JP7362133B2 - child carrier for bicycle - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies Website address: https://global. yamaha-motor. com/jp/news/2020/1014/pas_un. html Website publication date: October 14, 2020

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle child seat for allowing children to ride together on a bicycle.

A cage-like child seat for a bicycle that is attached to the handlebar of a bicycle and is used for carrying a child along, in which a cover part is provided on the front part of the seat body on which the child is seated facing forward so that the cover part can be rotated forward and downward. is known (for example, Patent Documents 1 and 2).

The child bicycle seats of Patent Documents 1 and 2 are configured so that the inner side of the front wall of the cover member becomes a child's leg rest by rotating the cover member forward and downward and opening it to a predetermined position. Furthermore, a handle (hereinafter referred to as a "grip bar") for a child seated on the seat body to grasp is horizontally installed between the side walls of the seat body. Furthermore, a locking mechanism that can prevent rotation of the cover member is provided at the bottom of the seat body, and by manually operating the locking mechanism to unlock the cover member, the cover member can be moved to a predetermined position. It is now possible to open it.

When using such a child bicycle seat, for example, the user (bicycle driver) first stands on the front side of the bicycle and unlocks the locking mechanism provided at the inner bottom of the seat body. , rotate the cover member forward and downward to open it to a predetermined position. Next, the user slides the picked-up child up into the gap between the backrest portion of the seat body and the grip bar starting from the tips of the legs, and seats the child on the seat portion of the seat body. In this case, the grip bar is placed near the child's abdomen. In this state, the seat belt provided on the seat body is attached to the child's torso, and the child is made to grip the grip bar. This allows the child to be seated stably.

On the other hand, when removing a child from a child bicycle seat, for example, the user first stands at the front of the bicycle and removes the seat belt attached to the child. In this state, the user picks up the child seated on the seat by pulling the child out of the gap between the backrest and the grip bar, and removes the child from the child bicycle seat. Thereafter, the user rotates the cover member to the original closed position and returns the locking mechanism to the locked state.

JP2006-182199 JP2011-88536

However, the child bicycle seats of Patent Documents 1 and 2 are formed in the shape of a deep cage as a whole, and a grip bar is horizontally fixed to the front position near the abdomen of the child seated on the seat. Therefore, when loading and unloading a child, the legs tend to get caught on the grip bar, making it difficult to load and unload the child smoothly. Furthermore, since the locking mechanism of the cover member is provided at the inner bottom of the seat body, the locking mechanism cannot be operated manually, especially when carrying a child or luggage. Also, it was not easy to open and close the cover member.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to reduce the burden on the user when loading and unloading a child on a child-riding bicycle.

In order to solve the above problems, the bicycle child carrier of the present invention takes the following technical measures.

The present invention provides a seat body that is fixed to a bicycle and seats a child facing forward; a cover member that is provided at the front of the seat body and is connected to the seat body so as to be rotatable forward and downward; a grip bar that is provided at the rear of the cover member and serves as a grip for a child seated on the seat body; and a grip bar that is rotatably provided at the front of the cover member and is used by a user when rotating the cover member. When the cover member is in a predetermined closed position covering the seat body from the front, the opening/closing handle becomes a gripping portion, and the opening/closing handle is locked to prevent rotation of the cover member, while the opening/closing handle is pulled. and a locking mechanism section that enters an unlocked state when the cover member is rotated forward and allows rotation of the cover member , the cover member having a latch support frame, and the lock mechanism section that allows the cover member to rotate forward. The mechanism part is provided in the latch support frame so as to be retractable in and out of the latch support frame, and the latch part is retracted into the latch support frame in conjunction with a pulling operation of the opening/closing handle, and the mechanism part is provided in the seat body, and the mechanism part is provided in the seat body, and the mechanism part is provided in the seat body so that the cover member and a latch receiving part that holds the latch part in a non-removed state when the latch part is in the latch position, the latch part has a latch hook, and the latch support frame has a latch support frame when the latch part is retracted. has a pawl receiving hole into which the latch pawl is inserted and prevents movement of the latch portion in the protruding direction .

The present invention also provides a seat body that is fixed to a bicycle and seats a child facing forward, and a cover member that is provided at the front of the seat body and is rotatably connected to the seat body forward and downward. , a grip bar provided at the rear of the cover member and serving as a grip for a child seated on the seat body; and a grip bar provided at the front of the cover member and used as a grip when rotating the cover member. When the opening/closing handle and the cover member are in a predetermined closed position that covers the seat body from the front, the locking state is achieved, and the rotation of the cover member is prevented, while the opening/closing handle is unlocked by pulling the opening/closing handle. a locking mechanism that allows rotation of the cover member, one end of which is rotatably connected to the bottom of the seat body, and the other end of which is rotatably connected to the bottom of the cover member. a first link member; and a second link member, one end of which is rotatably connected to a side of the seat body, and the other end of which is rotatably connected to a side of the cover member; The cover member is connected and supported to the seat body via the first link member and the second link member.

According to the child bicycle seat of the present invention, when the user grasps the opening/closing handle provided at the front of the cover member and pulls it, the locking mechanism becomes unlocked and the user moves the cover member forward and downward. The cover member can be easily opened even if the user is carrying a child or luggage. Furthermore, by opening the cover member as described above, the grip bar moves forward and downward together with the cover member, that is, in a direction away from the backrest of the seat body, so when loading or unloading a child, Children's legs are less likely to get caught in the grip bar. This greatly reduces the burden on the user.

FIG. 2 is a front perspective view of a bicycle child seat according to an embodiment. FIG. 2 is a side view of the bicycle child seat according to the embodiment. FIG. 3 is a side cross-sectional view of the child bicycle seat with the cover member closed. It is a side sectional view of a lock mechanism part. FIG. 3 is a partially exploded perspective view of the opening/closing handle and the leg rest area. FIG. 3 is a side cross-sectional view of the child bicycle seat with the grip bar removed from the grip bar engaging portion. FIG. 3 is a side cross-sectional view of the child bicycle seat with the cover member open.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a bicycle child seat according to an embodiment of the present invention will be described based on the drawings. Note that the embodiment described below is an example of embodying the present invention, and the configuration of the present invention is not limited to the specific example.

As shown in FIGS. 1 to 3, the bicycle child seat 1 of this embodiment includes a seat body 2 having a backrest portion 21, a seat portion 22, and a leg rest portion 23, and a seat body 2 provided at the front portion of the seat body 2. The outer shell is constituted by a cover member (hereinafter referred to as "guard") 3 which is connected to the seat body 2 so as to be rotatable in the front and downward direction, and is formed into a deep cage shape. 2 is used by fixing it to the handlebar of a bicycle with a bolt or the like. The child to ride with the child is seated facing forward on the seat portion 22 of the seat body 2.

In the description of this embodiment, when the bicycle is attached in the proper direction to the handlebar, the front and back direction of the bicycle is the front and back direction of the child bicycle seat 1, and the left and right direction of the bicycle is the child bicycle seat 1. 1 and the vertical direction of the bicycle are defined as the vertical direction of the bicycle child seat 1 (see FIGS. 1 and 2).

The backrest part 21 is formed to stand up from the rear part of the seat part 22 slightly diagonally rearward. Side walls (hereinafter referred to as "seat side walls") 24 are formed on the left and right sides of the backrest part 21 so as to extend from the backrest part 21 to the left and right sides of the seat part 22. That is, at the rear and left and right side positions of the seat part 22, substantially U-shaped wall plates (the backrest part 21 and the seat side walls 24) are provided so as to surround the upper space of the seat part 22 from the rear and left and right sides. Erect formation. Therefore, the torso of the child seated on the seat portion 22 is covered by the backrest portion 21 and the seat side walls 24 from the rear and left and right sides.

A substantially U-shaped headrest 41 that extends to the inside of the seat side wall 24 is provided on the inside upper part of the backrest portion 21 . A seat belt 42 for fixing and holding the child's torso to the seat body 2 is connected to the inner lower part of the backrest part 21. The seat belt 42 is used by fastening and fixing a clasp at the tip (not shown) to a belt fastening part 43 provided upright in the front part of the seat part 22.

The leg rest part 23 constitutes the front part of the seat body 2, and is provided in front of the seat part 22 and at a lower position than the seat part 22 with a step. Therefore, a child seated on the seat portion 22 can be placed on the leg rest portion 23 with the legs slightly bent.

In front of the seat side wall 24 of the seat body 2 and above the left and right sides of the leg rest 23, the legs are placed in front of the seat side wall 24 and the side wall of the leg rest 23 (hereinafter referred to as "leg rest") when loading or unloading a child. A substantially U-shaped opening 26 (hereinafter referred to as the "side wall opening") 26 is provided to prevent it from getting caught on the side wall 25 (hereinafter referred to as the "side wall opening").

At a position near the front of the upper edge of the seat side wall 24, there is a notch (hereinafter referred to as a "grip bar engagement") for engaging and holding the grip bar 5 provided on the guard 3 when the guard 3 is in the basic closed position. ) 27 is formed.

The grip bar engaging portion 27 extends downward from the upper edge of the seat side wall 24 and is bent forward into a substantially L-shape. The grip bar 5 is fitted into the front end 270 of the portion 27. Therefore, even if the opening/closing handle 6 is pulled forward and upward of the guard 3 in this state, the grip bar 5 remains engaged with the grip bar engaging portion 27 and does not move in the direction of the pulling operation.

The guard 3 is a plate body bent into a substantially U-shape, and is arranged at a position in front of the leg rest 23 so as to surround the upper space of the leg rest 23 from the front and left and right sides in the closed position. . Therefore, the legs of the child placed on the leg rest 23 are covered by the guard 3 from the front and left and right sides.

A rod-shaped grip bar 5 is provided at the rear of the guard 3 and serves as a grip for a child seated on the seat body 2. The grip bar 5 is formed into a substantially U-shape with both ends bent downward, and the both ends are located near the rear of the left and right side walls (hereinafter referred to as "guard side walls") 34 of the guard 3, respectively. It is connected and fixed in the upper position. That is, the grip bar 5 is placed horizontally between the guard side walls 34.

The guard 3 includes a generally flat link plate 11 as a first link member connected to the bottom of the leg rest 23, and two approximately left and right link plates as second link members connected to the side of the leg rest 23. It is connected and supported to the front part of the seat body 2 via an L-shaped link arm 12.

A rear end (hereinafter referred to as "rear end") 11A of the link plate 11 is connected and supported to a position near the rear of the bottom of the leg rest 23 so as to be movable up and down. The rear end portion 11A is provided with a protrusion 110 that protrudes in the circumferential direction, and when the link plate 11 is rotated forward and downward, the protrusion 110 moves to the wall plate 230 that is erected at the bottom of the leg rest 23. By contacting the link plate 11, the link plate 11 is prevented from rotating further in the same direction from that position. That is, the link plate 11 is configured to be able to rotate forward and downward by a predetermined angle (for example, about 60 degrees) from a position along the bottom surface of the leg rest 23 around the rear end 11A. .

A front end (hereinafter referred to as "front end") 11B of the link plate 11 is connected to a position near the front of the bottom of the guard side wall 34 so as to be vertically movable. That is, the link plate 11 pivotally supports the guard 3 at the front end portion 11B so as to be movable up and down.

The link arm 12 has a rear end (hereinafter referred to as the "rear end") 12A connected to a rear position of the leg rest side wall 25 so as to be vertically movable, and a front end (hereinafter referred to as the "front end") 12A. 12B is vertically movably connected to the guard side wall 34 at a position slightly toward the rear in the center between the top and bottom of the guard side wall 34. That is, the link arm 12 pivotally supports the guard 3 at the front end portion 11B so as to be movable up and down.

A forwardly curved arc-shaped slit 13 is provided at a slightly rearward position in the center between the upper and lower sides of the guard side wall 34. The slit 13 extends upward from below the guard side wall 34, and the front end 12B of the link arm 12 is movably connected to the slit 13 within the range in which it is formed.

In this way, the guard 3 is connected and supported to the seat body 2 by the two link members 11 and 12 disposed at different heights above and below, so that the guard 3 extends in an arc shape around a predetermined point on the seat body 2. Not only can it be rotated, but it can also be moved up and down approximately parallel to the seat body 2 within a predetermined range, or it can be rotated at different angles.

The front part of the guard 3 is provided with an opening/closing handle 6 that serves as a grip for the user when rotating (opening and closing) the guard 3 as described above. The opening/closing handle 6 is formed into a substantially rod shape that extends along the front wall 31 of the guard 3 (hereinafter referred to as "guard front wall") in the vertical direction thereof, that is, in the same direction as the rotation direction.

A handle support frame 60 to which the opening/closing handle 6 is attached is provided at approximately the center between the upper and lower sides and the left and right sides of the guard front wall 31 . It is rotatably connected and supported.

There is a space between the lower end 62 of the opening/closing handle 6 and the front part of the leg rest 23 that is locked when the guard 3 is in the closed position, preventing rotation of the guard 3 or preventing the opening/closing handle 6 from moving. A locking mechanism section 7 consisting of a latch section 71 and a latch receiving section 72 is provided, which is brought into an unlocked state by a pulling operation and allows rotation of the guard 3.

As shown in FIGS. 4 and 5, the latch portion 71 is formed into a substantially rectangular shaft shape and protrudes downward from the rear surface portion 63 of the handle support frame 60, that is, toward the leg rest portion 23 side. ing. A substantially rectangular cylindrical latch support frame 64 is formed on the rear surface part 63 of the handle support frame 60, and the latch part 71 can move in and out of the latch support frame 64 within a predetermined range from its tip opening. It is inserted through and supported.

A base end 71A of the latch portion 71 is rotatably connected to the lower end 62 of the opening/closing handle 6. Therefore, when the opening/closing handle 6 is pulled and its lower end 62 moves forward of the guard 3 using the upper end 61 as a fulcrum, the latch part 71 is pulled into the latch support frame 64 and buried. do.

A latch hook 73 is provided on the side surface of the latch portion 71 and is supported in a cantilever shape by the peripheral wall of the latch portion 71 and whose tip side (free end side) protrudes outward from the peripheral wall of the latch portion 71. It is being On the other hand, when the latch part 71 is drawn inside the latch support frame 64 as described above, the latch latching pawl 73 is fitted into the side part of the latch support frame 64, and is inserted in the direction in which the latch part 71 protrudes. A claw receiving hole 74 is provided to prevent the movement of the claw.

An extrusion spring 75 is provided inside the latch portion 71 to press and bias the latch portion 71 in the projecting direction, and when the latch hook 73 is removed from the nail receiving hole 74, the latch portion 71 is pressed toward its tip side, causing it to protrude outside of the latch support frame 64. Further, when the latch portion 71 is pushed out of the latch support frame 64 by the pressing force of the push spring 75 as described above, the lower end portion 62 of the opening/closing handle 6 is moved to its original position before being pulled. Move to.

The latch receiving part 72 is formed in a substantially rectangular cylindrical shape that opens upward, and is erected at the front part of the leg rest part 23 . The latch portion 71 is inserted into the upper end opening (hereinafter referred to as “latch insertion hole”) 72A of the latch receiving portion 72 when the guard 3 is in the closed position.

When the latch part 71 is inserted into the latch insertion hole 72A, the latch part 71 is inserted into the claw receiving hole 74 of the latch part 71 on the inner side of the upper edge of the latch insertion hole 72A. A guard latching claw 76 is formed in a protruding manner to hold the guard in a state where it does not come off.

As described above, when the guard 3 is in the closed position, the guard latching claw 76 of the latch receiving part 72 provided on the leg rest part 23 is fitted into the claw receiving hole 74 of the latch support frame 64, and the latch The latch portion 71 is held in a fixed state relative to the receiving portion 72. As a result, the guard 3 enters a locked state in which rotation is prevented (see FIG. 3). Further, at this time, the grip bar 5 is fitted and held in the front end portion 270 of the grip bar engaging portion 27. That is, the guard 3 is in a state where it is prevented from rotating with respect to the seat body 2 at two locations: the grip bar engaging portion 27 and the latch receiving portion 72. The grip bar engaging portion 27 is provided above the front edge of the seat 22 and at a height ranging from the chest to the abdomen of the child seated on the seat 22. Therefore, when the guard 3 is in the closed position, the grip bar 5 is placed near the front near the chest and abdomen of the child seated on the seat 22.

Further, when the opening/closing handle 6 is pulled and the latch portion 71 is pulled into the latch support frame 64 in the locked state, the latch hook 73 of the latch portion 71 is inserted into the latch receiving hole 74 of the latch support frame 64. , and the guard latching claw 76 is pushed out from the claw receiving hole 74. As a result, the state in which the latch portion 71 is prevented from coming off from the latch receiving portion 72 is released, and the guard 3 enters the unlocked state in which it can rotate. Therefore, by moving the guard 3 rearward and upward in this state, the grip bar 5 can be removed from the grip bar engaging portion 27 (see FIG. 6).

Further, if the opening/closing handle 6 is pulled down forward and downward and the guard 3 is rotated to a predetermined open position in the forward and downward direction, the grip bar 5 is also moved away from the backrest portion 21 by a large amount in the forward and downward direction. . That is, the guard 3 is opened with a wide gap between the grip bar 5 and the backrest 21 (see FIG. 7). When the guard 3 is in the open position, the grip bar 5 is disposed above the front of the leg rest 23, that is, above the legs of the child placed on the leg rest 23.

Further, when the guard 3 is returned from the open state to the closed position as described above and the latch portion 71 is inserted into the latch receiving portion 72, the guard latching claw 76 of the latch receiving portion 72 supports the latch. It is inserted into the claw receiving hole 74 of the frame 64, and the latch hooking claw 73 is pushed out from the claw receiving hole 74. As a result, the latch portion 71 is held in the latch receiving portion 72 in a non-removed state, and the guard 3 is again in the locked state.

As described above, according to the bicycle child carrier 1 of the present embodiment, the user (bicycle driver) can grasp the opening/closing handle 6 provided at the front part of the guard 3 and pull the locking mechanism. Since the part 7 is unlocked and the guard 3 can be rotated to the lower front opening position, it is easy to open the guard 3 even if you are carrying a child or luggage. can be opened. This greatly reduces the burden on the user when loading and unloading children.

Moreover, in this case, when the guard 3 is opened to the predetermined open position as described above, the grip bar 5 also moves forward and downward together with the guard 3, and is separated from the backrest part 21 by a large distance, so that it is difficult to carry a child. The child's legs are less likely to get caught on the grip bar 5 when the child is taken down. This further reduces the burden on the user.

Further, in this device, when the guard 3 is in the closed position, the grip bar 5 is engaged and held at the front end 270 of the grip bar engaging portion 27, and when the opening/closing handle 6 is pulled, the locking mechanism portion 7 is opened. Even in the unlocked state, the guard 3 can be held in the position where it is engaged with the grip bar engagement part 27. Therefore, usability and safety are greatly improved.

Moreover, in this case, the guard 3 has a higher degree of freedom of movement than a case in which the guard 3 is rotatably connected to the seat body 2 on one axis only, and is therefore more convenient to use. Furthermore, since the guard 3 has a high degree of freedom of movement, the gap between the grip bar 5 and the backrest 21 can be opened wider, which further reduces the burden on the user when loading and unloading a child. Ru.

In the above embodiment, the opening/closing handle 6 has an upper end 61 rotatably connected and supported to the handle support frame 60 and a locking mechanism 7 provided on the lower end 62 side. The lower end 62 may be rotatably connected and supported to the handle support frame 60, and the lock mechanism 7 may be provided on the upper end 61 side, or the upper end 61 and the lower end 62 may both be connected to the handle support frame 60. 60 so as to be movable up and down, and the locking mechanism 7 may be provided at one end (for example, the lower end 62) or both ends.

Furthermore, in the above embodiment, the opening/closing handle 6 has been described as having a substantially rod shape extending in the vertical direction along the guard front wall 31; It may be formed into a substantially spherical shape, a disk shape, a rectangular plate shape, etc., as long as the user can appropriately hold it and the guard 3 can be smoothly rotated. Not done.

1 Child bicycle seat 2 Seat body 3 Guard (cover member)
5 Grip bar 6 Opening/closing handle 7 Lock mechanism section 11 Link plate (first link member)
12 Link arm (second link member)
21 Backrest portion 22 Seat portion 23 Leg rest portion 24 Seat side wall 27 Grip bar engaging portion 71 Latch portion 72 Latch receiving portion 73 Latch retaining claw 74 Nail receiving portion 76 Guard retaining claw

Claims (2)

a seat body that is fixed to a bicycle and seats a child facing forward;
a cover member provided at the front of the seat body and rotatably connected to the seat body in a downward and forward direction;
a grip bar provided at the rear of the cover member and serving as a grip for a child seated on the seat body;
an opening/closing handle that is rotatably provided at the front of the cover member and serves as a grip for the user when rotating the cover member;
When the cover member is in a predetermined closed position covering the seat body from the front, it is locked and prevents the cover member from rotating, while the opening/closing handle is pulled and the cover member is rotated forward. a locking mechanism section that becomes an unlocked state when the cover member is moved and allows rotation of the cover member ;
The cover member has a latch support frame,
The locking mechanism part is provided in the latch support frame so as to be retractable in the latch support frame, and the latch part is retracted into the latch support frame in conjunction with the pulling operation of the opening/closing handle, and the lock mechanism part is provided in the seat body, and the cover member a latch receiving part that holds the latch part in a prevented state when the latch part is in the closed position;
The latch portion has a latch hook,
The latch support frame has a claw receiving hole into which the latch hook is inserted when the latch part is retracted to prevent the latch part from moving in the protruding direction. a seat body that is fixed to a bicycle and seats a child facing forward;
a cover member provided at the front of the seat body and rotatably connected to the seat body in a downward and forward direction;
a grip bar provided at the rear of the cover member and serving as a grip for a child seated on the seat body;
an opening/closing handle provided on the front part of the cover member and serving as a grip when rotating the cover member;
When the cover member is in a predetermined closed position that covers the seat body from the front, it is in a locked state and prevents rotation of the cover member, and when the opening/closing handle is pulled, it is in an unlocked state, a locking mechanism that allows rotation of the cover member;
a first link member having one end rotatably connected to the bottom of the seat body and the other end rotatably connected to the bottom of the cover member;
a second link member, one end of which is rotatably connected to a side of the seat body, and the other end of which is rotatably connected to a side of the cover member;
The cover member is connected and supported to the seat body via the first link member and the second link member.

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