JP2010137588A - Seat device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat device for a vehicle which is supported slidably in the longitudinal direction of the vehicle with respect to a floor panel, and equipped with a side support containing an airbag module at a side of a seat back including an airbag capable of appropriately functioning for an occupant of any body type. <P>SOLUTION: The vehicle seat device 1 includes a seat cushion 50 supported slidably in the longitudinal direction L of the vehicle with respect to the floor panel 100, the seat back 20 disposed behind the seat cushion 50, and the side support 30 disposed at the side of the seat back 20, wherein the side support 30 further includes the airbag module 81 for deploying the airbag 82 in the event of a collision, and the side support 30 is supported with respect to the seat back 20, via a vertically movable slide mechanism 40. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat device that is supported so as to be slidable in a vehicle front-rear direction with respect to a floor panel that forms a bottom surface of a passenger compartment, a side support is provided on a side portion of a seat back, and an airbag module is provided.

  The vehicle seat device is equipped with a seat cushion front / rear position, seat back reclining, and seat cushion seat height according to the occupant's body shape so that the occupant can take an appropriate driving posture. Etc. can be adjusted.

  In addition, there are many types of seat devices in which a side support for improving lateral holdability during turning is provided on the seat back, and the height of this side support can also be adjusted according to the occupant's body shape and preference Has been proposed (see Patent Document 1).

Furthermore, there is a seat apparatus that is equipped with a side airbag (so-called seat airbag) that bulges and protects the head of the occupant in a side collision, for example.
Japanese Utility Model Publication No. 62-87559

  However, in the case of the adjustable seat device as described above, by adjusting according to the body shape, the occupant can take an appropriate driving posture and perform safe driving, but the airbag is adapted to the occupant's body shape. It was not possible to adjust.

Therefore, in order to make an airbag function properly for passengers of all body types, it is necessary to equip an airbag of a predetermined size.
Specifically, in order to function properly for small occupants with a short height, an airbag that deploys at a low position close to the seat cushion is required, and functions appropriately for large occupants with a high height. Therefore, an airbag that is deployed at a high position away from the seat cushion is required.

  As described above, since the deployment position for proper functioning varies depending on the height of the occupant, the airbag functioning properly for all body types is from a low position close to the seat cushion to a high position away from the seat cushion. Therefore, it is necessary to provide a large airbag that covers the entirety of the airbag, and the airbag module that accommodates the large airbag is also large and heavy, making it difficult to reduce the weight and space.

  In addition, in order to deploy a large airbag, it is necessary to use a large amount of explosives to explode in the inflator and send the generated gas, and the deployment time for deploying the airbag is the size of the airbag. It was longer in proportion to the height.

Furthermore, when an airbag is rapidly deployed in a closed passenger compartment space, the air pressure in the passenger compartment space suddenly increases, but the effect of the increase in air pressure increases in proportion to the size of the airbag. It was.
For these reasons, there has been a demand for an airbag that functions appropriately for passengers of any body type while forming the airbag itself in a small size.

  Therefore, the present invention provides a vehicle seat apparatus that is supported so as to be slidable in the vehicle front-rear direction with respect to a floor panel that forms the bottom surface of the passenger compartment, and that a side support is provided on a side portion of the seat back and that an airbag module is provided. SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle seat device including an airbag that can function properly for passengers of any body type.

  The present invention relates to a seat cushion that is slidably supported in a vehicle longitudinal direction with respect to a floor panel that forms a bottom surface of a passenger compartment, a seat back provided at a rear portion of the seat cushion, and a side portion of the seat back. A vehicle seat device comprising an air bag module configured to deploy an air bag in the event of a collision, wherein the air bag module is disposed on the side support, and the side support is disposed on the seat. The back is supported through a slide mechanism that is movable in the vertical direction.

  According to the above configuration, the seat cushion can be adjusted to the front of the vehicle and the side support can be moved to an appropriate position in accordance with the occupant's body shape. Although there is a feeling, it is possible to provide a better sitting comfort without inappropriate restraint.

  Further, since the airbag module is arranged on the side support that can move to an appropriate position, the airbag can be deployed at an appropriate position according to the occupant's body shape.

  Therefore, since it can be deployed at a suitable position in accordance with the occupant's body shape, compared to an air bag sized to function properly for occupants of any body shape, it can function properly with a small airbag. .

  Therefore, compared with the case where a large airbag is provided, the airbag module can be reduced in size and weight, and the amount of explosives for deploying the airbag can be reduced.

Moreover, compared with the case where a large airbag is equipped, the airbag deployment time can be shortened and the response of airbag deployment can be improved.
Furthermore, even when the airbag is suddenly deployed in the closed passenger compartment space, an increase in air pressure in the passenger compartment space can be suppressed as compared with a large airbag.

  Further, the movable direction of the side support in which the airbag module is arranged is set to the vertical direction with respect to the seat back, so that the airbag can be surely counteracted by a reaction force in the rearward direction of the vehicle generated by deploying the vehicle front. Can be deployed.

  As an aspect of the present invention, the slide mechanism includes an inner slider fixed to a seat back frame constituting the seat back, and an outer slider fixed to the side support and fitted to the inner slider, and the air A bag module can be coupled to the outer slider.

  According to the above configuration, the side support can be moved downward by a slide mechanism having a simple structure that fits the inner slider and the outer slider, and the deployment reaction force when the airbag is deployed is passed through the outer slider and the inner slider. Since it can be supported by the seat back frame, the airbag can be reliably deployed and functioned. Furthermore, since the slide mechanism is configured with a simple structure, it is possible to realize the downward movement of the side support with high reliability and few failures.

Further, as an aspect of the present invention, it is possible to provide side support moving means for moving the side support downward in accordance with the front slide of the seat cushion.
According to the above configuration, the side support can be adjusted to an appropriate position by simply sliding the seat cushion forward, so compared to a seat device that adjusts the front cushion and the side support separately for position adjustment, The occupant adjustment work is simplified and convenience is improved.

Further, as an aspect of the present invention, it is possible to provide a restricting means for restricting the movement of the airbag module in the vertical direction when the airbag is deployed.
The restricting means is a restricting means for restricting movement in the vertical direction by restricting the airbag module, or a restricting means for restricting movement in the vertical direction by restricting the side support on which the airbag module is disposed. Including.
Thereby, since it can prevent that an airbag module moves by the reaction force at the time of airbag deployment, an airbag can be appropriately developed and made to function.

  Further, as an aspect of the present invention, an appropriate deployment range in the vertical direction in which the airbag is deployed and functions properly is set, and the airbag module in which the deployed airbag exceeds the proper deployment range is provided with an airbag An appropriate deployment movement mechanism for moving the airbag to a position where the airbag is deployed within the appropriate deployment range can be provided when the bag is deployed.

The proper development range includes a vertical proper development range based on the seat device and a vertical proper development range based on the occupant's body shape.
The proper deployment movement mechanism for moving the airbag module to a position where the airbag is properly deployed is a movement mechanism that moves the side support on which the airbag module is disposed, or a movement mechanism that moves only the airbag module. Including.

  As a result, even if the side support that has moved according to the occupant's body shape is in a position that exceeds the appropriate deployment range when the airbag is deployed, the airbag is positioned at a position where the airbag is properly deployed when the airbag is deployed. The bag module can be moved.

  Therefore, in normal riding conditions, when the side support is placed at a position suitable for the occupant's body shape and the airbag is deployed due to a collision or the like, the airbag module is moved to a position where the airbag is properly deployed. The airbag can be deployed and function properly within the deployment range.

  As an aspect of the present invention, the appropriate deployment moving mechanism can be configured to move the airbag module by an operating force of a pretensioner mechanism that forcibly winds up the seat belt at the time of collision.

  The pretensioner mechanism is an auxiliary protective device that is equipped for the purpose of improving the passenger's protection performance by removing the slack of the seat belt in the event of a collision, so that the passenger can be securely fixed before moving forward, and the buckle itself is retracted. This means that it is a gunpowder type or motor type pretensioner mechanism.

  As a result, the operating force of the pretensioner mechanism that acts instantaneously can be used in the event of a collision where the airbag is deployed, so the airbag module is moved to a position where the airbag is properly deployed at the moment when the airbag is deployed. Thus, the airbag can be deployed and function properly within the proper deployment range.

  Also, since the operating force of the pretensioner mechanism that forcibly winds up the seatbelt in the event of a collision can be used, the parts compared to the case where the seatbelt pretensioner mechanism and the airbag module moving mechanism are provided separately. The number of points can be reduced and space can be saved.

  According to the present invention, a vehicle seat apparatus that is supported so as to be slidable in the vehicle front-rear direction with respect to a floor panel that forms the bottom surface of the passenger compartment, and that is provided with a side support on the side portion of the seat back and equipped with an airbag module. Therefore, the airbag can be deployed at an appropriate position for passengers of any body type.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the overall configuration of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a vehicle seat device 1 according to the present invention, FIG. 2 is a front view and a side view of the vehicle seat device 1, and FIG. 3 is a developed airbag 82 and an appropriate deployment range T. FIG. 4 is an end view of the seat back 20 near the center in the height direction.

  5 shows an explanatory diagram of the slide mechanism 40 attached to the side support 30, FIG. 6 shows an explanatory diagram of the side support moving mechanism 70 for moving the side support 30, and FIG. 7 explains the operation of the side support moving mechanism 70. FIG. 8 is an explanatory diagram for explaining the operation of the proper deployment moving mechanism 90.

  The vehicle seat device 1 is a driver's seat on which a driving occupant P sits, and includes a slide rail 60, a front seat 10, a side support moving mechanism 70, a side airbag mechanism 80, and a proper deployment moving mechanism 90. .

  The slide rail 60 includes a seat slider 61 that is fixed to the floor panel 100 and has a concave cross section, and a seat rail 62 that is slidably fitted to the seat slider 61 and fixed to the seat base 51.

  The front seat 10 includes a seat cushion 50 having a seat base 51 at the lower portion, a seat back 20 disposed behind the seat cushion 50 via a reclining mechanism 56 having a reclining shaft 56a as a pivot center, and the seat back The headrest 11 is attached to the upper end of the head 20 so that the position in the vertical direction can be adjusted, and the side support 30 provided on both sides of the seat back 20.

  The headrest 11 includes a headrest pad 12, a headrest cover 13 that covers the outside of the headrest pad 12, and a lower portion of the headrest pad 12, and is slidably inserted into a fixed holder 21 a disposed on an upper portion of a seat back frame 21 described later. It is comprised with the support bar 11a supported.

  The seat back 20 is configured by a seat back frame 21 configured in a substantially gate shape in front view, a seat back pad 22 surrounding the seat back frame 21, and a seat back cover 23 covering the outside of the seat back pad 22. Yes.

  The side support 30 (30a, 30b) includes a moving bolster 31 that forms a framework of the side support, a side support pad 32 that surrounds the moving bolster 31, and a side support cover 33 that covers the outside of the side support pad 32.

  The left and right side supports 30a and 30b connect the movable bolsters 31 with two connecting bars 34 that penetrate the seat back 20 in the vehicle width direction W, and move up and down with respect to the seat back 20 via the slide mechanism 40. It is connected so as to be slidable in the direction (see FIG. 4).

  As shown in FIGS. 4 and 5, the slide mechanism 40 includes an inner slider 41 fixed to the outside of the seat back frame 21 in the vehicle width direction W and an outer slider fixed to the inside of the movable bolster 31 in the vehicle width direction W. The slider 42 and a coil spring 43 that biases the outer slider 42 slid downward relative to the inner slider 41 upward.

  The inner slider 41 is formed in a substantially M shape in a plan view in which a convex shape, a concave shape, and a convex shape are formed continuously in the vehicle front-rear direction L. Locking openings 41a arranged at equal intervals in the vertical direction are provided on the side surface of the front f.

  The outer slider 42 is configured such that both ends in the vehicle front-rear direction L are folded back and the inner slider 41 is slidably engaged with the inner side in a plan view (see FIG. 5B). Are provided with locking protrusions 42a protruding inward and locked to the locking openings 41a at the same intervals as the locking openings 41a.

  The coil spring 43 is disposed in a space surrounded by the inner side in a plan view of the outer slider 42 and the central concave portion of the inner slider 41 in the vehicle longitudinal direction L, the lower end is fixed to the outer slider 42, and the upper end is the inner slider. 41 is fixed.

  The seat cushion 50 includes a seat base 51 at a lower portion, and includes a seat cushion frame (not shown), a seat cushion pad, and a seat cushion cover 50a that covers the outside of the seat cushion pad.

  The seat base 51 includes a base pipe 52, a seat rail 62 disposed at the lower end, and a base cover 53 that covers a lower side portion of the seat cushion 50.

  The seat base 51 is provided with a buckle 54 for fixing and releasing a seat belt (not shown), and a tensioner long hole 55 for locking a rolling shaft 94a of a tensioner pulley 94 described later (see FIG. 8). .

  As shown in FIG. 8C, which is an enlarged side view of the peripheral portion of the tensioner long hole 55, the tensioner long hole 55 is long in the vehicle front-rear direction L and inwardly at a place about 1/3 from the vehicle rear b. A projecting triangular constriction 55c is provided at the top and bottom, the vehicle front f is defined as a pretensioner region 55b from the constriction 55c, and the vehicle rearward b is defined as a normal region 55a from the constriction 55c.

  Note that the distance between the tips of the upper and lower constrictions 55c is not allowed to pass through the rolling shaft 94a in the vertical octagonal standing state as in the normal region 55a, but is in the laterally long octagonal shape as in the pretensioner region 55b. Passing of the rolling shaft 94a in the inverted state is formed at an allowable interval.

  As shown in FIG. 7, the side support moving mechanism 70 includes a restriction slider 71 disposed in parallel to an end portion of the front side f of the seat slider 61 in the vehicle front-rear direction L, and slides on the restriction slider 71 in the vehicle front-rear direction L. A U-shaped hook 72 having a U-shape as viewed from the side, which is fitted to the restriction slider 71 as possible, and an inverted L-shape in which a horizontal protrusion 73a protrudes from the front end of the restriction slider 71 toward the rear b of the vehicle. The lock hook 73, and the base pipe 52, the tensioner pulley 94, and the tension wire 74 locked to the peripheral surface of the reclining shaft 56a on the path connecting the U-shaped hook 72 and the moving bolster 31 are configured. ing.

  The regulation slider 71 includes a T-shaped rail 71a having a T-shape when viewed from the front, and is formed to have a length that is approximately half the sliding amount SL (see FIG. 7) of the vehicle seat device 1 in the vehicle longitudinal direction L direction. Yes.

  The U-shaped hook 72 is provided with a fitting groove 72a for fitting with the T-shaped rail 71a of the regulating slider 71 at the bottom, forms a U-shape when viewed from the side, and has a horizontal protrusion 73a of the locking hook 73. Horizontal recesses 72b that allow insertion of

A tension wire 74 having the other end connected to the moving bolster 31 is connected to the upper rear end of the U-shaped hook 72.
The U-shaped hook 72 slides on the T-shaped rail 71a as the front seat 10 moves forward until the horizontal protrusion 73a is inserted into the horizontal recess 72b and locked (FIG. 7 ( When the horizontal protrusion 73a is inserted into the horizontal recess 72b and locked (see FIG. 7B), the front seat 10 does not move even if it moves forward (see FIG. 7C). ).

  The side airbag mechanism 80 includes an airbag 82 and an airbag module 81 that houses a folded airbag 82 and an inflator (not shown). The airbag module 81 is fixed to the outer side surface of the outer slider 42 in the vehicle width direction W in the right side support 30a on the door side opposite to the side where the buckle 54 is disposed, of the left and right side supports 30. .

  As shown in FIG. 8, the proper deployment movement mechanism 90 includes a pretensioner body 91, a branch wire 92 that is drawn into the front f of the vehicle by the pretensioner body 91, and the rear part of the vehicle branches into two, A buckle pulley 93 that is engaged with the buckle wire portion 92b, and a vertically long octagonal rolling shaft 94a that engages with a tensioner long hole 55 of the seat base 51, and a tension between the base pipe 52 and the reclining shaft 56a. The tensioner pulley 94 is engaged with the wire 74.

  More specifically, the branch wire 92 is a three-pronged wire branched into a front wire portion 92a at the front f of the vehicle and a buckle wire portion 92b and a pulley wire portion 92c at the rear of the vehicle b.

  The pretensioner body 91 pulls the branch wire 92 to the front f of the vehicle using the explosive force of explosives when a collision or the like occurs, and the front wire portion 92a of the branch wire 92 is connected to the pretensioner body 91. ing.

The buckle wire portion 92 b of the branch wire 92 is changed in direction by a buckle pulley 93 and connected to the proximal end portion 54 a of the buckle 54.
As shown in FIG. 8C, the pulley wire portion 92c of the branch wire 92 is connected to a position eccentrically downward from the center of the rolling shaft 94a on the pretensioner region 55b side in a normal state.

  As shown in FIG. 2, an appropriate deployment range T of the side airbag mechanism 80 is set for the vehicle seat device 1 having the above-described configuration. The appropriate deployment range T is a range in the vertical direction in which the deployed airbag 82 can function safely and appropriately with respect to the occupant P seated on the vehicle seat device 1, and the upper limit is the proper deployment upper limit level TUL and the lower limit is the lower limit. The appropriate development lower limit level TDL is set.

Next, the slide position adjustment of the vehicle seat device 1 configured as described above will be described.
Although not shown, an instrument panel having a handle is disposed in front of the vehicle seat device 1, and an occupant P seated on the vehicle seat device 1 is placed on the floor panel 100 according to his body shape, mainly his height. The position of the vehicle seat device 1 in the vehicle longitudinal direction L is adjusted.

  For example, the position in the vehicle front-rear direction L adjusted to the body shape of the occupant P1 having a standard body height of about 170 cm becomes the standard position SP1 having an appropriate distance from the steering wheel (FIG. 3A), and the height is 150 cm. The position in the vehicle front-rear direction L adjusted according to the body shape of the small occupant P2 is a front position SP3 near the steering wheel (FIG. 3B). In the present embodiment, the front position SP3 is the frontmost position in the adjustable range in the vehicle longitudinal direction L in the vehicle seat device 1.

  And the side support 30 moves to the arrow a direction according to the front slide for position-adjusting the vehicle seat apparatus 1 from such standard position SP1 to front position SP3.

  Specifically, when the vehicle seat device 1 is at the standard position SP1 in the vehicle longitudinal direction L (see FIGS. 6A and 6B), the side support 30 is positioned at a reference height with respect to the seat back 20.

  At this time, the U-shaped hook 72 and the locking hook 73 of the side support moving mechanism 70 are not locked (see FIG. 7A). From this state, the U-shaped hook 72 and the locking hook 73 are The vehicle seat device 1 is moved forward to the locking position (lowering start position: SP2) (see FIGS. 6C and 7B).

  In this movement, the positional relationship between the base pipe 52 that is a part of the seat base 51 and moves together with the front seat 10 and the U-shaped hook 72 does not change, the side support 30 remains at the reference height, and the front seat 10 moves forward. Moving.

  When moving further forward from the descending start position SP2 to the forward position SP3 (see FIGS. 6D and 6E), the U-shaped hook 72 is not moved because it is locked to the locking hook 73. The base pipe 52 which is a part of the seat 10 moves forward from the U-shaped hook 72 (see FIG. 7C).

  By the forward movement of the base pipe 52, the tension wire 74 is pulled in the direction of the arrow b, and when the tension wire 74 is pulled, the side support 30 is moved in the direction of the arrow a ((FIGS. 6D, 6E, 7). (See (b) and (c)).

In addition, the height of the side support 30 at the front position SP3 that is the foremost position in the adjustable range in the vehicle front-rear direction L is the lowest position DH.
Further, the side support 30 that has moved in the direction of the arrow a holds its position against the upward biasing force of the coil spring 43 by the pulling force of the tension wire 74.

  Thus, the small passenger P2 seated on the vehicle seat device 1 adjusts the position L of the vehicle seat device 1 in the vehicle front-rear direction according to his / her body shape, and changes the side support 30 to his / her body shape. Since the height can be adjusted according to the height, a safe driving environment can be established and the convenience for the passenger P2 can be improved.

  However, as shown in FIG. 3 (b), when the side airbag mechanism 80 is operated in a state where the side support 30 is at the lowest position DH, the airbag 82 extends to the lower side across the appropriate deployment lower limit level TDL of the proper deployment range T. Is expanded.

  As described above, when the airbag 82 is deployed to the lower side across the appropriate deployment lower limit level TDL, a sufficient protective effect cannot be exerted on the occupant P2, so that the lower end of the deployed airbag 82 is the proper deployment lower limit. When the side airbag mechanism 80 is operated and the airbag 82 is deployed so as to be above the level TDL, it is necessary to move the airbag module 81 together with the side support 30 by the proper deployment moving mechanism 90.

  Thus, when the airbag 82 is deployed, the appropriate deployment moving mechanism 90 that moves the airbag module 81 together with the side support 30 so that the lower end of the deployed airbag 82 is above the appropriate deployment lower limit level TDL. The mechanism will be described in detail. First, the side support 30 at the lowest position DH opposes the upward biasing force by the coil spring 43 and is pulled downward by the tension wire 74 to hold the position.

  The other end of the tension wire 74 connected to the movable bolster 31 is attached to the upper surface of the U-shaped hook 72 as described above, and is connected to the base pipe 52, the tensioner pulley 94, and the reclining shaft 56a in this order. Stopped and tensioned.

  In such a state, when a collision that causes the side airbag mechanism 80 to operate is detected, the pretensioner main body 91 pulls the front wire portion 92a into the vehicle front f. By pulling in the branch wire 92, the buckle 54 is pulled in the direction of the arrow c by the buckle wire portion 92 b to eliminate the slack of the seat belt (not shown) and reliably prevent the occupant P from moving forward due to the collision. Can do.

  The pulling force of the branch wire 92 in the front f of the vehicle by the pretensioner main body 91 also acts on the rolling shaft 94a by the pulley wire portion 92c. When the pulley wire portion 92c connected to the lower side of the rolling shaft 94a that is standing in the normal region 55a in the normal state is pulled in the direction of arrow d, which is the vehicle front f, the rolling shaft 94a is 90 degrees in the direction of arrow e. Rotates to the inverted position and is pulled to the pretensioner region 55b.

  In this way, by pulling the rolling shaft 94a that was in the normal region 55a to the pretensioner region 55b by the pulling force of the pretensioner body 91 that sensed the collision, as shown in FIG. 8C, the tensioner pulley 94 Moves forward by a movement amount M.

  Due to the forward movement of the tensioner pulley 94, the locking path of the tension wire 74 is shortened, and the side support 30 is moved upward from the lowest position DH by the upward biasing force of the coil spring 43 by the shortened locking path. (See FIG. 8B), the lower end of the deployed airbag 82 is above the appropriate deployment lower limit level TDL. Therefore, the deployed airbag 82 can function safely and appropriately for the occupant P seated on the vehicle seat device 1.

  When the side airbag mechanism 80 is deployed in the appropriate deployment range T, the deployment reaction force R of the airbag 82 at the rear of the vehicle b acts on the outer slider 42 to which the airbag module 81 is fixed, and FIG. As shown in FIG. 5, the locking projection 42 a is fitted into the locking opening 41 a, and the vertical direction of the outer slider 42 is restrained with respect to the inner slider 41 fixed to the seat back frame 21.

  Therefore, when the restraint of the outer slider 42 with respect to the inner slider 41 is not sufficient, there is a possibility that the deployment reaction force R will dissipate in the vertical direction and the deployment force of the vehicle front f of the airbag 82 will not sufficiently act. Since the upper and lower restraints of the outer slider 42 with respect to the inner slider 41 fixed to the back frame 21 are sufficient, the airbag 82 can be reliably deployed by applying the deployment force of the vehicle front f.

  Thus, the seat cushion 50 that is slidably supported in the vehicle front-rear direction L with respect to the floor panel 100 that forms the bottom surface of the vehicle compartment, and the seat back provided at the rear portion of the seat cushion 50 20 and a side support 30 provided on a side portion of the seat back 20, and an airbag module 81 that deploys an airbag 82 in the event of a collision. The airbag module 81 is disposed on the side support 30. Since the side support 30 is supported on the seat back 20 via the slide mechanism 40 that is movable in the vertical direction, the position of the seat cushion 50 is adjusted to the front f of the vehicle according to the body shape of the occupant P, and the side support 30 can be moved to an appropriate position to the vehicle seat device 1 Comfort, for more information, there is of moderate hold feeling while, it is possible to provide a better comfort than the absence of inappropriate restraint feeling.

  In addition, since the airbag module 81 is disposed on the side support 30 that can move to an appropriate position, the airbag 82 can be deployed at an appropriate position according to the body shape of the occupant P.

  Therefore, since the airbag 82 can be deployed at a position suitable for the body shape of the occupant P as compared with the airbag 82 of a size that allows the occupant P of any body type to function properly, the small airbag 82 can function properly. it can.

  Further, the airbag module 81 can be reduced in size and weight as compared with the case where the large airbag 82 is provided. Furthermore, the amount of explosives for deploying the airbag 82 can be reduced, and the deployment time of the airbag 82 can be shortened compared with the case where a large airbag 82 is provided, and the response of the airbag deployment is improved. Can be improved. Furthermore, even when the airbag 82 is suddenly deployed in the closed passenger compartment space, an increase in air pressure in the passenger compartment space can be suppressed as compared with the large airbag 82.

  Further, the direction of movement of the side support 30 on which the airbag module 81 is disposed is set to the direction of the arrow a with respect to the seat back 20 by the slide mechanism 40, so that the vehicle rear b generated by deploying in the vehicle front f is generated. The airbag 82 can be reliably deployed against the deployment reaction force R.

  The slide mechanism 40 includes an inner slider 41 fixed to the seat back frame 21 constituting the seat back 20 and an outer slider 42 fixed to the side support 30 and fitted to the inner slider 41. Since the airbag module 81 is connected to the outer slider 42, the side support 30 can be moved downward with a simple structure, and the deployment reaction force R when the airbag 82 is deployed is changed to the outer slider 42 and the inner slider. 41, since it can be supported by the seat back frame 21, the airbag 82 can be surely deployed and functioned, and since it has a simple structure that fits the inner slider 41 and the outer slider 42, There are few breakdowns, It is possible to realize the downward movement of high dependability side support 30.

  Further, by providing a side support moving mechanism 70 that moves the side support 30 in the direction of arrow a in accordance with the front slide of the seat cushion 50, the side support 30 can be moved to an appropriate position only by sliding the seat cushion 50 forward. Therefore, the adjustment operation of the occupant P is simplified and the convenience is improved as compared with the vehicle seat device 1 in which the seat cushion 50 and the side support 30 are adjusted separately, respectively.

  Further, as a restricting means for restricting the vertical movement of the airbag module 81 when the airbag 82 is deployed, a locking opening 41a and a locking projection that are locked by a deployment reaction force R when the airbag 82 is deployed. By providing the portion 42a, the airbag module 81 can be prevented from moving due to the deployment reaction force R when the airbag 82 is deployed, and the airbag 82 can be deployed and function appropriately.

  In addition, an appropriate vertical deployment range T is set in which the airbag 82 is deployed and functions properly, and the airbag module 81 in a position where the deployed airbag 82 exceeds the proper deployment range T By providing the proper deployment moving mechanism 90 that moves the airbag 82 to a position where the airbag 82 is deployed within the proper deployment range T when the 82 is deployed, the side support 30 that has moved according to the body shape of the occupant P is Even when the airbag 82 is deployed at the position DH that exceeds the appropriate deployment range T, when the airbag 82 is deployed, the airbag module 81 is placed at a position where the airbag 82 is properly deployed. Can be moved.

  Therefore, when the side support 30 is disposed at a position, for example, the lowest position DH, suitable for the body shape of the occupant P2 in a normal riding state, and the airbag 82 is deployed by a collision or the like, the airbag module 81 is installed in the airbag module 81. The airbag 82 can be moved to a position where it is properly deployed, and the airbag 82 can be deployed within the appropriate deployment range T to function properly.

  Further, since the air bag module 81 is moved by the operating force in the direction of the arrow d of the pretensioner body 91 that forcibly winds up the seat belt in the event of a collision, the air bag module 81 is moved instantaneously. The mechanism 90 can be operated, and the number of parts can be reduced and the space can be saved as compared with the case where the seat belt pretensioner body 91 and the moving mechanism of the airbag module 81 are separately provided. it can.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The vehicle seat device of the present invention corresponds to the vehicle seat device 1,
Similarly,
The lower part corresponds to the direction of arrow a,
The side support moving means corresponds to the side support moving mechanism 70,
The restricting means corresponds to a locking opening 41a formed in the inner slider 41 and a locking projection 42a formed in the outer slider 42,
The proper deployment movement mechanism corresponds to the proper deployment movement mechanism 90,
The pretensioner mechanism corresponds to the pretensioner body 91,
The present invention is not limited to the above-described embodiment. For example, the present invention may be implemented using a so-called passenger seat.
Furthermore, although the appropriate deployment range T is set for the vehicle seat device 1, a body sensor for detecting the body shape of the occupant P is provided, and the appropriate deployment upper limit levels TUL and TDL are set based on the detection result of the body sensor. May be.

The perspective view of a sheet apparatus. Explanatory drawing by the front view and side view of a sheet apparatus. Explanatory drawing about the relationship between the deployed airbag and the appropriate deployment range. The end view near the height direction center of the seat back. Explanatory drawing about the slide mechanism with which the side support was mounted | worn. Explanatory drawing about the side support moving mechanism which moves a side support. Explanatory drawing explaining operation | movement of a side support moving mechanism. Explanatory drawing about a proper expansion | deployment moving mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat apparatus 20 ... Seat back 21 ... Seat back frame 30 ... Side support 40 ... Slide mechanism 41 ... Inner slider 41a ... Locking opening 42 ... Outer slider 42a ... Locking convex part 50 ... Seat cushion 70 ... Side support moving mechanism 81 ... Airbag module 82 ... Airbag 90 ... Proper deployment movement mechanism 91 ... Pretensioner body 100 ... Floor panel L ... Vehicle longitudinal direction T ... Proper deployment range

Claims (6)

A seat cushion supported so as to be slidable in the vehicle front-rear direction with respect to a floor panel that forms the bottom surface of the passenger compartment, a seat back provided at a rear portion of the seat cushion, and a side support provided at a side portion of the seat back And a vehicle seat device equipped with an airbag module that deploys an airbag in the event of a collision,
While arranging the airbag module on the side support,
A vehicle seat apparatus that supports the side support with respect to the seat back via a slide mechanism that is movable in a vertical direction. The slide mechanism
An inner slider fixed to a seat back frame constituting the seat back;
It is composed of an outer slider that is fixed to the side support and fitted to the inner slider,
The vehicle seat device according to claim 1, wherein the airbag module is connected to the outer slider. The vehicle seat device according to claim 1 or 2, further comprising a side support moving means for moving the side support downward in accordance with a forward slide of the seat cushion. The vehicle seat device according to any one of claims 1 to 3, further comprising restricting means for restricting movement of the airbag module in a vertical direction when the airbag is deployed. Set the appropriate deployment range in the vertical direction where the airbag is deployed and functions properly,
The airbag module in which the airbag to be deployed is in a position exceeding the appropriate deployment range,
The vehicle seat device according to any one of claims 1 to 4, further comprising a proper deployment movement mechanism that moves the airbag to a position at which the airbag is deployed within a proper deployment range when the airbag is deployed. The proper deployment movement mechanism
The vehicle seat device according to claim 5, wherein the airbag module is moved by an operating force of a pretensioner mechanism that forcibly winds up the seat belt at the time of a collision.

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