US3261450A - Devices for supporting conveyor bands - Google Patents

Devices for supporting conveyor bands Download PDF

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Publication number
US3261450A
US3261450A US319834A US31983463A US3261450A US 3261450 A US3261450 A US 3261450A US 319834 A US319834 A US 319834A US 31983463 A US31983463 A US 31983463A US 3261450 A US3261450 A US 3261450A
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band
supports
slide
support
supporting
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US319834A
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Mccomble Alan Keith
Heybourn Frank
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Molins Machine Co Ltd
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Molins Machine Co Ltd
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/35—Adaptations of conveying apparatus for transporting cigarettes from making machine to packaging machine

Definitions

  • This invention concerns improvements in devices for supporting conveyor bands, that is, bands or belts carrying a load which causes the band to deflect.
  • the invention is primarily intended for use with an endless band conveyor described and shown in A. K. McCombies United States application Serial No. 319,846, of even date.
  • an endless band conveyor whose operative length is extended, or shortened, according to the quantity of cigarettes included in a reservoir in which said band is located to support some of the cigarettes.
  • the operative length needs to be supported to take the weight of the cigarettes and, because this length changes, there are provided movable supports which are spring loaded to urge them beneath the edges of the operative length of the conveyor where support is necessary.
  • the band is supported within the reservoir on a roller and this roller is attached to a slide which moves to alter the operative length of the band and slides in slots in the sides of the reservoir.
  • This slide remote from said roller is shaped to engage the supports and push them aside as the operative length of the band extends, where- -after they spring inwards under spring pressure as the slide clears them and provide side supports for the band.
  • the other end of the slide is similarly shaped and so, as the operative length of the band is shortened, the supports are pushed outwards against the spring tension and snap inwards again after lthe slide has passed.
  • the present invention provides a better method of operating the supports, as they are positively moved inwards and outwards and the springs are eliminated.
  • a device for supporting a conveyor band in the manner outlined above, comprising a fixed rail at each side of the band and supports mounted on each rail and slidable thereon toward and away from the band, a slide carrying a roller around which the band turns lat the end of its operative length, and a guide rail at each side of the slide, said supports being shaped to embrace the guide rail which is bent at one end to constitute a cam adapted to move a support transversely of the xed rail as the slide moves.
  • the support may have a part shaped as a hook and adapted to slide over the xed rail on which it is held in place by friction, the grip of the hook-shaped part being suflicient to prevent accidental displacement of the support but offering little resistance to movement of the support by the guide rail.
  • the fixed rail may have two parallel grooves along it and the hook-shaped part of the support then has a protuberance adapted to snap into either groove ⁇ and hold the support in the desired position.
  • FIGURE l is a fragmentary side elevation of part of the apparatus described and shown in the United States application referred to above, showing the present invention applied thereto,
  • FIGURE 2 is a section of FIGURE 1 on the line 2 2,
  • FIGURE 3 is a plan of part of FIGURE 1, some parts being in section.
  • an endless band conveyor 144 turns round on a roller 145 which moves to and fro as described in the application referred to.
  • the roller spindle is supported in a slide 146, to which is xed a curved back pl-ate 147, and is pulled to the left in FIGURE l by a flexible cord 149 which may be pulled by a weight (not shown) as in the aforesaid application.
  • the band 144 is driven in the direction of the arrow A, FIGURE 1, by a pulley, as in the said application and if this pulley stops, because cigarettes are not to pass out of the reservoir, another pulley pays out more of the length of the band and the cord 149 pulls the back plate and slide to the left to increase the capacity of the reservoir.
  • the sides of the band are supported as in the application referred to by movable supports but these are constructed differently in the presentv case and bear the reference 162, and it is to these supports and their operation that the present invention is directed.
  • each side of the magazine is a fixed rail of rightangled section and it has two grooves 171 lengthwise of the horizontal web.
  • the supports 162 each have a hookshaped part 172 which embraces the horizontal web and can slide on the said web from an inner, or band supporting, position to an outer position, clear of the edges of the band, so that the slide 146 can pass them as the slide moves to and fro, the supports being moved for this purpose as described later.
  • the inner side of the free end of the hook has a small protuberance 173 which catches in the grooves in the web and locates the support in either position after it has been moved.
  • the supports are made of an elastic material, such as moulded plastic, so the free end of the hook can spring slightly to permit the protuberance to snap into land out of a groove.
  • the hook-shaped part of the sup-port merges into an upstanding web 172 at right angles to the plane of the inner faces of the hook and this web has two parallel extensions 17S at right angles thereto, the upper surface of the upper extension constituting the band supporting surface.
  • the lower surface of the lower extension 175 also engages the lower run of the band and supports it against upward movement but this is for a purpose not connected with the present invention.
  • short extensions 176 extend at right angles thereto and directed towards one another so that the upstanding web 174 and the several extensions define a loop of substantially rectangular shape with part of oneside open. This open part is the distance between the opposed edges of the short extensions and the distance between them is equal to the thickness of the slide.
  • the supports are moved in and out by cam rails 178, integral with the slide 146, and having their ends 179 which are near to the roller 145, bent inwards towards one another to provide cams.
  • the inner faces of the web 174 and the short extensions 176 are shaped to give a horizontal cross-section of double Wedge shape with an -apex at the mid-length of the web or extension.
  • the shape can be seen best in FIGURE 3 where the respective apices on the web 174 and an extension 176 are marked 177.
  • the supports 162 also provide a guide for the slide to move in, as the cam rails are part of t-he slide and the rectangular loop fits over a cam rail with .the shor-t extensions engaging the inner sides of the cam rail land their ends engaging the top and bottom surfaces of the slide.
  • the supports can grip the horizon-tal web of the fixed rail merely by friction between the hook-shaped part of a support and the rail but the grooved rail and the protuberance on the support gives a more reliable performance.
  • the back plate has a side wall 1-80 which is screwed to the back plate and can abe adjusted across the width thereof, to cater for cigarettes of different lengths.
  • 4In apparatus comprising a conveyor band for cigarettes and whose operative length is increased or decreased according to the quantity of cigarettes contained in a reservoir, in which said band is located to support said quantity, and having a slide carrying a roller around which the band turns to pr-ovide an upper cigarette supporting run and a lower return run, the slide being movable lto and fro to alter the operative length .of the band, means for supporting the supponting run of the band, against the Weight of the cigarettes, consisting of slidable supports and a xed rail on each side of the band, on which the supports can slide toward and away from the conveyor, and means for moving the supports inwards into a position where they move beneath the edges of the band to support nl. it, and outwards from said position and clear of the band, as the slide moves to and fro to alter the operative length of the band.
  • Band supporting means as claimed in claim 2 comprising a protuberance on each hook-shaped part and means for retaining the supports in position, after movement, consisting of grooves in the xed rails into which a -protuberance can enter.
  • Band supporting means a claimed inclaim 4, in which the loops of the supports each have part of one side open, and the ends of a loop dening said open part engage the top and bottom surfaces of the slide and provide a guide for the slide to move in.

Description

|July19, 1966 A. K. MCCQMBIE EAL 3,261,450 g DEVICES FOR SUPPORTING CONVEYOR BANDS Filed Oct. 29, 1963 United States Patent O 3,261 450 DEVICES FOR SUPPORTING CONVEYOR BANDS Alan Keith McComhie and Frank Heybourn, London,
England, assignors to The Molins Organisation Limited Filed Oct. 29, 1963, Ser. No. 319,834
Claims priority, application Great Britain, May 23, 1963,
This invention concerns improvements in devices for supporting conveyor bands, that is, bands or belts carrying a load which causes the band to deflect. The invention is primarily intended for use with an endless band conveyor described and shown in A. K. McCombies United States application Serial No. 319,846, of even date.
In said application there is an endless band conveyor whose operative length is extended, or shortened, according to the quantity of cigarettes included in a reservoir in which said band is located to support some of the cigarettes. The operative length needs to be supported to take the weight of the cigarettes and, because this length changes, there are provided movable supports which are spring loaded to urge them beneath the edges of the operative length of the conveyor where support is necessary. The band is supported within the reservoir on a roller and this roller is attached to a slide which moves to alter the operative length of the band and slides in slots in the sides of the reservoir. The end of this slide remote from said roller is shaped to engage the supports and push them aside as the operative length of the band extends, where- -after they spring inwards under spring pressure as the slide clears them and provide side supports for the band. The other end of the slide is similarly shaped and so, as the operative length of the band is shortened, the supports are pushed outwards against the spring tension and snap inwards again after lthe slide has passed. The present invention provides a better method of operating the supports, as they are positively moved inwards and outwards and the springs are eliminated.
According to the invention there is provided a device for supporting a conveyor band, in the manner outlined above, comprising a fixed rail at each side of the band and supports mounted on each rail and slidable thereon toward and away from the band, a slide carrying a roller around which the band turns lat the end of its operative length, and a guide rail at each side of the slide, said supports being shaped to embrace the guide rail which is bent at one end to constitute a cam adapted to move a support transversely of the xed rail as the slide moves.
The support may have a part shaped as a hook and adapted to slide over the xed rail on which it is held in place by friction, the grip of the hook-shaped part being suflicient to prevent accidental displacement of the support but offering little resistance to movement of the support by the guide rail. Alternatively the fixed rail may have two parallel grooves along it and the hook-shaped part of the support then has a protuberance adapted to snap into either groove `and hold the support in the desired position.
The invention will be further described with reference to the accompanying drawings in which:
FIGURE l is a fragmentary side elevation of part of the apparatus described and shown in the United States application referred to above, showing the present invention applied thereto,
FIGURE 2 is a section of FIGURE 1 on the line 2 2,
FIGURE 3 is a plan of part of FIGURE 1, some parts being in section.
The drawings show the invention as applied to the apparatus described and shown in the United States applica- 3,261,450 Patented July 19, 1966 tion above-mentioned to which reference should be made for further details. Parts identical with parts in the aforesaid specification, or equivalent in function to such parts have their references increased by 100.
Referring to the drawings, an endless band conveyor 144 turns round on a roller 145 which moves to and fro as described in the application referred to. The roller spindle is supported in a slide 146, to which is xed a curved back pl-ate 147, and is pulled to the left in FIGURE l by a flexible cord 149 which may be pulled by a weight (not shown) as in the aforesaid application.
The band 144 is driven in the direction of the arrow A, FIGURE 1, by a pulley, as in the said application and if this pulley stops, because cigarettes are not to pass out of the reservoir, another pulley pays out more of the length of the band and the cord 149 pulls the back plate and slide to the left to increase the capacity of the reservoir.
The sides of the band are supported as in the application referred to by movable supports but these are constructed differently in the presentv case and bear the reference 162, and it is to these supports and their operation that the present invention is directed.
At each side of the magazine is a fixed rail of rightangled section and it has two grooves 171 lengthwise of the horizontal web. The supports 162 each have a hookshaped part 172 which embraces the horizontal web and can slide on the said web from an inner, or band supporting, position to an outer position, clear of the edges of the band, so that the slide 146 can pass them as the slide moves to and fro, the supports being moved for this purpose as described later. The inner side of the free end of the hook has a small protuberance 173 which catches in the grooves in the web and locates the support in either position after it has been moved. The supports are made of an elastic material, such as moulded plastic, so the free end of the hook can spring slightly to permit the protuberance to snap into land out of a groove.
The hook-shaped part of the sup-port merges into an upstanding web 172 at right angles to the plane of the inner faces of the hook and this web has two parallel extensions 17S at right angles thereto, the upper surface of the upper extension constituting the band supporting surface. As shown, the lower surface of the lower extension 175 also engages the lower run of the band and supports it against upward movement but this is for a purpose not connected with the present invention. From the ends of these extensions 175 short extensions 176 extend at right angles thereto and directed towards one another so that the upstanding web 174 and the several extensions define a loop of substantially rectangular shape with part of oneside open. This open part is the distance between the opposed edges of the short extensions and the distance between them is equal to the thickness of the slide.
The supports are moved in and out by cam rails 178, integral with the slide 146, and having their ends 179 which are near to the roller 145, bent inwards towards one another to provide cams. At these rail ends 179 move entirely clear of supports at times, the inner faces of the web 174 and the short extensions 176 are shaped to give a horizontal cross-section of double Wedge shape with an -apex at the mid-length of the web or extension. The shape can be seen best in FIGURE 3 where the respective apices on the web 174 and an extension 176 are marked 177.
This provides an easy entry and exit for the cam rail ends 179 as the slide moves in either direction and the distance between the apices, that is the crests of the slopes of the double wedge shape is a fairly close lit on the cam rails.
The remainder of a cam rail, to its other end, is straig-ht because, once the supports have Ibeen moved to the outer position they are held by the protuberances 173 and the outer grooves 171 and the straight part of a rail can move freely through the supports. Similarly, as a rail end i179 moves a support to the inner, or band supporting position, and then moves clear of said support, the support is held in the inner position by the protuberance 173 and the inner -groove 171.
The supports 162 also provide a guide for the slide to move in, as the cam rails are part of t-he slide and the rectangular loop fits over a cam rail with .the shor-t extensions engaging the inner sides of the cam rail land their ends engaging the top and bottom surfaces of the slide.
In an alternative construction the supports can grip the horizon-tal web of the fixed rail merely by friction between the hook-shaped part of a support and the rail but the grooved rail and the protuberance on the support gives a more reliable performance.
The back plate has a side wall 1-80 which is screwed to the back plate and can abe adjusted across the width thereof, to cater for cigarettes of different lengths.
What We claim as our invention and desire to secure by Letters Patent is:
1. 4In apparatus comprising a conveyor band for cigarettes and whose operative length is increased or decreased according to the quantity of cigarettes contained in a reservoir, in which said band is located to support said quantity, and having a slide carrying a roller around which the band turns to pr-ovide an upper cigarette supporting run and a lower return run, the slide being movable lto and fro to alter the operative length .of the band, means for supporting the supponting run of the band, against the Weight of the cigarettes, consisting of slidable supports and a xed rail on each side of the band, on which the supports can slide toward and away from the conveyor, and means for moving the supports inwards into a position where they move beneath the edges of the band to support nl. it, and outwards from said position and clear of the band, as the slide moves to and fro to alter the operative length of the band.
2. Band supporting means as claimed in claim 1, in which the supports have hook-shaped parts engaging the fixed rails and slidable thereon, and means for retaining the supports in the position into which they are moved on the rails by the said means for moving the supports.
3. Band supporting means as claimed in claim 2, comprising a protuberance on each hook-shaped part and means for retaining the supports in position, after movement, consisting of grooves in the xed rails into which a -protuberance can enter.
4. Band supporting means as claimed in claim 1, in which the means for moving the supports consists of a cam rail at each side of the conveyor and movable with the slide, and the supports each comprise a loop surrounding the cam rail, the cam rails having their ends near to the roller bent to provide cams which engage inter-ior surfaces of the loops and push the supports inwards and outwards as the slide moves to and fro.
5. Band supporting means a claimed inclaim 4, in which the loops of the supports each have part of one side open, and the ends of a loop dening said open part engage the top and bottom surfaces of the slide and provide a guide for the slide to move in.
References Cited by the Examiner UNITED STATES PATENTS 4EVON C. BLUNK, Primary Examiner.
R. E. KRISHfER, Assistant Examiner.

Claims (1)

1. IN APPARATUS COMPRISING A CONVEYOR BAND FOR CIGARETTES AND WHOSE OPERATIVE LENGTH IS INCREASED OR DECREASED ACCORDING TO THE QUANTITY OF CIGARETTES CONTAINED IN A RESERVOIR, IN WHICH SAID BAND IS LOCATED TO SUPPORT SAID QUANTITY, AND HAVING A SLIDE CARRYING A ROLLER AROUND WHICH THE BAND TURNS TO PROVIDE AN UPPER CIGARETTE SUPPORTING RUN AND A LOWER RETURN RUN, THE SLIDE BEING MOVABLE TO AND FRO TO ALTER THE OPERATIVE LENGTH OF THE BAND, MEANS FOR SUPPORTING THE SUPPORTING RUN OF THE BAND, AGAINST THE WEIGHT OF THE CIGARETTES, CONSISTING OF SLIDABLE SUPPORTS AND A FIXED RAIL ON EACH SIDE OF THE BAND, ON WHICH THE SUPPORTS CAN SLIDE TOWARD AND AWAY FROM THE CONVEYOR, AND MEANS FOR MOVING THE SUPPORTS INWARDS INTO A POSITION WHERE THEY MOVE BENEATH THE EDGES OF THE BAND TO SUPPORT IT, AND OUTWARDS FROM SAID POSITION AND CLEAR OF THE BAND, AS THE SLIDE MOVES TO AND FRO TO ALTER THE OPERATIVE LENGTH OF THE BAND.
US319834A 1962-11-01 1963-10-29 Devices for supporting conveyor bands Expired - Lifetime US3261450A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB41395/62A GB995663A (en) 1962-11-01 1962-11-01 Apparatus for feeding cigarettes from cigarette making machines to packing machines
GB2064563 1963-05-23

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US3261450A true US3261450A (en) 1966-07-19

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US319834A Expired - Lifetime US3261450A (en) 1962-11-01 1963-10-29 Devices for supporting conveyor bands
US547702A Expired - Lifetime US3297138A (en) 1962-11-01 1966-04-11 Apparatus for feeding cigarettes from cigarette-making machines to packing machines
US854028A Expired - Lifetime US3605988A (en) 1962-11-01 1969-08-28 Apparatus for feeding cigarettes

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Application Number Title Priority Date Filing Date
US547702A Expired - Lifetime US3297138A (en) 1962-11-01 1966-04-11 Apparatus for feeding cigarettes from cigarette-making machines to packing machines
US854028A Expired - Lifetime US3605988A (en) 1962-11-01 1969-08-28 Apparatus for feeding cigarettes

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US (3) US3261450A (en)
BE (1) BE639376A (en)
CH (1) CH406042A (en)
DE (3) DE1781375A1 (en)
GB (1) GB995663A (en)

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US6247581B1 (en) * 1999-10-29 2001-06-19 Universal Instruments Corporation Adjustable length conveyor
US20110120835A1 (en) * 2008-05-16 2011-05-26 International Tobacco Machinery Poland Sp. Z O.O Store-transport assembly for elongated rod shaped elements, as well as method of controlling mass flow and filling and emptying of store-transport assembly for elongated rod shaped elements
US8469181B2 (en) 2009-08-14 2013-06-25 International Tobacco Machinery Poland Sp.Zo.O Store-transport device for elongated rod shaped elements

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US5413213A (en) * 1992-07-25 1995-05-09 Korber Ag Apparatus for transporting mass flows of articles
IT1264219B1 (en) * 1993-09-20 1996-09-23 Gd Spa PLANT FOR THE REALIZATION AND PACKAGING OF SMOKING ITEMS, IN PARTICULAR CIGARETTES.
IT1279938B1 (en) * 1995-06-07 1997-12-23 Gd Spa VARIABLE CAPACITY WAREHOUSE FOR PRODUCTS
US5996769A (en) * 1998-09-15 1999-12-07 Svedala Industries, Inc. Conveyor system
US7810629B2 (en) * 2004-02-02 2010-10-12 Krones Ag Device for dynamic storage of objects
DE202004016069U1 (en) 2004-10-16 2005-12-01 Krones Ag Device for buffering objects
DE202005013552U1 (en) 2005-08-27 2005-11-03 Krones Ag Dynamic storage for buffering and transporting empty bottle, has lower deflection pulleys rotating in essentially horizontal planes and connected with vertical loops by curved guides for conveyor chain
DE102006008123A1 (en) * 2006-02-20 2007-08-23 Krones Ag Dynamic conveyor holding zone, for items being carried, has two conveyor paths moving in opposite directions with a transfer unit to move them from one to the other and a control unit linked to sensors
DE102006012148A1 (en) * 2006-03-16 2007-09-20 Krones Ag funding
DE102006035109A1 (en) * 2006-07-29 2008-01-31 Krones Ag Conveyor device for use in bottle handling device, has conveyors separated from each other and connected with buffer over transferring points, where intermediate conveyor bypasses buffer
PL239518B1 (en) 2019-07-16 2021-12-06 Int Tobacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia Transport device for transporting rod-like articles

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
US6247581B1 (en) * 1999-10-29 2001-06-19 Universal Instruments Corporation Adjustable length conveyor
US20110120835A1 (en) * 2008-05-16 2011-05-26 International Tobacco Machinery Poland Sp. Z O.O Store-transport assembly for elongated rod shaped elements, as well as method of controlling mass flow and filling and emptying of store-transport assembly for elongated rod shaped elements
US8327996B2 (en) 2008-05-16 2012-12-11 Int'l Tobacco Machinery Poland SP.ZO.O Store-transport assembly for elongated rod shaped elements, as well as method of controlling mass flow and filling and emptying of store-transport assembly for elongated rod shaped elements
US8469181B2 (en) 2009-08-14 2013-06-25 International Tobacco Machinery Poland Sp.Zo.O Store-transport device for elongated rod shaped elements

Also Published As

Publication number Publication date
CH406042A (en) 1966-01-15
BE639376A (en)
DE6605289U (en) 1970-05-21
GB995663A (en) 1965-06-23
DE1781375A1 (en) 1970-05-14
US3297138A (en) 1967-01-10
DE1292069B (en) 1969-04-03
US3605988A (en) 1971-09-20

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