JPH0492744A - Passenger constraining device for rear seat for vehicle - Google Patents

Abstract

PURPOSE:To position the center of a seat belt means in the center of a passenger and to improve residential comfortableness by varying the position of the buckle part of the seat belt means for seats on both sides in the direction of the width of a car, and variably locating the position of an upper anchor part. CONSTITUTION:When belts 12 and 13 are located in a double-seat position, when three persons are seated at a rear seat 1, the belt 12 for seats on both sides and the belt 13 for a central seat are moved leftward by means of a buckle moving device 11. Namely, a sprocket 22 is rotated through a reduction gear 21 with the aid of a motor 20, and a slider 16 is moved leftward over a guide rail 19 through a ball 18. A spindle is rotated through running of a motor for an upper anchor moving device 35 so that an upper anchor 8 is situated in a below position, a slider is moved downward along a guide, and the upper anchor 8 is located in a below position. A tongue inserted in the intermediate part of a seat belt 6 is locked to buckles 9 and 10 of the belts 12 and 13 to constrain passengers.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an occupant restraint device for a vehicle rear seat.

(Prior Art) Conventionally, occupant restraint devices for vehicle rear seats, for example, 3
The seat belt device for the passenger seat is constructed as follows. That is, a rear seat for a three-person vehicle has a center seat and left and right seats, and each of the center seat and left and right seats is provided with a seat belt. The seat belt for the center seat is a so-called two-point belt, with an anchor part and a buckle part on the left and right sides, and the seat belts for the left and right seats are so-called three-point belts, each having an upper anchor, a lower anchor, and a buckle part. (For example, Japanese Patent Application Laid-Open No. 62-244739
(see publication).

(Invention or problem to be solved) Three passengers can sit on the center seat and on the left and right seats. For this reason, the left and right seat belts are attached so that when three occupants are seated, their centers are located at the center of the occupants.

Is the rear seat capable of seating three people as mentioned above?
Actually, it is rare for a passenger to sit in the middle seat.
Most of the time people sit there.

Therefore, a vehicle seat is designed assuming that two people sit on the left and right seats.

Therefore, it is possible to seat three people, but if two people sit on the seat, wearing the seat belts for the left and right seats poses a problem in terms of comfort.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and it is an object of the present invention to provide an occupant restraint device for a rear seat of a vehicle that improves comfort when the occupant is seated on either side of the vehicle.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes seat belt means for the center seat and seat belt means for the left and right seats,
In a vehicle rear seat occupant restraint device in which the seat belt means for the left and right seats is supported by a lower anchor part, an upper anchor part, and a buckle part provided on the inner side in the vehicle width direction, respectively, The vehicle is characterized in that the position of the buckle portion of the seat belt means for the left and right seats is changeable in the vehicle width direction, and the position of the upper anchor portion is changeable.

(Function) In the present invention configured as described above, the position of the buckle portion of the seat belt means for the left and right seats is provided so as to be changeable in the vehicle width direction, and the position of the above-mentioned upper anchor portion is provided so as to be changeable. Even when the occupant is seated only on the left and right sides, the center of the seat belt means is located at the center of the occupant, improving comfort.

(Embodiment) An embodiment of the vehicle rear seat occupant restraint device of the present invention will be described below with reference to FIGS. 1 to 10.

FIG. 1 is a schematic diagram showing the entire vehicle. In FIG. 1, there is shown a rear seat 1, and this rear seat 1 is composed of a seat cushion 2 and a seat back 3. This rear seat I can seat three people, and is equipped with seats 4 on the left and right sides and a center seat 5.

6 is a seat belt, and this seat belt 6 is supported at three points by a lower anchor 7, an upper anchor 8, and a buckle 9. 10 is a buckle for the middle seat. The base portions of these buckles 9 and IO are respectively attached to the buckle moving device 1. In addition, the upper anchor 8 is
Attached to the sea lion locomotor.

2 and 3 are a front view and a plan view of the buckle moving device 11. FIG. 4 is a sectional view taken along the line A--A in FIG. 3, and FIG. 5 is a partial plan view of parts of the buckle moving device 11. In these drawings, 12 is a belt for the left and right seats, and a buckle 9 is connected to one end of this belt 12, while 13 is a belt for the center seat.
A buckle 10 is connected to one end of 3. These belts 12.13 each have a buckle holder 14.
15, and these buckle holders 14.15 are fixed to the slider 16 as shown in FIG. The slider 16 extends in the direction of an arrow 17 indicating the width direction of the vehicle, and balls 18 are inserted into the slider 16 in a row. This ball 18 is fixed to the slider 16 by caulking the slider 16 as shown in FIG. The slider 16 and ball 18 integrated in this way
is movably inserted into the guide rail 19. 20
is a motor, and a sprocket 22 is attached to this motor 20 via a reduction gear 21. A part of the guide rail 19 and the slider 16 are cut out, and the sprocket 22 and the ball 18 are engaged in this cutout part.

This buckle moving device 11 is attached to a floor panel 23.

FIG. 6 is an enlarged view showing the upper anchor 8 of the left and right seat belts 6. 7 is a cross-sectional view taken along line B-B in FIG. 6, and FIGS. 8 and 9 are cross-sectional views taken along line C-C and line D-D in FIG. 7, respectively. FIG. 10 is an explanatory diagram for explaining the operation.

In these drawings, 30 is a vehicle body outer panel, and a vehicle body inner panel 31 is provided inside this vehicle body outer panel 30. Further, a pillar trim 32 is provided inside the vehicle body inner panel 31. This pillar trim 32 has an opening in which the upper anchor 8 is arranged. This upper anchor 8 is composed of a holder 33 and a belt guide 34.

This upper anchor 8 is fixed to an upper anchor moving device 35 that moves this upper anchor 8 up and down. This upper anchor moving device 35 is provided between the vehicle body outer panel 30 and the pillar trim 32, and is attached to the vehicle body outer panel 30 by a reinforcing plate 36.

The upper anchor moving device 35 is configured as follows. Reference numeral 37 denotes a slider, one end of which is fixed to the holder 33, and the other end is screwed into a spindle 38 having a thread and extending in the vertical direction. Also slider 3
A guide 39 is arranged along the side of 7. The lower end of the spindle 38 is directly connected to the motor 40. 41 is a decorative cover attached to the slider 37.

Next, the operation of the above embodiment will be explained. Now belt 12.1
3 is in the two-seater position. At this time, when three people are seated on the rear seat 1, the buckle moving device 11 moves the belts 12 for the left and right seats and the belt 13 for the center seat to the left of the arrow 17 shown in FIG. Specifically, the rotation of the motor 20 causes the sprocket 22 to rotate via the reducer 21.
The rotation is transmitted to the ball 18, and the ball 18 and slider 16 move on the guide rail 19 to the left of the arrow 17. As a result, the integrally formed slider 16, buckle holder 14.15 and belt 12.13 move,
At the same time, the buckles 12.13 connected to these belts 12.13 move.

Next, when two people are seated on the rear seat 1 in this state, the buckle moving device 11 similarly moves the belt 1 for the left and right seats.
2 and the belt 13 for the center seat are moved to the right of the arrow 17.

Next, the movement of the upper anchor 8 in response to the movement of the belt 12 and buckle 9 for the left and right seats in the vehicle width direction will be explained. When three people are seated on the marina seat 1, the upper anchor moving device 35 moves the upper anchor 8 downward so that it is positioned below. Specifically, the rotation of the motor 40 causes the spindle 38 to rotate, and the rotation of the spindle 38 causes the slider 37 to move downward along the guide 39. As a result, the upper anchor 8 fixed to the slider 37 is positioned below.

Next, when two people are seated on the rear seat 1 in this state, the upper anchor 8 is similarly moved upward by the upper anchor moving device 35.

When three people are seated on the rear seat 1 in this way, the belts 12 for the left and right seats and the belt 13 for the center seat are moved outward in the width direction of the vehicle, and the upper anchor 8 is positioned downward.
When two people are seated, the belts 12 and 13 are moved toward the center in the vehicle width direction, and the upper anchor 8 is positioned downward. As a result, as shown in FIG. 10, even when the rear seat 1 is doubled up, the center of the seatbelt 6 is located at the center of the occupant, so the occupant is optimally supported at three points by the seatbelt 6. , livability improves.

Next, other embodiments of the present invention will be described with reference to FIGS. 11 and 16. In this embodiment, the upper anchor 8 is moved in the front and back direction. FIG. 11 is an enlarged view showing the upper anchor 8, FIG. 12 is a front view of the upper anchor moving device, FIG. 13 is a sectional view taken along line E-E, and FIGS. FIG. 16 is an explanatory view for explaining the operation.

In these drawings, 30 is a vehicle body outer panel, and a vehicle body inner panel 31 is provided inside this vehicle body outer panel 30. Further, a pillar trim 32 is provided inside the vehicle body inch panel 31. This pillar trim 32 has an opening in which the upper anchor 8 is arranged. This upper anchor 8 is composed of a holder 33 and a belt guide 34.

This upper anchor 8 is fixed to an upper anchor moving device 50 that moves this upper anchor 8 back and forth. This upper anchor moving device 50 is provided between the vehicle body outer panel 30 and the pillar trim 32, and is attached to the vehicle body outer panel 30 by a reinforcing plate 36.

The upper anchor moving device 50 is configured as follows. 51 is a slider; one end of the slider 51 is fixed to the holder 33, the other end is threaded with a spindle 52 that has a ridge and extends in the front-rear direction, and a guide 53 that extends in the front-rear direction is inserted. . One end of the spindle 52 is supported by a bearing 54, and the other end is supported by a gear box 55.
It is connected to the motor 56 via. 41 is slider 3
This is a decorative cover attached to 7.

Next, when two people are seated on the rear seat 1 in this state, the buckle moving device 11 similarly moves the left and right Shimotsuki belts 1
2 and the belt 13 for the center seat are moved to the right of the arrow 17.

Next, the operation of this embodiment will be explained. In this embodiment as well, the movement of the left and right Shimotsuki belts 12 and buckles 9 in the vehicle width direction is performed in the same manner. When three people are seated on the marina seat 1, the upper anchor moving device 50 moves the upper anchor 8 forward so that it is located at the front. Specifically, the rotation of the motor 56 causes the spindle 52 to rotate via the gear box 55, and the rotation of the spindle 52 causes the slider 51 to move forward along the guide 53. As a result, the upper anchor 8 fixed to this spindle 52 is located at the front.

Next, when two people are seated on the rear seat 1 in this state, the upper anchor 8 is similarly moved rearward by the anchor moving device 50.

When three people are seated on the rear seat 1 in this way, the left and right Shimotsuki belts 12 and the center seat belt 13 are moved outward in the width direction of the vehicle, and the upper anchor 8 is positioned forward.
When carrying two people, the belts 12 and 13 are moved toward the center in the width direction of the vehicle, and the upper anchor 8 is positioned at the rear. As a result, as shown in FIG. 16, even when two people are seated on the rear seat 1, they are positioned at the center of the seat belt 6 or at the center of the occupant, so they are optimally supported at three points by the occupant or the seat belt 6. , livability improves.

(Effects of the Invention) As explained above, according to the present invention, even when an occupant sits on only the left and right seats of the rear seat, the center of the seat held is located at the center of the occupant, so that the occupant can optimally use the seatbelt to maintain three points. The support improves livability.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram showing an embodiment of the vehicle rear seat occupant restraint device of the present invention, FIGS. 2 and 3 are a front view and a plan view showing the buckle moving device of FIG. 1, and FIG. 3 is a sectional view taken along the line A-A in FIG. 3, FIG. 5 is a partial plan view showing parts of the buckle moving device of FIG. 1, and FIG. 7 is a sectional view taken along line B-B in FIG. 6, and FIGS. 8 and 9 are respectively C in FIG. 7.
- A sectional view along the G line and a sectional view along the D line, No. 10
The figure is an explanatory view showing the operation of the embodiment shown in Fig. 6, Fig. 11 is a partially enlarged view showing another embodiment of the vehicle rear seat occupant restraint device of the present invention, and Fig. 12 is the upper part of Fig. 11. A front view showing the anchor moving device, FIG. 13 is a sectional view taken along the line E-E in FIG. 12, and FIGS. 14 and 15 are a sectional view taken along the line FF and G-G in FIG. 12, respectively. FIG. 16, a sectional view taken along the line, is an explanatory diagram showing the operation of the embodiment shown in FIG. 11. ■... Rear seat, 4... Left and right seats, 5... Center seat, 6... Seat belt, 8... Upper anchor, 9...
・Buckles for left and right Shimotsuki, 10...buckle for center customer, 11...buckle moving device, 12...belt for left and right Shimotsuki, 13...belt for center customer, 14...buckle for left and right Shimotsuki Buckle holder, 15... Buckle holder for central customer, 16... Slider, 18... Ball, 19
... Guide rail, 20 ... Motor, 21 ... Reducer, 22 ... Sprocket, 30 ... Vehicle body outer panel, 31 ... Vehicle body inner panel, 32 ... Pillar trim, 33 ... Holder, 34... Belt guide, 35... Upper anchor moving device, 36... Reinforcement plate,
37...Slider, 3B...Spindle, 39...
・Guide, 40... Motor, 41... Decorative cover, 5
0... Upper anchor moving device, 51... Slider, 5
2... Spindle, 53... Guide, 54... Bearing, 55... Gear box, 56... Motor. Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 11 Figure 12 Figure 13 Figure 14

Claims (5)

[Claims] (1) It has a seat belt means for the center seat and a seat belt means for the left and right seats, and the seat belt means for the left and right seats are provided on the outside in the vehicle width direction, respectively, at a lower anchor part, an upper anchor part, and In a vehicle rear seat occupant restraint device supported by a buckle portion provided on the inside in the vehicle width direction, the position of the buckle portion of the seat belt means for the left and right seats is provided to be changeable in the vehicle width direction, and the upper anchor portion is provided. An occupant restraint device for a rear seat of a vehicle, characterized in that the position of the occupant restraint device is changeable. (2) Three passengers can sit on the center seat and the left and right seats, and the buckle of the seat belt means for the left and right seats should be placed outward in the width direction when three people are seated, and in the width direction when two people are seated. on the inside,
2. The occupant restraint device for a rear seat of a vehicle according to claim 1, wherein the upper anchor portions are provided so as to be located at respective positions, and the position of the upper anchor portions is changed corresponding to the position of the buckle portions. (3) The occupant restraint device for a vehicle rear seat according to claim 1, wherein the upper anchor portion is provided on the pillar. (4) The occupant restraint device for a vehicle rear seat according to claim 1, wherein the position of the upper anchor portion can be changed in the vertical direction. (5) The occupant restraint device for a rear seat of a vehicle according to claim 1, wherein the position of the upper anchor portion is changeable in the longitudinal direction.