JPH0587412B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a passive seat belt device for a vehicle that is improved so that the belt is reliably placed in the proper position of a seated person.

[Conventional technology]

FIG. 17 shows an example of a conventional seat belt device.

This seat belt device automatically attaches a shoulder belt 03, which is a webbing, to a person 04 sitting in the seat 02 in a straddling manner when the door 01 of the car is opened, the person is seated on the seat 02, and the door 01 is closed. Furthermore, when the seated person 04 exits the vehicle by opening the door 01, the shoulder belt 03 is automatically separated from the seated person 04 as the door 01 is opened. It is.

One end of the shoulder belt 03 is fixed to an anchor 06 attached to the inner surface of the upper part of the tower section 05 that stands up from the upper rear end of the door 01, and the other end is attached to the side of the seat 02 opposite to the door 01. It is adapted to be wound around a retractor 08 having a built-in inertia lock mechanism (not shown) attached to the floor 07 of the vehicle body.

In this conventional example, a passive seat belt is applied to the sashless door 01, but a passive seat belt is applied to the door with a sash,
In addition, as a retractor mounted on the door side, there is, for example, one disclosed in Japanese Utility Model Publication No. 18923/1983.

[Problem that the invention seeks to solve]

In the conventional device shown in FIG.
Open door 1 and sit on seat 02, then open door 01.
When closing the seat belt 03, the shoulder belt 03 is gradually wound around the retractor 08, and as shown by the imaginary line in FIG. (hereinafter simply referred to as the normal position) gradually approaches A.

However, especially when the seated person is a woman, the shoulder belt 03 may catch on the seated person's chest while it reaches its normal position, as shown by the solid line in Fig. 17, compressing the chest. Since it reaches the normal position,
The problem is that it is uncomfortable.

Furthermore, the device disclosed in the above-mentioned Japanese Utility Model Publication No. 59-18923 has the same problem as the above-mentioned case, and the shoulder belt 03 remains caught on the chest and cannot be pulled to the normal position. There are also problems.

It is an object of the present invention to provide a vehicle seat belt device that solves the above-mentioned problems, and in particular, it is an object of the present invention to provide a seat belt device for a vehicle that solves the above-mentioned problems. To provide a seat belt device for a vehicle which is equipped with a seat belt device and is improved so that an arm for moving the belt toward its normal mounting position does not obstruct people getting on and off the vehicle or loading and unloading luggage when the door is opened. It is an object.

[Means for solving problems]

According to the present invention, as a specific means for achieving the above object, one end of the belt is locked to the vehicle body side on one side of the seat, and the other end is locked to the door side on the other side of the seat. Lock,
A retractor for winding the belt with a predetermined winding force is provided at the end of the belt, and is moved by a predetermined amount of movement near the locking portion on the other side of the sheet. By providing an arm that draws the belt to the shoulder in its normal mounting position, and further providing a drive device that moves the arm from a non-operating position to an operating position, the belt can be held when the door is closed; In a vehicle passive seat belt device for restraining a person seated on a seat, the drive device includes a base member, a motor that can rotate when the door is closed, and is pivotally supported by the base member and is driven by the motor. a rotary plate that is rotated; and a link that is pivotally supported by the base member and whose tip end is connected to the rotary plate so as to be able to swing in conjunction with the rotation of the rotary plate; By linking the swinging part and the arm with a cable capable of transmitting tensile force, and activating the motor in the drive device by a door switch that detects that the door is closed, the rotary plate is rotated approximately once. , is characterized in that the arm is moved back and forth once from a non-operating position to an operating position.

Note that the arm may be provided on either a pillar or a door in the vehicle body.

[Effect]

According to the passive seat belt device for a vehicle of the present invention, when the door is closed after the person is seated on the seat, the door switch is activated, thereby the motor of the drive device is activated, and the rotary plate is rotated once.
The first half-rotation of the rotating plate at this time causes the link to swing in one direction, pulling the cable and causing the arm to reciprocate once from the inactive position to the active position.

The belt is moved by the arm from the inactive position to the activated position.
It is pulled toward the normal mounting position.

Therefore, even if the belt gets caught on the seated person's body, clothes, or other objects while it is being worn, the belt can be easily removed from the snag, and the belt can be reliably attached to the correct attachment position. can.

Thereafter, when the link is swung in the other direction following the above-mentioned swiveling in one direction by the latter half rotation of the rotary plate, the cable is relaxed and the arm is
It is moved back from the working position to the non-working position.

〔Example〕

1 to 14 show a first embodiment of the present invention.

The general structure of this embodiment will be explained with reference to FIGS. 1 to 3. Reference numeral 1 denotes a seat for the driver's seat provided on the vehicle body floor (not shown), and includes a seat 2 and a backrest 3. It is made up of 4 is
It is a suspensionless door, and the front end thereof is pivotally connected to the vehicle body with a door hinge (not shown) having a pivot shaft facing in the vertical direction, and the tower part 4a stands up at the rear end while gently curving inward. It is equipped with

Reference numeral 5 denotes a waist belt which is not directly related to the present invention, and like a known belt, one end is wound around a retractor (not shown) with a built-in inertia lock mechanism provided on the floor on the side of the seat 1 on the door 4 side. The seated person 8 (see FIGS. 12 to 14) so that it can be worn around the waist. The tongue piece 6 and the buckle body 7 form a known buckle device 9.

Reference numeral 10 denotes a shoulder belt which is a webbing, one end of which is wound around a retractor 11 equipped with a built-in inertia lock mechanism and installed at the rear lower part of the door 4. The shoulder belt 10 is a retractor 1
1, extends upward inside the tower portion 4a of the door 4, exits to the inside of the vehicle through an opening 12 formed at the middle part of the inner surface of the tower portion 4a, and then extends slightly into the interior of the opening 12 on the inner surface of the tower portion 4a. It passes through a horizontally elongated hole 13a of a shoulder through hole 13 installed above, passes through the front of the backrest 3 of the seat 1, and extends inwardly and downwardly. A tongue piece 14 is attached to the end of the shoulder belt 10 opposite to the one wound around the retractor 11, and the tongue piece 14 is attached to the side of the seat 1 opposite to the door 4. Buckle body 15 pivoted to the vehicle floor
By inserting and locking the shoulder belt 10 into the seat 8 when the door 4 is closed, the shoulder belt 10 can be worn across the seated person 8 in the event of a car collision, etc.
The seat 1 is designed to prevent the seat from jumping out of the seat 1 forward. Tongue piece 14 and buckle body 15
A known buckle device 16 is formed by these.

The buckle device 16 is for emergency release of the shoulder belt 10, and there is no need to remove the buckle device 16 normally.

When the door 4 is opened, the shoulder belt 10 is let out from the retractor 11, is pulled by the shoulder through 13, and moves forward away from the seated person 8. At this time, the seated person 8 can exit the vehicle by passing between the seat 1 and the shoulder belt 10.

In addition, when the door 4 is open and the door 4 is closed after passing between the seat 1 and the shoulder belt 10 to get on the vehicle and sitting on the seat 1, the shoulder belt 10 is closed.
0 is taken up by the retractor 11 while the seated person 8
It is attached in a sash-like manner.

At this time, the shoulder belt 10 is hooked onto the chest of the seated person 8 as shown in FIG. 12, and is placed in the normal wearing position as shown in FIG. An arm 17 is rotatably provided on the inner surface of the upper end of the tower portion 4a of the door 4 in order to prevent the door from being worn in the position where it is worn obliquely around the waist (hereinafter simply referred to as the normal position).

As shown in detail in FIGS. 4 to 11, a box-shaped case 18 with an inward opening is fixed to the upper end of the tower portion 4a with bolts 19. The part has cover 2
0 is fixed with a set screw 21.

A substantially horizontal rotating shaft 22 facing in the left-right direction is provided through the case 18 and the cover 20 so as to protrude inward from the cover 20. This rotating shaft 22 intersects with the inner surface of the tower portion 4a of the door 4 at an appropriate inclination angle that is not perpendicular.

The rotating shaft 22 has a large diameter part 22a whose outer diameter gradually decreases from the end on the case 18 side to the end on the cover 20 side, a medium diameter part 22b, and a short shaft part 22c.
and a small diameter portion 22d. Medium diameter portion 22
Planed surfaces 23 and 24 are formed on both sides of the outer periphery excluding the vicinity of the end near the large diameter portion 22a in b, and on one side of the small diameter portion 22a, and at the tip of the small diameter portion 22d. A male thread 25 is engraved.

A central hole 26 having a conical inner end is bored in the center of the end surface of the rotating shaft 22 on the side of the large diameter portion 22a. The ball 27 is attached to a carburized and quenched seat 29 fixed to the inner surface of a receiving member 28 screwed onto the case 18.
By receiving the rotary shaft 22, one end of the rotating shaft 22 is supported.

A short shaft portion 22c of the rotating shaft 22 is rotatably rotated in a bearing hole 30 formed in the cover 20.

The small diameter portion 22d of the rotating shaft 22 that protrudes inward from the cover 20 has a D-shaped hole 31a of the friction plate 31,
A circular shaft hole 32 protruding from the base of the arm 17
, the circular hole 33a of the friction plate 33, and the D of the friction plate 34.
The shaped hole 34a and the disc spring 35 are fitted in sequence, and by tightening the nut 36 screwed onto the male screw 25, they are pressed against each other, and the arm 17 is held at an appropriate level with respect to the rotating shaft 22. They are connected by frictional force. Therefore, friction plate 3
1, 33, 34 and the arm 17, etc., the arm 17 is moved toward the rotating shaft 2.
2 and a friction plate 31 that cannot rotate relative to the rotating shaft 22;
34.

A stopper 37 that protrudes inward is provided below the bearing hole 30 in the cover 20, and this stopper 37 is formed on the surface of the arm 17 facing the cover 20, as shown in FIG. By fitting the arm 17 into an arcuate groove 38 with an opening angle of approximately 90° or slightly larger around the rotation axis 22, the range of rotation of the arm 17 can be adjusted to the downward direction shown by the solid line in FIG. position and the forward operating position, also shown in phantom, to approximately a 90° range.

Since the arm 17 faces in a direction perpendicular to the substantially horizontal axis of rotation 22, it forms an appropriate inclination angle with respect to the inner surface of the tower portion 4a of the door 4. When the tip of the arm 17 rotates,
In order to make it easy to hook the shoulder belt 10 and prevent it from coming off, it is bent forward into a gentle hook shape and slightly inclined toward the inner surface of the door 4.

A guide member 39 having an arcuate and wide guide surface 39a on the upper part is rotatably fitted onto the large diameter portion 22a of the rotating shaft 22, and a guide member 39 having no flattened surface 23 on the middle diameter portion 22b of the rotating shaft 22 is rotatably fitted. In the part,
A rotating lever 40 is rotatably fitted on the outside.

A protruding piece 40a facing outward is connected to the lower end of the rotating lever 40, and when this protruding piece 40a engages with a notch 41 formed in the lower end of the guide member 39, the rotation lever 40 rotates. The movable lever 40 and the guide member 39 can rotate together around the rotating shaft 22.

A bending piece 40b is connected to the upper end of the rotating lever 40, and the bending piece 40b is bent so as to be substantially parallel to the inner surface of the upper end of the tower portion 4a of the door 4. The cable end member 42
is pivotally mounted with a shaft 43.

One end of a flexible cable 44 such as a wire is fixed to the cable end member 42 . The cable 44 extends downward from the cable end member 42 along the arcuate guide surface 39a of the guide member 39 and diagonally crosses the guide surface 39a (see FIGS. 6 and 9). The flexible guide extends downward through a notch 45 formed in the bottom wall 18a of the case 18, and its upper end is held by a fixing fitting 46 fixed to the lower surface of the case 18. tube 47
It is movable in the axial direction.

A protruding piece 40c facing inward is connected to the front edge of the rotating lever 40.

A fixed lever 48 has an elongated hole 49 and is fitted to the rotating shaft 22 so as not to be relatively rotatable in a portion of the inner diameter portion 22b of the rotating shaft 22 inside the rotating lever 40 where the planed surface 23 is located. There is. This fixed lever 4
8, when the rotating lever 40 is rotated clockwise in FIG.
is pushed by the protruding piece 40c, and is rotated in the same direction together with the rotating lever 40 and integrally with the rotating shaft 22.

A collar 5 is provided around the middle diameter portion 22b of the rotating shaft 22 between the fixed lever 48 and the cover 20.
A coil spring 51 is wound around the outer periphery of the collar 50. As clearly shown in FIGS. 4 and 8, one end 5 of the coil spring 51
1a to the bottom wall 18a of the case 18, and the U-shaped folded portion 51b formed at the other end of the coil spring 51 to the rear edge of the fixed lever 48, the coil spring 51 Therefore, the fixed lever 48 and the rotating shaft 22 are given a return rotational force in the counterclockwise direction in FIG. 8.

Thus, the case 18, the cover 20, and the rotating shaft 2
2, friction plates 31, 33, 34, guide member 39,
Rotating lever 40, fixed lever 48, coil spring 5
1 and the like form a rotation mechanism 52 for rotating the arm 17 by a desired angle.

In this rotation mechanism 52, when no tensile force is acting on the cable 44, the coil spring 51
The fixed lever 48 is urged counterclockwise in FIG. 8 by the rotation urging force, and as shown in FIG. In the state of contact, the rotating lever 40, the fixed lever 48, and the rotating shaft 22 are stopped.

In this state, when the cable 44 is pulled downward by a drive mechanism 53 to be described later, the rotation lever 4
0 is rotated in the clockwise direction in FIG.
etc. are rotated together in the same direction, and the arm 17 is rotated approximately 90 degrees from a non-operating position facing downward to an active position facing forward.

After that, when the tensile force of the cable 44 is removed,
Due to the biasing force of the coil spring 51, the fixed lever 4
8, rotating lever 40, rotating shaft 22, friction plate 31,
33, 34, arm 17, etc. are integrated into the 8th
Arm 1 is rotated counterclockwise in the figure.
7 is returned from the activated position to its original non-activated position.

As shown in FIGS. 1 to 4, FIG. 10, and FIG. 11, the drive mechanism 53 for pulling the cable 44 is entirely provided within the armrest 4b of the door 4.

That is, the drive mechanism 53
A base member 54 fixed to the inner panel 4c of the door 4 inside, a rotary plate 55 rotatably supported by the base member 54, a motor 56 fixed to the base member 54, and a motor 56 fixed to the base member 54. , and a reduction gear 57 that reduces the rotational force of the motor 56 and transmits it to the rotating plate 55, an engagement pin 58 protruding from an eccentric position of the rotating plate 55, and an upper end that is a base end of the rotating plate 55. At a position directly above the plate 55,
A link 61 is pivotally connected to the base member with a shaft 59 facing in the left-right direction, and has a long hole 60 facing in the longitudinal direction, into which the engaging pin 58 is slidably fitted, in the middle part. ing.

The lower end of the link 61 is fixed to the other end of the cable 44 which extends forward from the other end of the guide tube 47 which is fixed to the base member 54 with an appropriate fixing fitting 62 at the rear thereof. The cable end member 63 is connected to the shaft 6 facing in the left-right direction.
It is pivoted with 4.

The rotating plate 55 and the link 61 are connected to the base member 54
The motor 56 is disposed on the inside surface of the vehicle.
The deceleration device 57 is disposed on the outer surface of the base member 54.

The speed reducer 57 includes, for example, a worm (not shown) linked to the rotating shaft of the motor 56 and a worm wheel (not shown) meshed with the worm and linked to the central shaft 65 of the rotary plate 55. Any known material may be used.

A notch 66 is formed at one location on the periphery of the rotating plate 55, and actuating pieces 67a, 68 are inserted into this notch.
A position control sensor 69 consisting of two limit switches 67 and 68 that is activated by engagement of the position control sensor 69 is fixed at a proper position on the base member 54.

For example, when the rotary plate 55 rotates clockwise in FIG. 10 from the state shown in FIG. 10, the position control sensor 69 switches one limit switch 67 from ON to OFF, and then switches the other limit switch 68 to OFF. OFF-ON-OFF,
Thereafter, it is detected that the limit switch 67 is turned on again, and the operation of the motor 56 is stopped, thereby causing the rotary plate 55 to rotate exactly once and stop at a fixed position.

A start switch (not shown) for starting the operation of the motor 56 may be a door switch (not shown) that is activated only at the moment the door 4 is closed.

The control circuit for the motor 56 may be such that the motor 56 is energized when the start switch is activated, and the position control sensor 69 is activated, for example, as described above, to stop energizing the motor 56. , may have any configuration. Furthermore, the motor 56 may be one that can rotate only in one direction.

Thus, when the motor 56 is operated, the rotary plate 55 is rotated exactly one rotation in the clockwise direction in FIG. By rotating together with the plate 55 as a crank, it is reciprocated once from the stop position shown by the solid line in FIG. 10 to the tension position also shown by the imaginary line.

At this time, the link 61 has the engagement pin 58 at the tenth position.
During a rotation period of more than 180° clockwise from the position shown by the solid line in the figure to the position shown by the imaginary line, the engagement pin 58 makes one forward movement and continues as shown in the phantom line in Fig. 10. One return movement is made during a rotation period of less than 180° from the position to the position shown by the solid line.

Therefore, when the rotational speed of the rotating plate 55 is constant, the link 61 makes a quick return movement, and when moving forward to pull the cable 44, it moves slowly with a strong force.
This is convenient because it moves at high speed during the return movement, which does not require a large amount of force.

Thus, the rotation mechanism 52, the drive mechanism 53, the cable 44, and the like form a drive device 70 that rotates the arm 17.

Next, the overall operation of this first embodiment will be explained with reference mainly to FIGS. 12 to 14.

Arm 17 is usually shoulder through 13
It is located in a hanging position facing downward at the rear of the shoulder belt 10 that is hung on the shoulder belt 10.

In this state, when the door 4 is opened and the passenger is seated on the seat 1 from between the shoulder belt 10 and the seat 1, and the door 4 is closed, the shoulder belt 10 is gradually retracted by the retractor 11 and the passenger is seated on the seat 1. Gradually approach the position.

As shown in FIG. 12, even if the shoulder belt 10 were to get caught on the chest of the seated person 8 on its way to its normal position, the door switch (not shown) is activated at the same time as the door 4 is closed. As a result, the drive mechanism 53 is operated as described above, the cable 44 is pulled, and the rotating shaft 22 and the like are rotated clockwise in FIG. 8 on the rotating mechanism 52 side, so that the arm 17 The shoulder belt 1 is rotated from the non-operating position to the operating position.
The above-mentioned catch of 0 is eliminated.

That is, when the arm 17 rotates, the shoulder belt 10 is scooped up by the tip of the arm 17 under the winding force of the retractor 11, and is directed to the normal position, that is, in this embodiment. When analyzing the direction of the vehicle body in three directions: top and bottom, front and rear, and left and right, it is pulled upward, forward, and inward. As a result, the shoulder belt 10 is removed from the chest of the seated person 8 and is securely attached to the normal position over the shoulders of the seated person 8.

When the arm 17 is returned from the operating position to the non-operating position by the return movement of the link 61 in the drive mechanism 53 and the biasing force of the coil spring 51 in the rotation mechanism 52, the shoulder belt 10
With the return rotation of arm 7, it is gradually wound up by retractor 11, and when arm 17 returns to the non-operating position, it is reliably mounted at the normal position.

If a human body hits the arm 17 or a strong external force is applied to the shoulder belt 10 when the arm 17 rotates or stops, the friction plate 31, the arm 17, and the friction plate 34 and friction plate 3
3 slide relative to each other, and the arm 17 is connected to the rotation axis 2 within the range of the inactive position and the activated position.
2, and can prevent the arm 17 from hurting the human body or damaging other objects.

If the arm 17 rotates relative to the rotating shaft 22 as described above and a positional deviation occurs between them, the positional deviation is easily corrected by the first operation of the drive mechanism 53 thereafter. Ru.

That is, when the arm 17 is stopped at a position other than the non-operating position, when the drive mechanism 53 is activated and the rotating shaft 22 is rotated clockwise in FIG. Before the rotation angle is reached, the right end surface of the arcuate groove 38 in FIG.
2 is further rotated to the maximum rotation angle, the friction plate 31, the arm 17, and the friction plate 3
4 and the friction plate 33 slide against each other, and the arm 17 is returned to its initial position with respect to the rotating shaft 22. Thereafter, when the rotating shaft 22 is rotated back to its original position, the arm 17 reaches the non-operating position.

Note that when the arm 17 is stopped at a position other than the non-operating position, by forcibly rotating the arm 17 to the non-operating position with a force greater than the frictional force of the friction plates 31, 33, 34, etc. The above positional deviation can also be corrected.

When the door 4 is opened, the shoulder belt 10 is let out from the retractor 11, pulled by the shoulder case 13, and moved forward away from the seated person 8. At this time, the seated person 8 can exit the vehicle by passing between the seat 1 and the shoulder belt 10.

FIG. 15 shows a second embodiment of the invention.

In the second embodiment, the same members as in the first embodiment are shown with the same reference numerals, and detailed explanation thereof will be omitted. The same applies to the third embodiment described later.

In the second embodiment, the arm 17' is attached to the inner surface of the pillar portion 7 of the vehicle body that can be engaged with the shoulder belt 10 when the door 4 is closed, in substantially the same manner as in the first embodiment. Therefore, the rotation mechanism 52', the drive mechanism 53', etc. are all provided on the vehicle body side, and when the door is closed, the arm 17' rotates to direct the shoulder belt 10 to the normal mounting position, that is, upward. , so that it is pulled forward and inward.

With such a configuration, there is no need to provide the rotation mechanism 52', the drive mechanism 53', etc. on the door 4 side, so there is an advantage that the door 4 can be made lighter.

FIG. 16 shows a third embodiment of the invention.

In the third embodiment, an arm 71 that pulls the shoulder belt 10 toward the normal wearing position is attached to the upper part of the sash 72a of the door 72 so as to be able to slide freely in the front and back direction, and is supported by an appropriate spring (not shown) or the like. , the link 7 in the arm 71 and the drive mechanism 73 provided in the door 72, which is always biased toward the rear.
4 are connected to each other by a cable 44, and furthermore, the tip (upper end) of the link 74
and the eccentric portion of the rotating plate 55 are connected to each other by a connecting rod 75.

With the configuration as in the third embodiment, the motor 56 rotates the rotating plate 55 once, and the connecting rod 75 and link 74
By pulling or relaxing the cable 44, the arm 7
1 from the non-operating position shown in FIG. 16 to the operating position (not shown) in front of it, or in the opposite direction, and pull the shoulder belt 10 forward with the arm 71 to properly wear the shoulder belt 10. It can be easily placed in position.

The present invention can be modified in many ways in addition to the embodiments described above.

〔Effect of the invention〕

According to the present invention, even if the belt should get caught on the body or clothes of the person seated on the way to the normal wearing position, it can be easily removed or the risk of such getting caught can be eliminated, and the belt can be easily removed. To ensure that a belt is worn at a proper wearing position without giving an uncomfortable feeling of pressure to a seated person when wearing the belt.

Furthermore, according to the present invention, the drive device can be installed at a suitable location on the door or vehicle body away from the mounting position of the arm, so the arm can be installed in a narrow place such as a door tower or sash. At the same time, it is possible to have flexibility in how the entire device is attached to the door or vehicle body, that is, the layout.
It is meaningful.

Furthermore, according to the configuration of the present invention, the arm can be reciprocated once through the link and cable by one revolution of the rotary plate, which has the advantage of easy control and reliable operation. .

Further, according to the present invention, the arm is only moved to the operating position when the door is closed, and even if it is moved to the operating position, it is immediately deactivated by the latter half turn of the rotary plate. Since it can be returned to the position, when opening the door to get on and off, or when loading and unloading luggage, the arm moves to the operating position and prevents people from getting on and off or loading and unloading luggage. It is safe because there is no risk of damage to the arm itself or the cargo or injury to the human body due to a collision with the cargo.

Furthermore, the power consumption is low, since the drive only has to be activated substantially when the door is closed, i.e. it does not have to be activated when the door is opened or is open. Finish.

Further, since the closing of the door is detected by the conventionally installed door switch, there is no need to provide a new detection means, and there is no increase in the number of parts or weight.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of an automobile equipped with a passive seat belt device according to a first embodiment of the present invention, as seen from inside the vehicle, FIG. 2 is a schematic side view, and FIG. 3 is a schematic rear view. Fig. 4 is an exploded perspective view of the main parts, Fig. 5 is a partially cutaway side view of the arm and rotation mechanism seen from inside, and Fig. 6 is A-A in Fig. 5.
7 is a longitudinal sectional view taken along line B-B in FIG. 5, FIG. 8 is a longitudinal sectional view taken along line C-C in FIG. 6, and FIG. 9 is a longitudinal sectional view taken along line C-C in FIG. A vertical cross-sectional view taken along line D-D in FIG. 6, FIG. 10 is a side view of the drive mechanism, and FIG. 11 is a vertical cross-sectional view taken along line E-E in FIG.
12 to 14 are schematic perspective views for explaining the operation of the present invention, and FIG. 12 shows the state when the shoulder belt is hooked on the chest of the seated person.
Figure 13 shows the state when the arm rotates and pulls the shoulder belt toward its normal wearing position.
FIG. 14 is a diagram showing the state when the shoulder belt is attached to the normal attachment position, and FIG. 15 is a schematic view of an automobile equipped with a seat belt device according to a second embodiment of the present invention, as seen from inside the vehicle. FIG. 16 is a schematic perspective view of a door equipped with a seat belt device according to a third embodiment of the present invention, seen from inside, and FIG. 17 is a perspective view of an automobile equipped with a conventional seat belt device, seen from inside the vehicle. It is a schematic perspective view. 1 seat, 4, 72 doors, 4a tower section, 72
a Satsushi, 4b armrest, 8 seated person, 10
Shoulder belt (belt), 11 retractor, 16 buckle device, 17, 17', 71 arm, 22 rotating shaft, 31, 33, 34 friction plate, 39 guide member,
40 rotating lever, 44 cable, 47 guide tube, 48 fixed lever, 51 coil spring, 52,
52' rotation mechanism, 53, 53', 73 drive mechanism, 5
4 base member, 55 rotary plate, 56 motor, 57 reduction gear, 58 engagement pin, 61, 74 link, 69
Position control sensor, 70 drive device, 75 connection rod.

Claims (1)

[Claims] 1. One end of the belt is locked to the vehicle body side on one side of the seat, and the other end is similarly locked to the door side on the other side of the seat, and the belt is held in a predetermined position. A retractor that winds up the belt with winding force is provided at the end of the belt, and is moved by a predetermined amount of movement near the locking part on the other side of the sheet, thereby returning the belt to the normal mounting position. By providing an arm that can be pulled toward the shoulder of the driver, and further providing a drive device that moves the arm from a non-operating position to an operating position, when the door is closed, the person seated on the seat can be pulled by the belt. In the passive seat belt device for a vehicle, the drive device includes a base member, a motor that is rotatable when the door is closed, and a rotary plate that is pivotally supported by the base member and rotated by the motor. , a link that is pivotally supported by the base member and whose tip end is connected to the rotary plate so as to be able to swing in conjunction with the rotation of the rotary plate, the swinging portion of the link and the arm are connected to each other by a cable capable of transmitting tensile force, and the motor in the drive device is activated by a door switch that detects that the door is closed, and the arm is moved to the non-operating position by rotating the rotary plate approximately once. A passive seat belt device for a vehicle, characterized in that the device is configured to move back and forth once from the point to the operating position. 2. The passive seat belt device for a vehicle according to claim 1, wherein most of the drive device is built inside the armrest of the door. 3. The link of the drive device is connected to the rotating plate through an engaging pin protruding from an eccentric portion of the rotating plate and a long hole formed in the link and capable of engaging with the engaging pin. A passive seat belt device for a vehicle according to claim 1 or 2.