GB2351044A

GB2351044A - A collapsible stroller

Info

Publication number: GB2351044A
Application number: GB9913997A
Authority: GB
Inventors: Ying-Hsiung Cheng
Original assignee: WU HSIU TUAN
Current assignee: WU HSIU TUAN
Priority date: 1999-06-17
Filing date: 1999-06-17
Publication date: 2000-12-20
Also published as: GB9913997D0

Abstract

A collapsible stroller is provided for transporting a child. The stroller has a push handle (2), and supporting members (3,4) capable of pivoting relative to one another such that the stroller can be folded or expanded. A connecting block (5) is movably connected to one of the rear supporting members (4), and can move along with the push handle (2); the rear supporting member (4) has an engaging protrusion (42) capable of resiliently engaging the connecting block (5) to stop the same from moving when the stroller is disposed in the expanded position; the connecting block (5) has a pressing block (511), which, when depressed, can urge the engaging protrusion (42) to move into the rear supporting member (4) for permitting the connecting block (5) to be moved downward along with the push handle (2) in order to fold the stroller.

Description

1 2351044 A COLLAPSIBLE STROLLER

BACKGROUND AND SLWRY OF THE INVENTION 5

The present invention relates to a collapsible stroller, and more pa r t 1 cu 1 a r 1 y to one wh 1 ch can be moved to an expanded ope ra t i ng pos i t i on or a folded position very easily.

Collapsible strollers are well known in the art. Users can expand such collapsible strollers to a use position for transporting a child therein, and can fold the same to compact folded ones for easi ly storage. The collapsible strollers are very popular mainly because they, when not in use, can be folded and will not occupy too much room.

is Because collapsible strollersmight be folded andunfolded frequently by the users according to their demands, it is important that the collapsible strollers can be folded and unfolded very easily and conveniently. Therefore, it is a main object of the present invention to provide a collapsible stroller which can be moved between a folded position and an expanded operating position readily and conveniently.

The collapsible stroller of the present invention comprises a push handle, a front supporting member, a rear supporting member as the main parts; the above three main parts are connected such that they can pivot relative each other.

A connecting block is movably connected to the rear supporting member; the connecting block can move along with ihe push handle by a connecting rod pivoted to both the push handle and the connecting block.

2 The rear supporting member has an engaging protrusion resiliently projecting beyond the rear supporting member; when the stroller is disposed in an expanded use position, the engaging protrusionwill engage a lower end of the connecting block tostop the same from moving downwards 5 and prevent the stroller from being unwarily folded.

Furthermore, the connecting block has a pressing block, which, when the stroller is in the expanded position, can be pressed downward to urge the engaging protrusion into the rear supporting member for permitting the connecting block to be moved along with the push handle in order to collapse the stroller; thus, it is very easy and convenient to fold and expand the stroller in the present Invention.

BRIEF DESCRIPTION OF TEE DRAWINGS

The present inventionwill be better understood with reference to the accompanying drawings, wherein:

Fig. 1 is a perspective viewof a collapsible stroller of the present invention; Fig. 2 is a side view of the collapsible stroller of the present invention; Fig. 3 is a perspective viewof a connecting block and the associated parts of the stroller of the present invention; Fig. 4 is a view showing a first step of collapsing an expanded stroller of the present invention; Fig. 5 is a view showing a second step of collapsing an expanded 3 stroller of the present invention; Fig. 6 is a view showing a third step of collapsing an expanded stroller of the present invention; Fig. 7 is a side view of a stroller of the present invention in the 5 folded position; and, Fig. 8 is a view showing the connection between the connecting block and the engaging protrusion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring toFigs. 1,2, and 3, a collapsible stroller of the present invention includes a connecting member 1, a push handle 2, a front supporting member 3, a rear supporting member 4, a connecting block 5, a seat frame 6, and wheels 31, 43 as the main parts; the push handle 2, the front supporting member 3 and the rear supporting member 4 are pivoted to the connecting member 1; the connecting block 5 is connected to, and canmove relative to, the rear supporting member 4; thewheels 31 are fitted to lower end port ion of the f ront support ing member 3 to provide mobi 11 ty for the stroller; the wheels 43 are fitted to lower end portion of the rear supporting member 4 to provide mobility for the stroller.

A connecting rod 62 is pivoted to the front supporting rod 3 at one end, and pivoted to the connecting block 5 at the other end. A connect i ng rod 61 is pivoted to the push handle 2 at one end, and pivoted to the connecting block 5 at the other end.

The scat frame 6 is pivotally connected to connecting block 5 at one 4 end thereof-, the seat frame 6 is provided for a seat ( not numbered) to be mounted thereon such that a child can lie on the seat of the stroller.

Furthermore, referring to Fig. 3, a pressing block 51 is pivotally connected to the connecting block 5, and has a depressing projection 511.

The rear supporting member 4 has an engaging protrusion 42 which is normally urged by elastic members to stay in a position projecting above the rear supporting member 4, and can be depressed into the rear support in,,g, member 4.

When the collapsible stroller of the present invention is expanded to a use position, the engaging protrusion 42 projects above the rear supporting member 4, and engages lower end of the connecting block 5 to stop the connecting block 5 from moving further downward, thus, the expanded stroller can not be unwarily folded.

When theuserwants to fold the expanded stroller toa storage position, he/she pushes the seat frame 6 upwards as shown in Fig. 6, and then presses the pressing block 51 toward the rear supporting member 4 such that the depressing projection 511 urges the engaging protrusion 42 to move into the rear supporting member 4, the depressing projection 511 being disposed adjacent to the engaging protrusion 42 when the stroller is expanded.

Then the user pushes the push handle 2 downward for the connecting block 5 to move downwards until the slope guiding groove 52 of the connecting block 5 passes the engaging protrusion 42, the engaging protrusion 42 being depressed, and not capable of stopping the connecting block 5 from moving downwards. The engaging prot rusion 42 wi I I move to the posi t ion projecting beyond the rear supporting member 4 after the slope guidinc.., groove 52 of the connecting block 5 moves therethrough. Thus, the collapsible stroller is folded into the storage position as shown in Fig. 7.

When the user wants to expand the folded stroller to a use position, he/she pulls the push handle 2 upwards to move the connecting block 5 upwards by the connection between the connecting block 5 and the connecting rod 61, the slope guidinggroove 52 being capableof guiding the connecting block 5 to go past the engaging protrusion 42. The engaging protrusion 42 wi I I move to the position pro'ecting beyond the rear supporting member 4 after the lower end of the connecting block 5 moves past the engaging protrusion 42; thus, the stroller is expanded to the use position.

From the above, it can be understood that the collapsible stroller of the present invent ion has an advantage that 1 t can be folded and expanded with very simply action. Furthermore, the folded stroller can stand on the ground upright and firm with the wheels 31 and 43 a] I contacting the ground, as shown in Fig. 8.

6

Claims

WHAT IS CLAINED IS:

1. A collapsible stroller, comprising a push handle pivotally connected to a connecting member of said stroller; a front supporting member pivoted to said connecting member, said front supporting member being provided with wheels at lower ends thereof; a first connecting rod pivoted to said tront supporting member atone end; a rear supporting member pivoted said connecting member, said rear supporting member being provided with wheels at lower ends thereof, said rear supporting member having an engaging protrusion urged by an elastic t. C1 member to project beyond the rear supporting member, said engaging protrusion being capable of being depressed into said rear supporting member; a connecting block movably connected to said rear supporting member, said connecting block having a pressing block pivoted thereto, and a slope guiding groove at upper end portion thereof, said pressing block having a depressing projection; said first connecting rod being pivoted to said connecting block at other end; a second connecting rod pivoted to said push handle at one end, and pivoted to said connecting block at other end; id engaging protrusion being capable of engaging a lower endof said sal 1 l 1 connecting block to stop said connecting block frommoving downwards when said stroller is expanded to a use position; 7 depressing projection of said pressing block being disposed sal 1 1 ' adjacent to said engaging protrusion when said stroller is expanded to said use position; id depressing projection being capable of urging said engaging sal j 1 1 ' 1 C k, protrusion into said rear supporting member for said connecting block to be capable of moving downward along with said push handle to fold said stroller to folded storage position; said slope guiding groove of said connecting block being capable of moving past said engaging protrusion for said connecting block to move upwards to expand said stroller from said folded position to said use position upon pulling said push handle upwards.