JPH044914Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention is used in a seat belt device for protecting occupants in vehicle emergencies, and is used to move a buckle device for engaging a tongue plate from a tongue plate engaging position to a retracted position. The present invention relates to a structure for storing a buckle device.

[Background Art and Problems to be Solved] Generally, in a seat belt device, a tongue plate attached to an end of the webbing for restraining an occupant is engaged with a buckle device, so that the occupant is put into the webbing state.

This buckle device protrudes from approximately the center of the vehicle and is disposed to the side of a seated occupant.

Therefore, even when the seat belt device is not in use, this buckle device protrudes into the interior.
This causes the indoor living space to become narrow and the appearance of the room to be spoiled.

The present invention takes the above-mentioned facts into account, and aims to provide a buckling device storage structure that can move the buckling device to a retracted position and store it when not in use.

[Outline of the device and its function]

The buckle device storage structure according to the present invention is attached to the tip of a stay that swingably stands on one side of the seat, and is located between a tongue plate engagement position close to the seat and a retracted storage position away from the seat. a buckle device that is movable as the stay swings; a link that has one end connected to a substantially intermediate portion of the stay; and a link that is connected to the other end of the link and that swings the stay through the link. and a link drive means for moving the buckle device between the tongue plate engagement position and the retracted storage position, and a sensor for detecting a state in which the seat belt of the occupant is ready to be worn and a state in which the seat belt is released from the seat belt of the occupant, When this sensor detects that the seat belt can be fastened by the occupant, the link driving means drives the buckle device from the retracted storage position to the tongue plate engagement position through the link, and detects the seat belt release state of the passenger. The present invention is characterized in that the link driving means is connected to the link driving means to drive the buckle device from the tongue plate engagement position to the retracted storage position via the link when the buckling device is moved.

Therefore, when the occupant is seated in the seat and ready to wear the seat belt, when the sensor detects this, the link driving means swings the stay via the link, and the buckle device attached to the stay is therefore Move to the tongue plate engagement position. On the other hand, when the occupant releases the seat belt, the sensor detects this and the link drive means drives the stay in the opposite direction via the link, and the buckle device moves to the retracted storage position.

[Example of idea]

FIG. 1 shows a seat belt device to which an embodiment of the present invention is applied, and an occupant seated on a seat 10 is configured to wear an occupant restraining webbing 14.

One end of this webbing 14 is wound up by a biasing force onto a winding device 18 attached to the side wall of the vehicle body.
The middle part is folded back at a slip joint 20 which is pivotally supported on the upper part of the side wall of the car body, and after the middle part is folded back at the tongue plate 22, the tip part is locked to the lower part of the side wall of the car body via an anchor plate 23. There is. The take-up device 18 has a built-in inner shear lock mechanism that stops the webbing 14 from being pulled out in case of a vehicle emergency.

On the other hand, there is a console box 2 in the center of the vehicle.
4 is arranged to store small indoor items.
A buckle device 26 can be accommodated in a recess provided on the side surface of the console box 24. This buckle device 26 has a general locking mechanism (not shown) that can be engaged with the tongue plate 22, and the stay 28 is attached to the vehicle floor 30 and is swingable. This swinging is from the retracted position shown by the solid line in FIG. 1, where the tongue plate 22 is accommodated in the console box 24, to the tongue plate engagement position shown by the imaginary line in FIG. 1, at which the passenger inserts the tongue plate 22. .

One end of a link 32 is pivotally supported in the middle part of the stay 28, and the tip of this link 32 is inserted into a cylinder 34 housed in the console box 24. This cylinder 34 and link 32
A compression coil spring 36 constituting a link moving means is interposed between the stay 28 and the link 32, and urges the stay 28 to the tongue plate engagement position via the link 32. The link 32 and cylinder 34 constitute a guide mechanism that allows the buckle device 26 to swing.

A latch 40 driven by a solenoid 38 constituting link moving means is engaged with the intermediate portion of the link 32, and when the latch 40 is drawn into the solenoid 38 by the excitation force of the solenoid 38, the link 32 is moved into a compression coil. The stay 28 is swung by the biasing force of the spring 36, and the buckle device 26 is projected to the tongue plate engagement position.
A pinion 44 is engaged with a latch 42 formed at the intermediate portion of the link 32.
4 is adapted to be rotated by a motor 46 as link moving means. Therefore, when the motor 46 rotates, the buckle device 26 is moved to the retracted position and accommodated within the console box 24. Instead of the solenoid 38 and latch 40, the buckle device 26 may be driven to the tongue plate engagement position by the driving force of the motor 46.

As shown in FIGS. 2 and 3, the slip joint 20 is rotatably attached to the side wall of the vehicle with bolts 48, and the striker 50 protruding from the back is attached to a pair of sensors 52, 54 attached to the side wall of the vehicle.
It corresponds to

As shown by the solid line in FIG. 3, when the occupant is not wearing the webbing 14, the slip joint 20 is tilted toward the rear of the vehicle due to the winding force of the winding device 18, and when the occupant is not wearing the webbing 14. When the webbing 14 is pulled out for this purpose, it is configured to tilt toward the front of the vehicle as shown by the imaginary line in FIG.

Therefore, the striker 50 corresponds to the sensor 52 when the occupant wears the webbing, and corresponds to the sensor 54 when the webbing is removed from the occupant.
This signal is passed through the control device to the solenoid 38,
The signal is transmitted to the motor 46.

Next, the operation of this embodiment will be explained.

When the occupant sits on the seat 10 and pulls it out to attach the webbing 14, the slip joint 2
0 rotates toward the front of the vehicle around the bolt 48, the striker 50 corresponds to the sensor 52, and the state in which the webbing can be worn by the occupant is detected.

As a result, the solenoid 38 is energized and the latch 40 is retracted, so that the stay 28 and the buckle device 26 protrude from the console box 24 due to the biasing force of the compression coil spring 36, and the buckle device 26
The tongue plate is in the engagement position as shown by the imaginary line in the figure. Therefore, the crew member quickly removes the tongue plate 22.
is engaged with the buckle device 26 to put the seat belt in a fastened state.

When the passenger wants to release the webbing 14, the tongue plate 22 is pulled out from the buckle device 26, and most of the webbing 14 is attached to the take-up device 1.
The slip joint 20 rotates toward the rear of the vehicle in response to the biasing force that is wound onto the slip joint 8 . Striker 50 thus corresponds to sensor 54 which activates motor 46 . The link 32 is driven toward the cylinder 34 by the rotation of the pinion 44, and the buckle device 26 is moved toward the console box 24.
contained within. As a result, the buckling device 26 does not protrude into the room, increasing the living space in the room.

In the above embodiment, the state in which the occupant can attach the webbing is detected by the rotation of the slip joint 20, but as shown in FIG.
A seat sensor 56 is built into the seat so that the occupant can
The buckle device 26 may be made to protrude from the console box 24 upon detecting that the passenger is seated on the console box 24.

Next, FIGS. 4 and 5 show a sensor according to a second embodiment of the present invention.

In this embodiment, a bracket 59 is provided which is attached to the side wall of the vehicle body via a compression coil spring 58 and biased toward the webbing 14 extending from the slip joint 20 to the take-up device.
A central portion of a rocker arm 62 is pivotally supported by a pin 60 that is hung around this bracket 59. This rocker arm 62 is made by winding the center part of a bar material around the rocker arm 62, and one end is wrapped around the webbing 1.
The other end of the contact portion with 4 is inserted into the intermediate portion of the pair of sensors 64 and 66.

Therefore, in this embodiment, when the occupant pulls out the webbing 14 from the retracting device to put on the webbing 14, the locker arm 62 comes into contact with the sensor 64 as shown in FIG. 5, and the sensor 64 detects the state in which the seat belt can be worn by the occupant. However, when the occupant releases the webbing 14, the occupant moves in the opposite direction so that the sensor 66 can detect this. In this embodiment, the pulling out and winding operations of the webbing 14 due to the behavior of the occupant under normal driving conditions are based on the webbing 14 that moves when the occupant puts on the webbing.
Since this is different from the moving length of the webbing 14 when the webbing is released, this can be determined by the control device.

Next, FIGS. 6 and 7 show a sensor according to a third embodiment of the present invention.

In this embodiment, a webbing take-up shaft 68 provided in a webbing take-up device is pivotally supported by a sleeve 70 fixed to a frame (not shown). A friction plate 72 is pivotally supported on the sleeve 70, and a compression coil spring 74 is interposed between the sleeve 70 and the sleeve 70, so as to receive a resistance force against rotation.

In addition, a pin 80 protruding from a ratchet wheel 78 fixed to the winding shaft 68 corresponds to a notch 76 formed in the friction plate 72, so that the rotation of the winding shaft 68 is transmitted to the friction plate 72. There is. Sensors 82 and 84 are provided on both sides of this notch 76, respectively.
is attached so that the state of contact with the pin 80 can be detected. Further, the ratchet wheel 78 engages with a pawl (not shown) to stop the rotation of the winding shaft 68 in the event of a vehicle emergency.

Therefore, in this embodiment, when the occupant pulls out the webbing 14 to attach it, the take-up shaft 68 is attached to the pin 80.
comes into contact with one of the notches 76 to activate the sensor 82, after which the friction plate 72 overcomes the frictional resistance of the compression coil spring 74 and rotates together with the winding shaft 68. As a result, the sensor 82 detects the state in which the seat belt can be worn by the occupant, and when the occupant releases the webbing 14, the pin 82
rotates while the sensor 84 is activated. As a result, in this embodiment as well, it is possible to reliably detect the state in which the seat belt can be worn by the occupant and drive the buckle device to the tongue plate engagement position.

Note that the present invention is not limited to a structure in which the buckle device protrudes from inside the console box, but the buckle device can also be made swingable in the longitudinal direction of the vehicle, so that it swings toward the front of the vehicle, moves to the tongue plate engagement position, and moves toward the rear of the vehicle. It can also be structured to be housed within the seat.

[Effects of the invention] As explained above, in the buckle device storage structure according to the present invention, the buckle device is driven to the tongue plate engagement position while the seat belt of the occupant is ready to be worn, so the buckle device is driven to the tongue plate engagement position only when necessary. It has an excellent effect of being able to be moved to different positions.

[Brief explanation of drawings]

Fig. 1 is a front view from the front of the vehicle showing a seat belt device to which the first embodiment of the buckle device storage structure according to the present invention is applied, and Fig. 2 is an exploded perspective view showing the correspondence between the through ring and the sensor. , FIG. 3 is a view taken along the line in FIG. 2, FIG. 4 is a sectional view corresponding to FIG. 2 showing the second embodiment of the present invention, and FIG.
6 is an exploded perspective view showing a third embodiment of the present invention, and FIG. 7 is a side view showing the relationship between the friction plate and the winding shaft shown in FIG. 6. 14... Webbing, 20... Slip joint, 22... Tongue plate, 24... Console box, 26... Buckle device, 46...
Motor, 52, 54, 64, 66, 82, 84...
...Sensor, 56...Seat sensor, 62...Rotsuka arm.

Claims (1)

[Claims for Utility Model Registration] The above stay is attached to the tip of a stay that is swingably installed on one side of the seat, and is located between the tongue plate engagement position close to the seat and the retracted storage position spaced apart from the seat. a buckle device that is movable as the stay swings; a link that has one end connected to a substantially intermediate portion of the stay; a link that is connected to the other end of the link, and that swings the stay through the link; a link drive means for moving the buckle device between the tongue plate engagement position and the retracted storage position; and a sensor for detecting a state in which the occupant is able to wear a seatbelt and a state in which the seatbelt is released by the occupant. In the case where the link drive means drives the buckle device from the retracted storage position to the tongue plate engagement position via the link when the occupant's seatbelt ready state is detected, and the seatbelt release state of the occupant is detected. A buckle device storage structure, characterized in that the link drive means is connected to the link drive means via a link to drive the buckle device from the tongue plate engagement position to the retracted storage position.