JP2012086634A - Webbing guide structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily grip webbing and to shorten time until the webbing is mounted.SOLUTION: In a webbing guide structure 10, a projection 20 of a webbing guide 11 is fixed to the upper part of a seat back 34 and projected to the front side of a vehicle with respect to a rear sheet bag 34. A guide surface 21 is provided in the projection 20 and the webbing 24 is abutted on the guide surface 21 to provide a gap between the webbing 24 and the rear seat back 34 below the guide surface 21. As a result, the webbing 24 is easily gripped. Even if the projection 20 is not moved, the gap is provided between the webbing 24 and the rear seat back 34 below the guide surface 21. As a result, the time until the webbing 24 is mounted is shortened.

Description

  The present invention relates to a webbing guide structure for a webbing to be mounted on a vehicle occupant.

  In the auxiliary mechanism of the seat belt device described in Patent Document 1 below, a guide plate is fixed inside the seat back, and an angle is connected to the guide plate so as to be relatively movable. A support member is fixed to the tip of the angle, and webbing is inserted into and supported by the support member.

  The angle is provided with a lever that can be moved integrally. When the lever is slid upward, the angle and the support member are moved upward. When the lever is further slid upward, the angle is moved forward relative to the guide plate, and the support member is moved forward of the seat back. For this reason, the occupant can easily grip the webbing by being pulled out forward of the seat back and being separated from the seat back.

  Here, in the auxiliary mechanism of the seat belt device, the webbing is separated from the seat back by moving the support member as described above. For this reason, it takes time until the webbing is mounted.

JP 2010-149832 A

  In view of the above-described facts, an object of the present invention is to provide a webbing guide structure that can easily grip a webbing and can shorten the time until the webbing is mounted.

  The webbing guide structure according to claim 1 includes a webbing wound around a winding device, and extending from the winding device so as to be attachable to an occupant seated on a vehicle seat, and a seat back of the seat. A guide surface that is fixed to the upper portion and protrudes forward of the seat with respect to the seat back and is inclined in a direction toward the front of the seat as it goes outward in the lateral direction of the seat is provided to guide the webbing to the guide surface. Thus, a protrusion is provided on the lower side of the guide surface so that a gap is provided between the webbing and the seat back.

  The webbing guide structure according to a second aspect is the webbing guide structure according to the first aspect, wherein the webbing guide structure moves from the winding device to the guide surface when the webbing is moved outward in the left-right direction of the guide surface. The webbing length is shortened.

  The webbing guide structure according to a third aspect is the webbing guide structure according to the second aspect, wherein the webbing guide side of the guide surface on the winding device side is moved when the webbing is moved outward in the sheet lateral direction of the guide surface. The longitudinal direction of the webbing approaches a direction perpendicular to the guide surface.

  The webbing guide structure according to a fourth aspect is the webbing guide structure according to the second or third aspect, wherein the webbing guide structure is provided between the protrusion and the winding device, and the webbing is in contact with the webbing guide structure. The webbing includes a contact portion that shortens the webbing path when the webbing is moved outward in the left-right direction of the guide surface.

  In the webbing guide structure according to the first aspect, the webbing is wound around the winding device, and the webbing is extended from the winding device so that it can be attached to an occupant seated on a vehicle seat.

  Here, the protrusion part is being fixed to the upper part of the seat back of a sheet | seat, and the protrusion part protrudes ahead with respect to the seat back. Further, the protrusion is provided with a guide surface, and the webbing is guided to the guide surface, so that a gap is provided between the webbing and the seat back on the lower side of the guide surface.

  For this reason, it is possible to easily grip the webbing.

  In addition, a gap is provided between the webbing and the seat back even if the protrusion is not moved. Thereby, time until webbing is mounted | worn can be shortened.

  Furthermore, the guide surface is inclined in a direction toward the front of the seat as it goes outward in the left-right direction of the seat. For this reason, since the protrusion amount of the protrusion part with respect to a seat back can be decreased in the seat left-right direction inside of a protrusion part, it can suppress that a passenger | crew feels a foreign material feeling.

  In the webbing guide structure according to the second aspect, the length of the webbing from the winding device to the guide surface is shortened when the webbing is moved to the outside in the left-right direction of the guide surface.

  For this reason, when the webbing is taken up by the take-up device, the length of the webbing from the take-up device to the guide surface is shortened by the take-up force of the take-up device. Arranged. Thereby, since webbing is arrange | positioned away from a passenger | crew, webbing can be hold | gripped more easily.

  In the webbing guide structure according to claim 3, when the webbing is moved to the outside of the guide surface in the left-right direction, the longitudinal direction of the webbing on the winding device side of the guide surface approaches the guide surface in the vertical direction. To do.

  For this reason, the length of the webbing from the winding device to the guide surface can be shortened when the webbing is moved to the outer side of the guide surface in the left-right direction.

  In the webbing guide structure according to the fourth aspect, a contact portion is provided between the protruding portion and the winding device, and the webbing is in contact with the contact portion. Further, when the webbing is moved to the outer side in the left-right direction of the guide surface, the contact portion shortens the webbing path.

  For this reason, the length of the webbing from the winding device to the guide surface can be shortened when the webbing is moved to the outer side of the guide surface in the left-right direction.

It is the perspective view seen from the vehicle left front which shows the webbing guide structure concerning a 1st embodiment of the present invention. (A) And (B) is a figure which shows the webbing guide structure which concerns on the 1st Embodiment of this invention, (A) is the top view seen from upper direction, (B) is vehicle front It is the front view seen from. It is the side view seen from the vehicle left side which shows the webbing guide structure concerning a 1st embodiment of the present invention. It is the perspective view seen from the vehicle left front which shows the webbing guide structure concerning the 2nd Embodiment of this invention. (A) And (B) is a figure which shows the webbing guide structure which concerns on the 2nd Embodiment of this invention, (A) is the top view seen from upper direction, (B) is vehicle front It is the front view seen from. It is the side view seen from the vehicle left side which shows the webbing guide structure concerning the 2nd Embodiment of this invention. It is the perspective view seen from the vehicle left front which shows the webbing guide structure concerning the 3rd Embodiment of this invention. It is the perspective view seen from the vehicle left front which shows the webbing guide structure concerning the 4th Embodiment of this invention.

  [First Embodiment]

  FIG. 1 shows a webbing guide structure 10 according to a first embodiment of the present invention in a perspective view as seen from the left front side of a vehicle. 2A is a plan view of the webbing guide structure 10 viewed from above, and FIG. 2B is a front view of the webbing guide structure 10 viewed from the front of the vehicle. Is shown. Further, FIG. 3 shows the webbing guide structure 10 in a side view as viewed from the left side of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, the right side of the vehicle is indicated by an arrow RH, and the upper side is indicated by an arrow UP.

  As shown in FIG. 3, a rear seat 30 as a seat on which an occupant is seated is provided in the vehicle rear portion of the vehicle compartment. The front of the rear seat 30 is aligned with the front of the vehicle, and the left-right direction of the rear seat 30 is It is matched with the vehicle width direction. The occupant is seated in the seating area 30 </ b> A of the rear seat 30.

  The rear seat 30 includes a rear seat cushion 32 as a seat cushion, and the rear seat cushion 32 is fixed in a state of being disposed substantially horizontally on the floor of the vehicle. The rear seat 30 includes a rear seat back 34 as a seat back, and the rear seat back 34 is disposed in a standing state at a vehicle rear side end portion of the rear seat cushion 32. An anchor 36 is provided behind the rear seat cushion 32 in the vehicle, and the anchor 36 is fixed to the floor of the vehicle. On the rear seat cushion 32, a buckle device (not shown) is disposed on the inner side in the vehicle width direction of the seating region 30A, and the buckle device is connected to the floor of the vehicle. The buckle device can hold a tongue plate, which will be described later.

  As shown in FIGS. 1 to 3, a webbing guide 11 made of resin is fixed to the upper portion of the rear seat back 34 on the outer side in the vehicle width direction of the seating region 30 </ b> A of the rear seat 30. The webbing guide 11 includes a plate-like base 12 as a main body, and a guide portion 14 having a U-shaped cross section is integrally provided on the upper portion of the base 12. A guide hole 16 having a substantially rectangular cross section as an insertion portion is formed in the guide portion 14, and the guide hole 16 is inclined inward in the vehicle width direction toward the front of the vehicle and passes through the guide portion 14. It is penetrated. The width dimension of the guide hole 16 in the vehicle width direction is larger than the width dimension of a webbing 24 described later, and the lower surface of the guide hole 16 is a contact surface 18 as a contact portion.

  A protrusion 20 having a substantially semicircular cross section as a protruding portion is integrally provided on the vehicle front side portion of the base 12, and the protrusion 20 protrudes forward from the base 12 to the front of the rear seat back 34. It is protruded to. The leading end of the protrusion 20 is a guide surface 21, and the guide surface 21 is inclined in a direction toward the front of the vehicle as it goes outward in the vehicle width direction. The inner side in the vehicle width direction of the protrusion 20 (guide surface 21) slightly protrudes forward of the vehicle with respect to the rear seat back 34, and the protrusion amount of the protrusion 20 (guide surface 21) with respect to the rear seat back 34 is the vehicle width. It is gradually increased toward the outside in the direction.

  A webbing take-up device 22 as a take-up device is provided on the rear side of the vehicle above the rear seat back 34 and outside the seating area 30A of the rear seat 30 in the vehicle width direction. (Not shown). The webbing take-up device 22 includes a drum-shaped spool 26 as a take-up shaft, and both ends of the spool 26 are rotatably supported on the side wall of the webbing take-up device 22. The webbing take-up device 22 is disposed in a state in which the axis of the spool 26 is inclined in the direction toward the front of the vehicle as it goes outward in the vehicle width direction, and when viewed from above, the axis of the spool 26 is in the vehicle width direction. It is inclined in a direction approaching the guide surface 21 as it goes outward.

  A base end portion of a webbing 24 formed in a long band shape is connected and fixed to the spool 26. A tongue plate (not shown) is movably provided at a longitudinally intermediate portion of the webbing 24 at a vehicle front side position of the rear seat back 34, and the tongue plate can be held by the buckle device. When the spool 26 is rotated to one side around the axis (hereinafter, this direction is referred to as “winding direction”), the webbing 24 is wound on the spool 26 from the base end side, and the webbing 24 is wound on the webbing winding device 22. Stored in On the other hand, when the webbing 24 is pulled from the tip end side, the webbing 24 is pulled out while the spool 26 rotates around the axis (hereinafter, this direction is referred to as “drawing direction”).

  Moreover, the webbing take-up device 22 includes a mainspring spring (not shown) as an urging means, and the mainspring spring urges the spool 26 in the take-up direction. For this reason, the webbing 24 is wound around the spool 26 by the urging force of the mainspring spring and can be stored in the webbing retractor 22.

  The webbing 24 extends straight from the webbing take-up device 22 and is inserted into the guide hole 16 of the webbing guide 11. The webbing 24 inserted through the guide hole 16 is bent by the guide surface 21 and extends downward by contacting the guide surface 21 of the protrusion 20 of the webbing guide 11.

  Further, the webbing 24 is inserted between the vehicle rear side end of the rear seat cushion 32 and the lower side end of the rear seat back 34, and the front end portion is fixed to the anchor 36. At this time, a gap is provided between the webbing 24 and the rear seat back 34 below the guide surface 21.

  Further, as described above, since the width dimension of the guide hole 16 in the vehicle width direction is larger than the width dimension of the webbing 24, the webbing 24 can be moved in the guide hole 16 in the vehicle width direction. For this reason, the webbing 24 is movable in the vehicle width direction on the guide surface 21 of the protrusion 20.

  Here, the length of the webbing 24 from the webbing take-up device 22 (axial center of the spool 26) to the guide surface 21 of the protrusion 20 through the guide hole 16 is defined as a webbing reach length 24A.

  As described above, the webbing take-up device 22 is arranged in a state in which the axis of the spool 26 is inclined in the direction toward the front of the vehicle as it goes outward in the vehicle width direction. It is inclined in a direction approaching the guide surface 21 as it goes outward in the vehicle width direction. When the webbing 24 is moved outward in the vehicle width direction of the guide surface 21, the longitudinal direction of the webbing 24 on the webbing take-up device 22 side of the guide surface 21 approaches the guide surface 21 in a direction perpendicular to the webbing 24. The reach length 24A is shortened (see FIG. 2A).

  Next, the operation of the first embodiment will be described.

  The webbing 24 extended from the webbing take-up device 22 is inserted into the guide hole 16 of the webbing guide 11, abuts on the guide surface 21 of the protrusion 20 of the webbing guide 11, and extends downward. .

  When the occupant grips the webbing 24 and pulls the webbing 24 against the urging force of the mainspring spring of the webbing take-up device 22, the spool 26 of the webbing take-up device 22 is rotated in the pull-out direction, so that the webbing 24 is It is pulled out from the webbing take-up device 22.

  The pulled-out webbing 24 is wound around the occupant's body, and a tongue plate provided at the intermediate portion in the longitudinal direction of the webbing 24 is held by the buckle device, so that the webbing 24 is attached to the occupant's body.

  At this time, the tongue plate is held on the inner side in the vehicle width direction from the seating area 30 </ b> A of the rear seat 30, so that the webbing 24 inserted through the guide hole 16 of the webbing guide 11 is guided by the projection 20 of the webbing guide 11. 21 (in the position indicated by a two-dot chain line in FIGS. 1 and 2 (A) and (B)).

  On the other hand, when the holding of the tongue plate on the buckle device is released, the spool 26 is rotated in the winding direction by the urging force of the mainspring spring of the webbing winding device 22, so that the webbing 24 is wound on the spool 26. And stored in the webbing take-up device 22.

  At this time, the webbing 24 is stored in the webbing take-up device 22 while sliding on the contact surface 18 of the webbing guide 11 while contacting the guide surface 21 of the protrusion 20 of the webbing guide 11.

  Here, the protrusion 20 of the webbing guide 11 protrudes forward of the vehicle with respect to the rear seat back 34. Further, the projection 20 is provided with a guide surface 21, and the webbing 24 abuts (guides) the guide surface 21, so that a gap is provided between the webbing 24 and the rear seat back 34 below the guide surface 21. Is provided.

  Therefore, when the occupant wears the webbing 24, the occupant can easily grasp the webbing 24 by inserting a finger into the gap between the webbing 24 and the rear seat back 34.

  Moreover, a gap is provided between the webbing 24 and the rear seat back 34 on the lower side of the guide surface 21 even if the protrusion 20 (guide surface 21) is not moved. Thereby, time until mounting | wearing with webbing 24 can be shortened.

  Furthermore, the guide surface 21 is inclined in a direction toward the front of the vehicle as it goes outward in the vehicle width direction. For this reason, since the protrusion amount of the guide surface 21 (projection 20) with respect to the rear seat back 34 can be reduced on the inner side in the vehicle width direction of the guide surface 21, it is possible to suppress the occupant from feeling a foreign object on the shoulder.

  Further, the webbing take-up device 22 is arranged in a state where the axis of the spool 26 is inclined in the direction toward the front of the vehicle as it goes outward in the vehicle width direction. It is inclined in a direction approaching the guide surface 21 as it goes outward in the width direction. When the webbing 24 is moved outward in the vehicle width direction of the guide surface 21, the longitudinal direction of the webbing 24 on the webbing take-up device 22 side of the guide surface 21 approaches the guide surface 21 in the vertical direction. For this reason, when the webbing 24 is moved outward in the vehicle width direction of the guide surface 21, the webbing reach length 24A is shortened.

  Thereby, when the webbing 24 is stored in the webbing take-up device 22, the webbing reach length 24 </ b> A is shortened by the urging force of the mainspring spring of the webbing take-up device 22, so Moved outward in the direction. Therefore, since the webbing 24 is disposed away from the occupant, the webbing 24 can be gripped more easily.

  Further, the webbing guide 11 is made of resin, and the protrusion 20 (guide surface 21) is provided integrally with the base 12. Thereby, since the webbing guide 11 can be manufactured at low cost, the cost increase of the webbing guide 11 can be suppressed.

  [Second Embodiment]

  FIG. 4 shows a perspective view of a webbing guide structure 50 according to the second embodiment of the present invention as seen from the left front side of the vehicle. 5A is a plan view of the webbing guide structure 50 viewed from above, and FIG. 5B is a front view of the webbing guide structure 50 viewed from the front of the vehicle. Is shown. Further, FIG. 6 shows a side view of the webbing guide structure 50 viewed from the left side of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, the right side of the vehicle is indicated by an arrow RH, and the upper side is indicated by an arrow UP.

  The present embodiment has substantially the same configuration as the first embodiment, but differs in the following points.

  As shown in FIG. 5A, the webbing take-up device 22 is arranged in a state where the axis of the spool 26 is perpendicular to the vehicle front-rear direction (the webbing 24 extends from the webbing take-up device 22 to the front of the vehicle). Is extended to).

  As shown in FIGS. 4 to 6, a substantially triangular cylindrical guide portion 14 is integrally provided on the upper portion of the base 12 of the webbing guide 50, and a long guide hole 16 is provided in the guide portion 14. Is formed penetrating along the vehicle longitudinal direction. The guide hole 16 is disposed so as to be inclined downward in the vehicle width direction. For this reason, the contact surface 18 which is the lower surface of the guide hole 16 is inclined in a downward direction as it goes outward in the vehicle width direction.

  The webbing 24 is in contact with the contact surface 18, and when the webbing 24 is moved outward in the vehicle width direction of the guide surface 21, the path of the webbing 24 is shortened and the webbing reach length 24 </ b> A is shortened. Become.

  Therefore, also in this embodiment, the same operation and effect as the first embodiment can be obtained.

  In the second embodiment, the webbing take-up device 22 is arranged in a state where the axis of the spool 26 is perpendicular to the vehicle longitudinal direction. Instead, as in the first embodiment, the webbing take-up device 22 may be arranged in a state of being inclined in a direction toward the front of the vehicle as the axis of the spool 26 goes outward in the vehicle width direction.

  [Third Embodiment]

  FIG. 7 shows a perspective view of a webbing guide structure 60 according to the third embodiment of the present invention as seen from the left front side of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, the right side of the vehicle is indicated by an arrow RH, and the upper side is indicated by an arrow UP.

  The present embodiment has substantially the same configuration as that of the second embodiment, but differs in the following points.

  A plate-like guide portion 14 is integrally provided on the upper surface of the base 12 of the webbing guide 11, and the guide portion 14 protrudes upward with respect to the base 12. A long guide hole 16 is formed through the guide portion 14 along the vehicle front-rear direction.

  The base 12 is integrally provided with a plate-like sliding wall 62 between the guide portion 14 and the protrusion 20, and the sliding wall 62 protrudes upward with respect to the base 12. The upper portion of the sliding wall 62 is inclined downward as it goes outward in the vehicle width direction, and the upper surface of the sliding wall 62 is a contact surface 18 as a contact portion. The webbing 24 is in contact with the contact surface 18, and when the webbing 24 is moved outward in the vehicle width direction of the guide surface 21, the path of the webbing 24 is shortened and the webbing reach length 24 </ b> A is shortened. Become.

  Therefore, also in the present embodiment, the same operations and effects as the first embodiment and the second embodiment are exhibited.

  [Fourth Embodiment]

  FIG. 8 shows a webbing guide structure 70 according to a fourth embodiment of the present invention in a perspective view seen from the left front side of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, the right side of the vehicle is indicated by an arrow RH, and the upper side is indicated by an arrow UP.

  This embodiment is substantially the same as the third embodiment, but differs in the following points.

  The base 12 of the webbing guide 11 is divided between the guide portion 14 and the sliding wall 62, and includes a main base 72 and a sub base 74. The main base 72 is provided with the protrusion 20 and the sliding wall 62, and the sub base 74 is provided with the guide portion 14 and the guide hole 16. The webbing 24 is in contact with the contact surface 18, and when the webbing 24 is moved outward in the vehicle width direction of the guide surface 21, the path of the webbing 24 is shortened and the webbing reach length 24 </ b> A is shortened. Become.

  Therefore, also in this embodiment, the same operations and effects as the first to third embodiments are exhibited.

  The base 12 is divided between the guide portion 14 and the sliding wall 62, and is constituted by a main base 72 and a sub base 74. Therefore, the main base 72 and the sub base 74 can be fixed to the rear seat back 34 in accordance with the width of the rear seat back 34 in the vehicle longitudinal direction.

  In the first to fourth embodiments, the webbing guide 11 is made of resin. Instead of this, for example, the inner side in the vehicle width direction of the protrusion 20 may be formed of an elastic body such as an elastomer. As a result, if the occupant hits the protrusion 20, the cushioning property between the occupant and the protrusion 20 can be improved.

  In the first to fourth embodiments, the guide hole 16 is formed through the guide portion 14. Instead, a slit communicating with the guide hole 16 may be provided in the upper portion of the guide portion 14. Thereby, the webbing 24 can be attached to and detached from the guide hole 16.

10 Webbing guide structure 18 Sliding surface (contact part)
20 Protrusion (protrusion)
21 Guide surface 22 Webbing take-up device (winding device)
24 Webbing 30 Rear seat (seat)
34 Rear seat back (seat back)
50 Webbing guide structure 60 Webbing guide structure 70 Webbing guide structure

Claims (4)

A webbing wound on a winding device and extending from the winding device to be attachable to an occupant seated on a vehicle seat;
The webbing is fixed to an upper portion of the seat back of the seat, protrudes forward of the seat with respect to the seat back, and is provided with a guide surface that inclines toward the front of the seat as it goes outward in the lateral direction of the seat. A protrusion provided with a gap between the webbing and the seat back on the lower side of the guide surface by being guided by the guide surface;
Webbing guide structure with.   2. The webbing guide structure according to claim 1, wherein a length of the webbing from the winding device to the guide surface is shortened when the webbing is moved outward in the left-right direction of the guide surface.   The longitudinal direction of the said webbing in the said winding device side of the said guide surface approaches the perpendicular | vertical direction with respect to the said guide surface when the said webbing is moved to the sheet | seat left-right direction outer side of the said guide surface. Webbing guide structure.   An abutting portion that is provided between the protruding portion and the winding device and shortens the path of the webbing when the webbing is abutted and the webbing is moved outward in the left-right direction of the guide surface. The webbing guide structure of Claim 2 or Claim 3 provided with these.

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