WO1997006966A1 - Wheeled carriage with adjustable axles to vary wheel spacing - Google Patents

Wheeled carriage with adjustable axles to vary wheel spacing Download PDF

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Publication number
WO1997006966A1
WO1997006966A1 PCT/AU1995/000492 AU9500492W WO9706966A1 WO 1997006966 A1 WO1997006966 A1 WO 1997006966A1 AU 9500492 W AU9500492 W AU 9500492W WO 9706966 A1 WO9706966 A1 WO 9706966A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
axle
wheeled carriage
shaft section
carriage according
Prior art date
Application number
PCT/AU1995/000492
Other languages
French (fr)
Inventor
Ian Richard Mcrobert
Original Assignee
Ian Richard Mcrobert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to AUPM6971A priority Critical patent/AUPM697194A0/en
Priority claimed from AUPM6971A external-priority patent/AUPM697194A0/en
Priority claimed from AU27133/95A external-priority patent/AU694523B2/en
Application filed by Ian Richard Mcrobert filed Critical Ian Richard Mcrobert
Priority to PCT/AU1995/000492 priority patent/WO1997006966A1/en
Priority to AU31572/95A priority patent/AU3157295A/en
Publication of WO1997006966A1 publication Critical patent/WO1997006966A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
    • B60B35/1072—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements
    • B60B35/1081—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements the element is a wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/12—Installations enabling inspection personnel to drive along sewer canals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/32—Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/305—Manufacturing methods joining by screwing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/60—Industrial applications, e.g. pipe inspection vehicles

Definitions

  • Wheeled carriage with adjustable axles to vary wheel spacing with adjustable axles to vary wheel spacing.
  • This Invention relates to a wheeled carriage.
  • the invention has been devised particularly, although not solely, as a wheeled carriage for conveying inspection equipment such as an inspection camera through a pipeline and in particular a sewer line to allow remote inspection of the pipeline.
  • Sewer lines may be of various cross-sectional sizes and to accommodate such variations it is common to provide the carriages with various sets of wheels of different sizes.
  • a correspondingly large set of wheels are fitted to the carriage so that it can pass along the sewer line.
  • the need for the larger set of wheels arises in order to provide the carriage with sufficient clearance above any liquid and debris which might be on the bottom region of the pipeline.
  • This arrangement has not, however, proved altogether satisfactory as even though fitting large wheels may raise the ground clearance of the carriage, it may still be necessary for the wheels to pass through any liquid, and over any debris, on the bottom region of the pipeline. This is particularly so in cases where the track width of the wheel is relatively small in comparison to the internal diameter of the pipeline.
  • the present invention seeks to provide a novel and useful wheeled carriage which removes, or at least reduces the effect of, the problems outlined above in relation to existing wheeled carriages.
  • the invention provides a wheeled carriage having a wheel supported on an axle, the axle being adjustable for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
  • the wheel comprises one of two wheels mounted for rotation about a common axis.
  • the other of said two wheels is preferably also mounted on an axle adjustable for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
  • the vehicle has two further wheels mounted for rotation about a further common axis spaced with respect to the first common axis along the fore-and-aft axis of the vehicle, each further wheel also being supported on an axle which is adjustable in length for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
  • the wheeled carriage may comprise a body supported on each axle.
  • Each axle is preferably adapted to receive a removable section which provides an extension piece, the removable section being selected from a group of removable sections of various lengths for altering the spacing between the wheel and the central fore-and-aft axis of the carriage.
  • Each removable section may comprise a housing rotatably supporting an axle shaft section having an inner end and an outer end, the housing being adapted to be releasably fixed to the body with the inner end of the axle shaft section being adapted for connection to an output shaft on the body, and the outer end of the axle shaft section being adapted to support the respective wheel.
  • the inner end of the axle shaft section may comprise a sleeve adapted to receive the output shaft on the body.
  • the output shaft may comprise a stub axle projecting from the body. Where the wheeled carriage has four wheels, there are four such stub axles projecting from the body, one corresponding to each wheel.
  • the or each stub axle may be drivingly coupled to a drive means such as an electric motor.
  • Each wheel may comprise a rim having an inner portion incorporating means for mounting the wheel onto the outer end of the axle shaft section, the mounting means being arranged to allow the wheel to be mounted onto the axle shaft section with either side of the wheel innermost, the mounting means being offset from the inner plane of the wheel transverse to the axis of rotation thereof, whereby the spacing between the wheel and the fore-and-aft axis of the vehicle is variable according to which side of the wheel faces innermost when the wheel is positioned on the axle shaft section.
  • Fig. 1 is a perspective view of a wheeled carriage according to the embodiment
  • Fig. 2 is a fragmentary perspective view showing an axle of the wheeled carriage in exploded form
  • Fig. 3 is a perspective view of an axle section forming part of an axle of the wheeled carriage
  • Fig. 4 is a sectional view of an axle of the wheeled carriage.
  • the embodiment shown in the drawings is directed to a wheeled carriage for transporting a camera through a sewer line for inspection purposes.
  • the wheeled carriage 11 comprises a body 13 supported on wheels 15 which are arranged in pairs, with the wheels of each pair being rotatable about a common axis.
  • the body 13 includes a housing 17 having a pair of longitudinal side walls 19, a front wall 21 and a rear wall 23.
  • the housing 17 accommodates a drive system comprising an electric motor (not shown) and four stub axles 25 projecting from the longitudinal side walls 19 of the housing.
  • Mounting plates 26 are fitted onto the body 13 to surround each stub axle 25.
  • Each mounting plate 26 comprises a central boss portion 27 and a plurality of threaded mounting holes 29.
  • the mounting plates 26 are each fastened to the body 13 by threaded fasteners 30.
  • the stub axles 25 are drivingly connected to the electric motor.
  • the electric motor is connected to a remote power supply by way of supply lines included in cable 14.
  • the cable 14 also connects the carriage 11 to a remote control system from where operation of the carriage is controlled.
  • the wheeled vehicle as described so far is of conventional form, with the exception of the mounting plates 26 fitted around the stub axles 25. With the conventional arrangement, the wheels 15 would be fitted directly onto the stub axles 25.
  • a set of four extension pieces 31 is provided for varying the track width between the wheels 15, each extension piece 31 being fitted between one of the stub axle 25 and the respective wheel 15. It is envisaged that there will be various sets of extension pieces with the extension pieces in each set being of different lengths to the extension pieces of other sets so that a particular set can be selected according to the desired track width of the respective wheels.
  • Each extension piece 31 provides a removable section for the axles for the wheels 15 and comprises a housing 33 which rotatably supports an axle shaft section 35 in bearings 36.
  • the axle shaft section 35 has an inner end 37 within the confines of the housing 33 and an outer end 39 projecting from the housing.
  • the inner end 37 is in the form of a sleeve 41 adapted to receive the respective stub axle 25, as best seen in Figure 4 of the drawings.
  • a key and keyway arrangement 43 or other suitable means prevents relative movement between the stub axle 25 and the sleeve 37 whereby rotation of the stub axle is transferred to the axle shaft section 35.
  • the housing 33 has a mounting flange 45 provided on its inner end for detachable connection to the mounting plate 26 around the stub axle by way of mounting bolts 47 which are received in mounting holes 48 and which engage in the threaded holes 29.
  • the mounting flange 45 has a recess 49 which receives the boss portion 27 of the mounting plate 26 to positively locate the flange 45 in position. With this arrangement, the housing 33 is fixed against rotation relative to the body 11 while rotatably supporting the axle shaft section 35.
  • the outer end 39 of the axle shaft section 35 extends beyond the housing 33 and is adapted to receive the respective wheel 15.
  • the wheel can be fastened to the axle shaft section 35 in any suitable fashion so that rotation of the axle shaft section is transmitted to the wheel.
  • the wheel has a rim 51 which incorporates a mounting aperture 53 which is received on the outer end of the axle shaft section and is fixed against rotation with respect thereto by way of a key and keyway mechanism 55.
  • a locking mechanism 57 is provided for removably retaining the wheel 15 on the axle shaft section 35.
  • the rim 51 of the wheel has an inner portion 61 which is offset with respect to a central plane of the wheel as depicted by reference numeral 63 in Fig. 4 of the drawings.
  • the offset inner portion 61 has an outer face 65 and an inner face 67.
  • the wheel 15 is positioned on the axle shaft section 35 with the inner face 67 positioned innermost.
  • the wheel 18 can, however, be positioned on the axle shaft section 15 in a reverse arrangement in which the outer face 65 is innermost. By reversing the wheel in such a manner, it is possible to provide a further adjustment to the track width between corresponding wheels.
  • the wheeled carriage can be used with the wheels 15 fitted directly onto the sub axles 25 in circumstances where the sewer line through which the carriage is to pass is of relatively small diameter.
  • the extension pieces 31 can be fitted according to the particular size of the sewer line.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Handcart (AREA)

Abstract

A wheeled carriage (11), having body (13) and wheels (15) supported on axles. The axles are each adjustable for varying the spacing between a wheel (15) and the central fore-and-aft axis (or body (13)) of the carriage. The adjustment is provided by a removable section (31) which provides an axle extension piece. Further small adjustments can be made via the inner fixing portion of the wheel (15) being offset to the central plane of the wheel-enabling upon reversal of the mounting of the wheel, a small adjustment in wheel position. This carriage is particularly useful for pipeline and sewer line work.

Description

Wheeled carriage with adjustable axles to vary wheel spacing.
Field of the Invention
This Invention relates to a wheeled carriage.
The invention has been devised particularly, although not solely, as a wheeled carriage for conveying inspection equipment such as an inspection camera through a pipeline and in particular a sewer line to allow remote inspection of the pipeline.
Background to the Invention
When inspecting sewer lines, it is common to use a camera supported on a carriage which is propelled along the sewer line. Typically, such carriages are self-propelled and operable from a remote location. The use of a carriage to convey a camera through a sewer line has advantages in that it avoids the need for personnel to pass through the sewer line.
Sewer lines may be of various cross-sectional sizes and to accommodate such variations it is common to provide the carriages with various sets of wheels of different sizes. Where the carriage is to be employed in a sewer of relatively large diameter, a correspondingly large set of wheels are fitted to the carriage so that it can pass along the sewer line. The need for the larger set of wheels arises in order to provide the carriage with sufficient clearance above any liquid and debris which might be on the bottom region of the pipeline. This arrangement has not, however, proved altogether satisfactory as even though fitting large wheels may raise the ground clearance of the carriage, it may still be necessary for the wheels to pass through any liquid, and over any debris, on the bottom region of the pipeline. This is particularly so in cases where the track width of the wheel is relatively small in comparison to the internal diameter of the pipeline. The present invention seeks to provide a novel and useful wheeled carriage which removes, or at least reduces the effect of, the problems outlined above in relation to existing wheeled carriages.
Summary of the Invention
The invention provides a wheeled carriage having a wheel supported on an axle, the axle being adjustable for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
Preferably, the wheel comprises one of two wheels mounted for rotation about a common axis. The other of said two wheels is preferably also mounted on an axle adjustable for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
Preferably, the vehicle has two further wheels mounted for rotation about a further common axis spaced with respect to the first common axis along the fore-and-aft axis of the vehicle, each further wheel also being supported on an axle which is adjustable in length for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
The wheeled carriage may comprise a body supported on each axle. Each axle is preferably adapted to receive a removable section which provides an extension piece, the removable section being selected from a group of removable sections of various lengths for altering the spacing between the wheel and the central fore-and-aft axis of the carriage.
Each removable section may comprise a housing rotatably supporting an axle shaft section having an inner end and an outer end, the housing being adapted to be releasably fixed to the body with the inner end of the axle shaft section being adapted for connection to an output shaft on the body, and the outer end of the axle shaft section being adapted to support the respective wheel.
The inner end of the axle shaft section may comprise a sleeve adapted to receive the output shaft on the body.
The output shaft may comprise a stub axle projecting from the body. Where the wheeled carriage has four wheels, there are four such stub axles projecting from the body, one corresponding to each wheel.
The or each stub axle may be drivingly coupled to a drive means such as an electric motor.
Each wheel may comprise a rim having an inner portion incorporating means for mounting the wheel onto the outer end of the axle shaft section, the mounting means being arranged to allow the wheel to be mounted onto the axle shaft section with either side of the wheel innermost, the mounting means being offset from the inner plane of the wheel transverse to the axis of rotation thereof, whereby the spacing between the wheel and the fore-and-aft axis of the vehicle is variable according to which side of the wheel faces innermost when the wheel is positioned on the axle shaft section.
Brief Description of the Drawings
The invention will be better understood by reference to the following description of one specific embodiment thereof as shown in the accompanying drawings in which:
Fig. 1 is a perspective view of a wheeled carriage according to the embodiment;
Fig. 2 is a fragmentary perspective view showing an axle of the wheeled carriage in exploded form; Fig. 3 is a perspective view of an axle section forming part of an axle of the wheeled carriage; and
Fig. 4 is a sectional view of an axle of the wheeled carriage.
Description of Preferred Embodiment
The embodiment shown in the drawings is directed to a wheeled carriage for transporting a camera through a sewer line for inspection purposes.
The wheeled carriage 11 comprises a body 13 supported on wheels 15 which are arranged in pairs, with the wheels of each pair being rotatable about a common axis. The body 13 includes a housing 17 having a pair of longitudinal side walls 19, a front wall 21 and a rear wall 23. The housing 17 accommodates a drive system comprising an electric motor (not shown) and four stub axles 25 projecting from the longitudinal side walls 19 of the housing. Mounting plates 26 are fitted onto the body 13 to surround each stub axle 25. Each mounting plate 26 comprises a central boss portion 27 and a plurality of threaded mounting holes 29. The mounting plates 26 are each fastened to the body 13 by threaded fasteners 30. The stub axles 25 are drivingly connected to the electric motor. The electric motor is connected to a remote power supply by way of supply lines included in cable 14. The cable 14 also connects the carriage 11 to a remote control system from where operation of the carriage is controlled. The wheeled vehicle as described so far is of conventional form, with the exception of the mounting plates 26 fitted around the stub axles 25. With the conventional arrangement, the wheels 15 would be fitted directly onto the stub axles 25.
A set of four extension pieces 31 is provided for varying the track width between the wheels 15, each extension piece 31 being fitted between one of the stub axle 25 and the respective wheel 15. It is envisaged that there will be various sets of extension pieces with the extension pieces in each set being of different lengths to the extension pieces of other sets so that a particular set can be selected according to the desired track width of the respective wheels. Each extension piece 31 provides a removable section for the axles for the wheels 15 and comprises a housing 33 which rotatably supports an axle shaft section 35 in bearings 36.
The axle shaft section 35 has an inner end 37 within the confines of the housing 33 and an outer end 39 projecting from the housing. The inner end 37 is in the form of a sleeve 41 adapted to receive the respective stub axle 25, as best seen in Figure 4 of the drawings. A key and keyway arrangement 43 or other suitable means prevents relative movement between the stub axle 25 and the sleeve 37 whereby rotation of the stub axle is transferred to the axle shaft section 35.
The housing 33 has a mounting flange 45 provided on its inner end for detachable connection to the mounting plate 26 around the stub axle by way of mounting bolts 47 which are received in mounting holes 48 and which engage in the threaded holes 29. The mounting flange 45 has a recess 49 which receives the boss portion 27 of the mounting plate 26 to positively locate the flange 45 in position. With this arrangement, the housing 33 is fixed against rotation relative to the body 11 while rotatably supporting the axle shaft section 35.
The outer end 39 of the axle shaft section 35 extends beyond the housing 33 and is adapted to receive the respective wheel 15. The wheel can be fastened to the axle shaft section 35 in any suitable fashion so that rotation of the axle shaft section is transmitted to the wheel. In this embodiment, the wheel has a rim 51 which incorporates a mounting aperture 53 which is received on the outer end of the axle shaft section and is fixed against rotation with respect thereto by way of a key and keyway mechanism 55. A locking mechanism 57 is provided for removably retaining the wheel 15 on the axle shaft section 35.
The rim 51 of the wheel has an inner portion 61 which is offset with respect to a central plane of the wheel as depicted by reference numeral 63 in Fig. 4 of the drawings. The offset inner portion 61 has an outer face 65 and an inner face 67. In the arrangement shown in Fig. 4, the wheel 15 is positioned on the axle shaft section 35 with the inner face 67 positioned innermost. The wheel 18 can, however, be positioned on the axle shaft section 15 in a reverse arrangement in which the outer face 65 is innermost. By reversing the wheel in such a manner, it is possible to provide a further adjustment to the track width between corresponding wheels.
In operation, the wheeled carriage can be used with the wheels 15 fitted directly onto the sub axles 25 in circumstances where the sewer line through which the carriage is to pass is of relatively small diameter.
For sewer lines of larger diameters, the extension pieces 31 can be fitted according to the particular size of the sewer line. Conveniently, there are various sets of extension pieces 31 available for selection according to particular requirements, with the sets providing a range of extension pieces of different lengths. It is desirable for the extension pieces 31 which are selected to be of a length which results in the wheels 15 of the wheeled carriage 11 riding on the inner surface of the sewer line at a location spaced above the bottom region of the pipeline so as to provide clearance between the body 17 and any liquid and accumulated debris which may be present in the bottom region of the pipeline. It is also possible to mix extension pieces from different sets, if desired.
It should be appreciated that the scope of the invention is not limited to the scope of the embodiment described. In particular, it should be understood while the embodiment is directed to a conventional wheeled carriage which has been modified to accommodate the extension pieces, it is also possible to manufacture a wheeled carried which incorporates the feature of extension pieces for the axles thereof.

Claims

CLAIMS:
1. A wheeled carriage having a wheel supported on an axle, the axle being adjustable for varying the spacing between the wheel and the central fore-and- aft axis of the carriage.
2. A wheeled carriage according to claim 1 wherein the wheel comprises one of two wheels mounted for rotation about a common axis, the other of said two wheels also being mounted on an axle adjustable for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
3. A wheeled carriage according to claim 1 or 2 wherein the vehicle has two further wheels mounted for rotation about a further common axis spaced with respect to the first-mentioned common axis along the fore-and-aft axis of the vehicle, each further wheel also being supported on an axle which is adjustable for varying the spacing between the wheel and the central fore-and-aft axis of the carriage.
4. A wheeled carriage according to claim 1 , 2 or 3 wherein the or each axle is adapted to receive a removable section which provides an extension piece for the axle.
5. A wheeled carriage according to claim 4 wherein there is provided a group of said removable sections of various lengths for altering the spacing between the wheel and the central fore-and-aft axis of the carriage.
6. A wheeled carriage according to any one of the preceding claims further comprising a body supported on the or each axle and wherein each removable section comprises a housing rotatably supporting an axle shaft section having an inner end and an outer end, the housing being adapted to be releasably fixed to the body with the inner end of the axle shaft section adapted for connection to an output shaft on the body, and the outer end of the axle shaft section being adapted to support the respective wheel.
7. A wheeled carriage according to claim 6 wherein the inner end of the axle shaft section comprises a sleeve adapted to receive the output shaft on the body.
8. A wheeled carriage according to claim 6 or 7 wherein the output shaft comprises a stub axle projecting from the body.
9. A wheeled carriage according to claim 8 wherein there are four of said wheels and four of said stub axles projecting from the body, one stub axle corresponding to each wheel.
10. A wheeled carriage according to claim 8 or 9 wherein at least one of the stub axles is drivingly coupled to a drive motor.
11. A wheeled carriage according to any one of the preceding claims wherein each wheel comprises a rim having an inner portion incorporating mounting means for mounting the wheel onto the outer end of the axle shaft section, the mounting means being arranged to allow the wheel to be mounted onto the axle shaft section with either side of the wheel innermost, the mounting means being offset from the inner plane of the wheel transverse to the axis of rotation thereof, whereby the spacing between the wheel and the fore-and-aft axis of the vehicle is variable according to which side of the wheel faces innermost when the wheel is positioned on the axle shaft section.
12. A wheeled carriage substantially, as herein described with reference to the accompanying drawings.
PCT/AU1995/000492 1994-07-21 1995-08-14 Wheeled carriage with adjustable axles to vary wheel spacing WO1997006966A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AUPM6971A AUPM697194A0 (en) 1994-07-21 1994-07-21 Wheeled carriage
PCT/AU1995/000492 WO1997006966A1 (en) 1994-07-21 1995-08-14 Wheeled carriage with adjustable axles to vary wheel spacing
AU31572/95A AU3157295A (en) 1995-08-14 1995-08-14 Wheeled carriage with adjustable axles to vary wheel spacing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPM6971A AUPM697194A0 (en) 1994-07-21 1994-07-21 Wheeled carriage
AU27133/95A AU694523B2 (en) 1994-07-21 1995-07-21 Wheeled carriage
PCT/AU1995/000492 WO1997006966A1 (en) 1994-07-21 1995-08-14 Wheeled carriage with adjustable axles to vary wheel spacing

Publications (1)

Publication Number Publication Date
WO1997006966A1 true WO1997006966A1 (en) 1997-02-27

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PCT/AU1995/000492 WO1997006966A1 (en) 1994-07-21 1995-08-14 Wheeled carriage with adjustable axles to vary wheel spacing

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822097A1 (en) * 2001-03-15 2002-09-20 Techni Reseaux Robot for inspection and repair of water mains, uses elongated body with camera and tool holder mounted at one end so they can rotate on body and raised or lowered together relative to body
DE10029764B4 (en) * 2000-06-25 2004-09-09 Ernst Hoehne trolley
JP2013025263A (en) * 2011-07-25 2013-02-04 Toshiba Teli Corp Self-propelled type pipe inside inspection camera device and pipe diameter conversion unit
EP3468815A4 (en) * 2016-06-09 2020-07-22 100% Useful Pty. Ltd. Spacer
EP3720721A4 (en) * 2017-12-04 2021-08-11 Volvo Truck Corporation Axle housing extension member and method for adjusting track width of a truck axle

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Publication number Priority date Publication date Assignee Title
US1624278A (en) * 1926-03-08 1927-04-12 Olson Oscar Axle attachment
US1822093A (en) * 1930-03-31 1931-09-08 Case Co J I Tractor
US2562720A (en) * 1949-11-12 1951-07-31 Deere & Co Wheel and axle assembly for variable tread vehicles
FR1159007A (en) * 1956-10-06 1958-06-23 P Ab Variable track device for vehicle
DE2529379A1 (en) * 1975-07-02 1977-01-13 Deere & Co DEVICE FOR CHANGING THE TRACK WIDTH IN WHEELS, IN PARTICULAR AGRICULTURAL VEHICLES
JPS5948203A (en) * 1982-09-10 1984-03-19 Iseki & Co Ltd Device for adjusting tread in tractor
EP0136049A2 (en) * 1983-09-09 1985-04-03 Aerial Access Equipment Limited Construction equipment
GB2162135A (en) * 1984-07-26 1986-01-29 Kubota Ltd Wheel tread adjusting apparatus
SU1495145A1 (en) * 1987-11-03 1989-07-23 Производственное Объединение "Ворошиловградский Тепловозостроительный Завод" Vehicle spreadable wheel pair

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1624278A (en) * 1926-03-08 1927-04-12 Olson Oscar Axle attachment
US1822093A (en) * 1930-03-31 1931-09-08 Case Co J I Tractor
US2562720A (en) * 1949-11-12 1951-07-31 Deere & Co Wheel and axle assembly for variable tread vehicles
FR1159007A (en) * 1956-10-06 1958-06-23 P Ab Variable track device for vehicle
DE2529379A1 (en) * 1975-07-02 1977-01-13 Deere & Co DEVICE FOR CHANGING THE TRACK WIDTH IN WHEELS, IN PARTICULAR AGRICULTURAL VEHICLES
JPS5948203A (en) * 1982-09-10 1984-03-19 Iseki & Co Ltd Device for adjusting tread in tractor
EP0136049A2 (en) * 1983-09-09 1985-04-03 Aerial Access Equipment Limited Construction equipment
GB2162135A (en) * 1984-07-26 1986-01-29 Kubota Ltd Wheel tread adjusting apparatus
SU1495145A1 (en) * 1987-11-03 1989-07-23 Производственное Объединение "Ворошиловградский Тепловозостроительный Завод" Vehicle spreadable wheel pair

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029764B4 (en) * 2000-06-25 2004-09-09 Ernst Hoehne trolley
FR2822097A1 (en) * 2001-03-15 2002-09-20 Techni Reseaux Robot for inspection and repair of water mains, uses elongated body with camera and tool holder mounted at one end so they can rotate on body and raised or lowered together relative to body
JP2013025263A (en) * 2011-07-25 2013-02-04 Toshiba Teli Corp Self-propelled type pipe inside inspection camera device and pipe diameter conversion unit
EP3468815A4 (en) * 2016-06-09 2020-07-22 100% Useful Pty. Ltd. Spacer
US11135874B2 (en) 2016-06-09 2021-10-05 100% Useful Pty. Ltd. Spacer
EP3720721A4 (en) * 2017-12-04 2021-08-11 Volvo Truck Corporation Axle housing extension member and method for adjusting track width of a truck axle

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