JP2006218981A - Seat system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat system equipped with a seat belt guide having a high takeup performance for a seat belt. <P>SOLUTION: The seat system for a vehicle is equipped with a seat back 101, a seat belt supplying part positioned behind the seat back 101 and having a drawout hole 102 for the seat belt, and the seat belt guide 103 arranged in the shoulder part of the seat back 101 and having an opening 103a to admit insertion of the seat belt supplied from the drawout hole 102, wherein the lower edge 103b of the opening 103a has a valley shape, including an outward inclining part 103e in which the external end 103c is positioned on a level with or above the central part 103c. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a seat system that is used in a vehicle and supplies and guides a seat belt.

2. Description of the Related Art Conventionally, a technique for providing a seat belt guide on a seat back and guiding a seat belt supplied from a seat belt pull-out port on the vehicle body side to a position where it can be easily pulled out by an occupant is known (see Patent Document 1).
Japanese Utility Model Publication No. 7-21417

  However, in the conventional seat belt guide, when the occupant swings out of the vehicle when the seat belt is removed, the seat belt is twisted in the opening of the guide, or the end of the seat belt is at the lower end of the opening. In some cases, the seat belt could not be wound well due to strong contact between the portions. However, if the winding force is increased, a strong feeling of pressure is given to the occupant restrained by the seat belt, which is not desirable.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a seat system including a seat belt guide having high seat belt winding performance.

In order to achieve the above object, a vehicle seat system according to the present invention includes:
Seat back,
A seat belt supply section located behind the seat back and having a seat belt outlet;
A seat belt guide disposed on a shoulder portion of the seat back and having an opening for inserting the supplied seat belt;
A vehicle seat system comprising:
The lower edge of the opening has a valley shape, and includes an outer inclined portion whose outer end portion is the same as or higher than the central portion.

  Thus, when the occupant removes the seat belt, if the seat belt is released toward the outside of the vehicle, for example, even if the seat belt is largely released toward the outside of the vehicle rather than the seat belt guide, the seat belt Can be wound smoothly.

  The outward inclined portion can be wound smoothly, particularly when the angle is 0 to 40 degrees with respect to the horizontal direction.

The outlet is
The vehicle width outer edge of the cross section of the seat belt located 5 cm behind the seat belt guide is located above the position lowered by 40 degrees from the horizontal direction and below the vertical upward direction. , Provided. Alternatively, the pull-out port is arranged at a position where the seat belt is pulled out from substantially behind the seat belt guide. According to this, the seat belt pulled out from the outlet is smoothly inserted into the seat belt guide, and the friction between the seat belt and the seat belt guide can be reduced.

  The opening has a space in which a seat belt pulled out from the pull-out port can be inserted without being twisted and bent in a short direction. Thus, when the seat belt is gradually wound around the front surface of the seat back, the friction between the seat belt and the seat guide can be suppressed and the seat belt can be wound smoothly.

  ADVANTAGE OF THE INVENTION According to this invention, the seat system provided with the seatbelt guide with high winding-up performance of a seatbelt can be provided.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the constituent elements described in this embodiment are merely examples, and are not intended to limit the scope of the present invention only to them.

  FIG. 1 is an overall view of a seat system according to an embodiment of the present invention. This figure is a view of the driver's seat and front passenger seat of the open car as viewed obliquely from the front of the vehicle. For convenience of explanation, the front seat side seat is removed.

  The seat system according to the present embodiment is disposed and supplied to a seat back 101, a seat belt supply unit that is located behind the seat back 101 and has a seat belt outlet 102, and a shoulder portion of the seat back 101. And a seat belt guide 103 having an opening for inserting the seat belt.

  In FIG. 1, the seat belt pull-out port 102 is only shown on the passenger seat side, but it is also provided on the driver seat side in the same manner as the passenger seat side, and is disposed almost directly behind the seat belt guide 103. The On the other hand, the seat back 101 and the seat belt guide 103 are provided on the passenger seat side so as to be symmetrical with respect to the center in the vehicle width direction, similarly to the driver seat side. That is, the pull-out port 102 and the seat belt guide 103 are provided on the outer side in the vehicle width direction on both the driver seat side and the passenger seat side. The seat belt supply unit includes a seat belt retractor (105 in FIG. 3) and the like, and the configuration is accommodated in a vehicle trim 104 provided on the back surface of the seat back 101. Further, the seat belt supply unit is not limited to the vehicle trim, and may be disposed on a pillar or a roof. The seat belt guide 103 is attached to the shoulder portion of the seat back 101 facing upward, and does not increase the width of the seat. This is in consideration not to disturb the deployment of the head protection airbag disposed on the seat or the door adjacent to the seat to the side of the seat.

  FIG. 2A is an enlarged view of the seat belt guide 103. FIG. 2A shows a view of the seat belt guide 103 on the driver's seat side as viewed from the front of the vehicle. FIG. 2B is an AA end view of FIG.

  The seat belt guide 103 has an opening 103a for inserting the seat belt. The lower edge 103b of the opening 103a extending substantially in the vehicle width direction has a valley shape when viewed from the front, and the outer end portion 103c is the same as the central portion 103d or is located above the central portion 103d. including. As described above, the outwardly inclined portion 103e is configured in the horizontal direction or on the outer side of the vehicle so that when the occupant removes the seatbelt, the seatbelt is directed outward from the seatbelt guide. Even when it is let go, the seat belt can be wound smoothly. When the angle 103f formed by the outward inclined portion 103e with respect to the horizontal direction is not less than 0 degrees and not more than 40 degrees, particularly, the seat belt can be wound smoothly. The angle 103f is more preferably 10 degrees to 30 degrees. The opening 103a is formed in a slit shape having a gentle curve so that the seat belt moves smoothly in the vehicle width direction or substantially in the vertical direction without bending. For this reason, there is no catch when pulling out the seatbelt, and even after the occupant wears the seatbelt, the seatbelt will shift to the center side and prevent the seatbelt from hanging on the occupant's neck and becoming uncomfortable. Can do.

  When the seat belt is positioned on the vehicle center side of the opening 103a, the seat belt has a substantially straight cross section and is in a state along the substantially vertical direction. Thus, when the occupant pulls out the seat belt, the twisting and friction between the opening 103a and the seat belt can be reduced, and the pull-out performance can be improved.

  The seat belt guide 103 is provided with an insertion port 103h for inserting the seat belt into the opening 103a. The insertion port 103h is a position slightly lower than the vehicle center side end (upper end) of the opening 103a so that the seat belt does not come off from the seat belt guide 103 when the belt is pulled out. It is formed along the vehicle center side at an angle that is significantly different from the extending direction of 103a, that is, the vertical direction.

  FIG. 2C is a diagram showing the arrangement of the outlets 102. FIG. 2A shows a view of the outlet 102 as seen from the front of the vehicle through the seat belt guide 103 on the driver's seat side.

  In FIG. 2C, the outlet 102 is formed in the horizontal direction, but the present invention is not limited to this, and the angle with respect to the horizontal direction may be in the predetermined range 203.

  Specifically, the outlet 102 is above the position 201 where the vehicle width outer end of the cross section of the seat belt located 5 cm behind the seat belt guide 103 is lowered by 40 degrees from the horizontal direction, If provided so as to be positioned below the vertically upward direction 202, the seat belt can be smoothly wound from the seat belt guide 103. More than the position that is 10 degrees lower than the horizontal direction and lower than the position that is 60 degrees higher, and the angle 103f of the outer inclined portion 103e of the seat belt guide 103 is 0 to 30 degrees. preferable.

  Comparing FIG. 2A and FIG. 2C, it can be seen from the positional relationship with the seat back 101 that the outlet 102 is located just behind the opening 103 a of the seat belt guide 103. . In this way, if the pull-out port 102 is arranged at a position where the seat belt is pulled out from substantially behind the seat belt guide 103, the seat belt pulled out from the pull-out port is smoothly inserted into the seat belt guide 103, and the seat belt And the seat belt guide 103 can be reduced in friction.

  The opening 103a has a space 103g into which the seat belt pulled out from the outlet 102 can be inserted without being twisted and bent in the short direction. In other words, if the outlet 102 is provided substantially horizontally in the vehicle width direction, it is desirable that a space 103g in which the seat belt can be disposed horizontally is secured in the opening 103a. In this case, when the seat belt is stored in the outlet 102 so that the tongue 106 of the seat belt is along the front surface of the seat back, the passenger does not largely release the seat belt to the outside of the vehicle. It is possible to suppress the friction between the sheet guide 103 and the sheet guide 103 and smoothly wind the sheet. Further, if the outward inclined portion of the opening is formed at an angle of 10 ° to 40 ° with respect to the horizontal direction in the approximate vehicle width direction, the central portion of the valley of the opening, that is, the vehicle width It is desirable that the seat belt inserted through the direction center portion 103d is formed with the opening portion 103a so as to be substantially horizontal in the lateral direction. As a result, the friction between the seat belt and the seat belt guide 103 is further suppressed, and smooth winding is possible.

  Specifically, the position at which the seat belt is pulled out from almost right behind the seat belt guide 103 is, as shown in FIG. 3, the outlet 102 with the seat belt guide 103 as the center when viewed from the vehicle width direction. However, it is desirable that it is within a predetermined angle 301 (preferably ± 60 degrees) in the vertical direction.

  The position of the outlet 102 is not limited to an open type vehicle, but also applies to a vehicle having a roof supported by a pillar. That is, the present invention can be applied to vehicles other than the open type. At this time, the seat belt pull-out port provided in the pillar or the roof also has a predetermined angle 301 (preferably extending toward the rear centering on the seat belt guide 103). Is preferably within a range of ± 60 degrees.

  On the other hand, the position at which the seat belt is pulled out from almost right behind the seat belt guide 103 means that the position of the outlet 102 is centered on the seat belt guide 103 when viewed from above the vehicle as shown in FIG. From the standpoint of retracting the seat belt and pulling it out, it is preferably within a range of a predetermined angle 401 (preferably ± 30 degrees to the left and right in the figure) in the right rear direction. Further, the predetermined angle 401 is more preferably ± 20 degrees.

  FIG. 5 is a view showing a method of attaching the seat belt guide 103 to the seat back 101. Inside the seat back 101, a frame 501 and a base 502 attached to a shoulder portion of the frame 501 are provided. The seat belt guide 103 is fixed to the base 502. The seat belt guide 103 does not overhang on the side surface of the seat back 101, but is disposed in the space formed by the shoulder portion and the headrest, so even if the airbag expands and jumps out from the side airbag unit 503, The airbag does not interfere with the seat belt guide 103. That is, the ability to protect the head by the airbag is not hindered.

1 is an overall view of a seat system according to an embodiment of the present invention. 1 is a structural diagram of a seat belt guide of a seat system according to an embodiment of the present invention. It is a figure which shows the positional relationship of the seatbelt guide which concerns on embodiment of this invention, and the exit of a seatbelt. It is a figure which shows the positional relationship of the seatbelt guide which concerns on embodiment of this invention, and the exit of a seatbelt. It is a figure which shows the state which attaches the seatbelt guide which concerns on embodiment of this invention to a seat back.

Explanation of symbols

101 Seat back 102 Pull-out port 103 Seat belt guide 104 Trim part

Claims (5)

Seat back,
A seat belt supply section located behind the seat back and having a seat belt outlet;
A seat belt guide disposed on a shoulder portion of the seat back and having an opening for inserting a seat belt supplied from the outlet;
A vehicle seat system comprising:
The lower edge of the opening that extends in the substantially vehicle width direction has a valley shape, and the outer end is located at the same level as or higher than the center of the opening in the approximately vehicle width direction. A vehicle seat system comprising an outwardly inclined portion.   The vehicle seat system according to claim 1, wherein the outward inclined portion forms an angle of 0 to 40 degrees with respect to a horizontal direction in a substantially vehicle width direction. The outlet is
The vehicle width outer edge of the cross section of the seat belt located 5 cm behind the seat belt guide is located above the position lowered by 40 degrees from the horizontal direction and below the vertical upward direction. The vehicle seat system according to claim 1, wherein the vehicle seat system is provided.   The vehicle seat system according to claim 1, wherein the pull-out port is disposed at a position from which the seat belt is pulled out substantially behind the seat belt guide.   2. The vehicle according to claim 1, wherein the opening has a space in which a seat belt pulled out from the pull-out port can be inserted without being twisted and bent in a short direction. Seat system.

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