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WO2014069067A1 - Dispositif d'inclinaison pour appuie-tête, et appuie-tête - Google Patents

Dispositif d'inclinaison pour appuie-tête, et appuie-tête Download PDF

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Publication number
WO2014069067A1
WO2014069067A1 PCT/JP2013/071199 JP2013071199W WO2014069067A1 WO 2014069067 A1 WO2014069067 A1 WO 2014069067A1 JP 2013071199 W JP2013071199 W JP 2013071199W WO 2014069067 A1 WO2014069067 A1 WO 2014069067A1
Authority
WO
WIPO (PCT)
Prior art keywords
headrest
lock
rotating frame
unlocking
lock plate
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/JP2013/071199
Other languages
English (en)
Japanese (ja)
Inventor
孟士 山根
小林　徳三
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.)
Bizen Hatsujoh Co Ltd
Original Assignee
Bizen Hatsujoh 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 Bizen Hatsujoh Co Ltd filed Critical Bizen Hatsujoh Co Ltd
Priority to JP2013554511A priority Critical patent/JP5513693B1/ja
Publication of WO2014069067A1 publication Critical patent/WO2014069067A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • B60N2/856—Tiltable movable to an inoperative or stowed position

Definitions

  • the present invention relates to a headrest lodging device for rotating a headrest from a use position where the headrest is erected to a storage position where the headrest is tilted forward, and a headrest using the device.
  • These headrest lodging devices usually have a horizontal shaft portion of a headrest stay that includes a pair of left and right vertical axis portions and a horizontal axis portion that connects upper ends of the vertical axis portions (the lower ends of Patent Document 2 are lower ends). It is assembled against. For this reason, when the shape of the headrest stay (for example, the arrangement pitch of the vertical axis portion) of the headrest stay is changed, it may be necessary to review the design of the headrest lodging device accordingly. It was not necessarily easy to adopt in all types of vehicle seats. In addition, although the headrest lodging device is required to be easy to operate and to prevent headrest rattling caused by the rotation mechanism, it can always satisfy these requirements. It was not.
  • the headrest lodging device of Patent Document 4 is easy to operate and does not easily rattle.
  • the backward rotation of the headrest at the use position is restricted by the contact portion 10 of the rotation restriction bracket 3 abutting against the inner surface of the base 6 (FIG. 2 of the same document).
  • the strength of the base 6 is formed by, for example, forming the base 6 from a steel plate (Claim 6 of the same document). It was necessary to secure enough. Therefore, there is still room for improvement in terms of reducing the weight and cost of the headrest.
  • the present invention has been made to solve the above-described problems, and provides a headrest lodging device that can easily cope with a change in the shape of a headrest stay. It is also an object of the present invention to provide a headrest inclining device that is not only easy to operate but also less susceptible to rattling. Furthermore, it is also an object of the present invention to provide a headrest lodging device that can promote weight reduction and cost reduction. Furthermore, it is an object of the present invention to provide a headrest using the headrest lodging device.
  • a headrest fall device that rotates the headrest from a standing position to a stowed storage position, A stay connecting member that connects upper portions of the pair of left and right headrest stays; A fixing member fixed to the stay connecting member; A rotating frame whose lower end is pivotally supported by a fixed member; A rotating frame biasing spring for biasing the rotating frame; A lock plate whose front end is pivotally supported by the upper end of the rotating frame; A lock plate biasing spring that biases the rear end of the lock plate toward the rotating frame; It has a group of parts composed of unlocking means, A lock claw is provided on the lower surface of the rear end of the lock plate, The rear surface of the middle part of the rotating frame is the first butting part, The front surface of the fixing member is the first butted portion, A lock fitting portion for fitting a lock claw is provided on the rear end side of the upper portion of the fixing member, When the lock claw and the lock fitting part are unlocked by operating the lock release means, the headrest can be moved forward from the use position to the storage position,
  • axial support refers not only to a case in which an object is rotatably supported using a horizontal axis (axis arranged parallel to the rotation center line), but also to a vertical axis (rotation center). This includes the case where the object is supported so as to be rotatable using an axis arranged non-parallel to the line.
  • the headrest lodging device of the present invention can easily cope with a change in the length of the stay connecting member even if the arrangement pitch of the longitudinal axis of the headrest stay is changed. It has become.
  • the pivot frame is not pivotally supported directly on the headrest stay, but is pivotally supported via a fixing member, the relative position of the pivot axis of the pivot frame with respect to the headrest stay can be easily changed. be able to. For this reason, it is easy to bring the rotation axis of the rotation frame closer to the headrest stay, and as a result, the thickness of the headrest in the front-rear direction is reduced to ensure a wide rear view when the headrest is in the storage position. You can also.
  • these members may be formed of a strong material (metal). Lightweight and low-cost materials such as resin can be used for the cover and rear cover. Further, since the headrest is firmly supported by the stay connecting member and the fixing member in both the use position and the storage position, rattling is less likely to occur.
  • the specific mode of the unlocking means is not particularly limited, but the following three modes are preferable examples.
  • the first aspect is Further comprising a front cover and a rear cover that cover the front and rear of the component group and rotate together with the rotation frame
  • the unlocking means is a lock release button inserted into a cylindrical guide hole penetrating the rear cover back and forth, An unlocking action piece is provided at the top of the lock plate, When the lock release button is pushed forward in the locked state, the front end of the release button presses the lock release action piece forward, so that the lock plate is rotated in the lock release direction.
  • the unlocking means is an unlocking lever supported in a state in which it can slide laterally at the top of the rotating frame, A lock release lever action surface is provided at the bottom of the lock plate, When the lock release lever is pushed into the rotating frame in the locked state, the lock release cam provided on the lock release lever pushes up the action surface of the lock release lever, thereby rotating the lock plate in the lock release direction. It is what I did.
  • the headrest lodging device is a lock inserted into the cylindrical guide hole only by pressing the rear cover even when a large-sized headrest hits the back of the headrest.
  • the release button is not pushed in.
  • the lock release button has a size smaller than that of the cylindrical guide hole, such as a finger, and cannot be pushed in unless it is locally pressed, so that the lock is not released.
  • the headrest device according to the second aspect is not unlocked unless the lock release lever is pushed in the lateral direction.
  • the headrest lodging device of the first or second aspect is easy to operate.
  • the third aspect is The angle formed by the contact surface of the lock fitting portion with the lock claw at the imaginary line connecting the center of the rotation axis of the lock plate and the upper end of the lock fitting portion is 90 to 100 °. Realized by When the headrest is pushed forward with a force more than a predetermined force when in the locked state, the lock claw that has been stationary due to frictional force against the lock fitting part starts to slide, so that the lock plate rotates in the unlocking direction. It is a thing.
  • the fall device for headrests according to the third aspect is designed to be able to be moved forward only by grasping the headrest with a hand and applying a predetermined force or more, and pursuing the ease of operation thereof. .
  • the device for a headrest of the third aspect can be suitably employed for the headrest of the rearmost seat.
  • the fall device for a headrest fixes the headrest stay to the stay connecting member, covers the outer skin of the front cover and the rear cover, and injects foamed resin into the inside of the headrest, thereby performing the headrest integral foaming.
  • a headrest lodging device that can easily cope with a change in the shape of the headrest stay.
  • a headrest lodging device that is not only easy to operate, but also less susceptible to rattling.
  • a headrest lodging device that can promote weight reduction and cost reduction.
  • the headrest lodging device of the present invention will be described more specifically with reference to the drawings.
  • the headrest lodging device of the present invention will be described by taking three embodiments from the first embodiment to the third embodiment as examples, but the technical scope of the present invention is limited to these embodiments. Without departing from the scope of the invention, modifications can be made as appropriate without departing from the spirit of the invention.
  • FIG. 1 is a perspective view showing a state in which the headrest lodging apparatus according to the first embodiment of the present invention is incorporated in the headrest, with the skin 100 broken.
  • FIG. 2 is a perspective view illustrating a state in which the headrest lodging apparatus according to the first embodiment of the present invention is disassembled into various parts.
  • FIG. 3 is a cross-sectional view showing a state in which the headrest incorporating the headrest lodging apparatus according to the first embodiment of the present invention is cut in a vertical plane perpendicular to the left-right direction.
  • FIG. 1 is a perspective view showing a state in which the headrest lodging apparatus according to the first embodiment of the present invention is incorporated in the headrest, with the skin 100 broken.
  • FIG. 2 is a perspective view illustrating a state in which the headrest lodging apparatus according to the first embodiment of the present invention is disassembled into various parts.
  • FIG. 3 is a cross-sectional view showing a state in which the headrest incorporating the headrest lodging apparatus according to the first embodiment
  • FIG. 4 shows a state in which the unlocking means 70 is operated when the headrest incorporating the headrest lodging device according to the first embodiment of the present invention is in the use position, and is cut along a vertical plane perpendicular to the left-right direction. It is sectional drawing.
  • FIG. 5 is a cross-sectional view showing a state in which the headrest incorporating the headrest lodging apparatus according to the first embodiment of the present invention is cut near a vertical position perpendicular to the left-right direction.
  • the headrest fall device of the first embodiment is configured to rotate from the use position where the headrest is erected as shown in FIG. 3 to the retracted storage position as shown in FIG.
  • the headrest inclining device includes a stay connecting member 10, a fixing member 20, a rotating frame 30, a rotating frame biasing spring 40, a lock plate 50, and a lock plate biasing spring. 60, an unlocking means 70, and a front cover 80 and a rear cover 81 which cover the front and rear of these parts and rotate together with the rotating frame.
  • the stay connecting member 10 is a channel-shaped metal member, and the left and right end portions thereof are fixed to the upper portion of the pair of left and right headrest stays 200 bent to the front side.
  • the upper part is connected.
  • the lower surface of the stay connecting member 10 is a second butted portion 11.
  • the fixing member 20 is a U-shaped metal member in side view, and is fixed by caulking to an intermediate portion of the stay connecting member 10.
  • the front surface of the fixing member 20 is a first abutted portion 21, and a pair of left and right lock fitting portions 22 are provided on the upper rear end side of the fixing member 20.
  • the lock fitting portion 22 is a place for fitting a lock claw 51 described later at the use position shown in FIG.
  • the rotating frame 30 is a metal member having a pair of left and right side walls that are U-shaped in a side view, and an intermediate rear surface of the pair of left and right side walls serves as a first abutting portion 31.
  • the lower rear surface of the side wall is a second butting portion 34.
  • a frame body 33 is fixed to the front surface of the rotating frame 30.
  • the lower end of the rotating frame 30 is pivotally supported by the lower part of the fixing member 20 via the rotating frame rotating shaft 32.
  • the rotating frame urging spring 40 (FIG. 3) is for urging the rotating frame 30 in the forward direction.
  • the rotating frame biasing spring 40 is a coil spring that is externally fitted to the rotating frame rotating shaft 32.
  • the lock plate 50 is a channel-shaped metal member having a pair of left and right side walls, and a lock claw 51 is provided on the lower surface side of the rear end of the pair of left and right side walls. have.
  • An unlocking action piece 53 is provided upward at the upper front end of the lock plate 50.
  • the front end of the lock plate 50 is pivotally supported on the upper end of the rotation frame 30 via the lock plate rotation shaft 52.
  • the lock plate urging spring 60 is for urging the lock claw 51 provided at the rear end of the lock plate 50 toward the lock fitting portion 22 in the use position shown in FIG. . Thereby, when the headrest is in the use position, the fitting between the lock claw 21 and the lock fitting portion 22 is prevented from being unexpectedly removed.
  • the lock plate biasing spring 60 is a coil spring that is externally fitted to the lock plate rotating shaft 52.
  • the lock release means 70 is for releasing the fitting state (locked state) between the lock claw 51 and the lock fitting portion 22 that are in the fitted state at the use position.
  • the lock release means 70 is a lock release button 71 inserted into a cylindrical guide hole 81a penetrating the upper part of the rear cover 81 in the front-rear direction.
  • FIG. 3 when the lock release button 71 is pushed forward (in the direction of arrow A) when the headrest is in the use position, the front end of the lock release button 71 is unlocked as shown in FIG. 53 is pushed forward, the lock plate 50 is rotated in the unlocking direction, and the lock claw 51 is detached from the lock fitting portion 22 to be unlocked.
  • the pushed-in lock release button 71 is returned to the initial position by a coil spring (not shown) provided in the cylindrical guide hole 81a.
  • the unlock button 71 When not pushed forward, the unlock button 71 does not protrude rearward from the cylindrical guide hole 81a, and the cylindrical guide hole 81a is provided with a diameter that allows the thumb of a hand to enter. . On the rear surface of the skin 100, there is provided a recess 101 indicating where the unlock button 71 is. For this reason, the headrest has a structure that is not pushed forward unless the depression 101 is locally pressed with a small area such as a finger.
  • the front cover 80 and the rear cover 81 are made of resin injection-molded products and have a structure that can be divided into front and rear.
  • Each group of parts constituting the headrest lodging device is covered with the front cover 80 and the rear cover 81.
  • the headrest lodging apparatus according to the first embodiment is covered with the skin 100 and then foamed with the skin by injecting a foamed resin into a space between the skin 100 and the front cover 80 and the rear cover 81.
  • the headrest fall device of the first embodiment is shown in FIG. 5 from the use position shown in FIG. It is possible to move forward to the storage position.
  • the second abutting portion 32 of the rotating frame 30 abuts against the second abutted portion 11 of the stay connecting member 10 and the headrest cannot fall down any further.
  • the headrest when the headrest is raised from the storage position, the headrest returns to the use position.
  • the first abutting portion 31 of the rotating frame 30 and the first abutted portion 21 of the fixing member 20 come into contact with each other, and the headrest cannot be rotated further rearward. At this time, the lock claw 51 and the lock fitting portion 22 are fitted to be in a locked state.
  • the rotation frame rotation shaft 32 is located away from the vertical column portion of the headrest stay 200, the thickness of the headrest in the front-rear direction increases, and the headrest in the storage position may block the rear view.
  • the place where the rotation frame rotation shaft 32 is provided is not affected by the form of the headrest stay 200, and it is relatively simple only by changing the design of the fixing member 20. It can be changed freely. Therefore, it is easy to provide the rotation frame rotation shaft 32 at a location near the vertical column portion of the headrest stay 200, and the headrest can be thinned to ensure a wide rear view at the storage position.
  • FIG. 6 is a cross-sectional view showing a state in which the periphery of the unlocking means 70 in the headrest lodging apparatus according to the second embodiment of the present invention is enlarged and cut along a vertical plane perpendicular to the front-rear direction.
  • the headrest lodging apparatus is configured such that the lock release means 70 is a lock release lever 72 that is supported in a slidable state on the upper part of the rotating frame 30. .
  • the lock release lever 72 is provided with a lock release cam 72a.
  • a lock release lever operating surface 54 is provided at the lower portion of the lock plate 50. Therefore, when the lock claw 51 (see FIG. 3) and the lock fitting piece 22 (see FIG. 3) are in the locked state, the lock release lever 72 is pushed in the direction of arrow B with respect to the rotating frame 30. Then, the lock release cam 72a pushes up the lock release lever action surface 54, whereby the lock plate 50 is rotated in the lock release direction.
  • configurations that are not particularly mentioned can employ the same configuration as the headrest lodging device of the first embodiment.
  • FIG. 7 is a cross-sectional view showing a state in which the periphery of the lock plate 50 in the headrest lodging apparatus according to the third embodiment of the present invention is enlarged and cut along a vertical plane perpendicular to the front-rear direction.
  • the headrest lodging device is configured so that the unlocking means 70 is connected to a virtual line PQ that connects the center P of the lock plate rotation shaft 52 and the upper end Q of the lock fitting portion 22.
  • the lock claw 51 see FIG. 3
  • the lock fitting piece 22 see FIG.
  • FIG. 8 is sectional drawing which showed the state which cut
  • FIG. 9 shows a state in which the unlocking means 70 is operated on a vertical plane perpendicular to the left-right direction when the headrest incorporating the headrest lodging device of the fourth embodiment of the present invention is in the use position. It is sectional drawing.
  • FIG. 10 is a cross-sectional view showing a state in which the headrest incorporating the headrest lodging device according to the fourth embodiment of the present invention is cut in a vertical plane perpendicular to the left-right direction.
  • the headrest inclining device of the fourth embodiment is configured such that the rotating frame biasing spring 40 is a coil spring that connects the stay connecting member 10 and the rotating frame 30.
  • the rotating frame biasing spring 40 is a coil spring that connects the stay connecting member 10 and the rotating frame 30.
  • the rotating frame biasing spring 40 is a coil spring that connects the stay connecting member 10 and the rotating frame 30.
  • the unlocking action piece 53 is provided in a form extending rearward from the rear portion of the lock plate 50, and the unlocking means 70 is constituted by the unlocking rotation cam 73. ing.
  • One end of the unlocking rotation cam 73 is pivotally supported so as to be rotatable with respect to the stay connecting member 10 or the fixing member 20.
  • the unlocking cam 73 is rotated by operating an operation unit (not shown)
  • the unlocking action piece 53 is pushed up by the unlocking cam 73 and the lock plate 50 is rotated in the unlocking direction.
  • configurations that are not particularly mentioned can employ the same configurations as those of the fall device for headrests of the first embodiment.

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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

　L'invention concerne un dispositif d'inclinaison pour appuie-têtes qui est facile à adapter, même lorsque la forme d'une armature d'appuie-tête est modifiée. Le dispositif d'inclinaison pour appuie-têtes comprend: un élément (10) de liaison d'armature; un élément fixe (20) fixé à l'élément (10) de liaison d'armature; un bâti pivotant (30) soutenu axialement par l'élément fixe (20); un ressort (40) de sollicitation du bâti pivotant; une plaque (50) de verrou soutenue axialement par le bâti pivotant (30); un ressort (60) de sollicitation de la plaque de verrou; et un moyen (70) de libération du verrou. Un crochet (51) de verrou est réalisé du côté de la surface d'extrémité arrière inférieure de la plaque (50) de verrou. La surface arrière centrale du bâti pivotant (30) fait fonction de première partie (31) d'appui, et la surface avant de l'élément fixe (20) fait fonction de première partie (21) en appui. Une partie (22) d'interaction de verrou destinée à interagir avec le crochet (51) de verrou est réalisée du côté de l'extrémité arrière de la partie supérieure de l'élément fixe (20). Lorsque le moyen (70) de libération du verrou est actionné pour relâcher l'état verrouillé entre le crochet (51) de verrou et la partie (22) d'interaction de verrou, l'appuie-tête peut être incliné vers l'avant d'une position d'utilisation à une position d'escamotage.
PCT/JP2013/071199 2012-11-02 2013-08-06 Dispositif d'inclinaison pour appuie-tête, et appuie-tête Ceased WO2014069067A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013554511A JP5513693B1 (ja) 2012-11-02 2013-08-06 ヘッドレスト用倒伏装置及びヘッドレスト

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012243005 2012-11-02
JP2012-243005 2012-11-02

Publications (1)

Publication Number Publication Date
WO2014069067A1 true WO2014069067A1 (fr) 2014-05-08

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PCT/JP2013/071199 Ceased WO2014069067A1 (fr) 2012-11-02 2013-08-06 Dispositif d'inclinaison pour appuie-tête, et appuie-tête

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JP (1) JP5513693B1 (fr)
WO (1) WO2014069067A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016155532A (ja) * 2015-02-26 2016-09-01 日本発條株式会社 ヘッドレスト装置
JP2018103701A (ja) * 2016-12-26 2018-07-05 備前発条株式会社 ヘッドレスト

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5976190B1 (ja) * 2015-12-09 2016-08-23 備前発条株式会社 ヘッドレスト
JP6012840B1 (ja) 2015-12-24 2016-10-25 備前発条株式会社 ヘッドレスト

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192852U (fr) * 1987-12-12 1989-06-19
EP1508470A2 (fr) * 2003-08-22 2005-02-23 KENDRION RSL GmbH & Co.KG Appui-tête pour véhicules
JP2009022481A (ja) * 2007-07-19 2009-02-05 Bizen Hatsujo Kk ヘッドレスト
JP2011510864A (ja) * 2008-01-30 2011-04-07 ウーボ・テク・コーポレイション・リミテッド 自動車用ヘッドレスト（Ａｈｅａｄｒｅｓｔｆｏｒｃａｒｓ）

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192852U (fr) * 1987-12-12 1989-06-19
EP1508470A2 (fr) * 2003-08-22 2005-02-23 KENDRION RSL GmbH & Co.KG Appui-tête pour véhicules
JP2009022481A (ja) * 2007-07-19 2009-02-05 Bizen Hatsujo Kk ヘッドレスト
JP2011510864A (ja) * 2008-01-30 2011-04-07 ウーボ・テク・コーポレイション・リミテッド 自動車用ヘッドレスト（Ａｈｅａｄｒｅｓｔｆｏｒｃａｒｓ）

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016155532A (ja) * 2015-02-26 2016-09-01 日本発條株式会社 ヘッドレスト装置
JP2018103701A (ja) * 2016-12-26 2018-07-05 備前発条株式会社 ヘッドレスト

Also Published As

Publication number Publication date
JP5513693B1 (ja) 2014-06-04
JPWO2014069067A1 (ja) 2016-09-08

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