TWI616371B - Seat support unit and stroller - Google Patents

Abstract

The seat support unit of the present invention comprises: a frame member having: a pair of side portions; and a joint portion; and a base seat mounted to the frame member. The base seat has a base support portion, at least a portion of which is located in a region surrounded by the side portions and the joint portion from the three sides; the tubular portion is disposed at an end edge of the base support portion and has a joint portion therethrough; The two ends are connected to the side edges of the base support portion. The pair of side portions extend through the through holes formed between the base support portion and the belt portion.

Description

Seat support unit and stroller Field of invention

The present invention relates to a seat support unit and a stroller having the same, which maintains a seat for a stroller, and particularly reduces deformation of an infant when riding.

For example, as disclosed in JP56-8576U, baby strollers for infants and toddlers are widely available for use. In most of the recent strollers, as shown in FIG. 12, on the support body 99 formed by the three-frame body 90 and the seat material 95, a seat or a back of a cushioning seat is supported, wherein the three-frame The body 90 has a pair of side portions 91 and a coupling portion 92 connecting the side portions, and the seat material 95 is supported by the three frame body 90. The seat material 95 has a tubular portion 95b at each position corresponding to one of the side portions 91 and the connecting portion 92 of the three-frame body 90. Then, the pair of side portions 91 and the connecting portion 92 extend through the tubular portion 95b, respectively, and the seat material 95 is supported by the bezel 90.

The support body 99 is formed by preparing a seat material formed by three cylindrical portions in advance, and sequentially passing the end portion of the side portion 91 on the side of the three-frame body 90 in the order of the tubular portion. However, in the above-described support body 99, when at least one side portion 91 passes through the three cylindrical portions of the seat material, the corner portion between the side portion 91 and the joint portion 92 must also pass through the cylindrical portion. Therefore, compared to the side The size of the portion 91 or the connecting portion 92 must be made large in advance in the size of the inner portion of the tubular portion. In addition, compared with the interval between the side portions 91 of one of the three frame bodies 90, or the space between the side portions of the three frame body 90 and the joint portion, if the seat corresponding to the seat material is not When the interval between the portions is set to be wide, the three-frame body 90 which is more highly rigid than the seat material cannot pass through the tubular portion. As a result, in the state in which the seat material is mounted on the three-frame body, the tension of the seat material becomes weak, so that the seat material is seriously collapsed and deformed when the infant rides. In this case, the shock absorption is lowered, and the ride comfort of the stroller is lowered.

Invention

The present invention has been made in view of the above aspects, and aims to reduce the amount of deformation of a seat supporting unit that holds a seat when an infant rides on a stroller.

A seat supporting unit of the present invention is a seat supporting unit for holding a seat for a stroller, comprising: a frame member having: a pair of side portions; and a connecting portion that connects the pair of side portions on one side The base portion is coupled to the frame member; the base seat has a base support portion, at least a portion of which is located in an area surrounded by the three sides by the pair of side portions and the connecting portion a tubular portion provided at an end edge of the base support portion and having the connecting portion penetrating therethrough; and a belt portion having a side edge connected to a side edge of the base support portion The other end portion is connected to a side edge of the other side of the base support portion, and a through hole that extends through the pair of side portions is formed between the other end portion and the base support portion.

In the seat supporting unit of the present invention, the frame member may be formed together with the base seat: a seat support body facing the buttocks of the infant of the baby carriage, or a back support body facing the infant's back.

In the seat supporting unit of the present invention, the frame member may include a bent one metal tube, and the metal tube may at least partially form the pair of side portions and the connecting portion.

In the seat supporting unit of the present invention, the metal pipe may be formed by bending at least two of the one side portion of the pair of side portions and the connecting portion.

In the seat supporting unit of the present invention, at least two of the one side of the pair of side portions and the connecting portion may be bent; at least one of the pair of side portions At least two of the areas where the side portion is connected to the connecting portion are curved.

Further, the seat supporting unit of the present invention further includes: a second frame member having: a pair of side portions; and a connecting portion that connects the pair of side portions to an end portion on one side; the base seat further includes: The base support portion is connected to the base support portion on a side opposite to the side where the tubular portion is provided, and at least a portion thereof is located from the three sides surrounded by the pair of side portions and the joint portion of the second frame member. within the area; The second tubular portion is provided at an end edge of the second base supporting portion opposite to the side connected to the base supporting portion, and penetrates the connecting portion of the second frame member; and the second belt portion a side edge connected to one side of the second base support portion, and the other end portion is connected to a side edge of the other side of the second base support portion, and the second side is formed between the second base support portion and the second base support portion A through hole through which the pair of side portions of the frame member pass and extend.

In the seat supporting unit of the present invention, the frame member and the second frame member may be coupled to each other and swingably connected to each other.

In the seat supporting unit of the present invention, the second frame member may include a bent one of the metal pipes, and the metal pipe may at least partially form the pair of side portions and the connecting portion.

In the seat supporting unit of the present invention, the metal pipe of the second frame member may be bent at least at two in a region where one of the pair of side portions is connected to the connecting portion.

In the seat supporting unit of the present invention, the metal pipe of the second frame member may have at least two of the one side portion of the pair of side portions connected to the connecting portion. Bending; at least two of the regions in which the other side portion of the pair of side portions are connected to the connecting portion are bent.

In the seat supporting unit of the present invention, the seat support body facing the buttocks of the infant seated on the stroller may be formed by the frame member and the portion supported by the frame member in the base seat. And the second frame member and the second frame member in the base seat The portion supported by the piece is formed with a back support body facing the back of the infant.

In the seat supporting unit of the present invention, the device further includes: a plate member swingably disposed relative to the frame member; and the frame member and the base seat are formed to face the baby in the stroller One of the seat support body of the infant's buttocks and the back support body facing the infant's back; and the other of the seat support body and the back support body is formed by the plate member.

In the seat supporting unit of the present invention, the aforementioned plate member may be swingably coupled to the frame member.

A stroller of the present invention, comprising the above-described seat support unit of the present invention; and a stroller body supporting the seat support unit.

According to the present invention, it is possible to reduce the amount of deformation of the seat supporting unit that holds the seat when the infant rides on the stroller.

10‧‧‧ baby carriage

13‧‧‧ seats

15‧‧‧ Baby stroller body

16‧‧‧ Ontology framework

17‧‧‧ pedal

18‧‧‧ protective components

19‧‧‧ Rear connecting material

22‧‧‧Front foot

23‧‧‧ Wheels (front wheel)

24‧‧‧ hind feet

26‧‧‧2nd connecting element

28‧‧‧1st connecting element

30‧‧‧Handle fixing members

31‧‧‧ card sales

37‧‧‧Activity adjustment belt

38‧‧‧Hands

40‧‧‧Front support elements

41‧‧‧ Front support

42‧‧‧Extension in the width direction

45‧‧‧Back side support elements

46‧‧‧Back side support

49‧‧‧Axis components

50, 250‧‧‧ seat support unit

51‧‧‧ seat support

52‧‧‧Back support

53‧‧‧Connecting

55‧‧‧Link frame components

60‧‧‧ seat frame components

60a, 65a, 91‧‧‧ side

60b, 65b, 92‧‧‧ link

61‧‧‧1st frame member (seat frame material)

61a, 66a‧‧‧ end

62a, 67a‧‧‧ side frame

62b, 67b‧‧‧ link frame

63‧‧‧Support substrate

64, 69‧‧‧ board components

65‧‧‧Back frame elements (frame elements)

66‧‧‧2nd frame member (back frame material)

68‧‧‧End members

70‧‧‧3rd frame element (upper frame element)

71, 76‧‧‧ Connection and engagement part (connection and engagement mechanism)

75‧‧‧4th frame element (side frame element)

79‧‧‧ Tensioning members

80, 180, 280‧‧‧ base seats

81‧‧‧1st base support

81a, 81b, 81c, 86a, 86b, 86c‧‧‧ edge

82‧‧‧1st cylindrical

82a, 83a, 87a, 88a‧‧‧ through holes

83‧‧‧1st belt

86‧‧‧2nd base support

87‧‧‧2nd tubular

88‧‧‧2nd belt

90‧‧‧Three-frame body

95‧‧‧Seat materials

95b‧‧‧Cylinder

99‧‧‧Support

160, 265‧‧‧ frame components

Fig. 1 is a perspective view for explaining an embodiment of the present invention, and showing a state in which a baby carriage of a seat is erected in a state in which a back support of a seat supporting unit is raised.

Fig. 2 is a side view showing the state in which the stroller of Fig. 1 is dropped on the back support.

3 is a perspective view showing a seat support unit assembled to the stroller of FIG. 1.

Figure 4 is a side cross-sectional view showing the seat support unit of Figure 3.

Figure 5 is a perspective view showing the base seat assembly before the seat support unit of Figures 3 and 4.

Figure 6 is a partial perspective view schematically illustrating a method of assembling the base seat of Figure 5 to a back frame member.

Figure 7 is a partial perspective view for schematically illustrating a method in which the base seat of Figure 5 is assembled to a back frame member.

Figure 8 is a partial perspective view for schematically explaining a method of assembling the base seat of Figure 5 to a back frame member.

Figure 9 is a partial top plan view schematically illustrating a method of installing the base seat of Figure 5.

Fig. 10 is a perspective view showing a modification of one of the seat supporting units.

Fig. 11 is a perspective view showing another modification of the seat supporting unit.

Figure 12 is a partial perspective view showing a conventional seat support unit.

Form for implementing the invention

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 9 are views for explaining an embodiment of the stroller of the present invention.

1 and 2 show the overall configuration of the stroller 10 of the present embodiment. The illustrated stroller 10 has a stroller body 15 having a forefoot 22 and a rear leg 24, a seat support unit 50 supported by the stroller body 15, and a seat 13 mounted to the seat support unit 50. The seat 13 can use a known property having cushioning properties, and is preferably detachable with respect to the seat supporting unit 50. The infant is sitting or sleeping on the seat 13. Also, for the sake of convenience, the seat 13 is only shown in FIG. The two points are drawn by lines.

In the present embodiment, the stroller body 15 has a main body frame 16 having a front leg 22 and a rear leg 24, and a push handle 38 that is swingably coupled to the body frame 16. In the stroller 10, the handle 38 is swingable relative to the body frame 16. The handle 38 can be fixed to a back push position (rear position) indicated by a solid line in FIGS. 1 and 2 and a face-to-face push position (front position) indicated by a two-dot chain line in FIG. 2 . The configuration in which the handle 38 is swingable with respect to the body frame 16 can be constituted by a known configuration, for example, as disclosed in JP 2008-254688 A.

Further, in the stroller 10 of the present embodiment, the front leg 22, the rear leg 24, and the handle 38 can be folded toward each other. Most of the components of the stroller body 15 are pivoted to each other for folding. Further, the seat 13 is formed using a flexible cloth material, and is deformable in accordance with the folding operation of the stroller 10.

Moreover, in the present specification, the terms "front", "back", "upper" and "lower" with respect to the stroller 10, the stroller body 15, and the seat support unit 50 are not specifically indicated. : "Before", "After", "Up" and "Bottom" based on the infants of the stroller 10 in the unfolded state. Therefore, the "front-rear direction" corresponds to the direction of the lower left and upper right of the paper surface of Fig. 1 . Then, unless otherwise specified, "front" refers to the side of the infant that has been worn, and the lower left side of the paper of Figure 1 is the front side. On the other hand, the "up and down direction" refers to a direction orthogonal to the front-rear direction and orthogonal to the ground plane of the stroller 10. Therefore, the ground plane of the stroller 10 is a horizontal plane, and the "up and down direction" means a vertical direction. In addition, the "horizontal direction" and the "width direction" mean a direction that is also orthogonal to either the "front-rear direction" and the "up-and-down direction". more Further, "right" and "left" also mean "right" and "left" in the horizontal or width direction based on the infants riding on the stroller 10.

Hereinafter, the seat supporting unit 50 and the stroller body 15 of the present embodiment will be sequentially described in detail with reference to Figs. 1 to 9 . As can be understood from FIGS. 1 to 9, the stroller 10 as a whole has a configuration in which the center of the width direction is substantially symmetrical in the front-rear direction.

As shown in FIGS. 3 and 4, the seat support unit 50 has a seat frame member 60, a back frame member 65 coupled to the seat frame member 60, and a base seat 80 mounted to the seat frame member 60 and Back frame member 65. The seat frame member 60 has a pair of side portions 60a and a coupling portion 60b that connects the pair of side portions 60a on one side, and is connected to the front end in the illustrated example to form a support base seat. 80 three borders. Similarly, the back frame member 65 has a pair of side portions 65a, and the connecting portion 65b connects the pair of side portions 65a on one side, and is connected to the front end of the front side in the illustrated example to constitute a supporting base. The three borders of the chair 80.

In the present embodiment, the seat frame member 60 is constituted by the seat frame member 60 and the portion supported by the seat frame member 60 of the base seat 80, and the seat frame member 60 is configured to face the infant's buttocks that are seated on the stroller 10 from below. Seat support 51. On the other hand, the back frame member 65 is constituted by the back frame member 65 and the portion supported by the back frame member 65 of the base seat 80, and the back frame member 52 that faces the back of the infant of the stroller 10 from the rear side is constituted. . Again, the back frame member 65 can swing (fall down) relative to the seat frame member 60. Thereby, the activity adjustment operation of the stroller 10 can be performed. Again, the angle of adjustment of the back frame member 65 can be adjusted by: backing through the back frame member 65 The surface is controlled by the length of the activity adjustment belt 37 (refer to FIG. 2) assembled to the stroller body 15.

As shown in Fig. 3, the seat frame member 60 is formed in a U-shape as a whole (more strictly a slightly squared U-shaped outline), and the back frame member 65 is also formed in a U-shape as a whole (more rigorously slightly squared). U-shaped outline). Then, as shown in FIG. 3, the U-shaped seat frame member 60 and the U-shaped back frame member 65 are pivoted at opposite ends to each other. That is, in the present embodiment, the back frame member 65 is directly coupled to the seat frame member 60, and is swingable with respect to the seat frame member 60. However, the present invention is not limited to this example, and the back frame member 65 may be indirectly connected to the seat frame member 60 through other members such as members constituting the stroller body 15 other than the seat support unit 50.

In the present embodiment, the seat frame member 60 has a first frame member (hereinafter also referred to as a seat frame member) 61 formed in a U shape, and a support base member 63 which is assembled to the seat frame member 61. The U-shaped end portion 61a. The seat frame member 61 has a pair of side frame portions 62a and a connecting frame portion 62b extending between the pair of side frame portions 62a. The pair of side frame portions 62a are symmetrically formed and extend in the longitudinal direction. The connecting frame portion 62b extends the front end portions of the pair of side frame portions 62a in a sustained manner. The seat frame member 61 may be an integral part (member) formed by bending a metal tube formed of a single material such as aluminum. On the other hand, the support base material 63 fixed to the end portion 61a of the seat frame member 61 is formed as a member (member) extending in a plane orthogonal to the width direction, and can be formed using, for example, a resin. In the present embodiment, the connecting portion 60b of the seat frame member 60 is formed by the connecting frame portion 62b of the seat frame member 61, and the side of the seat frame member 61 is formed. The frame portion 62a and the support base material 63 form the side portion 60a of the seat frame member 60.

The back frame member 65 has a second frame member (hereinafter also referred to as a back frame member 66) formed in a U shape, and an end member (cover member) 68 which is assembled to the U-shaped end formed by the back frame member 66, respectively. Part 66a. The back frame member 66 has a pair of side frame portions 67a and a connection frame portion 67b extending between the pair of side frame portions 67a. The pair of side frame portions 67a are symmetrically formed and extend in a direction slightly extending in the front-rear direction. The connecting frame portion 67b is configured to extend the rear end portions of the pair of side frame portions 67a in a sustained manner. The back frame member 66 may be an integral part (member) formed by bending a metal tube formed of a single material such as aluminum. On the other hand, the end member 68 fixed to the end portion 66a of the back frame member 66 is configured as a lid member that covers the end portion 66a of the back frame member 66. In the present embodiment, in the present embodiment, the connecting portion 60b of the seat frame member 60 is formed by the connecting frame portion 62b of the seat frame member 61, and the side frame portion 62a and the support of the seat frame member 61 are supported. The base material 63 forms the side portion 60a of the seat frame member 60.

Then, as shown in FIGS. 3 and 4, the end member 68 of the back frame member 65 is pivotally mounted to the support base 63 of the back frame member 60 using the shaft member. Thereby, as described above, the back frame member 65 is directly coupled to the seat frame member 60, and is swingable relative to the seat frame member 60.

Further, the frame members 60 and 65 made of a single metal pipe which is bent are excellent in rigidity compared to the frame in which the side portion and the connecting portion shown in Fig. 12 are individual members.

As shown in Fig. 1, a portion surrounded by the seat frame member 60 and the back frame member 65 is provided with a base seat 80 that supports the seat 13 from below, in other words, held in a stretched state. The base seat 80 is made of, for example, a cloth material Or a thin member formed of a non-woven material. The base seat 80 can be formed with a hole for ensuring air permeability, or a storage bag for improving convenience.

As shown in FIG. 3, the base seat 80 has a first base support portion 81, and at least a portion thereof is located in a plan view: the side portion 60a and the joint portion 60b are separated from the three sides by one of the seat frame members 60. The second base support portion 86 and at least a portion of the second base support portion 86 are located in a region surrounded by the three sides of the side frame member 65 and the side portion 65a and the connecting portion 65b. Further, as shown in FIG. 5, the base seat 80 has a first tubular portion 82 and a first belt portion 83, and is connected or assembled to the first base support portion 81; and the second tubular portion 87 and the second belt portion 88, connected or assembled to the second base support portion 86.

As shown in FIG. 5, the first tubular portion 82 is provided at one end edge 81a of the first base support portion 81. More specifically, as shown in FIG. 3, the first tubular portion 82 is connected to one end edge 81a of the first base support portion 81, and is defined to extend in the width direction along the front edge 81a of the first base support portion 81. Through hole 82a. The first tubular portion 82 can be integrally formed with the first base support portion 81 by, for example, folding back the end portion of the thin material forming the first base support portion 81.

As shown in FIG. 5, the first belt portion 83 is connected to the first base support portion 81 at both ends thereof, and a through hole 83a is formed between the first base support portion 81 and the first base support portion 81. More specifically, the first belt portion 83 is a side edge 81a whose one end portion is connected to one side of the first base support portion 81, and the other end portion is connected to the other side edge 81a of the first base support portion 81. The first belt portion 83 can be formed, for example, by sewing both ends of a thin material prepared separately from the thin material forming the first base support portion 81 to the first base support portion 81.

In the portion forming the base seat 80, the first base support portion 81, The first tubular portion 82 and the first belt portion 83 are stretched over the seat frame member 60, and are particularly stretched over the seat frame member 61 of the seat frame member 60. First, the pair of side frame portions 62a forming the seat frame member 61 of the one side portion 60a of the seat frame member 60 are formed in the through hole 83a formed between the first base support portion 81 and the first belt portion 83. extend. One of the side portion 60a of the seat frame member 60 penetrates the through hole 83a, and the first base support portion 81 and the first belt portion 83 are maintained in the width direction. The first base support portion 81 and the first belt portion 83 are maintained in the width direction, and the first base support portion 81 and the first belt portion 83 can be effectively restricted along the side portion 60a of the seat frame member 60. The long direction, that is, the front and rear direction.

On the other hand, the connecting portion 60b of the seat frame member 60 formed by the connecting frame portion 62b of the seat frame member 61 penetrates the through hole 82a of the first tubular portion 82 of the base seat 80. In this manner, the first tubular portion 82 is held by the connecting portion 60b of the seat frame member 60, and as described above, the first base supporting portion 81 and the first belt portion 83 are restricted from moving in the front-rear direction. As a result, in the base seat 80, the portion of the base frame member 60 that is supported by the seat frame member 60 and that constitutes the seat support body 51 is maintained in a state in which both the front-rear direction and the width direction are stretched.

Similarly, as shown in FIG. 5, the second cylindrical portion 87 is connected to the front end edge 86a forming one end edge of the second base support portion 86, and is defined as a through hole 87a extending in the width direction along the front end edge 86a. . The second tubular portion 87 can be integrally formed with the second base support portion 86 by, for example, folding the end portion of the thin material forming the second base support portion 86. Further, the second belt portion 88 is connected to the second base support portion 86 at both ends thereof, and a through hole 88a is formed between the second belt support portion 86 and the second base support portion 86. The second belt portion 88 can be sewn to the second end by, for example, both ends of a thin material prepared separately from the thin material forming the second base support portion 86. The base support portion 86 is formed.

Among the portions forming the base seat 80, the second base support portion 86, the second tubular portion 87, and the second belt portion 88 are stretched over the back frame member 65, and particularly the back frame member 66 of the back frame member 65. First, the pair of side frame portions 67a forming the back frame member 66 of the one side portion 65a of the back frame member 65 are extended by the through holes 88a formed between the second base support portion 86 and the second belt portion 88. One of the side frame portions 65a of the back frame member 65 penetrates the through hole 88a, and the second base support portion 86 and the second belt portion 88 are stretched in the width direction. Further, the second base support portion 86 and the second base support portion 86 can be effectively restricted. The belt portion 88 moves along the longitudinal direction of the side portion 65a of the back frame member 65, that is, in the front-rear direction. On the other hand, the connecting portion 65b of the back frame member 65 formed by the connecting frame portion 67b of the back frame member 66 is passed through the through hole 87a of the second cylindrical portion 87 of the base seat 80. Since the second tubular portion 87 is held by the connecting portion 65b of the back frame member 65, and the second base supporting portion 86 and the second belt portion 88 are restricted from moving in the front-rear direction, the back of the base seat 80 is back. The portion of the back support 52 that is supported by the frame member 65 is maintained in a state in which the front and rear directions (or the vertical direction) and the width direction are stretched.

As shown in FIG. 5, the other end edge 81c (rear end edge) of the first base support portion 81 on the opposite side to the end edge (front end edge) 81b of the first tubular portion 82 is provided, and the second cylindrical shape is provided. The other end edge (lower end edge) 86c of the first base support portion 81 on the opposite side of the one end edge (upper end edge) 86b of the portion 87 is connected. The first base support portion 81 and the second base support portion 86 may be integrally formed of a single piece of material. Then, referring to FIGS. 6 to 9, according to the method described below, as shown in FIG. 5, the cylindrical portions 82, 87 and the belt portions 83, 88 may be provided in advance to the base supporting portions 81, 86. The seat support unit 50 is mounted to the seat frame member 60 and the back frame member 65.

In the following description, the base seat 80 is first attached to the frame members 61 and 66 of the frame members 60 and 65 forming one side. 6 to 8 show that the second base support portion 86, the second tubular portion 87, and the second belt portion 88 of the base seat 80 are attached to the back frame member 66 forming the back frame member 65. For example, the illustration of other parts of the base seat 80 is omitted.

First, as shown in FIG. 6, the second base support portion 86 is folded back from the state shown in FIG. 5 so that the second cylindrical portion 87 passes through the through hole 88a. Thereby, the second tubular portion 87 is exposed from the opening of the through hole 88a on the lower end edge 86c side of the second base support portion 86. Next, as shown in FIG. 6, the side frame portion 67a of the substantially U-shaped back frame member 66 is inserted into the through hole 87a of the second cylindrical portion 87 from the one end portion 66a. Thereafter, as shown in FIG. 7, the back frame member 66 is moved in the second tubular portion 87 so that the connecting frame portion 67b of the back frame member 66 is positioned in the through hole 87a of the second cylindrical portion 87.

Further, it is preferable that the back frame member 66 formed of a single metal pipe has two or more bends in a region where the one side frame portion 67a and the connection frame portion 67b are connected by two or more bending processes. In the region where the other side frame portion 67a and the connecting frame portion 67b are connected, at least two or more bending is performed by performing the bending process twice or more. In the illustrated example, each of the side frame portions 67a and the connecting frame portion 67b of the back frame member 66 is bent by secondary bending. In other words, in the region where the side portion 65a on one side of the back frame member 65 and the joint portion 65b are connected, the back frame member 66 formed of one metal tube is bent at two places, and the side portion 65a on the other side of the back frame member 65. versus In the region where the connecting portion 65b is connected, the back frame member 66 formed of one metal pipe is bent at two places. According to this configuration, as shown in FIG. 6, when the back frame member 66 is moved in the second tubular portion 87, the curved portion between the side frame portion 67a and the connecting frame portion 67b can smoothly pass through the second tubular portion. 87. Further, it is not necessary to increase the size of the through hole 87a of the second tubular portion 87 by more than necessary. Further, the above is applied not only to the metal pipe included in the back frame member 65 but also to the metal pipe included in the seat frame member 60 to form the seat frame member 61.

Then, as shown in FIG. 7 and FIG. 8, the connection frame portion 67b inserts the back frame member 66 that has passed through the through hole 87a of the second cylindrical portion 87 into the through hole 88a from the side of the connection frame portion 67b. Then, the back frame member 66 is moved from the lower end edge 86c side of the second base support portion 86 toward the upper end edge 86b side. As a result, as shown in FIG. 8, the second cylindrical portion 87 accommodating the connecting frame portion 67b is exposed from the opening of the through hole 88a on the lower end edge 86c side of the second base supporting portion 86, and further, the base seat 80 is mounted. At a specific location on the back frame 66.

By the same steps as the above steps, as shown in FIG. 9, the first base support portion 81, the first tubular portion 82, and the first belt portion 83 of the base seat 80 can be attached to the seat frame member 60. The specific position of the seat frame member 61. From the state shown in FIG. 9, the support base material 63 is assembled to the seat frame member 61, and the end member 68 is assembled to the back frame member 66. Then, the seat support unit 50 can be manufactured by assembling the end member 68 to the support base 63.

In this manner, the seat support unit 50 does not have to be formed between the base support portions 81, 86 and the belt portions 83, 88 as compared with the size between the pair of side portions 60a, 60a of the frame members 60, 65. The through holes 83a, 88a are largely set. On the contrary, the frame members 61 and 66 are elastically deformed by the above operation. The interval between the pair of side frame portions 62a and 67a can be reduced. Therefore, the base support portions 81 and 86 and the belt portions 83 and 88 are stretched in a state in which the base seat 80 is installed. The base support portions 81 and 86 and the belt portions 83 and 88 may be formed. Further, as shown in Fig. 6, when the frame members 61 and 66 pass through the tubular portions 82 and 87, it is different from the conventional ones, and the other portions of the frame members 61 and 66 do not pass through the other tubular portions. Therefore, unlike the conventional one, it is not necessary to consider the mounting work, and the cylindrical portions 82 and 87 can be disposed at appropriate positions with respect to the base supporting portions 81 and 86, mainly considering the shape of the final frame members 60 and 65. Further, when the frame members 61 and 66 are passed through the tubular portions 82 and 87, the frame members 61 and 66 can be maintained in an appropriate posture and position with respect to the tubular portions 82 and 87. As a result, it is not necessary to have a tubular shape as is conventional. The internal sizes of the sections 82, 87 are greatly set. Therefore, the stretched state of the base seat 80 mounted on the frame members 60, 65, that is, the stretched process, can be stabilized and reinforced, and the assembly work of the seat support unit 50 can be greatly improved.

However, in the present embodiment, as shown in Fig. 3, a joint frame member 55 is provided between both end portions of the seat frame member 60 or between both end portions of the back frame member 65. Then, as shown in FIG. 4, the tension member 79 extends between the base seat 80 and the joint frame member 55, and the tension state of the base seat 80 can be extended by the tension member 79. In the present embodiment shown in the drawing, the connecting frame member 55 is formed of a metal pipe formed of, for example, aluminum or the like, and both ends thereof are fixed to the supporting base material 63 of the seat frame member 60.

Further, as shown in FIGS. 1 to 4, the seat supporting unit 50 has a third frame member (upper frame member) 70 connected to the back frame member 65 and swingable relative to the back frame member 65; and a fourth frame Component (side frame element) The member 75 is connected to the third frame member 70 and the seat frame member 60, respectively. The fourth frame member 75 is swingable with respect to the third frame member 70 and the seat frame member 60.

In the present embodiment, the third frame member 70 is indirectly connected to the back frame member 65 by the two connecting members 53 disposed to be separated from each other in the width direction. The connecting piece 53 is fixed to the joint portion 65b of the back frame member 65, that is, the joint frame portion 67b of the back frame member 66. Then, the lower end portion of the third frame member 70 is swingably assembled to the connecting member 53. On the other hand, in the present embodiment, a pair of fourth frame members 75 are provided on both sides of the back frame member 65. Each of the fourth frame members 75 is a support base material 63 whose lower end portion is pivotally provided on the corresponding side. Further, the upper end portion of each of the fourth frame members 75 is provided with a connection engagement portion (connection engagement mechanism) 76 that is engageable with the connection engagement portion (connection engagement mechanism) 71 of the third frame member 70. Each of the fourth frame elements 75 is swingably connected to the third frame element 70 by the engagement of the connection engagement portions 71 and 76. That is, in the present embodiment, each of the fourth frame members 75 is directly connected to the third frame member 70 and the seat frame member 60 without passing through other members.

However, the present invention is not limited to the illustrated example, and the third frame member 70 may be directly connected to the back frame member 65 without passing through other members. Further, the fourth frame member 75 may be indirectly connected to at least one of the third frame member 70 and the seat frame member 60 through a member constituting the stroller body 15 other than the seat support unit 50, for example.

The constituent parts forming the above-described seat supporting unit 50 are connected to each other, and as a result, the seat supporting unit 50 forms a unit which can be separated from the stroller body 15. Next, referring mainly to FIG. 1 and FIG. 2, the support is detailed. The stroller body 15 of the above-described seat support unit 50.

As shown in FIGS. 1 and 2, the stroller body 15 has a main body frame 16 having left and right front legs 22 and left and right rear legs 24, and wheels (front wheels) 23 rotatably disposed at the lower ends of the front legs 22; A wheel 25 is rotatably disposed at a lower end of each of the rear legs 24; and a handle 38 is swingable relative to the body frame 16 between a face-to-face push position and a back push position. The main body frame 16 has left and right first connecting elements 28, and the front legs 22 and the rear legs 24 on the corresponding sides are respectively pivoted, and also function as left and right handrails; the second and second connecting members 26 are pivoted on the opposite side. The rear end portion of the coupling member 28; the left and right front side support members 40, the front legs 22 assembled to the corresponding sides; and the left and right rear side support members 45 are assembled to the rear legs 24 on the corresponding sides.

The upper end portion of the front leg 22 on the corresponding side and the upper end portion of the rear leg 24 on the corresponding side are pivotally provided to the respective first connecting elements 28. Each of the second connecting members 26 is coupled to the rear side support member 45 and swingable relative to the rear side support member 45. In particular, in the illustrated example, the second coupling element 26 is pivotally mounted to the rear side support element 45. That is, the second coupling element 26 is directly coupled to the rear side support member 45 in a swingable manner.

In the stroller 10 of the present embodiment, the front side support member 40 has a width extending portion 42 fixed to the intermediate portion of the front leg 22, and a front side support portion 41 connected to the width extending portion 42. The front side support portion 41 is a shaft member that extends through the width direction extending portion 42 and the front leg 22, and is pivotally provided to the width extending portion 42 and the front leg 22. Thereby, the front side support portion 41 is swingable with respect to the front leg 22.

The front side support member 40 of the front side support member 40 is fixed to the seat support unit 50. In the stroller 10 of the present embodiment, the front side support portion 41 is fixed. A seat frame member 60 is provided to the seat support unit 50. In more detail, each of the front side support portions 41 is fixed to a side frame portion 62a that forms a corresponding side of the seat frame member 61 of the seat frame member 60. As shown in FIG. 3, a recessed portion of the seat frame member 61 that accommodates the seat frame member 60 from above is formed at an upper end portion of the front side support portion 41. In a state in which the seat frame member 61 is disposed inside the recessed portion, the seat frame member 61 is fixed to the front side support portion 41 by, for example, a pin or the like.

The rear side support member 45 has a rear side support portion 46 that is pivotally mounted to the seat support unit 50. In the present embodiment, the rear side support portion 46 is pivotally provided to the seat frame member 60 of the seat support unit 50. In more detail, each of the rear side support portions 46 is pivotally provided to the support base material 63 forming the seat frame member 60 using the shaft member 49. Thereby, the seat frame member 60 is supported from below by the rear side support member 45.

As shown in FIG. 2, the shaft member 49 penetrates the upper end portion of the rear side support portion 46. On the other hand, the rear side support portion 46 is connected to the rear leg 24 in the lower end portion. In particular, in the present embodiment, the rear side support portion 46 is pivotally provided at the intermediate portion of the rear leg 24. That is, the rear side support portion 46 is swingable with respect to the rear leg 24 and is directly connected to the rear leg 24. Further, in the illustrated example, the rear side support member 45 is constituted only by the rear side support portion 46.

As shown in FIG. 1, the body frame 16 has a footrest 17 extending between a pair of front legs 22 and a rear connecting material 19 extending between a pair of rear legs 24, as shown in FIG. The shield member 18 extends between the pair of first coupling elements 28.

The U-shaped handle 38 is swingably coupled with respect to the body frame 16 formed as described above. The handle 38 is rotatable at both ends of the U-shape (can be The rear side support member 45 is coupled to the corresponding side. More specifically, the handle 38 is pivotally provided to the rear side support member 45 rear side support portion 46, the second joint member 26, and the seat support unit 50 using the shaft member 49. The handle 38 has a handle securing member 30 that is slidable relative to the handle 38 along the length of the handle 38. The handle fixing member 30 is engageable with the engaging pin 31 provided on the body frame 16. By engaging the engaging pin 31 with the handle fixing member 30, the handle 38 is locked in the face-to-face push position or the back push position.

The stroller 10 formed as described above can be folded into a folded state from the unfolded state shown in Figs. 1 and 2 . In the folding operation, the constituent elements forming the stroller 10 are mutually rotated (pivoted and oscillated) centering on the axis extending in the width direction.

Specifically, the handle 38 disposed at the back push position is pulled up to the upper rear side, and then pressed downward, so that the rear side support member 45 rear side support portion 46 is clockwise with respect to the rear leg 24 in FIG. The direction is swivel. With this operation, the first connecting member 28 and the seat frame member 60 of the seat supporting unit 50 are rotated in the clockwise direction in FIG. 2 with respect to the second connecting member 26. By this operation, the handle 38 and the forefoot 22 are disposed in a side view of the stroller 10, which are disposed close to and slightly parallel, and the position of the handle 38 is lowered. As described above, the stroller 10 can be folded, and the size of the stroller 10 in the front-rear direction and the up-and-down direction can be reduced. On the other hand, the stroller 10 is unfolded from the folded state as long as it is the reverse of the folding operation described above.

That is, in the stroller 10, the rear side support member 45 also functions to be coupled during the folding operation of the stroller 10 and the deployment operation of the stroller 10. Similarly, a portion of the seat support unit 50 (specifically, from the rear side branch The region in which the support member 45 is pivoted, the portion of the region to which the front support member 40 is fixed, and the front support member 40 also function as a link during the folding operation of the stroller 10 and the deployment operation of the stroller 10.

In the present embodiment as described above, the infant rides on the seat 13 supported by the seat support unit 50. The seat support unit 50 includes frame members 60 and 65 having a pair of side portions 60a and 65a and coupling portions 60b and 65b, and a base seat 80 attached to the frame members 60 and 65. Then, the base seat 80 has base support portions 81 and 86 located in a region surrounded by the three sides by the pair of side portions 60a and 65a and the joint portions 60b and 65b. The cylindrical portions 82 and 87 are provided at One end edges 81b and 86b of the base supporting portions 81 and 86 penetrate through the connecting portions 60b and 65b, and the belt portions 83 and 88 are connected at both ends to the side edges 81a and 86a of the base supporting portions 81 and 86, and are supported by the base. Between the portions 81 and 86, through holes 83a and 88a through which the pair of side portions 60a pass are formed.

In the case of the seat support unit 50, when the base seat 80 is mounted on the frame members 60, 65, it is not necessary to pass one side of the three-frame body sequentially through the pre-made base seat. Three cylindrical parts. For example, as described above, only the frame members 61 and 66 in which the connection frame portions 62b and 67b pass through the tubular portions 82 and 87 are inserted in one direction between the base support portions 81 and 86 and the belt portions 83 and 88. The base seat 80 can be attached to the frame members 60, 65 in the through holes 83a, 88a formed. In this case, it is not necessary to previously set the sizes of the through holes 83a and 88a in comparison with the size of one of the side members 60a and 65a of one of the frame members 60 and 65. On the other hand, since the frame members 61 and 66 are elastically deformed during the mounting work, the interval between the pair of side frame portions 62a and 67a can be reduced. Therefore, the base support can be supported as long as the base seat 80 is installed. The portions 81 and 86 and the belt portions 83 and 88 are in a state of being stretched, and the base supporting portions 81 and 86 and the belt portions 83 and 88 may be prepared in advance. Further, when the frame members 61 and 66 are passed through the tubular portions 82 and 87 in advance, it is different from the conventional ones, and the other portions of the frame members 61 and 66 do not pass through the other tubular portions. Therefore, unlike the conventional one, the cylindrical portions 82 and 87 can be disposed at appropriate positions with respect to the base supporting portions 81 and 86 in consideration of the shape of the final frame members 60 and 65. Further, when the frame members 61 and 66 are passed through the tubular portions 82 and 87, the frame members 61 and 66 can be maintained in an appropriate posture and position with respect to the tubular portions 82 and 87. As a result, it is not necessary to have a cartridge as is conventional. The internal dimensions of the sections 82, 87 are greatly set. From the above, it is ensured that the base seat 80 is properly tensioned in both the front-rear direction and the width direction. Thereby, it is possible to suppress deformation of the infant when seated on the seat seat 80 supporting the seat 13, and the seat support unit 50 can exhibit appropriate impact absorption. From the above, the productivity of the stroller 10 can be improved, and the ride comfort of the stroller 10 can be improved.

Further, from the viewpoint of improving the ride comfort of the stroller 10, the base seat 80 may be attached to the frame members 60 and 65, and the base member 80 may be fixed to the frame member by using a fixture such as a rivet. 60, 65, in particular the side portions 60a, 65a of the frame members 60, 65. At this time, the weight of the infant passing through the seat 13 is hard to be applied to the belt portions 83 and 88 having a narrow width, and is mainly received by the base supporting portions 81 and 86. As a result, the amount of extension of the base seat 80 to the width direction of the stroller 10 can be effectively reduced, whereby the amount of deformation of the base seat 80 when the infant is seated can be more effectively reduced.

Various modifications can be made to the embodiments described above. An example of the modification will be described below.

In the above embodiment, the seat support unit 50 is shown as having an example of the seat frame member 60 and the back frame member 65 and the base seat 80 that is stretched over the seat frame member 60 and the back frame member 65. Not limited to this example. For example, as shown in FIG. 10, the seat support unit 150 may have: a frame member 160; a base seat 180 mounted to the frame member 160; and a plate member 69 that is relatively swingable relative to the frame member 160. In the seat supporting unit 150 shown in Fig. 10, the frame member 160 can be configured in the same manner as the seat frame member 60 of the above-described embodiment. The base seat 180 may be configured to include the first base support portion 81, the first tubular portion 82, and the first belt portion 83 including the base seat 80 of the above-described embodiment. Then, the rear end edge 81c of the first base support portion 81 is connected to the plate member 69. Further, in the illustrated example, the plate member 69 is swingably coupled to one of the pair of frame members 160 to support the substrate 63. In the seat support unit 150 shown in FIG. 10, the frame member 160 and the base seat 180 form a seat support body 51, and the plate member 69 forms a back support body 52.

Further, as shown in FIG. 11, the seat support unit 250 may have a frame member 265, a base seat 280 attached to the frame member 265, and a plate member 64 that is relatively swingable relative to the frame member 265. In the seat supporting unit 250 shown in Fig. 11, the frame member 265 can be configured in the same manner as the back frame member 65 of the above-described embodiment. The base seat 280 can be configured to include the second base support portion 86, the second tubular portion 87, and the second belt portion 88 of the base seat 80 of the above-described embodiment. Then, the lower end edge 86c of the second base support portion 86 is connected to the plate member 64. Further, in the illustrated example, the plate member 64 is swingably coupled to the frame member 265. In the seat support unit 250 shown in FIG. 11, the frame member 265 and the base seat 280 form a back support 52, and the plate member 64 forms a seat support. Body 51.

Further, the plate members 64 and 69 may be indirectly connected to the frame members 160 and 265 through other members, for example, members constituting the stroller body 15 other than the seat supporting unit, or may be directly as shown in the drawings. Connected to the frame members 160, 265.

Moreover, the stroller 10 can be folded so as to be folded in the front-rear direction and then folded, and also miniaturized in the width direction. Specifically, the member extending in the width direction of the stroller body 15 , that is, the seat supporting unit 50 , the handle 38 , the guard member 18 , the pedal 17 , the rear connecting member 19 , and the like may have a pivot (bending point). These members are folded as described above to be miniaturized in the front-rear direction, and are more bendable around the hub.

Further, in the stroller 10 described in the above embodiment, the display handle 38 is configured to be swingable between the rear push position (rear position) and the face-to-face push position (front position). That is, in the above embodiment, the display handle 38 and the second connecting member 26 are separately provided, and the handle 38 is configured to be swingable with respect to the main body frame 16. However, the stroller 10 may be configured such that the handle 38 is fixed to the rear position and cannot be swung from the rear push position. Specifically, the pair of second connecting members 26 may be formed by a portion corresponding to the lower end portion of the handle 38. In other words, the second connecting member 26 may be extended beyond the joint with the first connecting member 28 to constitute a part of the handle 38.

Further, as described above, several modifications of the above-described embodiment have been described, and of course, a plurality of modifications may be combined as appropriate.

Claims (11)

A seat supporting unit that holds a seat for a stroller, comprising: a frame member having: a pair of side portions; and a coupling portion that connects the pair of side portions on one side end portion And the base seat is mounted on the frame member; the base seat has a base support portion, at least a portion of which is located in a region surrounded by the three sides by the pair of side portions and the connecting portion; a portion provided at an end edge of the base support portion and having the connecting portion penetrating therethrough; and a belt portion having a side edge connected to one side edge of the base support portion and the other end portion connected to the other side of the base support portion The side edge forms a through hole through which the pair of side portions pass between the base support portion and the base support portion. A seat supporting unit according to claim 1, wherein said frame member comprises a bent one of metal pipes; and said metal pipe at least partially forms said pair of side portions and said connecting portion. The seat supporting unit according to claim 2, wherein the metal pipe is formed by bending at least two of the one side portion of the pair of side portions and the connecting portion; The other side of the part and the aforementioned connecting part At least two of the connected areas are curved. The seat supporting unit of claim 1, further comprising: a second frame member having: a pair of side portions; and a connecting portion connecting the pair of side portions in an end portion on one side; the base seat further The second base support portion is connected to the base support portion on a side opposite to the side on which the tubular portion is provided, and at least a portion is located from the pair of side portions and the connection portion of the second frame member. In the region surrounded by the three sides, the second tubular portion is provided at an end edge of the second base supporting portion opposite to the side connected to the base supporting portion, and penetrates the connecting portion of the second frame member And a second belt portion having a side edge connected to one side of the second base support portion, and the other end portion connected to a side edge of the other side of the second base support portion, and the second base support portion A through hole through which the pair of side portions of the second frame member pass is formed. The seat supporting unit of claim 4, wherein the frame member and the second frame member are opposite to each other and are swingably coupled. A seat supporting unit according to claim 4, wherein said second frame member includes a bent one of metal pipes, and said metal pipe at least partially forms said pair of side portions and said connecting portion. The seat support unit of claim 6, wherein the aforementioned second frame member is The metal pipe is formed by bending at least two of the one side portion of the pair of side portions and the connecting portion, and the other side portion of the pair of side portions is connected to the side portion At least two of the areas connected by the department are curved. The seat supporting unit of claim 4, wherein a seat support body facing the buttocks of the infant seated on the stroller is formed by the frame member and a portion supported by the frame member of the base seat; A back support that faces the back of the infant is formed by the second frame member and a portion supported by the second frame member of the base seat. The seat support unit of claim 1, further comprising: a plate member swingably disposed relative to the frame member; wherein the frame member and the base seat are formed to face an infant seated in the stroller One of the seat support body of the buttocks and the back support body facing the back of the infant; and the other of the seat support body and the back support body is formed by the plate member. A seat support unit according to claim 9, wherein said plate member is swingably coupled to said frame member. A stroller including a seat support unit according to any one of claim 1 to claim 10; and a stroller body supporting the aforementioned seat support unit.