JPS5931490Y2 - Passive belt slide anchor locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slide anchor lock device for a pansive seat belt installed in an automobile.

Recently, in order to improve the ease of wearing a seatbelt, a pensive seatbelt device as shown in FIGS. 1 to 5 has been put into practice.

This passive seatbelt device automatically restrains and releases a four-metal metal seatbelt 6 for an occupant sitting on a seat 3 by opening and closing a door 2 of an automobile 1.

This passive seat belt device is broadly divided into a seat belt, a guide rail, a bush pull wire, a slider, and a housing.

Among these, the locking mechanism between the slider and the housing is particularly called a slide anchor locking device.

Next, we will discuss this conventional configuration.

One end of the seat belt 6 is attached to the tunnel part 8 in the center of the vehicle floor via a retractor 7, and the other end is attached to the door 2.
A slider 1 slides in the front-rear direction within a guide rail 9 attached to the side roof rail 1a in conjunction with the opening and closing of the slider 1.
0 with bolts 12 via anchors made of 11 gold.

The slider 10 includes a slider main body 10a, a bracket 47, and a roller 24 rotatably sandwiched between the slider main body 10a and the bracket 47 by a roller pin 24a.

The slider main body 10a has a hollow hole 28 for fixing the bolt 12, a launch engagement hole 25, and a tongue portion 17.

Further, both legs 47a of the bracket 470 have holes 47bk for inserting rods 45, which will be described later.

The housing 29 has a side wall 29e that is perpendicular to a bottom portion 29d and parallel to each other, and has a U-shaped cross section without any gold, and a bolt 30. The washer 30c has a mounting hole 29a, the both side walls 29e have a shaft support hole 31 in which both ends 32a of the launch 32 are rotatably held, and the flange 29fk extends from the side wall 29e in parallel with the bottom 29d. This flange 29f has a spring 3 that urges it to engage with the latch engagement hole 25 of the latch 32 gold slider 10.
3 is a shape that allows the cam 46 to pass through (revenue) 3
3a.

The guide rail 9 has an inner wall surface 9a, which is a groove shaped metal remaining at the bottom, for guiding the movement of the slider 10, and a housing part 9bk, for storing and guiding the bush pull wire 40.

Further, in the housing portion 9b, a guide hole 4 is provided in which a guide block 41 is fixed at an appropriate gap for bending and buckling the bush-pull wire 40, and the bush-pull wire 40 can freely slide therein.
There are 2 gold coins.

The bush pull wire 40 is a guard wire, one end of which is connected to a joint 43 that drives the slider to the locking position with the 10 gold latch 32, and the middle of the other end is connected to the internal sound of the front pillar 44. One end meshes with a gear 61 that is rotated by the drive of a motor 60 housed in a dash panel 66.

A rod 45 is connected to the joint 43, and the rod 4
5 is both legs 47a of the bracket foot 47.

Holes 47b and 47b are inserted into holes 47a, and a cam 46 for operating the latch 32 is fixed to the tip thereof.

The dimension of the rod 45 is A dimension larger than the dimension between the legs 47a of the bracket lift 47, as shown in FIGS. 4 and 5.

This means that when the bush pull wire 40 is pulled, the cam 46
latch 32 and latch engagement hole 2 before contacting leg 47a.
This is to release the engagement of 5.

In the figure, 50 is a spacer, and 12c is a washer.

In the conventional device described above, when the occupant 4 is not seated on the seat 3, the slider 10 is located at the front end of the guide rail 9, and when the occupant 4 is seated on the seat 3 and the door 2 is closed, the slider 10 is moved to the gear 6.
1 rotates and the bush pull wire 40. Joint 43.
Rod 45. And the cam 46 moves rearward (to the right in the figure).

(See Figure 4).

Upon further movement, the tank portion 17 of the slider 10 pushes the launch 324 clockwise around the ends 32ak of the launch.

On the other hand, the cam 46 passes through four spaces between the springs 33.

When the latch 32 moves further, the latch 32 returns to its original position at a position where the latch engagement hole 25 and the latch 32 correspond, and the launch engagement hole 25 and the latch 32 engage with each other.

(See Figure 5). Next, door 2' is opened for passenger 4 to exit the vehicle.
ff: The opening gear 61 rotates in the opposite direction from the front, 1st bush pull wire 40, joint 43. Rod 45 and cam 46
Move forward (fixed direction).

At this time, the top 46a of the cam 46 is connected to both ends 3 of the latch 32.
2a' in a clockwise direction, the engagement between the latch engagement hole 25 and the latch 32 is released.

In this state, the slider 10 does not move.

When the bush pull wire 40 continues to move forward, A
When the size is lost, the cam 46 hits the rear leg 47a of the bracket 47, and the cam 46 moves the slider 10 forward.

Therefore, the seat belt 6 is located at a position where it does not interfere with the passenger 4 getting on and off! Move with.

Although the slider 10 is not shown in the drawings, the slider 10 is stopped by means of a stopper provided at the front end and rear end of the guide rail 9, or by means of a hinge.

Among the conventional passive seat belt devices 5 constructed in this way, the slide anchor lock device 13, which is composed of a slider 10 and a housing, is particularly susceptible to the tension of the seat belt 6 from an abnormal direction, for example, from direction F in the diagonally upper left corner of FIG. If this happens, the engagement between the launch 32 and the tongue portion 17 may come off.

The present invention has been improved from point 4 above to prevent vehicle collisions from occurring.
To provide a slide anchor lock device for a pensive belt having a simple and inexpensive structure and capable of surely preventing a tank part from coming off a latch even if belt tension is applied to the tank part from a different direction.

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in FIGS. 6 to 10.

In the embodiment shown in FIGS. 6 to 10, 21 is a slider that slides on the inside of the guide rail 9 attached to the side roof rail or door inner panel of the vehicle body, and this slider 21 is a plate-shaped slider body. 23, the guy provided on the slider main body 23, a plurality of rolling grooves on the inner wall surface 9ak of the trail 9, four rollers 24 in this embodiment, and a latch engagement integrally formed on the slider main body 23. A tank portion 27 consisting of a hole 25 and a chevron-shaped notch 26 formed at an approximately central tip, and the slider main body 2
Anchor 11 provided at the end of belt 6 formed in 3
It consists of a screw hole 28 that is tightened and fixed with a gold bolt 12.

Reference numeral 29 denotes a housing that is fastened and fixed to the end of the guide rail 9 with bolts 30. Fan-shaped shaft support holes 31, 31 are formed on both sides of the housing 29, and the shaft support holes 31.
A latch 32 that engages with the launch engagement hole 25 of the tank portion 27 is rotatably supported by the latch 31 .

This latch 32 is constantly biased in the engagement direction by springs 33,33.

A stopper 34 is integrally formed in the housing 29. The stopper 34 is cut out in a U-shape and bent toward the passageway side of the slider body 23 at the wall portion of the wall with which the slider body 23 slides when inserted.

This stopper 34 has a first stopper part 34a provided at the bending base of the stopper 34 that enters into and comes into contact with the diamond-shaped notch 26 of the tongue part 27, and when a bending load is applied to the tank part 27, A second stopper portion 34b that prevents the tongue portion 27 from disengaging from the latch 32.
Recesses 35, 35 are formed at both ends of the first stopper portion 34a, and an O-ring-shaped elastic member 36 is attached to engage with the recesses 35, 35.

The elastic member 36 has a circular cross section as shown in FIG. 10A and is formed into an elliptical shape. It may be formed into a circular shape with a square cross section, or it may be formed into a rectangular shape with a square cross section as shown in D.

A plate-shaped elastic part may be attached to the part 34a of the warp stopper by adhesion and baking.

In the above configuration, when the occupant 4 sits on the seat 3 and closes the door 2, the inner metal slider 21 of the guide rail 9 slides rearward, and the tank portion 27 of the slider 21 enters into the housing 29 and latches. 324 while rotating in the anti-engagement direction, the square cutout 26 comes into contact with the first stop flange portion 34a of the stopper 34.

In this state, the latch 32 enters and engages the launch engagement hole 25, and the belt 6 restrains the occupant.

Incidentally, even if the tongue portion 27q-shaped notch portion 26 comes into contact with the second stopper portion 34a, the elastic member 36 can prevent the occurrence of a collision sound.

Even if the vehicle is involved in a collision with the tongue portion 27 engaged with the launch 32, a tensile load is applied to the seat belt 6 from an abnormal direction, and the slider 21 is deformed, the tank portion 27 will not be able to reach the stopper 32. The second stoshiba g
h34b and its rotation is prevented.

For this reason, the launch engagement hole 25 of the tank portion 27 and the launch 3
2 will never come out of engagement.

Next, when the door is opened, a disengagement mechanism (not shown) automatically operates to connect the latch engagement hole 25 of the tank portion 27 and the latch 32.
The slider 21 slides forward within the guide rail 9 and releases the occupant from being restrained by the belt.

As is clear from the above description, in the present invention, a substantially U-shaped front notch is formed at the tip of the tank formed on the side of the slider body, and the slider body slides into contact with it when inserted.
By cutting out the wall metal of the Uzing measurement in a roughly U-shape and bending it toward the passage side of the slider body, a first stopper that the tank formed at the tip of the slider body comes into contact with, and a slider body are formed. Since the second stopper is partially provided to prevent the tank from disengaging from the latch when a bending load is applied, it has various effects listed below.

(1) Even if a large tension is applied to the belt as in the case of a collision and the slider is deformed, the tip of the tank is held by the stopper and the engagement between the tongue and the latch will not come off, resulting in stability. expensive.

(2) Providing an elastic member at the portion of the first shishibar that contacts the tank portion of the slider can prevent collision between the tank portion and the stopper when the tongue portion of the slider engages with the latch.

(3) Since the stomper is cut and bent from the housing and formed integrally, the structure is simple and manufacturing and assembly are easy.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of a conventional pensive belt.
3 is an exploded perspective view of the slide anchor locking device shown in FIG. 1, the fourth side, and FIG. 5 is a sectional view of the assembled state of the slide anchor locking device shown in FIG. Fig. 6 is an exploded perspective view of the slide anchor lock device of the present invention, Fig. 7 is a cutaway view showing the assembled warning sound of the present invention, Fig. 8 is a perspective view of the housing, and Fig. 9 is the IX of Fig. 7. 10A, B, C, and D are explanatory views of the elastic member. 6...Belt, 9...Guide rail,
11...Anchor, 12...Bolt,
10, 21...Slider, 25...
Launch engagement hole, 26...Rice-shaped notch, 27.
...Tang part, 29 ...Housing, 3
2...Lunch, 34...Stock bar-5
34a... Part of the first stomper, 34b...
. . . Part of second stopper, 36 . . . Elastic member.

Claims (1)

[Scope of utility model registration request] A tongue metal is formed on the tip of the slider main body that slides inside the guide rail, and a launch engagement hole is formed in the middle of the slider main body, and the slider is attached to the end of the guide rail. a housing into which the main body is inserted;
In a slide anchor locking device including a latch fitting that engages and disengages from the latch engagement hole when the slider body is inserted, a notch of approximately the same shape is formed at the tip of a tank formed on the slider body side, and A first stopper with which a tank formed at the tip of the slider body abuts is formed by cutting out a wall portion of the wall on the housing side that slides into sliding contact when the slider body is inserted and bending it toward the passage side of the slider body; A second stopper that prevents the tank from disengaging from the latch when a bending load is applied to the slider body, and a stopper mold formed from the second stopper, and an elastic member attached to the first stopper. Features a passive belt slide anchor lock device.