JPS647838A - Handset for telephone - Google Patents

Handset for telephone

Info

Publication number
JPS647838A
JPS647838A JP16368787A JP16368787A JPS647838A JP S647838 A JPS647838 A JP S647838A JP 16368787 A JP16368787 A JP 16368787A JP 16368787 A JP16368787 A JP 16368787A JP S647838 A JPS647838 A JP S647838A
Authority
JP
Japan
Prior art keywords
transmitting
bottomed
handset
bottom part
grooves
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
JP16368787A
Other languages
Japanese (ja)
Inventor
Yoshinobu Hisatsune
Tetsuaki Kato
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.)
Aiphone Co Ltd
Original Assignee
Aiphone Co 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 Aiphone Co Ltd filed Critical Aiphone Co Ltd
Priority to JP16368787A priority Critical patent/JPS647838A/en
Publication of JPS647838A publication Critical patent/JPS647838A/en
Pending legal-status Critical Current

Links

Landscapes

  • Telephone Set Structure (AREA)

Abstract

PURPOSE:To execute a stable speech irrespective of a holding angle of a handset handle by providing plural bottomed grooves on the surface of a transmitting port, and piercing a transmitting hole in the bottom part of the respective bottomed grooves. CONSTITUTION:On the transmitting port surface 1a, bottomed grooves Un (n denotes 1-4) are provided, and formed so that the depth of the bottomed groove becomes 1/2-2/3 of the thickness of the transmitting port surface 1a. Also, in the bottom part of the respective bottomed grooves Un, a transmitting hole Hn or Hn' is pierced. When a handset is held by a handset handle 3, a sound signal which has passed through the bottomed groove Un is inputted to the transmitting hole Hn or Hn' which has been pierced in the bottom part of the bottomed groove Un, irrespective of whether a part of the transmitting port surface 1a is covered with a face FA. In such a way, the transmitting output level of the same degree as a conventional transmitting output level is obtained.
JP16368787A 1987-06-30 1987-06-30 Handset for telephone Pending JPS647838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16368787A JPS647838A (en) 1987-06-30 1987-06-30 Handset for telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16368787A JPS647838A (en) 1987-06-30 1987-06-30 Handset for telephone

Publications (1)

Publication Number Publication Date
JPS647838A true JPS647838A (en) 1989-01-11

Family

ID=15778688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16368787A Pending JPS647838A (en) 1987-06-30 1987-06-30 Handset for telephone

Country Status (1)

Country Link
JP (1) JPS647838A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115450A (en) * 1984-06-29 1986-01-23 ウオング・ラボラトリ−ズ・インコ−ポレ−テツド Artificial telephone transceiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115450A (en) * 1984-06-29 1986-01-23 ウオング・ラボラトリ−ズ・インコ−ポレ−テツド Artificial telephone transceiver

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