US3605514A - Cutter chain and method of assembly - Google Patents
Cutter chain and method of assembly Download PDFInfo
- Publication number
- US3605514A US3605514A US812760A US3605514DA US3605514A US 3605514 A US3605514 A US 3605514A US 812760 A US812760 A US 812760A US 3605514D A US3605514D A US 3605514DA US 3605514 A US3605514 A US 3605514A
- Authority
- US
- United States
- Prior art keywords
- pintle
- portions
- flat
- central portion
- cutter
- 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 - Lifetime
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Classifications
-
- 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
- E21C25/28—Chains or chain guides
- E21C25/34—Chains
- E21C25/36—Couplings for links
Definitions
- the present invention relates to cutter chains such as those used in coal cutters and ripper chain mining machines, which chains are made up of a plurality of saddle type bit carrying links alternating with and connected together by insertion type connector links. All of said links being flexibly attached to adjacent links by pintles nonrotatively held in a bit link and rotatively engaged by adjacent connector links.
- the cutter chains of this invention are quite similar to those shown and described in U.S. Patent 2,956,442 (Krekler).
- the pintle of this invention provides for easier assembly of links and connectors than was possible with recessed pins of the prior art because the design of the pintle of this invention although providing a recessed central portion does provide on that same side of the pintle a continuous fiat surface opposed to a diametrically opposite smooth cylindrical surface so that at no point in the insertion of the pintle is there looseness between the bit link openings and the pintle being inserted.
- FIG. 1 is a three-dimensional oblique view at approximately full size of a pintle constructed according to the principles of this invention
- FIG. 2 is a sectional view taken substantially on line 22 of FIG. 1;
- FIG. 3 is a smaller scale side elevational view of a portion of a cutter chain constructed according to the principles of this invention.
- FIG. 4 is a sectional view taken substantially on line 4-4 of FIG. 3;
- FIG. 5 is an enlarged fragmentary sectional view taken substantially on line 55 of FIG. 4.
- FIG. 3 shows a portion of a cutter chain generally indicated at comprising a plurality of cutter bit links 12 and connector links 14 flexibly fastened together by pintles 16 to form a flexible chain in a manner well known in the art.
- the bit links 12 are provided with bit receiving sockets (not shown) and suitable bit fastening means such as set screws (also not shown) in a well known manner.
- the bit links 12 are of the saddle type having at each end thereof a pair of cheeks 13 spaced apart to receive one end of the connector 14 between the cheeks 13 at either end of the bit link 12.
- the pair of cheeks 13 at one end of a bit link 12 have respective coaxial openings 18 therein of noncircular outline shown as D-shaped with a flat surface 19 on the side of the opening nearest the center line of the respective link.
- the pintles 16 Extending through the cheek openings 18 and slidably received therein are the pintles 16 having D-shaped end portions 20 having major surface portions 20' of circularly curved outline combined with coplanar flat surface portions 21 so that the end portions 20 are of the same shape as the cheek openings 18 and the pintles 16 are non-rotatively held by the cheeks 13 due to the non-circular nature of the cheek openings 18 and the end portions 20 are preferably dimensioned to form a driving fit with the cheek openings 18 to retain the pintles 16 in the respective bit link.
- the curved portions 20 have a common axis 16' considered to be the central axis of the pintle 16.
- the central portion 24 of the pintle 16 has four surface portions as hereinafter described.
- a surface portion 24' amounting to approximately one-half of the surface of the central portion 24 (to to the left as seen in FIGS. 1 and 2) is simply a coaxial continuation of the circular portions 20' of the end surface portions 20 earlier described.
- Another portion of the central surface portion 24 is a narrow flat portion 26 (to the right in FIGS. 1 and 2) best seen in FIG. 1 as a narrow continuation of the coplanar end flats 21 and extending therebetween.
- the remainder of the surface of the central portion 24 comprises two portions of at least one cylindrical surface, shown as upper and lower recessed curved portions 38 and 39, respectively, which are formed on a radius approximately equal to or slightly smaller than the radius of the circularly curved surface portions 20' of the end portions 20 and on an axis 30 parallel to axis 16 and spaced to the left thereof as seen in FIG. 2.
- Recessed surfaces 38 and 39 have circumferentially spaced edges joined together by the axially coextensive flat surface 26. The forming of the surfaces 38 and 39 develops inwardly facing shoulders 27 between the end portion surfaces 20' and the respective surface 38 and 39.
- the flat surfaces 21 are the exterior surfaces of a sector of the pintle 16 having a dihedral angle of approximately for example, while the recessed surfaces 38 and 39 together with the fiat surface 26 form the exterior surface of a sector of the pintle 16 having a dihedral angle of approximately which sector includes the sector of the flats 21.
- the utility of this four-part surface will be made plain in conjunction with the following description.
- Each of the connector 14 is provided with a circular bore 31 of substantially the same diameter as the circular portion 20' of the pintle end portion 20 but enough larger to provide clearance for a sliding fit of the end portion 20 through the connector bore 31.
- the pintle 16 is inserted through one of the openings 18, through the connector bore 31 and the other opening 18 by simple straight sliding action while simultaneously maintaining non-rotative contact between the fiat side 19 of a bit link opening 18 and the flat 26 due to full spacing of flat 26 from the diametrically opposite curved surface 24', to assemble a connector link 14 with a bit link 12.
- the utility of the central portion flat 26 resides in the fact that the flat 26- is at the same distance from the back surface 24 of the central portion 24 as are the flat surfaces 21 from the back side of the end surface portions 20" so that even though the central portion surfaces 38 and 39 are recesed below the surfaces 20' of the end portion 20 there are still two continuous supporting areas, namely the flats 21 with the central portion flat 26 and the end surface portions 20- with the backside 24 of the central portion 24 suitably spaced to be slidable within the cheek openings 18 and keep the pintle aligned as it passes through one of the cheek openings 18 and across the space between the cheeks to enter the second cheek opening 18. With the central portion flat 26' sliding along the flat 19 of the cheek opening 18 there is no position at which the pintle 16 is loose in the opening 18 or can become directionally or rotatively misaligned as normally happens with a recessed pin of the prior art.
- FIG. shows the application of the principles of this invention in a second embodiment comprising the continuous flat 26 in combination with the two axis recessed portions 28 and 29 more completely described and illustrated in copending application Ser. No. 812,758 filed Apr. 2, 1969 (McDowell) with the axes 28' and 29 respectively for the surfaces 28 and 29 as described therein.
- a pintle comprising a body member having: axially spaced end portions and a central portion intermediate said end portions; said central portion having an exterior surface extending axially thereof along one side thereof; said exterior surface having recessed surface portions formed as two portions of at least one cylindrical surface having at least one axis spaced from and parallel to the central axis of the pintle; said two portions having spaced edges joined by a flat surface portion extending axially of the pintle; and each of said end portions having at least a flat surface joined to and coplanar with said flat surface portion.
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81276069A | 1969-04-02 | 1969-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3605514A true US3605514A (en) | 1971-09-20 |
Family
ID=25210546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US812760A Expired - Lifetime US3605514A (en) | 1969-04-02 | 1969-04-02 | Cutter chain and method of assembly |
Country Status (1)
Country | Link |
---|---|
US (1) | US3605514A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2843562A1 (en) * | 1977-10-05 | 1979-04-12 | Honda Motor Co Ltd | CHAIN FOR POWER TRANSMISSION |
DE2906703A1 (en) * | 1978-02-21 | 1979-08-23 | Fmc Corp | CHAIN WITH A LINK |
US4493680A (en) * | 1982-12-02 | 1985-01-15 | Florkey's Conveyor Service, Inc. | Wear compensating link pin |
US4642079A (en) * | 1981-03-10 | 1987-02-10 | Volvo Car B.V. | Transmission chain |
US4813225A (en) * | 1984-02-13 | 1989-03-21 | Sulzer Brothers Limited | Chain for use in device for preventing rupturing of a pipeline |
US5192253A (en) * | 1991-10-17 | 1993-03-09 | Borg-Warner Automotive Transmission & Engine Components Corporation | Single pin rocker joint chain |
WO1993008418A1 (en) * | 1991-10-17 | 1993-04-29 | Borg-Warner Automotive Transmission & Engine Components Corporation | Single pin rocker joint cvt chain |
US5423724A (en) * | 1991-10-17 | 1995-06-13 | Borg-Warner Automotive, Inc. | Interlaced single pin rocker joint chain |
US5700217A (en) * | 1996-05-16 | 1997-12-23 | Borg-Warner Automotive, K.K. | Power transmission chain with formed bushing and associated aperture |
DE102008008807B3 (en) * | 2008-02-12 | 2009-07-09 | Thiele Gmbh & Co. Kg | Conveyor chain for use in bucket conveyor for transporting all types of bulk goods, has bushes comprising end sections whose outer contour's longitudinal axis extends in longitudinal direction of inner plates |
US20140171246A1 (en) * | 2012-12-13 | 2014-06-19 | Iwis Motorsysteme Gmbh & Co. Kg | Low-friction articulated bushing chain |
-
1969
- 1969-04-02 US US812760A patent/US3605514A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2843562A1 (en) * | 1977-10-05 | 1979-04-12 | Honda Motor Co Ltd | CHAIN FOR POWER TRANSMISSION |
DE2906703A1 (en) * | 1978-02-21 | 1979-08-23 | Fmc Corp | CHAIN WITH A LINK |
US4642079A (en) * | 1981-03-10 | 1987-02-10 | Volvo Car B.V. | Transmission chain |
US4493680A (en) * | 1982-12-02 | 1985-01-15 | Florkey's Conveyor Service, Inc. | Wear compensating link pin |
US4813225A (en) * | 1984-02-13 | 1989-03-21 | Sulzer Brothers Limited | Chain for use in device for preventing rupturing of a pipeline |
US5192253A (en) * | 1991-10-17 | 1993-03-09 | Borg-Warner Automotive Transmission & Engine Components Corporation | Single pin rocker joint chain |
WO1993008418A1 (en) * | 1991-10-17 | 1993-04-29 | Borg-Warner Automotive Transmission & Engine Components Corporation | Single pin rocker joint cvt chain |
US5334111A (en) * | 1991-10-17 | 1994-08-02 | Borg-Warner Automotive, Inc. | Single pin rocker joint CVT chain |
US5423724A (en) * | 1991-10-17 | 1995-06-13 | Borg-Warner Automotive, Inc. | Interlaced single pin rocker joint chain |
US5700217A (en) * | 1996-05-16 | 1997-12-23 | Borg-Warner Automotive, K.K. | Power transmission chain with formed bushing and associated aperture |
DE102008008807B3 (en) * | 2008-02-12 | 2009-07-09 | Thiele Gmbh & Co. Kg | Conveyor chain for use in bucket conveyor for transporting all types of bulk goods, has bushes comprising end sections whose outer contour's longitudinal axis extends in longitudinal direction of inner plates |
US20140171246A1 (en) * | 2012-12-13 | 2014-06-19 | Iwis Motorsysteme Gmbh & Co. Kg | Low-friction articulated bushing chain |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: JOY TECHNOLOGIES INC., A CORP. OF DE.,PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004880/0430 Effective date: 19870529 Owner name: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004880/0430 Effective date: 19870529 Owner name: JOY MANUFACTURING COMPANY, 535 SMITHFIELD STREET, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MITCHELL, RALPH, W.,;REEL/FRAME:004718/0972 Effective date: 19690303 |
|
AS | Assignment |
Owner name: JOY TECHNOLOGIES INC., PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004747/0261 Effective date: 19870626 Owner name: CITIBANK, N.A.,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.;REEL/FRAME:004846/0025 Effective date: 19870626 Owner name: CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.;REEL/FRAME:004846/0025 Effective date: 19870626 Owner name: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004747/0261 Effective date: 19870626 |
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AS | Assignment |
Owner name: JOY MANUFACTURING COMPANY,STATELESS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY TECHNOLOGIES INCL., (A DE CORP.);REEL/FRAME:004827/0367 Effective date: 19870626 Owner name: JOY MANUFACTURING COMPANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE DATE;ASSIGNOR:JOY TECHNOLOGIES INCL., (A DE CORP.);REEL/FRAME:004827/0367 Effective date: 19870626 |
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AS | Assignment |
Owner name: CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NE Free format text: SECURITY INTEREST;ASSIGNOR:JOY TECHNOLOGIES INC.,;REEL/FRAME:004936/0730 Effective date: 19870626 |
|
AS | Assignment |
Owner name: JOY TECHNOLOGIES INC., A CORP OF DE, PENNSYLVANIA Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:MC CARTNEY, DEREK L.;ARCHIBALD, JOHN H.;REEL/FRAME:005237/0152 Effective date: 19870626 |
|
AS | Assignment |
Owner name: JOY TECHNOLOGIES, INC., A CORP OF DE Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITIBANK N.A.;REEL/FRAME:005237/0187 Effective date: 19891011 |