JP2008285127A - Folding type stroller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stroller foldable not only backwards and forwards but also right and left and reducing the volume after folding. <P>SOLUTION: The stroller has a U-shaped bottom part support part 1 and front part support part 2 having opened rear sides. The bottom part support part 1 has two bottom part branch pipes 4 connected by pins to a bottom part plastic part 3 at the front end. Wheels 5 are fitted to the lower part of the bottom part plastic part 3 and rear ends of the bottom part branch pipes 4, respectively. The front part support part 2 has two front part branch pipes 7 connected by pins to a front part plastic part 6 at the front end. The bottom part plastic part 3 is laterally connected by pins to the front part plastic part 6, and the two front part branch pipes 7 are connected by pins to push rods 9 at the rear ends via upper joints 8, respectively. Front parts of the push rods 9 are extended forwardly and positioned below the front part branch pipes 7. The push rods 9 have lower joint parts 10 locked on the front part branch pipes 7 in the front parts, and an X-shaped support part 11 is connected by pins between the lower joints 10 and the bottom part branch pipes 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a folding stroller.

Strollers currently available on the market have a frame with a lift bag and a basket or seat, the frame has a front wheel part on the front bottom and a rear wheel part on the rear bottom, and the frame is symmetrically arranged on the left and right It has two side frames and a number of crossbars connected between them, each side frame has a front wheel support, a rear wheel support, and a push-in holding rod, and the frame is a stroller It can be locked when deployed.
JP 2006-290213 A

The disadvantages of such a stroller are as follows.
1. The overall structure basically has two left and right frames, which can only be folded back and forth, not left and right, and still have a large volume after folding, which is inconvenient to store and carry .
2. Since the frame structure is relatively complicated and a large number of crossbars are connected and fixed between the two left and right frames, there are many obstacles at the time of folding, and the use is troublesome.

  The present invention has been devised in view of the above-described conventional problems, and can be folded not only in the front-rear direction but also in the left-right direction, the volume after folding is reduced, and there is less obstruction during folding. An object of the present invention is to provide a folding baby stroller that is more convenient to carry, and claim 1 has a U-shaped bottom support portion and a front support portion that are open at the rear, and the bottom support portion is It has a bottom plastic part at its front end and two bottom branch pipes that are pin-connected to the bottom plastic part in the vertical direction, and a wheel is attached to each of the lower part of the bottom plastic part and the rear end of the bottom branch pipe. The front support part has a front plastic part at the front end and two front branch pipes connected to the front plastic part in the vertical direction, and the bottom plastic part is the front plastic part. The two front branch pipes are respectively pin-connected to the push rods via the upper joints at the rear ends, and the front parts of the push rods extend forward and the lower parts of the front branch pipes. The push rod has a lower joint to be locked with the front branch pipe at the front, and an X-shaped support is pin-connected between the two lower joints and the bottom branch pipe. It is that you are.

  According to a second aspect of the present invention, a U-shaped bottom support portion and a front support portion which are open at the rear are provided, and the bottom support portion is connected to the bottom plastic portion at the front end and the bottom plastic portion by a pin connection in the vertical direction. Two bottom branch pipes, and a wheel is attached to each of the lower part of the bottom plastic part and the rear end of the bottom branch pipe, and the front support part is a front plastic part and a front plastic part at the front end. With two front branch pipes that are vertically pinned to each other, the bottom plastic part is laterally pinned to the front plastic part, and the two front branch pipes are push rods at the rear end respectively. The push rod is connected to the front branch pipe, the front part of the push rod extends forward and is located at the lower part of the front branch pipe, and the push rod is locked with the front branch pipe. The lower part of the front branch pipe has an X-shaped support part that is pin-connected between the two lower joints and the bottom branch pipe. And the front end of the push rod, the push rod has a lock slide block at its front end opening, the lock slide block can be inserted into the groove, and the lock slide block has a spring at its rear end. The spring is fixed to the adjustment pin in the inner space of the push rod, the lock slide block is connected to the pulling rope at the rear end, the pulling rope is connected to the folding handle at the rear end, and the folding handle is connected to the push rod. Located in the rear tube, the folding handle has a toggle block on its outside, The push rod so as to correspond to the position of the block is that the toggle hole is provided.

  Further, according to the third and fourth aspects, the two front branch pipes are pin-connected to the front plastic part in the vertical direction, and the bottom plastic part is pin-connected to the front plastic part. Each pipe is pin-connected to the push rod at the rear end via an upper joint, the front part of the push rod extends forward and is located at the lower part of the front branch pipe, and the push rod is connected to the front branch pipe. The lower joint is locked at the front, the X-shaped support is pin-connected between the two lower joints and the bottom branch pipe, and the groove that opens upwards is the front branch It is provided at the lower part of the pipe and the front end of the push rod, and the push rod has a lock slide block at its front end opening, The lock slide block has a spring at its rear end, and the spring is fixed to the adjustment pin in the inner space of the push rod, and the lock slide block is connected to the pulling rope at the rear end. The pulling rope is connected to the folding handle at its rear end, and the folding handle is arranged in the tube at the rear of the push rod, and the folding handle is provided with a toggle block on its outer side. Correspondingly, the push rod is provided with a toggle hole, the two push rods are pin-connected with the folding support rod between their rear parts, and the folding support rod has a coupling cover in the middle The coupling cover has a folding button and has two bottom branch pipes These are the bottom support rods folding between the rear is a pin connected is that the connecting rod is connected between the bottom support rod and the bottom plastic part.

The advantages of the folding baby stroller are as follows.
1. It can be folded not only forward and backward but also left and right, the volume after folding is reduced, and there is less obstruction during folding, making it easier to store and carry.
2. The bottom support part and the front support part are all U-shaped, and the X-shaped support part is pin-connected between the bottom support part and the front support part, avoiding lateral obstructions when folding is doing.

Embodiments of the present invention will be described below with reference to the drawings.
1, 2, 3, 4, 5, 6, 7, 8, and 9, the foldable baby stroller includes a U-shaped bottom support portion 1 and a front portion that are open at the rear. And a support portion 2.
The bottom support part 1 has a bottom plastic part 3 at the front end and two bottom branch pipes 4 that are pin-connected to the bottom plastic part 3 in the vertical direction, and the bottom part of the bottom plastic part 3 and the bottom branch pipe 4 A wheel 5 is attached to each of the rear ends, and the two bottom branch pipes 4 are pin-connected by a folded bottom support rod 14 between the rear portions thereof, and the bottom support rod 14 and the bottom plastic portion 3 are connected to each other. The connecting rod 15 is connected between the two.

  The front support part 2 has a front plastic part 6 at the front end and two front branch pipes 7 connected to the front plastic part 6 in the vertical direction, and the bottom plastic part 3 is a front plastic part. 6, the two front branch pipes 7 are respectively pin-connected to the push rod 9 via the upper joint 8 at the rear end, and the front portion of the push rod 9 extends forward. The push rod 9 is located at the lower part of the front branch pipe 7 and has a lower joint 10 to be locked with the front branch pipe 7 at the front part, and two X-shaped support parts 11 are provided. The lower joint 10 and the bottom branch pipe 4 are pin-connected, and the two push rods 9 are pin-connected to the folding support rod 12 between the rear portions thereof, and the folding support rod 1 Is provided with a coupling cover 24 in the middle portion, coupling cover 24 has a folding button 13.

  As shown in the partially enlarged view of FIG. 7, a groove 16 that opens upward is provided in the lower part of the front branch pipe 7 and the front end of the push rod 9, and the push rod 9 is locked to the front end opening. 17, the lock slide block 17 can be inserted into the groove 16, and the lock slide block 17 is provided with a spring 18 at the rear end thereof, and the spring 18 is within the inner space of the push rod 9 and the adjustment pin 19. The lock slide block 17 is connected to the pulling rope 23 at the rear end thereof, and the pulling rope 23 is connected to the folding handle 20 at the rear end, and the folding handle 20 is connected to the inside of the tube at the rear part of the push rod 9. The folding handle 20 is provided with a toggle block 21 on the outside thereof. , The toggle hole 22 is provided in the push rod 9 in response to the position of the toggle block 21.

  In order to fold the stroller, as shown in FIG. 9, the folding button 13 is pushed and held to fold the folding support rod 12, and then the toggle block 21 of the folding handle 20 of the push rods 9 on both sides is lifted to pull the rope. 23, the lock slide block 17 is slid upward, and when the lock slide block 17 is completely retracted from the groove 16 below the front branch pipe 7, a forward force is applied to the push rod 9, and the stroller is folded. be able to.

  In order to deploy the stroller, the push rod 9 is lifted and pulled to separate it from the front support part 2, and the lower part of the lock slide block 17 is in contact with the lower part of the front branch pipe 7. The block 17 slides and secures in the groove 16 below the front branch pipe 7, lifts the coupling cover 24 and pulls the folding support rod 12 straight, so that the stroller is fully deployed and locked.

  When the stroller is folded in this way, the toggle block 21 is pulled backward with a finger, the lock slide block 17 is pulled up via the pulling rope 23, and the lock slide block 17 is removed from the groove 16, thereby pushing the left and right pushes. The rods 9 and 9 can be folded on the left and right front branch pipes 7 and 7 via the upper joints 8 and 8 respectively, and the left and right front branch pipes 7 are connected to the left and right bottom branch pipes 4. , 4, and left and right front branch pipes 7, 7 on left and right bottom branch pipes 4, 4 and left and right push rods 9, 9 are folded in a trifold shape, The folded state is extremely short in the front-rear direction.

  Further, the left and right bottom branch pipes 4 and 4 are folded around the bottom plastic portion 3 so as to reduce the dimension in the width direction. At this time, the folded bottom support rod 14 is folded at the center, and the X-shaped The support portion 11 is also folded in the width direction, and the folding support rod 12 is also folded at the central coupling cover 24, and can be folded compactly with a reduced size in the width direction. It can be done very easily.

  In this way, it can be folded not only to the front and back but also to the left and right, the volume after folding is reduced, and since there is less obstruction during folding, it is more convenient to store and carry, All of the front support portions 2 are U-shaped, and the X-shaped support portion 11 is pin-connected between the bottom support portion 1 and the front support portion 2 to avoid lateral obstructions during folding. is doing.

It is the schematic of a folding stroller. It is a front view of a folding stroller. It is a rear view of a folding stroller. It is a left view of a folding stroller. It is a right view (a part was shown with the cross section) of the folding stroller. It is a right view (a part was shown with the cross section) of the folding stroller. It is a partial expanded sectional view of a folding stroller. It is a bottom view of a folding stroller. It is the schematic of the half-folded state of a folding stroller.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom support part 2 Front support part 3 Bottom plastic part 4 Bottom branch pipe 5 Wheel 6 Front plastic part 7 Front branch pipe 8 Upper joint 9 Push rod 10 Lower joint 11 X-shaped support part 12 Folding support rod 13 Folding Button 14 Folding bottom support rod 15 Connecting rod 16 Groove 17 Lock slide block 18 Spring 19 Adjustment pin 20 Folding handle 21 Toggle block 22 Toggle hole 23 Pulling rope 24 Bonding cover

Claims (4)

It has a U-shaped bottom support (1) and a front support (2) that are open at the rear,
The bottom support part (1) has a bottom plastic part (3) at its front end, and two bottom branch pipes (4) pin-connected to the bottom plastic part (3) in the vertical direction,
A wheel (5) is attached to each of the lower part of the bottom plastic part (3) and the rear end of the bottom branch pipe (4),
The front support part (2) has a front plastic part (6) at the front end, and two front branch pipes (7) pin-connected to the front plastic part (6) in the vertical direction,
The bottom plastic part (3) is laterally pinned to the front plastic part (6),
The two front branch pipes (7) are respectively pin-connected to the push rod (9) via the upper joint (8) at the rear end,
The front part of the push rod (9) extends forward and is located at the lower part of the front branch pipe (7), and the push rod (9) has a lower joint (10) locked with the front branch pipe (7). At the front,
A folding stroller in which an X-shaped support (11) is pin-connected between two lower joints (10) and a bottom branch pipe (4). An upwardly opening groove (16) is provided in the lower part of the front branch pipe (7) and the front end of the push rod (9),
The push rod (9) is provided with a lock slide block (17) at its front end opening, and the lock slide block (17) can enter the groove (16),
The lock slide block (17) is provided with a spring (18) at its rear end, and the spring (18) is fixed to the adjustment pin (19) in the internal space of the push rod (9),
The rear end of the lock slide block (17) is connected to the pulling rope (23), the pulling rope (23) is connected to the folding handle (20) at the rear end, and the folding handle (20) is the rear part of the push rod (9). The folding handle (20) has a toggle block (21) on its outer side, and the push rod (9) has a toggle hole (22) corresponding to the position of the toggle block (21). The foldable baby stroller according to claim 1. The two push rods (9) are pin-connected with the folding support rod (12) between their rear parts, and the folding support rod (12) is provided with a coupling cover (24) in the middle thereof, and the coupling cover (24 The folding stroller according to claim 1, further comprising a folding button (13). The two bottom branch pipes (4) are pinned to the folded bottom support rod (14) between their rear parts, and the connecting rod (15) is connected between the bottom support rod (14) and the bottom plastic part (3). The foldable baby stroller according to claim 1.

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