US3844221A - Conveyor chain - Google Patents

Conveyor chain Download PDF

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Publication number
US3844221A
US3844221A US00303829A US30382972A US3844221A US 3844221 A US3844221 A US 3844221A US 00303829 A US00303829 A US 00303829A US 30382972 A US30382972 A US 30382972A US 3844221 A US3844221 A US 3844221A
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US
United States
Prior art keywords
chain
block links
block
links
bent
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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US00303829A
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English (en)
Inventor
H Fromme
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Individual
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Individual
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Publication date
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Publication of US3844221A publication Critical patent/US3844221A/en
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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
    • F16G13/12—Hauling- or hoisting-chains so called ornamental chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B10/00—Power and free systems
    • B61B10/04—Power and free systems with vehicles rolling trackless on the ground
    • B61B10/043—Fraction elements

Definitions

  • ABSTRACT [30] F i A li ti P i it D t convigyor chain is assemblesl frim lirziks c omptrising N 30, 1971 G .1 21 24 a lemme arrangement 5 Palm 0 0v ermany 59 5 hand side and right-hand side block links.
  • Each pair of [52] CL 104/172 C 59/85 7 4 /250 C block links is with its end portions on either side con- 51 1m. (:1.
  • the invention relates to chains of a conveyor system mounted beneath the supporting surface of the vehicles to be moved. More particularly the invention relates to chains which comprise in an alternate arrangement solid central blocks and pairs of block links. By means of transverse pins the blocks and the block links are pivotably interconnected.
  • the block links have already been designed as one piece of u-shaped cross section in order to achieve an almost flat continuous upper surface of the chain.
  • the block links are provided with a bent-over portion along their upper edges which portions are wide enough as to almost contact one another along a middle line of the chain. Further, to the same end flat plates have already been inserted between the upper edges of the block links.
  • Chains of this type are, for example, disclosed in the U.S. Pat. No. 3,389,662 issued June 25, 1968 to Charles E. Jacoby. These chains have, however, a number of disadvantages.
  • the prior art block links cannot be manufactured in one single operation. It is however, important that this can be done in order to keep the production costs as low as possible.
  • the block links on the left-hand side and on the right-hand side should be of identical shape so that they can be assem- -bled symmetrically in pairs.
  • an object of the invention to provide a conveyor chain comprising block links which in a simple manner prevent the tow pins from engaging the chain at undesired places between the dog sections. It is a further object to provide block links of this type which may be manufactured at comparatively low costs; and another object of the invention is to provide block links which can be packed to small packages for easy transportation.
  • block links having central portions which are curved in lateral direction. All block links are of similar shape and they are mounted in pairs in a symmetrical arrangement with the convex side of the curvatures facing one another.
  • the deepness of the curvature or bentin portion is such that the distance between the facing convex sides is smaller than the diameter of the tow pin.
  • block links are of similar shape they may readily be packed together with the convex side of a first block link fitting into the concave side of a second block link.
  • the block links may be provided with bent-over edges in parallel to the chain axis.
  • FIG. 1 is a plan view of a conveyor chain comprising the invented block links in a first embodiment
  • FIG. 2 is a plan view of a conveyor chain comprising the invented block links in a second embodiment
  • FIG. 3 is a sectional view of a pair of block links out along line III-III in FIG. 2, and
  • FIG. 4 is a sectional view of the junction area between a block link and the adjacent block taken along the line IVIV of FIG. 2.
  • FIG. 1 shows a first and a second block link 1 having a body portion with a constant cross section and which are arranged in opposite order on either side of the blocks 8.
  • the end portions 2 and 3 of the block links 1 are slightly bent in inward direction to a degree which corresponds to the height of the pin head 6 of the connection pin 5. Between these ends the ends of the respective blocks 8 are positioned.
  • the connection between the block links and the blocks is established in conventional manner by means of the pins 5 which are inserted and secured in appropriate holes of the links and the blocks (FIG. 4).
  • each block link is provided with a further bend 4 in inward direction, i.e. in the direction towards the opposite block link.
  • These bends 4 are deep enough so that the tow pin 7 (shown in FIG. 1 in dotted lines in a sectional view) cannot fall into the space between the blocks 8 but slides on the upper surface of the block links 1.
  • Block links 11 are provided with bent-over portions 12 along their upper and lower edges and extending in parallel to the longitudinal axis of the chain.
  • Block links of this type may be used for heavy duty chains. They may preferably be manufactured by die forging.
  • a conveyor chain for pushing vehicles to be moved by engaging tow pins having a given diameter on vehicles by means of dog sections on the chain said chain comprising in an alternate arrangement blocks and pairs of identically shaped but symmetrically arranged block links connected with their end portions to the ad jacent blocks by transverse pins, wherein the improvement comprises block links with each of said block links having a body with a constant cross section, said body having bent-in central portions having a convex side which is arranged on the chain with said convex side of the bend extending in the direction of the oppothe block links are provided with bent-over portions along their upper and lower edges. said bent-over portions extending in parallel to the longitudinal axis of the chain.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Chain Conveyers (AREA)
  • Escalators And Moving Walkways (AREA)
  • Road Paving Structures (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US00303829A 1971-11-30 1972-11-06 Conveyor chain Expired - Lifetime US3844221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2159245A DE2159245C3 (de) 1971-11-30 1971-11-30 Schleppkette für Unterflur-Schleppketten-Förderanlagen

Publications (1)

Publication Number Publication Date
US3844221A true US3844221A (en) 1974-10-29

Family

ID=5826533

Family Applications (1)

Application Number Title Priority Date Filing Date
US00303829A Expired - Lifetime US3844221A (en) 1971-11-30 1972-11-06 Conveyor chain

Country Status (14)

Country Link
US (1) US3844221A (de)
JP (1) JPS4863479A (de)
AT (1) AT333654B (de)
AU (1) AU462173B2 (de)
BE (1) BE791167A (de)
CH (1) CH553705A (de)
DE (1) DE2159245C3 (de)
DK (1) DK138109C (de)
ES (1) ES409118A1 (de)
FR (1) FR2162056B1 (de)
GB (1) GB1388455A (de)
IT (1) IT975496B (de)
NL (1) NL7214824A (de)
SE (1) SE390949B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094141A (en) * 1974-03-12 1978-06-13 August Thiele Terminal chain link with built-in indicator
US4182116A (en) * 1977-06-10 1980-01-08 Anton Clement Connecting element for link chain strands of plough or conveyor chains employed in underground mining
US4297840A (en) * 1979-10-01 1981-11-03 C. L. Frost & Son, Inc. Chain link and chain assembly including same
US4297839A (en) * 1979-10-01 1981-11-03 C. L. Frost & Son, Inc. Chain link and chain assembly including same
US5226855A (en) * 1991-05-17 1993-07-13 Elektriciteit Voor Goederenbehandeling Marine En Industrie, In Het Kort Egemin, Naamloze Vennootschap Tow chain
US6691862B1 (en) 1999-11-23 2004-02-17 Gram Equipment A/S Drained conveyor chain link
US20080110317A1 (en) * 2006-11-15 2008-05-15 Blount, Inc., A Delaware Corporation Saw chain link with offset footprint
US20140057750A1 (en) * 2012-08-22 2014-02-27 Tsubakimoto Chain Co. Chain
US20140141913A1 (en) * 2012-11-21 2014-05-22 Tsubakimoto Chain Co. Chain
CN112324861A (zh) * 2020-10-30 2021-02-05 王平 一种变节距大载荷链条

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54919Y2 (de) * 1975-09-12 1979-01-17
US4086855A (en) * 1976-04-05 1978-05-02 Si Handling Systems, Inc. Shallow conveyor system
JPS5484755U (de) * 1977-11-28 1979-06-15
FI62506C (fi) * 1980-12-22 1983-01-10 Loennstroem Oy Transportoerkedja

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860520A (en) * 1957-09-24 1958-11-18 United States Steel Corp Chain conveyor
US3389662A (en) * 1964-10-23 1968-06-25 Si Handling Systems Low profile conveyor
US3590744A (en) * 1968-10-10 1971-07-06 Fmc Corp Low profile chain for floor conveyor systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860520A (en) * 1957-09-24 1958-11-18 United States Steel Corp Chain conveyor
US3389662A (en) * 1964-10-23 1968-06-25 Si Handling Systems Low profile conveyor
US3590744A (en) * 1968-10-10 1971-07-06 Fmc Corp Low profile chain for floor conveyor systems

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094141A (en) * 1974-03-12 1978-06-13 August Thiele Terminal chain link with built-in indicator
US4182116A (en) * 1977-06-10 1980-01-08 Anton Clement Connecting element for link chain strands of plough or conveyor chains employed in underground mining
US4297840A (en) * 1979-10-01 1981-11-03 C. L. Frost & Son, Inc. Chain link and chain assembly including same
US4297839A (en) * 1979-10-01 1981-11-03 C. L. Frost & Son, Inc. Chain link and chain assembly including same
US5226855A (en) * 1991-05-17 1993-07-13 Elektriciteit Voor Goederenbehandeling Marine En Industrie, In Het Kort Egemin, Naamloze Vennootschap Tow chain
US6691862B1 (en) 1999-11-23 2004-02-17 Gram Equipment A/S Drained conveyor chain link
US20080110317A1 (en) * 2006-11-15 2008-05-15 Blount, Inc., A Delaware Corporation Saw chain link with offset footprint
US8136436B2 (en) * 2006-11-15 2012-03-20 Blount, Inc. Saw chain link with offset footprint
US20140057750A1 (en) * 2012-08-22 2014-02-27 Tsubakimoto Chain Co. Chain
US9046151B2 (en) * 2012-08-22 2015-06-02 Tsubakimoto Chain Co. Chain
US20140141913A1 (en) * 2012-11-21 2014-05-22 Tsubakimoto Chain Co. Chain
US9243684B2 (en) * 2012-11-21 2016-01-26 Tsubakimoto Chain Co. Chain
CN112324861A (zh) * 2020-10-30 2021-02-05 王平 一种变节距大载荷链条

Also Published As

Publication number Publication date
ES409118A1 (es) 1975-11-16
DE2159245B2 (de) 1973-11-29
NL7214824A (de) 1973-06-04
SE390949B (sv) 1977-01-31
DK138109C (da) 1978-12-27
DE2159245C3 (de) 1974-07-11
AT333654B (de) 1976-12-10
DK138109B (da) 1978-07-17
AU462173B2 (en) 1975-06-19
ATA1000272A (de) 1976-03-15
CH553705A (de) 1974-09-13
BE791167A (fr) 1973-03-01
AU4909172A (en) 1974-05-23
FR2162056B1 (de) 1977-01-14
DE2159245A1 (de) 1973-06-07
FR2162056A1 (de) 1973-07-13
GB1388455A (en) 1975-03-26
JPS4863479A (de) 1973-09-04
IT975496B (it) 1974-07-20

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