초록 ▼

A housing having a telescopingly extendible and retractable leg is carried by the frame of a motorcycle. A camming mechanism which drives the leg is secured to a reversible motor through a limited torque coupling whereby the extension of the leg is automatically terminated upon firm contact with the

A housing having a telescopingly extendible and retractable leg is carried by the frame of a motorcycle. A camming mechanism which drives the leg is secured to a reversible motor through a limited torque coupling whereby the extension of the leg is automatically terminated upon firm contact with the ground. Switching circuitry provides that the motor is manually actuated by the operator of the vehicle.

대표청구항 ▼

A stand system especially adapted for use in combination with a motorcycle for automatically compensating for irregularities of the support surface to hold the motorcycle in a substantially upright position, said stand system comprising: (A) a housing securable to the motorcycle; (B) a leg extensive

A stand system especially adapted for use in combination with a motorcycle for automatically compensating for irregularities of the support surface to hold the motorcycle in a substantially upright position, said stand system comprising: (A) a housing securable to the motorcycle; (B) a leg extensively carried by said housing and having a free end for contacting said support surface; (C) selectively reversible drive means carried by said housing, said drive means transmitting a maximum drive force of a value which is less than the force required to lift the motorcycle from the support surface; (D) cam means responsive to the drive force of said drive means for alternately moving said leg in an extending direction and in a retracting direction; (E) said drive means including: 1. a reversible d-c motor carried by said housing; a. a first contact assembly section having a common terminal connected to a first electrical side of said reversible d-c motor; b. a second contact assembly section having a common terminal connected to a second electrical side of said d-c motor; c. first terminals of each of said first and second contact assembly sections being connected to a voltage source; and d. second terminals of each of said first and second contact assembly sections being selectively connected to motorcycle ground potential; and 2. first and second complementary elements of a frictionally engaged coupling pair; a. one of said complementary elements including an engagement surface; b. another of said complementary elements including: i. a friction element; and ii. biasing means for urging said friction element into contact with said engagement surface; c. means drivingly coupling one of said complementary elements with said motor; and d. means drivingly coupling another of said complementary elements to said cam means; (F) said cam means including: 1. a helical cam journaled in said housing for rotation in alternate directions in response to the drive force of said drive means; and 2. a cam follower carried by said leg and drivingly engaged with said helical cam; (G) retraction stop means for limiting the movement of said leg in the retracting direction; and (H) extension stop means for limiting the movement of said leg in the extending direction; whereby, when said contact assembly sections are actuated in a first direction, voltage is applied across said d-c motor in a first polarity to energize said motor to extend said leg and, when said contact assembly sections are actuated in a second direction, voltage is applied across said d-c motor in a second direction to energize said motor to retract said leg.