Abstract: A mobile concrete pump with a chassis, a concrete distributing boom rotatable about a vertical axis and supported on a boom support, as well as with front support legs and rear support legs. Each front support leg and rear support leg arranged on the same side of the chassis of the chassis have a common pivot axis.

Abstract: A portable electric drive for a trailer landing gear lifting apparatus includes a trailer having a landing gear lifting apparatus having a hand crank engaging member for coupling to a portable electric drive. A base plate has an electric motor attached thereto for driving a drive shaft extending therethrough. A hand crank engaging member coupling is attached to the electric motor driven shaft and positioned to engage the hand crank engaging member. The base plate has a handle attached to one side thereof for supporting the trailer landing gear portable electric drive. A support member is attached to the trailer adjacent the landing gear hand crank engaging member and has a pair of openings therethrough having a sleeve attached to the support member over each opening. The base plate has a pair of support arms fixedly attached thereto each aligned for insertion one of the openings in the support member and into the attached sleeve for supporting and aligning the portable electric drive.

Abstract: The present invention relates to a standing device for a stroller having an upper cross bar, a lower cross bar, and two rear wheels includes a pivotal rod having a first end and a second end respectively provided with a first C-shaped tube holder and a second C-shaped tube holder and a pivotal frame having a first end provided with a third C-shaped tube holder and a second end defined with a pivotal pin having a radial stop boss slanting to the first end of the frame. The second C-shaped tube holder of the pivotal rod is pivotally connected to the pivotal pin of the pivotal frame. The first C-shaped tube holder of the pivotal rod and the third C-shaped tube holder of the pivotal frame are respectively connected to the lower crossing bar and the upper cross bar such that the pivotal rod and the pivotal frame fold and support the stroller in cooperation with the rear wheels of the stroller when the stroller is in a collapsed and upright position.

Abstract: An apparatus particularly designed to receive, support, transport and/or position tire and wheel assemblies of vehicles, particularly large vehicles, is described. One embodiment of the apparatus comprised a lower frame, an upright support coupled to the lower frame, a vertical positioning device, and a tire and wheel assembly support operably coupled to the vertical positioning device. Working embodiments included a lower U-shaped frame, generally having plural casters attached thereto, for easy positioning about tires attached to vehicles. A method for receiving, supporting, transporting and positioning tire and wheel assemblies also is described. The method comprises first providing a suitable apparatus. The apparatus is positioned adjacent a tire and wheel assembly of a vehicle. The vertical position of the tire and wheel support assembly is adjusted to engage the tire and wheel assembly. The tire and wheel assembly is then placed on the apparatus, which supports the tire and wheel assembly.

Abstract: The present invention is directed to rotational stabilizer pads for stabilizer arms of vehicles. The stabilizer pads include first and second ground contact faces for contacting respectively a smooth ground surface and a rough or gravel ground surface. In embodiments of the present invention, the stabilizer pads include a reversible resilient pad coupled to a first flange and a second flange. The first and second flanges may include grouser points for engaging the rough ground surface. Further features include a releaseable latch mechanism and offset pad construction.

Abstract: An adaptation to coach landing legs of a recreational vehicle, trailer or the like improves vehicle stability through the use of crossed and clamped stabilizer rods attached by pins or by magnet attachment to the landing legs.

Abstract: An apparatus to be attached to the end of a motorcycle kickstand to prevent the end of the kickstand from sinking into the supporting surface. A supporting pad has a pair of attachment tabs extending therefrom, with which the supporting pad can be attached to the distal end of a kickstand. The pad and tabs preferably are integrally die-cut from a sheet of reinforced rubber, the tabs being flexibly bendable. The tabs are bent into close contact with the leg of the kickstand, with the supporting pad located beneath the distal end of the kickstand. A tightening band is wrapped and tightened around the kickstand leg and the bent tabs to secure the apparatus upon the end of the kickstand.

Abstract: A demountable drive mechanism for the landing gear of a semi-trailer, the landing gear including legs that are extendable and retractable by rotation of a drive shaft through a gear mechanism, the drive shaft being axially displaceable to change the ratio of the gear mechanism, the drive mechanism comprising an electric motor having an output shaft adapted to be coupled to the drive shaft of the landing gear assembly, the electric motor being coupled to the landing gear through a torque arm so that the electric motor can impart torque to the drive shaft, means to axially displace the drive shaft to change the gear ratio, and means to control operation of the electric motor and axial displacement of the drive shaft.

Abstract: The invention is a stabilization system for a fifth wheel trailer that prevents rocking and swaying of the trailer when parked. The rear end of the trailer is supported by a pair of adjustable supports that have a top railing joining them. The rail is moveably mounted on the two supports and is secured to the under side of the trailer. Each of the supports is independently adjustable to lower it to the ground. A pair of cross-braces connect the top of one adjustable support to the base of the other support to prevent swaying of the trailer when parked. A tripod type support is placed under the front end of the trailer to support the front end and to eliminate swaying at the front end of the trailer.

Abstract: The present invention is directed to rotational stabilizer pads for stabilizer arms of vehicles. The stabilizer pads include first and second ground contact faces for contacting respectively a smooth ground surface and a rough or gravel ground surface. In embodiments of the present invention, the stabilizer pads include a reversible resilient pad coupled to a first flange and a second flange. The first and second flanges may include grouser points for engaging the rough ground surface. In embodiments of the present invention, the stabilizer pads are rotated about 135 degrees to change the ground contact face of the stabilizer pad from one of the first and second ground contact faces to the other.

Abstract: A suspension system with an oscillating, rigid axle, particularly for tractors, is described; the axle is supported on a sub-frame with oscillating arms which in turn can be mounted for oscillating on a load-bearing structure of the tractor by suspension means interposed between the axle and the load-bearing structure, the sub-frame comprising at least two pairs of arms arranged so as to form a so-called pantograph-like kinematic linkage.

Abstract: A mobile work machine, especially an automatic concrete pump. The mobile work machine is arranged on a chassis (10) which has at least one preferably horizontally arranged telescopic segment (18) configured as a sliding housing, as well as a supporting strut (20) displaceable in said telescopic segment between a stowed transporting position and at least one extended position, the supporting strut supportable on the ground (28) via a foot element (26). In order to enable easy adjustment of the supporting strut width, it is proposed in accordance with the invention that the telescopic segment (18) consists of an inner segment part (44) fixed to the chassis and an outer segment part (48) which can be limitedly pivoted around an axis (46) parallel to the vertical axis of the chassis.

Abstract: The invention comprises a portable drywall roller device. The device has aframe with a horizontal plate and a horizontal groove across the plate for receiving the lower edge of the a drywall panel. The device has a pair of wheels with one wheel mounted on a rotatable caster mechanism on one side of the device and another wheel rotatably mounted on a horizontal axis extending across the device toward the caster wheel. A sleeve is fixed to the plate and extends upward therefrom. A rod is slidably mounted in the sleeve and has a pair of legs at its lower end which are adapted to engage the ground, one on each side of the horizontal axis extending across the device to provide a lateral ground support for the two wheels. The rod has a forward extending hook at its upper end for mounting over the top of the drywall panel when the bottom of the drywall panel is in the horizontal groove to lock the drywall panel to the device.

Abstract: The mobile working machine has a chassis (10) comprising at least four wheels (30) arranged in pair-wise associated with wheel axles (32) and connected to a frame (36) by interposed wheel springs (34) pre-tensionable by the effect of a load exerted on the frame. Two support legs (22) are also provided laterally one opposite the other on the sides of the frame, associated with one of the wheel axles (32), preferably the back axle, which have a foot-part (26) which can be extended downward and supported on the ground thereby lifting the chassis. At least one blocking mechanism is also provided to selectively release or block the spring path of one of the wheel springs (34). In order to ensure reliable and safe manipulation during blocking of the axle, the blocking mechanism (38) automatically moves in the blocking direction when the foot-part (26) is pulled out and automatically moves in the release direction when the foot-part (26) is retracted.

Abstract: A landing gear assembly for a semitrailer includes a pair of legs that may be simultaneously raised or lowered by turning a single crank. Each of the legs is configured to be able to be mounted in either an inboard or outboard configuration. This is achieved by providing both sides of each leg with no protrusions that extend beyond the space provided in the mounting bracket and the mounting hole used to connect the landing gear to the semitrailer. The gear assembly of the landing gear includes a unique floor base that receives and supports the input shaft. A cover is used to support the input ends of the input shaft and the output shaft. The cover is connected to the input side of the upper tube of the leg and allows the gear assembly to be easily assembled within the perimeter of the upper leg.

Abstract: A system for stabilizing a trailer such as a caravan, when parked, or for raising and lowering a pop-top or a television antenna on a caravan, the system having at least one four water actuated ram, and being operable from water supplied from a water tap 47 (faucet) at a camp ground/caravan park. A valve 19 in the supply line 33 prevents loss of water and hence inadvertent actuation/deactuation of the water actuated rams. A selector valve 21 allows selection between extend and retract operations. In the case of a system for stabilizing a trailer such as a caravan when parked, or for raising and lowering a pop-top on a caravan there are at least two water actuated rams and preferably four water actuated rams 11, 13, 15, 17 connected in parallel.

Abstract: A turnable self-propelled, walk-along tractor vehicle, such as a plow for burying tubing is provided. The tractor vehicle has a pair of drive wheels rotatably mounted on a fixed axle in the front of the vehicle, a back support means, a U-shaped turning bracket mounted to the sides of the tractor vehicle, and optionally a vibrating blade for cutting a trench in the earth coupled at the rear of the vehicle. The back support means is mounted to the tractor vehicle at a first position elevated with respect to the ground and is adapted to engage the ground at a second position when downward force is applied to the turning bracket. The turning bracket comprises first and second portions, which may be flat or tubular in shape, which extend rearwardly from the sides of the tractor vehicle and substantially horizontally with respect to the ground when the back support means is in the first position.

Abstract: A dual mode stabilizer for primary use in conjunction with a backhoe loader or in conjunction with a backhoe attachment for a skid steer loader. The dual mode stabilizer includes a pair of base members rigidly fixable on opposite sides of the tractor proximate the backhoe. A stabilizer arm assembly engages the base member. The stabilizer arm assembly is piston actuated and includes an outrigger arm member, a sliding arm member pivotally connected to the outrigger arm member so as to limit movement of the outrigger arm member with respect to the sliding arm member to rotational movement about a first pivot point, a first locking mechanism for preventing rotational movement of the outrigger arm member. Movement of the sliding arm member within the base member is limited to axial movement. A second locking mechanism is provided between the base member and the sliding arm member to prevent axial movement of the sliding arm member within the base member.

Abstract: An automatic jack and wheel change system having at least one inverted jack driven by an electric motor permanently attached to the vehicle. The system may employ a jack disposed between the front and rear wheel on each side of the vehicle, or it may be equipped with a jack at each of the four wheels. The system also features a novel wheel and hub-axle assembly featuring a split axle whose length may be adjusted by operation of an electric motor. The hub has a plurality of arms extending from the hub in a star-shape, each arm having a finger at its free end. The wheel has a plurality of slots defined therein so that the wheel may be removed by aligning the slots with the arms on the hub and pulling the wheel off when the axle is extended, and a plurality of holes defined therein for receiving the fingers to lock the wheel on the hub when the axle is retracted. Both the motor for raising the jack and the motor for adjusting the length of the axle may be operated by remote control.

Abstract: A semitrailer landing gear shoe for reducing pits, cracks, marks and depressions in pavements and extending the lives of pavements at truck terminals and delivery sites. In a first aspect of the invention, the average stress of a landing gear on a pavement is reduced by attaching enlarged plates to existing landing gear shoe with pairs of brackets and pairs of threaded fasteners. Concentrated stresses are reduced by bonding a compressible pad to lower surface of the enlarged plate. In a second aspect of the invention, average and concentrated stresses are reduced by replacing an existing landing gear shoe with a shoe having an enlarged lower portion and a compressible pad bonded or otherwise attached to the lower portion. Alternate constructions for the improved landing gear shoe and the compressible pad are disclosed.

Abstract: A powered landing gear drive system for a trailer for selectively extending and retracting the landing gear legs of the trailer. An electric motor is powered by a battery carried by a tractor or by the trailer and provides the power for an electric motor. A control system is provided as a security measure to permit limited, coded entry access to the system, and motor operating parameters are sensed to prevent exceeding operating limits of the system. The powered landing gear system can be provided as original equipment, or it can be retrofitted to existing trailers to permit powered landing gear operation.

Abstract: The invention provides a supporting arrangement for a trailer that is towable by a vehicle, in which the trailer includes a tongue for connecting the trailer to the vehicle. The supporting arrangement includes a tongue jack mounted on the tongue. In a deployed position, the tongue jack vertically supports the tongue and thereby prevents contact between the tongue and the ground. In a retracted position, the supporting arrangement holds the tongue jack clear of the ground. A motion detection arrangement senses a dangerous trailer configuration, in which the tongue jack is in the deployed position and actual or potential motion of the trailer above a safe speed is present, and then activates a retraction assembly that automatically moves the tongue jack from the deployed to the retracted position upon activation of the release mechanism. A manual activation arrangement is preferably also included for allowing activation of the release mechanism by a user.

Abstract: A system is provided for leveling and stabilizing a forklift vehicle having a frame and at least one and preferably two axles pivotally connected with the frame. The system includes a frame leveler device including a hydraulic cylinder extending between the frame and the front axle and configured to move the frame with respect to the axle. A stabilizer device is mounted to the frame and includes a pair of arms and two stabilizer hydraulic cylinders. Each stabilizer cylinder has a piston with a rod connected with a separate one of the arms and a base chamber on one side of the piston. Further, a fluid exchange line extends between the base chambers of the two stabilizer cylinders and an exchange valve controls flow through the exchange line.