MECHANICAL PARTS
(19)AUSTRALIAN PATENT OFFICE (54) Title Mechanical parts (51)6 International Patent Classification(s) G04B 015/14 G04B 031/02 G04B 017/06 G04B 001/14 G04B 019/12 (21) Application No: 2003205503 (22) Application Date: 2003 .03.04 (87) WIPO No: WO04/029733 (30) Priority Data (31) Number (32) Date (33) Country 1858/02 2002.11.06CH1617/02 2002 .09 .25 CH (43) Publication Date : 2004.04.19 (43) Publication Journal Date : 2004 .05.20 (71) Applicant(s) FORE EAGLE CO LTD (72) Inventor(s) Gygax, Pierre (-1-1) Application NoAU2003205503 A8(19)AUSTRALIAN PATENT OFFICE (54) Title Mechanical parts (51)6 International Patent Classification(s) G04B 015/14 G04B 031/02 G04B 017/06 G04B 001/14 G04B 019/12 (21) Application No: 2003205503 (22) Application Date: 2003 .03.04 (87) WIPO No: WO04/029733 (30) Priority Data (31) Number (32) Date (33) Country 1858/02 2002.11.06CH1617/02 2002 .09 .25 CH (43) Publication Date : 2004.04.19 (43) Publication Journal Date : 2004 .05.20 (71) Applicant(s) FORE EAGLE CO LTD (72) Inventor(s) Gygax, Pierre -1- The use of diamond as raw material for producing mechanical parts offers many advantages: the low friction factor of said material makes it usable for friction parts as well as the impact strength thereof makes it appropriately usable for certain parts. The mechanical strength of the material makes it possible to reduce the sizes of the mechanical parts and even to cut out holes therein. The high value of the coefficient of elasticity makes it possible to produce the parts exposed to elastic stress such as spiral springs. A spiral spring (4), designed to form part of a clock movement and to be set in motion by said clock movement, characterised in that said spiral spring (4) is made entirely from diamond. The spiral spring (4) according to claim 1, characterised in that it is made from a diamond plate. The spiral spring (4) according to claim 2, characterised in that it is made by etching a diamond plate. The spiral spring (4) according to any of the foregoing claims, characterised in that the diamond used for its manufacture is synthetic diamond. The spiral spring (4) according to any of the foregoing claims, characterised in that the spires (41) of the spring are made in a single piece with at least one end fixing flange (40, 42). The spiral spring (4) according to any of the foregoing claims, characterised in that the cross-section of the spires (41) varies over the length of said spiral spring. Clock component, comprising at least one spiral spring (4) according to any of claims 1 to 6.