JP6439407B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat installed in a vehicle having a seat belt.

  In a vehicle having a rear seat, a luggage compartment, and a tailgate (back door) at the rear of the vehicle body and having no wall separating the rear seat and the luggage compartment, the rear seat may be equipped with a seat slide mechanism. In this type of vehicle, the luggage compartment can be widened by moving the rear seat forward, and conversely, if the rear seat is moved backward, the space between the rear seat and the front seat can be widened. The living space for passengers sitting in

  A vehicle having a front seat and a rear seat includes a seat belt device for a front seat and a seat belt device for a rear seat. The seat belt device includes a seat belt, a buckle disposed in the vicinity of a seat cushion (seat portion), a shoulder belt anchorage fixed to a vehicle interior wall such as a pillar, a retractor that winds up the seat belt, and a seat belt A tongue provided in the middle of the length direction is included. One end of the seat belt is fixed to the vehicle body side by a waist belt anchorage. The surplus portion on the other end side of the seat belt is wound up by the retractor.

  As in the belt holding device disclosed in Patent Document 1, it has also been proposed to provide a belt hook on the seat back or the vehicle interior wall that can hold a tongue or a seat belt. The belt hook of Patent Document 1 is a separate part from the seat and the seat belt, and has a belt holding portion formed into a hook shape by resin or the like.

JP-A-6-328995

  In a vehicle including a seat slide mechanism that can move in the front-rear direction of the vehicle, the tongue may be located on the back side of the seat back when the seat is moved forward. In this case, in order for the occupant to wear the seat belt, it is necessary to pull the seat belt forward while twisting the body backward and grasping the tongue by hand. For this reason, it is difficult to wear the seat belt, and there is room for improvement in facilitating the handling of the seat belt.

  The belt hook disclosed in Patent Document 1 is a separate part from the seat and the seat belt, and has a belt holding portion that is molded into a hook shape by resin or the like. It is not preferable for preventing injury. In addition, the structure in which the belt hook is attached to the seat or the vehicle interior wall has a problem that the number of parts increases and the installation work is troublesome.

  Accordingly, an object of the present invention is to provide a vehicle seat that makes it easy to handle the seat belt even when the seat is moved forward.

The present invention has a seat cushion and a seat back, and the seat back is located on one side portion located on the vehicle interior wall side, on the other side portion located on the vehicle interior center side, and between these side portions. A vehicle seat including a seat back body portion, a first support portion formed of an upper convex portion formed at an upper end of the one side portion, and a lower portion formed at a lower portion of the one side portion. And a second support portion made of a convex portion on the side. The first support part projects forward from the front of the seat back to support the shoulder belt part in a state where the shoulder belt part of the seat belt is along the front of the seat back, and the shoulder belt part faces the side of the seat. to prevent the movement of sliding Te. The second support portion is also projected toward the front of the vehicle, the shoulder belt portion supports the tongue of the seat belt in a state in which along with the seat back front, to suppress said tongue is moved upward.

  In one embodiment, the protrusion amount of the first support part from the front surface of the seat back is larger than the protrusion amount of the second support part from the front surface of the seat back. With this configuration, the shoulder belt portion can be made difficult to come off from the first support portion. The first support part may have a slope contacting the shoulder belt part, and the second support part may have a lower surface contacting the tongue. In this embodiment, the upper convex portion and the lower convex portion may each include a pad member and a cover member that are common to the seat back main body portion. Further, the upper convex portion and the lower convex portion may be provided with a different hardness pad member made of a resin foam harder than the pad member of the seat back main body portion.

  In another embodiment, the first support part and the second support part may be respectively formed on an upper part and a lower part of a vertically long bulging part extending in the vertical direction. In this embodiment, the raised portion may include a different hardness pad member made of a resin foam harder than the pad member of the seat back main body.

  According to the vehicle seat of the present invention, the seat belt and the tongue along the front surface of the seat back are held on the front side of the seat back by the first support portion and the second support portion in a state where the seat is moved forward. can do. For this reason, the operation of wearing the seat belt becomes easy. In addition, since both the first support portion and the second support portion are part of the seat back, it is not necessary to attach another part like a conventional belt hook or the like, and it is safe.

The perspective view which shows a vehicle seat and a part of vehicle compartment which concern on 1st Embodiment. Sectional drawing which follows the horizontal direction of the 1st support part of the sheet | seat. Sectional drawing which follows the horizontal direction of the 2nd support part of the sheet | seat. The side view of a part of seat back of the seat. The perspective view of the state in which the tongue of the sheet | seat was inserted in the buckle. The perspective view of the state which moved the sheet | seat back. The perspective view of the state which fell the seat back of the other sheet | seat ahead. The perspective view which shows the vehicle seat which concerns on 2nd Embodiment.

  A vehicle seat according to the first embodiment will be described below with reference to FIGS. 1 to 7. FIG. 1 shows a part of a passenger compartment 11 formed inside the vehicle 1. An arrow F in FIG. 1 is the front of the vehicle 1. Divided rear seats (first seat 12 and second seat 13) are arranged in the passenger compartment 11 in parallel to each other.

  The first seat 12 includes a seat cushion 20 on which an occupant sits and a seat back 21. The second seat 13 also includes a seat cushion 25 and a seat back 26. A luggage compartment 30 and a tailgate 31 are provided behind the seats 12 and 13. The seats 12 and 13 are disposed on the floor 32 of the vehicle body.

  The seat back 21 of the first seat 12 is positioned between one side portion 21a located on the vehicle interior wall 11a side, the other side portion 21b located on the vehicle interior center side, and both side portions 21a and 21b. And a seat back main body portion 21c. A seat back front surface 35 in contact with a seated person is formed on the vehicle front side of the seat back main body portion 21c. The side portion 21a has a seat side surface 36 facing the vehicle interior wall 11a.

The seat back 26 of the second seat 13 is also positioned between one side portion 26a located on the vehicle interior wall 11b side, the other side portion 26b located on the vehicle interior center side, and both side portions 26a and 26b. And a seat back main body portion 26c. The second sheet 13 is substantially the same as the first sheet 12 except that the second sheet 13 is symmetrical with the first sheet 12. For this reason, hereinafter, the first sheet 12 will be described as a representative.
FIG. 2 is a cross-sectional view along the horizontal direction near the upper end of the seat back 21. FIG. 3 is a cross-sectional view of the lower portion of the seat back 21 along the horizontal direction. Arrow F is the front of the vehicle. The seat back 21 is configured by a frame member 40, a pad member 41 made of a foamed resin such as urethane foam, a cover member (for example, a stitched woven fabric) 42 covering the pad member 41, and the like. A thin intermediate layer such as wadding may be provided on the back side of the cover member 42. A spring assembly 43 made of a spring member such as an S spring or a tension coil spring is disposed inside the seat back 21.

  The first seat 12 can be moved in the front-rear direction by a seat slide mechanism 51 (shown in FIG. 1) that can move in the front-rear direction of the vehicle 1. The second seat 13 can also be moved in the front-rear direction by the same seat slide mechanism 52. FIG. 1 shows a state in which the sheets 12 and 13 are moved to the front side. FIG. 6 shows a state in which the sheets 12 and 13 are moved rearward.

  Each of the seat slide mechanisms 51 and 52 includes a slide rail extending in the front-rear direction of the vehicle 1, an adjustment mechanism having operation members 53 and 54, and the like. In the case of the manual seat slide mechanisms 51 and 52, the seats 12 and 13 can be moved to desired longitudinal positions by operating the operation members 53 and 54. In the case of an electric slide mechanism, the position of the seats 12 and 13 in the front-rear direction can be adjusted by operating an electric motor using a vehicle-mounted battery as a power source with a switch.

  The seat backs 21 and 26 are respectively attached to the rear portions of the seat cushions 20 and 25 so as to be pivotable in the front-rear direction by a reclining mechanism 61 having a hinge portion. When the lever 63 (only one is shown in FIG. 1) is released, the seat backs 21 and 26 can be tilted forward and stacked on the seat cushions 20 and 25.

  The vehicle 1 includes a seat belt device 71 for an occupant seated on the first seat 12 and a seat belt device 72 for an occupant seated on the second seat 13. These seat belt devices 71 and 72 are symmetrical with each other, but since the substantial configuration is common to each other, one seat belt device 71 will be described hereinafter, and the other seat belt device 72 will be Parts common to those of the seat belt device 71 are denoted by common reference numerals and description thereof is omitted.

  The seat belt device 71 includes a seat belt 75, a waist belt anchor 76 that fixes one end of the seat belt 75 to the vehicle body, a shoulder belt anchor 77 fixed to the vehicle interior wall 11a such as a pillar, and the seat belt 75. A tongue 78 provided in the middle of the seat belt 75 in the longitudinal direction, a buckle 80 disposed on the center side of the passenger compartment of the seat cushion 20, and the like. The surplus portion on the other end side of the seat belt 75 is wound up by the retractor 78.

  The seat belt 75 includes a waist belt portion 75a from the waist belt anchorage 76 to the tongue 79, a shoulder belt portion 75b from the tongue 79 to the shoulder belt anchorage 77, and a winding portion from the shoulder belt anchorage 77 to the retractor 78. 75c etc. are included. A tongue stopper 85 is provided in the middle of the seat belt 75 in the length direction. The tongue 79 can move in the length direction of the seat belt 75, but the tongue 79 is restricted by the tongue stopper 85 from moving below the seat cushion 20.

  A first support portion 91 including an upper convex portion 90 is formed at the upper end of one side portion 21 a of the seat back 21. FIG. 2 shows a cross section of the upper projection 90 along the horizontal direction. The upper convex portion 90 protrudes forward of the vehicle from the seat back front surface 35. The upper convex portion 90 is formed integrally with the seat back main body portion 21c by a pad member 41, a cover member 42 and the like common to the seat back main body portion 21c.

  The first support portion 91 including the upper convex portion 90 includes an inclined surface 92 that continues to the seat back front surface 35. The inclined surface 92 is inclined so that the amount of forward protrusion increases as it approaches the seat side surface 36. As shown in FIGS. 1 and 2, when the shoulder belt portion 75 b of the seat belt 75 is disposed along the seat back front surface 35, the shoulder belt portion 75 b comes into contact with the inclined surface 92 of the first support portion 91. The shoulder belt portion 75b is restrained from moving in the direction of the seat side surface 36.

  A second support portion 96 composed of a lower convex portion 95 is formed integrally with the seat back main body portion 21c below the side portion 21a of the seat back 21 (below the upper convex portion 90). The lower convex portion 95 protrudes forward of the vehicle, like the upper convex portion 90. The lower convex portion 95 includes a lower surface 97 (shown in FIG. 4 and the like) that protrudes forward from the seat back front surface 35 to the front of the vehicle. As shown in FIG. 4, the protrusion amount H <b> 2 of the second support portion 96 is smaller than the protrusion amount H <b> 1 of the first support portion 91. In a state where the seat back 21 stands, the lower surface 97 of the lower convex portion 95 is a slope that rises forward.

  FIG. 3 shows a cross section of the lower projection 95 along the horizontal direction. The lower convex portion 95 is configured by a pad member 41, a cover member 42, and the like common to the seat back main body portion 21c. As shown in FIG. 3, since the width W1 of the tongue 79 is larger than the width W2 of the seat belt 75, the side portion 79a of the tongue 79 can be brought into contact with the lower surface 97 of the convex portion 95. A tongue stopper 85 (shown in FIGS. 1 and 5, etc.) is supported by the tongue 79 so that the tongue 79 is positioned in the vicinity of the convex portion 95.

  As shown in FIG. 1, when the seat 12 is moved to the forward movement position and the waist belt anchorage 76 and the shoulder belt anchorage 77 are located on the rear side of the seatback 21, the shoulder belt portion 75b of the seat belt 75 that is not used is used. Along the seat back front surface 35, a part of the shoulder belt portion 75b is disposed in the vicinity of the slope 92 of the first support portion 91 as shown in FIG. Further, as shown in FIG. 3, the tongue 79 is applied to the lower surface 97 of the second support portion 96 from the lower side in a state where the seat belt 75 is placed along the front surface 35 of the seat back.

  Under this state, when tension due to the retracting action of the retractor 78 is applied to the seat belt 75, the shoulder belt portion 75b contacts the first support portion 91, so that the shoulder belt portion 75b slides toward the seat side surface 36. It is restrained from moving. Further, when the tongue 79 hits the lower surface 97 of the second support portion 96, the tongue 79 and the seat belt 75 are prevented from moving upward (raised).

  Since the shoulder belt portion 75b and the tongue 79 are thus held on the seat back front surface 35, the tongue 79 exists near the occupant's hand when the occupant sits on the seat 12. For this reason, the tongue 79 can be easily grasped. Since the shoulder belt portion 75b is also along the seat back front surface 35, the shoulder belt portion 75b can be easily grasped. Therefore, the seat belt 75 can be easily attached.

  Further, when the seat belt 75 is not used, the tension due to the winding of the retractor 78 acts on the seat belt 75, so that the shoulder belt portion 75 b and the tongue 79 are seated back by the first support portion 91 and the second support portion 96. It is held on the front surface 35. For this reason, even if the vehicle shakes during traveling, it is possible to prevent noise generated by the tongue 79 hitting the trim material on the vehicle interior wall. Moreover, since the first support portion 91 and the second support portion 96 are a part of the seat back 21, it is not necessary to retrofit another part such as a belt hook to the seat or the vehicle body, and the number of parts increases and the number of assembling steps increases. There is no problem such as that, and it is safe.

  FIG. 5 shows a state in which the tongue 79 is inserted into the buckle 80 (occupants are omitted). In order for the occupant sitting on the seat 12 to wear the seat belt 75, as is well known, the waist belt portion 75a extends along the lumbar portion of the occupant, and the shoulder belt portion 75b extends obliquely from the occupant's shoulder to the waist. 79 is inserted into the buckle 80 and fixed.

  FIG. 6 shows a state in which the sheets 12 and 13 are moved (slid) rearward from the forward movement position shown in FIG. When the seats 12 and 13 are moved rearward and the shoulder belt portions 75b and the tongues 79 are positioned beside or forward of the seat backs 21 and 26, the seat belts 75 can be attached by grasping the tongues 79.

  FIG. 7 shows a state in which the second seat back 26 has fallen forward and overlapped on the seat cushion 25. Similarly, the first seat back 21 can be tilted forward and stacked on the seat cushion 20. When the seat back 21 falls forward, the shoulder belt portion 75b moves while sliding toward the seat side surface 36 along the slope 92 as shown by an arrow A in FIG. 2, and finally the shoulder belt portion 75b is the first support. Depart from part 91. Further, in the second support portion 96, the tongue 79 is detached from the second support portion 96 by moving upward while sliding on the lower surface 97. For this reason, when the seat back 21 is tilted, it is possible to prevent the seat belt 75 from hindering the tilting operation of the seat back 21.

  The upper convex portion 90 and the lower convex portion 95 of this embodiment are both provided only on one side portion 21a (side portion on the vehicle interior wall side) of the seat back 21. That is, no convex portion corresponding to the convex portions 90 and 95 is formed on the side portion 21b on the vehicle center side. For this reason, the convex portions 90 and 95 do not hit the buckle 80 in a state where the seat back 21 is tilted forward and overlapped on the seat cushion 25. Therefore, the seat back 21 can be overlapped with the seat cushion 25 sufficiently closely.

  As another embodiment, different hardness is used for the upper protrusion 90 and the lower protrusion 95 by using different hardness pad members such as hard urethane having higher hardness than the pad member 41 of the seat back main body 21c. The pad member may be integrally formed with the pad member 41. As described above, when the partially different hardness pad member is used for the convex portions 90 and 95 as necessary, the first support portion 91 and the second support portion 96 can be made harder than the seat back main body portion 26c. Therefore, the shoulder belt portion 75b and the tongue 79 can be more reliably supported.

  FIG. 8 shows vehicle seats 12 'and 13' according to the second embodiment. Long vertical ridges 100 extending in the vertical direction are formed on the side portions of the seat backs 21 ′ and 26 ′ on the vehicle interior wall side. The raised portion 100 is configured by a pad member, a skin, and the like common to the seat back main body portion. Moreover, the raised portion 100 is formed so that the upper convex portion 90 and the lower convex portion 95 are integrally connected. A slope 92 is formed on the first support portion 91 formed by the upper convex portion 90. A lower surface 97 is formed on the second support portion 96 including the lower convex portion 95. Since other configurations and effects are the same as those of the seat backs 21 and 26 of the first embodiment (FIGS. 1 to 7), the same portions as those of the first embodiment are denoted by the same reference numerals and described. Omitted.

  As yet another embodiment, a partially different hardness pad member formed by foam molding a resin foam harder than the pad member of the seat back main body portion simultaneously with the pad member of the seat back main body portion on the pad member of the raised portion 100. It may be used. When such a partially different hardness pad member is used for the raised portion 100, the first support portion 91 and the second support portion 96 can be made harder than the seat back main body portion.

  In carrying out the present invention, the vehicle seat and seat of the present invention, such as the first support portion consisting of the upper convex portion and the second support portion consisting of the lower convex portion, including the shape and design of the seat, etc. Needless to say, the structure and arrangement of the elements constituting the belt device can be changed as appropriate. Further, the present invention can be applied to the front seat, and can also be applied to the second seat or the last seat in a vehicle having three rows of seats.

  DESCRIPTION OF SYMBOLS 11 ... Car interior, 11a, 11b ... Car interior wall, 12, 13 ... Seat, 20 ... Seat cushion, 21 ... Seat back, 21a ... One side part, 21b ... The other side part, 21c ... Seat back main-body part, 25 ... Seat cushion, 26 ... Seat back, 26a ... One side, 26b ... The other side, 26c ... Seat back body, 35 ... Seat back front, 36 ... Seat side, 71, 72 ... Seat belt device, 75 ... Seat belt, 75a ... Waist belt portion, 75b ... Shoulder belt portion, 76 ... Waist belt anchorage, 77 ... Shoulder belt anchorage, 79 ... Tongue, 90 ... Upper convex portion, 91 ... First support portion, 92 ... slope, 95 ... lower convex part, 96 ... second support part, 97 ... lower surface, 100 ... raised part

Claims (7)

A seat cushion and a seat back, wherein the seat back is one side portion located on the vehicle interior wall side, the other side portion located on the vehicle interior center side, and a seat back body between these both side portions. A vehicle seat including a portion,
It consists of an upper convex part formed at the upper end of the one side part, protrudes forward of the vehicle, supports the shoulder belt part in a state where the shoulder belt part of the seat belt is along the front surface of the seat back , and the shoulder belt a first support portion which part is to prevent the movement of sliding towards the seat side,
It comprises a lower convex portion formed at the lower portion of the one side portion , protrudes forward of the vehicle, supports the tongue of the seat belt in a state where the shoulder belt portion is along the front surface of the seat back , and the tongue There a second supporting part to prevent the movement upward,
A vehicle seat characterized by comprising:   2. The vehicle seat according to claim 1, wherein an amount of protrusion of the first support portion from the front surface of the seat back is larger than an amount of protrusion of the second support portion from the front surface of the seat back.   3. The vehicle seat according to claim 1, wherein the first support portion has an inclined surface in contact with the shoulder belt portion, and the second support portion has a lower surface in contact with the tongue.   4. The apparatus according to claim 1, wherein the upper convex portion and the lower convex portion each include a pad member and a cover member that are common to the seat back main body portion. The vehicle seat as described.   The upper convex portion and the lower convex portion are provided with different hardness pad members made of a foamed resin that is harder than the pad member of the seat back main body portion. The vehicle seat according to any one of the above.   2. The vehicle seat according to claim 1, wherein the first support portion and the second support portion are respectively formed at an upper portion and a lower portion of a vertically long protruding portion extending in the up-down direction.   The vehicle seat according to claim 6, wherein the raised portion includes a different hardness pad member made of a resin foam harder than the pad member of the seat back main body portion.

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