Manual winding gear train, clock machine core and clock possessing the gear train

A string wheel and clock technology, applied in the field of clocks and watches, can solve the problems of crown hypertrophy, not easy to slip torque retention, unnatural, etc.

Inactive Publication Date: 2012-03-14
SEIKO INSTR INC
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the method proposed in this patent document 2, in particular, instead of specifying the upper limit of the torque within the range of the movement of the timepiece, the function can be initially exhibited only after the crown has been installed. It is therefore also difficult to conduct desir...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manual winding gear train, clock machine core and clock possessing the gear train
  • Manual winding gear train, clock machine core and clock possessing the gear train
  • Manual winding gear train, clock machine core and clock possessing the gear train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0158] A preferred embodiment of the present invention will be described on the basis of preferred embodiments shown in the drawings.

[0159] A hand-wound timepiece 3 of a preferred embodiment of the invention has a movement 2 of a preferred embodiment of the invention having figure 1 sectional illustration of and figure 2 The top view illustrates a hand-wound gear train 1 according to a preferred embodiment of the invention as shown.

[0160] From figure 1 It can be seen from the cross-sectional view of the timepiece 3 that the movement 2 of the timepiece 3 has a base plate 11 at the central part in the thickness direction D, and the winding stem (winding stem) 20 can move in and out in the directions A1 and A2 and can move around the central axis B in the directions B1 and B2. It is supported on the base plate 11 in a rotating manner.

[0161] The stem 20 has a large-diameter flange portion 21 , a large-diameter cylindrical portion 22 , a small-diameter portion 23 , a m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a manual winding gear train, a clock machine core and a clock possessing the gear train capable of making the machine core itself set a winding torque below a specified level. The manual winding gear train of the machine core(2) of the clock(3) comprises a plurality of gears(60,70,41,42) meshed with each other to transmit the rotation of a shaft to a square hole wheel(37), an input side part(60) possessing an input side friction fastening part(67(H1)) and an output side part(70) possessing an output side friction fastening part(72(H2)). The input side part(60) and the output side part(70) are arranged correspondingly to each other at the respective friction parts and are rubbed and fastened with each other at the correspondingly arranged part. The manual winding gear train of the machine core(2) of the clock(3) also comprises an elastic mechanism(80) enabling one friction fastening part(72) to pushing the other friction fastening part(67).

Description

technical field [0001] The present invention relates to a manual winding gear train, a watch movement having the same, and a watch having the same. Background technique [0002] In a hand-wound timepiece among mechanical timepieces, when the mainspring is wound up to full winding, the winding torque increases sharply and a sense of tightness is obtained. However, if a stronger winding force (torque) is applied, related parts may be damaged and winding may not be possible. That is, a manually wound timepiece generally does not have a torque limiting function that specifies an upper limit value of the winding torque, that is, a safety function or a damage prevention function. [0003] On the other hand, in self-winding timepieces, a sliding appendage is provided in the barrel, and the automatic winding of the mainspring is performed until the winding torque reaches a prescribed level predetermined by the appendage, on the contrary, when the When the winding torque exceeds a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G04B3/06G04B3/10
CPCG04B3/06G04B3/10
Inventor 藤枝久森裕一
Owner SEIKO INSTR INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap