Implement belt drive mechanism

A belt drive mechanism for transmitting power from a vehicle's power source to an implement vertically shiftably coupled with the vehicle, comprising:

• a primary belt driven by the vehicle power source,
• a jacksheave driven by the primary belt,
• a secondary belt driven by the jacksheave and operatively engaged with at least one implement sheave,
• a support member for supporting the jacksheave, said support member having a first pivotal connection with the implement and a second pivotal connection with the vehicle.

A belt drive mechanism for transmitting power from a vehicle's power source to an implement which is vertically shiftably coupled with the vehicle, comprising:

• a primary belt driven by an output sheave coupled with the vehicle power source,
• a jacksheave driven by the primary belt,
• a secondary belt driven by the jacksheave and operatively engaged with implement sheaves,
• a support member extending between the implement and the vehicle for supporting the jacksheave, said support member being pivotal with respect to both the implement and the vehicle for shifting the position of the jacksheave to a position vertically between the output sheave and the implement sheaves as the implement shifts vertically.

A belt drive mechanism for transmitting power from a vehicle's power source to a mower deck vertically shiftably coupled with the vehicle, comprising:

• a primary belt driven by an output sheave coupled with the vehicle power source,
• a jacksheave driven by the primary belt,
• a secondary belt driven by the jacksheave and operatively engaged with mower deck sheaves which drive mower blades within the mower deck,
• a support member extending between the mower deck and the vehicle for supporting the jacksheave, said support member being pivotal with respect to both the mower deck and the vehicle for shifting the position of the jacksheave to a position vertically between the output sheave and the mower deck sheaves as the mower deck shifts vertically.

A belt drive mechanism for transmitting power from a vehicle's power source to a mower deck coupled with the vehicle for vertical shifting, comprising:

• a primary belt driven by the vehicle power source,
• a jacksheave driven by the primary belt,
• a secondary belt driven by the jacksheave and operatively engaged with mower deck sheaves, and
• a support member for supporting the jacksheave, said support member having a first pivotal connection with the mower deck and a second pivotal connection with the vehicle.