JP2007210435A - Air belt device for vehicle - Google Patents

Abstract

An object of the present invention is to inflate an inflating portion at least to the side of the head of an occupant at the time of a side collision without depending on the longitudinal position of a vehicle seat.
The occupant restraining webbing 16 can be guided by a belt guide 22 held at a first position P1 when the inflating portion 18 is not inflated. Further, when the inflating portion 18 is inflated due to a side collision, the belt guide moving means 24 moves the belt guide 22 to the second position P2 close to the head 14H of the occupant 14, thereby causing the occupant restraining webbing 16 to move to the head. Since it is drawn to the portion 14H, the inflating portion 18 provided on the occupant restraining webbing 16 inflates corresponding to at least the side of the head 14H of the occupant 14. Since the positional relationship between the occupant 14 and the belt guide 22 is constant regardless of the front-rear position of the vehicle seat 12, the inflatable portion 18 is connected to at least the head 14 </ b> H of the occupant 14 at the time of a side collision without depending on the front-rear position. Can be expanded laterally.
[Selection] Figure 1

Description

  The present invention relates to a vehicle air belt device.

The shoulder anchor for guiding the occupant restraint webbing provided with the inflating part is set to a height position that does not face the occupant's head side in normal times, and to the side of the occupant's head during a side collision. An air belt device provided with a height position control means for setting to an opposing position is disclosed (see Patent Document 1).
JP 2001-239906 A

  However, as in the conventional example described above, the positional relationship between the occupant and the shoulder anchor is determined by adjusting the height position of the shoulder anchor so that the inflating portion faces the side of the head and neck of the occupant. Since it changes depending on the longitudinal position of the seat, it has been difficult to control the inflatable part so as to correspond to the side of the head or neck of the occupant.

  In view of the above facts, an object of the present invention is to inflate an inflating portion at least to the side of the head of an occupant at the time of a side collision without depending on the front-rear position of the vehicle seat.

  The invention according to claim 1 is provided in an occupant restraining webbing corresponding to an occupant's chest, an inflating part which is provided on the occupant restraining webbing and which expands at least above the shoulder part of the occupant when inflated, and a vehicle seat. A belt guide for guiding the occupant restraining webbing, and the belt guide is held in a first position when the inflating part is not inflated, and the inflating part is at least laterally of the head of the occupant when the inflating part is inflated. Belt guide moving means for moving the belt guide to a second position closer to the head than to the first position.

  In the vehicle air belt device according to the first aspect, the belt guide is held at the first position when the inflating portion is not inflated, that is, during normal use, and the occupant restraining webbing can be guided by the belt guide. Further, when the inflating portion is inflated due to a side collision, the belt guide moving means moves the belt guide to the second position close to the head of the occupant, thereby pulling the occupant restraining webbing toward the head. The inflatable portion provided on the webbing for inflating corresponds to at least the side of the head of the occupant. Since the positional relationship between the occupant and the belt guide is constant regardless of the front-rear position of the vehicle seat, in the vehicle air belt device according to claim 1, the side collision occurs without depending on the front-rear position of the vehicle seat. Sometimes the inflatable part can be inflated at least to the side of the occupant's head.

  According to a second aspect of the present invention, in the vehicular inflatable belt device according to the first aspect, the belt guide moving means fixes the belt guide to the first position when the inflating portion is not inflated, and the inflating portion expands. A fixing means for releasing the fixing state; a moving force generating means for applying a moving force from the first position to the second position on the belt guide after the fixing state by the fixing means is released; It is characterized by having.

  In the vehicle air belt apparatus according to claim 2, the belt guide is fixed to the first position by the fixing means in the belt guide moving means when the inflating portion is not inflated, and the occupant restraining webbing is guided by the belt guide. can do. Further, the fixed state of the belt guide by the fixing means is released by the expansion of the expansion portion, and the moving force generated from the moving force generating means acts on the belt guide released from the fixed state. By moving the belt guide from the first position to the second position by this moving force, the inflating portion can be inflated at least to the side of the head of the occupant.

  According to a third aspect of the present invention, in the vehicular airbelt device according to the second aspect, the belt guide is configured to be movable from the first position to the second position by rotating about a predetermined rotation center. The moving force generating means is an inertia weight body that generates a couple around the rotation center with respect to the belt guide by an inertial force at the time of a side collision.

  The air belt device for a vehicle according to claim 3 is configured such that when the belt guide moves from the first position to the second position, the belt guide rotates about a predetermined center of rotation. Coupled force around the rotation center is generated with respect to the belt guide by the inertial force of the body, and the belt guide is rotated about the rotation center by the couple force, so that the belt guide moves from the first position to the second position. That is, in the vehicle air belt device according to claim 3, the belt guide is moved from the first position to the second position using the inertia force at the time of the collision, so that the inflating portion is located at least on the side of the occupant's head. Can be expanded.

  As described above, according to the vehicle airbelt device of the first aspect of the present invention, the inflatable portion is disposed at least on the side of the head of the occupant during a side collision without depending on the front-rear position of the vehicle seat. An excellent effect is obtained that it can be expanded to the right.

  According to the air belt device for a vehicle according to claim 2, the belt guide is moved from the first position to the second position by the moving force generated by the moving force generating means, whereby the inflating portion is at least on the head side of the occupant. An excellent effect that it can be expanded in the direction is obtained.

  According to the air belt device for a vehicle according to claim 3, the inflating portion is moved at least to the side of the head of the occupant by moving the belt guide from the first position to the second position using the inertia force at the time of the collision. An excellent effect is obtained that it can be expanded to the right.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
In FIG. 1, a vehicle air belt device 10 according to the present embodiment is a kind of seat belt for restraining an occupant 14 seated on a vehicle seat 12, and includes an occupant restraining webbing 16, an inflating portion 18, and a belt. A guide 22 and belt guide moving means 24 are provided.

  The vehicle seat 12 is, for example, a bucket type seat, and includes a seat cushion (not shown) on which the occupant 14 is seated and a seat back 26 that supports the back of the occupant 14. The seat back 26 includes a headrest portion 28, a side support portion 30 that supports, for example, a waist portion (not shown) of the occupant 14 in the vehicle width direction, and a side support portion 32 that supports the shoulder portion 14S of the occupant 14 in the vehicle width direction. Are integrally provided. As shown in FIG. 1, between the headrest portion 28 and the left and right side support portions 32, for example, inclined portions 34 and 36 spreading in a skirt shape when viewed from the front of the vehicle are integrally provided, and the belt guide 22 and the belt guide movement are provided. The means 24 is provided, for example, on the inclined portion 34 on the outer side in the vehicle width direction.

  A lap belt anchor is provided on the outer side of the seat cushion, and a buckle device (not shown) is provided on the center side of the seat cushion. The position where the lap belt anchor and the buckle device are provided is not limited to the seat cushion, and may be on the floor panel side, for example. In the buckle device or outside the buckle device, for example, an inflator (not shown) that is a gas supply source for the inflating portion 18 is disposed. The inflator is activated when, for example, a side collision is detected by a side collision sensor (not shown) or when a side collision is predicted by a pre-crash sensor (not shown).

  When the inflating portion 18 is also made to correspond to the chest 14B of the occupant 14, the inflator is activated even when a frontal collision is detected or predicted. In this case, a front-impact inflator and a side-impact inflator may be used separately, or a single inflator with variable output may be used.

  The occupant restraining webbing 16 is a belt-like member corresponding to the chest 14B of the occupant 14, and is configured to be wound around, for example, a retractor (not shown) disposed on the upper back panel of the vehicle body. Sometimes, the occupant 14 can be pulled out of the retractor according to the physique of the occupant 14, and the occupant restraining webbing 16 is guided by the belt guide 22. The occupant restraining webbing 16 pulled out from the retractor is guided by a belt guide 22 provided on the side of the headrest portion 28 on the outer side in the vehicle width direction and is routed to the front side of the seat back 26. Yes.

  The occupant restraining webbing 16 is provided with a tongue plate (not shown) configured to be fitted into the buckle device, and when the tongue plate is fitted into the buckle device, the inflator is moved from the buckle device side to the inflating portion 18. The gas from can be supplied.

  The inflatable portion 18 is a bag body provided on the occupant restraining webbing 16 and folded so as to expand at least above the shoulder portion 14S of the occupant 14 when inflated. Specifically, the inflatable portion 18 is folded in a belt shape equivalent to the occupant restraining webbing 16, and is covered with, for example, a stretchable mesh webbing (not shown) and further covered with a cover (not shown). In other words, it is sewn in a band shape by using a control sewing, that is, a so-called tear seam that breaks when the internal pressure of the inflating portion 18 exceeds a certain level. The deployment area of the inflatable part 18 is not limited to the upper part of the shoulder part 14S of the occupant 14, but may be inflated corresponding to the chest part 14B.

  As shown in FIG. 2, the belt guide 22 is a guide member for guiding the occupant restraining webbing 16 provided on, for example, an inclined portion 34 on the outer side in the vehicle width direction of the vehicle seat 12. For example, when viewed from the front of the vehicle, the lower side 22D and the upper side 22U are separated from each other substantially in parallel, the lower side 22D and the upper side 22U are connected to each other at the outer end 22E in the vehicle width direction, and the lower side 22D and the upper side are connected at the inner end in the vehicle width direction. The cut line 22C is formed without being connected to 22U. The end portion 22E of the belt guide 22 is deformed, for example, to be plastically deformed when a force exceeding a certain level is applied so that the lower side 22D and the upper side 22U are opened around the end portion 22E by the expansion pressure when the expansion portion 18 is expanded. It is configured as a possible part. In addition, since the maximum opening degree of the belt guide 22 is limited, the inflating portion 18 is inflated widely in the width direction.

  During normal use, the belt guide 22 is disposed substantially parallel to the slide rail 38 of the belt guide moving means 24, for example, and the occupant restraining webbing 16 is passed between the lower side 22D and the upper side 22U through the cut 22C. The passenger restraining webbing 16 can be guided.

  An arm 40 extending into the slide rail 38 of the belt guide moving means 24 is provided on the lower side 22D on the end 22E side of the belt guide 22, and the end 40A of the arm 40 is substantially circular when viewed from the front of the vehicle. For example, it is formed in a columnar shape or a spherical shape, and a concave portion 40B that can be engaged with a small protrusion-like stopper 42 as an example of a fixing means provided on the upper inner surface 38A of the slide rail 38 is provided on the outer peripheral surface thereof. . A state in which the concave portion 40B is engaged with the stopper 42 and the belt guide 22 is disposed substantially parallel to the slide rail 38 is a normal use state.

  The belt guide moving means 24 holds the belt guide 22 at the first position P1 when the inflating portion 18 is not inflated, and causes the inflating portion 18 to correspond to at least the side of the head 14H of the occupant 14 when the inflating portion 18 is inflated. In this way, the belt guide 22 is moved to the second position P2 closer to the head 14H than the first position P1, and the moving force from the first position P1 to the second position P2 acts on the belt guide 22. For example, a compression coil spring 44 is used as the moving force generating means. As shown in FIG. 1, the first position P1 is a position suitable for the occupant 14 to wear the occupant restraining webbing 16 when the inflating portion 18 is not inflated, that is, during normal use, and the second position P2 is The inflatable portion 18 is a position suitable for inflating corresponding to at least the side of the head 14H of the occupant 14. For this reason, the second position P2 is closer to the head 14H than the first position P1, and is set higher than the first position P1 in the present embodiment.

  Specifically, the belt guide moving means 24 includes a slide rail 38 provided on the inclined portion 34 on the vehicle width direction outer side of the vehicle seat 12 so that the longitudinal direction is the moving direction of the belt guide 22, and the slide A compression coil spring 44 having a base end portion 44A in contact with an end portion on the first position P1 side in the rail 38, and between a distal end 44B of the compression coil spring 44 and an end portion 40A of the arm 40, is provided. And a spring retainer 46 that transmits an urging force from the compression coil spring 44 to the end portion 40A. On the upper inner surface 38A of the slide rail 38, there is a stopper 42 as an example of a fixing means for fixing the belt guide 22 to the first position P1 when the inflating portion 18 is not inflated and releasing the fixing state by the inflating of the inflating portion 18. Is provided. Further, in the longitudinal direction of the slide rail 38, an opening 38B through which the arm 40 passes is provided.

  The stopper 42 is a small protrusion, for example, a semi-cylindrical shape or a hemispherical shape, which is fixed to the upper inner surface 38A of the slide rail 38 and protrudes downward, for example, and the belt guide 22 is in the first position P1. The arm 40 is engaged with the recess 40B of the end 40A. When the belt guide 22 is in the first position P1, that is, during normal use, the compression coil spring 44 is pressed by the spring retainer 46 that is in contact with the end portion 40A of the arm 40 and contracted from the natural length. It is in the state that was. Even in this state, the end portion 40A is urged by the compression coil spring 44, but the engagement strength between the stopper 42 and the end portion 40A is stronger than the urging force so that the engagement is not released in the normal use state. It has become.

  In this way, the belt guide 22 is biased in the direction toward the second position P2, that is, in the direction of the arrow A by the compression coil spring 44 during normal use, and when the fixed state by the stopper 42 is released, the belt guide 22 is released. Can be pushed out toward the second position P2. The position of the stopper 42 in the longitudinal direction of the slide rail 38 is determined in consideration of the biasing force of the coil spring 44 necessary for instantaneously moving the belt guide 22 from the first position P1 to the second position P2. Therefore, the position is not limited to the illustrated position. If the belt guide 22 is exposed, the slide rail 38 may be embedded in the inclined portion 34.

(Function)
In FIG. 2, in the vehicle air belt device 10, the belt guide 22 is held at the first position P <b> 1 in the belt guide moving means 24 by the stopper 42 when the inflating portion 18 is not inflated, that is, during normal use. Thus, the occupant restraining webbing 16 can be guided without depending on the front-rear position of the vehicle seat 12. As shown in FIG. 1, when the belt guide 22 is in the first position P1, the height position of the belt guide 22 is low and the belt guide 22 is appropriately separated from the head 14H. The handling position of the restraining webbing 16 becomes good.

  In a state where the occupant restraining webbing 16 is mounted, when the vehicle receives a side collision from the occupant seating side of the vehicle or when such a side collision is predicted, the inflator is actuated, as shown in FIG. 18 begins to expand. Then, due to the expansion pressure, the upper side 22U and the lower side 22D of the belt guide 22 begin to open with the end 22E as a fulcrum, and the belt guide 22 that is substantially parallel to the slide rail 38 is centered on the end 40A of the arm 40. Start to get up as. When the end 40A rotates within the slide rail 38 as the belt guide 22 rises, the stopper 42 and the recess 40B are disengaged, thereby releasing the fixed state of the belt guide 22 by the stopper 42. . In other words, the fixed state of the belt guide 22 by the stopper 42 is released by the expansion of the expansion portion 18, and the urging force of the compression coil spring 44 moves the belt guide 22 to the belt guide 22 released from the fixed state, that is, Acts as a moving force.

  When the fixed state is released, the compression coil spring 44 that has been in the compressed state is stretched at once, and the urging force causes the end 40A of the arm 40 to be guided by the slide rail 38 and from the first position P1 to the second position. It is pushed out instantaneously in the direction of arrow A to position P2 (FIG. 4). When the belt guide 22 is guided by the slide rail 38 and instantaneously moves from the first position P1 to the second position P2, the occupant restraining webbing 16 guided by the belt guide 22 as shown in FIG. The inflating portion 18 is pushed upward and pulled toward the head 14H.

  As shown in FIG. 4, when the inflating portion 18 is inflated, the belt guide 22 opens around the end portion 22E due to the inflating of the inflating portion 18, but the maximum opening degree is limited. 18, the amount of expansion in the separation direction between the upper side 22 </ b> U and the lower side 22 </ b> D is small, for example, the amount of expansion in the length direction of the lower side 22 </ b> D is large. On the other hand, at the second position P2, the belt guide 22 is raised to such an extent that the longitudinal direction of the lower side 22D is close to, for example, the vehicle vertical direction. It will be in the state which expanded widely in the up-and-down direction of vehicles. In FIG. 1, the side of the head 14H and the neck 14N of the occupant 14 can be widely covered by the inflating part 18 that inflates widely in the vehicle vertical direction.

  In the vehicle air belt device 10, since the belt guide 22 is provided on the vehicle seat 12, the head 14H and the neck 14N of the occupant 14 are not affected by the front-rear position of the vehicle seat 12 and a side collision occurs. The expansion portion 18 can be expanded to a wide range in the vehicle vertical direction on the side, and the inertia force toward the outer side in the vehicle width direction of the head 14H can be absorbed by the expansion portion 18.

[Second Embodiment]
In FIG. 5, the vehicle air belt device 20 according to the present embodiment includes an occupant restraining webbing 16, an inflating portion 18, a belt guide 22, and a belt guide moving means 50.

  As shown in FIG. 6, in the belt guide moving means 50, the slide rail 48 is formed in an arc shape centering on a fulcrum 52 that is an example of a predetermined center of rotation provided below the slide rail 48. The end 40 </ b> A of the arm 40 in the slide rail 48 is connected to the fulcrum 52 by a link 54. The link 54 is provided so as to be rotatable with respect to the fulcrum 52, and is also connected to the end 40A of the arm 40 so as to be rotatable.

  Further, the fulcrum 52 is provided with a link 56 fixed to the link 54 and extending downward from the fulcrum 52, for example, and a inertia weight body 58 as an example of a moving force generating means is provided at the lower end of the link 56. Is provided. The inertia weight body 58 generates a couple of forces around the fulcrum 52 with respect to the belt guide 22 by the inertia force when a side collision occurs from the passenger side. As shown in FIG. 7, the direction of the couple is the direction in which the belt guide 22 is moved from the first position P1 to the second position P2, that is, the arrow M direction.

  The slide rail 48 is provided with an opening 48B for passing the link 54 in addition to an opening 48A for passing the arm 40.

  Since other parts are the same as those in the first embodiment, the same parts are denoted by the same reference numerals in the drawings, and description thereof is omitted.

(Function)
In FIG. 6, in the vehicle air belt device 20, the belt guide 22 is held at the first position P <b> 1 in the belt guide moving means 50 by the stopper 42 when the inflating portion 18 is not inflated, that is, during normal use. Thus, the occupant restraining webbing 16 can be guided without depending on the front-rear position of the vehicle seat 12. As shown in FIG. 5, when the belt guide 22 is in the first position P1, the height position of the belt guide 22 is low and the belt guide 22 is appropriately separated from the head 14H. The handling position of the restraining webbing 16 becomes good.

  In the state where the occupant restraining webbing 16 is mounted, when the vehicle receives a side collision from the occupant seating side of the vehicle or when such a side collision is predicted, the inflator is activated, and the inflating portion as shown in FIG. 18 begins to expand. Then, due to the expansion pressure, the upper side 22U and the lower side 22D of the belt guide 22 begin to open with the end portion 22E as a fulcrum, and the belt guide 22 that is in the state along the slide rail 48 is centered on the end portion 40A of the arm 40. Start to get up as. A link 54 is connected to the end portion 40 </ b> A. Since the end portion 40 </ b> A is rotatable with respect to the link 54, the belt guide 22 can be raised without being affected by the link 54. On the other hand, when a side collision is actually received from the occupant seating side, a couple of forces is generated around the fulcrum 52 with respect to the belt guide 22 via the links 56 and 54 due to the inertial force of the inertial weight body 58, that is, in the arrow M direction. As described above, when the end portion 40A rotates within the slide rail 48 as the belt guide 22 rises, and when a couple is generated with respect to the belt guide 22 due to the inertial force of the inertial weight body 58, the stopper 42 is provided. And the recess 40B are disengaged from each other, and the fixed state of the belt guide 22 by the stopper 42 is released. When the inflating portion 18 is inflated after actually receiving a side collision, the rising of the belt guide 22 and the generation of the couple due to the inertial force of the inertial weight body 58 proceed almost simultaneously.

  As shown in FIGS. 7 and 8, after the fixed state of the belt guide 22 by the stopper 42 is released, the belt guide 22 is centered on the fulcrum 52 in the direction of arrow M by a couple based on the inertial force of the inertial weight body 58. 5 and is guided by the slide rail 48 to move from the first position P1 to the second position P2. Therefore, as shown in FIG. 5, the occupant restraining webbing 16 and the inflating portion guided by the belt guide 22 are used. 18 is drawn to the head 14H. That is, in the vehicle air belt device 20, the belt guide 22 is moved from the first position P1 to the second position P2 by using the inertia force of the inertia weight body 58 at the time of the collision, so that the occupant restraining webbing 16 and the inflating portion. 18 can be pushed upward and pulled toward the head 14 </ b> H of the occupant 14.

  In FIG. 8, when the inflating portion 18 inflates, the belt guide 22 opens around the end portion 22 </ b> E due to the inflating of the inflating portion 18, but its maximum opening is limited. In the portion hanging on the guide 22, the expansion amount in the separation direction between the upper side 22U and the lower side 22D is small, for example, the expansion amount in the length direction of the lower side 22D is large. On the other hand, at the second position P2, the belt guide 22 is raised to such an extent that the longitudinal direction of the lower side 22D is close to, for example, the vehicle vertical direction. It will be in the state which expanded widely in the up-and-down direction of vehicles. Accordingly, in FIG. 5, the side of the head 14H and the neck 14N of the occupant 14 can be widely covered by the inflating portion 18 that inflates widely in the vehicle vertical direction.

  In the second embodiment, the inertia weight body 58 and other urging means may be used in combination as the moving force generating means. Specifically, for example, a torsion coil spring that urges the link 54 in the direction of arrow M may be provided at the fulcrum 52.

  In the first embodiment and the second embodiment, the stopper 42 is used as the fixing means, and the stopper 42 is engaged with the recess 40B of the end 40A of the arm 40 in the belt guide 22. The configuration is not limited, and any configuration may be used as long as the belt guide 22 can be fixed at the first position P1 when the inflating portion 18 is not inflated and the fixed state can be released by the inflating of the inflating portion 18.

  Further, as the moving force generating means, the compression coil spring 44 is used in the first embodiment and the inertia weight body 58 is used in the second embodiment. However, the present invention is not limited to this. For example, a cylinder device may be used. .

1 to 4 relate to the first embodiment, and FIG. 1 shows a state in which an occupant is seated on a vehicle seat and an occupant restraining webbing is mounted, that is, the belt guide is in the first position, and a side collision occurs. It is a front view which shows the state which the belt guide moved to the 2nd position and the expansion | swelling part is expanding to the side of a passenger | crew's head. In a belt guide moving means, it is sectional drawing which shows the state by which the belt guide was fixed to the 1st position with the stopper. In a belt guide moving means, it is sectional drawing which shows the state from which the belt guide began to rise by the expansion force of an expansion part, and the fixation by a stopper was cancelled | released by this. Due to the biasing force of the compression coil spring, the belt guide moves from the first position to the second position, the belt guide rises, and the inflating portion in which the amount of expansion in the vehicle width direction is limited by the belt guide expands widely in the vehicle vertical direction. It is sectional drawing which shows the state which is carrying out. FIGS. 5 to 10 relate to the second embodiment, and FIG. 5 shows a state in which an occupant is seated on a vehicle seat and an occupant restraining webbing is attached, that is, the belt guide is in the first position, and a side collision occurs. It is a front view which shows the state which the belt guide moved to the 2nd position and the expansion | swelling part is expanding to the side of a passenger | crew's head. In a belt guide moving means, it is sectional drawing which shows the state by which the belt guide was fixed to the 1st position with the stopper. FIG. 7 is a cross-sectional view showing a state in which the belt guide is started to be lifted and the belt guide starts to rise by at least one of an expansion force of an expansion portion and an inertia force of an inertial weight body in the belt guide moving unit. The belt guide is moved from the first position to the second position by the couple based on the inertial force of the inertial weight body, the belt guide is raised, and the inflatable portion in which the amount of expansion in the vehicle width direction is limited by the beltguide It is sectional drawing which shows the state expanded widely in the direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle air belt apparatus 12 Vehicle seat 14 Passenger 14B Chest 14H Head 16 Passenger restraining webbing 18 Expansion part 20 Vehicle air belt apparatus 22 Belt guide 24 Belt guide moving means 40B Concave part (fixing means)
42 Stopper (fixing means)
44 Compression coil spring (moving force generating means)
50 Belt guide moving means 58 Inertial weight body (moving force generating means)
P1 1st position P2 2nd position

Claims (3)

An occupant restraining webbing corresponding to the chest of the occupant,
An inflatable portion provided on the occupant restraining webbing and inflated at least above the shoulder of the occupant when inflated;
A belt guide provided on the vehicle seat for guiding the occupant restraining webbing;
The belt guide is held in the first position when the inflating portion is not inflated, and the belt guide is in the first position so that the inflating portion corresponds to at least the side of the head of the occupant when the inflating portion is inflated. Belt guide moving means for moving to a second position closer to the head than
A vehicular airbelt device comprising:   The belt guide moving means includes a fixing means for fixing the belt guide to the first position when the inflating portion is not inflated, and releasing the fixing state by inflating the inflating portion, and releasing the fixing state by the fixing means. The vehicular airbelt device according to claim 1, further comprising: a moving force generating unit that applies a moving force from the first position to the second position on the belt guide after being applied. The belt guide is configured to be movable from the first position to the second position by rotating around a predetermined rotation center,
3. The vehicle air belt device according to claim 2, wherein the moving force generating means is an inertia weight body that generates a couple around the rotation center with respect to the belt guide by an inertia force at the time of a side collision. .

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