JPS62191253A - Seat belt device - Google Patents

Abstract

PURPOSE:To automatically carry out the release of a buckle by providing a means of releasing the engagement of a tongue with a buckle being interlocked with the opening operation of the inside handle of a door. CONSTITUTION:When a rider operates an inside handle 7 to open or close a door 6, a connecting rod 9 is moved pulling a flexible wire 11. Thereby, an engaging member 45 retracts a release button 1 into an upper cover 18. The movement of the release button 17 rotates a latch 15 by means of the inclined part 27 of its end part, to remove a latch part 22 from the engaging hole 30 of a tongue 5. Thus, the tongue 5 can be automatically separated from a buckle 3 being interlocked with the opening operation of the door 6 by means of the operation of the inside handle 7.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to improvement of seat belt devices for automobiles, etc.
11vru.

[Prior Art] Conventionally, seat belt devices for automobiles, etc.
Widely used devices are equipped with a lock pick-up device (El-R) so that when the tongue is released from the buckle, the weight is automatically taken up on the ELR. (For example, see Figures 1 and 2 of Utility Model Application Publication No. 53-153631) [Problem to be solved by the invention! However, with such conventional seat belt devices, the occupant must manually disengage the tongue of the buckle with one pull each time he or she gets out of the vehicle, which is cumbersome.

In particular, diagonal seat belts with shoulder belts that automatically restrain and release occupants are
How to remove the hip belt 1) If you use JFi's product, it will be a big hassle even if the shoulder belt is automatic.

This invention was developed in view of the above-mentioned conventional problems, and it focuses on the fact that the release operation of the seatbelt l- is normally closely related to the passenger's movement to exit the vehicle. To provide a seat belt device which can automatically release a tongue from a buckle in conjunction with opening an inside handle of a seat belt, and can disconnect waving.

[Means for Solving the Problem] The present invention includes a tongue attached to the tip of waving, a buckle that can freely engage and release the tongue, and a buckle that is connected only to the opening operation of the inside handle of the door. and an interlocking means for releasing the engagement of the tongue.

When the inside handle is opened to hear the door, the interlocking means releases the tongue from the buckle.

[Embodiments of the invention] Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

First, to give an overview, as shown in FIG. 1, an ELR 2 and a buckle 3 are arranged on both sides of seats 1 to 1 of an automobile. A waving 4 is extended from the E L R2, and a tongue 5 is attached to the tip of the waving 4.

Further, an inside handle 7 is attached to the door 6 (c), and a connecting rod 9 that connects the inside handle 7 and the door lock device 8 is connected to the connecting rod 9 as an interlocking means.
A rod interlocking connection device 10 is provided. From this rod interlocking connection device 10 to a flexible wire 11
protrudes from the buckle 3, and is connected to a release means of the buckle 3, which will be described later.

As shown in FIGS. 2 to 4, the buckle 3 includes a base plate 13 connected to a fixed rod 12, and a latch on which left and right arms 14 and 14 are rotatably supported on the base plate 13. 15, this latch 15
It is composed of a push-up spring 16 for pushing up, a release button 17 as a release means, and upper and lower covers 18 and 19 that house these elements.

The left and right arms 14.14 of the latch 15 are rotatably locked in triangular locking holes 21.21 formed in the left and right rising portions 20.20 of the base plate 13. A push-up spring 16 abuts from below a latch portion 22 that rises diagonally from the rear of the center portion of the latch 15, supporting the latch 15 in an engaged state.
A rising piece 23 for engaging with the release button 17 is formed at the end of the button 5 .

The release button 17 is slidably inserted into the guide hole 24 of the upper cover 18, and is always held in the direction of popping out from the guide hole 24 by a compression spring 26 inserted between it and a spring seat plate 25 inside the upper cover 18. energized. The inclined portion 27 at the tip of the release button 17 faces the rising piece 23 of the latch 15 in the front and back. 23 is rotated downward.

A switch 28 for detecting engagement of the tongue 5 is disposed on the base plate 13 at a position facing the latch portion 22 of the latch 15 in the front and back directions.

The engagement and release operations of the tongue 5 with respect to the buckle 3 will be described next. As detailed in Figures 2 and 4,
When the tongue 5 is inserted into the buckle 3 through the tongue insertion hole 29 of the upper cover 18, the tip of the tongue 5 will latch onto the latch 15.
The latch portion 22 of is pushed down against the force of the push-up spring 16. After this, the push-up spring 16 pushes up the latch part 22,
The latch portion 22 is engaged with the engagement hole 30 of the tongue 5. Incidentally, during this engagement, the tip of the tongue 5 operates the contact 31 of the engagement detection switch 28 to turn off the lamp indicating that the seat belt is not fastened.

To release the tongue 5 from the buckle 3, the release button 17 is pushed in against the force of the compression spring 26.

This operation causes the inclined portion 27 of the release button 17 to push down the rising piece 23 of the latch 15, causing the entire latch 15 to rotate clockwise around the arm 14.14 as shown by arrow A in FIG. let As a result of this rotation, the latch portion 22 is disengaged from the engagement hole 30, and the tongue 5 is released from the buckle 3.

In such a seat belt device, a rod interlocking connection device 10 is provided for separating the tongue 5 from the buckle 3 in conjunction with the opening operation of the inside handle 7 of the door 6.
The structure and operation of C1 will be explained next.

A rod interlocking connection device 10 as an interlocking means connected to the connecting port rad 9 of the inside handle 7 shown in FIG. 1 is shown in detail in FIG. 3 and FIGS. 5 and 6. An L-shaped connecting fitting 32 is fixed to the connecting rod 9. An engagement pin 33 is provided in a horizontal portion of the connecting fitting 32.

A main body 34 is fixed to the inner wall of the inner panel 6a of the door 6 with screws 36. Inside this main body 34,
The actuator 3 is installed so that a pawl 37 that detects vehicle deceleration at the time of a collision or lateral acceleration at the time of a rollover is maintained in a vertical state, and is supported by a bin 38.
9 engages with a spherical concave portion 40 of this bowl 37.

A separation connecting piece 42 supported by a connecting pin 41 is engaged with the upper side of the three actuators. This separation connection piece 42 has its tip protruding from the main body 34 toward the connection fitting 32, and the connection fitting 32 is inserted into the engagement hole 43 of the protrusion.
The engagement pin 33 is removably engaged.

One end of the wire inner 11a of the flexible wire 11 is connected to the connection pin 41 of the separation connection piece 42. One end of the wire outer 11b is fixed to the main body 34 (
There is. The other end of the wire inner 11a is connected to the release button 17 of the buckle 3 as shown in FIGS.
There is. That is, the end of the wire outer 11b of the flexible wire A711 is fixed with the fixing nut 44 installed at the rear of the upper cover 18, and the locking part 445 fixed to the tip of the wire inner 11a is engaged with the release button 17+FL.

ing. Here, a locking hole 46 with a narrow rear opening is formed on the tongue 17 side, and this locking hole 46
By inserting the locking member 45 therein, the tip of the flexible wire A711 is connected to the release button 17. The wire inner 11a passes through the notch 25at'' with respect to the spring seat plate 25.

The operation of separating the tongue 5 from the buckle 3 by the rod interlocking coupling device 10 will be described next.

In the normal state, the pawl 37 stands vertically as shown by solid lines in FIGS. The piece 42 is in a horizontal state, and the engagement hole 43 engages with the engagement pin 33 of the connecting fitting 32.

Therefore, the occupant operates the inside handle 7 to open the door 6.
When opened and closed, the connecting rod 9 moves in the direction shown by the arrow in FIG. Along with this movement of the connecting rod 9, the connecting fitting 32 also moves in the L1 direction, and the flexible wire 711 is pulled in the L1 direction via the engagement pin 33 and the separation connecting piece 42.

Therefore, the flexible wire 11 is pulled in the direction of arrow L2 in FIG. 2, and the locking member 45 pulls the release button 17 into the upper cover 18.

The movement of the release button 17 is the same as when the buckle 3 is manually operated [1], and the inclined part 27 at the tip of the release button 17 rotates the latch 15 clockwise as indicated by arrow A, from the engagement hole 30, and remove the tongue 5 from the engagement hole 30.
Separate.

In this way, the tongue 5 can be automatically separated from the buckle 3 in conjunction with the opening/closing operation of the door 6 by operating the inside handle 7.

In addition, in the event of a collision or rollover, the door 6
Even if the buckle 3 is opened, the inside handle 7 is not interlocked with the operation of the locking device @8, so the buckle 3 is not released, and the safety of the occupant is ensured.

On the other hand, in the event of a collision or rollover, even if Higashiguchi somehow puts his hand on the inside handle 7 and moves it,
The original role of the seat belt device is to keep the occupant restrained in the seat 1.

Therefore, in such a case, the rod interlocking connection device 10
It moves so as not to be linked to the operation of the inside handle 7.

In other words, when large decelerations and lateral accelerations are applied to a car due to a collision or rollover, what can you imagine in Figure 5? 2″C indicates J,
The sea urchin bowl 37 tilts from the vertical position, and the actuator 3
Rotate 9 to push it up. Actuator 39
With this rotation, the disconnection connecting piece 42 is rotated upward, and the engagement hole 43 is removed from the engagement pin 33. Therefore, the separation connection piece 42 is separated from the connection fitting 32, and even if the connection rod 9 and the connection fitting 32 are moved by operating the inside handle 7, the separation connection piece 42 is not pulled and the flexible wire 11 is No pulling,
The tongue 5 is not separated from the buckle 3, and the safety of the occupant is ensured.

Note that one end of the flexible wire 11 can also be directly connected to the connecting fitting 32. The above seat belt device is also applicable to ships, aircraft, etc.

[Advantageous Effects of the Invention 1] This invention separates the tongue from the buckle in conjunction with the opening operation of the inside handle of the door, so there is no need for the passenger to release the buckle every time he or she exits the vehicle, and the door opening operation is simplified. The tongue can be automatically separated from the buckle.

Furthermore, even if the door is opened unexpectedly, the inside handle does not move in conjunction with the movement of the locking device, so the buckle will not be released unless the inside handle is operated, thereby ensuring the safety of the occupants.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view of the buckle portion of the above embodiment, FIG. 3 is an exploded perspective view of the buckle portion and lot interlocking connection device of the above embodiment, and FIG. 4 5 is a perspective view illustrating the engagement state between the buckle and the tongue of the above embodiment, FIG. 5 is a cross-sectional view not showing a portion of the lot interlocking coupling device of the above embodiment, and FIG. 6 is the Vl shown in FIG. -V
It is a sectional view taken along the l line. 3... Buckle 4... Waving 5.
...Tang 6...Door 7...Inside handle 9...Connecting rod 10...Rod interlocking connection device (interlocking means) Patent applicant Nissan Motor Co., Ltd./. ,,3゜/゛/゛Fig. 2 1 3...Buckle 4-...Webbing S...Tang 6...Door door/middle inside handle 9...Connecting rod

Claims (1)

[Claims] A tongue attached to the tip of the waving, a buckle that can freely engage and release the tongue, and an interlocking means that moves only when the inside handle of the door is opened to release the engagement of the tongue with the buckle. A seat belt device consisting of: