JPS57127951A - Manufacture for tape guide post of cassette for video tape recorder - Google Patents

Manufacture for tape guide post of cassette for video tape recorder

Info

Publication number
JPS57127951A
JPS57127951A JP56010707A JP1070781A JPS57127951A JP S57127951 A JPS57127951 A JP S57127951A JP 56010707 A JP56010707 A JP 56010707A JP 1070781 A JP1070781 A JP 1070781A JP S57127951 A JPS57127951 A JP S57127951A
Authority
JP
Japan
Prior art keywords
guide post
outer diameter
pin
same
hole
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.)
Granted
Application number
JP56010707A
Other languages
Japanese (ja)
Other versions
JPS6314431B2 (en
Inventor
Hiroshi Nakayama
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56010707A priority Critical patent/JPS57127951A/en
Publication of JPS57127951A publication Critical patent/JPS57127951A/en
Publication of JPS6314431B2 publication Critical patent/JPS6314431B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier

Abstract

PURPOSE:To achieve mass-production with good surface accuracy through a simple plastic processing, by pressing a short material for a guide post inserted to a forming hole of a die from both sides with one set of punched having the pressure pin of the same diameter as the boss insertion hole at the tip. CONSTITUTION:A formed hole 21 having almost the same inner diameter as an outer diameter of a guide post 29 to be objective is inserted to a die 20, to which a short member 27 with slightly smaller outer diameter than the outer diameter of the guide post and shorter length, is inserted. The member 27 is pressed from both sides at the same time by one set of punches 22, 25 having a pressing pin 23 with the same outer diameter almost the same inner diameter of a boss insertion hole 28 at the tip and having a step 24 extended toward orthogonal direction to the shaft at the base of the pin 23, and the pin 23 is pressed to the member 27 to form the hole 28, and the member 27 is extended to the step 24 to be contacted to form a hollow guide post having a specified outer diameter and length.
JP56010707A 1981-01-26 1981-01-26 Manufacture for tape guide post of cassette for video tape recorder Granted JPS57127951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010707A JPS57127951A (en) 1981-01-26 1981-01-26 Manufacture for tape guide post of cassette for video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010707A JPS57127951A (en) 1981-01-26 1981-01-26 Manufacture for tape guide post of cassette for video tape recorder

Publications (2)

Publication Number Publication Date
JPS57127951A true JPS57127951A (en) 1982-08-09
JPS6314431B2 JPS6314431B2 (en) 1988-03-30

Family

ID=11757767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010707A Granted JPS57127951A (en) 1981-01-26 1981-01-26 Manufacture for tape guide post of cassette for video tape recorder

Country Status (1)

Country Link
JP (1) JPS57127951A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62248156A (en) * 1986-03-26 1987-10-29 Sanshin Kogyo Kk Manufacture of tape guide
US4789114A (en) * 1986-12-15 1988-12-06 Sanwa Needle Bearing Co., Ltd. Composite tape guide of cassette tape for VTR
US4882924A (en) * 1987-09-15 1989-11-28 Sanshin Industry Co., Ltd. Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102863A (en) * 1977-02-21 1978-09-07 Nippon Kagaku Kk Socket wrench manufacturing process
JPS5411063A (en) * 1977-06-29 1979-01-26 Hideaki Kudou Method of making hollow metallproduct having sold or hollow core axis

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102863A (en) * 1977-02-21 1978-09-07 Nippon Kagaku Kk Socket wrench manufacturing process
JPS5411063A (en) * 1977-06-29 1979-01-26 Hideaki Kudou Method of making hollow metallproduct having sold or hollow core axis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62248156A (en) * 1986-03-26 1987-10-29 Sanshin Kogyo Kk Manufacture of tape guide
JPH054739B2 (en) * 1986-03-26 1993-01-20 Sanshin Kogyo Kk
US4789114A (en) * 1986-12-15 1988-12-06 Sanwa Needle Bearing Co., Ltd. Composite tape guide of cassette tape for VTR
US4882924A (en) * 1987-09-15 1989-11-28 Sanshin Industry Co., Ltd. Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape

Also Published As

Publication number Publication date
JPS6314431B2 (en) 1988-03-30

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