JP2007062736A - Seat belt device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat belt device for vehicle capable of easily performing the tongue accommodation operation while ensuring the appearance by realizing a wide opening part of a tongue holding part on the distal side hardly to be seen from a cabin side, and a narrow opening part of the tongue holding part on the proximal side, and consistently holding each tongue by providing the tongue holding part corresponding to each tongue. <P>SOLUTION: A longitudinal wall 26c extending in the outside-to-inside direction of a cabin is formed in a tongue holder 26. The longitudinal wall 26c has a first tongue holding part 28 for inserting and holding one tongue 13 and a second tongue holding part 29 for inserting and holding one tongue 15 parallel to the first tongue holding part 28 on the inner side of the outside-to-inside direction of the cabin. An opening part of the first tongue holding part 28 is formed wider than an opening part of the second tongue holding part 29 in the outside-to-inside direction of the cabin. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat belt apparatus including a seat belt retractor, a three-point seat belt having a front end tongue and an intermediate tongue, and a tongue holder for holding both tongues when not in use.

  Conventionally, as the vehicle seat belt device of the above example, there are those disclosed in Patent Document 1 and Patent Document 2.

  In the structure disclosed in Patent Document 1, a retractor is provided so as to be housed in a cross member provided between a roof panel and a roof trim, and a front tongue and an intermediate tongue of a three-point seat belt are overlapped. It is arranged on a lid part formed integrally with the roof trim, and each tongue is attracted and held by a magnet when the lid part is closed.

  According to this conventional structure, when the lid is closed, the tongues and seat belts are not visible from the passenger compartment, so that the appearance is good, but it is necessary to open and close the lid every time the tongue is stored. There was a problem that storage operativity was inferior.

  In addition, the structure disclosed in Patent Document 2 is provided with a cover-shaped tongue holder on the vehicle compartment side of the roof panel, and a retractor is disposed on the roof side of the tongue holder. The front end tongue is inserted into and held in the insertion port, while the intermediate tongue is hung in a suspended state and exposed.

According to this conventional structure, the front end tongue is folded and held upward in the direction of the belt pull-out hole, so it is necessary to operate the front end tongue against the retracting force of the seat belt. In addition, since the intermediate tongue is suspended in the air and exposed to the passenger compartment side, there is a problem that the intermediate tongue cannot be stably held as well as the appearance.
Japanese Patent Laid-Open No. 2001-239921 JP 2002-362310 A

  Accordingly, in the present invention, a vertical wall extending outwardly from the vehicle interior is formed in the tongue holder, and a first tongue holding portion for inserting and holding one tongue on the vertical wall, and a vehicle interior of the first tongue holding portion. A second tongue holding portion for inserting and holding another one tongue side by side on the inner side in the outer direction, and the opening portion of the first tongue holding portion is more outward in the vehicle interior than the opening portion of the second tongue holding portion By forming it wide, the opening of the tongue holding part on the back side that is difficult to see from the passenger compartment is widened, and the opening of the tongue holding part on the near side is narrowed to ensure the appearance and easy tongue storage operation It is an object of the present invention to provide a vehicle seat belt device that can perform each of the tongues stably by providing a tongue holding portion corresponding to each tongue.

A vehicle seat belt apparatus according to the present invention is a vehicle seat belt apparatus including a seat belt retractor, a three-point seat belt having a front end tongue and an intermediate tongue, and a tongue holder for holding both tongues when not in use. The tongue holder is formed with a vertical wall extending in the vehicle interior / external direction, and the vertical wall has a first tongue holding portion for inserting and holding one tongue, and the vehicle interior / exterior direction of the first tongue holding portion. A second tongue holding portion for inserting and holding one tongue side by side, and the opening of the first tongue holding portion is wider in the vehicle interior and exterior direction than the opening of the second tongue holding portion. It is formed.
According to the above configuration, the opening of the first tongue holding part on the back side, which is difficult to see from the passenger compartment, is widened, and the opening of the second tongue holding part on the near side is narrowed, and the tongue is stored while ensuring the appearance. Operation can be performed easily.
In addition, since the tongue holding portions are provided corresponding to the respective tongues, the front end tongue and the intermediate tongue can be stably held.

In one embodiment of the present invention, the retractor and the tongue holder are provided on the roof portion, and the both tongue holding portions are provided side by side.
According to the said structure, in a tongue holder provided in the roof part, a front-end | tip tongue and an intermediate | middle tongue can be stably hold | maintained to the both tongue holding parts arranged up and down.

In one embodiment of the present invention, the tongue includes a gripping portion, and the opening of the first tongue holding portion is formed wider than the thickness of the tongue gripping portion.
According to the above configuration, the tongue storage operability with respect to the first tongue holding portion can be improved.

In one embodiment of the present invention, the first tongue holding portion is gradually formed wider from the tongue locking bracket holding portion to the opening side.
According to the said structure, the tongue storage with respect to a 1st tongue holding | maintenance part can be comprised still more smoothly.

In an embodiment of the present invention, the opening of the second tongue holding portion is formed to have a width that allows only the tongue tip portion to be inserted.
According to the above configuration, it is possible to reduce the size of the opening of the second tongue holding portion to the minimum necessary and to ensure compactness.

In an embodiment of the present invention, the tongue locking means is provided only in the second tongue holding portion.
According to the said structure, the operativity improvement of a tongue accommodation can be aimed at by the said tongue latching means.

In one embodiment of the present invention, the second tongue holding portion holds an intermediate tongue, and the seat belt is provided with a folded portion that generates a reaction force by being folded between the two tongues. The holding interval between the two tongues is set to an interval at which the folded portion is folded and a reaction force is generated that stabilizes the holding of the two tongues.
According to the above configuration, the reaction force of the belt folding portion of the seat belt can be used to improve the holding stability of both tongues, and the tongue storage operability is also improved.

  According to the present invention, the tongue holder is formed with the vertical wall extending in the vehicle interior and exterior direction, the first tongue holding portion for inserting and holding one tongue on the vertical wall, and the vehicle interior of the first tongue holding portion. A second tongue holding portion for inserting and holding another one tongue side by side on the inner side in the outer direction, and the opening portion of the first tongue holding portion is more outward in the vehicle interior than the opening portion of the second tongue holding portion Because it is widely formed, the opening of the tongue holding part on the back side, which is difficult to see from the passenger compartment, is widened, and the opening of the tongue holding part on the near side is narrowed to ensure the appearance and facilitate the tongue storage operation In addition, there is an effect that each tongue can be stably held by the configuration in which the tongue holding portion is provided corresponding to each tongue.

  The seat belt retractor, a three-point seat belt with a front tongue and an intermediate tongue, and both tongues aiming to achieve both the ease of tongue storage operation and the stable retention of the tongue while ensuring the appearance The tongue holder is formed with a vertical wall extending in the vehicle interior and exterior direction, and the vertical wall includes a first tongue holding portion for inserting and holding one tongue. And a second tongue holding part for inserting and holding one tongue side by side inside the vehicle interior and exterior direction of the first tongue holding part, and the opening of the first tongue holding part is the second tongue holding part This is realized by a configuration in which it is formed wider in the vehicle interior / exterior direction than the opening of the vehicle interior.

An embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view when a seat belt is used, FIG. 2 is an enlarged sectional view of FIG. 1, and FIG. 3 is a sectional view when a seat belt is not used.

  The seat belt device of this embodiment restrains the occupant A seated in the center of the rear seat (rear center seat). As shown in FIG. 1, the rear center seat 1 includes a seat cushion 2 and a seat back 3, while the rear width of the rear end portion of the roof panel 4 constituting the roof portion on the vehicle body is shown in FIG. The rear header 6 is joined via a reinforcement 5 extending in the direction to form closed sections 7 and 8 extending in the same direction.

  Further, as shown in FIG. 4, a roof rail outer 9 and a roof rail inner 10 that extend in the front-rear direction of the vehicle are joined to the side of the roof panel 4 in the vehicle width direction, and between the roof rail outer 9 and the roof rail inner 10. Is formed with a closed section 11 extending in the longitudinal direction of the vehicle.

  On the other hand, the above-described seat belt 12 for restraining the occupant A includes a front end tongue 13 (see FIG. 3) that engages with an anchor portion (not shown), and an intermediate tongue 15 that engages with the buckle portion 14 shown in FIG. And retractable by the retractor 16 so as to be wound up. Each of the tongues 13 and 15 is composed of a gripping portion and a locking metal fitting.

  The retractor 16 is fixed to a bracket 17, and a plurality of portions of the bracket 17 are attached to a roof rail inner 10 as a roof portion and a rear header 6 by bolts 18 and 19.

  As shown in FIGS. 4 to 7, the bracket 17 is provided with a main surface 17A for mounting the retractor 16 and a substantially L-shape extending from the main surface 17A toward the front in the vehicle front-rear direction. The attachment piece 17B having the insertion hole 20 for 18 and the attachment pieces 17C and 17D extending from the main surface 17A to the rear and having the insertion holes 21 and 22 for the bolt 19 are integrally formed. Is.

Here, the mounting piece 17B is fixed to the roof rail inner 10 using bolts 18 as shown in FIG. 4, and the mounting pieces 17C and 17D are fixed to the rear header 6 using bolts 19 and 19. Reference numeral 23 denotes a nut which is welded and fixed in advance to the closed section 11 side of the roof rail inner 10.
As shown in FIGS. 2 and 3, a tongue holder 26 made of synthetic resin, for example, is fixed to the lower surface of the bracket 17 using mounting members 24 and 25.

  The tongue holder 26 includes a top deck portion 26b having an opening 26a through which the seat belt 12 passes, a vertical wall 26c formed at the rear of the above-described opening 26a and extending outwardly from the vehicle interior, and a vehicle mounted on the vertical wall 26c. A skirt portion 26d suspended along the outer end portion of the top deck portion 26b so as to surround the holder space portion 27 from both ends in the width direction, and attachment portions 26e and 26f for the bracket 17 are integrally formed. The front attachment portion 26 e is attached to the lower surface of the bracket 17 using the attachment member 24, and the rear attachment portion 26 f is attached to the lower surface of the bracket 17 using the attachment member 25.

  In addition, as shown in FIGS. 2 and 3, the above-described tongue holder 26 protrudes on the rear side opposite to the opening 26 a above the vertical wall 26 c (outside in the vehicle interior direction), and has one tip tongue 13 (first A concave tongue accommodating portion 28 (first tongue holding portion) for accommodating the tongue) is integrally formed, and another vertical intermediate wall 26c is arranged at the lower portion of the vertical wall 26c in line with the lower portion of the tongue accommodating portion 28 (inside the vehicle interior and exterior direction). A tongue insertion hole 29 (second tongue holding portion) is formed as a tongue holding portion for inserting and holding the tongue 15 (second tongue). The tongue accommodating portion 28 and the tongue insertion hole 29 described above communicate with the holder space portion 27 through the openings 28a and 29a.

  Here, the opening part 28a of the first tongue holding part (the tongue accommodating part 28) is formed wider outside the opening part 29a of the second tongue holding part (the tongue insertion hole 29).

  Further, the opening 28a of the first tongue holding portion (the tongue accommodating portion 28) is formed wider than the thickness of the gripping portion of the tongue 13, and the tongue accommodating portion 28 is formed from a portion for holding the locking fitting of the tongue 13. It is gradually formed wider toward the opening 26a side. Furthermore, the opening 29 a of the second tongue holding portion (the tongue insertion hole 29) is formed to have a width that allows only the tip of the tongue 15 to be inserted.

Further, tongue locking claws 30 and 31 as tongue locking portions for holding the metal fitting 15a of the intermediate tongue 15 are integrally formed on the lower surface of the tongue accommodating portion 28, and the intermediate tongue 15 is formed by one tongue locking claw 30. The edge of the opening in the metal fitting 15a is locked, and the other tongue locking claw 31 is configured to lock the tip of the metal fitting 15a of the intermediate tongue 15.
Further, an insertion guide portion 32 of the intermediate tongue 15 is integrally formed at the rear portion (rear side) of the lower hole edge of the tongue insertion hole 29 described above.

  As shown in FIG. 2, a guide member 34 having an opening for inserting a seat belt is attached to an opening 33 provided on the bracket 17 side corresponding to the opening 26 a of the tongue holder 26. The seat belt 12 is led out to the lower side, that is, the passenger compartment side through the opening for inserting the seat belt of the guide member 34 and the opening 26a of the tongue holder 26.

  More specifically, a bezel 38 attached to the top sealing 37 using a plurality of pins 35 and a nut member 36 is disposed below the tongue holder 26 described above, and the seat belt 12 from the retractor 16 is attached to the guide member 34. This is led out to the vehicle compartment 40 (see FIG. 1) side through the opening for seat belt insertion, the opening 26a of the tongue holder 26, the holder space 27 and the space 39 of the bezel 38.

  The space portion 39 of the bezel 38 described above is set to a size that allows the occupant A's hand holding the tip tongue 13 and the intermediate tongue 15 to enter the space 39 facing the holder space 27 of the tongue holder 26.

  When the seat belt 12 is not in use, as shown in FIG. 3, the front tongue 13 is accommodated in the tongue accommodating portion 28 of the tongue holder 26, and the intermediate tongue 15 is inserted and held in the tongue insertion hole 29 of the tongue holder 26. As shown, the intermediate tongue 15 is folded back at the belt portion between the front end tongue 13 and locked to the tongue insertion hole 29, and the vertical distance between the tongue accommodating portion 28 and the tongue insertion hole 29 is the belt folding portion 12A. The interval is set such that the intermediate tongue 15 can be held by the reaction force.

  That is, after the seat belt 12 passes through the grip opening of the intermediate tongue 15, the seat belt 12 passes through the grip opening of the front tongue 13, and the webbing constituting the seat belt 12 is sewn before and after the grip opening of the front tongue 13. The double structure portion of the webbing is folded back as shown in FIG. 3 when the tongue is stored, and the belt folded portion 12A described above is formed and inserted and held in the tongue insertion hole 29. The tongue 15 holds the intermediate tongue 15 by the reaction force of the belt folding portion 12A being urged.

  On the other hand, the above-described retractor 16 is attached to the roof rail inner 10 and the rear header 6 as a roof portion via the bracket 17, and the tongue holder 26 is attached to the bracket 17, and the assembly of the top ceiling 37 and the bezel 38 to the vehicle body is provided. Before the attachment, as shown in FIG. 3, after the seat belt device in which the tongues 13 and 15 are respectively held in the tongue accommodating portion 28 and the tongue insertion hole 29 is assembled to the roof portion, The sealing 37 and the bezel 38 are assembled to the vehicle body. When the seat belt 12 is used, the occupant A inserts his hand from the space portion 39 of the bezel 38 into the holder space portion 27 of the tongue holder 26 and the two tongues 13, 15. Is taken out to the passenger compartment 40 side.

  In the vehicle seat belt apparatus configured as described above, in order to restrain the occupant A with the seat belt 12, the front tongue 13 is engaged with the anchor portion of the two tongues 13 and 15 taken out from the tongue holder 26. When the intermediate tongue 15 is engaged with the buckle portion 14, as shown in FIG. 1, the seat belt 12 is divided into a shoulder belt portion 12S and a lap belt portion 12L, and the occupant A has a three-point seat belt structure. Can be restrained.

On the other hand, when the seat belt 12 is not in use, the tongues 13 and 15 are removed from the anchor part and the buckle part 14, and then both tongues are formed so that the belt folding part 12 A is formed between the front tongue 13 and the intermediate tongue 15. 13 and 15 are stacked one on top of the other, and the two tongues 13 and 15 are inserted into the tongue accommodating portion 28 from the space 39 of the bezel 38 through the holder space 27 and the intermediate tongue 15. When the metal fitting 15a is inserted into the tongue insertion hole 29, the two tongues 13 and 15 can be stored and held simultaneously as shown in FIG.
In the figure, arrow F indicates the front of the vehicle, R indicates the rear of the vehicle, IN indicates the inside of the vehicle, and OUT indicates the outside of the vehicle.

As described above, the vehicle seat belt device according to the above embodiment includes the retractor 16 of the seat belt 12, the three-point seat belt having the front end tongue 13 and the intermediate tongue 15, and the tongue holder that holds both the tongues 13 and 15 when not in use. 26, the tongue holder 26 is formed with a vertical wall 26c extending in the vehicle interior and exterior direction, and a first tongue 13 is inserted and held in the vertical wall 26c. A tongue holding part (refer to the tongue accommodating part 28) and a second tongue holding part (tongue) for inserting and holding another one of the tongues 15 in line with the inside of the first tongue holding part (the tongue accommodating part 28) outside the vehicle interior. And the opening portion 28a of the first tongue holding portion (the tongue accommodating portion 28) is the opening portion 29a of the second tongue holding portion (the tongue insertion hole 29). Rimokuruma are those widely formed in chamber outwardly.
According to this structure, the opening part 28a of the 1st tongue holding | maintenance part (tang accommodating part 28) of the back | inner side which is hard to see from a vehicle interior is wide, and the opening part 29a of the 2nd tongue holding | maintenance part (tang insertion hole 29) of the near side. It is possible to easily store the tongues 13 and 15 while securing the appearance.
In addition, since the tongue holding portions (see the tongue accommodating portion 28 and the tongue insertion hole 29) are provided corresponding to the respective tongues 13 and 15, the front end tongue 13 and the intermediate tongue 15 can be stably held.

The retractor 16 and the tongue holder 26 are provided on the roof portion (see the loop panel 4), and both the tongue holding portions (see the tongue accommodating portion 28 and the tongue insertion hole 29) are provided side by side.
According to this configuration, in the tongue holder 26 provided in the roof portion, the front end tongue 13 and the intermediate tongue 15 can be stably held by the two tongue holding portions (see the tongue accommodating portion 28 and the tongue insertion hole 29) arranged vertically. it can.

Further, the tongues 13 and 15 are each provided with a gripping portion, and the opening 28a of the first tongue holding portion (see the tongue accommodating portion 28) is formed wider than the thickness of the gripping portion of the tongue 13.
According to this configuration, it is possible to improve the tongue storage operability with respect to the first tongue holding portion (the tongue storage portion 28).

In addition, the first tongue holding portion (see the tongue housing portion 28) is formed to be gradually wider from the locking metal fitting holding portion of the tongue 13 toward the opening 26a.
According to this configuration, the tongue storage with respect to the first tongue holding portion (the tongue storage portion 28) can be performed more smoothly.

Further, the opening 29 a of the second tongue holding portion (see the tongue insertion hole 29) is formed to have a width that allows only the tip of the tongue 15 to be inserted.
According to this configuration, the size of the opening 29a of the second tongue holding portion (refer to the tongue insertion hole 29) can be minimized, and compactness can be achieved while ensuring the appearance.

Further, only the second tongue holding portion (refer to the tongue insertion hole 29) is provided with tongue locking means (refer to the tongue locking claws 30, 31).
According to this configuration, it is possible to improve the operability of storing the tongue 15 by the tongue locking means (the tongue locking claws 30, 31).

In addition, the second tongue holding portion (see the tongue insertion hole 29) holds the intermediate tongue 15, and the seat belt 12 is turned back so as to generate a reaction force by being turned back between the two tongues 13,15. 12A is provided, and the holding interval between the two tongues 13 and 15 is set to an interval at which the folded portion 12A is folded and generates a reaction force that stabilizes the holding of both the tongues 13 and 15.
According to this configuration, the reaction force of the belt folding portion 12A of the seat belt 12 can be utilized to improve the holding stability of the tongues 13 and 15, and the storage operability of the tongues 13 and 15 is also good. It becomes.

FIG. 8 shows another embodiment of the vehicle seat belt device. In this embodiment, guide pieces 17E and 17F are integrated with the opening portion 33 (see FIG. 3) of the bracket 17 downward from the main surface 17A. The seat belt 12 is configured to be folded and guided through the seat belt 12.
If comprised in this way, the guide member 34 shown in FIG. 3 can be abbreviate | omitted and reduction in a number of parts can be aimed at.

  In this embodiment shown in FIG. 8 as well, the other configurations, operations, and effects are almost the same as those of the previous embodiment. Therefore, in FIG. Description is omitted.

  FIG. 9 shows still another embodiment of the vehicle seat belt device. A taper portion 41 having a wide front side and a narrow rear side is integrally formed on the front side of the tongue insertion hole 29 in the tongue holder 26, and the rear surface of the vertical wall 26c. A rib 42 as a reinforcing portion is integrally formed between the lower surface of the insertion guide portion 32.

  With this configuration, the metal fitting 15a of the intermediate tongue 15 reaches the tongue insertion hole 29 while being guided by the tapered portion 41, so that the intermediate tongue 15 can be accommodated more smoothly and the tongue holder 26 can be accommodated by the rib 42. It is possible to improve the rigidity.

  In this embodiment shown in FIG. 9 as well, the other configurations, operations, and effects are almost the same as those of the previous embodiment. Therefore, in FIG. Description is omitted.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The first tongue holding portion of the present invention corresponds to the tongue accommodating portion 28 of the embodiment,
Similarly,
The second tongue holding portion corresponds to the tongue insertion hole 29,
The roof corresponds to the rear header 6 and the roof rail inner 10,
The tongue locking means corresponds to the tongue locking claws 30, 31,
The present invention is not limited to the configuration of the above-described embodiment.

The schematic side view which shows the seatbelt apparatus for vehicles of this invention. The principal part expanded sectional view of FIG. Explanatory drawing at the time of both tongue storage. The principal part expanded sectional view which follows the BB line of FIG. The principal part enlarged side view of FIG. The top view of a retractor and a bracket. The perspective view which shows a bracket and a tongue holder in the state seen from diagonally downward. Sectional drawing which shows the other Example of the vehicle seatbelt apparatus. Sectional drawing which shows the further another Example of the seatbelt apparatus for vehicles.

Explanation of symbols

6 ... Rear header (roof)
10 ... Roof rail inner (roof part)
DESCRIPTION OF SYMBOLS 12 ... Seat belt 12A ... Belt folding | returning part 13 ... Tip tongue 15 ... Intermediate tongue 16 ... Retractor 26 ... Tongue holder 26a ... Opening part 26c ... Vertical wall 28 ... Tongue accommodating part (1st tongue holding part)
29 ... tongue insertion hole (second tongue holding part)
28a, 29a ... opening 30, 31 ... tongue locking claw (tang locking portion)

Claims (7)

A vehicle seat belt apparatus comprising: a seat belt retractor; a three-point seat belt having a front end tongue and an intermediate tongue; and a tongue holder for holding both tongues when not in use.
The tongue holder is formed with a vertical wall extending in the vehicle interior / exterior direction,
The vertical wall is provided with a first tongue holding part for inserting and holding one tongue, and a second tongue holding part for inserting and holding one tongue side by side inside the vehicle interior and exterior of the first tongue holding part And
The vehicle seat belt device in which the opening of the first tongue holding portion is formed wider in the vehicle interior / exterior direction than the opening of the second tongue holding portion. The retractor and tongue holder are provided on the roof,
The vehicle seat belt device according to claim 1, wherein the both tongue holding portions are provided side by side. The vehicle seat belt device according to claim 1 or 2, wherein the tongue includes a grip portion, and the opening of the first tongue holding portion is formed wider than the thickness of the grip portion of the tongue. The vehicle seat belt device according to any one of claims 1 to 3, wherein the first tongue holding portion is formed so as to gradually widen from the tongue locking fitting holding portion to the opening side. The vehicular seat belt device according to any one of claims 1 to 4, wherein the opening of the second tongue holding portion is formed to have a width that allows only the leading end of the tongue to be inserted. The vehicle seat belt device according to any one of claims 1 to 5, wherein a tongue locking means is provided only in the second tongue holding portion. The second tongue holding portion holds the intermediate tongue,
The seat belt is provided with a folded portion that generates a reaction force by folding between both tongues,
7. The vehicle seat belt device according to claim 6, wherein the holding interval between the two tongues is set to an interval that generates a reaction force for stabilizing the holding of the two tongues by folding the folded portion.

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