WO2015162785A1 - Headrest support device and vehicle seat equipped with same - Google Patents

Headrest support device and vehicle seat equipped with same Download PDF

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Publication number
WO2015162785A1
WO2015162785A1 PCT/JP2014/061734 JP2014061734W WO2015162785A1 WO 2015162785 A1 WO2015162785 A1 WO 2015162785A1 JP 2014061734 W JP2014061734 W JP 2014061734W WO 2015162785 A1 WO2015162785 A1 WO 2015162785A1
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WO
WIPO (PCT)
Prior art keywords
headrest
headrest stay
holder
stay
main body
Prior art date
Application number
PCT/JP2014/061734
Other languages
French (fr)
Japanese (ja)
Inventor
濱野　芳久
耕司 桑村
Original Assignee
ジョンソン コントロールズ テクノロジー カンパニ－
濱野　芳久
耕司 桑村
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 ジョンソン コントロールズ テクノロジー カンパニ－, 濱野　芳久, 耕司 桑村 filed Critical ジョンソン コントロールズ テクノロジー カンパニ－
Priority to CN201480077763.4A priority Critical patent/CN106132772B/en
Priority to JP2016514667A priority patent/JP6220963B2/en
Priority to PCT/JP2014/061734 priority patent/WO2015162785A1/en
Publication of WO2015162785A1 publication Critical patent/WO2015162785A1/en

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head
    • 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
    • B60N2/80—Head-rests

Definitions

  • the present invention relates to a headrest support device and a vehicle seat equipped with the headrest support device.
  • a headrest stay of a seat mounted on a vehicle, for example, an automobile is inserted and supported in a bracket fixed to the top of the seat back frame, and a stop pin made of elastic linear material is fitted to the holder to move the headrest up and down.
  • a headrest support device for blocking is proposed in Patent Document 1.
  • An object of the present invention is to provide a headrest support device that is excellent in operability of vertical adjustment of the headrest and suppresses the generation of rattling noise, and a vehicle seat equipped with the headrest support device.
  • a headrest support device is a headrest stay that is suspended from a lower end portion of a headrest of a vehicle seat and is supported by being engaged with a holder bracket supported by a frame of a seatback of the vehicle seat.
  • a headrest stay having an engaging portion formed in a groove shape in a direction orthogonal to the longitudinal direction of the headrest stay on a peripheral surface of the headrest stay, and a holder for supporting the inserted headrest stay.
  • the holder is a locking member that can be engaged and disengaged from the circumferential direction in the engagement portion of the headrest stay, and the holder of the headrest stay at an appropriate vertical position by engagement with the engagement portion of the headrest stay.
  • a locking member that can lock up and down movement, a flexible holder that can be brought into contact with and separated from the circumferential surface of the headrest stay in the circumferential direction, and the flexible holder can be separated from the circumferential surface of the headrest stay. And an operating member that is movable in a direction to release the locking member from the engaging portion.
  • a vehicle seat includes a seat back having a frame, a holder bracket supported by the frame, a headrest, and the headrest support device described above.
  • the main body and the locking member of the flexible holder move, the main body of the flexible holder is separated from the peripheral surface of the headrest stay, and the locking member is moved to the headrest stay. Detach from the engaging part. For this reason, the sliding resistance of the headrest stay is eliminated, and the operability of vertical adjustment of the headrest stay is excellent. Further, by operating the operation member in the stop direction, the main body of the flexible holder and the locking member move, the main surface of the flexible holder tightens the peripheral surface of the headrest stay, and the locking member engages with the engaging portion of the headrest stay. Match.
  • the headrest stay cannot be moved up and down and there is no play between components, so that the generation of rattling noise can be suppressed. Therefore, it can be set as the headrest support apparatus excellent in commercial property, and the vehicle seat provided with this.
  • the flexible holder includes a main body that can contact and separate from the circumferential surface of the headrest stay in the circumferential direction, a first shape in which the main body contacts the peripheral surface of the headrest stay, and the main body includes the headrest.
  • a mouth opening portion that is deformable between the second shape and the second shape spaced apart from the peripheral surface of the stay may be included.
  • the operation member may deform the mouth opening portion into the second shape by pressing.
  • the flexible holder moves in the opening direction by simply operating the holder operating member in the release direction. For this reason, since the opening part of a flexible holder leaves
  • the locking member may be constantly urged in a direction to engage with the engaging portion of the headrest stay.
  • the locking member is detached from the engaging portion, and the operation member of the holder is stopped in the stop direction, so that the locking member is Engage with the engaging part. Therefore, it is easy to move and fix the headrest stay.
  • FIG. 1 is a perspective view of a seatback of a seat showing a state in which a headrest is removed from a vehicle seat according to a first embodiment of the present invention and an engaging portion of a headrest stay.
  • FIG. 2 is an exploded perspective view of the headrest stay support device of FIG. 1.
  • 3 is a top view of the holder according to the arrow A in FIG. 4 is a cross-sectional view taken along line SB-SB in FIG.
  • FIG. 5 is a cross-sectional view showing a state in which the flexible holder is moved upward by pushing the operation member of FIG. 4.
  • FIG. 6 is an exploded perspective view of the headrest support device shown in FIGS. 1 to 5.
  • FIG. 7 is an enlarged perspective view of the operating member supported by the first head of FIGS.
  • FIG. 8 is an enlarged perspective view of the operation member of FIGS. 4 to 7.
  • FIG. 9 is a top view of the operation member shown in FIG.
  • FIG. 10 is a perspective view of a headrest stay support device according to a second embodiment of the present invention.
  • FIG. 11 is an exploded perspective view of the headrest stay support device of FIG. 10.
  • 12 is a top view of the operation member of FIG. 10 as viewed from above.
  • FIG. 13 is a top view showing a state where the operation member of FIG. 12 is pushed.
  • the headrest support device is a headrest stay that is suspended from the lower end of the headrest of the vehicle seat and is supported by being engaged with a holder bracket supported by a frame of a seatback of the vehicle seat.
  • the headrest stay includes a headrest stay having an engaging portion formed in a groove shape in a direction perpendicular to the longitudinal direction of the headrest stay, and a holder for supporting the inserted headrest stay.
  • the holder is a locking member that can be engaged and disengaged from the circumferential direction in the engagement portion of the headrest stay, and the holder of the headrest stay at an appropriate vertical position by engagement with the engagement portion of the headrest stay.
  • a locking member that can lock up and down movement, a flexible holder that can be brought into contact with and separated from the circumferential surface of the headrest stay in the circumferential direction, and the flexible holder can be separated from the circumferential surface of the headrest stay.
  • an operating member that is movable in a direction to release the locking member from the engaging portion.
  • the headrest support device and the vehicle seat S including the headrest support device according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9.
  • the vehicle is not limited to an automobile, and may be an aircraft, a ship, or the like.
  • the vehicle seat S includes a seat back 1, a headrest 2 that can hold a passenger's head (not shown) from the rear side, and columnar metal headrest stays 3 and 4.
  • a headrest 2 is supported on the top 1 a of the seat back 1.
  • Headrest stays 3 and 4 are suspended from the headrest 2.
  • One headrest stay 3 is provided with a plurality of engaging portions 3 a formed in a groove shape in a direction perpendicular to the longitudinal direction of the headrest stay 3 on the circumferential surface of the headrest stay 3 at an appropriate vertical interval.
  • the vertical distance of the engaging portion 3a is an adjustment margin for the vertical height of the headrest 2.
  • the other headrest stay 4 is not formed with anything corresponding to the engaging portion 3a.
  • the top portion 1 a of the seat back 1 is provided with a holder 5 that is a stay lock member that supports one headrest stay 3 and a holder 6 that supports the other headrest stay 4.
  • One holder 5 includes an operation member 8, a first head portion 9, a cylindrical portion 10, a locking member 13, and a flexible holder 14.
  • the other holder 6 includes a cylinder portion 10 and a second head portion 11.
  • the first head portion 9 and the second head portion 11 are respectively formed with stay insertion ports 7 into which the headrest stays 3 and 4 are inserted.
  • the cylinder portion 10 includes a main body 10c that can be inserted into a hollow cylindrical holder bracket 1c supported by a frame 1b of the seat back 1, an engagement portion 10a that can be engaged with a lower end portion 1ca of the holder bracket 1c, and a headrest stay.
  • 3 includes an insertion port 10b that can move up and down smoothly, and a flange portion 10d formed in a bowl shape at the upper end of the main body 10c.
  • the engaging portion 10a, the insertion port 10b, the main body 10c, and the flange portion 10d are integrally formed of synthetic resin.
  • the insertion port 10b penetrates from the upper end to the lower end of the main body 10c.
  • a flexible holder 14 having a main body 14 a movable in a direction perpendicular to the longitudinal direction of the headrest stay 3 is provided on the upper side of the flange portion 10 d of the cylindrical portion 10.
  • a hollow cylindrical holder portion 14 b is formed on one side of the main body 14 a of the flexible holder 14 in the direction orthogonal to the longitudinal direction of the headrest stay 3.
  • an opening 14c that can be expanded by the operation member 8 is formed on the other side in the direction orthogonal to the longitudinal direction of the headrest stay 3.
  • the flexible holder 14 has a main body 14a, a holder portion 14b, and a mouth opening portion 14c integrally formed of a spring-shaped steel plate.
  • the main body 14 a has an arc shape that allows the headrest stay 3 to move smoothly up and down, and is disposed between the flange portion 10 d of the cylindrical portion 10 and the first head portion 9.
  • the holder portion 14b has a hollow cylindrical shape through which the fixing pin 15 inserted from the through hole 9c formed in the first head portion 9 is inserted.
  • the mouth opening part 14c is V-shaped or Y-shaped when viewed from above. Both terminals of the mouth opening portion 14c are further expanded than the V-shape.
  • the flexible holder 14 has been described as a spring-shaped steel plate, but may be made of synthetic resin. In short, any material may be used as long as the main body 14a and the opening 14c have spring performance.
  • the opening portion 14c When the pressing force by the pressing portion 8a of the operating member 8 is not applied to the opening portion 14c (the operating member 8 is not pushed in the releasing direction), the opening portion 14c is in a closed state. 14a is in contact with the peripheral surface of the headrest stay 3 (pressure contact with sliding resistance). On the other hand, when the pressing force by the pressing portion 8a of the operating member 8 is applied to the opening portion 14c (the operating member 8 is pushed in the releasing direction), the opening portion 14c is the pressing portion of the operating member 8. The main body 14a is separated from the peripheral surface of the headrest stay 3 by being opened and separated by the opening 8a, and the pressure contact by the main body 14a is released (or the pressure contact force is reduced).
  • the locking member 13 is detached from the engaging portion 3a by pushing the operating member 8 in the releasing direction.
  • the headrest stay 3 is released from both the flexible holder 14 and the locking member 13 and can smoothly move up and down.
  • the mouth opening portion 14 c has a shape in which the main body 14 a abuts on the peripheral surface of the headrest stay 3 by the pressing force of the pressing portion 8 a of the operation member 8 that is pushed in the release direction, and the main body 14 a is the headrest stay 3. It is possible to deform between the shape that is detached from the peripheral surface.
  • the first head 9 is integrally formed of synthetic resin.
  • the first head 9 has a stay insertion opening 7 into which the headrest stay 3 can be inserted on the upper surface, an opening 9a formed below, and an opening 9b formed on one side.
  • the first head 9 is fitted after the operation member 8 and the flexible holder 14 are assembled in advance by the opening 9a.
  • An operation member 8 is inserted into the opening 9b so as to be movable back and forth in a substantially horizontal direction.
  • a triangular pressing portion 8 a is formed as viewed from above.
  • a mouth opening portion 14 c is arranged at a position facing the pressing portion 8 a of the operation member 8 in a state inserted into the first head 9. Since the pressing portion 8a and the mouth opening portion 14c are elastically pressed, the operation member 8 is constantly urged in the right direction in FIG. 4 (the direction opposite to the release direction of the operation member 8).
  • the locking member 13 is supported by the operation member 8.
  • the operation member 8 is urged by the winding lock spring 12 in the engaging direction in which the locking member 13 is engaged with the engaging portion 3 a of the headrest stay 3. That is, the locking member 13 is biased by the winding lock spring 12 via the operation member 8.
  • the lock spring 12 is pivotally supported on the lower side of the fixing pin 15 and is locked to the end 8 d of the operation member 8.
  • the locking member 13 is supported at a position opposite to the pressing portion 8 a of the operation member 8 with the headrest stay 3 interposed therebetween, and can be engaged with and disengaged from the engaging portion 3 a of the headrest stay 3.
  • the operation member 8 is pressed by the flexible holder 14 so as to always protrude from the opening 9 b of the first head 9 by a dimension L.
  • the operation member 8 is pressed in the release direction as indicated by the black arrow F, and the operation member 8 is pressed to a position where the dimension L becomes zero, whereby the main body 14 a is moved to FIG. 9. It is movable (deformable) as indicated by the white arrow.
  • the dimension L becomes a movement allowance of the operation member 8.
  • the operation member 8 includes a wall portion 8c through which the headrest stay 3 can penetrate and escapes from the headrest stay 3 by the amount of movement of the operation member 8.
  • a button 8e for pressing the operating member 8 is formed on the side of the operating member 8, and a cover portion 8b is formed between the pressing portion 8a and the button 8e.
  • the pressing part 8a, the cover part 8b, the wall part 8c, the end part 8d, and the button 8e are integrally formed.
  • the operation member 8 is locked together with the operation member 8 by pushing the operation member 8 against the spring force of the lock spring 12 and the opening 14c of the flexible holder 14 in the releasing direction, that is, as shown in FIGS.
  • the opening 14c of the flexible holder 14 is opened by the pressing portion 8a of the operating member 8.
  • the main body 14 a of the flexible holder 14 is separated from the peripheral surface of the headrest stay 3, and the locking member 13 is detached from the engaging portion 3 a of the headrest stay 3.
  • the sliding resistance of the headrest stay 3 is eliminated or reduced, and the operability of the vertical adjustment of the headrest stay 3 is excellent.
  • the locking member 13 is moved in the stop direction, which is the direction opposite to the release direction, by the spring force of the opening 14 c of the flexible holder 14, and the main body 14 a of the flexible holder 14 is moved.
  • a force opposite to the white arrow in FIG. 9 acts, the main body 14 a tightens the peripheral surface of the headrest stay 3, and the locking member 13 engages with the engaging portion 3 a of the headrest stay 3.
  • the headrest stay 3 cannot be moved up and down and there is no play between components, the generation of rattling noise can be suppressed. Therefore, it can be set as the vehicle seat excellent in merchantability.
  • the operating member 8 of the holder 5 can press the opening 14c of the flexible holder 14. For this reason, the opening part 14c of the flexible holder 14 is moved (deformed) only by operating the operating member 8 of the holder 5 in the releasing direction. Thereby, the main body 14a of the flexible holder 14 is reliably separated from the peripheral surface of the headrest stay 3, and the sliding resistance of the headrest stay 3 is eliminated or reduced, so that the operability of the headrest stay 3 in the vertical movement is excellent.
  • the locking member 13 is always urged through the operation member 8 by the opening portion 14 c of the flexible holder 14 in the direction of engaging with the engaging portion 3 a of the headrest stay 3. Therefore, by operating the operation member 8 of the holder 5 in the release direction as indicated by the black arrow F shown in FIGS. 5 and 9, the locking member 13 is detached from the engaging portion 3a. Further, by stopping the operation of the operating member 8 of the holder 5 in the releasing direction, the locking member 13 is engaged with the engaging portion 3a. Since the main body 14a is surely separated from the peripheral surface of the headrest stay 3 simply by moving (deforming) the main body 14a of the flexible holder 14 in this way, the sliding resistance of the headrest stay 3 is eliminated or reduced. Excellent operability for vertical adjustment. The headrest stay 3 and the holder 6 originally have no sliding resistance. Therefore, the movement and fixation of the headrest stay 3 are simplified.
  • the spring force of the lock spring 12 and the opening 14c of the flexible holder 14 is opposite to the black arrow F in FIGS.
  • the button 8e moves to the right side of.
  • the opening 14d of the flexible holder 14 closes, the main body 14a comes into contact with the peripheral surface of the headrest stay 3, and the sliding resistance between the main body 14a and the peripheral surface of the headrest stay 3 increases. .
  • the locking member 13 engages with the engaging portion 3 a of the headrest stay 3, and there is no play between the main body 14 a and the peripheral surface of the headrest stay 3.
  • the headrest stay 3 cannot be moved up and down and there is no play between components, so that the generation of rattling noise is suppressed.
  • a headrest support device according to a second embodiment of the present invention and a vehicle seat equipped with the same will be described in detail with reference to FIGS. 10 to 13.
  • the vehicle is not limited to an automobile, and may be an aircraft, a ship, or the like.
  • the description of the same configuration as that of the first embodiment is omitted, and the same reference numerals are used.
  • the holder 20 including the operation member 21, the first head 9 and the like shown in FIGS. 10 to 13 is not limited to the shape shown in the figure, and for example, the outer shape is rounded as in the first embodiment. Also good. 12 and 13 omit the part of the first head 9 as appropriate in order to show the internal structure.
  • the top portion 1 a of the seat back 1 is provided with a holder 20 that is a stay lock member that supports one headrest stay 3 and a holder 6 that supports the other headrest stay 4.
  • One holder 20 includes an operation member 21, a first head 9, a cylindrical portion 10, a locking member 22, and a flexible holder 23.
  • a flexible holder 23 having a main body 23 a that is movable in a direction orthogonal to the longitudinal direction of the headrest stay 3 is provided on the upper side of the flange portion 10 d (see FIG. 6) of the cylindrical portion 10.
  • a triangular holder portion 23b is formed on one side of the main body 23a of the flexible holder 23 in a direction orthogonal to the longitudinal direction of the headrest stay 3.
  • an opening portion 23 c that can be expanded by the operation member 21 is formed.
  • the flexible holder 23 has a main body 23a, a holder portion 23b, and a mouth opening portion 23c that are integrally formed of a spring-shaped steel plate.
  • the main body 23 a has an arc shape that allows the headrest stay 3 to smoothly move up and down, and is disposed between the flange portion 10 d of the cylindrical portion 10 and the first head portion 9.
  • the holder portion 23b is formed in a triangular shape when viewed from above. The holder portion 23 b is engaged with the concave portion 21 d of the operation member 21.
  • the mouth opening 23c is V-shaped when viewed from above.
  • the flexible holder 23 has been described as a spring-shaped steel plate, but may be made of synthetic resin. In short, any material may be used as long as the main body 23a and the opening portion 23c have spring performance.
  • the opening portion 23c When the pressing force by the pressing portion 21a of the operating member 21 is not applied to the opening portion 23c (the operating member 21 is not pushed in the releasing direction), the opening portion 23c is in a closed state. 23a is in contact with the peripheral surface of the headrest stay 3 (pressure contact with sliding resistance). On the other hand, when the pressing force by the pressing portion 21a of the operating member 21 is applied to the opening portion 23c (the operating member 21 is pushed in the release direction), the opening portion 23c is the pressing portion of the operating member 21.
  • the main body 23a is separated from the peripheral surface of the headrest stay 3 by being expanded and spaced apart (deformed) by the opening 21a, and the press contact by the main body 23a is released (or the press contact force is reduced).
  • the locking member 22 is disengaged from the engaging portion 3a by pushing the operating member 21 in the releasing direction.
  • the headrest stay 3 is released from both the flexible holder 23 and the locking member 22 and can be moved up and down smoothly.
  • the opening portion 23c has a shape in which the main body 23a abuts on the peripheral surface of the headrest stay 3 and the main body 23a is the headrest stay 3 due to the pressing force of the pressing portion 21a of the operation member 21 pushed in the release direction. It is possible to deform between the shape that is detached from the peripheral surface.
  • the locking member 22 is formed in a strip shape and is supported by the operation member 21.
  • the operating member 21 includes a pressing portion 21a formed in a triangular shape when viewed from above, a main body 21b fixed to or integrally formed with the pressing portion 21a, a button 21e for pressing the operating member 21, and a pressing portion 21a. And a leaf spring 21c formed on the opposite side of the button 21e.
  • the locking member 22 is urged in the engaging direction by the leaf spring 21c to the engaging portion 3a of the headrest stay 3 via the main body 21b.
  • the operating member 21 is pressed so as to protrude from the opening 9b of the first head 9.
  • the operation member 21 can be pressed by pressing the button 21e of the operation member 21 as indicated by a black arrow F in FIG.
  • the operation member 21 includes a through hole 21d through which the headrest stay 3 can be penetrated and escaped from the headrest stay 3 by the amount of movement of the operation member 21.
  • the portion 21a opens the opening 23c of the flexible holder 23 and the locking member 22 moves in the release direction.
  • the main body 23a of the flexible holder 23 is separated from the peripheral surface of the headrest stay 3, and a play can be made between the main body 23a of the flexible holder 23 and the headrest stay 3 to eliminate or reduce sliding resistance.
  • the sliding resistance of the headrest stay 3 is low or eliminated, the operation force is lightened, and the headrest stay 3 can be moved up and down.
  • the main body 23a is surely separated from the peripheral surface of the headrest stay 3 only by moving (deforming) the main body 23a of the flexible holder 23, so that the operability of the vertical adjustment of the headrest stay 3 is excellent.
  • the headrest stay 3 and the holder 6 originally have no sliding resistance.
  • the locking member 22 moves to disengage from the engaging portion 3a of the headrest stay 3, and the headrest 2 is moved to the headrest. It is possible to move up and down to the position of the next engaging portion 3 a of the stay 3.
  • the spring force of the leaf spring 21c and the opening 23c of the flexible holder 23 is opposite to the black arrow F in FIG. 13, that is, the white arrow in FIG.
  • the button 21e moves in the direction.
  • the opening portion 23d of the flexible holder 23 is closed, the main body 23a comes into contact with the peripheral surface of the headrest stay 3, and the sliding resistance between the main body 23a and the peripheral surface of the headrest stay 3 is reduced. Get higher.
  • the locking member 22 engages with the engaging portion 3a of the headrest stay 3, and there is no play between the main body 23a and the peripheral surface of the headrest stay 3.
  • the headrest stay 3 cannot be moved up and down and there is no play between components, so that the generation of rattling noise is suppressed.
  • the pressing portion 21a and the main body 21b of the operation member 21 have been described as being fixed or integrally formed with each other, the present invention is not limited to this.
  • the pressing part 21a and the main body 21b may be provided so as to be relatively movable.
  • the pressing portion 21a of the operation member 21 opens the opening portion 23c of the flexible holder 23 while moving the flexible holder 23 to the left (release).
  • the flexible holder 23 receives the pressing force from the pressing portion 21a, and moves the main body 21b of the operation member 21 to the left side by the holder portion 23b.

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

Abstract

In the present invention, a headrest support device includes: a locking member (13, 22) capable of being engaged with and disengaged from an engagement unit (3a) of a headrest stay (3) of a headrest (2) of a vehicle seat (S) in a circumferential direction, and capable of locking vertical movement of the headrest stay (3) at an appropriate vertical position by engaging with the engagement unit (3a); a flexible holder (14, 23) capable of coming into contact with and separating from a circumferential surface of the headrest stay (3) in a circumferential direction; and an operation member (8, 21) capable of causing the flexible holder (14, 23) to be separated from the circumferential surface of the headrest stay (3), and capable of moving in a direction that separates the locking member (13, 22) from the engagement unit (3a).

Description

ヘッドレスト支持装置及びこれを備えた乗り物用座席Headrest support device and vehicle seat provided with the same
　本発明は、ヘッドレスト支持装置及びこれを備えた乗り物用座席に関する。 The present invention relates to a headrest support device and a vehicle seat equipped with the headrest support device.
　乗り物、例えば自動車に搭載される座席のヘッドレストステーをシートバックフレームの頂部に固定したブラケット内に挿入して支持し、ホルダーに対し弾性線状材のストップピンを嵌装してヘッドレストの上下動を阻止するヘッドレスト支持装置が特許文献１に提案されている。 A headrest stay of a seat mounted on a vehicle, for example, an automobile is inserted and supported in a bracket fixed to the top of the seat back frame, and a stop pin made of elastic linear material is fitted to the holder to move the headrest up and down. A headrest support device for blocking is proposed in Patent Document 1.
実開昭５８－１４７４５６号公報Japanese Utility Model Publication No. 58-147456
　上記のヘッドレスト支持装置にあっては、ヘッドレストの上下動を確実にロックさせるように弾性線状材のストップピンのバネ定数を大きくすると、大きな操作力が必要となり、ヘッドレストの上下調整の操作性が悪くなる。 In the above headrest support device, if the spring constant of the stop pin of the elastic linear material is increased so that the vertical movement of the headrest is securely locked, a large operating force is required, and the operability of the headrest vertical adjustment is reduced. Deteriorate.
　本発明は、ヘッドレストの上下調整の操作性に優れ且つガタ音の発生を抑えたヘッドレスト支持装置及びこれを備えた乗り物用座席を提供することを目的とする。 An object of the present invention is to provide a headrest support device that is excellent in operability of vertical adjustment of the headrest and suppresses the generation of rattling noise, and a vehicle seat equipped with the headrest support device.
　実施形態に係るヘッドレスト支持装置は、乗り物用座席のヘッドレストの下端部より垂下して設けられて前記乗り物用座席のシートバックのフレームに支持されたホルダーブラケットに係合して支持されるヘッドレストステーであって、前記ヘッドレストステーの周面に前記ヘッドレストステーの長手方向に直交する方向に溝状に形成された係合部を有するヘッドレストステーと、挿入された前記ヘッドレストステーを支持するホルダーとを備える。前記ホルダーは、前記ヘッドレストステーの前記係合部に前記周方向から係合離脱可能な係止部材であって前記ヘッドレストステーの前記係合部との係合により適宜の上下位置で前記ヘッドレストステーの上下移動をロック可能な係止部材と、前記ヘッドレストステーの前記周面に周方向から当接離間可能なフレキシブルホルダーと、前記フレキシブルホルダーを前記ヘッドレストステーの前記周面から離間させることが可能であって前記係止部材を前記係合部から離脱する方向に移動可能な操作部材とを含む。 A headrest support device according to an embodiment is a headrest stay that is suspended from a lower end portion of a headrest of a vehicle seat and is supported by being engaged with a holder bracket supported by a frame of a seatback of the vehicle seat. A headrest stay having an engaging portion formed in a groove shape in a direction orthogonal to the longitudinal direction of the headrest stay on a peripheral surface of the headrest stay, and a holder for supporting the inserted headrest stay. The holder is a locking member that can be engaged and disengaged from the circumferential direction in the engagement portion of the headrest stay, and the holder of the headrest stay at an appropriate vertical position by engagement with the engagement portion of the headrest stay. A locking member that can lock up and down movement, a flexible holder that can be brought into contact with and separated from the circumferential surface of the headrest stay in the circumferential direction, and the flexible holder can be separated from the circumferential surface of the headrest stay. And an operating member that is movable in a direction to release the locking member from the engaging portion.
　実施形態に係る乗り物用座席は、フレームを有するシートバックと、前記フレームに支持されたホルダーブラケットと、ヘッドレストと、上記のヘッドレスト支持装置とを備える。 A vehicle seat according to an embodiment includes a seat back having a frame, a holder bracket supported by the frame, a headrest, and the headrest support device described above.
  上記構成によれば、操作部材を解除方向に操作することで、フレキシブルホルダーの本体及び係止部材が移動し、ヘッドレストステーの周面からフレキシブルホルダーの本体が離間し、係止部材がヘッドレストステーの係合部から離脱する。このため、ヘッドレストステーの摺動抵抗が無くなり、ヘッドレストステーの上下調整の操作性に優れる。また、操作部材を停止方向に操作することで、フレキシブルホルダーの本体及び係止部材が移動し、ヘッドレストステーの周面をフレキシブルホルダーの本体が締め付け、係止部材がヘッドレストステーの係合部に係合する。これにより、ヘッドレストステーの上下動が不可能になると共に部品間の遊びが無くなるので、ガタ音の発生が抑えられる。よって、商品性の優れたヘッドレスト支持装置及びこれを備えた乗り物用座席とすることができる。 According to the above configuration, by operating the operation member in the release direction, the main body and the locking member of the flexible holder move, the main body of the flexible holder is separated from the peripheral surface of the headrest stay, and the locking member is moved to the headrest stay. Detach from the engaging part. For this reason, the sliding resistance of the headrest stay is eliminated, and the operability of vertical adjustment of the headrest stay is excellent. Further, by operating the operation member in the stop direction, the main body of the flexible holder and the locking member move, the main surface of the flexible holder tightens the peripheral surface of the headrest stay, and the locking member engages with the engaging portion of the headrest stay. Match. As a result, the headrest stay cannot be moved up and down and there is no play between components, so that the generation of rattling noise can be suppressed. Therefore, it can be set as the headrest support apparatus excellent in commercial property, and the vehicle seat provided with this.
　また、前記フレキシブルホルダーは、前記ヘッドレストステーの前記周面に前記周方向から当接離間可能な本体と、前記本体が前記ヘッドレストステーの前記周面に当接する第１の形状と前記本体が前記ヘッドレストステーの前記周面から離間する第２の形状との間で変形可能な口開き部とを含んでもよい。前記操作部材は、前記口開き部を押圧により前記第２の形状に変形させてもよい。 The flexible holder includes a main body that can contact and separate from the circumferential surface of the headrest stay in the circumferential direction, a first shape in which the main body contacts the peripheral surface of the headrest stay, and the main body includes the headrest. A mouth opening portion that is deformable between the second shape and the second shape spaced apart from the peripheral surface of the stay may be included. The operation member may deform the mouth opening portion into the second shape by pressing.
　上記構成によれば、ホルダーの操作部材を解除方向に操作するだけで、フレキシブルホルダーの口開き部を開く方向に移動する。このため、フレキシブルホルダーの口開き部がヘッドレストステーの周面から確実に離れるので、ヘッドレストステーの上下動の操作性に優れる。 に よ According to the above configuration, the flexible holder moves in the opening direction by simply operating the holder operating member in the release direction. For this reason, since the opening part of a flexible holder leaves | separates reliably from the surrounding surface of a headrest stay, it is excellent in the operativity of the vertical movement of a headrest stay.
　また、前記係止部材は、前記ヘッドレストステーの前記係合部に係合する方向に常時付勢されてもよい。 Further, the locking member may be constantly urged in a direction to engage with the engaging portion of the headrest stay.
　上記構成によれば、ホルダーの操作部材を解除委方向に操作するだけで、係止部材が係合部から離脱し、ホルダーの操作部材を停止方向への操作を止めることにより、係止部材が係合部に係合する。よって、ヘッドレストステーの可動及び固定が簡易である。 According to the above configuration, simply by operating the operation member of the holder in the release commission direction, the locking member is detached from the engaging portion, and the operation member of the holder is stopped in the stop direction, so that the locking member is Engage with the engaging part. Therefore, it is easy to move and fix the headrest stay.
図１は、本発明の第１実施形態に係る乗り物用座席からヘッドレストを取り外した状態と、ヘッドレストステーの係合部を示す座席のシートバックの斜視図である。FIG. 1 is a perspective view of a seatback of a seat showing a state in which a headrest is removed from a vehicle seat according to a first embodiment of the present invention and an engaging portion of a headrest stay. 図２は、図１のヘッドレストステーの支持装置の分解斜視図である。FIG. 2 is an exploded perspective view of the headrest stay support device of FIG. 1. 図３は、図２の矢視Ａに係るホルダーの上面図である。3 is a top view of the holder according to the arrow A in FIG. 図４は、図３のＳＢ－ＳＢ線に沿う断面図である。4 is a cross-sectional view taken along line SB-SB in FIG. 図５は、図４の操作部材を押し込んだことにより、フレキシブルホルダーが上方に移動した状態を示す断面図である。FIG. 5 is a cross-sectional view showing a state in which the flexible holder is moved upward by pushing the operation member of FIG. 4. 図６は、図１乃至図５に示すヘッドレスト支持装置の分解斜視図である。FIG. 6 is an exploded perspective view of the headrest support device shown in FIGS. 1 to 5. 図７は、図４、図５の第１頭部に支持された操作部材の拡大斜視図である。FIG. 7 is an enlarged perspective view of the operating member supported by the first head of FIGS. 4 and 5. 図８は、図４乃至図７の操作部材の拡大斜視図である。FIG. 8 is an enlarged perspective view of the operation member of FIGS. 4 to 7. 図９は、図８に示す操作部材の上面図である。FIG. 9 is a top view of the operation member shown in FIG. 図１０は、本発明の第２実施形態に係るヘッドレストステーの支持装置の斜視図である。FIG. 10 is a perspective view of a headrest stay support device according to a second embodiment of the present invention. 図１１は、図１０のヘッドレストステーの支持装置の分解斜視図である。FIG. 11 is an exploded perspective view of the headrest stay support device of FIG. 10. 図１２は、図１０の操作部材を上側から見た上面図である。12 is a top view of the operation member of FIG. 10 as viewed from above. 図１３は、図１２の操作部材を押し込んだ状態を示す上面図である。FIG. 13 is a top view showing a state where the operation member of FIG. 12 is pushed.
　ヘッドレストの上下調整の操作性に優れ且つガタ音の発生を抑えたヘッドレスト支持装置及びこれを備えた乗り物用座席を提供する、という目的を、以下の構成により実現した。すなわち、ヘッドレスト支持装置は、乗り物用座席のヘッドレストの下端部より垂下して設けられて前記乗り物用座席のシートバックのフレームに支持されたホルダーブラケットに係合して支持されるヘッドレストステーであって、前記ヘッドレストステーの周面に前記ヘッドレストステーの長手方向に直交する方向に溝状に形成された係合部を有するヘッドレストステーと、挿入された前記ヘッドレストステーを支持するホルダーとを備える。前記ホルダーは、前記ヘッドレストステーの前記係合部に前記周方向から係合離脱可能な係止部材であって前記ヘッドレストステーの前記係合部との係合により適宜の上下位置で前記ヘッドレストステーの上下移動をロック可能な係止部材と、前記ヘッドレストステーの前記周面に周方向から当接離間可能なフレキシブルホルダーと、前記フレキシブルホルダーを前記ヘッドレストステーの前記周面から離間させることが可能であって前記係止部材を前記係合部から離脱する方向に移動可能な操作部材とを含む。 The objective of providing a headrest support device that has excellent operability in adjusting the headrest up and down and that suppresses the generation of rattling noise and a vehicle seat equipped with the headrest support device has been realized by the following configuration. That is, the headrest support device is a headrest stay that is suspended from the lower end of the headrest of the vehicle seat and is supported by being engaged with a holder bracket supported by a frame of a seatback of the vehicle seat. The headrest stay includes a headrest stay having an engaging portion formed in a groove shape in a direction perpendicular to the longitudinal direction of the headrest stay, and a holder for supporting the inserted headrest stay. The holder is a locking member that can be engaged and disengaged from the circumferential direction in the engagement portion of the headrest stay, and the holder of the headrest stay at an appropriate vertical position by engagement with the engagement portion of the headrest stay. A locking member that can lock up and down movement, a flexible holder that can be brought into contact with and separated from the circumferential surface of the headrest stay in the circumferential direction, and the flexible holder can be separated from the circumferential surface of the headrest stay. And an operating member that is movable in a direction to release the locking member from the engaging portion.
　以下、本発明の第１実施形態に係るヘッドレスト支持装置及びこれを備えた乗り物用座席Ｓを図１～図９に基づいて詳細に説明する。第１実施形態では、例えば自動車に配された乗り物用座席Ｓの構成を説明するが、乗り物は自動車に限定されず、航空機や船舶等であってもよい。 Hereinafter, the headrest support device and the vehicle seat S including the headrest support device according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9. In the first embodiment, for example, the configuration of a vehicle seat S arranged in an automobile will be described. However, the vehicle is not limited to an automobile, and may be an aircraft, a ship, or the like.
　乗り物用座席Ｓは、シートバック１と、図示しない乗員の頭部を後側より保持可能なヘッドレスト２と、円柱状で金属製のヘッドレストステー３及び４とを備える。シートバック１の頂部１ａには、ヘッドレスト２が支持されている。ヘッドレスト２からは、ヘッドレストステー３及び４が垂下されている。一方のヘッドレストステー３には、適宜の上下間隔でヘッドレストステー３の周面にヘッドレストステー３の長手方向に直交する方向に溝状に形成された係合部３ａが複数設けられている。この係合部３ａの上下間隔が、ヘッドレスト２の上下高さの調節代となる。他方のヘッドレストステー４には、係合部３ａに相当するものは形成されていない。 The vehicle seat S includes a seat back 1, a headrest 2 that can hold a passenger's head (not shown) from the rear side, and columnar metal headrest stays 3 and 4. A headrest 2 is supported on the top 1 a of the seat back 1. Headrest stays 3 and 4 are suspended from the headrest 2. One headrest stay 3 is provided with a plurality of engaging portions 3 a formed in a groove shape in a direction perpendicular to the longitudinal direction of the headrest stay 3 on the circumferential surface of the headrest stay 3 at an appropriate vertical interval. The vertical distance of the engaging portion 3a is an adjustment margin for the vertical height of the headrest 2. The other headrest stay 4 is not formed with anything corresponding to the engaging portion 3a.
　シートバック１の頂部１ａには、一方のヘッドレストステー３を支持するステーロック部材であるホルダー５と、他方のヘッドレストステー４を支持するホルダー６とがそれぞれ設けられている。 The top portion 1 a of the seat back 1 is provided with a holder 5 that is a stay lock member that supports one headrest stay 3 and a holder 6 that supports the other headrest stay 4.
　一方のホルダー５は、操作部材８と、第１頭部９と、筒部１０と、係止部材１３と、フレキシブルホルダー１４とを備える。他方のホルダー６は、筒部１０と、第２頭部１１とを備える。第１頭部９及び第２頭部１１には、ヘッドレストステー３、４が挿入されるステー挿入口７がそれぞれ形成されている。 One holder 5 includes an operation member 8, a first head portion 9, a cylindrical portion 10, a locking member 13, and a flexible holder 14. The other holder 6 includes a cylinder portion 10 and a second head portion 11. The first head portion 9 and the second head portion 11 are respectively formed with stay insertion ports 7 into which the headrest stays 3 and 4 are inserted.
　筒部１０は、シートバック１のフレーム１ｂに支持された中空円筒状のホルダーブラケット１ｃに挿入可能な本体１０ｃと、ホルダーブラケット１ｃの下端部１ｃａに係合可能な係合部１０ａと、ヘッドレストステー３がスムーズに上下動可能な挿入口１０ｂと、本体１０ｃの上端部に鍔状に形成されたフランジ部１０ｄとを備える。係合部１０ａ、挿入口１０ｂ、本体１０ｃ、フランジ部１０ｄは、合成樹脂により一体に形成されている。挿入口１０ｂは、本体１０ｃの上端部から下端部まで貫通している。 The cylinder portion 10 includes a main body 10c that can be inserted into a hollow cylindrical holder bracket 1c supported by a frame 1b of the seat back 1, an engagement portion 10a that can be engaged with a lower end portion 1ca of the holder bracket 1c, and a headrest stay. 3 includes an insertion port 10b that can move up and down smoothly, and a flange portion 10d formed in a bowl shape at the upper end of the main body 10c. The engaging portion 10a, the insertion port 10b, the main body 10c, and the flange portion 10d are integrally formed of synthetic resin. The insertion port 10b penetrates from the upper end to the lower end of the main body 10c.
　図４、５に示すように、筒部１０のフランジ部１０ｄの上側には、ヘッドレストステー３の長手方向に直交する方向に移動可能な本体１４ａを有するフレキシブルホルダー１４が設けられている。図６及び図８に示すように、フレキシブルホルダー１４の本体１４ａのヘッドレストステー３の長手方向に直交する方向の一方には、中空円筒状のホルダー部１４ｂが形成されている。ヘッドレストステー３の長手方向に直交する方向の他方には、操作部材８によって拡開可能な口開き部１４ｃが形成されている。 As shown in FIGS. 4 and 5, a flexible holder 14 having a main body 14 a movable in a direction perpendicular to the longitudinal direction of the headrest stay 3 is provided on the upper side of the flange portion 10 d of the cylindrical portion 10. As shown in FIGS. 6 and 8, a hollow cylindrical holder portion 14 b is formed on one side of the main body 14 a of the flexible holder 14 in the direction orthogonal to the longitudinal direction of the headrest stay 3. On the other side in the direction orthogonal to the longitudinal direction of the headrest stay 3, an opening 14c that can be expanded by the operation member 8 is formed.
　フレキシブルホルダー１４は、バネ状鋼板により本体１４ａとホルダー部１４ｂと口開き部１４ｃとが一体に形成されている。本体１４ａは、ヘッドレストステー３がスムーズに上下動可能な円弧状をなし且つ筒部１０のフランジ部１０ｄと第１頭部９との間に配置されている。ホルダー部１４ｂは、第１頭部９に形成した貫通孔９ｃから挿入された固定ピン１５が挿通される中空円筒状をなす。 The flexible holder 14 has a main body 14a, a holder portion 14b, and a mouth opening portion 14c integrally formed of a spring-shaped steel plate. The main body 14 a has an arc shape that allows the headrest stay 3 to move smoothly up and down, and is disposed between the flange portion 10 d of the cylindrical portion 10 and the first head portion 9. The holder portion 14b has a hollow cylindrical shape through which the fixing pin 15 inserted from the through hole 9c formed in the first head portion 9 is inserted.
　口開き部１４ｃは、上方から見てＶ字状或いはＹ字状をなす。口開き部１４ｃの両端末は、Ｖ字より更に広がっている。フレキシブルホルダー１４は、バネ状鋼板と説明したが、合成樹脂によりなっていても良い。要は、本体１４ａ及び口開き部１４ｃがスプリング性能を有していればどのような材料でも良い。 The mouth opening part 14c is V-shaped or Y-shaped when viewed from above. Both terminals of the mouth opening portion 14c are further expanded than the V-shape. The flexible holder 14 has been described as a spring-shaped steel plate, but may be made of synthetic resin. In short, any material may be used as long as the main body 14a and the opening 14c have spring performance.
　口開き部１４ｃに操作部材８の押圧部８ａによる押圧力がかかっていない状態（操作部材８が解除方向に押し込み操作されていない状態）では、口開き部１４ｃが閉じた状態となることで本体１４ａがヘッドレストステー３の周面に当接（摺動抵抗をもって圧接）している。一方、口開き部１４ｃに操作部材８の押圧部８ａによる押圧力がかかっている状態（操作部材８が解除方向に押し込み操作されている状態）では、口開き部１４ｃが操作部材８の押圧部８ａにより口開き状に拡開して離間することで、本体１４ａがヘッドレストステー３の周面より離れ、本体１４ａによる圧接が解除される（或いは、圧接力が小さくなる）。同時に、操作部材８を解除方向に押し込み操作することで、係止部材１３が係合部３ａから離脱する。これにより、ヘッドレストステー３がフレキシブルホルダー１４と係止部材１３との両方から開放されてスムーズに上下動可能となる。上記のように、口開き部１４ｃは、解除方向に押し込み操作された操作部材８の押圧部８ａによる押圧力により、本体１４ａがヘッドレストステー３の周面に当接する形状と本体１４ａがヘッドレストステー３の周面から離脱する形状との間で変形可能となっている。 When the pressing force by the pressing portion 8a of the operating member 8 is not applied to the opening portion 14c (the operating member 8 is not pushed in the releasing direction), the opening portion 14c is in a closed state. 14a is in contact with the peripheral surface of the headrest stay 3 (pressure contact with sliding resistance). On the other hand, when the pressing force by the pressing portion 8a of the operating member 8 is applied to the opening portion 14c (the operating member 8 is pushed in the releasing direction), the opening portion 14c is the pressing portion of the operating member 8. The main body 14a is separated from the peripheral surface of the headrest stay 3 by being opened and separated by the opening 8a, and the pressure contact by the main body 14a is released (or the pressure contact force is reduced). At the same time, the locking member 13 is detached from the engaging portion 3a by pushing the operating member 8 in the releasing direction. As a result, the headrest stay 3 is released from both the flexible holder 14 and the locking member 13 and can smoothly move up and down. As described above, the mouth opening portion 14 c has a shape in which the main body 14 a abuts on the peripheral surface of the headrest stay 3 by the pressing force of the pressing portion 8 a of the operation member 8 that is pushed in the release direction, and the main body 14 a is the headrest stay 3. It is possible to deform between the shape that is detached from the peripheral surface.
　第１頭部９は、合成樹脂により一体に形成されている。第１頭部９は、上面にヘッドレストステー３が挿入可能なステー挿入口７が形成され、下方に開口９ａが形成され、側方の一方に開口９ｂが形成されている。開口９ａにより予め操作部材８及びフレキシブルホルダー１４が組み立てられた後に第１頭部９が嵌合される。開口９ｂには、操作部材８が略水平方向に進退自在に挿入されている。操作部材８の側方の内側には、上面から見て三角状の押圧部８ａが形成されている。第１頭部９に挿入した状態の操作部材８の押圧部８ａに対向する位置には、口開き部１４ｃが配置されている。押圧部８ａ及び口開き部１４ｃが弾性的に圧接していることで、操作部材８を図４の右方向（操作部材８の解除方向と反対の方向）に常時付勢している。 The first head 9 is integrally formed of synthetic resin. The first head 9 has a stay insertion opening 7 into which the headrest stay 3 can be inserted on the upper surface, an opening 9a formed below, and an opening 9b formed on one side. The first head 9 is fitted after the operation member 8 and the flexible holder 14 are assembled in advance by the opening 9a. An operation member 8 is inserted into the opening 9b so as to be movable back and forth in a substantially horizontal direction. On the inner side of the side of the operation member 8, a triangular pressing portion 8 a is formed as viewed from above. A mouth opening portion 14 c is arranged at a position facing the pressing portion 8 a of the operation member 8 in a state inserted into the first head 9. Since the pressing portion 8a and the mouth opening portion 14c are elastically pressed, the operation member 8 is constantly urged in the right direction in FIG. 4 (the direction opposite to the release direction of the operation member 8).
　係止部材１３は、操作部材８に支持されている。操作部材８は、巻き状のロックスプリング１２により、係止部材１３がヘッドレストステー３の係合部３ａに係合する係合方向に付勢されている。つまり、係止部材１３は、操作部材８を介して巻き状のロックスプリング１２により付勢されている。ロックスプリング１２は、固定ピン１５の下側に軸支されると共に操作部材８の端部８ｄに係止されている。係止部材１３は、操作部材８の押圧部８ａとはヘッドレストステー３を間に挟んだ反対側の位置で支持され、ヘッドレストステー３の係合部３ａに係合離脱可能となっている。 The locking member 13 is supported by the operation member 8. The operation member 8 is urged by the winding lock spring 12 in the engaging direction in which the locking member 13 is engaged with the engaging portion 3 a of the headrest stay 3. That is, the locking member 13 is biased by the winding lock spring 12 via the operation member 8. The lock spring 12 is pivotally supported on the lower side of the fixing pin 15 and is locked to the end 8 d of the operation member 8. The locking member 13 is supported at a position opposite to the pressing portion 8 a of the operation member 8 with the headrest stay 3 interposed therebetween, and can be engaged with and disengaged from the engaging portion 3 a of the headrest stay 3.
　操作部材８は、図４に示すように、フレキシブルホルダー１４により第１頭部９の開口９ｂから寸法Ｌだけ常時突出するように押圧されている。図５及び図９に示すように、操作部材８を黒矢印Ｆに示すように解除方向に押圧して、寸法Ｌがゼロになる位置まで操作部材８を押圧することで、本体１４ａが図９の白矢印に示すように移動可能（変形可能）となっている。寸法Ｌが操作部材８の移動代となる。 As shown in FIG. 4, the operation member 8 is pressed by the flexible holder 14 so as to always protrude from the opening 9 b of the first head 9 by a dimension L. As shown in FIGS. 5 and 9, the operation member 8 is pressed in the release direction as indicated by the black arrow F, and the operation member 8 is pressed to a position where the dimension L becomes zero, whereby the main body 14 a is moved to FIG. 9. It is movable (deformable) as indicated by the white arrow. The dimension L becomes a movement allowance of the operation member 8.
　操作部材８は、ヘッドレストステー３が貫通可能であると共に操作部材８の移動代分だけヘッドレストステー３から逃げた壁部８ｃを備える。操作部材８の側方には、操作部材８を押圧するためのボタン８ｅが形成され、押圧部８ａとボタン８ｅとの間にはカバー部８ｂが形成されている。押圧部８ａ、カバー部８ｂ、壁部８ｃ、端部８ｄ、ボタン８ｅは、一体に形成されている。 The operation member 8 includes a wall portion 8c through which the headrest stay 3 can penetrate and escapes from the headrest stay 3 by the amount of movement of the operation member 8. A button 8e for pressing the operating member 8 is formed on the side of the operating member 8, and a cover portion 8b is formed between the pressing portion 8a and the button 8e. The pressing part 8a, the cover part 8b, the wall part 8c, the end part 8d, and the button 8e are integrally formed.
　次に、第１実施形態の作用を説明する。 Next, the operation of the first embodiment will be described.
　操作部材８をロックスプリング１２及びフレキシブルホルダー１４の口開き部１４ｃのバネ力に抗して解除方向、つまり、図４から図５に示すように押し込む操作をすることで、操作部材８と共に係止部材１３が移動するとともに、操作部材８の押圧部８ａによってフレキシブルホルダー１４の口開き部１４ｃが開く。これにより、ヘッドレストステー３の周面からフレキシブルホルダー１４の本体１４ａが離間するとともに、係止部材１３がヘッドレストステー３の係合部３ａから離脱する。このため、ヘッドレストステー３の摺動抵抗が無くなる或いは小さくなり、ヘッドレストステー３の上下調整の操作性に優れる。また、操作部材８を押し込む力を無くすことで、フレキシブルホルダー１４の口開き部１４ｃのバネ力により係止部材１３が解除方向と反対方向である停止方向に移動し、フレキシブルホルダー１４の本体１４ａに図９の白矢印とは反対向きの力が働き、本体１４ａがヘッドレストステー３の周面を締め付け、係止部材１３がヘッドレストステー３の係合部３ａに係合する。このため、ヘッドレストステー３の上下動が不可能になると共に部品間の遊びが無くなるので、ガタ音の発生が抑えられる。よって、商品性の優れた乗り物用座席とすることができる。 The operation member 8 is locked together with the operation member 8 by pushing the operation member 8 against the spring force of the lock spring 12 and the opening 14c of the flexible holder 14 in the releasing direction, that is, as shown in FIGS. As the member 13 moves, the opening 14c of the flexible holder 14 is opened by the pressing portion 8a of the operating member 8. Thereby, the main body 14 a of the flexible holder 14 is separated from the peripheral surface of the headrest stay 3, and the locking member 13 is detached from the engaging portion 3 a of the headrest stay 3. For this reason, the sliding resistance of the headrest stay 3 is eliminated or reduced, and the operability of the vertical adjustment of the headrest stay 3 is excellent. Further, by eliminating the force to push the operating member 8, the locking member 13 is moved in the stop direction, which is the direction opposite to the release direction, by the spring force of the opening 14 c of the flexible holder 14, and the main body 14 a of the flexible holder 14 is moved. A force opposite to the white arrow in FIG. 9 acts, the main body 14 a tightens the peripheral surface of the headrest stay 3, and the locking member 13 engages with the engaging portion 3 a of the headrest stay 3. For this reason, since the headrest stay 3 cannot be moved up and down and there is no play between components, the generation of rattling noise can be suppressed. Therefore, it can be set as the vehicle seat excellent in merchantability.
　ホルダー５の操作部材８は、フレキシブルホルダー１４の口開き部１４ｃを押圧可能である。このため、ホルダー５の操作部材８を解除方向に操作するだけで、フレキシブルホルダー１４の口開き部１４ｃを開く方向に移動させる（変形させる）。これにより、フレキシブルホルダー１４の本体１４ａがヘッドレストステー３の周面から確実に離れ、ヘッドレストステー３の摺動抵抗が無くなる或いは小さくなるので、ヘッドレストステー３の上下動の操作性が優れる。 The operating member 8 of the holder 5 can press the opening 14c of the flexible holder 14. For this reason, the opening part 14c of the flexible holder 14 is moved (deformed) only by operating the operating member 8 of the holder 5 in the releasing direction. Thereby, the main body 14a of the flexible holder 14 is reliably separated from the peripheral surface of the headrest stay 3, and the sliding resistance of the headrest stay 3 is eliminated or reduced, so that the operability of the headrest stay 3 in the vertical movement is excellent.
　また、係止部材１３は、操作部材８を介して、フレキシブルホルダー１４の口開き部１４ｃにより、ヘッドレストステー３の係合部３ａに係合する方向に常時付勢されている。このため、ホルダー５の操作部材８を、図５及び図９に示す黒矢印Ｆのように解除方向に操作することで、係止部材１３が係合部３ａから離脱する。また、ホルダー５の操作部材８の解除方向への操作を止めることにより、係止部材１３が係合部３ａに係合する。このようにフレキシブルホルダー１４の本体１４ａを移動させる（変形させる）だけで、本体１４ａがヘッドレストステー３の周面から確実に離れるので、ヘッドレストステー３の摺動抵抗が無くなる或いは小さくなり、ヘッドレストステー３の上下調整の操作性に優れる。ヘッドレストステー３とホルダー６とは元々摺動抵抗がない。よって、ヘッドレストステー３の可動及び固定を簡易としている。 Further, the locking member 13 is always urged through the operation member 8 by the opening portion 14 c of the flexible holder 14 in the direction of engaging with the engaging portion 3 a of the headrest stay 3. Therefore, by operating the operation member 8 of the holder 5 in the release direction as indicated by the black arrow F shown in FIGS. 5 and 9, the locking member 13 is detached from the engaging portion 3a. Further, by stopping the operation of the operating member 8 of the holder 5 in the releasing direction, the locking member 13 is engaged with the engaging portion 3a. Since the main body 14a is surely separated from the peripheral surface of the headrest stay 3 simply by moving (deforming) the main body 14a of the flexible holder 14 in this way, the sliding resistance of the headrest stay 3 is eliminated or reduced. Excellent operability for vertical adjustment. The headrest stay 3 and the holder 6 originally have no sliding resistance. Therefore, the movement and fixation of the headrest stay 3 are simplified.
　また、操作部材８が図４の位置から図５の白抜き矢印のように移動することで、係止部材１３が移動してヘッドレストステー３の係合部３ａから離脱して、ヘッドレスト２がヘッドレストステー３の次の係合部３ａの位置まで上下移動可能となる。 Further, when the operation member 8 moves from the position of FIG. 4 as indicated by the white arrow in FIG. 5, the locking member 13 moves to disengage from the engaging portion 3 a of the headrest stay 3, and the headrest 2 is moved to the headrest. It is possible to move up and down to the position of the next engaging portion 3 a of the stay 3.
　操作部材８のボタン８ｅからの押圧力を解除すると、ロックスプリング１２及びフレキシブルホルダー１４の口開き部１４ｃのバネ力によって、図５、９の黒色矢印Ｆとは反対の方向、つまり図５、９の右方にボタン８ｅが移動する。ボタン８ｅが右方に移動すると、フレキシブルホルダー１４の口開き部１４ｄが閉じ、本体１４ａがヘッドレストステー３の周面に当接し、本体１４ａとヘッドレストステー３の周面との摺動抵抗が高くなる。最終的には、係止部材１３がヘッドレストステー３の係合部３ａに係合して、本体１４ａとヘッドレストステー３の周面との間に遊びが無くなる。これにより、ヘッドレストステー３の上下動が不可能になると共に部品間の遊びが無くなるので、ガタ音の発生が抑えられる。 When the pressing force from the button 8e of the operation member 8 is released, the spring force of the lock spring 12 and the opening 14c of the flexible holder 14 is opposite to the black arrow F in FIGS. The button 8e moves to the right side of. When the button 8e moves to the right, the opening 14d of the flexible holder 14 closes, the main body 14a comes into contact with the peripheral surface of the headrest stay 3, and the sliding resistance between the main body 14a and the peripheral surface of the headrest stay 3 increases. . Eventually, the locking member 13 engages with the engaging portion 3 a of the headrest stay 3, and there is no play between the main body 14 a and the peripheral surface of the headrest stay 3. As a result, the headrest stay 3 cannot be moved up and down and there is no play between components, so that the generation of rattling noise is suppressed.
　以下、本発明の第２実施形態に係るヘッドレスト支持装置及びこれを備えた乗り物用座席を図１０～図１３に基づいて詳細に説明する。第２実施形態でも、自動車に配された座席を説明するが、乗り物は自動車に限定されず、航空機や船舶等であってもよい。第１実施形態と同じ構成の説明は割愛し、同じ符号を用いる。また、図１０～図１３に示す操作部材２１、第１頭部９等を備えるホルダー２０は、図示する形状に限定されず、例えば、第１実施形態のように外形が丸みを帯びるようにしてもよい。また、図１２、１３は、内部構造を示すため、第１頭部９の一部を適宜省略している。 Hereinafter, a headrest support device according to a second embodiment of the present invention and a vehicle seat equipped with the same will be described in detail with reference to FIGS. 10 to 13. In the second embodiment, a seat arranged in an automobile will be described, but the vehicle is not limited to an automobile, and may be an aircraft, a ship, or the like. The description of the same configuration as that of the first embodiment is omitted, and the same reference numerals are used. Further, the holder 20 including the operation member 21, the first head 9 and the like shown in FIGS. 10 to 13 is not limited to the shape shown in the figure, and for example, the outer shape is rounded as in the first embodiment. Also good. 12 and 13 omit the part of the first head 9 as appropriate in order to show the internal structure.
　シートバック１の頂部１ａには、一方のヘッドレストステー３を支持するステーロック部材であるホルダー２０と、他方のヘッドレストステー４を支持するホルダー６とがそれぞれ設けられている。 The top portion 1 a of the seat back 1 is provided with a holder 20 that is a stay lock member that supports one headrest stay 3 and a holder 6 that supports the other headrest stay 4.
　一方のホルダー２０は、操作部材２１と、第１頭部９と、筒部１０と、係止部材２２と、フレキシブルホルダー２３とを備える。 One holder 20 includes an operation member 21, a first head 9, a cylindrical portion 10, a locking member 22, and a flexible holder 23.
　図１１に示すように、筒部１０のフランジ部１０ｄ（図６参照）の上側には、ヘッドレストステー３の長手方向に直交する方向に移動可能な本体２３ａを有するフレキシブルホルダー２３が設けられている。フレキシブルホルダー２３の本体２３ａのヘッドレストステー３の長手方向に直交する方向の一方には、三角状のホルダー部２３ｂが形成されている。ヘッドレストステー３の長手方向に直交する方向の他方には、操作部材２１によって拡開可能な口開き部２３ｃが形成されている。 As shown in FIG. 11, a flexible holder 23 having a main body 23 a that is movable in a direction orthogonal to the longitudinal direction of the headrest stay 3 is provided on the upper side of the flange portion 10 d (see FIG. 6) of the cylindrical portion 10. . A triangular holder portion 23b is formed on one side of the main body 23a of the flexible holder 23 in a direction orthogonal to the longitudinal direction of the headrest stay 3. On the other side in the direction orthogonal to the longitudinal direction of the headrest stay 3, an opening portion 23 c that can be expanded by the operation member 21 is formed.
　フレキシブルホルダー２３は、バネ状鋼板により本体２３ａとホルダー部２３ｂと口開き部２３ｃとが一体に形成されている。本体２３ａは、ヘッドレストステー３がスムーズに上下動可能な円弧状をなし且つ筒部１０のフランジ部１０ｄと第１頭部９との間に配置されている。ホルダー部２３ｂは、上から見て三角状に形成されている。操作部材２１の凹部２１ｄには、ホルダー部２３ｂが係合している。 The flexible holder 23 has a main body 23a, a holder portion 23b, and a mouth opening portion 23c that are integrally formed of a spring-shaped steel plate. The main body 23 a has an arc shape that allows the headrest stay 3 to smoothly move up and down, and is disposed between the flange portion 10 d of the cylindrical portion 10 and the first head portion 9. The holder portion 23b is formed in a triangular shape when viewed from above. The holder portion 23 b is engaged with the concave portion 21 d of the operation member 21.
　口開き部２３ｃは、上方から見てＶ字状をなす。フレキシブルホルダー２３は、バネ状鋼板と説明したが、合成樹脂よりなっていても良い。要は、本体２３ａ及び口開き部２３ｃがスプリング性能を有していればどのような材料でも良い。 The mouth opening 23c is V-shaped when viewed from above. The flexible holder 23 has been described as a spring-shaped steel plate, but may be made of synthetic resin. In short, any material may be used as long as the main body 23a and the opening portion 23c have spring performance.
　口開き部２３ｃに操作部材２１の押圧部２１ａによる押圧力がかかっていない状態（操作部材２１が解除方向に押し込み操作されていない状態）では、口開き部２３ｃが閉じた状態となることで本体２３ａがヘッドレストステー３の周面に当接（摺動抵抗をもって圧接）している。一方、口開き部２３ｃに操作部材２１の押圧部２１ａによる押圧力がかかっている状態（操作部材２１が解除方向に押し込み操作されている状態）では、口開き部２３ｃが操作部材２１の押圧部２１ａにより口開き状に拡開して離間する（変形する）ことで、本体２３ａがヘッドレストステー３の周面より離れ、本体２３ａによる圧接が解除される（或いは、圧接力が小さくなる）。同時に、操作部材２１を解除方向に押し込み操作することで、係止部材２２が係合部３ａから離脱する。これにより、ヘッドレストステー３がフレキシブルホルダー２３と係止部材２２との両方から開放されてスムーズに上下動可能となる。上記のように、口開き部２３ｃは、解除方向に押し込み操作された操作部材２１の押圧部２１ａによる押圧力により、本体２３ａがヘッドレストステー３の周面に当接する形状と本体２３ａがヘッドレストステー３の周面から離脱する形状との間で変形可能となっている。 When the pressing force by the pressing portion 21a of the operating member 21 is not applied to the opening portion 23c (the operating member 21 is not pushed in the releasing direction), the opening portion 23c is in a closed state. 23a is in contact with the peripheral surface of the headrest stay 3 (pressure contact with sliding resistance). On the other hand, when the pressing force by the pressing portion 21a of the operating member 21 is applied to the opening portion 23c (the operating member 21 is pushed in the release direction), the opening portion 23c is the pressing portion of the operating member 21. The main body 23a is separated from the peripheral surface of the headrest stay 3 by being expanded and spaced apart (deformed) by the opening 21a, and the press contact by the main body 23a is released (or the press contact force is reduced). At the same time, the locking member 22 is disengaged from the engaging portion 3a by pushing the operating member 21 in the releasing direction. Thereby, the headrest stay 3 is released from both the flexible holder 23 and the locking member 22 and can be moved up and down smoothly. As described above, the opening portion 23c has a shape in which the main body 23a abuts on the peripheral surface of the headrest stay 3 and the main body 23a is the headrest stay 3 due to the pressing force of the pressing portion 21a of the operation member 21 pushed in the release direction. It is possible to deform between the shape that is detached from the peripheral surface.
　係止部材２２は、短冊状に形成され、操作部材２１に支持されている。操作部材２１は、上から見て三角状に形成された押圧部２１ａと、押圧部２１ａと固定された或いは一体に形成された本体２１ｂと、操作部材２１を押圧するボタン２１ｅと、押圧部２１ａのボタン２１ｅの反対側に形成された板スプリング２１ｃとを備える。板スプリング２１ｃにより、ヘッドレストステー３の係合部３ａに本体２１ｂを介して係止部材２２が係合方向に付勢されている。 The locking member 22 is formed in a strip shape and is supported by the operation member 21. The operating member 21 includes a pressing portion 21a formed in a triangular shape when viewed from above, a main body 21b fixed to or integrally formed with the pressing portion 21a, a button 21e for pressing the operating member 21, and a pressing portion 21a. And a leaf spring 21c formed on the opposite side of the button 21e. The locking member 22 is urged in the engaging direction by the leaf spring 21c to the engaging portion 3a of the headrest stay 3 via the main body 21b.
　操作部材２１は、第１頭部９の開口９ｂから突出するように押圧されている。操作部材２１のボタン２１ｅを、図１３の黒矢印Ｆに示すように押圧することで、操作部材２１を押圧可能となっている。 The operating member 21 is pressed so as to protrude from the opening 9b of the first head 9. The operation member 21 can be pressed by pressing the button 21e of the operation member 21 as indicated by a black arrow F in FIG.
　操作部材２１は、ヘッドレストステー３が貫通可能であると共に操作部材２１の移動代分ヘッドレストステー３から逃げた貫通穴２１ｄを備える。 The operation member 21 includes a through hole 21d through which the headrest stay 3 can be penetrated and escaped from the headrest stay 3 by the amount of movement of the operation member 21.
　次に、第２実施形態の作用を説明する。 Next, the operation of the second embodiment will be described.
　板スプリング２１ｃ及びフレキシブルホルダー２３の口開き部２３ｃのバネ力に抗して操作部材２１を、図１３に示す黒矢印Ｆのようにボタン２１ｅを解除方向に操作することで、操作部材２１の押圧部２１ａがフレキシブルホルダー２３の口開き部２３ｃを開くと共に係止部材２２が解除方向に移動する。これにより、フレキシブルホルダー２３の本体２３ａが、ヘッドレストステー３の周面から離れ、フレキシブルホルダー２３の本体２３ａとヘッドレストステー３との間に遊びができて摺動抵抗がなくなる或いは小さくなる。これにより、ヘッドレストステー３の摺動抵抗が低く、或いは無くなり、操作力が軽くなって、ヘッドレストステー３の上下動が可能になる。このようにフレキシブルホルダー２３の本体２３ａを移動させる（変形させる）だけで、本体２３ａがヘッドレストステー３の周面から確実に離れるので、ヘッドレストステー３の上下調整の操作性に優れる。ヘッドレストステー３とホルダー６とは元々摺動抵抗がない。 By pressing the operating member 21 against the spring force of the leaf spring 21c and the opening 23c of the flexible holder 23, and operating the button 21e in the release direction as indicated by the black arrow F shown in FIG. The portion 21a opens the opening 23c of the flexible holder 23 and the locking member 22 moves in the release direction. As a result, the main body 23a of the flexible holder 23 is separated from the peripheral surface of the headrest stay 3, and a play can be made between the main body 23a of the flexible holder 23 and the headrest stay 3 to eliminate or reduce sliding resistance. Thereby, the sliding resistance of the headrest stay 3 is low or eliminated, the operation force is lightened, and the headrest stay 3 can be moved up and down. As described above, the main body 23a is surely separated from the peripheral surface of the headrest stay 3 only by moving (deforming) the main body 23a of the flexible holder 23, so that the operability of the vertical adjustment of the headrest stay 3 is excellent. The headrest stay 3 and the holder 6 originally have no sliding resistance.
　また、操作部材２１が図１３の位置から図１２の白抜き矢印のように移動することで、係止部材２２が移動してヘッドレストステー３の係合部３ａから離脱して、ヘッドレスト２がヘッドレストステー３の次の係合部３ａの位置まで上下移動可能となる。 Further, when the operating member 21 moves from the position shown in FIG. 13 as indicated by the white arrow in FIG. 12, the locking member 22 moves to disengage from the engaging portion 3a of the headrest stay 3, and the headrest 2 is moved to the headrest. It is possible to move up and down to the position of the next engaging portion 3 a of the stay 3.
　操作部材２１のボタン２１ｅからの押圧力を解除すると、板スプリング２１ｃ及びフレキシブルホルダー２３の口開き部２３ｃのバネ力によって、図１３の黒色矢印Ｆとは反対の方向、つまり図１２の白矢印の方向にボタン２１ｅが移動する。ボタン２１ｅが白矢印の方向に移動すると、フレキシブルホルダー２３の口開き部２３ｄが閉じ、本体２３ａがヘッドレストステー３の周面に当接し、本体２３ａとヘッドレストステー３の周面との摺動抵抗が高くなる。最終的には、係止部材２２がヘッドレストステー３の係合部３ａに係合して、本体２３ａとヘッドレストステー３の周面との間に遊びが無くなる。これにより、ヘッドレストステー３の上下動が不可能になると共に部品間の遊びが無くなるので、ガタ音の発生が抑えられる。 When the pressing force from the button 21e of the operation member 21 is released, the spring force of the leaf spring 21c and the opening 23c of the flexible holder 23 is opposite to the black arrow F in FIG. 13, that is, the white arrow in FIG. The button 21e moves in the direction. When the button 21e moves in the direction of the white arrow, the opening portion 23d of the flexible holder 23 is closed, the main body 23a comes into contact with the peripheral surface of the headrest stay 3, and the sliding resistance between the main body 23a and the peripheral surface of the headrest stay 3 is reduced. Get higher. Eventually, the locking member 22 engages with the engaging portion 3a of the headrest stay 3, and there is no play between the main body 23a and the peripheral surface of the headrest stay 3. As a result, the headrest stay 3 cannot be moved up and down and there is no play between components, so that the generation of rattling noise is suppressed.
　操作部材２１の押圧部２１ａと本体２１ｂとは、互いに固定或いは一体に形成されているものとして説明したが、これに限定されない。例えば、押圧部２１ａと本体２１ｂとは、相対移動可能に設けられていてもよい。この場合、図１３に示す黒矢印Ｆのようにボタン２１ｅを解除方向に操作することで、操作部材２１の押圧部２１ａがフレキシブルホルダー２３の口開き部２３ｃを開きながらフレキシブルホルダー２３を左側（解除方向）に移動させる。フレキシブルホルダー２３は、押圧部２１ａからの押圧力を受けて、ホルダー部２３ｂで操作部材２１の本体２１ｂを左側に移動させる。 Although the pressing portion 21a and the main body 21b of the operation member 21 have been described as being fixed or integrally formed with each other, the present invention is not limited to this. For example, the pressing part 21a and the main body 21b may be provided so as to be relatively movable. In this case, by operating the button 21e in the release direction as indicated by the black arrow F shown in FIG. 13, the pressing portion 21a of the operation member 21 opens the opening portion 23c of the flexible holder 23 while moving the flexible holder 23 to the left (release). Direction). The flexible holder 23 receives the pressing force from the pressing portion 21a, and moves the main body 21b of the operation member 21 to the left side by the holder portion 23b.
　以上、本発明の実施形態について説明したが、本発明は上記実施形態には限定されず、種々の変形が可能である。 As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

Claims (4)

  1. 　乗り物用座席のヘッドレストの下端部より垂下して設けられ、前記乗り物用座席のシートバックのフレームに支持されたホルダーブラケットに係合して支持されるヘッドレストステーであって、前記ヘッドレストステーの周面に前記ヘッドレストステーの長手方向に直交する方向に溝状に形成された係合部を有するヘッドレストステーと、
    　挿入された前記ヘッドレストステーを支持するホルダーと、
    を備え、
    　　前記ホルダーは、
    　　　前記ヘッドレストステーの前記係合部に前記周方向から係合離脱可能な係止部材であって、前記ヘッドレストステーの前記係合部との係合により適宜の上下位置で前記ヘッドレストステーの上下移動をロック可能な係止部材と、
    　　　前記ヘッドレストステーの前記周面に周方向から当接離間可能なフレキシブルホルダーと、
    　　　前記フレキシブルホルダーを前記ヘッドレストステーの前記周面から離間させることが可能であり、前記係止部材を前記係合部から離脱する方向に移動可能な操作部材と、
    を含む
    ヘッドレスト支持装置。     A headrest stay that is suspended from a lower end portion of a headrest of a vehicle seat and is supported by being engaged with a holder bracket supported by a frame of a seatback of the vehicle seat, the peripheral surface of the headrest stay A headrest stay having an engaging portion formed in a groove shape in a direction perpendicular to the longitudinal direction of the headrest stay;
    A holder for supporting the inserted headrest stay;
    With
    The holder is
    A locking member that can be engaged with and disengaged from the circumferential direction in the engagement portion of the headrest stay, and the headrest stay can be moved up and down at an appropriate vertical position by engagement with the engagement portion of the headrest stay. A lockable locking member;
    A flexible holder capable of contacting and separating from the circumferential direction of the peripheral surface of the headrest stay;
    An operating member capable of moving the flexible holder away from the peripheral surface of the headrest stay and movable in a direction in which the locking member is detached from the engaging portion;
    Including headrest support device.
  2. 　前記フレキシブルホルダーは、
    　　前記ヘッドレストステーの前記周面に前記周方向から当接離間可能な本体と、
    　　前記本体が前記ヘッドレストステーの前記周面に当接する第１の形状と前記本体が前記ヘッドレストステーの前記周面から離間する第２の形状との間で変形可能な口開き部と、
    を含み、　
    　前記操作部材は、前記口開き部を押圧により前記第２の形状に変形させる
    請求項１に記載のヘッドレスト支持装置。     The flexible holder is
    A main body capable of contacting and separating from the circumferential direction on the peripheral surface of the headrest stay;
    A mouth opening portion that is deformable between a first shape in which the main body abuts on the peripheral surface of the headrest stay and a second shape in which the main body is separated from the peripheral surface of the headrest stay;
    Including
    The headrest support device according to claim 1, wherein the operation member deforms the opening portion into the second shape by pressing.
  3. 　前記係止部材は、前記ヘッドレストステーの前記係合部に係合する方向に常時付勢された
    請求項１又は請求項２に記載のヘッドレスト支持装置。     The headrest support device according to claim 1, wherein the locking member is constantly urged in a direction to engage with the engaging portion of the headrest stay.
  4. 　フレームを有するシートバックと、
    　前記フレームに支持されたホルダーブラケットと、
    　ヘッドレストと、
    　請求項１乃至３のいずれか１項に記載の前記ヘッドレスト支持装置と、
    を備えた乗り物用座席。     A seat back having a frame;
    A holder bracket supported by the frame;
    Headrest,
    The headrest support device according to any one of claims 1 to 3,
    Vehicle seat with
PCT/JP2014/061734 2014-04-25 2014-04-25 Headrest support device and vehicle seat equipped with same WO2015162785A1 (en)

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JP2013147101A (en) * 2012-01-18 2013-08-01 Toyota Boshoku Corp Lock mechanism for headrest of vehicle seat

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