JPH0143959B2 - - Google Patents

Info

Publication number
JPH0143959B2
JPH0143959B2 JP56055851A JP5585181A JPH0143959B2 JP H0143959 B2 JPH0143959 B2 JP H0143959B2 JP 56055851 A JP56055851 A JP 56055851A JP 5585181 A JP5585181 A JP 5585181A JP H0143959 B2 JPH0143959 B2 JP H0143959B2
Authority
JP
Japan
Prior art keywords
keyboard
key
keys
mold
metal plate
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
Application number
JP56055851A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57171393A (en
Inventor
Masao Kondo
Shinji Kumano
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.)
Yamaha Corp
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Priority to JP56055851A priority Critical patent/JPS57171393A/ja
Priority to US06/368,802 priority patent/US4464325A/en
Publication of JPS57171393A publication Critical patent/JPS57171393A/ja
Publication of JPH0143959B2 publication Critical patent/JPH0143959B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/12—Keyboards; Keys
    • G10C3/125—Materials or treatment of materials for the manufacturing of keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/758—Musical equipment
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacture Of Switches (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
JP56055851A 1981-04-14 1981-04-14 Manufacture of keyboard device Granted JPS57171393A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56055851A JPS57171393A (en) 1981-04-14 1981-04-14 Manufacture of keyboard device
US06/368,802 US4464325A (en) 1981-04-14 1982-04-14 Method of producing multi-key structure for keyboard musical instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055851A JPS57171393A (en) 1981-04-14 1981-04-14 Manufacture of keyboard device

Publications (2)

Publication Number Publication Date
JPS57171393A JPS57171393A (en) 1982-10-21
JPH0143959B2 true JPH0143959B2 (en]) 1989-09-25

Family

ID=13010539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055851A Granted JPS57171393A (en) 1981-04-14 1981-04-14 Manufacture of keyboard device

Country Status (2)

Country Link
US (1) US4464325A (en])
JP (1) JPS57171393A (en])

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59136689U (ja) * 1983-03-03 1984-09-12 東海楽器製造株式会社 電子鍵盤楽器等の鍵盤の構造
US5469772A (en) * 1993-04-01 1995-11-28 Vandervoort; Paul B. Linearly reciprocating keyboard key incorporating two guide pins
US5929357A (en) * 1997-07-03 1999-07-27 Yamaha Corporation Keyboard assembly having plurality of keys formed integrally with common key support
US7935287B2 (en) * 2009-03-06 2011-05-03 Hewlett-Packard Development Company, L.P. Keyboard case manufacturing system and method
JP6938181B2 (ja) * 2017-03-21 2021-09-22 キヤノン株式会社 成形方法、および製造方法
JP7616236B2 (ja) * 2020-11-30 2025-01-17 ヤマハ株式会社 鍵盤装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55143722A (en) * 1979-04-26 1980-11-10 Nissan Motor Switching device
AT373199B (de) * 1979-12-13 1983-12-27 Schmied K G Silhouette Modellb Verfahren zum herstellen von werkstuecken, insbesondere von brillenbuegeln
JPS56128523A (en) * 1980-03-11 1981-10-08 Matsushita Electric Ind Co Ltd Method of producing keyboard switch

Also Published As

Publication number Publication date
US4464325A (en) 1984-08-07
JPS57171393A (en) 1982-10-21

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