JP2014019324A - Seat belt device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat belt device for a vehicle capable of storing a tongue in a trim without forming a hole in the trim for storing the same.SOLUTION: A tongue storage part 11, which consists of recessed parts formed integrally with a trim 2, comprises a first wide storage recessed part 17 for storing a grip part 13 of a tongue 4, a second storage recessed part 18 formed continuously with the first storage recessed part 17 for storing a metal part 14, and an upper recessed part 19 formed continuously with the upper side of the first storage recessed part 17 for placing a seat belt 3 therein. Side engagement projections 21, which are engaged with both ends of the grip part 13, are formed at the side edge parts on both sides of the first storage recessed part 17 in the width direction, and a lower engagement projection 22, which is engaged with a tip end of the metal part 14, is formed at a lower edge part of the second storage recessed part 18.

Description

  The present invention relates to a vehicle seat belt device provided with a tongue accommodating portion that accommodates a tongue that can be inserted into and removed from a buckle beside a seat.

  Conventionally, various structures have been proposed for the rear seat three-point seat belt device. For example, a retractor is provided on the inner side of the rear trim of the side seat of the rear seat, and the front end portion of the seat belt fed out of the retractor is supported on the lower portion of the side portion of the rear seat. A restraining tongue is provided in the middle of the seat belt, and the occupant is restrained at three points above the side and on both sides of the seat by fixing the tongue to the buckle on the center side of the side seat.

  The tongue includes a grip portion having an insertion hole through which a seat belt is inserted, and a metal fitting portion that is engaged with a buckle on the center side of the side seat. When the seat belt device is not used, the bracket is removed from the buckle, so that the seat belt is wound up by the retractor and is urged and accommodated in the vertical direction on the side of the rear seat.

  And since a tongue is a free state with respect to a seatbelt, the structure which provides a tongue holder, such as a pocket separately in a trim, and accommodates a tongue (metal part) is proposed conventionally (patent document 1). reference). In this case, by accommodating the tongue (metal part) in the trim pocket or the like when the seat belt device is not used, the tongue is held by the trim and does not interfere with the trim even if vibration or the like occurs. Further, there is no problem that the seat belt (tang) wraps around the back side of the seat back when the seat back is returned to the seatable state from the state where the seat back is moved forward.

  However, since the tongue holder (pocket) is formed as a separate body in the above-described technology, the number of parts is increased and the assembling work is also required.

  On the other hand, as in Patent Document 2, a part of the trim that protrudes toward the vehicle interior and integrally forms a tongue holder (pocket) is known, but it is necessary to form a hole such as a pocket on the surface of the trim. In addition, there is a possibility that the mold for molding becomes complicated, such as providing a slide mold. In addition, since a tire accommodating portion or the like is disposed in the vicinity of the seat with the trim interposed therebetween, there is a possibility that sound generated during traveling from a hole such as a pocket may enter the vehicle interior.

  Also, since the tongue holder protrudes from the trim surface, it is necessary to consider the installation position so that the tongue does not interfere with the seat back when the seat back is tilted. Depending on the installation position, the appearance may deteriorate. Or there was a risk of danger to passengers.

JP 2008-55945 A Japanese Utility Model Publication No. 5-29871

  The present invention has been made in view of the above situation, and without installing a hole for accommodating the tongue or a separate member in the trim, the tongue is not projected from the surface of the trim with a simple configuration. An object of the present invention is to provide a vehicle seat belt device that can be accommodated in a trim.

  In order to achieve the above object, a vehicle seat belt device according to a first aspect of the present invention is provided with a seat belt that is wound around a retractor and can be pulled out into a vehicle interior, and is movably provided in the middle of the seat belt. The vehicle seat belt includes a tongue, a buckle provided on the seat side, in which the tongue is detachably fitted, and a tongue accommodating portion that is provided in the trim in the vicinity of the seat and accommodates and holds the tongue. The tongue housing portion is configured by a recess formed integrally with the surface of the trim, and a plurality of engagements that engage with the peripheral edge portion of the tongue on the outer peripheral edge of the tongue housing portion The protrusions are arranged according to the shape of the tongue.

  In the present invention according to claim 1, the tongue accommodating portion is constituted by a concave portion formed integrally with the surface of the trim, and a plurality of engaging protrusions are provided along the shape of the tongue plate surface to hold the tongue. Therefore, the tongue can be reliably accommodated and held without protruding from the trim surface with a simple configuration. As a result, when the seat back is moved forward, there is no interference with the tongue, and there is no danger to the occupant. Moreover, since the tongue is integrally accommodated in the tongue accommodating portion, the appearance can be improved. Furthermore, since it is not necessary to provide a hole for inserting a tongue or the like in the trim or to install a separate part, the number of parts and the cost can be reduced.

  According to a second aspect of the present invention, there is provided the vehicle seat belt apparatus according to the first aspect, wherein the tongue has a flat plate shape and a slit through which the seat belt is inserted. And a metal fitting part that is continuously formed so as to protrude in a state in which the width is narrower than that of the grip part and is fitted to the buckle, and the tongue housing part has a shape of the grip part. And a second receiving recess that is formed continuously with the first receiving recess in accordance with the shape of the metal fitting and that accommodates the metal fitting. And an upper recess formed continuously on the upper side of the first accommodating recess and in which the seat belt inserted through the slit of the gripping portion is disposed.

  In the present invention according to claim 2, the first housing recess for housing the tongue gripping portion and the second housing recess for housing the tongue metal fitting portion are formed in accordance with the shapes of the gripping portion and the metal fitting portion, respectively. Therefore, the tongue can be held in the tongue accommodating portion more reliably. In addition, by providing an upper concave portion for arranging the seat belt above the first accommodating concave portion, when the tongue is fitted to the tongue accommodating portion, the seat belt inserted through the slit is bent above the tongue. Suppressed. Thereby, a seatbelt can be arrange | positioned in a natural state along a trim. Furthermore, when the occupant holds the tongue with respect to the tongue housing portion or removes the tongue from the upper concave portion, it can be easily operated while holding the grip portion.

  A vehicle seat belt device according to a third aspect of the present invention is the vehicle seat belt device according to the first or second aspect, wherein the first housing recess has an end in the width direction of the grip portion. A side engaging protrusion is provided to engage with the portion.

  In this invention which concerns on Claim 3, when the tongue is accommodated in the tongue accommodating part, the side edge part of the width direction of a holding part is engaged by the side part engaging protrusion of a 1st accommodating recessed part, for example, a trim is resin In the case of manufacturing, the gripping portion is fitted into the first receiving recess while being securely held by the side engaging protrusions due to the elastic deformation of the resin, and is securely held.

  According to a fourth aspect of the present invention, there is provided the vehicle seat belt device according to the third aspect, wherein the second housing recess has a lower engagement that engages with a tip of the metal fitting portion. A protrusion is provided.

  In the present invention according to claim 4, the tip of the metal fitting is engaged by the lower engaging projection of the second receiving recess, and the side end of the gripping portion is engaged by the side engaging projection of the first receiving recess. In combination with this, the tongue is engaged and held at three points, and the tongue is more reliably accommodated and held in the tongue accommodating portion.

  A vehicle seat belt device according to a fifth aspect of the present invention is the vehicle seat belt device according to any one of the first to fourth aspects, wherein the second housing recess includes the metal fitting portion. An insertion projection is provided in which the fitting hole is inserted to restrict the vertical position of the tongue.

  In this invention which concerns on Claim 5, the position of the vertical direction of a tongue is controlled by the fitting hole of a metal fitting part being inserted in an insertion protrusion, and positioning of a tongue in a tongue accommodating part can be performed much more easily. In addition, it is possible to reliably prevent positional deviation in the vertical direction.

  The vehicle seat belt device according to the present invention can secure the tongue to the trim without providing a hole for housing the tongue or a separate member in the trim and with a simple configuration so that the tongue does not protrude from the trim surface. It can be accommodated.

1 is an external view of a rear seat showing a vehicle seat belt device according to an embodiment of the present invention. 1 is an external view of a rear seat showing a vehicle seat belt device according to an embodiment of the present invention. It is a principal part enlarged view in FIG. It is a principal part enlarged view in FIG. It is the VV arrow directional view in FIG. FIG. 6 is a view taken along line VI-VI in FIG. 3.

  1 and 2 show the appearance of a rear seat representing a vehicle seat belt device according to one embodiment of the present invention. FIG. 1 shows a state in which the tongue is accommodated, and FIG. 2 shows that the tongue has been removed. It is in a state. 3 and 4 show the detailed situation in FIG. 1. FIG. 3 shows a state where the tongue is accommodated, and FIG. 4 shows a state where the tongue is removed. Furthermore, FIG. 5 shows the situation of the VV arrow in FIG. 3, and FIG. 6 shows the situation of the VI-VI arrow in FIG.

  The overall situation of the vehicle seat belt device will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the rear seat 1 is divided so that, for example, three passengers can be seated. For example, a trim 2 (for example, made of resin) for decorating a sheet metal panel portion of a wheel house on the rear wheel side is disposed beside the rear seat 1 on the left rear side. A retractor (not shown) is provided on the rear rear side of the seat back 1a of the rear seat 1 on the side of the vehicle, and the retractor accommodates a seat belt 3 wound by a predetermined winding urging force.

  The front end of the seat belt 3 is fixed to one side (trim 2 side) of the seat cushion 1b of the rear seat 1, and is disposed in a state extending in the vertical direction along the surface of the trim 2. A tongue 4 is provided in the middle of the seat belt 3 so as to be movable with respect to the seat belt. Further, a buckle 5 to which the tongue 4 is detachably fitted is provided on the other side (the vehicle compartment center side) of the seat cushion 1b. The occupant is restrained at three points by extending the seat belt 3 and fitting the tongue 4 to the buckle 5. (See FIG. 2).

  When the seat belt 3 is not attached, that is, when the tongue 4 is removed from the buckle 5, the seat belt 3 is urged in the winding direction by the retractor, and the tongue 4 is moved to the tongue accommodating portion 11 of the trim 2. It is inserted and held. The tongue 4 has a flat plate shape, and the tongue accommodating portion 11 is formed in a shape along the shape of the plate surface of the tongue 4. The tongue accommodating part 11 is comprised by the recessed part which recessedly provided a part of surface of the trim 2 by integral molding. And the depth of a recessed part is set so that the plate | board surface of the tongue 4 and the surface of the trim 2 may become substantially flush in the state in which the tongue 4 was accommodated in the tongue accommodating part 11. FIG.

  The tongue 4 and the tongue accommodating part 11 are demonstrated in detail based on FIGS.

  As shown in the figure, the tongue 4 includes a grip portion 13 having a wide width direction (the same direction as the width direction of the seat belt 3) and a narrow metal portion 14 formed continuously with the grip portion 13. It consists of The grip portion 13 is a portion whose surface is covered with resin and gripped by the occupant, and a slit 12 through which the seat belt 3 is inserted is formed. The metal part 14 is a part that is detachably fitted to the buckle 5, and is formed so as to protrude from the grip part 13. The metal fitting part 14 is provided with a fitting hole 15 into which a fitting member of the buckle 5 is fitted.

  On the other hand, the tongue accommodating portion 11 has a wide first accommodating recess 17 formed according to the shape of the gripping portion 13 of the tongue 4 and a lower portion of the first accommodating recess 17 according to the shape of the metal fitting 14 of the tongue 4. And a narrow second housing recess 18 formed to be continuous with the side. The holding portion 13 of the tongue 4 is accommodated in the first accommodating recess 17, and the metal fitting portion 14 is accommodated in the second accommodating recess 18.

  Further, an upper recess 19 is continuously formed on the upper side of the first accommodating recess 17, and the upper recess 19 is a space S in which the seat belt 3 inserted through the slit 12 of the grip portion 13 is disposed. In the state where the tongue 4 is accommodated in the tongue accommodating portion 11, the seat belt 3 is inserted through the slit 12 of the gripping portion 13 from the trim 2 side to the vehicle interior side from the upper side to the lower side. The lower side (metal part 14) from the slit 12 is covered with the seat belt 3.

  That is, the tongue 4 is accommodated in the tongue accommodating portion 11 so that the upper side of the seat belt 3 from the slit 12 is positioned on the trim 2 side and the lower side of the slit 12 is positioned on the vehicle interior side. When the tongue 4 is housed in this way, the seat belt 3 inserted through the slit 12 is disposed along the surface of the upper recess 19. Accordingly, the seat belt 3 can be arranged in a natural state along the surface of the trim 2 while suppressing the bending of the seat belt 3 above the tongue 4.

  Thus, the shape of the tongue accommodating portion 11 (concave portion) is made to be a shape along the outer shape of the plate surface of the tongue 4, and the depth is set so that the plate surface of the tongue 4 and the surface of the trim 2 are flush with each other. Therefore, when the tongue 4 is accommodated, the tongue 4 is integrally accommodated with respect to the trim 2 and the appearance is improved.

  Further, by providing the upper concave portion 19 above the first accommodating concave portion 17, the occupant can easily operate the grip portion 13 while holding the tongue 4 in the tongue accommodating portion 11 or removing it. Can be done.

  Furthermore, since the tongue accommodating part 11 has the 1st accommodation recessed part 17 corresponding to the holding part 13, and the 2nd accommodation recessed part 18 with a narrow width | variety corresponding to the metal fitting part 14, the position of the holding part 13 is 1st. The shape is regulated by the lower edge of the housing recess 18. Accordingly, when the tongue 4 is accommodated in the tongue accommodating portion 11, the tongue 4 is positioned in the vertical direction only by bringing the lower end edge of the gripping portion 13 into contact with the lower edge of the first accommodating recess 18. It can be done easily.

  The tongue accommodating portion 11 is provided with a side engagement protrusion 21 and a lower engagement protrusion 22 that are engaged with the periphery of the plate surface of the tongue 4 on the outer periphery thereof. Specifically, a pair of side engaging projections 21 are provided on the side edge portions (outer peripheral edge) on both sides in the width direction of the first receiving recess 17 of the tongue receiving portion 11, and the lower edge portion (outer peripheral edge) of the second receiving recess 18 ) Is provided with a lower engaging projection 22. With respect to the tongue 4 accommodated in the tongue accommodating part 11, a pair of side part engaging protrusion 21 is elastically engaged with the both-sides edge part (periphery part) of the holding part 13, and the lower engaging protrusion 22 is a bracket part. 14 is elastically engaged with the tip of 14.

  Then, when the tongue 4 is accommodated in the tongue accommodating portion 11, the gripping portion 13 is engaged with the pair of side engaging projections 21 of the first accommodating recess 17 in a state where both end portions of the grasping portion 13 are sandwiched. The portion 13 is securely held in the first housing recess 17. Furthermore, the metal fitting 14 is held in the second housing recess 18 by engaging the tip of the metal fitting 14 with the lower engagement protrusion 22 of the second housing recess 18.

  Thus, the tongue 4 is engaged and retained in the tongue housing portion 11 by being engaged at the three points of the pair of side engagement protrusions 21 and the lower engagement protrusion 22. That is, a plurality of side engaging protrusions 21 and lower engaging protrusions 22 are arranged in the tongue accommodating portion 11 according to the shape of the plate surface of the tongue 4 in order to engage and hold the peripheral edge portion of the tongue 4. Has been.

  The second receiving recess 18 of the tongue receiving portion 11 is provided with an insertion protrusion 23 that is inserted into the fitting hole 15 of the metal fitting portion 14 when the tongue 4 is received. The insertion protrusion 23 restricts the vertical position of the tongue 4 by being inserted into the fitting hole 15 of the metal part 14.

  Accordingly, the tongue 4 is prevented from being housed in the tongue housing portion 11 in a state of being shifted upward, such as moving upward from the appropriate position. Further, the presence of the insertion protrusion 23 makes it easier to position the tongue 4 in the tongue accommodating portion 11.

  As described above, in the seat belt device provided with the tongue accommodating portion 11 of the present example, the tongue 4 is fitted into the tongue accommodating portion 11 formed by the concave portion along the shape of the plate surface of the tongue 4. Thus, the tongue 4 can be accommodated without protruding from the surface of the trim 2.

  Thereby, when the seat back 1a of the rear seat 1 is tilted, the tongue 4 and the seat back 1a do not interfere with each other, and a sense of harm to the occupant can be eliminated. Further, since the tongue 4 is housed integrally with the trim 2, the appearance can be improved.

  Further, since it is not necessary to provide a hole or the like for inserting the tongue 4 in the tongue accommodating portion 11, an auxiliary die such as a slide die for forming the hole or the like is not necessary when the trim 2 is formed. The trim 2 including the accommodating portion 11 can be easily formed. Furthermore, since there is no hole or the like, it is possible to suppress sound entering from the outside of the vehicle.

  In addition, since the tongue accommodating portion 11 having the above-described configuration is provided, it is not necessary to separately provide a member for accommodating the tongue 4 in the trim 2 or the rear seat 1. For this reason, an increase in weight and an increase in the number of parts can be suppressed.

  In addition, the tongue accommodating part 11 of the seatbelt apparatus of this invention is not limited to the said Example. For example, the recesses of the tongue housing portion 11 (the first housing recess 17 and the second housing recess 18) have a shape along the shape of the plate surface of the tongue 4 and the plate surface of the tongue 4 is flush with the surface of the trim 2. However, it is only necessary to set the depth and shape so that at least the tongue 4 is reliably accommodated without protruding from the recess.

  Further, side engaging projections 21 are provided on the side edges on both sides in the width direction of the first receiving recess 17, and lower engaging projections 22 are provided on the lower edge of the second receiving recess 18. The positions and numbers of the tongues 4 are not limited to the above embodiment, and are appropriately set in accordance with the shape of the tongue 4 so as to reliably engage the peripheral edge of the tongue 4.

  INDUSTRIAL APPLICABILITY The present invention can be used in the industrial field of a vehicle seat belt device provided with a tongue accommodating portion that accommodates a tongue that can be inserted and removed with respect to a buckle beside the seat.

DESCRIPTION OF SYMBOLS 1 Rear seat 2 Trim 3 Seat belt 4 Tongue 5 Buckle 11 Tongue accommodating part 12 Slit 13 Grip part 14 Metal part 15 Fitting hole 17 1st accommodation recessed part 18 2nd accommodation recessed part 19 Upper recessed part 21 Side part engaging protrusion 22 Lower part engagement Joint protrusion 23 Insertion protrusion

Claims (5)

A seat belt that is wound around a retractor and can be pulled out into the passenger compartment;
A tongue movably provided in the middle of the seat belt;
A buckle provided on the seat side and detachably fitted with the tongue;
A vehicle seat belt device comprising a tongue housing portion that is provided in a trim in the vicinity of the seat and houses and holds the tongue;
The tongue accommodating part is
The recess is integrally formed on the surface of the trim, and a plurality of engaging protrusions that are engaged with the peripheral edge of the tongue are arranged in accordance with the shape of the tongue on the outer peripheral edge of the tongue receiving portion. A vehicle seat belt device. The vehicle seat belt device according to claim 1,
The tongue has a flat plate shape,
A wide grip portion formed with a slit through which the seat belt is inserted;
A metal part that is continuously formed so as to protrude in a state where the width is narrower than the gripping part and is fitted to the buckle;
The tongue accommodating part is
A first receiving recess that is formed in accordance with the shape of the gripping portion and that accommodates the gripping portion;
A second housing recess that is formed continuously with the first housing recess according to the shape of the metal fitting, and in which the metal fitting is housed;
A vehicle seat belt device comprising: an upper recess formed continuously above the first housing recess and in which the seat belt inserted through the slit of the grip portion is disposed. In the vehicle seat belt device according to claim 1 or 2,
The vehicle seat belt device according to claim 1, wherein the first housing recess is provided with a side engagement protrusion that engages with an end in a width direction of the grip portion. The vehicle seat belt device according to claim 3,
The vehicle seat belt device according to claim 1, wherein the second housing recess is provided with a lower engagement protrusion that engages with a tip of the metal fitting. In the vehicle seat belt device according to any one of claims 1 to 4,
The vehicle seat belt device according to claim 1, wherein the second housing recess is provided with an insertion protrusion into which the fitting hole of the metal fitting is inserted to restrict the vertical position of the tongue.

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