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WO2018146853A1 - Siège de véhicule - Google Patents

Siège de véhicule Download PDF

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Publication number
WO2018146853A1
WO2018146853A1 PCT/JP2017/033956 JP2017033956W WO2018146853A1 WO 2018146853 A1 WO2018146853 A1 WO 2018146853A1 JP 2017033956 W JP2017033956 W JP 2017033956W WO 2018146853 A1 WO2018146853 A1 WO 2018146853A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
width direction
attached
reclining
attachment
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/033956
Other languages
English (en)
Japanese (ja)
Inventor
直人 永澤
和也 磯貝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TS Tech Co Ltd
Original Assignee
TS Tech Co Ltd
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
Application filed by TS Tech Co Ltd filed Critical TS Tech Co Ltd
Publication of WO2018146853A1 publication Critical patent/WO2018146853A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable

Definitions

  • the present invention relates to a vehicle seat.
  • This application claims priority based on Japanese Patent Application No. 2017-023159 filed in Japan on February 10, 2017, the contents of which are incorporated herein by reference.
  • the vehicle seat described in Patent Document 1 includes an operation member (reclining operation member) that operates the reclining mechanism on the side surface of the seat cushion.
  • the reclining mechanism section includes a locked state in which the seat back is fixed to the seat cushion by rotation of a connecting shaft (shaft member) to which the operation member is connected, and a state in which the seat back can be tilted with respect to the seat cushion. It is possible to transition between
  • the reclining operation member and the shaft member are connected by externally fitting the reclining operation member to one end portion of the shaft member. For this reason, the attachment rigidity of the reclining operation member may be insufficient.
  • the present invention provides a vehicle seat capable of improving the mounting rigidity of the reclining operation member.
  • a vehicle seat includes a seat cushion frame, a seat back frame attached to be tiltable with respect to the seat cushion frame, and the seat back with respect to the seat cushion frame in a locked state.
  • a reclining mechanism that regulates tilting of the frame, a reclining operation member that operates the reclining mechanism, and a biasing member that biases the seat back frame to tilt with respect to the seat cushion frame,
  • the reclining mechanism portion extends in the seat width direction and is provided on a shaft member that can be released from the locked state by rotating, and on a radially outer side of the shaft member than the shaft member.
  • the lining operation member includes a first attachment portion connected to the first attachment portion, a second attachment portion connected to the second attachment portion, and the attachment portion as viewed from the seat width direction.
  • a connecting portion that is provided at a position that does not overlap the force member and connects the first mounting portion and the second mounting portion;
  • the reclining mechanism portion includes a first attached portion and a second attached portion connected to the shaft member, and the reclining operation member is connected to the first attached portion. Since it has a 1st attaching part and a 2nd attaching part connected with respect to a 2nd to-be-attached part, a reclining operation member can be connected with the shaft member of a reclining mechanism part at two places. And since the 1st attachment part and the 2nd attachment part are connected by the connection part, the relative displacement of a 1st attachment part and a 2nd attachment part can be suppressed.
  • strength of the connection structure of a 2nd attachment part and a 2nd to-be-attached part can be improved. Therefore, it is possible to improve the mounting rigidity of the reclining operation member.
  • the urging member is a spiral spring
  • the seat back frame is formed by an outer end portion disposed at an upper portion.
  • the connecting portion may be disposed below the biasing member.
  • the outer end portion of the urging member that is a spiral ring is disposed on the upper portion of the urging member, whereas the connecting portion is disposed below the urging member. It can prevent that a connection part interferes with the outer end part of a biasing member. For this reason, interference with a connection part and a biasing member can be prevented reliably, and it can prevent that a connection part is damaged. Therefore, the mounting rigidity of the reclining operation member can be further improved.
  • At least one of the first attachment portion and the second attachment portion is the seat width. It may be arranged at a position corresponding to the urging member in the direction.
  • the vehicle seat can be reduced in size.
  • the first attached portion and the second attached portion may extend from the shaft member toward the radially outer side of the shaft member, and the tip may be formed wider than the base end.
  • the one attached portion has a distal end formed wider than the base end, the one attached portion has When the shaft member is rotated by applying a load, the rigidity of the base end portion to which a greater force is applied can be improved. Therefore, the strength of the reclining mechanism can be improved.
  • the urging member is engaged with the urging member fixed to the seat cushion frame.
  • a locked member provided so as to be able to be stopped and disposed between the shaft member and the reclining operation member.
  • a load acting from the reclining operation member toward the shaft member can be received by a locked member provided so that the urging member can be locked. Therefore, the shaft member can be protected while suppressing an increase in the number of parts.
  • the seat cushion frame is on one side in the seat width direction.
  • the support portion that supports the cushion member is fixed at a position different from the reclining operation member in the upper portion of the main body portion in the seat width direction. It is possible to prevent the reclining operation member that rotates integrally with the moving shaft member from interfering with the fixed portion between the main body portion and the support portion. Therefore, the reclining operation member can be reliably operated within a desired rotation range.
  • the height of the seat cushion frame relative to the vehicle floor by rotating.
  • a link member capable of adjusting the height
  • a height adjusting mechanism having a rotation restricting member capable of restricting the rotation of the link member, and a height adjusting member for operating the rotation restricting member.
  • the member includes a third attached portion connected to the height adjusting member, and the third attached portion is at least one of the first attached portion and the second attached portion in the seat width direction. You may arrange
  • the size in the seat width direction of the region occupied by the reclining mechanism portion including the first attached portion and the second attached portion and the height adjusting mechanism including the third attached portion is reduced. Can do. Therefore, the vehicle seat can be reduced in size.
  • the reclining mechanism portion includes the first attached portion and the second attached portion connected to the shaft member, and the reclining operation member is connected to the first attached portion. Since it has a 1st attaching part and a 2nd attaching part connected with respect to a 2nd to-be-attached part, a reclining operation member can be connected with the shaft member of a reclining mechanism part at two places. And since the 1st attachment part and the 2nd attachment part are connected by the connection part, the relative displacement of a 1st attachment part and a 2nd attachment part can be suppressed.
  • strength of the connection structure of a 2nd attachment part and a 2nd to-be-attached part can be improved. Therefore, it is possible to improve the mounting rigidity of the reclining operation member.
  • the vehicle seat 1 will be described by taking a vehicle seat in the driver's seat as an example.
  • the front-rear, up-down, left-right directions are the same as the front-back, up-down, left-right directions in the vehicle unless otherwise specified.
  • the arrow UP indicates the upper direction
  • the arrow FR indicates the front
  • the arrow LH indicates the left.
  • the vehicle seat 1 is arranged in a state where the seat width direction coincides with the vehicle width direction.
  • the inner side in the seat width direction refers to a direction toward the intermediate portion in the seat width direction of the vehicle seat 1
  • the outer side in the seat width direction refers to a direction away from the intermediate portion in the seat width direction in the vehicle seat 1.
  • FIG. 1 is a perspective view of a vehicle seat as viewed obliquely from the front right.
  • a vehicle seat 1 includes a seat body 2 that supports a seated person, and four body brackets 3 that are installed on a floor in a passenger compartment and support the seat body 2 in front, rear, left, and right (in FIG. 1). (Only three are shown), and a pair of left and right seat rails 4 that are attached between the seat body 2 and the body bracket 3 and support the seat body 2 so as to be slidable in the front-rear direction with respect to the floor in the passenger compartment. ing.
  • the seat body 2 is connected to a seat cushion 10 that supports a seated person's buttocks, and a rear end portion of the seat cushion 10 so as to be tiltable about a tilting axis P along the seat width direction, A seat back 20 that supports the back portion, and a headrest 30 that is supported by the upper portion of the seat back 20 and supports the head and neck of the seated person.
  • the seat cushion 10 is slidably supported by the pair of seat rails 4.
  • the seat cushion 10 includes a seat cushion frame 11 (see FIG. 2) that forms a skeleton, a cushion pad (cushion member) (not shown) that is formed on the upper portion of the seat cushion frame 11 and is formed of, for example, urethane foam, and a synthetic fiber, for example. And a seat cover 13 that is formed of leather or the like and covers the seat cushion frame 11 and the cushion pad.
  • FIG. 2 is a perspective view of the skeleton of the vehicle seat as viewed from the right front side.
  • the seat cushion frame 11 includes a pair of left and right side plates (left side plate 14 and right side plate 15 (main body)) extending in the front-rear direction, and front sides of the side plates 14 and 15.
  • a seat pan 16 that connects the parts and a rear pipe 17 that connects the rear parts of the side plates 14 and 15 are provided.
  • the seat cushion frame 11 is formed in a rectangular frame shape by a left side plate 14, a right side plate 15, a seat pan 16 and a rear pipe 17.
  • the right side plate 15 has a shape in which a rear end portion on which the tilt axis P is located protrudes upward.
  • FIG. 3 is an enlarged side view of the skeleton part of the vehicle seat as viewed from the right side.
  • the upper end edge 15 a at the rear end portion of the right side plate 15 is formed in an arc shape centered on the tilt axis P as viewed from the sheet width direction.
  • step portions 15 b and 15 c are formed extending from both ends of the upper end edge 15 a toward the direction away from the tilting axis P when viewed from the sheet width direction.
  • FIG. 4 is an enlarged perspective view of the skeleton of the vehicle seat as viewed from the right front side.
  • a locked member 18 to which a biasing member 5 described later is locked is provided at the rear end portion of the right side plate 15.
  • the locked member 18 is provided so as to protrude outward in the seat width direction.
  • the locked member 18 is erected on the right side plate 15 and has an arcuate arc plate portion 18a centering on the tilting axis P when viewed from the sheet width direction, and a tip portion of the arc plate portion 18a (on the outer side in the sheet width direction).
  • a bent portion 18b bent so as to hang down from the end portion.
  • the circular arc plate portion 18a is disposed above the tilting axis P and is fixed to the right side plate 15 by welding or the like.
  • the bent portion 18b hangs down below the tilt axis P.
  • a through hole 18c coaxial with the tilt axis P is formed in the bent portion 18b.
  • the locked member 18 is disposed between a connecting shaft portion 41 of a reclining mechanism portion 40 described later and a reclining operation member 70 (see FIG. 1).
  • the locked member 18 may be formed separately from the right side plate 15 and fixed by welding or the like, or may be formed integrally.
  • the seat cushion frame 11 includes a pad support portion 12 (support portion) that supports the cushion pad.
  • the pad support 12 is formed of a plurality of wires and is welded to the right side plate 15 or the like (see FIG. 2).
  • the right pad support 12a disposed on the rightmost side of the pad support 12 is welded at a position different from the reclining operation member 70 (see FIG. 1), which will be described later, in the upper portion of the right plate 15 in the seat width direction. It is fixed.
  • the seat back 20 is formed of a seat back frame 21 (see FIG. 2) constituting a skeleton and, for example, urethane foam or the like, and a seat pad (not shown) attached to the front portion of the seat back frame 21.
  • a seat cover 22 formed of, for example, synthetic fiber or leather and covering the seat back frame 21 and the seat pad.
  • the seat back frame 21 includes a pipe member 23 extending in a rectangular frame shape along the vertical direction and the seat width direction, and a pair of left and right sides fixed to the lower portions of the left and right sides of the pipe member 23.
  • Side plate material left side plate material 24 and right side plate material 25.
  • the lower end portion of the left side plate member 24 extends below the pipe member 23 and is disposed on the inner side (right side) in the seat width direction than the rear end portion of the left side plate 14 of the seat cushion 10.
  • the lower end portion of the left side plate member 24 is supported by the rear end portion of the left side plate 14 so as to be rotatable around the tilt axis P.
  • the lower end portion of the right side plate member 25 extends below the pipe member 23 and is disposed on the inner side (left side) in the seat width direction than the rear end portion of the right side plate 15 of the seat cushion 10.
  • the lower end portion of the right side plate member 25 is supported by the rear end portion of the right side plate 15 so as to be rotatable around the tilt axis P.
  • the seat back frame 21 is attached to the seat cushion frame 11 so as to be tiltable.
  • a locked piece 26 to which the biasing member 5 is locked is provided at the lower end portion of the right side plate member 25.
  • the locked piece 26 is provided so as to protrude outward in the sheet width direction.
  • the locked piece 26 is formed in an arc shape centered on the tilt axis P as viewed from the sheet width direction.
  • the locked piece 26 is provided above the tilting axis P and is disposed along the upper end edge 15 a of the rear end portion of the right side plate 15.
  • the latched piece 26 moves along the upper end edge 15a of the rear end portion of the right side plate 15 when the seat back frame 21 is tilted. At this time, the locked piece 26 is in contact with the step portions 15b and 15c (see FIG.
  • the locked piece 26 may be formed separately from the right side plate member 25 and fixed by welding or the like, or may be formed integrally.
  • the headrest 30 includes a headrest pad (not shown) and a headrest cover 32 that covers the headrest pad.
  • the headrest pad is made of, for example, urethane foam.
  • the headrest cover 32 is made of, for example, synthetic fiber or leather.
  • a headrest pillar (not shown) that supports the headrest 30 is embedded in the headrest 30. The headrest pillar extends straight downward from the left and right sides of the lower surface of the headrest 30 and protrudes, and is inserted into the upper portion of the seat back 20. Thereby, the headrest 30 is supported by the seat back 20.
  • the vehicle seat 1 includes a biasing member 5, a reclining mechanism unit 40, a height adjusting mechanism 50, a cushion side cover 60, a reclining operation member 70, and a height adjusting member 100. And further comprising.
  • the urging member 5 is a spiral spring.
  • the urging member 5 urges the seat back frame 21 in the forward tilt direction with respect to the seat cushion frame 11.
  • the biasing member 5 is disposed at the same position in the sheet width direction as the arcuate plate portion 18a and the locked piece 26 of the locked member 18 so as to surround the periphery of the tilting axis P when viewed from the sheet width direction. Yes.
  • the outer end portion 5a (radially outer end portion) of the urging member 5 is disposed on the upper portion (that is, above the tilting axis P) of the urging member 5.
  • the outer end portion 5 a of the urging member 5 is bent outward in the radial direction and is locked to the rear end edge of the locked piece 26.
  • the inner end portion 5 b (end portion on the radially inner side) of the urging member 5 is bent toward the radially inner side and is locked to the front end edge of the arc plate portion 18 a of the locked member 18.
  • the reclining mechanism 40 is disposed in the vicinity of the tilt axis P at the rear end of the right side plate 15 and is supported by the right side plate 15.
  • the reclining mechanism 40 restricts the tilting of the seat back frame 21 relative to the seat cushion frame 11 in the locked state.
  • the reclining mechanism unit 40 includes a lock mechanism unit (not shown) that fixes a relative rotational position of the seat cushion frame 11 and the seat back frame 21, and a release mechanism unit (not shown) that releases the lock of the lock mechanism unit. I have.
  • the lock mechanism portion of the reclining mechanism portion 40 has a known structure that regulates the relative rotation of the seat cushion frame 11 and the seat back frame 21 by engagement of the pawl and the groove or the like in the locked state.
  • the release mechanism portion of the reclining mechanism portion 40 includes a connecting shaft portion 41 (shaft member) that can be released from the locked state by rotating around the tilt axis P.
  • the connecting shaft portion 41 is provided coaxially with the tilting shaft P.
  • the first attached portion 42 and the second attached portion 43 are fixed (connected) to the outer end of the connecting shaft portion 41 in the sheet width direction.
  • Each of the attached portions 42 and 43 is provided on the radially outer side of the connecting shaft portion 41 with respect to the connecting shaft portion 41.
  • Each of the attached portions 42 and 43 is integrally formed of a plate-like member, and rotates around the tilt axis P as the connecting shaft portion 41 rotates.
  • the first attached portion 42 extends from the outer end of the connecting shaft portion 41 in the sheet width direction to the inner side of the urging member 5 through the inner side of the urging member 5 to the outer side of the urging member 5 when viewed from the sheet width direction. , Extending forward and slightly downward.
  • the tip end portion 42 a of the first attached portion 42 is bent toward the outer side in the sheet width direction and extends further to the outer side in the sheet width direction than the urging member 5.
  • the distal end portion 42a is formed in a rectangular shape, and a locking claw 42b is provided at the center portion. As shown in FIG. 3, the first attached portion 42 is formed so as to increase in width as viewed from the sheet width direction toward the base end.
  • a locking piece 44 extends downward at an intermediate portion in the extending direction of the first attached portion 42.
  • One end of the coil spring 6 is locked to the locking piece 44.
  • the other end portion of the coil spring 6 is locked to the rear and lower portion of the locking piece 44 in the right side plate 15.
  • the coil spring 6 urges the first attached portion 42 in the clockwise direction when viewed from the outside in the seat width direction.
  • the second attached portion 43 passes from the end of the connecting shaft portion 41 on the outer side in the sheet width direction, passes through the inner side of the biasing member 5 in the seat width direction, and extends from the seat width direction. As viewed, it extends rearward beyond the biasing member 5.
  • the distal end portion 43 a of the second attached portion 43 is bent toward the outer side in the sheet width direction and extends further to the outer side in the sheet width direction than the urging member 5.
  • the distal end portion 43a is formed in a rectangular shape.
  • a locking claw 43b is provided at the central portion of the distal end portion 43a.
  • the second attached portion 43 is formed so as to increase in width from the front end to the base end when viewed from the sheet width direction.
  • the height adjustment mechanism 50 is disposed in front of the reclining mechanism portion 40 in the right side plate 15.
  • the height adjusting mechanism 50 adjusts the height of the seat cushion frame 11 with respect to the vehicle floor.
  • the height adjustment mechanism 50 is connected to the right side plate 15 and the right seat rail 4 (see FIG. 2), and rotates to adjust the height of the seat cushion frame 11 with respect to the vehicle floor (link not shown).
  • Member and a driven link, and a rotation restricting member 51 that rotates the drive link around the connecting portion with the seat rail 4 and can restrict the rotation of the drive link.
  • the rotation restricting member 51 includes, for example, an output shaft (not shown), an input shaft 52 (third attached portion), a brake device 53, and a clutch unit 54.
  • the output shaft is connected to the drive link.
  • the input shaft 52 is provided so as to be bi-directionally rotatable about the rotation axis Q from the neutral position, and is connected to the output shaft via the clutch unit 54.
  • the brake device 53 locks the output shaft when the input shaft 52 is stopped, and rotates the output shaft when the input shaft 52 is rotating.
  • the clutch unit 54 rotates the output shaft in any direction by reciprocatingly rotating the input shaft 52 in any direction from the neutral position.
  • the height adjustment mechanism 50 raises and lowers the seat cushion frame 11 by increasing and decreasing the inclination angles of the drive link and the driven link by repeatedly reciprocatingly rotating the input shaft 52 in either direction from the neutral position. Or lower.
  • the end of the input shaft 52 on the outer side in the sheet width direction is a flange portion 55 that projects outward in the radial direction of the input shaft 52.
  • the flange portion 55 has a plurality (four in this embodiment) of extending pieces 55a extending toward the outside in the radial direction of the flange portion 55, and a plurality of tapping holes 55b into which tapping screws described later are screwed. , Is formed.
  • the flange portion 55 is disposed at a position corresponding to the first attached portion 42 and the second attached portion 43 of the reclining mechanism portion 40 in the seat width direction (that is, the same position in the seat width direction).
  • the cushion side cover 60 is disposed so as to cover the right side plate 15 (see FIG. 2) from the outside in the seat width direction.
  • the cushion side cover 60 extends in the front-rear direction when viewed from the seat width direction.
  • the cushion side cover 60 is formed in a shape in which the rear end portion protrudes upward corresponding to the shape of the rear end portion of the right side plate 15.
  • the cushion side cover 60 is provided continuously at the front end portion and the lower end portion as viewed from the seat width direction and bulges toward the outside in the seat width direction, and the seat provided at a portion other than the bulge portion 61.
  • a recess 63 that is recessed inward in the width direction.
  • the depression 63 is provided corresponding to the rotation range of the reclining operation member 70 and the height adjusting member 100, and is formed in a planar shape orthogonal to the sheet width direction.
  • FIG. 5 is an enlarged side view of the vehicle seat as viewed from the right side.
  • FIG. 6 is a perspective view of the cushion side cover as viewed from the inside in the seat width direction.
  • FIG. 5 illustrates a state where the reclining operation member 70 and the height adjusting member 100 are removed. As shown in FIG.
  • the recess 63 has a first hole 63 a formed at a position corresponding to the tip 42 a of the first attached portion 42 of the reclining mechanism 40 as viewed from the seat width direction, and the seat Corresponding to the second hole 63b formed at a position corresponding to the tip 43a of the second attached portion 43 as viewed from the width direction, and the flange portion 55 of the input shaft 52 of the height adjusting mechanism 50 as viewed from the seat width direction. And a third hole 63c formed at a position to be formed.
  • the first hole 63a and the second hole 63b are formed corresponding to the rotation ranges of the tip portions 42a and 43a of the attached portions 42 and 43, respectively.
  • the third hole 63c is formed in a circular hole shape through which the flange portion 55 can be inserted.
  • a screw insertion hole 63d (see FIG. 6) coaxial with the tilt axis P is formed in the recess 63.
  • the cushion side cover 60 is attached to the right side plate 15 by a screw 64 inserted through a screw insertion hole 63d and a through hole 18c (see FIG. 4) of the locked member 18 protruding from the right side plate 15. It is fixed. Further, as shown in FIG. 6, the cushion side cover 60 locks the right claw plate 15 on the right side plate 15 by locking a locking claw 63 e provided on the inner side surface with the upper edge of the right side plate 15 (see FIG. 3). It is positioned and fixed with respect to it.
  • the bulging portion 61 is formed with a protrusion arrangement hole 61a in which a protrusion 106 (see FIG. 9) described later of the height adjusting member 100 is disposed.
  • the protrusion arrangement hole 61a is formed in a predetermined angular range around the rotation axis Q.
  • the protrusion arrangement hole 61 a is continuous with the third hole 63 c of the recess 63.
  • the reclining operation member 70 operates the connecting shaft portion 41 (see FIG. 4) of the reclining mechanism portion 40.
  • the reclining operation member 70 is disposed along the outer surface of the recess 63 of the cushion side cover 60 that faces outward in the seat width direction.
  • the reclining operation member 70 includes a bottomed cylindrical base 71 arranged coaxially with the tilting axis P, a lever portion 72 extending forward from the base portion 71, and a downward direction from the base end portion of the lever portion 72. And a gap preventing part 73 extending in this manner.
  • FIG. 7 is a perspective view of the reclining operation member as viewed from the outside in the seat width direction.
  • FIG. 8 is a perspective view of the reclining operation member as seen from the inside in the seat width direction.
  • the base 71 has a disk-like bottom wall 71a and a peripheral wall 71b extending from the outer periphery of the bottom wall 71a toward the inner side in the sheet width direction.
  • the peripheral wall portion 71 b is formed in a cylindrical shape in which a front portion corresponding to a connection portion between the base portion 71 and the lever portion 72 is notched.
  • the bottom wall portion 71a and the peripheral wall portion 71b are connected smoothly.
  • the lever portion 72 extends forward and downward from the front portion of the base portion 71.
  • the lever portion 72 includes a bottom wall 72a extending from the bottom wall portion 71a of the base portion 71, and a side wall 72b extending from the outer edge of the bottom wall 72a toward the inside in the sheet width direction.
  • the bottom wall 72a tapers from the base end toward the tip when viewed from the sheet width direction.
  • the side wall 72 b is smoothly connected to the bottom wall 72 a and is also continuously connected to both ends of the peripheral wall portion 71 b of the base 71 that are notched.
  • the space inside the base portion 71 and the space inside the lever portion 72 are continuous spaces.
  • the gap prevention part 73 is provided below the connecting part between the base 71 and the lever part 72.
  • the gap preventing portion 73 is formed in a plate shape extending along the outer surface of the recessed portion 63 (see FIG. 1) of the cushion side cover 60.
  • the gap preventing portion 73 extends downward from the edge on the inner side in the sheet width direction of the portion of the side wall 72b at the base end portion of the lever portion 72 that is connected to the edge facing downward of the bottom wall 72a.
  • the gap preventing portion 73 is connected to the edge on the inner side in the sheet width direction of the peripheral wall portion 71b of the base portion 71 that is connected to the edge facing the front of the bottom wall portion 71a.
  • the base 71 includes a first attachment portion 76 connected to a first attached portion 42 (see FIG. 4) of the reclining mechanism portion 40, and a second attached portion 43 ( And a second mounting portion 77 connected to (see FIG. 4).
  • the first attachment portion 76 is provided at a position corresponding to the position of the distal end portion 42a (see FIG. 4) of the first attached portion 42 in the reclining mechanism portion 40.
  • the first attachment portion 76 is provided below the connection portion between the base portion 71 and the lever portion 72 in the front portion inside the base portion 71.
  • the first mounting portion 76 includes a pedestal portion 76a formed on the bottom wall portion 71a and a first locking portion 76b erected on the pedestal portion 76a.
  • the pedestal portion 76a is formed in a rectangular parallelepiped shape (or a quadrangular pyramid shape), and the front portion of the pedestal portion 76a is connected to the peripheral wall portion 71b.
  • locking part 76b is formed in the square cylinder shape standingly arranged toward the sheet
  • the tip end portion 42a of the first attached portion 42 can be inserted inside the first locking portion 76b.
  • the first locking portion 76 b is formed with a locking hole 76 c that can lock the locking claw 42 b formed at the tip end portion 42 a of the first attached portion 42.
  • the second mounting portion 77 is provided at a position corresponding to the position of the distal end portion 43a (see FIG. 4) of the second mounted portion 43 in the reclining mechanism portion 40.
  • the second attachment portion 77 is provided at the rear portion inside the base portion 71.
  • the second mounting portion 77 includes a plate-like second locking portion 77a erected on the bottom wall portion 71a, and a pair of connecting portions 77b that connect the second locking portion 77a and the peripheral wall portion 71b.
  • locking part 77a is formed in plate shape, and is arrange
  • connection portions 77b are each formed in a plate shape, and connect each edge of the second mounting portion 77 on both sides in the circumferential direction around the tilt axis P to the peripheral wall portion 71b.
  • the distal end portion 43a of the second attached portion 43 can be inserted into the space between the second locking portion 77a and the pair of connecting portions 77b.
  • the second locking portion 77 a is formed with a locking hole 77 c that can lock the locking claw 43 b formed at the distal end portion 43 a of the second attached portion 43.
  • a plurality of first ribs 74 are provided on the inner side of the lever portion 72 so as to stand on the bottom wall 72a and extend along the extending direction of the lever portion 72, and the first rib 74 and the side walls 72b on both upper and lower sides. Second ribs 75 are provided.
  • the first rib 74 is provided at a central portion in a direction orthogonal to the extending direction of the lever portion 72.
  • a third rib 78 and a fourth rib 79 are provided on the outer periphery of the bottom wall portion 71a and extend along the outer shape of the base portion 71, and the third rib 78 and the peripheral wall.
  • a plurality of fifth ribs 80 that connect the portion 71b and a plurality of sixth ribs 81 that connect the fourth rib 79 and the peripheral wall portion 71b are provided.
  • the third rib 78 is continuous with the first rib 74 and extends in the clockwise direction from the rear end portion of the first rib 74 when viewed from the inner side in the sheet width direction.
  • the third rib 78 extends straight from the rear end portion of the first rib 74 toward the rear at the upper portion of the bottom wall portion 71a, and then extends along the circumferential direction around the tilt axis P. 2 It is connected to the connection part 77 b on the upper side of the attachment part 77.
  • the fourth rib 79 connects the first mounting portion 76 and the second mounting portion 77 below the first mounting portion 76 and the second mounting portion 77.
  • the fourth rib 79 has a shape in which a plurality (four in this embodiment) of flat ribs are arranged side by side along the circumferential direction around the tilt axis P.
  • the rear end portion of the fourth rib 79 is connected to the lower connection portion 77 b of the second attachment portion 77.
  • the front end portion of the fourth rib 79 is connected to the pedestal portion 76 a of the first attachment portion 76.
  • the fourth rib 79 is disposed below the biasing member 5 (see FIG. 4) when viewed from the sheet width direction.
  • the plurality of fifth ribs 80 extend from the third rib 78 in a direction away from the tilting axis P, and are connected to the peripheral wall portion 71b.
  • the plurality of fifth ribs 80 are arranged at intervals in the circumferential direction around the tilt axis P.
  • the plurality of sixth ribs 81 extend from the fourth rib 79 in a direction away from the tilting axis P, and are connected to the peripheral wall portion 71b.
  • the plurality of sixth ribs 81 are connected to a portion of the fourth ribs 79 where the flat ribs forming the fourth ribs 79 are continuous. That is, in the present embodiment, since the fourth rib 79 is formed by four flat ribs, three sixth ribs 81 are provided.
  • the reclining operation member 70 configured as described above is disposed in a state where the mounting portions 76 and 77 are inserted through the first hole 63a and the second hole 63b of the cushion side cover 60. In this state, the reclining operation member 70 has the first attachment portion 76 locked to the distal end portion 42 a of the first attached portion 42 of the reclining mechanism portion 40 and the second attachment portion 77 of the reclining mechanism portion 40. 2 It is latched by the front-end
  • the first mounting portion 76 attached to the tip end portion 42a is also the biasing member 5 in the sheet width direction. (Ie, the same position in the sheet width direction). Since the distal end portion 43a of the second attached portion 43 is disposed at the same position in the sheet width direction as the urging member 5, the second attachment portion 77 attached to the distal end portion 43a is also the urging member 5 in the sheet width direction. (Ie, the same position in the sheet width direction).
  • the operator puts a finger on the lever portion 72 and pulls it upward to turn the connecting shaft portion 41 of the reclining mechanism portion 40 counterclockwise when viewed from the outside in the seat width direction to release the locked state. can do.
  • the connecting shaft portion 41 is urged clockwise by the coil spring 6 described above as viewed from the outside in the seat width direction. Thereby, resistance can be provided with respect to the raising operation of the lever part 72, and the operational feeling of the lever part 72 can be improved.
  • the height adjusting member 100 operates a rotation restricting member 51 (see FIG. 3) of the height adjusting mechanism 50.
  • the height adjusting member 100 is disposed along the outer surface of the recessed portion 63 of the cushion side cover 60 in front of the reclining operation member 70.
  • the height adjustment member 100 includes a disc-shaped rotation base 101 disposed coaxially with the rotation axis Q, and a lever 102 that extends along the front-rear direction and is connected to the rotation base 101 at the rear end. It is formed into a shape.
  • FIG. 9 is a perspective view of the height adjusting member viewed from the outside in the sheet width direction.
  • FIG. 10 is a perspective view of the height adjusting member viewed from the inside in the sheet width direction.
  • FIG. 11 is an enlarged perspective view of the vehicle seat as viewed obliquely from the front right.
  • the height adjustment member 100 includes a main body 103 connected to the input shaft 52 (see FIG. 4) of the height adjustment mechanism 50, and a cover 113 that covers a part of the main body 103. ing.
  • FIG. 9 is a perspective view of the height adjusting member viewed from the outside in the sheet width direction.
  • FIG. 10 is a perspective view of the height adjusting member viewed from the inside in the sheet width direction.
  • FIG. 11 is an enlarged perspective view of the vehicle seat as viewed obliquely from the front right.
  • the height adjustment member 100 includes a main body 103 connected to the input shaft 52 (see FIG. 4) of the height adjustment mechanism 50, and a cover
  • the main body 103 includes a disk part 104 corresponding to the rotation base part 101, a rod-like part 105 corresponding to the lever 102, and a protrusion part 106 protruding from the disk part 104.
  • the disk part 104, the rod-like part 105, and the projection part 106 are integrally formed.
  • the disk portion 104 is formed coaxially with the rotation axis Q.
  • the disk portion 104 is attached to the flange portion 55 (see FIG. 5) of the input shaft 52 of the height adjusting mechanism 50 from the outside in the seat width direction.
  • a plurality of groove portions 104a into which a plurality of extending pieces 55a (see FIG. 5) of the input shaft 52 are fitted are formed on the surface of the disk portion 104 that faces inward in the sheet width direction.
  • a plurality (two in this embodiment) of insertion holes 104b that penetrates along the sheet width direction are formed in the disk portion 104.
  • the insertion hole 104b is formed at a position corresponding to the tapping hole 55b (see FIG.
  • a tapping screw (not shown) that is screwed into the tapping hole 55b of the flange portion 55 is inserted into the insertion hole 104b from the outer side in the sheet width direction toward the inner side.
  • a plurality of (three in this embodiment) locking grooves 104c are formed on the outer peripheral surface of the disk portion 104 to lock locking claws 114a (described later) of the cover portion 113.
  • the rod-like portion 105 is connected to the lower half of the disc portion 104 from the outside in the sheet width direction.
  • the rod-shaped part 105 is connected to the disk part 104 and extends along the front-rear direction, a middle part 108 extending forward and upward from the tip of the base part 107, and a middle part from the tip of the middle part 108.
  • a tip portion 109 extending forward and upward at a smaller inclination angle than the portion 108 with respect to the front-rear direction; and a plate-like portion 110 extending downward from the tip portion 109.
  • the base end portion 107 is disposed so as to cover the lower half of the disc portion 104 when viewed from the outside in the sheet width direction.
  • a cover portion 113 is put on a portion of the base end portion 107 extending from the intermediate portion to the rear end portion.
  • a portion from the intermediate portion to the rear end portion of the base end portion 107 is formed to be slightly thinner than the tip end portion of the base end portion 107.
  • the distal end portion 109 tapers from the proximal end toward the distal end.
  • the plate-like portion 110 extends along the outer surface of the recessed portion 63 of the cushion side cover 60 and continues to the intermediate portion 108.
  • the portion of the rod-like portion 105 outside the disc portion 104 when viewed from the sheet width direction is formed in a concave shape that opens toward the inside in the sheet width direction.
  • a honeycomb-shaped honeycomb rib 111 in which concave portions formed in a circular shape are arranged in a staggered manner is provided inside a concave portion of the base end portion 107 and the intermediate portion 108.
  • a lattice-like lattice rib 112 is provided inside the distal end portion 109.
  • the protrusion 106 protrudes rearward from the lower end of the rear end of the disk portion 104. As shown in FIG. 11, the protrusion 106 is inserted into the protrusion arrangement hole 61 a of the cushion side cover 60. When the main body 103 rotates about the rotation axis Q, the protrusion 106 abuts on both ends in the circumferential direction around the rotation axis Q at the opening edge of the protrusion arrangement hole 61a, thereby rotating the main body 103. Specifies the range of movement.
  • positioning hole 61a is provided in the bulging part 61 of the cushion side cover 60, the load at the time of the contact with the protrusion part 106 and the protrusion arrangement
  • positioning hole 61a can be received with high rigidity.
  • FIG. 12 is a perspective view of the cover portion as viewed from the inside in the sheet width direction.
  • the cover 113 covers the disk portion 104 and the portion from the intermediate portion to the rear end portion of the base end portion 107 of the rod-like portion 105 from the outside in the sheet width direction.
  • the cover 113 is formed in a concave shape that opens toward the inner side in the sheet width direction.
  • the cover part 113 has a side wall part 114 that covers the outer peripheral surface of the disk part 104.
  • a plurality of (three in this embodiment) locking claws 114 a that can be locked in the plurality of locking grooves 104 c of the disk portion 104 are provided on the side wall portion 114 of the cover portion 113.
  • the side wall 114 of the cover 113 is formed with a notch 114b in which the protrusion 106 is disposed.
  • the height adjusting member 100 configured as described above rotates together with the input shaft 52 of the height adjusting mechanism 50 by attaching the disk portion 104 of the main body 103 to the flange portion 55 of the input shaft 52 of the height adjusting mechanism 50. It can be rotated around the movement axis Q. Thus, the operator can reciprocate the input shaft 52 in either direction from the neutral position by grasping the lever 102 and reciprocating it in either the upper or lower direction. . As a result, the seat cushion frame 11 can be raised or lowered.
  • the reclining mechanism portion 40 includes the first attached portion 42 and the second attached portion 43 connected to the connecting shaft portion 41, and the reclining operation member. 70, a first mounting portion 76 connected to the first mounted portion 42, a second mounting portion 77 connected to the second mounted portion 43, the first mounting portion 76, and the second. And a fourth rib 79 connecting the mounting portion 77.
  • the reclining operation member 70 can be connected to the connecting shaft portion 41 of the reclining mechanism portion 40 at two locations.
  • the first attachment portion 76 and the second attachment portion 77 are connected by the fourth rib 79, the relative displacement of the first attachment portion 76 and the second attachment portion 77 can be suppressed.
  • strength of the connection structure of the 2nd attachment part 77 and the 2nd to-be-attached part 43 can be improved. Therefore, the mounting rigidity of the reclining operation member 70 can be improved.
  • the fourth rib 79 is provided at a position where it does not overlap the urging member 5 when viewed from the sheet width direction. Therefore, damage to the fourth rib 79 due to interference between the fourth rib 79 and the biasing member 5 can be prevented. Therefore, the mounting rigidity of the reclining operation member 70 can be further improved. Further, it is possible to prevent the generation of sliding noise between the fourth rib 79 and the urging member 5 when the reclining operation member 70 is operated.
  • the outer end portion 5a of the urging member 5 which is a spiral ring is disposed on the upper portion of the urging member 5, whereas the fourth rib 79 is disposed on the lower side of the urging member 5. It is possible to prevent the 4 ribs 79 from interfering with the outer end portion 5a of the urging member 5. For this reason, interference with the 4th rib 79 and the urging
  • the vehicle seat 1 can be reduced in size.
  • the connecting shaft portion 41 is rotated by applying a load to each of the attached portions 42 and 43. In doing so, it is possible to improve the rigidity of the base end portion to which a greater force acts in each of the mounted portions 42 and 43. Therefore, the strength of the reclining mechanism unit 40 can be improved.
  • the vehicle seat 1 is fixed to the seat cushion frame 11 and provided so as to be able to lock the biasing member 5, and the locked member 18 disposed between the connecting shaft portion 41 and the reclining operation member 70. Therefore, the load acting from the reclining operation member 70 toward the connecting shaft portion 41 can be received by the locked member 18 provided so that the biasing member 5 can be locked. Therefore, it is possible to protect the connecting shaft portion 41 while suppressing an increase in the number of parts.
  • the pad support portion 12 that supports the cushion pad of the seat cushion 10 is fixed at a position different from the reclining operation member 70 in the upper portion of the right side plate 15 in the seat width direction, the tilt axis along the seat width direction It is possible to prevent the reclining operation member 70 that rotates integrally with the connecting shaft portion 41 that rotates about P from interfering with a fixed portion between the right side plate 15 and the pad support portion 12. Therefore, the reclining operation member 70 can be reliably operated within a desired rotation range.
  • the input shaft 52 of the height adjusting mechanism 50 is disposed at a position corresponding to the first attached portion 42 and the second attached portion 43 of the reclining mechanism portion 40 in the seat width direction, the reclining mechanism portion 40 and The dimension in the sheet width direction of the area occupied by the height adjusting mechanism 50 can be reduced. Therefore, the vehicle seat 1 can be reduced in size.
  • the vehicle seat 1 is described by taking a vehicle seat in the driver's seat as an example.
  • the present invention is not limited to this.
  • a passenger seat or a rear row seat may be used. Good.
  • the reclining operation member 70 and the height adjustment member 100 are arrange
  • the fourth rib 79 has a shape in which a plurality of flat ribs are connected.
  • the fourth rib 79 is not limited to this, and may extend smoothly in a cylindrical shape, for example.
  • the fourth rib does not necessarily extend along the circumferential direction around the tilt axis P, and may be provided at a position that does not overlap the urging member 5 when viewed from the sheet width direction.
  • the first attachment portion 76 and the second attachment portion 77 are arranged at positions corresponding to the urging member 5 in the seat width direction, but the present invention is not limited to this. If one of the first attachment portion and the second attachment portion is disposed at a position corresponding to the urging member 5 in the seat width direction, the size in the seat width direction of the region occupied by the reclining mechanism portion and the reclining operation member is reduced. can do. Therefore, the vehicle seat can be reduced in size.
  • the flange part 55 of the rotation control member 51 is arrange
  • the present invention is not limited to this. If the flange portion of the rotation restricting member is disposed at a position corresponding to one of the first attached portion and the second attached portion in the seat width direction, the seat width of the region occupied by the reclining mechanism portion and the height adjusting mechanism The dimension in the direction can be reduced. Therefore, the vehicle seat can be reduced in size.
  • the reclining mechanism portion includes the first attached portion and the second attached portion connected to the shaft member, and the reclining operation member is connected to the first attached portion. Since it has a 1st attaching part and a 2nd attaching part connected with respect to a 2nd to-be-attached part, a reclining operation member can be connected with the shaft member of a reclining mechanism part at two places. And since the 1st attachment part and the 2nd attachment part are connected by the connection part, the relative displacement of a 1st attachment part and a 2nd attachment part can be suppressed.
  • strength of the connection structure of a 2nd attachment part and a 2nd to-be-attached part can be improved. Therefore, it is possible to improve the mounting rigidity of the reclining operation member.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

L'invention concerne un siège de véhicule comprenant : un mécanisme d'inclinaison; un élément d'actionnement d'inclinaison (70) destiné à actionner le mécanisme d'inclinaison; et un élément de sollicitation destiné à solliciter un cadre de dossier de siège pour s'incliner par rapport à un cadre de coussin de siège. Le mécanisme d'inclinaison comprend : une partie d'arbre de liaison qui peut être commutée vers un état déverrouillé par rotation; et, disposée davantage vers l'extérieur dans la direction radiale que la partie d'arbre de liaison, une première partie de réception de fixation et une seconde partie de réception de fixation reliées à la partie d'arbre de de liaison. L'élément d'actionnement d'inclinaison (70) comprend : une première partie de fixation (76) qui est reliée à la première partie de réception de fixation; une seconde partie de fixation (77) qui est reliée à la seconde partie de réception de fixation; et une quatrième nervure (79) qui est disposée en relation de non-chevauchement avec l'élément de sollicitation tel qu'observé dans la direction de la largeur du siège et relie la première partie de fixation (76) et la seconde partie de fixation (77).
PCT/JP2017/033956 2017-02-10 2017-09-20 Siège de véhicule Ceased WO2018146853A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-023159 2017-02-10
JP2017023159A JP6504720B2 (ja) 2017-02-10 2017-02-10 車両用シート

Publications (1)

Publication Number Publication Date
WO2018146853A1 true WO2018146853A1 (fr) 2018-08-16

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Application Number Title Priority Date Filing Date
PCT/JP2017/033956 Ceased WO2018146853A1 (fr) 2017-02-10 2017-09-20 Siège de véhicule

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JP (1) JP6504720B2 (fr)
WO (1) WO2018146853A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0518993Y2 (fr) * 1988-09-30 1993-05-19
US6883869B2 (en) * 2003-03-10 2005-04-26 Porter Group, Llc Vehicle seat back recliner
US20080073961A1 (en) * 2006-09-12 2008-03-27 Lear Corporation Reclining mechanism for vehicle seats
JP2008212538A (ja) * 2007-03-07 2008-09-18 Imasen Electric Ind Co Ltd メモリー機構を有するリクライニング装置
JP2013519557A (ja) * 2010-06-22 2013-05-30 カイパー ゲーエムベーハー ウント コンパニー カーゲー 車両座席用のリクライナシステム
JP2014129027A (ja) * 2012-12-28 2014-07-10 Ts Tech Co Ltd シート装置及び操作部構造

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5480583B2 (ja) * 2009-10-14 2014-04-23 デルタ工業株式会社 シートクッションのサイド構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0518993Y2 (fr) * 1988-09-30 1993-05-19
US6883869B2 (en) * 2003-03-10 2005-04-26 Porter Group, Llc Vehicle seat back recliner
US20080073961A1 (en) * 2006-09-12 2008-03-27 Lear Corporation Reclining mechanism for vehicle seats
JP2008212538A (ja) * 2007-03-07 2008-09-18 Imasen Electric Ind Co Ltd メモリー機構を有するリクライニング装置
JP2013519557A (ja) * 2010-06-22 2013-05-30 カイパー ゲーエムベーハー ウント コンパニー カーゲー 車両座席用のリクライナシステム
JP2014129027A (ja) * 2012-12-28 2014-07-10 Ts Tech Co Ltd シート装置及び操作部構造

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JP2018127165A (ja) 2018-08-16

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