US3880086A - Power and free conveyor track section - Google Patents

Power and free conveyor track section Download PDF

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Publication number
US3880086A
US3880086A US345095A US34509573A US3880086A US 3880086 A US3880086 A US 3880086A US 345095 A US345095 A US 345095A US 34509573 A US34509573 A US 34509573A US 3880086 A US3880086 A US 3880086A
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US
United States
Prior art keywords
track
free
section
power
yoke
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
Application number
US345095A
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English (en)
Inventor
Azizul H Khondker
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.)
FKI Industries Inc
Original Assignee
American Chain and Cable Co 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 American Chain and Cable Co Inc filed Critical American Chain and Cable Co Inc
Priority to US345095A priority Critical patent/US3880086A/en
Priority to BR2327/74A priority patent/BR7402327D0/pt
Priority to JP3383174A priority patent/JPS5529889B2/ja
Application granted granted Critical
Publication of US3880086A publication Critical patent/US3880086A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B10/00—Power and free systems
    • B61B10/02—Power and free systems with suspended vehicles

Definitions

  • Each yoke has a T-shaped cross section including a base [56] References Cited portion welded to the tracks and a transversely ex- UNITED STATES PATENTS tending portion extending from the base portion. 1,509,474 9/1924 Guilt" 23S/
  • spaced tracks define power or conveyor tracks and free or carrier tracks along which the conveyor and carriers are moved. respectively. It has been common to provide longitudinally spaced yokes between the tracks for supporting one track with respect to the other.
  • a power and free conveyor track section which overcomes the difficulties of the prior art; which results in a construction wherein the span between hangers may be increased; which provides greater lateral stability; which is economical and has substantial strength without limiting head room.
  • the power and free conveyor track construction comprises spaced power and free track sections and yokes extending between the track sections.
  • Each yoke has a cross section including a base portion welded to the tracks and a transversely extending portion extending from the base portion.
  • FIG. 1 is a side elevational view of a power and free conveyor system embodying the invention.
  • FIG. 2 is a fragmentary sectional view on an enlarged scale taken along the line 2-2 in FIG. l.
  • FIG. 3 is a fragmentary exploded side elevational view on an enlarged scale of a portion of the system shown in FIG. l.
  • FIG. 4 is a fragmentary side elevational view on an enlarged scale of the portion shown in FIG. 3.
  • FIG. 5 is a fragmentary side elevational view of a modified form.
  • FIG. 6 is a sectional view taken along the line 6-6 in FIG. 5.
  • FIGA 7 is a view similar to FIG. 4 showing a modified form of the invention.
  • FIG. 8 is a view similar to FIG. 7 showing a further modified form of the invention.
  • the power and free conveyor track construction comprises a power track l0 comprising an l-beam along which wheel trolleys l l of a conveyor l2 are moved and a free or carrier track I3 comprising inwardly spaced channels 14 on which wheel carriers C are supported so that the pusher l5 on a conveyor 12 engages a pusher dog 16 on the carriers C in accordance with well-known constructions.
  • Carriers C comprise one or more trolleys for supporting a load bar L.
  • U-shaped yokes 17 are provided at longitudinally spaced points between the track sections l0, 13, and at certain points. the yokes 17 are supported by bolts on vertical support members 18 fixed on the superstructure of the building.
  • Each power track I0 comprises a top horizontal flange 19 and bottom horizontal flange 20 connected by a vertical web 21.
  • Each free track channel 14 comprises a base 22 and inwardly' extending horizontal flanges 23, 24.
  • Each yoke 17 has a T-cross section including a base portion 25 extending longitudinally of the tracks and a transverse portion 26 extending outwardly' and transversely ofthe base portion and the tracks.
  • the yokes 17 may be made in one piece or from several pieces welded together.
  • the base portion 25 may cornprise one metal piece and the transverse portion may comprise another metal piece welded to the base portion 25.
  • each yoke 17 is welded to the top flange 19 of the track l0 as at 27.
  • the base portion of each yoke 17 is also welded to the bases 22 of the channels 14 as at 28.
  • Adjacent track sections are connected to one another in a suitable manner. As shown in FIGS. 3 and 4, adjacent tracks 10 and adjacent tracks I3 are brought into abutment within a yoke 17 on one track section and plates 29. 30, 3l are welded to the horizontal flanges of the tracks (FIG. 4).
  • the tracks l2' ⁇ I3' extend beyond the yokes nearest the end of each track section and abut outside the yokes.
  • Plates 32, 33, 34 and 35 are welded to the horizontal flanges of the tracks and plates 35u are welded to the webs 14 of track 13' to form the joint.
  • the cross section of the yoke and the manner in which it is welded to the tracks strengthen the track section.
  • the con struction provides a resistance to rotation in both lon gitudinal and lateral directions thereby reducing the vertical deflection of the track and the consequent moments and stresses in the conveyor track structure.
  • the resultant track produces the advantages of a long span track.
  • the reinforcing members substantially strengthen the track section by stiffening the ends and there is a considerable reduction in the deflection, shear and flexural stresses in all the members.
  • the power and free track construction embodying the invention results in carrying proportionate flexural and shear loads, based on relative flexural and rigidity moduli, to its fullest stress capacity. Accordingly. the design is most economical in the use of steel in the superstructure hanger steel. floor supports, if used. and the conveyor proper. In addition to increasing the flexural and shear rigidities in the vertical and longitudinal directions, respectively, added strength is achieved in the lateral direction. This furnishes increased lateral 3 stability and eliminates the necessity' of closely spaced lateral bracing as heretofore required. Since there are no portions which project outwardly from the conveyor proper, head room is not adversely' affected In the form of the invention shown in FIG. 7. the tracks l0.
  • a yoke 40 made of two sections 4l. each of which has a base portion 42 welded to the tracks l ⁇ 14 and a transverse portion 43. Adjacent transverse portions are fastened together by bolts 44. Welds 45 also connect portions 43.
  • the tracks l0. I4 are supported by a yoke 50 having a U- shaped cross section including base portion 5l welded to the tracks l0. I4 and transverse portions S2.
  • l. ln a power and free conveyor track section. the combination comprising a power track along which a conveyor is adapted to be moved.
  • each said yoke having a cross section that includes a base portion extending longitudinally and a transverse portion extending transversely' outwardly' from the basc portion,
  • said base portion having free edges.
  • said power track comprising a horizontal portion engaged by said base portion of said yoke to which said base portion of said yoke structure is welded along said free edges.
  • said free track including a vertical portion to which the base portion is welded along its free edges.
  • a power and free conveyor track section comprising a power track comprising an I cross section along which a conveyor is adapted to be moved.
  • said track comprising vertically' spaced top and bottom flanges connected by a vertical web.
  • a free track comprising inwardly' facing channels for supporting carriers beneath the conveyor.
  • each said channel comprising a base and inwardly extending flanges ⁇ longitudinally spaced U-shaped yokes extending between said tracks ⁇ each said yoke having a T cross section comprising a base portion extending longitudinally' and engaging substantiallyl the entire width of said top flange of said power track and engaging substantially the entire width of said base of said free track.
  • said base portion having free edges.
  • said base portion being welded along said free edges to said top flange of said power track and said base of said free track.
  • each track section comprising a power track comprising an l cross section along which a conveyor is adapted to be moved.
  • said track comprising vertically' spaced top and bottom flanges connected by a vertical web ⁇ a free track comprising inwardly' facing channels for supporting carriers beneath the conveyor.
  • each said channel comprising a base and inwardly extending flanges.
  • each said yoke having a T cross section comprising a base portion extending longitudinally and engaging substantially the entire width of said top flange of said power track and engaging substantially the entire width of said base of said free track.
  • said base portion having free edges.
  • said base portion being welded along said free edges to said top flange of said power track and said base of said free track,

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Railway Tracks (AREA)
  • Framework For Endless Conveyors (AREA)
US345095A 1973-03-26 1973-03-26 Power and free conveyor track section Expired - Lifetime US3880086A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US345095A US3880086A (en) 1973-03-26 1973-03-26 Power and free conveyor track section
BR2327/74A BR7402327D0 (pt) 1973-03-26 1974-03-25 Combinacao de esteiras transportadoras
JP3383174A JPS5529889B2 (enrdf_load_html_response) 1973-03-26 1974-03-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345095A US3880086A (en) 1973-03-26 1973-03-26 Power and free conveyor track section

Publications (1)

Publication Number Publication Date
US3880086A true US3880086A (en) 1975-04-29

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US345095A Expired - Lifetime US3880086A (en) 1973-03-26 1973-03-26 Power and free conveyor track section

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US (1) US3880086A (enrdf_load_html_response)
JP (1) JPS5529889B2 (enrdf_load_html_response)
BR (1) BR7402327D0 (enrdf_load_html_response)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358242A (en) * 1979-12-11 1982-11-09 Industrial And Overseas Securities Limited Core extraction and insertion apparatus
US4635558A (en) * 1983-09-30 1987-01-13 Hoehn Robert A Long span conveyor track and hanger
US4752987A (en) * 1985-06-26 1988-06-28 Huppe Gmbh Support and guide system for movable door or wall elements
US4939999A (en) * 1988-08-30 1990-07-10 Mid-West Conveyor Co., Inc. Integrated conveyor system with constant speed drive chain
US5048426A (en) * 1990-03-20 1991-09-17 Mid-West Conveyor Co., Inc. Integrated conveyor system with transfer of trollies
EP0822292A1 (en) * 1996-07-31 1998-02-04 Daifuku Co., Ltd. Rail system for carrier equipement
US8683924B1 (en) * 2012-10-08 2014-04-01 Swanson Industries, Inc. Rail supported trailer way apparatuses, systems, and methods
CN106927212A (zh) * 2017-03-29 2017-07-07 天奇自动化工程股份有限公司 积放链轨道装置
CN107364792A (zh) * 2017-08-24 2017-11-21 安徽骏达起重机械有限公司 悬挂式环形起重机系统
US11820630B2 (en) * 2019-09-20 2023-11-21 Knight Industries & Associates, Inc. Electrical enclosure combined with lifting device support rails

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077187A (en) * 1977-02-14 1978-03-07 Paxton Jerre Hale Cold co-cycling bag closure imprinting and bag closing machine
JPS53115586U (enrdf_load_html_response) * 1977-02-22 1978-09-13
JPS5996942A (ja) * 1982-11-27 1984-06-04 ヴイリ・キユステルス・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング 袋閉じタグ用取出装置
JPS59122011A (ja) * 1982-12-27 1984-07-14 Showa Electric Wire & Cable Co Ltd ガラス遅延線
JPS59129219U (ja) * 1983-02-18 1984-08-30 松下電器産業株式会社 超音波遅延線
JPS6127801U (ja) * 1984-07-23 1986-02-19 千代田機械商事株式会社 結束具の切断器
JPS6284225U (enrdf_load_html_response) * 1985-11-12 1987-05-29
JPH01116477A (ja) * 1987-10-30 1989-05-09 Showa Electric Wire & Cable Co Ltd 多数回反射型超音波遅延線

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1509474A (en) * 1922-05-12 1924-09-23 Rail Joint Co Joint
US1876904A (en) * 1931-05-11 1932-09-13 Jeffrey Mfg Co Trolley conveyer
US1921109A (en) * 1929-09-12 1933-08-08 Jervis B Webb Conveyer system
US2875703A (en) * 1956-10-30 1959-03-03 Mechanical Handling Sys Inc Power and free conveyor system
US3217658A (en) * 1964-02-24 1965-11-16 Webb Co Jervis B Conveyor track section

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1509474A (en) * 1922-05-12 1924-09-23 Rail Joint Co Joint
US1921109A (en) * 1929-09-12 1933-08-08 Jervis B Webb Conveyer system
US1876904A (en) * 1931-05-11 1932-09-13 Jeffrey Mfg Co Trolley conveyer
US2875703A (en) * 1956-10-30 1959-03-03 Mechanical Handling Sys Inc Power and free conveyor system
US3217658A (en) * 1964-02-24 1965-11-16 Webb Co Jervis B Conveyor track section

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358242A (en) * 1979-12-11 1982-11-09 Industrial And Overseas Securities Limited Core extraction and insertion apparatus
US4635558A (en) * 1983-09-30 1987-01-13 Hoehn Robert A Long span conveyor track and hanger
US4752987A (en) * 1985-06-26 1988-06-28 Huppe Gmbh Support and guide system for movable door or wall elements
US4939999A (en) * 1988-08-30 1990-07-10 Mid-West Conveyor Co., Inc. Integrated conveyor system with constant speed drive chain
US5048426A (en) * 1990-03-20 1991-09-17 Mid-West Conveyor Co., Inc. Integrated conveyor system with transfer of trollies
EP0822292A1 (en) * 1996-07-31 1998-02-04 Daifuku Co., Ltd. Rail system for carrier equipement
US5957057A (en) * 1996-07-31 1999-09-28 Daifuku Co., Ltd. Rail system for carrier equipment
CN1108415C (zh) * 1996-07-31 2003-05-14 株式会社戴福库 载运设备的轨道系统
US8683924B1 (en) * 2012-10-08 2014-04-01 Swanson Industries, Inc. Rail supported trailer way apparatuses, systems, and methods
US20140150684A1 (en) * 2012-10-08 2014-06-05 Swanson Industries, Inc. Rail-supported trailer apparatuses, systems, and methods
US8869705B2 (en) * 2012-10-08 2014-10-28 Swanson Industries, Inc. Rail-supported trailer apparatuses, systems, and methods
CN106927212A (zh) * 2017-03-29 2017-07-07 天奇自动化工程股份有限公司 积放链轨道装置
CN107364792A (zh) * 2017-08-24 2017-11-21 安徽骏达起重机械有限公司 悬挂式环形起重机系统
US11820630B2 (en) * 2019-09-20 2023-11-21 Knight Industries & Associates, Inc. Electrical enclosure combined with lifting device support rails

Also Published As

Publication number Publication date
JPS5035871A (enrdf_load_html_response) 1975-04-04
BR7402327D0 (pt) 1974-10-29
JPS5529889B2 (enrdf_load_html_response) 1980-08-07

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