JP7285109B2 - Belt cover and seat device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a belt cover and a seat apparatus through which a belt for restraining an infant on a seat is inserted.

Strollers, child seats, and the like are known as seat devices for infants. For example, in a stroller, the seat portion is provided with a crotch belt, a pair of waist belts, and a pair of shoulder belts for restraining an infant riding in the stroller (see Patent Document 1). The crotch belt extends over the crotch of the infant riding on it and has a buckle at its tip. In addition, the waist belt extends around the left and right waists of the riding infant and extends over the left and right shoulders of the riding infant. The crotch belt, the waist belt and the shoulder belt are connected by buckles. Some child seats have a similar configuration to restrain the infant on the seat.

Japanese Patent Application Laid-Open No. 2018-202982

These belts are members of the seat that come into contact with the infant. Therefore, it is necessary to mitigate contact between these belts and infants. For this reason, belt covers are often attached to these belts. However, the belt cover may shift along the belt while the infant is on the seat. In such a case, there is a possibility that the belt exposed through the gap caused by the displacement of the belt cover may come into direct contact with the infant riding in the vehicle.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a belt cover and a seat device capable of suppressing displacement of the belt cover with respect to the belt that restrains the infant on the seat. .

A belt cover that solves the above-described problems is a belt cover that covers a belt that restrains an infant on a seat and that is entirely flexible, comprising: a cylindrical portion through which the belt is passed; a tongue portion extending from one opening of the cylindrical portion, wherein the tongue portion has a wide portion wider than the base end portion on the distal end side of the base end portion located in the opening portion. Prepare.

According to the above configuration, the tongue is passed through the through-hole of the seat and is pressed by the load of the infant. Therefore, the belt cover is less likely to be out of position with respect to the belt. Since the tongue has a wide portion, it is difficult for the tongue to slip out of the through hole.

In the belt cover described above, the wide portion may be wider than a through hole provided in a seat arranged in the seat portion and through which the belt is passed.
According to the above configuration, since the wide portion is wider than the through hole, it is difficult to slip out of the through hole.

A seat device for solving the above-described problems is a seat device for restraining an infant on a seat portion, wherein the seat portion includes a seat surface portion, a backrest portion located on the inner side of the seat surface portion, and the seat. A crotch belt extending from the face portion and extending to the crotch of the riding infant, and a shoulder extending from the backrest portion and extending to the shoulder of the riding infant. A belt, a waist belt extending from the seat surface portion or the backrest portion and extending around the waist of the infant riding on the infant, and a seat arranged on the seat surface portion and the backrest portion. the seat provided corresponding to each of the crotch belt, the shoulder belt, and the waist belt and having through holes through which the respective belts are passed; the crotch belt, the shoulder belt, and at least one of the waist belts includes a belt cover through which the belt is passed and which is entirely flexible, and the belt cover includes a tubular portion through which the belt is passed. and a tongue portion extending from one opening portion of the cylindrical portion, wherein the tongue portion has a wide portion that is wider than the proximal end portion and is located on the distal side of the proximal end portion located in the opening portion. and the tongue portion is passed through the through hole and is bent with respect to the cylindrical portion on the lower surface side of the sheet.

According to the above configuration, the tongue is passed through the through-hole of the seat and is pressed by the load of the infant. Therefore, the belt cover is less likely to be out of position with respect to the belt, and the belt is less likely to be exposed and directly touched by the infant. In addition, the belt cover is provided with a wide portion so that it is difficult to slip out of the through hole.

In the above seat device, the belt cover through which the crotch belt is passed may be bent toward the backrest portion.
According to the above configuration, the tongue portion is positioned under the baby's buttocks or the like, and is pressed by the load from the baby's buttocks.

ADVANTAGE OF THE INVENTION This invention can suppress the positional deviation of a belt cover with respect to the belt which restrains an infant to a seat part.

The perspective view which shows the unfolded state of a stroller. The front view which shows the state which arrange|positions a surface sheet to a seat part and a seat part. Fig. 2 is a perspective view of a main part showing a state in which a crotch belt cover is attached to the crotch belt; Front view of the crotch belt cover. Fig. 4 is a perspective view of a main part showing a state in which a shoulder belt cover is attached to the shoulder belt; Front view of the shoulder belt cover. 1 is a front view of a stroller showing a state in which an infant is riding; FIG. Fig. 10 is a front view of the main parts showing how the crotch belt, waist belt, and shoulder belts are connected to the buckle; FIG. 4 is a perspective view of a main part showing a state where a belt cover is attached to a waist belt;

A stroller to which a seat device according to the present invention is applied will be described below with reference to FIGS. 1 to 9. FIG.
FIG. 1 shows a single-seater foldable stroller 1 for carrying an infant or the like, which is used in a lying or sitting posture. Moreover, FIG. 1 shows a state in which a cushion member such as a base seat and a hood are attached to the frame. The state of the stroller 1 shown in FIG. 1 is a back-push state in which the handle is positioned at the rear of the stroller and the stroller 1 is operated from behind. In the following explanation, based on the back push state, the direction of travel is defined as "forward", the direction opposite to the direction of travel is defined as rear (back), and the left and right directions with respect to the direction of travel are defined as left and right. The (width) direction is defined, and the up-down direction with respect to the direction of travel is defined as up-down.

As shown in FIG. 1, the stroller 1 includes a pair of front leg frames 11, a pair of rear leg frames 12, and a seat portion 13 on which an infant or the like is placed in a lying or sitting posture. Each front leg frame 11 has a linear shape, and a front wheel 11a with casters is arranged at its lower end. Each rear leg frame 12 has an L shape, and a rear wheel 12a with casters is arranged at its lower end. The pair of front leg frames 11 are connected by a front stay 14 extending laterally, and the pair of rear leg frames 12 are also connected by a rear stay 15 extending laterally. The front stay 14 is provided with a step 16 for a seated infant or the like to step on.

An armrest 17 is rotatably supported at the upper ends of the pair of front leg frames 11 . The pair of rear leg frames 12 are also rotatably supported by armrests 17 at their upper ends. The seat portion 13 is configured between the pair of front leg frames 11 and the pair of rear leg frames 12, and includes a seat surface portion 13a and a backrest portion 13b. The seat surface portion 13 a is arranged at an intermediate height position between the front wheel 11 a and the rear wheel 12 a and the armrest 17 . Specifically, the seat surface portion 13a includes side frames arranged in the front-rear direction between the front leg frame 11 and the rear leg frame 12, the seat plate member being elastically supported by the left and right side frames, or the base seat. It is stretched on the side frame. Then, the surface sheet and the seat cushion are arranged there. The side frames, the front leg frame 11, the rear leg frame 12, and the armrest 17 are linked with each other, and the stroller 1 can be transitioned between an unfolded state and a folded state.

A front guard 22 is detachably attached to the tip of the armrest 17 . A handle 23 for pushing and operating the stroller 1 is arranged outside the armrest 17 . The handle 23 has an inverted U shape as a whole. A lateral frame 23b extending laterally in the handle 23 has an opening/closing lock lever 24 arranged in the center thereof, which serves as a grip for the operator and is operated by the operator.

A vertical frame 23 a of the handle 23 is rotatably supported on the frame by a rotating shaft 25 . The handle 23 rotates about a rotation shaft 25 between two positions, a rear pushing position at the rear of the stroller 1 and a facing pushing position at the front of the stroller 1 (in the direction of the arrow D1 and the direction opposite to the arrow D1). ).

As shown in FIG. 2, a U-shaped back support frame is rotatably attached to the rear end of the seat surface portion 13a. The backrest portion 13b is configured by a base sheet stretched over a backrest frame and a top sheet and the like arranged thereon. A headrest and the like are also provided on the backrest frame.

A seat surface portion 13a and a backrest portion 13b, which constitute the seat portion 13, are provided with cushion portions for reducing vibrations of an infant riding in the vehicle. Specifically, the seat surface portion 13a includes a seat surface base portion 31 configured by a seat plate member or a base sheet stretched over left and right side frames. A crotch belt 32 extends from the seat surface base portion 31 . The crotch belt 32 includes a strip-shaped belt portion 32a and a buckle 32b as a connecting member provided at the tip of the belt portion 32a.

The backrest portion 13b includes a backrest base portion 33 in which a base sheet is stretched on a backrest frame. A pair of shoulder belts 34 extends from the backrest base portion 33 from an upper position near the upper end portion to a position corresponding to the infant's shoulders. Each shoulder belt 34 has a strip-shaped belt portion 34a and an engaging portion 34b with which a hook piece 35d of a waist belt 35 provided at the tip of the belt portion 34a is engaged (see FIG. 8). Each engaging portion 34b is, for example, a cylindrical portion formed by bending the tip portion of the belt portion 34a, into which the hook piece 35d of the waist belt 35 is inserted.

A pair of waist belts 35 extends from the backrest base portion 33 from a position corresponding to the waist of the infant slightly above the boundary between the seat surface portion 13a and the backrest portion 13b. Each waist belt 35 includes a strip-shaped belt portion 35a and an insertion buckle 35b as a connecting member provided at the tip of the belt portion 35a (see FIG. 8). The insertion buckle 35b has an insertion piece 35c for the buckle 32b and a hook piece 35d inserted into the engaging portion 34b of each shoulder belt 34. As shown in FIG. Each hook piece 35d is inserted into the engaging portion 34b of each shoulder belt 34, and the tip portion thereof is butted and engaged.

A top sheet 36 is arranged on the seat surface base portion 31 and the backrest base portion 33 . The surface sheet 36 is composed of a series of cushion sheets extending over the seat surface base portion 31 and the backrest base portion 33 . The top sheet 36 may be a reversible sheet with different designs on each side, or a single-sided sheet having a front side and a back side with a design on the front side only.

The top sheet 36 is positioned slightly above the boundary between the seat surface base portion 31 and the backrest base portion 33, and has stop belts 36a extending from both left and right side edges thereof. The stop belt 36a has a hook 36c at its tip, and the tip is turned behind the back support frame and fastened with the hook 36c. The top sheet 36 tends to shift forward of the stroller 1 due to repeated movements of the infant when the infant is on the stroller 1, but the entirety of the stroller 1 can be secured by being attached to the backrest frame by the stop belts 36a. Forward shifting is suppressed. An upper stop belt 36b also extends from the upper edge of the top sheet 36. As shown in FIG. The upper stop belt 36b has, for example, a hook-and-loop fastener, and is wound around the back support frame to fix the upper side of the top sheet 36 to the back support frame.

The top sheet 36 has a first crotch hole 37 for passing the crotch belt 32 extending from the seat surface base portion 31 at a position corresponding to the seat surface portion 13a. The first crotch hole 37 is a slit-shaped through hole extending in the left-right direction and having the same width as the belt portion 32 a of the crotch belt 32 . The width of the first crotch hole 37 may be the same width as the belt portion 32a or may be slightly wider as long as the width is designed so that the belt portion 32a through which it is passed does not move significantly. Also, the first crotch passage hole 37 may be slightly narrow as long as the belt portion 32a passes therethrough without being greatly bent. The crotch belt 32 extending from the seat surface base portion 31 is passed through the first crotch hole 37 with the buckle 32b as an insertion end. The first crotch hole 37 is sized so that a tongue portion 45 of a crotch belt cover 43, which will be described later, can also be inserted.

The top sheet 36 is provided with a shoulder hole 38 for passing a shoulder belt 34 extending from the back support base portion 33 at a position corresponding to the back support portion 13b. Two rows of shoulder through holes 38 are provided for the right shoulder belt 34 and the left shoulder belt 34, and each row is provided in three stages in the height direction so that the height can be adjusted according to the growth of the infant. Each shoulder through hole 38 is a slit-shaped through hole extending in the horizontal direction and having the same width as the belt portion 34 a of the shoulder belt 34 . The width of the shoulder hole 38 may be the same width as the belt portion 34a or may be slightly wider as long as the width is designed so that the belt portion 34a to be passed therethrough does not move significantly. Moreover, the shoulder through hole 38 may be slightly narrow as long as the belt portion 34a passes through without being greatly bent. The shoulder belts 34 extending from the backrest base portion 33 are passed through the respective shoulder through holes 38 of a predetermined height with the engaging portion 34b as an insertion end. The shoulder through hole 38 is also sized so that a tongue portion 49 of a shoulder belt cover 47, which will be described later, can also be inserted.

The top sheet 36 has a waist hole through which the waist belt 35 extending from the backrest base portion 33 is passed at a position near the boundary between the seat surface base portion 31 and the backrest base portion 33 in the backrest base portion 33 . 39. Two waist through holes 39 are provided for the right waist belt 35 and the left waist belt 35 . Each waist through hole 39 is a vertically extending slit-shaped through hole having the same width as the belt portion 35 a of the waist belt 35 . The width of the waist hole 39 may be the same width as the belt portion 35a or may be slightly wider as long as it is designed to prevent the belt portion 35a to be passed therethrough from moving significantly. Also, the waist hole 39 may be slightly narrow as long as the belt portion 35a passes through without being greatly bent. Then, the waist belt 35 extending from the backrest base portion 33 is passed through each waist through hole 39 of a predetermined height with the insertion buckle 35b as an insertion end.

As shown in FIG. 3, in the top sheet 36, a seat cushion 41 can also be arranged at a position corresponding to the seat portion 13a. The seat cushion 41 is a floor cushion having a higher cushioning property than the surface sheet 36 . The seat cushion 41 is also provided with a second crotch hole 42 . The second crotch hole 42 is a slit-shaped through hole extending in the left-right direction and having the same width as the belt portion 32 a of the crotch belt 32 . The second crotch through hole 42 is provided in the same way as the first crotch through hole 37 . The second crotch passage hole 42 is also sized so that a tongue portion 45 of a crotch belt cover 43, which will be described later, can also be inserted.

A crotch belt cover 43 is attached to the crotch belt 32 . As shown in FIG. 4, the crotch belt cover 43 has flexibility as a whole by sewing a cloth material with a soft and thin porous material sandwiched between mesh sheets. The crotch belt cover 43 includes a tubular portion 44 through which the belt portion 32a is inserted, and a tongue portion 45 extending from a portion of one first opening 44a of the tubular portion 44 . The tongue portion 45 is provided with a wide portion 45a wider than the base end located at the first opening 44a on the distal end side.

Here, the width W1 of the base end portion of the tongue portion 45 is the same as, or slightly wider or slightly narrower than the width W3 of the first crotch hole 37 and the second crotch hole 42 . The width W2 of the wide portion 45a at the tip of the tongue 45 gradually widens from the base to the tip and has a trapezoidal shape. It is formed wider than the width W3 of the crotch hole 42 .

The crotch belt cover 43 also includes a support portion 46 that extends from a second opening 44b on the side opposite to the first opening 44a in the cylindrical portion 44 and supports a buckle 32b provided at the tip of the belt portion 32a. I have. The support portion 46 has a shape large enough to support the entire buckle 32b from below, and has, for example, a semicircular shape. As a result, the support portion 46 is positioned between the buckle 32b and the infant side, and prevents the buckle 32b from directly contacting the infant.

In the crotch belt cover 43 configured as described above, the side of the belt portion 44c for forming the cylindrical portion 44 is the front side. As shown in FIG. 3 , first, the top sheet 36 is attached to the seat base portion 31 and the backrest base portion 33 , and the seat cushion 41 is placed on the seat base portion 31 . It should be noted that the seat cushion 41 does not have to be arranged when it is unnecessary. In this state, the belt portion 32a is inserted into the cylindrical portion 44 of the crotch belt cover 43 from the first opening 44a with the belt portion 44c directed forward of the stroller 1 with the buckle 32b as the insertion end. be done. The buckle 32b is exposed from the second opening 44b and placed on the support 46. As shown in FIG.

On the tongue portion 45, on the other hand, the belt portion 32a extends from the first opening portion 44a. The tongue portion 45 is bent and inserted through the second crotch hole 42 of the seat cushion 41 and then through the first crotch hole 37 of the surface sheet 36 located therebelow, and is attached to the seat base portion 31. It faces the back surface of the surface sheet 36 located above. Then, the tongue portion 45 follows the shape of the base end portion of the belt portion 32a exposed from the seat base portion 31 and the shape of the seat base portion 31, and the tip portion is separated from the base end portion of the belt portion 32a. is folded into Specifically, it is bent toward the backrest portion 13b side of the seat surface base portion 31 in the depth direction.

Therefore, the bent tongue portion 45 is positioned under the infant's buttocks or the like, and the infant's load is applied thereto. As a result, the first opening 44a is maintained close to the periphery of the second crotch hole 42, and exposure of the belt portion 32a is suppressed. In addition, when the seat cushion 41 is not arranged, the first opening 44a is maintained close to the periphery of the first crotch hole 37, and exposure of the belt portion 32a is suppressed. Further, the crotch belt cover 43 is less likely to be misaligned with respect to the crotch belt 32 . In particular, the crotch belt cover 43 is less likely to shift in the direction of the buckle 32 b of the crotch belt 32 and is less likely to come off from the crotch belt 32 . That is, the cylindrical portion 44 is located between the second crotch hole 42 or the first crotch hole 37 and the buckle 32b, and can prevent the belt portion 32a from directly contacting the crotch of the infant.

Moreover, as shown in FIG. 5, shoulder belt covers 47 are attached to the left and right shoulder belts 34 . The shoulder belt cover 47 is made of the same cloth material as the crotch belt cover 43 and has flexibility as a whole. As shown in FIG. 6, the shoulder belt cover 47 includes a tubular portion 48 through which the belt portion 34a is inserted, and a tongue portion 49 extending from one first opening 48a of the tubular portion 48. .

Here, the width W11 of the base end portion of the tongue portion 49 is the same as, or slightly wider than or slightly narrower than the width W13 of the shoulder through hole 38 . The tongue portion 49 gradually widens from the base end toward the tip end and has a trapezoidal shape. The width W12 of the wide portion 49a at the tip of the tongue portion 49 is formed wider than the width W13 of the shoulder hole 38. As shown in FIG.

In the shoulder belt cover 47 constructed as described above, the side of the belt portion 48c for forming the cylindrical portion 48 is the front side. As shown in FIG. 5, the top sheet 36 is attached to the seat surface base portion 31 and the backrest base portion 33 . In this state, the tubular portion 48 of the shoulder belt cover 47 has the belt portion 48c directed forward or upward of the stroller 1, and the belt portion 34a is inserted into the first opening 48a with the engaging portion 34b as the insertion end. inserted from The engaging portion 34b is exposed from the second opening 48b opposite to the first opening 48a.

On the other hand, on the tongue portion 49, the belt portion 34a extends from the first opening portion 48a. The tongue portion 49 is bent and inserted into the shoulder hole 38 of the topsheet 36 to face the back surface of the topsheet 36 above the backrest base portion 33 . The tongue portion 49 is bent in a direction away from the base end portion of the belt portion 34 a , the tip portion of which is exposed from the backrest base portion 33 . Specifically, the tongue portion 49 is bent downward toward the seat base portion 31 side. Therefore, the bent tongue portion 49 is positioned under the baby's back or the like, and the baby's load is applied. As a result, the first opening 48a is kept close to the circumference of the shoulder hole 38, and exposure of the belt portion 34a is suppressed. Moreover, the shoulder belt cover 47 is less likely to be displaced from the shoulder belt 34 . In particular, the shoulder belt cover 47 is less likely to shift in the direction of the engagement portion 34b of the shoulder belt 34 and is less likely to come off from the shoulder belt 34.例文帳に追加That is, the tubular portion 48 is positioned between the shoulder through hole 38 and the engaging portion 34b, and can prevent the exposed belt portion 34a from directly contacting the infant's skin near the shoulder.

Next, as an action of the stroller 1, a method of restraining an infant with a belt will be described. As shown in FIG. 7, the infant is placed on the seat portion 13 facing the front of the stroller 1 . The crotch belt 32 covered with the crotch belt cover 43 is extended to the crotch of the infant with the buckle 32b lifted. Along with this, each shoulder belt 34 covered with the shoulder belt cover 47 extends and hangs over the infant's shoulder. As shown in FIG. 8, the waist belt 35 extends around the waist of the infant, and the hook piece 35d of the insertion buckle 35b of the waist belt 35 is inserted into the engagement portion 34b of the shoulder belt 34. , the tips are butt-engaged. Also, the insertion piece 35c is inserted into and engaged with the buckle 32b. As a result, the infant is restrained on the seat portion 13 .

In this state, even if the baby moves repeatedly, the crotch belt cover 43 is prevented from slipping along the belt portion 32a because the tongue portion 45 of the crotch belt 32 is pressed by the baby's load. In addition, since the shoulder belt cover 47 has the tongue portion 49 pressed by the load of the infant, the shoulder belt cover 47 is prevented from slipping along the belt portion 34a.

According to the stroller 1 as described above, the following effects can be obtained.
(1) In the crotch belt 32, the tongue portion 45 is located on the back side of the top sheet 36 and between the seat base portion 31 and the top sheet 36. Following the shape, the tip portion is bent in a direction away from the base end portion of the belt portion 32a. Therefore, the bent tongue portion 45 is positioned under the infant's buttocks, etc., and the crotch belt cover 43 is less likely to be displaced from the crotch belt 32 due to the infant's load being applied. . Therefore, even when the seat cushion 41 is not arranged, the belt portion 32a is less likely to be exposed at the positions of the first crotch hole 37 and the second crotch hole 42, and the skin near the crotch of the infant is not directly exposed. contact can be prevented. That is, the crotch belt cover 43 comes into contact with the baby's skin near the crotch, thereby softening the contact with the skin.

(2) Since the tongue portion 45 has the wide portion 45a, it is difficult for the tongue portion 45 to slip out of the first crotch passage hole 37. As shown in FIG. In other words, the crotch belt cover 43 can prevent displacement along the belt portion 32a. In particular, since the wide portion 45 a is wider than the first crotch hole 37 , it is difficult to slip out of the first crotch hole 37 and the second crotch hole 42 .

(3) In the top sheet 36, a seat cushion 41 may be further arranged at a position corresponding to the seat portion 13a. Since the tongue portion 45 is pressed by the load of the baby's buttocks, the belt portion 32a is less likely to be exposed even at the position of the second crotch hole 42.例文帳に追加

(4) In the shoulder belt 34, the tongue portion 49 is located on the back side of the topsheet 36, between the seat surface base portion 31 and the topsheet 36, and at the base end portion of the belt portion 34a and the backrest base portion 33. Following this, the tip portion is bent in a direction away from the base end portion of the belt portion 34a. Therefore, the bent tongue portion 49 is positioned under the baby's back or the like, and the shoulder belt cover 47 is less likely to be out of position with respect to the shoulder belt 34 due to the baby's load being applied. Therefore, the belt portion 34a is less likely to be exposed at the position of the shoulder hole 38, and can be prevented from coming into direct contact with the skin near the shoulder such as the baby's neck. That is, the shoulder belt cover 47 comes into contact with the infant's skin near the shoulders, thereby softening the contact with the skin.

The stroller 1 may be modified as follows.
- As shown in FIG. 9, waist belt covers 51 can be attached to the left and right waist belts 35 . The waist belt cover 51 is made of the same fabric material as the crotch belt cover 43 and the shoulder belt cover 47 and has flexibility as a whole. The waist belt cover 51 includes a tubular portion 52 through which the belt portion 35a is inserted, and a tongue portion 53 extending from one first opening 52a of the tubular portion 52 (see FIG. 6).

Here, the width W21 of the base end portion of the tongue portion 53 is the same as, or slightly wider than or slightly narrower than the width W23 of the waist hole 39. As shown in FIG. The width W22 of the wide portion 53a at the tip of the tongue 53 is wider than the width W23 of the waist hole 39. are also widely formed.

In the waist belt cover 51 configured as described above, the side of the belt portion 52c for forming the cylindrical portion 52 is the front side. The top sheet 36 is attached to the seat surface base portion 31 and the backrest base portion 33 . In this state, in the waist belt cover 51, the belt portion 52c is directed forward or upward of the stroller 1, and the belt portion 35a is inserted into the cylindrical portion 52 by inserting the buckle 35b from the first opening 52a. inserted. The insertion buckle 35b is exposed from the second opening 52b opposite to the first opening 52a.

On the other hand, on the tongue portion 53, the belt portion 35a extends from the first opening portion 52a. The tongue portion 53 is bent and inserted into the waist hole 39 of the topsheet 36 to face the back surface of the topsheet 36 on the backrest base portion 33 . At the proximal end of the belt portion 35a exposed from the back support base portion 33, the tip of the tongue portion 53 is bent away from the proximal end of the belt portion 35a. Specifically, it is bent inward in the width direction of the backrest base portion 33 . Therefore, the bent tongue portion 53 is positioned under the baby's back, hips, etc., and the baby's load is applied. As a result, the first opening 52a is kept close to the circumference of the waist hole 39, and exposure of the belt portion 35a is suppressed. The waist belt cover 51 is less likely to be misaligned with respect to the waist belt 35 . In particular, the waist belt cover 51 is less likely to shift in the direction of the insertion buckle 35b of the waist belt 35 and is less likely to come off from the waist belt 35.例文帳に追加That is, the cylindrical portion 52 is positioned between the waist crotch hole 39 and the insertion buckle 35b, and can prevent the belt portion 35a from directly contacting the waist of the infant.

- In the stroller 1, the crotch belt cover 43 may be attached to the crotch belt 32 only. Alternatively, the shoulder belt cover 47 may simply be attached to the shoulder belt 34 . Furthermore, it is sufficient to simply attach the waist belt cover 51 to the waist belt 35 .

- If any one of the crotch belt cover, the shoulder belt cover, and the waist belt cover has a tongue, the other belt covers may not have a tongue. In the stroller 1, the configuration in which the crotch belt cover 43 is provided with a tongue is most preferable. This is because the crotch belt cover 43 is most likely to shift with respect to the crotch belt 32 .

- The wide portions 45a, 49a, and 53a do not have to have a trapezoidal shape with the widest tip side. For example, each tongue 45, 49, 53 may have a widened portion 45a, 49a, 53a in the middle between the proximal end and the distal end.

- Belts other than the crotch belt 32, the shoulder belts 34, and the waist belt 35 may be used in the seat device as long as they restrain the infant. The belt cover attached to such a belt may have a configuration in which the tongue portion is pressed by the load of the infant on the back side of the top sheet.

- The crotch belt cover 43 may be arranged so as to be bent forward toward the feet of the infant, with the tongue portion 45 facing the back surface of the top sheet 36 on the seat base portion 31 . The shoulder belt cover 47 may be arranged to be folded upward with the tongue portion 49 facing the back surface of the top sheet 36 on the backrest base portion 33 . That is, the tongue portion 49 may be bent in a direction opposite to the bending direction of the tongue portion 49 shown in FIG. The waist belt cover 51 may be arranged to be folded outward in the width direction with the tongue portion 53 facing the back surface of the topsheet 36 on the backrest base portion 33 . That is, the tongue portion 53 may be bent in a direction opposite to the bending direction of the tongue portion 53 shown in FIG.

If the crotch belt cover 43 has a low possibility of the crotch belt 32 exposed from the first opening 44a coming into direct contact with the skin near the crotch of an infant, the first opening 44a is positioned so that the crotch hole 37, 42 may be spaced apart. If the shoulder belt 34 exposed from the first opening 48a is unlikely to come into direct contact with the skin near the shoulder such as the infant's neck, the shoulder belt cover 47 is arranged so that the first opening 48a is separated from the shoulder hole 38. You may have The waist belt cover 51 has the first opening 52a separated from the waist hole 39 if the waist belt 35 exposed from the first opening 52a is unlikely to come into direct contact with the skin around the waist of the infant. may In other words, any belt cover may be used as long as the tongue is pressed by the load of the infant and is not easily displaced with respect to the belt.

- The waist belt 35 may extend from near the boundary between the seat surface portion 13a and the backrest portion 13b of the seat surface base portion 31 .
- The frame structure of the stroller 1 is not limited to the above example. That is, the stroller may have any frame structure as long as it has a seat. For example, it may be a stroller with a non-foldable frame structure. Further, the stroller may have a frame structure in which the handle cannot be switched between the rear pushing position and the facing pushing position.

- As a seat device for infants, it can be applied not only to the stroller 1 but also to child seats and the like.

DESCRIPTION OF SYMBOLS 1... Stroller 11... Front leg frame 11a... Front wheel 12... Rear leg frame 12a... Rear wheel 13... Seat part 13a... Seat surface part 13b... Back support part 14... Front stay 15... Rear stay, 16... Step 17... Armrest 22... Front guard 23... Handle 23a... Vertical frame 23b... Horizontal frame 24... Opening/closing lock lever 25... Rotating shaft 31... Seat surface base portion 32... Crotch belt , 32a belt portion 32b buckle 33 back support base portion 34 shoulder belt 34a belt portion 34b engaging portion 35 waist belt 35a belt portion 35b insertion buckle 35c Insert piece 35d Hook piece 36 Top sheet 36a Stop belt 36b Top stop belt 36c Hook 37 First crotch hole 38 Shoulder hole 39 Waist hole 41 Seat cushion 42 Second crotch hole 43 Crotch belt cover 44 Cylindrical portion 44a First opening 44b Second opening 44c Band 45 Tongue 45a Wide portion 46 Support portion 47 Shoulder belt cover 48 Cylindrical portion 48a First opening 48b Second opening 48c Band 49 Tongue 49a Wide portion 51... Waist belt cover 52... Cylindrical part 52a... First opening part 52b... Second opening part 52c... Band part 53... Tongue part 53a... Wide width part.

Claims (4)

A belt cover that covers a belt that restrains an infant on a seat and is entirely flexible,
a cylindrical portion through which the belt is passed;
and a tongue portion extending from one opening of the tubular portion,
The tongue portion is wider than the base end located in the opening, is provided on a seat arranged in the seat, and is passed through the belt. Equipped with a wide part that is wider than the through hole that
The tongue portion is not provided with a fixing portion for fixing to the seat portion, and is configured to be bendable in a direction in which a greater load is applied to the infant. A seat device for restraining an infant in the seat,
The seat portion is
a seat;
a backrest portion located on the back side of the seat surface portion;
a crotch belt extending from the seat and extending to the crotch of the infant riding on the seat;
a shoulder belt extending from the back support and extending over the shoulders of the infant riding on the infant;
a waist belt extending from the seat surface portion or the backrest portion and extending around the waist of the infant on board;
In the seat arranged on the seat surface portion and the backrest portion, through holes are provided corresponding to each of the crotch belt, the shoulder belt, and the waist belt and through which the respective belts are passed. the seat comprising
At least one belt of the crotch belt, the shoulder belt, and the waist belt, a belt cover through which the belt is passed and having flexibility as a whole,
The belt cover is
a cylindrical portion through which the belt is passed;
and a tongue portion extending from one opening of the tubular portion,
The tongue portion has a wide portion wider than the base end portion on the distal end side of the base end portion located in the opening,
The tongue portion is passed through the through-hole, and is bent on the lower surface side of the seat in a direction in which the infant's load is applied to the tubular portion to a greater extent . 3. The seat apparatus according to claim 2 , wherein in the belt cover through which the crotch belt is passed, the tongue portion is bent toward the backrest portion with respect to the cylindrical portion. In the belt cover through which the waist belt is passed, the tongue portion is bent toward the inner side in the width direction of the seat surface portion or the backrest portion from which the waist belt extends with respect to the cylindrical portion. being
4. A seat arrangement according to claim 2 or 3.

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