JP7089446B2 - Shoulder belt structure - Google Patents

Description

The present invention relates to a shoulder belt of a seat and relates to a structure used for adjusting the length of the shoulder belt.

A pair of shoulder belts that restrain the child's shoulders, a mechanism that adjusts the length of the shoulder belt that extends from the backrest, and a pad that is attached to the shoulder belt to relieve the pressure applied to the child's shoulders. As a child seat comprising the above, for example, the one described in Japanese Patent Application Laid-Open No. 2016-097758 (Patent Document 1) is known.

Japanese Unexamined Patent Publication No. 2016-097758

The pad is connected to the child seat body with a connecting material such as a band, and the shoulder belt is movable relative to the pad. The operation of increasing the length of the shoulder belt is performed by the operator of the child seat (mainly the guardian of the child), and is performed by pulling the shoulder belt forward from the main body of the child seat.

However, since the shoulder belt is covered with a pad, it is difficult to pull the shoulder belt forward with a conventional child seat. In addition, it is not easy to pull out the shoulder belt while the child is seated on the child seat body.

In view of the above circumstances, it is an object of the present invention to provide a structure that makes it easier to pull out the shoulder belt than before.

For this purpose, the shoulder belt structure according to the present invention includes a belt length adjusting mechanism provided in a child's seat and a pair of shoulder belts pulled out from the belt length adjusting mechanism and adjusted in length by the belt length adjusting mechanism. And a pad that is slidable on the shoulder belt and abuts on the shoulder of the child sitting on the child's seat, and a first connecting material that connects one end to the child's seat and the other end to the pad. It includes a drawer that is slidably attached to the shoulder belt, and a second connecting material that is coupled to the pad or the first connecting material at one end and to the pulling tool at the other end.

The drawer is used to pull out the shoulder belt. According to the present invention, the shoulder belt can be easily lengthened by the operator grasping the drawer and pulling it forward. Further, since the drawer is suspended by the second connecting member, it does not fall off to the seat surface of the child's seat.

The first connecting material and the second connecting material may be flexible as long as they are flexible, and the shape and material are not limited. The first connecting material and the second connecting material are made of, for example, a cloth band. As one aspect of the present invention, the second connecting material is elastically stretchable. According to such an aspect, the moving area of the drawer can be increased, and the operation of lengthening the shoulder belt becomes easier. In another aspect, the first connecting material and the second connecting material are made of a cloth material that is not easily elastically deformed.

The shape of the pad is not particularly limited, but an elongated shape extending along the shoulder belt is preferable. As a preferred aspect of the present invention, the pad has one end on the backrest side of the child's seat and the other end on the opposite side of the backrest, the other end being from the medial end abutting the child's shoulder and from the child. Including the outer end on the distant side, the inner end is formed in a tongue shape so as to protrude from the outer end, and the inner end is interposed between the child's shoulder and the drawer at the original length of the second connecting material. do. According to this aspect, the drawer can be prevented from directly hitting the child's shoulder. Further, the drawer is arranged at the other end of the pad and is exposed to the outside. Therefore, the operator can easily grasp the drawer.

As a more preferable aspect of the present invention, a third connecting material for connecting the first connecting materials to each other is further provided. According to this aspect, the distance between the pair of pads is restricted and each pad properly contacts the child's left and right shoulders. Also, if the shoulder belt is passed through a shoulder belt through hole formed in the backrest of the child's seat, the pad can be pulled into the belt length adjustment mechanism by adjusting the shoulder belt to be shorter. Can prevent the inconvenience of being drawn to the rear of the backrest portion through the shoulder belt through hole. As another aspect, it is not necessary to provide the third connecting material.

As one aspect of the present invention, the inner portion of the pad that comes into contact with the child's shoulder is subjected to a slipping process. According to this aspect, the pad can firmly grip the child's shoulder. The slipping process is, for example, a rubber layer formed on the surface of the inner portion of the pad.

According to the present invention, the length of the shoulder belt can be easily adjusted by the operator pulling the drawer.

It is a perspective view of the child seat which comprises this invention. It is a perspective view of the frame of a child seat. It is a front view which shows the backrest part and a slide member of a child seat taken out, (A) shows the lower position of a slide member, (B) shows the upper position of a slide member. It is a rear view which shows the rear surface of the frame portion of a backrest portion, and the rear surface of the frame portion of a slide member. It is a schematic diagram which shows the arrangement of a belt. It is a schematic diagram which shows the arrangement of a belt, and shows the operation of pulling out a shoulder belt. It is a perspective view which shows the pair of shoulder belts and a pair of pads of a child seat taken out. It is a front view which shows taking out a pair of pads of a child seat. It is an exploded view which shows by taking out a pair of pads of a child seat.

Embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals and the description thereof will not be repeated.

A child seat 1 according to an embodiment of the present invention will be described with reference to FIG. In the description of the child seat 1, the front-back direction corresponds to the front-back direction of the child sitting on the child seat 1. The width direction corresponds to the left-right direction of the child sitting on the child seat 1 or the lateral direction of the belt. The inside corresponds to the side facing the child sitting in the child seat 1. The outside corresponds to the side opposite to the child sitting in the child seat 1.

The child seat 1 according to the present embodiment is a child seat device that is arranged on the seat of a car and allows children such as babies and toddlers to ride safely. The child seat 1 includes a base body 10 and a seat body 11. The base body 10 is placed on the seat of a passenger car and supports the seat body 11 from below. The seat body 11 is attached to the upper side of the base body 10 and is rotatably supported with respect to the base body 10.

A child sits on the seat body 11. For this reason, the seat body 11 is also referred to as a child's seat, and has a seat surface portion 2 that supports the buttocks of the child and a backrest portion 3 that stands up from behind the seat surface portion 2 and supports the back of the child. Further, a covering member 20 for the seat surface portion 2 is detachably attached to the frame of the seat surface portion 2. A covering member 30 for the backrest portion 3 is detachably attached to the frame of the backrest portion 3. These covering members 20 and 30 are formed of a soft cloth member, for example, a cushion material or a mesh material.

The backrest portion 3 is provided with a slide member 4 that overlaps with the backrest portion 3 and is slidable in the vertical direction. The slide member 4 includes a headrest 5 that supports the child's head, and can be fixed at an arbitrary height position by a locking mechanism (not shown). As shown in FIG. 1, in the slide member 4, the front surface of the slide member 4 may be covered with the cover member 70. The backrest portion 3 can be reclined.

The child seat 1 is provided with a plurality of belts for restraining the child's body. The belt provided on the backrest portion 3 includes a pair of shoulder belts 12 that restrain both shoulders of the child. The shoulder belt 12 is arranged so as to penetrate the slide member 4 and the backrest portion 3. One end of the shoulder belt 12 is connected to a belt length adjusting mechanism (not shown) on the rear surface side of the backrest portion 3. The intermediate region and the other end of the shoulder belt 12 are arranged on the front surface side of the backrest portion 3.

Further, the belts provided on the seat surface portion 2 extend between the crotch belt 13 extending between the thighs of the child seated on the seat body 11 and the seat body 11 so as to cross the seat body 11 in the left-right direction to restrain the child's waist. Includes waist belt 14. One end of the crotch belt 13 is fixed to the central portion of the seat surface portion 2 in the width direction. The waist belts 14 are arranged on the left and right sides, and one end of each waist belt 14 is fixed to both side portions of the seat surface portion 2 in the width direction.

The other ends of these belts 12, 13 and 14 are connected to each other near the abdomen of the child by a connecting tool 15 provided at the tip of the crotch belt 13.

The relationship between the backrest portion 3 and the slide member 4 and the shoulder belt 12 will be described. FIG. 2 is a perspective view of the frame of the child seat 1 according to the present embodiment, and shows a state in which the covering members 20 and 30 are removed. FIG. 3 is a front view showing the frame and the slide member 4 of the backrest portion 3 of the child seat 1 according to the present embodiment taken out, and FIG. 3 (A) shows the slide member 4 fixed at the lowest height. 3 (B) is a front view showing a state in which the slide member 4 is fixed at the highest height.

The slide member 4 is slidably attached to the frame of the backrest portion 3. The slide member 4 is slidable at an arbitrary height position, and is fixed at an arbitrary height position by a lock mechanism (not shown).

A pair of shoulder belt through holes 43 through which the pair of shoulder belts 12 pass is formed in the slide member 4 on the left and right. Each shoulder belt through hole 43 is a horizontally long cross section extending in the width direction of the seat body 11, and corresponds to the cross section of the shoulder belt 12.

A pair of openings 32 extending in the vertical direction are provided at positions of the backrest portion 3 facing the shoulder belt through holes 43. As a result, each shoulder belt 12 passes through the cover member 70 of the slide member 4, the shoulder belt through hole 43 of the slide member 4, and the opening 32 of the backrest portion 3.

FIG. 4 is a rear view showing the rear surface of the backrest portion 3. One end portion 12t of the shoulder belt 12 through which the shoulder belt through hole 43 is passed extends upward from the shoulder belt through hole 43, and by being hung on the pin 33, the end portion 12t is turned downward from the pin 33 and further extends. Next, the two end portions 12t and 12t are connected to one adjustment belt 16 below the slide member 4. Therefore, the two end portions 12t, 12t and one adjustment belt 16 are arranged in a Y shape. However, in order to facilitate understanding of the drawings, in FIG. 4, a Y-shaped connecting region is omitted, and only a part of each belt is shown.

The pin 33 is attached and fixed to the backrest portion 3 above the opening 32. Further, the pins 33 are arranged in the left side region and the right side region of the backrest portion 3, respectively, and extend in the width direction of the backrest portion 3.

Note that FIG. 4 shows a rear member 44 which is arranged behind the opening 32 and has a shape larger than the width dimension of the opening 32. Shoulder belt through holes 43 are formed through the left and right regions of the rear member 44, respectively.

5 and 6 are schematic views of the arrangement of the belts as viewed from the side of the seat body. The middle portion of the adjustment belt 16 is passed through the seat surface portion 2 and extends in the front-rear direction. The rear end of the adjustment belt 16 projects rearward from the seat surface portion 2 and is connected to the two end portions 12t and 12t. .. The front end of the adjustment belt 16 is passed through a belt lock mechanism 17 provided in the front region of the seat surface portion 2. The belt lock mechanism 17 locks an arbitrary position of the adjustment belt 16. Further, the belt lock mechanism 17 is provided with an operator 18, and the lock of the adjustment belt 16 is released while the operator (guardian of a child) of the child seat 1 operates the operator 18. Then, the adjusting belt 16 can be moved backward with a slight force, and the pair of shoulder belts 12 is lengthened. Alternatively, when the operator pulls out the front end 16f of the adjustment belt 16 while operating the operator 18, the adjustment belt 16 moves forward and the pair of shoulder belts 12 is shortened. The operator 18 is a button or lever, and the adjusting belt 16 is allowed to move freely with respect to the belt lock mechanism 17 while the operator presses the button or tilts the lever.

Thus, the adjusting belt 16 and the belt locking mechanism 17 constitute a belt length adjusting mechanism. The length of the pair of shoulder belts 12 is adjusted by the belt length adjusting mechanism. In the present embodiment, the belt lock mechanism 17 locks the adjustment belt 16 while the operator 18 is not operated, that is, in the normal state. Therefore, the adjusting belt 16 is fixed so as not to move relative to the belt lock mechanism 17.

As shown in FIG. 1, a pad 21 is attached to each shoulder belt 12.

7 to 9 are views showing a pair of pads 21 and 21 taken out. The pad 21 is, for example, a cloth material sewn into a cylindrical shape. Alternatively, the pad 21 may be a cloth material folded in half as shown in FIG. The pad 21 is provided on the upper end portion 21u near the backrest portion 3 (FIG. 5), the lower other end portion (outer end portion 21t, inner end portion 22t) far from the backrest portion, and the inner portion that comes into contact with the child. It has a cushioning material 22 provided and an outer portion 21v far from the child.

The cushion material 22 and the outer portion 21v form a cloth cylinder (and a cylinder hole). The shoulder belt 12 extends through the tubular hole of the pad 21. Therefore, the pad 21 is relatively slidable along the shoulder belt 12. The cushion material 22 sewn on the inner portion of the pad 21 (the planar portion that abuts on the child's shoulder) softens the contact between the shoulder belt 12 and the child's shoulder. It should be understood that the sewing used in the present specification is one aspect of coupling or connection.

The pad 21 is connected to the slide member 4 via the first connecting member 23. The first connecting member 23 extends in the vertical direction along the shoulder belt 12, and the lower end 23d of the first connecting member 23 is sewn to the upper one end of the pad 21. The first connecting member 23 is a belt narrower than the shoulder belt 12, is passed through the shoulder belt through hole 43 described above, and extends to the rear surface of the slide member 4 as shown in FIG. The other end 23u on the upper side of the first connecting member 23 is sewn in an annular shape and is passed through the pin 45. The pin 45 extends in the width direction of the slide member 4 and is attached to the rear member 44.

The first connecting member 23 may be connected to any part of the seat body 11 to prevent the pad 21 from falling off along the shoulder belt 12, and instead of the slide member 4, the backrest may be used. It may be directly connected to the part 3.

A drawer 24 is provided on each of the pair of shoulder belts 12, 12. The drawer 24 has a ring portion 24r suitable for the operator's finger to pass through, and two shaft portions 24s and 24t. The drawer 24 is arranged on the side (lower side) opposite to the first connecting member 23 on the upper side of the pad 21.
The ring portion 24r constitutes a hole into which one adult finger can be inserted. The shaft portions 24s and 24t extend adjacent to each other in parallel, and the shoulder belt 12 is passed between these shaft portions. The shaft portion 24t is located inside the shoulder belt 12 (the side closer to the child). The shaft portion 24s and the ring portion 24r are located on the outer side (far side from the child) of the shoulder belt 12. Further, the shaft portion 24t is located on the upper side, the ring portion 24r is located on the lower side, and the shaft portion 24s is located between the shaft portion 24t and the ring portion 24r. Thus, the drawer 24 is slidably attached to the shoulder belt 12. The length of the shaft portion 24t is slightly larger than the width of the shoulder belt 12, and a long hole matching the cross-sectional shape of the shoulder belt 12 is partitioned between the shaft portion 24s and the shaft portion 24s.

The drawer 24 is connected to the pad 21 via the second connecting member 25. The second connecting member 25 is a belt narrower than the shoulder belt 12 and extends in the tubular hole of the pad 21. The upper end 25u of the second connecting member 25 is sewn to the upper region of the pad 21. The lower other end of the second connecting member 25 is sewn in an annular shape, and the shaft portion 24s of the drawer 24 is passed through. The second connecting member 25 overlaps the outer surface of the shoulder belt 12.

The second connecting member 25 is, for example, a band-shaped rubber string made by knitting a rubber thread, and is elastically stretchable. As shown by a virtual line in FIG. 8, the second connecting member 25 can be elastically expanded and contracted. Therefore, the other end region of the second connecting member 25 can be elastically pulled out from the lower other end portion of the pad 21.

Here, as a supplement to the lower other end of the pad 21, as shown in FIG. 7, the other end of the pad 21 has an inner end 22t that abuts on the shoulder of the child and an outer end 21t that is far from the child. include. The inner end 22t is formed in a tongue shape so as to protrude from the outer end 21t. The tongue-shaped inner end 22t is interposed between the child's shoulder and the drawer 24 at the original length in which the second connecting member 25 is not extended. As a result, the rigid drawer 24 does not come into contact with the child's shoulder. The inner end portion 22t corresponds to the lower end portion of the cushion material 22.

The second connecting member 25 regulates the drawer 24 from falling off. As a result, the drawer 24 is arranged adjacent to the other end of the pad 21. As a modification (not shown), one end 25u of the second connecting material 25 may be coupled to one end 23d of the first connecting material 23 instead of the pad 21. Alternatively, one end 25u may be connected to the backrest portion 3 or the slide member 4.

The present embodiment further includes a pair of left and right first connecting members 23, and a third connecting member 26 that connects the first connecting members 23 to each other. The third connecting member 26 is a belt narrower than the shoulder belt 12 and extends in the width direction of the seat body 11. Further, the third connecting member 26 is arranged along the entire surface of the slide member 4. The left and right ends of the third connecting member 26 are sewn to an intermediate portion of the first connecting member 23. The third connecting member 26 regulates the spacing between the pads 21 and 21 so that the pair of pads 21 and 21 are not too far apart. Further, the third connecting member 26 prevents the pad 21 from passing through the shoulder belt through hole 43 and moving to the rear of the backrest portion 3.

As shown in FIG. 5, the sliding layer 21s is provided on the surface of the inner portion of the pad 21 that comes into contact with the shoulder of the child. The slip layer 21s is made of a material having a high coefficient of friction, for example rubber, and is formed by a non-slip process applied to the inner portion of the pad 21. As a result, the pad 21 firmly grips the child's shoulder.

Next, the operation of this embodiment will be described.

Under the normal conditions shown in FIG. 5, the shoulder belt 12 has an appropriate length. A shoulder belt 12 of appropriate length extends along the front side of the shoulder of a child (not shown) seated in the seat body 11. The lower ends of the pair of shoulder belts 12 are connected to the crotch belt 13 and the pair of waist belts 14 via the connector 15 (see FIG. 1) to restrain the child. The second connecting member 25 has the original length and suspends the drawer 24. The drawer 24 is in contact with the outer surface of the inner end portion 22t with the shaft portion 24t on the upper side and the ring portion 24r on the lower side.

When the length of the shoulder belt 12 is insufficient, the operator operates the actuator 18 with one hand and raises the pair of drawers 24 with the other hand as shown by the arrows in FIG. It is good to pull it to the front F of. As a result, the belt lock mechanism 17 allows the adjustment belt 16 to move freely, the adjustment belt 16 slides backward in the direction indicated by the thin arrow in FIG. 6, and the shoulder belt 12 slides backward from the shoulder belt through hole 43 to the backrest portion. It is pulled out ahead of 3. Thus, the shoulder belt 12 is lengthened. When the operator pulls the drawer 24, the second connecting member 25 elastically extends, and the drawer 24 moves forward away from the inner end 22t. When the operator releases the drawer 24, the second connecting member 25 returns to the original length, and the drawer 24 is returned to the outer surface of the inner end 22t.

According to the present embodiment, since the shoulder belt 12 is covered with the pad 21, it is difficult for the operator to directly access the shoulder belt 12, but it is easy to grab the drawer 24 and move the shoulder belt 12 forward. Can be pulled out to. Therefore, smooth shoulder belt length adjustment is realized, and the labor of the operator is reduced.

When the length of the shoulder belt 12 is excessive, the operator may operate the actuator 18 with one hand while grasping the front end 16f of the adjustment belt 16 with the other hand and pulling it forward. As a result, the belt lock mechanism 17 allows the adjustment belt 16 to move freely, the adjustment belt 16 slides forward in the direction opposite to the direction indicated by the thin arrow in FIG. 6, and the shoulder belt 12 slides forward, and the shoulder belt 12 moves through the shoulder belt hole 43. It is pulled backward from the backrest portion 3. Thus, the shoulder belt 12 is shortened.

The shoulder belt structure of the present embodiment includes an adjustment belt 16 and a belt lock mechanism 17 provided on the seat body 11 on which a child sits, and a pair of shoulder belts 12 whose lengths are adjusted by the adjustment belt 16 and the belt lock mechanism 17. 12, a member slidably provided on the shoulder belt 12, a pad 21 that abuts on the shoulder of a child sitting on the seat body 11, one end of which is connected to the seat body 11, and the other end of which is connected to the pad 21. The first connecting member 23, the drawer 24 that is slidably locked to the shoulder belt 12 and pulls out the shoulder belt 12, and the second connection that one end is connected to the pad 21 and the other end is connected to the drawer 24. It is equipped with materials.

The second connecting member 25 of the present embodiment is passed through the pad 21, one end of which is connected to the upper end of the pad, and the other end of which is pulled out to the lower side of the pad 21 to the shaft portion 24s of the drawer 24. Be concatenated.

The lower other end of the pad 21 is formed in a tongue shape so that the inner end 22t that abuts on the child's shoulder protrudes from the outer end 21t. The original length of the second connecting member 25, the tongue-shaped inner end 22t is located inside the drawer 24 (the side closer to the child). As a result, the inner end portion 22t is interposed between the child's shoulder and the drawer 24, and the rigid drawer 24 can be prevented from coming into contact with the child's shoulder.

The shoulder belt structure of the present embodiment further includes a pair of first connecting members 23, 23, and a third connecting member 26 for connecting the first connecting members 23 to each other. As a result, the distance between the pair of pads 21 and 21 is restricted, and each pad 21 properly abuts on the left and right shoulders of the child. The pair of first connecting members 23, 23 and the third connecting member 26 are arranged in an H shape. As shown in FIG. 5, the shoulder belt 12 is passed through the shoulder belt through hole 43. When adjusting the shoulder belt 43 to be shortened, the shoulder belt 12 is pulled to the rear of the backrest portion 3 via the shoulder belt through hole 43, but the pair of pads 21 is connected to the third connecting member. Cannot pass through the shoulder belt through hole 43. Therefore, the pad 21 is not pulled to the rear of the backrest portion 3 via the shoulder belt through hole 43.

The surface of the inner portion of the pad 21 that comes into contact with the shoulder of the child is subjected to a slip-stopping process to form the slip-stopping layer 21s. As a result, the child's shoulder is gripped by the pad 21.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to those of the illustrated embodiments. Various modifications and modifications can be made to the illustrated embodiment within the same range as the present invention or within the same range. For example, a part of the configurations may be extracted from the above-mentioned one embodiment, another part of the configurations may be extracted from the above-mentioned other embodiments, and these extracted configurations may be combined.

The present invention is advantageously used in childcare equipment.

1 Child seat (children's seat device), 2 Seat surface,
3 backrest, 4 slide member, 10 base body,
11 Seat body, 12 shoulder belt, 12t one end of shoulder belt,
16 adjustment belt, 16f front end of adjustment belt,
17 Belt lock mechanism, 18 Operator, 20, 30 Covering member,
21 pads, 21s slip layer,
22 Cushion material (inner part), 22t inner end,
23 1st connecting material, 24 drawer, 25 2nd connecting material,
26 Third connecting material, 43 Shoulder belt through hole, 44 Rear member.

Claims (5)

The belt length adjustment mechanism installed in the child's seat and
A pair of shoulder belts pulled out from the belt length adjusting mechanism and adjusted in length by the belt length adjusting mechanism, and a pair of shoulder belts.
A member that is slidably provided on the shoulder belt and is a pad that comes into contact with the shoulder of a child sitting in the child's seat.
A first connecting material, one end of which is coupled to the child's seat and the other end of which is coupled to the pad.
A drawer that is slidably attached to the shoulder belt,
A shoulder belt structure comprising a second connecting material, one end of which is coupled to the pad or the first connecting material and the other end of which is coupled to the drawer and is elastically stretchable . The pad has one end on the backrest side of the child's seat and the other end on the opposite side of the backrest.
The other end includes an inner end that abuts on the child's shoulder and an outer end that is farther from the child, the inner end being formed in a tongue shape so as to protrude from the outer end.
The shoulder belt structure according to claim 1 , wherein the inner end portion of the original length of the second connecting material is interposed between the shoulder of the child and the drawer. The shoulder belt structure according to claim 1 or 2 , further comprising a third connecting member that connects a pair of the first connecting members to each other. The shoulder belt structure according to any one of claims 1 to 3 , wherein the inner portion of the pad that comes into contact with the shoulder of the child is subjected to a slipping process. The shoulder belt structure according to any one of claims 1 to 4, wherein the drawer includes a ring portion through which an operator's finger is passed and a shaft portion through which the shoulder belt is passed.

Images