Jost-werke Gmbh

Jost-werke Ag

Hans Dreyer

Gerald Muller

Rainer Spitz

Wolfgang Pohl

Wolfgang Bergmann

Manfred Rieger

A fifth wheel includes a coupling plate formed with an insertion slot for receiving a trailer king pin. The insertion slot is provided with a central aperture sized to receive the king pin and formed with a counterbored step. A non-metallic wear ring is fitted within the aperture and is retained against axial displacement with an arcuate metal holding plate mounted within the counterbored step, and partially overlapping the wear ring. The wear ring includes an outer contour wall and an inner contour wall. The outer contour wall and the inner surface of the aperture share a common center of curvature, which center of curvature is eccentric relative to the axis of rotation of the king pin mounted therein such that any rotational force resulting from the rotation of the king pin translates linearly into the wear ring. Additionally, the inner contour of the wear ring has a center of curvature axially aligned with the axis of rotation of the king pin to reduce the frictional engagement between the wear ring and the king pin. Additionally, a pair of slip pads are positioned within recesses formed on the top surface of the coupling plate. Each recess is somewhat larger than the slip pads to provide for thermal expansion, but remains relatively close in size to the slip pads to prevent lateral displacement thereof. In order to reduce fracture as a result of the king pin contacting the slip pads, the slip pads do not extend downwardly over the inclined surface of the coupling plate.

Fifth wheel

A landing gear for semitrailers has a leg the upper end of which is connected with the semitrailer and the lower end of which is connected with a ground contacting member by a load transmitting device which can turn relative to the leg about a horizontal axis back and forth to opposite sides of a neutral portion and has a part cylindrical shell which can roll on a skid between two upstranding sidewalls of the ground contacting member. The axial ends of the shell are connected with end walls which are inwardly adjacent the sidewalls and carry followers serving to track V-shaped cam slots in the adjacent sidewalls. The load transmitting device is biased to the neutral position by two leaf springs which are located at opposite sides of the pivot axis for the load transmitting device and each of which is separably connected to the leg as well as to the skid. The springs are accessible, at least in the neutral position of the load transmitting device, and extend through a circumferentially extending window in the shell. The load transmitting device and the ground contacting member can be made of metallic sheet stock.

Landing gear for semitrailers and the like

A hub odometer having a protective case adapted to be mounted axially on an axle cap of a vehicle with a substantially cylindrical carrier plate rotatably mounted in the case for supporting a counting mechanism having figure wheels. The shaft of the figure wheels is mounted transversely of the axis of rotation of the case within the carrier plate, and a reduction gearing transfers the relative rotation of case and carrier plate to the figure wheels. At least one ball of heavy metal is provided, the ball being movably positioned in substantially diametrical opposition with respect to the case axis to the figure wheels, the ball being heavier than the counting mechanism.

Hub odometer

A telescopic supporting device for heavy loads of trailers is disclosed which device has a supporting leg projecting from a guiding tube and on the lower end of the supporting leg there is detachably fastened an articulated foot. The foot features a supporting plate which has fastened thereto a holding ring. The lower terminal section of the supporting leg has a ground plate that overlaps the lower edge to laterally jut out. A coupling articulately connects the holding ring with the supporting leg, the coupling being provided with a bolt system traversing diametral circular holes. An elastic compression body is placed between the ground plate and a supporting plate. The upper terminal section of the holding ring overlaps the laterally jutting-out edge section of the ground plate. The supporting leg and the ground plate are separated. To the ground plate there is fastened a supporting tubular sleeve, that fits within the leg. The bolt system transverses diametral circular holes in the supporting sleeve wall and the bolt system is countersunk in circular holes in the supporting leg wall.

Growing community of inventors

Egelsbach-Bayerseich, Germany

Hans Dreyer