KR102069105B1 - Stroller - Google Patents

Abstract

The baby carriage can be deformed between the use state and the folded state. The stroller includes a front wheel support element supporting the front wheel, a rear wheel support element connected to the front wheel support element so as to be rotatable, and a main link element connected to the front wheel support element so as to be relatively rotatable; It extends between the main link element and the rear wheel support element and also has a relative linkable link element for each of the main link element and the rear wheel support element.

Description

Stroller {STROLLER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a baby carriage that can be deformed between a use state and a folded state, and more particularly to a baby carriage having a simple configuration and effectively preventing the sheet from being soiled when folded and stored.

EP 1972522A2 (CN 101269667A) discloses a baby carriage which can be deformed between a use state and a folded state. The baby carriage disclosed in Patent Literature 1 includes a olfactory base 6, a handlebar 4 attached to the upper end of the olfactory seat rotatably, an anterior leg 2 attached to the handlebar so as to be rotatable, It has the cross members 8 and 9 which connect between the full-width 2 and the back-side 6. The baby carriage disclosed in Patent Document 1 rotates with respect to the sense of smell so that the handlebar falls to the rear side when the baby carriage is deformed from the use state to the folded state.

By the way, the seat in which an infant seats is normally supported by a handlebar and the support part which performs the same operation as a handlebar at the time of folding operation. Therefore, in the baby carriage disclosed in Patent Literature 2, the surface coming into contact with the infant of the sheet is exposed outward in a folded state in which the handlebar is collapsed to the rear side. For this reason, when the baby carriage is folded and stored, foreign matters or the like may adhere to the sheet, and the sheet may become dirty.

EP 1972522A2 (CN 101269667A)

This invention is made | formed in view of such a point, Comprising: It aims at providing the baby carriage which has a simple structure, and can effectively suppress that a sheet becomes dirty when folded and stored.

Further, the baby carriage disclosed in EP 1972522 (CN 101269667) is arranged at a position where the front wheel and the rear wheel are separated from each other in a folded state. Such a baby carriage can not be stably self-supported in a folded state. As a result, the handleability of the folded baby carriage was bad, and the storage space required for the folded baby carriage was widened. If the problem is solved by the baby carriage according to the present invention, it is more convenient.

The first stroller according to the present invention,

As a stroller which was deformable between the use state and the folded state,

A front wheel support element supporting the front wheels,

A rear wheel support element connected to the front wheel support element so as to be rotatable and supporting a rear wheel;

A main link element connected to the front wheel support element in a rotatable manner;

A linking link element extending between the main link element and the rear wheel support element and further rotatable relative to each of the main link element and the rear wheel support element.

In the first stroller according to the present invention,

The connection link element,

Rotatably attached to a portion of the main link element that is lower in the use state than the center of rotation relative to the front wheel support element,

Among the rear wheel support elements, the protruding portions may be rotatably attached to the extended protrusions that are closer to the side from the rear wheel than the center of rotation relative to the front wheel support element.

The 1st baby carriage by this invention may further be equipped with the handle connected with the said main link element so that relative rotation is possible. Alternatively, in the first baby carriage according to the present invention, the main link element may constitute a handle.

In the first baby carriage according to the present invention, when deforming from the use state to the folded state, a portion of the main link element extending upward from the relative rotation center with the front wheel support element in the use state is moved forward. Even if the main link element rotates with respect to the front wheel support element so that it collapses, a portion of the main link element extending upward from the relative rotation center with the front wheel support element in the use state approaches the front wheel support element. do.

In the first stroller according to the present invention, the front wheel support element and the rear wheel support element may be rotated relative to each other so that the front wheel and the rear wheel approach each other when deforming from the use state to the folded state.

In the first stroller according to the present invention,

The main link element is in engagement with a portion of the front wheel support element positioned between the front wheel support element supporting the front wheel and the center of rotation between the front wheel support element and the main link element,

The relative rotation of the main link element and the front wheel support element may be restricted by engaging the main link element and the portion of the front wheel support element.

In the first stroller according to the present invention,

The front wheel support element has a full length member extending at least between a relative rotation center with the main link element and a position for supporting the front wheels, and a connection member provided on the full width member,

The rear wheel support element is rotatably attached to the connection member,

The main link element may be engaged with the connecting member, and the relative rotation of the main link element and the front wheel support element may be restricted by engaging the main link element and the front wheel support element.

In the first baby carriage according to the present invention, a seat support plate facing the buttocks of the infant riding in the baby carriage may be provided, and the linking link element may be formed by a seat support plate.

In the first stroller according to the present invention,

A pair of said main link elements are provided on both sides of said seat support plate,

A pair of the rear wheel support elements are provided on both sides of the seat support plate,

A pair of the front wheel support elements are provided on both sides of the seat support plate,

Both side portions of the seat supporting plate each constitute the connecting link element, and are connected to the corresponding side main link element and the rear wheel support element in a rotatable manner,

Each front wheel support element may be connected to the main link element and the rear wheel support element of the corresponding side so that relative rotation is possible.

In the first baby carriage according to the present invention, a holder is disposed to face a surface on the side opposite to the side facing the buttocks of the seat support plate, and between the holder and the seat support plate, A storage space may be formed that is open at least rearward in the expanded state.

In the 1st baby carriage by this invention, the handle may be provided in the back part of the said seat part support plate.

In the first baby carriage according to the present invention, the handle may be protruded upward from the seat portion support plate in the folded state of the baby carriage.

In the first baby carriage according to the present invention, a luggage hook may be provided on the seat support plate.

The first baby carriage according to the present invention further includes a seat having a seat portion, a backrest portion connected to the seat portion, and a sidewall portion provided on the side of the seat portion and the backrest portion,

The rear wheel support element has an extension protrusion which extends beyond the center of rotation relative to the front wheel support element and protrudes to the side opposite to the side supporting the rear wheel,

The said side wall part of the said sheet | seat may be attached to the part which extends upwards in the said use state from the center of rotation of the said extension protrusion part and the said front wheel support element among the said main link elements.

The second stroller according to the present invention,

As a stroller which can be deformed between the use state and the folded state,

Front wheel support element which supported the front wheel,

A rear wheel support element supporting a rear wheel and rotatable relative to the front wheel support element,

A handle rotatable relative to the front wheel support element and the rear wheel support element,

When deforming from the use state to the folded state, the handle and the front wheel support element approach each other, and the front wheel and the rear wheel approach each other so that the handle pivots so that the handle falls forward. The front wheel support element and the rear wheel support element rotate relative to each other.

The second baby carriage according to the present invention further includes a seat having a seat portion, a backrest portion connected to the seat portion, and a sidewall portion provided on the side of the seat portion and the backrest portion,

The rear wheel support element has an extension protrusion which extends beyond the center of rotation relative to the front wheel support element and protrudes to the side opposite to the side supporting the rear wheel,

The said side wall part of the said sheet | seat may be attached to the part which extends upwards in the said use state from the center of rotation of the said extended protrusion part and the said front wheel support element among the said handles.

The first baby carriage or the second baby carriage according to the present invention further includes a seat having a seat and a backrest connected to the seat,

The rear wheel support element has an extension protrusion which extends beyond the center of rotation relative to the front wheel support element and protrudes to the side opposite to the side supporting the rear wheel,

The sheet may be supported by the extension protrusion.

In the 1st baby carriage or 2nd baby carriage by this invention, the angle which the part which supports the said sheet | seat of the said extended protrusion part in the front-back direction at the side view in a use state makes the said rear wheel support element. The part located between the position which supports the said rear wheel and the relative rotation center with the said front wheel support element may be made smaller than the angle made with respect to a front-back direction.

In the 1st baby carriage or 2nd baby carriage by this invention, the said extended protrusion part may be bent so that the angle formed with respect to the front-back direction at the side view in a use state may become small at the front side.

In the first baby carriage or the second baby carriage according to the present invention, in the state of being folded, in the state where the front wheel and the rear wheel are grounded to the ground plane, the center of rotation of the front wheel support element and the rear wheel support element is It may be located between the ground position of the front wheel and the ground position of the rear wheel in the direction along the ground plane.

In the first baby carriage or the second baby carriage according to the present invention, the baby carriage may be self-supporting in the folded state.

According to the present invention, the baby carriage has a simple configuration, and when the baby carriage is folded and stored, it is possible to effectively prevent the sheet from being soiled.

BRIEF DESCRIPTION OF THE DRAWINGS The figure for demonstrating one Embodiment of this invention is a perspective view which shows the baby carriage in a use state.
Fig. 2 is a perspective view showing the baby carriage main body of the baby carriage of Fig. 1 in a use state.
Fig. 3 is a side view showing the baby carriage body of Fig. 2 in a use state from the side;
Fig. 4 is a partial perspective view showing the baby carriage main body in use.
5 is a side view showing the baby carriage main body in a folded state.
6 is a perspective view of the baby carriage main body in a folded state;
Fig. 7 is a partial perspective view showing the baby carriage main body being deformed from the used state into the folded state.
8 is a cross-sectional view taken along the line VIII-VIII in FIG. 5.
FIG. 9 is a diagram schematically illustrating a component of a baby carriage main body in a use state from the side; FIG.
FIG. 10 is a diagram schematically illustrating a component of a baby carriage main body in a folded state from the side; FIG.
FIG. 11 is a perspective view corresponding to FIG. 2, illustrating a modification of the baby carriage main body. FIG.
FIG. 12 is a perspective view corresponding to FIG. 2, illustrating another modification of the baby carriage main body. FIG.
FIG. 13 is a diagram corresponding to FIG. 9, schematically illustrating components of the baby carriage main body of FIG. 12 from the side; FIG.
FIG. 14 is a perspective view corresponding to FIG. 1, illustrating another modification of the baby carriage main body. FIG.
FIG. 15 is a perspective view corresponding to FIG. 2, illustrating the baby carriage main body of FIG. 14. FIG.
FIG. 16 is a diagram corresponding to FIG. 9 showing the baby carriage main body of FIG. 15; FIG.
FIG. 17 is a side view corresponding to FIG. 5, showing the baby carriage body of FIG. 15 in a folded state; FIG.
FIG. 18 is a perspective view corresponding to FIG. 6, illustrating the baby carriage body of FIG. 15 in a folded state; FIG.

EMBODIMENT OF THE INVENTION Below, one Embodiment of this invention is described with reference to FIGS.

In FIG. 1, the whole structure of the baby carriage 10 in one Embodiment is shown. The illustrated baby carriage 10 includes a baby carriage main body 15 having a front wheel 21 and a rear wheel 31, a seat (seat unit) 70 attached to the baby carriage main body 15, and a baby carriage main body 15. It has an attached awning 75. In this baby carriage 10, an infant sits or sleeps on the seat 70. In figures other than FIG. 1, FIG. 9, FIG. 10, FIG. 14, and FIG. 16, the stroller 10 is shown in the state which removed the sheet | seat 70 for the convenience of understanding. The seat 70 is connected to the seat portion 71, the seat portion 71 connected to the seat portion 71 and positioned behind the seat portion 71, and the seat portion 71 and the backrest portion 72. It has the left and right side wall part 73 which protruded in both sides. The baby carriage 10 has a generally symmetrical configuration centering on a widthwise center plane extending along the front-rear direction as a whole.

As shown in FIGS. 1-3, 5, 6, 9, and 10, the baby carriage 10 demonstrated here is deformable between a use state (expanded state) and a folded state. As shown, the baby carriage 10 in the folded state is downsized in the front-rear direction and the width direction as compared with the baby carriage 10 in the use state so as to have a dimension suitable for storage or the like. Many components of the baby carriage main body 15 are connected directly or indirectly so that relative rotation is possible in order to enable folding. In addition, the sheet 70 is formed using a flexible cloth, a mesh material, or the like, and is deformed between the use state and the folded state according to the operation of the baby carriage main body 15.

In addition, in this specification, the terms of "before", "after", "upper", and "lower" with respect to the baby carriage 10 and the baby carriage main body 15 are used state (development state), unless there is a special instruction. It means "before", "after", "upper" and "lower" on the basis of the infant riding on the stroller 10 which is present. Therefore, "front-back direction" is corresponded to the direction which connects the lower left side and the upper right side of the paper surface in FIG. In addition, unless otherwise indicated, "front" is a side to which a boarding infant faces, and the lower left side of the paper surface in FIG. 1 becomes a "front side." In addition, the "up-down direction" is a direction orthogonal to the front-back direction, and orthogonal to the ground plane of the baby carriage 10. Therefore, when the ground plane of the baby carriage 10 is a horizontal plane, "up-down direction" refers to a vertical direction. In addition, a "horizontal direction" and a "width direction" are directions orthogonal to either of a "front-back direction" and a "up-down direction". In addition, "right" and "left" mean "right" and "left" in the horizontal direction or the width direction based on the infant who rides in the baby carriage 10, respectively.

First, the baby carriage main body 15 is explained in full detail, and the component attached to the baby carriage main body 15 is demonstrated after that.

As shown in FIGS. 1-10, the stroller main body 15 can rotate relative to the front wheel support element 20 which supported the front wheel 21 rotatably, and the front wheel support element 20, and also the rear wheel ( 31 has a rear wheel support element 30 rotatably supported, and a handle 50 rotatable relative to the front wheel support element 20 and the rear wheel support element 30.

In the example shown, for example, as shown in FIGS. 2-7, the handle 50 connects a pair of main parts 51 and the pair of main parts 51 arrange | positioned at the left and right. The connection part 52 is comprised. Each main part 51 comprises the main link element 40 which functions as a link material when the baby carriage main body 15 deforms between a use state and a folded state. That is, in the illustrated embodiment, the main link element 40 constitutes a part of the handle 50. For example, as shown in FIGS. 2-7, the stroller main body 15 has a pair of front wheel support elements 20 connected to the main link element 40 of the corresponding side so that relative rotation is possible, A pair of rear wheel support elements 30 are provided which are connected to the front wheel support element 20 on the corresponding side so as to be rotatable relative to each other. In addition, the stroller 10 extends between the main link element 40 and the rear wheel support element 30 on the corresponding side, and is further adapted to each of the main link element 40 and the rear wheel support element 30 on the corresponding side. It further has a connection link element 60 which can be rotated relative to each other.

As can be well understood from FIGS. 3 and 9, each front wheel support element 20 is rotatably holding the front wheel 21 in the lower part, in particular in the lower part in the illustrated example. Each front wheel support element 20 has a full width member 23 that functions as a full width for rotatably supporting the front wheels 21, and a first connecting member 25 attached to an intermediate portion of the full width member 23. have. The angle member 23 extends at least from the position which supports the front wheel 21 to the relative rotation center RC2 of the front wheel support element 20 and the main link element 40. In the illustrated example, the embossing member 23 is rotatably connected to the main link element 40 at the upper end while supporting the front wheel 21 at the lower end. The embossing member 23 can be comprised, for example with a metal pipe, such as an aluminum alloy, and the caster mechanism fixed to one end of the said pipe, and supporting a wheel rotatably and rotatably.

The first connecting member 25 is fixed to the full width member 23. And as shown in FIG. 4, each front wheel support element 20 is pivotally attached to the rear wheel support element 30 located in the same side by the 1st connection member 25 so that rotation is possible. In the example shown, the 1st connection member 25 protrudes from the full width member 23 along the surface extended in the front-back direction. On the other hand, the rear wheel support element 30 is disposed inside the width direction with respect to the front wheel support element 20. As shown in FIG. 4, the first connecting member 25 and the rear wheel support element 30 are pivotally attached by penetrating the shaft member 28. In other words, in the illustrated example, the front wheel support element 20 and the rear wheel support element 30 are directly connected. However, it is not limited to this example, The front wheel support element 20 and the rear wheel support element 30 may be indirectly connected through the other member.

As can be well understood from FIGS. 3 and 9, each rear wheel support element 30 keeps the rear wheels 31 rotatable in the lower part, in particular in the lower part in the illustrated example. Each rear wheel support element 30 has an olfactory member 33 that functions as a olfactory for rotatably supporting the rear wheel 31. The olfactory member 33 extends at least from the position which supports the rear wheel 31 to the relative rotation center RC1 of the front wheel support element 20 and the rear wheel support element 30. The olfactory member 33 can be comprised, for example with metal pipes, such as an aluminum alloy, and the holding mechanism fixed to one end of the said pipe, and holding a wheel rotatably.

In the example shown, the olfactory member 33 supports the rear wheels 31 at the bottom, and the rear wheels 31 beyond the relative center of rotation RC1 of the front wheel support element 20 and the rear wheel support element 30. It protrudes on the opposite side to the side supporting the. That is, the olfactory member 33 includes a rear portion 34 including a holding mechanism for rotatably supporting the rear wheel 31, and the relative rotation center RC1 of the front wheel support element 20 and the rear wheel support element 30. ), It has an extension protrusion 35 which is located on the side opposite to the olfactory part 34. As understood from FIGS. 1 and 9, the seating portion 71 of the seat 70 is attached to the extension protrusion 35. That is, in the illustrated form, the rear wheel support element 30 can support the seat 71 of the seat 70. Therefore, the exclusive member for supporting the seating part 71 of the sheet | seat 70 can be abbreviate | omitted. As a result, the number of parts constituting the baby carriage 10 can be reduced to simplify and lighten the configuration of the baby carriage 10.

Moreover, as shown in FIG. 9, in the side view of the baby carriage in a use state, the angle (theta) a which the part which supports the sheet | seat of the extended protrusion part 35 with respect to the front-back direction is among the rear wheel support elements 30. As shown in FIG. The back portion 34 is smaller than the angle θb formed with respect to the front-rear direction. According to this structure, the extended protrusion part 35 can function effectively as a frame which supports the seat part 71, and can support the seat part 71 in an appropriate direction.

In the form shown, as can be understood from FIG. 9, the extension protrusion part 35 is bent so that the angle formed with respect to the front-back direction in the side view of the baby carriage in a use state may become small on the front side. In the form shown in particular, the extended protrusion part 35 is bent at the side view of the baby carriage in a use state, and the extended protrusion end part 36 and the extended protrusion base part with a bending point between them. Has (37) The extended protruding base 37 is connected to the olfactory part 34. The extended protruding end 36 is connected to the extended protruding base 37 from the front. The seating portion 71 of the sheet 70 is attached to the extended protruding end portion 36 having a small angle θa with respect to the front-rear direction.

Next, the main link element 40 which comprises the main part 51 of the handle 50 is demonstrated. The main link element 40 has the main link part 41 which comprises the lower part of the main part 51 of the handle 50, and the 2nd connection member 43 attached to the main link part 41. FIG. . The main link portion 41 may be composed of a substantially U-shaped material, for example, a pipe made of aluminum alloy, which forms the main portion 51 and the connecting portion 52 of the handle 50.

The second connecting member 43 is fixed to the main link portion 41 of the main link element 40. And as shown in FIG. 4, each main link element 40 is pivotally attached to the front wheel support element 20 located in the same side by the 2nd connection member 43 so that rotation is possible. In the example shown, the second connection member 43 protrudes from the main link portion 41 along the surface extending in the front-rear direction. And the arrangement position in the width direction of the main link part 41 and the front-wheel support element 20 connected via the 2nd connection member 43 is the same.

As shown in FIG. 4, the second connection member 43 includes a main body portion 44 fixed to the main link portion 41 and a pair of support wall portions extending and protruding from the main body portion 44 in the front-rear direction ( 45). The encapsulation member 23 of the front wheel support element 20 is disposed between the pair of support wall portions 45. The shaft member 46 penetrates the support wall portion 45 of the second connecting member 43 and the embossed member 23 of the front wheel support element 20, thereby providing a front wheel support element 20 and a main link element 40. Is pivoted. That is, in the illustrated example, the front wheel support element 20 and the main link element 40 are directly connected. However, it is not limited to this example, The front wheel support element 20 and the main link element 40 may be indirectly connected through the other member.

In the form shown, the upper end part of the embossing member 23 is arrange | positioned between the pair of support wall parts 45, and is penetrated by the shaft member 46. As shown in FIG. As shown in FIG. 4, the end member 24 is fitted into the upper end portion of the embossing member 23, and the end member 24 is coupled to the embossing member 23 along with the shaft member 46. It keeps penetrating by. The end member 24 has an arc-shaped outline in side view. More specifically, the end member 24 is, in side view, an arc around the position penetrated by the shaft member 46 of the embossing member 23, in other words, the front wheel support element 20 and the main link element. It has the outline extended along the circular arc centered on the relative rotation center RC2 of 40. As shown in FIG. This end member 24 fills the gap between the upper end of the embossing member 23 and the main body portion 44 of the second connecting member 43, so that the front wheel support element 20 and the main link element 40 are opposed to each other. At the time of rotation, clothing and the like can be effectively prevented from being caught between the upper end of the embossed member 23 and the main body 44 of the second connecting member 43.

Moreover, in the form shown, in the use state of the baby carriage 10, the main link element 40 is a position which supports the front wheel 21 of the front wheel support element 20 among the front wheel support elements 20, and a front wheel. It becomes possible to engage with the part which becomes between the support center 20 and the relative rotation center RC2 of the main link element 40. FIG. As the main link element 40 and the front wheel support element 20 are engaged with each other, the relative rotation of the main link element 40 and the front wheel support element 20 is restricted. More specifically, in the use state of the baby carriage 10, the upper portion of the front wheel support element 20 and the lower portion of the main link element 40 extend substantially parallel to each other and extend parallel to each other. At both ends of the region, the front wheel support element 20 and the main link element 40 are adapted to be connected to each other. Then, by connecting the front wheel support element 20 and the main link element 40 to each other, the relative rotation of the main link element 40 and the front wheel support element 20 is restricted.

As will be described later, the stroller main body 15 can be deformed between the use state and the folded state by relatively rotating each component. For this reason, according to this embodiment, the part which extends along each other of the main link element 40 and the front wheel support element 20 can be connected in two places separated along the longitudinal direction, and, accordingly, the main link element The relative rotation of the 40 and the front wheel support element 20 can be stably regulated, so that the stroller 10 can be stably maintained in use.

In a particularly illustrated embodiment, the lower portion of the main link element 40, in particular the lower end of the main link element 40, is able to engage the first connecting member 25 of the front wheel support element 20. . When the main link element 40 and the front wheel support element 20 are engaged, by the second connecting member 43 of the main link element 40 and the first connecting member 25 of the front wheel support element 20, The front wheel support element 20 and the main link element 40 are connected at two places, and the relative rotation of the front wheel support element 20 and the main link element 40 is regulated. According to this present embodiment, the first connecting member 25 of the front wheel support element 20 is responsible for both the connection with the rear wheel support element 20 and the engagement with the main link element 40. For this reason, the number of parts which comprise the baby carriage 10 can be reduced, and the structure of a baby carriage can be simplified and lightweight.

As a specific structure, as shown to FIG. 5 and FIG. 6, the protrusion part 42 is provided in the lower end of the main link part 41 of the main link element 40. As shown in FIG. The protrusion 42 is pressurized to protrude from the lower end of the main link portion 41. This projecting part 42 is connected with the operation piece 41a provided in the lower end part of the main link part 41, and the projecting part is slid by sliding the operation piece 41a with respect to the main link part 41. The 42 can be immersed in the main link portion 41. 3 and 4, the cylindrical part 26 is formed in the 1st connection member 25 of the front wheel support element 20. As shown in FIG. As shown in FIG. 7, the cylindrical part 26 has the front-end | tip open and partitions the receiving hole 27 which accommodates the protrusion part 42. As shown in FIG. In such a configuration, the projection 42 of the main link element 40 is fitted into the receiving hole 27 of the first connecting member 25, thereby providing a support for the front wheel support element 20 and the main link element 40. Relative rotation is regulated.

In addition, the structure for engaging the front wheel support element 20 and the main link element 40 is not limited to the example described here, but may be configured in various forms. In addition, the operation piece 41a is only an example as a means for operating the protrusion part 42, and can be changed suitably. For example, the remote control means for operating the protrusion part 42 is provided in the connection part 52 of the handle 50, and the remote control means in the connection part 52 and the main part 51 of the handle 50 are provided. A transmission means (for example, a wire) for transmitting the operation to the protrusion 42 may be provided.

Next, the connection link element 60 will be described. As best seen in FIGS. 4 and 7, the connecting link element 60 on the right extends between the main link element 40 and the rear wheel support element 30 disposed on the right side, and also the main link element ( Relative rotation is possible with respect to 40) and rear wheel support element 30, respectively. Similarly, the connecting link element 60 on the left side extends between the main link element 40 and the rear wheel support element 30 arranged on the left side, and further, respectively, the main link element 40 and the rear wheel support element 30. It is possible to rotate relative to. Thus, in the present embodiment, the main link element 40 is rotatably connected to the rear wheel support element 30 via the connecting link element 60. The connecting link element 60 may for example consist of a metal plate.

In the form shown, as best seen in FIGS. 4 and 7, each linking link element 60 is, first of all, of the rear wheel support element 30 of the rear wheel support element 30 and the front wheel support element 20. It is rotatably attached to the extension protrusion part 35 which becomes a side separated from the rear wheel 31 from the relative rotation center RC1. More specifically, the connecting link element 60 is pivotally attached through the rear portion of the extending projecting end 36 of the extending protrusion 35 and the shaft member 61. Thus, in the side view of the baby carriage 10 in use, the relative pivot center RC3 of the rear wheel support element 30 and the link link element 60 is the rear wheel support element 30 and the front wheel support element 20. Is located ahead of and relative to the center of rotational rotation RC1.

In the form shown, as best seen in FIGS. 4 and 7, each linking link element 60 has a main link portion of the main link element 40 in side view of the baby carriage 10 in use. 41 is rotatably attached to the part which becomes below the relative rotation center RC2 of the front wheel support element 20 and the main link element 40. FIG. More specifically, the connection link element 60 is pivotally attached through the shaft member 62 and the part which becomes below the position to which the 2nd connection member 43 of the main link part 41 was attached. In the side view of the baby carriage 10 in the use state, the relative rotation center RC4 of the main link element 40 and the link link element 60 is relative to the rear wheel support element 30 and the link link element 60. It is located behind the center of rotation RC3.

The baby carriage main body 15 is a member extending in the lateral direction (width direction), and is a first front side connecting member 65 and a second connecting between the full width members 23 of the pair of front wheel support elements 20. It has the front side connecting member 66 and the back side connecting member 67 which connects between the olfactory part 34 of the pair of rear wheel support elements 30. Among these, the 2nd front side connection member 66 functions as a footrest. In this embodiment, by these members, a pair of front wheel support elements 20, a pair of rear wheel support elements 30, a pair of main link elements 40 and a pair of link link elements 60 are provided. , Respectively, when they are deformed between the use state and the folded state, they remain separated at regular intervals.

The baby carriage main body 15 which has the above whole structure can be folded in a folded state from a use state by rotating each component relative. Specifically, first, by operating the operation piece 41a, the engagement of the projection 42 of the main link element 40 and the receiving hole 27 of the front wheel support element 20 is released. This operation enables relative rotation of the front wheel support element 20 and the main link element 40.

Next, as shown in FIG. 7, the portion of the main link element 40 extending upward from the relative rotation center RC2 with the front wheel support element 20 in the use state, that is, the relative rotation center RC2. The main link element 40 is rotated with respect to the front wheel support element 20 in the direction in which the portion located upwards falls down to the front side. By this rotation operation, the part which extended upward from the relative rotation center RC2 with the front wheel support element 20 among the main link elements 40 in a use state approaches the rear wheel support element 20. In other words, the end part (upper end part) of the main link element 40 which becomes the side separated from the front wheel 21 in the use state approaches the front wheel 21. In the form shown, in the side view of the baby carriage 10, the connecting portion 52 of the handle 50 approaches the front wheel 21 of the front wheel support element 20 from the front side.

In accordance with this operation of the front link support element 20 of the main link element 40, the rear wheel support element 30 connected to the main link element 40 via the link link element 60 also acts on the other components. do. As described above, the connection link element 60 is in the use state of the baby carriage 10 more than the relative rotation center RC2 of the front wheel support element 20 and the main link element 40 among the main link elements 40. It is rotatably attached to the part which becomes downward, and is spaced apart from the rear wheel 31 than the relative rotation center RC1 of the rear wheel support element 30 and the front wheel support element 20 among the rear wheel support elements 30. It is rotatably attached to the extended protrusion part 35 which becomes a side. Thus, when the main link element 40 rotates with respect to the front wheel support element 30 to approach the front wheel support element 20 so as to tilt forward, in the side view shown in FIGS. 5 and 10, the main link element 40 ) And the relative rotation center RC4 of the connecting link element 60 are pulled upward. Thus, in the side view shown in FIGS. 5 and 10, the rear wheel support element 30 supports the front wheels such that the relative pivot center RC3 of the link link element 60 and the rear wheel support element 30 is also pulled upward. The element 20 is rotated. That is, the rear wheel support element 30 is rotated with respect to the front wheel support element 20 so that the rear wheel 31 may approach the front wheel 21 along the front-rear direction by the connection link element 60.

By the above procedure, the baby carriage main body 15 can be folded so that the main link element 60, the front wheel support element 20, and the rear wheel support element 40 approach each other. By folding the baby carriage main body 15 in this way, the dimension of the baby carriage main body 15 can be downsized in both front-back direction and an up-down direction. In addition, when folding from the use state to the folded state, since the front wheel support element 20 and the rear wheel support element 30 rotate relative to each other so that the front wheel 21 and the rear wheel 31 approach each other along the front-back direction, FIG. As shown in FIG. 5 and FIG. 6, the front wheel 21 and the rear wheel 22 can be grounded to allow the baby carriage main body 15 (stroller car 10) in a folded state to stand on its own. When the baby carriage 10 can be self-supporting in a folded state, it is very preferable from the viewpoint of a storage space and the like.

According to the above-described configuration of the baby carriage main body 15, in the side view of the baby carriage main body 15 in the folded state, the front wheel support element 20 in a state where the front wheel 21 and the rear wheel 31 are grounded to the ground plane. And the relative rotation center RC1 of the rear wheel support element 30 is the ground position of the front wheels 21 (ie, the rotation center of the front wheels 21) and the rear wheels 31 in the direction along the ground plane (that is, the front-rear direction). Can be located between the ground position (ie, the center of rotation of the rear wheel 31). According to this aspect, the baby carriage main body 15 (stroller carriage 10) in a folded state can be made to stand more stably.

In addition, in the form shown, the engagement claw (engagement piece) 47 which can be elastically deformed is formed by the part of the 2nd connection member 43 used as the left side. As shown in FIGS. 1-3, the engagement claw 47 is located above the main-body part 44 of the 2nd connection member 43 in the use state of the baby carriage 10, and the front wheel support element 20 is shown. Is separated from. On the other hand, in the folded state of the baby carriage 10 in which the main link element 40 is rotated with respect to the front wheel support element 20, as shown in FIG. 5, the engagement claw 47 is the second connection member 43. It is located below the main-body part 44 of, and as shown in FIG. 8, it engages with the upper part of the embossed member 23 of the front wheel support element 20. As shown in FIG. The engagement of the front wheel support element 20 and the main link element 40 is restricted by the engagement of the engagement claw 47 and the embossed member 23 shown in FIG. 8, so that the baby carriage 10 is kept in a folded state. Will be.

In addition, in order to develop the baby carriage main body 15 from a folded state to a use state, you may follow the procedure opposite to the folding operation mentioned above.

As shown in FIG. 1, the awning 75 and the seat | seat 70 are provided in the stroller main body 15 which consists of the above structures. The awning 75 has one or more awning pipes 76 attached to the baby carriage main body 15 and an awning cloth 77 attached to the awning pipes 76, and functions as a sunshade. do. In the example shown, the awning pipe 76 is formed in an approximately U shape, and both U ends are pivotally attached to the handle 50. As the awning pipe 76 swings with respect to the handle 50, the awning 75 is opened and closed.

On the other hand, as described above, the seat 70 includes a seat portion 71 supported by the extension protrusion 35 of the rear wheel support element 30, and a backrest portion 72 protruding backward from the seat portion 71. ) And a pair of side wall portions 73 provided on the sides of the seat portion 71 and the backrest portion 72. The sitting part 71 mainly supports the buttocks of the infant who rides on the baby carriage 10. On the other hand, the backrest 72 is disposed at a position facing the infant's back. The side wall portion 73 is located on both sides of the infant riding on the baby carriage 10.

As shown in FIG. 1, the front end part of the seat part 71 of the seat | seat 70 is attached to the extension protrusion part 35 of the rear wheel support element 30, and the backrest part 72 of the seat | seat 70 is carried out. Is attached to the main part 51 of the handle 50 constituted by the main link element 40. On the other hand, as described above, when the baby carriage 10 is deformed from the use state to the folded state, the use state of the baby carriage 10 from the relative rotation center RC2 with the front wheel support element 30 among the main link elements 40. The main link element 40 pivots with respect to the front wheel support element 20 such that the upwardly extending portion in FIG. At this time, the backrest portion 72 is supported by the main link element 40 and works together with the main link element 40 of the seat 70, which is a place where the infant is seated or laid down, and thus the infant of the seat back portion 72. The surface facing the surface moves toward the surface facing the infant of the seat 71 of the sheet. As a result, in the folded baby carriage 10, the back surface which does not face the infant of the sheet 70 is exposed more than the surface which faces the infant of the sheet | seat 70. As shown in FIG. In particular, in the form shown in FIG. 10, the surface of the seat 71 of the seat may approach and face the surface of the seat back portion 72, and the other surface of the seat back portion 72 may face in the front-rear direction. It is inclined to face the inside of the baby carriage 10 in the folded state, and to face slightly downward in the vertical direction. For this reason, foreign matter made of dust or the like adheres to the surface of the sheet 70 facing the infant, and between the backrest portion 72 and the seating portion 71 of the sheet 70 among the surfaces of the sheet 70. The accumulation of foreign matters made of dust or the like can be effectively suppressed. As a result, when the baby carriage 10 is folded and stored, it becomes possible to suppress that the seat 70 becomes dirty.

Also, in the form shown, the side wall portion 73 of the seat 70 is in use from the relative center of rotation RC2 between the extension protrusion 35 and the front wheel support element 20 of the main link element 40. It is attached to the part extended upward, ie, the main part 51 of the handle 50. When the infant rides on the seat 70 of the baby carriage 10, a force for relatively rotating the rear wheel support element 30 in the direction in which the rear wheel 31 is separated from the front wheel 21 in the front-rear direction is applied to the baby carriage 10. All. In the form described here, such an external force can be received not only by the connection link element 60 but also by the side wall portion 73 of the sheet 70. That is, the side wall portion 73 of the seat 70 is for maintaining the relative position of the rear wheel support element 30 with respect to the main link element 40 and the front wheel support element 20 in the use state of the baby carriage 10. Functioning as a member, the rigidity can be improved in the baby carriage 10. Therefore, according to the side wall part 73 of this seat 70, generation | occurrence | production of the curvature etc. during the running of the baby carriage 10 can be suppressed.

In particular, in this embodiment, as shown in FIG. 1 and FIG. 9, the side wall portion 73 forms a belt-shaped member 73a that forms an edge portion on the side separated from the seat portion 71 and the backrest portion 72. Have The belt-shaped member 73a is comprised so that tensile strength may become higher than the other part of the side wall part 73. FIG. As shown in FIG. 9, this belt-shaped member 73a is attached to the main portion 51 of the handle 50 formed by the extension protrusion 35 of the rear wheel support element 30 and the main link element 40. As a result, the rigidity of the baby carriage 10 can be effectively improved.

According to this embodiment as described above, when deforming from the use state to the folded state, the handle 50 and the front wheel support element 20 are rotated with respect to the front wheel support element 20 so that the handle 50 falls forward. The front wheel support element 20 and the rear wheel support element 30 rotate relative to each other so that the front wheel 21 and the rear wheel 31 approach each other. Thus, the stroller 10 can also be folded so that the main link element 40, the front wheel support element 20 functioning as a full angle, and the rear wheel support element 30 functioning as a back sense approach each other. In this case, the folding dimension of the baby carriage 10 can be downsized in both the front-back direction and the vertical direction.

In addition, the backrest portion 72 of the seat 70 in which the infant is seated or lying down is supported by the main link element 40 directly or indirectly to operate together with the main link element 40, thereby providing the seat back portion 72 of the seat back portion 72. The surface facing the infant moves toward the surface facing the infant of the seat sitting portion 71. As a result, in the baby carriage 10 in the folded state, the back surface not facing the infant of the sheet 70 is exposed more than the surface facing the infant of the sheet 70. In addition, the surface of the seat seating portion 71 approaches and faces the surface of the seat back portion 72, and the other surface of the seat back portion 72 is folded in the front-back direction. Face the inside. For this reason, foreign matter made of dust or the like adheres to the surface of the sheet 70 facing the infant, and between the backrest portion 72 and the seating portion 71 of the sheet 70 among the surfaces of the sheet 70. The accumulation of foreign matters made of dust or the like can be effectively suppressed.

Further, the front wheel support element 20 and the rear wheel support element 30 rotate relative to each other so that the front wheel 21 and the rear wheel 31 approach each other, so that the front wheel 21 and the rear wheel 31 are grounded so that the stroller in the folded state ( It becomes possible to make 10) stand alone stably. Therefore, the storage space of the baby carriage 10 can be saved in space.

Moreover, it is possible to add various changes with respect to embodiment mentioned above. An example of a deformation | transformation is demonstrated below, referring drawings. In the drawings used in the following description and the following description, the same reference numerals as those used for the corresponding parts in the above-described embodiments are used for the parts that can be configured similarly to the above-described embodiments, Duplicate explanations are omitted.

In the above-mentioned embodiment, although the handle 50 has the pair of main part 51 and the connection part 52 which connects a pair of main part 51, the example formed in substantially U shape was shown, It is not limited. The handle 50 may consist of a pair of main parts 51 and the holding part attached to the edge part of each main part 51. As shown in FIG.

Moreover, in the above-mentioned embodiment, although the pair of rear wheel support elements 30 showed the example connected to each other via the rear connection member 67 in the middle part or the downward part along the longitudinal direction, it is limited to this. It doesn't work. As an example, as shown in FIG. 11, the pair of rear wheel support elements 30 may be connected to each other via the connection part 39 in the upper part, in other words, in the front part. Such a connection part 39 can improve the rigidity of the baby carriage main body 15, and also functions as a site | part which supports the seat part 71 of the seat | sheet 70. As a result, the running of the baby carriage 10 can be more stabilized and the riding comfort can be improved.

In addition, in the example shown in FIG. 11, the connection part 39 extends between the upper ends (front ends) of the pair of rear wheel support elements 30. And the connection part 39 is formed integrally with the olfactory member 33 of the rear wheel support element 30, for example from the metal pipe | tube made from aluminum alloy bent in a U shape.

In addition, in the example shown in FIG. 11, the remote control means 54 for releasing engagement of the front wheel support element 20 and the main link element 40 is provided in the connection part 52 of the handle 50. . Remote control means 54 between a member for realizing engagement between the front wheel support element 20 and the main link element 40, for example the projection 42 described above, and the remote control means 54. The transmission means (for example, a wire) for transmitting the operation of) to the projection part 42 is provided, and the projection part 42 can be operated by the remote control means 54. As shown in FIG. By using this remote operation means 54, it becomes possible to more easily perform deformation between the use state and the folded state of the baby carriage main body 15.

In addition, in the above-described embodiment, the front wheel support element 20 and the main link element 40 are disposed at the outermost side in the width direction, and the rear wheel support element 30 is disposed at the innermost side in the width direction. Although the example in which the connection link element 60 is provided in the position which becomes between the rear wheel support element 30 and the main link element 40 in the width direction was shown, it is not limited to this. For example, as shown in FIG. 11, while the front wheel support element 20 and the main link element 40 are arrange | positioned in the outermost part in the width direction, the connection link element 60 in the innermost part in the width direction ) May be disposed, and the rear wheel support element 30 may be provided at a position between the main link element 40 and the link link element 60 in the width direction.

More specifically, in the example shown in FIG. 11, the connection link element 60 includes a connection extension protrusion 60b and a connection extension protrusion 60b that extend from the lower portion of the main link element 40 along the width direction. ) And a main body portion 60a connected to the extension protrusion 35 of the rear wheel support element 30. The main body portion 60a extends in the front-rear direction, and the extension protrusion 35 of the rear wheel support element 30 connected with the main body portion 60a supports the main body portion 60a of the link link element 60 and the front wheel support. Located between element 20 and main link element 40. Therefore, the connection extension protrusion 60b protrudes from the main link element 40 in the width direction by at least the length of the thickness of the extension protrusion 35 of the rear wheel support element 30. For this reason, sufficient clearance is formed between the main-body part 60a of the connection link element 60, and the main link element 40. As shown in FIG. As a result, the sheet 70, the garment or the like is most easily rolled up when the baby carriage main body 15 is deformed, and the seat (a) between the main body 60a of the main link element 40 and the main link element 40. 70) and clothing can be effectively avoided. As a result, the deformation between the use state and the folded state of the baby carriage main body 15 can be performed more stably.

By the way, in the example shown in FIG. 11, the olfactory member 33 of the rear wheel support element 30 is bent or curved in the middle part of the olfactory part 34. As shown in FIG. As a result, the site | part which hold | maintains the rear wheel 31 among the olfactory part 34 is located in the width direction outer side than the extension protrusion part 35. As shown in FIG. According to this example, the running of the baby carriage 10 can be stabilized more.

11, the basket 85 attached to the baby carriage main body 15 is shown with the dashed-two dotted line.

In addition, in the above-mentioned embodiment, although the main link element 40 showed the example which comprises a part of the main part 51 of the handle 50, it is not limited to this. As in the example shown in FIGS. 12 and 13, the handle 55 may be provided as a separate component from the main link element 40. The baby carriage body 15 of the baby carriage 10 shown in FIGS. 12 and 13 includes a front wheel support element 20, a rear wheel support element 30, a connection link element 60, a first front side connection member 65, The main body frame 16 which has the 2nd front side connection member 66 and the back side connection member 67, and the handle 55 connected to the main body frame 16 so that rotation is possible are provided. The handle 55 is formed in a substantially U shape. The handle 55 is rotatably connected to the main body frame 16 at a portion that becomes approximately both ends of the U-shape.

The handle 55 swings with respect to the main body frame 16, and is face-to-side press position (front position) shown by solid lines in FIGS. 12 and 13, and back press position (backward) shown by two-dot chain lines in FIGS. 12 and 13. Position). The main body frame 16 is provided with a means (not shown) for engaging with the handle 55 and for engaging the handle 55 in a pressurized position. In addition, for example, the main link element 40 of the main body frame 16 is provided with means (not shown) for engaging the handle 55 and locking the handle 55 to the back pressing position. By fixing the handle 55 with the main link element 40 in the back pressurized position, the front wheel support element 20 and the rear wheel support element, together with the main link element 40, are secured together with the main link element 40 as in the above-described embodiment. By rotating with respect to 30, the baby carriage 10 can be deformed between the use state and the developed state.

Therefore, such a baby carriage 10 also has the same effect as the above-described embodiment, and for example, it is possible to effectively prevent contamination of the seat 70 when the baby carriage 10 in a folded state is stored. In addition, the folding dimension of the baby carriage 10 can be reduced.

In addition, in the example shown to FIG. 12 and FIG. 13, the handle 55 has the lower part, especially the lower end part in front view support element of the main link element 40 in the side view of the baby carriage 10 in a use state. It is pivotally attached to the part which becomes lower than the relative rotation center RC2 with (20). More specifically, the rotation center of the handle 55 and the main link element 40 coincides with the relative rotation center RC4 of the main link element 40 and the link link element 60. Thus, the shaft member 62 which pivotally attaches the rear wheel support element 30 and the connecting link element 60 described above further penetrates the handle 55, whereby the main link element 40 and the connecting link element 60. The handle 55 can be pivotally attached to it.

In addition, in the above-mentioned embodiment, although the example in which the seat 70 is supported by the extension protrusion 35 and the main link element 40 of the rear wheel support element 30 is shown, it is not limited to this. For example, as shown in FIG. 12 and FIG. 13, the seat holding mechanism 80 is provided in the baby carriage main body 15, and the seat back mechanism 72 of the seat 70 is provided by the seat holding mechanism 80. It may be supported.

In the example shown in FIGS. 12 and 13, the seat holding mechanism 80 includes a main support frame 81 connected to the baby carriage main body 15 and an upper support frame pivotably connected to the main support frame 81 ( 82 and a pair of side support frames 83 disposed on both sides of the main support frame 81. The upper support frame 82 is rotatably connected to the upper side which becomes an opposite side to the connection point to the baby carriage main body 15 among the main support frames 81. The main support frame 81 has a substantially U-shape in which both ends are connected to the baby carriage main body 15. In the example shown in FIG. 12 and FIG. 13, the rotational center of the baby carriage main body 15 of the main support frame 81 coincides with the relative rotational center RC4 of the main link element 40 and the connecting link element 60. Doing.

The side support frame 83 functions as a link member, and when the main support frame 81 falls down with respect to the extension protrusion 35 of the rear wheel support element 30, the upper support frame 82 receives the main support frame ( 81). On the other hand, when the main support frame 81 stands up with respect to the extension protrusion 35 of the rear wheel support element 30, the upper support frame 82 generally covers the surface defined by the main support frame 81. Tilt upward support frame 82 to extend along. Each side support frame 83 is connected to each of the baby carriage main body 15 and the upper support frame 82 so that relative rotation is possible. In the example shown in FIG. 12 and FIG. 13, the rotational center of the baby carriage main body 15 of the side support frame 83 coincides with the relative rotational center RC2 of the main link element 40 and the front wheel support element 20. Doing.

Moreover, as shown in FIG. 13, the reclining adjustment belt 84 fixed to the left and right main link elements 40 is arrange | positioned at the back side of the main support frame 81 (FIG. 12). , The reclining adjustment belt 84 is omitted). And the rear wheel support which supports the seat surface part 55 of the seat 50 of the main support frame 81 which supports the backrest part 72 of the seat | seat 70 by adjusting the length of the reclining adjustment belt 84. The angle with respect to the extended protrusion 35 of the element 30, ie the reclining angle, can be adjusted.

According to the example shown in FIGS. 12 and 13, when the baby carriage 10 is deformed from the use state to the folded state, the backrest portion 72 of the seat 70 supported by the seat holding mechanism 80 is a reclining extension belt. And with the main link element 40 supporting the sheet retaining mechanism 80 through 84, and so on. Therefore, the same operation and effect as the above-described embodiment can be obtained, and when the baby carriage 10 in a folded state is stored, for example, contamination of the seat 70 can be effectively prevented.

In addition, instead of the seat holding mechanism 80 shown in FIGS. 12 and 13, like the stroller main body 15 shown in FIG. 15, the main support frame 81 and the reclining adjustment belt 84 shown in FIGS. 12 and 13 are shown. Bay may be provided in the baby carriage main body 15. Such a baby carriage 10 also has the same effect as the above-described embodiment, and when the baby carriage 10 in a folded state is stored, for example, contamination of the seat 70 can be effectively prevented. 14 to 18 show the same stroller main body 15, the main support frame 81 is omitted from Figs. 17 and 18 for convenience of understanding, and the reclining adjustment belt 84 is only shown in Fig. 15. Is shown.

In addition, in the above-mentioned embodiment, although the example in which the pair of connection link elements 60 are provided was shown, it is not limited to this example. In the example shown to FIGS. 14-18, the seat support plate 63 is provided in the position which faces the buttocks of the infant who rides in the baby carriage 10, and the seat support plate 63 is the connection link element 60. In FIG. ). The seat part supporting plate 63 is formed in a plate shape, and supports the infant's buttocks by the surface from below. However, the through hole may be formed in the seat part support plate 63 from a viewpoint of weight reduction and air permeability.

The seat support plate 63 extends in the width direction between the pair of main link elements 40, the pair of front wheel support elements 20, and the pair of rear wheel support elements 30. As can be understood from FIGS. 15 and 16, both side portions of the seat support plate 63 constitute a connecting link element 60, respectively, and the main link portion of the main link element 40 on the corresponding side. It is pivotally attached to the 41 using the shaft member 62, and is pivotally attached to the olfactory member 33 of the rear wheel support element 30 of the corresponding side using the shaft member 61. As shown in FIG. The seat support plate 63 is connected to the main link element 40 at its rear portion. On the other hand, the seat support plate 63 has a plate-shaped main body 63a and a protruding support 63b protruding downward from the main body 63a in the unfolded state of the baby carriage main body 15. The seat part supporting plate 63 is connected with the rear wheel support element 30 in this projecting support part 63b.

In addition, the link link element 60 made of the seat support plate 63 and the link center 60 formed of the seat support plate 63 and the relative rotation center RC3 of the rear wheel support element 30. And the relative rotation center RC4 of the main link element 40 are disposed at the same position as in the above-described embodiment. Therefore, also in the baby carriage 10 shown in FIGS. 14-18, it can be folded similarly to the baby carriage in embodiment mentioned above, and can exhibit the same effect as the baby carriage in embodiment mentioned above.

In addition, in the baby carriage 10 shown in FIGS. 14-18, the olfactory member 33 which comprises the rear wheel support element 30 does not protrude forward rather than the pivot attachment point with the seat part support plate 63. FIG. . That is, in the baby carriage 10 shown in FIGS. 14-18, unlike the embodiment mentioned above, the extension protrusion part 35 which supports the seat part 71 of the seat 70 is not provided. For this reason, in the baby carriage 10 shown in FIGS. 14-18, the seat part 71 of the seat 70 is supported by the front part of the main-body part 63a of the seat part support plate 63, and is mentioned above. As described above, the backrest portion 72 of the seat 70 is supported by the main support frame 81.

By using the seat part support plate 63, the rigidity of the baby carriage main body 15 can be improved significantly. In addition, since the configuration of the baby carriage main body 15 is simplified, the folding operation of the baby carriage main body 15 and the deployment operation of the baby carriage main body 15 can be performed smoothly. In addition, since the structure of supporting the infant from below is stable, the infant can be stably loaded in the stroller 10 in an appropriate posture. Moreover, since the seat part 71 of the sheet | seat 70 can be supported in the area | region across the width direction, the deformation amount of the sheet | seat 70 between a expanded state and a folded state can be reduced.

In addition, in the modification shown in FIGS. 14-18, the holding body 86 is provided facing the surface on the opposite side to the side which faces the infant of the seat part support plate 63. Moreover, as shown in FIG. The holding body 86 is formed using a cloth material or a mesh material having flexibility. An accommodating space 87 is formed between the holder 86 and the seat support plate 63, which is open at least rearward in the deployed state of the baby carriage 10. The accommodation space 87 can be used as a space for accommodating small items such as blankets and towels. In this regard, the holder 86 may be formed of a material having extensibility.

In addition, the holding body 86 is attached to the seat 70 attached to the seat support plate 63 or the seat support plate 63 at both edges and the front edge in the unfolded state of the baby carriage 10. It is preferable to be connected. In this case, the thing accommodated in the accommodation space 87 can be suppressed from falling accidentally from the accommodation space 87. Moreover, as shown in FIG. 17 and FIG. 18, the opening 87a of the accommodation space 87 formed between the holding body 86 and the seat part support plate 63 is upward in the folded state of the baby carriage 10. Moreover, as shown in FIG. Is open towards you. Therefore, the baby carriage 10 can stand on its own in the folded state, so that the accommodating space 87 can be utilized even in the folded state of the baby carriage 10.

In addition, in the modification shown to FIGS. 14-18, the handle 88 is provided in the back part of the seat part support plate 63. FIG. The handle 88 serves as a handle for lifting the baby carriage 10 when carrying the folded baby carriage 10. As shown in FIG. 17 and FIG. 18, the handle 88 protrudes upward from the seat support plate 63 in the folded state of the baby carriage 10. Therefore, by using this handle 88, the handleability of the baby carriage 10 which can stand in a folded state can be further improved.

In addition, in order to further improve the convenience of the baby carriage 10 that is self-supporting in the folded state, as shown by the dashed-dotted line in FIG. 17, the side of the seat supporting plate 63 is opposite to the side facing the infant. The luggage hook hook 89 may be provided.

Moreover, although some modified examples of embodiment mentioned above were demonstrated, of course, it is also possible to apply several combination suitably.

Claims (21)

As a baby carriage that can be deformed between a used state and a folded state,
A front wheel support element supporting the front wheels,
A rear wheel support element connected to the front wheel support element so as to be rotatable and supporting a rear wheel;
A main link element connected to the front wheel support element in a rotatable manner;
A connecting link element extending between said main link element and said rear wheel support element and further being rotatable relative to each of said main link element and said rear wheel support element,
The front wheel support element includes a front member extending at least between a relative center of rotation with the main link element and a position supporting the front wheel, and a connection member fixed to the front member and protruding backward from the full member. Has,
The rear wheel support element is rotatably attached to the connecting member,
The main link element can be engaged with the connecting member, and the relative rotation of the main link element and the front wheel support element is regulated by engaging the main link element and the front wheel support element. The method of claim 1,
The connection link element,
Rotatably attached to a portion of the main link element that is lower in the use state than the center of rotation relative to the front wheel support element,
The baby carriage of the said rear wheel support element is rotatably attached to the extended protrusion part which becomes a side spaced apart from the said rear wheel rather than the relative rotation center with the front wheel support element. The method of claim 1,
A baby carriage further comprising a handle connected to the main link element in a relative rotatable manner. The method of claim 1,
The baby carriage of which the main link element constitutes a handle. The method of claim 1,
When deforming from the use state to the folded state, the main link element supports the front wheel so that a portion of the main link element extending upward in the use state from the relative center of rotation with the front wheel support element falls forward. The baby carriage which rotates with respect to an element and the part of the said main link element extended upward from the relative rotation center with the said front wheel support element in the use state approaches the front wheel support element. The method of claim 1,
And the front wheel support element and the rear wheel support element rotate relative to each other so that the front wheel and the rear wheel approach each other when deforming from the use state to the folded state. The method of claim 1,
The main link element is in engagement with a portion of the front wheel support element positioned between the front wheel support element supporting the front wheel and the center of rotation between the front wheel support element and the main link element,
A baby carriage in which the relative rotation of the main link element and the front wheel support element is regulated by engaging the main link element and the portion of the front wheel support element. delete As a baby carriage that can be deformed between a used state and a folded state,
A front wheel support element supporting the front wheels,
A rear wheel support element connected to the front wheel support element so as to be rotatable and supporting a rear wheel;
A main link element connected to the front wheel support element in a rotatable manner;
A link link element extending between said main link element and said rear wheel support element and further rotatable relative to each of said main link element and said rear wheel support element,
A seat having a seat and a backrest connected to the seat,
A plate-shaped seat support plate that faces the buttocks of an infant riding in a baby carriage is provided, and the seat support plate supports the seat of the seat having flexibility,
The connection link element is a baby carriage formed by a seat support plate. The method of claim 9,
The main link elements are respectively provided on both sides of the seat supporting plate,
The rear wheel support elements are respectively provided on both sides of the seat support plate,
The front wheel support elements are respectively provided on both sides of the seat support plate,
Both side portions of the seat supporting plate each constitute the connecting link element, and are connected in a rotatable manner with the main link element on the corresponding side and the rear wheel support element on the corresponding side,
A baby carriage in which each front wheel support element is connected to the main link element of the corresponding side and the rear wheel support element of the corresponding side so that relative rotation is possible. The method of claim 9,
The holding body is disposed facing the surface on the side opposite to the side facing the infant of the seat portion support plate,
A baby carriage in which an accommodating space is opened between the holder and the seat support plate at least rearward in an expanded state of the baby carriage. The method of claim 9,
Stroller is provided on the rear portion of the seat support plate. The method of claim 12,
The handle is a baby carriage that protrudes upward from the seat support plate in the folded state of the baby carriage. As a stroller which can be deformed between the use state and the folded state,
The front wheel support element which supported the front wheel,
A rear wheel support element supporting a rear wheel and rotatable relative to the front wheel support element,
A handle rotatable relative to the front wheel support element and the rear wheel support element,
A seat having a seat portion, a backrest portion connected to the seat portion, and a sidewall portion provided on the side of the seat portion and the backrest portion,
The rear wheel support element has an extension protrusion which extends beyond the center of rotation relative to the front wheel support element and protrudes to the side opposite to the side supporting the rear wheel,
The side wall portion of the seat is attached to a portion extending upward from the relative rotation center of the handle and the front wheel support element of the handle in the use state,
When deforming from the use state to the folded state, the handle and the front wheel support element approach each other, and the front wheel and the rear wheel approach each other so that the handle pivots so that the handle falls forward. And the front wheel support element and the rear wheel support element rotate relative to each other, and the seat deforms according to the movement of the handle, the front wheel support element and the rear wheel support element. The method according to any one of claims 1, 9 and 14,
And a seat having a seat and a backrest connected to the seat,
The rear wheel support element has an extension protrusion which extends beyond the center of rotation relative to the front wheel support element and protrudes to the side opposite to the side supporting the rear wheel,
The baby carriage in which said seat is supported by said extension protrusion. The method of claim 15,
In the side view in a use state, the angle which the part which supports the said sheet | seat of the said extended protrusion makes with respect to the front-back direction is the position which supports the said rear wheel among the said rear wheel support elements, and the said front wheel support element. Stroller smaller than the angle formed between parts of the center of rotation relative to the front-back direction. The method of claim 15,
The said extended protrusion part is bent so that the angle formed with respect to the front-back direction at the side view in a use state may become small at the front side. The method of claim 1,
And a seat having a seat portion, a backrest portion connected to the seat portion, and a sidewall portion provided on the side of the seat portion and the backrest portion,
The rear wheel support element has an extension protrusion which extends beyond the center of rotation relative to the front wheel support element and protrudes to the side opposite to the side supporting the rear wheel,
The side wall part of the said sheet | seat is a baby carriage attached to the part which extends upwards in the use state from the center of rotation of the said extension protrusion and the said front wheel support element among the said main link elements. delete The method according to any one of claims 1, 9 and 14,
In the side view of the folded state, in a state in which the front wheel and the rear wheel are grounded to the ground plane, the relative rotation centers of the front wheel support element and the rear wheel support element have a ground position of the front wheel in the direction along the ground plane. A baby carriage located between the ground positions of the rear wheels. The method according to any one of claims 1, 9 and 14,
A baby carriage in which said baby carriage is self-supporting in said folded state.

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