JP2022187604A - Auxiliary belt device - Google Patents

Abstract

To provide an auxiliary belt device which even an infant or the like can easily wear/take off and to which a body of the infant or the like is surely fixed once worn.SOLUTION: This auxiliary belt device comprises: a backside sheet 14 fitted along the backside reception surface of a vehicle; a shoulder guard member 24; a string member 26; and a buckle 28. The backside sheet 14 is provided with a pair of left and right attached shoulder belts 16. The upper end of the shoulder guard member 24 is set at the position of the backside sheet 14 higher than a shoulder of a user S. The lower end of the string member 26 is set at the position of the backside sheet 14 fitted to a seat lower than a breast of the user S. The buckle 28 includes a buckle body 34 having first to third connection bars 40a, 40b, and 40c for connecting a pair of side walls 38a and 38b to each other, and a lock releasing ring 36 in which a finger can be hooked. The buckle body 34 is attached to the outer surface side or the lower end of the shoulder guard member 24.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an auxiliary belt device used to hold the body in a vehicle seat.

Vehicles for infants such as kindergarten buses (vehicles exclusively used to transport infants) are exempt from the obligation to equip seat belts. This is because, in an emergency, it takes time for an infant to remove the belt by himself and escape, that it is difficult to set a fixed seat belt because the physique of the infant varies depending on the age, and that a kindergarten teacher who rides with the child assists in putting on and taking off the seat belt. This is due to various circumstances such as the occurrence of However, in order to ensure the safety of the infant, it is preferable to fix the infant's body to the seat even simply.

Conventionally, as disclosed in Patent Document 1, for example, a pair of seat back fixing belts vertically spanned over the seat back of a vehicle seat, and a pair of seat back fixing belts provided in the middle of the pair of seat back fixing belts to allow the user to sit on the vehicle seat. There have been vehicle seat restraint belts that include a pair of body restraint belts that restrain the user from both the shoulders and armpits of the user. The body-fixing belt consists of a belt member divided into two parts in the length direction, and a body-fixing belt connecting part is provided near the user's chest so that the split ends can be detachably attached to each other.

The body-fixing belt connecting part is composed of, for example, a ring-shaped fastener attached to one end of the two halves and a hook-and-loop fastener (male/female part) attached to the other end. The ends to which the hook-and-loop fastener is attached are inserted into and folded back, and the male and female portions of the hook-and-loop fastener are attached to each other. Also, by changing the sticking positions of the male and female parts of the hook-and-loop fastener, the fixed length of the body-fixing belt can be adjusted. In addition, it is described that a buckle may be attached to one end of the body fixing belt divided into two parts, and the two ends may be connected by the buckle.

JP 2010-184580 A

The fixing belt for a vehicle seat disclosed in Patent Document 1 has a structure in which the ends of the body fixing belt divided into two parts are connected to each other by fasteners and hook-and-loop fasteners. However, hook-and-loop fasteners tend to vary in the strength of pressure contact between the male and female parts and the area to be attached, so the connection strength of the body fixing belt tends to be unstable, and it is not sufficient in terms of safety. I can not say.

In addition, by adopting a structure in which the two ends of the body fixing belt are connected with buckles, the connection strength of the body fixing belt can be stably secured. However, when wearing the body fixing belt, it is necessary to grasp and position the buckle with one hand, and hold the end of the belt member with the other hand and pass it through the buckle to lock it. surprisingly difficult for In addition, when the body fixing belt is removed, it is required that the infant can easily release the locked state of the buckle, but Patent Document 1 does not particularly consider this point.

The present invention has been made in view of the above-mentioned background art, and is suitable for use in infant-only cars without seat belts. It is an object of the present invention to provide an auxiliary belt device that is securely fixed.

This invention has a back member mounted along the back receiving surface of a vehicle seat, a shoulder support member, a string member and a buckle, and a pair of right and left back members are attached to the back member to fix the shoulders of the user. The shoulder support member has an upper end portion attached to the back member attached to the seat at a position higher than the user's shoulders, the strap member is made of a strap, and the seat The lower end of the back member attached to the buckle is attached at a position lower than the user's chest, and the buckle has first, second and third connecting bars that connect a pair of side walls to each other. , a buckle body having an upper slit opening between the first and second connecting bars and a lower slit opening between the second and third connecting bars; The buckle body is attached to the outer surface side or the lower end of the shoulder rest member,
When in use, the specific portion of the unlocking ring is arranged along the outer surface of the second connecting bar of the buckle body, and the tip of the string member extends from the inner surface of the buckle body. The auxiliary belt device is inserted through the upper slit and pulled out to the inner surface side of the buckle body through the lower slit so as to involve the second connecting bar and the specific portion. Then, the user pulls the tip of the string member to a position where the inner surface side of the shoulder rest member abuts around the user's shoulder. The specific portion is brought into close contact, the string member is locked by sliding friction with the buckle and is prevented from coming off, and the user moves the unlocking ring away from the second connecting bar. By pulling, the tightening by the string member is loosened and the lock of the string member is released.

It is preferable that a pulling ring for hooking a finger when pulling the string member is attached to the tip of the string member. Moreover, it is preferable that the shoulder support member is wider than the string member and made of a material that is less likely to deform.

Further, the present invention has a back member mounted along the back support surface of a vehicle seat, a shoulder support member, a string member and a buckle, and a pair of right and left back members are attached to the back member to support the user's shoulders. A fixed shoulder belt is provided, wherein the shoulder support member is wider than the string member and made of a material that is less likely to deform, and the upper end of the back member is positioned higher than the shoulders of the user on the back member attached to the seat. The inner surface side abuts around the user's shoulder, the lower end of the string member is attached to the back member attached to the seat at a position lower than the user's chest, and the buckle is and an auxiliary belt device that is attached to the outer surface side or the lower end of the shoulder support member and locks a position in the middle of the string member so that the length can be adjusted.

A guide ring is attached to the lower end of the shoulder rest member, the buckle is attached to the outer surface side of the shoulder rest member, and the tip of the string member is guided to the buckle through the guide ring. Anything is fine.

It is preferable that the upper end portion of the shoulder rest member is attached to the back member attached to the seat with a play that allows the shoulder rest member to move vertically or vertically and horizontally. Further, a detachable connecting member may be provided for connecting the pair of shoulder rest members at intermediate positions.

INDUSTRIAL APPLICABILITY The auxiliary belt device of the present invention is suitable for use in an infant car or the like which is not equipped with a seat belt. In addition, since the structure is simple, it can be provided at a low cost, and it is versatile enough to be applied to various seats, it is very easy to spread.

1 is a side view showing a state where an auxiliary belt device according to an embodiment of the present invention is attached to a seat of a vehicle; FIG. FIG. 2 is a plan view showing a state in which the auxiliary belt device of this embodiment is removed from the vehicle seat and unfolded; FIG. 4 is a side view schematically showing enlarged portions A to D of the shoulder belt when the auxiliary belt device of this embodiment is attached to the seat of the vehicle; A plan view (a) and a cross-sectional view (b) along E-E showing a specific configuration example of a buckle body used in the auxiliary belt device of this embodiment, and a side view showing an operation of threading a string member through the buckle body and locking it. (c) It is a side view (d) which shows the operation|movement which releases the latching|locking of the string member by a buckle main body.

An embodiment of the auxiliary belt device of the present invention will be described below with reference to the drawings. The auxiliary belt device 10 of this embodiment is, as shown in FIG. It is provided with a sheet-like back sheet 14 which is a back member mounted along the back receiving surface 12a of the seat 12, and shoulder belts 16 which are attached to the back sheet 14 as a pair on the left and right and fix around the shoulders of the user S. . A user S is an infant, a kindergarten teacher, or the like.

The back sheet 14 includes a substantially rectangular base material 18 made of soft cloth or the like. An upper fixing string 20a is attached to one longitudinal end of the base material 18, and a lower fixing string 20b is attached to the opposite end. installed. A pair of reinforcing belts 22 are sewn vertically to reinforce the portion of the base material 18 to which the two shoulder belts 16 are attached. When the back sheet 14 is attached to the seat 12, the ends to which the upper fixing straps 20a are attached are arranged upward, and the back side of the base material 18 is attached along the back receiving surface 12a and the seat surface 12a.

The shoulder belt 16 is composed of a shoulder support member 24, a string member 26 and a buckle 28, as shown in FIGS. The shoulder support member 24 is a member whose upper end portion is attached to the back seat 14 attached to the seat 12 at a position higher than the shoulders of the user S, and whose inner surface side abuts around the shoulders of the user S, and is a string member. A material that is wider than 24 and less deformable (for example, natural leather or artificial leather used as a shoulder belt or shoulder rest member for a randoseru) is used. A guide ring 30 for guiding the string member 26 is attached to the lower end of the shoulder support member 24 .

The upper end portion of the shoulder support member 24 is attached to the back sheet 14 with a play that allows it to move vertically or vertically and horizontally. Specifically, a fitting 32 made of a frame having two holes in the shape of the letter "H" is prepared, and the upper end of the shoulder rest member 24 is passed through one of the holes of the fitting 32 and wound around the fitting 32. Attach to Then, the part of the reinforcing belt 22 that is not sewn to the base material 18 is passed through the hole of the other hole of the mounting tool 32 so that the mounting tool 32 is held by the reinforcing belt 22 . The upper ends of the shoulder rest members 24 are now attached to the back sheet 14 via the attachments 32, and depending on the length of the portion of the reinforcing band 22 that is not sewn to the base material 18, either vertically or horizontally. You can move up, down, left and right.

The cord member 26 is made of a soft webbing cord, and as shown in FIGS. 2 and 3, the lower end is attached to the back seat 14 attached to the seat 12 at a position lower than the chest of the user S. there is Specifically, the bottom end of the string member 26 is superimposed on a specific position of the reinforcing band 22 and sewn integrally to the base material 18 so as to be fixed. The string member 26 has its tip end passed through the buckle 28 and is pulled out to the outside.

The buckle 28 is composed of a buckle body 34 and an unlocking ring 36, as shown in FIGS. The buckle main body 34 is a member that locks a position in the middle of the string member 26 so that the length can be adjusted, and has first, second and third connecting bars 40a and 40b that connect the pair of side wall portions 38a and 38b to each other. , 40c, with an upper slit 42a opening between the first and second connecting bars 40a, 40b and a lower slit 42b opening between the second and third connecting bars 40b, 40c. . The buckle main body 34 is suspended at the height of the shoulder or chest of the user S on the outer surface side of the middle position in the vertical direction of the shoulder support member 24 so as to be rotatable about the first connecting bar 40a. installed. Although the buckle main body 34 is schematically shown in FIG. 3, it is preferable to use the structure shown in FIGS. 4(a) and 4(b). The buckle 34 shown in FIGS. 4(a) and 4(b) has an auxiliary bar 40d in the vicinity of the first connecting bar 40a. does not significantly affect the

The unlocking ring 36 is a member used when the buckle main body 34 locks the string member 26 and lengthens the shoulder belt 16 by releasing the lock. It is a ring-shaped member of a size that can be hung. For example, metal fittings or resin members called D-cans can be used.

Here, based on FIG. 3, the positional relationship between the buckle main body 34 and the unlocking ring 36 and the connection structure between them and the string member 26 will be briefly described. It is guided to the position of the buckle 28 through a guide ring 30 provided at the lower end of the member 24 . The unlocking ring 36 is arranged such that the specific portion 36a (for example, the straight portion of the D-can) is along the outer surface side of the second connecting bar 40b of the buckle body 34. As shown in FIG. Then, the tip of the string member 26 is inserted through the upper slit 42a from the inner surface side of the buckle main body 34, and passes through the lower slit 42b to the inner surface side of the buckle main body 34 so as to involve the second connecting bar 40b and the specific portion 36a. pulled out to The operation of the buckle 28 locking and unlocking the string member 26 will be described in detail in the method of using the auxiliary belt device 10 .

In addition, a pulling ring 38 such as a D-ring having a size that can be hooked with a finger is attached to the tip of the string member 26 pulled out from the buckle body 34 . A detachable connecting member 40 for connecting the two shoulder rest members 24 to each other is provided in the middle of the pair of shoulder rest members 24 .

Next, how to use the auxiliary belt device 10 will be described. When attaching the auxiliary belt device 10 to the seat 12 of a kindergarten bus or the like, the back side of the back sheet 14 (base material 18) is brought into contact with the back receiving surface 12a and the seat surface 12a, and the upper fixing string 20a is attached to the back receiving surface 12a. The lower fixing string 20b is attached to the leg portion 12d of the seat 12 by screws or bolts (not shown), and the back seat 14 is fixed so as not to be displaced. As an initial state, the length of the shoulder belts 16 is set long enough, and the connection by the connecting member 40 is released so that the two shoulder belts 16 can move freely.

A user S who gets on a kindergarten bus or the like sits on a seat 12 and puts both arms inside two shoulder belts 16, and then shortens the length of the shoulder belts 16 according to his/her physique. Specifically, the buckle 28 is positioned with one hand, and the tip of the string member 26 is pulled with the other hand so that the inner surface side of the shoulder support member 24 is brought into contact with the circumference of the user's S shoulder. Even a small child can easily pull the tip of the string member 26 downward by hooking a finger on a pulling ring 38 attached to the tip of the string member 26.例文帳に追加When this operation is performed, as shown in FIG. 4(c), the second connecting bar 40b is tightened by the string member 26 and the specific portion 36a of the unlocking ring 36 is brought into close contact, and pulled at a predetermined position. When the strap member 26 is stopped, the strap member 26 is locked by sliding friction with the buckle 28 and is firmly prevented from slipping off, and the shoulder belt 16 is held at an appropriate length.

When shortening the length of shoulder belt 16, positioning of buckle 28 is accomplished by grasping shoulder member 24 at a specific location (preferably near buckle 28) with one hand and, if desired, It is advisable to put the fingers of that hand on the buckle 28 . For example, if the buckle 28 has a small profile, it may be difficult to grip the buckle 28, but the shoulder member 24 to which the buckle 28 is attached is relatively large and solid, allowing the shoulder member 24 to be held in place. , the buckle 28 can be easily positioned even by an infant.

After setting the shoulder belt 16 to an appropriate length, the two shoulder rest members 24 are connected to each other by a connecting member 40 to prevent the shoulder belt 16 from opening laterally and falling off. Thus, the shoulder belt 16 of the user S is firmly fixed around the shoulder, and the kindergarten bus or the like departs in a state in which safety is ensured.

When the kindergarten bus or the like arrives at the destination, the user S stands up from the seat 12 and gets off the bus. lengthen the Specifically, one hand positions the buckle 28 in the same manner as described above, and the other hand puts a finger on the unlocking ring 36 and pulls it upward. When this operation is performed, as shown in FIG. 4(d), the buckle 28 automatically rises to change the arrangement of the second and third connecting bars 40b and 40c, thereby sliding the cord member 26 between them. The dynamic friction is reduced and the engagement of the retainer is released, so that the string member 26 can be easily pulled out. In this way, the action of lengthening the shoulder belt 16 can be easily performed by even an infant, as is the action of shortening the length.

When the shoulder belt 16 is lengthened, the fixation around the shoulder is released, so that the user S can open the shoulder belt 16 to the left and right to pull out both arms, stand up from the seat 12, and get off.

As described above, the auxiliary belt device 10 is suitable for use in infant-only vehicles that are not equipped with seat belts. be done. In addition, since the structure is simple, it can be provided at a low cost, and it is versatile enough to be applied to various seats 12, it is very easy to spread.

The auxiliary belt device of the present invention is not limited to the above-described embodiments, and can be applied to vehicles for picking up and dropping off the elderly and handicapped, as well as general buses and other vehicles. can also be used.

In addition, the shoulder belt 16 of the auxiliary belt device 10 described above has two distinctive features for facilitating length adjustment. One is that the shoulder rest member 24 is wider than the string member 26 and is made of a material that is less likely to deform, so that the buckle 28 can be easily positioned by gripping the shoulder rest member 24. The point is that the locking ring 36 is provided so that the locking of the string member 26 can be easily released. It is preferable to implement both of these two measures, but if necessary, only one of them may be implemented. Further, the pulling ring 38 provided for facilitating the pulling of the string member 26 when shortening the shoulder belt 16 may be omitted if not necessary.

The buckle 28 or the buckle main body 36 is attached to the outer surface side of the shoulder support member 24 in the middle of the vertical direction (the height of the user S's shoulder or chest). may be attached to the lower end of the shoulder rest member 24 if the position is easily accessible to the user S (at the chest height of the user S). In this case, the guide ring 30 can be omitted.

The buckle 28 shown in FIG. 4 also includes second and third connecting bars 40b. The characteristic shape and arrangement of 40c controls sliding friction with the belt (string member 26) and is suitable for the auxiliary belt device of the present invention. However, substantially the same effect can be obtained even if the shape and arrangement of the second and third connecting bars are not exactly the same as in FIG. Also, if the handling operation during use is easy, a structure combining a buckle and a string member having completely different structures may be used. For example, a configuration is conceivable in which a buckle having a structure for locking an elongated string and an elongated string (string member) are combined.

The auxiliary belt device 10 is provided with a connecting member 40 to prevent the shoulder belt 16 from opening laterally, but the connecting member 40 can be omitted if necessary. In addition, the upper end of the shoulder support member 24 is attached with a play that allows it to move vertically or horizontally and horizontally so that the user S does not feel cramped when the shoulder is fixed. , the structure of the part with play may be different from the structure described above, and it is also possible to fix without play.

The configuration of the back member is not limited to the configuration of the back seat 14 described above, and can be appropriately changed according to the form of the seat 12 . In the case of the back sheet 14, it is assumed that the back seat 14 is mounted so as to straddle the back receiving surface 12a and the seat surface 12b of the seat 12. At both ends of the seat 12, fixing straps 20a and 20b for binding to the handle 12c and the leg 12d of the seat 12 are provided. However, when the back receiving surface 12a and the seat surface 12b of the seat 12 are discontinuous, it is possible to adopt a structure in which only the back receiving surface 12a is mounted. Further, when the base material 18 alone has sufficient strength, the structure in which the base material 18 is reinforced with the reinforcing band 22 can be omitted. In addition, the structure of the portion where the back sheet 14 is fixed to the seat 12 can be freely changed.

10 Auxiliary belt device 12 Seat 12a Back receiving surface 14 Back seat (back member)
16 Shoulder belt 24 Shoulder support member 26 String member 28 Buckle 30 Guide ring 34 Buckle main body 36 Unlocking ring 38 Pulling rings 38a, 38b Side wall (buckle main body)
40a first connecting bar (buckle body)
40b Second connecting bar (buckle body)
40c Third connecting bar (buckle body)
42a upper slit (buckle body)
42b lower slit (buckle body)

Claims (7)

A back member fitted along the back support surface of a vehicle seat, and shoulder belts having a shoulder support member, a string member and a buckle, attached to the back member in a pair on the left and right sides to fix around the shoulders of a user. with
The shoulder support member has an upper end attached to the back member attached to the seat at a position higher than the user's shoulders,
The string member is made of a belt, and the lower end is attached to the back member attached to the seat at a position lower than the user's chest,
The buckle has first, second and third connecting bars interconnecting a pair of side walls, an upper slit opening between the first and second connecting bars, and second and third and an unlocking ring on which a finger can be hooked. The buckle body is attached to the outer surface or the lower end of the shoulder rest member is attached and
When in use, the specific portion of the unlocking ring is arranged along the outer surface of the second connecting bar of the buckle body, and the tip of the string member extends from the inner surface of the buckle body. An auxiliary belt device, wherein the auxiliary belt device is inserted through an upper slit and pulled out to the inner surface side of the buckle body through the lower slit so as to involve the second connecting bar and the specific portion. 2. The auxiliary belt device according to claim 1, wherein a pulling ring is attached to the leading end of said string member for hooking a finger when pulling said portion. 3. The auxiliary belt device according to claim 1, wherein said shoulder support member is wider than said string member and made of a material that is less likely to deform. A back member fitted along the back support surface of a vehicle seat, and shoulder belts having a shoulder support member, a string member and a buckle, attached to the back member in a pair on the left and right sides to fix around the shoulders of a user. with
The shoulder support member is wider than the string member and is made of a material that is less likely to deform. around the shoulder of the person,
The lower end of the string member is attached to the back member attached to the seat at a position lower than the user's chest,
The auxiliary belt device, wherein the buckle is attached to the outer surface side or the lower end portion of the shoulder rest member, and locks a position in the middle of the string member so that the length thereof can be adjusted. A guide ring is attached to the lower end of the shoulder rest member, the buckle is attached to the outer surface side of the shoulder rest member, and the tip of the string member is guided to the buckle through the guide ring. 5. The auxiliary belt device according to any one of claims 1 to 4. 6. The shoulder rest member according to any one of claims 1 to 5, wherein the upper end portion of the shoulder rest member is attached to the back member attached to the seat with a play that allows the shoulder rest member to move vertically or vertically and horizontally. auxiliary belt device. 7. The auxiliary belt device according to any one of claims 1 to 6, further comprising a detachable connecting member for connecting the pair of shoulder rest members at intermediate positions.

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