Articulated vehicle

Claim 2

An articulated vehicle comprising a first frame mounted on a first axle, and a second frame mounted on a second axle; the frames being articulated at a point between the axles, the first frame housing an engine and transmission unit for driving the vehicle and mounted on said first frame a platform extending cantileverwise over the second frame when said first and second axles are parallel, the platform having a turntable rotatably mounted thereon, said turntable being adapted to mount a working assembly.

Claim 3

A vehicle according to claim 1 wherein the second frame has a large capacity fuel tank mounted thereon.

Claim 4

A vehicle according to claim 1 wherein said engine is adapted to povide power to operate the working assembly.

Claim 5

A vehicle according to claim 1 having independent spring loaded brakes mounted on the first frame and adapted to operably contact said turntable, said spring loaded brakes being connected to a means adapted to release the brakes.

Claim 6

A vehicle according to claim 1 wherein said working assembly is a drill assembly pivotally mounted on said platform.

Claim 7

A vehicle according to claim 5 wherein said drill assembly comprises means adapted to support and elevate drill means, said means comprising a boom pivotally mounted on said platform about a pivot and lift cylinder means including a cylinder hinged on said platform about a hinge and a piston hingedly connected to said boom, said pivot being spaced vertically from said hinge.

Claim 8

A vehicle according to claim 6 wherein said boom comprises hydraulically actuated inner and outer telescopic sections.

Claim 9

A vehicle according to claim 7 wherein said inner and outer telescopic sections of said boom have bearing pads of a low wear brake lining material located therebetween adapted to guide said inner section in said outer section.

Claim 10

A vehicle accOrding to claim 1 wherein said turntable is adapted to rotate through 360*, whereby the working assembly can be located over the first frame to produce a compact arrangement.

Claim 11

A vehicle according to claim 1 including an air compressor mounted on said first frame and wherein a clutch means is provided about a drive shaft between the engine and transmission unit, said clutch means including a pulley means connected by continuous belt means to a shaft on said air compressor, so constructed and arranged that to increase the torque to slow the vehicle the clutch means can be engaged forcing the drive shaft to drive the compressor, thus increasing the torque load on the shaft whereby the vehicle can be slowed down.

Claim 12

A vehicle according to claim 1 wherein said turntable comprises a member rotatably mounted on said platform, means to rotate said member and braking means mounted on one of said platform and said member adapted to engage the other of said platform and said member.

Claim 13

An articulated vehicle comprising first and second frames mounted on first and second spaced apart axles, said frames being articulated at a point between the axles, the first frame housing an engine and transmission unit for driving the vehicle, a platform mounted on said first frame and extending cantileverwise over the second frame when said first and second axles are parallel, said platform having a turntable mounted thereon adapted to rotate through 360*, a pivot bracket mounted on said platform, and a drill assembly mounted on said pivot bracket, said drill assembly comprising drill means rotatably mounted in two perpendicular planes on a telescopic unit, said telescopic unit comprising a telescopic boom pivotally mounted on said bracket about a pivot and lift cylinder means including a cylinder hinged on said bracket about a hinge and a piston hinged on said boom, said pivot being spaced vertically from said hinge.

Claim 14

An articulated vehicle comprising first and second frames mounted on first and second spaced apart axles, said frames being articulated at a point between the axles, the first frame housing an engine and transmission unit for driving the vehicle, a platform mounted on said first frame and extending cantileverwise over the second frame when said first and second axles are parallel, said platform having a turntable mounted thereon adapted to rotate through 360*, a pivot bracket mounted on said platform, and a drill assembly mounted on said pivot bracket, said drill assembly comprising drill means rotatably mounted in two perpendicular planes on a telescopic unit, said telescopic unit comprising a telescopic boom pivotally mounted on said bracket about a pivot and lift cylinder means including a cylinder hinged on said bracket about a hinge and a piston hinged on said boom, said pivot being spaced vertically from said hinge.

Claim 15

A vehicle according to claim 12 wherein said telescopic boom comprises inner and outer telescopic sections having bearing pads of a low wear brake lining material located therebetween adapted to guide said inner sections in said outer section.

Claim 16

A vehicle according to claim 12 wherein the second frame has a large capacity fuel tank mounted thereon.

Claim 17

A vehicle according to claim 12 wherein said turntable comprises a member rotatably mounted on said platform, means to rotate said member and braking means mounted on one of said platform and said member adapted to engage the other of said platform and said member.

Claim 18

A vehicle according to claim 15 wherein said braking means comprise independent spring loaded brakes connected to a hydraulic pump adapted to oppose the spring action, and releast the brakes said hydraulic pump being mounted on said first frame.

Claim 19

A vehicle according to claim 1 including an air compressor mounted on said first frame in line with said engine and said transmission unit, said engine being located between said compressor and said transmission unit, so constructed and arranged that operation of the compressor can be used to increase the torque on a drive shaft between the transmission unit and the engine, whereby the engine can be retarded and the vehicle slowed down.