Abstract: An anchor plate (12) and an inner lap anchor (14) disposed at left and right sides of a vehicle seat are connected to an inner side cable (20A) and an outer side cable (20B), respectively. The anchor plate (12) and the inner lap anchor (14) are pulled substantially at the same time by a pretensioner device (21) when acceleration of a predetermined degree or more is applied to a seat (1). A support device (40) is provided between the inner lap anchor (14) and the inner side cable (20A) so as to support load applied to the inner lap anchor (14) in a distributed manner.

Abstract: A seat bottom of a vehicle seat includes a base portion, a movable frame configured to be movable in a front-rear direction relative to the base portion, a tension generator and a tension transmission member. The tension transmission member connected at one end of its first portion with the tension generator is bifurcated at another end of a first portion into a second portion connected with a seat belt anchor or a seat belt buckle and a third portion connected with the movable frame. Upon activation of the tension generator, the third portion pulls the movable frame rearward and at the same time the second portion pulls the seat belt anchor or the seat belt buckle.

Abstract: A vehicle seat comprises a reclinable seatback (2), a seat bottom (3) movable in a front-and-rear direction, a pretensioner (41) for moving the seat bottom (3) rearward, and brackets (21, 21) attached to a vehicle body. The seat bottom is attached to the brackets so as to move in the front-and-rear direction, the seatback is rotatably attached to the brackets, and the pretensioner moves the seat bottom relatively rearward with respect to the brackets. When the seat bottom is moved rearward by the pretensioner, a front portion of the seat bottom is moved upward.

Abstract: The present vehicle seat includes a seat bottom 3 and a seat back 2 rotatably mounted to the seat bottom. The seat bottom includes a support frame 10 mounted to a vehicle body 7 and a bottom cushion 15 supported by a support frame. The support frame has a configuration not to move in a front-and-back direction with respect to the vehicle body by unfavorable external force that abruptly moves a seat occupant forward. The seat bottom has a configuration to be movable in the front-and-back direction with respect to the support frame. Between the bottom cushion and the support frame, a pretensioner 21 that moves the bottom cushion backward with respect to the support frame is located when the unfavorable external force occurs.

Abstract: A seatbelt mechanism (S) comprises a chip anchor (12) disposed to one of right and left sides of a seat bottom (3) of the vehicle seat (1) and coupled to a tip end of the seatbelt (10), and a tongue anchor (14) disposed to the other of the right and left sides of the seat bottom (3) and engaged with a tongue plate (13) disposed to an intermediate portion of the seatbelt (10). A pretensioner mechanism (21) moves both the chip anchor (12) and the tongue anchor (14) substantially at the same time to actively tenses the seatbelt (10) when the vehicle collision occurs. A moving distance of the chip anchor (12) is substantially equal to a moving distance of the tongue anchor (14).

Abstract: A vehicle seat is configured to be adjustable in height having a height adjusting mechanism composed of a link mechanism disposed between a lower rail provided at a vehicle body side and the vehicle seat. The vehicle seat comprises a guide plate provided on the vehicle seat, a gear plate attached to the lower rail and movably provided on the guide plate in a straight direction, a pair of lock arms provided on the guide plate and engageable with a pair of gear portions of the gear plate when an emergency load is applied to a seat belt of a vehicle seat occupant. The pair of gear portions is formed by mutually deviating by half pitch P each between an engagement plane of one gear portion and an engagement plane of the other gear portion.

Abstract: An anchor plate (12) and an inner lap anchor (14) disposed at left and right sides of a vehicle seat are connected to an inner side cable (20A) and an outer side cable (20B), respectively. The anchor plate (12) and the inner lap anchor (14) are pulled substantially at the same time by a pretensioner device (21) when acceleration of a predetermined degree or more is applied to a seat (1). A support device (40) is provided between the inner lap anchor (14) and the inner side cable (20A) so as to support load applied to the inner lap anchor (14) in a distributed manner.

Abstract: A vehicle seat is configured such that a seating surface of a seat bottom moves in response to a frontal collision as defined with respect to an occupant seated on the vehicle seat. The vehicle seat includes: a base frame of the seat bottom configured to be supported on a vehicle body; a movable frame 40 configured to be movable relative to the base frame; at least one driving force generator (second gas cylinder 61) configured to be activated in response to the frontal collision; and at least one driving force transmission member configured to transmit a driving force generated by the driving force generator. At least one of the driving force generator is arranged opposite to the movable frame 40, and the movable frame 40 has a recess portion 42A at a position opposite to the driving force generator.

Abstract: A seat frame 51 is mounted on a body freely movably back and forth. The frame 51 moves backward by leaving a backrest seat 2 by a pretensioner device 10. A front portion of a spring material 71 supporting a cushion material 62 of the seat 3 is arranged on the front portion of the seat frame 51. A rear-side portion of the spring material 71 is mounted on a rear-side spring mounting member 72 below the backrest seat 2. The mounting member 72 is immovable and extends in a lateral direction. A rear position of a cushion material 62 does not move even if the seat moves backward.

Abstract: A vehicle seat comprises a seat bottom, a seat back pivotably attached to the seat bottom, a seat belt. The seat bottom has a support frame to be attached to a vehicle body, and a bottom cushion supported by the support frame. A pretensioner is disposed between the bottom cushion and the support frame to move the bottom cushion rearward with respect to the support frame when the unpreferable external force is generated. When the pretensioner is actuated, the bottom cushion moves rearward, and a moving distance S of a tip anchor and a tongue anchor is set larger than a moving distance T of the bottom cushion.

Abstract: A seat bottom of a vehicle seat includes a base portion, a movable frame configured to be movable in a front-rear direction relative to the base portion, a tension generator and a tension transmission member. The tension transmission member connected at one end of its first portion with the tension generator is bifurcated at another end of a first portion into a second portion connected with a seat belt anchor or a seat belt buckle and a third portion connected with the movable frame. Upon activation of the tension generator, the third portion pulls the movable frame rearward and at the same time the second portion pulls the seat belt anchor or the seat belt buckle.

Abstract: A seatbelt mechanism (S) comprises a chip anchor (12) disposed to one of right and left sides of a seat bottom (3) of the vehicle seat (1) and coupled to a tip end of the seatbelt (10), and a tongue anchor (14) disposed to the other of the right and left sides of the seat bottom (3) and engaged with a tongue plate (13) disposed to an intermediate portion of the seatbelt (10). A pretensioner mechanism (21) moves both the chip anchor (12) and the tongue anchor (14) substantially at the same time to actively tenses the seatbelt (10) when the vehicle collision occurs. A moving distance of the chip anchor (12) is substantially equal to a moving distance of the tongue anchor (14).

Abstract: A seat frame 51 is mounted on a body freely movably back and forth. The frame 51 moves backward by leaving a backrest seat 2 by a pretensioner device 10. A front portion of a spring material 71 supporting a cushion material 62 of the seat 3 is arranged on the front portion of the seat frame 51. A rear-side portion of the spring material 71 is mounted on a rear-side spring mounting member 72 below the backrest seat 2. The mounting member 72 is immovable and extends in a lateral direction. A rear position of a cushion material 62 does not move even if the seat moves backward.

Abstract: A vehicle seat comprises a reclinable seatback (2), a seat bottom (3) movable in a front-and-rear direction, a pretensioner (41) for moving the seat bottom (3) rearward, and brackets (21, 21) attached to a vehicle body. The seat bottom is attached to the brackets so as to move in the front-and-rear direction, the seatback is rotatably attached to the brackets, and the pretensioner moves the seat bottom relatively rearward with respect to the brackets. When the seat bottom is moved rearward by the pretensioner, a front portion of the seat bottom is moved upward.

Abstract: The present vehicle seat includes a seat bottom 3 and a seat back 2 rotatably mounted to the seat bottom. The seat bottom includes a support frame 10 mounted to a vehicle body 7 and a bottom cushion 15 supported by a support frame. The support frame has a configuration not to move in a front-and-back direction with respect to the vehicle body by unfavorable external force that abruptly moves a seat occupant forward. The seat bottom has a configuration to be movable in the front-and-back direction with respect to the support frame. Between the bottom cushion and the support frame, a pretensioner 21 that moves the bottom cushion backward with respect to the support frame is located when the unfavorable external force occurs.

Abstract: The present pretensioner includes a cylinder (43), a piston (44) that moves inside the cylinder, and a gas generator (45) that moves the piston by supplying a gas into an expansion chamber (49) inside the cylinder. The gas generator is arranged inside the piston. A first cable (40A) to move a movable member M of a vehicle seat is coupled to the piston and a second cable (40B) to move the movable member is coupled to the cylinder.

Abstract: A vehicle seat comprises a seat bottom, a seat back pivotably attached to the seat bottom, a seat belt. The seat bottom has a support frame to be attached to a vehicle body, and a bottom cushion supported by the support frame. A pretensioner is disposed between the bottom cushion and the support frame to move the bottom cushion rearward with respect to the support frame when the unpreferable external force is generated. When the pretensioner is actuated, the bottom cushion moves rearward, and a moving distance S of a tip anchor and a tongue anchor is set larger than a moving distance T of the bottom cushion.

Abstract: A vehicle seat is configured to be adjustable in height having a height adjusting mechanism composed of a link mechanism disposed between a lower rail provided at a vehicle body side and the vehicle seat. The vehicle seat comprises a guide plate provided on the vehicle seat, a gear plate attached to the lower rail and movably provided on the guide plate in a straight direction, a pair of lock arms provided on the guide plate and engageable with a pair of gear portions of the gear plate when an emergency load is applied to a seat belt of a vehicle seat occupant. The pair of gear portions is formed by mutually deviating by half pitch P each between an engagement plane of one gear portion and an engagement plane of the other gear portion.

Abstract: A vehicle seat has a seat bottom frame, a seat back frame rotatably attached to the seat bottom frame, a lower rail fixed to a vehicle body, an upper rail slidably attached to the lower rail, and a height control mechanism and a height lock mechanism provided between the upper rail and the seat bottom frame. A belt retractor of a seat belt mechanism is fixed to the bottom frame or the back frame. A tip anchor and a tongue anchor of the seat belt mechanism are coupled to the upper rail.

Abstract: A vehicle seat has a seat bottom frame, a seat back frame rotatably attached to the seat bottom frame, a lower rail fixed to a vehicle body, an upper rail slidably attached to the lower rail, and a height control mechanism and a height lock mechanism provided between the upper rail and the seat bottom frame. A belt retractor of a seat belt mechanism is fixed to the bottom frame or the back frame. A tip anchor and a tongue anchor of the seat belt mechanism are coupled to the upper rail.