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Clock

A clock and watch mirror technology, applied in the field of clocks and watches, can solve the problems of reduced durability of the watch case and insufficient receiving sensitivity, and achieve the effects of improving receiving sensitivity, good design, and avoiding the offset of buffer parts

Inactive Publication Date: 2008-12-31
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned radio-controlled timepiece, although the structure of reducing the disturbance of the resonance phenomenon near the receiver of the radio-controlled timepiece is adopted by arranging a part of the non-magnetic part, since the case and the back cover are formed of metal parts, there is a problem that it cannot The problem of obtaining sufficient receiver sensitivity
In addition, in the conventional skeleton watch described in Patent Document 2, when the case is formed of glass and a hole through which the crown is inserted is provided on the case, there is a problem that the durability of the case is significantly reduced.

Method used

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no. 1 approach

[0056] A radio-controlled timepiece according to a first embodiment of the present invention will be described below with reference to the drawings.

[0057] FIG. 1 is a side sectional view showing an outline of a radio-controlled timepiece according to a first embodiment of the present invention.

[0058] FIG. 2 is a perspective view schematically showing a case of the radio-controlled timepiece of the above-mentioned embodiment.

[0059] image 3 It is an exploded perspective view of the case of the radio-controlled timepiece of the above-mentioned embodiment.

[0060] Figure 4 It is an enlarged cross-sectional view of a part of the periphery of the case of the radio-controlled timepiece of the above-mentioned embodiment.

[0061] Figure 5 It is a cross-sectional view showing the fixing structure of the peripheral portion of the case of the radio-controlled timepiece of the above-mentioned embodiment.

[0062] As shown in FIG. 1 , the radio controlled timepiece 1 of th...

no. 2 approach

[0117] Next, a radio controlled timepiece according to a second embodiment of the present invention will be described with reference to the drawings.

[0118] Fig. 6 is a side sectional view showing an outline of a timepiece according to a second embodiment of the present invention.

[0119] FIG. 7 is a perspective view schematically showing a case of the timepiece according to the second embodiment.

[0120] Figure 8 It is an exploded perspective view of the case of the timepiece of the said 2nd Embodiment.

[0121] Figure 9 It is an enlarged cross-sectional view of a part of the periphery of the case of the timepiece of the second embodiment.

[0122] Figure 10 It is a cross-sectional view showing the fixing structure of the peripheral portion of the case of the timepiece according to the second embodiment.

[0123] (Composition of clock)

[0124] As shown in FIG. 6 , the timepiece 1A of the second embodiment has a case 100 and a movement 210 as a timepiece body.

...

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PUM

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Abstract

The present invention provides a clock which can obtain good reception sensitivity. An electric wave clock (1) comprises: a watch lens (110) with watch lens glass (112), a back cover (120) which is arranged opposite to the watch lens (110), a casing portion (130) which is used for connecting the peripheral edges of the watch lens (110) and the back cover (120), and formed by non-magnetic components, an antenna arranged at the space formed between the watch lens (110) and the back cover (120) and used for receiving standard electric wave with temporal information, a drive control circuit portion for setting time according to the temporal information of standard electric wave received by the antenna (200), and for controlling the operation of a indicating pointer (170), and a indicating pointer driven by a step-by-step motor driven and controlled by the drive control circuit portion and used for displaying time.

Description

technical field [0001] The present invention relates to a timepiece with an antenna built therein. Background technique [0002] Conventionally, so-called radio-controlled timepieces that receive standard radio waves and set time based on time information included in the received standard radio waves are known (see, for example, Patent Documents 1 and 2). [0003] The radio-controlled timepiece described in Patent Document 1 has: a substantially cylindrical case made of metal parts; glass mounted above the case through a gasket; and a metal part mounted below the case. the back cover; and the movement with radio-controlled timepiece receiver set inside the case. In this radio controlled timepiece, a configuration is adopted in which a recess is provided on the inner peripheral surface of the case and the back cover, and a non-magnetic member having a resistivity of 7.00 μΩ or less is engaged with the recess. [0004] In addition, Patent Document 2 describes a skeleton watc...

Claims

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Application Information

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IPC IPC(8): G04B45/00G04B37/18G04C9/00H01Q1/22
Inventor 小泽范明
Owner SEIKO EPSON CORP
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