Abstract:
An oscillator spring material comprising a mixture of a host material with an additive in proportions which permit the thermal evolution of the material's elastic modulus to be tuned, e.g. to correct or compensate for other thermal changes in an oscillator system. The additive comprises a crystalline material having an abnormal thermal evolution of elastic modulus. The host material has a normal thermal evolution of elastic modulus. The additive is mixed with the host material before the host material undergoes a phase transformation into its final form. The additive has a phase transformation temperature higher than the host material, so that additive remains in the same state while the host material phase transformation takes place.
Abstract:
L'invention se rapporte à un spiral (51'") comportant un ressort-spiral (53'") monté coaxialement sur une virole (55'"), lesquels sont réalisés dans une même couche (21) de matériau à base de silicium. Selon l'invention, la virole (55'") comporte une partie (19) en prolongement faisant saillie dudit ressort-spiral (53'") qui est réalisée dans une deuxième couche (5) de matériau à base de silicium afin de pouvoir adapter l'espacement dudit spiral (51'") avec un autre élément. L'invention se rapporte également à une pièce d'horlogerie comportant un tel spiral et au procédé de fabrication associé. L'invention concerne le domaine des mouvements horlogers.
Abstract:
The elastodynamic energy accumulator-regulator comprises a sheet (1) that is wound or capable of being wound in radioida spiral form with increasing or decreasing curvature along the length of the spiral, capabie of absorbing energy at variable torque and supply a practically constant torque in broad working areas The laminate or set of sheets that are wound or capable of being wound about themselves as a spring has variable thickness and/or width and/or reinforcement along its length, and is held at both ends. The laminate or set of sheets is made of composite materials with polymer matrix and fiber reinforcement This elastodynamic energy accumulator-regulator has application as an energy accumulator or regulator in many applications such as wind energy production and other renewable energies, applications in transport, applications in uninterruptible power supply systems, applications in electric network regulation, etc.
Abstract:
The invention concerns a spiral spring made from a photostructurable glass plate by UV irradiation, heat treatment and chemical etching, said glass having a thermal coefficient of Young modulus CTE 0 . By UV irradiation through one or more masks, optionally completed by a heat treatment, selected zones of the spiral spring have a CTE 0 modified into a CTE i value.
Abstract translation:本发明涉及一种通过UV照射,热处理和化学蚀刻由可光结构玻璃板制成的螺旋弹簧,所述玻璃具有杨氏模量CTE 0 SUB>的热系数。 通过一个或多个掩模的UV照射(任选地通过热处理完成),螺旋弹簧的选定区域具有被修改为CTE i SUB>值的CTE 0 SUB>。
Abstract:
A spring (50) for linear compressors has a pair of first mounting points (54) for securing to a first body. The spring (50) has at least one second mounting point (52) for securing to a second body which is reciprocable relative to the first body. A spring arm (52) spans between each of the first mounting points (54) by way of the second mounting point (52). In the preferred embodiment the sections of spring arm (53) extending between the first mounting points (54) and the second mounting point (52) include lengths which are of substantially constant radius of curvature. The spring (50) is to be constructed from a length of high fatigue strength wire bent into the required shape reducing the number of operations required in its manufacture.
Abstract:
A coil spring of strip material is of non-uniform width. There may be a progressive taper from one end to the other, or there may be steps between portions (1, 2) of uniform width, each portion having a constant force characteristic. Other configurations are possible. For application to an injection device in which a capsule is spring-driven for its needle to project, and in which a piston in the capsule is then spring-driven to eject a dose, the spring has a wide portion (1) wound innermost which urges the capsule forwards, and a narrow portion (2) which then takes over to eject the dose.