JPH1053054A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the operations and shorten the operating time by holding an infant seated on a seat body with a small operating frequency or disengaging the seated condition. SOLUTION: A seat 2 for infant is equipped with a seat body 26, drawout side belts 31, 46, 54, and one fastening tool (32, 47, 55). The seat body 26 is equipped with a seat bottom 15 and seat back 19. The drawout side belts 31, 46, 54 are long stretching, and their tops and bottoms are secured to the seat body 26. The middle parts of the belts 31, 46, 54 are formed as capable of being bent. The fasteners 32, 47, 55 are to fasten the bent parts of the belts 31, 46, 54 to the seat body 26 with possibility of being separated, and are composed of fixed side belts 52 and 58, buckles 44, 53, 59 fixed to these belts 52 and 59, and tongue plates 51 and 57 positioned at the bends of the belts 31, 46, 54.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat for an infant or an elderly person, and more particularly to a vehicle seat suitable for a shuttle bus in a kindergarten or the like.

[0002]

2. Description of the Related Art Conventionally, as a seat of a pick-up bus in a kindergarten, a seat equipped with a seat belt in addition to a seat body including a seat, a back and an armrest is known.
The seat belt includes a left first horizontal band having an outer end fixed to the left side of the seat, a right first horizontal band having an outer end fixed to the right side of the seat, and left and right first horizontal bands. A first fastener for releasably fastening the inner end. Also, the seat belt has an upper second vertical band whose upper end is fixed to the upper part of the backrest, a lower second vertical band whose lower end is fixed to the lower part of the backrest,
A second fastener for detachably fastening a lower end of the upper second vertical band and an upper end of the lower second vertical band. Further, the seat belt has an upper third vertical band whose upper end is fixed to the upper part of the backrest, and a lower third belt whose lower end is fixed to the lower part of the backrest.
A vertical band; and a third fastener for detachably fastening a lower end of the upper third vertical band and an upper end of the lower third vertical band.

When an infant is seated on the vehicle seat having such a structure and the infant is kept in that state, the infant is seated on the seat and leaned on the backrest, and the first fastener is used to move the left and right first horizontal. Fasten the obi. Then, the lifting of the infant from the seat is regulated by the left and right first horizontal bands. Also, the upper and lower second vertical bands are fastened by the second fastener, and the upper and lower third vertical bands are fastened by the third fastener.
Then, the lifting of the infant from the backrest is regulated by the upper and lower second vertical bands and the upper and lower third vertical bands. When the state is released, the first fastener,
The second fastener and the third fastener are operated to separate the left and right first horizontal bands, the upper and lower second vertical bands, and the upper and lower third vertical bands, respectively.

[0004]

However, in the vehicle seat as described above, the first to third fasteners are used to hold or release the infant from being seated on the seat body. To conclude three sets of belts,
Had to be cut off. Performing such many operations not only places a great burden on the infant, but also takes time. In addition, when a small number of adults perform the operations described above on behalf of infants, it takes a long time to complete the fastening and release work for all infants, because the number of operations performed on each infant is large. I was The same applies to the case where not only infants but also people with disabilities or elderly people are seated on the seat body or released from the state.

The present invention has been made in view of the above circumstances, and has as its object to hold an infant, an elderly person, or the like in a seated state with a small number of operations, or to release the state. It is an object of the present invention to provide a vehicle seat capable of simplifying operation and shortening operation time.

[0006]

According to a first aspect of the present invention, there is provided a vehicle seat according to a first aspect of the present invention, which is formed in a long shape with a seat body for a passenger to sit on, and both ends are fixed to the seat body. In addition, the belt includes a belt whose intermediate portion is configured to be bendable, and one fastener for fastening the bent portion of the belt to the seat body so as to be separable.

In the first aspect of the invention, when the passenger is held in a seated state, the belt is separated from the seat body, and the passenger is seated on the seat body. The middle portion of the belt is bent at a position in front of the passenger. By operating one fastener, the bent portion of the belt is fastened to the seat body. Then, the belt is fixed to the seat body at the three ends, that is, both ends and the bent portion, and the passenger is restrained by the seat body by the belt. When releasing this state, the bending part of the belt is separated from the seat body by operating the fastener. Then, only the both ends of the belt are fixed to the seat body, and the restraining force of the belt on the passenger is reduced or eliminated.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, one end of the belt is fixed to a lower portion of the seat body, and the other end of the belt is fixed to an upper portion of the seat body. The fastener fastens a portion of the lower portion of the seat body separated from a fixed portion of the belt and a bent portion of the belt.

In the second invention, when the bent portion of the belt is fastened to the lower portion of the seat body by the fastener, the passenger is seated on the lower portion of the seat body and leans on the upper portion of the seat body by the belt. It is kept in the state.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, one end of the belt is fixed to a sheet body via a winder. .

According to the third aspect of the present invention, since the winder attempts to wind the belt, when the bent portion of the belt is fixed to the seat body by the fastener, the belt comes into close contact with the passenger's body.

According to a fourth aspect of the present invention, a passenger is seated, and a seat body having at least a seat portion and a backrest, and an outer end is fixed to a left side portion of the seat body. A left first horizontal band, a right first horizontal band whose outer end is fixed to the right side of the seat body, and an upper end is fixed to an upper end of the backrest, and a lower end is formed to the left first horizontal band. Among the connected second vertical band, the third vertical band whose upper end is fixed to the upper end of the backrest, and the lower end is connected to the right first horizontal band, and the left and right first horizontal bands And one fastener for releasably fastening the ends to each other.

In the fourth aspect of the invention, when the passenger is held in a seated state, the inner ends of the left and right first horizontal bands are separated from each other, and the passenger is seated on the seat body. The first horizontal band, the second vertical band, the third vertical band, and the fasteners are located on the front side of the passenger. By operating one fastener, the inner ends of the left and right first horizontal bands are fastened to each other. Then, the left and right first horizontal bands are in a state of being bridged between the left and right side surfaces of the seat body. Accordingly, the second vertical band is placed between the upper end of the backrest and the first horizontal band on the left side, and the third vertical band is formed between the upper end of the backrest and the first horizontal band on the right side. It will be in a erected state. The passenger is restrained by the seat body by the first horizontal band, the second vertical band, and the third vertical band. To release this state,
By operating the fastener, the inner ends of the left and right first horizontal bands are separated from each other. Then, the first horizontal band, the second vertical band, and the third
The vertical band has less or no restraint on passengers.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) A first embodiment embodying the first to third inventions will be described below with reference to FIGS. Here, a vehicle seat mainly used by an infant will be described.

In the shuttle bus of the kindergarten, a large number (only one is shown in the figure) of infant seats 2 are arranged along the side wall 1 in the front-rear direction (the traveling direction of the shuttle bus). Each infant seat 2 includes a pair of front legs 3 spaced apart from each other in the width direction of the shuttle bus, and a pair of rear legs 4 spaced apart from each other in the same width direction behind them. I have. Each of these four legs 3 and 4 is made of a pipe material extending in the vertical direction, and is fixed to the floor 5 at each lower end.

On the legs 3, 4, a seat frame 6, which forms the skeleton of each infant seat 2, is fixed. As shown in FIGS. 5 and 6, the seat frame 6 includes a pair of side plates 7 spaced apart from each other in the width direction, one front connecting portion 8 connecting the front ends of the both side plates 7, One rear connecting portion 9 connecting the rear ends
And two pieces of belt mounting plates 11 and 12 erected between the front and rear connecting portions 8 and 9 between both side plates 7.
Each side plate 7 includes a horizontal portion 13 extending in the front-rear direction, and an inclined portion 14 extending obliquely rearward and upward from the rear end of the horizontal portion 13. The front connecting portion 8 extends straight in the width direction, while the rear connecting portion 9 has a non-linear shape. More specifically, the rear connecting portion 9 is formed to be bent upward such that an intermediate portion thereof is higher than left and right end portions.

As shown in FIGS. 1 and 2, on the horizontal portion 13, the front connecting portion 8, and the belt mounting plates 11 and 12, a seat for a three-seater which is elongated in the width direction and made of a cushion or the like. The part 15 is mounted and fixed. Passage 23 of seat 15
The rear half of the side has been cut away and the width of the remaining part is smaller than the width of the front half. Notches 17 and 18 (see FIG. 1) are formed at positions corresponding to the belt mounting plates 11 and 12 at the rear of the seat portion 15, respectively.

On the left and right side plates 7 and the rear connecting portion 9,
A three-seat backrest 19, which is made of a cushion or the like and is elongated in the width direction, is placed. The backrest 19 is the seat 15 described above.
Has a width substantially the same as the width of the rear half of. As shown in FIG. 5, a concave portion 21 having a shape corresponding to the rear connecting portion 9 is formed at a lower end portion of the backrest 19. Then, when the backrest 19 is placed, the rear connecting portion 9 enters the recess 21, and there is almost no gap between the two. The left and right ends of the backrest 19 are fastened and fixed to the side plate 7 by a plurality of bolts 22.

As shown in FIGS. 1 and 2, an armrest 24 is attached to the side plate 7 on the side of the passage 23. The armrest 24 is formed by bending a pipe material at a substantially right angle, and is located closer to the passage 23 than the side plate 7. The lower end 24 a of the armrest 24 passes directly below the seat 15 and is fixed to the side surface of the horizontal portion 13, and the rear end 24 b is fixed to the side surface of the inclined portion 14. An armrest 24 made of a synthetic resin for receiving the elbow of the infant 45 is attached to the armrest 24.

The aforementioned legs 3, 4, seat frame 6, seat 15,
The seat body 26 is configured by the backrest 19 and the armrest 24. The seat body 26 is provided with three sets of seat belts 27, 28, 29. The seat belt 27 near the passage 23 is a drawer-side belt 3 made of one belt.
1, one fastener 32, and a winder 33. The pull-out belt 31 has a backrest 1 at its upper end.
9 is fixed. More specifically, as shown in FIG. 7, the upper end of the pull-out belt 31 is wound around a plate-shaped core member 36. A handle 37 and a cover 38 are overlapped on the wound portion, and these are fastened and fixed to the upper end of the rear surface of the backrest 19 by bolts 39.

On the other hand, the winder 33 has a well-known structure, and is disposed near the side of the cutout portion 16 of the seat portion 15, as shown in FIGS. A support piece 41 is fixed to the side plate 7 on the side of the passage 23, and the winder 33
Are attached to the support piece 41. Pull-out belt 3
The other end of 1 is drawn into the winder 33 through a winding opening (not shown), and is wound around a shaft (not shown).

The fastener 32 includes a tongue plate 42, a fixed belt 43, and a buckle 44.
The tongue plate 42 has an insertion hole 42a, and the pull-out side belt 31 is passed through the insertion hole 42a. The fixed side belt 43 is fixed to the belt mounting plate 12 at one end. The other end of the fixed side belt 43 passes through the notch 18 and is drawn out to the upper surface of the seat portion 15. The buckle 44 is for locking (locking) and releasing the tongue plate 42.
At the other end. When the tongue plate 42 is locked by the buckle 44 in order to hold the infant 45 in a state of being seated on the seat body 26, the drawer side belt 3
1 has a tongue plate 42 as a boundary and one end of the winder 33
The other end is fixed to the seat frame 6 and the other end extends substantially in the horizontal direction, and one end is fixed to the backrest 19 and the other end is bent to a part extending in the substantially vertical direction.

The seat belt 28 located at the center includes a pull-out belt 46 made of a single band and a tongue plate 5.
1, a single fastener 47 composed of a fixed side belt 52 and a buckle 53 and a winder 48. These components (46 to 48) are the same as the components (31 to 33) of the seat belt 27 near the passage 23 described above, and a detailed description thereof will be omitted. However, the winder 48 is mounted on a support piece 49 fixed to the belt mounting plate 12. The lower end of the pull-out belt 46 is passed through the corresponding notch 18 and wound around the winder 48. The fixed side belt 52 is fixed to the belt mounting plate 11 at one end. The other end of the fixed belt 52 passes through the notch 17 and is drawn out to the upper surface of the seat portion 15.

The seat belt 29 near the side wall 1 includes a drawer-side belt 54 made of a single band and a tongue plate 5.
7, a set of fasteners 55 including a fixed belt 58 and a buckle 59; and a winder 56. These components (54 to 56) are the same as the components 46 to 48 of the central seat belt 28 described above, and a detailed description thereof will be omitted here. However, the winder 56 is mounted on a support piece 61 fixed to the belt mounting plate 11. The lower end of the pull-out side belt 54 passes through the notch 17 and is wound around a winder 56. The fixed side belt 58 is fixed at one end to the side plate 7 near the side wall 1. The other end of the fixed side belt 58 passes through a gap between the seat 15 and the side wall 1 and is drawn out to the upper surface of the seat 15.

The infant 45 is attached to the infant seat 2 having the above-described structure.
Buckles 44, 53,
The tongue plates 42, 51, 57 are removed from 59, and the pull-out belts 31, 46, 54 are fixed to the fixed belts 43, 5.
Separate from 2,58. The infant 45 is seated on one of the position near the passage 23 of the seat 15, the center position, and the position near the side wall 1, and leans on the backrest 19. Tongue plates 42, 5 of corresponding seat belts 27 to 29
The take-out belts 31, 46, 54 are pulled out from the winders 33, 48, 56 while holding the drawers 1, 57. Pull-out side belt 31,
46 and 54 are bent around the tongue plates 42, 51 and 57. The tongue plates 42, 51, 57 are locked to the corresponding buckles 44, 53, 59. Then
The drawer side belts 31, 46, 54 are tongue plates 42,
It is fastened to the seat frame 6 via 51, 57, buckles 44, 53, 59 and fixed side belts 43, 52, 58. The pull-out belts 31, 46, 54 are fixed to the seat body at three positions, that is, both ends and bent portions (positions where the tongue plates 42, 51, 57 are located). In the drawer-side belts 31, 46, 54, the portions between the lower ends thereof and the tongue plates 42, 51, 57 extend in a substantially horizontal direction, thereby restricting the infant 45 from floating from the seat 15. Further, in the drawer side belts 31, 46, 54, the portions between the upper ends thereof and the tongue plates 42, 51, 57 extend in a substantially vertical direction, thereby restricting the back of the infant 45 from separating from the backrest 19. I do. In this way, the infant 45 is bent out of the pull-out side belt 31, 46, 5
4 holds the seat body 26 in a seated state.

In the above state, the winders 33, 48,
Since the belt 56 attempts to wind up the pull-out side belts 31, 46, 54, the belts 31, 46, 54 come into close contact with the shoulders, chest, abdomen and the like of the infant 45.

When releasing the above state, the buckle 4
The tongue plates 42, 51, and 57 are removed from the buckles 44, 53, and 59 by operating the buckles 44, 53, and 59. Then, the drawer side belts 31, 46, 54 are fixed to the fixed side belts 43, 5
2,58. Pull-out belts 31, 46, 5
Part 4 is wound up by the winders 33, 48, 56, and becomes substantially straight in a straight line. Pull-out belts 31, 4
6, 54 are the sheet bodies 2 only at the upper and lower ends.
6 and the belts 31, 46, 54
Of the child 45 is lost. Therefore, the infant 45 can stand up and separate from the infant seat 2.

As described above, according to the present embodiment, the infant 45 can be held in the seat body 26 in a seated state or the holding can be released only by operating the set of fasteners 32, 47, 55. . Therefore, the operation can be simplified and the operation time can be shortened.

This embodiment has the following features other than those described above.

(A) The winder 33 near the passage 23 is arranged near the side of the notch 16, and the winder 33 is located below the armrest 24. For this reason, the winder 33 does not protrude from the sheet body 26 toward the passage 23, and the winder 33 does not hinder walking.

(B) When the seat belts 27 to 29 are not used, the pull-out side belts 31, 46, 54 are wound by the winders 33, 4.
It is wound by 8,56 to form a straight line. For this reason,
When the infant 45 sits on the seat body 26, the pullout side belts 31, 46, 54 and the tongue plates 42, 51, 57
Is hard to get in the way.

(C) A concave portion 21 is provided at the lower end of the seat portion 15, and winders 48 and 56 are arranged here. For this reason, compared with the case where there is no recess 21, the infant seat 2 and the floor 5
The space between them can be widened.

(Second Embodiment) Next, a second embodiment which embodies the fourth invention will be described with reference to FIGS. The present embodiment is significantly different from the first embodiment in the configuration of the seat belt 63. More specifically, the seat belt 63 includes a left first horizontal band 64, a right first horizontal band 65, a second vertical band 66, a third vertical band 67, and one fastener 68.

The left first horizontal band 64 extends substantially in the horizontal direction, and is fixed to the left side surface of the backrest 19 at an outer end 64a. The first right horizontal band 65 extends substantially in the horizontal direction, and is fixed to the right side surface of the backrest 19 at an outer end 65a. The second vertical band 66 extends substantially vertically along the left front surface of the backrest 19. 2nd vertical belt 66
The upper end 66a passes through the upper surface of the backrest 19 and wraps around the rear surface, and is fixed to the backrest 19. The lower end 66b of the second vertical band 66 passes through the back side of the left first horizontal band 64 and is turned upward. This folded portion passes through the front surface of the left first horizontal band 64 and is locked to the main body of the second vertical band 66. Thus, the lower end 66b of the second vertical band 66 is connected to the left first horizontal band 64.

The third vertical band 67 extends substantially vertically along the right front surface of the backrest 19. The upper end portion 67 a of the third vertical band 67 passes through the upper surface of the backrest 19 and turns around to the rear surface, and is fixed to the backrest 19. Lower end 6 of third vertical band 67
7b is turned upward through the back side of the right first horizontal band 65. The folded portion passes through the front surface of the right first horizontal band 65 and is locked to the main body of the third vertical band 67. In this manner, the lower end portion 67b of the third vertical band 67 is connected to the right first horizontal band 65. The fastener 68 is for fastening the inner ends 64b, 65b of the left and right first horizontal bands 64, 65 so that they can be separated from each other.
And a buckle 71 attached to the inner end 65b.

The configuration other than the above items is the same as that of the first embodiment. For this reason, the same members are given the same numbers, and description thereof is omitted.

When the infant 45 is to be held on the infant seat 2 having the above configuration, the tongue plate 69 is removed from the buckle 71 and the inner ends 64b, 65b of the left and right first horizontal bands 64, 65 are removed. Separate from each other. The infant 45 is seated on the seat 15 and leans on the backrest 19. The left and right first horizontal bands 64, 65, the second vertical band 66, the third vertical band 67, the tongue plate 69 and the buckle 71 are attached to the infant 45.
Position in front of.

By locking the tongue plate 69 to the buckle 71, the inner ends 64b and 65b of the left and right first horizontal bands 64 and 65 are fastened to each other. Then, the left and right first horizontal bands 64, 65 are in a state of being bridged between the left and right side surfaces of the seat body 26. Accordingly, the second vertical band 6
6 is installed between the upper end of the backrest 19 and the first left horizontal band 64, and the third vertical belt 67 is installed between the upper end of the backrest 19 and the first right horizontal band 65. State. When the tongue plate 69 is locked to the buckle 71 in this manner, the first left and right horizontal bands 64, 65 and both vertical bands 6
6,67 movements in the front-rear direction are regulated. The infant 45 is restrained to the seat body 26 by the left and right first horizontal bands 64, 65, the second vertical band 66, and the third vertical band 67. In this way, the infant 45 is held while sitting on the seat body 26.

To release the above state, the release switch 71a of the buckle 71 is operated. Then, the tongue plate 69 comes off from the buckle 71, and the inner ends 64b, 65b of the left and right first horizontal bands 64, 65 are separated from each other. The left and right first horizontal bands 64, 65, the second vertical band 66, and the third vertical band 67 lose their restraining force on the infant 45.
Therefore, the infant 45 can stand up and separate from the infant seat 2.

As described above, according to the present embodiment, similarly to the first embodiment, only by operating one fastener 68,
The infant 45 can be held in the seat body 26 in a seated state or released. Therefore, the operation can be simplified and the operation time can be shortened.

The present invention can be embodied in another embodiment described below.

(1) In the first embodiment, the winding devices 33, 4
8, 8 are mounted on the support pieces 41, 49, 61 of the seat frame 6, but the winders 33, 48, 56 may be provided on the backrest 19. In this case, the upper ends of the pull-out belts 31, 46, 54 are wound around the winders 33, 48, 56, and the lower ends are fixed to the seat frame 6. Even in this case, the same operation and effect as those of the first embodiment can be obtained.

(2) In the second embodiment, the outer ends 64a, 65a of the left and right first horizontal bands 64, 65 are attached to the backrest 1.
9, the outer end portions 64 a and 65 a may be fixed to the side surface of the seat portion 15 as shown by a two-dot chain line in FIGS. 8 and 9. With this configuration, the same operation and effect as those of the second embodiment can be obtained.

(3) The present invention is embodied as a single- or two-seat infant seat, or a four- or more-seat infant seat, in addition to the three-seat infant seat 2. Is also good. Further, the present invention is not limited to the infant seat, and can be embodied in a normal vehicle seat.

(4) The present invention can be embodied not only in a shuttle bus for a kindergarten or the like, but also in seats for various vehicles for infants.

(5) In FIG. 8, a belt 72 for connecting the lower ends of the second vertical band 66 and the third vertical band 67 may be added, as indicated by a two-dot chain line. This way,
When the infant 45 is held in a sitting state, the second vertical band 66
In addition, it is possible to prevent the third vertical band 67 from opening (expanding the interval).

In the description of each of the above embodiments, the vehicle seat mainly used by an infant has been described. However, the present invention is not limited to the infant, and a person or an elderly person with a disabled limb can be held in a state of sitting on the seat body. The present invention can be applied to the case of canceling or canceling the state, and has the same effect. In addition to this, the present invention can naturally be applied to a normal vehicle seat used by an adult or the like. In addition, in the case of a vehicle seat for general adults and elderly people, a seat for two people is often used.

[0048]

As described above, according to the first aspect of the present invention, the passenger is kept seated on the seat body only by bending the intermediate portion of the belt and fastening the bent portion to the seat body by the fastener. You can do it. In addition, the above state can be released only by operating the fastener to separate the bent portion from the seat body. Therefore, the operation can be simplified and the operation time can be shortened.

According to the second aspect, in addition to the effects of the first aspect, the bent portion of the belt is fastened to the seat body with a fastener, so that the passenger can be seated on the lower portion of the seat body and the seat body can be seated. It can be reliably held in a state of leaning on the upper part.

According to the third aspect of the present invention, the first or the second
In addition to the effects of the invention, the belt can be brought into close contact with the passenger's body only by operating the fastener to fasten the bent portion of the belt to the seat body.

According to the fourth aspect of the present invention, it is only necessary to operate one fastener to fasten the inner ends of the left and right first horizontal bands to each other.
The passenger can be kept seated on the seat body. In addition, the above-mentioned state can be released only by operating the fastener to separate the inner ends of the left and right first horizontal bands from each other. Therefore, the operation can be simplified and the operation time can be shortened.

[Brief description of the drawings]

FIG. 1 is a front perspective view showing a vehicle seat according to a first embodiment of the present invention.

FIG. 2 is a rear perspective view showing the vehicle seat according to the first embodiment of the present invention.

FIG. 3 is a partial side view showing the vehicle seat according to the first embodiment of the present invention.

FIG. 4 is a front view showing a vehicle seat according to the first embodiment of the present invention.

FIG. 5 is a rear view showing the vehicle seat according to the first embodiment of the present invention.

FIG. 6 is a partial perspective view showing a seat frame of the vehicle seat according to the first embodiment of the present invention.

FIG. 7 is an exploded cross-sectional view showing a fixing structure of the vehicle seat according to the first embodiment of the present invention to the backrest of the pull-out belt.

FIG. 8 is a partial front view showing a vehicle seat according to a second embodiment of the present invention.

FIG. 9 is a side view showing a vehicle seat according to a second embodiment of the present invention.

[Explanation of symbols]

 15 Seat 19 Backrest 26 Seat body 31, 46, 54 Pull-out belt 32, 47, 55, 68 Fastener 33, 48, 56 Winder 45 Infant 64 Left first horizontal band 65 Right first horizontal band 66 2 vertical belt 67 3rd vertical belt

Claims (4)

[Claims] 1. A seat body for a passenger to sit on, a long belt whose both ends are fixed to the seat body and an intermediate portion is bendable, and a bent portion of the belt is separated into the seat body. A vehicle seat, comprising: a fastener for fastening as possible. 2. The belt has one end fixed to a lower portion of the seat body, the other end of the belt fixed to an upper portion of the seat body, and the fastener includes a fixing portion of the belt at a lower portion of the seat body. The vehicle seat according to claim 1, wherein a position separated from the belt and a bent portion of the belt are fastened. 3. The vehicle seat according to claim 1, wherein one end of the belt is fixed to the seat body via a winder. 4. A seat body for a passenger to sit on, having at least a seat and a backrest, a left first horizontal band having an outer end fixed to a left side of the seat body, and the seat body. A right first horizontal band having an outer end fixed to a right side of the backrest; a second vertical band having an upper end fixed to an upper end of the backrest and a lower end connected to the left first horizontal band; A fastener that has an upper end fixed to the upper end of the backrest, a lower end connected to the right first horizontal band, and a third vertical band connected to the inner ends of the left and right first horizontal bands so as to be separable from each other. A vehicle seat comprising: