G04B21/08

METHOD OF HARMONIC TUNING OF AT LEAST ONE GONG OF A WATCH STRIKING MECHANISM

A method for tuning a gong of a striking watch. The gong is fastened at one end to a gong holder, which can be mounted in a watch case. The gong is struck by a hammer to be vibrated on a support of the measuring instrument to determine by a fast Fourier transform frequency peaks in a band of audible frequencies. A comparison in a first natural mode of a vibration frequency in the plane XY with a vibration frequency outside the plane Z is performed and a ratio calculation r=|f1p−f1h|/f1p, where f1p is the vibration frequency in the plane XY, and f1h is the vibration frequency outside the plane Z. If the ratio r is less than or equal to a desired value of 0.006, the gong is tuned. If it is greater, the method is repeated until the ratio value is achieved.

METHOD OF HARMONIC TUNING OF AT LEAST ONE GONG OF A WATCH STRIKING MECHANISM

A method for tuning a gong of a striking watch. The gong is fastened at one end to a gong holder, which can be mounted in a watch case. The gong is struck by a hammer to be vibrated on a support of the measuring instrument to determine by a fast Fourier transform frequency peaks in a band of audible frequencies. A comparison in a first natural mode of a vibration frequency in the plane XY with a vibration frequency outside the plane Z is performed and a ratio calculation r=|f1p−f1h|/f1p, where f1p is the vibration frequency in the plane XY, and f1h is the vibration frequency outside the plane Z. If the ratio r is less than or equal to a desired value of 0.006, the gong is tuned. If it is greater, the method is repeated until the ratio value is achieved.

Acoustic radiation membrane, and striking watch equipped with the acoustic membrane

The striking or musical watch includes a watch case having a case middle and a back attached to the case middle in a sealed manner and in a detachable manner, a glass closing the case in a sealed manner, a watch movement or a watch electronic module retained in the interior of the watch case and equipped with a sonic vibration generator to be activated during specific periods in order to produce a sound or music. The watch includes at least one acoustic radiation membrane made at least in part of wood or a wood composite material and attached to a part of the case in order to radiate the sound produced by the sonic vibration generator towards the exterior of the case.

Acoustic radiation membrane, and striking watch equipped with the acoustic membrane

The striking or musical watch includes a watch case having a case middle and a back attached to the case middle in a sealed manner and in a detachable manner, a glass closing the case in a sealed manner, a watch movement or a watch electronic module retained in the interior of the watch case and equipped with a sonic vibration generator to be activated during specific periods in order to produce a sound or music. The watch includes at least one acoustic radiation membrane made at least in part of wood or a wood composite material and attached to a part of the case in order to radiate the sound produced by the sonic vibration generator towards the exterior of the case.

Striking or musical watch with an acoustic waveguide arrangement
11320788 · 2022-05-03 · ·

A striking or musical watch with an acoustic waveguide arrangement. The striking or musical watch (1) includes an at least partially flexible waveguide (2) secured to a fixed part (8) inside the watch to guide the acoustic waves generated by a first portion (2′) of the at least partially flexible waveguide towards a radiating element. The radiating element can include a watch crystal (3) connected to a bezel (5) and a membrane (4) for connecting the bezel to a middle part (6) of a watch case. The flexible waveguide is configured to change the direction of acoustic vibration from the first portion to the radiating element.

Striking or musical watch with an acoustic waveguide arrangement
11320788 · 2022-05-03 · ·

A striking or musical watch with an acoustic waveguide arrangement. The striking or musical watch (1) includes an at least partially flexible waveguide (2) secured to a fixed part (8) inside the watch to guide the acoustic waves generated by a first portion (2′) of the at least partially flexible waveguide towards a radiating element. The radiating element can include a watch crystal (3) connected to a bezel (5) and a membrane (4) for connecting the bezel to a middle part (6) of a watch case. The flexible waveguide is configured to change the direction of acoustic vibration from the first portion to the radiating element.

Resonant member for a striking mechanism of a watch or of a music box
11774910 · 2023-10-03 · ·

A resonant member for a striking mechanism of a watch or of a music box includes at least one resonant part, such as one or more gongs, arranged to vibrate and resonate once activated, and an attachment part. The resonant part and/or the attachment part is made from an alloy of palladium or platinum with more than 51% of palladium or platinum in the alloy.

Resonant member for a striking mechanism of a watch or of a music box
11774910 · 2023-10-03 · ·

A resonant member for a striking mechanism of a watch or of a music box includes at least one resonant part, such as one or more gongs, arranged to vibrate and resonate once activated, and an attachment part. The resonant part and/or the attachment part is made from an alloy of palladium or platinum with more than 51% of palladium or platinum in the alloy.

Suspended-hammer timepiece striking mechanism
11754976 · 2023-09-12 · ·

Timepiece striking mechanism, including a fixed structure supporting at least one gong or radiant element and a mobile hammer in a plane under the action of an activation mobile component controlling the pallet of the hammer (3) and the release thereof for the percussion of the gong, and including, for the suspension of the hammer, at least one planar flexible guide between the structure and the hammer (3) to allow movements of the hammer solely on the plane, forming the sole mechanical link between the structure and the hammer, and, more particularly, for the execution of a striking mechanism, the striking mechanism (drives the activation mobile component, and has same carry out a winding cycle during which it supplies constant quantity of energy to the flexible guide while driving the hammer before releasing same for the execution of the striking mechanism by percussion of the gong during letting down.

Suspended-hammer timepiece striking mechanism
11754976 · 2023-09-12 · ·

Timepiece striking mechanism, including a fixed structure supporting at least one gong or radiant element and a mobile hammer in a plane under the action of an activation mobile component controlling the pallet of the hammer (3) and the release thereof for the percussion of the gong, and including, for the suspension of the hammer, at least one planar flexible guide between the structure and the hammer (3) to allow movements of the hammer solely on the plane, forming the sole mechanical link between the structure and the hammer, and, more particularly, for the execution of a striking mechanism, the striking mechanism (drives the activation mobile component, and has same carry out a winding cycle during which it supplies constant quantity of energy to the flexible guide while driving the hammer before releasing same for the execution of the striking mechanism by percussion of the gong during letting down.