JPH01247245A - Locking clip for seat belt - Google Patents

Abstract

PURPOSE:To obtain a locking clip made to be adjustable in wound up length little by little by connecting together respective one ends of four stick members to each other arranged in parallel with a connecting member, making the other ends openings and arranging at least three stick members in neighboring. CONSTITUTION:At least four stick members 21-24 are arranged so as to be parallel to each other in the same plane, respective one ends of respective stick members 21-24 are connected to each other with a connecting member 25, the other ends are made in openings 26-28, at least three stick members 21-23 are arranged in neighboring to each other and a locking clip is formed. The clip is attached to a tongue portion of a seat belt with an emergency lock type belt winder, the seat belt is hung over respective stick members for folding back to wind up and on making the seat belt in a drawn out condition, fastening of a protective seat for an infant is performed. On the occasion thereof, winded length of the seat belt can be made adjustable little by little by utilizing respective stick members.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a locking system used to adjust the length of a seat belt when a child protection seat is fastened to a vehicle seat using a seat belt. Regarding clips. Specifically, the present invention relates to a locking clip that can be applied regardless of the installation method of a seatbelt with an emergency locking belt retractor.

[Prior Art] In order to protect infants in the event of a vehicle collision, infant protection seats that can restrain infants are well known. This infant protection seat is placed on a vehicle seat and fixed to the seat with a seat belt attached to the seat.

There are various types of seatbelts, and the typical ones and their characteristics are briefly described in (a) to (e) below.

(b) 3-point seat belt with emergency locking belt retractor (hereinafter abbreviated as ELR) This 3-point seat belt with ELR (when pulled gently under normal conditions) allows the belt to move in and out freely and prevent sudden braking. Only when a shock such as this is detected, the locking mechanism works and locks the belt.

(b) Seat belts with ALR (automatic locking belt retractor) If you stop your hand while pulling out the belt from the belt retractor, the belt will automatically lock and you will not be able to pull out the belt any further. be.

(c) The seatbelt does not have a seatbelt locking mechanism with an NLR (non-locking belt retractor) and functions as a seatbelt only when the belt is fully pulled out.

(d) It is a three-point seatbelt that does not have a manual three-point seatbelt retractor.

(E) It is a two-point seatbelt that does not have a manual two-point seatbelt retractor.

Since the seat belt with ALR described in (b) above can be locked at any position, it is possible to easily hold the infant protection seat in a fixed manner. Also, the above (c) ~ (
Since the seat belt (e) allows manual adjustment of the belt length, it is possible to easily hold the infant protection seat in a fixed manner.

However, the seat belt with ELR described in (a) above can be freely pulled out from the retractor, and when pulled with normal force, it can be pulled out over the entire length of the seat belt, and cannot be locked in the middle. Also, due to its structure, the length of the belt cannot be adjusted. Therefore, when an attempt is made to hold the infant protection seat on the seat with this ELR-equipped seat belt, if a gentle external force acts on the infant protection seat, the seat belt will be pulled out from the retractor, and the infant will be permanently held in place. Can't hold the protective sheet. This is because the emergency locking mechanism does not work if an external force is applied slowly.

Therefore, when securing an infant protection seat to a seat using a seat belt with an ELR, a locking clip 1 shown in FIG. 11 is used. This conventional locking clip 1 includes a pair of parallel parts 2.3, a connecting part 4 connecting the parallel parts 2.3, and protrusions 5.6.7 protruding from both ends of the parallel parts 2.3 in a direction toward each other. It is equipped with .8. This locking clip 1 is attached to a portion of the seat belt 9 near the tongue 10 shown in FIGS. 12(a) and 12(b), and FIG. 12(b) shows the attached state. ), is used to keep the length between the base end (end connected to the vehicle body) 13 of the waist belt 12 and the tongue 10 constant.

According to the locking clip 1, only the shoulder belt 11 is wound around the ELR 14, and the waist belt 12 is not wound around the winding device. The protective sheet 15 can be fixed to the seat 16.

[Problem to be solved by the invention] In this conventional locking clip 1, the waist belt also has an EL
This cannot be applied when the winding is R. (Even if you attach the shoulder belt and waist belt with locking clip 1,
As long as the waist belt can be pulled out from the take-up device, the waist belt will be pulled out when an external force is applied, and the infant protection sheet will no longer be held securely. ) Furthermore, the above-mentioned conventional locking clip 1 cannot be applied to a two-point waist seat belt with an ELR. That is,
Due to the structure of the 2-point waist seat belt with ELR, the length of the belt cannot be manually adjusted. Therefore, in order to securely hold the child safety seat, the seat belt must be fully pulled out from the retractor and the child According to the protective sheet for
Adjust the length of the seat belt with locking clip 1 (
must be shortened). This rocking clip!
Now, the length of the seat belt can be adjusted (shortened) by winding the seat belt between the protrusions 5, 6 and 7, 8 as shown in Fig. 13, but this adjustment amount is covered by the locking clip. It is determined by the size of 1 and is always constant (about 20 cm). Therefore, when the length to be shortened is greater than 20 cm, multiple locking clips 1
Moreover, since the adjustment allowance is in 20 cm increments, it is not compatible with the length to be shortened, and it is often impossible to securely hold the infant protection sheet in a satisfactory condition.

[Means for solving the problem] The seatbelt locking clip of claim (1) has the following features:
At least four rod portions are arranged parallel to each other on the same plane, and a connecting portion connects one ends of these rod portions, and at least three rods among the rod portions are provided. The body parts are provided close to each other, and the other end side of each rod body part is an open mouth.

The locking clip according to claim (2) is the locking clip according to claim (1), in which a closing piece capable of closing the opening on the other end side of the rod portion is detachably provided.

The locking clip according to claim (3) is the locking clip according to claim (1), wherein the closing piece capable of closing the opening on the other end side of the rod body is arranged at the outermost side of the rod body part. It is pivotally attached to the tip of the rod body.

The locking clip according to claim (4) is the locking clip according to claim (2), in which the closing piece and the tip of each rod portion can be engaged with each other.

The locking clip according to claim (5) is the locking clip according to claim (3), in which the closing piece can be engaged with the tip of a rod other than the rod to which the closing piece is pivotally attached. .

[Function] According to the locking clip of claim (5), a seatbelt is hung on any one of the plurality of rods close to each other, and one of the remaining rods is attached to the locking clip. The seat belt can be wound around the locking clip by folding it back at the end of the locking clip.Therefore, the length of the seat belt can be adjusted.

In this case, the adjustment pitch for the length of the seat belt is the rod part on which the seat belt should be hung (hereinafter sometimes referred to as the hanging rod) and the rod part on which the seat belt should be folded back (hereinafter sometimes referred to as the folding rod). ) (equivalent to the circumferential length of one winding). Therefore, different length adjustment pitches can be obtained by using different combinations of hanging rods and folding rods.

When winding the seat belt, since an open opening is formed at the end of the rod portion of the locking clip, the winding operation of the seat belt is extremely easy.

In the locking clip according to claims (1) to (5), it is easy to wind up a large amount of the seat belt, and therefore a three-point seat belt with an ELR on each of the shoulder and waist belts or a three-point seat belt with an ELR on each of the shoulder and waist belts can be used. An infant protection seat can be fixed even with a two-point waist seat belt. In this case,
All you have to do is pull out the entire waist belt from the retractor and wrap the extra length of the seat belt around the locking clip. (3 with ELR on each shoulder and waist belt)
Point-type seat belts have separate shoulder belts and waist belts.
Each piece is folded back at the tongs and sewn securely to the tongs. Therefore, the infant protection seat can be fixed simply by shortening the length of the waist belt. ) In the locking clip of claims (2) and (3), since the opening of the locking clip can be closed with the closing piece, the seat belt can be wrapped to prevent the seat belt from shifting in position.

In the locking clip according to claims (4) and (5), the rod portion can be supported on both sides, and the strength of the locking clip can be increased.

According to the locking clip of claims (1) to (5),
Even if it is a three-point seatbelt with an ELR at the waist and shoulder continuous type (however, the waist belt does not have an ELR), it is attached near the tongue like a conventional locking clip and is attached between the proximal end of the waist belt and the tongue. The length of can be kept constant.

[Example] Examples will be described below with reference to the drawings.

FIG. 1 is a perspective view of a locking clip 20 according to an embodiment of claim (1). This locking clip 20 has four rod portions (in this embodiment, rod portions having a substantially rectangular flat cross-sectional shape) 2 arranged parallel to each other on the same plane.
1.22.23.24, one end of each rod part is connected by a connecting part 25 of the same thickness as the rod part, and an open opening 26, 27, 28 is formed at the other end of each rod part. has been done. In this embodiment, the rod portions 21, 22, and 23 are close to each other with a small interval, and the rod portions 23, 24 are spaced widely. Therefore, the opening 28 is different from the other openings 26, 27.
It is taken larger than that.

This locking clip 20 is made by, for example, as shown in FIG.
The length of the seat belt 9 can be shortened by passing it through and wrapping it between the rod parts 21 and 23. Opening port 28
The reason why the opening openings 26 and 27 are larger than the other openings 26 and 27 is to enable the seat belt to be wound multiple times.

In this embodiment, one seat belt is attached between the rod parts 21 and 23.
Each time the seat belt is wound, the length of the seat belt can be shortened by that much, and the seat belt length adjustment pitch is adjusted by the rod part 21.
．． One winding between 23 and 23 approximately corresponds to the length a. Therefore, the length of the seat belt can be reduced by about nxa. (However, n is an integer.) For example, if a is 20 cm, the length of the seat belt is 20 cm.
It can be shortened by cm, 40cm, 60cm... In this case, when shortening the seat belt by an intermediate value of a, for example, 50 cm, the seat belt 9 may be first wrapped around the rod portion 23 to start wrapping as shown in FIG. 3, for example, by 45 cm. Alternatively, when shortening the seat belt by 55 cm, the seat belt 9 may be hooked onto the rod portion 22 and the winding may be started as shown in FIG. 4.5.

In this way, according to the locking clip 2o, the length of the seat belt can be adjusted by winding the seat belt 9 any number of times until it becomes extremely short. Furthermore, since the openings 26, 27, and 28 are provided at the end of the rod, the winding operation is also easy. As mentioned above, the length adjustment pitch can also be set in small increments (for example, in 5 cm increments).

Furthermore, according to this locking clip 20, as shown in FIG.
By sequentially passing between 23 and 23, the base of the waist belt can be adjusted in the same way as a conventional locking clip, even if the belt is a three-point seatbelt with an ELR (but the waist belt does not have an ELR). Can be used to fix the length of the end and tongue. The reason why the openings 26 and 27 of the rod parts 21 to 23 are narrow is because
This is also to prevent the seat belt 9 from loosening when used in this manner.

FIG. 7.8 is a perspective view showing an embodiment of the locking clip according to claims (2) and (3). This locking clip 30, 40 is provided with a closing piece 31.41 for closing the opening 26, 27, 28. The closing piece 31 is detachable from all the rod parts 21 to 24, and the closing piece 41 is pivoted to the rod part 21 by a pin 42 and can be attached to and removed only from the rod parts 22, 23, and 24. ing. According to such a locking clip 30, 40, it is possible to prevent the seat bell 1- wound around the rod portion from shifting.

Note that the mechanism for engaging the closing pieces 31 and 41 with the tip of the rod is not particularly limited, but for example, as shown in FIG. A mechanism or the like can be adopted in which a recess B is provided in the portion (for example, 21) and the protrusion A is elastically engaged in the recess B.

FIG. 10 is a perspective view of a main part showing an embodiment of claim (4), in which openings 51, 52, 53, 54 are provided in the closing piece 31 to receive the tips of the rod parts 21 to 24. be. When the tips of the rod portions 21 to 24 are inserted into the openings 51 to 54, the rod portions 21 to 24 have a double-sided support structure.
The strength of the locking clip is increased, and the durability of the locking clip is improved. Although not shown in the drawings, the locking clip according to the embodiment of claim (5) is similar to the locking clip 40 shown in FIG. This is what I did.

[Effects] As described above, according to the locking clip of claims (1) to (5), the length of the seat belt can be adjusted (shortened) and the length of the waist belt etc. can be fixed very easily, and the waist belt with ELR can be easily adjusted (shortened). Even if the child's safety seat is fixed.

Further, the length adjustment (shortening) pitch of the seat belt can be made small.

According to the locking clip of claims (2) and (3),
Prevents the seat belt from slipping.

According to the locking clip of claims (4) and (5),
Locking clips can be made stronger.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a locking clip according to an embodiment, Figures 2, 3, 4, 5, and 6 are sectional views showing usage examples, and Figures 7 and 8 are separate. FIG. 9 is a sectional view of a main part of the locking clip, and FIG. 10 is a perspective view of a main part of a locking clip according to yet another embodiment. FIG. 11 is a perspective view of a conventional locking clip, FIG. 12(a), and FIG.
b) and FIG. 13 are explanatory diagrams each showing an example of the use of a conventional locking clip. 20.30.40...locking clip, 21.2
2.23.24... Rod body part, 25... Connection part,
26.27.28...open mouth, 31.41...closed piece. Patent applicant Takata Co., Ltd. Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 11 Figure 12(a) Figure 13

Claims (5)

[Claims] (1) At least four rod portions arranged parallel to each other on the same plane, and a connecting portion connecting one ends of these rod portions, at least three of the rod portions are provided. A locking clip for a seat belt in which book rod portions are provided close to each other and each rod portion has an open opening at the other end. (2) The locking clip for a seat belt according to claim 1, wherein a closing piece capable of closing the opening on the other end side of the rod portion is detachably provided. (3) A closing piece capable of closing the opening on the other end side of the rod portion is pivotally attached to the tip of the rod portion arranged at the outermost side of the rod portion. A locking clip for a seat belt as described in Scope 1. (4) The locking clip for a seat belt according to claim 2, wherein the closing piece and the tip of each rod portion are engageable. (5) Claim 3, wherein the closing piece is engageable with a tip of a rod body other than the rod body part to which the closing piece is pivotally attached.
Seat belt locking clip as described in section.