JP6569756B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat, and more particularly, to a vehicle seat having a region facing the belt portion of the seat belt on the front surface of the seat belt when the seat belt is unlocked and in a standby position.

  Some vehicle seats have an area (hereinafter referred to as an opposing area) on the front surface of the seat belt that faces the belt portion of the seat belt when the seat belt is in the unlocked and standby position. A seated person sitting on such a seat moves the belt portion to a position where the seat portion is in a locked state by grasping a portion of the belt portion of the seat belt located on the front side of the facing region.

  In recent years, for the purpose of facilitating gripping of the belt portion, a vehicle seat incorporating a movable body that pushes a part of the belt portion forward has been developed (for example, see Patent Document 1). Such a movable body corresponds to a seat belt wearing assistance device (so-called belt reacher) and assists a seated person wearing the seat belt. Specifically, a part of the belt portion is pushed forward by the movable body, so that a seat occupant can grasp the belt portion more easily.

JP 2004-306642 A

  However, the vehicle seat using the seat belt wearing auxiliary device requires a mechanism and power for moving the device, and needs to secure a movable space. On the other hand, a simpler configuration is desirable for the configuration of the vehicle seat. That is, it is required to make it easier to grip the belt portion of the seat belt with a simpler configuration than the configuration using the seat belt wearing assistance device. On the other hand, when the seat belt wearing assistance device is used, it is required to make the belt portion easier to grip while taking advantage of the device.

This onset bright object is to provide a vehicle seat capable of suppressing from being extends affect the operation of the airbag module by providing a space forming portion.

A vehicle seat according to the present invention includes a support portion that supports the back of a seated person from the rear, a side portion that is located to the side of the support portion, and an airbag module that is accommodated in the side portion. A vehicle seat, wherein the side portion includes a resin plate and a skin material covering the resin plate, and the resin plate includes a bottom portion and side walls provided on both sides of the bottom portion. A space forming portion including a recessed portion, and a housing recessed portion for housing the airbag module disposed at a position different from the space forming portion, and at least a part of the space forming portion is a sheet. facing the belt portion of the seat belt when the belt is in the standby position the unlocked state, at least a part of the space forming part is provided on the support portion side with respect to the air bag module, the air It said side wall is located in the supporting portion side of the forming portion is positioned on the supporting portion side in the seat width direction than the side wall located on the support part side of the housing recess.
Further, in the above vehicle seat, the vehicle seat has a webbing extending from the airbag module, and the recess is provided on the support unit side with respect to a breakage part connecting the webbing and the skin material. It is good to have.
Further, in the above vehicle seat, the front surface of the side portion has a facing area that faces the belt portion of the seat belt when the seat belt is in the unlocked state and in the standby position, and at least the belt portion A part is good to be provided in the support part side to the fracture part.
Further, in the above vehicle seat, the vehicle seat includes a webbing extending from the airbag module, and the concave portion is configured to support the end of the webbing fixed to the airbag module. It is good to be provided in the side, and the said recessed part is formed in the position which overlaps with the said airbag module in an up-down direction, and is arrange | positioned in the upper position rather than the said airbag module .
In the above vehicle seat, the space forming portion including the concave portion may be configured as a concave portion of a decorative component arranged on the surface of the skin material .

  According to said structure, the space formation part which consists of a recessed part or a convex part is provided in at least one part in the opposing area | region facing the belt part of a seatbelt. By providing such a space forming portion, when the seat belt is in the standby position in the unlocked state, a space (gap) is formed between the facing region and the belt portion. By using this space (for easy understanding, by inserting a finger into the space), the belt portion can be gripped more easily. As described above, according to the vehicle seat of the present invention, the belt portion of the seat belt can be easily grasped without using the seat belt wearing auxiliary device. In other words, according to the present invention, the belt portion can be easily grasped with a simpler configuration.

Further, in the above vehicle seat, the space forming portion includes the concave portion, and when the seat belt is in the standby position in the unlocked state, one end in the lateral width direction of the concave portion is the width of the belt portion. The other end in the lateral width direction of the concave portion is located between the one end and the other end in the width direction of the belt portion. It may be.
In said structure, the recessed part is provided in the position which approached the one end side among the width direction both ends of the belt part of a seatbelt. According to such a configuration, for example, the belt portion can be easily grasped by inserting a finger into the space in the recess from one end side in the width direction of the belt portion.

Alternatively, in the above vehicle seat, the space forming portion includes the recess, and when the seat belt is at the standby position in the unlocked state, the space forming portion is between the one end and the other end in the lateral width direction of the recess. One end and the other end in the width direction of the belt portion may be located.
In the above configuration, the concave portion is wider than the belt portion. According to such a configuration, although the size of the concave portion is increased, it becomes possible to insert a finger into the space in the concave portion from each of the widthwise ends of the belt portion, so that the belt portion can be gripped more easily. It becomes possible.

Further, in the above vehicle seat, the space forming portion includes the concave portion, and a lateral width direction of the concave portion is along a width direction of the vehicle seat. Of the dimensions of the concave portion, the lateral width of the concave portion is than the length in the direction of the recess of the length in the vertical direction intersecting the width direction is rather long, and the side wall located on the support part side of the space forming part, the supporting part side of the housing recess It is preferable that the side wall located is disposed at a position that is discontinuous in the resin plate .
In the above configuration, the length in the direction intersecting with the lateral width of the recess (hereinafter also referred to as the longitudinal width) is longer than the lateral width of the recess. That is, in the above configuration, the space forming portion is constituted by a vertically long concave portion. In this case, the space in the recess is also formed vertically. As a result, it is possible to mitigate the influence of the body shape of the seated person (specifically, the sitting height) on the ease of gripping the belt portion.

Further, in the above vehicle seat, the space forming portion includes the concave portion, and the concave portion includes an opening facing the belt portion and a bottom surface located on the opposite side of the opening. It is more preferable that the area of the opening is larger than the area of the bottom surface.
In the above configuration, the opening has a shape that is wider than the bottom surface in the recess. With such a configuration, it is easy to insert a finger into the concave portion, so that the belt portion can be gripped more easily.

Further, in the above vehicle seat, an air bag module including an air bag is disposed on the rear side of the facing area, and the space forming portion includes the air bag module on the rear side in the facing area. You may be provided in the part remove | deviated from the arrange | positioned part.
In said structure, the space formation part is formed in the part remove | deviated from the part by which the airbag module is arrange | positioned in the rear side in the opposing area | region. If it is such a structure, it will become possible to suppress affecting the action | operation of an airbag module by providing a space formation part.

Alternatively, in the above-described vehicle seat, an airbag module including an airbag is disposed on the rear side of the facing area, and the space forming portion includes the airbag module on the rear side in the facing area. You may be provided in the arrange | positioned part.
In said structure, the space formation part is formed in the part by which the airbag module is arrange | positioned in the back side in the opposing area | region. With such a configuration, the space forming portion can be efficiently arranged by effectively utilizing the space between the belt portion and the airbag module.

Further, in the above vehicle seat, an extruding mechanism that moves to extrude a part of the belt portion forward is attached to the facing area, and the space forming portion is arranged in the up-down direction in the facing area. It is preferable that the push-out mechanism is formed in a portion that is removed from the portion to which the push-out mechanism is attached.
In said structure, the space formation part is formed in the part which remove | deviated from the part to which the extrusion mechanism is attached in the up-down direction in the opposing area | region. With such a configuration, the belt portion is easily grasped by the space forming portion while effectively utilizing the push-out mechanism as the seat belt wearing auxiliary device. In other words, it is possible to use the extrusion mechanism and the space forming portion complementarily. For example, the extrusion amount of the extrusion mechanism can be reduced, and the space formation portion can secure the ease of gripping the belt portion accordingly. It becomes. As a result, it is possible to secure the ease of gripping the belt portion while suppressing the size of the push-out mechanism. Moreover, it becomes possible to arrange | position a space formation part using the space located in the upper and lower sides of an extrusion mechanism effectively.

Further, in the above vehicle seat, the parts forming the space forming part and the parts forming the peripheral part located around the space forming part are separate from each other, and in a combined state It may be integrated.
In said structure, since the components which comprise a space formation part are a different body from the surrounding components, the freedom degree at the time of shape | molding a space formation part becomes high. With such a configuration, it becomes easy to form the space forming portion into a desired shape.

Further, in the above configuration, the component forming the space forming portion is a movable member having a formation surface of the concave portion, and the movable member includes a position where the formation surface is exposed in the facing region, and the formation surface. It is good that it can reciprocate between the position which has remove | deviated from the said opposing area | region.
In said structure, the movable member as a space formation part moves, and the state where a recessed part appears and the state where a recessed part is hidden can be switched freely. With such a configuration, when the space forming portion is not used, that is, when the belt portion of the seat belt is not gripped, it is possible to hide the concave portion and improve the design of the seat.

Further, in the above configuration, the movable member is a rotating member that is rotatably supported. When the movable member rotates, the position where the forming surface is exposed in the facing region and the forming surface deviate from the facing region. It is better to reciprocate between the current position.
In the above configuration, the state where the concave portion appears and the state where the concave portion is hidden are switched by the rotation of the rotating member. With such a configuration, it is possible to more easily switch between the two states.

In the above configuration, it is further preferable that a surface of the rotating member that is located on the opposite side of the forming surface across the rotating shaft is constituted by a skin material attached to the rotating member.
According to said structure, it becomes possible to further improve the designability of a sheet | seat when a recessed part is hidden, without utilizing a space formation part.

Further, in the above configuration, a positioning portion that holds the position of the movable member is provided, and the positioning portion pushes a part of the belt portion forward at a portion surrounding the concave portion in the movable member. It is better to hold the movable member in position.
According to said structure, by providing the positioning part, a movable member comes to push out a part of belt part ahead in the part surrounding a recessed part. According to such a structure, it becomes possible to utilize a movable member, ie, the member which comprises a space formation part, as a seatbelt wearing auxiliary device.

In the above configuration, the concave portion formed on the forming surface of the movable member is even better when used to provide a space for storing small items.
According to said structure, since the movable member as a space formation part is combined as what forms the space for accessory storage, it becomes possible to utilize a movable member more effectively.

According to the vehicle seat of the present invention, it is possible to easily grasp the belt portion with a relatively simple configuration.
Further, according to the vehicle seat of the present invention, by providing a recess at a position closer to one end side of both ends in the width direction of the belt portion of the seat belt, a space in the recess is formed from one end side in the width direction of the belt portion. It is possible to easily grasp the belt portion by inserting a finger. Alternatively, by making the recess wider than the belt portion, the size of the recess increases, but the belt portion can be gripped more easily.
Further, according to the vehicle seat of the present invention, since the space forming portion is constituted by the vertically long concave portion, the influence of the body shape of the seated person (specifically, the seat height) on the ease of gripping the belt portion can be reduced. Is possible.
Further, according to the vehicle seat of the present invention, since the opening in the concave portion is wider than the bottom surface, it becomes easier to insert a finger into the concave portion, and the belt portion can be gripped more easily. .
Further, according to the vehicle seat of the present invention, the space forming portion is formed in a portion that is out of the portion where the airbag module is disposed on the rear side in the facing region, so that the space forming portion of the airbag module is formed. The influence on the operation can be suppressed. Alternatively, the space forming portion is formed in a portion where the air bag module is disposed on the rear side in the facing region, so that the space forming portion is efficiently used by effectively utilizing the space between the belt portion and the air bag module. It becomes possible to arrange well.
Further, according to the vehicle seat of the present invention, the space forming portion is formed in the opposite area in a portion away from the portion where the push-out mechanism is attached in the vertical direction, so that the push-out as a seat belt wearing auxiliary device is performed. The belt is easily grasped by the space forming portion while effectively utilizing the mechanism. Moreover, it becomes possible to arrange | position a space formation part using the space located in the upper and lower sides of an extrusion mechanism effectively.
In addition, according to the vehicle seat of the present invention, since the parts forming the space forming part are separate from the peripheral parts, the degree of freedom in forming the space forming part is increased.
Further, according to the vehicle seat of the present invention, by using the movable member as the space forming portion, it is possible to improve the design of the seat by hiding the recess when the space forming portion is not used.
Moreover, according to the vehicle seat of the present invention, the movable member is a rotating member, so that it is easier to switch between a state in which the recessed portion appears and a state in which the recessed portion is hidden.
Moreover, according to the vehicle seat of the present invention, the skin material is attached to the second surface, thereby further improving the design of the seat when the concave portion is hidden without using the space forming portion. It becomes possible.
Further, according to the vehicle seat of the present invention, since the positioning portion is provided, the movable member is utilized as a seat belt wearing auxiliary device that pushes a part of the belt portion forward at the portion surrounding the recess. It becomes like this.
Moreover, according to the vehicle seat of the present invention, the concave portion is also used as a storage space for small items, and the space forming portion can be used more effectively.

1 is a perspective view showing a vehicle seat according to a first embodiment of the present invention. It is explanatory drawing of the space formation part which concerns on 1st embodiment of this invention, and is a figure which shows the AA cross section in FIG. It is an assembly exploded view of the space formation part concerning a first embodiment of the present invention. It is explanatory drawing of the space formation part which concerns on 1st embodiment of this invention, and is a figure which shows the BB cross section in FIG. It is a figure which shows the modification of the shape of a space formation part. It is a perspective view which shows the vehicle seat which concerns on 2nd embodiment of this invention. It is a figure which shows the modification regarding the arrangement | positioning number of space formation parts. It is a figure which shows the modification regarding the arrangement position of a space formation part, and is a schematic cross section when a side part is cut | disconnected in a horizontal surface. It is a perspective view which shows the vehicle seat which concerns on 3rd embodiment of this invention. It is explanatory drawing of the space formation part which concerns on 3rd embodiment of this invention, and is a figure which shows CC cross section in FIG. It is explanatory drawing of the space formation part which concerns on 4th embodiment of this invention, and is a schematic cross section when the space formation part periphery is cut | disconnected in a vertical surface (the 1). It is explanatory drawing of the space formation part which concerns on 4th embodiment of this invention, and is a schematic cross section when the space formation part periphery is cut | disconnected by a vertical surface (the 2).

  Hereinafter, a specific embodiment (hereinafter, this embodiment) of the present invention will be described with reference to the drawings. However, the embodiments described below are merely examples for facilitating the understanding of the present invention, and do not limit the present invention. That is, the present invention can be changed and improved without departing from the gist thereof, and the present invention includes its equivalents.

  In the following description, the front-rear direction means the front-rear direction when viewed from the seated person seated on the vehicle seat, that is, the direction that coincides with the traveling direction of the vehicle. The width direction means the left-right direction of the vehicle seat. The height direction means the height direction of the vehicle seat, strictly speaking, the vertical direction when the vehicle seat is viewed from the front.

<< Basic structure of vehicle seat >>
First, a vehicle seat according to this embodiment (hereinafter, this seat S) will be described with reference to FIG. Note that FIG. 1 is somewhat simplified for the sake of explanation. For example, the seat belt and the like are not shown for the right seat in the drawing.

  The seat S constitutes a rear seat of the vehicle. However, the content of the present invention is not only applied to the rear seat, but can also be applied to the front seat of the vehicle (that is, the driver seat and the passenger seat).

  Further, in the configuration shown in FIG. 1, two main sheets S are arranged side by side on both sides of the movable armrest S4 and the storage box S5. Note that the two right and left main sheets S have substantially the same configuration although they are bilaterally symmetric. Therefore, hereinafter, only the structure of the sheet S located on the left side (left side in FIG. 1) will be described.

  As shown in FIG. 1, the seat S includes a seat back S1 on which the upper body of the seat occupant (hereinafter simply referred to as a seat occupant) leans, a seat cushion S2 on which the buttock of the seat occupies, and a head of the seat occupant And a supporting headrest S3. Since the present invention is mainly characterized by the seat back S1, the following description will focus on the seat back S1.

  As shown in FIG. 1, the seat back S <b> 1 includes a support portion S <b> 11 that supports the back of the seated person from the back, and a side portion that is located on the side of the support portion S <b> 11 (strictly, the side near the vehicle door). S12. The support portion S11 is configured by placing a pad material (not shown) on a seat back frame (not shown) and then covering with a skin material. A headrest S3 is attached to the center of the upper end surface of the support S11 via a headrest pillar.

  The side portion S12 is located beside the seated person in the state of being seated on the seat S, and is configured, for example, by covering the resin plate 5 illustrated in FIG. Further, the side portion S12 is arranged such that the front surface thereof is inclined with respect to the front surface of the support portion S11. In the present embodiment, the upper end of the side portion S12 is at the same position as the upper end of the support portion S11 in the vertical direction, and the lower end of the side portion S12 is substantially at the same position as the lower end portion of the support portion S11 in the vertical direction. The And the outlet 3 is provided in the position behind back rather than the upper end of side part S12. The webbing 1 of the seat belt is pulled out from the outlet 3.

  The webbing 1 corresponds to a belt part (band-like part) of the seat belt, and is disposed at the position shown in FIG. 1 when the seat belt is in the standby position in the unlocked state. Here, the unlocked state is a state in which the posture of the seated person is not constrained, and a tongue (locking metal fitting) 1a attached to a predetermined portion of the webbing 1 is not fixed to the buckle 2 disposed beside the seat. Means state. Further, the standby position means the position of the seat belt at the stage before being worn (for example, when getting into the vehicle).

  When the seat belt is in the unlocked state and at the standby position, the webbing 1 is stretched in the vertical direction by a retractor (not shown), and has a posture in which the side portion S12 is vertically cut as shown in FIG. Yes. In other words, a region facing the webbing 1 (hereinafter referred to as a facing region) exists on the front surface of the side portion S12 of the seat back S1 from the upper end to the lower end of the side portion S12. As shown in FIG. 1, the facing region is a belt-like region located at the center in the width direction of the side portion S12. When the seat belt is in the unlocked state and at the standby position, the facing region faces the webbing 1 from its upper end to its lower end.

  On the other hand, when the seat belt is worn, the seated person grasps the webbing 1 in the above posture and pulls it forward, and hangs it from the seated person's shoulder (right shoulder) to the left flank. When the tongue 1a is attached to the buckle 2 in this state, the webbing 1 is locked, and the seated person's posture is restrained by the webbing 1.

  In the present embodiment, when the seat belt is in the unlocked state and in the standby position, the webbing 1 is opposed to a predetermined region in the front surface of the side portion S12. However, the present invention is not limited to this. is not. When the seat belt is in the standby position in the unlocked state, the webbing 1 may be opposed to a predetermined region in the front surface of the support portion S11.

  By the way, in this embodiment, the structure which makes it easy to grip webbing 1 at the time of seatbelt wearing is employ | adopted. Hereinafter, such a configuration will be described with reference to a plurality of examples (first embodiment to fourth embodiment).

<< About the first embodiment >>
Hereinafter, the first embodiment will be described with reference to FIGS. In 1st embodiment, the space formation part 10 is provided in the opposing area | region formed in the front surface of side part S12 of seat back S1. The space forming portion 10 is provided to form a space between the facing region and the webbing 1 as shown in FIG. 4 when the seat belt is in the standby position in the unlocked state. In particular, in the first embodiment, as illustrated in FIG. 1, the space forming portion 10 is provided so as to cover substantially the entire area of the opposing region in the vertical direction.

  Then, a space is formed between the facing region and the webbing 1 by the space forming unit 10, so that the webbing 1 can be easily grasped by the seated person. More specifically, by forming the above-described space, a space is secured when the seated person inserts a finger between the facing region and the webbing 1 in order to grasp the webbing 1. That is, the seated person can easily grasp the webbing 1 by inserting a finger into the space.

Hereinafter, the configuration of the space forming unit 10 according to the first embodiment will be described in detail.
As described above, the space forming portion 10 is provided in the facing region, and is configured by a recessed portion that is recessed from the periphery of the portion where the space forming portion 10 is provided. And in 1st embodiment, in order to provide this recessed part in an opposing area | region, the decorating components shown in FIG.2 and FIG.3 are used. In the first embodiment, the decorative part for forming the recess (that is, the space forming part 10) is composed of two parts, specifically, the inner part 11 and the outer part 12. Although the material of the inner part 11 and the outer part 12 is not particularly limited, for example, a resin molded product or a metal member is a suitable material.

  The inner part 11 has a rectangular frame body 11a as a main body, and the outer part 12 is accommodated in an accommodation space 11c formed inside thereof. Moreover, each part of the frame 11a has an L-shaped cross-sectional shape. And the tongue-shaped protrusion 11b is extended toward the outer side from the corner | angular part and center part of the frame 11a as shown in FIG. The tongue-like protrusion 11b is attached to the facing region of the side portion S12 with a fastener such as a bolt or a screw. More specifically, as shown in FIG. 3, a rectangular hole 4 corresponding to the outer shape of the frame body portion 11a is formed in the facing region. While the frame body part 11a is fitted into the rectangular hole 4, the tongue-like protrusion 11b is fastened to the peripheral part of the rectangular hole 4 in the side part S12.

  The outer portion 12 includes a semi-cylindrical curved portion 12a and side end portions having a substantially L-shaped cross section attached to both side ends of the curved portion 12a. The curved portion 12a is a portion that forms a recess. More specifically, when the outer portion 12 is assembled to the inner portion 11, the curved portion 12a is located inside the frame body portion 11a of the inner portion 11, that is, the accommodation space, with the recessed surface on the front surface. 11c. For the purpose of improving the decorating property of the outer portion 12, a skin material similar to the skin material 6 used as the material of the side portion S12 is attached to the concave surface of the curved portion 12a. Also good.

  Of the L-shaped side end portion, a portion forming one side is a protruding portion 12b that protrudes outward from both ends of the bending portion 12a. The overhanging portion 12 b is screwed to the frame body portion 11 a of the inner portion 11 when the outer portion 12 is assembled to the inner portion 11. Moreover, the part which makes the other side among L-shaped side edge parts is the orthogonal part 12c extended in the direction orthogonal to the overhang | projection part 12b. When the outer part 12 is assembled to the inner part 11, the orthogonal part 12 c is passed through an accommodation space 11 c formed inside the frame body part 11 a. Thereafter, as shown in FIG. 2, the orthogonal portion 12 c comes into engagement with the frame body portion 11 a at the distal end portion in the extending direction. In this way, the assembled state of the outer portion 12 and the inner portion 11 is favorably maintained by the orthogonal portion 12c engaging with the frame body portion 11a.

  Then, the decorative part formed by assembling the outer part 12 to the inner part 11 is fitted into the rectangular hole 4 formed in the side part S12 and then fixed to the side part S12, thereby forming the space forming part. 10 will function. More specifically, in the vehicle on which the vehicle seat (the main seat S) according to the first embodiment is mounted, the opening of the outer portion 12 assembled to the inner portion 11 of the decorative member is the side portion S12. It arrange | positions in an opposing area | region so that the front may be faced. On the other hand, as shown in FIG. 1, when the seat belt is in the unlocked state and is in the standby position, the webbing 1 is located at the front position of the opening. As a result, as shown in FIG. 4, when the seat belt is in the standby position in the unlocked state, the outer portion 12 is disposed between the webbing 1 and the front surface of the side portion S12 (strictly speaking, the facing region). A space corresponding to the formed recess is formed.

  In the present embodiment, as shown in FIG. 2, the length of the concave portion in the lateral width direction is longer than the width of the webbing 1. For this reason, when the seat belt is unlocked and in the standby position, one end and the other end in the width direction of the webbing 1 are positioned between one end and the other end in the lateral width direction of the recess. Here, the lateral width of the recess is the opening width of the recess, and the lateral width direction is a direction along the width direction of the sheet S.

  If it demonstrates easily, the both ends of the horizontal width direction of a recessed part are each located outside the edge | side of a corresponding side among the width direction both ends of the webbing 1, respectively. For this reason, although the size of the recess (especially the length in the lateral width direction) increases, it becomes possible to insert a finger into the space in the recess from each of the widthwise ends of the webbing 1. Thereby, the seated person can grip the webbing 1 more easily.

  In the above-described embodiment, both the ends in the lateral width direction of the recesses are positioned outside the corresponding ends of the webbing 1 in the width direction. However, the present invention is not limited to this, and it is assumed that only one of the both ends in the width direction of the recess is located outside the corresponding side of both ends in the width direction of the webbing 1. Also good. In other words, when the seat belt is unlocked and at the standby position, one end (left end) of the recess in the width direction is farther from the other end (right end) in the width direction of the webbing 1 than one end (left end) in the width direction of the webbing 1. And the other end in the lateral width direction of the recess may be located between one end and the other end in the width direction of the webbing 1. In such a positional relationship, the concave portion is provided at a position close to one end side in the width direction of the webbing 1. According to this configuration, for example, when inserting a finger into the space in the recess, the insertion is performed only from one end side (left side) in the width direction of the webbing 1. Although there are some restrictions on the direction in which the finger is inserted in this way, according to the above configuration, the size of the recess can be further reduced.

  If importance is attached to the size of the recess rather than the ease of gripping the webbing 1, both ends in the width direction of the recess may be located inside the both ends in the width direction of the webbing 1.

  Moreover, in 1st embodiment, as shown in FIG.1 and FIG.3, the length in the direction (namely, up-down direction) which cross | intersects the horizontal width direction of a recessed part becomes longer than the length in a horizontal width direction among the dimensions of a recessed part. ing. If it demonstrates easily, in 1st embodiment, the recessed part which makes the space formation part 10 is a vertically long recessed part. In this case, the space in the recess is also formed vertically. Since the vertically long recess is formed in this way, the seated person can easily grasp the webbing 1 regardless of the body shape (specifically, the sitting height).

  Moreover, in 1st embodiment, the recessed part which makes the space formation part 10 becomes a cross-sectional shape which can grasp the webbing 1 more easily. If it demonstrates concretely, the recessed part is provided with the opening which the webbing 1 faces, and the bottom face located on the opposite side to an opening. And in 1st embodiment, the area of the opening of a recessed part is wider than the area of the bottom face of a recessed part. More specifically, as shown in FIG. 4, the recess according to the first embodiment is widened from the bottom surface toward the opening end. In this way, if the opening has a shape that is wider than the bottom surface in the recess, it is easier to insert a finger into the recess, and the webbing 1 can be more easily gripped.

  About the opening degree from the bottom face to an opening in a recessed part, the opening degree in the up-down direction is smaller than the opening degree in the width direction. In other words, the difference between the length of the opening in the vertical direction and the length of the bottom surface is smaller than the difference between the length of the opening in the lateral width direction and the length of the bottom surface. With such a magnitude relationship, the size of the recess can be made smaller.

  In the first embodiment, as shown in FIG. 3, the parts constituting the space forming unit 10 and the parts constituting the peripheral portion located around the space forming part 10 are different from each other. Specifically, the space forming part 10 is configured by a decorative part, and the decorative part is fitted into the rectangular hole 4 formed in the opposing region of the side part S12 of the seat back S1 to be in the sheet S. Built in. And the decorative component of the state integrated in this sheet | seat S is combined and integrated with the part in the periphery of the said decorative component among the side parts S12. Thus, in 1st embodiment, the freedom degree at the time of shape | molding the space formation part 10 becomes high because the components which comprise the space formation part 10 are a different body from the surrounding components. Therefore, in the first embodiment, the space forming portion 10 formed into a desired shape can be obtained more easily.

  On the other hand, in the configuration in which the components forming the space forming unit 10 and the peripheral components thereof are separate from each other, the sheet manufacturing cost is increased accordingly. On the other hand, if the parts forming the space forming part 10 and the peripheral parts are integrally formed, the cost can be further reduced. As such a method, for example, when the side portion S12 (strictly speaking, the resin plate 5 serving as the base portion of the side portion S12) is formed by a vacuum forming method, the above-described concave portion is integrated with the side portion S12. It is conceivable to mold (simultaneously).

  By the way, in 1st embodiment, the space formation part 10 consisted of a recessed part, and decided to consist of a recessed part formed especially by a semi-cylinder-shaped component (specifically, the outer part 12 of a decorative component). Here, the shape of the recess is not particularly limited. For example, the recess may be formed by a bowl-shaped part as shown in FIG. The component illustrated in FIG. 5 corresponds to a modification of the outer part 12 of the decorative part that forms the recess, and is hereinafter referred to as an outer part 12X according to the modification. As shown in the figure, the outer part 12X according to this modification includes a bowl-shaped part 12Xa that functions as a part that forms a recess, and a bowl-shaped part 12Xb that corresponds to the peripheral edge of the opening end of the bowl-shaped part 12Xa. Have. The pot-shaped portion 12Xa corresponds to the curved portion 12a of the outer portion 12 described above, and the bowl-shaped portion 12Xb corresponds to the protruding portion 12b of the outer portion 12. And the bowl-shaped recessed part comes to be formed by using the outer part 12X which concerns on a modification.

  In the first embodiment, as described above, the space forming portion 10 is formed of a concave portion, but the present invention is not limited to this. In other words, the space forming portion 10 is not limited to the concave portion, and may be formed from the convex portion as long as it forms a space between the facing region and the webbing 1 when the seat belt is in the standby position in the unlocked state. It may be.

<< About Second Embodiment >>
Next, a second embodiment will be described with reference to FIGS. In the following, in the second embodiment, parts different from the first embodiment will be described, and description of parts common to the first embodiment will be omitted.

  In the second embodiment, the airbag module M is built in the side part S12 of the seat back S1. The air bag module M is a module in which an air bag (strictly, a side air bag) that swells when a side impact load is applied to a vehicle and its related equipment are modularized. In the second embodiment, as shown in FIG. 6, an airbag module M (shown by a broken line in FIG. 6) is disposed behind the facing region in the side portion S <b> 12.

  And in 2nd embodiment, the space formation part 20 is provided in the part which remove | deviated from the part by which the airbag module M is arrange | positioned in the back side in the opposing area | region. More specifically, as shown in FIG. 6, the space forming portions 20 are respectively provided at the upper position and the lower position of the portion where the airbag module M is disposed on the rear side. Although each space formation part 20 is different in terms of size (particularly the length in the vertical direction), the function and basic structure are common to the space formation part 10 according to the first embodiment. Thus, in 2nd embodiment, the space formation part 20 is provided in the part which remove | deviated from the part in which the airbag module M was arrange | positioned in the back side in the opposing area | region, and the space formation part 20 is an airbag module. It is possible to suppress the influence on the operation of M (intelligibility, the expansion of the airbag).

  In the case illustrated in FIG. 6, the space forming portions 20 are respectively provided at the upper position and the lower position of the portion that is out of the portion where the airbag module M is disposed on the rear side in the facing region. However, the present invention is not limited to this, and as shown in FIG. 7, the space forming portion 20 may be provided only at a position below the portion where the airbag module M is disposed on the rear side.

  In addition, as shown in FIG. 8, the space forming unit 20 may be arranged at a portion arranged at a position different from the arrangement position of the airbag module M in the left-right direction. At this time, in the side portion S12, the space forming portion 20 is disposed so as to avoid the location where the webbing Ma extending from the airbag module M is connected, that is, the location that becomes the breaking line TL when the airbag is expanded. Good. In FIG. 8, for convenience of illustration, the space forming portions 20 are provided on both sides of the breaking line TL, but in reality, the space forming portions 20 may be provided on either one of them. In other words, if the webbing 1 is positioned on the right side of the breaking line TL when the seat belt is unlocked and in the standby position, the space forming portion 20 is preferably provided on the right side of the breaking line TL. If 1 is located on the left side of the breaking line TL, the space forming portion 20 is preferably provided on the left side of the breaking line TL.

  Although not particularly illustrated, the space forming portion 20 may be provided in a portion where the airbag module M is disposed on the rear side in the facing region. With such a configuration, it is possible to efficiently arrange the space forming portion 20 by effectively utilizing the space located between the webbing 1 and the airbag module M.

<< About the third embodiment >>
Next, a third embodiment will be described with reference to FIGS. 9 and 10. In the following, in the third embodiment, parts different from the first embodiment will be described, and description of parts common to the first embodiment will be omitted.

  In the third embodiment, as shown in FIG. 9, a belt reacher 60 as an extrusion mechanism is attached to an upper portion of the facing region. The belt leecher 60 will be described. As shown in FIG. 10, the belt leecher 60 is provided with an extruded body 61 having a substantially triangular shape in a side view. The extruded body 61 is accommodated in an accommodation space provided in the side portion S12 of the seat back S1. Further, the pusher 61 is supported by a rotating shaft 61a provided in the accommodation space, and can be rotated forward and backward and vertically. The pusher 61 receives a force from an actuator (not shown) and rotates around the rotation shaft 61a.

  When the extruded body 61 is at one end position (the position indicated by the broken line in FIG. 10) of the rotation range, the extruded body 61 is completely accommodated in the accommodating space provided in the side portion S12. In such a state, the extruded body 61 does not protrude forward from the front surface of the side portion S12, and the opening of the accommodation space is substantially blocked by the top surface of the extruded body 61 as shown in FIG. Become. On the other hand, when the extruded body 61 is at the other end position of the rotation range (the position shown by the solid line in FIG. 10), the apex portion of the extruded body 61 is somewhat forward of the front surface of the side portion S12. Protruding. As a result, the apex portion of the extruded body 61 comes into contact with the rear surface of a part of the webbing 1 of the seatbelt located immediately before, and pushes the part forward.

  As described above, in the third embodiment, since the belt reacher 60 is attached, the webbing 1 is more easily gripped by the function when the seat belt is worn. Furthermore, in 3rd embodiment, the space formation part 40 is formed in the part which remove | deviated from the part to which the belt reacher 60 is attached in the up-down direction in the opposing area | region. More specifically, as shown in FIG. 9, the space forming portion 40 is provided in a position below the portion where the belt reacher 60 is attached in the facing region. In addition, although the space formation part 40 which concerns on 3rd embodiment differs in terms of a size (especially length in an up-down direction), about the function and basic structure, it is common with the space formation part 10 which concerns on 1st embodiment.

  As described above, in the third embodiment, the belt reacher 60 and the space forming unit 40 are used in combination. With such a configuration, it is possible to more easily grasp the webbing 1 of the seat belt by using the space forming unit 40 while effectively utilizing the belt reacher 60. In the third embodiment, the belt reacher 60 and the space forming unit 40 can be used complementarily. For example, the push-out amount (rotation amount) of the push-out body 61 is reduced, and the function for the lost amount is compensated by the space forming unit 40. As a result, in the third embodiment, it is possible to secure the ease of gripping the webbing 1 while suppressing the size of the belt reacher 60. Moreover, according to the above configuration, in the third embodiment, it is possible to efficiently arrange the space forming portion 40 by effectively using the space below the belt leecher 60.

  In the above embodiment, the space forming portion 40 is provided at a position below the portion where the belt reacher 60 is attached in the facing region, but the present invention is not limited to this. You may provide the space formation part 40 in the upper position of the part to which the belt reacher 60 is attached. Or the space formation part 40 may be provided in both the upper position and lower position of the part to which the belt reacher 60 is attached.

<< About the fourth embodiment >>
Next, a fourth embodiment will be described with reference to FIGS. In the following, in the fourth embodiment, parts different from the first embodiment will be described, and description of parts common to the first embodiment will be omitted.

  Also in the fourth embodiment, like the other embodiments, the fourth embodiment is provided in the facing region in the front surface of the side portion S12 of the seat back S1. And in 4th embodiment, the components which comprise the space formation part 50 become a movable member which can switch an exposed surface by moving. Here, the exposed surface is a surface that is located on the front surface of the side portion S12 and that faces the webbing 1 when the seat belt is in the unlocked state and is located in the facing region.

  The space forming unit 50 according to the fourth embodiment will be described in detail. The movable member constituting the space forming unit 50 is a rotating member 51 that is rotatably supported by a rotating shaft 51a. The axial direction of the rotation shaft 51a is along the width direction of the sheet S. The rotating member 51 has two surfaces disposed on opposite sides of the rotating shaft 51a. The first surface 52, which is one surface, corresponds to the formation surface of the recess, and is a curved surface in which an arc-shaped depression is formed as shown in FIGS. More specifically, the first surface 52 is curved so that the central portion in the rotation direction of the rotating member 51 is depressed. In addition, as shown in FIGS. 11 and 12, both end portions in the rotation direction of the first surface 52 are slightly raised from the central portion.

  Of the two surfaces of the rotating member 51, the second surface 53, which is the other surface, is not formed with a depression and is a surface along the front surface shape of the seat back S1. Further, in the configuration shown in FIGS. 11 and 12, the second surface 53 is configured by a skin material 54 attached to the rotating member 51. The skin material 54 is the same as the skin material 6 used in the side portion S12.

  The rotating member 51 is accommodated in a semi-cylindrical cavity portion 7 formed in the side portion S12. Then, when the rotating member 51 rotates in the cavity portion 7, the surface exposed in the facing region of the first surface 52 and the second surface 53 is switched. That is, the rotating member 51 rotates around the rotation shaft 51a, so that only the second surface 53 of the first surface 52 and the second surface 53 is exposed in the facing region, and the first surface 52 in the facing region. And the second surface 53 reciprocates between the position where the first surface 52 is exposed. Note that the position where only the second surface 53 of the first surface 52 and the second surface 53 is exposed in the facing region corresponds to the position where the formation surface of the concave portion is out of the facing region, specifically in FIG. In the following, it is referred to as a normal position. On the other hand, the position where the first surface 52 of the first surface 52 and the second surface 53 is exposed in the facing region corresponds to the position where the formation surface of the recess is exposed in the facing region, specifically, the position shown in FIG. Hereinafter, it is referred to as a recess forming position.

  A state in which the rotating member 51 is in the normal position and a state in which the rotating member 51 is in the recess forming position will be described. In the state in the normal position, the second surface 53 is exposed through the opening of the cavity portion 7. When the rotating member 51 is in the normal position, the second surface 53 is in a position continuous with the peripheral surface of the second surface 53 in the front surface of the side portion S21 as shown in FIG. Furthermore, the 2nd surface 53 is comprised by the skin material 54 same as the skin material 6 used for side part S12. Thereby, in the state where the rotating member 51 is in the normal position, the rotating member 51 and its peripheral portion appear as if they are integrated. Thus, when the seat belt is not worn, the rotating member 51 is placed in the normal position so as to hide the rotating member 51 (strictly, the recess formed in the first surface 52) and ensure the design of the seat. It becomes possible to do.

  Further, when the rotating member 51 rotates from the normal position to reach the recessed portion forming position, the first surface 52 is exposed through the opening of the cavity portion 7 as shown in FIG. When the first surface 52 is exposed, a space is formed between the facing region in the front surface of the side portion S12 and the webbing 1, as shown in FIG. That is, the recessed portion forming position is a position where the rotating member 51 at the normal position is rotated when the seated person wears the seat belt. And it becomes possible to hold | grip webbing 1 more easily by utilizing the recessed part formed when the rotation member 51 is located in a recessed part formation position.

  Further, in a state where the rotating member 51 is in the recess forming position, both end portions in the rotation direction (corresponding to portions surrounding the recess) protrude somewhat outside the cavity portion 7 in the first surface 52 as shown in FIG. Yes. Both ends of the protruding first surface 52 in the rotation direction (particularly, the upper end in FIG. 12) press against the rear surface of the webbing 1 immediately before the first surface 52 and push the webbing 1 forward. As described above, in the fourth embodiment, the rotating member 51 has the same function as the belt leecher 60 of the third embodiment, and is also used as the space forming unit 50 and the belt leecher.

  Furthermore, when the rotating member 51 rotates from the normal position to the recessed portion forming position, as shown in FIG. 12, the corner of the rotating member 51 (specifically, the corner positioned on the upper end side of the second surface 53). The portion surrounded by a broken line in FIG. 12 is brought into contact with and locked to the inner wall surface of the cavity portion 7 in the side portion S12. Thereby, it is possible to restrict the rotation member 51 from rotating further in the same rotation direction, and to keep the rotation member 51 in the recess forming position. As described above, the corner portion of the rotating member 51 functions as a positioning portion that holds the position of the rotating member 51. And the rotation member 51 is hold | maintained in the recessed part formation position mentioned above by exhibiting the function as the said positioning part, and comes to be utilized as the space formation part 50 and a belt reacher.

  In the above embodiment, the component forming the space forming unit 50 is the rotating member 51, and the state in which the concave portion appears and the state in which the concave portion is hidden are switched by the rotation of the rotating member 51. With such a configuration, it is possible to more easily switch between the two states. However, the present invention is not limited to this, and the components constituting the space forming portion may be switched between the two states by a movable member other than the rotating member 51, for example, a sliding movement.

  Further, the recess formed in the first surface 52 of the rotating member 51 may be used for purposes other than the purpose of forming a space with the webbing 1 of the seat belt, and specifically, for storing small items. It may be used for providing a space. As a result, the rotating member 51 as the space forming portion is also used as a space for storing small items, so that the rotating member 51 can be used more effectively.

1 Webbing (belt part)
1a tongue 2 buckle 3 outlet 4 rectangular hole 5 resin plate 6 skin material 10, 20, 40, 50 space forming part 11 inner part 11a frame body part 11b tongue-like protrusion 11c accommodation space 12 outer part 12a curved part 12b overhang part 12c Orthogonal portion 12X Outer portion 12Xa Bowl-shaped portion 12Xb Bowl-shaped portion 51 Rotating member 51a Rotating shaft 52 First surface 53 Second surface 54 Skin material 60 Belt reacher 61 Extruding body 61a Rotating shaft M Airbag module Ma Force Cloth S This sheet S1 Seat back S11 Support part S12 Side part S2 Seat cushion S3 Headrest TL Break line

Claims (10)

A vehicle seat having a support part for supporting the back of a seated person from the rear, a side part located on a side of the support part, and an airbag module accommodated in the side part,
The side portion includes a resin plate and a skin material that covers the resin plate,
The resin plate is disposed at a position different from the space forming portion including a recess having a bottom portion and side walls provided on both sides of the bottom portion, and accommodates the airbag module. A recess ,
At least a portion of the space forming portion faces the belt portion of the seat belt when the seat belt is in the unlocked state and in the standby position.
At least a part of the space forming portion is provided on the support portion side with respect to the airbag module ,
The said side wall located in the said support part side among the said space formation parts is located in the said support part side in a sheet | seat width direction rather than the side wall located in the said support part side among the said accommodation recessed parts, It is characterized by the above-mentioned. Vehicle seat. Having a webbing extending from the airbag module;
The vehicle seat according to claim 1, wherein the concave portion is provided on the support portion side with respect to a break portion that connects the baffle and the skin material. The front surface of the side portion has a facing region that faces the belt portion of the seat belt when the seat belt is in a standby position in an unlocked state,
The vehicle seat according to claim 2, wherein at least a part of the belt portion is provided on the support portion side with respect to the fracture portion.   When the seat belt is at the standby position in the unlocked state, one end in the lateral width direction of the recess is positioned farther from the other end in the width direction of the belt portion than one end in the width direction of the belt portion. The vehicle seat according to claim 3, wherein the other end of the recess in the width direction is located between the one end and the other end in the width direction of the belt portion.   When the seat belt is at the standby position in the unlocked state, one end and the other end in the width direction of the belt portion are positioned between one end and the other end in the width direction of the recess. The vehicle seat according to claim 3. The lateral width direction of the recess is along the width direction of the vehicle seat,
Of the dimensions of the recess than the length in the width direction of the recess, the length in the vertical direction intersecting the width direction of the recess rather long,
The side wall located on the support part side in the space forming part and the side wall located on the support part side in the housing recess are arranged at positions that are discontinuous in the resin plate. The vehicular seat according to any one of claims 1 to 5 characterized by things. The concave portion includes an opening facing the belt portion, and a bottom surface located on the opposite side of the opening,
The vehicle seat according to claim 3, wherein an area of the opening is larger than an area of the bottom surface.   A part constituting the space forming part and a part constituting a peripheral part located around the space forming part are separate parts and integrated in a combined state. The vehicle seat according to any one of claims 1 to 7. Having a webbing extending from the airbag module;
The concave portion is provided on the support portion side with respect to an end portion of the blanching fixed to the airbag module .
The said recessed part is formed in the position which overlaps with the said airbag module in an up-down direction, and is arrange | positioned in the upper position rather than the said airbag module, The Claim 1 thru | or 8 characterized by the above-mentioned. Vehicle seats. The vehicle seat according to any one of claims 1 to 9, wherein the space forming portion formed of the concave portion is configured as a concave portion of a decorative component disposed on a surface of the skin material. .