JPS559280A - Key input unit - Google Patents

Key input unit

Info

Publication number
JPS559280A
JPS559280A JP8189778A JP8189778A JPS559280A JP S559280 A JPS559280 A JP S559280A JP 8189778 A JP8189778 A JP 8189778A JP 8189778 A JP8189778 A JP 8189778A JP S559280 A JPS559280 A JP S559280A
Authority
JP
Japan
Prior art keywords
key
opening
display plate
panel
name
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
JP8189778A
Other languages
Japanese (ja)
Inventor
Akira Yamazaki
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8189778A priority Critical patent/JPS559280A/en
Publication of JPS559280A publication Critical patent/JPS559280A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To make ineffective the keying of the keys for items not used, by providing the means to detect the key symbol of not used key for key name plate set on the panel of the key input unit, setting the key name plate and correctly recognizing the key items not used immdiately and correctly. CONSTITUTION:A plurality of item keys 2 are located on the panel 3, the input item assigned to each key 2 is identified with the name plate 1 on the panel 3, opening 10 is formed on the display plate 1 corresponding to each key 2, the operation of the key 2 is enabled from the opening 10, and letters indicating the name of each item are described aroung the opening 10. Further, the opening 11 to be identified is provided with the display plate 1 corresponding to the location of the switches 7, 7' identifying the key name, and the combination of the open and closing of the switches 7 and 7' identifies the display plate 1. Further, on the display plate 1 on the panel 3, opening 12 is provided, the opening 12 is used as the identification representing the location of the item keys not used determined in advance for the display plate 1, and the knobs 5, 6 and the contacts 8, 9 of the switch for the detection of key identification not used make ineffective the keying of the item keys not used.
JP8189778A 1978-07-07 1978-07-07 Key input unit Pending JPS559280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8189778A JPS559280A (en) 1978-07-07 1978-07-07 Key input unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8189778A JPS559280A (en) 1978-07-07 1978-07-07 Key input unit

Publications (1)

Publication Number Publication Date
JPS559280A true JPS559280A (en) 1980-01-23

Family

ID=13759220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8189778A Pending JPS559280A (en) 1978-07-07 1978-07-07 Key input unit

Country Status (1)

Country Link
JP (1) JPS559280A (en)

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