JPH0530542Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a shoulder belt anchor device.
In particular, the slider to which the seat belt is connected can be easily moved with respect to the base member fixed to the center pillar of the vehicle, and the slider can be adjusted to prevent rattling and noise when moving. This invention relates to a shoulder belt anchor device.

[Conventional technology]

Conventionally used seat belt devices have configurations as shown in FIGS. 4 to 6.

First, to explain the above-mentioned conventional device, the bolt hole 4 is used for the center pillar A of the vehicle, etc.
The base member 1 fixed by bolts 6 has guide rails 2 protruding from both sides thereof, and locking holes 5, 5... are provided at predetermined intervals on the sides of the guide rails 2. ing.

The anchor block 30, which is slidably provided on the base member described above, has a lock pin 13 protruding from its surface, and is further provided with a lever pawl 31 on the side.
This lever pawl 31 is configured such that it is removed from the locking hole 5 of the guide rail 2 by rotating the operating knob 15 of the lock pin 13, and is fixed in the locking hole 5 when the lock pin 13 is returned. It is becoming.

In addition to this, the notch 3 provided on the side
2 is adapted to be engaged with a locking pawl 16 of the slider 10, as will be described later, so that the anchor block 30 and the slider 10 are moved together.

The slider 10 has a boss through which the lock pin 13 is inserted as described above, and a slip joint 2.
Anchor bolt insertion hole 14 for locking the shoulder belt anchor 22 of No. 4, and the locking claw 16
have.

When the shoulder belt 25 is locked and adjusted via the slip joint 24 fixed to the slider 10, the operation knob 15 is
to operate lock pin 13 and slider 1.
0 is moved up and down.

Next, as shown in FIG. 6, the device proposed by the present applicant in Japanese Utility Model Application No. 63-35650 has flanges 3 provided at the upper and lower parts of the base member 1 so as to protrude inwardly from the guide rail 2. , 3 and the slider 10 are connected by springs 8, 9, so that when the slider or the like is released, the operating load applied to the upper and lower sides of the shoulder belt anchor is equalized.

Furthermore, as disclosed in Japanese Utility Model Application No. 60-24661, it is known that the anchor block is provided with slide shoes on both sides so as to be able to slide within the guide rail.

Furthermore, as shown in FIG. 8, bushes 11' having a U-shaped cross section are provided on the edge-shaped guide rails 2 provided on both sides of the base member 1, and the sliding portions 12 on both sides of the slider 10 are bent inward. letter shaped bush 1
1' is known.

[Problem that the invention attempts to solve]

However, in the conventional devices shown in FIGS. 4 and 5 above, when moving the anchor block up and down, the lever pawl is pulled out directly by operating the operation knob, or indirectly pulled out by sliding it. It is necessary to pull out the claw, and at that time, the retracting force of the seat belt retractor and
The weight of the slider, slip joint, etc. will force it downward.

In addition, when performing the above operations, the slider or anchor block is not held securely, so naturally, when performing the above operations, if the grip strength of the fingers is weak, , there was a problem where it would be pulled down strongly and make strange noises.

Furthermore, the moment the lever pawl is pulled out, the slider is subject to a large downward load and feels like it is being pulled down strongly, so there was a problem in that the vertical adjustment of the slip joint did not have a good feel.

Furthermore, the slider shown in Fig. 6 can also be prevented from being pulled down when the slider is unlocked, but in the slider that surrounds the guide rail, there is a gap between the sliding surfaces of the guide rail and the slider, so the slider There was a problem in smoothly adjusting the vertical position.

Furthermore, even with the edge-shaped guide rail shown in FIG. 8, there was a difficult problem of how much space should be provided between the bushing 11' and both sides of the slider. If the gap is made larger in order to make the gap smoother, it causes rattling, while if it is made smaller, the gap becomes less operable and may generate abnormal noise.

Furthermore, in the device described in the above-mentioned Japanese Utility Model Publication No. 60-24661, in which slide shoes are mounted on both sides of the anchor block, the upper and lower sliding surfaces are formed in a wave shape in the longitudinal direction. Slider 38
When sliding, the side surfaces are in surface contact with the U-shaped sliding surfaces 42a and 42b at both ends of the guide rail 42, and the plurality of wave-shaped peaks of the upper and lower sliding surfaces are also in surface contact, so that the shape shown in FIG. Similar to what is shown in
There is a difficult problem in deciding how much space should be provided between the slide shoe 58 and the inside of both sides of the guide rail 42.In order to make the space smoother, if the space is made larger, it will cause wobbling, and if it is made smaller, it will be difficult to operate. This had poor performance, and there was a possibility that abnormal noises would occur.

This invention solves the above-mentioned problems with conventionally used devices.In order to improve the usability of the slider, there is no rattling when adjusting the slider up and down, and the slider slides smoothly. It is an object of the present invention to provide an adjustable shoulder belt anchor device that allows the shoulder belt to be anchored.

[Means for solving problems]

In order to achieve the above object, the present invention includes a base member that is fixed to the center pillar of a vehicle, and an anchor block that is slidably attached to the edge-shaped guide rail of the base member and can be locked in an appropriate position. In an adjustable shoulder belt anchor device with an integrally provided slider, edge-shaped guide rails 2 formed on both sides of the base member 1;
are slidably held by a pair of elastic bushes 11 each having a U-shaped cross section with one edge bent inward, and the pair of bushes 11 are attached to both sides of the slider 10. It is characterized by being fitted and fixed within the U-shaped sliding portions 12 formed in the .

[Effect]

Next, the operation of the adjustable shoulder belt anchor device of the present invention will be explained.

Since the present invention has the above-mentioned configuration, when the anchor block and the slider are released for vertical adjustment of the slider, the slider is slidably attached to the base member fixed to the center pillar of the vehicle, and can be adjusted as appropriate. A slider slidably provided on the base member and integrated with an anchor block that can be locked in position can be adjusted up and down. When adjusting the shoulder belt position to suit the occupant in this way,
The slider slides easily by the sliding action of a pair of bushes that sandwich the edge-shaped guide rails formed on both sides of the base member fixed to the center pillar by the elasticity of the bushes themselves. This will further improve the operability of adjusting the slider up and down.

〔Example〕

The shoulder belt anchor device of the present invention will be explained with reference to the illustrated embodiment.

As shown in FIG. 1, in the shoulder belt anchor device of the present invention, a base member 1 is inserted into the center pillar A of the vehicle through a bolt hole 4 and bolts 6, etc., as in conventional devices. It is fixed by a fixing means. In addition, code 1
Numerals 8 and 19 are claws and small holes for positioning.

Further, the structure of the slider 10 is similar to that described in the conventional example, so that the locked state can be released by rotating the lock pin 13 using the operation knob 15 and retracting the lever pawl 31. ing.

A shoulder belt anchor 22 is secured to the slider 10 through the insertion hole 14 of the anchor bolt 17, and a seat belt 25 is supported by the shoulder belt anchor 22 through the slip joint 24. It is becoming more and more like this. Note that the reference numeral 7 is a cover of the shoulder belt anchor device.

In the shoulder belt anchor device of the present invention, as shown in FIG.
A pair of bushes 11 each having a shape in which two end edges 11c are bent inward are slidably held by the end edges 11c.
1 are fitted and fixed inside U-shaped sliding portions 12 formed on both sides of the slider 10, respectively.

Next, the bush 11 of the present invention will be explained in more detail. It is made of hard or soft plastic or soft metal, and is inserted into the edge-shaped guide rail part 2 from the side of the edge-shaped guide rail part 2. The edge-shaped guide rail part 2 is slidably held by its own elasticity.

Further, the U-shaped sliding portions 12 formed on both sides of the slider 10 surround this bushing 11, and the inner surface thereof has a side edge 11b and one end edge 11a of the U-shaped bushing 11 in cross section. face to face contact,
The bush 1 is in line contact with the other edge 11c.
1 is fitted and fixed inside the U-shaped sliding portions 12 on both sides of the slider 10.

Therefore, when adjusting the shoulder belt up and down,
When the lock pin 13 is actuated by the operating knob 15 to retract the lever pawl 31 to release the fixation of the anchor block and slider 10, the edge-shaped guide rail 2 of the base member 1 is slidably held. The bushes 11 are located within the U-shaped sliding portions 12 on both sides of the slider 10.
is in surface contact with the other inwardly bent edge 11c.
Since the slider 10 is fitted and fixed in line contact with the slider 10, when adjusting the slider 10 up and down, the slider 10 slides smoothly on the edge-shaped guide rail 2 using the deflection of the bush 11.
Since the bushing 11 is fitted and fixed so that the three surfaces of the U-shaped sliding portion 12 formed on both sides are always in pressure contact with each other, rattling and abnormal noise will not occur.

Next, FIG. 7 shows another embodiment of the present invention, in which side edges 11 of a pair of bushes 11 are made of the same material as the embodiment shown in FIG.
b and one end edge 11c are in surface contact with the inner surfaces of both U-shaped sliding parts 12 of the slider 10, and the other end edge 11a
Since these are fitted and fixed in a line contact state, when the slider 10 slides, the same effect as in the embodiment shown in FIG. 2 can be obtained.

[Effect of idea]

Since the shoulder belt anchor device of the present invention has the above-described configuration, when the slider, etc. is released from its fixation, the slider, etc. can smoothly slide up and down, and when adjusting up and down, The edge-shaped guide rails 2 formed on both sides of the base member 1 are bent inward of elastic bushes 11 that are fitted and fixed in the U-shaped sliding parts 12 on both sides of the slider 10. Since the edges are in line contact and the bush 11 slides while being clamped by its own flexure, the slider 10 equipped with the bush 11 can slide smoothly, and the U-shaped sliding portions 12 and the bush 11 on both sides can slide smoothly. The accuracy of the gap is no longer required, the design is easy, rattling and abnormal noise can be prevented, and the seatbelt can be easily and easily set during its operation.

Therefore, in the shoulder belt anchor device of the present invention, the shoulder belt can be easily set in a predetermined position, and the operability and feeling at that time are further improved. .

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an exploded perspective view showing the configuration of the shoulder belt anchor device of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. FIG. 4 to FIG. 6 are exploded perspective views showing the conventional example; FIG. 7 is a sectional view of another embodiment of the present invention; FIG.
The figure is a sectional view of a conventional sliding part. 1...Base member, 2...Guide rail, 4...
... Bolt hole, 6 ... Bolt, 10 ... Slider, 11 ... Button, 12 ... Sliding part, 13 ...
...Lock pin, 14...Anchor bolt insertion hole, 1
5...Operation knob, 17...Anchor bolt, 22...
...Shoulder belt anchor, 24...Slip joint, 25...Seat belt.

Claims (1)

[Claims for Utility Model Registration] (1) A base member fixed to the center pillar of a vehicle, and an anchor block that is slidably attached to the edge-shaped guide rail of the base member and can be locked in an appropriate position. In an adjustable shoulder belt anchor device equipped with an integrally provided slider, the edge-shaped guide rails 2 formed on both sides of the base member 1 are elastic and have one end having a U-shaped cross section. A U-shaped sliding part 1 that is slidably held by a pair of bushes 11 whose edges are bent inward, and the pair of bushes 11 are formed on both sides of the slider 10.
2. An adjustable shoulder belt anchor device, characterized in that each shoulder belt anchor device is fitted and fixed in the other. (2) The adjustable shoulder belt anchor according to claim 1 of the utility model registration claim, characterized in that a long hole is formed in the center pillar of a vehicle, and a base member, etc. is provided inside the center pillar. Device.