초록 ▼

An electric trolling motor includes a lower unit with a cylindrical motor housing closed at the aft end by a planetary gear-reduction subassembly. A motor shaft supporting hub member telescopes into the housing and has clamped thereagainst an annular gear with clamping bolts passing therethrough and

An electric trolling motor includes a lower unit with a cylindrical motor housing closed at the aft end by a planetary gear-reduction subassembly. A motor shaft supporting hub member telescopes into the housing and has clamped thereagainst an annular gear with clamping bolts passing therethrough and threaded into the hub member. Planetary gears carried by a cage engage the annular gear. A propeller shaft is fixed to the cage and journaled in a second hub portion of the housing. A sun gear meshes with the planetary gears and has an opening aligned with an opening in a hub portion of the first hub member to receive the motor shaft. The shaft openings in the first and second hub members have shaft bearings in spherical seats and rotating seals. The spherical seats provided proper alignment of the shafts. The planetary gear subassembly drops onto the motor shaft with both hub members abutting the motor housing and secured thereto by bolts. The motor shaft and sun gear have complementing interlocking surfaces to establish rotatable interconnection. The opposing surfaces of the sun gear and the cage have thrust bearing surfaces with the motor shaft holding the sun gear in cage abutting relation.

대표청구항 ▼

In an electric trolling motor apparatus having a lower cylindrical unit including an electric motor having a motor shaft and a drive propeller, an improvement in the coupling of the motor shaft to the propeller, comprising an output gear reduction means for connecting the electric motor shaft to the

In an electric trolling motor apparatus having a lower cylindrical unit including an electric motor having a motor shaft and a drive propeller, an improvement in the coupling of the motor shaft to the propeller, comprising an output gear reduction means for connecting the electric motor shaft to the propeller and having input gear means for providing a rotating input to the gear reduction means and an output drive gear means providing a rotating output of a substantially lesser rate than said rotating input, said motor shaft being connected to said input gear means, said propeller having a propeller shaft secured to said output drive gear means, a gear housing having a bearing recess, a radial bearing means secured within said bearing recess for rotatably supporting said propeller shaft, said radial bearing permitting rotational movement of the bearing and including an outer spherical seat located in said recess and establishing coaxial alignment of the motor and propeller shafts and output drive gear means relative to the input gear means of said gear reduction means.