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Crown lock mechanism-installed timepiece

A locking mechanism and crown technology, which is applied to mechanically driven clocks, clocks, spring ratchet mechanisms, etc., to achieve the effect of easy operation

Active Publication Date: 2018-09-25
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to screw the crown and the threaded part of the stem tube while applying a large pressing force to the crown. From this point of view, there is room for improvement in operability.

Method used

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  • Crown lock mechanism-installed timepiece
  • Crown lock mechanism-installed timepiece
  • Crown lock mechanism-installed timepiece

Examples

Experimental program
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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0035] First, a timepiece with a crown lock mechanism according to an embodiment will be described.

[0036] In general, the mechanical body including the driving part of the watch is called the "movement". The completed state of attaching the dial and hands to the movement and placing it in the watch case (main body) is called the "complete machine" of the watch.

[0037] figure 1 It is an external perspective view showing the timepiece of the embodiment. figure 2 It is an exploded perspective view showing the timepiece of the embodiment. Hereinafter, the timepiece 1 with the crown lock mechanism will be simply referred to as "the timepiece 1".

[0038] like figure 1 , figure 2 As shown, the complete machine of the clock 1 has a movement 10 , a middle frame 11 , a dial 12 , an hour hand 13 and a minute hand 14 inside the clock case 4 made of the case back cover...

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Abstract

There is provided a crown lock mechanism-installed timepiece which enables a lock mechanism to regulate an operation of a crown by using simple operation. A crown lock mechanism (20) includes a winding stem (24), a crown (25), a lock screw connection element (32), an extrusion spring (33), and a regulator (48). The winding stem is connected to a corrector lever of a movement. The crown is fixed tothe winding stem. The crown is capable of engaging with the lock screw connection element, and the crown is supported by the lock screw connection element so as to be movable in an axial direction. The extrusion spring biases the lock screw connection element toward the crown. The regulator regulates the lock screw connection element to be located at a predetermined position against a biasing force of the extrusion spring, and holds the crown engaging with the lock screw connection element so as to stay at a normal hand operation position.

Description

technical field [0001] The invention relates to a timepiece with a crown locking mechanism. Background technique [0002] Among the timepieces, there is known a timepiece having the following parts: a crown tube, which is connected to the stem in a movable manner in the axial direction; a crown, which is attached to the crown tube; and an elastic member, which is interposed between the stem and the stem. between crowns. Since the force of the elastic member acts on the stem and the crown, loosening of the crown is suppressed. [0003] When the timepiece is switched to the time correction mode, the crown whose screw connection (engagement) with the threaded portion of the stem tube is released is pulled out to the time correction position. On the other hand, when the crown is to be kept in the normal movement mode, the crown is pushed in, and the stem is switched to the normal movement mode by the force of the elastic member. [0004] Furthermore, a so-called lock mechanis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B37/04
CPCG04B3/043G04B37/04G04B3/046G04B3/041
Inventor 井口胜信
Owner SEIKO INSTR INC
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