JP2002283956A - Seat device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat device for a vehicle capable of preventing the holding of a webbing of a seat belt device. SOLUTION: An extension part 23 projected to the rear side is provided on a back face of an upper end part of a seat back 2. At left and right end parts of the extension part 23, guide surfaces 24 which stretch over a position where the seat back 2 is abutted against a front end edge 72f of the webbing 72 of a non-use state first when the seat back 2 is rotated to the rear side toward a standing position and are formed into shapes displaced to the front of a vehicle toward a vehicle outside are formed. When the webbing 72 hits on the guide surfaces 24, the webbing 72 is led in a vehicle outside direction and the webbing 72 is prevented from being held between a lock mechanism 3 and a striker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device for a vehicle, and more particularly to a seat device for a rear seat of a vehicle in which a seat back is supported by a striker provided on a body side. The present invention relates to a technique for preventing webbing of a seat belt device from being pinched.

[0002]

2. Description of the Related Art FIG. 6 shows a known vehicle seat apparatus which is conventionally applied to a rear seat of a so-called van / wagon type vehicle in which a luggage compartment is provided behind a rear seat of the vehicle. I have. In this prior art, a seat back 01 is supported by a vehicle body so as to be rotatable back and forth (an arrow FR indicates the front of the vehicle in the figure) with respect to a seat cushion (not shown),
A lock mechanism 03 that engages with a striker 02 fixed to the body side is provided on a side portion of the seat back 01. Notches 04 for the striker 02 to enter are provided on the back and side surfaces of the seat back 01. In this prior art, since the lock mechanism 03 engages with the striker 02 and the rotation of the seat back 01 is restricted, it is possible to restrict the forward rotation of the seat back 01 at the time of a frontal collision of the vehicle, and In addition, it is possible to prevent the luggage in the luggage compartment from moving to the cabin. Further, the lock mechanism 03 and the striker 02 can be disengaged from each other, and the seat back 01 can be tilted forward to expand the luggage compartment.

A webbing 05 of a seat belt device for a rear seat extends vertically along a body side. That is, in a generally well-known three-point belt, a buckle is arranged near the center of a seat cushion (not shown), and a tongue that engages with the buckle is attached to an intermediate portion of the webbing 05.
Has one end wound by a winding device provided at the upper part of the body side, the other end pulled out from the winding device, passed through the upper through ring and folded back, and provided with an anchor provided at the lower part of the body side. It is supported by. Therefore, when the seat belt device is used, when the tongue is pulled to engage with the buckle, the webbing 0 below the tongue is not engaged.
5 is wound around the occupant's waist, and the webbing 05 above the tongue is pulled out from the winding device and is obliquely wrapped around the occupant's upper body.

[0004]

By the way, in a vehicle, a body side panel is often formed in a curved shape so as to be displaced toward the interior of the vehicle toward the upper side in consideration of aerodynamics and appearance. Therefore, the webbing 05 extended between the through ring and the anchor is arranged away from the body side panel. On the other hand, the seat back 01 is generally formed wider at the upper portion supporting the occupant's shoulder than at the lower portion. Therefore, when the seat back 01 is rotated from the standing position, the left and right ends of the upper end of the seat back 01 and the webbing in the non-use state have a positional relationship of overlapping in the front-rear direction.

Therefore, in the prior art, when the seat belt device is not used, the webbing 05 is hooked on a hook 06 provided on the body side as shown in the figure. With this configuration, when the seat back 01 is rotated back and forth as described above, the webbing 05 can be smoothly rotated without being caught by the seat back 01.

However, according to the prior art, when the seat belt device is not used, the webbing 05 is hooked to the hook 0.
6 may be forgotten. In this case, when the seat back 01 is erected from a state in which the seat back 01 is tilted forward, the webbing 05 is caught on the shoulder portion of the seat back 01, and is located between the lock mechanism 03 and the striker 02. There was a problem that it might be pinched. Then, the webbing 05 and the striker 0
Next, when using the seat belt device, the lock mechanism 03 of the seat back 01 must be unlocked and the seat back 01 must be tilted forward to take out the webbing 05 when using the seat belt device. There was a problem that it could not be used and the operation was troublesome.

The present invention has been made in view of such conventional problems, and has as its object to provide a vehicle seat device which can prevent webbing of a seat belt device from being pinched. .

[0008]

In order to achieve the above-mentioned object, in a vehicle seat device according to the present invention, a belt-like webbing of a seatbelt device is supported by extending a side surface of a vehicle in a vertical direction with a side surface extending toward a side of the vehicle. A seat back is supported at a position near the body side panel so as to be rotatable back and forth about a base end portion with respect to the vehicle body, and the webbing in an unused state is extended to the body side panel. A striker is provided behind the position where the
A lock mechanism is provided for engaging the striker and holding the seat back in the upright position, and releasing the engagement and allowing the seat back to fall forward from the upright position. And is formed in a shape overlapping in the front-back direction, and on the back of the seat back,
When the seat back is rotated rearward toward the upright position, the webbing is first formed so as to be displaced toward the front of the vehicle toward the outside of the vehicle so as to straddle the position in contact with the front edge of the webbing in the unused state. A guide surface for guiding the webbing in the vehicle exterior direction when the front edge of the webbing abuts.

The invention described in claim 2 is the first invention.
The vehicle seat device according to the above, at the upper end of the seat back, an extension protruding rearward from the general portion on the back of the seat back extends in the vehicle width direction, and the vehicle exterior end of the extension is A guide surface is formed.

[0010]

According to the present invention, since the seat back is formed so as to overlap the webbing in the non-use state in the front-rear direction, the seat back is turned backward from the state where the seat back is tilted forward to the standing position. When moved, the front edge of the unused webbing hits the rear surface of the seat back, but in the present invention, this webbing first hits the guide surface provided on the rear surface of the seat back, and moves outward from the vehicle along the guide surface. Be guided. Therefore, the entire webbing is guided to the outside of the seat back and is removed from the outside between the lock mechanism and the striker, so that the webbing is not sandwiched between them. Therefore, when the seat belt device is subsequently used, it is possible to eliminate the trouble of releasing the lock mechanism and removing the webbing. In addition, in the present invention, since the webbing can be prevented from being caught between the lock mechanism and the striker as described above, the hook for holding the webbing on the body side can be eliminated.

Further, in the invention according to claim 2,
The guide surface was formed at the end of the extension provided at the upper end of the seat back. Therefore, there is a skeletal member such as a pipe frame at the rear corner of the upper end of the seat back,
Even if the internal structure is difficult to form the guide surface as it is, the provision of the extension enables the guide surface to be formed, and the present invention can be easily implemented. Further, by providing the extension portion, a gap generated between the back surface of the seat back and the tonneau cover provided behind the seat back portion can be covered with the extension portion, thereby improving the appearance quality. As well as being able to see something in the luggage compartment. Therefore, it is possible to prevent the webbing from being caught at low cost and to improve the appearance quality by concealing the gap.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment) A vehicle seat device according to an embodiment corresponds to the invention described in claims 1 and 2. FIG. 1 is a perspective view showing a vehicle seat device S according to an embodiment. The vehicle seat device S is rotatable with respect to the seat cushion 1 for two or three people. And a seat back 2 whose base end is supported by the vehicle body directly or indirectly via a seat cushion 1. Note that a headrest 21 is provided above the seat back 2.

A lock mechanism 3 is provided inside both left and right end portions of the seat back 2 (only the left side is shown in the figure). The lock mechanism 3 includes a striker 5 (see FIGS. 2 to 4) that stands upright from a body side panel 4 (see FIG. 3).
Is configured to be capable of engaging and disengaging. In addition, at a portion where the lock mechanism 3 is provided, a resin finisher 6 is placed over a corner between the side surface 2s and the back surface 2b of the seat back 2, and the striker 5 enters and exits the finisher 6. Notch 6a is provided.

FIG. 2 is a side view showing the vehicle seat apparatus S. A position where the seat back 2 is indicated by a solid line is a position where the lock mechanism 3 and the striker 5 are engaged. Called position. When the lock mechanism 3 and the striker 5 are disengaged from each other, the seat back 2 can be tilted forward from the upright position as shown by the imaginary line in the figure. Back 2
It is possible to tilt down until b is substantially flush with the floor surface (not shown) of the luggage compartment R provided behind the vehicle seat device S. In addition, the striker 5 cannot restrict the seat back 2 to fall backward from the standing position.

FIG. 3 is a front view of the vehicle seat apparatus S. As shown in this figure, the seat back 2 is such that both right and left ends (only the left side in the figure) are wider in the vehicle width direction toward the top. It is formed in an inclined shape.

In this embodiment, the seat belt device 7 is mounted on the side of the vehicle seat device S. The seat belt device 7 includes a belt-shaped webbing 72 having one end wound around a winding device 71 provided inside the body side panel 4 and the other end pulled out from the winding device 71. The webbing 72 is pulled upward from the winding device 71, inserted through the through ring 73, extends downward, and has the other end connected to an anchor 74 provided at a lower portion of the body side panel 4. A tongue 75 is attached to an intermediate portion of the webbing 72.
The tongue 75 is configured to be able to engage with a buckle (not shown) provided at the center of the seat cushion 1.

As shown in FIG. 2, the portion of the webbing 72 extending between the through ring 73 and the anchor 74 is located on the side of the seat back 2 and the striker 5 in the upright position. 72s is directed to the outside of the vehicle. As shown in FIG. 3, the body side panel 4 is formed in a curved shape that is displaced upward from the center of the vehicle.
2, the portion bridged between the through ring 73 and the anchor 74 is linearly extended by the tension caused by the winding force of the winding device 71, so that the webbing is not used in the seat belt device 7. 72 is arranged in a position overlapping the shoulder 22 which is the left and right end of the upper end of the seat back 2 in the front-rear direction.

Further, in the present embodiment, an extension 23 is provided at the upper end of the back surface 2b of the seat back 2. That is, FIG. 4 is a cross-sectional view of the upper end portion of the seat back 2. As shown in FIG. 4, the seat back 2 has a metal pipe frame 2p as a frame member on the inner peripheral portion in a frame shape. A plurality of metal back frames 2q are provided on the back side of the left and right pipe frames 2p. A pad 2r made of an elastic foam material is provided on the front side of the back frame 2q, and a cloth or vinyl skin 2c is provided outside the pad 2r. At the back of the seat back 2, a general portion is provided with a skin immediately after the back frame 2q, but at the upper end, a pad 2t fills the rear side of the back frame 2q and extends rearward as shown. An extension 23 is formed. Further, guide surfaces 24 are formed at left and right ends of the extension portion 23.

That is, the left and right ends of the extension 23 are
When the seat back 2 is rotated rearward toward the standing position, it is a portion that first comes into contact with the front edge 72f of the webbing 72. Further, as shown in FIG. 5, the guide surface 24 is formed so as to straddle a position overlapping the webbing 72 in the non-use state in the front-back direction. In the present embodiment, the guide surface 24 is inclined at an angle of 25 to 30 ° with respect to the front-back direction. It is formed by an angled inclined surface.

Next, the operation of the embodiment will be described. When returning the seat back 2 to the standing position from the state in which the seat back 2 has been tilted forward, the seat back 2 moves back and forth with the webbing 72 in the non-use state while moving from the position indicated by the imaginary line to the standing position indicated by the solid line in FIG. Swap positions. At the time of this replacement, in the present embodiment, as shown in FIG. 5, the guide surface 24 provided on the extension 23 provided at the upper end of the seat back 2 hits the front edge 72 f of the webbing 72. Accordingly, the webbing 72 moves relatively to the outside of the vehicle relative to the seat back 2 along the inclination of the guide surface 24, and is released outward from between the seat back 2 and the striker 5. Thus, the webbing 72 does not get caught between the lock mechanism 3 and the striker 5.

Therefore, since the webbing 72 is not pinched as described above, the hook provided in the related art can be omitted. When the seat belt device 7 is used next time, it is necessary to release the lock of the lock mechanism 3 and to tilt the seat back 2 forward in order to remove the webbing 72 from between the lock mechanism 3 and the striker 5. Disappears.

In addition, in the embodiment, since the seat back 2 is provided with the extension 23,
When there is a tonneau cover that covers and hides the luggage compartment R behind the vehicle, the gap generated between the back surface 2b of the seat back 2 and the tonneau cover can be hidden, the appearance can be improved, and the luggage compartment R can be improved. Can be seen from outside.

The embodiment has been described with reference to the drawings, but the present invention is not limited to this. For example, in the embodiment, the guide surface 24 is formed by an inclined surface, but may be formed by an arc surface. In short, any shape may be used as long as the webbing 72 can be guided to the outside of the vehicle. Further, in the embodiment, the example in which the extension portion 23 is provided and the guide surface 24 is formed on the extension portion 23 has been described, but the guide surface 24 may be provided on the rear surface of the seat back 2 without providing the extension portion 23. It may be formed directly from 2b to the side surface 2s. Further, the position where the guide surface 24 is provided is not limited to the upper end of the seat back 2, but it is essential that the guide surface 24 be provided at a position where the seat back 2 first comes into contact with the webbing 72 when the seat back 2 is rotated. The seat back 2 may be provided at a corner between the rear surface 2b and the side surface 2s in the middle of the seat back 2.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle seat device according to an embodiment, as viewed obliquely from the front.

FIG. 2 is a side view showing the vehicle seat device of the embodiment.

FIG. 3 is a front view illustrating a main part of the vehicle seat device according to the embodiment;

FIG. 4 is a cross-sectional view illustrating a main part of the vehicle seat device according to the embodiment;

FIG. 5 is a plan view showing a main part of the vehicle seat device of the embodiment.

FIG. 6 is a perspective view showing the related art viewed from obliquely rear.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat cushion 2 Seat back 2b Back 2c Skin 2p Pipe frame 2q Back frame 2r Pad 2s Side 2t Pad 21 Headrest 22 Shoulder 23 Extension 24 Guide surface 3 Locking mechanism 4 Body side panel 5 Striker 6 Finisher 6a Notch 7 Seat belt Device 71 Winding device 72 Webbing 72f Front edge 72s Side surface 73 Through ring 74 Anchor 75 Tongue R Luggage room S Vehicle seat device

Claims (2)

[Claims] 1. A seat back having a base end portion with respect to a vehicle body at a position near a body side panel in which a belt-like webbing of a seat belt device is supported so as to extend in a vertical direction with a side surface facing a vehicle side. The body side panel is provided with a striker rearward of a position where the webbing in an unused state is extended, and the seat back is engaged with the striker. A lock mechanism is provided to hold the seat back in the upright position, and to release the meshing so that the seat back can be tilted forward from the upright position. The webbing in the non-use state is first formed on the back of the seatback when the seatback is rotated rearward toward the upright position. It is formed so as to be displaced toward the front of the vehicle toward the outside of the vehicle so as to straddle the position contacting the front edge, and a guide surface for guiding the webbing to the outside of the vehicle when the front edge of the webbing abuts is formed. Vehicle seat device. 2. An upper end portion of the seat back has an extended portion projecting rearward from a general portion on the rear surface of the seat back extending in the vehicle width direction. The vehicle seat device according to claim 1, wherein the vehicle seat device is formed.