JPS5796284A - Case construction for portable watch with alarm device - Google Patents
Case construction for portable watch with alarm deviceInfo
- Publication number
- JPS5796284A JPS5796284A JP17157180A JP17157180A JPS5796284A JP S5796284 A JPS5796284 A JP S5796284A JP 17157180 A JP17157180 A JP 17157180A JP 17157180 A JP17157180 A JP 17157180A JP S5796284 A JPS5796284 A JP S5796284A
- Authority
- JP
- Japan
- Prior art keywords
- movement
- drum
- rear lid
- face
- piezo
- 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
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
- G04B37/05—Fixed mountings for pocket or wrist watches
- G04B37/052—Fixed mountings for pocket or wrist watches with shock damping means not related to the winding stem
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To eliminate generation of voltage in the coil spring due to vibration by fixing the movement between the drum and the upper flat face of the rear lid in a wat that connects the piezo-electric element that is attached to the rear lid and the movement with a coil. CONSTITUTION:A movement 5 is provided radially with protrusion 5d round all the circumference that give very small gap for the machine diameter of the drum 1. The movement 5 is vertically fixed by pressing down the upper face of the movement 5 with the lower face 1a of the inner protrusion of the drum and pushing up the lower face 5e of the outer movement periphery with the upper face 3a of the screw section on the rear lid 3. The outer circumferential protrusions 5d of the movement 5 are further provided with protrusions 5f at several positions to give tightening allowance to the machine diameter of the drum 1 and fix the radial direction of the movement. When the watch receives shock, its movement 5 is not vibrated, and no voltage is, therefore, developed in the coil spring 7 that connects the movement 5 and a piezo-electric element 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17157180A JPS5796284A (en) | 1980-12-05 | 1980-12-05 | Case construction for portable watch with alarm device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17157180A JPS5796284A (en) | 1980-12-05 | 1980-12-05 | Case construction for portable watch with alarm device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5796284A true JPS5796284A (en) | 1982-06-15 |
Family
ID=15925608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17157180A Pending JPS5796284A (en) | 1980-12-05 | 1980-12-05 | Case construction for portable watch with alarm device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5796284A (en) |
-
1980
- 1980-12-05 JP JP17157180A patent/JPS5796284A/en active Pending
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