EP1943438A1 - Disengageable belt drive assemblies for pavement saws - Google Patents
Disengageable belt drive assemblies for pavement sawsInfo
- Publication number
- EP1943438A1 EP1943438A1 EP06719859A EP06719859A EP1943438A1 EP 1943438 A1 EP1943438 A1 EP 1943438A1 EP 06719859 A EP06719859 A EP 06719859A EP 06719859 A EP06719859 A EP 06719859A EP 1943438 A1 EP1943438 A1 EP 1943438A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- pulley
- engine
- tension
- driven
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/12—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of drives for circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/045—Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/0827—Means for varying tension of belts, ropes, or chains for disconnecting the drive
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/14—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
Definitions
- the present invention generally relates to belt drives and, in particular,
- pavement saw belt drives that are capable of being disengaged.
- a pavement saw is a device used to cut through a slab of pavement and/or
- pavement saw used to cut grooves/slots within pavement surfaces.
- One type of pavement saw is a
- a typical pavement saw used to cut concrete surfaces.
- a typical pavement saw has a
- the pavement saw typically rests directly upon the pavement
- the saw blade is configured to descend into the cut location
- the saw blade first must be retracted (raised out of) from the cut. After retraction, the exposed, spinning blade presents considerable danger to the saw
- disengageable belt drive may
- a belt encircles a moveable drive pulley and a fixed driven
- the circumference of the belt is chosen so that when the drive pulley is in a
- the belt is taut about the drive pulley and the driven pulley, and when
- the shroud is positioned so that when the belt is not
- FIG. 1 is a side view of a first embodiment of the invention, showing the
- Fig. 2. is a partial, perspective detail view of a second embodiment of the
- FIG. 3 is a partial, side view of a third embodiment of the invention.
- Fig. 4 is a partial, second side view of the embodiment of Fig. 3 showing
- Fig. 5 is a first side view of a fourth embodiment of the present invention.
- Fig. 6 is a second side view of the embodiment of Fig. 5, showing the belt
- Fig. 7 is a partial side view of a fifth embodiment of the present invention.
- FIG. 1, 3 - 7 presents side views of various embodiments of the present
- FIG. 2 showing a close-up (partial
- FIG. 1 A first embodiment is shown in Fig. 1. Referring to Fig. 1, a representative
- pavement saw 10 (presented in a simple form) has a frame 12 that supports the components of the pavement saw.
- a pivot mount 14 is rigidly attached to the frame
- a power source/motor/engine 16 is attached to pivot mount 14 so that engine 16
- portions are moved/pivoted relative to the engine portion, among other ways.
- This embodiment's preferred actuator 18 being a hydraulic cylinder.
- actuator 18 essentially working as a tension controller, controlling the tension of the
- engine 16 drives a first (drive) pulley 20, which in
- saw blade 26 The locations of second pulley 24 and saw blade 26 are preferably
- first pulley 20 generally fixed relative to frame 12, whereas the location of the first pulley 20 is not.
- the first pulley 20 able to move (pivot, slide, rotate, etc.) closer to and/or further
- a braking surface or "shroud" 28 is preferably provided which extends
- adjustable brake shoes 199 It is further preferred that at least a portion of the
- braking surface extend preferably in a plane generally perpendicular to a reference
- shroud 28 is shown in Fig. 2.
- Shroud 28 need not be perfectly symmetric about
- FIGs. 3 and 5 show the disengagement of the belt drive, whereas Figs. 1, 4,
- pulley 20 away from pulley 24 until belt 22 is taut there between.
- actuator 18 is extended to disengage the belt drive
- pulley 20 is in a position free of belt tension, the tension of belt 22 is relaxed and
- centrifugal force drives belt 22 outward where it engages and contacts the inner
- pulley 20 and/or pulley 24 are examples of pulley 20 and/or pulley 24.
- the actuator is a hydraulic cylinder.
- the belt drive is engaged by retracting
- FIG. 5 Yet another embodiment is shown in Figs. 5 and 6. Referring to Fig. 5, a
- representative pavement saw 10 has a frame 12 that supports the components of the
- the clutch function is controlled through use of a belt tensioner 50.
- This belt tensioner comprising a pair of spaced idler pulleys, namely a first idler
- This belt tensioner 50 configured for rotation
- the belt 22 has slack and thus the continual rotation of the drive pulley
- drive pulley drives the driven pulley and its attached saw blade.
- the tension controller 50 comprising a pair of spaced pulleys
- the tension controller 50 configured for rotation in a first direction whereby the spaced pulleys (51, 52) can both engage
- the tension controller 50 controls the tension of the belt 22 thereby tensioning the belt 22.
- the drive pulley 20 need not be directly driven by the engine. In an
- the engine drives the dr,ive pulley through a transmission
- the engine may or may not
- the actuator is connected to the transmission, and rotates the
- this embodiment utilizes at least one adjustable brake shoe 199.
- Fig. 7 this embodiment utilizes at least one adjustable brake shoe 199.
- the brake shoes 199 contact and stop the
- shoes opposing one another on each side of the belt are used. These shoes are adjustable so that if different size pulley configurations are used (for different blade
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73367105P | 2005-11-03 | 2005-11-03 | |
PCT/US2006/003196 WO2007053168A1 (en) | 2005-11-03 | 2006-01-26 | Disengageable belt drive assemblies for pavement saws |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1943438A1 true EP1943438A1 (en) | 2008-07-16 |
Family
ID=36604785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06719859A Withdrawn EP1943438A1 (en) | 2005-11-03 | 2006-01-26 | Disengageable belt drive assemblies for pavement saws |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1943438A1 (en) |
CN (1) | CN101300437A (en) |
WO (1) | WO2007053168A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106122403B (en) * | 2016-06-30 | 2019-01-15 | 嘉善优联物流装备有限公司 | A kind of driving mechanism of adjustable speed |
CN106382875A (en) * | 2016-11-14 | 2017-02-08 | 宁波博信机械制造有限公司 | Belt length testing fixture |
US11549571B2 (en) * | 2018-08-29 | 2023-01-10 | Illinois Tool Works Inc. | Belt tensioning apparatus for material removal machines |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1234202A (en) * | 1959-05-09 | 1960-10-14 | Advanced washing and wringing machines | |
US4324552A (en) * | 1980-03-14 | 1982-04-13 | Deere & Company | Belt drive system with clutch |
EP0092077B1 (en) * | 1982-04-20 | 1987-09-16 | Ferag AG | Mobile machine shaft drive system |
FR2559226A1 (en) * | 1984-02-03 | 1985-08-09 | Lurem Sa | BELT DRIVE DEVICE AND WOOD MACHINE HAVING APPLICATION |
DE10312514A1 (en) * | 2003-03-20 | 2004-12-02 | Ina-Schaeffler Kg | traction drive |
-
2006
- 2006-01-26 WO PCT/US2006/003196 patent/WO2007053168A1/en active Application Filing
- 2006-01-26 EP EP06719859A patent/EP1943438A1/en not_active Withdrawn
- 2006-01-26 CN CNA2006800409515A patent/CN101300437A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2007053168A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101300437A (en) | 2008-11-05 |
WO2007053168A1 (en) | 2007-05-10 |
WO2007053168A8 (en) | 2009-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080411 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BATEMAN, NATHANIEL, GODY Inventor name: THORNTON, KEN |
|
17Q | First examination report despatched |
Effective date: 20090204 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20120307 |