JPS5941164Y2 - Automatic belt buckle support device - Google Patents

Description

[Detailed description of the invention] This invention is an improvement of an automatic belt device, in particular, when a movable anchor that responds to the opening and closing of a door and moves back and forth along a guide rail by a drive mechanism is in a restraining position, The present invention relates to a buckle support device which can be easily fitted and which does not impede switch operation even with the presence of the fitting function and enables normal alarm operation.

Automatic belt devices that respond to the opening and closing of doors and automate the loading and unloading of belts have attracted a lot of attention in recent years, and their production and research are progressing in various fields. A movable anchor that reciprocates along a guide rail is equipped with a mechanism, and a seat belt such as a shoulder belt is connected to this movable anchor via a buckle.

However, in such devices, when the movable anchor is in the restraining position, the anchor normally stops at a fixed position and supports the belt at a fixed angle, so that it can easily be moved even if the seated occupant is large or small. It was not possible to adapt to the body physique, and there was a problem not only in the lack of restraint and fit, but also in ensuring safety by wearing a belt.

For this reason, it has been considered to equip the pillars with height-adjustable equipment and adjust the height manually according to the physique, but such equipment is complicated and is prone to malfunctions. It's hard to say that it's very practical.

Particularly recently, attempts have been made to provide a switch at the restraining position of the movable anchor so as to issue an alarm when the buckle is uncoupled. This may impede the operation of the device and result in the device becoming even more complex.

In view of the above-mentioned actual situation, the present invention aims to solve all of these problems at once with a simple mechanism.The present invention is a restraint adapted to the physique of a seated occupant by rotatably pivoting a buckle device to a movable anchor. At the same time as the buckle rotates, the switch of the alarm device connected in series between the guide rail restraint position and the connection of the buckle device is normally open and the switch is energized when the buckle is not connected to issue an alarm. It is characterized by usurping.

Embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 shows an example of an automatic belt device to which the device of the present invention is applied. In the figure, 1 is a vehicle body, 2 is a door, and 3
4 is a seat, and 4 is a diagonal belt over the shoulder. One end of the diagonal belt 4 is wound around an emergency lock type winding device 5 attached to the floor on the side of the seat 3, and is pulled out from the winding device 5. A guide rail 6 that extends diagonally upward across the seat, and whose upper end reaches the inner surface of the A-pillar through the roof side from the B-pillar.
It is fixed to a buckle device 8 of a movable anchor that reciprocates along.

In this case, the buckle device 8 is used in case of an emergency, when the buckle body 9
Similar to other known cases, the and tongs are separable.

On the other hand, the movable anchor 7 responds to the opening and closing of the door, and is driven by a motor or mechanical drive device 1 provided at an appropriate position on the vehicle body.
2, the diagonal belt 4 is reciprocated along the guide rail 6 to automatically shift the diagonal belt 4 between a release position indicated by a chain double-dashed line and a restraint position indicated by a solid line in the figure.

The buckle device 8 in the device comprising the above-mentioned interfering device is an essential part of the present invention, and its details are illustrated in FIGS. 2 and subsequent figures.

That is, Fig. 2 is a schematic view of the cover being released when the buckle is connected, showing one example of the buckle support device of the present invention, Fig. 3 is a side view of the alarm switch section, and Fig. 2 shows the movable anchor 7 and the buckle device 8 in the restraining position. This figure shows the main structure of the present invention, which consists of a switch, a switch, and an anchor cover.

As is clear from the figure, the movable anchor 7 is located at the rear end of the guide rail 6 and maintains a normal restraint state.
A pin 14 is provided approximately in the middle of the tongue portion 7' of the movable anchor 7 slightly extending from the guide rail 6, and a belt attachment hole 13 into which the diagonal belt 4 is inserted and sewn.
The upper part of the tongue 10, which is latched to the buckle main body 9 having a shape, is pivotally mounted so as to be rotatable in the direction of the arrow.

It is also possible to pivotally attach the buckle body 9 to the movable anchor 7 instead of the tongue 10, but in this case, it is necessary to provide the tongue 10 with a portion for pushing up an anchor cover 15, which will be described later.

Reference numeral 15 denotes the aforementioned anchor cover, which is made of synthetic resin and is formed into a cylindrical shape with an angular or elliptical cross section, and surrounds and covers a part of the movable anchor 7 extending from the guide rail 6 to cover the movable anchor 7. It is attached to the lower part of the buckle by a pivot pin 20 so as to be rotatable to the upper side of the buckle.

This anchor cover 15 includes a tongue 10 which is a buckle member in the illustration and a buckle body 9 which is another member.
When connected, the buckle body 9 is rotated and pushed up by the upper side of the buckle body 9.

The anchor cover 1 is pushed up by the connection between the buckle body 9 and the tongue 10 and comes into contact with the buckle body 9.
One side 22 of the 5, that is, the push-up part has a substantially linear shape, and has a space inside that allows the tongue 10 to rotate according to the size of the seated occupant. At the time of rotation, the shape of the part of the anchor cover that comes into contact with the upper side of the buckle body 9 that rotates around the pivot point of the tongue 10 is formed in an arc shape centered on the pivot point 14, so that the buckle device can be rotated. Prevents the effects of rotation.

On the other hand, a pressing portion 23 for pressing an actuator spring 19 against an alarm switch 18, which will be described later, is provided at the upper portion of the anchor cover 15 on the opposite side to the arcuate portion.

Therefore, even if the buckle body 9 rotates together with the tongue 10 in the direction of the arrow in order to fit a large-sized occupant, the anchor cover 15 remains in the fixed position and presses the actuator 21 via the spring 19 of the alarm switch 18 with the pressing part 23. You can keep pressing.

The above-mentioned alarm switch 18 is provided at the lower end of the guide rail 6 (see FIG. 1), and is a switch that is normally open when the diagonal belt 4 is restrained and normally closed when the diagonal belt 4 is released. An alarm (not shown) is activated when the buckle main body 9 and the tongue 10 are separated.

Next, the operation of the automatic belt device of the present invention that was stolen as described above will be explained based on FIGS. 1 to 4. First, when a passenger opens the door 2 to get on the vehicle, The guard wire 11 is extended by the drive device 12, and the movable anchor 7 fixed to the tip of the guard wire 11 moves along the guide rail 6 together with the diagonal belt 4 from the restraining position to the forward release position, and the riding position is adjusted. It will be done.

At this time, the actuator 21 spring 19 of the alarm switch 18 in the restraint position and the pressing part 23 of the movable anchor 7 are separated, and the alarm switch 18 is closed from the normally open restraint position and energized, and an alarm (not shown) is activated. Give more warning.

Next, when the occupant sits down and closes the door 2, the movable anchor 7 returns to the restraining position along with the diagonal belt 4 by an operation opposite to that described above, and the occupant on the seat is restrained, and the lamp or buzzer is activated. The alarm will stop.

Now, in this restrained state, when the seated occupant has a large physique, the buckle main body 9 together with the diagonal belt 4 is lifted in the illustrated direction around the pivot pin 14, as shown in FIG. At this time, even if the buckle main body 9 rotates in the direction shown in the figure as described above, the pressing part 23 of the anchor cover 15 presses against the actuator 21 of the alarm switch 18. The buckle main body 9 rotates in contact with the arc 16 surface of the anchor cover 15 so as to continue pressing the spring 19.

In addition, in the next emergency, as shown in FIG. is pushed by the pivot pin 20 and rotates clockwise against the coiled spring wound around the pivot pin 20 or by its own weight, and the pressure between the pressing part 23 of the anchor cover 15 and the actuator 21 is released, and the alarm switch 18 is energized. An alarm (not shown) issues an alarm.

Thus, the alarm is issued when the buckle body 9 and the tongue 10 are disengaged or when the movable anchor 7 is in the released position.

In summary, the device of the present invention connects a movable anchor that moves with the opening and closing of a vehicle door and a buckle having a diagonal belt at a part of the anchor cover, provides the anchor cover with a pressing member that activates an alarm, and The belt can be rotated depending on the size of the occupant's physique, and the operation of the alarm is not affected by the rotation of the buckle. This allows for a good fit and allows for a comfortable ride, and even if the buckle device rotates to accommodate different body sizes, it does not affect the alarm at all, improving the reliability and safety of the vehicle. Furthermore, since the alarm switch is activated by the anchor cover, the appearance of the interior of the vehicle will not be spoiled, and the device is expected to have great practical effects as an automatic belt device.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of an automatic belt device to which the device of the present invention is applied, Fig. 2 is a sectional view of essential parts showing an example of the device of the present invention, and Fig. 3 is a side view of the alarm switch shown in Fig. 2. 4 is a diagram of the operating state of the device in FIG. 2, FIG. 5 is a diagram of the buckle body disengaged in the device of FIG. 2, and FIG. 6 is a side view of the alarm switch of FIG. 5. . 1...Vehicle body, 2...Door, 4...
...Diagonal belt, 7...Moving anchor, 9...
...Buckle body, 10...Tong, 15.
... Anchor cover, 18 ... Alarm switch, 22 ... Pressing part, 23 ... Pressing part.

Claims (1)

[Claims for Utility Model Registration] ■ A buckle device that is attached to a movable anchor for an automatic belt that reciprocates along a guide rail by a drive member in response to the opening and closing of a door, the buckle device being connected to a movable anchor that moves back and forth along a guide rail by a drive member. A buckle member consisting of a tongue or a buckle main body pivotally connected to the movable body; a push-up portion rotatably attached to the movable anchor at the lower part of the movable anchor and pushed up by the coupling when the buckle is coupled; The anchor cover is equipped with a pressing part that presses the actuator spring of the switch fixed in the restrained position of the guide rail.The anchor cover is normally pushed to the side where the actuator is not pressed, and the switch is pushed up by the buckle connection. A buckle support device for an automatic belt, wherein the actuator spring is pressed and the rotation of the buckle member and the operation of the anchor cover relative to the switch are independent of each other. 2. An anchor cover contact portion that comes into contact with another buckle member connected to the buckle member pivotally attached to the movable anchor when it rotates is formed in an arc shape centered on the pivot point of the buckle member of the movable anchor. A buckle support device for an automatic belt according to claim 1, which is a utility model.