Patent ID: 6079742
Filing Date: 2000-06-27
Classification: B25B,B60S

Abstract:
A tire changing system with frame mounted jacks and lug wrench comprising, in combination:a vehicle having a plurality of wheels and a frame with a pair of longitudinal lower supports horizontally situated on a lower surface thereof adjacent to sides thereof;four housings each with a rectilinear box-shaped configuration having a horizontally oriented upper extent, vertically oriented intermediate extents integrally coupled perpendicularly to an edge of the first horizontally extent, and a horizontally oriented open lower extent, the lower extent having a plurality of flanges with apertures formed therein for allowing the coupling of one of the housings to a longitudinal lower support of the vehicle adjacent each wheel thereof;four jacks coupled to the upper extent of an associated housing through a plurality of bolts and each having an extended position upon the receipt of a raise signal for raising an associated wheel above the ground and a retracted position upon the receipt of a lower signal for lowering an associated wheel to the ground thus allowing normal operation thereof, each jack having a plurality of cylindrical members nestable one within the other and situated about a vertical axis with a circular plate integrally coupled to a bottom end thereof, a hydraulic opening situated perpendicularly to a side of the top cylindrical member adjacent the upper extent thereof coupled to a source of hydraulic fluid, each jack having apertures formed therein for coupling with an associated housing and with springs coupling the circular plate and top of the upper extent of the top cylindrical member to urge the cylindrical members to a retracted position within an associated housing;an electric lug wrench with a T-shaped configuration having a nut engagement portion for engaging lug nuts of the wheels of the vehicle, a trigger for effecting rotation of the lug nuts, and an elongated power cord with a length equal to that of the vehicle for coupling with a power source;a control mechanism for allowing a user to selectively transmit to the jacks the raise signal and the lower signal, the control mechanism including a housing situated within the lug wrench, four actuation keys situated on the housing each having a first orientation to transmit a lower signal and a second orientation to transmit a raise signal, and a master actuation key also situated on the housing having a first orientation for allowing transmission of the raise signal and lower signal and transmission of power to the lug wrench only upon the vehicle being deactivated and a second orientation for precluding the transmission of the raise signal and lower signal and the transmission of power to the lug wrench; andpivotal braces secured to the frame adjacent to the tires to preclude inadvertent dropping of a portion of the vehicle after a jack has been activated.