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7523808 |
Mast assembly in forklift truck
A mast assembly of a forklift truck has outer and inner masts, a lift cylinder, a rearward projection and a cylinder support. The outer mast is supported by the truck body at the front thereof. The...
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7407038 |
Lifting framework for an industrial truck
A lifting framework for an industrial truck has an extendible mast guided on a guide mast by rollers. Means are provided for bracing the extendible mast with the guide mast so as to prevent the...
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7398859 |
Mast construction for a lift truck
A mast includes a base section, an outer telescopic section and an inner telescopic section which are raised and lowered by a pair of main lift cylinders. A fork carriage is slidably mounted to the...
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7281608 |
Loading/unloading device for shelving
The invention relates to a rack serving device ( 1 ) with a load-bearing means ( 4 ) displaceable in the height direction of a mast ( 2 ), the mast ( 2 ) being guided by means of bogie assemblies (...
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7240771 |
Mast staging hydraulic circuit
A multistage mast assembly for use on a lift truck and method of operation for staging first and second mast sections of the multistage mast assembly. Each mast section has a retracted position and...
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7219770 |
Coordinated lift system with user selectable RF channels
A coordinated lift system with user selectable RF channels coordinates the raising and lowering of a vehicle relative to a surface by using wireless communications. The lift system includes at...
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7191872 |
Fork height adjustment mechanism
A material handling vehicle including a truck body and a fork assembly adjacent the truck body. A link arm extending between the truck body and the fork assembly has a proximal end and a distal...
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7175000 |
Lifting truck with displaceable masts and balancing cylinder
A lifting truck with a telescoping mast and a balancing cylinder is disclosed. The stages of the mast are each constructed with three vertical beams. A mechanism for extending the mast are...
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7134527 |
Forklift upright assembly
A mast apparatus that includes a cross member assembly that permits an operator to see through portions of the assembly is provided. The cross member assembly includes upper and lower horizontal...
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7128188 |
Elevating truck platform, in particular fork elevating truck platforms
A lifting truck such as a forklift truck which can be provided with a supply container which is especially easy to build. To this end, space is made on a carrier between a lifting device for the...
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7096999 |
Mast construction for a lift truck
A mast includes a base section, an outer telescopic section and an inner telescopic section which are raised and lowered by a pair of main lift cylinders. A fork carriage is slidably mounted to the...
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6945745 |
Industrial truck with a device for moving a lifting frame
An industrial truck has a chassis ( 1 ), a lifting frame ( 5 ), a load holding device ( 10 ) that can move vertically along the lifting frame ( 5 ), and at least one movement device to move the...
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6932555 |
Multi-purpose load bearing assembly for all terrain vehicle (ATV)
An support structure is provided comprising: (a) a mast extending upwards; (b) a center bar extending horizontally from the mast, the center bar configured to extend along the bottom of the light...
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6505710 |
Mast apparatus for fork lift trucks
A triple mast type, slide type full free lift mast comprises a mast combination composed of an inner mast member, a middle mast member and an outer mast member, a combination of a free lift...
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6240353 |
Industrial vehicle
A control apparatus for an industrial vehicle is disclosed. The vehicle has a rear axle that is swingable during straight travel of the vehicle and can be fixed during turning of the vehicle. A...
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6193015 |
Structure to join cylinder lifting cargo-handling tool
A structure to join a cylinder lifting a cargo-handling tool includes a pair of masts provided on a forklift truck; a pair of second masts vertically moved by mast lifting cylinder disposed...
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6175796 |
Apparatus and method for restricting pivoting of industrial vehicles axles
A method and apparatus for restricting pivoting of an industrial vehicle axle and maintaining the vehicle stability without sacrificing the vehicle's driving performance. Pivoting of the axle with...
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6079935 |
Forklift truck
A forklift truck has a frame, a cab including a roof to protect the driver and a lift support structure connected to the frame. A load-carrying fork is mounted on the lift support structure for...
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5984050 |
Carriage suspension for lift truck
A carriage suspension system for use with a lift truck having a tractor, a mast including a vertical track and a carriage suspended from the track for movement therealong. The carriage is raised...
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5878844 |
Ball screw joint for an automated guided vehicle
An automated guided vehicle for carrying a load comprises a mast, a lift carriage, a ball screw drive assembly and a ball screw joint. The ball screw drive assembly has a lift nut and a vertically...
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5834942 |
Equipment for determining when synthetic fiber cables are ready to be replaced
An apparatus for determining when a synthetic fiber cable for an elevator is ready for replacement is disclosed. The apparatus includes at least one voltage detection unit for detecting a voltage...
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5709241 |
Butterfly valve
A butterfly valve adapted to be arranged in a pipe through which fluid can flow, the pipe having an axis and an outlet end, the valve comprising a valve shaft having an axis eccentric to the pipe...
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5657834 |
Mast staging cushion apparatus
A lift truck provided with a fixed mast section, several moveable mast sections and a carriage supporting load carrying forks and operator's platform is hydraulically raised and lowered. Mast...
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5645142 |
Wedge braking system for multi-stage lifts
Apparatus for braking relative vertical movement between two vertical members includes a ramp mounted on one of the members to oppose a vertical face on the other. If the ramp member accelerates...
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5641261 |
Fork lift truck
A fork lift truck having a "lazy tong" or "scissor-like" horizontal motion control system attached to the mast carriage which allows the load carried by the mast to be retracted from forward of the...
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5636713 |
Multiple RAM assembly and recuperative drive system for hydraulic lift
A multi-stage hydraulic ram assembly for the accumulator drive system of an elevator assembly includes a plurality of piston-cylinder arrangements connected hydraulically in parallel and...
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5586619 |
Lifting apparatus
The invention comprises a lifting apparatus having a mobile housing with three telescoping sleeves slidably mounted in one another and in said housing to slide upward in telescoping relation out of...
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5515945 |
Multi-stage mast assembly for portable lifts
A multi-stage mast assembly has its mast stages stacked front to back when retracted and has front-to-back guide rollers and side-to-side guide rollers between the mast stages and a front carriage...
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5395201 |
Container and container carrier with piston-cylinder devices for lifting containers on to, off and along the carrier
A container 1 has a support member 3 which ascends and descends freely and is provided at back of a container body 2, a top connecting member 11 which is fixed at front of the container body 2 and...
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5393190 |
Apparatus for lifting and tilting heavy containers
Apparatus is disclosed for engaging, raising and rotating tanks/cylinders which contain liquids or gases under pressure. The apparatus comprises a cradle rotationally mounted on an elevator...
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5374156 |
Carriage assembly and side shift system for a lift truck
A carriage assembly, 20h for a lift truck upright assembly, 12, has pivotally mounted forks, 30, controlled by hydraulic cylinders, 36, that are operated by side shifter circuit, 110, having a...
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5361872 |
Chain wheel mounting structure in forklift
Disclosed is a chain wheel mounting structure adapted to rotatably mount a chain wheel onto a wheel bracket by a support pin. An attaching hole having a taper hole and a threaded hole larger in...
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5330032 |
Lift trucks and extensible mast structures therefor
An extensible mast structure having a fixed mast section and at least one movable mast section mounted on the fixed mast section. A load carrying carriage mounted on the movable mast section for...
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5328321 |
Multi-stage mast for a forklift truck
A three-stage mast (1) for a forklift truck and a forklift truck incorporating the mast (1). The mast (1) has an outer mast section (2) for mounting on the truck. A middle mast section (5) is...
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5326217 |
Lift truck with negative drop upright
A lift truck includes an upright assembly having first, second and third telescoping mast sections. Each mast section is formed from pairs of laterally spaced and interconnected I-beam rails. A...
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5238086 |
Control device for forklift
On a forklift equipped with a full free lift mast, a limit switch for detecting the maximum free lift of fork on an inner mast is installed in such a manner when the limit switch is turned on, the...
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5165840 |
Clamp attachment for a lift truck
A clamp attachment for use with a lift truck for handling rail car bogies. The clamp attachment includes an upper frame that is attached to the carriage of the lift truck for upward and downward...
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5046585 |
Upright assembly for fork lift truck
An upright assembly for a fork lift truck is disclosed in which the assembly comprises an outer mast of U-shaped cross-section and an inner mast also of U-shaped cross-section that is received in...
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5022496 |
Slowdown during staging of a turret stockpicker
A materials handling vehicle, such as a turret stockpicker, includes a telescoping mast comprising inner and outer sections. The staging of these sections, and the stopping of the platform assembly...
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4896748 |
Full free lift mast assembly
A full free lift mast assembly having a first pair of spaced apart uprights, a second pair of spaced apart uprights mounted on the first pair of uprights and elevationally movable therealong and a...
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4889038 |
Hydraulic cylinder
A hydraulic cylinder comprising a hollow sleeve, having inserted in it, a hollow piston rod. The hollow sleeve further contains an opening allowing hydraulic fluid to pass therethrough and into the...
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4875555 |
Patient lifting device
A patient lifting device shows a lifting platform (26) connected to an upper column part (16), which is raiseable and lowerable by a jack (18) operated by an electric motor (20). A gas spring (34)...
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4869639 |
Method at vehicles having a lifting device for compensating departures in the position of loads on the lifting device relative to the frame of the vehicle
The present invention relates to a compensating method applicable to vehicles having a lifting device made up of a mast (4) and vertically adjustable load carrier (5) provided on the mast. The...
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4782920 |
Load-lifting mast especially adapted for use with automatically-guided vehicles
A load-lifting mast especially adapted for an automatically-guided, driverless vehicle has automatic features for ensuring accuracy and reliability of operation despite the absence of a driver. For...
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4765441 |
Industrial truck, particularly high-lift truck, also as a high-lift truck having a displaceable mast
An industrial truck, particularly a high-lift truck, comprising a lifting frame provided with extensible mast sections and a load-carrying carriage, is provided on the fixed mast section and, if...
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4762203 |
Lift truck lowering system
A hydraulic relief valve terminates release of fluid to lower a lift truck load carriage if the load carriage becomes supported by external structure during one stage of lowering, and an electrical...
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4708577 |
Self-leveling fork lift apparatus
A fork lift truck includes a mast support bar to which the mast supporting carriage and fork lift tines are mounted. The mast support bar includes a central arc-shape segment on which a concentric...
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4657471 |
Load lifting unit for a lift truck
The present invention discloses a load lifting unit for a lift truck, and more particularly, an improved structure of a load lifting unit for a counterbalance type lift truck. In the invention, to...
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4655323 |
Locking device for extensible elevator sections
An elevator, especially an oblique elevator, has a plurality of telescopic sections, along which a load container is movable. The telescoping of the sections takes place in such a manner that all...
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4600084 |
Hydraulic manifold for two and three stage masts
A hydraulic manifold is provided on a primary mast section which maximizes the commonalty of hydraulic components used in the hydraulic lift control systems of two and three stage mast assemblies...
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