JP2019123281A - Occupant restraint device - Google Patents

Abstract

To obtain an occupant restraint device which can inhibit a submarine phenomenon occurring in a vehicle collision and inhibit a finger of an occupant from being caught by rotation of a buckle device in a direction of occupant's inertia migration.SOLUTION: A vehicle seat 11 to which an occupant restrain device 10 is applied is provided with a buckle pretensioner mechanism 40 which operates to rotate a buckle device 26 around a support shaft 32 in a seat anteroposterior direction to incline the buckle device 26 to the seat lower side. Further, a recessed part 50 is provided at a side part in a seat cushion 12 which faces a movable area OA of the buckle device 26. The structure can inhibit a finger T-1 of an occupant P from being caught between the side part and the buckle device 26 during operation of the buckle pretensioner mechanism 40.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an occupant restraint system.

  When the vehicle travels, the occupant is restrained by the three-point seat belt device. In this state, at the time of a vehicle collision, for example, at the time of a frontal collision, an inertial force to the front of the vehicle acts on the seated occupant. Therefore, when the seating position of the occupant is shallow, the waist of the occupant sinks into the seat cushion, and the body of the occupant passes the lower side of the webbing on the lap side (hereinafter referred to as "lap webbing") to the seat front side. A so-called submarine phenomenon may occur which sinks in.

  Patent Document 1 below describes a vehicle restraint device that pulls the end of the lap webbing (the engagement portion with the tongue plate) from the steady position to the vehicle lower side by tilting the buckle device to the vehicle front side at the time of a frontal collision. It is disclosed. According to the above configuration, at the time of a frontal collision, the angle of the webbing on the lap side for restraining the waist of the occupant can be positively changed in a more effective direction to prevent the submarine phenomenon.

JP 2005-193846 A

  However, according to the above prior art, when the buckle device tilts to the front side of the vehicle, there is a possibility that the occupant's finger is pinched between the seat cushion of the vehicle seat and the buckle device.

  In view of the above facts, the present invention can suppress the submarine phenomenon which occurs at the time of a vehicle collision, and can suppress the pinching of the finger of the passenger due to the turning of the buckle device in the inertial movement direction of the passenger. The aim is to get

  The occupant restraint system according to the present invention according to the first aspect of the present invention comprises: a lap webbing for restraining a waist of an occupant seated on a seat cushion; a tongue plate supported by the lap webbing; and an inner side of the seat cushion in the seat width direction. And a buckle device which is rotatably supported in a seat longitudinal direction about a support shaft and which engages the tongue plate to restrain the occupant's waist by the lap webbing, and the buckle device by operating the buckle device. A buckle pretensioner mechanism for tilting the buckle device from the initial standing position to the seat lower side from the initial standing position by rotating the seat back and forth direction around the support shaft; and the seat cushion, when the buckle pretensioner mechanism is activated Provided on the side opposite to the movable area of the buckle device, Passenger's finger has a pinching suppressing means suppressing be sandwiched between the buckle device.

  According to the first aspect of the present invention, after the occupant is seated on the seat cushion of the vehicle seat, the tongue plate supported by the lap webbing is engaged with the buckle device to be in the webbing mounted state. In this state, the buckle device is held at the initial standing position on the inner side in the seat width direction of the seat cushion.

  When the vehicle collides from this state, the occupant inertially moves in the direction in which the inertial force acts. On the other hand, in the event of a vehicle collision, the buckle pretensioner mechanism operates to tilt the buckle device downward from the initial standing position. Thereby, the restraint position of the waist of the occupant by the lap webbing is lowered, and the occupant restraint performance by the lap webbing is improved. As a result, sinking of the lumbar region of the occupant is suppressed, and the submarine phenomenon that occurs at the time of a vehicle collision is suppressed.

  By the way, there are cases where the hands of the occupant seated on the vehicle seat at the time of traveling the vehicle are placed at the peripheral portion in the seat width direction of the seat cushion. Under this condition, when the vehicle collides, the buckle device is pivoted in the longitudinal direction of the seat around the support shaft by the pretensioner mechanism, and is tilted downward. As a result, the occupant's finger may be pinched between the buckle device and the peripheral portion of the seat cushion.

  However, according to the present invention, the pinching suppression means is provided on the side portion of the seat cushion opposite to the movable area of the buckle device when the buckle pretensioner mechanism is activated. For this reason, pinching of the occupant's finger between the peripheral portion of the seat cushion in the seat width direction and the buckle device is suppressed.

  As described above, the occupant restraint system according to the first aspect of the present invention can suppress the submarine phenomenon that occurs at the time of a vehicle collision, and can prevent the finger of the occupant from turning the buckle device in the inertial movement direction of the occupant. It has the excellent effect of being able to suppress the pinching of

FIG. 2 is a side view showing the occupant restraint system according to the first embodiment, with a part of a skin of a seat cushion of a vehicle seat cut away. It is a top view of the vehicle seat shown by FIG. (A) is a partial expanded sectional view which expands and shows the state cut | disconnected along line 3-3 of FIG. 1 in the state before the buckle pretensioner mechanism of the vehicle seat shown by FIG. 1 operate | moves, 1, (B) is a partial enlarged cross-sectional view showing a state of being cut along line 3-3 in FIG. 1 in a state after the buckle pretensioner mechanism of the vehicle seat shown in FIG. 1 is operated. is there. FIG. 4A is a side view corresponding to FIG. 1 showing the occupant restraint system according to the second embodiment with a part of a seat cushion of a vehicle seat cut away; FIG. 4B is a side view 4B is a partially enlarged cross-sectional view showing a state of being cut along line 4B-4B. (A) is a top view corresponding to FIG. 2 which cuts out and shows a part of seat cushion of a vehicle seat according to the passenger restraint device concerning a 3rd embodiment, and (B) shows FIG. 5 (A) 5B is a partially enlarged cross-sectional view showing a state of being cut along line 5B-5B of FIG. FIG. 6A is a side view corresponding to FIG. 1, showing the occupant restraint system according to the fourth embodiment with a part of a seat cushion of a vehicle seat cut away, and FIG. 6B is a partially enlarged cross-sectional view showing a state of being cut along line 6B-6B of FIG. (A) is a side view corresponding to FIG. 1 which shows the passenger restraint device which concerns on 5th Embodiment, (B) expands the state which cut | disconnected along the 7B-7B line of FIG. 7 (A). FIG. 6 is a partial enlarged cross-sectional view of FIG.

First Embodiment
The occupant restraint system 10 according to the first embodiment will be described below with reference to FIGS. 1 to 3. In addition, the arrow FR suitably shown in these figures has shown the vehicle front side, the arrow UP has shown the vehicle upper side, and arrow RH has shown the vehicle right side. In the following description, when simply using front and rear, upper and lower, and left and right directions, unless otherwise noted, the left and the right in the front and rear directions of the vehicle, up and down in the vehicle vertical direction, and the traveling direction are indicated. Moreover, the seat front-rear direction of the vehicle seat 11 described later coincides with the vehicle front-rear direction, and the seat width direction of the vehicle seat 11 coincides with the vehicle width direction. In the present embodiment, the direction of the vehicle and the direction of the seat are the same unless otherwise noted.

    (Whole configuration of the present embodiment)

  As shown in FIG. 1, the occupant restraint system 10 includes a three-point seat belt device 20 for restraining an occupant P seated on a seat cushion 12 of a vehicle seat 11 and a seat cushion 12 of the vehicle seat 11. It is comprised by the recessed part 50 mentioned later provided in the side part 46A of sheet | seat width direction inner side. First, the overall configuration of the vehicle seat 11 and the seat belt device 20 will be described in this order.

  As shown in FIG. 1 and FIG. 2, the vehicle seat 11 is tiltably supported by the seat cushion 12 that supports the waist L and the thigh D of the seated occupant P and the rear end of the seat cushion 12. The seatback 14 supports the back B of the occupant P, and the headrest 16 (see FIG. 2) provided at the upper end of the seatback 14 to support the head H of the occupant P. In FIGS. 1 and 2, the driver's seat of the right-hand drive vehicle is depicted.

  A three-point seat belt device 20 is disposed around the vehicle seat 11. The seat belt device 20 includes a webbing 22 for restraining an occupant P seated on the seat cushion 12, a tongue plate 24 supported in a state inserted through the webbing 22, and a buckle device 26 engaged with the tongue plate 24. It is composed of

  The webbing 22 is a non-stretchable belt-like member for restraining the occupant P seated on the vehicle seat 11. One end portion of the webbing 22 is engaged with a webbing retractor (not shown) disposed at the lower portion of the center pillar disposed outside in the seat width direction of the vehicle seat 11. Further, the other end of the webbing 22 is fixed to an anchor member attached to a vehicle body floor (not shown) on the outer side of the vehicle seat 11 in the seat width direction. Furthermore, the middle portion of the webbing 22 is inserted into and folded around a shoulder anchor (not shown) disposed above the center pillar.

  A tongue plate 24 is inserted through a portion of the webbing 22 from a shoulder anchor to an anchor member, and a portion on the seat upper side of the tongue plate 24 restrains the shoulder S and the chest C of the occupant P It is considered as a section 22A. On the other hand, a portion on the seat lower side than the tongue plate 24 is a lap webbing portion 22B for restraining the waist portion L of the occupant P. The lap webbing portion 22B corresponds to "lap webbing" in the present invention. Then, by engaging the tongue plate 24 with the buckle device 26 described below on the inner side in the seat width direction of the vehicle seat 11, the seated occupant P can be in the webbing mounted state of the three-point seat belt device 20.

  As shown in FIGS. 1 and 2, the buckle device 26 includes an engagement portion (not shown) engaged with the tongue plate 24 and a release portion (not shown) for releasing the engagement. The seat cushion 12 is obliquely disposed adjacent to the side portion 46A on the inner side in the seat width direction. The solid line illustrated position in FIG. 1 is the “initial standing position” of the buckle device 26. The buckle device 26 is supported by an anchor 30 disposed on the seat width direction inner side of the seat cushion 12 and on the seat rear side with respect to the buckle device 26 via a support shaft 32 and a connection member 28.

  The anchors 30 are fixed to the inner side in the seat width direction of the seat cushion frame 18 which is a frame member of the seat cushion 12. The anchor 30 may be fixed to a vehicle body floor (not shown) located on the inner side in the seat width direction of the seat cushion 12. The anchor 30 is provided with a support shaft 32 whose axial direction is in the sheet width direction, and the lower end portion of the long connecting member 28 is rotatably supported by the support shaft 32 in the seat longitudinal direction. There is. The connection member 28 is a metal plate-like member formed linearly along the insertion direction of the tongue plate 24 with respect to the buckle device 26 (see the dashed-dotted line L1 shown in FIG. 1). A buckle device 26 is fixed to the upper end of the connecting member 28. The connection member 28 may be configured using a wire, or may be configured such that a metal plate member and a wire are connected.

  Here, in addition to the above-described seat belt device 20, the vehicle seat 11 described above rotates the buckle device 26 around the support shaft 32 in the seat longitudinal direction at the time of a vehicle collision (front collision or front collision prediction). A buckle pretensioner mechanism 40 (hereinafter, also simply referred to as a "pretensioner mechanism 40") is provided which moves the buckle device 26 to tilt the buckle device 26 downward from the initial standing position.

  In the present embodiment, the pretensioner mechanism 40 is connected to the lower end portion of the connection member 28 and is operated by a controller (not shown) at the time of a vehicle collision (front collision or front collision prediction). The pretensioner mechanism 40 is internally provided with a gas generator (not shown), and when activated, gas is generated from the gas generator, and the connecting member 28 is rotated around the support shaft 32 toward the seat front side and the seat lower side. It is made to move. A stopper (not shown) is provided on the rotational direction side (counterclockwise in FIG. 1) of the connecting member 28. Therefore, the connecting member 28 is shown by a two-dot chain line from the solid line illustrated position (initially erected position) of FIG. It is configured to be pivoted to a position (buckle pull-in position). The connecting member 28 is held on the support shaft 32 at an arbitrary rotation angle by means such as frictional engagement, as an example.

  In FIG. 1, the positions of the buckle device 26 and the connecting member 28 before the operation of the pretensioner mechanism 40 described above are indicated by solid lines, and the positions of the buckle device 26 and the connecting member 28 after the operation of the pretensioner mechanism 40 are two. It is indicated by a dotted line. Further, a movement trajectory of the buckle device 26 extending from before to after actuation of the pretensioner mechanism 40 is indicated by a pair of curves L2, and a region between the pair of curves L2 is taken as a movable region OA of the buckle device 26. There is.

  As shown in this figure, in the state before the operation of the pretensioner mechanism 40, the buckle device 26 is disposed above the upper surface 12A of the seat cushion 12 in a side view along the seat width direction. For this reason, a gap 42 is formed between the buckle device 26 and the upper surface 12A of the seat cushion 12. On the other hand, in the state after actuation of the pretensioner mechanism 40, the buckle device 26 is disposed below the upper surface 12A of the seat cushion 12 in a side view along the seat width direction.

  Supplementally, in each drawing, a dummy (doll) for a collision test is shown seated on the seat cushion 12 of the vehicle seat 11 as a model of an occupant to be protected. The dummy (AM 50) is seated in a standard seating posture determined by the collision test method, and the vehicle seat 11 is located at a reference setting position corresponding to the seating posture. Hereinafter, the dummy is regarded as an occupant and is referred to as “occupant P”.

    (Main part of this embodiment)

  Next, the structure of the seat cushion 12 which is an essential part of the present embodiment will be described. As shown in FIG. 1, the seat cushion 12 includes a seat cushion pad 46 whose surface is covered by the skin 44 and the aforementioned seat cushion disposed on the seat lower side of the seat cushion 12 to support the seat cushion pad 46. And a frame 18.

  As shown in FIGS. 1 and 2, the seat cushion pad 46 is made of urethane or the like, and is a cushion member that elastically deforms to the seat lower side when the occupant P is seated. The seat cushion pad 46 is formed in a substantially rectangular shape in a plan view, and has a predetermined thickness in the vehicle vertical direction. A recess 50 recessed toward the center in the seat width direction is formed at the upper edge of the side portion 46A on the inner side in the seat width direction of the seat cushion pad 46.

  Describing in detail, as shown in FIGS. 3A and 3B, the recess 50 is an upper edge portion of the side portion 46A on the inner side in the seat width direction of the seat cushion pad 46 and is along the seat width direction. It is formed in the position (range) which opposes (overlaps) movable area OA of the buckle apparatus 26 mentioned above by side view. Therefore, the recess 50 is not formed over the entire length of the upper edge of the side portion 46A on the inner side in the seat width direction of the seat cushion pad 46, but is partially provided in the middle portion in the seat longitudinal direction. The recess 50 is formed in a substantially U shape opening toward the upper side of the sheet in a side view along the sheet width direction, and is open in two directions, the upper side of the sheet and the inner side in the sheet width direction. . In addition, the recessed part 50 is corresponded to the "sandwiching suppression means" in this invention.

(Action and effect)
Next, the operation and effects of the first embodiment will be described.

  After the occupant P is seated on the seat cushion 12 of the vehicle seat 11, the occupant P pulls out the webbing 22 of the seat belt device 20 to engage the tongue plate 24 with the buckle device 26. As a result, the occupant P is in the webbing mounted state.

  Here, in the present embodiment, at the time of a vehicle collision (at the time of a frontal collision or a frontal collision prediction), the buckle pretensioner mechanism 40 operates to rotate the buckle device 26 around the pivot 32 in the seat longitudinal direction The device 26 is inclined from the initial standing position to the seat lower side. Therefore, the restraint position of the waist portion of the occupant P by the lap webbing portion 22B in the webbing 22 is lowered, and the occupant restraint performance by the lap webbing portion 22B is improved. As a result, the sinking of the waist L of the occupant P is suppressed, and the submarine phenomenon that occurs at the time of a vehicle collision can be suppressed.

  By the way, as shown in FIG. 3A, the hand T of the occupant P who is seated on the vehicle seat 11 when the vehicle is traveling may be placed at the peripheral portion in the seat width direction of the seat cushion 12. Under this condition, when a vehicle collision occurs, the buckle device 26 is turned in the seat longitudinal direction around the support shaft 32 by the pretensioner mechanism 40, and is tilted downward. As a result, the finger T-1 of the occupant P may be pinched between the buckle device 26 and the peripheral portion of the seat cushion 12.

  However, according to the structure of the vehicle seat 11 described above, the recess 50 is provided on the side portion of the seat cushion 12 opposed to the movable area OA of the buckle device 26 when the buckle pretensioner mechanism 40 is activated. Therefore, when the finger T-1 of the occupant P is pressed downward by the buckle device 26, the skin 44 covering the surface of the recess 50 deforms along the shape of the recess 50, and the sheet width direction of the buckle device 26 A space 52 is formed between the outer side surface and the side surface of the seat cushion opposed to the outer side surface (see FIG. 3 (B)). As a result, the finger T-1 pressed to the seat lower side by the buckle device 26 is accommodated in the space 52, and it is suppressed that the finger T-1 is pinched between the buckle device 26 and the seat cushion 12 it can.

  Further, since the surface of the recess 50 is covered with the skin 44, the appearance of the vehicle seat 11 is not visually recognized. Therefore, restrictions on the design given to the vehicle seat 11 can be reduced.

  Further, in the present embodiment, since the recess 50 is formed in the seat cushion pad 46, the finger T-1 of the occupant P can be protected with a simple and inexpensive configuration.

Second Embodiment
The occupant restraint system 60 according to the second embodiment will be described below with reference to FIGS. 4 (A) and 4 (B). The same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 4A and 4B, in the second embodiment, the side portion 46A on the inner side in the seat width direction of the seat cushion pad 46 has a substantially rectangular shape in a side view along the seat width direction. It is characterized in that the recess 62 is formed. In addition, the recessed part 62 is corresponded to the "sandwich suppression means" which concerns on this invention.

As shown in this figure, the recess 62 is formed in a portion facing the movable area OA of the buckle device 26 in the side portion 46A on the inner side in the seat width direction of the seat cushion pad 46, and in the side view along the seat width direction. The sheet is formed in a substantially rectangular shape with the longitudinal direction of the sheet as the longitudinal direction. Further, as shown in FIG. 4B, the cross section along the sheet width direction of the recess 62 is substantially U-shaped opened on the left side (buckle device 26 side) in the sheet width direction. A thin portion 64 is formed by the seat cushion pad 46 covering the seat upper side of the recess 62. The thin portion 64 is more easily elastically deformed to the seat lower side than the other portions in the seat cushion pad 46. It has become.

    (Action / effect)

  According to the above configuration, when the pretensioner mechanism 40 operates with the finger T-1 of the occupant P in the gap 42, the finger T-1 is pressed downward by the buckle device 26. Then, the thin portion 64 is pressed downward in the sheet by the finger T-1 (see arrow Q1 shown in FIG. 4B), and the thin portion 64 is deformed along with the skin 44 into a shape along the recess 62. Thereby, a space is formed between the sheet width direction outer side surface of the buckle device 26 and the side surface of the seat cushion opposed to the outer side surface, and the finger T-1 can be accommodated in the space. As a result, pinching of the finger T-1 between the buckle device 26 and the seat cushion 12 can be suppressed.

  Furthermore, according to the above configuration, the corner portion formed by the upper surface 12A of the seat cushion 12 and the left side surface in the sheet width direction by the thin portion 64 formed on the seat upper side of the recess 62 is the movable region of the buckle device 26 It is also maintained on the side opposite to the OA. For this reason, the appearance design of the seat cushion 12 is excellent. Furthermore, even if the seat upper side of the recess 62 is pressed except in the scene where the pretensioner mechanism 40 operates, the thin portion 64 can be prevented from remaining in a deformed state of the skin 44, and high designability can be achieved. You can keep it.

Third Embodiment
The occupant restraint system 70 according to the third embodiment will be described below with reference to FIGS. 5 (A) and 5 (B). The same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 5A and 5B, in the third embodiment, a substantially rectangular recess 72 is formed on the upper surface 46B of the seat cushion pad 46 so as to project downward from the seat. It is characterized by In addition, the recessed part 72 is corresponded to the "sandwich suppression means" which concerns on this invention.

  As shown in this figure, the recess 72 is formed at the inner end of the upper surface 46B of the seat cushion pad 46 in the seat width direction, and is formed in a rectangular shape whose longitudinal direction is the sheet longitudinal direction in plan view There is. The cross section along the sheet width direction of the concave portion 72 is substantially U-shaped opened on the upper side of the sheet. Further, the concave portion 72 is formed at a portion overlapping with the movable area OA of the buckle device 26 in a side view along the sheet width direction. A thin portion 74 is formed by the seat cushion pad 46 disposed on the left side in the seat width direction of the concave portion 72, and the thin portion 74 is on the right side in the seat width direction compared with other portions in the seat cushion pad 46. It is easy to be elastically deformed.

    (Action / effect)

  According to the above configuration, when the pretensioner mechanism 40 operates with the finger T-1 of the occupant P entering the gap 42, the buckle device 26 causes the finger T-1 to move downward and outward in the seat width direction. It is pressed. Then, the thin portion 74 is pressed outward in the sheet width direction by the finger T-1 (see arrow Q2 shown in FIG. 5B), and the thin portion 74 deforms with the skin 44 into a shape along the recess 72. . Thereby, a space is formed between the sheet width direction outer side surface of the buckle device 26 and the side surface of the seat cushion opposed to the outer side surface, and the finger T-1 can be accommodated in the space. As a result, pinching of the finger T-1 between the buckle device 26 and the seat cushion 12 can be suppressed.

  In addition, the same effects as those of the first and second embodiments described above can be achieved.

Fourth Embodiment
The occupant restraint system 80 according to the fourth embodiment will be described below with reference to FIGS. 6 (A) and 6 (B). The same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 6A and 6B, in the fourth embodiment, the recess 50 is formed in the side portion 46A on the inner side in the seat width direction of the seat cushion pad 46 as in the first embodiment described above, It is characterized in that a separate cushion body 82 is disposed between the recess 50 and the skin 44. In addition, the said recessed part 50 and the cushion body 82 correspond to "the pinching suppression means" which concerns on this invention.

  As shown in this figure, the cushion body 82 is formed in a substantially rectangular parallelepiped shape so as to follow the shape of the recess 50. The cushion body has a hardness lower than that of the seat cushion pad 46, and is formed of a cushion member that elastically deforms. And as shown in FIG. 6 (B), it is arrange | positioned so that the space between the recessed part 50 and the outer_skin | epidermis 44 may be filled.

(Action / effect)
According to the above configuration, when the pretensioner mechanism 40 operates with the finger T-1 of the occupant P entering the gap 42, the buckle device 26 causes the finger T-1 to move downward and outward in the seat width direction. It is pressed. Then, the cushion body 82 is pressed by the finger T-1 and is deformed with the skin 44 into a shape along the recess 50. Thereby, a space is formed between the sheet width direction outer side surface of the buckle device 26 and the side surface of the seat cushion opposed to the outer side surface, and the finger T-1 can be accommodated in the space. As a result, pinching of the finger T-1 between the buckle device 26 and the seat cushion 12 can be suppressed.

  In addition, the same effects as those of the first and second embodiments described above can be achieved.

Fifth Embodiment
The occupant restraint system 90 according to the fifth embodiment will be described below with reference to FIGS. 7 (A) and 7 (B). The same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 7A and 7B, in the fifth embodiment, the seat cushion pad 46 is erected above the seat between the side portion in the seat width direction and the buckle device 26. It is characterized in that a plate 92 is provided. Note that the plate 92 corresponds to the "entrapment suppressing means" according to the present invention.

  As shown in this figure, the plate 92 is formed in a plate shape, and is disposed on the inner side in the seat width direction of the seat cushion 12 so as to face the movable area OA of the buckle device 26. It is done. Specifically, the lower end portion is fixed to the seat cushion frame 18 at the inner side of the seat cushion 12 in the seat width direction. In addition, the said fixed position is made into the sheet | seat front side rather than the anchor 30. FIG. On the other hand, the upper end portion of the plate 92 has a substantially semicircular shape which is convex upward of the seat. The upper end (apex) of the plate 92 is disposed above the upper surface 12A of the seat cushion 12 and below the upper end of the buckle device 26 before the pretensioner mechanism 40 is actuated. It is assumed that the mounting performance of the buckle device 26 is not impaired. Furthermore, in a side view along the seat width direction, the plate 92 covers the gap 42 between the buckle device 26 and the upper surface 12A of the seat cushion 12.

(Action / effect)
According to the above configuration, the gap 92 between the buckle device 26 and the upper surface 12A of the seat cushion 12 is covered with the plate 92 in a side view along the seat width direction. Thus, the finger T-1 of the occupant P is prevented from entering the gap 42, and the finger T-1 of the occupant P is sandwiched between the buckle device 26 and the seat cushion 12 when the pretensioner mechanism 40 is operated. Can be prevented.

  In addition, since the buckle device 26 and the finger T-1 of the occupant P do not interfere with each other when the pretensioner mechanism 40 is activated, the occupant is compared with the other embodiments in which the finger T-1 of the occupant P is pressed by the buckle device 26. The load on the finger T-1 of P can be reduced.

  In addition, since the upper end portion of the plate 92 is formed in a substantially semicircular shape that is convex toward the upper side of the seat, there is no corner portion in a portion where the body of the occupant P can interfere. The feeling of pleasure is suppressed.

  In each of the above-described embodiments, the vehicle seat 11, 60, 70, 80, 90 is configured as the driver's seat of the vehicle with the right handle, but the present invention is not limited to this, and driving of the vehicle with the left handle is possible. It may be a seat, or may be a passenger seat or a rear seat.

  Moreover, in each embodiment mentioned above, although the buckle apparatus 26 was arrange | positioned at the side part of the sheet | seat width direction inner side in the seat cushion 12, this invention is not limited to this, The buckle apparatus 26 is the sheet | seat width direction outer side in the seat cushion 12. It may be disposed on the side. Also, as a matter of course, the “entrapment suppressing means” according to the present invention is appropriately changed in accordance with the position of the buckle device 26.

  Further, in the first to third embodiments described above, the skin 44 is disposed so as to cover the respective recesses 50, 62, 72 formed in the seat cushion pad 46, and in appearance the respective recesses 50, 62, 72 However, the present invention is not limited to this. The skin 44 may be formed to conform to the shapes of the respective recesses 50, 62, 72, and the respective recesses 50, 62, 72 may be formed on the appearance of the seat cushion 12.

10 Occupant restraint device 12 Seat cushion 22B Lap webbing portion (lap webbing)
24 tongue plate 26 buckle device 32 support shaft 40 buckle pretensioner mechanism 50 recessed portion (trapping control means)
60 Occupant restraint device 62 Recess (relief means)
70 Occupant restraint device 72 Recess (relief means)
80 Passenger Restraint Device 82 Cushion Body (Pinching Suppression Means)
90 Occupant restraint device 92 Plate (trap control means)
P passenger T-1 finger OA movable area

Claims (1)

Wrap webbing for restraining the waist of a passenger seated on a seat cushion;
A tongue plate supported by the lap webbing;
A buckle device disposed inside the seat cushion in the seat width direction and rotatably supported about the support shaft in the seat longitudinal direction and engaging the tongue plate to restrain the occupant's waist with the lap webbing When,
A buckle pretensioner mechanism which, when actuated, causes the buckle device to rotate in the seat longitudinal direction about the pivot to tilt the buckle device from the initial standing position toward the vehicle lower side;
The seat cushion is provided on a side opposite to the movable area of the buckle device when the buckle pretensioner mechanism is activated, and prevents an occupant's finger from being pinched between the side and the buckle device. Pinch control means,
Occupant restraint device having.