WO1994020693B1 - Drive mechanism for a vibratory compactor - Google Patents

Drive mechanism for a vibratory compactor

Info

Publication number
WO1994020693B1
WO1994020693B1 PCT/US1994/002223 US9402223W WO9420693B1 WO 1994020693 B1 WO1994020693 B1 WO 1994020693B1 US 9402223 W US9402223 W US 9402223W WO 9420693 B1 WO9420693 B1 WO 9420693B1
Authority
WO
WIPO (PCT)
Prior art keywords
drive shaft
clutch
rod
pulleys
frame
Prior art date
Application number
PCT/US1994/002223
Other languages
French (fr)
Other versions
WO1994020693A3 (en
WO1994020693A2 (en
Filing date
Publication date
Priority claimed from US08/028,318 external-priority patent/US5387052A/en
Application filed filed Critical
Priority to JP6520118A priority Critical patent/JP2928387B2/en
Priority to DE69416301T priority patent/DE69416301D1/en
Priority to EP94909842A priority patent/EP0688380B1/en
Publication of WO1994020693A2 publication Critical patent/WO1994020693A2/en
Publication of WO1994020693A3 publication Critical patent/WO1994020693A3/en
Publication of WO1994020693B1 publication Critical patent/WO1994020693B1/en

Links

Abstract

A vibratory compactor (1) includes a frame (2) which carries a soil compacting plate (4), and a drive mechanism such as a gasoline engine, is mounted on the frame and has a rotatable drive shaft (16). A pair of eccentrically weighted shafts (8, 9) are mounted for rotation on the frame and the weights (11) are in the same phase relation on the shafts. The drive shaft carries a pair of pulleys (18, 19) and single belt (20) connects the pair of pulleys on the drive shaft to pulleys (21, 22) on the eccentric shafts. The drive shaft (16) is connected to the drive shaft pulleys through a centrifugal clutch (17), which acts to selectively connect the drive shaft to one or the other of the drive shaft pulleys to thereby effect toward and reverse travel of the compactor plate of the compactor over the terrain.

Claims

AMENDED CLAIMS[received by the International Bureau on 10 January 1995 (10.01.95); original claim 1 cancelled; original claims 2-17 replaced by new claims 1-16 (4 pages)]
1. A vibratory compactor, comprising a frame, compaction means mounted on the frame and adapted to engage in material to be compacted, drive means mounted on the frame and including a drive shaft, a first support member and a second support member mounted on the drive shaft, a pair of eccentric shafts mounted for rotation on the frame, a third support member connected to a first of said eccentric shafts, a fourth support member connected to a second of said eccentric shafts, and a single end- less flexible connecting member operably connected the first, second, third and fourth support members, said connecting member being constructed and arrange so that both eccentric shafts rotate simultaneously and in the same direction.
2. The compactor claim 1, wherein said support members comprise pulleys and said flexible connecting member is a belt.
3. The compactor of claim 1, and including a clutch means for selectively interconnecting said drive shaft with said first and second support members.
4. The compactor of claim 3, wherein said clutch means is mounted to move between a first position wherein said clutch means provides a connection between said drive shaft and said first support member and a second position where said clutch means provides a connection between said drive shaft and said second support member, and operating means for moving said clutch means between said first and second positions.
5. A vibratory compactor, comprising a frame, compaction means mounted on the frame and adapted to engage a material to be compacted, drive means mounted on the frame and include a drive shaft, a pair of eccentric shafts mounted for rotation on the frame, a first pulley and a second pulley both mounted on said drive shaft, means for selectively connecting each of said pulleys to
AMENDEBSHEET(ARTICLE19) said drive shaft, a third pulley mounted on one of said eccentric shafts, a fourth pulley mounted on the other of said eccentric shafts, and a single endless flexible member interconnecting said first and second pulleys and said third and fourth pulleys.
6. The compactor of claim 5, and including clutch means for selectively interconnecting said drive shaft with said first and second pulleys.
7. The compactor of claim 6, wherein said clutch means comprises a clutch member mounted for axial movement on said drive shaft from a first position where said clutch member is engageable with said first pulley to a second position where said clutch member is engageable with said second pulley.
8. The compactor of claim 7, wherein said clutch member is movable radially when in each of said positions by centrifugal force on rotation of said drive shaft from an inner disengaged position to an outer engaged position where said clutch member will engage the respective pulley.
9. The compactor of claim 1, wherein each eccentric shaft includes a weight mounted eccentrically on the axis of said shaft, said eccentric weights being in the same phase relation on the respective eccentric shafts.
10. A vibratory compactor, comprising a frame, compaction means mounted on the frame and adapted to engage material to be compacted, drive means adapted to engage material to be compacted, drive means mounted on the frame and including a drive shaft, a pair of eccen¬ tric shafts mounted for rotation on the frame, a first pulley and a second pulley mounted on the drive shaft, a third pulley mounted on one of said eccentric shafts, a fourth pulley mounted on the other of said eccentric shafts, a single belt interconnecting said first, second, third and fourth pulleys, said belt being constructed and arranged to drive said third and fourth pulleys in the same direction, centrifugal clutch means for selectively engaging said drive shaft with said first and second pulleys whereby engagement of said drive shaft with said first pulley will operate through said belt to drive said third and fourth pulleys in one direction and engagement of said drive shaft with said second pulley will operate through said belt to drive said third and fourth pulleys in the opposite direction.
11. A centrifugal clutch construction, com¬ prising drive shaft means, a pair of driven members mounted for rotation on said drive shaft means, a clutch member mounted for axially movement relative to said drive shaft means from a first position where said clutch member is radially aligned with a first of said driven members to a second position where said clutch member is radially aligned with a second of said driven members, operating means for selectively moving said clutch member from between first and second positions, said clutch member being constructed and arranged to be moved out¬ wardly by centrifugal force on rotation of said drive shaft means to affect engagement with the respective driven member.
12. The clutch construction of claim 11, and including a plurality of said clutch members circumfer- entially spaced around said drive shaft means.
13. The clutch construction claim 11, and including biasing means for biasing said clutch member inwardly toward said drive shaft means.
14. The clutch construction of claim 11, wherein said operating means comprises an operating rod disposed parallel to said drive shaft means and slidably disposed within an opening in said drive shaft means, said rod being connected to said clutch member, means for permitting radial movement of said clutch member relative to said rod, one end of said rod projecting beyond an end of said drive shaft means, and actuating means connected to said rod for moving said rod axially to thereby shift 17
said clutch member between said first and second posi¬ tions.
15. A centrifugal clutch construction com¬ prising a drive shaft, a pair of hubs connected to said drive shaft, a driven member journaled on each hub, a radially extending face of each hub having a recess, said recesses facing each other in mating relation, a clutch member mounted for axially movement relative to said drive shaft and shiftable between said recesses, a rod disposed parallel to said drive shaft and extending freely through aligned openings in said hubs, means for connecting said rod to said clutch member to effect shifting of said clutch member between said recesses on axially movement of said rod, means for permitting radi¬ ally movement of said clutch member relative to said rod, an end of said rod projecting beyond a one of said hubs, operating means connected to said end of said rod for moving said rod axially and thereby shifting said clutch member between said recesses, said clutch member being constructed and arranged to move radially outward under centrifugal force on rotation of said drive shaft to thereby cause engagement of said clutch member with the respective driven member, and biasing means for biasing the clutch member inwardly toward said drive shaft.
16. The clutch construction of claim 15, wherein said operating means comprises an operating member mounted in axially alignment with said drive shaft, and journaling means for connecting said operating member to said rod whereby said rod can rotate about the axis of said operating member.
PCT/US1994/002223 1993-03-09 1994-03-01 Drive mechanism for a vibratory compactor WO1994020693A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6520118A JP2928387B2 (en) 1993-03-09 1994-03-01 Drive mechanism for vibration compaction machine
DE69416301T DE69416301D1 (en) 1993-03-09 1994-03-01 DRIVE MECHANISM FOR COMPRESSOR
EP94909842A EP0688380B1 (en) 1993-03-09 1994-03-01 Drive mechanism for a vibratory compactor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/028,318 US5387052A (en) 1993-03-09 1993-03-09 Drive mechanism for a vibratory compactor
US08/028,318 1993-03-09

Publications (3)

Publication Number Publication Date
WO1994020693A2 WO1994020693A2 (en) 1994-09-15
WO1994020693A3 WO1994020693A3 (en) 1994-12-22
WO1994020693B1 true WO1994020693B1 (en) 1995-02-09

Family

ID=21842774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/002223 WO1994020693A2 (en) 1993-03-09 1994-03-01 Drive mechanism for a vibratory compactor

Country Status (6)

Country Link
US (1) US5387052A (en)
EP (1) EP0688380B1 (en)
JP (1) JP2928387B2 (en)
DE (1) DE69416301D1 (en)
MX (1) MX9401695A (en)
WO (1) WO1994020693A2 (en)

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