WO2015160174A1

WO2015160174A1 - Riding device for children

Info

Publication number: WO2015160174A1
Application number: PCT/KR2015/003737
Authority: WO
Inventors: 정병천; 정진범
Original assignee: (주)이디
Priority date: 2014-04-14
Filing date: 2015-04-14
Publication date: 2015-10-22
Also published as: KR20150118640A; KR101619368B1

Abstract

The present invention relates to a riding device for children, capable of being transformed as a child grows. The riding device for children, according to one embodiment of the present invention, comprises: a frame extended from the front to the rear so as to support a front wheel and a rear wheel; a seat part mounted on the frame, restrained by the frame so as to be displaced between the front and the rear, and including a first part, and a second part separated from the first part; a side guide part provided at one side part of the frame, and including a first guide part for restraining the first part of the seat part so as to guide the seat part such that the seat part is displaced between the front and the rear, and a second guide part for guiding the first part such that the first part is displaced in one direction between the direction perpendicular to the ground and the tangential direction of a path along which the first part of the seat part moves from at least one position of the first guide part; and a rotating shaft for restraining the rotation of the second part of the seat part such that the seat part is pulled toward the rear when the first part of the seat part is displaced along the second guide part from at least one position of the first guide part.

Description

Children's Riding Devices

The present invention relates to a child riding apparatus, and more particularly, to a child riding apparatus that can be modified according to the growth of the infant to the child.

Infants or children (hereinafter collectively referred to as infants) between 1 and 8 years of age use a stroller to safely move the infant on foot when out. In addition, riding toys such as tricycles or model cars are needed to give infants an exercise to develop leg strength in accordance with their growth. In general, infants 2 years of age or older have two demands at the same time as their growth, a safe means of transportation and exercise effects. However, conventionally, there is no example in which a passenger device that satisfies these two requirements is commercially available. In addition, even if there are two modes of mobility and movement effects, there is a problem that the use life is short or does not fully meet the two requirements because it is not adaptable to the change in height according to the growth of the infant.

Strollers or riding toys need to control the seat back angle in preparation for situations where the infant sleeps while at the same time inducing infants to be seated safely on board. For example, the back should be up when the child is awake or active, and the back of the seat should be flipped back to get a good night's sleep when the child is asleep. However, in the bicycle seat applied to the conventional tricycle, it is difficult to find an example in which a configuration such as the back of the seat is flipped commercially available.

Therefore, the technical problem to be solved by the present invention is that the adaptability to the change in height according to the growth of the infant has a long service life, induces safe seating at the same time as the stroller as well as riding toys, and at the same time the infant sleeps In order to prepare for the situation, the present invention provides an infant riding apparatus which can easily control the backrest angle of the seat.

According to an aspect of the present invention, there is provided a child riding device including a frame extending from a front side to a rear side to support a front wheel and a rear wheel; A seat portion mounted on the frame, the seat portion being constrained to the frame and displaced between the front and the rear and including a first portion and a second portion spaced from the first portion; A first guide portion provided on one side of the frame, the first portion of the seat portion being constrained to guide the sheet portion to be displaced between the front side and the rear side, and at least one point of the first guide portion A side guide part including a second guide part for guiding the first part to be displaced in one direction between a tangential direction of the trajectory of movement of the sheet part and a direction perpendicular to the ground; And a rotational shaft that constrains rotation of the second portion of the sheet portion such that the sheet portion is flipped to the rear side when the first portion of the sheet portion is displaced along the second guide portion at the at least one point of the first guide portion. It may include.

In some embodiments, the seat portion is slidably displaced on the frame. In addition, the first portion and the second portion of the sheet portion may be in an eccentric position without being disposed on a single line from the ground.

The first portion of the seat portion includes a first protrusion for engagement with the frame at a position in contact with the frame. The first guide portion or the second guide portion of the side guide portion may include a trench rail or a through slit coupled to the first protrusion.

In one embodiment, the first protrusion is provided by a rod member coupled through the first portion of the seat portion, wherein the rod member is a rod portion through the first portion of the seat portion and the rod portion is of limited length. It may have a head portion to be coupled through. In addition, in another embodiment, the rod member may be elastically coupled to the first portion, it is possible to elastically adjust the depth of the rod through.

At least one of the first guide portion and the second guide portion may include two or more stopper patterns including an uneven pattern, a wave pattern, or a groove pattern in an inner region where the first protrusion is in contact. The infant riding device may further include a rotational shaft guide portion provided between the front and the rear of the frame and guiding the rotational shaft to slide together while the first portion of the seat portion slides along the first guide portion. have.

The pivot shaft is provided by a second projection formed at a position in contact with the frame of the second portion of the seat portion, and the second projection may be constrained to the pivot shaft guide portion. In one embodiment, the second protrusion includes a rod member coupled through the second portion of the seat portion, wherein the rod member has a rod portion penetrating through the second portion of the seat portion and the rod portion is of limited length. It may have a head portion to be coupled through.

In some embodiments, the trajectory of the first portion displaced along the first guide portion and the trajectory of the second portion displaced along the pivot shaft guide portion may be parallel to each other such that the sheet portion slides on the frame. In addition, the first guide portion may be straight, and the second guide portion may be a circular arc around the rotation axis.

According to embodiments of the present invention, a side guide portion is provided in a frame extending from the front side to the rear side to support the front wheels and the rear wheels, the first portion of the seat portion being constrained and displaced by the side guide portion and the second of the seat portion. An infant riding apparatus is provided which is capable of displacing and flipping the seat portion on the frame by rotating the portion by being constrained by the rotational shaft. Accordingly, the infant riding device has a long service life by adapting to a change in height according to the growth of the infant, and induces a safe seating when the infant rides, such as a stroller as well as a riding toy, and at the same time the infant sleeps. In contrast, the backrest angle of the seat portion can be easily controlled.

1A to 1C are perspective views illustrating an infant riding apparatus having a seat part capable of adjusting a displacement and an angle on a frame according to an exemplary embodiment of the present invention.

Figure 2a is a side view showing a sheet portion according to an embodiment of the present invention, Figure 2b is a rear view of the sheet portion.

FIG. 3A illustrates a side guide part and a pivot shaft of a frame according to an embodiment of the present invention, and FIG. 3B illustrates a folding operation of the seat part by the interaction of the side guide part and the pivot shaft, FIGS. 3C and 3D. Shows a side guide according to other embodiments.

4A and 4B illustrate a side guide part and a pivot shaft guide part of a frame according to another embodiment of the present invention, and are views for explaining displacement and flipping operation of the seat part, respectively.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art, and the following examples can be modified in various other forms, and the scope of the present invention is It is not limited to an Example. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, the same reference numerals in the drawings refer to the same elements. As used herein, the term “and / or” includes any and all combinations of one or more of the listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. Also, as used herein, "comprise" and / or "comprising" specifies the presence of the mentioned shapes, numbers, steps, actions, members, elements and / or groups of these. It is not intended to exclude the presence or the addition of one or more other shapes, numbers, acts, members, elements and / or groups.

Although the terms first, second, etc. are used herein to describe various members, parts, regions, layers, and / or parts, these members, parts, regions, layers, and / or parts are defined by these terms. It is obvious that not. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Thus, the first member, part, region, layer or portion, which will be discussed below, may refer to the second member, component, region, layer or portion without departing from the teachings of the present invention.

1A to 1C are perspective views showing an infant riding apparatus 1 having a seat portion 8 capable of displacement and angle adjustment on a frame 10 according to an embodiment of the present invention.

Referring to FIG. 1A, the baby riding apparatus 1 has a frame 10 extending from the front side to the rear side. The front wheel 5_1 and the rear wheel 5_2 may be coupled to and supported by the frame 10. For example, the front wheel 5_1 may be coupled to the handle shaft 6S rotatably coupled to the frame 10. The rear wheel 5_2 may be fixed through the rear wheel support 5S fixed to the frame 10. In another embodiment, the rear wheel support 5S may be integrated with the frame or may be combined to allow folding in a separate configuration, and the present invention is not limited to these embodiments. The number of front wheels 5_1 and rear wheels 5_2 is appropriately selected so that the child riding apparatus 1 can be a two- or three-wheeled bicycle, or a three- or four-wheeled stroller. The front wheel 5_1 may also include a pedal 5P.

The infant riding device 1 can be operated by not only the infant directly driving the pedal 5P, but also by the guardian pushing the handle 7 behind. The handle 7 is fixed by the handle shaft 7S and coupled to the handle shaft 6S via a link member or wire (not shown) so that the guardian can directly steer the infant riding device 1.

A seat portion 8 for riding a child is mounted on the frame 10. The seat 8 is constrained to the frame 10 and can be moved back or retracted back to its original position as indicated by arrow A. FIG. The movement of this seat portion 8 will be described later in detail.

The seat portion 8 shown in FIG. 1A is in a state in which the seat portion 8 is maximally moved rearward on the frame 10 so as to secure a maximum distance from the front wheels 5_1. As indicated by arrow A, the seat portion 8 can be moved forward on the frame 10, and FIG. 1B shows the state in which the seat portion 8 has moved maximum forward. The movement of the seat portion 8 is not a method of separating the seat portion 8 and the frame 10 and then moving the frame portion 10 to fix the sheet portion 8, and the seat portion 8 is coupled to the frame 10. It can be achieved in a sliding manner while maintaining.

As such, the seat portion 8 is displaced between the front wheel 5_1 and the rear wheel 5_2 side, so that the distance between the seat portion 8 and the pedal 5P can be adjusted. It can cope with the growth change of the infant boarding in (8). For example, when the seat portion 8 is located at the position shown in FIG. 1B, the infant riding device 1 is suitable for a case where the height is small because the age of the infant is low, and the seat portion 8 is positioned at the position shown in FIG. 1A. If there is, infant riding device 1 is suitable for the case that the infant grows and the height is large. As described above, the infant riding apparatus 1 according to the exemplary embodiment of the present invention has an advantage that the service life is increased by the displaceable sheet part 8 in response to the elongation change according to the growth cycle of the infant.

As shown by arrow B of FIG. 1B, the seat portion 8 is rotated at a predetermined position on the frame 10 so that the seat portion 8 can be flipped to the rear side. 1C shows the seat portion 8 flipped to the rear side. When the infant sleeps or is young, the infant riding device 1 should allow the infant to rest in a stable and comfortable posture, and according to one embodiment the seat portion 8 is flipped to the rear side to secure such a resting posture. To be able. In one embodiment, the infant riding device 1 may further include a footrest 5S, which together with the seat 8 allows the infant to lie down comfortably. The rotation mechanism of the seat portion 8 will be described later.

FIG. 2A is a side view showing the seat portion 8 according to an embodiment of the present invention, and FIG. 2B is a rear view of the seat portion 8.

Referring to FIG. 2A, the sheet portion 8 may be composed of at least one or more pieces. For example, the seat portion 8 may include an undercarriage 8_1 that is constrained on the frame 8 and an upper structure 8_2 that is supported by the undercarriage 8_1 to provide a hip rest and / or a backrest. Can be. However, this is exemplary and the seat portion 8 may consist of a single body or of three or more parts. The seat portion 8 may be further coupled with a comfort and safety system such as the sunscreen 9_1 and the seat belt 9_2.

The sheet part 8 comprises two parts indicated by dotted lines, namely a first part 8_2a and a second part 8_2b spaced apart from the first part 8_2a. The first portion 8_2a and the second portion 8_2b are portions directly or indirectly coupled with the frame 10 for displacement and rotation of the seat portion 8 on the frame 10. To this end, the first portion 8_2a and the second portion 8_2b may have first and second protrusions for coupling with the frame 10 at a position in contact with the frame 10. As used herein, “directly” refers to coupling the first portion 8_2a or the second portion 8_2b, which is part of the seat portion 8, to the frame 10 through the protrusions. ”To be joined, a separate member is applied to the first part 8_2a or the second part 8_2b, which is part of the seat part 8, to provide the protrusion, and the first part 8_2a and the second part 8_2b. This coupled to the frame 10 through the separate member refers to the seat portion 8 shown in Figs. 2a and 2b start the rod members (8R_1, 8R_2) as the projection and the seat portion ( 8 shows an example in which the rod members 8R_1 and 8R_2 are indirectly engaged with the frame 10.

Although the above-described embodiment discloses a projection for the first part 8_2a or the second part 8_2b to be directly or indirectly coupled to the frame 10, on the contrary, a projection is formed on the frame and the seat part 8 is formed. There may be a relative pattern in which the protrusion is received and constrained.

The rod members 8R_1 and 8R_2 respectively penetrate the first portion 8_2a and the second portion 8_2b of the sheet portion 8 and contact the frame 10 to contact the frame 10 and thus the first portion 8_2a of the sheet portion 8. ) And the second portion 8_2b to the frame 10. Referring to FIG. 2B, the rod members 8R_1 and 8R_2 may have head portions H1 and H2 and rod portions R1 and R2, respectively, like bolts, thereby limiting the length of the seat portion 8 to the seat portion 8. Can be coupled through. These rod members 8R_1 and 8R_2 are exemplary, and at least one of the first portion 8_2a and the second portion 8_2b of the seat portion 8 is integrally projected to directly engage the frame 10. May be

The rod members 8R_1 and 8R_2 shown in FIG. 2B may be elastically fixed to the seat portion 8. For example, when pulling the head portions H1 and H2 of the rod members 8R_1 and 8R_2, the penetrating rod portions R1 and R2 retreat outward, and when the head portions H1 and H2 are released again, the rod portion R1 and R2 are elastically advanced to fix the sheet portion 8 to the corresponding portion of the frame 10. Alternatively, a screw thread may be formed in the rod portions R1 and R2 to achieve retraction and advancement thereof by rotating the head portions H1 and H2.

3A shows the side guide portion 11A and the pivot shaft 11S of the frame 10 according to an embodiment of the present invention, and FIG. 3B shows the interaction between the side guide portion 11A and the pivot shaft 11S. 3 shows the side guides 11B and 11C according to other embodiments.

Referring to FIG. 3B together with FIG. 3A, a side guide part 11A is formed on one side of the frame 10. A side guide having a symmetrical shape may also be provided on the opposite side not shown in FIG. 3A. The side guide part 11A includes a first guide part 11_1 and a second guide part 11_2 connected to the first guide part 11_1. The first guide portion 11_1 and the second guide portion 11_2 restrain the first portion 8R_1 of the sheet portion 8 of FIG. 2A, so that the first portion 8R_1 of the sheet portion 8 is frame 10. ) Is to be displaced.

The first guide part 11_1 and the second guide part 11_2 may include trench rails or through slits formed on one side of the frame 10. 3A discloses trench rail type guides 11_1 and 11_2. The trench rail may be provided by recessing the side portion 11S of the frame 10 by a predetermined depth, or forming two dam patterns 11d_1 and 11d_2 up and down as shown in the figure, or by combining them. . The protruding portion of the seat portion 8 may further include an induction portion for introducing into the first guide portion 11_1, and FIG. 3A discloses an induction portion formed in the first guide portion 11_1.

The first part 8R_1 of the seat part 8 may be restrained and displaced only along the inner region 11S defined by the dam patterns 11d_1 and 11d_2, that is, the first guide part 11_1. For example, one end (see R1 in FIG. 2B) of the rod member 8R_1 coupled to the first portion 8R_1 is constrained to move only in the inner region 11S by the dam patterns 11d_1 and 11d_2. . That is, one end R1 of the rod member 8R_1 is displaced only along the first guide portion 11_1 and does not escape outside the first guide portion 11_1. Thus, the first portion 8R_1 of the seat portion 8 can be coupled to the frame 10.

The dotted line T1 represents the trajectory at the time of displacement of the first portion 8R_1 of the sheet portion 8 by the first guide portion 11_1. As shown in FIG. 1A, when the seat portion 8 is at the rear side, one end R of the rod member 8R_1 coupled to the first portion 8R_1 of the seat portion 8 is indicated by a dotted line R1. It will be in the marked position. When the seat portion 8 is slid from the rear to the front, one end R of the rod member 8R_1 will be at the position indicated by the dashed line R2. When the one end R of the rod member 8R_1 is in the dotted line R2 position, the seat state shown in FIG. 1B may be in the seat state. In this case, the distance between the pedal (see 5P in FIG. 1A) and the seat portion 8 It is minimized and is a position that can be applied when the height of the infant is the smallest. The distance of the trajectory at the time of displacement of the first portion 8R_1 of the sheet portion 8 may be, for example, in the range of 30 mm to 150 mm. Within this range, the infant riding device may respond to changes in height of the infant on board.

As such, when the first guide portion 11_1 displaces the first portion 8R_1 of the sheet portion 8, the second portion 8R_1 of the sheet portion 8 will also displace. When the rod member penetrates through the second portion 8R_2, one end R2 of the rod member 8R_2 may be displaced along the dashed line T2. The dotted lines RS and RP indicate the positions of the rod portions R2 of the rod members 8R_2 corresponding to Ra and Rb, which are moving positions of the other rod members 8R_1, respectively.

Although the first guide part 11_1 shown in FIG. 3A is straight, the present invention is not limited thereto. For example, the first guide portion 11_1 may be curved, convex or concave toward the top of the frame 10. In this case, the trajectory T1 may be convex or concave toward the top of the frame 10, and the first portion 8R_1 of the seat portion 8 will be displaced by drawing a curved trajectory between the front and the rear.

The second guide portion 11_2 extends from the front side end portion 11X of the first guide portion 11_1, and the first portion 8R_1 of the sheet portion 8 is connected to the rod member 8R_1, for example. To be constrained and displaced. The dotted line T2 represents another trajectory of the first portion 8R_1 of the sheet portion 8 by the second guide portion 11_2. The trajectory of the dotted line T2 progresses in one direction between the direction perpendicular to the ground from the direction of the tangent TL of the dotted line T1 at the front end of the first guide portion 11_1.

In one embodiment, the trajectory of the dotted line T2 may be an arc having a center angle and a radius r of the angle θ about the rotational axis 11S. The angle θ may be in the range of 10 ° to 35 °, for example, but the present invention is not limited thereto. The pivot shaft 11S may be a member directly or indirectly connected to the second portion 8R_2 of the seat portion 8. In one embodiment, the pivot shaft 11S may be a rod portion R2 of the rod member 8R_2 that is penetrated to the second portion 8_2b of the seat portion 8.

The rotating shaft 11S may be provided with a suitable rotation guide member 11P to be fixed and rotated at a predetermined position. 3A non-limitingly illustrates an annular rotation guide member 11P. When the first portion 8R_1 of the sheet portion 8 is displaced along the dotted line T2 which is an arc along the second guide portion 11_2, the second portion 8R_2 of the sheet portion 8 by the pivot shaft 11S. While rotating while being fixed, the seat 8 is flipped backward.

In another embodiment, the dotted line T2 may be a straight line with a limited length rather than an arc, but the invention is not so limited. The second guide part 11_2 may have a trench pattern or a through slit so that the trajectory of the dotted line T2 can be defined. The second guide part 11_2 illustrated in FIG. 3A illustrates a trench pattern in which the region 11S is recessed. In some embodiments, the second guide portion 11_2 has a concave-convex pattern or a wave pattern on its surface as a stopper pattern, so that the displacement of the first portion 8R_1 of the seat portion 8 moving along the second guide portion 11_2 may be reduced. It may be possible to provide a stepped stop to provide a discontinuous folding angle to the seat portion 8. Alternatively, the second guide part 11_2 may include a groove pattern as a stopper pattern similar to the groove pattern of the first guide part 11_1 described later.

Referring to FIG. 3C, the side guide part 11B according to another embodiment may include a plurality of spaced apart grooves 11H formed in the inner region 11S of the first guide part 11_1 as a stopper pattern. In the grooves 11H, one end R1 of the rod member 8R_1 coupled to the first portion 8_2a of the seat portion 8 can be inserted. For example, when the rod member 8R_1 is elastically coupled to the first portion 8_2a of the seat portion 8 and pulls the head H1 of the rod member 8R_1 out of the seat portion 8, the rod member 8R_1. One end of the rod portion R1 of the rod portion is separated from the grooves 11H, and the sheet portion 8 is restrained by the first guide portion 11_1 on the frame 10 and can be freely displaced forward and backward. The guardian has placed the seat portion 8 at a position where the distance between the front wheel 5_1 and the seat portion 8 is considered to be appropriate in consideration of the infant's elongation, and then pulls the rod member 8R_1. When the back is placed again, the rod member 8R_1 is elastically restored and one end of the rod portion R1 of the rod member 8R_1 is inserted into the groove of any one of the grooves 11H, and the seat portion 8 is at that position. It may be locked and not displaced.

In another embodiment, displacement of the first portion 8R_1 of the seat portion 8 moving along the first guide portion 11_1 by placing an uneven pattern or a wave pattern instead of a pattern such as grooves of the first guide portion 11_1. To provide a phased locking state. In addition, grooves, irregularities, or wave patterns may also be formed in the second guide part 11_2 to provide a discontinuous folding angle.

In the above-described embodiment, the second guide portion 11_2 extends to the front side end portion 11x of the first guide portion 11_1, but the embodiment of the present invention is not limited thereto. For example, the second guide portion 11_2 may be a plurality of not one, and two or more discrete points where the first portion 8R_1 of the sheet portion 8 is displaced along the first guide portion 11_1. The second guide 11_2 may be provided for each. For example, referring to FIG. 3C, three second guides 11_2 may be disposed for each of the plurality of spaced grooves 11H formed in the inner region 11S of the first guide 11_1. .

According to the embodiment of FIG. 3D, the first portion 8R_1 of the seat portion 8 is displaced along the first guide portion 11_1 and each second guide portion at each point, for example the grooves 11H ( 11_2), the back plate of the seat portion 8 is flipped backward while rotating while the second portion 8R_2 of the seat portion 8 is fixed by the rotation shaft R2 at a position corresponding to each point. You lose. In some embodiments, grooves, irregularities or wave patterns (not shown) are formed on the inner sidewall of the pivot shaft guide 12 so that the rod member R2 can rotate without displacement at each of the points and is discontinuous. It may also provide a positive tilt angle.

4A and 4B show the side guide portion 11C and the pivot shaft guide portion 12 of the frame 10 according to another embodiment of the present invention, respectively, illustrating the displacement and flipping operation of the seat portion 8. It is a figure for following.

Referring to FIG. 4B together with FIG. 4A, a side guide part 11C may be formed on one side of the frame 10. The side guide part 11C is the side guide part mentioned above. Symmetrical side guides may also be provided on opposite sides that are not visible in FIG. 4A. The side guide portion 11C includes a first guide portion 11_1 of FIG. 3A and a second guide portion 11_2 connected to the first guide portion 11_1. As described above, the first guide portion 11_1 and the second guide portion 11_2 restrain the first portion 8R_1 of the sheet portion 8 so that the first portion 8R_1 of the sheet portion 8 is framed. To displace on (10).

While the first portion 8R_1 of the seat portion 80 is displaced as indicated by arrow A1 along the first guide portion 11 between the front and the rear on the frame 10, a pivot shaft, for example a seat A rotating shaft guide 12 may be provided which guides the rod member 8R_2 coupled to the second portion 8_2b of the section 8 to be displaced as indicated by arrow A2. In one embodiment, the rotational shaft guide portion 12 may be provided such that the trajectory of the first portion 8R_1 and the trajectory of the rotational shaft 8_2b displaced along the rotational shaft guide portion 12 are parallel to each other. For example, when the first guide part 11_1 of the side guide part 11C is straight, the pivot shaft guide part 12 may be straight like the first guide part 11_1. In other embodiments, the first guide 11_1 may be curved, convex or concave toward the top of the frame 10. In this case, the rotational shaft guide portion 12 may also be curved, convex or concave upward along the first guide portion 11_1.

The pivot shaft guide 12 may include a trench rail or a through slit formed on the frame 10. 4A and 4B disclose a pivot shaft guide 12 having a through slit. The through slit may be provided through a portion of the side of the frame 10, or may be provided in a form protruding on the top of the frame 10, as shown in Figure 4a, the present invention is not limited to this There may be variations.

Since the first portion 8_2a and the second portion 8_2b of the sheet portion 8 are respectively fixed by the side guide portion 11C and the rotational shaft guide portion 12, the sheet portion ( 8) can be displaced in a stable sliding manner between the rear and the front. In the above-described embodiments, the first portion 8_2a and the second portion 8_2b of the sheet portion 8 are eccentric without being disposed on a single vertical line from the ground. In this case, the seat portion can be more securely mounted on the frame 10 without rattling. However, if this is exemplary, the first and second portions of the seat portion may be arranged side by side on a single vertical line from the ground. For example, first and second portions of the seat portion 8 are defined on the line perpendicular from the ground, and rod members penetrated to the first and second portions may be provided.

A suitable rotation guide member can be provided so that the rod member 8R_2 functioning as the rotational shaft can rotate without displacing at a predetermined position. In the embodiment shown in Figs. 4A and 4B, the rotating shaft guide portion 12 also functions as the rotation guide member. To this end, when the first portion is located at the front end of the first guide portion, the area where the rotational shaft coupled to the second portion is located is a circular shape that can surround the rotational axis of the circular cross section to enable rotation of the rotational shaft. You can have an inner circle. The first portion 8R_1 of the sheet portion 8 is dotted with the dotted line T2 along the second guide portion 11_2 while rotating while the second portion 8R_2 of the sheet portion 8 is fixed by the rotation shaft 10S. When displaced together, the seat portion 8 is bent to the rear as a whole. In the embodiment shown in FIGS. 4A and 4B, a rotating shaft guide in the form of a through slit is disclosed, but may have a trench rail structure or other suitable structure.

The tricycle according to the above-described embodiment is exemplary, and may be applied to a stroller, a car toy or other hybrid riding device having this feature, which is combined with a backrest seat for a traveling infant, preferably a children's tricycle. .

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and alterations are possible within the scope without departing from the technical spirit of the present invention, which are common in the art. It will be apparent to those who have knowledge.

Claims

A frame extending from the front side to the rear side to support the front wheels and the rear wheels;

A seat portion mounted on the frame, the seat portion being constrained to the frame and displaced between the front and the rear and including a first portion and a second portion spaced from the first portion;

A first guide portion provided on one side of the frame, the first portion of the seat portion being constrained to guide the sheet portion to be displaced between the front side and the rear side, and at least one point of the first guide portion A side guide part including a second guide part for guiding the first part to be displaced in one direction between a tangential direction of the trajectory of movement of the sheet part and a direction perpendicular to the ground; And

A rotation shaft for restraining rotation of the second portion of the sheet portion such that the sheet portion is flipped to the rear side when the first portion of the sheet portion is displaced along the second guide portion at the at least one point of the first guide portion; Infant riding device comprising.
The method of claim 1,

And said seat portion slides and is displaced on said frame.
The method of claim 1,

At least one point of the first guide portion includes the front wheel side end portion of the first guide portion.
The method of claim 1,

And the first and second portions of the seat portion are in an eccentric position without being disposed on a single line from the ground.
The method of claim 1,

And said first portion of said seat portion comprises a first protrusion for engagement with said frame at a position in contact with said frame.
The method of claim 5,

The first guide portion or the second guide portion of the side guide portion of the infant ride device comprising a trench rail or a through slit coupled to the first projection.
The method of claim 5,

The first protrusion is provided by a rod member coupled through the first portion of the seat portion,

And the rod member has a rod portion penetrating the first portion of the seat portion and a head portion to allow the rod portion to penetrate through a limited length.
The method of claim 7, wherein

The rod member is elastically coupled to the first portion, it is possible to elastically adjust the depth of penetration through the rod portion.
The method of claim 6,

At least one of the first guide part and the second guide part includes at least two stopper patterns including a concave-convex pattern, a wave pattern, or a groove pattern in an inner region where the first protrusion contacts.
The method of claim 1,

And a rotating shaft guide portion provided between the front and the rear of the frame and guiding the rotating shaft to slide together while the first portion of the seat portion slides along the first guide portion.
The method of claim 10,

The pivot shaft is provided by a second protrusion formed at a position in contact with the frame of the second portion of the seat portion,

And a second protrusion is bound to the pivot shaft guide.
The method of claim 10,

The second protrusion includes a rod member coupled through the second portion of the seat portion,

And the rod member has a rod portion penetrating the second portion of the seat portion and a head portion allowing the rod portion to penetrate through a limited length.
The method of claim 10,

The trajectory of the first portion displaced along the first guide portion and the trajectory of the second portion displaced along the pivot shaft guide portion are parallel to each other such that the seat portion slides on the frame.
The method of claim 1,

And said first guide portion is straight, and said second guide portion is a circular arc around said axis of rotation.
The method of claim 1,

The infant riding device is a two-wheeled bicycle, tricycle or baby carriage.