Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
213 words
An electrically assisted cycle including a frame, a ground engaging wheel rotatably mounted on the frame, a rotatable drive member rotatably wound on the frame and arranged to be rotated by the rider of the cycle, an endless, non-extensible flexible member for transmitting motion of said drive member to said wheel whereby rotation of said drive member propels the cycle, an electric drive arrangement and an associated power source carried by the frame, a drive output of the electric drive arrangement being coupled to said wheel whereby said electric drive arrangement can drive the wheel means mounting at least that part of the drive arrangement carrying the drive output on the frame for limited movement relative thereto against the action of a resilient bias, electrical switch means operable in response to movement of said part of said drive arrangement relative to the frame, and the arrangement being such that said part of said drive arrangement is moved relative to the frame, against said resilient bias to operate said switch by the application to said drive member, by the rider of driving force to propel the cycle, said switch means in use being so associated with the electric drive arrangement that the electric drive arrangement cannot be energised unless said switch means is operated.
Claim 2
Dependent Claim
213 words
An electrically assisted cycle including a frame, a ground engaging wheel rotatably mounted on the frame, a rotatable drive member rotatably wound on the frame and arranged to be rotated by the rider of the cycle, an endless, non-extensible flexible member for transmitting motion of said drive member to said wheel whereby rotation of said drive member propels the cycle, an electric drive arrangement and an associated power source carried by the frame, a drive output of the electric drive arrangement being coupled to said wheel whereby said electric drive arrangement can drive the wheel means mounting at least that part of the drive arrangement carrying the drive output on the frame for limited movement relative thereto against the action of a resilient bias, electrical switch means operable in response to movement of said part of said drive arrangement relative to the frame, and the arrangement being such that said part of said drive arrangement is moved relative to the frame, against said resilient bias to operate said switch by the application to said drive member, by the rider of driving force to propel the cycle, said switch means in use being so associated with the electric drive arrangement that the electric drive arrangement cannot be energised unless said switch means is operated.
Claim 3
Dependent Claim
66 words
A cycle as claimed in claim 1 wherein said electric drive arrangement includes an electric motor and a gear mechanism, the gear mechanism transmitting rotation of the motor shaft to the drive output of the drive arrangement and the electric motor and the gear mechanism being combined to form a single unit which is mounted on the frame for said limited movement relative to the frame.
Claim 4
Dependent Claim
58 words
A cycle as claimed in claim 1 wherein the mounting of the drive arrangement, or said part of the drive arrangement on the frame involves the use of resilient coupling members, the resilient coupling members affording the possibility of movement of the drive arrangement, or said part thereof, relative to the frame, and also providing said resilient bias.
Claim 5
Dependent Claim
74 words
A cycle as claimed in claim 1 wherein the output of the drive arrangement is engaged with said endless flexible member so that upon the application of driving force to said drive member by the rider, a force is applied by way of said endless flexible member to the drive output of the drive arrangement thus moving the drive arrangement or said part thereof, relative to the frame as permitted by the mounting thereof.