JPS5482211A - Surface working method of tape guide drum - Google Patents

Surface working method of tape guide drum

Info

Publication number
JPS5482211A
JPS5482211A JP15011877A JP15011877A JPS5482211A JP S5482211 A JPS5482211 A JP S5482211A JP 15011877 A JP15011877 A JP 15011877A JP 15011877 A JP15011877 A JP 15011877A JP S5482211 A JPS5482211 A JP S5482211A
Authority
JP
Japan
Prior art keywords
drum
tape
die
knurling
face
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.)
Pending
Application number
JP15011877A
Other languages
Japanese (ja)
Inventor
Takayuki Fukunaga
Atsushi Saito
Hiroo Tanaka
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP15011877A priority Critical patent/JPS5482211A/en
Publication of JPS5482211A publication Critical patent/JPS5482211A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/14—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons knurled articles

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

PURPOSE:To readily knurl the tape contact face of a guide drum along the tape lead face by using a knurling die which is provided on a port of it with a notch along the tape lead face. CONSTITUTION:A knurling die 15 and a roller 16 are opposed to both sides of a lower staitonary drum 2 at approximately 180 deg. and are determined at mutally specified heights to assume a mutally parallel state. When the die is pressure contacted to the peripheral surface of the drum 2 under specified storng pressing force, the knurling 16 of the die 15 is pressure contacted to the tape contact face 7 of the drum 2 and the die 15 is escaped by the notch part 17 with respect to the cylindrical part 23 lower than the tape lead face 6 of the drum 2. When in this state the drum 2 is rotation-driven approximately 180 deg., the die 15 rotates about 360 deg. and by the knurling 16 thereof, knurling 10 is worked at one time in the approximately 180 deg. region of the tape contact face 7 of the drum 2. Thereby, the tape contact face of the tape guide drum may be readily knurled along the tape lead face.
JP15011877A 1977-12-14 1977-12-14 Surface working method of tape guide drum Pending JPS5482211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15011877A JPS5482211A (en) 1977-12-14 1977-12-14 Surface working method of tape guide drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15011877A JPS5482211A (en) 1977-12-14 1977-12-14 Surface working method of tape guide drum

Publications (1)

Publication Number Publication Date
JPS5482211A true JPS5482211A (en) 1979-06-30

Family

ID=15489872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15011877A Pending JPS5482211A (en) 1977-12-14 1977-12-14 Surface working method of tape guide drum

Country Status (1)

Country Link
JP (1) JPS5482211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885965A (en) * 1981-11-16 1983-05-23 Clarion Co Ltd Rotary head type head drum device
JPS61105937U (en) * 1984-12-13 1986-07-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885965A (en) * 1981-11-16 1983-05-23 Clarion Co Ltd Rotary head type head drum device
JPS61105937U (en) * 1984-12-13 1986-07-05

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