baby carriage

Abstract

To provide a baby carriage in which a hood can be easily opened and closed.SOLUTION: A baby carriage (1) includes: a carriage body frame (10), a front hood frame (4) coupled to the carriage body frame rotatably with a rotation regulation force via a first rotary shaft (71); and a middle hood frame (5) coupled to the front hood frame rotatably with a rotation regulation force, via a second rotary shaft (72) provided at a position different from that of the first rotary shaft (71).SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] This invention relates to a baby stroller equipped with a hood.

Background Art

[0002] Conventionally, in order to prevent direct sunlight from hitting the infant sitting in the seat part, a baby stroller has a hood that covers the upper space of the seat part.

[0003] The prior art of Japanese Patent Application Laid-Open No. 2004-203354 (Patent Document 1) discloses a baby stroller in which the opening degree of the hood is changed by changing the angle between a plurality of hood ribs bent in an inverted U shape. It is disclosed that the angle between the hood ribs can be held in a state where it is maximally widened or in a closed state by a hood opening degree adjusting member provided at both ends of the hood.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In order to change the angle between the hood ribs in the baby stroller disclosed in the above Patent Document 1, it is necessary to operate the hood opening degree adjusting member before opening and closing the hood, and it was not possible to easily open and close the hood with one hand.

[0006] This invention has been made to solve the above problems, and its object is to provide a baby stroller capable of easily opening and closing the hood.

Means for Solving the Problems

[0007] For this purpose, a stroller according to one aspect of the present invention comprises a body frame, a front canopy frame rotatably connected to the body frame via a first pivot axis with a rotation-restricting force, and a middle canopy frame rotatably connected to the front canopy frame via a second pivot axis provided at a different position from the first pivot axis with a rotation-restricting force.

[0008] Preferably, the system further includes a rear canopy frame that is rotatably connected to the vehicle frame with a rotational restricting force via a third pivot shaft located at a different position from the second pivot shaft.

[0009] Preferably, the rotational restricting force of the third drive shaft is greater than the rotational restricting force of the second drive shaft.

[0010] Preferably, the front hood bone has a curved shape that extends upward from the first pivot axis and then extends forward, and the second pivot axis is provided in the curved portion.

[0011] Preferably, the first and third rotational axes are located coaxially.

[0012] Preferably, the vehicle frame includes a pair of armrests provided at both ends in the width direction of the seat surface, a pair of armrest support members whose upper ends are connected to the rear ends of the pair of armrests, and a fourth pivot shaft connecting the armrests and the armrest support members, wherein the fourth pivot shaft is located coaxially with the first and third pivot shafts.

[0013] Preferably, the rear canopy bone has a curved shape that extends posteriorly from the third rotation axis and then rises upward.

[0014] Preferably, the anterior pericardium is located laterally to the medial pericardium on both sides, and the posterior pericardium is located more medially to the medial pericardium on both sides.

[0015] Preferably, the front hood, middle hood, and rear hood have an inverted U-shape, and their width and height dimensions decrease in the order of front hood, middle hood, and rear hood. [Effects of the Invention]

[0016] According to the stroller of the present invention, it is possible to easily open and close the hood.

Brief Description of the Drawings

[0017] [Figure 1] It is a perspective view showing a stroller according to an embodiment of the present invention. [Figure 2] It is an exploded perspective view of the connection portion between the hood and the body frame as viewed from one direction. [Figure 3] It is an exploded perspective view of the connection portion between the hood and the body frame as viewed from the other direction. [Figure 4] It is a right side view showing the state where all the hood bones are opened. [Figure 5] It is a perspective view showing the state where all the hood bones are opened. [Figure 6] It is a view showing the state where all the hood bones are closed, (A) is a right side view, and (B) is a perspective view. [Figure 7] It is a front view showing the state where all the hood bones are closed. [Figure 8] It is a right side view showing the folding operation of the stroller of the present embodiment, (A) shows the state where all the hood bones are opened, (B) shows the state where the rear hood bone and the middle hood bone are closed, (C) shows the state where the front hood bone is further closed, and (D) is a view showing the state where all the hood bones are closed. [Figure 9] It is a partially enlarged view corresponding to FIG. 8, (A) shows the state where all the hood bones are opened, (B) shows the state where the rear hood bone and the middle hood bone are closed, (C) shows the state where the front hood bone is further closed, and (D) is a view showing the state where all the hood bones are closed. [Figure 10] It is a right side view showing the unfolding operation of the stroller of the present embodiment, (A) shows the state where all the hood bones are closed, (B) and (C) show the state where the space between the middle hood bone and the rear hood bone is opened, and (D) is a view showing the state where all the hood bones are opened.

Mode for Carrying Out the Invention

[0018] Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and their description will not be repeated.

[0019] (Regarding the outline of the stroller) Referring to FIGS. 1 and 4, the outline of the stroller 1 according to the present embodiment will be described. The stroller 1 has a push bar that can be switched to the back-to-face position, and in FIG. 1, the state of being provided at the face-to-face push position is shown. Further, the stroller 1 is provided so as to be foldable. For ease of understanding of the invention, the drawings mainly show the body frame of the stroller, and illustration of the infant seat and the like is omitted. In the following description, the front-rear direction corresponds to the front-rear direction of the stroller, and the left-right direction corresponds to the left-right direction as viewed from the front of the stroller.

[0020] 0 The stroller 1 of the present embodiment includes, as a body frame 10, a pair of front legs 11, a pair of rear legs 13, an armrest 15, an armrest support member 17, a seat support member 18, and a backrest support member 19. The body frame 10 excluding the seat support member 18 and the backrest support member 19 is provided on the left and right spaced apart in the width direction (vehicle width direction) and forms a pair.

[0021] A front wheel 12 is provided at the lower end of each front leg 11 extending in the vertical direction. A rear wheel 14 is provided at the lower end of each rear leg 13 extending in the vertical direction behind each front leg 11. The lower ends of the pair of front legs 11 are connected by a front leg connecting member 21 extending in the width direction. The front leg connecting member 21 also functions as a footrest for the infant. The lower ends of the pair of rear legs 13 are connected by a rear leg connecting member 22 extending in the width direction.

[0022] ​

[0023] Referring to the figure, the rear end of the armrest 15 is rotatably connected to the upper end of the armrest support member 17, which extends in the vertical direction, via a fourth pivot shaft 74. Specifically, the rear end of the armrest 15 and the upper end of the armrest support member 17 are also connected to the canopy 3 via the fourth pivot shaft 74.

[0024] As shown in particular in Figure 1, a seat support member 18 is positioned below the armrest 15. The front end of the seat support member 18 is connected to the central part of the pair of front legs 11. The rear end of the seat support member 18 is rotatably connected via a pivot shaft 24 to the lower end of the push rod 20, the upper end of the reversal bracket 23, and the lower end of the armrest support member 17.

[0025] The rear end of the seat support member 18 is rotatably connected to the lower end of the backrest support member 19. The seat support member 18 supports the infant's seat from below, and the backrest support member 19 supports the infant's backrest from below. Although not shown in the figures, a hammock is stretched across the seat support member 18 and the backrest support member 19, and a cushion is attached to the hammock. As a result, a seat surface is formed on the seat support member 18, and the seat support member 18 supports the seat surface from below.

[0026] The front guard 16 is provided in front of the seat and crosses the seat in the width direction. Both ends of the front guard 16 in the width direction are provided inside the armrest 15. Both ends of the front guard 16 in the width direction are connected to the rear end of the seat support member 18.

[0027] The push bar 20 is mounted so as to be able to swing in the front-rear direction relative to the vehicle frame 10 via a pivot shaft 24. This allows the push bar 20 to be switched between a rearward pushing position and a frontward pushing position.

[0028] The armrest support member 17 is a member that extends vertically. The upper end of the armrest support member 17 is rotatably connected to the rear end of the armrest 15 via a fourth pivot shaft 74. The lower end of the armrest support member 17 is rotatably connected to the lower end of the push rod 20, the upper end of the reversing bracket 23, and the rear end of the seat support member 18 via a pivot shaft 24.

[0029] The lower end of the armrest support member 17 is provided with a locking mechanism (not shown) that can be locked against the rear leg 13. By releasing the lock on the locking mechanism, the lock between the rear leg 13 and the armrest support member 17 is released, allowing the stroller 1 to be folded. Alternatively, the upper end of the reversal bracket 23 may also be provided with a locking mechanism that can be locked against the rear leg 13.

[0030] (Regarding the folding structure) Next, the folding structure of the stroller 1 will be described. As described above, the rear end of the seat support member 18, the lower end of the armrest support member 17, the lower end of the push bar 20, and the upper end of the reversal bracket 23 are connected to each other via the pivot shaft 24. In addition, the lower end of the armrest support member 17 is provided to be switchable between a position where it is locked to the rear leg 13 and a position where it is unlocked.

[0031] To change from the unfolded state to the folded state, the push rod 20 is switched to the rear push position. Furthermore, the lock on the lower end of the armrest support member 17 is released from the rear leg 13, the reversal bracket 23 is inverted vertically, and the lower end of the push rod 20, which was in contact with the upper part of the rear leg 13, is brought into contact with the lower part of the rear leg 13.

[0032] To change from the folded state to the unfolded state, the reversal bracket 23 is inverted vertically, and the lower end of the push rod 20, which was in contact with the lower part of the rear leg 13, is brought into contact with the upper part of the rear leg 13. In this state, the locking part at the lower end of the armrest support member 17 is locked to the rear leg 13. Furthermore, the push rod 20 is switched to the facing push position. In this way, the vehicle frame 10 changes its shape from the unfolded state (rear push position) shown in Figure 1 to the folded state, or vice versa.

[0033] (Regarding the convertible top) Referring to Figures 1 to 7, the canopy 3 according to this embodiment will be described. The canopy 3 covers the area above the seat. The canopy 3 comprises a front canopy frame 4, a middle canopy frame 5, a rear canopy frame 6, a canopy fabric 9, and auxiliary canopy frames 95 to 98. Note that in Figures 2 and 3, the canopy frame bodies 49, 59, and 69, which will be described later, are not shown. Also, the direction indicated by arrow A in Figures 2 and 3 is outward relative to the seat, and the opposite direction is inward relative to the seat. In Figure 4, the canopy fabric 9 and auxiliary canopy frames 95 to 98 are shown with dashed lines.

[0034] The front canopy frame 4, the middle canopy frame 5, and the rear canopy frame 6 are arranged so that their angles to each other are variable. As shown in Figure 5, the front canopy frame 4 is rotatable via the first pivot shaft 71, the middle canopy frame 5 is rotatable via the second pivot shaft 72, and the rear canopy frame 6 is rotatable via the third pivot shaft 73. The front canopy frame 4 and the rear canopy frame 6 are attached to the vehicle frame 10, and the middle canopy frame 5 is attached to the front canopy frame 4. In this embodiment, the first pivot shaft 71, the third pivot shaft 73, and the fourth pivot shaft 74 described above are located coaxially. First, the configuration of the front canopy frame 4, the middle canopy frame 5, and the rear canopy frame 6 will be described in detail.

[0035] As shown in Figure 5, the front canopy frame 4 is rotatably connected to the outside of the armrest 15 via a first pivot axis 71. As shown in Figures 4 and 7, the front canopy frame 4 includes a front canopy frame base 40 and an inverted U-shaped front canopy frame body 49.

[0036] As shown in Figure 7, the front canopy base 40 holds both ends of the front canopy body 49. As shown in Figures 4 to 6, the front canopy base 40 has a curved shape that extends upward from the first pivot axis 71 and then extends forward. Specifically, the front canopy base 40 has an inverted L-shape in a side view and includes a first part 41 that extends vertically and a second part 42 that extends forward from the upper end of the first part 41. The angle between the first part 41 and the second part 42 is approximately 90 degrees. This makes it possible to increase the overall length of the canopy compared to conventional canopies with a straight shape, allowing it to cover a wider area. Furthermore, it can prevent infants from getting their fingers caught.

[0037] As shown in Figure 2, a recess 41a is provided at the lower end of the first portion 41. The first pin 81, a washer 82, and a spring 83 are located in this recess 41a. In particular, as shown in Figure 3, the first portion 41 is provided on the armrest 15 side with a gear-shaped first engaging portion 44 and a protrusion 44a that projects from the center of the first engaging portion 44 toward the armrest 15. The first engaging portion 44 engages with a first engaged portion (not shown) provided on the outside of the through hole 15a of the armrest 15 (in the direction of arrow A). The protrusion 44a passes through the through hole 15a of the armrest 15. In addition, a through hole 43 is provided at the lower end of the first portion 41, passing axially from the tip of the protrusion 44a through to the recess 41a. The first pin 81 described above passes through the through hole 43 in the front canopy frame 4, the through hole 15a in the armrest 15, and the through hole 63 in the rear canopy frame 6, which will be described later. As a result, the first pin 81 becomes the first pivot axis 71, and the front canopy frame 4 is rotatably mounted relative to the armrest 15.

[0038] The first engaging portion 44 engages with the first engaged portion provided on the outside of the through hole 15a of the armrest 15. This maintains the front canopy frame 4 at a plurality of predetermined angles (positions). In other words, a restricting force (rotation restricting force) is generated at the first pivot axis 71 that restricts rotation relative to the vehicle frame 10. If the front canopy frame 4 is pushed with a force stronger than this rotation restricting force, the engagement between the first engaging portion 44 and the first engaged portion on the outside of the armrest 15 is released, for example by elastic deformation, and the front canopy frame 4 rotates relative to the vehicle frame 10.

[0039] The second part 42 is provided with a fitting hole 45 that opens in the direction in which the second part 42 extends (forward). The fitting hole 45 is for fitting and holding the end of the front canopy frame body 49 (Figure 4).

[0040] As shown in Figure 2, a through hole 46 is provided at the corner (bent portion) where the first portion 41 and the second portion 42 intersect. As shown in Figure 3, the bent portion is provided with a cylindrical portion 48 that protrudes toward the armrest 15 and a gear-shaped second engaging portion 47 provided at the tip of the cylindrical portion 48. Inside the cylindrical portion 48 is the convex portion 58 of the central rib 5, which will be described later. As shown in Figure 2, a through hole 46 is provided inside the cylindrical portion 48 that penetrates in the axial direction. The second pin 85 passes through the through hole 46.

[0041] The front canopy frame body 49 is made of, for example, synthetic resin and has a certain degree of flexibility. Preferably, the front canopy frame body 49 has a roughly rectangular shape in cross-section.

[0042] As shown in Figure 5, the middle canopy rib 5 is rotatably connected to the front canopy rib 4 via a second pivot axis 72. As shown in Figures 4 and 7, the middle canopy rib 5 includes a middle canopy rib base 50 and an inverted U-shaped middle canopy rib body 59.

[0043] As shown in Figure 7, the middle canopy base 50 holds both ends of the middle canopy body 59. The middle canopy base 50 is located on both sides of the seat portion, inside the front canopy 4. As shown in Figure 2, the lower part of the middle canopy base 50 is provided with a protrusion 58 that projects outward (in the direction of arrow A) and a gear-shaped second engaging portion 57 provided at the base of the protrusion 58.

[0044] The protrusion 58 is located within the cylindrical portion 48 of the front canopy frame 4 described above. As shown in Figure 3, a recess 54 is formed on the armrest 15 side of the middle canopy frame base 50. A washer 86 and a spring 87 are placed in this recess 54. Also, as shown in Figure 2, a through hole 56 is provided at the lower end of the middle canopy frame base 50, which penetrates axially from the tip of the protrusion 58 to the recess 54. The second pin 85 described above passes through the through hole 46 of the front canopy frame 4 and the through hole 56 of the middle canopy frame 5. As a result, the second pin 85 becomes the second pivot axis 72, and the middle canopy frame 5 is rotatably mounted relative to the front canopy frame 4. The second pivot axis 72 is located in a different position from the first pivot axis 71.

[0045] The second engaged portion 57 engages with the second engaged portion 47 of the front canopy frame 4 described above. This maintains the middle canopy frame 5 at multiple predetermined angles (positions). In other words, a restricting force (rotation restricting force) is generated in the second pivot shaft 72 that restricts rotation of the front canopy frame 4. If the middle canopy frame 5 is pushed with a force stronger than this rotation restricting force, the engagement between the second engaged portion 57 and the second engaged portion 47 is released, for example by elastic deformation, and the middle canopy frame 5 rotates relative to the other canopy frames 4 and 6. The rotation restricting force of the second pivot shaft 72 may be set to be smaller than the rotation restricting force of the first pivot shaft 71.

[0046] The base portion 50 of the central frame is provided with a fitting hole 55 that opens in the direction in which the base portion 50 extends (diagonally upward). The fitting hole 55 is for fitting and holding the end of the central frame body 59 (Figure 4).

[0047] The middle canopy frame body 59, like the front canopy frame body 49, is made of, for example, synthetic resin and has a certain degree of flexibility. The middle canopy frame body 59 is preferably, for example, roughly rectangular in cross-sectional view. As shown in Figures 4 and 7, the width and height dimensions of the middle canopy frame body 59 are smaller than those of the front canopy frame body 49. Furthermore, the middle canopy frame 5 is located inward from the front canopy frame 4 on both sides of the seat area.

[0048] As shown in Figure 5, the rear canopy frame 6 is rotatably connected to the inside of the armrest 15 via a third pivot axis 73. As shown in Figures 4 and 7, the rear canopy frame 6 includes a rear canopy frame base 60 and an inverted U-shaped rear canopy frame body 69.

[0049] As shown in Figure 7, the rear canopy base 60 holds both ends of the rear canopy body 69. The rear canopy base 60 is located inward of the front canopy 4 and middle canopy 5 on both sides of the seat. As shown in Figures 4 and 5, the rear canopy base 60 has a curved shape that extends rearward from the third pivot axis 73 and then rises upward. Specifically, the rear canopy base 60 has an L-shape that is inverted left to right in a side view, and includes a first part 61 that extends in the front-to-back direction and a second part 62 that extends upward from the rear end of the first part 61. The angle between the first part 61 and the second part 62 is approximately 90 degrees. This, together with the front canopy 4, allows for a longer overall length of the canopy, enabling it to cover a wider area. Furthermore, it can prevent infants from getting their fingers caught.

[0050] As shown in Figure 2, the front end of the first portion 61 is provided with a cylindrical portion 61a that protrudes toward the armrest 15, and a gear-shaped third engaging portion 64 provided at the tip of the cylindrical portion 61a. As shown in Figure 3, a through hole 63 that penetrates axially is provided inside the cylindrical portion 61a. The first pin 81 described above passes through the through hole 63. As a result, the first pin 81 also serves as the third pivot axis 73, and the rear canopy frame 6 is rotatably mounted relative to the armrest 15.

[0051] The third engaging portion 64 engages with a third engaged portion (not shown) provided on the inside of the through hole 15a of the armrest 15 (opposite direction of arrow A). This maintains the rear canopy frame 6 at multiple predetermined angles (positions). In other words, a restricting force (rotation restricting force) is generated at the third pivot axis 73 that restricts rotation relative to the vehicle frame 10. If the rear canopy frame 6 is pushed with a force stronger than this rotation restricting force, the engagement between the third engaging portion 64 and the third engaged portion on the inside of the armrest 15 is released, for example by elastic deformation, and the rear canopy frame 6 rotates relative to the vehicle frame 10.

[0052] Furthermore, as shown in Figure 7, the armrest 15 and the armrest support member 17 are connected via a fourth pivot shaft 74. The fourth pivot shaft 74 is rotatably connected by a first pin 81. In other words, in this embodiment, the first pivot shaft 71, the third pivot shaft 73, and the fourth pivot shaft 74 are located coaxially. Also, the rotational restricting force of the first pivot shaft 71 of the front canopy frame 4 and the rotational restricting force of the third pivot shaft 73 of the rear canopy frame 6 are approximately the same. On the other hand, the rotational restricting force of the third pivot shaft 73 is set to be greater than the rotational restricting force of the second pivot shaft 72. As a result, the middle canopy frame 5 rotates with less force than the rear canopy frame 6.

[0053] The second part 62 includes a mating hole 65 that extends in the direction in which the second part 62 extends (diagonally rearward). The mating hole 65 is for fitting and holding the end of the rear canopy frame body 69 (Figure 4).

[0054] The rear canopy frame body 69, like the front canopy frame body 49 and the middle canopy frame body 59, is made of, for example, synthetic resin and has a certain degree of flexibility. The front canopy frame body 49 is preferably, for example, roughly rectangular in cross-section. As shown in Figures 4 and 7, the width and height dimensions of the rear canopy frame body 69 are smaller than those of the front canopy frame body 49 and the middle canopy frame body 59. In other words, the width and height dimensions decrease in the order of front canopy frame body 49, middle canopy frame body 59, and rear canopy frame body 69. This allows the front canopy frame 4, middle canopy frame 5, and rear canopy frame 6 to be aligned in the width direction when fully closed, so that the canopy 3 can be folded compactly.

[0055] Next, with reference to Figure 4, the canvas 9 and auxiliary canvas frames 95, 96, 97, and 98 will be described.

[0056] The canvas 9 is stretched between the front canvas frame 4, the middle canvas frame 5, and the rear canvas frame 6, forming a dome-shaped three-dimensional structure. The canvas 9 is typically a two-layer structure, with the front canvas frame 4, the middle canvas frame 5, and the rear canvas frame 6 positioned between them. The canvas 9 also includes a front canvas 91 stretched between the front canvas frame 4 and the middle canvas frame 5, a middle canvas 92 stretched between the middle canvas frame 5 and the rear canvas frame 6, and a rear canvas 93 covering the rear of the rear canvas frame 6. The area of ​​the canvas decreases in the order of front canvas 91, middle canvas 92, and rear canvas 93.

[0057] Between the front canopy frame 4, the middle canopy frame 5, and the rear canopy frame 6, there are several auxiliary canopy frames 95, 96, 97, and 98 that are not connected to the first to third pivot axes 71, 72, and 73. The auxiliary canopy frames 95 and 96 are provided in the area of ​​the front canopy fabric 91, and the auxiliary canopy frames 97 and 98 are provided in the area of ​​the middle canopy fabric 92. No auxiliary canopy frames are provided in the area of ​​the rear canopy fabric 93. The auxiliary canopy frames 95 and 96 are made of synthetic resin, for example, and have a certain degree of flexibility, but less flexible than the canopy frames 4, 5, and 6. The auxiliary canopy frames 95, 96, 97, and 98 are substantially the same shape and are elongated in a straight line, but because they are sandwiched between the outer and inner fabrics of the canopy fabric 9 as described above, they have an inverted U-shape similar to the canopy frames 4, 5, and 6.

[0058] (Regarding the folding and unfolding of the canopy) The folding and unfolding operations of the canopy 3 will be explained with reference to Figures 8 to 10. In Figures 8 and 10, the canopy fabric 9 is shown by a dashed line. Figure 9 shows the front canopy frame base 40, the middle canopy frame base 50, and the rear canopy frame base 60 of the canopy 3.

[0059] First, let's explain how to fold the canopy 3. Figures 8(A) and 9(A) show the canopy 3 in its fully open state. When the canopy 3 is fully open, the front canopy frame 4 extends forward and parallel to the armrest 15. The middle canopy frame 5 extends forward and diagonally upward. The rear canopy frame 6 extends rearward and diagonally upward. When the canopy 3 is fully open, it completely covers the space above the seat. The rear canopy frame 6 can rotate further back than this position, but it is not necessary to rotate the rear canopy frame 6 further back than this position when folding and opening / closing the canopy.

[0060] When the front canopy frame 4 is grasped and rotated backward from the state shown in Figures 8(A) and 9(A), the engagement between the first engaging portion 44 (Figure 2) of the first pivot axis 71 and the first engaged portion on the outside of the armrest 15 is released by elastic deformation, and the front canopy frame 4 and the middle canopy frame 5 move backward while maintaining the same angle, resulting in the state shown in Figures 8(B) and 9(B). The angle between the front canopy frame 4 and the middle canopy frame 5 remains constant, while only the angle between the middle canopy frame 5 and the rear canopy frame 6 decreases. As a result, the middle canopy fabric 92 that is stretched between the middle canopy frame 5 and the rear canopy frame 6 is folded, but the front canopy fabric 91 that is stretched between the front canopy frame 4 and the middle canopy frame 5 remains taut, so even if the angle of the canopy 3 is reduced, the aesthetic appearance of the canopy can be maintained.

[0061] From the state shown in Figures 8(B) and 9(B), if the front canopy frame 4 is grasped and rotated further backward, the folded middle canopy fabric 92 resists the rotation of the second pivot shaft 72, and the engagement between the second engaging portion 47 (Figure 2) of the front canopy frame 4 and the second engaged portion 57 (Figure 3) of the middle canopy frame 5 of the second pivot shaft 72 is released, for example by elastic deformation, causing the front canopy frame 4 to rotate backward, and the angle between the front canopy frame 4 and the middle canopy frame 5 decreases, as shown in Figures 8(C) and 9(C). At this time, since the rotation restricting force of the third pivot shaft 73 is greater than the rotation restricting force of the second pivot shaft 72, the third pivot shaft 73 does not rotate, and only the second pivot shaft 72 rotates. By pushing the front canopy frame 4 further backward, the first pivot shaft 71 rotates, and the angle between the front canopy frame 4 and the middle canopy frame 5 can be reduced.

[0062] Furthermore, by grasping the front canopy rib 4 and rotating it further backward, as shown in Figures 8(D) and 9(D), the front canopy rib 4, the middle canopy rib 5, and the rear canopy rib 6 align in the width direction, and only the front canopy rib 4 is visible in a side view. This allows the canopy 3 to be folded compactly.

[0063] Next, the deployment operation of the canopy 3 will be explained with reference to Figure 10. Figure 10(A) shows the canopy 3 in a fully closed state. From this state, if the front canopy frame 4 is grasped by hand and rotated forward, the engagement between the first engaging portion 44 (Figure 2) of the first pivot axis 71 and the first engaged portion on the outside of the armrest 15 is released, for example, by elastic deformation, and the front canopy frame 4 and the middle canopy frame 5 remain aligned in the width direction, displacing through the state shown in Figure 10(B) to the state shown in Figure 10(C). When the middle canopy fabric 92, which is stretched between the middle canopy frame 5 and the rear canopy frame 5, becomes taut, the rotation of the second pivot axis 72 (Figure 5) of the middle canopy frame 5 stops.

[0064] As the front canopy frame 4 is further rotated forward, the front canopy frame 4 and the middle canopy frame 5 rotate forward via the first rotation axis 71, while the angle between the rear canopy frame 6 and the middle canopy frame 5 remains fixed. This allows the canopy 3 to be deployed and all the canopy fabric 9 to be stretched taut.

[0065] In this embodiment, the canopy 3 has a front canopy frame 4 connected to the vehicle frame 10 via a first pivot shaft 71 with a rotation-restricting force, and a middle canopy frame 5 attached to the front canopy frame 4 via a second pivot shaft 72 located at a different position from the first pivot shaft 71, also with a rotation-restricting force. As a result, the canopy 3 can be folded and unfolded while maintaining the angle between the front canopy frame 4 and the middle canopy frame 5. Therefore, the canopy 3 can be folded and unfolded with one hand, making it easy to open and close. Furthermore, since the canopy 3 can be folded and unfolded while maintaining the angle between the front canopy frame 4 and the middle canopy frame 5, the aesthetic appearance of the canopy 3 can be improved.

[0066] Furthermore, since the rear canopy frame 6 is rotatably connected to the vehicle frame 10 with a rotational restricting force via a third pivot shaft 73 located at a different position from the second pivot shaft 72, even if the area of ​​the canopy 3 is increased, it can be easily opened and closed, and the aesthetic appearance of the canopy 3 can be improved.

[0067] The rotational restricting force of the third drive shaft 73 is set to be greater than that of the second drive shaft 72. This allows the angle between the middle canopy frame 5 and the rear canopy frame 6 to be reduced while maintaining the angle between the front canopy frame 4 and the middle canopy frame 5. As a result, even when the canopy 3 is half-open, the front canopy fabric 91 can remain taut, improving the aesthetic appearance of the canopy. Furthermore, this operation can be performed with one hand, resulting in improved operability.

[0068] The width and height dimensions of the front canopy frame 4, middle canopy frame 5, and rear canopy frame 6 decrease in the order of front canopy frame 4, middle canopy frame 5, and rear canopy frame 6. Therefore, when the canopy 3 is closed, the front canopy frame 4, middle canopy frame 5, and rear canopy frame 6 can be aligned axially. This allows the canopy 3 to be folded compactly.

[0069] In this embodiment, the canopy 3 was equipped with three bones: a front canopy bone 4, a middle canopy bone 5, and a rear canopy bone 6. However, it is sufficient to have at least two bones: the front canopy bone 4 and the middle canopy bone 5. Also, while one example was shown in which the middle canopy bone 5 is connected to the bent portion of the front canopy bone 4, it may also be connected to, for example, the front end of the front canopy bone 4, and the connection point of the front canopy bone 4 is not limited.

[0070] Furthermore, although the front canopy frame 4 and rear canopy frame 6 in this embodiment are connected to the armrest 15, the connecting member does not have to be the armrest 15; any member of the vehicle frame 10 may be used. In addition, although the front canopy frame 4 is attached to the outside of the armrest 15 and the rear canopy frame 6 is attached to the inside of the armrest 15, the attachment locations are not limited.

[0071] Furthermore, while one example of the canopy 3 in this embodiment was shown in which the first pivot shaft 71, the third pivot shaft 73, and the fourth pivot shaft 74 are provided coaxially, the structure is not limited to this. For example, the first pivot shaft 71 and the fourth pivot shaft 74 may be provided coaxially, and the third pivot shaft 73 may be provided at a different position, or all of them may be provided at different positions.

[0072] Furthermore, although this embodiment describes the front canopy frame 4, middle canopy frame 5, and rear canopy frame 6 as decreasing in width and height in that order, this is not limiting, and they may all be the same size, or for example, the middle canopy frame 5 may be the largest, followed by the front canopy frame 4 and then the rear canopy frame 6, in decreasing order of their dimensions.

[0073] Furthermore, although the anterior hood bone 4 and posterior hood bone 6 were described as having a curved shape, they may also have a general straight shape.

[0074] Furthermore, although this embodiment describes the stroller 1 as a foldable stroller, it may also be a non-foldable stroller. In this case, the lower end of the armrest support member 17 only needs to be connected to any part of the body frame 10, for example, it may be connected to the rear leg 13. In addition, although the push bar 20 of the stroller 1 is described as being reversible, it may also be fixed in either the rear-facing or rear-facing position.

[0075] Although embodiments of this invention have been described above with reference to the drawings, this invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as this invention, or within the equivalent scope. [Explanation of Symbols]

[0076] 1 Stroller, 3 Canopy, 4 Front canopy frame, 5 Middle canopy frame, 6 Rear canopy frame, 10 Body frame, 15 Armrest, 17 Armrest support member, 30 Canopy, 71 First drive axle, 72 Second drive axle, 73 Third drive axle, 74 Fourth drive axle.

Claims

1. The vehicle frame and A front canvas frame is connected to the vehicle body frame via a first pivot shaft so as to be rotatable with a rotational restricting force, The structure includes a middle canopy frame that is rotatably connected to the front canopy frame with a rotational restricting force via a second pivot axis located at a different position from the first pivot axis, The aforementioned front flank has a curved shape that extends upward from the first pivot axis and then extends forward. The aforementioned second pivot shaft is located in the bent section of the stroller.

2. A vehicle body frame, A front canvas frame is connected to the vehicle body frame via a first pivot shaft so as to be rotatable with a rotational restricting force, A middle canopy frame is connected to the front canopy frame via a second pivot axis located at a different position from the first pivot axis, so as to be rotatable with a rotation-restricting force, It comprises a rear canopy frame that is rotatably connected to the vehicle body frame with a rotational restricting force via a third pivot shaft located at a different position from the second pivot shaft, The first pivot shaft and the third pivot shaft are located coaxially in a stroller.

3. A vehicle frame and A front canvas frame is connected to the vehicle body frame via a first pivot shaft so as to be rotatable with a rotational restricting force, A middle canopy frame is connected to the front canopy frame via a second pivot axis located at a different position from the first pivot axis, so as to be rotatable with a rotation-restricting force, It comprises a rear canopy frame that is rotatably connected to the vehicle body frame with a rotational restricting force via a third pivot shaft located at a different position from the second pivot shaft, The vehicle frame includes a pair of armrests provided at both ends in the width direction of the seat surface, a pair of armrest support members whose upper ends are connected to the rear ends of the pair of armrests, and a fourth pivot shaft connecting the armrests and the armrest support members. The fourth pivot axis is located coaxially with the first and third pivot axes of the stroller.

4. A vehicle body frame, A front canvas frame is connected to the vehicle body frame via a first pivot shaft so as to be rotatable with a rotational restricting force, A middle canopy frame is connected to the front canopy frame via a second pivot axis located at a different position from the first pivot axis, so as to be rotatable with a rotation-restricting force, It comprises a rear canopy frame that is rotatably connected to the vehicle body frame with a rotational restricting force via a third pivot shaft located at a different position from the second pivot shaft, The rear canopy frame of the stroller extends rearward from the third pivot axis and has a curved shape that then rises upward.

5. A vehicle body frame, A front canvas frame is connected to the vehicle body frame via a first pivot shaft so as to be rotatable with a rotational restricting force, A middle canopy frame is connected to the front canopy frame via a second pivot axis located at a different position from the first pivot axis, so as to be rotatable with a rotation-restricting force, It comprises a rear canopy frame that is rotatably connected to the vehicle body frame with a rotational restricting force via a third pivot shaft located at a different position from the second pivot shaft, The aforementioned front flank bone is located on both sides more lateral than the aforementioned middle flank bone. A stroller in which the rear canopy frame is located on both sides inward from the middle canopy frame.

6. The stroller according to claim 1, further comprising a rear canopy frame rotatably connected to the vehicle frame with a rotational restricting force via a third pivot shaft provided at a different position from the second pivot shaft.

7. The stroller according to any one of claims 2 to 5, wherein the rear canopy frame extends rearward from the third pivot axis and then has a curved shape that rises upward.

8. The stroller according to claim 5, wherein the front canopy frame, the middle canopy frame, and the rear canopy frame have an inverted U-shape, and their width and height dimensions decrease in the order of the front canopy frame, the middle canopy frame, and the rear canopy frame.

Images