stroller

Abstract

To provide a baby buggy whose base seat does not come into contact with the ground when the baby buggy is folded.SOLUTION: A baby buggy 10 of the present invention has a handlebar frame 12, front wheel frame 14, and rear wheel frame 16 coupled with one another via coupling parts 18. The front wheel frame 14 and handlebar frame 12 are turned to adjoin the rear wheel frame 16, whereby the baby buggy 10 is folded. A rear end of a seat 20 juts out of a rear coupling fame 21 which supports the seat 20 while extending from the rear wheel frame 16 toward the front wheel frame 14. A distal end of a base seat 24 which covers the top surfaces of the seat 20 and a backrest plate 25 is fixed to the front wheel frame 14. When the baby buggy is folded, the backrest plate 25 is pushed upward at the rear end of the seat 20.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a stroller in which a handle frame, a front wheel frame and a rear wheel frame are rotatably connected within a predetermined range via a connecting portion, and can be folded by rotating the front wheel frame and the handle frame toward the rear wheel frame side.

Background Art

[0002] A stroller for carrying an infant is configured to be foldable during storage (when not in use), when boarding transportation, and the like (disclosed in, for example, Patent Document 1). Fig. 8 is an explanatory view of a conventional stroller when folded. As shown in (1) of the figure, a base seat 1 includes a seat portion 2 and a backrest 3, and the seat portion 2 is provided with a fold so as to be folded in half when the stroller is folded. As shown in (2), when the handle frame 4 and the front wheel frame 5 are rotated toward the rear wheel frame 6 side, the seat portion 2 of the base seat 1 is folded in half along the fold. In the fully folded state of the stroller as shown in (3), the tip end portion of the backrest 3 of the base seat 1 comes into contact with the ground in the same manner as the rear wheels 7, which may cause contamination or damage. This contact occurs because the length of the backrest 3 is longer than the length from the connecting portion 8 to the tip of the rear wheel 7. If the backrest 3 is shortened to avoid contact, this will affect the usability for users, such as restricting the applicable height of the infant.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] An object of the present invention, in view of the above problems in the prior art, is to provide a stroller in which the base seat does not come into contact with the ground when the stroller is folded. [Means for solving the problem]

[0005] As a first means to solve the above problems, the present invention provides a stroller in which a handle frame, a front wheel frame, and a rear wheel frame are connected via a connecting portion, and the front wheel frame and the handle frame are foldable by rotating them so that they are close to the rear wheel frame, wherein the rear end of the seat protrudes rearward from a rear connecting frame that extends from the rear wheel frame toward the front wheel frame and pivotally supports the seat, the tip of a base sheet that covers the upper surface of the seat and backrest is fixed to the front wheel frame, and when folded, the rear end of the seat pushes the backrest upward. According to the first method described above, when folded, the distance between the top of the backrest and the ground can be easily adjusted, preventing the base sheet from coming into contact with the ground and thus preventing soiling and damage to the base sheet.

[0006] As a second means for solving the above problems, the present invention provides a stroller characterized in that, in the first means, when unfolded, the tip of the backrest plate rests on the seat. According to the second method described above, the base sheet can be reliably lifted upwards. [Effects of the Invention]

[0007] According to the present invention, when folded, the distance between the top of the backrest and the ground can be easily adjusted, preventing the base sheet from coming into contact with the ground and thus preventing soiling and damage to the base sheet. Furthermore, the overall height when folded can be reduced, and a structure that can stand on its own when folded can be achieved. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of the stroller of the present invention, taken from diagonally above. [Figure 2] This is a perspective view of the stroller of the present invention, taken from a diagonal downward angle. [Figure 3] This is a magnified view of the sheet. [Figure 4] This is a cross-section of the sheet. [Figure 5] This is a cross-sectional view of the step. [Figure 6] This is an explanatory diagram of the stroller of the present invention when folded. [Figure 7] This is a cross-sectional view of the modified sheet. [Figure 8] This is a diagram illustrating the folding position of a conventional stroller. [Modes for carrying out the invention]

[0009] Embodiments of the stroller of the present invention will be described in detail below with reference to the drawings.

[0010] [Stroller 10] Figure 1 is a perspective view of the stroller of the present invention from diagonally above. Figure 2 is a perspective view of the stroller of the present invention from diagonally below. Figure 3 is an enlarged view of the seat. Figure 4 is a cross-sectional view of the seat. Figure 5 is a cross-sectional view of the step. The stroller 10 of the present invention employs a configuration in which the handle frame 12, the front wheel frame 14, and the rear wheel frame 16 are connected via a connecting part 18, and the front wheel frame 14 and the handle frame 12 can be rotated to move closer to the rear wheel frame 16, thereby enabling folding. The handle frame 12 is a long, nearly U-shaped frame, with one end connected to a connecting part 18 and the other end forming the handle 13. The handle 13 rotates via a handle connecting part 13a. The handle 13 is equipped with an operation button 13b for switching between the unfolded and folded states of the stroller 10.

[0011] The front wheel frame 14 is a short, roughly U-shaped frame, with one end connected to a connecting part 18 and the front wheel 15 positioned at the other end. A step 30 made of a plastic resin material with a predetermined rigidity is attached to the front wheel 15 at the tip (other end) of the front wheel frame 14. The step 30 serves as a footrest for infants. The rear wheel frame 16 is a pair of straight (rod-shaped) frames, with one end connected to the connecting part 18 and the other end to which the rear wheel 17 is positioned. The connecting section 18 connects the handle frame 12, the front wheel frame 14, and the rear wheel frame 16, with the rear wheel frame 16 being fixed. The connecting section 18 is a pair of members that pivotally support the handle frame 12 and the front wheel frame 14 so that they move closer to the rear wheel frame 16. When the stroller 10 is unfolded, the handle frame 12 and the front wheel frame 14 are arranged in the same straight line, and the rear wheel frame 16 extends in a direction perpendicular to the handle frame 12 and the front wheel frame 14.

[0012] The seat 20 is the seating surface for infants and toddlers, and is mounted across a U-shaped rear connecting frame 21 extending forward and downward from the rear wheel frame 16, and a U-shaped front connecting frame 22 extending rearward and downward from the front wheel frame 14. The rear of the seat 20 is attached to the rear connecting frame 21 via a fixing belt 21a so as to be able to rotate freely around its axis. At this time, the rear of the seat 20 protrudes a predetermined length backward from the rear connecting frame 21. The amount of protrusion of the rear of the seat 20 is set by the length of the base seat 24, which will be described later. By arbitrarily changing the amount of protrusion of the rear of the seat 20, the height of the base seat 24 from the ground when folded can be adjusted, and the overall height can also be adjusted. On the other hand, the front of the seat 20 is mounted resting on the front connecting frame 22.

[0013] The base seat 24 is a fabric member formed in a bag-like shape to surround the seated infant, with a backrest plate 25 enclosed on its underside to support the back of the infant seated on the seat 20. The front end of the base seat 24 is fixed to a step 30 located at the front of the front wheel frame 14 via a fixing belt 24a. The upper part of the base seat 24 is fixed to the handle frame 12. The backrest plate 25 is made of a plastic resin material with predetermined durability and weight. As shown in Figure 4, the backrest plate 25 is positioned at a predetermined distance from the rear end of the seat 20. When the stroller 10 is unfolded, the base sheet 24 with its leading end and upper side fixed in this manner spreads to hang down from the handle frame 12 under the weight of the backrest plate 25 on the lower surface, covers the upper surface of the seat 20, and forms an accommodation space for an infant. In addition to the form in which the backrest plate 25 is included in the base sheet 24 as shown in FIG. 4, similar to the seat 20, a form may be adopted in which the backrest plate 25 is adhered to the surface of the backrest plate with an adhesive or fixed with a fixing belt to cover the surface. In addition to the form in which the leading end of the base sheet 24 is fixed to the step 30 via the fixing belt 24a, a form may be adopted in which the leading end of the base sheet 24 is fixed to the leading end side portion of the front wheel frame 14 so that the base sheet 24 is not pulled rearward toward the backrest plate 25 side when the stroller is folded. The front guard 26 is mounted across the pair of connecting portions 18 and is formed of a flexible member.

[0014] [Action] The action of the stroller of the present invention having the above configuration will be described below. FIG. 6 is an explanatory diagram of the stroller of the present invention when folded. (1) of the figure shows a cross-sectional side view when the stroller 10 is unfolded. As shown in (2) of the figure, the operation button 13b of the handle 13 is operated to fold the handle frame 12 and the front wheel frame 14 so as to approach the rear wheel frame 16 side. As shown in (3) of the figure, in the process of completing folding, the leading end of the base sheet 24 is fixed to the step 30 of the front wheel frame 14, and when the rear end of the seat 20 rotates upward, the base sheet 24 containing the adjacent backrest plate 25 is lifted to be pulled upward. For this reason, the upper portion of the base sheet 24, in other words, the upper portion of the backrest plate 25, is arranged at a predetermined height from the ground. Therefore, when folded, unlike in the conventional art, the upper portion of the base sheet 24 does not come into contact with the ground, and there is no risk of dirt or damage.

[0015] [Modified Example] Fig. 7 is a cross-sectional view of a modified seat. As illustrated, the modified stroller is configured such that the tip end of the backrest plate 25a rests on the upper surface of the seat 20 when the stroller 10 is unfolded. According to the stroller of this modified example, when the stroller is folded, there is no risk that the tip end of the backrest plate 25a will fit into the back surface of the rear end of the seat 20, and the base seat 24 can be reliably pulled upward and lifted. The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments in any way, and various modifications can be made without departing from the spirit and scope of the present invention. Furthermore, the present invention is not limited to the combinations shown in the embodiments, and can be implemented by various combinations. Description of Reference Numerals

[0016] 1 Base seat 2 Seat 3 Backrest 4 Handle frame 5 Front wheel frame 6 Rear wheel frame 7 Rear wheel 8 Connecting portion 10 Stroller 12 Handle frame 13 Handle 13a Handle connecting portion 13b Operation button 14 Front wheel frame 15 Front wheel 16 Rear wheel frame 17 Rear wheel 18 Connecting portion 20 Seat 21 Rear connecting frame 21a Fixing belt 22 Front connecting frame 24 Base seat 24a Fixing belt 25,25a Backrest plate 26 Front guard 30 Step

Claims

1. In a stroller in which the handle frame, front wheel frame, and rear wheel frame are connected via a connecting part, and the front wheel frame and the handle frame can be rotated to bring them closer to the rear wheel frame to fold, A stroller characterized in that the rear end of the seat protrudes rearward from a rear connecting frame that extends from the rear wheel frame toward the front wheel frame and pivotally supports the seat, the tip of a base sheet that covers the upper surface of the seat and backrest is fixed to the front wheel frame, and when folded, the rear end of the seat pushes the backrest upward.

2. A stroller as described in claim 1, A stroller characterized in that, when unfolded, the tip of the backrest plate rests on the seat.

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