Unlock instant, AI-driven research and patent intelligence for your innovation.

Positioning-lever structure and clock pointer with same

A technology for positioning rods and timepieces, which is applied to mechanically driven clocks, spring ratchet mechanisms, and time-indicating mechanical devices, etc., can solve problems such as easy increase in component cost or manufacturing cost, easy loosening, and composite structure error. , to achieve the effect of low overall cost, small friction coefficient and maintaining overall performance

Inactive Publication Date: 2002-12-18
SEIKO INSTR INC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, according to such a composite structure, not only the component cost and manufacturing cost are likely to increase, but also errors in the properties of the composite structure are likely to occur.
[0005] In addition, although there is known a structure in which the beating and limiting portion and the spring portion are integrally formed by a metal material having spring properties, when the beating and limiting portion is thin so as to minimize the weight, there is a problem involving the separation of the beating and limiting portion from the date ring. Mesh between teeth is easy to loosen

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
  • Positioning-lever structure and clock pointer with same
  • Positioning-lever structure and clock pointer with same
  • Positioning-lever structure and clock pointer with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Next, preferred modes for carrying out the present invention will be described with reference to preferred embodiments shown in the drawings.

[0028] According to Table 1 of the timepiece constituting the preferred embodiment of the invention, as from Figure 1 to Figure 4 As seen in , where the case, frame, hands and dial are removed, the teeth on the outer edge of the date ring drive wheel 4 mesh with the teeth on the outer edge of the hour wheel 3 which is fixed to the hour hand and The main plate 2 is rotated around the central axis C1, and the date ring drive wheel 4 is rotated around the axis C2 in the direction D2 for 1 time period during the time period when the hour wheel 3 rotates 2 times around the axis C1 in the direction D1. In addition, reference numeral 5 denotes a minute wheel, and the teeth on the outer edge of the minute wheel 5 mesh with the teeth on the outer edge of the hour wheel 3 and with the center wheel / pinion (not shown) on the outer edge. T...

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

Provided are a light-weight positioning lever structure capable of reducing manufacturing costs and a timepiece using the structure. The jumper structure of the timepiece is integrally molded by a beating and limiting portion made of carbon nanofibers and a spring portion made of carbon nanofibers. The jumping and restricting part of the positioning rod structure is thicker than the spring part, and the jumping and restricting part includes a protruding part having a flat plate shape and an eaves shape.

Description

technical field [0001] The present invention relates to a jumper structure, and more particularly, to a jumper structure suitable for use in a precision instrument having a severe thickness, such as a timepiece. Background technique [0002] It is known to use a stop lever structure in clocks and the like, which rotates the date ring to indicate the date by means of a date feed finger which engages with the teeth of the date ring, and has a spring-loaded engagement with the teeth of the date ring so that The runout and limited portion of the date ring that stops rotation at each pitch of the teeth. [0003] According to the jumper structure, the jump and stop portion is formed thick so that even when the timepiece is hit by a drop or the like, the engagement between the jump and stop portion and the teeth of the date ring is hardly released. When using a thick run-out and restraint portion, the run-out and restraint portion is formed by resin (plastic) in order to minimize ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G04B19/247G04B11/00
CPCG04B11/00G04B11/003
Inventor 渡边守远藤守信
Owner SEIKO INSTR INC