JPS57127351A - Receptacle attachment structure of acoustic coupling device - Google Patents

Receptacle attachment structure of acoustic coupling device

Info

Publication number
JPS57127351A
JPS57127351A JP1268081A JP1268081A JPS57127351A JP S57127351 A JPS57127351 A JP S57127351A JP 1268081 A JP1268081 A JP 1268081A JP 1268081 A JP1268081 A JP 1268081A JP S57127351 A JPS57127351 A JP S57127351A
Authority
JP
Japan
Prior art keywords
receptacle
groove
casing
coupling device
cut
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
JP1268081A
Other languages
Japanese (ja)
Other versions
JPS632185B2 (en
Inventor
Tokuji Yoshino
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.)
Tamura Electric Works Ltd
Original Assignee
Tamura Electric Works 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 Tamura Electric Works Ltd filed Critical Tamura Electric Works Ltd
Priority to JP1268081A priority Critical patent/JPS57127351A/en
Publication of JPS57127351A publication Critical patent/JPS57127351A/en
Publication of JPS632185B2 publication Critical patent/JPS632185B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H04M1/2155—Acoustic coupling

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE:To realize an instant attachment of the receptacle of an acoustic coupling device and to simplify the structure of the coupling device, by securing such constitution in that the cut edge of a circular holding bar of a receptable is put into the cut groove of the opening part of a casing and then the receptacle is turned to attach the same to the opening part of the casing. CONSTITUTION:A circular holding bar 13 having a cut part 17 at a part of the circumference surface is provided on the outer circumference surface of a receptacle 10 to which a transmitter microphone piece 12 is fitted in a body. An opening part 18 having a diameter smller than the outer diameter of the bar 13 and containing a cut groove 19 at a part of the circumference surface is formed to a casing 16. At the same time, a hooking projected part 20 is provided at the fringe part of the part 18 at the side of the back of the casing 16, and close to the groove 19. Thus either one of the edges 13a and 13b of the part 17 is put into the groove 19 and the receptacle 10 is turned. Accordingly the bar 13 is inserted into the part 18 through the groove 19 to ensure an instant attachment of the receptacle 10.
JP1268081A 1981-01-30 1981-01-30 Receptacle attachment structure of acoustic coupling device Granted JPS57127351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1268081A JPS57127351A (en) 1981-01-30 1981-01-30 Receptacle attachment structure of acoustic coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1268081A JPS57127351A (en) 1981-01-30 1981-01-30 Receptacle attachment structure of acoustic coupling device

Publications (2)

Publication Number Publication Date
JPS57127351A true JPS57127351A (en) 1982-08-07
JPS632185B2 JPS632185B2 (en) 1988-01-18

Family

ID=11812087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1268081A Granted JPS57127351A (en) 1981-01-30 1981-01-30 Receptacle attachment structure of acoustic coupling device

Country Status (1)

Country Link
JP (1) JPS57127351A (en)

Also Published As

Publication number Publication date
JPS632185B2 (en) 1988-01-18

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