JP2002347628A - Improvements in/on baby carriage/wagon for shopping or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide devices such as a baby carriage and a cart for shopping constituted of a chassis 2 designed so as to be convenient for an operation even in narrow space by providing wheels, supporting a bed, a chair and a basket type baby bed 11 and providing a waist turning steering. SOLUTION: The chassis 2 is constituted of two main parts, that is, a front part 12 and a rear part 13. The rear part 13 is constituted so as to execute oscillation for the front part 12 with a substantially vertical shaft 14 as a center to improve operability of a vehicle in narrow space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a stroller comprising a chassis having wheels, designed to support beds, chairs, baskets, and has a waist swivel steering wheel so that it can be operated conveniently even in a small space. The present invention relates to a device such as a shopping cart.

[0002]

BACKGROUND OF THE INVENTION Stroller designs on the market today include a chassis having wheels mounted for rotation on a shaft fixedly connected to the chassis or possibly individually swingable relative to the shaft. This design is used especially for front wheel pairs.

[0003]

However, such a stroller is heavy and cumbersome, and handling such a stroller in a small space is generally cumbersome. The reason for this is that the person handling the handle must push down on the rear of the stroller to lift the front wheel off the floor, so push either the left or right end of the handle forward while keeping the front wheel in the raised position. At the same time, the steering function is performed by pushing the stroller forward. This imposes a considerable burden on the back of the person handling the stroller, especially at the stage where the handle is depressed in order to necessarily raise the front wheel. This situation is not particularly appropriate for women after childbirth. The same problem occurs with certain shopping carts.

[0004]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a cart of the general type described above in which the disadvantages of the presently known cart design are eliminated by the use of a waist swivel steering. The features of the invention are set forth in the claims.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments will be described below with reference to the drawings. As can be seen in the figure, the shaft (3.4)
The invention comprising a chassis (2) with wheels (5, 6, 7, 8) mounted on it is shown for use in a stroller (1). The chassis (2) comprises two parts, a front part (12) and a rear part (13), the latter being rotatably connected to the front part by a substantially vertical pivot (14). The chassis (2) also comprises mounting means in the form of two parallel support rods (9,10) for use in basket-type cots and chairs (11).

The rear part (13) extends upward from the front wheels (5.6) and has rods (16, 17) having upper ends (18, 19) interconnected by a handlebar (20).
Are connected to the center of the crossbar (15) of the front part (12) that interconnects them.

The front part (12) has two substantially horizontal support rods (9) in addition to rods (16, 17) extending from the shaft (3) of the front wheels (5.6) to the handlebar (20).
A so-called basket-type crib stand composed of (10) is provided, and the supporting rod is a downward rod (21, 22) connected to the crossbar (15) via a joint (23, 24) of the rod (16, 17). And swingably connected.

The rear part (13) consists of two rods (36, 37) attached to and converging from the rear shaft (4) for the wheels (7.8). These are interconnected at an angle and the front connection point (25) has at least one mounting plate (26) which cooperates with the hole (27) of the crossbar (15) and supports the pivot (14) passing therethrough. ) Is provided. The pivot (14) has a position fixing and limiting disc (29) with one or more holes (30) for fixing the rear part (13) in a desired angular position. This function is performed by a pin holder (31) fixed to the crossbar (15) and a pin (32) movable in the holder and cooperating with the hole (30). The disc (29) also has a block (33) that limits the swinging in both rear directions.

According to an alternative embodiment, the rod (21.2)
2) attached to a member (41) which is connected to 2) and has a hole (27) cooperating with the pivot (14).
The front part (12) by the two converging rods (39, 40)
Of the cross bar (15) are constituted.

FIG. 8 shows how the swinging position of the rear part (13) is fixed with the aid of the position fixing / limiting device (28). This device is used to fix the chassis parts (12, 13) in a fixed relative position in situations such as when going down stairs with a stroller or loading a car. The handlebar (20) is provided with a control lever (34) for activating a pin (32) having a function of fixing the rear part (13) to the front part (12) via a wire (35). The pin (32) is biased downward by a spring (38) that can lock the rear portion (13) in a desired angular position according to the position of the control lever (34). Disk (2
9) also includes the aforementioned block (33) that limits the maximum angular position of the rear part (13).

As can be seen from FIGS. 6 and 7, the chassis (2)
Can be folded in a position that requires very little space. This is achieved by a joint between the rods. To minimize the space requirements of the folding position of the chassis (2), the rods (16, 17) can also be provided with joints near the central straight section.

[0012]

The present invention provides a design that satisfies the requirements of use well and that can be manufactured in a simple and low-cost manner.

[0013] The waist turning cart has a chassis composed of two parts, a front part and a rear part, which are relatively rotatable about a substantially vertical axis. When the cart is pushed forward, the rear follows it like a tail. This is very convenient for advancing and manipulating the cart, especially in tight spaces.

In addition, it is more ergonomic than prior art designs, since it does not impose any burden on the operator's back in performing the moments required to change the direction of travel.

[Brief description of the drawings]

FIG. 1 is an overall view of a stroller with a design according to the invention, showing all the elements used for the connection.

FIG. 2 is a front perspective view showing the stroller shown in FIG. 1;

FIG. 3 shows the cart chassis with the wheels removed and the front separated from the rear.

4 is a perspective view of the chassis of FIG. 3 in an assembled state, with wheels mounted and a rear part having a maximum angular position with respect to a front part.

FIG. 5 corresponds to FIG. 4, but shows the rear part at the opposite limit angle position.

FIG. 6 shows a folded state of the chassis shown in FIGS. 4 and 5;

FIG. 7 is a top view of the chassis of FIG. 6;

FIG. 8 is a partial perspective view showing the connection between the rear and the front and the pivot and its fixing and restricting means further enlarged.

FIG. 9 is a perspective view of another embodiment, showing the front of the chassis with wheels removed.

FIG. 10 shows another embodiment of the present invention.

[Explanation of symbols]

 1 Cart 2 Chassis 3, 4 Shaft 5, 6 Front Wheel 7, 8 Rear Wheel 9, 10 Support Lot 11 Cot 12 Front 13 Rear 14 Pivot 15 Crossbar 16, 17 Rod 18, 19 Top 20 Handlebar 21, 22 Downward Rod 23, 24 Joint 25 Connection point 26 Mounting plate 27 Hole 28 Position fixing / restricting device 29 Position fixing / restricting disk 30 Hole 31 Pin holder 32 Pin 33 Block 34 Control lever 35 Wire 36, 37, 39, 40 Converging rod 38 Spring 41 members

Claims (6)

[Claims] An apparatus for a stroller, a shopping cart, etc., comprising a chassis (2) having wheels and supporting a bed, a chair, and a basket-type crib (11), wherein the chassis (2) has a front end. Part (12) and rear part (13)
In order to improve the operability of the cart (1) in a narrow space, the latter (13) is connected to the front (1) via an essentially vertical pivot (14).
An apparatus characterized in that it is swingably connected to (2). 2. At the center of the crossbar (15) where the rear part (13) laterally stabilizes the front part (12) and from the shaft (3) of the front wheel pair (5.6). Via a support lot (9.10) for the basket type crib (11) which extends and is supported at its upper end (18.19) by rods (16.17) interconnected by a handlebar (20) The device according to claim 1, characterized in that the device is pivotally connected. 3. The free end of the basket type crib rod (9.10) is obliquely downwardly directed to the rod (21.2).
The rod (1) at the joint point (23/24) via 2)
6.17), being swingably connected to
An apparatus according to claim 2. 4. At least one mounting plate (26) interconnected at a predetermined angle and supporting the pivot (14) rotatably mounted in the hole (27) of the crossbar (15). The rear part (13) is constituted by two converging rods (36, 37) at point (25) for each rear wheel (7.8) and a shaft (4) interconnecting the rear wheels. Device according to claim 1 or 2, characterized in that: 5. A position fixing / limiting disk (29) provided on the pivot (14) is provided on the crossbar (15).
One or more holes (30) for the purpose of fixing said rear part (13) in a desired angular position with the aid of a pin holder (31) attached to the Device according to claim 4, characterized in that it consists of (30) and cooperating pins (32). 6. The disk (29) is connected to the front part (1).
6. The device according to claim 5, further comprising a block (33) for limiting a maximum angular position of said rear part (13) relative to 2) in both directions.