RU143037U1 - BICYCLE - Google Patents

Abstract

A bicycle containing a longitudinal supporting frame on which a steering fork is mounted on one side with a front wheel kinematically connected to the axes of the pedals of rotation, and on the opposite side, a bridge with rear wheels symmetrically placed at its ends, the front fork is connected to the handlebars located symmetrically, the frame is equipped with a seat and an inclined shaft with a loop-shaped handle, characterized in that the front wheel is connected to the axles of the pedals using a switchable freewheel, the steering fork is equipped with a otnymi footrests, and the handle for pushing mounted to permutations and fixing along a rod connected via bushings to the frame and to the bridge of the rear wheels at their interface, wherein the seat is mounted for rotation and permutation on rame.2. A bicycle according to claim 1, characterized in that the rod of the pushing handle is made in the form of a metal telescopic rod, and the handle is made with a loop-shaped part bent at an obtuse angle. 3. Bike according to any one of paragraphs. 1 and 2, characterized in that the rotary steps are made in the form of sectors of the circle and are attached radially to the steering fork above the axles of the pedals with the possibility of installation in positions along the frame or above the pedals. 4. Bike according to any one of paragraphs. 1 and 2, characterized in that the seat is mounted on the frame with the possibility of rearrangement at an angle of up to 180 ° and is equipped with a removable back with a seat belt. 5. Bike according to any one of paragraphs. 1 and 2, characterized in that the seat is equipped with a swivel removable backrest, a movable and swivel removable canopy (for example, a hood) and a safety barrier. 6. Bike according to any one of paragraphs. 1 and 2, from

Description

The utility model relates to cycling, in particular, to tricycles for children with a muscular drive, suitable mainly for children from 6 months to 5 years.

Known tricycle containing a supporting frame, a front driving steered wheel, two rear wheels, a steering wheel, a pedal drive and a transmission of the front driving wheel (RU No. 2087367).

The disadvantages of this bike are low stability, inconvenience when moving adults.

Known tricycle suitable for moving by adults, containing a longitudinal bearing frame, on which on one side there is a front fork with a front wheel kinematically connected with the axes of the pedals of rotation, and on the opposite side, a rear fork with rear wheels symmetrically placed at its ends, the front the fork is connected to the handlebars located symmetrically; a saddle and a loop-shaped handle for pushing the bike are mounted on the frame. It introduced a curved downward arch-shaped lower support, movably connected to the body with the possibility of being located under the frames, making contact with the ground and supporting the bicycle body, as well as moving from the position under the body to support it with wheels (RU No. 2159719, prototype).

The disadvantages of this bike are the complexity of the construction of connecting the composite frame to the pushing handle and the high resistance to movement by adults due to the remoteness of the place of transfer of effort to the pushing handle on the frame and the possibility of braking the child’s movement when acting on the pedals, which prevents the elderly from using the bicycle as a strollers for a child.

The technical task of the utility model is to create an effective bike and expand the arsenal of tricycles.

The technical result, which provides a solution to the problem, is to increase the reliability and, therefore, the safety of the operation of a children's bicycle by reducing the necessary efforts for external control and eliminating braking or excessive acceleration by pedals.

At the same time, there is a decrease in efforts for external control of the bicycle due to the optimal place of application of force to the bicycle frame, the exclusion of braking or excessive acceleration by pedals, the convenience of positioning the loop-like part at a height corresponding to the growth of the pushing face.

The essence of the utility model consists in the fact that the bicycle contains a longitudinal bearing frame, on which, on the one hand, there is a steering fork with a front wheel kinematically connected with the axes of the rotation pedals, and on the opposite side, a bridge with rear wheels symmetrically placed at its ends, the front fork connected with the steering knobs symmetrically mounted, a seat and an inclined shaft with a loop-shaped handle are installed on the frame, characterized in that the front wheel is connected to the axes of the pedals using a switchable clutch free-wheeling, the steering fork is equipped with swivel footrests, and the pushing handle is mounted with the possibility of shifting and fixing along the rod connected with the sleeve to the frame and to the rear wheel axle in the place of their mating, while the seat is mounted with the possibility of shifting and turning on the frame.

Preferably, the rod of the pushing handle is made in the form of a metal telescopic rod, and the handle is made with a loop-shaped part bent at an obtuse angle, the rotary steps are made in the form of circle sectors and are mounted radially to the steering fork above the axles of the pedals with the possibility of installation in positions along the frame or above the pedals , the seat is mounted on a frame with the possibility of shifting to an angle of up to 180 ° and is equipped with a removable back with a seat belt, the seat is equipped with a swivel removable back, a movable and swivel With a canopy (for example, a hood) and a safety barrier, the freewheel is made with a plastic element that can be switched on the pedal axis for manual closing / opening.

In addition, the bike is equipped with a hanging luggage basket located between the rear wheels, and its frame is made of carbon fiber.

In the drawing of figure 1 shows a bicycle at an angle to the right (in a three-dimensional (axonometric projection), figure 2 shows a bicycle at an angle to the left (in a three-dimensional (axonometric projection), figure 3 is a schematic view of a bicycle to the right, figure 4 - the installation site of the plug with the pedals, in Fig.5 - the plug, in Fig.6 - the installation of the pedals, in Fig. 7 - the installation site of the footboard, in Fig. 8 - view from the side of the luggage basket.

The bicycle contains a longitudinal bearing frame 1, on which on one side there is a front steering fork 2 with a front wheel 3 of a larger diameter kinematically connected with the metal axes of the rotation pedals 4, and on the opposite side, a bridge 5 with rear wheels 6 symmetrically placed at its ends, 7 smaller diameter. The front fork 2 is connected with the symmetrically rubberized handles 8, 9 of the steering wheel. On the frame 1 there is a seat (saddle) 10 with runners and a rod 15 with a loop-shaped parent handle 11 for pushing (turning and controlling) the bicycle. The rod 15 and the handle 11 are made with a protective sheath. The seat 10 is made with runners and is designed to be installed and fixed in any of 8 positions closer or further from the handlebars 8, 9. The front wheel 3 is connected to the axes of the pedals 4 using a switchable freewheel with a movable plastic element (plastic disc) 12. Bicycle (steering fork 2) is equipped with rotary steps (hinged wings) 13, 14 located above (above) the pedals 4, and the handle 11 is mounted with the possibility of shifting and fixing along the telescopic rod 15, connected with the sleeve 16 to the frame 1 and to the bridge 5 in me If the sleeve 16 of the frame 1 and the axle 5 of the rear wheels 6, 7 are interfaced, shock absorbers (not shown) are installed on the rear wheels 6, 7, which ensure a smooth ride.

The rod 15 of the handle 11 is made in the form of a metal telescopic rod, and the handle 11 is made with a loop-shaped part bent at an obtuse angle.

The rotary steps 13, 14 are made in the form of circle sectors and are mounted radially to the steering fork 2 above the axles of the pedals 4 with the possibility of installation in the inoperative position along the frame 1, or in the position for supporting the child’s legs above the pedals 3, 4.

The seat 10 is mounted on the frame 11 with the possibility of rearrangement along the frame 1 and rotated through an angle of up to 180 ° (i.e., against the movement), and can be equipped with a removable backrest 19 with a safety belt (not indicated).

In other implementations, the seat 10 is provided with a removable backrest 19, a removable canopy (for example, a roof or a hood) 17 and a safety barrier (not indicated).

The freewheel is made with at least one plastic element 12 in the form of a hollow step sleeve that can be switched on the axis of the pedals 4, with the possibility of manually closing / opening the coupling.

The bicycle can be equipped with a hanging luggage basket (bag) 18, located between the rear wheels 6, 7.

Wheels 3, 6, 7 are made of inflatable or impenetrable cast and equipped with wings (not marked).

For the production of this bike, carbon fiber is used as the material of the frame 1 and bridge 5. Carbon fiber is a light and durable material made of interwoven carbon fiber strands located in a matrix of polymer (e.g., epoxy) resins. By its strength, such a material is not inferior to many metals, by weight it is 40% lighter than steel and 20% lighter than aluminum. As a rule, carbon fiber parts are superior in strength to steel and fiberglass parts.

Bicycle dimensions:

- Length: 88 cm / 135 cm / 128 cm (with three different positions of the handle 11),

- The width of the rear wheels 6, 7: 53 cm,

- The height of the handle 11 on the shaft 15: 95 cm / 87 cm,

- Height from the earth to a seat 10: 37 cm,

- Height from the earth to the handles 8, 9 steering: 58 cm,

- weight: 11 kg

The bike is operated as follows.

The bicycle is delivered to the consumer unassembled. Assembling a bicycle is done manually as follows.

The pedals 4 are mounted on the front wheel 3. To do this, put on the plastic elements 12 on the axis of the pedals 4, on one axis - a large element 12, on the other axis - a smaller one. They provide the “free wheel” function, that is, closing and opening the freewheel. With a little effort, you can pull out the element 12 along the axis to the pedal or put back. Thus, the pedals 4 are fixed and the child can ride a bicycle, or you can give them free play and the child can turn the pedals 4 when an adult controls the bicycle by the handle 11. The 4 pedals are attached with screws. The fork 2 is connected to the front wheel. To do this, the plug 2 is inserted into plastic triangles (not marked) on the metal axes with pedals 4. The steps 13, 14 are mounted on the fork 2. The steering wheel with rubberized handles 8, 9 and the steps 13, 14 are fixed with screws. On both sides of the frame 1, the rear wheels 6, 7 are mounted on the bridge 5 and the basket (bag) 18. The seat 10 is mounted on the frame 1 by the runners by pressing the buttons under the seat 10, it can be rotated to the position face forward or face back.

The telescopic rod 15 is assembled in three parts and is connected using a sleeve (connecting unit) 16 at the place where the sleeve 16 of the frame 1 and the axle 5 of the rear wheels 6, 7 interface with it. The sleeve 16 has a button for removing the rod 15 with the handle 11. Then, a removable can be mounted a backrest 19, a removable canopy (for example, a roof or a hood) 17 and a safety barrier (not indicated).

With free riding, the child holds hands on the handles 8, 9 of the steering wheel, and acts on the pedals 4, as a result of which the wheel 3 is rotated and, being the driving wheel, provides movement of the driven wheels 6, 7 and the bicycle as a whole. In the basket 18 can be put toys and other accessories for a walk. Using handle 11, an adult walking behind can adjust the trajectory and speed of movement, avoiding emergency situations, especially on slippery roads, while helping to overcome curbs and at the same time turn the bike to the right and left. In order for the adult to completely control (push) the handle 11 (like a stroller), the element (s) 12 are moved from the fork 2 to the pedals 4. In this case, the freewheel disconnects the kinematic connection between pedals 4 and wheel 3, which becomes a slave. At this time, it is advisable to put the child’s legs on the steps 13, 14, (the child can turn them into a horizontal position independently), ensuring a stable and safe position of the legs, while he does not expend energy (does not get tired) and does not affect the movement of the bicycle. Hood 17 will cover the child t the sun and rain, a removable barrier will help keep the child in place.

In this technical solution, the seat 10, turning 360 degrees - "facing the road" and "facing the mother" will allow troubled parents to always do after their kids. As a result, parents do not need to constantly stop and check what the child is doing there. This is also implemented in the stroller mode. Therefore, the function of an overturning seat is provided, - the seat moves along the runners. The seat 10 has 8 fixed positions on the skids (rails) along the frame 1. In this way, the seat 10 can be changed (removed from the steering wheel or pulled to the steering wheel) as the child’s foot grows. The backrest 19 of the seat 10 reclines to a horizontal position by pressing a button on the back of the backrest 19 of the bicycle. The shock absorbers of the rear wheels 6, 7 create a smooth ride, smooth out all the bumps in the roads. Thanks to the shock absorbers of the wheels 6, 7, the child can swing and even jump on the seat 10.

The child can put his feet on the steps 13, 14 and gets used to this position, and then, when he is ready to pedal 4, he simply rearranges (steps) the steps 13, 14 into an upright position, puts the legs on pedals 4 and starts to control the bicycle. The height of the handle 11 is easily changed in height by pressing with 2 fingers and moving along the height of the rod 15. The hood 17 is mounted on metal tubes and moves 360 degrees. The rod 15 of the handle 11 is easily and simply (until clicked) inserted into the sleeve 16, the forces necessary to rotate the bicycle and / or move by pushing due to the optimal angle of inclination and the place of application of force through the handle 11 and the rod 15 to the frame 1 are reduced (minimized) bicycle, braking or excessive accidental acceleration by pedals 4 are excluded, the loop-shaped part (handle) 11 is conveniently located at a height corresponding to the height of the control (pushing) person. Thereby, an increase in the reliability and, therefore, safety of the operation of the children's bicycle is achieved by reducing the necessary efforts for external control and eliminating braking or excessive acceleration by pedals.

The decrease in the necessary efforts for external control is manifested in the interconnection of eliminating harmful force from braking or excessive acceleration by pedals, since it is braking or excessive acceleration by pedals (in the absence of a switchable clutch and rotary steps) that would inevitably counteract the external control of the handle and create the conditions for emergency situations .

All this together ensures the creation of an attractive, in its capabilities and operational characteristics, ergonomic, efficient, safe and convenient children's bike.

Claims (8)

A bicycle containing a longitudinal supporting frame on which a steering fork is mounted on one side with a front wheel kinematically connected to the axes of the pedals of rotation, and on the opposite side, a bridge with rear wheels symmetrically placed at its ends, the front fork is connected to the handlebars located symmetrically, the frame is equipped with a seat and an inclined shaft with a loop-shaped handle, characterized in that the front wheel is connected to the axles of the pedals using a switchable freewheel, the steering fork is equipped with a otnymi footrests, and the handle for pushing mounted to permutations and fixing along a rod connected via bushings to the frame and to the rear wheel bridge at their interface, while the seat is mounted for rotation and permutation of the frame. 2. A bicycle according to claim 1, characterized in that the rod of the pushing handle is made in the form of a metal telescopic rod, and the handle is made with a loop-shaped part bent at an obtuse angle. 3. Bicycle according to any one of paragraphs. 1 and 2, characterized in that the rotary steps are made in the form of sectors of a circle and are attached radially to the steering fork above the axles of the pedals with the possibility of installation in positions along the frame or above the pedals. 4. Bicycle according to any one of paragraphs. 1 and 2, characterized in that the seat is mounted on the frame with the possibility of rearrangement at an angle of up to 180 ° and is equipped with a removable back with a seat belt. 5. Bicycle according to any one of paragraphs. 1 and 2, characterized in that the seat is equipped with a swivel removable backrest, a movable and swivel removable canopy (for example, a hood) and a safety barrier. 6. Bicycle according to any one of paragraphs. 1 and 2, characterized in that the freewheel is made with a plastic element rearranged on the axis of the pedal for manually closing / opening it. 7. Bicycle according to any one of paragraphs. 1 and 2, characterized in that it is equipped with a hanging luggage basket located between the rear wheels. 8. Bicycle according to any one of paragraphs. 1 and 2, characterized in that its frame is made of carbon fiber.