TWI824703B - child seat - Google Patents

Abstract

The object of the present invention is to stably maintain a compacted state through a simple structure. In the folded state, the child seat 1 is folded in such a manner that the back support surface 12S of the backrest portion 12 and the seat surface 21S of the seat portion 11 face each other. In addition, the top tether 5 is wound so as to pass through the lower surface 21L side of the seat body of the seat part 11, the tether metal part 74 is engaged with the engaging shaft 49 of the backrest part 12, and the tether is tightened by the adjusting part 72. 71. Therefore, the child seat 1 can maintain the folded state of the seat portion 11 and the backrest portion 12 by the top strap 5, and can be tilted into various postures for storage without collapsing in the folded state, or can be tilted into various postures for easy transportation.

Description

child seat

The present invention relates to a child seat, which is preferably suitable for use in automobiles.

In the past, child seats were installed on vehicle seats when infants and young children were riding in vehicles such as cars and were widely used by users. In addition, as a child seat, in addition to a body structure in which the seat portion where the infant sits and the backrest portion that supports the infant's head or back portion are integrated, the head and the backrest portion can be separated and connected. The separated type of structure is also more popular.

Among them, as a separate type child seat, for example, one has been proposed that can expand the adaptability range to a child's physique by switching the attachment position of the backrest portion to the seat portion into a plurality of types (see, for example, Patent Document 1).

[Prior technical literature]

[Patent Document]

Patent Document 1: Japanese Patent Application Laid-Open No. 2005-22448 (Figure 2, etc.)

However, since the position or angle of the backrest portion of the integrated child seat is fixed relative to the seat portion, a large area of space is required for storage. In this regard, the separate type child seat, for example, separates the seat part and the backrest part from each other so that the surface of the seat part and the surface of the backrest part face each other. It can be folded into a relatively small size, which can limit the required space.

However, the child seat adapts to the body shape of the child, and the seat and backrest have a complex three-dimensional shape. Therefore, the child seat has a problem that the separated seat part and backrest part are in an unstable state when folded with each other, making it difficult to handle during storage or transportation.

The present invention was completed in consideration of the above points, and proposes a child seat that can be stably maintained in a compact state with a simple structure.

In order to solve this problem, the child seat of the present invention is provided with: a seat part for infants and young children to sit; and a backrest part that can be combined or separated from the seat part. In the case of this combination, the seat part is supported to sit on The back part of the infant and young child; the top lace, one end of which is installed on the backrest; and the engaging part, which is provided on the backrest, for a part of the top lace to engage.

When the child seat is not in use, the invention separates the seat part from the backrest and folds the seat part on the backrest, and then pulls the top strap around a part of the seat part so that the top strap is One part is engaged with the engaging part. Thus, when the child seat is not in use, the present invention can effectively utilize the unused top straps and maintain the folded state of the seat portion on the backrest.

According to the present invention, a child seat can be stably maintained in a compact state with a simple structure.

1:Child seat

2: Child seat body

3: Outer cover

4:Safety belt group

5:Top tie

11: Seating Department

12:Backrest

12S: Backrest support surface

21: Seat body part

21L: Lower surface of seat body

21S: Seat surface

22: handrail

23: Seat side engaging part

24: Vehicle engagement part

25: Rear central protrusion

26: Seat side with insertion hole

27:Front notch

28: Rear notch

31: Engagement space

32: Engagement shaft

41: Dorsal body part

42: Back displacement part

43:Shoulder protection part

44: Lace installation part

45:Backrest side engaging part

45D: engaging slot

46:Central lower surface

47: With insertion hole on the back side

48:Central groove

49: Engagement shaft

51: Crotch strap

52:shoulder strap

53: Fastening strap

54:Buckle

55:Latch tongue

58:With stopper

71: Lace up

72:Adjustment Department

73:Connecting strap

74: Lace metal parts

81: Ontology part

82: Lace insertion hole

83:Connection strap insertion hole

84:Operation Department

91: Ontology Department

91H: Insert hole

92:Spring part

93: Front end

Figure 1 is a schematic perspective view showing the structure of a child seat.

Figure 2 is a schematic perspective view showing the structure of the child seat body.

Fig. 3 is a schematic perspective view showing the structure of the seat portion.

Fig. 4 is a schematic perspective view showing the structure of the lower surface of the seat portion.

FIG. 5 is a schematic perspective view showing the structure of the backrest.

FIG. 6 is a schematic perspective view showing the structure of the lower part of the backrest.

Figure 7 is a schematic perspective view showing the structure of the top strap.

Figure 8 is a schematic side view showing the folded state of the child seat.

Figure 9 is a schematic perspective view showing the folded state of the child seat.

Figure 10 is a schematic perspective view showing the folded state of the child seat.

Hereinafter, modes for implementing the invention (hereinafter referred to as embodiments) will be described using drawings.

[1. Overall composition of child seats]

FIG. 1 is a schematic perspective view showing the entire child seat 1 of this embodiment. The child seat 1 is also called a child safety seat (Junior seat) and is roughly composed of a child seat body 2, an outer cover 3, a seat belt group 4 and a top tether 5.

The outer cover 3 is configured to cover the surface of the child seat body 2 or the seat belt group 4 that comes into contact with the infant. The outer cover 3 is composed of a combination of cloth, sponge materials, etc., and is divided into various parts, each of which has sufficient flexibility. Moreover, the outer cover 3 is configured so that each part can be attached and detached from the child seat body 2 or the seat belt group 4 .

The seat belt group 4 is composed of a plurality of belts or parts, a part of which is installed or integrated into the child seat body 2 (details will be described below). The seat belt group 4 can restrain the infant in a seated state.

The top strap 5 is composed of a combination of elongated rope-like straps or metal parts. become. By tightening the top tether 5 between the upper rear portion of the child seat 1 and the vehicle-side metal parts installed at a specific location in the vehicle, the upper rear portion of the child seat 1 is prevented from tipping forward.

In this specification, when describing each component, the front direction, the rear direction, the upper direction and the lower direction when viewed from the infant seated in the child seat 1 are referred to as "front", "rear", "upper" and "upper" respectively. "Down". In addition, the left direction and the right direction when the infant sitting on the child seat 1 is viewed from the front are called "left" and "right" respectively. In addition, in the following figures, in order to clearly show the structure, the outer cover 3 and the seat belt group 4 are appropriately omitted.

[2. Composition of the child seat body]

FIG. 2 is a schematic perspective view showing the entire child seat body 2 of this embodiment. The child seat body 2 is roughly composed of a seat part 11 mainly for infants and young children to sit, and a backrest part 12 mainly for supporting the back part of the infant and young children. Furthermore, the child seat body 2 is configured so that the seat portion 11 and the backrest portion 12 can be easily separated and coupled.

That is, when in use, the child seat body 2 is loaded on the seat (not shown) of the vehicle in a state where the seat portion 11 and the backrest portion 12 are engaged. On the other hand, when the child seat body 2 is not in use, the seat portion 11 and the backrest portion 12 are separated and properly fitted, thereby achieving a space-saving state, and can be easily stored in the trunk of a vehicle, for example.

[2-1. Composition of seating section]

3 and 4 are schematic perspective views showing the seat portion 11 viewed from different directions. The seat portion 11 is configured with the seat body portion 21 as the center, and is provided with armrests 22, seat side engaging portions 23, and vehicle engaging portions 24 on the left and right respectively. However, in FIG. 3 , for convenience of drawing, the vehicle engaging portion 24 on the right side is omitted.

The seat body 21 (Fig. 3) supports the lower body of the infant when the infant is seated. part. The upper surface of the seat body part 21, that is, the seat surface 21S, is formed into a gently curved surface that matches the body shape of the infant. In this seat surface 21S, approximately 1/3 of the front side is an inclined surface that descends as it goes forward, and approximately 2/3 of the rear side is a gentle inclined surface that slightly decreases as it goes rearward.

The armrests 22 are erected at the rear of the left and right sides of the seat body 21 and face upward. The front upper portion of the armrest 22 is formed with a gentle arm curved surface that slopes from the rear upper side to the front lower side, which can be used to place the arms of an infant sitting in the child seat 1 .

The seat-side engaging portion 23 is located at a position slightly away from the center in the left and right directions at the rear end of the seat body portion 21, and is mainly composed of an engaging space 31 and an engaging shaft 32. The engaging space 31 is in a shape cut from the rear edge of the seat body 21 toward the front, and passes through the seat body 21 in the up and down direction. The engagement shaft 32 is configured in a cylindrical shape with the central axis extending in the left-right direction. The engaging shaft 32 is composed of a resin material covering the periphery of an engaging reinforcing shaft (not shown) made of a metal material.

A rear center protruding portion 25 in a shape protruding toward the rear is provided between the seat side engagement portions 23 at the rear end portion of the seat body portion 21 . The rear central protruding portion 25 is configured in a rectangular parallelepiped shape as a whole, but the range from the crotch and the lower side of the rear side becomes an arc-shaped curved surface centered on the engaging axis 32 of the seat-side engaging portion 23 .

Furthermore, a seat side belt insertion hole 26 is formed behind the rear center protrusion 25 . The seat side strap insertion hole 26 is a slit-shaped hole that is longer in the left-right direction and shorter in the up-down direction, penetrating the inside and outside of the seat portion 11 .

In addition, the seat body lower surface 21L (FIG. 4) which is the lower surface of the seat body part 21 is formed substantially flat. However, a front notch 27 is formed on the lower surface 21L of the seat body near the center in the left-right direction near the front end, and is formed near the center in the left-right direction near the rear end. There is a rear notch 28.

The front notch 27 is located near the front end of the lower surface 21L of the seat body, is slightly recessed compared to its peripheral portion, and has an inclined surface that rises upward as it travels forward. The rear notch 28 is located near the center of the left-right direction near the rear end of the lower surface 21L of the seat body, that is, from the rear side to the lower side of the rear central protrusion 25. An arc-shaped inclined surface that rises upward.

The vehicle engaging portions 24 (Fig. 3) are respectively incorporated in the seat body portion 21 near the rear and lower sides of the left and right sides and directly below the armrest 22. The vehicle engaging portion 24 complies with the standard called ISOFIX (International Standards Organization FIX: International Organization for Standardization Fixture) (ISO 13216-1: 1999), and is used to engage with vehicle side metal parts (also known as vehicle side metal parts) installed on the vehicle seat. Called the anchor or lower anchor) engaged part.

The vehicle engaging portion 24 is equipped with a mechanism for engaging with vehicle-side metal parts at its rear end portion. Moreover, the vehicle engaging part 24 is configured to be displaceable in the front-rear direction with respect to the seat body part 21 by the operation of a protector or the like, and to maintain the position. Therefore, the protrusion amount of the vehicle engaging portion 24 in the rearward direction can be adjusted, and when not in use, it can also be stored by being moved to the frontmost position.

[[2-2. Composition of the backrest]

FIG. 5 is a schematic perspective view of the backrest portion 12 . The backrest portion 12 is composed of a backrest base portion 41 attached to the seat portion 11 and a backrest displacement portion 42 on the front side of the backrest base portion 41 that can slide (displace) in the up and down direction.

The backrest base portion 41 is generally configured in a rectangular parallelepiped shape that is long in the up-down direction, slightly end in the left-right direction, and shorter in the front-rear direction. Most of the backrest base portion 41 is made of a resin material, and is composed of parts that mainly form the front side or the inner side, and parts that mainly form the rear side or the outer side. Together, a space is formed inside it.

Shoulder protection portions 43 protruding forward are formed on the left and right upper portions of the backrest base portion 41 to protect the shoulders or heads of infants and young children. The shoulder protector 43 is an inclined surface in which the lower side portion moves downward as it moves toward the rear side. In addition, each part of the backrest base 41 is appropriately provided with holes for inserting various parts or ventilation holes for ensuring ventilation. Furthermore, near the upper end of the backrest base portion 41, a tether mounting portion 44 for mounting the top tether 5 (Fig. 1 and Fig. 2) is provided.

On the lower end portion of the backrest base portion 41 , backrest-side engaging portions 45 that engage with the seat portion 11 are formed at two locations away from the center in the left-right direction in the left and right directions respectively. The backrest-side engaging portion 45 is generally configured in a rectangular parallelepiped shape that is long in the up-down direction and short in the left-right direction. The shape of the lower portion when viewed from the left-right direction is semicircular.

In addition, in each backrest side engaging portion 45, an engaging groove 45D is formed by digging from the rear side to near the center in the up-down direction and extending from the rear side to the vicinity of the center in the front-rear direction. The engaging groove 45D extends from the left side to the right side of the backrest side engaging portion 45 and is formed in a semicircular shape near the front end when viewed from the left and right directions.

A central lower surface 46 , which is a portion of the lower surface of the backrest base portion 41 , is formed between the backrest side engagement portions 45 . The center lower surface 46 is provided with a backrest side belt insertion hole 47 for inserting a part of the seat belt group 4 (details will be described below). The backrest side belt insertion hole 47 is formed over the entire range of the center lower surface 46 in the left-right direction.

FIG. 6 is a schematic view showing a portion centered on the lower side portion of the backrest base portion 41 of the backrest portion 12, that is, the backrest side engagement portion 45 and the central lower surface 46. A central groove portion 48 having a groove-shaped excavation is formed near the center of the central lower surface 46 in the left-right direction from the front side to the lower side. The left and right side surfaces of the central groove portion 48 are inclined as if the vicinity of the apex of the front lower side is obliquely cut away. Bevel. Furthermore, an engaging shaft 49 is provided near the lower end of the central groove portion 48 at a position slightly away from the rear end toward the front. The engaging shaft 49 as the engaging portion is formed in a cylindrical shape along the left-right direction.

The backrest displacement portion 42 (Fig. 5) is formed with a portion on the upper side to protect the infant's head, and on the lower side is formed in a portion to support the infant's shoulders, back, and the like. In addition, the back shift portion 42 is appropriately formed with a hole for inserting the seat belt group 4, a hole for accommodating a part of the seat belt group 4, a hole for ensuring ventilation, and the like.

For convenience of explanation, below, the front surface of the backrest portion 12 , that is, the surface that supports the back portion, shoulder portion, head portion, etc. of the infant, is referred to as the backrest support surface 12S. The backrest support surface 12S is composed of a combination of a portion of the front side of the backrest base portion 41 and a portion of the front side of the backrest displacement portion 42 . Then, in the backrest part 12, the tether attachment part 44 and the engagement shaft 49 are respectively arrange|positioned at the position which is substantially opposite to each other across the backrest support surface 12S. Moreover, in the backrest part 12, the engagement shaft 49 is located behind the backrest support surface 12S.

[3. Composition of safety belt group]

The seat belt group 4 (Fig. 1) is composed of a combination of a plurality of belts such as a crotch belt 51, a shoulder belt 52, and a fastening belt 53, and parts such as a buckle 54 and a lock tongue 55. Among them, the crotch strap 51, the shoulder strap 52 and the fastening strap 53 are mainly composed of flat straps. By weaving specific fibers in a specific manner, the tape is formed into a rope-like shape with a longer width, a shorter thickness, and a sufficient length, and is flexible and has sufficient tensile strength.

The lower end of the crotch belt 51 is attached to a belt mounting portion (not shown) provided on the seat surface 21S of the seat portion 11, and a buckle 54 is attached to the upper end. The shoulder straps 52 are provided on the left and right sides of the infant to connect the upper side of the shoulder to the outer side of the waist. A lock tongue 55 for engaging with the buckle 54 is inserted into each shoulder strap 52 respectively.

The shoulder straps 52 are respectively pulled into the backrest base portion 41 from the backrest side strap insertion holes 47 (Fig. 4) of the backrest shift portion 42 located near the shoulders of the infant. Furthermore, the shoulder strap 52 is connected to a fastening strap 53 inside the backrest base portion 41 .

The fastening belt 53 travels downward inside the back base portion 41 and is pulled out to the outside from the back belt insertion hole 47 ( FIG. 4 ) provided in the central lower surface 46 of the back base portion 41 . In addition, the fastening belt 53 enters the inside of the seat portion 11 from the seat side belt insertion hole 26 (Fig. 3) of the rear central protrusion 25 of the seat portion 11, and travels forward from near the front end of the seat portion 11 to the seat portion 11. Pull out front.

Furthermore, the shoulder straps 52 and the fastening straps 53 are slidably inserted into the back base part 41 and the seat part 11 in the longitudinal direction. In addition, near the front end of the seat portion 11, there is provided a fixing fastening belt 53 or a belt stopper 58 for releasing the fixing (Fig. 2).

The safety belt group 4 is configured such that when the infant is seated, each shoulder strap 52 passes through the upper side of the infant's shoulder part to the front side, and the left and right locking tongues 55 are combined and inserted into the buckle 54, and then the The fastening strap 53 is pulled forward. Thereby, the seat belt group 4 can restrain the infant's shoulder portion to the waist portion to the backrest 12 of the child seat body 2, thereby maintaining the infant in a seated state.

[4. The composition of the top strap]

Figure 7 is a schematic perspective view showing the top strap 5. The top strap 5 is roughly composed of a strap 71 , an adjustment part 72 , a connecting strap 73 and a strap metal piece 74 .

The tether 71 is similar to the shoulder strap 52 (Fig. 1) of the safety belt group 4, and is configured in a tether shape with a long width and a short thickness and a sufficient length, and is flexible and has sufficient tensile strength. . One end of the tether 71 is fixed to the tether mounting portion 44 of the backrest 12 (Fig. 4). Hereinafter, regarding the longitudinal direction of the tether 71, the side fixed to the tether mounting portion 44 will be referred to as the fixed side. The opposite side is called the front end side.

The adjustment portion 72 is formed around a body portion 81 having a shape in which a columnar body (ie, a triangular prism) with a triangular cross section is turned transversely. The main body 81 is provided with a strap insertion hole 82 for inserting the strap 71 or a connecting strap insertion hole 83 for inserting the connecting strap 73. The strap insertion hole 82 and the connecting strap 73 are both formed in an elongated slit shape along the central axis (not shown) of the triangular prism of the main body 81 .

Furthermore, in the adjustment part 72, a pressing part (not shown) that presses the tether 71, a pushing part (not shown) that pushes the pressing part toward the tether 71, etc. are provided in the main body part 81. , is provided with an operation section 84 for accepting operations from the protector, etc.

In a state where the lace 71 is inserted into the lace insertion hole 82, the adjusting part 72 presses the pressing part against the tether 71 by the push part. Thereby, the position of the adjusting portion 72 relative to the tether 71 is fixed.

In addition, when the operating part 84 is operated (specifically, inserted) by a protector or the like, the adjusting part 72 can temporarily pull the pressing member away from the tether 71 and change the position relative to the tether 71 to the fixed side or the front end. side. Thereafter, when the operation of the operating part 84 is released, the adjusting part 72 presses the pressing part against the tether 71 by the action of the pushing part, and maintains the current position relative to the tether 71 .

The connecting belt 73 is composed of the same belt-shaped member as the tether 71 and has flexibility and sufficient tensile strength. One end of the connecting strap 73 is inserted into the connecting strap insertion hole 83 of the adjusting portion 72 , and the other end is inserted into the lace metal piece 74 .

The lace metal fitting 74 has a spring portion 92 attached to the main body portion 91 . The main body portion 91 is formed into an elongated shape as a whole by cutting and bending a steel plate having a sufficient thickness. One side in the longitudinal direction of the main body 91 , that is, the root side, is formed to be wider, and on the root side An insertion hole 91H for inserting the connection strap 73 is provided.

The body part 91 is formed to have a thinner front end side opposite to the root side, and is bent in such a manner that the front end portion is bent back in an arc shape toward the base side. In other words, when the front end side of the body part 91 is viewed from the side, it has a shape like a capital English letter "J" or an inverted shape. Hereinafter, the front end portion of the main body 81 is referred to as the front end portion 93 .

The spring portion 92 is an elongated metal plate that is sufficiently thinner than the body portion 91 and is gently curved and elastic. One end of the spring portion 92 is fixed to the root side of the body portion 91 , and the other end is in contact with the inside of the front end portion 93 .

If the lace metal part 74 is deformed in such a way that the spring part 92 is temporarily close to the main body part 91, and the front end part 93 is hooked to a specific fixed metal part, etc., the spring part 92 can be restored to its original shape by a restoring action. , maintaining the state of engagement with the fixed metal piece.

The child seat 1 (Fig. 1) uses the seat belt group 4 to restrain the infant seated in the child seat 1 (Fig. 1) when the infant is too small to use the seat belt of the vehicle. At this time, the child seat 1 needs to be installed on the vehicle with sufficient strength, so the vehicle engaging portion 24 (see Figure 3 etc.) and the top strap 5 are used.

As shown in FIG. 3 and others, the vehicle engaging portion 24 is extended rearward and engages with a vehicle-side metal member (not shown) incorporated into the seat on the vehicle side. In the top tether 5, after the front end 93 of the tether metal piece 74 is engaged with the vehicle side metal piece (not shown) provided behind the seat of the vehicle, the position of the adjustment portion 72 relative to the tether strap 71 is adjusted to form an alignment. The lace 71 is in a state of sufficient tension. Thereby, the child seat 1 is properly fixed to the vehicle.

[5. Folding state of child seat]

However, when the child seat 1 (Fig. 1) is not in use, the seat portion 11 and the backrest 12 of the child seat body 2 (Fig. 2) can be separated and folded into a smaller shape. Small. Hereinafter, this state is called a folded state. For the convenience of explanation, here, based on the backrest part 12, the Meaning up and down direction, left and right direction and front and back direction.

FIG. 8 is a schematic side view of the child seat 1 in the folded state viewed from the right side. FIG. 9 is a schematic side view of the child seat 1 in the folded state viewed obliquely from the upper right side. FIG. 10 is a schematic side view of the child seat 1 in the folded state viewed from below.

The seat part 11 of the child seat 1 in the folded state is folded on the upper side of the backrest part 12, the backrest support surface 12S of the backrest part 12 faces upward, and the seat surface 21S of the seat part 11 faces downward. That is, the child seat 1 in the folded state has the seat surface 21S and the back support surface 12S facing each other.

In addition, the armrest 22 of the seat portion 11 of the child seat 1 in the folded state is located below the shoulder protection portion 43 of the backrest portion 12 . That is, in the child seat 1 in the folded state, the inclined surface formed on the lower side part of the shoulder protection part 43 and the inclined surface of the armrest 22 are in contact or close to each other.

In addition, the child seat 1 in the folded state uses the top strap 5 . The top tether 5 travels forward from the tether mounting portion 44 of the backrest 12 and is wound half-circle around the front side of the seat portion 11 (the lower surface 21L side of the seat body). The front end portion 93 of the tether metal piece 74 Engage with the engagement shaft 49 of the backrest 12 .

Furthermore, by adjusting the position of the adjusting portion 72 , the top strap 5 becomes in a state of tightening the strap 71 . The tethers 71 respectively pass through the inside of the front notch 27 and the rear notch 28 provided on the lower surface 21L of the seat body of the seat portion 11 .

[6. Effects, etc.]

In the above structure, the child seat 1 of this embodiment is folded in such a manner that the back support surface 12S of the backrest portion 12 and the seat surface 21S of the seat portion 11 face each other. In addition, the top tether 5 is wound so as to pass through the lower surface 21L side of the seat body of the seat part 11, the front end 93 of the tether metal part 74 is engaged with the engaging shaft 49 of the backrest part 12, and the adjustment part 72 is adjusted. Bit Set to the state of tensioning the lace 71.

Therefore, the child seat 1 can maintain the folded state of the seat portion 11 on the backrest 12 via the top strap 5, and can be tilted into various postures for storage or tilted into various postures for easy transportation without collapsing the folded state.

The top tether 5 is originally provided for the following purpose: when the infant sitting in the seat is small and restrained by the seat belt group 4, the top tether 5 is used to secure the child together with the vehicle engaging portion 24 (Fig. 3). The seat 1 is fixed to the vehicle and used. Therefore, the top tether 5 has a tether metal piece 74 for engaging with the vehicle side metal piece, an adjustment portion 72 for adjusting the position of the tether metal piece 74 of the tether strap 71 , and the like. In addition, in the child seat 1, when not in use, there is no need to engage the top strap 5 with the vehicle.

Therefore, in the child seat 1, an engaging shaft 49 is provided on the backrest 12 on which the top tether 5 is installed, so that the lace metal piece 74 of the top tether 5 is engaged with the engaging shaft 49, and the adjusting portion 72 is adjusted. location. Thereby, in the child seat 1, the top strap 5 can be used to make the seat part 11 closely contact the backrest part 12 without adding other parts, etc., and maintain this state.

In other words, the lace metal piece 74 of the top lace 5 has the function of "hooking the front end to other parts", and the adjusting portion 72 has the function of "adjusting the length of the lace 71". When the child seat 1 is in use, the tether metal piece 74 is engaged with the vehicle side metal piece (not shown) and the position of the adjustment portion 72 is adjusted, tension is exerted on the tether strap 71 , thereby being well fixed relative to the child seat 1 . The location of the vehicle. In addition, when the child seat 1 is in the folded state, the strap metal part 74 is hooked on the engaging shaft 49 and the position of the adjusting part 72 is adjusted. The belt 71 exerts tension to maintain the position of the seat portion 11 relative to the backrest portion 12 . That is, in addition to fixing the child seat 1 to the vehicle, the child seat 1 can also effectively utilize the functions of the top strap 5 when fixing the seat portion 11 to the backrest portion 12 .

In addition, the backrest portion 12 is provided with a central groove portion 48 and an engaging shaft 49 on a central lower surface 46 on the side substantially opposite to the tether mounting portion 44 in the longitudinal direction, that is, the up-down direction (Figs. 5 and 6). Therefore, in the child seat 1 , the top strap 5 only needs to be pulled around approximately half of the front side of the backrest 12 .

Thereby, in the child seat 1, for example, the backrest support surface 12S of the backrest part 12 is placed on the floor or the like, and the seat surface 21S of the seat part 11 is folded downward on the upper side of the backrest part 12. , just pull the top strap 5 around the upper side of the seat part 11 by about half a circle. At this time, the child seat 1 eliminates the need for the cumbersome work of passing the top strap 5 through the underside of the backrest 12 .

Furthermore, the backrest portion 12 is provided with an engagement shaft 49 (Fig. 6) behind the backrest support surface 12S, specifically, in the central groove portion 48 that is more recessed than the surrounding area. Therefore, the child seat 1 does not cause discomfort due to the presence of the engaging shaft 49 to the infant who is seated during use, and the infant can be seated comfortably.

Moreover, in the seat part 11, a front notch 27 and a rear notch 28 are respectively provided near the front end and near the rear end of the seat body lower surface 21L (Fig. 4). Therefore, in the folded state of the child seat 1, by passing the tether straps 71 through the insides of the front notch 27 and the rear notch 28 respectively, the tether straps 71 can be prevented from being displaced in the left and right directions, and the seat portion 11 can be prevented from being moved relative to the folded child seat 1. The position of the backrest part 12 shifts and collapses.

Furthermore, in the seat portion 11, the length in the left-right direction of the back belt insertion hole 47 provided in the central lower surface 46 can be sufficiently longer than the width of the fastening belt 53 (Fig. 6). Therefore, when the child seat 1 is in the folded state, the fastening belt 53 may be in a position covering the central groove 48. However, since the fastening belt 53 can be easily bent in the left and right directions, it can be It is easy to engage the lace metal fitting 74 with the engagement shaft 49 (Fig. 10).

In addition, in the child seat 1, the case where the armrest 22 is provided at the rear of the seat part 11 and the shoulder protector 43 is provided at the upper part of the backrest part 12 has been described (Fig. 2, etc.). Therefore, in the child seat 1, in the folded state, the armrest 22 is positioned below the shoulder protection part 43, and the backrest support surface 12S of the backrest part 12 and the seat surface 21S of the seat part 11 can be stably maintained in a state facing each other ( Figure 8).

According to the above structure, the child seat 1 of this embodiment is folded in such a manner that the back support surface 12S of the backrest portion 12 and the seat surface 21S of the seat portion 11 face each other. In addition, the top tether 5 is wound so as to pass through the lower surface 21L side of the seat body of the seat part 11, the tether metal part 74 is engaged with the engaging shaft 49 of the backrest part 12, and the tether 71 is tightened by the adjusting part 72. . Therefore, the child seat 1 can maintain the folded state of the seat portion 11 and the backrest portion 12 by the top strap 5, and can be tilted into various postures for storage or tilted into various postures for easy transportation without destroying the folded state. .

[7. Other embodiments]

In addition, in the above embodiment, the case where the central groove portion 48 is provided from the front side to the lower side near the central lower surface 46 of the backrest portion 12 and the engagement shaft 49 is provided in the central groove portion 48 has been described (Fig. 6 ). However, the present invention is not limited to this. For example, a central groove 48 may be provided from the rear side to the lower side near the central lower surface 46 of the backrest 12 , and the engaging shaft 49 may be provided in the central groove 48 . Alternatively, for example, the central groove portion 48 may be omitted, and two supporting columns of a specific shape may be erected to protrude downward from the central lower surface 46 and the engaging shaft 49 may be provided between them. Furthermore, the engaging shaft 49 can also be provided at various other locations.

In addition, in the above-mentioned embodiment, the case where the tether metal fitting 74 of the top tether 5 is engaged with the engagement shaft 49 of the backrest part 12 in the folded state has been described (Fig. 10, etc.). However, the present invention is not limited to this. For example, a claw of a specific shape may also be provided on the adjusting part 72 so that the claw Engage with the engaging shaft 49.

In addition, in the above-mentioned embodiment, the case where the lace metal fitting 74 is connected to the lace 71 via the adjustment part 72 and the connection belt 73 has been described (FIG. 5). However, the present invention is not limited to this. For example, the lace metal piece 74 may be directly attached to the adjustment part 72 .

Furthermore, in the above embodiment, the situation in which the tether 71 is fixedly mounted on the tether mounting portion 44 provided at the upper end of the backrest 12 and the position of the adjusting portion 72 relative to the tether 71 has been described (Fig. 5 ). However, the present invention is not limited to this. For example, a function equivalent to the adjusting portion 72 can also be integrated near the upper end of the backrest 12 to adjust the length of the tether 71, and a tether metal piece is installed at the front end of the tether 71. 74.

Furthermore, in the above-mentioned embodiment, the case where the tether 71 of the top tether 5 is formed into a flat belt shape having a long width and a short thickness has been described. However, the present invention is not limited to this, and the tether 71 may be a tether-like member having a cross-sectional shape of a circular shape, an elliptical shape, a square shape, a hexagonal shape, or any other non-flat shape.

Furthermore, in the above-mentioned embodiment, the case where the length in the left-right direction of the back belt insertion hole 47 provided in the central lower surface 46 of the seat portion 11 is sufficiently longer than the width of the fastening belt 53 has been described (Fig. 6 ). However, the present invention is not limited to this. For example, the length of the back strap insertion hole 47 in the left-right direction may be slightly longer than the width of the fastening strap 53 . In this case, by fully pulling out the fastening strap 53 from the back strap insertion hole 47 or the seat side strap insertion hole 26 and flexing it, the fastening strap 53 can be easily deformed and the strap metal can be easily removed. The piece 74 is engaged with the engaging shaft 49.

Furthermore, in the above embodiment, the case where the front notch 27 and the rear notch 28 are respectively provided on the lower surface 21L of the seat body of the seat portion 11 has been described (Fig. 4). However, the present invention is not limited thereto. For example, at least one of the front notch 27 and the rear notch 28 may be omitted.

Furthermore, in the above-mentioned embodiment, the case where the armrest 22 is provided at the rear of the seat portion 11 and the shoulder protector 43 is provided at the upper portion of the backrest portion 12 has been described (Fig. 2, etc.). However, the present invention is not limited thereto. For example, armrests 22 may be provided at other positions of the seat part 11 and shoulder protection parts 43 may be provided at other positions of the backrest part 12 . Alternatively, at least one of the armrest 22 and the shoulder protection part 43 may be omitted. In short, when the child seat 1 is brought into the folded state using the top strap 5, it is sufficient to maintain the state in which the back support surface 12S of the backrest portion 12 and the seat surface 21S of the seat portion 11 face each other.

In addition, the present invention is not limited to each of the above-described embodiments and other embodiments. That is, the applicable scope of the present invention includes an embodiment in which part or all of the above-mentioned embodiments are arbitrarily combined with any or all of the above-mentioned other embodiments, or an embodiment in which a part is extracted.

Furthermore, in the above-mentioned embodiment, the child seat is constituted by the seat part 11 as the seat part, the backrest part 12 as the backrest part, the top strap 5 as the top strap, and the engagement shaft 49 as the engagement part. The situation of the child seat 1 of the chair is described. However, the present invention is not limited to this, and the child seat may also be composed of a seat part, a backrest part, a top strap, and a locking part of various other configurations.

[Industrial availability]

The present invention can be used, for example, in a child seat in which the backrest and the seat are detachable or combined and have a top strap.

1:Child seat

5:Top tie

11: Seating Department

12:Backrest

21L: Lower surface of seat body

22: handrail

27:Front notch

28: Rear notch

43:Shoulder protection part

44: Lace installation part

45:Backrest side engaging part

71: Lace up

Claims (5)

A child seat, characterized by: The seating section is for infants and young children to sit; The backrest can be combined or separated from the above-mentioned seat part, and when combined, supports the back part of the above-mentioned infant sitting on the above-mentioned seat part; a top strap, one end of which is mounted on the backrest; and An engaging portion is provided on the backrest portion for engaging a portion of the top strap. For example, the child seat in claim 1, wherein The above mentioned top straps have: A lace, one end of which is installed on the backrest; Adjustment part, which can adjust the position on the above-mentioned lace; and A lace metal piece that is connected to the above-mentioned adjustment portion and engages with a specific vehicle-side metal piece provided on the vehicle side; and The above-mentioned engaging part is engaged with the above-mentioned lace metal piece. For example, the child seat in claim 1, wherein The engaging portion is arranged in the backrest portion rearward of the backrest support surface that supports the back portion of the infant. For example, the child seat in claim 1, wherein The middle part of the above-mentioned backrest The tether mounting portion for mounting the top tether and the engaging portion are arranged on substantially opposite sides of each other across the backrest support surface of the backrest portion that supports the back portion of the infant. For example, the child seat in claim 1, wherein A notch through which the top strap can pass through is formed on at least one of the upper end and the rear end of the lower surface of the seat.