CN201484465U - Riding device for infants - Google Patents

Abstract

The utility model provides a seat device for infants. In infant riding devices such as strollers and infant chairs, the rotation angle of the back (17) and the pedal (23) relative to the seat portion (11) can be set at a comfortable angle, and the sitting posture of the infant can be maintained. in place. When the back (17) is rotated relative to the seat portion (11), one end is installed on the back side of the connecting rod (39) of the bottom of the back (17) to push the back side of the pedal (23) to determine the angle of rotation of the pedal (23). Therefore, the angles of the back (17), the seat portion (11) and the pedal (23) can be kept properly at all times.

Description

Seats for infants and young children

technical field

The utility model relates to a seat device for infants such as a stroller and a chair for infants, in particular to a pedal structure for infants who have been seated to put their feet on.

Background technique

Conventionally, there are various riding devices for infants and young children. For example, a stroller mainly used outdoors when going out, a chair for infants that can be moved indoors with the same wheels on the legs as a chair for infants used indoors, or a baby meal used when eating at a table or the like. Chair (rack) and so on.

In addition, in this specification, the term "infant" has a broader concept than the usual infant, as long as it is an infant who needs to use a seat device for infants, including newborns, infants and children.

Conventional infant seating devices generally have a rotatable back at the rear of the seat portion. In addition, a waist belt is provided so that a seated child does not shift forward. In addition, there is also a device in which pedals are arranged in front of the lower part, but the pedals are fixed, and are not fixedly arranged on the position where the child can step on the foot when lying down and sleeping, but are fixedly installed on the child when he sits up and eats. In the state where the foot can be stepped on.

However, in the conventional infant seat device without a pedal, the infant's legs stick out in the air in an unstable state when the infant sits upright, making it difficult to maintain an appropriate sitting posture.

In addition, in conventional riding devices for infants and young children with pedals fixed, although the inclination angle of the back relative to the seat can be changed to various angles, the position of the pedals is fixed at one place, and it is difficult to adjust the position of each infant's body. Hold this posture in a comfortable position.

Utility model content

This utility model is made in order to solve the above-mentioned problems, and the object is to provide an infant seat device that can always properly maintain the infant's posture even if the rotation angle of the back relative to the seat part is changed to various angles. .

In order to achieve the above object, the utility model of technical solution 1 provides a riding device for infants, which is characterized in that the riding device for infants includes a back, a pedal and a linkage rod; the back can be rotated relative to the seat It is arranged behind the seat part; the above-mentioned pedal is rotatably arranged in front of the seat part; one end of the above-mentioned linkage rod is rotatably installed under the back, and the other end is rotatably installed on the back of the pedal. In addition, according to the infant seat device according to claim 1, the infant seat device according to claim 2 is characterized in that, in a state where the back is substantially on the same plane as the seat portion, The longitudinal side of the approximately L-shaped longitudinal section of the pedal is raised to a position where the seat is substantially on the same plane as the link rod, so that the seat, the back and the pedal are generally horizontal.

In addition, according to the riding device for infants and young children according to claim 1 or 2, the riding device for infants and young children according to claim 3 is characterized in that armrests are integrally provided at the left and right positions of the seat part, and at the left and right positions of the back. An enclosure part is integrally provided continuously with the above-mentioned armrest part, and a headrest connection mechanism for erecting the headrest when the back is lying down is provided, and the pedal has a substantially L-shaped longitudinal section, thereby In the lying down state, the infant is surrounded by the L-shaped lower part of the armrest, the enclosure, the headrest, and the step.

In addition, according to the riding device for infants and young children described in technical solution 1, 2 or 3, the utility model of riding device for infants and young children according to technical solution 4 is characterized in that the linkage rod is U-shaped as a whole and is rotatably installed on the One end of the lower part of the back bends the two front ends of the U-shape in an L-shape and can be freely rotated and fitted into the rotation hole on the back, and the other end is rotatably installed on the back of the pedal so that the central edge of the U-shape can be rotated remain firmly on the back of the pedal.

In addition, according to the riding device for infants and young children according to claim 4, the riding device for infants and young children according to claim 5 is characterized in that the left and right parts of the lower back portion at which the end of the linkage rod is rotatably mounted is formed in a plate shape. And it is a convex arc shape, and the left and right places on the side of the seat part receiving the lower part of the back are formed into a concave arc shape, and the inner sides of the convex arc-shaped parts of the above-mentioned left and right places are facing each other. Exposed from the seat portion, a protrusion is formed on the exposed portion, and a rotation hole is formed on the protrusion.

In addition, according to the infant seat device according to claim 1, 2, 3, 4, or 5, the infant seat device of claim 6 is characterized in that the step provided in front of the seat portion has a substantially L-shaped In the longitudinal section, the size of the substantially L-shaped longitudinal side portion can be adjusted.

In addition, according to the infant seat device described in claim 1, 2, 3, 4, 5, or 6, the infant seat device of claim 7 is characterized in that the pedal is composed of a pedal body and a sliding part; The pedal body is mounted on the seat portion and constitutes a substantially L-shaped upper part; the above-mentioned sliding part can slide downwards with the pedal body as a guide member and constitutes a substantially L-shaped lower part. A locking mechanism that prevents the above-mentioned sliding and a release lever for releasing the locking.

Description of drawings

FIG. 1 is an overall perspective view of an infant seat device according to an embodiment of the present invention.

Fig. 2 is a diagram showing a state in which a leg part and a chair part are separated in Fig. 1 .

FIG. 3 is a diagram showing a state in which a table portion is removed from a chair portion in FIG. 2 .

Fig. 4 is a diagram showing a state in which leg parts and a chair part are combined in Fig. 3 .

FIG. 5 is a side view of FIG. 4 .

Fig. 6 is a front view of Fig. 4 .

FIG. 7 is a diagram showing a state in which the back is laid down in FIG. 4 .

Fig. 8 is a perspective view of the chair portion in Fig. 3 viewed from the rear lower side.

Fig. 9 is a side view of the chair portion of Fig. 7 .

Fig. 10 is an enlarged view showing main parts of the upper part of the chair part in Fig. 5 .

Fig. 11 is an enlarged view showing a main part of the lower part of the chair part in Fig. 5 .

Fig. 12 is a perspective view showing another embodiment of the pedal of Fig. 1 .

FIG. 13 is a diagram showing the operation of FIG. 12 .

Fig. 14 is a longitudinal sectional front view of Fig. 12 .

Fig. 15 is a longitudinal sectional side view of Fig. 14 .

Fig. 16 is an exploded perspective view of Fig. 14 viewed from the rear.

Fig. 17 is a diagram showing one of the left and right legs in Fig. 2 or Fig. 3, in a state where the height of the leg has reached the fifth stage.

Fig. 18 is an enlarged side view of main parts of Fig. 17 .

Detailed ways

Next, Embodiment 1 of this invention is demonstrated using FIGS. 1-18.

Overall overview

The overall outline will be described using FIGS. 1 to 7 .

The infant riding device 1 of the present embodiment is a chair for infants used indoors. The legs 3 are provided on the left and right, and are respectively connected by connecting members 5 (refer to FIG. 2 and FIG. 3 ), forming a structure capable of standing independently as a whole. In addition, two swing rods 7 are mounted on the left and right leg parts 3 . The swing lever 7 has a U-shape, and is arranged with the opening side of the U-shape positioned upward. The chair part 9 is disposed on the swing lever 7 . The chair part 9 can swing forward and backward by the action of the swing lever 7 .

chair section 9

Next, the chair part 9 is demonstrated using FIGS. 1-16.

The seat portion 11 has a support surface 13 (see FIGS. 3 to 6 ) on which the buttocks of the infant are mainly placed, and armrests 15 connected to the support surface are provided integrally with the support surface 13 on the left and right sides of the support surface 13 . A table part 16 is detachably provided on the armrest part 15 (see FIG. 2 and FIG. 3 for comparison). A back portion 17 disposed behind the seat portion 11 is provided so as to be rotatable about a rotation shaft 19 . The back portion 17 is integrally provided on the left and right with a surrounding wall portion 21 which can be arranged in a continuous state with the above-mentioned armrest portion 15 . Below the enclosure portion 21 is provided the above-mentioned rotating shaft 19 . On the front surface of the back 17 is provided a safety belt 22 (FIG. 7). A pedal 23 is provided in front of the seat portion 11 so as to be rotatable about a rotation shaft 25 . A headrest 27 is provided above the back 17 so as to be rotatable about a rotation shaft 29 .

The part 31 (refer to FIG. 9 and FIG. 11 ) where the above-mentioned rotating shaft 19 is provided under the enclosure part 21 at the right and left of the back part 17 is formed in a plate-like convex arc shape. The arc-shaped portion 31 is formed around the rotation shaft 19 . Corresponding to the convex arc-shaped portion 31, concave arc-shaped portions 33 (refer to FIG. 11 ) are formed on the left and right sides of the seat portion 11 to form the above-mentioned convex arc-shaped portion. 31 structures.

Linkage mechanism 45

The convex arc-shaped parts 31 are respectively provided on the left and right, and the inner surfaces facing each other are exposed from the seat part (see FIG. 8 ). A protrusion 35 (see FIG. 11 ) is formed on the exposed portion, and a rotation hole 37 is formed on the protrusion 35 . One end of the linkage rod 39 is rotatably installed in the rotation hole 37 .

That is, the linkage rod 39 has a U-shape as a whole, and both front ends of the U-shape are bent in an L-shape, and are rotatably fitted into the rotation hole 37 . A depression 41 is formed in the concave arc-shaped portion 33 within the range in which the protrusion 35 turns. Both ends of the recess 41 abut against the protrusion 35 to form stoppers for restricting the rotation of the seat portion 11 .

The U-shaped central side of the linkage lever 39 is held on the back surface of the pedal 23 so as to be rotatable. The back side of the pedal 23 includes a groove 43 (refer to FIG. 11 ) having a circular cross section for being rotatably held, and a holding portion fixed by a bolt so that the interlocking rod 39 held in the groove 32 does not fall off. 44 (refer to FIG. 8 ).

By providing as described above, the interlocking mechanism 45 having the interlocking rod 39 is configured. When the back 17 is rotated relative to the seat portion 11 by the action of the linkage mechanism 45, the linkage rod 39 mounted on the back 17 pushes the back of the pedal 23 to make the pedal 23 form a predetermined rotation angle.

Tilt Lock Mechanism 53

The tilted state of the back 17 is supported by the support rod 47 (see FIG. 5 , FIG. 8 , FIG. 9 and FIG. 10 ). The support rod 47 is formed in a U-shape as a whole (see FIG. 8 ), the two front ends of the U-shape are bent in an L-shape, and the bent part is rotatably fitted in the hole 49 of the seat portion 11 (see FIG. 5 ). Among them, the fitted front end is stopped by a push nut to prevent falling off. The push nut is fitted into a recess formed around the hole 49 . The side at the center of the U-shape is engaged with an engaging recessed portion 51 provided on the back surface of the back portion 17 in multiple stages.

A tilt lock mechanism 53 is provided to lock the tilting operation of the back 17 by automatically performing this engaging operation, that is, to lock the tilting.

That is, as shown in FIG. 10 , a rotating cover body 55 for covering the above-mentioned engagement recesses 51 provided in multiple stages is mounted on the back surface of the back 17 so as to be rotatable about a rotating shaft 57 . The rotating cover body 55 is formed in a box shape with an open left side in FIG. 10 , and can be turned to cover the engaging recess 51 and separate from the engaging recess 51 . This rotation is performed by hooking a finger|toe on the handle part 58 (refer FIG. 8, FIG. 10) provided in the upper part of the rotation cover body 55. As shown in FIG. Long holes 59 are formed in the vertical direction on the left and right side surfaces of the rotating cover body 55 . A U-shaped central side of the above-mentioned support rod 47 penetrates through the left and right long holes 59 and is slidably held.

Then, in the state where the rotating cover body 55 covers the engagement recess 51, the support rod 47 is fitted into the engagement recess 51, and in the state where the rotation cover 55 is separated from the engagement recess 51, the support rod 47 is released from the engagement recess 51. disengagement, by means of which the support rod 47 can slide in the elongated hole 59 .

locking lever 61

As shown in FIG. 10 , a lock lever 61 for locking with the rotation cover 55 covering the engagement recess 51 is provided on the back above the rotation cover 55 . The locking lever 61 is composed of an inner cylinder 63 and an outer cylinder 65 , the outer cylinder 65 is fixed on the back 17 , and the inner cylinder 63 can rotate relative to the outer cylinder 65 . A head 67 is integrally formed on the outer front end of the inner tube 63 , and the upper end of the above-mentioned rotating covering body 55 is pressed and locked by the head 67 . This locking and unlocking are performed by rotating the head 67 .

Headrest connecting mechanism 69

As shown in FIG. 10 , there is provided a headrest connection mechanism 69 for making the headrest 27 an optimum rotation angle corresponding to the rotation angle of the back 17 .

That is, one end of the connection member 73 is integrally provided on the rotation shaft 71 slidably provided in the long hole 59 of the rotation cover body 55 . The other end of the connecting member 73 is rotatably attached to a shaft 74 (see FIG. 8 ) of the headrest 27 . Therefore, when the turning angle of the back 17 is increased and the back is in a lying state, the support rod 47 moves above the elongated hole 59 to press the connection member 73 . The pressed connecting member 73 rotates the headrest 27 counterclockwise in the drawing. As a result, the headrest 27 is in an upright state, and can support the head of a lying infant without falling to the outside (see FIGS. 7 and 9 ). The connecting member 73 is biased downward along the elongated hole 59 by the spring 75 and returns to its original state when it is not pushed by the support rod 47 .

In addition, the tilt locking mechanism 53 and the headrest connecting mechanism 69 are described in detail in the application bulletins (Japanese Patent Publication No. 7-27887, Japanese Patent Publication No. 7-27888) that the applicant has applied for.

In addition, downward-facing grooves 77 for accommodating the two swing levers 7 are formed on the bottom surface of the seat portion 11 (see FIGS. 2 , 3 , 5 , 8 , 9 , and 11 ). The received swing rod 7 is held in the groove by a jig not shown.

leg 3

As shown in FIGS. 17 and 18 , the leg 3 includes an upper leg body 111 and two lower leg members 113 . Each leg member 113 is provided with a wheel 115 at the lower end, respectively. The front wheels 115 are provided with casters 117, so that the traveling direction can be easily changed.

The rear leg member 113 is hinged to the leg body 111 . The other leg member 113 is hinge-coupled to the hinge joint part 121 of the slide bar 119 . The slide bar 119 integrally provided on the hinge coupling portion 121 is housed therein so as to be slidable in the front-rear direction in the leg body 111 .

That is, a long hole 123 is formed in the slide bar 119 along the front-rear direction, that is, the longitudinal direction. The elongated hole 123 is also formed continuously with the part of the hinge coupling part 121 . Two pins 125 provided on the leg body 111 at predetermined intervals pass through the elongated hole 123 . The slide bar 119 is biased in the left direction in FIG. 18 , that is, in the direction in which the leg portion 3 is extended and raised by a spring (not shown).

The slide bar 119 has a quadrangular cross section. A plurality of adjustment holes 127 are arranged in parallel along the length direction on the upper surface of the sliding rod 119 . A pin 129 inserted into the adjustment hole 127 is provided vertically movable on the leg body side. That is, the spring 131 biases the pin 129 in the downward direction which is the insertion direction. In addition, there is provided a rod 135 that engages with a portion 133 whose diameter has expanded in the middle of the pin 129 , and is provided so as to penetrate the outer side of the leg body 111 (the left and right outer sides of the assembled infant seat device 1 ). The rod 135 is provided so as to be movable up and down along the longitudinal direction of the pin 129 .

With the above structure, when the lever 135 is lifted upward from the outside of the leg body 111 , the pin 129 moves upward against the urging force of the spring 131 , away from the adjustment hole 127 . Since the pin 129 leaves the adjusting hole 127, the sliding rod 119 is moved to the left in the figure by the action of the spring not shown, and the legs 3 crossed in an X shape and hinged are elongated and heightened.

In addition, if the rod 135 is released during the sliding of the slide rod 119, the pin 129 is biased by the spring 131 and reinserted into the adjustment hole 127, so that the leg portion 3 maintains a predetermined height. Since five adjustment holes 127 are opened, the height can be adjusted to five levels when the infant seat device 1 is used. The adjustment hole 127 of the fifth stage (the adjustment hole in which the pin 129 is inserted in the drawing) is a long hole longer than the other adjustment holes 127, and also serves as an adjustment hole 127 in a storage state described later.

Brake 141

A stopper 141 that contacts the leg member 113 is provided on the bottom surface of the leg body 111 . That is, although the X-shaped shape of the legs 3 is advantageous in terms of strength, the advantage in strength is lost when the crossing angle of the X becomes too small, for example, reaches zero. Therefore, the stopper 141 is brought into contact with the upper side of one of the leg members 113 so that the leg members 113 cannot be further folded, thereby forming a structure capable of securing a desired minimum crossing angle.

In the present embodiment, the stopper 141 is configured to be rotatable about a rotation shaft 143 as shown in FIG. 17 . In addition, the stopper 141 is biased clockwise in the drawing by a spring 145 , that is, in a direction intended to be positioned between the leg body 111 and the leg member 113 . In addition, a recess 147 is provided on the outer lower side of the stopper 141 , and the stopper 141 can be separated from the leg member 113 by hooking a finger in the recess 147 and turning it counterclockwise.

Therefore, in a normal use state, the stopper 141 is located between the leg body 111 and the leg member 113 by the action of the spring 145 , and contacts the leg member 113 . This prevents the intersecting angle of X from becoming smaller than the necessary minimum intersecting angle. This performs height adjustment from stage 1 to stage 5 as described above.

In addition, when storing the infant seat device 1 , the stopper 141 is hooked with fingers and rotated counterclockwise in the figure to move outward and separate from the leg member 113 . Thereby, the leg member can be moved further upward, can be folded to a greater extent, and the height of the leg can be made lower. Thereby, the space of a stored state can be further reduced. At this time, the intersecting angle of X becomes very small, or becomes 0, but since the leg is not exerted such a large force when the infant seat device is not used, it is not inappropriate.

At this time, the back is fully laid down relative to the seat surface so that the seat, the back, and the pedals are generally in a horizontal state as a whole, so that the entire infant riding device can be kept flat and compact.

Embodiment 2

In the above-mentioned first embodiment, the size of the pedals is fixed, but it is also possible to provide a size-adjustable pedal 23 like the second embodiment shown in FIGS. 12 to 16 .

The pedal 23 has a substantially L-shaped vertical section. Furthermore, it is comprised by the pedal main body 81, and the sliding part 83 which can slide downward from the pedal main body 81 and extends. The pedal main body 81 constitutes the above-mentioned substantially L-shaped upper portion. The sliding portion 83 can extend downward with the pedal main body 81 as a guide member, and constitutes a substantially L-shaped lower portion. The sliding portion 83 is provided with an engaging mechanism 85 (see FIG. 14 ) that engages with the pedal body 81 and supports the sliding portion 83 , and a release lever 87 for releasing the engagement. Detailed description will be given below.

That is, the pedal main body 81 has two members 81A and 81B (see FIG. 14 , FIG. 15 and FIG. 16 ) for constituting a substantially L-shaped vertical portion. The above-mentioned two pieces of members 81A and 81B are combined from the front-rear direction, and form a box shape with an open bottom. The rear member 81B is attached to the front member 81A by a plurality of screws 82 (see FIG. 16 ). The sliding portion 83 is guided vertically by fitting the guide pin 89 provided on the member 81A of the pedal body 81 into the elongated hole 91 formed in the sliding portion 83 (see FIGS. 1 , 4 and 16 ). The guide pin 89 is fixed by a part of the above-mentioned screw 82 . A bearing 84 for mounting the rotating shaft 25 is provided on the upper end of the rear member 81B.

A release lever 87 capable of moving up and down is provided on the back surface of the lower center of the slide portion 83 . The operating portion 87A of the release lever 87 protrudes rearward from a window 83D (see FIG. 16 ) formed on a rear surface member 83C attached to the rear surface of the slide portion 83 . Engaging holes 93 are formed on the left and right of the release lever 87 , and one end 97 of an L-shaped engaging arm 95 is engaged with the engaging holes 93 . The engaging arm 95 is rotatable around a rotation shaft 99 at an L-shaped corner, and is urged clockwise in the drawing ( FIG. 14 ) by a spring 101 . The other end of the L-shape of the engaging arm 95 is configured to be engaged with an engaging hole 105 formed in a pipe 103 provided on the pedal body 81 side.

The tube 103 is arranged and fixed inside the pedal body 81 in the vertical direction, and has a plurality of engaging holes 105 in the longitudinal direction. A cylindrical holding portion 107 for holding the pipe 103 is formed on the sliding portion 83 , and the holding portion 107 slides in the longitudinal direction of the pipe 103 so that the sliding portion 83 can extend downward from the pedal body 81 .

The operation of adjusting the size of the pedal 23 will be described with reference to FIGS. 14 and 16 . When the release lever 87 is pulled downward, the engaging arm 95 is pulled by the releasing lever 87 to turn counterclockwise in the drawing ( FIG. 14 ), and the other end of the engaging arm 95 is engaged with the pipe 103 of the pedal main body 81 . The holes 105 are disengaged. In this state, the sliding portion 83 can slide downward from the pedal body 81 to extend. When the size of the longitudinal side portion of the pedal 23 reaches the desired length through this sliding, if the above-mentioned release lever 87 is separated, the engaging arm 95 is returned to the original position by the action of the spring 101, and is engaged with the pipe 103. in the engaging hole 105 of the The size of the pedal 23 can thus be adjusted.

Another embodiment

In the above-mentioned second embodiment, the size-adjustable pedal 23 is provided with the pipe 103 having the engaging hole 105 on the pedal main body 81 , and the engaging arm 95 engaged with the engaging hole 105 is provided on the sliding portion 83 . , but in another embodiment, the relationship between the pipe 103 and the engaging arm 95 can be reversed. That is, it is also possible to provide the pipe 103 on the sliding portion 83 and provide the engaging arm 95 on the pedal body 81 .

In addition, the engaging mechanism for supporting the sliding portion 83 with respect to the pedal main body 81 may employ various structures other than the tube 103 and the engaging arm 95 .

For example, claws (not shown) may be provided on the release lever 87 itself, and a plurality of engagement grooves for engaging with the claws may be formed in parallel in the vertical direction on the side of the pedal body 81 . The release lever 87 is urged by a spring (not shown) in a direction to engage with the engaging groove. Then, against this biasing force, the release lever 87 is released and disengaged from the engagement groove, enabling sliding.

In addition, in the first embodiment described above, the lower portion of the back portion 17 on the one end side of the interlocking lever 39 rotatably attached is formed in a convex arc shape, and the seat portion 11 side is similarly formed in a concave arc shape. However, in another embodiment, it does not necessarily need to be formed into the above-mentioned form, and it may also be such a form: any one of the short cylindrical protrusions can be fitted into the concave portion formed in another short cylindrical shape to rotate. In this case, the rotation hole 37 is provided in the other part near the short cylindrical protrusion.

In addition, in the above-mentioned first embodiment, the interlocking rod 39 is formed in a U-shape as a whole, but in another embodiment, instead of a U-shape, two or so interlocking rods 39 may be provided linearly.

In addition, in the above-mentioned first embodiment, the headrest 27 rotates according to the rotation angle of the back 17, but in another embodiment, the headrest 27 can be installed in a fixed state so as to be inclined at a predetermined angle with respect to the back 17. .

The effect of the invention

As mentioned above, with technical proposals 1, 2, 3, 4, 5, 6 or 7, when the back turns, the linkage rod installed at the lower part of the back pushes the back of the pedal to make the pedal turn, so it can be opposite to the back. The rotation angle of the pedal relative to the seat portion is set to an optimum angle corresponding to the rotation angle of the seat portion. Therefore, the baby's posture can always be kept in a comfortable state.

In claim 2, it is also possible to make the infant riding device have the function of a bed by making the seat part, the back part, and the pedals as a whole in a substantially horizontal state.

Since the whole including the step is formed in a substantially horizontal state, it is not necessary to slide the auxiliary sliding part from the front of the seat part in order to lay down the child as in the past.

In technical solution 3, it is also possible to make the baby's surroundings be surrounded by the L-shaped variable parts of the armrest part, the enclosure part, the headrest and the pedal in the state of lying down on the back, and the safety can be further improved.

In Claim 4, it is also possible to configure the link rod firmly with a simpler structure.

In claim 5, it is also possible to have sufficient strength by forming the lower portion of the back portion on which the linkage rod is mounted in an arc shape, and to be partially accommodated by the concave arc shape of each seat portion, thereby being able to Sufficiently withstand the high forces that accompany the rotation of the back.

In technical solution 6 or 7, the size of the pedal can also be adjusted according to the development of the child's body, so that the posture of the child can be kept in a more suitable state.

In claim 7, the sliding portion can also be slid from the pedal main body by the operation of the release lever, so that the size can be easily adjusted.

Claims (7)

1. A riding device for infants, characterized in that, The infant seat device includes: a back, which is rotatably provided behind the seat portion relative to the seat portion; a pedal rotatably provided in front of the seat portion; One end of the linkage rod is rotatably mounted on the lower part of the back, and the other end is rotatably mounted on the back of the pedal. 2. The infant seat device according to claim 1, wherein: In the state where the back is substantially on the same plane as the seat, the vertical edge portion of the approximately L-shaped longitudinal section of the pedal is raised to a position where it is substantially on the same plane as the seat. As a result of the linkage rod, the seat portion, the back, and the pedals are generally in a substantially horizontal state. 3. The infant seat device according to claim 1, wherein: An armrest part is integrally provided with the seat part at the left and right positions of the seat part, and an enclosure part is provided integrally with the back part continuously with the above-mentioned armrest part at the left and right positions of the back, and is provided in the state where the back is lying down. The headrest connection mechanism that makes the headrest stand up, the pedal has an approximately L-shaped longitudinal section, so that in the state where the back is lying down, the child's surroundings are surrounded by the L-shaped structure of the armrest, the surrounding part, the headrest, and the pedal. The lower part is surrounded. 4. The infant seat device according to claim 1, wherein: The linkage rod is U-shaped as a whole, and one end is rotatably installed on the lower part of the back. The two front ends of the U-shape are curved in an L-shape and rotatably fitted into the rotation hole on the back, and rotatably installed on the back of the pedal. The other end on the top keeps the central side of the U character on the back of the pedal in a rotatable manner. 5. The infant seat device according to claim 4, wherein: The left and right parts of the lower part of the back where the end of the linkage rod is rotatably installed is formed in a plate-shaped and convex arc shape, and the left and right parts of the seat part side that accommodates the lower part of the back are formed in a concave arc shape, Inner surfaces facing each other of the convex arc-shaped portions on the left and right are exposed from the seat portion, and a protrusion is formed on the exposed portion, and a rotation hole is formed on the protrusion. 6. The infant seat device according to claim 1, wherein: The step provided in front of the seat portion has a substantially L-shaped vertical section, and the size of the substantially L-shaped vertical side portion can be adjusted. 7. The infant seat device according to claim 1, 2, 3, 4, 5 or 6, wherein: The pedal is composed of a pedal body and a sliding part; the pedal body is mounted on the seat part and constitutes a substantially L-shaped upper part; the above-mentioned sliding part can slide downward with the pedal body as a guide member and constitutes a substantially L-shaped lower part, The sliding part is provided with an engaging mechanism that engages with the pedal body to prevent the above-mentioned sliding movement, and a release lever for releasing the engagement.

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