WO2006116900A1 - Baby carriage - Google Patents

Abstract

A baby carriage is composed of a frame, a front wheel, rear wheels. The said frame includes front wheel rack and side racks that are installed at two sides of the front wheel rack. Each side rack includes a rear wheel rack and a lower handle bar. A sleeve is installed on the front wheel rack slidablely. The top end of the rear wheel rack is articulated with the back end of the front wheel rack. The down end of the lower handle bar is articulated with the back end of the front wheel rack. The side racks also includes an upper supporting rod and a down supporting rod. The back end of the upper supporting rod is articulated with the lower handle bar. The front end of the upper supporting rod is articulated with the sleeve. The back end of the down supporting rod is articulated with the rear wheel rack. The front end of the down supporting rod is articulated with the sleeve. As the sleeve slips forward along the front wheel rack, the carriage is folded with the action of the upper supporting rod and the down supporting rod, subsequently the lower handle bar and the rear wheel rack are furled relative to the front wheel rack. The structure of the baby carriage is simple and can be folded into small volume.

Description

 Children's cart

 Technical field

 The invention relates to a stroller.

 Background technique

 In the prior art, a child stroller is disclosed in the publication entitled "A Foldable Support Structure" of PCT Patent Publication No. WO2004097282, which includes a vehicle frame, a front wheel assembly, a rear wheel assembly, The cart frame includes a front wheel bracket, side brackets on both sides of the front wheel bracket, and the side brackets on each side include a rear wheel bracket and a lower push rod, and the front wheel assembly is disposed on the front wheel On the bracket, the rear wheel assembly is disposed on the rear wheel bracket, and the vehicle frame is generally designed to be foldable to a small volume for transportation, so the front wheel bracket, the rear wheel bracket and the push down are usually The rods are arranged to be foldable, and the side brackets on both sides are also designed to be relatively foldable. In order to facilitate the folding operation of the user, it is usually necessary to provide a driving mechanism on the cart frame, so that when the user folds the front wheel bracket, the rear wheel bracket and the push-down lever, the driving mechanism can simultaneously make both sides The side brackets are relatively folded between each other, and the driving mechanism makes the structure of the cart frame more complicated, and the folding operation steps are also cumbersome.

 Summary of the invention

 SUMMARY OF THE INVENTION It is an object of the present invention to provide a stroller which is small in size after folding and which has a simple structure.

 The technical solution of the present invention is: a stroller including a cart frame, a front wheel assembly, a rear wheel assembly, the cart frame including a front wheel bracket, and sides on both sides of the front wheel bracket a bracket, each side of the side bracket includes a rear wheel bracket and a lower push rod, the front wheel assembly is disposed on the front wheel bracket, and the rear wheel assembly is disposed on the rear wheel bracket a sliding sleeve is disposed on the front wheel bracket slidably along a front-rear direction of the front wheel bracket, and an upper end portion of the rear wheel bracket is rotatably connected to a rear portion of the front wheel bracket, and the lower push handle a lower end portion of the rod is rotatably coupled to a rear portion of the front wheel bracket, the side bracket further includes an upper link and a lower link, and a rear end portion of the upper link and the pushdown Rotating the rod phase, the front end portion of the upper connecting rod is rotatably connected to the sliding sleeve, and the rear end portion of the lower connecting rod is rotatably connected with the rear wheel bracket, the lower portion A front end portion of the connecting rod is rotatably coupled to the sliding sleeve.

Compared with the prior art, the present invention has the following advantages: due to folding, it is only necessary to slide the sliding sleeve forward along the front wheel bracket, under the action of the upper link and the lower link, The push-down lever and the rear wheel bracket can be folded and folded relative to the front wheel bracket, and the structure is simple and can be folded to Small size.

 DRAWINGS

 Figure 1 is a developed perspective view of the present invention;

 Figure 2 is a front view of the half fold of the present invention;

 Figure 3 is a front elevational view of the present invention;

 Among them: 1, cart frame; 2, front wheel assembly; 3, rear wheel assembly; 4, front wheel bracket; 5, rear wheel bracket; 6, push the lever; 7, push the lever; 8, slip 10; upper connecting rod; 11, lower connecting rod; 12, rear support; 13, seat rod; 14, push-up lever connecting member; 15, locking groove; 16, seat rod connecting member; 18, side bracket; 19, a first rotation member; 20, a second rotation member; 21, a first rotation shaft; 22, a second rotation shaft; 23, a first extension portion; 24, a second extension portion;

 detailed description

 As shown in FIG. 1, a stroller includes a stroller frame 1, a front wheel assembly 2, a rear wheel assembly 3, and the stroller frame 1 includes a front wheel bracket 4 at the front wheel. Side brackets 18 on both sides of the bracket 4, the side brackets 18 on each side include a rear wheel bracket 5 located below, a lower pusher lever 6 located above, and the front wheel assembly 1 is disposed on the front wheel bracket 4 On the front portion, the rear wheel assembly 3 is disposed on a lower portion of the rear wheel bracket 5. As shown in the respective drawings, the front wheel bracket 4 is slidably disposed along the front-rear direction of the front wheel bracket 4 with a sliding sleeve 8 , and the upper end portion of the rear wheel bracket 5 and the front wheel bracket 4 The rear portion is rotatably connected, and the lower end portion of the push-down lever 6 is rotatably coupled to the rear portion of the front wheel bracket 4, and the side bracket 18 further includes an upper link 10 and a lower link. The front end portion of the upper connecting rod 10 is rotatably connected to the lower push rod 6 , and the front end portion of the upper connecting rod 10 is rotatably connected with the sliding sleeve 8 . A rear end portion of the lower link 11 is rotatably coupled to the rear wheel bracket 5, and a front end portion of the lower link 11 is rotatably coupled to the sliding sleeve 8.

 As shown in the accompanying drawings, the upper link 10 on each side is rotatably coupled to the seat post connector 16, and the seat post connector 16 is slidably coupled to the seat post 13, the seat The rear end portion of the straw 13 is rotatably coupled to the rear portion of the front wheel bracket 4, and the seat rod 13 is provided with a seat.

The push-down lever 6 is rotatably coupled to the upper push lever 7 . When the cart frame 1 is deployed, the push-up lever 7 and the push-down lever 6 are Relatively locked. The push-down lever 6 is connected to the upper push rod connecting member 14, and the push-up lever connecting member 14 is provided with a locking groove 15, as shown in FIG. The push-up lever 7 is inserted into the locking groove 15. The push-up lever 7 is rotated between the push-down lever 6 and the push-down lever 6 to fold the cart frame to a smaller volume, and the reach of the stroller is easy to use when unfolding Implemented. Push up The rod 7 is also slidably disposed on the lower push rod 6.

 A foldable rear support 12 is disposed between the push-down levers 6 in the side brackets of the two sides, and the two outer end portions of the rear support 12 are respectively rotated with the push-down levers 6 of the corresponding sides. The connection makes the stroller more stable when deployed.

 As shown in FIG. 1, the rear portion of the front wheel bracket 4 has a first rotation preventing member 19, and when the trolley frame 1 is deployed, the rear wheel bracket 5 abuts the first On the rotation stop 19 . The rear portion of the front wheel bracket 4 has a second rotation preventing member 20, and the lower push lever 6 abuts against the second rotation preventing member 20 when the trolley frame 1 is deployed. Through the first anti-rotation member 19 and the second anti-rotation member 20, the stroller is unfolded.

 As shown in FIG. 1, the rear portion of the front wheel bracket 4 has a first extending portion 23 extending laterally to both sides, and the lower end portion of each of the lower push levers 6 on each side is respectively opposite to the corresponding side. The extensions 23 are rotatably connected, and the upper ends of the rear wheel brackets 5 on each side are also rotatably connected to the respective first extensions 23 of the respective sides. The first rotation preventing member 19 and the second rotation preventing member 20 are disposed on the first extending portion 23, and the first extending portion 23 on both sides is provided with the first stop The rotating member 19 and the second anti-rotation member 20. The sliding sleeve 8 has a second extending portion 24 extending laterally to both sides, and the lower end portions of the upper connecting rods 10 on each side are rotatably connected to the second extending portions 24 of the respective sides, respectively. The upper ends of the links 11 are also rotatably connected to the respective second extensions 24 of the respective sides.

Claims

Rights request:  1. A stroller comprising a stroller frame (1), a front wheel assembly (2), a rear wheel assembly (3), the stroller frame (1) comprising a front wheel bracket (4), located The side brackets (18) on both sides of the front wheel bracket (4), and the side brackets (18) on each side include a rear wheel bracket (5) and a lower push rod (6), the front wheel assembly (2) Provided on the front wheel bracket (4), the rear wheel assembly (3) is disposed on the rear wheel bracket (5), and the upper end portion of the rear wheel bracket (5) The rear portion of the front wheel bracket (4) is rotatably connected, and the lower end portion of the lower push rod (6) is rotatably coupled to the rear portion of the front wheel bracket (4), which is characterized in that The front wheel bracket (4) is provided with a sliding sleeve (8) slidably along the front and rear direction of the front wheel bracket (4), and the side bracket (18) further includes an upper connecting rod (10) and a lower joint a rod (11), a rear end portion of the upper link (10) is rotatably coupled to the lower push rod (6), and a front end portion of the upper link (10) is slidably Set (8) phase rotation The rear end portion of the lower link (11) is rotatably connected to the rear wheel bracket (5), and the front end portion of the lower link (11) and the sliding sleeve (8) are connected. Rotate the connection.  2. A stroller according to claim 1, wherein said upper link (10) on each side is rotatably coupled to a seat post connector (16), said seat post connector (16) a seat rod (13) is slidably coupled to the rear end of the seat rod (13) and the rear portion of the front wheel bracket (4) is rotatably connected to the seat rod (13) ) There is a seat set up.  3. The stroller according to claim 1, characterized in that: the push-down lever (6) is rotatably coupled to the upper pusher lever (7), the cart frame (1) When unfolded, the push-up lever (7) and the push-down lever (6) are relatively locked.  The stroller according to claim 1, wherein: the push-down levers (12) are disposed between the push-down levers (6) of the side brackets on the two sides, The two outer ends of the rear support (12) are respectively rotatably connected to the push-down levers (6) of the respective sides.  The stroller according to claim 1, characterized in that: the rear part of the disc front wheel bracket (4) has a first rotation preventing member (19), and the cart frame (1) is unfolded The rear wheel bracket (5) Abut on the first stop member (19).  The stroller according to claim 1, characterized in that: the rear part of the front wheel bracket (4) has a second rotation preventing member (20), and the trolley frame (1) is unfolded When the push down lever (6) Abutting on the second anti-rotation member (20). 7. The stroller according to claim 1, wherein: the rear portion of the front wheel bracket (4) has a first extension portion (23) extending laterally to both sides, each time {| Push down the stalk (6) The lower ends are respectively rotatably connected to the first extensions (23) on the respective sides, and the upper ends of the rear wheel brackets (5) on each side are also rotatably connected to the respective first extensions (23).  The stroller according to claim 1, wherein: the sliding sleeve (8) has a second extending portion (24) extending laterally to both sides, and an upper connecting rod on each side (10) The lower ends of the lower ends are respectively rotatably connected to the second extensions (24) of the respective sides, and the upper ends of the lower links (11) of each side are also rotatably connected to the second extensions (24) of the respective sides, respectively. .