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clasp for watch chain or strap

A clasp and watch chain technology, applied in the field of clasps, can solve problems such as large manufacturing tolerances, low locking strength, and increased cost and price of clasps, so as to achieve the effect of saving cost and reducing the limitation of manufacturing tolerances

Active Publication Date: 2016-09-28
OMEGA SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the locking strength between the toothed element and the rack is relatively low, so that the position of the end link can be easily re-indexed, for example by pulling or pushing the end link, which is unacceptable
Furthermore, it is easy to understand that the smaller the teeth of the rack, the greater the manufacturing tolerances will be, which increases the cost price of this type of clasp

Method used

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  • clasp for watch chain or strap
  • clasp for watch chain or strap
  • clasp for watch chain or strap

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The invention stems from the general inventive concept of using a spring as elastic means controlling the decoupling between the toothed element of the fine adjustment link of the bracelet or of the clasp and the toothed rack. The spring provides a longer stroke for the push button associated therewith so that the toothed element controlled by the push button goes from its first position (in which the toothed element engages the rack) to its second position The movement (in this second position of the toothed element out of its engagement with the rack) is also greater. The teeth of the rack can thus be taller with deeper hollows between the teeth, which ensures an improved locking of the toothed element and allows reducing manufacturing tolerances of the teeth of the rack.

[0017] The invention will be described below with reference to a watch chain. It goes without saying, however, that this example is given only by way of non-limitative illustration, that the clasp...

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PUM

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Abstract

The invention relates to a clasp for a watch chain comprising a cover (2) connected on a first side to a first watch chain strap (4) and on a second side to a second watch chain strap (8) , the connecting device is inserted between the second bracelet strap (8) and the cover (2) of the clasp (1), the connecting device comprises a sliding movement along the longitudinal direction of the clasp (1) between a first position and a second position In the first position, the end link (10) is at least partially engaged in the cover (2) of the clasp (1), in the second position, the end chain The link (10) is disengaged from the cover (2) of the clasp (1), and the end link (10) includes a button (32) which, when pressed, causes the toothed element (34) to disengage from the toothed element ( 34) Change from the first position engaged with the rack (14) integral with the cover (2) of the clasp (1) to the second position where the toothed element (34) disengages it from engagement with the rack (14), and the buckle The hook is characterized in that the end link (10) comprises a seat (28) inside which is arranged at least one spring (30) covered by a button (32).

Description

technical field [0001] This invention relates to clasps for watch chains or straps. More specifically, the invention relates to clasps for watch chains or straps comprising means for fine adjustment of the length of the watch chain or strap. Background technique [0002] Clasps comprising means for fine adjustment of the length of the bracelet are known in the prior art. A clasp enabling fine adjustment of the length of the bracelet is one that allows the length of the bracelet to be adjusted over shorter lengths for the best possible fit to optimize the comfort of the person wearing the watch. These clasps generally include end links via which one of the bracelet straps is connected to the clasp cover. the end link is slidable in the longitudinal direction of the clasp between a first "inner" position, in which it is seated in said clasp cover, and a second "outer" position, In the second "outer" position, the end link is released from the clasp. Thus, the available len...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A44C5/24
CPCA41F9/025A44C5/246Y10T24/2155A44B17/0017A44C5/24
Inventor C·卡坦莱德尔R·卡塔内塞
Owner OMEGA SA