JPS5487569A - Portable watch with acoustic device - Google Patents

Portable watch with acoustic device

Info

Publication number
JPS5487569A
JPS5487569A JP15600177A JP15600177A JPS5487569A JP S5487569 A JPS5487569 A JP S5487569A JP 15600177 A JP15600177 A JP 15600177A JP 15600177 A JP15600177 A JP 15600177A JP S5487569 A JPS5487569 A JP S5487569A
Authority
JP
Japan
Prior art keywords
speaker
packing
diaphragm
speaker diaphragm
waterproof
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
JP15600177A
Other languages
Japanese (ja)
Inventor
Yojiro Okakura
Suguru Oota
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP15600177A priority Critical patent/JPS5487569A/en
Publication of JPS5487569A publication Critical patent/JPS5487569A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

PURPOSE:To perform even and long life waterproof fixing by using a packing for waterproof fixing of a metal diaphragm. CONSTITUTION:A speaker diaphragm 11a having undergone drawing is put on a speaker frame 11b. A packing 14 is disposed on the side face of the speaker diaphragm 11a. This packing 14 is fitted in the packing groove 13a of a speaker fixing ring 13 which has been brazed to a case band 12, applying a radial interference to the packing 14 between the speaker fixing ring 13 and speaker diaphragm 11a. Thereby, the speaker diaphragm 11a may be waterproof fixed to the speaker frame 11b without causing thermal diformation or the like and may be vibrated via the second speaker diaphragm 11d by a speaker diaphragm driving part 11c. If the sectional shape of the packing 14 is made semi-circular and a tapered part 11g is provided to the speaker diaphragm 11a, assembling characteristic will improve.
JP15600177A 1977-12-23 1977-12-23 Portable watch with acoustic device Pending JPS5487569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15600177A JPS5487569A (en) 1977-12-23 1977-12-23 Portable watch with acoustic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15600177A JPS5487569A (en) 1977-12-23 1977-12-23 Portable watch with acoustic device

Publications (1)

Publication Number Publication Date
JPS5487569A true JPS5487569A (en) 1979-07-12

Family

ID=15618156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15600177A Pending JPS5487569A (en) 1977-12-23 1977-12-23 Portable watch with acoustic device

Country Status (1)

Country Link
JP (1) JPS5487569A (en)

Similar Documents

Publication Publication Date Title
GB2011661B (en) Watch
ES492211A0 (en) A DEVIABLE TRANSDUCER HEAD MOUNTING ASSEMBLY
AU515085B2 (en) Nose cap and diaphragm assembly for injector
AU517289B2 (en) Electroacoustical transducer with tensioning means
IT8020070A0 (en) METHOD AND BALANCED PRESSURE EXTERNAL REFERENCE ELECTRODE ASSEMBLY.
ES245516U (en) Circular saw tool
USD245751S (en) Pair of crimping pliers
AU2350077A (en) Accelerometer with vibrating member
JPS5487569A (en) Portable watch with acoustic device
FR2424575A1 (en) PERFECTED WATCH CASE
USD248547S (en) Combined wrist watch case and band
FR2406240A1 (en) RETAINING SPRING FOR WATCH-BRACELET CASE
JPS522465A (en) Solar battery wrist watch
USD257083S (en) Support stand for a head phone set
JPS53124473A (en) Fixing structure of watch glass
JPS5344687A (en) Fixed enzyme membrane
JPS5337465A (en) Wristwatch with alarm device
SU490590A1 (en) Sheet Metal Cutter
USD248222S (en) Wrist watch
SU593326A1 (en) Electroacoustic transducer
FR2349868A1 (en) Slim-line battery operated watch - has circuit module superimposed on battery and held by frame ring
SU630593A1 (en) Thermal transducer
JPS5330576A (en) Manipulator
JPS55151286A (en) Sound annunciator for timepiece
JPS53107365A (en) Buzzer construction of electronic alarm watch