JPH0464894B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for adjusting the length of a belt such as a seat belt or a luggage belt, and a length adjusting tool used in this method.

BACKGROUND ART As shown in FIG. 8, a belt (webbing) 1 has been used as a seat belt for an automobile, and its base end can be attached to a retractor (retractor) 2 and pulled out to a desired length. At the same time, the tongue 3 attached to the front end of the belt 1 is inserted into a buckle 4 attached to the vehicle body, and the belt 1 is attached to the body of the occupant by locking the front end of the belt 1 to the buckle 4. It is well known that in the event of a sudden stop or a collision, when a sudden load is applied to the belt 1, the belt 1 is locked in the retractor 2, restraining the occupant's body and protecting the occupant. It is being

Problems to be Solved by the Invention The above-mentioned conventional seat belts do not lock unless a sudden load is applied, such as in the event of a sudden stop or a collision, and therefore, they have the advantage of being able to be easily pulled out from the retractor and put on. However, there was a problem in that when this was used on children, it sometimes did not function effectively as a seat belt.

This is because the child does not sit in the seat for even a moment, and even if the seat belt is fastened snugly, the child will quickly move on the seat and the belt will be pulled out excessively, resulting in a so-called tab-tab situation. This is because it is not possible to completely restrain the child's body in an emergency.

Therefore, when used for children, the winding device 2
It is conceivable to pull out the belt 1 to the maximum extent possible, then adjust the length of the belt 1 to suit the child's body using a belt length adjuster, and have the child wear the belt 1 without being able to pull it out any further. It is difficult to use the conventional belt length adjuster by attaching it to the belt 1 later (because the tongue 3 is attached to the tip of the belt 1), and it is difficult to attach the tongue 3 to the belt 1 on the assumption that this is the case. If a belt length adjuster is attached to the front, it cannot be removed when unnecessary, and the cost of the seat belt also increases.

The present invention solves the above conventional problems and provides a belt length adjuster and a belt length adjustment method that can be easily attached to the belt and adjust the length of the belt as necessary. This was done for the purpose of

Means to Solve the Problem The belt length adjuster is connected to a pair of left and right frame plates arranged parallel to both sides of the width of the belt whose length is to be adjusted, and the length of the pair of frame plates. By placing a first cross bar and a second cross bar extending over one end side and the other end side in the horizontal direction, and placing both ends on the pair of frame plates, A third cross bar is removably attached to one end of the outer frame plate, and both ends are placed on the pair of frame plates, thereby creating a space between the first cross bar and the second cross bar. Consisting of a fourth cross bar that is attached, and a fifth cross bar that is attached between the fourth cross bar and the second cross bar by placing both ends on the pair of frame plates. did.

In addition, the length of the belt can be adjusted by bending a part of the belt upward into an inverted U shape, and then bending the bent part of the inverted U shape toward one end of the belt. A first step of forming an inverted S-shaped bent portion, and arranging a pair of left and right frame plates on both sides of the inverted S-shaped bent portion in the belt width direction, and determining the length of the pair of frame plates. The first
A cross bar is placed in the center of the upper surface of the inverted S-shaped bent portion so as to cross the belt, and a second cross bar that is placed astride the other end side of the pair of frame plates is placed in the inverted S-shaped bent part. a second step of placing the lower bent portion of the letter-shaped bent portion at a position displaced outward from the tip; and a second step of placing the upper bent portion of the inverted S-shaped bent portion on the pair of frame plates; pass the third cross bar through the upper bent portion, place both ends of the third cross bar on the pair of frame plates, and place the third cross bar on the pair of frame plates. Pass the lower bent part of the bent part between the pair of frame plates and lift it above it, pass the fourth cross bar through the lower bent part, and insert both ends of the fourth cross bar between the pair of frame plates. a third step of placing the belt on a frame plate; bending a portion of the belt connected to the upper bent portion downward into a U-shape;
a fourth step of forming an S-shaped bent portion by bending the U-shaped bent portion toward the second crossbar; and bending a lower portion of the S-shaped bent portion; Pass the tip of the crossbar between the second crossbar and the fourth crossbar and between the pair of frame plates and lift it above the crossbar, pass the fifth crossbar through the lower bent part, and a fifth step of placing both ends of the cross bar on the pair of frame plates;
and a sixth step of pulling the upper folded part of the letter-shaped folded part so as to stretch it.

Effect According to the belt length adjustment method of the present invention, if the upper bent part of the S-shaped bent part is pulled so as to be stretched, the belt is wound around the fifth, fourth, and third crossbars. As the belt is tightened and the length of the belt is adjusted, the fifth crossbar is crimped to the second crossbar, and the fourth and third crossbars are crimped to the first crossbar. The belt is held between the bars to prevent the belt from loosening and maintain the belt in an adjusted state.

Furthermore, when the belt between the fourth crossbar and the fifth crossbar is pulled, the upper bent portion of the S-shaped bent portion becomes shorter, and
The belts that were wrapped around the fifth, fourth, and third crossbars loosened. Therefore, these fifth to
If the third crossbar is removed from the bent part, the pair of left and right frames and the first and second crossbars that are straddled between the pair of frames will also be removed from the belt. be.

EXAMPLE Next, the belt length adjustment tool and belt length adjustment method of the present invention will be explained with reference to FIGS. 1 to 7.

FIG. 1 shows a belt length adjuster according to the present invention.
The adjustment tool 11 includes a pair of left and right frame plates 12 and 13 arranged in parallel on both sides in the width direction of the belt whose length is to be adjusted, and these pair of frame plates 12 and 13.
The first
a crossbar 14 and a second crossbar 15,
A third cross bar 16 is removably attached to one end of the frame plate outside the first cross bar 14 by placing both ends on the pair of frame plates 12 and 13; The fourth cross bar 17 is attached between the first cross bar 14 and the second cross bar 15 by placing both ends on the frame plates 12 and 13 of the pair of frame plates 1.
The fifth cross bar 18 is attached between the fourth cross bar 17 and the second cross bar 15 by placing both ends on the base plates 2 and 13.

The pair of left and right frame plates 12, 13 and the first and second
The cross bars 14, 15 are integrally formed of plastic, and the first cross bar 14 is formed at a position set back from one end of the frame plates 12, 13 by a predetermined distance _l1 , and a Both ends of the third cross bar 16 are placed thereon. Also, the first crossbar 14 and the second crossbar 15
There is a necessary and sufficient distance between the
l ₂ is set. Reference numerals 19 and 20 denote left and right bar clamping pieces that are integrally formed on the outside of the pair of left and right frame plates 12 and 13, and are sandwiched between the pair of bar clamping pieces 19 and 20. Both ends of the third, fourth and fifth cross bars 16, 17 and 18 are placed on the frame plates 12 and 13.

Also, the third, fourth, and fifth crossbars 16, 1
7 and 18 are made of plastic of the same quality as the frames 12 and 13, and are formed in an I-shape.
A belt is wound around the belt, and the wide parts 22 and 23 at both ends are placed on the frame plates 12 and 13.

Next, a method of adjusting the belt length using the belt length adjuster 11 having the above structure will be explained. First, as shown in FIG. 2, a part of the belt 1, one end of which is attached to a winding device (not shown) and the other end of which is secured to a buckle, is bent upward into an inverted U shape, and then Next, an inverted S-shaped bent portion 25 is formed by folding the inverted U-shaped bent portion 24 toward one end of the belt. Next, as shown in FIG. The belt is placed at the center of the upper surface of the inverted S-shaped bent part 25 so as to cross the belt, and the second crossbar 15 is placed from the tip of the lower bent part 25b of the inverted S-shaped bent part 25. It is also placed in a position displaced outward. And the above reverse S
The upper bent part 25a and the lower bent part 25b of the letter-shaped bent part 25 are connected to the pair of frame plates 12 and 13 on one side and the other side of the first cross bar 14, respectively.
The third cross bar 16 is passed through the upper bent portion 25a, and the fourth cross bar 17 is passed through the lower bent portion 25b. The wide parts 22 and 23 at both ends are placed on the frame plates 12 and 13, respectively, and the third and fourth cross bars 16 and 17 are made to face each other with the first cross bar 14 sandwiched between them. Next, as shown in FIG. 4, a part of the belt is bent downward into a U-shape, and the U-shaped bent portion 26 is bent toward the second crossbar 15 side. A letter-shaped bent portion 27 is formed. Next, as shown in FIG. 5, the tip of the lower bent part 27b of the S-shaped bent part 27 is placed between the second cross bar 15 and the fourth cross bar 17, and the frame plate 12 and 13 and lift it up above it, pass the fifth cross bar 18 through the lower bent part 27b, and insert the wide parts 22 and 23 at both ends of the fifth cross bar 18 into the frame plates 12 and 13, respectively.
Place it on top. As shown in FIG. 6, when the upper bent portion 27a of the S-shaped bent portion 27 is pulled in the direction of the arrow, the length of the upper bent portion 27a increases.
As a result, the actual length of the belt is adjusted. Then, when the belt reaches the required length and is in a so-called tensioned state, the belt is
At the same time, the fifth crossbar 18 is crimped to the second crossbar 15, and the third and fourth crossbars 1
5 and 16 are press-fitted to the first crossbar 14, and the belt is clamped between these crossbars to prevent the belt from loosening and to maintain the belt in a state where the length is adjusted. Although not shown in the drawings, the circumferential surfaces of the first to fifth crossbars are formed into so-called rough surfaces in order to prevent the belt from loosening.

Since the belt length adjustment tool and the belt length adjustment method of the embodiment have the above-mentioned configuration, belt 1
The length of the belt can be easily adjusted even after the so-called belt 1 is worn by pulling it out from the winding device 2, passing it around the body, inserting and locking the tongue into the buckle, and especially in the case of children. If the belt 1 is pulled out from the take-up device 2 as much as possible and then the length of the belt 1 is tightened to fit the child's body, the belt will not be pulled out any further and loosen even if the child moves, and the child will be protected. This allows for reliable and safe restraint.

Further, in the belt length adjuster 11 of the embodiment, a pair of left and right bar clamping pieces 19 and 20 are provided protrudingly on the outside of the left and right frame plates 12 and 13, and these bar clamping pieces 1
3rd to 5th crossbars 16 to 18 between 9 and 20
Since it can be integrally combined with the frame plates 12, 13, etc. by sandwiching them, it is convenient to store them away when not in use.
It is possible to prevent powder loss as much as possible.

In addition, although the example shows a case where the belt length adjuster and adjustment method of the present invention are used to adjust the length of a seat belt, it can also be used to adjust the length of a luggage belt of a luggage vehicle. good.

Effects of the Invention The length of the belt can be easily adjusted by inserting the tank into the buckle even after the belt is worn.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of the belt length adjuster of the present invention, Figures 2, 3, 4, 5, and 6 are explanatory diagrams showing the steps of the belt length adjustment method. , FIG. 7 is a cross-sectional view of the belt after the length adjustment has been completed, and FIG. 8 is a perspective view of the conventional example. DESCRIPTION OF SYMBOLS 11... Belt length adjuster, 12, 13... Frame plate, 14... First cross bar, 15... Second cross bar, 16... Third cross bar, 17... Fourth cross bar, 18... Fifth crossbar.

Claims (1)

[Claims] 1. A part of the belt is bent upward into an inverted U-shape, and then the bent part of the inverted U-shape is bent toward one end of the belt to form an inverted S-shape. a first step of forming a bent portion in the shape of a shape, and arranging a pair of left and right frame plates on both sides of the inverted S-shaped bent portion in the belt width direction; A first cross bar placed across the belt is placed at the center of the upper surface of the inverted S-shaped bent portion so as to cross the belt, and a first cross bar placed astride the other end of the pair of frame plates is placed across the belt. a second step of placing the crossbar of No. 2 at a position displaced outward from the tip of the lower bent portion of the inverted S-shaped bent portion; and Pass the part between the pair of frame plates and lift it above the frame plate, pass a third cross bar through the upper bent part, and place both ends of the third cross bar on the pair of frame plates. At the same time, pass the lower bent part of the inverted S-shaped bent part between the pair of frame plates and lift it above the bent part, pass the fourth cross bar through the lower bent part, and remove the fourth cross bar. a third step of placing both ends of the belt on the pair of frame plates; and a third step of placing both ends of the belt on the pair of frame plates;
a fourth step of forming an S-shaped bent portion by bending the U-shaped bent portion toward the second crossbar; Pass the tip of the lower bent portion of the section between the second cross bar and the fourth cross bar and between the pair of frame plates and lift it above the bent portion, and place the fifth cross bar on the lower bent portion. and placing both ends of the fifth crossbar on the pair of frame plates.
and a sixth step of pulling the upper bent portion of the S-shaped bent portion so as to stretch it. 2. A pair of left and right frame plates arranged parallel to both sides in the width direction of the belt whose length is to be adjusted, and a frame plate placed across one end and the other end of the pair of frame plates in the length direction. A third cross bar, a second cross bar, and a third cross bar that is removably attached to one end of the frame plate outside the first cross bar by placing both ends on the pair of frame plates. a fourth crossbar attached between the first crossbar and the second crossbar by placing both ends on the pair of frame plates; and a fourth crossbar attached to the pair of frame plates. By placing both ends, the fourth
A belt length adjuster comprising a fifth crossbar attached between the crossbar and the second crossbar.