GB1311331A - Back hoe orgrader - Google Patents

Back hoe orgrader

Info

Publication number
GB1311331A
GB1311331A GB1251370A GB1251370A GB1311331A GB 1311331 A GB1311331 A GB 1311331A GB 1251370 A GB1251370 A GB 1251370A GB 1251370 A GB1251370 A GB 1251370A GB 1311331 A GB1311331 A GB 1311331A
Authority
GB
United Kingdom
Prior art keywords
boom
sprocket
pivoted
pivot
dipper
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
Application number
GB1251370A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hopper Inc
Original Assignee
Hopper Inc
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
Application filed by Hopper Inc filed Critical Hopper Inc
Publication of GB1311331A publication Critical patent/GB1311331A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like

Abstract

1311331 Scoop-arm machines HOPPER Inc 16 March 1970 [19 March 1969] 12513/70 Heading E1F A back hoe or grader comprises a boom 15 pivoted at 16, a dipper 18 pivoted on the boom at 17, a work implement 21 including lever 20 pivoted on the dipper at 19, the distance between the pivots 16, 17 being substantially equal to that between the pivots 17, 19, links 44 pivotally connected to the boom and to the levers, rams 23, 25 for moving the boom and dipper, respectively, a first sprocket 54, Fig. 2 (not shown), coaxial with the pivot 16, a second sprocket 53 coaxial with the pivot 17 and connected to the dipper for turning with it, the sprocket 54 having twice the diameter of the sprocket 53 and being coupled to it by an endless chain 55, and means -for securing the sprocket 54 against rotation in one direction to coordinate the actions of the boom and the dipper whereby they move in opposite directions with the angular rate of movement of the dipper relative to the boombeing substantially twice the angular rate of movement of the boom about the pivot 16 so that the pivot 19 moves in a straight line. The ram 23 is pivoted to a subframe 30 which is movable about the pivot 16 by rams 31. The implement 21 includes a bucket 36 pivoted to a block 38 for movement by a rotary hydraulic device 39, Fig. 8 (not shown), and the block is pivoted at 40 on the levers 20 for movement by a second rotary hydraulic device 41. The links 44 are pivotally connected to slide blocks 46 slidably disposed between parallel guides 47 fixed to the boom, for movement by rams 49 from the position shown to a position in which the pivots of the links are coaxial with the pivot 17. The sprocket 54 is mounted on a shaft 58 and can be adjustably fixed to the shaft by a pin 60, Fig. 3 (not shown). An arm 64 is fixed to the shaft and carries a servo pilot valve having a roller 65 which is engageable with a circular stop 67. The servo pilot valve is connected in the circuit of the rams 23, 31 and operates the control valve for these rams, Fig. 10 (not shown).
GB1251370A 1969-03-19 1970-03-16 Back hoe orgrader Expired GB1311331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80844169A 1969-03-19 1969-03-19

Publications (1)

Publication Number Publication Date
GB1311331A true GB1311331A (en) 1973-03-28

Family

ID=25198765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251370A Expired GB1311331A (en) 1969-03-19 1970-03-16 Back hoe orgrader

Country Status (5)

Country Link
US (1) US3576268A (en)
JP (1) JPS502925B1 (en)
DE (1) DE2012567A1 (en)
FR (1) FR2037225B1 (en)
GB (1) GB1311331A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3840128A (en) * 1973-07-09 1974-10-08 N Swoboda Racking arm for pipe sections, drill collars, riser pipe, and the like used in well drilling operations
FR2514051A1 (en) * 1981-10-05 1983-04-08 Komatsu Mfg Co Ltd MECHANICAL SHOVEL WITH HYDRAULIC CONTROL
US5560431A (en) * 1995-07-21 1996-10-01 Caterpillar Inc. Site profile based control system and method for an earthmoving implement
FR2845406B1 (en) * 2002-10-02 2005-04-22 Bernard Coeuret SITE ENGINE COMPRISING A MAT LIFTING MEANS
NL1033260C2 (en) * 2007-01-22 2008-07-23 Bos & Kalis Baggermaatsch Excavator for dredging, has hydraulic cylinder for excavator arm connected to superstructure via rotary bearing with adjustable position
US9458598B2 (en) * 2014-04-24 2016-10-04 Komatsu Ltd. Work vehicle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897986A (en) * 1957-04-25 1959-08-04 Massey Ferguson Inc Mechanical shovel apparatus for transport vehicles
US3165842A (en) * 1962-07-26 1965-01-19 Wain Roy Corp Mechanism for attaching implements to vehicles
GB987637A (en) * 1962-11-05 1965-03-31 Lansing Bagnall Ltd Improvements in or relating to industrial lift trucks
US3343693A (en) * 1965-12-23 1967-09-26 Carl P Becker Bucket control mechanism for power shovels
GB1138399A (en) * 1966-04-07 1969-01-01 Dowty Hydraulic Units Ltd Hydraulically-operated mechanisms suitable for use in digging machines
US3412880A (en) * 1966-11-08 1968-11-26 Massey Ferguson Inc Material-handling boom having straight line motion
US3463335A (en) * 1967-08-28 1969-08-26 Baldwin Lima Hamilton Corp Level-crowd control system for material handling loaders

Also Published As

Publication number Publication date
FR2037225A1 (en) 1970-12-31
JPS502925B1 (en) 1975-01-30
US3576268A (en) 1971-04-27
DE2012567A1 (en) 1970-10-08
FR2037225B1 (en) 1976-01-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee