cover where the skin material is folded back, and the connection shaft can be operated smoothly.
  • the cushion spring does not disturb when passing the skin terminal (trim cord) through the notch facing the upper surface of the hooked portion Therefore, it is possible to enhance the efficiency of the operation of retaining the skin material.
  • the cushion frame includes a reinforcing portion (a harness mounting plate or the like) integrally formed between the frame connection portion and the side frame portion, thereby forming a notch in the frame connection portion. It can compensate for the decrease in rigidity of the frame.
  • a reinforcing portion a harness mounting plate or the like
  • the vehicle seat includes the seat cushion
  • the above-described effects exerted by the seat cushion can be enjoyed by the vehicle seat.
  • the vehicle seat used for the automobile has been described as a specific example, the present invention is not limited to this, other than vehicle seats such as trains and buses, It can also be used as a seat for vehicles such as airplanes and ships.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

La présente invention concerne une armature de dossier de siège dans laquelle une pièce d'armature avant et une pièce d'armature arrière peuvent être fixées l'une à l'autre de manière uniforme et qui peut augmenter l'efficacité du travail d'assemblage de la pièce d'armature avant et de la pièce d'armature arrière. Une armature (F2) de dossier est pourvue d'une pièce d'armature arrière (ra) sur le côté arrière d'un siège et d'une pièce d'armature avant (fa) qui est reliée au côté avant de la pièce d'armature arrière (ra). La pièce d'armature arrière (ra) et la pièce d'armature avant (fa) comportent des armatures (rs) côté arrière droit et gauche et des armatures (fs) côté avant droit et gauche, qui sont respectivement disposées sur les côtés latéraux de siège, dont les extrémités supérieures sont reliées entre elles, et qui s'étendent dans la direction avant/arrière du siège. L'une des armatures (fs) côté avant droit et gauche de la pièce d'armature avant (fa) est flexible par rapport à la direction latérale de siège. À la fois les armatures (rs) côté arrière droit et gauche et les armatures (fs) côté avant droit et gauche, qui sont respectivement pourvues de la pièce d'armature arrière (ra) et de la pièce d'armature avant (fa), sont superposées par rapport à la direction latérale de siège et assemblées.
PCT/JP2014/070361 2013-08-01 2014-08-01 Armature de dossier de siège, siège pour véhicule, et procédé de fabrication d'armature de dossier de siège WO2015016351A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2013-160189 2013-08-01
JP2013160189A JP6207285B2 (ja) 2013-08-01 2013-08-01 車両用シート
JP2013-161820 2013-08-02
JP2013161820A JP6207286B2 (ja) 2013-08-02 2013-08-02 シートクッション及び車両用シート
JP2013-175886 2013-08-27
JP2013175886A JP2015044459A (ja) 2013-08-27 2013-08-27 シートバックフレーム、車両用シート及びシートバックフレームの製造方法

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WO2015016351A1 true WO2015016351A1 (fr) 2015-02-05

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PCT/JP2014/070361 WO2015016351A1 (fr) 2013-08-01 2014-08-01 Armature de dossier de siège, siège pour véhicule, et procédé de fabrication d'armature de dossier de siège

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WO (1) WO2015016351A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11001178B2 (en) 2017-03-27 2021-05-11 Ts Tech Co., Ltd. Conveyance seat
WO2022259975A1 (fr) * 2021-06-07 2022-12-15 テイ・エス テック株式会社 Siège de véhicule
US11554700B2 (en) * 2020-04-28 2023-01-17 Faurecia Sièges d'Automobile Vehicle seat
US12030413B2 (en) 2017-03-27 2024-07-09 Ts Tech Co., Ltd. Conveyance seat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136947U (fr) * 1985-02-13 1986-08-26
JP2004538095A (ja) * 2001-08-15 2004-12-24 ダウ グローバル テクノロジーズ インコーポレイティド 改良型座席システム
JP2006247066A (ja) * 2005-03-09 2006-09-21 Mazda Motor Corp 車両のシートバックフレーム構造
WO2012150633A1 (fr) * 2011-05-02 2012-11-08 トヨタ自動車株式会社 Siège de véhicule et dossier de siège

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136947U (fr) * 1985-02-13 1986-08-26
JP2004538095A (ja) * 2001-08-15 2004-12-24 ダウ グローバル テクノロジーズ インコーポレイティド 改良型座席システム
JP2006247066A (ja) * 2005-03-09 2006-09-21 Mazda Motor Corp 車両のシートバックフレーム構造
WO2012150633A1 (fr) * 2011-05-02 2012-11-08 トヨタ自動車株式会社 Siège de véhicule et dossier de siège

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11001178B2 (en) 2017-03-27 2021-05-11 Ts Tech Co., Ltd. Conveyance seat
US11590866B2 (en) 2017-03-27 2023-02-28 Ts Tech Co., Ltd. Conveyance seat
US12030413B2 (en) 2017-03-27 2024-07-09 Ts Tech Co., Ltd. Conveyance seat
US11554700B2 (en) * 2020-04-28 2023-01-17 Faurecia Sièges d'Automobile Vehicle seat
WO2022259975A1 (fr) * 2021-06-07 2022-12-15 テイ・エス テック株式会社 Siège de véhicule

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