US3478629A - Hole punching devices for recording media - Google Patents

Hole punching devices for recording media Download PDF

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Publication number
US3478629A
US3478629A US635245A US3478629DA US3478629A US 3478629 A US3478629 A US 3478629A US 635245 A US635245 A US 635245A US 3478629D A US3478629D A US 3478629DA US 3478629 A US3478629 A US 3478629A
Authority
US
United States
Prior art keywords
punch
die
punches
punch head
hole punching
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
US635245A
Other languages
English (en)
Inventor
Birger Henrik Ek
Sven Gunnar Walter Stenudd
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.)
Facit AB
Original Assignee
Facit AB
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 Facit AB filed Critical Facit AB
Application granted granted Critical
Publication of US3478629A publication Critical patent/US3478629A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/02—Methods or arrangements for marking the record carrier in digital fashion by punching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8828—Plural tools with same drive means
    • Y10T83/8831—Plural distinct cutting edges on same support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9425—Tool pair
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9428—Shear-type male tool
    • Y10T83/943—Multiple punchings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/944—Multiple punchings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool
    • Y10T83/9476—Tool is single element with continuous cutting edge [e.g., punch, etc.]

Definitions

  • the punch guide means are formed as a bar having a cylindrical shank portion 12 fitted into a base member and adjustable angularly and longitudinally therein.
  • the punches 21 are mounted for longitudinal displacement within transversal holes drilled in said punch guide 14 employing the overhanging rod-shaped punch die 17 mounted in said punch head 12, 14 as a drill jig.
  • the upper ends of the punches 21 are connected to bell cranks 27 actuated by push rods 29 from a drive mechanism known in itself, and this connection is established and disestablished by turning the punch head shank 12 relative to the base member 10.
  • This invention relates to hole punching devices and the like apparatus for punch cards, punch tapes and similar recording media.
  • the improved punch head comprises a punch die, a plurality of punches for engaging punch holes in the die and punch guides, and according to the invention the punch guides and punch die are rigidly combined to an exchangeable unit provided with a cylindrical shank member which is supported by a base member and is angularly as well as longitudinally adjustable therein.
  • FIG. 1 is a fragmentary elevation view of a punch head as seen from the side wherefrom the tape is inserted
  • FIG. 2 is a somewhat diagrammatical cross section view along A--A in FIG. 1,
  • FIG. 3 is a top plan view of a punch die
  • FIGS. 4 and 5 is an elevation view and end view, respectively, of a second embodiment of the principal parts of a punch head.
  • numeral 10 denotes a base member which is preferably shaped as a thick plate.
  • This plate 10 has punching mechanism is supported by a rigid base memher, most often made of cast iron.
  • the punch die which must be made of a wear-resistant material, usually hardened steel, forms as a rule a separate unit that is mounted on the base member.
  • the fitting of the punch guides and the punch die in the base is therefore an expensive operation. Since the punches, the punch guides and the die belong to those components subjected to the heaviest wear it is desirable that they can be exchanged swiftly and without much fitting. This is not possible in most punching devices commercially available at present.
  • the present invention has for its object the provision of a punch head without these drawbacks.
  • This punch head is easily exchangeable by loosening a single screw, and the punch die as well as the punches and punch guides are removed in a single operation. All precision a cylindrical bore 11 therein receiving a shank portion 12 of a punch head unit 14 which is angularly and longitudinally adjustable within the said bore.
  • the punch head shank 12 is secured axially and radially by a set screw 13.
  • the punch head 14 extends beyond the base member 10 and has its cross section shaped like a segment of a circle and acts as a punch guide.
  • the punch head is preferably made of a material suited for guiding the punches which are made of steel or the like, such as brass or auto-lubricating bronze. If the punch head 14 is not made of a self-lubricating material it is preferably formed with an axial bore 15 which is filled with a lubricant.
  • a cylindrical punch die 17 is rigidly mounted in a bore 18 in the cylindrical shank 12.
  • the spacing between the highest portion of the die 17 and the flat bottom surface 16 0f the punch head is determined by the thickness of the medium to be punched.
  • punch holes 19 are drilled therein, corresponding in FIG. 3 to an 8-channel punch tape. The holes are drilled with clearance downwards to prevent the punched-out matter to stick. If the die shall be hardened this is also effected before its mounting in the punch head, of course.
  • the punch die now is used as a drill jig for drilling the guide holes 20 in the punch head, to ensure that the latter will become accurately aligned with those in the die.
  • the fitting of the die 17 in the bore 18 need not be made with any too great accuracy, as a minor deviation of the die holes from 'being perpendicular to the surface 16 is of no importance. 'By turning the punch head relative to the bore 11 any possible oblique position of the punches rela-' tive to the punch drive mechanism will be readily compensated.
  • the punches 21 are mounted in the holes 20 and the punch head can be inserted by its shank 12 in the bore 11 in plate 10.
  • the punch head is turned in such a way that the punches coincide for example with the plane indicated at 22 in FIG. 1.
  • the punch head is turned clockwise until a milled-down portion 23 near the top of each punch engages a slot 24 in a bell crank 27 transmitting the drive to the punch.
  • the top portion of the latter is received in a transverse slot in the bell crank 27.
  • All bell cranks are supported by a common axle 28 and are actuated by push rods 29 engaging recesses 29a in the bell cranks.
  • the push rods 29 are actuated individually in any known or suitable manner, for example by electromagnets (not illustrated).
  • a push rod 29 When a push rod 29 is moved to the left in FIG. 1, its associated bell crank 27 urges the punch 21 downwards, and a hole is punched in the recording medium. On return of the bell crank the punch is pulled back into initial position.
  • two supporting pads 30, 31 are provided. These pads are shaped with oblique sides 32 defining a chute for the punched-out matter.
  • the pads 30, 31 are secured to the base member 10.by means of screws 33, and a plate 34 is mounted 'as a cover at their outer face.
  • a punch tape can be inserted laterally into the space 35 between the punch head and the die. This is eifected much faster than threading the tape through a gap closed at both sides.
  • a worn punch head may simply be scrapped, as it is much less expensive to manufacture than earlier known punch heads of a comparable quality.
  • the punch head is made of a steel cylinder 35 with an axial, eccentrically offset bore 36.
  • the cylinder 35 further has an axial slit 38 for guiding the recording tape through the punch head.
  • the slit partly intersects the bore 36.
  • the distance between the bottom 39 of the slit and the circumference of the bore 36 corresponds to the thickness of the medium to be punched.
  • the portion 40 of the cylinder disposed below the slit provides the punch die and has holes 19 machined therein like the die illustrated in FIG. 3.
  • the wall of the cylinder 35 above the bore 36 is formed with corresponding holes with a greater diameter than those of the die.
  • a hollow bush 37 of bronze or similar material is forced into the bore 36, and holes are drilled through the walls of the bush 37, using the die as a drill jig. After machining the drilled holes to final measures and smoothness the punches are mounted in the holes.
  • the bush 37 acts as a punch guide, and its hollow interior is preferably filled with a lubricant.
  • the bush may be made of a self-lubricating bronze or the like, instead, which makes special oil channels unnecessary.
  • This punch head is mounted in the same way as the first one described above, by inserting the cylindrical shank portion41 into the bore in the base member 11.
  • a hole punching device for punch tapes, punch cards and the like recording media comprising a punch die, a plurality -of punches and guide means for the punches, wherein the said punch guide means, the punches and the punch die are combined in an exchangeable punch head which is provided with a cylindrical shank portion mounted with angular and longitudinal adjustability in a base member.
  • said punch die comprising an elongated, substantially cylindrical portion disposed within said recess parallel to the cylinder axis.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US635245A 1966-05-03 1967-05-01 Hole punching devices for recording media Expired - Lifetime US3478629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE6019/66A SE312941B (da) 1966-05-03 1966-05-03

Publications (1)

Publication Number Publication Date
US3478629A true US3478629A (en) 1969-11-18

Family

ID=20267732

Family Applications (1)

Application Number Title Priority Date Filing Date
US635245A Expired - Lifetime US3478629A (en) 1966-05-03 1967-05-01 Hole punching devices for recording media

Country Status (4)

Country Link
US (1) US3478629A (da)
GB (1) GB1164242A (da)
NL (1) NL151815B (da)
SE (1) SE312941B (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668960A (en) * 1969-10-28 1972-06-13 Int Standard Electric Corp Arrangement for lubricating the perforating pins of tape and card perforators
US4052871A (en) * 1976-08-13 1977-10-11 J. J. & M. Stock-piercing punch mechanism
US20060219081A1 (en) * 2005-03-29 2006-10-05 Brother Kogyo Kabushiki Kaisha Punch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325437A (en) * 1942-07-22 1943-07-27 Victor Metal Products Corp Hole punching die

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2325437A (en) * 1942-07-22 1943-07-27 Victor Metal Products Corp Hole punching die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668960A (en) * 1969-10-28 1972-06-13 Int Standard Electric Corp Arrangement for lubricating the perforating pins of tape and card perforators
US4052871A (en) * 1976-08-13 1977-10-11 J. J. & M. Stock-piercing punch mechanism
US20060219081A1 (en) * 2005-03-29 2006-10-05 Brother Kogyo Kabushiki Kaisha Punch
US20100037672A1 (en) * 2005-03-29 2010-02-18 Brother Kogyo Kabushiki Kaisha Punch
US8596105B2 (en) 2005-03-29 2013-12-03 Brother Kogyo Kabushiki Kaisha Punch

Also Published As

Publication number Publication date
GB1164242A (en) 1969-09-17
NL6706025A (da) 1967-11-06
NL151815B (nl) 1976-12-15
SE312941B (da) 1969-07-28
DE1549725B2 (de) 1973-06-07
DE1549725A1 (de) 1971-04-01

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