Title of Invention

"AN IMPROVED CYCLE RIKSHAW"

Abstract

This invention relates to a cycle rickshaw. The cycle rickshaw has a main frame having a handle at the front thereof and extending into a fork for rotatably supporting a front wheel. Said handle has a brake lever for actuating the brakes of said rickshaw. A driver seat is mounted on said frame. A drive sprocket having a pair of pedals is secured to said frame rotatably and has a first drive means. A rear frame is secured to said main frame and having a platform for supporting passenger seats. According to the invention said rear frame supports a second drive means having a motor and a d.c. power source adapted to be connected to said motor. A rear axle having a pair of rear wheels adapted to be rotated by said first or second drive means is secured to said rear frame.

Full Text

FIELD OF INVENTION This invention relates to an improved rickshaw. BACKGROUND OF INVENTION Cycle rickshaws presently known in the art comprise of a cycle with a front and two rear wheels. The rickshaw further comprises a chain sprocket system adapted to be driven manually through a pair of pedals by a driver. Several distinct disadvantages are associated with such a known rickshaw. One such disadvantage is that the driver has to apply considerable force and effort to move the rickshaw on the ascending ground. Yet another disadvantage is that the load or number of passengers carried by the rickshaw is limited. OBJECTS OF THE INVENTION An object of this invention is to propose an improved construction of a cycle rickshaw. Another object of this invention is to propose an improved construction of a cycle rickshaw having automotive means for imparting a drive thereto. Further objects of this invention will be more apparent from the ensuing description. DESCRIPTION OF INVENTION According to this invention there is provided an improved cycle rickshaw comprising of: a) main frame having a handle at the front thereof and extending into a fork for rotatably supporting a front wheel, said handle having a brake lever for actuating the brakes of said rickshaw. b) a driver seat mounted on said frame. c) a drive sprocket having a pair pedals rotatably held to said frame and comprising a first drive means as herein described. d) a rear frame held to said main frame and having a platform for supporting passenger seats, characterized in that is, e) said rear frame supports, a second drive means having a motor, a d.c. power source adapted to be connected to said motor. f) a rear axle of cycle rickshaw has the pair of rear wheels to impart a drive thereto during first or second drive means as herein described. In accordance with this invention the cycle rickshaw comprises a front, wheel and a pair of rear wheels,, a sprocket and chain system for manually driving said pair of rear wheels by a driver through a pair of pedals. Such a first drive means is known in the art and does not form a concept of this invention. Spepcificaily„ the present invention consists in second drive means comprises a motor connected to a source such as storage batteries. Means are provided for drivinq the rear wheels through said first or second drive means.. Alternatively, the second drive means may compliment, the first. drive means. Further objects and advantages of this invention will foe more apparent from the ensuing description when read in conjunction with the accompanying drawings, and wherein: Fig.. .1 shows the cyclerickshaw of the presnet invention; Fig. 2 shows the end of view of the cyclerickshaw; and Fig. 3 shows the block diagram used in the c y c 1 e r ii c k s h aw o f f i g . 1. Referring to fig. is the cycle rickshaw 1 comprises a main frame 7, the front fork la of main frame 7 rotatably supporting a front wheel 2 in a manner known in the art. Frame I has a front, handle 3 with a brake lever 4 for actuation of the brakes. Not known from the prior art is the provision of a motor control switch 5, provided in front handle 3> for actuation of a motor, and more specifically a d.c,, motor 6 and in a manner subsequently described herein. Main frame 7 supports a driver seat 8 so as to seal a driver to actuate the pedals 9 provided with a drive sprocket 10, and which constitutes the first drive means. Drive sprocket 10 through a chain 1.2. Normally, sprocket 11 is mounted on the rear axle of the cycle having the pair of rear wheels 20 and im pa r t i n g a d rive t her eto. In distinction., sprocket 11 imparts a drive-to a reduction assembly 13. For this purpose, the cycle rickshaw 1 comprises said motor 6 having a pulley 14 mounted on its output shaft, said pulley having a beat 15 for driving a driven pulley 16. Driven pulley 16 drives sprockeft 17 mounted on rear axle 13. Sprocket 17 is mounted on axle 18 in order to provide a drive thereto from motor 6, said motor obtaining power from a set of batteries 19 upon ac.tuat.iori of motor control switch 5. Further, a sprocket 19 is mounted oil axle 18. Sprocket 19 obtaining a drive from manually operated pedals 9,, Axle .18 imparts a movement, to rear wheels 20 by rec.ei.vinq power wheels 20 bv receiving power from wheels 20 by receiving power from either motor 6 or from pedals 9. A rear or passenger seat. frame 27 is held to or extends from main frame 1, said frame 2.7 supporting on axle 18 through shock absorbers 21. Break lever 4 is adapted to break drum 22 so as to cause a breaking action on rear wheels 20. Further, a passenger seat assembly 23 is mounted on frame 27, said seat having a hood 24. The rickshaw 1 of the present invention further comprises a control card 25 which controls the flow of current from batteries 26 intro motor 6. Reference is now made to fig. 3 which illustrates the block diagram of control card( 25 to comprise a chopper circuit 5.1 connected to a power source through a diode 52. The power source is also connected to an enable circuit 53 having a start switch 54. Enable circuit. 53 is connected to a speed switch 55. Enable circuit 53 actuates a chopper drive 57 through a pube width modulation control circuit 56, said chopper drive circuit 57 adapted to drive chopper circuit 5.1. Control circuit to a current circuit having a current adjuster 59. Motor 6 is connected to current control circuit. 58. Control circuit is connected to a speed control circuit 663, said circuit adopted to receive a feed back signal,. Speed control circuit 60 has a set speed signal circuit 61. I CLAIM; 1. An improved cycle rickshaw comprising of: a) main frame having a handle at the front thereof and extending into a fork for rotatably supporting a front wheel, said handle having a brake lever for actuating the brakes of said rickshaw. b) a driver seat mounted on said frame. c) a drive sprocket having a pair pedals rotatably held to said frame and comprising a first drive means as herein described. d) a rear frame held to said main frame and having a platform for supporting passenger seats, characterized in that is, e) said rear frame supports, a second drive means having a motor, a d.c. power source adapted to be connected to said motor. f) a rear axle of cycle rickshaw has the pair of rear wheels to impart a drive thereto during first or second drive means as herein described. 2. An improved cycle rickshaw as claimed in claim 1 wherein said rear axle has a first free wheeling sprocket for obtain a drive from said first drive means and a second free wheeling sprocket for obtaining a drive from said second drive means. 3. An improved cycle rickshaw as claimed in claim 1 wherein said front handle has a motor control switch for connecting said motor to the power source. 4. An improved cycle rickshaw as claimed in claim 1 wherein said motor is connected to said second sprocket mounted on the rear axle through a gear reduction unit. 5. An improved cycle rickshaw as claimed in claim 1 comprising a control card comprising a speed control circuit for receiving the tacho/armature voltage, a central control adapted to be connected to said control circuit and current control circuit, the central control circuit adapted to drive a chopper circuit. 6. An improved cycle rickshaw as claimed in claim 5 wherein said central control circuit is connected to a chopper circuit through a chopper drive. 7. An improved cycle rickshaw as claimed in claims 5 & 6 wherein said control circuit is a pulse width modulator. 8. An improved cycle rickshaw as claimed in claim 1 wherein said switch is connected to the central control circuit through an enable circuit. 9. An improved cycle rickshaw substantially as herein described and illustrated.

Documents:

2654-del-1997-abstract.pdf

2654-del-1997-claims.pdf

2654-del-1997-correspondence-others.pdf

2654-del-1997-correspondence-po.pdf

2654-del-1997-description (complete).pdf

2654-del-1997-drawings.pdf

2654-del-1997-form-1.pdf

2654-del-1997-form-19.pdf

2654-del-1997-form-2.pdf

2654-del-1997-form-3.pdf

2654-del-1997-form-5.pdf

2654-del-1997-form-6.pdf

2654-del-1997-gpa.pdf

2654-del-1997-petition-124.pdf