US1922357A - Tumbler for crawling traction mechanism - Google Patents

Tumbler for crawling traction mechanism Download PDF

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Publication number
US1922357A
US1922357A US617596A US61759632A US1922357A US 1922357 A US1922357 A US 1922357A US 617596 A US617596 A US 617596A US 61759632 A US61759632 A US 61759632A US 1922357 A US1922357 A US 1922357A
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Prior art keywords
tumbler
side wall
recess
walls
openings
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Expired - Lifetime
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US617596A
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James J Divney
Jacoby Benjamin
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Marion Steam Shovel Co
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Marion Steam Shovel Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D55/00Endless track vehicles
    • B62D55/08Endless track units; Parts thereof
    • B62D55/12Arrangement, location, or adaptation of driving sprockets
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S474/00Endless belt power transmission systems or components
    • Y10S474/901Pulley or guide roll for track of endless track vehicle

Definitions

  • This invention relates to a tumbler for a crawling traction mechanism.
  • a crawling traction mechanism comprises an endless track made up of a plurality of pivotally connected links or treads and extending about an idler drum at one end of the mechanism and about a rotatabledriving-member at the other end of the mechanism.
  • the driving member is in the nature of a sprocket wheel and is commonly called a tumbler.
  • each tread has an inwardly extending tooth which enters a recess or socket in the tumbler to establish driving con,- nection between the track and the tumbler.
  • One object of the present invention is to provide a tumbler which will be self-cleaning, that is, of such a character that mud or other matter entering. the recesses. will be automatically ejected. l r
  • a further object of the invention is to provide such aftumbler which will be of astrong durable construction in which the driving lugs or teeth between adjacent recesseswill be strongly braced.
  • a further-object of the invention is: to provide such a tumbler in which the recesses will have lateral openings to permit of the escape of mud and thelikeand whichwill have continuous rollingcontact with the track.
  • r r l l A further objectof the invention is to provide such a tumbler which will be simple in construction and easy toproduce.
  • g i l Other objects of the invention will appear as thedevice is described, in detail? l l In the accompanying drawing Fig. lis agside elevation of a tumbler embodying-our invention;
  • Fig. 2 is, a transverse sectional view taken centrally through sucha tumbler; and Fig. 3 is an edgeview of aportion of the tumbler.
  • the tumbler comprises a body portion having a central hub 5 from which extend two circumferential side walls 6 and 7, these side walls being spaced one from the other.
  • the peripheral edges of these side walls constitute the surfaces which 3 contact with the track and which supportithe tubler'on the track.
  • a circumferential series of transverse projections or driving lugs 8 extend alternately from the respective side walls and divide the space between the side walls into recesses Eachrecess is provided near its ends with lateral openings formed in the oppositeside walls, each lateral opening of each recess being opposite a closed portion, of the other side wall thereof.
  • each side wall is formed with a series of peripheral openings 10 which are separated one from the other by solid portions or projections 11, the projections being preferably of a circumferential length slightly greater than the lengthof the openings.
  • each side wall is arranged opposite the openings in the other side wall and because of the greater length of the projections the ends of the projections or side walls onopposite sides of each recessextend in opposite directions slightly beyond a transverse line betweenthe ends of the recess, so that the end portions of adjacent projections on opposite sides thereofwill slightly overlap and provide a ;continuous rolling support fonthe tumbler.
  • Transverse walls 12 extend from each solid portion or projection, ona line spaced some distance from thejperipheral edge of that solid portion, to the inner'edge of the opposite opening and con stitute bottom walls of the recesses, these bottom walls being preferably inclined to facilitate the ejection of mud or other matter from the recesses,
  • the driving lugs 8 are arranged substantially midway between the ends of the re-. spective projections, and consequently are sub stantially midway between the ends of the opposed openings 10.
  • the adjacent bottom walls slope in opposite directions, as shown in Fig. 2, so that the bottom of one end of each recess slopes toward one side, of the tumbler and the bottom of the other end of that recess slopes toward the other side of the tumbler.
  • bottom walls are spacedfrom the peripheral edges of the side walls a distance sufficient to enable the tooth ordriving projections on the tread ofthe track to fully enter the recess and, in the present construction, they are spaced some distance from the hub but their position with relation to the hub will depend largely upon the size and other characteristics of the tumbler,
  • the outer enderably cast in one piece and the driving lugs are thus integral with the respective side walls and those parts of the side walls which project beyond the driving lugs serve to rigidly brace the lugs against the strain to which their outer ends are subjected.
  • a body portion carried by said body portion and spaced apart, each side wall having a seriesof openings spaced about the same near the periphery thereof, each opening being ar ranged opposite a closed portion of the other side wall, a driving lug extending from each closed portion of each side wall toward an opening in the other side wall and arranged between the ends of said opening, and transverse walls extending from the respective closed portions of each side wall to the corresponding openings in 'the other side wall.
  • each side wall carried by said body portion and spaced apart, each side wall having a series of openings spaced about the same near the periphery thereof, each opening being arranged opposite a closed portion of the other side wall, inclined bottom walls extending from the respective closed portions of each side wall to the inner portions of the-corresponding openings in the other side wall, and a driving lug carried by each bottom wall and the adjacent closed portionof-oneof said side walls and spaced for each end of said closed portion.
  • each-side wall comprising a circumferential-series of projections spacedone from the otherby peripheral openings in said side wall, the projections of each side wall being-opposite the respective openings in theother side wall, a transverse wall extending fromeach projection to the inner edge of the-opposite opening, and'a driving lug extending outwardly from an intermediate portion of each transverse wall between the adjacent projection and the opening opposite the same.
  • each side wall comprising a circumferential series of projections spaced one from the other by peripheral openings in said side wall, the projections of each-side wall being opposite the respective openings in the other side wall, a transverse wall extending from each projection to the inner edge of the opposite opening, and a driving lug extending outwardly from each transverse wall, having one lateral edge secured to an intermediate portion of the adjacent projection and having its other lateral edge in line with the opening opposite said projection.
  • each recess having at one side thereof .a wall extending from the lug at one end of said recess and having at its other side a wall extending from the lug at the other end of said recess, said walls being of a length less than the length of said recess and of a width equal to the depthof said recess, wherebyeach recess -is provided at its respective ends with oppositely facing lateral openings opposed to the respective walls.
  • a rotatable element having a circumferential series of driving lugs dividing the periphery thereof into recesses, each recess having at one side thereof a wallextending from the lug at one end of said recess and having at its other side a wall ex-- tending from the lug at the other end of said recess, said walls being of a length less than the length of said recess, whereby each recess is provided at its respective ends with oppositely facing lateral openings, the two walls of each recess terminating near the same transverse line between the ends of said recess to provide a continuous support for said rotatable element as the latter rotates.
  • a body portion and'circumferential side walls carried by said body portion and spaced one from the other, driving lugs-dividingthe space between said sidewalls into peripheral recesses, and bottom walls for said recesseaeach side wall having a series-of openings so arranged that each opening in each side wall is opposite a closed portion of the other side wall and cornmunicates'with the adjacent ends of -two-of said recesses.
  • a body portion and circumferential side walls carried by said body portion and spaced one from the other, driving lugs dividing the space'between said side walls 'into peripheral recesses, and bottom walls for said recesses, each side wall having a series of openings so arranged that each opening in each side wall is opposite a closed portion of the other sidewall and communicates with the adjacent ends of two of said recesses, the closed portions of the side walls of each recess extending in'opposite directions beyond a transverse'line between theends of said recess.
  • a tumbler of the character described comprising a series of 'i-shaped sections arranged in staggered relation about the periphery of said tumbler, alternate sections having their side portions-adjacent to the opposite sides of saidtumbler, "the sections at each side of said tumbler being spaced circumferentially one from the other and the transverse-portion of each section extending from the side portion thereof toward a space between adjacent sections at the other side of said tumbler.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Soil Working Implements (AREA)

Description

x- 15, J. .1. DIVNEY ET AL 1,922,357
TUMBLER FOR CRAWLING TRACTION MECHANISM Fild June 16. 1. 32
M77271 lll% //VVNTOR. JJ. D/VNEY B. JACOB).
ATTOk/Vf Y Patented Aug. 15, 1933 TUMBLER FOR CRAWLING TRACTION MECHANISM James J. Divney and Benjamin Jacoby,
Marion,
Ohio, assignors to The Marion Steam Shovel Company, Ohio Marion, Ohio, a Corporation of Application June'16,"1932. Serial No. 617,596 10'Claims.- (01. 74-41) This invention relates to a tumbler for a crawling traction mechanism. As is wellknown a crawling traction mechanism comprises an endless track made up of a plurality of pivotally connected links or treads and extending about an idler drum at one end of the mechanism and about a rotatabledriving-member at the other end of the mechanism. 7 The driving member is in the nature of a sprocket wheel and is commonly called a tumbler. Usually each tread has an inwardly extending tooth which enters a recess or socket in the tumbler to establish driving con,- nection between the track and the tumbler.
One object of the present invention is to provide a tumbler which will be self-cleaning, that is, of such a character that mud or other matter entering. the recesses. will be automatically ejected. l r
A further object of the invention is to provide such aftumbler which will be of astrong durable construction in which the driving lugs or teeth between adjacent recesseswill be strongly braced.
A further-object of the inventionis: to provide such a tumbler in which the recesses will have lateral openings to permit of the escape of mud and thelikeand whichwill have continuous rollingcontact with the track. r r l l A further objectof the invention is to provide such a tumbler which will be simple in construction and easy toproduce. g i l Other objects of the invention will appear as thedevice is described, in detail? l l In the accompanying drawing Fig. lis agside elevation of a tumbler embodying-our invention;
1 Fig. 2 is, a transverse sectional view taken centrally through sucha tumbler; and Fig. 3 is an edgeview of aportion of the tumbler. In the drawing we have illustrated one embodiment of our invention but it will be understood that this particular embodiment ha's'been chosen for the purposes of illustration onlyand that the structure may take various forms without departing from the spirit of the invention.
In the particular embodiment here illustrated the tumbler comprises a body portion having a central hub 5 from which extend two circumferential side walls 6 and 7, these side walls being spaced one from the other. The peripheral edges of these side walls constitute the surfaces which 3 contact with the track and which supportithe tubler'on the track. A circumferential series of transverse projections or driving lugs 8 extend alternately from the respective side walls and divide the space between the side walls into recesses Eachrecess is provided near its ends with lateral openings formed in the oppositeside walls, each lateral opening of each recess being opposite a closed portion, of the other side wall thereof. In the present construction the transverse projections and side walls are so arranged as to form a series of T-shapedsectlons spaced apart about the periphery of the tumbler, alternate T-shaped sections facing in opposite directions. For this purpose each side wall is formed with a series of peripheral openings 10 which are separated one from the other by solid portions or projections 11, the projections being preferably of a circumferential length slightly greater than the lengthof the openings. The solid-portions or projections of each side wall are arranged opposite the openings in the other side wall and because of the greater length of the projections the ends of the projections or side walls onopposite sides of each recessextend in opposite directions slightly beyond a transverse line betweenthe ends of the recess, so that the end portions of adjacent projections on opposite sides thereofwill slightly overlap and provide a ;continuous rolling support fonthe tumbler. Transverse walls 12; extend from each solid portion or projection, ona line spaced some distance from thejperipheral edge of that solid portion, to the inner'edge of the opposite opening and con stitute bottom walls of the recesses, these bottom walls being preferably inclined to facilitate the ejection of mud or other matter from the recesses, ,The driving lugs 8 are arranged substantially midway between the ends of the re-. spective projections, and consequently are sub stantially midway between the ends of the opposed openings 10. The adjacent bottom walls slope in opposite directions, as shown in Fig. 2, so that the bottom of one end of each recess slopes toward one side, of the tumbler and the bottom of the other end of that recess slopes toward the other side of the tumbler. These bottom walls are spacedfrom the peripheral edges of the side walls a distance sufficient to enable the tooth ordriving projections on the tread ofthe track to fully enter the recess and, in the present construction, they are spaced some distance from the hub but their position with relation to the hub will depend largely upon the size and other characteristics of the tumbler, The outer enderably cast in one piece and the driving lugs are thus integral with the respective side walls and those parts of the side walls which project beyond the driving lugs serve to rigidly brace the lugs against the strain to which their outer ends are subjected.
When the tumbler is rotated it will travel over the endless track, as shown at 14, in Fig. 1, and the teeth 15 on the treads of the track will enter the successive recesses. Should any mud or other matter have found its way into the-recesses-in objectionable quantities it will be engaged by the teeth 15 and forced from the recesses through the lateral openings 10, thus preventing the mud from accumulating in the recesses in such quantities as to in any way interfere with the normal operation of the mechanism. 7
Having now fully described our invention, What we claim as new and desire to secure by Letters Patent is:
1. In a tumbler of the character described, a body portion, side walls carried by said body portion and spaced apart, each side wall having a seriesof openings spaced about the same near the periphery thereof, each opening being ar ranged opposite a closed portion of the other side wall, a driving lug extending from each closed portion of each side wall toward an opening in the other side wall and arranged between the ends of said opening, and transverse walls extending from the respective closed portions of each side wall to the corresponding openings in 'the other side wall.
2. In a tumbler of the character described, a
1 body portion, side walls carried by said body portion and spaced apart, each side wall having a series of openings spaced about the same near the periphery thereof, each opening being arranged opposite a closed portion of the other side wall, inclined bottom walls extending from the respective closed portions of each side wall to the inner portions of the-corresponding openings in the other side wall, and a driving lug carried by each bottom wall and the adjacent closed portionof-oneof said side walls and spaced for each end of said closed portion.
3. In a tumbler of the character described, a body portion and substantially vertical spaced side walls carried by said body portion, each-side wall comprising a circumferential-series of projections spacedone from the otherby peripheral openings in said side wall, the projections of each side wall being-opposite the respective openings in theother side wall, a transverse wall extending fromeach projection to the inner edge of the-opposite opening, and'a driving lug extending outwardly from an intermediate portion of each transverse wall between the adjacent projection and the opening opposite the same.
4. In a tumbler of the character described, a body portion and substantially vertical spaced side walls carried by said body portion, each side wall comprising a circumferential series of projections spaced one from the other by peripheral openings in said side wall, the projections of each-side wall being opposite the respective openings in the other side wall, a transverse wall extending from each projection to the inner edge of the opposite opening, and a driving lug extending outwardly from each transverse wall, having one lateral edge secured to an intermediate portion of the adjacent projection and having its other lateral edge in line with the opening opposite said projection.
5. In a tumbler of the character described, a
one of said projections to the inner edge of the opposite opening, and a driving lug extending outwardly fromeach transverse wall between the ends thereof.
6. Ina tumbler of the character described, a
rotatable element having a circumferential series of driving lugs dividing theperiphery thereof into recesses, each recess having at one side thereof .a wall extending from the lug at one end of said recess and having at its other side a wall extending from the lug at the other end of said recess, said walls being of a length less than the length of said recess and of a width equal to the depthof said recess, wherebyeach recess -is provided at its respective ends with oppositely facing lateral openings opposed to the respective walls.
-7. In a tumbler of the character described, a rotatable element having a circumferential series of driving lugs dividing the periphery thereof into recesses, each recess having at one side thereof a wallextending from the lug at one end of said recess and having at its other side a wall ex-- tending from the lug at the other end of said recess, said walls being of a length less than the length of said recess, whereby each recess is provided at its respective ends with oppositely facing lateral openings, the two walls of each recess terminating near the same transverse line between the ends of said recess to provide a continuous support for said rotatable element as the latter rotates.
8. In a tumbler of the-character described, a body portion, and'circumferential side walls carried by said body portion and spaced one from the other, driving lugs-dividingthe space between said sidewalls into peripheral recesses, and bottom walls for said recesseaeach side wall having a series-of openings so arranged that each opening in each side wall is opposite a closed portion of the other side wall and cornmunicates'with the adjacent ends of -two-of said recesses.
9. In a tumbler of the character described, a body portion, and circumferential side walls carried by said body portion and spaced one from the other, driving lugs dividing the space'between said side walls 'into peripheral recesses, and bottom walls for said recesses, each side wall having a series of openings so arranged that each opening in each side wall is opposite a closed portion of the other sidewall and communicates with the adjacent ends of two of said recesses, the closed portions of the side walls of each recess extending in'opposite directions beyond a transverse'line between theends of said recess.
10. A tumbler of the character described comprising a series of 'i-shaped sections arranged in staggered relation about the periphery of said tumbler, alternate sections having their side portions-adjacent to the opposite sides of saidtumbler, "the sections at each side of said tumbler being spaced circumferentially one from the other and the transverse-portion of each section extending from the side portion thereof toward a space between adjacent sections at the other side of said tumbler. j
' BENJAMIN J-ACOBY.
JAMES J. DIVNEY.
iii)
US617596A 1932-06-16 1932-06-16 Tumbler for crawling traction mechanism Expired - Lifetime US1922357A (en)

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218932A (en) * 1977-04-29 1980-08-26 The Gates Rubber Company Belt sprocket wheel
EP0058520A2 (en) * 1981-02-12 1982-08-25 Ruston-Bucyrus Limited Tread belt link and cooperating drive tumbler
US5026328A (en) * 1989-05-19 1991-06-25 Tokai Kogyo Kabushiki Kaisha Belt driving sprocket in paper feeder
US5769512A (en) * 1996-09-20 1998-06-23 Caterpillar Inc. Slotted drive wheel for endless ground engaging belted tracks
US6371579B1 (en) * 1999-04-15 2002-04-16 Otico Wheels for tracks
US6543862B1 (en) * 2000-07-28 2003-04-08 Agtracks, Inc. Drive wheel for track apparatus
US20050082070A1 (en) * 2003-10-21 2005-04-21 Ati, Inc. Earth scraper with track apparatus
US20080190462A1 (en) * 2007-02-08 2008-08-14 Habasit Ag Sprocket For Easy Cleaning
US20090050185A1 (en) * 2007-02-08 2009-02-26 Dieter Guldenfels Cleaning-in-place system
US20110061693A1 (en) * 2007-02-08 2011-03-17 Marco Lucchi Cleaning-In-Place System For Flat Belts
US20110094856A1 (en) * 2007-02-08 2011-04-28 Dieter Guldenfels Modular Belt Sprocket For Easy Cleaning
US20130116074A1 (en) * 2011-11-08 2013-05-09 Chang Hui Lin Sprocket wheel for bicycle
US20140221140A1 (en) * 2011-09-13 2014-08-07 Meccanica Generale - S.R.L. Plastic pulley for driving drum for washing machine into rotation
US20150060242A1 (en) * 2013-08-27 2015-03-05 System Plast S.r.I. Conveyor system devices with contaminant removal features
US8997975B2 (en) 2010-08-13 2015-04-07 Habasit Ag Sprockets for a flexible conveyor belt and conveyor belt system
US20230204092A1 (en) * 2020-04-21 2023-06-29 Gorenje Gospodinjski Aparati, D.O.O. Washing machine belt pulley made of a plastic material

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218932A (en) * 1977-04-29 1980-08-26 The Gates Rubber Company Belt sprocket wheel
EP0058520A2 (en) * 1981-02-12 1982-08-25 Ruston-Bucyrus Limited Tread belt link and cooperating drive tumbler
EP0058520A3 (en) * 1981-02-12 1983-10-26 Ruston-Bucyrus Limited Tread belt link and cooperating drive tumbler
US5026328A (en) * 1989-05-19 1991-06-25 Tokai Kogyo Kabushiki Kaisha Belt driving sprocket in paper feeder
US5769512A (en) * 1996-09-20 1998-06-23 Caterpillar Inc. Slotted drive wheel for endless ground engaging belted tracks
US6371579B1 (en) * 1999-04-15 2002-04-16 Otico Wheels for tracks
US6543862B1 (en) * 2000-07-28 2003-04-08 Agtracks, Inc. Drive wheel for track apparatus
EP1493652A1 (en) * 2000-07-28 2005-01-05 Agtracks, Inc. Track apparatus
US20050082070A1 (en) * 2003-10-21 2005-04-21 Ati, Inc. Earth scraper with track apparatus
US7077216B2 (en) 2003-10-21 2006-07-18 Ati, Inc. Earth scraper with track apparatus
US20110061693A1 (en) * 2007-02-08 2011-03-17 Marco Lucchi Cleaning-In-Place System For Flat Belts
US9850072B2 (en) 2007-02-08 2017-12-26 Habasit Ag Cleaning-in-place system for flat belts
US20080190462A1 (en) * 2007-02-08 2008-08-14 Habasit Ag Sprocket For Easy Cleaning
US20110094856A1 (en) * 2007-02-08 2011-04-28 Dieter Guldenfels Modular Belt Sprocket For Easy Cleaning
US20120073936A1 (en) * 2007-02-08 2012-03-29 Dieter Guldenfels Sprocket for Easy Cleaning
US8668075B2 (en) 2007-02-08 2014-03-11 Habasit Ag Cleaning-in-place system
US8776989B2 (en) 2007-02-08 2014-07-15 Habasit Ag Modular belt sprocket for easy cleaning
US20090050185A1 (en) * 2007-02-08 2009-02-26 Dieter Guldenfels Cleaning-in-place system
US9115802B2 (en) * 2007-02-08 2015-08-25 Habasit Ag Sprocket for easy cleaning
US8997975B2 (en) 2010-08-13 2015-04-07 Habasit Ag Sprockets for a flexible conveyor belt and conveyor belt system
US20140221140A1 (en) * 2011-09-13 2014-08-07 Meccanica Generale - S.R.L. Plastic pulley for driving drum for washing machine into rotation
US9085846B2 (en) * 2011-09-13 2015-07-21 Meccanica Generale—S.R.L. Plastic pulley for driving drum for washing machine into rotation
US20130116074A1 (en) * 2011-11-08 2013-05-09 Chang Hui Lin Sprocket wheel for bicycle
US20150060242A1 (en) * 2013-08-27 2015-03-05 System Plast S.r.I. Conveyor system devices with contaminant removal features
US9415943B2 (en) * 2013-08-27 2016-08-16 System Plast S.R.L. Conveyor system devices with contaminant removal features
US20230204092A1 (en) * 2020-04-21 2023-06-29 Gorenje Gospodinjski Aparati, D.O.O. Washing machine belt pulley made of a plastic material
US11892070B2 (en) * 2020-04-21 2024-02-06 Gorenje Gospodinjski Aparati, D.O.O. Washing machine belt pulley made of a plastic material

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