WO2006112486A1 - Système de blocage de la hauteur pour siège automobile - Google Patents

Système de blocage de la hauteur pour siège automobile Download PDF

Info

Publication number
WO2006112486A1
WO2006112486A1 PCT/JP2006/308245 JP2006308245W WO2006112486A1 WO 2006112486 A1 WO2006112486 A1 WO 2006112486A1 JP 2006308245 W JP2006308245 W JP 2006308245W WO 2006112486 A1 WO2006112486 A1 WO 2006112486A1
Authority
WO
WIPO (PCT)
Prior art keywords
lock
vehicle seat
gear
plate
height
Prior art date
Application number
PCT/JP2006/308245
Other languages
English (en)
Japanese (ja)
Inventor
Eiji Masutani
Original Assignee
Ts Tech Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ts Tech Co., Ltd. filed Critical Ts Tech Co., Ltd.
Publication of WO2006112486A1 publication Critical patent/WO2006112486A1/fr

Links

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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/165—Gear wheel driven mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161—Rods
    • B60N2/1615—Parallelogram-like structure

Definitions

  • the present invention relates to a height lock device for a vehicle seat.
  • a conventional vehicle seat includes a seat belt mechanism that protects a seated person when a strong external force is applied to the seated person due to a vehicle collision or the like.
  • the seat belt mechanism supports a seated person against a strong external force, the seat belt mechanism applies a strong upward force to the vehicle seat.
  • the vehicle seat is provided with a height lock mechanism that prevents the vehicle seat from moving up due to an upward load caused by the seat belt mechanism force S.
  • Patent Document 1 JP 2002-59770 A
  • Patent Document 2 Japanese Patent Laid-Open No. 2001-163091
  • a conventional height lock mechanism prevents an upward movement of a vehicle seat by engaging an arcuate gear portion of a lock arm with a gear.
  • the gear and the lock arm changes with the change of the height position of the vehicle seat
  • the locking performance of the gear lock mechanism also changes with the change of the height position of the vehicle seat.
  • an object of the present invention is to provide a vehicle seat height lock device in which the locking performance is kept constant even when the height position of the vehicle seat is adjusted.
  • FIG. 1 is a schematic view showing a side surface of a vehicle seat.
  • FIG. 2 Front side of the height lock mechanism of the present invention.
  • FIG. 3 is an exploded view of the height lock mechanism.
  • FIG. 4 is a side view of the height lock mechanism.
  • FIG. 5 is a front view of the height lock mechanism.
  • FIG. 6 is a front view of the height lock mechanism in an unlocked state.
  • FIG. 7 is a front view of the height lock mechanism in an unlocked state.
  • FIG. 8 is an enlarged front view showing a gear portion of a gear plate of the gear lock mechanism and an engagement gear of a lock arm.
  • FIG. 9 is a front view showing the height lock mechanism during the transition to the unlocked state force.
  • FIG. 10 is a front view showing the height lock mechanism during the transition to the unlocked state force.
  • FIG. 11 is a front view showing the height lock mechanism immediately before being locked.
  • FIG. 12 is a front view showing the height lock mechanism in a locked state.
  • a vehicle seat 1 includes a seat bottom 4 that is slidably attached to a vehicle body (floor panel) 2 via a slide mechanism 3, and is attached to the seat bottom 4 so as to be rotatable about an axis 5.
  • Seat back 6. In FIG. 1, an elastic member such as urethane foam to be attached to the vehicle seat 1 is omitted.
  • the seat back 6 is held at an arbitrary angle with respect to the seat bottom 4 by the recliner mechanism 7.
  • the slide mechanism 3 includes a lower rail 8 that is fixed to the vehicle body 2 and an upper rail 9 that is slidably engaged with the lower rail 8.
  • the integrated vertical bracket 70 of the upper rail 9 is connected to the seat bottom frame 71 via the height adjusting mechanism 10.
  • the height adjusting mechanism 10 includes a front rotating arm 72 and a rear rotating arm 73.
  • the upper part of the front arm 72 is fixed to the seat bottom frame 71 by the front upper shaft 74, and the lower part of the front arm 72 is fixed to the vertical bracket 70 of the upper rail 9 by the front lower shaft 75.
  • the upper part of the rear arm 73 is attached to the bottom frame 71 by the rear upper shaft 76, and the lower part of the rear arm 73 is fixed to the vertical bracket 70 by the rear lower shaft 77.
  • the operation unit 18 of the height adjusting mechanism 10 is provided at a desired position of the vehicle seat 1.
  • the operation unit 18 includes an operation dial 24, a gear 22 that is rotated by the operation dial 24, and a sector gear 20 that is engaged with the gear 22 and rotates about a shaft 78.
  • the sector gear 20 is connected to the upper part of the rear rotating arm 73 through connecting means 19 such as a rod and a gear.
  • connecting means 19 such as a rod and a gear.
  • the vehicle seat 1 has a seat belt mechanism 79.
  • the seat belt mechanism 79 includes a belt retractor 80 and a seat belt 30.
  • the retractor 80 is fixed to the vehicle body 2 or the vehicle seat 1.
  • the retractor 80 regulates the withdrawal of the seat belt 30 when a strong forward load is applied to the seat belt 30 due to a vehicle collision or the like.
  • the front end of the seat belt 30 is connected to a belt anchor 41 (Fig. 2).
  • the height lock mechanism 40 has a pair of guide plates 42 and a gear plate 60 provided between the guide plates 42 as well shown in FIG.
  • the guide plate 42 has a substantially triangular shape and is fixed to the seat bottom frame 71 by the upper mounting shaft 45. The distance between the guide plates 42 and 42 is kept constant by the stepped shaft 43 threaded through the vertical slots 44 and 44 of the guide plates 42 and 42. The guide plates 42 and 42 can move in the vertical direction relative to the stepped shaft 43.
  • the gear plate 60 has a vertically long U-shape, and a vertical bracket 70 is formed by a lower mounting shaft 64.
  • a pair of shaft holes 50, 50 are provided on both lower sides of each guide plate 42, and lock shafts 51, 51 are passed through the shaft holes 50, 50, respectively.
  • the lock arms 52 and 52 are rotatably supported. When the lock arms 52 and 52 are rotated inward, the lock arms 52 and 52 are engaged with and held by the gear portions 65 and 65 of the gear plate 60, so that the relative relationship between the gear plate 60 (vehicle body 2) and the guide plate 42 (vehicle seat 1) is obtained. Regulates vertical movement.
  • the knob lock mechanism 40 has a pair of moving plates 46 and 46 located outside the guide plates 42 and 42.
  • Each moving plate 46 has an engagement hole 81 that engages with the stepped shaft 43, and the belt anchor 41 is fixed to the tip of the stepped shaft 43.
  • the belt anchor 41 moves upward, whereby the stepped shaft 43 Also moves up in the longitudinal groove 62 of the gear plate 60. Further, the moving plates 46 and 46 fixed to the stepped shaft 43 also move upward at the same time.
  • guide rods 54, 54 are provided between the moving plates 46, 46.
  • the guide rods 54 and 54 are slidably engaged with guide slots 53 and 53 formed on the distal ends of the lock arms 52 and 52, respectively.
  • the upper leg portion of the panel 66 is attached to the moving plate 46, and the lower leg portion of the panel 66 is engaged with the bent portion 82 of the guide plate 42, and the moving plate 46 is biased downward by the elasticity of the panel 66.
  • the belt anchor 41 When a normal external force is applied to the seat belt 30 (when an excessive external force due to a vehicle collision or the like is not applied to the seat belt 30), the belt anchor 41 is lowered by the elasticity of the panel 66.
  • the stepped shaft 43 is positioned in the lower part of the vertical slot 44 of the guide plate 42.
  • the guide rods 54 and 54 are located at the bases of the guide slots 53 and 53 of the lock arms 52 and 52, and the lock arms 52 and 52 are the gears of the gear plate 60.
  • the height lock mechanism 40 is unlocked while being separated from the portions 65 and 65. Therefore, the distance between the vehicle body 2 and the vehicle seat 1 can be freely adjusted by the height adjusting mechanism 10.
  • the vertical linear gear portion 65 of the gear plate 60 has a horizontal engagement surface 65 6 and an inclined guide surface 65 ⁇
  • the engagement gear of the lock arm 52 55 has a horizontal engagement surface 55 ⁇ that engages with the horizontal engagement surface 65 ⁇ and an inclined guide surface 55 ⁇ that engages with the inclined guide surface 65 ⁇ .
  • the lock arms 52, 52 rotate inward and engage with the gear portions 65, 65 of the gear plate 60.
  • the shaft hole 50 of the lock arm 52 is formed to have a larger diameter than the lock shaft 51, and play is provided between the shaft hole 50 and the lock shaft 51.
  • a spring 83 that urges the lock shafts 51 and 51 to approach each other.
  • the belt anchor 41 When a normal external force is applied to the seat belt 30 (when an excessive external force is applied to the seat belt 30 due to a vehicle collision, etc.), the belt anchor 41 is moved downward by the elasticity of the panel 66. The stepped shaft 43 is held at the lower portion of the guide plate 42 in the vertical slot 44. In this normal state, as shown in FIGS. 6 and 7, the guide rods 54 and 54 are located at the bases of the guide slots 53 and 53 of the lock arms 52 and 52, and the lock arms 52 and 52 are the gear portions 65 and 65 of the gear plate 60. Separated from 65, the height lock mechanism 40 is unlocked.
  • the lock arms 52, 52 rotate inward and engage with the gear portions 65, 65 of the gear plate 60.
  • the engagement gears 55 and 55 of the lock arms 52 and 52 the moment when the S gear plate ⁇ 60 engages with the gears 65 and 65, the tip of the engagement gears 55 and 55, and the gear.
  • the shafts 50, 50 of the lock arms 52, 52 are formed to have a larger diameter than the lock shafts 51, 51, and the shafts 50, 50 are arranged between the lock shafts 51, 51.
  • a panel 83 is provided between the lock shafts 51 and 51 to urge the lock shafts 51 and 51 so as to approach each other.
  • the vehicle seat 1 When the seat lock mechanism 40 is in the locked state, the vehicle seat 1 is supported by the vehicle body 2 via the height adjusting mechanism 10 and the node lock mechanism 40. In other words, an excessive external force applied to the vehicle seat 1 due to a vehicle collision or the like is transmitted to the vehicle body 2 via both the height adjusting mechanism 10 and the height lock mechanism 40. For this reason, the strength required for the height adjustment mechanism 10 and the vehicle seat 1 can be suppressed, and the weight of the entire vehicle seat 1 can be reduced.
  • the gear plate 60 is fixed to the vehicle body 2 and the guide plate
  • the seat 42 is fixed to the vehicle seat 1, and the gear plate 60 and the guide plate 42 always move relatively linearly even if the positional relationship between the vehicle body 2 and the vehicle seat 1 is changed.
  • the lock arms 52, 52 are fixed to the guide plate 42. For this reason, the angle between the rotation direction of the lock arms 52 and 52 and the length direction of the gear plate 60 is always kept constant, and the engagement performance between the lock arms 52 and 52 and the gear plate 60 is also kept constant. It is.
  • the height lock mechanism 40 of the present invention includes two lock arms 52 and 52 that engage with the gear plate 60. For this reason, the locking performance of the height lock mechanism 40 is excellent.
  • the vertical straight gear portions 65, 65 of the gear plate 60 have a horizontal engagement surface 65A, and the engagement gears 55, 55 of the lock arms 52, 52 are The horizontal engagement surface 55A engages with the horizontal engagement surface 65A.
  • the lock arms 52, 52 can be engaged with the gear plate 60 at an angle orthogonal to the moving direction of the gear plate 60, and the hook performance of the height lock mechanism 40 is further improved.

Landscapes

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

Abstract

Ce système de blocage de la hauteur pour siège automobile possède un mécanisme d'ajustement de la hauteur (10) installé entre un support (70) fixé à un habitacle de véhicule (2) et le siège du véhicule (1), une plaque de guidage (42) fixée au siège du véhicule (1), et un plateau d'engrenage (60) fixé au support (70). Une paire de bras de blocage (52, 52) est installée sur la plaque de guidage (42) et les bras de blocage (52, 52) s'engagent avec le plateau d'engrenage (60) lorsqu'une charge est appliquée à la ceinture de sécurité (30) d'une personne assise en cas d'urgence. Les bras de blocage (52, 52) sont pivotants et ils sont maintenus en position par des arbres de verrouillage (51, 51) insérés avec du jeu dans les trous d'arbres (50, 50) prévus sur la plaque de guidage (42).
PCT/JP2006/308245 2005-04-19 2006-04-19 Système de blocage de la hauteur pour siège automobile WO2006112486A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005121742A JP4807770B2 (ja) 2005-04-19 2005-04-19 車両用シート
JP2005-121742 2005-04-19

Publications (1)

Publication Number Publication Date
WO2006112486A1 true WO2006112486A1 (fr) 2006-10-26

Family

ID=37115198

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/308245 WO2006112486A1 (fr) 2005-04-19 2006-04-19 Système de blocage de la hauteur pour siège automobile

Country Status (2)

Country Link
JP (1) JP4807770B2 (fr)
WO (1) WO2006112486A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63176753A (ja) * 1986-10-29 1988-07-21 ツェー．ロブ．ハマーシュタイン　ゲー．エム．ベー．ハー． 長手方向ガイドと高さ又は傾斜変位部とベルトロック固定部とを備えた自動車用シート
JP2006088748A (ja) * 2004-09-21 2006-04-06 Aisin Seiki Co Ltd シート装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63176753A (ja) * 1986-10-29 1988-07-21 ツェー．ロブ．ハマーシュタイン　ゲー．エム．ベー．ハー． 長手方向ガイドと高さ又は傾斜変位部とベルトロック固定部とを備えた自動車用シート
JP2006088748A (ja) * 2004-09-21 2006-04-06 Aisin Seiki Co Ltd シート装置

Also Published As

Publication number Publication date
JP4807770B2 (ja) 2011-11-02
JP2006298120A (ja) 2006-11-02

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