JP2006142883A - Webbing passing member and seat belt apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a webbing passing member enabling a wide part to be narrowed while holding strength near an passing port for webbing passing and enabling smooth webbing winding operation. <P>SOLUTION: The seat belt apparatus has webbing for restraining a rider, a winding device for winding the webbing, a buckle, and a tongue 5 fitted to the buckle. The tongue 5 is formed of an almost T shaped metal plate as seen in a plan view, and the wide part 5b forming the passing port 5d for passing the webbing has folding parts 5e at both edge parts. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a webbing insertion member such as a seat belt tongue or a shoulder anchor through which a webbing of a seat belt device is inserted.

  Conventionally, a seat belt device provided with a webbing for protecting an occupant on a seat is known (see, for example, Patent Document 1).

  FIG. 5 is a front view of a retracted state of a seat belt device for a vehicle driver's seat showing an example of the conventional seat belt device, and FIG. 6 is a use state of the seat belt device for a vehicle driver's seat showing an example of the seat belt device. It is a perspective view.

  5 and 6, 1 is supported by an anchor 2 fixed at one end near the vehicle floor, and supported at the other end by a winding device 3 fixed at the vehicle floor so as to restrain the passenger. The webbing 4 to be held is rotatably held above the vehicle body center pillar P, and a shoulder anchor 5 is inserted between the middle part of the webbing 1, and 5 is provided between the anchor 2 and the shoulder anchor 4. Is a tongue (webbing insertion member) which is located on the opposite side of the seat 6 and can be engaged with a buckle 7 connected to a predetermined fixed side (vehicle body side) member.

  The shoulder anchor 4 and the tongue 5 are made of a substantially T-shaped metal plate in plan view, and a latch hole (in the case of the tongue 5) that engages with the buckle 7 is formed in the narrow portion. The shoulder anchor 4 is similarly formed with a body fixing hole. In addition, an insertion port having a width equal to or greater than that of the webbing 1 is formed in the wide portion of the tongue 5 and the shoulder anchor 4 so that the webbing 1 can be inserted. Furthermore, the general tongue 5 and the shoulder anchor 4 are made of a synthetic resin with a wide portion within a range in which the insertion state of the webbing 1 through the insertion port is maintained for the purpose of reducing the frictional resistance with respect to the webbing 1 inserted through the insertion port. Covered with mold.

JP 2002-96712 A

  By the way, in the webbing insertion member such as the tongue 5, the width of the insertion port must be substantially the same, considering that the width of the webbing 1 is constant regardless of the vehicle type. On the other hand, since the tongue 5 supports the load from the occupant, it is necessary to secure a certain cross-sectional area near the insertion opening.

  However, if such a cross-sectional area is secured above a certain level, the width of the wide portion becomes much wider than the width of the webbing 1, and for example, the engagement with the buckle 7 is released and the pulling force of the winding device 3 is released. Therefore, the tongue 5 may be caught in the gap between the center pillar P and the seat 6 in the process of winding the webbing 1. If the tongue 5 is sandwiched between the center pillar P and the seat 6 in this way, a part of the webbing 1 remains loose, and the loose webbing 1 is sandwiched between the doors, and a smooth webbing take-up operation is difficult. It becomes.

  An object of this invention is to provide the webbing insertion member which can aim at smoothing of webbing winding-up operation, and a seatbelt apparatus provided with this webbing insertion member.

  In order to achieve the above object, the webbing insertion member according to claim 1 is a webbing insertion member formed of a substantially T-shaped metal plate in plan view and having an insertion port through which the webbing is inserted in the wide portion. The wide portion includes a bent portion formed by bending at a predetermined angle at both edges thereof, and is integrally molded so as to be covered with a synthetic resin while maintaining insertion of the webbing into the insertion port. It is characterized by having bent portions formed by bending at both edges.

  The webbing insertion member according to claim 2 is characterized in that the wide portions are configured such that both side portions in the width direction each having a substantially L-shaped end surface face each other.

  The webbing insertion member according to a third aspect is characterized in that the wide portions are configured such that both side portions in the width direction each having a substantially U-shaped end surface face each other.

  The webbing insertion member according to claim 4 is characterized in that, in the wide portion, the facing width between the both sides in the width direction after bending is wider than the maximum opening width of the insertion port.

  The webbing insertion member according to claim 5, wherein the wide portion is set so that an outer surface width thereof is 0.6 ≦ W = webbing width / outermost surface width after molding <1. Features.

  The webbing insertion member according to claim 6 is characterized in that the wide portion has an outer surface width of 61 to 67 mm.

  The webbing insertion member according to claim 7 is characterized in that the wide part has an outermost surface width after molding of 65 to 70 mm.

  The seatbelt device according to claim 8, wherein a webbing that restrains a passenger, a winding device capable of winding the webbing, a buckle connected to a stationary member, and an insertion port through which the webbing is inserted. A wide portion integrally molded so as to be covered with a synthetic resin while maintaining insertion of the webbing into the insertion opening, with bent portions formed by bending at a predetermined angle at both edges A narrow portion having a latch hole engaged with the buckle, and a webbing insertion member made of a metal plate having a substantially T-shape in plan view.

  The seatbelt device according to claim 9, wherein the wide portion of the webbing insertion member is configured such that both sides in the width direction each having a substantially L-shaped end face shape face each other. To do.

  The seat belt device according to claim 10, wherein the wide portion of the webbing insertion member is configured such that both side portions in the width direction each having a substantially U-shaped end face shape face each other. To do.

  According to the present invention, by providing bent portions at both edges of the wide portion, the cross-sectional area near the insertion opening for webbing insertion is equivalent to that without the thick portion, and the width of the wide portion is maintained while maintaining strength. Since it can be narrowed, smoothing of the webbing take-up operation can be realized. At this time, the sliding resistance between the webbing and the insertion port can be lowered by integrally molding the webbing into the insertion port so as to be covered with the synthetic resin while maintaining the insertion.

  Further, by configuring the wide portion so that both side portions in the width direction each having a substantially L-shaped end face shape face each other, the ease of molding and the stabilization of the product can be ensured.

  Furthermore, the wide portion is configured so that both side portions in the width direction each having a substantially U-shaped end face shape face each other, thereby improving the strength while ensuring ease of molding and further increasing the width of the wide portion. Narrowing can be realized.

  Moreover, the wide part can ensure the insertion state of the webbing in an insertion port by making the opposing width | variety of the width direction both sides after bending wider than the maximum opening width of an insertion port. At this time, when performing the above-described molding, it is a matter of course that the opposing width and the maximum opening width between the two edges after molding are targeted.

  Further, the outer surface width of the wide portion is set to satisfy 0.6 ≦ W = webbing width / outermost surface width after molding <1, specifically, the outer surface width before molding is 61 to 61. More specifically, the width can be reduced by 67 mm and the outermost surface width after molding of 65 to 70 mm.

  Next, the webbing insertion member of this invention is demonstrated based on drawing. The apparent configuration of the seat belt apparatus is substantially the same as that shown in FIGS. 5 and 6, and therefore the entire configuration of the seat belt apparatus will be omitted. In the present embodiment, the webbing insertion member is applied to the tongue 5 shown in FIGS. 5 and 6, but the configuration of the main part can also be applied to the shoulder anchor 4.

  1 and 2, a tongue 5 as a webbing insertion member is formed of a metal plate that has a substantially T-shape in plan view with a narrow portion 5a and a wide portion 5b.

  A latch hole 5c for engaging with the buckle 7 shown in FIGS. 5 and 6 is formed in the narrow portion 5a.

  The wide portion 5b is formed with an insertion port 5d through which the webbing 1 shown in FIGS. 5 and 6 is inserted in the width direction. In addition, a bent portion 5e that is bent on one side is formed on both width edges of the wide portion 5b. As a result, as shown in FIG. 1A, the wide portion 5b has a substantially U-shaped end surface shape that opens to one surface side. At this time, the bent portion 5e is formed by bending a flat plate-like wide portion having a thickness equivalent to that of the narrow portion 5a, for example, so as to strike from both sides in the width direction (= both edges). It has been done. Thereby, the outer side surface width W of the wide part 5b can be 61-67 mm narrower than the wide part of the existing tongue (for example, 65 mm, including errors due to the occurrence of springback, etc.). Even when a springback occurs due to the bending process, the uniformity of the product on the appearance is maintained by applying the mold 8 described later.

  Specifically, the maximum opening width W2 of the insertion port 5d is set to 53.2 mm (slightly wider than the legal width of 46 mm to 50 mm of the webbing 1), which is substantially the same as that of the existing flat plate shape. The maximum outer surface width in a state in which the wide portion 5b including the opening edge portion of the insertion port 5d is integrally molded with the synthetic resin mold 8 and covered with the state secured (the thickness of the mold 8 is the thickness of the existing flat plate) W3 is 65 to 70 mm (for example, 70 mm) narrower than the existing flat plate of 74.5 mm. Thereby, it is possible to prevent the tongue 5 from being caught in the gap between the center pillar P and the seat 6 as described above while maintaining the strength, and to ensure a smooth webbing take-up operation.

  By the way, as shown in FIG. 3 and FIG. 4, for example, the bent portion 5e is a bent portion 5f that is bent inward in two stages, and is substantially U-shaped with each side facing each other. By adopting an end face (cross-sectional) shape, it is possible to improve the strength and further reduce the width.

  At this time, the facing width between the two edge portions after bending, whose edges are opposed to each other, is wider (including substantially the same width) as the maximum opening width W2 of the insertion port 5d, thereby maintaining the inserted state of the webbing 1. be able to. 3 and 4, the same reference numerals are given to the same components as those in the above embodiment, and the description thereof is omitted.

The webbing penetration member of this invention is shown, (A) is a perspective view of the tongue as a webbing penetration member, (B) is sectional drawing of the principal part after a mold. The webbing penetration member of this invention is shown, (A) is a top view of the tongue as a webbing penetration member, (B) is a side view of the tongue as a webbing penetration member. The modification of the webbing penetration member of this invention is shown, (A) is a perspective view of the tongue as a webbing penetration member, (B) is sectional drawing of the principal part after a mold. The modification of the webbing insertion member of this invention is shown, (A) is a top view of the tongue as a webbing insertion member, (B) is a side view of the tongue as a webbing insertion member. It is a front view of the storage state of the seatbelt apparatus for vehicle driver's seats which shows an example of a seatbelt apparatus. It is a perspective view of the use condition of the seatbelt apparatus for vehicle driver's seats which shows an example of a seatbelt apparatus.

Explanation of symbols

5 tongue (webbing insertion member)
5a Narrow part 5b Wide part 5c Latch hole 5d Insertion port 5e Bending part 5f Bending part 8 Resin mold

Claims (10)

In the webbing insertion member formed of a substantially T-shaped metal plate in plan view and having an insertion port through which the webbing is inserted in the wide part,
The wide portion includes a bent portion formed by bending at a predetermined angle at both edges thereof, and is integrally molded so as to be covered with a synthetic resin while maintaining insertion of the webbing into the insertion port. A webbing insertion member characterized by comprising:   2. The webbing insertion member according to claim 1, wherein each of the wide portions is configured such that both side portions in the width direction each having a substantially L-shaped end surface face each other.   The webbing insertion member according to claim 1, wherein each of the wide portions is configured such that both side portions in the width direction each having a substantially U-shaped end surface shape face each other.   4. The webbing insertion member according to claim 3, wherein the wide part has a width of opposing sides of the both sides in the width direction after being bent larger than a maximum opening width of the insertion port. The wide portion has an outer surface width,
0.6 ≦ W = webbing width / outermost surface width after molding <1
The webbing insertion member according to claim 1, wherein the webbing insertion member is set to be   The webbing insertion member according to claim 5, wherein the wide portion has an outer surface width of 61 to 67 mm.   The webbing insertion member according to claim 5 or 6, wherein the wide part has an outermost surface width after molding of 65 to 70 mm. Webbing to restrain the passenger,
A winding device capable of winding the webbing;
A buckle connected to the stationary member;
It is provided with a bent portion formed by bending at a predetermined angle at both edges of the insertion port through which the webbing is inserted, and is integrated so as to be covered with a synthetic resin while maintaining the insertion of the webbing into the insertion port. A webbing insertion member having a wide portion formed by molding; a narrow portion having a latch hole that engages with the buckle; and a webbing insertion member made of a substantially T-shaped metal plate in plan view Belt device.   9. The seat belt device according to claim 8, wherein the wide portion of the webbing insertion member is configured such that both side portions in the width direction each having a substantially L-shaped end face shape face each other.   The seat belt device according to claim 8, wherein the wide portion of the webbing insertion member is configured such that both side portions in the width direction each having a substantially U-shaped end face shape face each other.

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