GB2523072A

GB2523072A - A variable output speed system unit

Info

Publication number: GB2523072A
Application number: GB1321459.8A
Authority: GB
Inventors: Roger John Vowles
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-05
Filing date: 2013-12-05
Publication date: 2015-08-19
Anticipated expiration: 2033-12-05
Also published as: GB201321459D0; GB2523072B

Abstract

A variable output speed system unit includes a rotatable input crank 1, having a controllable, movable pivot 2, the pivot engaging an arm 3, the arm holding one side of the one-way gears 4 another side of the one-way gears held by a fixed gear 6. When the crank rotates and the pivot 2 is moved towards or away from the cranks axis 7, the arm output rotation speed will change compared with the input crank speed. The pivot 2 is moved by a manual or automatic control system which may include a lever arm (19, fig 11) that moves a ring gear (20) along a recess (22) causing rotation of a control shaft 23 which, in turn, rotates pivot gear 26 that is engaged with and moves a straight pivot gear plate 26, thus altering a position of the pivot 2. The one-way gears 4 turn at least one gear which can rotate about an axis and may be an output drive.

Description

I

Variable output speed system unit

Background

This invention relates to a variable speed gear system. A conventional gear system has a number of fixed gears and ratios with gaps between the ratios sometimes requiring a clutch system to change between the different gears making it inefficient and limited in its output speed range. To overcome these limitations the present invention proposes a variable output speed system in relation to its input speed.

Description

The invention will now be described by way of example and with reference to the accompanying drawings in which: Figure 1 shows a rotatable input crank having a controllable pivot, arm, one-way gears, and fixed gear, Figure 2 shows a side view of figure 1, Figure 3 shows a rotary stabilising system for the output arm or arms, Figure 4 shows a rotary stabilising system after the arms have rotated, Figure 5 shows the controllable movable pivot in a possible position in relation to the crank axis, Figure 6 shows the pivot in a neutral no output drive position, Figure 7 shows a second set of on-way gears for driving a rotatable output gear, Figure 8 shows a side view of figure 7, Figure 9 shows sliding self adjusting arms Figure 10 shows hinged self adjusting arms Figure 11 shows a possible control system for the pivot, Figure 12 shows a movement cycle before and after the crank has turned two revolutions showing the arms moving a quarter of a revolution.

Figure 1 shows a rotatable input crank 1, having a controllable, movable pivot 2, the pivot engaging one or more arms or arm 3, each arm straddling the pivot theses arms or arm holding a one-way gear or a one-way assembly4, working in the same direction on both ends of the arm or arms straddling the pivot. The one-way gear or one-way assembly being allowed to slide or move along the arm but still holding one side of the one-way gear or one-way assembly to prevent turning 5,.

The other side of the one-way gear or one-way assembly being held by a stationary gear or gears 6,on a fixed base 10, when the crank rotates around its axis 7, the pivot moves the arm or arms this will have the effect of moving the one-way gear or one-way assembly nearest to the pivot 8, while the one-way gear or one-way assembly on the other end of the arm 9, will remain stationary unable to move or turn being unable to turn against the rotation of crank 1, but might still be able to turn or move with the rotation of the crank in a overrun situation that is when the output drive is faster than the input drive this might happen during some situations. The effect will carry on a until the pivot becomes closer to the stationery one-way gear or one-way assembly, than to the moving one way-gear or one-way assembly which will have the effect of releasing the stationery one-way gear or one-way assembly and holding the moving or turning one-way gear or one-way assembly creating a rotating cycle with the arm or arms around the pivot axis this rotation may be used as a output drive and if required using a universal joint, or similar device or devices including a stabilising system.

Figure 2 shows a side view of figure 1, Figure 3 shows a stabilising system, having fixed rotatable fixed points on the arms or arm 11, and rotatable fixed points on a output gear 12, also showing rotatable points 13, and connecting rods 14, Figure 4 shows the same arrangement after the arms or arm have moved from the central axis of the crank after the pivot has been moved, this arrangement can be used for a output drive or -holding the arms or arm when a different output position is used.

Figure 5 shows The controllable, movable pivot 2, that will alter the output rotation speed in relation to the input rotation speed when moved by any means towards or away from the crank axis 7, when a satisfactory output speed is achieved the pivot may be left in position.

Figure 6 shows a neutral or no output drive situation, this can be obtained by moving the pivot 2;to the centre axis of the crank 7, a reverse direction to the output drive may also be achieved by switching or enabling the one-way gears or one-way assembly to work in the opposite direction. The input drive, output drive, stationaly or fixed gear, or other, may be changed or swopped around in any working configuration to change their use or role allowing for different Requirements and design options.

Figure 7 shows A second set of one-way gears or one-way assembly's 15, working in the opposite direction as the first set and may be fitted to the arm or arms in a similar way to the first gears or assembly's these may be used to drive a second rotatable gear 16, driven from the same side as the first one-way gears or one-way assembly this second gear now becomes the output drive making a rotational movement around its axis or crank axis. The rotating direction of the second one-way gears or one-way assembly and its connection side to the second gear or gears may be changed to any place or configuration. When more than one arm is used or fitted it may be held by the first arm or work independently or with limited movement.

Figure 8 shows a side view of figure 7.

Figure 9 shows the arm or arms iength or the length between the one way gears or one way mechanisms may be self adjusting by a sliding mechanism 17, or mechanisms.

Figure 10 shows a hinge mechanism 18, fitted to the arms or arm these may be of any number or type or by any other means so to allow the one-way gears or one-way mechanism to stay connected to the stationery gear and to limit the length of the arm or arms. The pivot and one-way gear or one-way assembly connection points to the arms or arm 5, may be able to slide, or have one or more fixed points or Point, and maybe rotatable or non rotatabie in any combination.

Figure 11 shows a possible control system for the movable pivot where a lever arml9, moves a ring gear 20, and stud 21, along a recess 22, of the movable pivot control shaft 23, at the same time working against an angled slot 24, in the input shaft 25, this in turn will move the pivot gear 26,and in turn move straight pivot gear plate 27, thus moving the pivots position, other arrangements may be used.

Figure 12 shows a movement cytle of the variable output speed system using two arms starting with A, going to B, then to C, and then to D, this shows the arms position after two complete revolutions of the crank and pivot, but only a quarter of a revolution of the arms, the amount of turning of the arms depends on where the movable pivot is on the crank.