JP2008149875A - Vehicle seat belt device - Google Patents

Vehicle seat belt device Download PDF

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Publication number
JP2008149875A
JP2008149875A JP2006339583A JP2006339583A JP2008149875A JP 2008149875 A JP2008149875 A JP 2008149875A JP 2006339583 A JP2006339583 A JP 2006339583A JP 2006339583 A JP2006339583 A JP 2006339583A JP 2008149875 A JP2008149875 A JP 2008149875A
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webbing
tongue
buckle
belt device
seat belt
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JP2006339583A
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JP5034479B2 (en
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Nobuhide Wago
信英 和合
Takashi Fujimori
隆 藤森
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Toyota Auto Body Co Ltd
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Toyota Auto Body Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To achieve cost reduction by eliminating the necessity of a guide member and a slip joint. <P>SOLUTION: This vehicle seat belt device is provided with a webbing 2B, a retractor 1B provided on a vehicle body on one side of a seating part and capable of drawing out and winding up the webbing 2B, a tongue 21 provided at the drawing-out end of the webbing 2B, and a buckle 3B provided on the ceiling of the vehicle on the other side of the seating part and capable of locking the tongue 21 by drawing out the webbing 2B from the retractor 1B. By locking the tongue 21 on the buckle 3B, at least one portion of the webbing 2B is kept diagonally crossing the breast front face of an occupant M seated on the seating part to constrain the breast of the occupant M. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は車両のシートベルト装置に関し、特に、車椅子に着座した乗員に好適に使用されるシートベルト装置に関する。   The present invention relates to a vehicle seat belt device, and more particularly to a seat belt device preferably used for a passenger seated in a wheelchair.

図５に示すように、車室の後部Ｒに車椅子Ｗを乗り入れ可能とした車両があり、図６には車室内に乗り入れた車椅子Ｗの乗員Ｍが使用するシートベルト装置を示す。車椅子Ｗは図略の固定装置によってフロアに対して固定分離可能となっており、以下のシートベルト装置を使用する際にはフロアに固定される。通常の３点式シートベルト装置では車椅子に着座した乗員へのウェビングの取り回しが困難であるため、車椅子用のシートベルト装置は胸部用と腰部用の個別のシートベルト装置で構成されている。腰部用シートベルト装置は以下に説明するようにリトラクタ１Ａ、ウェビング２Ａ、バックル３Ａを備えており、また、胸部用シートベルト装置はリトラクタ１Ｂ、ウェビング２Ｂ、バックル３Ｂを備えている。図６に示すように、車両フロア側には一対のリトラクタ１Ａ，１Ｂが設けられており、これらリトラクタ１Ａ，１Ｂから、乗員Ｍのウエスト保持用のウェビング２Ａとショルダ保持用のウェビング２Ｂがそれぞれ引き出されている。ウェビング２Ａは車椅子Ｗに着座した乗員Ｍの腰部前面を横断し、先端のタング２１が、リトラクタ１Ａと反対側の車室内に設けられたバックル３Ａに結合されている。一方、ウェビング２Ｂはリトラクタ１Ｂから上方へ引き出され、車室側壁のガーニッシュ（図示略）内方を上方へ延びてガイド部材７１を経た後、車両天井側に設けられたスリップジョイント７２の通孔７２１を経由して下方へ向きを換え、上記乗員Ｍの身体上半部前面を肩部から腰部へ斜めに横断した後、先端のタング２１が、リトラクタ１Ｂと反対側の車室内に設けられたバックル３Ｂに結合されている。   As shown in FIG. 5, there is a vehicle in which a wheelchair W can be put into the rear part R of the passenger compartment, and FIG. 6 shows a seat belt device used by an occupant M of the wheelchair W who gets in the passenger compartment. The wheelchair W can be fixed and separated from the floor by a fixing device (not shown), and is fixed to the floor when the following seat belt device is used. Since it is difficult for a general three-point seat belt device to handle webbing for an occupant seated in a wheelchair, the seat belt device for a wheelchair includes separate seat belt devices for the chest and the waist. The lumbar seat belt device includes a retractor 1A, a webbing 2A, and a buckle 3A as described below, and the chest seat belt device includes a retractor 1B, a webbing 2B, and a buckle 3B. As shown in FIG. 6, a pair of retractors 1A and 1B are provided on the vehicle floor side, and a webbing 2A for holding a waist and a webbing 2B for holding a shoulder of an occupant M are pulled out from these retractors 1A and 1B, respectively. It is. The webbing 2A crosses the front of the waist of the occupant M seated in the wheelchair W, and the tongue 21 at the tip is coupled to the buckle 3A provided in the vehicle interior opposite to the retractor 1A. On the other hand, the webbing 2B is drawn upward from the retractor 1B, extends upward in a garnish (not shown) on the side wall of the passenger compartment, passes through the guide member 71, and then passes through a hole 721 of a slip joint 72 provided on the vehicle ceiling side. The direction of the lower part of the occupant M is changed downward and the front half of the occupant M is obliquely crossed from the shoulder to the waist, and then the tongue 21 at the tip is provided in the vehicle compartment on the opposite side of the retractor 1B. 3B.

なお、特許文献１には、リトラクタを天井に近い車両側壁上部に設けてこれから引き出したウェビングを、ガーニッシュ内を通過させることなく直接スリップジョイントに通すようにしたシートベルト装置が示されている。
特開２００４−１１４９５５ Patent Document 1 discloses a seat belt device in which a retractor is provided on an upper portion of a vehicle side wall close to a ceiling and a webbing drawn from the retractor is directly passed through a slip joint without passing through the garnish.
JP 2004-114955 A

しかし、上記構造のシートベルト装置では、ウェビング２Ｂをガーニッシュの内方で上方へ引き出しているため、この部分に敷設されるワイヤハーネスとの干渉を避けるために上述のようにガイド部材７１を設ける必要がある。また、ウェビング２Ｂを下方へ折り返すためのスリップジョイント７２を設ける必要もあり、このため、コストアップが避けられないという問題があった。   However, in the seat belt device having the above structure, since the webbing 2B is drawn upward inward of the garnish, it is necessary to provide the guide member 71 as described above in order to avoid interference with the wire harness laid in this portion. There is. Further, it is necessary to provide a slip joint 72 for folding the webbing 2B downward, and there is a problem in that an increase in cost cannot be avoided.

そこで、本発明はこのような課題を解決するもので、ガイド部材やスリップジョイントを不要としてコストダウンを実現した車両のシートベルト装置を提供することを目的とする。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle seat belt device that can reduce the cost by eliminating a guide member and a slip joint.

上記目的を達成するために、本第１発明では、ウェビング（２Ｂ）と、着座部の一側方で車体に設けられウェビング（２Ｂ）を引き出し巻き取り可能なリトラクタ（１Ｂ）と、ウェビング（２Ｂ）の引き出し端に設けられたタング（２１）と、着座部の他側方で車両天井に設けられリトラクタ（１Ｂ）からウェビング（２Ｂ）を引き出してタング（２１）を係止可能なバックル（３Ｂ）とを備え、タング（２１）をバックル（３Ｂ）に係止することにより、ウェビング（２Ｂ）の少なくとも一部分が着座部に着座した乗員（Ｍ）の胸部前面を斜めに横断した状態に保持され乗員の胸部を拘束する。   In order to achieve the above object, according to the first aspect of the present invention, a webbing (2B), a retractor (1B) provided on the vehicle body at one side of the seating portion and capable of pulling and winding the webbing (2B), and a webbing (2B ) And a buckle (3B) which is provided on the vehicle ceiling on the other side of the seating portion and which can be engaged with the tongue (21) by pulling out the webbing (2B) from the retractor (1B). ) And the tongue (21) is locked to the buckle (3B), whereby at least a part of the webbing (2B) is held obliquely across the front of the chest of the occupant (M) seated on the seat. Restrain the occupant's chest.

本第１発明においては、リトラクタから上方へ引き出されて、着座した乗員の胸部を拘束するウェビングの先端のタングを、車両天井に設けたバックルに結合するようにしたから、ガイド部材やスリップジョイントが不要となり、コトダウンが実現される。   In the first aspect of the invention, the tongue at the tip of the webbing pulled out from the retractor and restraining the chest of the seated occupant is coupled to the buckle provided on the vehicle ceiling. It becomes unnecessary and can be downed.

本第２発明では、車両天井に配置され、上記タング（２１）との係止を解消したバックル（３Ｂ）を係止可能な係止部材（６）を備える。本第２発明においては、ウェビングを使用しない場合にはバックルを係止部材に係止させておくことによって、車両振動等に対しバックルを車両天井に確実に保持しておくことができる。   In this 2nd invention, it is provided with the latching member (6) which can be latched by the buckle (3B) which is arrange | positioned at the vehicle ceiling and cancel | released latching with the said tongue (21). In the second aspect of the invention, when the webbing is not used, the buckle can be securely held on the vehicle ceiling against vehicle vibration or the like by locking the buckle to the locking member.

本第３発明では、上記係止部材（６）のバックル（３Ｂ）との係止部（６２）が、タング（２１）の係止部と同形状である。   In the third invention, the locking part (62) of the locking member (6) with the buckle (3B) has the same shape as the locking part of the tongue (21).

本第４発明では、上記シートベルト装置が乗員（Ｍ）の胸部のみを拘束するための胸部用シートベルト装置であり、その他に、ウェビング（２Ａ）と、着座部の一側方で車体に設けられウェビング（２Ａ）を引き出し巻き取り可能なリトラクタ（１Ａ）と、ウェビング（２Ａ）の引き出し端に設けられたタング（２１）と、着座部の他側方で車体に設けられリトラクタ（１Ａ）からウェビング（２Ａ）を引き出してタング（２１）を係止可能なバックル（３Ａ）とを備え、タング（２１）をバックル（３Ａ）に係止することにより、ウェビング（２Ａ）が着座部に着座した乗員（Ｍ）の腰部前面を横断した状態に保持され乗員（Ｍ）の腰部を拘束する腰部用シートベルト装置を備える。   In the fourth invention, the seat belt device is a chest seat belt device for restraining only the chest of the occupant (M). In addition, the webbing (2A) and one side of the seating portion are provided on the vehicle body. A retractor (1A) capable of pulling and winding the webbing (2A), a tongue (21) provided at the drawer end of the webbing (2A), and a retractor (1A) provided on the vehicle body on the other side of the seating portion. A buckle (3A) that can pull out the webbing (2A) and lock the tongue (21) is provided. By locking the tongue (21) to the buckle (3A), the webbing (2A) is seated on the seat. A lumbar seat belt device that holds the lumbar front of the occupant (M) and holds the lumbar part of the occupant (M) is provided.

なお、上記カッコ内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。   In addition, the code | symbol in the said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

以上のように、本発明の車両のシートベルト装置によれば、ウェビングをガーニッシュ内に通す必要がなく、ガイド部材やスリップジョイントが不要であるから、コストダウンを実現することができる。    As described above, according to the seat belt device for a vehicle of the present invention, it is not necessary to pass the webbing through the garnish, and the guide member and the slip joint are unnecessary, so that the cost can be reduced.

図１には車室後部に乗り入れた車椅子Ｗの乗員Ｍが使用するシートベルト装置を示す。シートベルト装置は腰部用シートベルト装置と胸部用シートベルト装置とから構成されており、腰部用シートベルト装置はリトラクタ１Ａ、ウェビング２Ａ、バックル３Ａを備えている。また、胸部用シートベルト装置はリトラクタ１Ｂ、ウェビング２Ｂ、バックル３Ｂを備えている。リトラクタ１Ａ，１Ｂは車両フロア側に設けられており、これらリトラクタ１Ａ，１Ｂから、ウェビング２Ａ，２Ｂがそれぞれ引き出され、ウェビング２Ａは車椅子Ｗに着座した乗員Ｍの腰部前面を横断して、先端のタング２１が、リトラクタ１Ａと反対側の、着座部の他側方の車室内に設けられたバックル３Ａに結合されている。一方、ウェビング２Ｂはリトラクタ１Ｂから上方へ引き出された後、上記乗員Ｍの胸部前面を斜め上方へ横断した後、先端のタング２１が、車両の天井に後述の構造で設けられたバックル３Ｂに結合されている。なお、車椅子Ｗは図略の固定装置によってフロアに対して固定分離可能となっており、上記シートベルト装置を使用する際にはフロアに固定される。シートベルト装置を使用しない場合には、各タング２１とバックル３Ａ，３Ｂとの結合が解消されて、ウェビング２Ａ，２Ｂはリトラクタ１Ａ，１Ｂ内に引き込まれる。   FIG. 1 shows a seat belt device used by an occupant M of a wheelchair W who has entered the rear of the passenger compartment. The seat belt device includes a waist seat belt device and a chest seat belt device, and the waist seat belt device includes a retractor 1A, a webbing 2A, and a buckle 3A. In addition, the chest seat belt device includes a retractor 1B, a webbing 2B, and a buckle 3B. The retractors 1A and 1B are provided on the vehicle floor side, and the webbings 2A and 2B are pulled out from the retractors 1A and 1B, respectively. A tongue 21 is coupled to a buckle 3A provided in a vehicle compartment on the other side of the seating portion on the side opposite to the retractor 1A. On the other hand, after the webbing 2B is drawn upward from the retractor 1B, the front tongue 21 crosses the front of the chest of the occupant M diagonally upward, and then the front tongue 21 is coupled to the buckle 3B provided in the structure described later on the ceiling of the vehicle. Has been. The wheelchair W can be fixed and separated from the floor by a fixing device (not shown), and is fixed to the floor when the seat belt device is used. When the seat belt device is not used, the coupling between the tongues 21 and the buckles 3A and 3B is canceled, and the webbings 2A and 2B are drawn into the retractors 1A and 1B.

図２にはバックル収納構造の斜視図を示し、図３にはその断面図を、図４にはその分解斜視図を示す。バックル３Ｂは、天井トリム４１（図３）に車内方向へ向けて設けた浅い長方形容器状（図２）のベゼル５内に収納されている。ベゼル５は樹脂の一体成形品で、天井トリム４１に形成された長方形開口４１１（図３）内に装着されて、底壁５１中央に設けた取付孔内に挿入したクリップ５２（図３）によって天井パネル４２に固定されている。ベゼル５内の一端部には係止部材６（図４）が設けてある。   2 is a perspective view of the buckle housing structure, FIG. 3 is a sectional view thereof, and FIG. 4 is an exploded perspective view thereof. The buckle 3B is housed in a bezel 5 having a shallow rectangular container shape (FIG. 2) provided on the ceiling trim 41 (FIG. 3) in the vehicle interior direction. The bezel 5 is an integrally molded product of resin and is mounted in a rectangular opening 411 (FIG. 3) formed in the ceiling trim 41, and is inserted by a clip 52 (FIG. 3) inserted into a mounting hole provided in the center of the bottom wall 51. It is fixed to the ceiling panel 42. A locking member 6 (FIG. 4) is provided at one end in the bezel 5.

係止部材６は金属板材を成形したもので、ベゼル５の底壁５１裏面に沿って位置する基端部６１と、基端部６１からベゼル５内に突出した後、略直角に屈曲して底壁５１と平行に延びる一定幅の係止部６２とから構成されている。基端部６１はベゼル５の幅方向へ延びて、その両端がボルト６３によってベゼル底壁５１に固定されている。係止部材６の係止部６２は板面に矩形の係合穴６２１を有し、上記バックル３Ｂが係合可能な上記タング２１の係止部と同形状に成形されている。バックル３Ｂは短いウェビング３１によってブラケット３２の先端に連結されており、ブラケット３２の基端は、ベゼル底壁５１を貫通して天井パネル４２に固定されたボルト３２１（図３）に水平回動可能に結合されている。   The locking member 6 is formed by molding a metal plate, and is bent at a substantially right angle after projecting into the bezel 5 from the base end portion 61 and the base end portion 61 located along the bottom wall 51 of the bezel 5. It is composed of a locking portion 62 having a constant width extending in parallel with the bottom wall 51. The base end portion 61 extends in the width direction of the bezel 5, and both ends thereof are fixed to the bezel bottom wall 51 by bolts 63. The locking portion 62 of the locking member 6 has a rectangular engagement hole 621 on the plate surface, and is formed in the same shape as the locking portion of the tongue 21 to which the buckle 3B can be engaged. The buckle 3B is connected to the distal end of the bracket 32 by a short webbing 31, and the proximal end of the bracket 32 can be horizontally rotated by a bolt 321 (FIG. 3) that passes through the bezel bottom wall 51 and is fixed to the ceiling panel 42. Is bound to.

上記構造において、シートベルト装置を使用しない場合には、図２に示すように、バックル３Ｂを係止部材６の係止部６２に係止させて位置決めし、ベゼル５内に収納しておく。シートベルト装置を使用する場合には、上記係止部６２との係止を解消してバックル３Ｂをベゼル５外の下方へ取り出し、前述したように、リトラクタ１Ｂ（図１）から上方へ引き出されて乗員Ｍの身体上半部前面を保持するウェビング２Ｂ先端のタング２１を結合させる。なお、バックル３Ｂを天井に収納する構造は必ずしも上述の係止部材を設けたものには限られない。例えば、天井トリム４１の一部にバックル３Ｂを収納するための水平凹所等を形成したものであっても良い。   In the above structure, when the seat belt device is not used, as shown in FIG. 2, the buckle 3 </ b> B is locked and positioned by the locking portion 62 of the locking member 6 and stored in the bezel 5. When the seat belt device is used, the locking with the locking portion 62 is released, the buckle 3B is taken out of the bezel 5 and pulled out from the retractor 1B (FIG. 1) as described above. Then, the tongue 21 at the tip of the webbing 2B that holds the front surface of the upper half of the occupant M is joined. In addition, the structure which accommodates the buckle 3B in a ceiling is not necessarily restricted to what provided the above-mentioned latching member. For example, a horizontal recess or the like for storing the buckle 3B may be formed in a part of the ceiling trim 41.

本発明の一実施形態を示す、車室後部に乗り入れた車椅子乗員用のシートベルト装置の斜視図である。1 is a perspective view of a seat belt device for a wheelchair passenger who has entered a rear part of a passenger compartment showing an embodiment of the present invention. バックルを収納した状態のバックル収納構造の斜視図である。It is a perspective view of the buckle accommodation structure of the state which accommodated the buckle. 図２のIII−III線に沿った断面図である。It is sectional drawing along the III-III line of FIG. バックル収納構造の分解斜視図である。It is a disassembled perspective view of a buckle accommodation structure. 車室後部に車椅子を乗り入れた状態の車両の透視平面図である。FIG. 3 is a perspective plan view of the vehicle in a state where a wheelchair is placed in the rear part of the passenger compartment. 従来例を示す、車椅子乗員用のシートベルト装置の斜視図である。It is a perspective view of the seatbelt apparatus for wheelchair passengers which shows a conventional example.

符号の説明Explanation of symbols

１Ｂ…リトラクタ、２Ｂ…ウェビング、２１…タング、３Ｂ…バックル、４１…天井トリム、４２…天井パネル、５…ベゼル、６…係止部材、Ｍ…乗員。 1B ... retractor, 2B ... webbing, 21 ... tongue, 3B ... buckle, 41 ... ceiling trim, 42 ... ceiling panel, 5 ... bezel, 6 ... locking member, M ... occupant.

Claims (4)

ウェビングと、着座部の一側方で車体に設けられ前記ウェビングを引き出し巻き取り可能なリトラクタと、前記ウェビングの引き出し端に設けられたタングと、着座部の他側方で車両天井に設けられ前記リトラクタから前記ウェビングを引き出して前記タングを係止可能なバックルとを備え、前記タングを前記バックルに係止することにより、前記ウェビングの少なくとも一部分が着座部に着座した乗員の胸部前面を斜めに横断した状態に保持され乗員の胸部を拘束することを特徴とする車両のシートベルト装置。 A webbing, a retractor provided on the vehicle body on one side of the seating part and capable of pulling and winding the webbing, a tongue provided on the drawer end of the webbing, and provided on the vehicle ceiling on the other side of the seating part. A buckle capable of locking the tongue by pulling out the webbing from a retractor, and by locking the tongue to the buckle, at least a part of the webbing obliquely crosses the front of the chest of an occupant seated on the seat A seat belt device for a vehicle, wherein the seat belt device is held in a closed state and restrains an occupant's chest. 前記車両天井に配置され、前記タングとの係止を解消した前記バックルを係止可能な係止部材を備える請求項１に記載の車両のシートベルト装置。 The vehicle seat belt device according to claim 1, further comprising a locking member disposed on the vehicle ceiling and capable of locking the buckle that has been unlocked from the tongue. 前記係止部材の前記バックルとの係止部が、前記タングの係止部と同形状である請求項２に記載の車両のシートベルト装置。 The seat belt device for a vehicle according to claim 2, wherein a locking portion of the locking member with the buckle has the same shape as the locking portion of the tongue. 前記シートベルト装置が乗員の胸部のみを拘束するための胸部用シートベルト装置であり、その他に、ウェビングと、前記着座部の一側方で車体に設けられ前記ウェビングを引き出し巻き取り可能なリトラクタと、前記ウェビングの引き出し端に設けられたタングと、前記着座部の他側方で車体に設けられ前記リトラクタから前記ウェビングを引き出して前記タングを係止可能なバックルとを備え、前記タングを前記バックルに係止することにより、前記ウェビングが着座部に着座した乗員の腰部前面を横断した状態に保持され乗員の腰部を拘束する腰部用シートベルト装置を備える請求項１〜３に記載の車両のシートベルト装置。 The seatbelt device is a chest seatbelt device for restraining only the chest of an occupant, and in addition, a webbing and a retractor provided on the vehicle body at one side of the seating part and capable of pulling and winding the webbing A tongue provided at a pull-out end of the webbing, and a buckle provided on a vehicle body on the other side of the seating portion and capable of pulling the webbing from the retractor and locking the tongue. The vehicle seat according to claim 1, further comprising: a seat belt device for a lumbar region that holds the webbing in a state of crossing a front surface of a lumbar portion of the occupant seated on the seat portion and restrains the lumbar portion of the occupant by being locked to the seat portion. Belt device.
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US20120219395A1 (en) * 2009-08-18 2012-08-30 Toyota Shatai Kabushiki Kaisha Seatbelt device for wheelchair
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