US3699887A - Disconnect arrangement for multi-unit printing press - Google Patents

Disconnect arrangement for multi-unit printing press Download PDF

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Publication number
US3699887A
US3699887A US130708A US3699887DA US3699887A US 3699887 A US3699887 A US 3699887A US 130708 A US130708 A US 130708A US 3699887D A US3699887D A US 3699887DA US 3699887 A US3699887 A US 3699887A
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United States
Prior art keywords
gear
cylinder
cylinders
transfer cylinder
gears
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Expired - Lifetime
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US130708A
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English (en)
Inventor
Donald L Southam
Thomas J Kacmarcik
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Harris Graphics Corp
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Harris Intertype Corp
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Assigned to HARRIS GRAPHICS CORPORATION reassignment HARRIS GRAPHICS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HARRIS CORPORATION
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers

Definitions

  • ABSTRACT A disconnect arrangement for a multi-unit sheet feed press in which the transfer cylinder gear is shifted axially out of mesh with thegears on the adjacent cylinders thereby interrupting the press drive train and permitting individual operation of the units. Means are provided to prevent disengagement of the cylinder in one rotational position and to maintain the cylinder in a predetermined position after it has been disconnected.
  • Interrupted portions on the transfer cylinder are angularly spaced such that, upon disconnect, these portions are facing the adjacent cylinders and provide a space into which the grippers on the adjacent cylinders can open as the units are individually rotated. Means are also provided to assure that, upon re-engagement, the gears are brought into mesh in exactly the same position they occupied when disconnected.
  • This invention relates to a multi-unit sheet fed rotary printing press and, more particularly, to a disconnect arrangement in which a transfer cylinder is disconnected from the cylinders on opposite sides thereof to permit individual rotation of the press units without interference between the interdigitated gripper fingers associated with the disconnected transfer cylinder and the adjacent cylinders.
  • various transfer mechanisms are provided to transfer the sheets from one printing unit to the next.
  • these transfer mechanisms comprise rotating transfer cylinders which are intergeared with the press units.
  • three transfer cylinders are used with each of the two outer cylinders being associated with the impression cylinders of two adjacent printing units and the third cylinder being located between the two outer cylinders and transferring the sheet from one outer transfer cylinder to the other.
  • Gripper fingers both on the impression cylinders and the transfer cylinders grip and release the sheets in a closely timed sequence whereby the sheet is carried around one cylinder and transferred to the next. These gripper fingers are normally positioned in a gap formed in the sur faces of the cylinder and are moved radially outward above the surface of the cylinder in a timed sequence controlled by a cam and follower mechanism.
  • the fingers on the two cylinders are interdigitated so that the gripper fingers on one cylinder move outwardly into the gap of the adjacent cylinder to release the edge of the sheet while the gripper fingers on the other cylinder, which have been opened, close on the edge of the sheet.
  • the movement of the fingers as they open and close must be timed with relation to the rotation of the cylinders so that the gaps on adjacent cylinders coincide to accommodate the radial movement of the grippers during the sheet transfer.
  • Another primary object of this invention is to provide a disconnect arrangement in which a transfer cylinder of a multi-unit press may be disconnected from the press drive gear train thereby to permit individual operation of the press units while maintaining the disconnected transfer cylinder in a predetermined angular position such that the grippers on adjacent rotating cylinders do not interfere with the disconnected cylinder.
  • this invention contemplates a disconnect arrangement for a multi-unit sheet fed printing press in which a sheet transfer cylinder is intergeared with a pair of other cylinders on opposite sides thereof with each of the cylinders having sets of interdigitated gripping fingers thereon for successively transferring sheets from one cylinder to the next.
  • the transfer cylinder has interrupted portions in its periphery and the adjacent pair of cylinders are angularly spaced about the axis of the transfer cylinder such that a pair of these interrupted portions may be sim ultaneously adjacent the cylinders on opposite sides thereof.
  • the disconnect arrangement includes means for disconnecting the transfer cylinder from the gear train with means for locking the disconnected transfer cylinder against rotation in a predetermined angular relationship relative to the adjacent cylinders whereby the interrupted portions on the transfer cylinder periphery face the adjacent cylinders so that, upon rotation of the adjacent cylinders, the grippers thereon open into the space provided by the interrupted portions.
  • the transfer cylinder is disconnected from the press drive train and the adjacent cylinders by shifting the entire transfer cylinder axially thereby shifting its associated gear out of meshing engagement with the gears of the adjacent cylinders.
  • An important aspect of the preferred form of the invention resides in the provision of keeper members on each of the gears of the adjacent cylinders with each of the keeper members having a circular periphery which interferes with the teeth of the mating gears and which extend around all but a small portion of their gears.
  • the keeper members cooperate with the transfer cylinder gear to prevent engagement or disengagement of the gear of the transfer cylinder except in only one posi tion. In all other positions, the keeper members prevent axial movement of the transfer cylinder gear.
  • the keeper members and the transfer cylinder gear include means which are operative to prevent re-engagement of the gear teeth in the event they are out of alignment one-half gear tooth width, together with means for camming the gear teeth into exact alignment if the gears are aligned within one-half gear tooth width.
  • a second transfer unit comprising three transfer cylinders 30, 32, 34 is operative to transfer the sheets from the impression cylinder of the second unit 14 to the impression cylinder of the third unit 16, while another transfer cylinder 36 transfers the sheets between the impression cylinders of the third and fourth units.
  • Each of the transfer cylinders has a circumference which is the same as or an equal multiple of a cylinder circumference required to print a single sheet.
  • the transfer cylinders are double size, that is,
  • FIG. 1 is a schematic illustration in side elevation of a typical multi-unit press in which the principles of this invention may be used;
  • FIG. 2 is a sectional view along line 2-2 of FIG. 1;
  • FIG. 2A is an enlarged view, partly in section, of one of the gripper cam followers
  • FIG. 3 is a sectional view along line 33 of FIG. 2;
  • FIG. 4 is a sectional view along line 4-4 of FIG. 2;
  • FIG. 5 is an elevational view of one of the keeper rings
  • FIG. 6 is a view along line 6-6 of FIG. 5;
  • FIG. 7 is a fragmentary view illustrating the meshing engagement of the keeper ring with the transfer cylinder gear
  • FIG. 8 is a view similar to FIG. 7 and shows the mesh of the gears and the position of the keeper rings
  • FIG. 9 illustrates the position of the gear teeth and the keeper ring when the gears are out of rotational alignment by one gear tooth
  • FIG. 10 is a view similar to FIG. 9 but shows the gears out of rotational alignment by less than one-half gear tooth;
  • FIG. 11 is a schematic hydraulic circuit which may be used with the disconnect arrangement
  • FIG. 12 is a schematic illustration of various conditions of rotational misalignment of the gears.
  • FIG. 1 illustrates a four-color multi-unit sheet fed press, in dicated generally by the reference numeral 10, and which includes individual printing units 12, 14, 16 and 18.
  • a pile feeder not shown, would be associated with the first printing unit 12 to feed sheets into that unit and a pile delivery, also not shown, would be associated with the unit 18 for receiving the printed sheets.
  • Each of the units 12, 14, 16 and 18 includes an appropriate inker mechanism and dampener mechanism, indicated generally by the reference numeral 20, together with a plate cylinder 22, blanket cylinder 24 and impression cylinder 26.
  • a first transfer cylinder 28 they have a diameter twice the diameter of the impression cylinders.
  • Each of the transfer cylinders includes two sets of grippers so that as a transfer cylinder is transferring a sheet to one cylinder it is receiving a sheet from another cylinder.
  • the transfer cylinders 28 and 36 are conventional in construction and operation so further description of these transfer cylinders is believed unnecessary.
  • the two outer cylinders 30,34 are angularly arranged on opposite sides of the center cylinder 32 with a line interconnecting the centers of rotation of the three cylinders defining an angle which is other than l.
  • the cylinder 30 includes a pair of gaps 42,44 in which conventional grippers 41 are disposed.
  • the transfer cylinder 34 has a pair of gaps 38,40 in which grippers 39 are disposed.
  • the center cylinder 32 is of the same construction as the other two cylinders, having gaps 46, 48 in which grippers 47 are disposed.
  • the grippers are supported for pivoting movement in a shaft, one such shaft being shown at 43 in FIG. 2.
  • Appropriate spring means act on the grippers to bias them to an open position.
  • a cam follower 45 operatively associated with shaft 43, cooperates with a stationary cam 49 to move the grippers to a closed position.
  • a sheet is transferred from the transfer cylinder 30 to the transfer cylinder 32 when the gaps 42,48 on the two cylinders are aligned thereby accommodating the radially outward movement of the grippers 47,41.
  • a sheet is transferred from the cylinder 32 to the cylinder 34 when the gaps 38,46 are facing each other and the grippers 47,39 are interdigitated with the gaps accommodating the radially outward movement of the grippers.
  • a sheet transferred to cylinders 30 and 34 has the freshly printed side facing the cylinder surface while the freshly printed side faces away from the surface of cylinder 32.
  • Each of the cylinders and their associated gears is supported for rotation between the side frames 58 with cylinder 32 and its associated gear 54 being supported on a shaft 60.
  • the shaft 60 and the bearings supporting the shaft are slidably mounted in the side frames 58 so that the cylinder 32, including gripper cam follower 45, may be shifted axially to displace the gear 54 out of the plane of the two gears 52,56.
  • Appropriate means are connected to the shaft 60 to shift the cylinder 32 which, as shown, comprises a hydraulic cylinder 61 and which is selectively actuated to shift the cylinder 32 to the right, as viewed in FIG. 2.
  • the drive through the press is interrupted thereby isolating units 16 and 18 from the units 12 and 14.
  • the nose portion 45a of the follower is axially elongated so that the nose portion shifts axially with cylinder 32 but remains in engagement with cam 49.
  • means are provided for preventing both the disconnect and re-connect of the cylinder 32 except in a predetermined angular position together with means for maintaining the cylinder 32 in that predetermined angular position when disconnected so that the adjacent cylinders 30,34 may be individually rotated without the grippers on these cylinders interfering with the surface of the cylinder 32.
  • the gear 52 is provided with a keeper ring 62 on the axial outer face thereof.
  • the gear 56 is provided with a keeper ring 64. Since the two rings 62,64 are similar in construction, only the ring 62 will be described in detail, it being understood that the same description applies to the ring 64.
  • the construction of the keeper rings is best viewed in FIGS. 5, 6 and 7 and comprises a generally flat annular plate having a generally circular periphery 66 formed at a radius r,.
  • the radius r is at least large enough to interfere with the mating gear 54. As shown, the radius r actually corresponds to the outside radius of the gear 52. It will be appreciated that with the keeper rings having this radius r, the rings radially overlap the teeth on he gear 54 at the point of mesh between the gears 52, 54 and 56, and thereby preclude axial shifting of the gear 54.
  • a short arcuate interrupted segment 68 is provided on the periphery 66 of the keeper rings.
  • the arcuate segment 68 is formed on a radius r which is slightly greater than the radius of the addendum circle of the gear 54.
  • Lug 70 has a tapered nose portion which cooperates with a flared mouth in opening 71 to facilitate engagement of the lug in the mating opening.
  • the axial extent of lug 70 is such that the lug enters the mating portion of opening 71 before the gears have moved completely out of mesh, thereby assuring that cylinder 32 does not rotate relative to the cylinders 30,34 during the disconnect operation.
  • the cylinder 32 in addition to having a pair of gripper gaps 46,48 has a pair of longitudinally extending machined flats 72,73 which form interrupted portions in the otherwise circular periphery of the cylinder.
  • the angular spacing of the two flats 72,73 coincides with the angular spacing of the cylinders 30,34 about the cylinder 32 so that, upon disconnect, the flat 72 is facing the cylinder 34 while the flat 73 is facing the cylinder 30.
  • independent rotation of the cylinders 30,34 may be accomplished with the flats 72,73 providing the required space into which the grippers 39,41 on the cylinders 34,30 may open as the cylinders are rotated. It will be appreciated that without the flats 72,73, the radial movement of the grippers 39,41 while the cylinder 32 is stationary would result in interference between the grippers and the periphery of the cylinder 32.
  • the flats 72,73 do not adversely affect the sheets carried by cylinder 32 since the printed side of the sheets is facing away from the surface of that cylinder so that the corners or edges of the flats contact only the back of the sheets.
  • the foregoing arrangement provides means for disengaging the cylinder 32 in a predetermined angular relationship and maintaining that angular position of the cylinder while permitting individual rotation of the adjacent cylinders.
  • this invention contemplates means for re-connecting the cylinder 32 in exactly the same angular position relative to the cylinders 30,34 which it occupied prior to disengagement. Since the cylinder 32 remains stationary upon disconnect due to the engagement of the lug 70 in the aperture 71, the retiming of the transfer cylinders requires positioning of the cylinders 30,34 in the precise position which they occupied when the transfer cylinder 32 was disconnected.
  • the keeper rings 62,64 on the gears 52,56 prevented axial shifting of the cylinder 32 except in one predetermined angular position and these same keeper rings are the means by which the retiming of the cylinders is accomplished.
  • the gears 52,56 it is necessary for the gears 52,56 to be rotated until the arcuate segments 68 on the keeper rings 62,64 are precisely aligned with the position at which the gear 54 will move back into mesh with the gears 52,56.
  • FIGS. 9 and 10 there are illustrated special camming gear teeth 80,81 and 82 which are carried on the gear 54.
  • each of the teeth 84,86 has a beveled or camming surface 85 on opposite sides thereof.
  • the tooth 80 has similar beveled surfaces 87 while the'teeth 81,82 have a single beveled surface 89.
  • FIG. 12A the teeth 84,81 are illustrated as being out of rotational alignment by less than three-fourths of a tooth but by at least one-half tooth. In this condition the blunt or flat forward end of the tooth 81 engages the equally blunt or flat end of the tooth 84 and blocks further axial movement of the gear 54 into the gear 52.
  • FIG. 128 the teeth are illustrated as being out of rotational alignment by less than one-half tooth and, in this condition, the beveled surface 89 on the tooth 81 engages the beveled surface 85 on the tooth 84.
  • FIG. 12C illustrates a condition wherein the teeth are out of rotational alignment by less than one full tooth but more than three-fourths of a tooth.
  • the forward end of the toothv 81 engages the beveled surface 85 on the tooth 84.
  • the resulting camming action of the tooth 81 against the surface 85 causes rotation of the gear 52 in a direction which moves the gear 52 to a position where it is one full I tooth out of proper rotational alignment and gear 54 then engages the keeper ring, preventing further axial movement.
  • FIG. 9 illustrates the relationship of the gears 52,54 where the gears are out of the desired rotational alignment by one full tooth and, as is apparent from that Figure, the tooth 82 is blocked by the keeper ring at 62b thereby preventing remeshing of the gears.
  • FIG. 10 illustrates a condition of the gears similar to that explained above in connection with FIG. 128 wherein the gears are out of rotational alignment by less than one-half tooth so that the beveled surfaces on the teeth of the gear 54 cooperate with the beveled surfaces on the teeth 84,86 to provide a camming action which rotates the gear 52 and its associated keeper plate to a position wherein the gear 54 may move fully into mesh with the gear 52.
  • the recesses 90,92 enable the cooperating beveled surfaces on the teeth to cam the gears to the proper aligned position, thereby avoiding engagement of gear 54 with the keepers.
  • the recesses 90,92 enable the cooperating beveled surfaces on the teeth to cam the gears to a position where the gears are one full tooth out of alignment so that the blocking engagement illustrated in FIG. 9 occurs.
  • the gear 54 includes a second set of teeth which cooperate with the gear 56 and the keeper ring 64 in precisely the same manner as described.
  • the axial extent of lug will be such that it remains in the corresponding mating portion of opening 71 while the teeth on gear 54 are moving into the teeth 84,86 so that the cylinder 32 remains rotationally stationary until a clear go condition is established. It is to be noted that with the cylinder 32 secured against rotational movement, the camming action between the teeth described in connection with FIGS. 9, 10 and 12 results in rotation of gears 52,56 and, hence, each of the press units l2, l4, l6 and 18.
  • Each of the gears 52,56 is provided with a sensing block 94.
  • a pair of sensing probes 96 which comprise a part of a conventional proximity switch sensing head.
  • the angular position of the sensing blocks 94 and the probes 96 is such that when the cylinders are in the position shown in FIG. 4, the proximity switch sensing mechanism will indicate that the two cylinders 30,34 and their associated keeper plates are in a disconnect or reconnect position.
  • An appropriate circuit may be employed with the proximity switch sensing heads so that actuation of the hydraulic cylinder 61 is prevented except when the proximity switches indicate the cylinders are in the proper rotational position.
  • FIG. 11 One such circuit is shown in FIG. 11 and comprises an accumulator circuit having a threeposition solenoid actuated valve 100, an accumulator 102, a pressure switch 104 and a motor driven pump P.
  • the valve has a pair of solenoids 106,108, solenoid 108 being operative to move cylinder 32 to an engaged position and solenoid 106 being operative to actuate the valve to move the cylinder to a disengaged position.
  • the circuit is actuated by the operator depressing a suitable control button to energize the appropriate solenoid 106,108 which will actuate the valve 100 and introduce hydraulic pressure to the hydraulic cylinder 61. If the gears 52, 54, 56 are properly positioned, the hydraulic cylinder will move the cylinder 32 and its gear 54 into or out of mesh with the gears 52,56. Appropriate limit switches LS-l and LS-2 are associated with the hydraulic cylinder 61 to signal when the cylinder has reached its extreme positions in either a connect or disconnect direction.
  • hydraulic pressure will be maintained on the cylinder 61 both in the connect and the disconnect position to maintain cylinder 32 in the desired position.
  • the limit switches LS-l and LS-2 are adjusted to shut down the press upon any significant movement of cylinder 32 except during the disconnect or connect operation.
  • the described arrangement not only provides a means for disconnecting units of a multi-unit press but also assures that during normal printing operations the driving forces throughout the entire press drive train are transmitted solely through meshing gear teeth. This is a highly important advantage in a multi-unit press where registry between units must be accurately maintained.
  • transfer cylinders having generally circumferentially continuous surfaces have been disclosed, it is to be understood that the principles of the invention may be used with transfer cylinders having other configurations and arrangements.
  • the transfer cylinders may be of a skeletal construction in which event the skeletal construction of the cylinder would provide the relieved or interrupted portions necessary to accommodate the movement of the grippers when the units are individually rotated.
  • the transfer cylinder 32 may be of a smaller diameter than cylinders 30,34 to provide the required clearance for the grippers.
  • meshing cylinder gears include means enabling engagement and disengagement of the teeth of the transfer cylinder gear with the cooperating teeth of the gears of said other cylinders in only one rotated position thereof.
  • each of said keeper members having a periphery at a radius which is large enough to interfere with the teeth of its associated gear and extending around all but a short interrupted segment thereof.
  • each of said keeper members comprises an arcuate recess in the periphery thereof with said arcuate recess being formed on a radius of at least slightly greater than the radius of the addendum circle on the transfer cylinder gear.
  • said keeper members include axially extending recesses adjacent said teeth means.
  • camming means includes camming surfaces on the teeth of at least one of the gears of each meshing pair of gears.
  • sensing means includes a pair of proximity switches mounted on said frame adjacent each of said pair of other cylinders and a sensing block rotatable with each of said other cylinders.
  • said transfer cylinders being related to their printing units such that the outer two cylinders have the freshly printed side of each sheet facing the cylinder and the middle cylinder has the unprinted side of each sheet facing the cylinder during sheet transfer.
  • non-rotatable cam means in the path of movement of said cam follower for operating said shaft means to open and close said grippers to receive and transfer sheets as required during normal sheet transferring conditions
  • said cam follower including extension means extendin g transverse of said cam
  • transfer cylinder, transfer cylinder gear, grippers, shaft and cam follower all being mounted for axial movement as a unitary assembly upon operation of said disconnecting means with said extension means having an axial extent sufficient to maintain said extension means in contact with said cam as said transfer cylinder is shifted axially.
  • said meshing cylinder gears include means enabling disengagement of the teeth of said transfer cylinder gear from the cooperating teeth of the gears of said cylinders in only one rotated position thereof.
  • said mating means includes an axially extending lug on said side frame and an opening in said transfer cylinder gear in which said lug is received,
  • a sheet fed printing press having a plurality of individual printing units and means for selectively drivingly interconnecting or disconnecting said units
  • said transfer cylinder having at least one interrupted portion in its periphery
  • said cylinders having sets of interdigitating sheet grippers thereon for successively transferring sheets by means of said grippers from one cylinder to the next,
  • said means preventing disengagement comprises means carried by one of said gears and cooperating with the other of said gears to block axial movement of said transfer cylinder gear.
  • sensing means being operative to sense axial movement of said gear means whereby any inadvertent movement of said gear means is sensed by aid sensing means.
  • said press including at least one sheet carrying cylinder having shaft means extending from either axial end thereof,
  • bearing means rotatably supporting said shaft means and said sheet carrying cylinder between said side frames
  • said sheet carrying cylinder including a gear at one axial end thereof constituting a portion of said gear train
  • said other cylinders each having a gear in mesh with said carrying cylinder gear
  • said actuator means being operative to move said sheet carrying cylinder and its gear axially to interrupt the drive train through said cylinder gears and thereby disconnect the printing units from each other.

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  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US130708A 1971-04-02 1971-04-02 Disconnect arrangement for multi-unit printing press Expired - Lifetime US3699887A (en)

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US13070871A 1971-04-02 1971-04-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847077A (en) * 1973-04-02 1974-11-12 Polygraph Leipzig Setting up arrangement for a combined printing and stamping machine
US4444106A (en) * 1981-12-14 1984-04-24 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Arrangement for selectively connecting coaxial gear wheels of a gear train of a dual mode printing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4250265B2 (ja) * 1999-07-19 2009-04-08 リョービ株式会社 オフセット印刷機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707914A (en) * 1952-05-27 1955-05-10 Harris Seybold Co Drive for multicolor press
US3221651A (en) * 1962-08-03 1965-12-07 Ohg Cigardi S P A Multi-units sheet-fed printing machine drive
US3516355A (en) * 1966-08-09 1970-06-23 Pietro Giuiuzza Multicolor sheet printing machine drive

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE682645C (de) * 1935-12-22 1939-10-19 Planeta Druckmaschinenwerk Akt Vorrichtung zum wechselweise erfolgenden selbsttaetigen Ein- und Ausschalten der Antriebe zweier verschiedener Foerdereinrichtungen von ein und demselben Haupttrieb aus, insbesondere bei mit einer Probebogenentnahme ausgeruesteter Bogenauslegevorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707914A (en) * 1952-05-27 1955-05-10 Harris Seybold Co Drive for multicolor press
US3221651A (en) * 1962-08-03 1965-12-07 Ohg Cigardi S P A Multi-units sheet-fed printing machine drive
US3516355A (en) * 1966-08-09 1970-06-23 Pietro Giuiuzza Multicolor sheet printing machine drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847077A (en) * 1973-04-02 1974-11-12 Polygraph Leipzig Setting up arrangement for a combined printing and stamping machine
US4444106A (en) * 1981-12-14 1984-04-24 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Arrangement for selectively connecting coaxial gear wheels of a gear train of a dual mode printing machine

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JPS5611587B1 (de) 1981-03-16
DE2215504B2 (de) 1981-09-10
DE2215504C3 (de) 1983-01-13
DE2215504A1 (de) 1972-10-05

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Owner name: HARRIS GRAPHICS CORPORATION MELBOURNE, FL A DE CO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HARRIS CORPORATION;REEL/FRAME:004227/0467

Effective date: 19830429