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WO2015093185A1 - Dispositif de ceinture de sécurité - Google Patents

Dispositif de ceinture de sécurité Download PDF

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Publication number
WO2015093185A1
WO2015093185A1 PCT/JP2014/079753 JP2014079753W WO2015093185A1 WO 2015093185 A1 WO2015093185 A1 WO 2015093185A1 JP 2014079753 W JP2014079753 W JP 2014079753W WO 2015093185 A1 WO2015093185 A1 WO 2015093185A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat belt
arm
vehicle
seat
occupant
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/JP2014/079753
Other languages
English (en)
Japanese (ja)
Inventor
隆章 木村
大輔 村上
理宏 森
雅人 高尾
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.)
Takata Corp
Original Assignee
Takata Corp
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 Takata Corp filed Critical Takata Corp
Publication of WO2015093185A1 publication Critical patent/WO2015093185A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/02—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems
    • B60R22/03—Means for presenting the belt or part thereof to the wearer, e.g. foot-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/02—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems
    • B60R22/022—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems with means for facilitating access to rear seats in two-door cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/02—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems
    • B60R2022/029—Belt storage; Devices or systems for controlling winding up of unused seat belt

Definitions

  • the present invention relates to a seat belt device for restraining an occupant.
  • one end side of the seat belt is wound up by a retractor device, and if necessary, the one end side is pulled out from the retractor device, thereby restraining an occupant.
  • this retractor device is disposed on the vehicle body floor near the front seat and the vehicle body center pillar.
  • the arm has a front standing position toward the front side of the vehicle where the one end side of the seat belt is extended, and a rear standing position toward the rear side of the vehicle where the one end side of the seat belt is wound up. , Rocking.
  • An object of the present invention is to provide a seat belt device in which an arm does not get in the way when a passenger using a rear seat gets on and off in a two-door vehicle.
  • a predetermined condition is satisfied while the one end side of the seat belt is urged and wound in the winding direction and the one end side of the seat belt can be extended.
  • a retractor device configured to prevent the one end side of the seat belt from being extended, a buckle connected to a stationary member of a vehicle, a tongue provided on the seat belt and engaged with the buckle, A riding position in which the base end is supported by the vehicle so that the front end thereof can swing in the front-rear direction of the vehicle, and the front end of the seat belt is extended when the front end swings and stands up toward the front side of the vehicle
  • An arm serving as a disengagement position when one end side of the seat belt is pulled back when the front end swings backward on the vehicle and falls or when it stands up and moves to the rear of the vehicle;
  • a rocking device to change the drop-off location and riding position the arm in response to descending state and having a.
  • the seat belt device of the present invention is configured such that when a predetermined condition is satisfied while the one end side of the seat belt is urged and wound in the take-up direction by the retractor device and the one end side of the seat belt can be extended.
  • the seat belt is provided with a tongue that is prevented from being fed out on one end side of the belt and engages with a buckle connected to a stationary member of the vehicle.
  • the seat belt device of the present invention is provided with an arm that can swing in the front-rear direction of the vehicle in order to facilitate the belt mounting operation of the occupant.
  • the base end of this arm is supported by the vehicle so that the front end of the arm can swing in the longitudinal direction of the vehicle.
  • the arm is set to the riding position where the end of the seat belt is extended when the front end of the arm swings to the front side of the vehicle by the swinging device, and the front end swings backward to the vehicle.
  • the one end side of the seat belt is pulled back to the disengagement position.
  • a boarding / exiting sensor for detecting or predicting an occupant's boarding / alighting state according to the first invention, wherein the swing device detects the occupant's boarding when the boarding / exiting sensor detects or predicts boarding of the occupant It is characterized in that when the getting-on / off sensor detects or predicts the passenger getting off, the arm is lowered to the getting-off position.
  • the arm when the occupant gets on or off the arm, the arm is lying behind the vehicle, and when detecting that the occupant gets on the arm, the arm stands up in front of the vehicle while extending one end side of the seat belt. be able to.
  • a third invention includes the door sensor for detecting opening / closing of a vehicle door according to the first invention, wherein the swing device stands up at the boarding position when the door sensor detects the closing of the vehicle door, When the door sensor detects the opening of the vehicle door, the arm is laid down to the dismounting position.
  • the occupant when the door is opened, the occupant can get on and off as if the occupant gets on and off, and when the door is closed, the arm can be raised up as if the occupant is sitting on the seat.
  • the swing sensor includes a seat sensor that detects that the occupant is seated on the seat, and the swing device moves the arm to the riding position when the seat sensor detects the occupant's seating. It is characterized by standing.
  • a fifth invention is characterized in that, in the fourth invention, the swing device does not operate when the seat sensor does not detect the seating of an occupant even if the door sensor detects the closing of the vehicle door. To do.
  • the swinging device includes a rotating body that engages with the arm and swings the arm within a predetermined range, and one end is held by the rotating body.
  • a spring having the other end held by an arm, and the retractor device transmits a drive of the motor to the rotating body, the motor winding the one end side of the seat belt, and the motor is connected to the seat belt.
  • a clutch that releases the drive of the motor to the rotating body when the winding of the one end side is completed, and the arm swings when the winding of the one end side of the seat belt by the motor is completed. It is in the winding completion position inclined toward the rear side of the vehicle with respect to the moving fulcrum, and is laid down to the dismounting position by releasing the clutch and urging the spring.
  • the present invention it is possible to prevent the arm from getting in the way when a passenger using a rear seat gets on and off in a two-door vehicle.
  • FIG. 1 is a front view of a swing mechanism that shows a seat belt device according to an embodiment of the present invention and swings an arm back and forth of a vehicle.
  • 1 shows a seat belt device according to an embodiment of the present invention and is a cross-sectional view of a swing mechanism. It is explanatory drawing of the boarding position which showed the effect
  • FIG. 5 is an explanatory diagram of a seat belt retracting completion position when the arm swings, showing the action of the arm in the seat belt device of the embodiment of the present invention. It is the conceptual diagram which showed the action
  • FIGS. 1 to 3 are conceptual diagrams showing the operation (details will be described later) of the seat belt in the seat belt device according to the present invention.
  • FIG. 1 is a view showing a state in which a seat belt is mounted
  • FIG. 2 is a view showing a state in the middle of removal of the seat belt
  • FIG. 3 is a view in which a passenger P is not sitting on the seat.
  • the seat belt device has a retractor device 10 that is located on the outside of the vehicle body of the seat 1 and is installed on a floor panel or the like. Then, the seat belt 2 is wound around the retractor device 10. The pay-out part of the seat belt 2 is stretched over a through anchor 3 installed on the upper part of a center pillar or the like, folded back there, and guided downward. And the front-end
  • a buckle (not shown) is installed on the floor panel or the like, positioned on the other side of the seat 1.
  • the occupant P is restrained by the seat 1 by attaching the tongue 5 of the seat belt 2 to the buckle.
  • a door sensor that detects that the front door of the vehicle is opened
  • a seat sensor that detects that the occupant P is seated on the seat 1, and a tongue 5 are provided.
  • a buckle sensor for detecting that the buckle is attached / detached.
  • Each of these sensors functions as a boarding / alighting sensor that detects or predicts the boarding / alighting state of the passenger P.
  • FIGS. 5 and 6 are perspective views showing the retractor device 10, FIG. 4 is an exploded perspective view showing the overall structure, and FIGS. 5 and 6 are partially extracted enlarged views of FIG.
  • the frame 12 of the retractor device 10 is formed in a U shape by a pair of parallel side walls 12a and 12b and a back wall 12c connecting them.
  • the side walls 12a and 12b of the frame 12 are formed with large-diameter holes 12d and 12e.
  • a first retainer 13, a cover 14, a spring case 15, and a pretensioner cassette 16 are attached in this order to the outer surface of the side wall 12a of the frame 12, and a second retainer 17 is attached to the outer surface of the side wall 12b.
  • the reel 11 of the retractor device 10 has a cylindrical shape with one end closed. In the center of the closed end surface of the reel 11, a shaft 18 is provided outward. As shown in FIG. 5, the shaft 18 includes a large-diameter shaft portion 18a, a medium-diameter shaft portion 18b, and a small-diameter shaft portion 18c. Splines are formed in the large-diameter shaft portion 18a and the medium-diameter shaft portion 18b.
  • the retractor device 10 includes a torsion bar 19 that constitutes a force limiter mechanism A.
  • One end of the torsion bar 19 is fixed with a locking base 20 that constitutes one of the components of an emergency lock mechanism B described later.
  • the tip 19 a of the torsion bar 19 is inserted from the opening of the reel 11.
  • the tip 19a is integrally connected to the closed end of the reel 11.
  • the locking base 20 is formed with a shaft 21 extending on the opposite side to the torsion bar 19.
  • the reel 11 is positioned between the side wall 12a and the side wall 12b of the frame 12.
  • the shaft 18 is rotatably supported by the pretensioner cassette 16 with a small diameter shaft portion 18c.
  • the shaft 21 is rotatably supported by the second retainer 17.
  • a motor 22 is supported on the first retainer 13. This motor 22 is for forcibly driving the reel 11.
  • the drive shaft 22 a of the motor 22 is linked to the shaft 18 of the reel 11 by the power transmission mechanism C.
  • the power transmission mechanism C includes a planetary gear mechanism that is accommodated in a large-diameter hole 13 a formed in the first retainer 13.
  • the planetary gear mechanism includes three planetary gears 23, and these planetary gears 23 are rotatably supported on the peripheral edge of the side surface of the carrier 24.
  • a spline hole 24 a is formed at the center of the carrier 24.
  • the spline hole 24a is engaged with the spline of the large-diameter shaft portion 18a of the reel 11.
  • the planetary gears 23 are meshed with internal teeth 25 a of the internal gear 25 so as to surround the planetary gears 23.
  • the sun gear 26 is rotatably held by the large-diameter shaft portion 18 a of the reel 11 and meshed with the planetary gear 23.
  • the sun gear 26 is integrally engaged with the center hole 27 a of the large-diameter gear 27.
  • the outer teeth 27b of the large-diameter gear 27 drive the motor 22 via an intermediate gear 28 that is rotatably supported by the first retainer 13 and a connect gear 29 that is rotatably supported by the first retainer 13.
  • the motor gear 30 is fixed to the shaft 22a.
  • the clutch mechanism D selectively cuts off power transmission from the motor 22 to the reel 11.
  • the clutch mechanism D includes a spring holding member 31, a lever spring 32, and the like attached to the side surface of the connect gear 29.
  • a protrusion having a groove 31b is formed on the peripheral surface of the spring holding member 31, a protrusion having a groove 31b is formed.
  • the spring holding member 31 is attached to the side surface of the connect gear 29 by a pin 31a.
  • the lever spring 32 includes a curved portion 32a at one end.
  • the lever spring 32 is rotatably supported by the spring holding member 31 by inserting the curved portion 32a so as to fit into the groove 31b of the spring holding member 31.
  • a locking lever 33 is disposed at the tip of the lever spring 32.
  • the locking lever 33 has a claw 33a at the tip.
  • the claw 33 a is positioned so as to face the external teeth 25 b formed on the peripheral surface of the internal gear 25.
  • FIG. 7 and 8 are sectional views for explaining the operation of the power transmission mechanism C.
  • the power transmission mechanism C includes a retractor device 10. As shown in FIG. 7, when the drive shaft 22 a of the motor 22 is rotated in the seat belt winding direction (CCW direction), the power is transmitted to the connect gear 29 via the motor gear 30. Thereby, the connect gear 29 is rotated in the CCW direction. When the connect gear 29 rotates in the CCW direction, the locking lever 33 is operated via the lever spring 32, and the claw 33a of the locking lever 33 engages with the external teeth 25b of the internal gear 25.
  • the internal gear 25 is prevented from rotating by the claw 33a of the locking lever 33.
  • the planetary gear 23 revolves while rotating along the internal teeth 25a of the internal gear 25. Accordingly, the carrier 24 is rotated, and the reel 11 is rotated in the seat belt winding direction (CCW direction) via the shaft 21. Therefore, the seat belt 2 is forcibly wound up.
  • the claw 33a of the locking lever 33 is separated from the external tooth 25b of the internal gear 25, so that the internal gear 25 is rotatable.
  • the planetary gear 23 rotates the internal gear 25 without being revolved. Therefore, the carrier 24 is not rotated and the reel 11 is not rotated.
  • the retractor apparatus 10 includes a spring mechanism E that urges the reel 11 in the seat belt winding direction (CCW direction) at the normal time.
  • the spring mechanism E biases the seat belt 2 in the direction to wind the reel 11.
  • the spring mechanism E holds the seat belt 2 in an unloaded state, that is, when the seat belt 2 is not used.
  • the spring mechanism E always brings the seat belt 2 into contact with the occupant P with a weak tension when the seat belt 2 is used.
  • the spring mechanism E restrains the occupant P so that the seat belt 2 can be easily extended when the occupant P moves the upper body forward.
  • the spring mechanism E is provided with a return spring 34 made of a spring.
  • the return spring 34 is accommodated between the cover 14 and the spring case 15.
  • the return spring 34 is engaged with a bush 35 whose inner end 34 a is splined to the medium diameter shaft portion 18 b of the reel 11, and the outer end 34 b is locked to the inner peripheral surface of the spring case 15.
  • the retractor device 10 includes a lock mechanism F.
  • the lock mechanism F immediately regulates the extension of the seat belt 2 to prevent the occupant P from hitting a front obstacle or the like. Suppress.
  • the lock mechanism F is constituted by a lock gear 36, a flywheel 37, and ratchet teeth 17a formed on the second retainer 17.
  • the flywheel 37 has a claw 37 a at the tip, and a base end is rotatably supported on the side surface of the lock gear 36.
  • the flywheel 37 is biased inward in the radial direction of the lock gear 36 by a spring 38 disposed between the flywheel 37 and the lock gear 36.
  • the claw 37a is in a state of being separated from the ratchet teeth 17a of the second retainer 17 by this urging.
  • the lock gear 36 is also rotated suddenly.
  • the flywheel 37 cannot follow the rotation of the lock gear 36 and is moved against the urging force of the spring 38.
  • the claw 37 a engages with the ratchet teeth 17 a of the second retainer 17.
  • the lock gear 36 is prevented from rotating, and accordingly, the reel 11 is prevented from rotating in the belt drawing direction (CW direction). Therefore, further extension of the seat belt 2 is restricted.
  • the emergency lock mechanism B operates even when the vehicle is decelerated at the time of a collision, for example, and the occupant P is about to protrude forward of the vehicle body. At that time, the occupant P is restrained to the seat by preventing the seat belt 2 from being extended.
  • the emergency lock mechanism B includes a deceleration detecting means 39, a pawl 40 supported by the locking base 20, ratchet teeth 41 formed on the inner surface of the large diameter hole 12e of the side wall 12b of the frame 12.
  • the deceleration detection means 39 includes a lever 39a and a claw 39b at the tip of the lever 39a.
  • the deceleration detection means 39 is installed on the outer surface of the side wall 12 b of the frame 12, and the claw 39 b is positioned to face the ratchet teeth 36 a of the lock gear 36.
  • the pawl 40 includes a cam follower 40a protruding toward the lock gear 36 on the side surface of the tip.
  • the pawl 40 includes a claw 40b at the tip. And this pawl 40 is supported by the side surface of the locking base 20 so that rotation is possible at the base end.
  • the cam follower 40 a is inserted into a cam groove 36 b formed on the side surface of the lock gear 36.
  • the claw 40 b is positioned to face the ratchet teeth 41.
  • a spring 41 ⁇ / b> A is interposed between the pawl 40 and the locking base 20, whereby the pawl 40 b of the pawl 40 is positioned away from the ratchet teeth 41.
  • the emergency lock mechanism B configured in this way, when the vehicle suddenly decelerates, the lever 39a of the deceleration detection means 39 is actuated, and the claw 39b engages with the ratchet teeth 36a of the lock gear 36.
  • the occupant P is restrained by the seat by preventing the seat belt 2 from being pulled out against the sudden deceleration of the vehicle.
  • the restraining force is relaxed by twisting the torsion bar 19 constituting the force limiter mechanism.
  • FIG. 9 is a front view of a swinging mechanism that swings the arm 4 back and forth (left and right in the drawing) of the vehicle
  • FIG. 10 is a cross-sectional view of the swinging mechanism.
  • the swing device 50 includes a base 51, an arm 4 that holds the folded portion 2 a of the seat belt 2 at the tip, and a swing shaft 52 that serves as a swing support point that supports the other end of the arm 4. And a rotating body 53 having a driven-side protrusion 53a that engages with a driving-side protrusion 4a provided at the other end of the arm 4, and a support protrusion 4b that is held at one end by the rotating body 53 and protrudes from the middle part of the arm 4.
  • a spring 54 having the other end held therein, and a tension spring 56 spanned between the swing shaft 52 and the rotation shaft 55 of the rotating body 53 are provided.
  • the base 51 is integrally formed with a pair of restricting protrusions 51a and 51b for restricting the moving range of the driven side protrusion 53a, that is, the rotating range of the rotating body 53, and a restricting groove 51c where the rotating shaft 55 is located. .
  • the base 51 is fixed to a vehicle body panel (not shown) or the like, and supports the swing shaft 52.
  • the rotating body 53 is integrally provided with a driven-side protrusion 53 a that protrudes in the radial direction from the peripheral surface, a support protrusion 53 b that supports one end of the spring 54, and a rotating shaft 55.
  • the spring 54 is on the front side of the vehicle with respect to the swing shaft 52, and the driving side protrusion 4a and the driven side protrusion 53a are in a disengaged state. Further, the rotation shaft 55 is positioned above the restriction groove 51 c by the biasing force of the tension spring 56. The driven projection 53a is in contact with the regulation projection 51a on the vehicle rear side.
  • the motor 22 is driven to start the winding of the seat belt 2.
  • the arm 4 starts swinging toward the rear of the vehicle, the drive side protrusion 4a engages with the driven side protrusion 53a, and the rotating body 53 rotates in the counterclockwise direction shown in the figure. Let At the same time, the rotating body 53 is rotated until the driven-side protrusion 53a contacts the other restricting protrusion 51b.
  • the clutch mechanism D is in the released state and the support protrusion 53b is located on the vehicle rear side with respect to the rotating shaft 55.
  • the motor 22 When the door sensor detects the opening of the front door and the seat sensor detects the seating of the occupant P, the motor 22 is driven and the clutch mechanism D is connected. Thereby, as shown in FIG. 15, the reel 11 starts to wind up the seat belt 2. At the same time, the driving side protrusion 4a engages with the driven side protrusion 53a to rotate the rotating body 53 in the clockwise direction in the figure.
  • the rotating body 53 rotates until the driven-side protrusion 53a contacts one of the restricting protrusions 51a. Thereafter, as shown in FIG. 17, when the seat belt 2 returns to the winding completion position, the driven side protrusion 53 a rides on the peripheral surface of the driving side protrusion 4 a and the rotating shaft 55 is biased by the tension spring 56. Accordingly, it moves to the lower side of the regulation groove 51c. Further, in this state, the clutch mechanism D is in a released state, and the support protrusion 53b is positioned on the vehicle front side with respect to the rotation shaft 55.
  • the arm 4 is rotated to the front side of the vehicle by the urging of the spring 54 to be in the riding position, and the rotating shaft 55 is restricted by the urging of the tension spring 56. Move back to the upper side of the groove 51c. Further, the clutch mechanism D is released, and the arm 4 swings from the position shown in FIG. 17 to the position shown in FIG. The operation position of the seat belt 2 by the occupant can be on the front side of the occupant.
  • the seat belt device of the present embodiment urges and winds one end of the seat belt 2 in the take-up direction and allows the one end of the seat belt 2 to be fed out while satisfying a predetermined condition.
  • a retractor device 10 configured to prevent the one end side of the seat belt 2 from being extended, a buckle connected to a stationary member of the vehicle, a tongue 5 provided on the seat belt 2 and engaged with the buckle. And the base end is supported by the vehicle so that the front end of the vehicle can swing in the front-rear direction of the vehicle, and the end of the seat belt 2 is extended when the front end swings and stands up toward the front side of the vehicle.
  • the arm 4 As a dismounting position in which one end side of the seat belt 2 is pulled back when the front end swings backward and the vehicle falls, and the arm 4 is disposed in the disengaging position and the dismounting position according to the passenger's getting-in / out state. Having, a swing device 50 to change and.
  • the swinging device 50 includes a rotating body 53 that engages with the arm 4 and swings the arm 4 within a predetermined range, a spring 54 having one end held by the rotating body 53 and the other end held by the arm 4,
  • the retractor device 10 includes a motor 22 that winds up one end side of the seat belt 2, and transmits the drive of the motor 22 to the rotating body 53, and the motor 22 completes winding of the one end side of the seat belt 2.
  • a clutch mechanism D for releasing the drive of the motor 22 to the rotating body 53, and the arm 4 is a swing shaft 52 that is a swing fulcrum when the winding of the one end side of the seat belt 2 is completed by the motor 22.
  • the vehicle is in the winding completion position inclined toward the rear side of the vehicle, and falls to the dismounting position by releasing the clutch mechanism D and urging the spring 54.
  • the seating / door closing is detected by each sensor, the motor 22 is driven, the clutch mechanism D is released, and the tip of the arm 4 is moved.
  • the seat belt 2 is extended in the extending direction while standing up to the boarding position.
  • the operation of the arm 4 includes the door sensor 60 for detecting the opening of the door, the seat sensor 61 for detecting that the occupant P is seated on the seat 1, and the tongue 5 being detached from the buckle. Control is performed based on the detection signal of the buckle sensor 62 to be detected.
  • the present invention is not limited to such control, and various modifications can be made without departing from the spirit and technical idea thereof. Hereinafter, such modifications will be described.
  • the swinging device is composed of a rhombus plate.
  • a guide groove 42 is formed in the arm 4 along the extending direction, and a shaft 43 that can be displaced in the guide groove 42 is a spring 44.
  • a diamond plate 46 that engages with the shaft 43 is disposed.
  • the shaft 43 may go around each side of the rhombus plate 46, and the swing position of the arm 4 may be switched depending on the position of the shaft 43.
  • the through anchor 3 is attached to the rear of the vehicle relative to the seat 1, and the arm 4 is movable in the longitudinal direction of the vehicle.
  • the arm 4 may be moved toward the rear of the vehicle only by the retracting force of the retractor device 10 when the occupant P gets on and off.
  • a rail 57 that extends in the longitudinal direction of the vehicle and allows the displacement of the arm 4 in the longitudinal direction of the vehicle, a rail spring 58 that biases the arm 4 in the pushing direction forward of the vehicle, and the tip of the arm 4 And a spiral spring 59 that urges the lever in the direction of swinging toward the vehicle rear side.
  • the clutch mechanism D is OFF, and the arm 4 and the spiral spring 59 are pushed forward by the pushing biasing force of the rail spring 58. Further, the arm 4 is erected on the vehicle front side by a spiral spring 59.
  • the force obtained by adding the urging force of the spiral spring 59 and the urging force of the rail spring 58 is set larger than the belt winding force.
  • the retractor device 10 When the front door is opened, the retractor device 10 is activated, and the seat belt 2 moves the arm 4 and the spiral spring 59 along the rail 57 to the rear of the vehicle. At this time, the urging force of the spiral spring 59 and the urging force of the rail spring 58 are smaller than the belt winding force.
  • the other end of the seat belt 2 is supported by the tip of the arm 4 so that the seat belt 2 is extended and pulled back so that the arm 4 becomes an outer anchor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

Le problème décrit par l'invention est de permettre à un passager de fixer facilement une ceinture de sécurité sans torsion du corps lorsqu'il est assis. La solution s l'invention porte sur un dispositif de ceinture de sécurité qui comprend : un dispositif rétracteur (10) configuré de façon à enrouler une ceinture de sécurité (2), tout en sollicitant une extrémité de la ceinture vers une direction d'enroulement, et à permettre le déroulement de l'extrémité de la ceinture de sécurité (2), tout en empêchant le déroulement de l'extrémité de la ceinture de sécurité (2) lorsqu'une condition prédéterminée est satisfaite; une languette (5) ajustée à la ceinture de sécurité (2) de façon à venir en prise avec une boucle; un bras (4) dont une extrémité proximale est portée sur un véhicule de telle manière que l'extrémité du bras peut être amenée à osciller dans une direction avant-arrière du véhicule, le bras ayant une position de voyage dans laquelle l'extrémité de la ceinture de sécurité (2) est déroulée quand le bras est dressé vers le haut, l'extrémité du bras étant amenée à osciller vers l'avant du véhicule, une position de débarquement dans laquelle l'extrémité de la ceinture de sécurité (2) est retirée lorsque le bras est abaissé, l'extrémité du bras étant amenée à osciller vers l'arrière du véhicule; un dispositif d'oscillation (50) qui fait passer le bras (4) vers la position de voyage ou la position de débarquement en fonction de l'état de voyage/débarquement du passager.
PCT/JP2014/079753 2013-12-16 2014-11-10 Dispositif de ceinture de sécurité Ceased WO2015093185A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013259360A JP6271239B2 (ja) 2013-12-16 2013-12-16 シートベルト装置
JP2013-259360 2013-12-16

Publications (1)

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WO2015093185A1 true WO2015093185A1 (fr) 2015-06-25

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PCT/JP2014/079753 Ceased WO2015093185A1 (fr) 2013-12-16 2014-11-10 Dispositif de ceinture de sécurité

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WO (1) WO2015093185A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6181845A (ja) * 1984-08-23 1986-04-25 Honda Motor Co Ltd 車両のシ−トベルト装置
JPH04103451A (ja) * 1990-08-23 1992-04-06 Takata Kk シートベルトリーチャ装置
JPH0469261U (fr) * 1990-10-23 1992-06-18
JP2007261429A (ja) * 2006-03-28 2007-10-11 Tokai Rika Co Ltd シートベルト装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6181845A (ja) * 1984-08-23 1986-04-25 Honda Motor Co Ltd 車両のシ−トベルト装置
JPH04103451A (ja) * 1990-08-23 1992-04-06 Takata Kk シートベルトリーチャ装置
JPH0469261U (fr) * 1990-10-23 1992-06-18
JP2007261429A (ja) * 2006-03-28 2007-10-11 Tokai Rika Co Ltd シートベルト装置

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