CN1310117A - Force saving drive mechanism for manpowered vehicle - Google Patents

Abstract

The drive mechanism features its fixing part connected to an axle sleeve with inside middle shaft, right and left ratchets installed to free ends of the middle shaft, chain wheel fixed to the right free end, the right and the left rack boards with pedal and, meshed the ratchets separately, and the right and the left guide pipes around the rack boards. The steel cable via the pulley on the guide pipes has two ends connected to the pull hooks on the pedals. The drive mechanism makes vehicle light and fast.

Description

Force saving drive mechanism for manpowered vehicle

The present invention relates to a kind of rickshaw, particularly a kind of force saving drive mechanism for manpowered vehicle.

The motion of common rickshaw, the for example motion of bicycle or manual tricycle, all be to drive the trailing wheel rotation by the power of pedaling that acts on the people on the pedal by chain sprocket, chain to realize, the type of drive of this rotation pedal is along with the variation of the pedal anglec of rotation, driving torque is also changing, and its drawback is that driving efficiency is low, and driving torque is unbalanced, the gas of requiring great effort very much, the speed of a motor vehicle is low.

The objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of rickshaw that makes to become not only laborsaving but also transmission device for rickshaw efficiently.

The objective of the invention is to realize by following technical proposals:

Force saving drive mechanism for manpowered vehicle has the connecting element affixed with rickshaw, be located at the axle sleeve on the connecting element, its technical scheme is that the axis that rotates around it is installed in the described axle sleeve, two free ends of the axis that stretches out from axle sleeve are installed with a left side respectively, right ratchet-gear wheel, be installed with on the right free end of axis and drive the sprocket wheel that the chain drive wheel of human powered vehicle rotates, an above-mentioned left side, the external tooth of right ratchet-gear wheel respectively and be arranged at its fwd, left side perpendicular to the ground up-and-down movement, right rack-plate is meshed, a left side, right rack-plate is equipped with a left side respectively, a right pedal roller and a left side, right steps, on a left side, the periphery of right rack-plate is provided with respectively to have track to make rack-plate do alternatively up and down in its track reciprocating, lower port is sealed and the left side that rack-plate is spacing, right guide pipe, a left side, have respectively on the right guide pipe that above-mentioned pedal roller is done the alternatively up and down crank motion and the rectangular groove that passes through, a described left side, right guide pipe has the attaching parts with rickshaw vehicle frame Joint up and down, on a left side, right guide pipe left outer, be fixed with a left side on the right pedal roller respectively, the angle drag hook of turning right, a left side, between the right guide pipe pulley is installed, through its two ends of steel rope of this rope race respectively with a left side, the angle drag hook of turning right is connected.

The present invention is because its said structure, make left and right ratchet-gear wheel be meshed with left and right rack-plate, left and right stretcher and pedal roller are done with left and right rack-plate and are pumped, like this rider's two legs alternately up and down reciprocatingly the power of effect alternately pass to sprocket wheel and chain by left and right rack-plate and left and right ratchet gear, make the driving torque that is added on the axis relatively more balanced, and application force is in best angle, thereby compare with bicycle, the manual tricycle of common type of drive, the mechanical efficiency of its transmission significantly improves, and the person of riding is pedaled not only light but also quick.

The present invention will now be further detailed embodiment:

Fig. 1 is installed on structural representation on the bicycle for the present invention.

Fig. 2 is along the part sectional view of A-A line among Fig. 1.

Fig. 3 be among Fig. 1 B to partial view.

Fig. 4 be among Fig. 1 C to partial view.

Fig. 5 is along the cutaway view of D-D line among Fig. 4.

Fig. 6 is along the cutaway view of E-E line among Fig. 4.

Fig. 7 is the front view of left rack-plate or right rack-plate.

(a) and (b) are respectively the right elevation of left rack-plate and right rack-plate among Fig. 8.

As shown in Figure 1 and Figure 2, being installed on bicycle with the present invention is example, and the present invention has the connecting element 12 affixed with rickshaw, has axle sleeve 22 on the connecting element, and connecting element is two floors, uses when of the present invention its upright beam 42 with vehicle frame is welded in.The axis 18 that rotates around it is installed in the above-mentioned axle sleeve, is provided with a pair of antifriction-bearing box 20 between axle sleeve and the axis.Two free ends of the axis that stretches out from axle sleeve are installed with left and right ratchet- gear wheel 21,23 respectively, are installed with on the right free end of axis to drive the sprocket wheel 6 that chain drive rickshaw rear wheel rotates.Its mounting means is at the affixed left spindle nose cap 19 of the left free end of axis, left ratchet-gear wheel 21 is threaded with left spindle nose cap 19, so left ratchet-gear wheel 21 drives axis 18 rotations by left spindle nose cap 19, and in like manner right ratchet-gear wheel 23 drives axis 18 rotations by right spindle nose cap 7.Different with left spindle nose cap is to have flange on the right spindle nose cap 7, and sprocket wheel 6 is fixed on this flange, realizes the purpose that the right free end of axis and sprocket wheel 6 are affixed.An above-mentioned left side, right ratchet- gear wheel 21,23 external tooth respectively and be arranged at its fwd, left side perpendicular to the ground up-and-down movement, right rack- plate 17 and 10 is meshed, a left side, right rack- plate 17,10 are equipped with a left side respectively, right pedal roller 15,9 and left, right steps 16,8, on a left side, right rack- plate 17,10 periphery is provided with respectively to have track to make rack-plate do alternatively up and down in its track reciprocating, lower port is sealed and the left side that rack-plate is spacing, right guide pipe 13,5, a left side, right guide pipe 13, have respectively on 5 that above-mentioned pedal roller is done the alternatively up and down crank motion and the rectangular groove 13a that passes through, 5a.As Fig. 1, shown in Figure 3, described left and right guide pipe 13,5 has the attaching parts with rickshaw vehicle frame Joint up and down, this attaching parts 24 is made up of left and right arc sheetmetal 24b and 24c, aglet bar 24a, binding bolt 24d, left and right arc sheetmetal 24b, the inner arc surface that 24c has to match with the crossbeam of rickshaw vehicle frame or chain stay, its exterior arc surface is with aglet bar 24a and is locked by binding bolt 24d.As Fig. 1, Fig. 2, Fig. 4, Fig. 5, shown in Figure 6, on left and right guide pipe 13,5 left outer, right pedal roller 15,9, be fixed with left and right turning drag hook 14,11 respectively, between left and right guide pipe 13,5 pulley 26 is installed, steel rope 27 its two ends of this rope race of process are connected with left and right turning drag hook 14,11 respectively.The also available chainlet filial generation of steel rope is replaced, and little chain also can be used with pulley.Above-mentioned pulley 26 is installed in to be located on the substrate 29 that is fixed together with left and right guide pipe between the left and right guide pipe, the pulley endoporus is equipped with the antifriction-bearing box 30 that cooperates with it, binding bolt 25 cooperates with antifriction-bearing box 30, its termination is affixed by nut 28 and substrate 29, steel rope breaks away from grooving when preventing to move backward, and is provided with an arc cover 31 on pulley top.As Fig. 7, shown in Figure 8, left and right rack- plate 17,10 with contacted each side of the track of left and right guide pipe on have respectively the antifriction-bearing box 32,33,34,35 and 32 that reduces force of sliding friction ', 33 ', 34 ', 35 ', the periphery of described each antifriction-bearing box contacts with the axle track inwall of guide pipe.Be located at left and right rack-plate topmost face and bottom two groups of antifriction-bearing boxs 32,32 of face ' and 35,35 ' in, one group of antifriction-bearing box, 32,32 ' when mounted best axle center deflections of its upper surface are away from the direction of two rack-plates, and one group of antifriction-bearing box, 35,35 ' when mounted best axle center deflections of its lower surface are near the direction of two rack-plates.Can offset left and right guide pipe like this because the heeling error that the motion of rack-plate brings.If above-mentioned antifriction-bearing box is not set, also can inlay the less High molecular material of friction coefficient between guide pipe and the rack-plate, also can directly lubricate by apply lubrication oil.Use when of the present invention, it still is example with the bicycle, left and right guide pipe is individually fixed in chain stay 43 places of the crossbeam 41 and the vehicle frame of vehicle frame 4 by attaching parts, left and right two rack- plates 17 and 10 are done the synchronous crank motion of alternatively up and down with the effect of people's bipod in track separately, it alternately is to realize by the left and right slip of steel rope 27 along pulley 26 synchronously.When right rack-plate 10 passes in right rack-plate by vertex to lower slider because of the people acts on power on the pedal, it can drive right ratchet-gear wheel 23 rotations simultaneously, thereby driving sprocket wheel fixing on the right spindle nose cap 76 rotates, then drive chain 2, rear flywheel, rear wheel 1 rotation, front vehicle wheel 3 advances bicycle along with rotation.When right rack-plate 10 slides to nadir,, and right rack-plate stopped it is stopped because the lower port of guide pipe seals.At this moment, left rack-plate 17 upwards slides into vertex by the pulling of steel rope, and left foot is firmly down pedaled left foot pedal 16 then, and left rack-plate 17 is to lower slider, and by horizontal reset on the right rack-plate 10 of steel rope 27 drives, right crus of diaphragm is not exerted oneself simultaneously.Left side rack-plate 17 drives left ratchet-gear wheel 21 rotations, drive then with the affixed axis 18 of left spindle nose cap 19 to rotate, and then drive the sprocket wheel 6 that is fixed on the right spindle nose cap and rotate, by chain 2 drive rear flywheels, rear wheel 1 rotates, and bicycle is advanced.

Claims (3)

1, a kind of force saving drive mechanism for manpowered vehicle, have the connecting element affixed with rickshaw, be located at the axle sleeve on the connecting element, it is characterized in that being equipped with in the described axle sleeve (22) axis (18) that rotates around it, two free ends of the axis that stretches out from axle sleeve are installed with a left side respectively, right ratchet-gear wheel (21,23), be installed with on the right free end of axis (18) and drive the sprocket wheel (6) that the chain drive wheel of human powered vehicle rotates, an above-mentioned left side, right ratchet-gear wheel (21,23) external tooth respectively and be arranged at its fwd, left side perpendicular to the ground up-and-down movement, right rack-plate (17,10) be meshed, a left side, right rack-plate (17,10) left side is installed respectively, right pedal roller (15,9) and a left side, right steps (16,8), on a left side, right rack-plate (17,10) periphery is provided with respectively to have track to make rack-plate do alternatively up and down in its track reciprocating, lower port is sealed and the left side that rack-plate is spacing, right guide pipe (13,5), a left side, right guide pipe (13,5) have respectively on that above-mentioned pedal roller is done the alternatively up and down crank motion and the rectangular groove (13a that passes through, 5a), a described left side, right guide pipe (13,5) has attaching parts (24) with rickshaw vehicle frame Joint up and down, on a left side, right guide pipe (13,5) left outer, right pedal roller (15,9) be fixed with a left side on respectively, the angle drag hook (14 of turning right, 11), a left side, right guide pipe (13, pulley (26) is installed 5), through its two ends of steel rope (27) of this rope race respectively with a left side, the angle drag hook (14 of turning right, 11) be connected.

2, force saving drive mechanism for manpowered vehicle according to claim 1, it is characterized in that left and right rack-plate (17,10) with contacted each side of the track of left and right guide pipe on have respectively the antifriction-bearing box (32,33,34,35) that reduces force of sliding friction and (32 ', 33 ', 34 ', 35 '), the periphery of described each antifriction-bearing box contacts with the axle track inwall of guide pipe.

3, force saving drive mechanism for manpowered vehicle according to claim 1, it is characterized in that attaching parts (24) is made up of left and right arc sheetmetal (24b, 24c), aglet bar (24a), binding bolt (24d), left and right arc sheetmetal (24b, 24c) has the inner arc surface that crossbeam or chain stay with the rickshaw vehicle frame match, and its exterior arc surface is with aglet bar (24a) and is locked by binding bolt (24d).

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