WO2016159821A1

WO2016159821A1 - Bicycle

Info

Publication number: WO2016159821A1
Application number: PCT/RU2015/000717
Authority: WO
Inventors: Александр Геннадьевич НЮРКИН
Original assignee: Александр Геннадьевич НЮРКИН
Priority date: 2015-03-27
Filing date: 2015-10-29
Publication date: 2016-10-06

Abstract

The device relates to bicycles and can be used for producing bicycles with a large range of variation in handlebar height. The technical result of this solution is the possibility of adjusting the handlebar height within a large range, the possibility of changing the handlebar height with a simpler and more rapid method without the use of locking clamps, the possibility of placing wires and cables for the brakes entirely inside the frame cavity up to the handlebar grips, the possibility of mounting a shock absorber at the base of the steerable-wheel fork and of simplifying the shock absorption, and the possibility of more easily controlling the handlebars. The technical result mentioned is achieved by the fact that a bicycle is claimed, comprising a frame, wheels, a seat, handlebars, a steerable-wheel fork, a gear reduction connection of the front-wheel handlebar hub to the fork hub, said gear reduction connection transmitting the handlebar torque to the steerable-wheel fork, characterized in that the transmission of the handlebar torque to the steerable-wheel fork is realized via a system of gearwheels, and the shaft of the steerable-wheel fork is placed into part of the cavity of the frame arm which is formed at an angle in relation to the axis of the steering tube.

Description

BICYCLE

DESCRIPTION

The device relates to bicycles and can be used to create bicycles with a large range of changes in the height of the steering wheel.

Known folding bike (RU108405U, publ. 09/20/2011), including a frame, a steering wheel connected to a steering wheel extension, front and rear forks of the front and rear wheels, a seat, pedals, a chain transmission connecting the pedals to the rear wheel, and the carriage assembly, characterized in that the frame is made of

fixed and movable parts, while the movable part contains a traverse and a tightening pipe, connected at one end through the rotation sleeves of the head bracket to the steering wheel and front wheel fork, the other end of the tightening pipe through the rotation sleeves of the support bracket, the lower and middle pipes, as well as the support of the cross beam on the seat tube connected to the fixed part of the frame through the support tube and the rear fork pipe with the rear wheel fork.

A bicycle is known (RU2391244, published: 06/10/2010), including a frame with a seat mounted on a rear drive wheel and a front swivel wheel, the sleeve of which is equipped with a bearing mounted on an axis with a through hole, which is fixed in a rotary fork, the axis of which is fixed in the bearings the frame and is equipped with a steering wheel at the end, while a shaft with connecting rods and pedals at the ends is attached to the frame in the bearings so that the shaft passes through the hole of the wheel axis, while the shaft is connected by a chain transmission and a freewheel with rear rotation of a wheel, characterized in that the fork is provided with two feathers covering the wheel on both sides, one feather of which is attached with a detachable connection, for example a screw, to a nut screwed onto the axle with a hole, and the other feather of the fork is attached with a detachable connection, for example a screw, to the eye with a hole thrown on an axis with a hole and having a shoulder at the end, while the nut presses the bearing mounted on the axis with the hole to the eye and through it to the shoulder at the end of the axis. Known (RU2264945, publ. 11/27/2005) UNIVERSAL FOLDING BIKE. The front and rear wheels, cantilever mounted on one side on the swinging levers, in the folded state of the bicycle are located opposite each other. To do this, when folding, disconnect the front suspension from the front pillar, and the rear suspension is disconnected from the end of the frame. Then the front swing arm with the front wheel is rotated relative to the hinge on the front strut to the center of the frame. Then the rear swing arm with the rear wheel is rotated relative to the central assembly to the center of the frame. Freely adjustable steering wheel and seat also have the ability to fold. The technical solution is aimed at ensuring the size of the folded bicycle corresponding to a square with sides equal to the diameter of the wheels.

The closest analogue is Japanese application JP2007091198 (publ. 2007). It claims a bicycle containing a frame, seat, steering wheel, steering wheel plug, gear connection of the front wheel rudder bush to the plug hub, transmitting the moment of rotation of the steering wheel to the steering wheel fork.

The difference from the prototype is that the reducer connection of the front wheel rudder bush with the forks of the fork used in it is straight (i.e. parallel) and does not fulfill those functions and does not solve the tasks that are implemented in the claimed utility model.

The disadvantage of the prototype and all known solutions are:

lack of adjustment in a wide range of heights at the helm;

- the inability to change the height of the steering wheel in a simpler and faster way without the use of locking clamps;

- the inability to lay wires and cables for the brakes completely inside the cavity of the frame up to the handles of the steering wheel;

- the inability to install a shock absorber on the base of the steering wheel plug;

- lack of ability to simplify depreciation of the steering wheel;

lack of the possibility of easier steering control.

The objective of the invention is to eliminate the disadvantages inherent in the known decisions.

The technical result of this solution is the ability to adjust the height of the steering wheel in a wide range, the ability to change the height of the steering wheel in a simpler and faster way without the use of locking clamps, the ability to lay wires and cables for the brakes completely inside the cavity of the frame up to the handles of the steering wheel, the ability to install a shock absorber on the base of the steering fork wheels and simplify cushioning, the possibility of easier steering.

The specified technical result is achieved due to the fact that the claimed bicycle, containing the frame, wheels, seat, steering wheel, steering wheel plug, gear connection of the front wheel steering sleeve with the plug of the wheel, transmitting the moment of rotation of the steering wheel to the steering wheel fork, characterized in that the transmission of torque rotation of the steering wheel on the steering wheel fork is made through a system of gears, and the steering wheel fork shaft abuts against a part of the frame exhaust cavity, which is made at an angle with respect to the axis of the steering shaft.

Preferably, the axis of the fork shaft and the steering gears are not parallel to the axis of rotation of the steering wheel.

Preferably, the frame retraction, which serves as an abutment for the steering wheel fork, is horizontal and the cavity where the steering shaft of the steering wheel abuts is located vertically, the transmission of the moment of rotation of the steering wheel to the steering wheel fork is made through gears mounted on the steering shaft and the steering shaft shaft, between which the intermediate gear is located.

Preferably, the steering shaft is made up of telescopic pipes in which holes are made to fix the level of the height of the extension of the pipes by means of a stud.

Preferably, bevel gears are used as gears. Brief Description of the Drawings

Figure 1 shows an example of a bicycle, where the shaft of the steering wheel forks abuts against part of the cavity of the exhaust frame, which is made at an angle with respect to the axis of the steering shaft. Figure 2 shows the same bike as in Figure 1, but a sectional view.

Fig. 3 shows an example of a bicycle where the frame retraction, which serves as a stop for the steering wheel fork, is made horizontally, and the cavity where the shaft of the steering wheel fork abuts is located vertically.

Figure 4 shows the same bike as in Figure 3, but a sectional view.

Figure 5 shows the principle of possible folding of the telescopic steering wheel.

The bicycle has wheels 1, a supporting frame 4 and a seat 7. The seat 7 is preferably performed using seatposts 5 or telescopic tubes in order to possibly adjust the height of the seat in a wide range. It is rational to do this on the basis that the gear 2 with pedals 3 is always in the same zone with respect to the user's body, when the steering wheel and seat are altered simultaneously. The connection of the pipes 5 is possible by means of the locking collars 6. However, the adjustment of the seat height is not the subject of protection of this decision. The basis of the solution is a new principle of the design of the steering wheel, where the steering wheel plug 11 has a gearbox connecting the front wheel rudder bush to the plug hub, transmitting the moment of rotation of the steering wheel to the steering wheel fork.

The novelty of the solution is that the moment of rotation of the steering wheel 12 to the steering wheel plug 11 is transmitted through the gear system 19, 20. As the gears, for example, bevel gears can be used. The axis of the shaft of the plug 11 and

gears 19 of the steering wheel are located not parallel to the axis of rotation of the steering wheel, but at an angle to it. The shaft of the steering wheel plug 11 abuts against a portion of the frame exhaust cavity, which is also made at an angle with respect to the axis of the steering shaft. Another emphasis of the fork shaft is a gear 20 in contact with the steering wheel shaft gear 19.

This design allows you to adjust the height of the steering wheel in a wide range, since the height of the sleeves 16, 17, 18 of the steering wheel 12 is not limited, as in the known solutions, to the plug 11. Since the plug 11 has its own separate socket, in which the plug’s axis is located under another angle than the axis of the steering shaft 8, the sleeve 16, 17, 18 of the steering wheel rests only on the base of the frame 4 and can have a large range of heights at which you can extend the steering wheel from the frame. For example, see Figure 5 - minimum rudder height and see. Fig. 1 - average rudder height. With the maximum extension of the steering wheel from the frame, the locking pins are inserted into the holes 9 (as in FIG. 2) on the steering bushes.

Also, the claimed solution allows you to change the height of the steering wheel in a simpler and faster way without the use of locking clamps, since a rigid clamp connection of the shaft of the steering wheel 8 and the shaft of the yoke 11 is not required, which was first required to be loosened with a key, then pulled out or inserted deep into the steering tube and again secured with a key to the clamp. Thus, the steering shaft can be made, for example, consisting of telescopic pipes 16, 17, 18, in which holes 9 are made to fix the level of the height of the extension of the pipes by means of the pin 10. And to change the level of the height of the steering wheel it is enough to pull the pin, change the height of the steering wheel to new matching holes and insert it again. There are other options for changing the height of the steering wheel (screw and hydraulic - not shown in the drawings, because they are not the subject of protection of this solution).

Also, the claimed solution allows you to lay the wires and cables for the brakes completely inside the cavity of the frame up to the handles of the steering wheel. If in the solutions known today in technology, all the wires are from the steering pipe to the steering knobs from the outside, then due to the fact that in the claimed solution, the plug 11 now does not block the path in the cavity of the frame 4 when moving into the steering pipe, the cavity inside the frame 4 is continuous up to handles of the steering wheel 12. From FIG. 2, the arrangement inside the cavity of the frame, the steering wheel tubes of the cable 13 for the rear brake 15. For comparison, in FIG. 1, the cable 13 sticks out only at the brake 15 and at the brake handle 14, which is mounted on the steering wheel 12.

Usually, shock absorbers are placed on the steering wheel plug 11 on the sides of the fork and so that the fork height has a power reserve of the shock absorber so that the tire does not touch the base of the fork during depreciation. This creates the inconvenience of a short range of changing the height of the steering wheel due to the high fork. In the claimed solution, this problem is absent, and it is possible to install a shock absorber on the steering wheel plug in the zone of its base, and not on the sides. This makes it possible to limit oneself to one shock absorber, and not two, and does not require an increase in the fork height, since the wheel itself will be amortized with the fork.

Also, the claimed solution allows for easier steering. It may to be realized, for example, by using hydraulic steering traction amplifiers (to enhance the transmission of torque from the steering wheel to the fork through gears), similar to how they are used in cars (not shown in the drawings). Or easier steering is realized due to the fact that the frame retraction, which serves as a stop for the steering wheel fork, is performed horizontally. In this case, the cavity where the steering wheel fork shaft abuts is placed vertically. An example of such a construction is shown in Fig.Z. The transmission of the moment of rotation of the steering wheel to the steering wheel fork can be performed through gears 19, 20,

mounted on the steering shaft and steering shaft forks of the steering wheel, between which

an intermediate gear 21 is located (see Figure 4). Lighter steering in this version of the retraction is ensured by the fact that the wheel itself and the fork rotate almost along the vertical axis. In the bikes known in the art, the axis of the steering wheel fork rotates along an axis deviated from the vertical vertical line by a certain angle (otherwise the wheel will touch the frame). As a result, the front wheel creates a mass load from the frame, forming an additional resistance force in a different vector, plus the earth's surface resistance. There is a parallelogram of the addition of forces. In the stated decision, the direction of the vectors of these forces coincides and therefore their forces do not add up. As a result, the resistance in this position of the fork and wheel when turning the steering wheel is less.

Claims

FORMULA

1. A bicycle comprising a frame, wheels, a seat, a steering wheel, a steering wheel plug, a gear connection of the front wheel rudder bush to the plug hub, transmitting the moment of rotation of the steering wheel to the steering wheel fork, characterized in that the transmission of the moment of rotation of the steering wheel to the steering wheel fork is made through system of gears, and the shaft of the fork of the steering wheel abuts against part of the cavity of the exhaust frame, which is made at an angle with respect to the axis of the steering shaft.

2. The bicycle according to claim 1, characterized in that the axis of the fork shaft and the steering gears are not parallel to the axis of rotation of the steering wheel.

3. The bicycle according to claim 1 or claim 2, characterized in that the frame retraction, which serves as a stop for the steering wheel fork, is made horizontally, and the cavity where the steering wheel fork shaft abuts is located vertically, and the transmission of the moment of rotation of the steering wheel to the steering wheel fork is made through the gears

mounted on the steering shaft and steering shaft forks of the steering wheel, between which the intermediate gear is located.

4. The bicycle according to claim 1 or claim 2, characterized in that the steering shaft is made

consisting of telescopic pipes in which holes are made to fix the level of the height of the extension of the pipes through the studs.

5. The bicycle according to claim 1 or claim 2, characterized in that as gears

bevel gears used.