JPS5826849Y2 - A device that supports the webbing guide on a guide in the drive device of a passive seat belt system. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drive device for a passive seat belt system, in which when the webbing is in the attached state,
A device for supporting a webbing guide on a guide is provided.

Conventionally, passive seat belt systems include, for example, a first
As shown in the figure, guides 5 and 5' are attached to the ceiling edge 2 of the vehicle body 1 and the inner wall 4 of the door 3 from the front to the rear, respectively.
A slidable K-ring-shaped webbing guide 6 and a cable member 6' are fitted into the guides 5 and 5', and a cable body I and a cable member I and a cable member 6' with the guide members 6 and 6' inserted into the guides 5 and 5' are fitted. 7' and connect the forward ends of the cables 1 and 7' to drive motors 8 and 8' provided in front of the guides 5 and 5';
Also, by using a drive device that connects the rear ends of the cables 7 and 7' to traction devices 9 and 9' provided behind the guides 5 and 5',
One end of the webbing 10 is fixed to the rear of the guide 5 via an anchor fitting 11, and the other end is first inserted through the guide body 6 to reach the buckle device 13 at the inner side lower part of the seat 12. 13 is folded back at the tongue 14, inserted into the other guide 6', and fixed by winding around an emergency lock type retractor 15 provided at the rear of the guide 5'.

In this passive seat belt system, when the door 2 is closed, the traction devices 9 and 9' position the guides 6 and 6' at the rear ends of the guides 5 and 5' via the cables 7 and 7', so that the webbing 10 takes the installed state as shown in Figure 1a.

Also, when the door 2 is opened, the drive motors 8 and 8' are activated.
The guides 6 and 6' are moved to the forward ends of the guides 5 and 5' through the cables 7 and 7' against the tension of the traction devices 9 and 9', so that the webbing 10 is moved as shown in FIG. The non-equipped state is adopted.

By the way, in this passive seat belt system, when an impact is applied when the webbing 10 is in the attached state,
Since the emergency locking retractor 15 is locked, the load applied to the webbing 10 by restraining the occupant is supported by the emergency locking retractor 15 and the anchor fitting 11.

However, in this case, since the webbing guides 6 and 6' move forward along the guides 5 and 5', friction occurs between the webbing guides 6 and 6' and the fixed webbing 10.

If this condition is repeated many times, the strength of the webbing 10 will decrease due to wear, and there is a risk that it will break when a load is applied.

Based on these circumstances, the present invention provides derivatives 6 and 6'
When the webbing 10 is in the attached state, the guides 5 and 5
By supporting the seat belt at the rear end of the seat belt, the passive seat belt system is made safe without the above-mentioned dangers.

Hereinafter, the present invention will be explained with reference to the embodiment shown in the drawings. In FIGS. 2a and 2b, 16 is provided on the ceiling edge 2 of the vehicle body 1 from the front to the rear, and has a substantially zero-shaped cross section. This is the formed guide tube.

11 is fixed to the ceiling edge 2 of the vehicle main body 1 with a bolt 18 at the rear of the guide tube 16, a cut groove 19 is provided from the front thereof, an inverted portion 20 is formed, and the final end thereof is a closed end 21.
This is a locking plate.

The cut groove 19 of the locking plate 17 and the slit 22 of the guide tube 16 constitute a guide 23 whose rear portion is curved and reversed, and whose final end is closed.

24 is provided with a pin 26 on its back surface that is inserted through the slit 22 into the guide tube 16 and into which the bulging portion 25 is fitted, and on its surface, the base portion 27 is fitted into the cut groove 19 of the locking plate 17. A matching pin 28 is provided and fixed to a cable body 29 provided along the guide tube 16, and the cable body 29 allows the guide 2
This is the main body of the derivative that moves along 3.

30 is a support plate having pins 31 and 32 on the back and front surfaces of one end, similar to the main body 24, and a ring portion 33 for inserting the webbing 10 at the other end.

34 is a link piece whose both ends are pivoted to the pin 28 of the main body 24 and the pin 32 of the support plate 30.

The main body 24, the support plate 30, and the link piece 34 constitute a guide body 35 that moves along the guide 23 as the cable body 29 moves and guides the webbing 10.

When this guide body 35 is positioned at the rear of the guide 23 by the cable body 29, the main body 24 presses the support plate 30 via the link piece 34 and enters into the inverted part 20 of the cut groove 19 of the locking plate 17. , since the pin 32 of the support plate 30 is brought into contact with the closed end 21, even if an impact is applied when the webbing 10 is in this state, that is, when the webbing 10 is in the attached state, the pin 32 of the support plate 30 will not close. Since it is supported by the end 21, it does not move forward along the guide 23.

Therefore, since no friction occurs between the webbing 10 and the fixed webbing 10 at this time, the webbing 10 will not be cut.

In addition, in order to move the guide body 35 forward from this state along the guide 23 by the cable body 29, the main body 24 pulls the support plate 30 via the link piece 34, and the cut groove 19 of the locking plate 17 is moved. It can be made to escape from the reversing section 20 and subsequently moved to the guide tube 16.

In the present invention, the inverted portion 20 of the cut groove 19 of the locking plate 17
is provided at an angle of rotation of at least 90 degrees, but if it is provided at an angle of rotation of nearly 180 degrees as in the embodiment, when the support plate 30 of the guide body 35 is removed from this part, the cable body 29 requires a large amount of force, so it is desirable to provide the following auxiliary means to facilitate movement.

The first is, as shown in FIG.
7, the force applied to the main body 24 is
4 operates like a lever, so that the support plate 30 is cut into the groove 19.
This makes it easier to move it along the reversing section 20 of.

Further, as shown in FIG. 4, if the link piece 34 is made up of two connecting link pieces 38 and 39 and the connecting part 40 is moved along the cut groove 19, the force applied to the main body 24 is reduced. acts on the support plate 30 in the direction along the reversed portion 20 of the cut groove 19 via the connecting link pieces 38 and 39, making it easier to move.

Furthermore, as shown in FIG. When the tongue piece 43 that is pivoted on the inside and abuts on the pin 32 of the support part 30 of the induction body 35 is integrally attached to the gear 42, the force applied to the main body 24 is transmitted to the tongue piece through the rack 41 and the gear 42. 43 acts on the pin 32 of the support plate 30 in the direction along the reversed portion 20 of the cut groove 19, which also makes it easier to move the support plate 30.

In this case, the engagement between the rack 41 and the gear 42 and the contact between the tongue piece 43 and the pin 32 of the support plate 30 must be synchronized. When the tongue piece 43 is not positioned, the tongue piece 43 is in the groove 1.
The position is secured by a pin 45 and a spiral spring 46 so that the opening 44 of the inverted portion 9 has a width of 200 Å.

In the embodiment of the present invention shown above, the guide provided on the ceiling edge 2 of the vehicle body 1 and the guide that moves along the guide were explained. However, the present invention includes a guide provided on the inner wall 4 of the door 3, Needless to say, it may also be used for a guide that moves along it.

By the way, the one shown in the above-mentioned embodiment is for guiding the shoulder belt portion 47 of the webbing 10,
In that case, when the guide body 35 moves to the front end of the guide 23, the support plate 30 is directed rearward due to the tension applied to the webbing 10 or the tractor 15, which may obstruct the passenger's getting on and off.

Therefore, as shown in FIGS. 6a and 6b, the main body 2 of the dielectric 35
4 and the support plate 30, an auxiliary link piece 48 is attached,
It is preferable that the support plate 30 always faces forward.

In this case, to connect the auxiliary link piece 48 to the support plate 30, a long hole 49 is provided in the support plate 30, and a pin 50 provided at one end of the auxiliary link piece 48 is fitted into the long hole 49, so that the support plate 30 is connected to the locking plate. When it is in the reversal section 20 of the kerf 19 of No. 17, it is preferable to allow it to rotate somewhat around the bottle 32 as shown in FIG.

Moreover, as shown in FIGS. 7a and 7b, the body 24 of the sea urchin derivative 35
A slope 51 whose upper part slopes forward may be formed at the rear of the support plate 30 , and the side portion 52 of the support plate 30 may come into contact with this slope 51 .

In this way, the present invention has the guide 23 whose rear part is curved and reversed, and is formed at its final closed end, and the guide 3
5 is fixed to the cable body 29, a support plate 30 that supports the webbing 10, and a link piece 34 that connects the two, so when the webbing 10 is in the attached state, as described above. The guide body 35 is supported by the rear part of the guide 23 and is fixed together with the webbing in the event of an impact, so that the webbing will not be worn out and its strength will not be reduced.

In addition, in the driving device of the passive seat belt system using the present invention, the webbing 10 can be arranged as shown in FIG.

That is, the webbing 10 is made up of a shoulder belt 53 and a waist belt 54, one end of the shoulder belt 53 is fixed to a guide member 35 that moves along a guide 23 provided on the ceiling edge 2 of the vehicle body 1, and Connect one end of the belt 54 to the inner wall 4 of the door 3.
The guide member 35 is fixed to move along the guide 23' provided in the seat 12, and the other ends of the guide member 35 are wound and fixed to the double winding type emergency locking retractor 55 provided at the inner side lower part of the seat 12. Let it happen.

This causes the guides 35 and 35' to guide the guides 23 and 23'.
The webbing 10 can be supported on the rear part of the
This is because the ends thereof may be directly fixed to the dielectrics 35 and 35'.

Therefore, with the webbing 10 arranged in this way,
Compared to the one shown in FIG. 1 above, when the door 3 is opened, the part indicated by X in FIG.
Since the webbing portion arranged parallel to the inner wall 4 of the door 3 can be eliminated, the retractor 55 can be made small without the need to wind up this portion X.

In addition, the winding length of the webbing 10 is correspondingly shorter) The winding force of the rafter 55 can be reduced, and the feeling of pressure on the occupant due to the winding force when the rafter 55 is worn can be alleviated.

Thus, the present invention can also provide various advantages to the passive seat belt system, since the guide of the drive device can be supported on the guide.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating a conventional passive seat belt system, in which a is a diagram with the door closed and the webbing in the attached state, or a diagram with the door open and the webbing in the unattached state. be. FIG. 2 is a diagram showing an embodiment of the present invention, in which a is a plan view or a sectional view taken along the Y--Y line in a. FIG. 3, FIG. 4, and FIG. 5 are diagrams showing other embodiments. Figures 6 and 7 are diagrams showing other embodiments in which the present invention is used for guiding the shoulder belt part of webbing, in which a shows the state in which the guide is in the guide tube. , or a state in which the locking plate is in a cut groove. Figure 8 is a diagram showing an embodiment of the passive seat belt system using the present invention. Figure 8 shows a diagram with the door closed and the webbing attached, or a diagram with the door open and the webbing not attached. FIG. 1...Vehicle body, 3...Door, 16.
...Guide tube, 17...Lock plate, 19.
...kerf, 20...reversal section, 21...
...Closing part, 22...Slit, 24...
...body, 29...chord body, 30...
Support plate, 34... Link piece, 38, 39...
... Connecting link piece, 41 ... Rack, 42.
... Gear, 43 ... Tongue piece, 48 ...
...Auxiliary link piece, 51...Slope.

Claims (1)

[Claims for Utility Model Registration] (]) A guide is provided from the front to the rear on the ceiling edge of the vehicle body or the inner wall of the door, and a webbing guide is slidably fitted into the guide, and the webbing guide A passive sheet that guides the webbing to the attached and unattached state by fixing it on a cable installed along a guide, and moving the webbing guide along the guide as the cable moves as the door opens and closes. In the drive device for a belt system, the guide is provided with a curved inverted portion at the rear thereof and is formed at its final closed end, and a webbing guide is fitted into the guide and fixed to the cable body. and a support plate that fits into the guide and supports the webbing, and a link piece that connects the two, and when the guide is positioned behind the guide by the cable,
A device for supporting a webbing guide on a guide, characterized in that the support plate penetrates into the curved inversion part and comes into contact with the closed end thereof. (2) A drive device for a passive seat belt system according to claim 1 of the utility model registration claim, characterized in that a bin is provided inside the curved inverted portion of the guide, with which the side portion of the link piece of the webbing guide comes into contact. A device for supporting a webbing guide on a guide. (3) Utility model registration claim 1, characterized in that the link piece of the webbing derivative is made up of two or more connecting link pieces, and the connecting part is movable along a guide. A device for supporting a webbing guide on a guide to be applied to a drive device of a passive seat belt system as described in 1. (4) A rack is provided on the main body of the webbing guide, and a gear that meshes with the rack is pivotally attached to the inside of the curved inverted part of the guide, and a tongue piece that contacts the support plate of the webbing guide from the rear is integrated with the gear. A device for supporting a webbing guide on a guide to be applied to a drive device of a passive seat belt system according to claim 1, wherein the device is attached to a guide. (5) Utility model registration request No. 1 characterized in that an auxiliary link piece is provided between the main body and the support plate so that the support plate faces forward when the webbing guide is located in the front part of the guide. A device for supporting on a guide a webbing guide that is applied to a drive device of a passive seat belt system according to item 1, 2, 3, or 4. (6) The passive seat belt system according to claim 5, wherein the connecting end of the auxiliary link piece to the support plate is fitted into a long hole provided in the support plate via a pin. A device that supports a webbing guide on a guide in a drive device. (7) When the webbing guide is located in the front part of the guide, a slope is provided at the rear of the main body so that the support plate faces forward, and the side part of the support plate comes into contact with this slope. A device for supporting a webbing guide on a guide in a drive device for a passive seat belt system according to claim 1, 2, 3, or 4.