Timepiece barrel with twisted arbor

A barrel and shaft technology, applied in the driving mechanism of clocks, mechanically driven clocks, clocks, etc., can solve the loss of the big steel wheel, the watchmaker is frightened or even injured, and the big steel wheel or other components are damaged, etc. question

Active Publication Date: 2021-09-10
ETA SA MFG HORLOGERE SUISSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sudden ejection of the steel wheel results in the risk of shocking or even injuring the watchmaker, as well as the risk of damaging said steel wheel or other components, or even losing the steel wheel

Method used

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  • Timepiece barrel with twisted arbor
  • Timepiece barrel with twisted arbor
  • Timepiece barrel with twisted arbor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] as in figure 1 and figure 2 As shown in , the invention relates to a barrel 1 with a twisted barrel 4 .

[0042] The barrel 1 includes a barrel wheel 2 of cylindrical shape. The drum 2 includes an upper face 5 and a lower face 8 in the shape of a disc, and a circular peripheral face 6 . The drum 2 is provided with a housing delimited by an upper face 5 , a lower face 8 and a peripheral face 6 .

[0043] The peripheral surface 6 of the barrel 2 is provided with gear teeth 7 at the junction of the upper face 5 . These teeth 7 allow the transmission of the torque of the mainspring to the rest of the movement, in particular the movement of the actuating hands.

[0044] Barrel 1 includes an arbor 4 passing through the case. The barrel arbor 4 extends around a main longitudinal axis, about which the barrel arbor 4 is rotatable. The arbor 4 is provided with the protruding end 9 of said barrel 2 .

[0045] Barrel 1 includes a spring (not shown in the figures) arranged i...

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PUM

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Abstract

The invention relates to a timepiece barrel with a twisted arbor. A twisted arbour barrel (1), including a barrel drum (2) provided with a housing, a spring arranged in the housing of the barrel drum (2), an arbour (4) at least partially passing through the housing, the spring being compressed by rotation of the arbour in a first direction of rotation (12), the arbour (4) being provided with a protruding end (9) of the drum (2), a ratchet (3) arranged on the drum (2), the ratchet (3) being configured to allow the rotation of the arbour (4) in the first direction of rotation (12), the protruding end (9) passing through the ratchet (3) through an opening (14) cooperating by interlocking with the protruding end (9), the protruding end (9) of the arbour (4) having a twisted shape around its axis.

Description

technical field [0001] The invention relates to a twisting barrel barrel for a mechanical timepiece movement. [0002] The invention also relates to a timepiece movement comprising at least one such twisting barrel barrel. [0003] The invention also relates to a timepiece comprising such a timepiece movement. [0004] The present invention relates to the field of watchmaking, and more particularly to the field of energy storage barrels for powering movements, striking time, or other functions of timepieces. Background technique [0005] In a conventional barrel construction, the drum is mounted axially on one end of the barrel arbor, said end protruding from the barrel wheel. The protruding ends have a square section which complementarily fit by interlocking in a housing of the same section provided in the center of said drum in order to drive the drum. [0006] Thus, the opposite end of the barrel arbor is mounted axially free to rotate relative to the barrel wheel. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B1/16
CPCG04B1/16
Inventor J·克里斯坦L·凯林
Owner ETA SA MFG HORLOGERE SUISSE
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