RU164132U1 - BABY STROLLER WITH SKI MECHANISM - Google Patents

Abstract

A baby carriage with a ski mechanism, including a seat with a backrest, a pusher handle, a carcass and a ski mechanism, the carcass contains front and rear wheel racks, with each wheel strut including left and right supports connected by a jumper, the ski mechanism contains left and right skis, interconnected by connecting elements, and levers, each lever with a lower end being connected via a hinge to a connecting element, and an upper end being connected via a hinge to a jumper; a latch is fixed to the jumper.

Description

The utility model relates to vehicles, in particular to prams, and is intended for movement on snow, sidewalk and ground. This utility model is designed to effectively solve the problem of using a vehicle in a city.

The prior art sled stroller containing a seat and a frame including a handle, skids, as well as front and rear racks connecting the handle with skids. The wheelchair is made with the possibility of transferring from the tobogganing mode to the wheel running mode and vice versa; they contain a motion mode fixing unit and a mechanism of retractable wheeled chassis, including a driving and driven wheeled chassis, interconnected by at least one traction. The driving and driven wheel chassis are rotatable around its axles, namely, the axis of the driving wheel chassis and the axis of the driven wheel chassis, with each axis connecting the left and right halves of the respective strut, namely the rear or front, directly or through an intermediate element (RU 135607, December 20, 2013, IPC V62V 13/18).

The main disadvantages of this device are poor patency and increased vibration resulting from the small diameter of the wheels.

As a prototype, a stroller is selected that is converted for movement on snow, containing a running gear with wheels and a lever control lever with skids fixed to them. Bearing load racks and U-shaped stiffening racks are mounted on the wheel hubs, connecting the wheel hubs equipped with eyes connected by hinges to levers, at the ends of which the runners are rigidly fixed with the possibility of their rotation in a plane perpendicular to the longitudinal axis of the stroller. The rear axle of the stroller is equipped with a mechanism for installing and fixing the runners, consisting of spacers, some ends of which are connected to the said levers, and the other ends are pivotally connected to the lower end of the control handle mounted with the possibility of longitudinal movement in the retainer sleeve, rigidly fixed to the U-shaped cross-member stiffness racks of the rear wheels (RU 2234434, 08/20/2004, IPC V62V 9/04, V62V 13/18, V62V 19/02).

The disadvantages of this design: the inconvenience of operation, due to the fact that when moving under the wheels, the runners scratch their ground ribs with their side ribs, which has irregularities in the form of tubercles, which leads to great resistance to the advancement of the runners. When the runners are removed, all the dirt scraped by them will remain on the upper surface of the runners, then when they rise, the parts of the stroller made of fabric will be contaminated with runners. The high resistance to the advancement of the runners leads to increased wear of the runners and the elements of the mechanism. It is possible to avoid increased wear by reinforcing structural elements, which will lead to an increase in the weight of the stroller.

The problem to which the proposed utility model is directed is to create a design of a baby carriage with a ski mechanism that would eliminate the above disadvantages.

The technical result achieved by the implementation of the presented utility model is:

- improving ease of use;

- to increase the reliability of the device by reducing the wear of parts;

- in reducing the weight of the device.

The technical result is achieved in a pram with a ski mechanism, including a seat with a backrest, a pusher handle, a frame and a ski mechanism. The frame contains front and rear wheel struts, with each wheel strut including left and right bearings connected by a jumper. The ski mechanism contains left and right skis, interconnected by connecting elements, and levers. Each lever with its lower end is connected to the connecting element by means of a hinge, and the upper end by means of a hinge is connected to a jumper. A position lock is attached to the jumper.

The specified technical result in the proposed utility model is achieved due to the vertical lowering of the skis, while excluding: the need for the skis to overcome the resistance exerted by the ground when lowering the skis; contamination of the parts of the stroller from skis.

The essence of the utility model is illustrated by drawings, where in FIG. 1 shows a side view of a baby carriage with a ski mechanism in wheel mode; in FIG. 2 shows a side view of a baby carriage with a ski mechanism in sledding mode; in FIG. 3 is a rear view of a baby carriage with a ski mechanism in sledding mode; in FIG. 4 - skis connected by connecting elements; in FIG. 5 - position lock in sled mode.

Accepted designations:

1 - seat;

2 - back;

3 - pusher handle;

4 - frame;

5 - ski gear;

6 - a front rack of wheels;

7 - a back rack of wheels;

8 - the left support of a forward rack of wheels;

9 - the left support of a back rack of wheels;

10 - the right support of a forward rack of wheels;

11 - the right support of a back rack of wheels;

12 - jumper of the front wheel strut;

13 - jumper rear wheel strut;

14 - left ski;

15 - right ski;

16 - connecting elements;

17 - levers;

18, 19 - hinges;

20 - position lock;

21 - position lock lever;

22, 23 - wheel axles;

24 - wheels;

25 - a step;

26 - groove;

27 - response element position lock.

The baby carriage (Fig. 1-4) includes a seat 1 with a back 2, a pusher handle 3, a frame 4 and a ski mechanism 5. The frame 4 contains a front 6 (Fig. 1, 2) and a rear 7 (Fig. 1, 2, 3) wheel struts, with each wheel strut 6, 7 includes left 8 (not shown in the drawing), 9 (Fig. 3) and right 10 (not shown in the drawing), 11 (Fig. 3) supports connected by a jumper 12 (not shown in the drawing), 13 (Fig. 3). The ski mechanism 5 contains the left 14 and right 15 skis, interconnected by connecting elements 16 (Fig. 4), and levers 17 (Fig. 3). Each lever 17 with a lower end by means of a hinge 18 is connected to a connecting element 16, and an upper end by means of a hinge 19 is connected with a jumper 12/13 (Fig. 3). On the jumper 13 is fixed position lock 20 (Fig. 3).

Execution example

The levers 17, jumpers 12, 13 and connecting elements 16 are made of thin-walled pipes or formed of strip metal. Skis 14, 15 can be made of plastic or thin-walled pipes or molded from strip metal.

The length of the levers 17 is chosen so that in the position of the wheel stroke the upper surface of the skis 14, 15 touches the bottom of the wheel axles 22, 23, and in the position of the sledge stroke of the wheel 24 were raised above the ground to a height of 25 mm.

The retainer 20 is attached to the jumper 13 (Fig. 3) and is made in the form of a lever 21 of the retainer 20 with a groove 26, which includes the mating element 27 of the retainer 20, attached to the lever 17 (Fig. 5).

For the manufacture of strollers can be used wheels 24 with a diameter of 200 mm of any kind, currently installed on baby strollers.

To ensure the minimum protrusion of the ends of the skis 14, 15 in the front and rear parts of the stroller, both in wheel mode and in sled mode, the angles of rotation of the levers 17 (their extreme positions) relative to an imaginary horizontal line passing through the hinges 19 should be the same or similar in value.

The device operates as follows (when stopping the movement of the stroller):

To transfer the stroller to the sledding mode, you must press with your foot on the lever 21 of the position lock 20 (Fig. 5), while the ski mechanism 5, under the action of gravity, will go down until the skis touch 14, 15 of the ground. After this, it is necessary, by pressing the foot on the footboard 25 (Fig. 2, 5), to raise the stroller by the pushrod handle 3 until the position lock 20 (Fig. 3) is activated, which fixes and reliably holds the stroller in the position of the sled ride.

To return the stroller to the wheel position, you must press the lever 21 of the position lock 20 (Fig. 5), then you need to simultaneously hold the stroller by the pusher handle 3 and with your foot press the footboard 25 (Fig. 2, 5), while the stroller will lower until the wheels touch 24 of the earth. After that, it is necessary to lift the ski mechanism 5 upward, touching the bottom of the footboard 25 with your foot (Figs. 2, 5), until the position lock 20 is activated, holding the ski mechanism 5 in the upper position.

Claims (1)

A baby carriage with a ski mechanism, including a seat with a backrest, a pusher handle, a carcass and a ski mechanism, the carcass contains front and rear wheel racks, with each wheel strut including left and right supports connected by a jumper, the ski mechanism contains left and right skis, interconnected by connecting elements, and levers, each lever with a lower end being connected via a hinge to a connecting element, and an upper end being connected via a hinge to a jumper; a latch is fixed to the jumper.

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