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Micromechanical clockwork part

A micro-machine and component technology, applied in the field of micro-mechanical clock components, can solve problems such as reducing the execution speed of the etching process

Active Publication Date: 2020-09-18
PATEK PHILIPPE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this comes at the expense of significantly slowing down the execution speed of the etch process

Method used

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  • Micromechanical clockwork part
  • Micromechanical clockwork part
  • Micromechanical clockwork part

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] The invention will be described below in the context of a Swiss lever escapement. It should be understood, however, that the invention is not limited to this restricted field of application, but rather relates to all micromechanical timepieces in which two elements slide against each other and thus rub against each other.

[0029] figure 1 is a schematic plan view showing a prior art Swiss lever escapement. In particular, the shown mechanism comprises escape wheel 3 , pallet fork 5 and large plate 7 through the center of which the axis of balance wheel 9 passes. The two arms of the pallet fork end with fork tiles 11, 13 respectively. The pallets are arranged to cooperate with the teeth 15 of the escape wheel 3 . The escape wheel is connected to a barrel (not shown) by a running train (not shown) meshing with an escape pinion (ref. 17). Therefore, the escape wheel is kept moving forward (in other words, along the figure 1 clockwise as shown) push. It should be note...

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PUM

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Abstract

A micromechanical clockwork part (1) is cut from a plate-like silicon substrate. The cut edges of the part comprise portions intended to serve as contact surfaces arranged to slide against corresponding contact zones of another micromechanical part in a clockwork piece. The cut edges have a ribbed surface comprising an alternating set of ribs (21a) and furrows (23a), the ribs and the furrows beingstraight and each contained in a plane parallel to the plate. Moreover, the ribs and furrows which the cut edges have form a stepped pattern on the cut edge, with first intervals (25a) in which the spacing separating the ribs from one another is equal to a first distance, and at least one second interval (27a) in which the spacing between the ribs is equal to a second distance different from thefirst distance.

Description

technical field [0001] In a first aspect, the invention relates to a micromechanical component cut out in a plate-shaped silicon substrate, and the cut edge of the micromechanical timepiece component comprises a portion arranged to serve as a contact surface, the contact surface Arranged to slide against a corresponding contact area of ​​another micromechanical component in the timepiece, the cut edge of the component has a ribbed surface comprising alternating ribs and grooves, the ribs and the grooves being straight. This first aspect of the invention relates in particular to a micromechanical timepiece component complying with the above definition and being part of a lever escapement. [0002] In a second aspect, the invention relates to a method of manufacturing a micromechanical timepiece component according to the first aspect of the invention, the method comprising the steps of: [0003] Obtain a plate-shaped silicon substrate; [0004] depositing and structuring a vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04D3/00G04B15/14
CPCG04D3/0087G04B15/14G04B31/08G04B15/08G04D3/0069
Inventor 朱利安·佩雷特勒米·佛恩尼尔西尔万·吉恩内勒特
Owner PATEK PHILIPPE SA