US3513780A - Conveyors - Google Patents

Conveyors Download PDF

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Publication number
US3513780A
US3513780A US747329A US3513780DA US3513780A US 3513780 A US3513780 A US 3513780A US 747329 A US747329 A US 747329A US 3513780D A US3513780D A US 3513780DA US 3513780 A US3513780 A US 3513780A
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US
United States
Prior art keywords
panel
panels
conveyor
successive
belt
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
US747329A
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English (en)
Inventor
Peter J Jenkins
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.)
Dunlop Co Ltd
Original Assignee
Dunlop Co Ltd
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 Dunlop Co Ltd filed Critical Dunlop Co Ltd
Application granted granted Critical
Publication of US3513780A publication Critical patent/US3513780A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/08—Carrying surfaces
    • B66B23/10—Carrying belts

Definitions

  • This invention relates to conveyors, and particularly 'but not exclusively to belt-type passenger conveyors.
  • a joint device for a conveyor comprising a train of load-supporting panels in which the trailing edge of each panel is near to the leading edge of the next successive panel and successive panels are pivotallysecured vto one anotherso as to be relatively angularly movable in a common plane, at least one of each pair of successive panels having a longitudinally ribbed surface inthe region of the junction of the panels, the joint device comprising toothed bridging means to extend between the confronting edges of successive panels, the teeth of the bridging means being locatable at spaced-apart positions across the width of theconveyor in the grooves between the ribs of the' said ribbed surface.
  • a conveyor element comprises a joint device as deiined in the last preceding paragraph together with a panel arranged to form part of atrain of load-supporting panels in which the trailing edge of each panel is near to the leading edge of the next successive panel yand successive panels are pivotally secured to one another so as to be relatively angularly movable in a common plane, wherein in the 'region of at least one end of thepanel there is formed a longitudinally ribbed surface to cooperate with the said toothed bridging means.
  • a conveyor comprises a train of load-supporting y panels in which the trailing edge of each panel is near to the leading edge of the next successive panel and successive panels are pivotally secured to one another so as to be relatively angularly movable in a com-mon plane, a joint device being provided to close 'the' gap between successive panels, the joint devicecomprising toothed bridging means and complementary interengaging formations, the complementary formations being locatable at spaced-apart positions across the width of the conveyor between the teeth of the toothed bridging means.
  • a system for conveying passengers in a closed circuit comprises an endless belt [formed from a train of loadsupporting panels which are pivotally linked together so as to maintain the trailing edge of each panel near to the leading edge of the next successive panel while permitting the successive panels to move angularly relative to one another in a common, horizontal plane.
  • the belt is supported at its edges by freely rotatable rollers disposed on iixed supports beneath the belt and is arranged to move along a track having portions which 'are curved in the horizontal plane so that the belt forms a closed circuit.
  • the belt is guided around the track by freely rotatable guide rollers disposed adjacent the edges of the belt with their yaxes vertical, and if a concave bend in the vertical plane is required, horizontal rollers are provided to engage the upper surface of the belt to hold the belt down to the required curvature.
  • the relatively angularly movable panels are pivotally secured to one another so that they can be angularly displaced through the appropriate angle to enable the belt to Ifollow the curved portion of the track.
  • the belt is drivable by means of a continuous drive cable engageable with drive formations secured to ⁇ the lower surfaces of the panels.
  • each panel 1 is approximately 4 feet in length and 3 feet 6 inches in width and is constructed from two spaced-apart superimposed layers 2, 3 of parallel, high modulus, steel cords embedded in a flexible rubber composition, the cords extending at right angles to the longitudinal axis of the panel and being closely and uniformly spaced along the length of the panel.
  • the two plies are interspaced with a layer 4 of high modulus rubber having embedded therein two plies of textile reinforcement, the vertical spacing between the centres of the steel cord plies being approximately of an inch.
  • each panel provides a panel which is ⁇ relatively exible in a vertical plane passing through the longitudinal axis of the panel, and yet is sufliciently rigid in a plane transverse to that vertical plane to enable the panel to support the weight of passengers carried on the panel without any tendency to form a trough extending along the length of the panel.
  • Suicient transverse rigidity is provided by this construction to enable the panels to be supported by the rollers (not shown) positioned adjacent the edges of the belt vihout any need for support in the central region of the
  • the upper and lower surfaces of each panel are provided with covering layers 5, 6 respectively of rubber.
  • the layer 5 is moulded into a pattern of longitudinally extending ribs 7 which are 1A of an inch in width and 1A of an inch in height, separated by grooves having a width of 1A of an inch.
  • Each panel is provided with a tensile member in the form of a single wire rope 9, 1A of an inch in diameter and passing centrally along the longitudinal axis of each panel between the two reinforcing plies 2, 3.
  • the wire rope is bonded to the panel, and projects at each end.
  • One end of the rope is provided with a coupling eye 10 and the other end is provided with a forked coupling member 11 so that successive panels can be linked together by a clevis pin (not shown) passing through the forked member of one panel and the coupling eye of the other panel.
  • each panel is provided with a drive formation in the form of a downwardly projecting longitudinally extending rubber rib 12 formed with a centrally disposed longitudinal groove 13 of tapering cross-sectional profile, the opening of the groove being wider than the base.
  • This groove is designed to sit over and grip drive means for the conveyor in the form of a wire drive cable 14 of appropriate diameter so that the weight of the panel and any load placed upon it will cause the sides of the groove to grip the wire cable so that it can drive the panel along.
  • Drive stations are set up at a number of points along the wire drive cable as required.
  • a joint device comprising toothed bridging means in the form of a flexible comb assembly is supported between each pair of successive panels to extend between the said confronting edges.
  • Each comb assembly is mounted on support means located between the confronting edges of successive panels.
  • the support means is in the form of two lengths 15 of metal of H-shaped cross section located one on each side of the wire rope 9 and extending across the width of the belt.
  • the lengths of metal are arranged so that they present a pair of opposed channels 16 into which the ends of the tongues 8 of the associated panels t slidably.
  • the depth of each channel considered in the longitudinal direction of the belt, is sufficient to enable the successive panels to be angularly moved about the clevis pin to accommodate the curvature required for the belt to negotiate a curve of a predetermined radius.
  • the upper surfaces of the H-section lengths of metal 15 form a support for the eXible comb assembly which comprises a pair of combs 17, one for each panel, which are each formed with a neckl portion which is clamped between a pair of securing plates in the form lof metal strips 18, 19 extending across the width of the belt and secured to the H-section metal lengths by bolts 20.
  • Each comb is provided on the side thereof remote from its respective neck portion with a set of longitudinally extending teeth 21 at spaced-apart positions across the width of the conveyor which engage one tooth with each longitudinal groove between sucessive ribs 7 in the upper surface of its associated panel in the region of the junction of the panels, the ribs 7 thus constituting complementary formations interengaging with the teeth 21.
  • the combs are each in the form of an assembly of comb segments which are arranged in end to end relationship across the width of the conveyor.
  • Each comb is assembled with small gaps between successive comb segments and this arrangement allows the segments to be adjusted in position in a transverse direction relative to the conveyor to bring the teeth 21 into alignment with the grooves between the ribs of the panel surfaces. Such adjustment is effected after freeing the segments by slackening the bolts 20.
  • the gap between the panels is of equal width at both lateral edges of the conveyor and the teeth of the combs lie 'in the grooves of the panels without lateral deection, providing a smooth upper surface in the region between the panels.
  • the belt travels around a ⁇ curve in a horizontal plane the gaps between successive panels at the outer edge of the conveyor relative to the centre of the curve increase in length, and the gaps at the inner edge decrease in length. In this condition the longitudinal grooves in one panel of the conveyor are at a slight angle to those of the next panel.
  • the lateral flexibility of the teeth of the combs permits the teeth to bend to accommodate this slight change of angle whilst the teeth slide in the grooves of the panels to enable the gap at the outer edge of the conveyor to open and the gap at the inner edge to close.
  • the lengths of the teeth of the combs are such that no part of the tongue of the associated panel is exposed at any time, and this eliminates any danger of articles being trapped between the respective leading and trailing edges of successive panels.
  • the drive cable 14 When passing around a curve it may be necessary for the drive cable 14 to be deflected away from the train of panels through a series of pulleys in order to enable its direction to be changed, and the panels themselves may then be guided around the curve by a static rail or other suitable means engaging the groove formed in the rubber rib 12 of each panel.
  • the tensile member corresponding to the tensile member 9 is continuous through a number of panels, thus avoiding the need for clevis joints between each pairof successive panels.
  • the leading and trailing edges of the panels are formed at an acute angle to the longitudinal direction of the panels in order to permit a greater angular displacement of the panels.
  • a joint device for a conveyor comprising a train of load-supporting panels in which the trailing edge of each panel is near to the leading edge of the next successive panel and successive panels are pivotally secured to one another so as to be relatively angularly movable in a common plane, at least one of each pair of successive panels having a longitudinally ribbed surface in the region of the junction of the panels, the joint device comprising toothed bridging means to extend between the confronting edges of successive panels, the teeth of the briding means being locatable at spaced apart positions across the width of the conveyor in the grooves between the ribs of the ribbed surface.
  • the combs are manufactured from flexible material such as polyvinyl chlorideor a polyurethane, and taper 2.
  • a joint device according to claim 2 wherein the toothed briding means is arranged to be mounted on support means locatable between the confronting edges of successive panels.
  • a joint device for a conveyor of which each panel is provided with a longitudinally projecting tongue at each end of the panel, wherein the support means has formed therein a pair of opposed channels into which the ends of the tongues formed at the trailing end of one panel and at the leading edge of the next following panel are slidably locatable.
  • a joint device for a conveyor of which each panel has a longitudinally ribbed surface in the region of each end of the panel and wherein the toothed bridging means comprises two combs arranged back to back, the teeth of one comb being locatable in the grooves between the ribs of one panel and the teeth of the other comb being locatable in the grooves between the ribs of the next following panel.
  • a joint device comprising support means on which the toothed bridging means is arranged to be mounted, the support means being locatable between the confronting edges of successive panels, wherein each comb is formed with a neck portion remote from its teeth, the neck portions of each pair of combs being clamped to the support member by means of a securing plate extending transversely across the conveyor.
  • toothed bridging means is formed as a series of segments which are arranged to be adjustable in position in a transverse direction relative to the conveyor.
  • a joint device according to claim 1 wherein the teeth of the toothed bridging means are of polyvinyl chloride.
  • a joint device according to claim 1 wherein the teeth of the toothed bridging means are of a polyurethane.
  • a conveyor element comprising a joint device according to claim 1 together with a panel arranged to form part of a train of load-supporting panels in which the trailing edge of each panel is near to the leading edge of the next successive panel and successive panels are pivotally secured to one another so as to be relatively angularly movable in a common plane, wherein in the region of at least one end of the panel there is for-med a longitudinally ribbed surface to cooperate with the said toothed bridging means.
  • a conveyor comprising a train of load-supporting panels in which the trailing edge of each panel is near to the leading edge of the next successive panel and successive panels are pivotally secured to one another so as to be relatively angularly movable in a common plane, a joint device being provided to close the gap between successive panels, the joint device comprising toothed bridging means and complementary interengaging formations, the complementary formations being locatable at spacedapart positions across the width of the conveyor between the teeth of the toothed bridging means.
  • a conveyor comprising an assembly of conveyor elements according to claim 10, the conveyor elements being linked end to end.
  • each panel comprises a iiexible plastic material having embedded therein two spaced-apart, superimposed layers of parallel high modulus cords, the high modulus cords extending at right angles to the length of the panel and being closely and uniformly spaced along the length of the panel.
  • each panel is provided with a single tensile member extending centrally along the longitudinal axis of the panel.
  • each tensile member has a coupling eye at one end and a complementar'y forked coupling member at the other end to enable the panels to be connected together in end to end relationship.

Landscapes

  • Escalators And Moving Walkways (AREA)
  • Chain Conveyers (AREA)
  • Powder Metallurgy (AREA)
US747329A 1967-08-09 1968-07-24 Conveyors Expired - Lifetime US3513780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36488/67A GB1204521A (en) 1967-08-09 1967-08-09 Improvements in conveyors

Publications (1)

Publication Number Publication Date
US3513780A true US3513780A (en) 1970-05-26

Family

ID=10388621

Family Applications (1)

Application Number Title Priority Date Filing Date
US747329A Expired - Lifetime US3513780A (en) 1967-08-09 1968-07-24 Conveyors

Country Status (7)

Country Link
US (1) US3513780A (enrdf_load_stackoverflow)
FR (1) FR1578360A (enrdf_load_stackoverflow)
GB (1) GB1204521A (enrdf_load_stackoverflow)
IE (1) IE32394B1 (enrdf_load_stackoverflow)
NL (1) NL6811063A (enrdf_load_stackoverflow)
NO (1) NO125269B (enrdf_load_stackoverflow)
SE (1) SE328522B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565276A (en) * 1982-04-06 1986-01-21 O&K Orenstein & Koppel Aktiengesellschaft Autowalk
US5697487A (en) * 1995-10-31 1997-12-16 Otis Elevator Company Pallet for a passenger conveyor
US6142286A (en) * 1997-06-20 2000-11-07 Inventio Ag Floor covering for conveying equipment for persons
US6640957B2 (en) * 2001-12-21 2003-11-04 Otis Elevator Company Racetrack style passenger conveyor
US6705460B2 (en) * 2002-04-23 2004-03-16 Laitram L.L.C. Modular conveyor belt
US20190241404A1 (en) * 2016-10-18 2019-08-08 Inventio Ag Floor cover for a passenger-conveying device
US10633188B2 (en) * 2016-11-08 2020-04-28 Innova Patent Gmbh Conveying device consisting of a plurality of conveyor-belt segments lined up adjacent to each other

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098188B1 (enrdf_load_stackoverflow) * 1970-07-06 1974-09-27 Dunlop Holdings Ltd
NL2023540B1 (en) * 2019-07-19 2021-02-08 Ampelmann Holding B V A telescopic gangway, a motion compensated gangway, a vessel, an offshore structure, and a method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US421186A (en) * 1890-02-11 munde n
US1475077A (en) * 1923-03-26 1923-11-20 Mangin Henri Joints extensible and retractable in all directions for movable platforms without interruption of continuity
US2181018A (en) * 1938-05-25 1939-11-21 Hughes Lester Expansion joint
US3126084A (en) * 1964-03-24 figure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US421186A (en) * 1890-02-11 munde n
US3126084A (en) * 1964-03-24 figure
US1475077A (en) * 1923-03-26 1923-11-20 Mangin Henri Joints extensible and retractable in all directions for movable platforms without interruption of continuity
US2181018A (en) * 1938-05-25 1939-11-21 Hughes Lester Expansion joint

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565276A (en) * 1982-04-06 1986-01-21 O&K Orenstein & Koppel Aktiengesellschaft Autowalk
US5697487A (en) * 1995-10-31 1997-12-16 Otis Elevator Company Pallet for a passenger conveyor
US6142286A (en) * 1997-06-20 2000-11-07 Inventio Ag Floor covering for conveying equipment for persons
US6640957B2 (en) * 2001-12-21 2003-11-04 Otis Elevator Company Racetrack style passenger conveyor
US6705460B2 (en) * 2002-04-23 2004-03-16 Laitram L.L.C. Modular conveyor belt
US20190241404A1 (en) * 2016-10-18 2019-08-08 Inventio Ag Floor cover for a passenger-conveying device
US10513420B2 (en) * 2016-10-18 2019-12-24 Inventio Ag Floor cover for a passenger-conveying device
US10633188B2 (en) * 2016-11-08 2020-04-28 Innova Patent Gmbh Conveying device consisting of a plurality of conveyor-belt segments lined up adjacent to each other

Also Published As

Publication number Publication date
FR1578360A (enrdf_load_stackoverflow) 1969-08-14
DE1781005A1 (de) 1970-09-10
IE32394B1 (en) 1973-07-25
NL6811063A (enrdf_load_stackoverflow) 1969-02-11
GB1204521A (en) 1970-09-09
NO125269B (enrdf_load_stackoverflow) 1972-08-14
SE328522B (enrdf_load_stackoverflow) 1970-09-14
IE32394L (en) 1969-02-09

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