JP4296941B2 - Mounting structure for vehicle seat belt - Google Patents

Description

  The present invention relates to a mounting structure for a vehicle seat belt, and particularly to a mounting structure for a vehicle seat belt provided with a roll bar.

Conventionally, in a vehicle, a seat belt is provided in order to ensure the safety of an occupant. However, in an open car, there is a problem that it is difficult to secure an installation location of the seat belt retractor.
In other words, in the case of an open car, an open car roof member (a retractable hood or a hard roof) is provided, and a link mechanism for storing and deploying the roof member is provided on the side of the seat. Therefore, it is difficult to lay out the seat belt anchor on the side of the seat.
Further, since a storage portion for storing the roof member is provided on the rear side of the seat, it is difficult to lay out on the rear side of the seat.
Therefore, Patent Document 1 below discloses that a seat belt retractor is disposed on a roll bar disposed on the rear side of the seat. Specifically, a crossbar is formed with respect to a roll bar member formed of a cross bar extending in the vehicle width direction and a roll bar formed in a substantially inverted U shape disposed above the cross bar. A structure is disclosed in which a seat belt retractor is disposed above and a belt anchor is attached to the upper side of the roll bar.
According to Patent Document 1 as described above, the seat belt retractor can be disposed using the roll bar.

JP-A-4-342672

However, according to the above-mentioned Patent Document 1, there is a possibility that a storage space for storing a roof member (a retractable hood or a hard roof) of an open car cannot be secured sufficiently.
In other words, the seat belt retractor is relatively large. Particularly, in recent years, a structure having a pretensioner function for winding the seat belt when a vehicle collision or a collision is predicted is becoming common. When the seat belt retractor has the tensioner function, the seat belt retractor is further increased in size.
Therefore, as shown in Patent Document 1, in order to dispose the seat belt retractor on the crossbar, it is necessary to increase the thickness of the crossbar in the vehicle front-rear direction, and accordingly, a storage space for storing the roof member. Becomes narrower.
Although it is conceivable to expand the storage space to the rear side of the vehicle, it is difficult to ensure the limited length of the vehicle.

  The present invention has been made in consideration of the above-described problems. The object of the present invention is to allow the seat belt retractor to be disposed close to the seat while maintaining the storage space for the roof member within the limited length of the vehicle. An object of the present invention is to provide a mounting structure for a vehicle seat belt.

In order to achieve the above object, the present invention provides the following solution as a solution. In other words, in the first configuration of the present invention, a kick-up comprising a floor portion that is disposed on the vehicle lower side and is composed of a horizontal surface and an inclined surface that is inclined from the vehicle rear end side toward the vehicle upper rear side of the floor portion. And a seat is attached to the front floor portion of the kick-up portion on the vehicle interior side, and the vehicle rear side floor of the kick-up portion is extended in the vehicle width direction to protect the occupant A roof member attached to a roll bar, the roof member being selectable between an unfolded state that covers a compartment portion to which the seat is attached and a retracted state that is not covered;
A link mechanism provided on the side of the roll bar for moving the roof member to any one of the selectable states, and formed adjacent to the rear of the roll bar so that the roof member is in a retracted state. And a storage portion in which the roof member is stored, and the seat belt retractor of the seat belt for the seat is configured to be disposed on the vehicle exterior side of the kick-up portion.

  According to the first configuration of the present invention, since the seat belt retractor is disposed outside the passenger compartment behind the kick-up portion, the seat belt retractor is disposed using the space behind the kick-up portion. Thus, the seat belt retractor can be disposed close to the seat while maintaining the storage space for the roof member within the limited length of the vehicle.

  In the second configuration of the present invention, a seat belt anchor is attached to the roll bar, and the roll bar to which the belt anchor is attached is covered with a trim, and the seat includes the seat. A belt extending from the belt retractor to the belt anchor is routed.

  According to the second configuration of the present invention, the seat belt anchor is attached to the roll bar, and the belt extending from the seat belt retractor to the belt anchor is routed in the trim that covers the roll bar to which the belt anchor is attached. Therefore, the seat belt can be covered with the trim, and the appearance can be improved.

  In the third configuration of the present invention, a frame member extending in the vehicle front-rear direction is provided above the position where the seat belt retractor is attached, and from the position where the seat belt retractor is attached. Also, a bracket member for connecting the outer side surface of the kick-up portion on the vehicle lower side to the frame member is provided.

  According to the third configuration of the present invention, the vehicle exterior side surface of the kick-up portion on the vehicle lower side than the position where the seat belt retractor is mounted, and the vehicle upper side than the position where the seat belt retractor is mounted. Since the bracket member for connecting the frame member is provided, the bracket member is disposed on the lower side of the seat belt retractor, and the seat belt retractor can be protected against hopping from the lower surface side of the vehicle. .

  According to the fourth configuration of the present invention, both ends in the vehicle width direction of the frame member and the bracket member are connected by the panel member, and a closed space is formed by the kick-up portion, the frame member, the bracket member, and the panel member. The seat belt retractor is formed in the closed space.

According to the fourth configuration of the present invention, both ends in the vehicle width direction of the frame member and the bracket member are connected by the panel member, respectively, and a closed space is formed by the kick-up portion, the frame member, the bracket member, and the panel member, Since the seat belt retractor is disposed in the closed space, a bracket member is disposed on the lower side of the seat belt retractor, and the seat belt retractor is protected against a hopping from the lower surface side of the vehicle. Can do.
In addition, since the seat belt retractor is disposed in the closed space, it is possible to suppress the sound outside the vehicle from being transmitted from the mounting position of the seat belt retractor to the vehicle interior.

  According to the fifth configuration of the present invention, the kick-up portion is formed with a mounting hole that communicates the interior side and the exterior side of the kick-up portion, and the seat belt retractor includes the attachment It is attached to the vehicle interior of the kick-up through a retractor bracket that extends in the vehicle vertical direction across the mounting hole so as to protrude from the hole to the vehicle exterior side of the kick-up portion, and from the mounting hole. A cover member that protrudes outward from the passenger compartment of the kick-up part and covers the outer passenger compartment side of the seat belt retractor is attached to the interior of the kick-up passenger compartment. The retractor bracket and the cover member are fastened together with a fastening member, while the lower side of the retractor bracket and the cover member is more vehicle than the cover member. In extending portion that extends up to rectangular side only retractor bracket is fixed by a fastening member, the lower side of the cover member are configured to be pressed and fixed by the retractor bracket.

According to the fifth configuration of the present invention, the retractor bracket and the cover member are attached to the upper side of the retractor bracket and the cover member, since the retractor bracket and the cover member are fastened together via the fastening member. It can be fixed by a common fastening member, and the number of parts can be reduced.
In addition, the lower side of the cover member is fixed by the fastening member only at the extending portion extending to the vehicle lower side than the cover member, and the lower side of the cover member is pressed and fixed by the retractor bracket. On the side, since the cover member is not fixed by the fastening member, it is possible to suppress the deterioration of the sealing performance accompanying the fastening member insertion.

  According to the present invention, the seat belt retractor can be disposed close to the seat while maintaining the storage space for the roof member within the limited length of the vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view of a vehicle according to the present embodiment. Reference numeral 1 denotes an open car type vehicle, and a roof member 3 is disposed on the vehicle rear side of the front pillar 2.
The roof member 3 includes a steel plate roof portion 3a, a steel plate pillar portion 3b, and a rear glass portion 3c. The roof portion 3a, the pillar portion 3b, and the rear glass portion 3c are respectively linked mechanisms 4 described later. It connects with the vehicle body of the roll bar member 5 side mentioned later through this.
As shown by a solid line in FIG. 1, the roof member 3 is in an unfolded state that covers the interior 6 of the vehicle 1, and as shown by a two-dot chain line in FIG. It is configured to be selectable between a storage state stored in a storage portion 8 formed behind the roll bar member 5 disposed.

Next, a specific structure of the roll bar member 5 will be described with reference to FIG. FIG. 2 is a perspective view of the roll bar member 5. In FIG. 2, the trim 10 that covers the roll bar member 5 is not shown.
In FIG. 2, the roll bar member 5 is disposed on the rear side of the seat 7 in the vehicle width direction and on the rear side of the headrest 7 a of each seat 7, and is connected to the upper side of the side frame 9. The two substantially reverse U-shaped roll bar portions 5a and 5b are disposed at both ends of the side frame 9, one end is connected to the lower side of the side frame 9, and the other end is a floor (not shown). It is comprised from the support parts 5c and 5d connected to.
The roll bar member 5 configured as described above is entirely covered with a trim 10 as shown in FIG.

Next, a specific structure of the link mechanism 4 of the roof member 3 will be described with reference to FIGS.
4 is a side view of the link mechanism 4 of the roof member 3 as viewed from the side of the vehicle, and FIG. 5 is a plan view of the link mechanism 4 of the roof member as viewed from above the vehicle. It is the top view which looked at the state which the vehicle front side edge part of the roof part 3a moved to the vehicle rear side rather than the roll-bar part 5a in the stage in the middle of changing to a retracted state from the upper side.

One end of the link mechanism 4 is pivotally supported by the vehicle body (not shown in FIG. 4) on the side of the roll bar member 5, the middle is pivotally supported by the pillar portion 3b, and the other end is pivotally supported by the roof member 3a. The first link member 4a formed in a substantially inverted letter shape, one end of which is pivotally supported by the vehicle body (not shown in FIG. 4) on the side of the roll bar member 5, and the other end is the first link member. A second link member 4b formed in a substantially inverted letter shape that is supported in the vicinity of a pivot support position of the roof member 3a of 4a, one end is pivotally supported on the other end side of the first link member 4a, and the other A third link member 4c whose end is pivotally supported on the other end side of the second link member 4b, one end is pivotally supported on the pillar portion 3b via the first link member 4a, and the other end is on the rear glass portion 3c. A fourth link member 4d that is pivotally supported and formed in a substantially rectangular shape, and one end of which is the first phosphorus The fourth link member 4d is pivotally supported by the pillar portion 3b in the vicinity of the pivot support position via the member 4a, and the other end is pivotally supported by the rear glass portion 3c in the vicinity of the pivot support position of the fourth link member 4d. It is comprised from the 5th link member 4e formed in the character shape, and the motor unit M which drives the 1st link member 4a.
Of these link members, the first to third link members 4a, 4b, 4c constitute one four-bar link mechanism, and the first link member 4a, fourth, fifth link members 4d, 4e, Constitutes another four-bar linkage mechanism.
Accordingly, when the motor M is driven and the first link member 4a is pivoted in the direction indicated by the arrow A in the drawing with the one end side pivotally supported by the vehicle body as a fulcrum, the pillar portion 3b rotates in the same manner. The roof member 3a once moves to the rear side from the pillar portion 3b, and then rotates similarly on the rear side of the pillar portion 3b.
At this time, the rear glass portion 3c is also rotated away from the pillar portion 3b by the fourth and fifth link members 4d and 4e, and is rotated in the same manner as the roof portion 3a and pillar portion 3b, and the roof member 3 is retracted as shown in FIG. It is stored in the unit 8.

Next, the mounting structure of the seatbelt retractor 11 will be described with reference to FIGS.
6 is a side view of one of the seats as viewed from the side of the vehicle, FIG. 7 is an enlarged sectional view of the vehicle body structure on the rear side of the kick-up portion, and FIG. 8 is a view showing the seat belt retractor attached with one of the seats 7 removed. FIG. 9 is a front view of the vehicle body structure behind the kick-up portion as seen from the obliquely rear side of the vehicle, and FIG. 10 is a front view of one seat as seen from the front side of the vehicle.

In FIG. 6, the passenger compartment 6 includes a floor portion 12 having at least a substantially horizontal plane, and a kick-up portion 13 that inclines from the vehicle rear side end of the floor portion 12 toward the vehicle rear upper side.
A seat cushion 7b of the seat 7 is disposed on the floor portion 12 in front of the kick-up portion 13, and is substantially along the front of the kick-up portion 13 inside the vehicle compartment 6 from the vehicle rear side end portion of the seat cushion 7b. A seat back 7c for the seat 7 standing in the passenger compartment 6 is disposed.
Further, at the rear of the kick-up portion 13, a rear frame 14 extending in the vehicle front-rear direction, and a cross member extending in the vehicle width direction on the front side of the rear frame 14 and having a substantially L-shaped cross section. 15 are arranged.
The lower ends of the support portions 5c and 5d of the roll bar member 5 are connected to the upper side surface of the rear frame 14, respectively.
A seat belt retractor 16 is attached to the lower side of the rear frame 14 so as to protrude outward from the kick-up portion 13 and a cover member 17 covering the rear side of the retractor 16 is provided. .

Next, the details of the mounting structure of the seat belt retractor 16 will be described. As shown in FIG. 7, the kick-up portion 13 is formed with a mounting hole 13a and projects outward from the mounting hole 13a. A resin-made cover member 17 having a substantially U-shaped cross section is set, and as shown in FIG. 8, a retractor formed in a substantially T-shape extending in the vehicle vertical direction across the attachment hole 13a. The seat belt retractor 16 is attached to the kick-up portion 13 through the bracket 18 so as to be disposed in the cover member 17.
Specifically, as shown in FIG. 8, the upper portion of the retractor bracket 18 formed in a substantially T shape has two locking portions 17 a provided on the upper interior side of the cover member 17, The retractor bracket 18 and the cover member 17 are fastened and fastened together to the kick-up portion 13 via the fastening members B and B, respectively, at two positions on both ends of the retractor bracket 18. In addition, the retractor bracket 18 has only the retractor bracket 18 below the retractor bracket 18 in a state in which the cover member 17 is pressed against the kick-up portion 13 in the extended portion 18a extending from the lower end of the cover member 17 to the vehicle lower side. Is fixed to the extended portion 18a.
In FIG. 8, reference numeral 19 denotes a belt.

Further, as shown in FIG. 9, bracket members 20 as vehicle body reinforcing members formed in a substantially arc shape that connect the lower side of the cover member 17 to the rear end side of the rear frame 14 are respectively near the both ends in the vehicle width direction. Furthermore, a panel member 21 that connects the rear frame 14 and both ends of the bracket member 20 in the vehicle width direction is provided, and the kick-up portion 13, the rear frame 14, the bracket member 20, The panel member 21 is configured to form a closed space.
Note that the front panel member 21 in FIG. 9 is not shown, and only the rear side in the figure is illustrated.
Therefore, the cover member 17 is disposed in a space closed by the kick-up portion 13, the rear frame 14, the bracket member 20, and the panel member 21.

  The belt 19 extends from the seat belt retractor 16 and is routed in the trim 10 to a seat belt anchor 22 formed on the side of the roll bar portion 5a of the roll bar member 5 as shown in FIG. .

  As described above, according to the present embodiment, the seat belt retractor 16 is disposed on the vehicle exterior side behind the kick-up portion 13. Therefore, the seat belt retractor 16 is utilized using the space behind the kick-up portion 13. The seat belt retractor 16 can be disposed close to the seat 7 while maintaining the storage space for the roof member 3 within the limited total length of the vehicle.

Further, the vehicle interior side surface of the kick-up portion 13 on the vehicle lower side than the position where the seat belt retractor 16 is attached is connected to the rear frame 14 disposed on the vehicle upper side than the position where the seat belt retractor 16 is attached. Since the bracket member 20 is provided, the bracket member 20 is disposed on the lower side of the seat belt retractor 16, and the seat belt retractor 16 can be protected against hopping from the lower surface side of the vehicle.
Further, both ends in the vehicle width direction of the rear frame 14 and the bracket member 20 are connected by the panel member 21, and a closed space is formed by the kick-up portion 13, the rear frame 14, the bracket member 20, and the panel member 21, and the closed Since the seat belt retractor 16 is disposed in the space, the seat belt retractor 16 is disposed in the closed space, and the outside sound is transmitted from the mounting position (the mounting hole 13a) of the seat belt retractor 16 to the vehicle interior. Can be suppressed.

Further, the retractor bracket 18 and the cover member 17 are attached to the upper side of the retractor bracket 18 and the cover member 17 because the retractor bracket 18 and the cover member 17 are fastened together by fastening members B and B at two locations. 17 can be fixed by a common fastening member, and the number of parts can be reduced.
Further, only the retractor bracket is fixed by the fastening member B at the extended portion 18a extending from the cover member 17 to the vehicle lower side, and the lower side of the cover member 17 is pressed and fixed by the retractor bracket 18. Therefore, since the cover member 17 is not fixed by the fastening member B on the lower side, it is possible to suppress deterioration of the sealing performance accompanying the insertion of the fastening member B.

  Further, a seat belt anchor 22 is attached to the side of the roll bar portion 5a of the roll bar member 5, and the seat belt retractor 16 is connected to the belt anchor 22 in the trim 10 covering the roll bar member 5 to which the belt anchor 22 is attached. Since the extending belt 19 is routed, the belt 19 can be covered with the trim 10, and the appearance can be improved.

  In addition, in this embodiment, although the example applied to the double mountain type by which the substantially reverse U-shaped roll bar part 5a, 5b is each arrange | positioned behind the headrest 7a of each sheet | seat 7 as the roll bar member 5, In addition, you may make it apply to the type formed in one substantially reverse U shape over a vehicle width direction.

  Further, in the present embodiment, an example of a so-called hard roof made of a steel plate is shown as the roof member 3, but the roof member 3 may be applied to a so-called hood made of cloth.

The vehicle side view which concerns on embodiment of this invention. The perspective view of the roll-bar member which concerns on embodiment of this invention. The front view which looked at the state by which the trim was attached to the roll-bar member which concerns on embodiment of this invention from the vehicle front side. The side view which looked at the link mechanism of the roof member concerning the embodiment of the present invention from the vehicles side. The top view which looked at the link mechanism of the roof member concerning the embodiment of the present invention from the vehicles upper part side. The side view which made one section which looked at one seat concerning the embodiment of the present invention from the vehicle side the section. The vehicle body structure expanded sectional view of the kick-up part back side which concerns on embodiment of this invention. The front view which looked at the attachment state of the seatbelt retractor in the state which removed the seat which concerns on embodiment of this invention from the vehicle front. The perspective view which looked at the vehicle body structure behind the kick-up portion according to the embodiment of the present invention from the obliquely rear side of the vehicle. The front view which looked at one seat concerning the embodiment of the present invention from the vehicles front side.

Explanation of symbols

1: Vehicle 3: Roof member 4: Link mechanism 5: Roll bar member (roll bar)
6: Cab 7: Seat 8: Storage
10: Trim 12: Floor 13: Kick-up portion 13a: Mounting hole 14: Rear frame (frame member)
16: Seat belt retractor 17: Cover member 18: Retractor bracket 18a: Extension portion 19: Belt 20: Bracket member 21: Panel member B: Fastening member

Claims (5)

A floor portion that is disposed on the vehicle lower side and includes a horizontal surface, and a kick-up portion that includes an inclined surface that is inclined from the vehicle rear end side of the floor portion toward the vehicle upper rear side;
A seat is attached to the floor portion in front of the vehicle interior side of the kick-up portion, and a roll bar that extends in the vehicle width direction and protects the occupant is attached to the floor on the vehicle rear side of the kick-up portion. Open car,
A roof member that can be selected between an unfolded state that covers a compartment portion to which the seat is attached and a retracted state that is not covered;
A link mechanism provided on the side of the roll bar for moving the roof member to any of the selectable states;
A storage section that is formed adjacent to the rear of the roll bar and stores the roof member when the roof member is in a storage state;
A seatbelt mounting structure for a vehicle, wherein a seatbelt retractor of the seatbelt for the seat is disposed on the vehicle exterior side of the kick-up portion. A seat belt anchor is attached to the roll bar, and the roll bar to which the belt anchor is attached is covered with a trim,
2. The vehicle seat belt mounting structure according to claim 1, wherein a belt extending from the seat belt retractor to the belt anchor is routed in the trim. A frame member extending in the vehicle front-rear direction is provided on the vehicle upper side from the position where the seat belt retractor is attached,
The bracket member which connects the vehicle body outer side surface of the said kick-up part in the vehicle lower side rather than the position where the said seatbelt retractor is attached, and the said frame member is provided. Mounting structure for vehicle seat belts.   Both ends in the vehicle width direction of the frame member and the bracket member are connected by panel members, and a closed space is formed by the kick-up portion, the frame member, the bracket member, and the panel member, and the seat belt retractor is formed in the closed space. The vehicle seat belt mounting structure according to claim 3, wherein the vehicle seat belt mounting structure is provided. The kick-up portion is formed with an attachment hole that communicates the interior side and the exterior side of the kick-up portion,
The seat belt retractor is formed on the vehicle interior side of the kick-up through a retractor bracket that extends in the vehicle vertical direction across the mounting hole so as to protrude from the mounting hole to the vehicle exterior side of the kick-up portion. As installed,
A cover member protruding from the mounting hole to the vehicle exterior side of the kick-up portion and covering the vehicle exterior side of the seat belt retractor is attached to the vehicle interior direction of the kick-up,
When the retractor bracket and the cover member are attached, the upper side of the retractor bracket and the cover member are fastened together via a fastening member, while the lower side extends to the vehicle lower side than the cover member. 5. The vehicle seat according to claim 1, wherein only the retractor bracket is fixed by a fastening member in the extending portion, and the lower side of the cover member is pressed and fixed by the retractor bracket. 6. Belt mounting structure.

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