JP5162992B2 - Seat belt storage structure - Google Patents

Description

  The present invention relates to a seatbelt for a vehicle, and more particularly to a seatbelt storage structure that is used by being pulled out from a ceiling of a passenger compartment to a passenger compartment and is rewound when not in use and stores a tongue plate in a storage portion of the ceiling.

In recent years, from the viewpoint of improving passenger safety, a three-point seat bell is also provided in the central seat such as a third seat of a wagon car. As shown in FIG. 5, the seat belt 2 for the central seat TS of the third seat T can be pulled out from the opening 10 formed in the ceiling 1 of the passenger compartment to the passenger compartment, and is installed on the side of the passenger compartment. A first tongue plate 21 provided at the front end of the seat belt 2 and slidable in the middle of the seat belt 2 is provided so as to be rewound by the retractor 5 and pulled out to the passenger compartment when in use. The tongue plate 22 is fitted and locked to first and second buckles 61 and 62 provided on the left and right sides of the central seat TS, respectively, to restrain the occupant.
When not in use, the seat belt 2 is rewound by the retractor 5, and the first and second tongue plates 21 and 22 are stored in the holding member 3A provided in the opening 10 as shown in FIG. (For example, see Patent Document 1).

FIG. 7 shows an example of a conventional storage structure at a position along the line Y-Y in FIG. 6. The seat belt 2 is attached to one side portion in the left-right direction on the synthetic resin holding member 3A covering the opening 10. A through hole 30 to be inserted is formed, and the seat belt 2 is led from the through hole 30 to the vehicle compartment through the anchor member 15 installed in the roof reinforcing portion 81 of the vehicle body.
A storage portion 31 having a shallow cross-sectional hat shape is provided at the other side end of the holding member 3 </ b> A, and left and right side walls of the storage portion 31 are respectively provided at the distal ends of the first and second tongue plates 21 and 22. Correspondingly, holding holes 32 and 33 are formed to engage and disengage them. The seat belt 2 stores the distal end portion 221 of the second tongue plate 22 by inserting it into one holding hole 33 of the storage portion 31 along the rewind direction of the seat belt 2 by the retractor 5. 21 is inserted into the other holding hole 32 of the storage portion 31 along the anti-rewinding direction (drawing direction) of the seat belt 2 and stored and held.

In this case, in the first tongue plate 21, the insertion direction of the tip end portion 211 is the anti-rewinding direction of the seat belt 2, and therefore the insertion into the holding hole 32 is easy to come off due to the rewinding force of the retractor 5.
As another conventional storage structure, there is a structure in which the first and second tongue plates are respectively stored by being inserted into the holding holes in the seat belt rewinding direction. In this case, the first and second tongue plates are stored. Is stored in two steps on the ceiling, the vertical dimension of the storage part becomes large, and it is difficult to secure the head clearance above the rear seat. Therefore, from the viewpoint of head clearance, a structure in which the first and second tongue plates 21 and 22 are housed side by side in the opposite direction to the housing portion 31 is preferable.
In Patent Document 1, when the second tongue plate is provided with a sliding prevention means and the front end portion of the second tongue plate is directed in the rewinding direction with respect to the seat belt 2 directed in the anti-rewinding direction, The relative movement between the seat belt 2 and the second tongue plate 22 is prevented. Accordingly, the first tongue plate 21 stored in the storage unit 31 in the anti-rewinding direction is prevented from being affected by the rewinding urging force of the seat belt 2.
JP 2006-290094 A

By the way, the seat belt 2 is composed of a webbing with a smooth surface. If the seat belt 2 is stored for a long time, the blocking effect by the sliding blocking means gradually loosens, and the first tongue plate 21 side There is a possibility that the urging force of rewinding gradually acts on the.
In general, the second tongue plate 22 is large and has a long tip 221, and can be stored well by inserting the tip 221 into the holding hole 33, but the first tongue plate 21 is stored in the second tongue plate 22. Since the tip portion 211 is shorter than the smaller one, the insertion into the holding hole 32 is shallow and the fitting into the storage portion 31 is not sufficient. Accordingly, there is a problem that the first tongue plate 21 falls off from the storage portion 31 due to the vibration of the vehicle and the like, and the influence of the rewinding urging force.
Therefore, the present invention provides a storage of a holding member provided on the ceiling of a passenger compartment without rattling or dropping even with a tongue plate, particularly a small tongue plate provided at the front end of the seat belt and stored along the anti-rewinding direction of the seat belt. An object of the present invention is to realize a seat belt storage structure that can be stored in a part.

The present invention provides a first seat belt provided at a front end of a seat belt that can be pulled out from an opening formed in a ceiling of a passenger compartment into a passenger compartment and is urged by a retractor installed on a side surface of the passenger compartment. A tongue plate and a second tongue plate slidably provided in the middle of the seat belt, and the first and second tongue plates are respectively provided on the left and right sides of the seat by being pulled out to the passenger compartment when in use. In the seat belt storage structure in which the two buckles are fitted and locked, and the first and second tongue plates are stored and held in the holding member provided in the opening when not in use.
The holding member is configured in a cover shape covering the opening,
The holding member is formed with a through hole for allowing the seat belt to pass through the side end portion on the seat belt rewinding side, and the first holding hole and the intermediate position on the side end opposite to the side end portion and the intermediate position, respectively. Forming a second retaining hole;
When the seat belt is not used, the first tongue plate is inserted into the first holding hole in the anti-rewinding direction of the seat belt, and the second tongue plate is inserted into the second holding hole. So that it can be inserted in the direction,
And the holding member is provided with an auxiliary member made of a synthetic resin plate and overlapped with the holding member so that the side end protrudes from the half of the peripheral edge of the opening edge of the first holding hole and expands the opening edge width. And the holding member is formed with a receiving portion that enlarges the width of the opening edge of the other half of the periphery of the opening edge of the first holding hole,
And forming a protrusion on the side end of the auxiliary member,
When the seat belt is not used, the front end portion of the first tongue plate inserted into the first holding hole is held between the projection and the receiving portion, and the first tongue plate is moved in the seat belt rewinding direction. It prevents the omission (Claim 1) .

Protrusions are provided at the side ends of the auxiliary member made of a synthetic resin plate that protrudes from the first holding hole of the holding member, and the tip portion of the first tongue plate is clamped by the receiving portion of the holding member facing this since the, deflecting the side end of the auxiliary member by insert the tip of the tongue plate, the tip portion of the first tongue plate restoring force elastically is interposed, the first tongue plate is rewound seat belt It is prevented from coming out of the holding hole by the urging force.

The side edge of the auxiliary member, thereby forming the projections forming the chevron in the insertion direction of the first tongue plate into the first holding hole, to form a slit which faces on both sides the position of the protrusion (according Item 2 ).
By providing slits on both sides of the protrusion, the periphery including the protrusion can be flexed effectively.

  An embodiment in which the present invention is applied to a seat belt 2 that restrains an occupant seated in a central seat TS of a third seat T such as a wagon car shown in FIG. 5 will be described. The seat belt 2 has the same structure as the conventional one, and the belt base end is provided in a space between the side wall trim 90 of the passenger compartment and the rear pillar 91 of the vehicle body so as to be able to be wound by the retractor 5 installed on the rear pillar 91, and the side wall from the retractor 5 is provided. The roof 90 is routed between the trim 90 and the rear pillar 91, and between the roof trim 81 extending in the vehicle width direction along the lower surface of the vehicle body roof trim 1 and the lower surface of the vehicle body roof 8. A plurality of seat belt anchors 15, 15 fixed to the reinforcement 81 with bolts are passed through the opening 10 formed in the ceiling trim 1 so as to be drawn out into the vehicle interior. The seat belt 2 is urged in the rewind direction by the retractor 5.

  The seat belt 2 is provided with a first tongue plate 21 at the front end of the belt, and a second tongue plate 22 is provided in the middle of the belt so as to be slidable along the belt. When the seat belt 2 is in use, the seat belt 2 is pulled out downward, and the first and second tongue plates 21 and 22 are detachably engaged with the first and second buckles 61 and 62 on the left and right sides of the central seat TS, respectively. Combine and restrain the crew.

The first and second tongue plates 21 and 22 are of different types, and the second tongue plate 22 is the same as the tongue plate of the seat belt for the driver's seat and the passenger seat, and can be easily operated by one-touch operation. The second buckle 62 can be engaged and disengaged. On the other hand, when the first tongue plate 21 is engaged with the first buckle 61, the engagement cannot be released unless a key or the like is used.
The first tongue plate 21 is smaller than the second tongue plate 22 in that the base end connected to the seat belt 2 and the front end protruding from the base end and fitting into the buckle 61 are smaller. is there.

  When not in use, the seat belt 2 is rewound by the retractor 5, and the first and second tongue plates 21 and 22 are stored and held in the holding member 3 installed in the opening 10 of the ceiling trim 1 as shown in FIG. To do. Hereinafter, details of the storage structure of the first and second tongue plates 21 and 22 will be described.

  As shown in FIGS. 1, 2, and 6, the holding member 3 is a synthetic resin molded product and is formed in a rectangular cover shape that is long in the left-right direction and covers the rectangular opening 10 that is long in the left-right direction of the ceiling trim 1. It is fitted to the opening 10 from below. The holding member 3 locks a plurality of locking portions 37 and 38 provided on the outer peripheral edge to the peripheral edge of the opening 10, and engages and locks a plurality of clips 39 protruding upward to the roof reinforcement 81. It is installed.

  The holding member 3 is formed with a through hole 30 through which the seat belt 2 can be inserted at the left and right side end portions. Immediately after passing through the seat belt anchor 15 provided in the roof reinforcement 81, the seat belt 2 passes through the insertion hole 3 and is pulled out to the passenger compartment side.

  At the other side end of the holding member 3 opposite to the through hole 30, a shallow square inverted container shape is formed that bulges upward in a substantially hat shape in cross section and opens on the lower side. A storage portion 31 for storing the tongue plates 21 and 22 is formed.

Of the left and right side walls 311, 312 of the storage portion 31, the front end portion 211 of the first tongue plate 21 is opposite to the seat belt 2 on the side wall 311 opposite to the through hole 30 (left side in FIG. 1). A first holding hole 32 is formed to be detachably inserted along the rewind direction. The first holding hole 32 is a horizontally long rectangular hole that is wide in the lateral direction along the longitudinal direction of the vehicle compartment ceiling and narrow in the vertical direction.
A plurality of vertical plate-like ribs standing from the back surface of the side wall 311 are provided on the opening lower edge side, which is the lower half of the opening edge of the first holding hole 32, and the upper edge of each rib is the first holding hole. A receiving portion 34 is formed so as to be substantially horizontal to the lower edge of the opening 32 and to widen the width of the lower edge of the holding hole 32 along the insertion direction.

A second holding hole 33 is formed in the side wall 312 of the storage portion 31 on the side of the through hole 30 so that the tip 221 of the second tongue plate 22 is removably inserted along the rewinding direction of the seat belt 2. It is.
A receiving portion 35 made up of a plurality of ribs in the form of a vertical plate is also provided on the opening lower edge side of the second holding hole 33. The upper edge of the receiving portion 35 is formed in an inclined shape so as to guide the tip portion 221 of the second tongue plate 22 inserted into the second holding hole 33 in the rewinding direction and obliquely upward, so that the second holding The back end of the receiving portion 35 is set higher than the opening lower edge of the hole 33.

As shown in FIGS. 1 to 4, a plate-like auxiliary member 4 made of a synthetic resin molded product is superimposed on the back surface side of the storage portion 31. The auxiliary member 4 protrudes substantially horizontally from the position corresponding to the upper edge of the opening, which is the upper half of the opening periphery of the holding hole 32, toward the first holding hole 32 side of the storage portion 31. A first side end portion 41 is formed to increase the width of the upper edge in the insertion direction of the first tongue plate 21.
In addition, the auxiliary member 4 is also formed with a second side end portion 42 that protrudes in the rewind direction of the seat belt 2 almost horizontally from the upper edge of the opening of the holding hole 33 on the second holding hole 33 side.

The first and second side end portions 41, 42 are both wider than the first and second holding holes 32, 33, and have both ends 411 wider than the holding holes 32, 32. The 411, 421, and 421 are formed in a substantially hat shape in cross section formed one step lower. These both ends 411, 411, 421, 421 serve as fixing portions to the back side of the holding member 3.
The auxiliary member 4 is arranged with its central portion 40 overlapped with the upper wall 310 of the storage portion 31, and both ends 421 of the second side end portion 42 overlapped with the bottom wall of the holding member 3, It engages with the provided engaging claw 36 a (FIG. 2), and both ends 411 and 411 of the first side end portion 41 are overlapped and welded to the bottom wall of the holding member 3. The welded structure of both ends 411 and 411 is such that the projections 36b and 36b projecting upward from the bottom wall of the holding member 3 are passed through the small holes 412 and 412 formed in the both ends 411 and 411, and the through ends of these projections 36b and 36b are heated. (FIG. 4).

  The first side end portion 41 is provided with two slits 43 and 43 extending in parallel along the insertion direction of the first tongue plate 21 at a central position corresponding to the upper edge of the first holding hole 32. It is. Both slits 43, 43 end at a position before the end of the side end 41, and the ends of both slits 43, 43 are closed.

  An intermediate portion between the slits 43, 43 protrudes downward in a substantially mountain shape in section along the insertion direction of the first tongue plate 21, and is spaced from the receiving portion 34 at the lower edge of the holding hole 32. Protrusions 45 facing each other are formed. The protrusion 45 is separated from the side end portion 41 by both slits 43, 43, and is easily bent in the vertical direction and is given elasticity. The interval between the protrusion 45 and the receiving portion 34 is slightly narrower than the thickness of the tip end portion 211 of the first tongue plate 21 and is set to an interval for press-fitting it.

  The second side end portion 42 is adjacent to the back end of the receiving portion 35 at the lower edge of the second holding hole 43 and the end portion 221 of the second tongue plate 22 at an interval at which the second side end portion 42 can be fitted. They are facing each other.

When the seat belt 2 is not in use, the seat belt 2 is rewound by the retractor 5, and the first tongue plate 21 has its tip 211 placed in the first holding hole 32 along the anti-rewinding direction of the seat belt 2. The projection 45 is inserted between the first side end 41 of the auxiliary member 4 and the first receiving portion 34 while being bent upward, and is stored in the storage portion 31.
On the other hand, the second tongue plate 22 inserts the end portion 221 into the second holding hole 33 along the rewinding direction of the seat belt 2, and ends the second side end portion 42 and the second receiving portion 35. Then, the tip 221 is sandwiched and the second tongue plate 22 is accommodated in the holding member 3.

According to the present embodiment, although the first tongue plate 21 accommodated along the anti-rewinding direction of the seat belt 2 is subjected to the rewinding force of the seat belt 2 by the retractor 5, the force in the pulling direction acts. The tip portion 211 of the first tongue plate 21 is securely held between the bent projection 45 and the receiving portion 34 by the restoring force of the projection 45, and has a high holding effect against the force in the pulling direction. Is demonstrated. In particular, even the small first tongue plate 21 is sufficiently retained and can effectively prevent falling off and rattling.
On the other hand, since the second tongue plate 22 is stored in the direction in which the seat belt 2 is rewound, the second tongue plate 22 is sufficiently stored and held without projections as in the storage structure of the first tongue plate 21, and the first tongue plate 22 is stored. Since the plate 21 is firmly stored and held, the seat belt 2 whose tip is stopped by this does not loosen and is supported by this, so that the second tongue plate 22 does not fall off or rattle.

In the present embodiment, since the left and right ends 411 and 411 of the first side end 41 of the auxiliary member 4 are fixed to the holding member 3, slits 43 and 43 are formed in parallel to the central portion of the side end 41. Protrusions 45 are provided in the middle of these, and the protrusions 45 are easily bent and have the effect of imparting elasticity.
The present invention is not limited to this, but the illustration is omitted, but the method of attaching the auxiliary member to the holding member is changed, for example, the intermediate portion of the auxiliary member is coupled and fixed to the upper wall of the holding portion of the holding member. If the left and right ends of the side end portion of the auxiliary member are not fixed to the holding member, the side end portion is easily bent, and it is not always necessary to provide a slit as in the above-described embodiment.

  Further, although not shown, the present invention may be applied to a structure in which the second tongue plate is stored along the anti-rewinding direction of the seat belt in the same manner as the first tongue plate. A protrusion is provided in the holding hole into which the plate is inserted, and the second tongue plate is sandwiched between the protrusion and a receiving portion facing the protrusion. For example, the first and second storage portions for individually storing the first and second tongue plates along the anti-rewinding direction of the seat bell are formed on the holding member, and the second tongue plate is stored. It is preferable that a second holding hole is formed in the side wall in the anti-rewinding direction of the second storage portion, and the receiving portion and the protrusion are provided on the lower edge and upper edge of the opening.

FIG. 7 is a cross-sectional view of the seat belt storage structure of the present invention at a position along line YY in FIG. 6. It is the perspective view which looked at the holding member and auxiliary member which are used for the storage structure of the said seatbelt from diagonally upward. The principal part of the seatbelt accommodation structure is shown, and is a principal part perspective view of the auxiliary member. It is sectional drawing which follows the IV-IV line of FIG. It is the schematic which shows the seatbelt of the vehicle to which this invention is applied. It is the perspective view which looked at the accommodating part of the seatbelt to which this invention is applied from diagonally downward. FIG. 2 is a cross-sectional view illustrating a conventional seat belt storage structure corresponding to FIG. 1.

Explanation of symbols

1 Ceiling trim (ceiling)
DESCRIPTION OF SYMBOLS 10 Opening part 2 Seat belt 21 1st tongue plate 211 Front-end | tip part 22 2nd tongue plate 3 Holding member 30 Through-hole 32 1st holding hole 33 2nd holding hole 34 Receiving part 4 Auxiliary member 41 Side edge part ( (Side edge)
43 Slit 45 Protrusion 5 Retractor 61 First buckle 62 Second buckle

Claims (2)

A first tongue plate provided at a front end of a seat belt which can be pulled out from an opening formed in a ceiling of the passenger compartment into the passenger compartment and urged by a retractor installed on a side surface of the passenger compartment; A second tongue plate slidably provided in the middle of the seat belt, and pulled out to the passenger compartment when in use, and the first and second tongue plates are respectively provided on the left and right sides of the seat. In a seat belt storage structure that is fitted and locked to a buckle, and stores and holds the first and second tongue plates in a holding member provided in the opening when not in use.
The holding member is configured in a cover shape covering the opening,
The holding member is formed with a through hole for allowing the seat belt to pass through the side end portion on the seat belt rewinding side, and the first holding hole and the intermediate position on the side end opposite to the side end portion and the intermediate position, respectively. Forming a second retaining hole;
When the seat belt is not used, the first tongue plate is inserted into the first holding hole in the anti-rewinding direction of the seat belt, and the second tongue plate is inserted into the second holding hole. So that it can be inserted in the direction,
The holding member is made of a synthetic resin plate, and is provided with an auxiliary member that is overlapped with the holding member and whose side ends protrude from the half of the peripheral edge of the opening edge of the first holding hole to increase the opening edge width. And the holding member is formed with a receiving part for expanding the opening edge width of the other half of the peripheral edge of the opening edge of the first holding hole,
And forming a protrusion on the side end of the auxiliary member,
When the seat belt is not used, the front end portion of the first tongue plate inserted into the first holding hole is held between the projection and the receiving portion, and the first tongue plate is moved in the seat belt rewinding direction. A seat belt storage structure that is designed to prevent slipping out. At the side end of the auxiliary member, a protrusion having a mountain shape is formed in the insertion direction of the first tongue plate into the first holding hole, and slits facing each other are formed on both side positions of the protrusion. The seat belt storage structure according to claim 1, wherein elasticity is imparted to the seat belt.

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