US3759035A - Self-supporting articulated chain - Google Patents

Self-supporting articulated chain Download PDF

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Publication number
US3759035A
US3759035A US00254529A US3759035DA US3759035A US 3759035 A US3759035 A US 3759035A US 00254529 A US00254529 A US 00254529A US 3759035D A US3759035D A US 3759035DA US 3759035 A US3759035 A US 3759035A
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US
United States
Prior art keywords
links
cover member
chain according
chain
edges
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
US00254529A
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English (en)
Inventor
H Schmidberger
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.)
Gebrueder Hennig GmbH
Original Assignee
Gebrueder Hennig GmbH
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 Gebrueder Hennig GmbH filed Critical Gebrueder Hennig GmbH
Application granted granted Critical
Publication of US3759035A publication Critical patent/US3759035A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • each link is l displaced laterally by an amount corresponding to its [56] References Cited wall thickness and the longitudinal edges of each link UNITED STATES PATENTS are bent to form edges of double wall thickness. 3,220,362 2/1962 Waninger 59/78.l 3,053,358 9/1962 Gross 248/49 8 Claims, 5 Drawing Figures H l .1 w l l i I J l l *1, 1
  • This invention relates to a self-supporting articulated chain composed of identical links pivotally connected together, and which on one side of their longitudinal center plane running through the pivot axes have two abutment edges lying parallel to each other and determining the extended position of the chain, and on the other side of the longitudinal center plane have two abutment edges extending obliquely to each other and determining the maximum angled position of the chain.
  • An articulated chain also is known whose individual chain links are each formed of two strap-like plates which in the vicinity of one end are cranked or displaced so far outwards to form a pivot bearing position that the following link can engage between the cranked strap portions.
  • the extended position and the maximum angled position of the chain links are determined by bolts which abut the edges of gate-like recesses.
  • a disadvantage of this construction is the relatively high manufacturing cost. The smallness of the abutment surfaces also produces high surface stresses and hence heavy wear.
  • the object of the present invention is to avoid the defects of known constructions in producing a selfsupporting articulated chain of high rigidity, wherein no open gaps which affect operating reliability are present in the area between adjacent links, which is also marked by a particularly simple construction and ready adaptation of differing radii of curvature, and wherein the stresses occurring in operation are so distributed that little wear is caused.
  • this object is achieved in that one end portion, forming a joint position, of each chain link is cranked or displaced transversely by the amount of the wall thickness, and in that each pair of successive joint positions, including the gap between adjacent chain links, are covered by at least one common covering element lying against one broad side of the chain links.
  • the displacement of the one joint position by the amount of the wall thickness also ensures that the one broad side of successive chain links form a single plane, so that the covering element provided at this broad side in accordance with the invention can lie closely against the gap between successive chain links.
  • the articulated chain provided by the invention is therefore marked by high security against accidents.
  • FIGS. 1 and 2 are a side view and an end view, respectively, of a chain link
  • FIGS. 3 and 4 are side views of the two covering elements.
  • FIG. 5 is a side view of the articulated chain in accordance with the invention, with the covering element of FIG. 4 removed on the side of the viewer to aid understanding.
  • the self-supporting articulated chain in accordance with the invention consists of identical links 1, 1', l" pivotally connected together, each link having a body through which passes a longitudinal center plane 4 running through the pivot axes 2, 3.
  • the body On one side of the plane 4 the body terminates in two abutment edges 5, 6 lying parallel to each other, and on the other side of the longitudinal center plane 4 the body terminates in two abutment edges 7, 8 extending obliquely to each other along lines which diverge in a direction toward the plane 4.
  • the parallel abutment edges 5, 6 determine extended position of the chain and the obliquely disposed abutment edges 7, 8 determine the maximum angled position of successive chain links.
  • the end portion 9 of the chain link 1 which forms one joint portion is displaced laterally by the amount of the wall thickness of the link body.
  • the portion 10 of the adjacent chain link which forms the other joint portion lies in the depression caused by the displacement.
  • the pivot joint between successive chain links is formed by bolts 13.
  • a plate-like covering element 14 is affixed to alternate links by means of two successive joint bolts 13, each element lying against the flat broad side 15 of the associated link and extending beyond the ends thereof to provide an external cover for two successive joint portions,- including the gap between the abutment surfaces of successive chain links.
  • the ends 14a, 14b of the plate-like covering element have the shape of a circular arc.
  • the opposite broad side of the alternate chain links can be provided with a further, spectacle shaped covering element 16 having apertures l7 and 18 at its opposite ends in the area of the two pivot bearing positions 9, 10.
  • the end areas 19, 20 of the covering elementv l6 lying on these longitudinal edges are preferably displaced transversely by the amount of the wall thickness.
  • the covering element 16 preferably engages and is suitably attached to the chain link I in the area of the central part 21 of the covering element.
  • the covering element 16 can have apertures 22, 23 and/or pocket-shaped elevations which facilitate the emergence of dirt and foreign materials from the gaps.
  • a self-supporting articulated chain system can be constructed from two articulated chains of the type described.
  • Such a system is particularly suitable for holding power cables taken from a fixed connector plug to a movable consumer unit.
  • a self-supporting articulated chain composed of a plurality of identical links; means pivotally connecting said links to one another, each of said links having a body member terminating at its opposite ends on one side of a longitudinal center plane running through the pivot axes in first abutment edges substantially parallel to each other and on the other side of said plane in second abutment edges extending obliquely to each other, one end of said body member being displaced to one side thereof by an amount corresponding to the thickness of said body member; and a cover member at one side of alternate ones of said links and extending beyond both ends of the latter to cover the pivotal connection between adjacent links.
  • each of said cover members is mounted alongside its associated link by said pivotal means.
  • a chain according to claim 1 including a further cover member at the opposite side of said alternate links and having a length corresponding substantially to the length of the first mentioned cover member, the opposite ends of said further cover member being apertured and accommodating the displaced ends of successive links.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Eyeglasses (AREA)
US00254529A 1971-05-26 1972-05-18 Self-supporting articulated chain Expired - Lifetime US3759035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7120545 1971-05-26

Publications (1)

Publication Number Publication Date
US3759035A true US3759035A (en) 1973-09-18

Family

ID=6621520

Family Applications (1)

Application Number Title Priority Date Filing Date
US00254529A Expired - Lifetime US3759035A (en) 1971-05-26 1972-05-18 Self-supporting articulated chain

Country Status (6)

Country Link
US (1) US3759035A (cs)
CH (1) CH564708A5 (cs)
DD (1) DD97044A5 (cs)
FR (1) FR2139168B1 (cs)
GB (1) GB1357064A (cs)
IT (1) IT957335B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311293A (en) * 1979-07-09 1982-01-19 Mcgraw-Edison Company Rolling conductor supports
US4951457A (en) * 1989-11-08 1990-08-28 Deal Douglas O Narrow pitch articulated chain and links therefor
US5108350A (en) * 1991-03-06 1992-04-28 A&A Manufacturing Co., Inc. Conduit carrier chain
WO2000014430A1 (en) * 1998-09-08 2000-03-16 Farmos George T Manually powered propulsion apparatus
WO2002064995A3 (en) * 2001-02-14 2003-07-24 Grey Pilgrim Inc Chain with selectively engaged links
US7073299B1 (en) * 2003-01-23 2006-07-11 The Steel Network, Inc. Circle wall track
US20090084910A1 (en) * 2007-09-28 2009-04-02 White Thomas C Adjustable cable tray joint
US9945083B2 (en) * 2015-06-18 2018-04-17 Hefei University Of Technology Unidirectional bend drive chain and lift mechanism and boom barrier including same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942672A1 (de) * 1979-10-23 1981-05-07 No-Sag Drahtfedern Gmbh, 4835 Rietberg Beschlag zur gelenkigen verbindung von moebelteilen
FR2573832B1 (fr) * 1984-11-23 1991-10-04 Serapid France Chaine de poussee

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053358A (en) * 1961-07-05 1962-09-11 Porter Co Inc H K Adjustable cable way connector
US3220362A (en) * 1964-06-05 1965-11-30 Anthony J Downes Collapsible seats, stands or the like
US3330105A (en) * 1965-06-23 1967-07-11 Maysteel Products Corp Protective device for flexible conductors
US3382668A (en) * 1964-09-23 1968-05-14 Kabelschlepp Gmbh Supporting chain for energy carriers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053358A (en) * 1961-07-05 1962-09-11 Porter Co Inc H K Adjustable cable way connector
US3220362A (en) * 1964-06-05 1965-11-30 Anthony J Downes Collapsible seats, stands or the like
US3382668A (en) * 1964-09-23 1968-05-14 Kabelschlepp Gmbh Supporting chain for energy carriers
US3330105A (en) * 1965-06-23 1967-07-11 Maysteel Products Corp Protective device for flexible conductors

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311293A (en) * 1979-07-09 1982-01-19 Mcgraw-Edison Company Rolling conductor supports
US4951457A (en) * 1989-11-08 1990-08-28 Deal Douglas O Narrow pitch articulated chain and links therefor
US5108350A (en) * 1991-03-06 1992-04-28 A&A Manufacturing Co., Inc. Conduit carrier chain
WO2000014430A1 (en) * 1998-09-08 2000-03-16 Farmos George T Manually powered propulsion apparatus
US6090002A (en) * 1998-09-08 2000-07-18 Farmos; George T. Manually powered propulsion apparatus
WO2002064995A3 (en) * 2001-02-14 2003-07-24 Grey Pilgrim Inc Chain with selectively engaged links
US20040185978A1 (en) * 2001-02-14 2004-09-23 Prince Jeffrey Theorin Chain with selectively engaged links
US6890278B2 (en) * 2001-02-14 2005-05-10 Jeffrey Theorin Prince Chain with selectivity engaged links
US7073299B1 (en) * 2003-01-23 2006-07-11 The Steel Network, Inc. Circle wall track
US20090084910A1 (en) * 2007-09-28 2009-04-02 White Thomas C Adjustable cable tray joint
US8167250B2 (en) * 2007-09-28 2012-05-01 James C. White Company, Inc. Adjustable cable tray joint
US9945083B2 (en) * 2015-06-18 2018-04-17 Hefei University Of Technology Unidirectional bend drive chain and lift mechanism and boom barrier including same

Also Published As

Publication number Publication date
CH564708A5 (cs) 1975-07-31
IT957335B (it) 1973-10-10
DD97044A5 (cs) 1973-04-12
FR2139168B1 (cs) 1973-07-13
FR2139168A1 (cs) 1973-01-05
GB1357064A (en) 1974-06-19

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