GB817828A - Improvements in or relating to track attachments for tractors - Google Patents
Improvements in or relating to track attachments for tractorsInfo
- Publication number
- GB817828A GB817828A GB3167254A GB3167254A GB817828A GB 817828 A GB817828 A GB 817828A GB 3167254 A GB3167254 A GB 3167254A GB 3167254 A GB3167254 A GB 3167254A GB 817828 A GB817828 A GB 817828A
- Authority
- GB
- United Kingdom
- Prior art keywords
- unit
- link
- arm
- tractor
- track
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
- B62D49/06—Tractors adapted for multi-purpose use
- B62D49/0621—Tractors adapted for multi-purpose use comprising traction increasing arrangements, e.g. all-wheel traction devices, multiple-axle traction arrangements, auxiliary traction increasing devices
- B62D49/0635—Tractors adapted for multi-purpose use comprising traction increasing arrangements, e.g. all-wheel traction devices, multiple-axle traction arrangements, auxiliary traction increasing devices using additional ground engaging means, e.g. endless tracks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
- B60C27/20—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels having ground-engaging plate-like elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/02—Endless track vehicles with tracks and additional ground wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Soil Working Implements (AREA)
Abstract
817,828. Endless track vehicles. MASSEY-FERGUSON (GREAT BRITAIN) Ltd. Oct. 20, 1955 [Nov. 2, 1954; April 1, 1955; July 22, 1955], Nos. 31672/54, 9532/55, and 21213/55. Class 79(1) A tractor has an endless track attachment comprising an arm 7 carrying an idler wheel 6, round which, and round the associated driving ground wheel 1 of the tractor, an endless track 8 is fitted, the arm 7 being mounted on the tractor so as to be capable of moving the idler wheel both forwardly and towards the ground. As shown in Fig. 1 the arm 7 carries the idler wheel 6 at its forward end, and is pivotally connected at its rearward end to one end of a link 20 pivotally connected at its other end to the tractor axle assembly at 22. Bolted to the latter assembly is a bracket 27 having three pivot pin connection apertures 27a, 27b, and 27c, which form alternative attachment points for a telescopic spring unit 35, the other end of which is attached to one end of a link 30. The other end of the link 30 is pivotally connected at 31 to a pair of lugs 29 rigid with the arm 7. When a single compression spring unit 35 is employed (Fig. 6, not shown), one of the attachment apertures 27a, 27b, 27c may be selected in accordance with the degree of inclination of the line of action of the spring unit desired. As shown, however, a second spring unit 35a is employed, and in this case the unit 35 is connected to the aperture 27a, and the apertures 27b, and 27c are used for mounting a bracket 53 forming the upper attachment of the unit 35a. The upper end of the unit 35a is connected to the bracket 53 via a link 30a which is similar to the link 30. The lower end of the unit 35a is connected to the junction of a pair of links 57, 60, the other ends of which are connected respectively to the pivot of the unit 35 with the link 30, and a pivot pin 45 carried by the lugs 29. In normal operation of the tractor, the parts are disposed as shown in Fig. 3. When it is desired to remove the track 8 from the wheels 1 and 6, a spanner is used as shown in dot-dash lines in Fig. 1, to apply a force to the pivot pin 42 between the lower end of the unit 35 and the link 30 to turn the link and unit through a dead-centre position to the position shown in Fig. 1. The unit 35 is then able to expand until a stop 44 on the unit engages an abutment 33 to prevent its further extension. The unit 35a and the link 31a are similarly turned through a dead-centre position, and it is then possible to move the arm 7 rearwardly so as to decrease the distance between the centres of the wheels 1 and 6 and so remove the tracks 8. Alternatively, where a single unit 35 is employed (Fig. 6, not shown), the arm 7 may be drawn rearwardly against the action of the unit 35. This may be effected mechanically by providing a lug on the lower surface of the arm 7 which may thus be connected by a chain to part of the vehicle power-lift mechanism. The track 8 comprises two fabric-reinforced rubber bands 9 (Fig. 5) which are prestretched in manufacture. The bands 9 are interconnected by cross members 10 having inwardly directed projections 11 adapted to engage between the usual lugs on the tracfor tyre treads. The track of the wheels 6 is variable by interposing spacing blocks and by reversing the wheels, each of which has an attachment flange disposed out of the plane of symmetry of the wheel (Fig. 2, not shown).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO89130D NO89130A (en) | 1954-11-02 | ||
GB3167254A GB817828A (en) | 1954-11-02 | 1954-11-02 | Improvements in or relating to track attachments for tractors |
US543048A US2858171A (en) | 1954-11-02 | 1955-10-27 | Track attachment for wheeled tractors |
DEM28651A DE1003604B (en) | 1954-11-02 | 1955-11-02 | Attachment device for endless tracks on farm tractors u. like |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3167254A GB817828A (en) | 1954-11-02 | 1954-11-02 | Improvements in or relating to track attachments for tractors |
GB953255 | 1955-04-01 | ||
GB2121355 | 1955-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB817828A true GB817828A (en) | 1959-08-06 |
Family
ID=27255387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3167254A Expired GB817828A (en) | 1954-11-02 | 1954-11-02 | Improvements in or relating to track attachments for tractors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB817828A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001060683A1 (en) * | 2000-02-18 | 2001-08-23 | Jlg Industries, Inc. | Half-track assembly with suspended idler |
US7976064B2 (en) | 2004-06-04 | 2011-07-12 | Yaragi Abdulaev | Device for facilitating the movement of a vehicle |
CN109222776A (en) * | 2018-10-09 | 2019-01-18 | 中山市景驰清洁设备科技有限公司 | Device is taken off in a kind of water suction of floor-cleaning machine |
-
1954
- 1954-11-02 GB GB3167254A patent/GB817828A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001060683A1 (en) * | 2000-02-18 | 2001-08-23 | Jlg Industries, Inc. | Half-track assembly with suspended idler |
US7976064B2 (en) | 2004-06-04 | 2011-07-12 | Yaragi Abdulaev | Device for facilitating the movement of a vehicle |
CN109222776A (en) * | 2018-10-09 | 2019-01-18 | 中山市景驰清洁设备科技有限公司 | Device is taken off in a kind of water suction of floor-cleaning machine |
CN109222776B (en) * | 2018-10-09 | 2024-02-09 | 中山市景驰清洁设备科技有限公司 | Water absorption scraping device of floor washing machine |
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