Motor and brake controls
First Claim
1. In a motor and brake control device for an engine having a flywheel secured to a crankshaft of the engine so that the flywheel turns and respectively stops with turning and stopping respectively of the crankshaft, a crankcase, a flywheel magneto having magnetic steel at the periphery of the flywheel, the improvement comprisingan annular brake drum formed on said flywheel having an inner circumference of said brake drum comprising a braking surface,a pair of expandable brake shoes engageable with the braking surface for stopping the flywheel, the crankshaft and the engine,an actuating member engaged with an end of each brake shoe, said actuating member being mounted movably so as to expand said brake shoes into engagement with the braking surface to brake said drum,a spring disposed between said shoes for biasing said shoes so that said end of each brake shoe engages said actuating member,switch means for shutting off the engine,a supporting plate secured to said crankcase axially adjacent to said flywheel and substantially perpendicular to the axis of the flywheel,said supporting plate constitutes means for supporting another end of each said brake shoe, one end of said actuating member, and said switch means such that the latter is operated by the actuating member by movement of the latter, andsaid actuating member, said brake shoes and said switch means being so arranged on said supporting plate adjacent said flywheel with a minimum axial length of the device providing a compact construction, said brake shoes being disposed inside said annular brake drum.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for braking an engine is provided with a brake drum in the form of an annular projection formed on a side of a flywheel secured to a crankshaft of the engine. A pair of brake shoes are provided inside of the brake drum, and an end of each brake shoe is rotatably supported on a supporting plate. A spring is provided between the brake shoes to contract the shoes. A cam is rotatably provided on the supporting plate to be engaged with the other end of each brake shoe. A lever is connected to the cam and a spring is provided to urge the lever in the direction to expand the brake shoes. The lever is held by a brake operating device in the contracting state of the brake shoes.
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Citations
9 Claims
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1. In a motor and brake control device for an engine having a flywheel secured to a crankshaft of the engine so that the flywheel turns and respectively stops with turning and stopping respectively of the crankshaft, a crankcase, a flywheel magneto having magnetic steel at the periphery of the flywheel, the improvement comprising
an annular brake drum formed on said flywheel having an inner circumference of said brake drum comprising a braking surface, a pair of expandable brake shoes engageable with the braking surface for stopping the flywheel, the crankshaft and the engine, an actuating member engaged with an end of each brake shoe, said actuating member being mounted movably so as to expand said brake shoes into engagement with the braking surface to brake said drum, a spring disposed between said shoes for biasing said shoes so that said end of each brake shoe engages said actuating member, switch means for shutting off the engine, a supporting plate secured to said crankcase axially adjacent to said flywheel and substantially perpendicular to the axis of the flywheel, said supporting plate constitutes means for supporting another end of each said brake shoe, one end of said actuating member, and said switch means such that the latter is operated by the actuating member by movement of the latter, and said actuating member, said brake shoes and said switch means being so arranged on said supporting plate adjacent said flywheel with a minimum axial length of the device providing a compact construction, said brake shoes being disposed inside said annular brake drum.
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9. In a motor and brake control device for an engine having a flywheel secured to a crankshaft of the engine so that the flywheel turns and respectively stops with turning and stopping respectively of the crankshaft, a crankcase, a flywheel magneto having magnetic steel at the periphery of the flywheel, the improvement comprising
an annular brake drum formed on said flywheel having an inner circumference of said brake drum comprising a braking surface, a pair of expandable brake shoes engageable with the braking surface for stopping the flywheel, the crankshaft and the engine, an actuating member engaged with each said brake shoe and mounted movably so as to expand said brake shoes into engagement with the breaking surface to brake said drum, and a spring disposed between said shoes for biasing said shoes so that each said brake shoe engages said actuating member, switch means for shutting off the engine, a supporting plate secured to said crankcase axially adjacent to said flywheel and substantially perpendicular to the axis of the flywheel, said supporting plate constitutes means for supporting each said brake shoe, said actuating member, and said switch means arranged such that the latter is operated by the actuating member by movement of the latter, and said actuating member, said brake shoes and said switch means being so arranged on said supporting plate adjacent said flywheel with a minimum axial length of the device providing a compact construction, said brake shoes being disposed inside said annular brake drum.
Specification