JP5594765B2 - Seat belt guidance device - Google Patents

Description

  The present invention relates to a seat belt guiding device that is disposed in the vicinity of an occupant's shoulder at the upper part of a seat back and guides a seat belt led out from the rear of the seat.

  This type of seat belt guiding device is, as disclosed in, for example, Patent Document 1, a vehicle outer side portion in the vehicle width direction of an upper end portion (upper end portion of a portion excluding a headrest) of a seat back, and The base portion of the belt guide constituting the seat belt guiding device protrudes rearward, and is screwed into the bolt hole of the belt guide support portion through the hole of the base portion of the belt guide. It is fixed to the belt guide support portion by two bolts and a washer combined.

JP 2006-298091 A

  However, it is necessary to attach the belt guide to the belt guide support portion with a bolt, and the head of the bolt can be seen and the appearance looks bad, which is undesirable. Moreover, since it is necessary to provide an attachment hole, there also exists a problem that a belt guide support part becomes large.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive seat belt guiding device that has a good appearance and can be easily attached.

For this reason, the present invention is a seat belt guiding device that is disposed in the vicinity of the shoulder portion of the occupant at the top of the seat back and guides the seat belt derived from the rear of the seat.
It is composed of two fixing parts fixed to the seat back frame forming the skeleton of the seat back , two leg parts extending from each fixing part, and a lock part connecting the end parts of the leg parts, A belt guide support portion having a U-shape with the two leg portions and the lock portion ;
A hollow tube portion having a generally rectangular tube shape having a hollow portion opened downward, a guide portion into which the seat belt is inserted, and a flange portion extending in a horizontal direction between the hollow tube portion and the guide portion. And a belt guide that is attached to the belt guide support portion and guides the seat belt,
An inclination that can be swung on a side wall that forms the hollow cylindrical portion with a lower part as a fulcrum and that gradually increases into the hollow so as to gradually enter the hollow when not swung. The belt guide is formed on the belt guide with a locking body formed on the top thereof so that a locking portion having a retaining portion formed on the surface and the upper end protrudes into the hollow portion ,
When attaching the belt guide to the belt guide support portion, the belt guide is lowered so that the lock portion and the both leg portions of the belt guide support portion are inserted into the hollow portion of the hollow tube portion of the belt guide. Then, the lock portion comes into contact with the inclined surface, and the locking body is swung outwardly with the lower portion as a fulcrum to move the locking portion out of the hollow portion, and further the belt guide is lowered. And the locking portion and the inclined surface are released, the locking body swings inward with the lower portion as a fulcrum, and the locking portion enters the hollow portion, whereby the belt guide together with the locking portion located between the retaining portion and the flange portion is locked by the retaining portion so as not to come out in the hollow portion via said adhesive applied to the lower surface of the flange portion The lower surface of the part is characterized in that it is adhered to the skin surface of the seat back.

  According to the present invention, it is possible to provide an inexpensive seat belt guiding device that has a good appearance and can be easily attached.

1 is a perspective view of a rear seat of an automobile and an enlarged view of a circle A portion of the perspective view. It is BB sectional drawing in the enlarged view of the circle A part of FIG. It is a front view of the seatbelt guidance apparatus which shows the state before attaching a belt guide to a belt guide support part.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. First, the rear seat 1 of the automobile includes a seat cushion 2 and a seat back 3. A trim member (not shown) that covers the surface of the vehicle body panel is provided behind the seat back 3, and a seat belt retractor that winds and unwinds the seat belt 5 at a lower portion inside the trim member. Is provided. An opening is provided on the vehicle outer side of the upper end of the trim member, and the seat belt 5 is led out of the trim member through the opening.

  The upper portion of the seat back 3 (the upper end portion of the portion excluding the headrest 3a) is a portion on the vehicle outer side in the vehicle width direction, and is located outside the trim member through the opening at a portion near the shoulder portion of the occupant. A seat belt guide device 6 is provided for guiding the seat belt 5 led out to the passenger seated on the seat cushion 2.

The seat belt guide device 6 is roughly composed of a belt guide support portion 7 and a belt guide 8 attached to the belt guide support portion 7. The belt guide support portion 7 is formed of a metal material (for example, steel) with an appropriate thickness by bending the wire guide support portion 7 so as to have a substantially gate shape, and includes a leg portion 7B, 7B and a horizontal portion 7C, which will be described later. A horizontal fixing portion 7A, 7A that has a shape (see FIG. 3) and is fixed by welding to a hollow seat back frame 10 that is provided inside the seat back 3 and forms a skeleton of the seat back 3, and Two leg portions 7B, 7B obtained by bending the fixing portions 7A, 7A in the vertical direction, respectively , and a horizontal portion 7C, which is a horizontal lock portion that connects the upper ends of the both leg portions 7B, 7B, are formed.

  The belt guide 8 is made of a hard synthetic resin material and is integrally molded. As shown in FIG. 3, the belt guide 8 is embedded in a seat back 3 in a generally hollow rectangular tube-like embedded portion (hollow tube portion) 9, and a seat back. 3, with the embedded portion 9 embedded therein, a saddle portion 13 whose back surface is fixed to the surface of the skin 3 </ b> A of the seat back 3, and a seat belt 5 introduced through the introduction port 14 movably guided. And a guide portion 16 in which a guide port 15 is formed. Therefore, a flange 13 extending in the horizontal direction is formed between the buried portion 9 and the guide portion 16 of the belt guide 8. Reference numeral 3B denotes an interior material of the seat back 3.

  The buried portion 9 is open at the bottom, and the size of the space in the front-rear direction is slightly larger than the thickness of the belt guide support portion 7, so that the leg portions 7B and 7B and the horizontal portion 7C of the belt guide support portion 7 move inside. A possible hollow portion 8A is provided, and openings 8B1 and 8B2 are formed on both sides and above the front wall 8B forming the hollow portion 8A to form a locking body 8D.

  In the state where the embedded portion 9 is embedded in the seat back 3 through the opening 12 opened in the seat back 3, the collar portion 13 has an adhesive on the surface of the skin 3A of the seat back 3. It is bonded and fixed through. In this case, it may be fixed by welding instead of the adhesive.

  In order to introduce the seat belt 5 provided at the upper portion of the flange portion 13, the guide portion 16 is formed with an introduction port 14 extending vertically in the upper portion with a gap slightly larger than the thickness of the seat belt 5. In addition, a guide port 15 having a longitudinal opening dimension slightly longer than the thickness of the seat belt 5 and a lateral opening dimension slightly longer than the width of the seat belt 5 is formed in communication with the introduction port 14.

A locking portion 17 that protrudes into the hollow portion 8A is formed on the upper portion of the locking body 8D of the belt guide 8, and the locking portion 17 extends upward from the thickness of the portion that does not protrude into the hollow portion 8A. An inclined surface 17A inclined so as to protrude gradually with increasing thickness and a retaining portion 17B at the upper end thereof are formed.

  With the configuration as described above, the belt guide support portion 7 is fixed by welding the horizontal fixing portions 7A and 7A to the seat back frame 10 forming the skeleton of the seat back 3, and from the state shown in FIG. Then, the leg portions 7B and 7B and the horizontal portion 7C are inserted into the hollow portion 8A of the belt guide 8 in a state where an adhesive is applied to the lower surface of the flange portion 13, so that the seat back 3 is An operator fits the belt guide 8 and the belt guide support portion 7 through the opened opening 12.

  Due to the lowering operation of the belt guide 8 during the fitting, the horizontal portion 7C of the belt guide support portion 7 rises in the hollow portion 8A of the belt guide 8. The horizontal portion 7C The belt guide 8 moves so that the protruding portion of the locking portion 17 protruding into the hollow portion 8A moves out of the hollow portion 8A because it rises while being in contact with and guided by the inclined surface 17A of the locking portion 17 of the body 8D. The locking body 8D swings forward (outward) with the lower end portion as a fulcrum.

  When the contact between the horizontal portion 7C and the inclined surface 17A is eventually released by the further lowering operation of the belt guide 8, the locking body 8D of the belt guide 8 swings backward with the lower end portion as a fulcrum. The protruding portion of the locking portion 17 moves into the hollow portion 8A, and the horizontal portion 7C comes into contact with the lower surface of the flange portion 13 serving as the upper end of the hollow portion 8A. The belt guide 8 is attached and fixed to the belt guide support portion 7 by the retaining portion 17B.

  That is, when the locking body 8D of the belt guide 8 swings backward, the protruding portion of the locking portion 17 moves inward so as to enter the hollow portion 8A. As shown in FIG. Since the retaining portion 17B is positioned below the horizontal portion 7C of the belt guide support portion 7, the horizontal portion 7C is positioned between the flange portion 13 and the locking portion 17, so that the belt guide support The horizontal portion 7C of the portion 7 is locked by the retaining portion 17B so that the horizontal portion 7C does not come out of the hollow portion 8A of the belt guide 8.

  Further, by attaching the belt guide 8 to the belt guide support portion 7, the lower surface of the collar portion 13 of the belt guide 8 is simultaneously adhered to the surface (surface layer) 3 </ b> A of the seat back 3 via an adhesive.

  Therefore, conventionally, it is necessary to attach the belt guide to the belt guide support portion with bolts, and the head of the bolt can be seen and the appearance looks bad, which is not preferable. However, there is a problem that the belt guide support portion becomes large because it is necessary to provide a mounting hole, but according to the present invention, the appearance is good, the number of work steps is reduced, and the mounting can be easily performed. An inexpensive seat belt guidance device can be provided.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description. It includes modifications or variations.

DESCRIPTION OF SYMBOLS 1 Rear seat 3 Seat back 6 Seat belt guidance | induction apparatus 7 Belt guide support part 7B Leg part 7C Horizontal part 8 Belt guide 8A Hollow part 8B Front wall 8D Locking body 9 Buried part 10 Seat back frame 13 ridge part 17 Locking part 17A Inclined surface 17B Retaining part

Claims (1)

In the seat belt guiding device that is disposed in the vicinity of the shoulder portion of the occupant at the top of the seat back and guides the seat belt derived from the rear of the seat,
It is composed of two fixing parts fixed to the seat back frame forming the skeleton of the seat back , two leg parts extending from each fixing part, and a lock part connecting the end parts of the leg parts, A belt guide support portion having a U-shape with the two leg portions and the lock portion ;
A hollow tube portion having a generally rectangular tube shape having a hollow portion opened downward, a guide portion into which the seat belt is inserted, and a flange portion extending in a horizontal direction between the hollow tube portion and the guide portion. And a belt guide that is attached to the belt guide support portion and guides the seat belt,
An inclination that can be swung on a side wall that forms the hollow cylindrical portion with a lower part as a fulcrum and that gradually increases into the hollow so as to gradually enter the hollow when not swung. The belt guide is formed on the belt guide with a locking body formed on the top thereof so that a locking portion having a retaining portion formed on the surface and the upper end protrudes into the hollow portion ,
When attaching the belt guide to the belt guide support portion, the belt guide is lowered so that the lock portion and the both leg portions of the belt guide support portion are inserted into the hollow portion of the hollow tube portion of the belt guide. Then, the lock portion comes into contact with the inclined surface, and the locking body is swung outwardly with the lower portion as a fulcrum to move the locking portion out of the hollow portion, and further the belt guide is lowered. And the locking portion and the inclined surface are released, the locking body swings inward with the lower portion as a fulcrum, and the locking portion enters the hollow portion, whereby the belt guide with said locking portion located between the retaining portion and the flange portion is locked by the retaining portion so as not to come out in the hollow portion via said adhesive applied to the underside of the flange portion Seat belt guidance system characterized in that the lower surface of the part is adhered to the skin surface of the seat back.

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