GB2355773A

GB2355773A - A collapsible baby carriage with linked braking device

Info

Publication number: GB2355773A
Application number: GB0016650A
Authority: GB
Inventors: Guanhong Liu
Original assignee: COMBI
Current assignee: COMBI
Priority date: 1999-10-29
Filing date: 2000-07-06
Publication date: 2001-05-02
Anticipated expiration: 2020-07-06
Also published as: CN2401426Y; GB2355773B; GB0016650D0

Abstract

A collapsible baby carriage comprises a chair framework 1, supporting rods 4 for front and rear wheels 2, 3, and a linked braking device 8 which includes a collapsible main bar 80 connected to two pivoted brake members 820 each carrying a brake rod 821 engageable with notches formed on brake disks 31 positioned on the inner side of a rear-wheel 3. The main bar includes a collapsible member 81 whereby simultaneous braking of both left and right rear wheels 3 is possible without impairing the collapsing function of the baby carriage. All transverse supporting rods 5, 6, 7, 9 and 11 in the carriage are provided with similar collapsible members so that the framework can be not only folded and shortened in vertical direction but also in horizontal direction. A shopping bag 10 is slung beneath the chair framework.

Description

2355773 BABY CARRIAGE_ The present invention relates to a baby carriage,

particularly to a collapsible baby carriage with linked 5 braking device To facilitate collapse, a conventional baby carriage is provided with braking device on each of the two rear wheels individually. Braking device usually comprises gear tooth-like brake disk with a plurality of notches and a brake member connected with a foot pedal. The said brake disk is set up at the central portion of wheel and co-axial with the wheel. The brake member is provided with a brake rod corresponding to tooth-like notch of the brake disk. While braking, the pedal on one end of the brake member is trod down to move the pivoted brake rod so as to insert itself into the notch of gear tooth-like brake disk. This prevents said rear wheel from rotating and moving forward. Because the conventional baby carriage braking device is mounted on each of the two rear wheels individually, when the pedal of the crank brake core on one side is trod down only the wheel on that side is braked. Therefore, it is almost impossible for anyone to tread simultaneously on both brake pedals of two rear wheels, the braking effect and convenience in usage of the braking device of a conventional baby carriage is rather limited.

Moreover, a conventional baby carriage can be only 2 folded and shortened in vertical direction. On account of the presence of the transverse rigid supporting rod in the design of framework, and said supporting rod cannot be bent, the framework cannot be collapsed in horizontal 5 direction to decrease its volume further.

It would be desirable to be able to overcome the deficiency of conventional technology, to provide a linked braking device which can simultaneously brake both left and right lateral rear wheels, and to provide a baby carriage with linked braking device without impairing collapsing function of basic baby carriage.

It would also be desirable to provide a baby carriage with linked braking device, wherein the framework of said carriage can not only be collapsed and shortened in vertical direction but also in horizontal direction.

It would also be desirable to provide a baby carriage with linked braking device, wherein the said carriage can be provided with a shopping bag, which can be attached and removed easily and contain more articles.

According to the present invention a baby carriage with linked braking device comprises essentially a chair framework, front and rear wheels, supporting rods for front and rear wheels, transverse rod for rear wheels, push bar, transverse rod for foot tread, as well as an above- mentioned braking device. Said braking device is characterized in that it is connected between two rear 3 wheels and is a collapsible bar-like linked braking device which can brake simultaneously the two lateral rear wheels. The braking device comprises:

a main bar, of which the two ends are connected respectively to the two supporting rods for rear wheels through brake member and on the inner side of each rear wheel is fixed a brake disk with a plurality of gear toothlike notches, as well as a collapsible member, provided and pivoted at central portion of the main bar.

On the above said baby carriage with linked braking device a removable front handrail may be provided in front of chair framework. A collapsible member may be provided at the central portion of said front handrail, of which the two ends are set up with a connector of pipe socket type respectively.

On the above baby carriage with linked braking device a removable shopping bag may be arranged under chair framework. Two notches may be provided on both sides symmetrically on the upper edge of said shopping bag, and the upper edge of the bag may be provided with buttonholes. Hooks for mating with said buttonholes may be fixed correspondingly under the chair framework.

In the above baby carriage with linked braking device the said transverse rod for rear wheels, push bar, transverse rod for foot tread and upper transverse bar of chair framework may be provided each with a collapsible 4 member respectively.

With said technical scheme according to the present invention, a collapsible linked braking device is arranged between two rear wheels, and braking on left and right rear-wheels can be carried out simultaneously without impairing collapsing function of basic baby carriage.

Due to the fact that all transverse rigid supporting rods in the carriage are provided with collapsible member respectively, the framework can be not only folded and shortened in vertical direction but also in horizontal direction.

In addition, under the framework can be provided a shopping bag, which is easy to be attached and removed. Said shopping bag is provided with notches, and would not interfere with transverse rod for rear wheels while being attached under the baby carriage. On that account, capacity of shopping bag can be increased to contain more articles.

The present invention is further described as follows with reference to accompanying figures of which:

Fig.1 is a schematic view of the structure of present invention.

Fig. 2 is a schematic view of the structure of the linked braking device shown in Fig. 1 (bottom view) Fig. 3 is a schematic view of the structure of the collapsible member shown in Fig. 1.

Fig.4 is a schematic view of collapsible member shown in Fig. 3 in a bent state.

Fig.5 is a schematic view of the structure of front handrail shown in Fig.l.

Fig. 6 is a sectional view of the socket shown in Fig.5.

Fig. 7 is a schematic view of the shopping bag shown in Fig.l.

As shown in the fig.1, present invention is a collapsible baby carriage, which comprises essentially a chair framework 1, front wheels with supporting rods 2, rear wheels 3 and rear-wheel supporting rods 4, a removable front handrail 5 in front of chair framework with a collapsible member 51at its center, an upper push bar 6 connected at the back of the chair framework with a collapsible member 61 at its center, and a removable shopping bag 10 attached under framework 1.

A linked braking device 8 is arranged between the two rear wheels 3. Since the construction of the two rear wheels is the same, only rear wheel 3 on one side is described in the following for the sake of convenience. As shown in Fig.2, the braking device 8 is a bar-like linked braking device connected between two rear wheels. Said braking device comprises a main bar 80, of which the two ends are connected respectively to the two rear wheel supporting rods 4 through a brake member 82 and on each 6 rear wheel is fixed concentrically a brake disk 31 with a plurality of gear tooth-like notches. There are two rear wheels and hence two brake disks (only one is shown in Fig. 2).

The brake member 82 shown in Fig.2 comprises a brake plate 820, a brake rod 821, and a L-shaped joint plate 822.

The lower end of said brake plate 820 is fixed rigidly to the end of said main bar 80 (i.e. to short joint bar 83), and the other end is jointed through a pivot pin 823 to the lower end of the L-shaped joint plate 822, of which the upper end is fixed rigidly to the rear-wheel supporting rod 4.

Said brake rod 821 is fixed rigidly to the brake plate 820 such that its free end is perpendicular to the brake disk 31. Fig.2 shows a twin rear wheel, and hence the two ends of brake rod 821 are perpendicular to left and right brake disks respectively.

When the main bar 80 is trod by a foot from the back of baby carriage, both brake plates 820 of the left and right rear wheel are driven simultaneously, and the brake rods 821 fixed on brake plate 820 rotate around pivot pin 823, when they come near to brake disks 31 the brake rods 821 are inserted into tooth-like notches of the brake disks 31and braking is accomplished.

With reference to both Fig.3 and 4, the construction of collapsible member 81 is shown schematically. The main 7 bar 80 is composed of a collapsible member 81 positioned at its center portion and two short connecting bars 83, 831jointed on left and right sides of collapsible member 81 respectively. Said collapsible member comprises a mid bar 810, at the too ends of the mid bar is each provided integrally a first pivot end and a second pivot end with, each end provided with a rounded projected male-female pivoting part of insertion type.

one end of each of the two connectors 812 and 8121 is provided pivoting rounded projected male-female pivoting part and jointed respectively with mating female male part of the first pivot end and the second pivot end through pivot pin 801. Hence the two short connecting bars are pivotedly connected respectively to the two ends of mid bar. The other ends of the two connectors are fixed rigidly to two short connecting bars 83, 83'respectively.

The construction of connection between mid bar 810 and connectors 812 and 8121 on both sides is similar to the mode used for window or door pivoting hinges. Male and female pivoting parts are to be mated with each other. In the present invention, the two ends of mid bar 810 are set with a male connector and a female connector respectively, and mated with connectors 812 and 8121 through pivot pin 801.

The male and female pivoting part of the first pivot end and second pivot end is arranged and protruded on lower 8 side of mid bar 810. The female-male pivoting part of connectors 812 or 8121 is also provided and protruded on the lower side. After the above said parts are assembled correspondingly, the two short connecting bars 83,831 can be bent in opposite direction (as shown in Fig.4).

As shown in Fig.1, 5 and 6, a removable front handrail is provided before chair framework for hanging baby pouch. Said front handrail 5 is removable and can be replaced by handrail of other type (not shown in figures) Said f ront handrail 5 is provided in the middle with a collapsible member 51, and with a pipe socket 52 at each of the two open ends. A protruding flange 521 is provided around the peripheral wall of socket 52 at its end near the handrail. In the cavity of pipe socket is set up a U-shaped spring clamp 522. On one leaf of the spring clamp is fixed clip pin 523, which protrudes out of socket wall through hole defined in the pipe wall. In this way, the front handrail of baby carriage is mounted through said flange 521 and clip pin 523.

In order that the baby carriage can be folded transversely too, all horizontal supporting bars or rods are provided with collapsible members. For example, the rear-wheel transverse supporting bar 7 between two rear wheel supporting rods is provided with a collapsible member 71 at middle; the foot tread transverse rod 9 is provided with a collapsible member at middle (not shown in the 9 figures); similarly, the upper transverse bar 11 of chair framework is also provided with a collapsible member (no reference numeral is shown in the figures). The construction of all these collapsible members 51, 61, 71 is the same as that of collapsible member 81 (shown in Fig.3 and 4). When the whole carriage is collapsed and folded, all collapsible members are folded, so that the whole baby carriage can be not only folded lengthwise, but also sidewise too. Consequently the baby carriage is folded to a volume as small as possible, to facilitate storage and transportation.

As shown in Fig.1 under the chair framework of baby carriage is suspended a shopping bag 10 made of flexible material. As shown in Fig.7, said shopping bag has two notches defined on both sides symmetrically on the upper edge, and on the notched upper edge are provided with buttonholes 102. Hooks for mating with said buttonholes are fixed correspondingly under chair framework and the bag can be attached or removed. Notches provided on the two sides of said shopping bag symmetrically are to avoid interference with rear- wheel support transverse bar 7 under the carriage. Consequently, capacity of the bag can be increased to carry more articles.

Claims

CLAIM

1. A collapsible baby carriage with linked braking device comprises a chair framework, front and rear wheels, supporting rods for front and rear wheels, transverse rod for rear wheels, push bar, transverse rod for foot tread, as well as a braking device, wherein said braking device is a collapsible bar-like linked braking device, the braking device comprises:

a main bar, of which the two ends are connected respectively to the two support rods of rear wheels through a brake member and on the inner side of each rear wheel is fixed a brake disk with a plurality of gear tooth-like notches; a collapsible member set and pivoted at central portion of the main bar.

2. A collapsible baby carriage with linked braking device as defined in Claim 1, wherein said braking device comprises a braking plate, a brake rod and a L-shaped joint plate, the lower end of said brake plate is f ixed rigidly to end the of said main bar, and the other end is jointed through a pivot pin to the lower end of the L-shaped joint plate, of which the upper end is fixed rigidly to rearwheel supporting rod; I I said brake rod is f ixed rigidly to the brake plate, with its f ree end perpendicular to brake disk.

3. A collapsible baby carriage with linked braking device as def ined in Claim 1 or claim 2, wherein said collapsible member comprises a mid bar, at the two ends of the mid bar is each formed integrally a f irst pivot end and a second pivot end, respectively with each end provided with rounded projected male-female pivoting part of insertion type; and two connectors, one end of each connector is provided with a rounded projected male-female pivoting part of insertion type and jointed respectively with mating male-female pivoting part of the first pivot end and the second pivot end through pivot pin, the other ends of the two connectors are fixed rigidly to two short connecting bars respectively.

4. A collapsible baby carriage with linked braking device as def ined in any one of claims 1 to 3, wherein a removable f ront handrail is provided bef ore said chair framework, and said handrail is set with a collapsible member in the middle and with a pipe socket at each open end.

5. A collapsible baby carriage with linked braking 12 device as def ined in Claim 4, wherein said pipe socket has a protruding f lange around the peripheral wall at its end near the inner side, in the cavity of f ree end of pipe socket is set up a U-shaped spring clamp. On one leaf of the spring clamp is f ixed a clip pin, which protrudes out of socket wall through a hole defined in the pipe wall.

6. A collapsible baby carriage with linked braking device as defined in any one of claims 1 to 5, wherein said 10 push bar has a collapsible member in the middle.

7. A collapsible baby carriage with linked braking device as defined in any one of claims 1 to 6 wherein said rear-wheel transverse rod has a collapsible member in the 15 middle.

8. A collapsible baby carriage with linked braking device as def ined in any one of claims 1 to 7 wherein said transverse rod for foot tread has a collapsible member in 20 the middle.

9. A collapsible baby carriage with linked braking device as def ined in any one of claims 1 to 8, wherein said upper transverse rod of the chair framework has a 25 collapsible member in the middle.

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10. A collapsible baby carriage with linked braking device as def ined in any one of claims 1 to 9 wherein under said chair framework is suspended a removable shopping bag with two notches set on both sides symmetrically on the upper edge, and on the notched upper edge are provided with buttonholes, hooks for mating with said buttonholes are fixed correspondingly under the chair framework.

11. A collapsible baby carriage with a linked braking device substantially as described with reference to and as illustrated by the accompanying drawings