Source: http://www.google.com/patents/US6213457?dq=system+for+measuring+web+traffic&ei=Lg8FT__TIIr-sQKzxaGRCg
Timestamp: 2014-09-23 13:41:40
Document Index: 263027104

Matched Legal Cases: ['art 39', 'art 41', 'arts 39', 'art 41', 'art 41', 'art 39']

Patent US6213457 - Apparatus and method for feeding sheet material magazines - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsAn apparatus for feeding flat products from a pile of flat products to a receiving location especially on a conveyor includes a plurality of delivering units for extracting a single flat product from the pile. Each of the delivering units has a first driven belt and is engageable with a pile. Furthermore,...http://www.google.com/patents/US6213457?utm_source=gb-gplus-sharePatent US6213457 - Apparatus and method for feeding sheet material magazinesAdvanced Patent SearchPublication numberUS6213457 B1Publication typeGrantApplication numberUS 09/222,148Publication dateApr 10, 2001Filing dateDec 29, 1998Priority dateDec 29, 1998Fee statusLapsedAlso published asDE19959098A1, EP1016603A2, EP1016603A3Publication number09222148, 222148, US 6213457 B1, US 6213457B1, US-B1-6213457, US6213457 B1, US6213457B1InventorsJames Richard SchloughOriginal AssigneeHeidelberger DruckmaschinenExport CitationBiBTeX, EndNote, RefManPatent Citations (9), Referenced by (12), Classifications (19), Legal Events (9) External Links: USPTO, USPTO Assignment, EspacenetApparatus and method for feeding sheet material magazinesUS 6213457 B1Abstract An apparatus for feeding flat products from a pile of flat products to a receiving location especially on a conveyor includes a plurality of delivering units for extracting a single flat product from the pile. Each of the delivering units has a first driven belt and is engageable with a pile. Furthermore, the apparatus includes a diverting element for diverting the flat products in a predetermined direction. A method of operating the apparatus is also provided.
For the purpose of this disclosure, reference will hereinafter be made to �magazine� or �magazines� with the understanding that the term is to be considered generic to magazines, books, catalogues and the like. In magazine publishing, there is an increasing desire by advertisers to direct their advertising at particular subscriber groups within a total national subscription of a magazine. To meet this demand the magazine publisher has to provide different issues of magazines containing different combinations of advertising for different subscriber groups which accordingly requires that the magazines of one total national subscription are to be made up of different combinations of signatures.
SUMMARY OF THE INVENTION It is an object of the invention of the instant application to provide a new and improved apparatus for feeding sheet material such as signatures or sheets onto a conveyor such as a belt conveyor, especially for use in the production of magazines.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagrammatic and schematic side-elevational, partly perspective view of a floor arrangement of an apparatus according to the invention of the instant application;
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now more in detail to the drawings and particularly to FIG. 1, there is shown therein an apparatus according to the invention of the instant application which includes a main conveyor 10 having receiving locations 12 located thereon for receiving flat products 14 such as sheet material, especially sheets or signatures. A plurality of hoppers (not shown) may be arranged along the main conveyor 10 to feed individual signatures from each of the hoppers to the main conveyor in order to build up a book block which is to be bound and trimmed in order to form a magazine.
For producing different issues of magazines containing different combinations of advertising for different subscriber groups it is necessary to feed different types of sheet material e.g. �A�, �B�, �C� and �D� to the main conveyor. These different sheet materials comprise different printing or advertising and are determined for different issues of one magazine and may even differ in size. Each of the different sheet materials A, B, C and D is stored in remote sheet material magazine 16, 18, 20, 22 and is fed from the material magazine to a remote feeder conveyor 24 which transports the individual sheets to the main conveyor 10. The individual sheets A, B, C and D may be fed by the remote feeder conveyor 24 to the main conveyor 10 via a conventional feeding mechanism 26 which is known for example from U.S. Pat. No. 4,989,850 or U.S. Pat. No. 3,819,173. The material magazines 16, 18, 20, 22 holding a pile of individual signatures or sheets may be of any number but are preferably of up to four as shown in FIG. 1. The magazines are preferably bottomless and the required signature is drawn from the corresponding magazine by a plurality of delivering feeder units 28 which are arranged in a closed loop and move along a predetermined path 30 but independently from the remote feeder conveyor 24. The remote feeder conveyor 24 moves the individual sheets or signatures A, B, C or D to the main conveyor 10 directly or as shown in FIG. 1 via a reversing drum 32 which causes the signatures to turn. The individual signatures are transported on the remote feeder conveyor 24 at predetermined receiving locations 13 (FIG. 2, for example) and may be fed to one or more printing stations where printers, e.g. ink jet printers 34, 35 print individual data onto the signatures such as the name or the address of the subscriber of the magazine. This printing stations may be arranged at any location along the path of the remote feeder conveyor 24. Therefore, each individual signature may be ink printed while being transported in horizontal orientation via a properly arranged ink jet or, as shown in FIG. 1 by a printing station 34, on the transfer drum 32 while being bound on the drum. In addition to the embodiment wherein two or more printing stations are arranged upstream or above the transfer drum 32 it is possible to arrange a printing station 36 downstream from the drum 32, where the individual signature has been turned already. This makes it possible to provide even the backside of the signature 14 with individual or additional printed information.
Each of the remote sheet material magazines 16, 18, 20, 22 has two side walls 38, 40, as shown in FIG. 2, which hold the pile of sheet material 23 and the preferably bottomless magazine 16. A plurality of delivering units 28 are arranged beneath the magazine 16 and may be linked together so that they move along a predetermined continuous path 30 which partly extends beneath the stationary arranged bottomless sheet material magazines 16, 18, 20, 22. The remote feeder units 28 are preferably of the same construction and include a separating part 39 for separating a single sheet material 14 from the pile of sheet material 23 and a diverting part 41 for diverting the single sheet material onto a predetermined direction. Each of the remote feeder units 28 preferably comprises a driven belt 42 having an upper run 44 supporting the pile 23 of the sheet material magazine 16. The uppers runs 44 of the belts 42 move in the direction indicated by the arrow �Z� which is opposite to the direction of movement of the delivering units 28 relative to the sheet material magazine 16, which is indicated by the arrow �X�. The velocity of the upper runs 44 and the velocity of the movement of the delivering units 28 is preferably substantially the same so that a fixed point on the upper run 44 of the belt 42 is stationary relative to the remote sheet material magazine 16.
The remote feeder conveyor 24 may move in the same direction as the remote feeder units 28, indicated by the arrow �X�. As soon as a trailing edge 46 of one of the separating parts 39 passes the side wall 40, a sucker 47 can be activated in order to draw the lowermost signature from the bottom of the pile 23 downwardly. Whenever a single sheet material shall be drawn from the bottom of the pile 23 the sucker 47 will be activated. The feeding action of the sucker can be selectively controlled either by engagement of motion, e.g. a calm drive, or by activating and deactivating a vacuum, applied to the sucker 47. When activated, the sucker 47 draws a sheet material from the bottom of the pile of sheet materials 23 downwardly and, according to the movement of the belt 42, the sheet material 14 is drawn in the direction given by the arrow �W�. When the sheet material 14 enters the diverting part 41 of the remote delivering unit 28, its direction is diverted to a direction substantially parallel to the moving direction of the remote feeder conveyor 24.
In another embodiment of the invention of the instant application which is shown in FIGS. 3 to 5, the individual sheet material is fed from a pile of sheet materials 23 to a receiving location 13 on the remote feeder conveyor 24 with gripper drums 58, 60. As shown in FIG. 3 an individual sheet material is drawn from the bottom of a pile of sheet materials 23 as described above. The plurality of delivering units 28, the so-called carriages, which move in continuous path, include a diverting part 41 and a separating part 39. They move beneath piles of sheet material 23, 23 a in the direction given by the arrow �X�. A vacuum mechanism grabs the leading edge of a lowermost individual signature 14 when a carriage passes under and draws the signature 14 into the carriage. According to the relative movement of the carriages 28 and the upper run 44 of the belt 42 the signature 14 is peeled into the carriage and diverted by the diverting element 41 of the carriage 28. As the belts 42 and 56 are preferably driven at the same speed as the carriages move, the signature 14 is passed through the carriage and ejected at the bottom of the carriage at twice the linear velocity of the carriage and fed tangentially to a rotating gripper drum 58. The gripper drum 58 is rotating in the direction of the paper flow, the surface speed of the drum being preferably greater than the linear speed of the paper. To perform sufficient gripping and feeding of the individual signature 14 by the gripper drum 58, the gripper drum 58 has a surface speed which is 10% greater than that of the linear speed of the paper. Preferably, the signature 14 is gripped by the gripper drum 58 when the gripper, mounted on the gripper drum 58, has reached a position approximately 5� past its upper position which is indicated by the dot-dash or phantom line 62.
In FIG. 6, a more detailed side view of a feeding apparatus according to the invention is shown. The plurality of delivering unit 28, the so-called carriages, are arranged in a housing 17 and move in a continuous loop along a rail 70. As already described hereinabove, a gripper mounted on the gripper drum 58 grips the leading edge of a signature as soon as it comes out from the bottom of the carriages 28. The signature 14 is set directly into the gripper of the gripper drum 58. At this time, the control of movement of the signature 14 is transferred from the belts of the carriages to the gripper drum. The gripper drum carries the signature around while reversing the original direction of movement �X�, which corresponds to the direction of movement of the carriages into the direction of movement �Y� of the feeder conveyor 24. The gripper drums 58 which are preferably belt-driven may be formed with a groove for receiving a belt 72 therein, the groove being sized so that the outside diameter of the belt is flush with the surface of the drum. The belt 72 may be of any suitable kind of material, but preferably is a round polyurethane belting. The belt 72 leaves the drum tangentially at the end of the drum facing towards the feeder conveyor 24 and guides the feeder 24 substantially parallel, thereby forming an upper belt with respect to the feeder conveyor 24. After a signature 14 has been carried around by a gripper drum 58, it is released into the nip between the gripper drum and the feeder conveyor 24 which preferably is of a transport belt type. When the gripper drum 58 releases the signature 14, it is clamped between the upper belt 72 and the lower conveyor belt 24 and transported in the direction �Y� which is the direction of movement of the feeder conveyor 24. Once trapped within the nip of the upper belt 72 and the feeder conveyor 24 the signature may be transported to an ink jet module where it will be ink jetted and transported to a main conveyor. Although the feeding mechanism of the invention has been described in connection with the remote feeder conveyor it is also possible to use this principle of feeding of signatures from a pile of signatures to a feeder conveyor, especially a belt feeder conveyor in a main conveyor.
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