A vibration actuator includes: a movable body including: a disk-shaped magnet; a pair of disk-shaped cores fixed on front and rear surfaces of the disk-shaped magnet and each having an opening at a center thereof; a pair of leaf springs having a substantially circular shape; and a pair of spring stopper weight parts each having one end positioned by joining the opening to be joined with one of the disk-shaped cores and having another end connected to a central part of one of the leaf springs; and a fixing body including an annular coil and configured to support and accommodate therein the movable body such that the disk-shaped magnet, the disk-shaped cores and the spring stopper weight parts are capable of vibrating in an axial direction inside the annular coil.

A vibration actuator includes: a movable body including: a disk-shaped magnet; a pair of disk-shaped cores fixed on front and rear surfaces of the disk-shaped magnet and each having an opening at a center thereof; a pair of leaf springs having a substantially circular shape; and a pair of spring stopper weight parts each having one end positioned by joining the opening to be joined with one of the disk-shaped cores and having another end connected to a central part of one of the leaf springs; and a fixing body including an annular coil and configured to support and accommodate therein the movable body such that the disk-shaped magnet, the disk-shaped cores and the spring stopper weight parts are capable of vibrating in an axial direction inside the annular coil.

A vibrating actuator having two different resonant frequencies is disclosed. The vibrating actuator comprises a first moving part 210 having an arrangement of magnets 320. In one embodiment, the arrangement of magnets 320 comprises at least two magnets. The like poles of the magnets 320 face each other and the arrangement of magnets 320 has two outer poles 328. The vibrating actuator has a second moving part 210 having one or more coils 410. The one or more coils 410 are wound over the arrangement of the magnets 320 such that the first moving part 210 can freely slide into the second moving part 220. A chassis 110 is formed by two parts 170, and each part of the chassis 110 is cut to form a first elastic member 150 and a second elastic member 160.

An optical mechanism is provided, including a base module, an optical element, and a ball element. The base module has a frame, a substrate movably disposed in the frame, and an image sensor disposed on the substrate. The optical element is movably connected to the base module, and light propagates through the optical element to the image sensor to generate a digital image. The ball element is disposed between the frame and the substrate, whereby the image sensor and the substrate are movable relative to the frame along a first axis that is perpendicular to an optical axis of the optical element.

A vibrator includes a frame, a swing unit, and an elastic member. The swing unit is disposed within the frame and holds a magnet. The elastic member connects the swing unit and the frame. The swing unit is movable with respect to the frame while deforming the elastic member. The frame, the swing unit, and the elastic member are integrally molded with each other.

The invention is an electric commutating ratchet tool comprising: a head; a ratchet mechanism with a rotating member and a latch member; the rotating member is capable of rotating, the latch member is capable of displacing and controlling rotation direction of the rotating member; and a commutating device with a commutating member, a magnetic driving member and a magnetic actuating unit; the commutating member is capable of displacing to abut against the latch member; the magnetic actuating unit is opposite to the magnetic driving member, either the magnetic actuating unit or the magnetic driving member is disposed on the commutating member; the magnetic actuating unit is at least one electromagnet; magnetic direction is changed through each of the electromagnets, so that the magnetic driving member is magnetically driven to change a position of the latch member.

An electromagnetic inertial force generator is provided, which includes radially polarized permanent magnets providing bias flux across axial gaps to combine with axial coil flux to linearize flux output. An array of components is integrated into a single structure that is more compact and lighter than a monolithic force generator, providing the same level of performance while using less permanent magnet material.

An electromagnetic inertial force generator is provided, which includes radially polarized permanent magnets providing bias flux across axial gaps to combine with axial coil flux to linearize flux output. An array of components is integrated into a single structure that is more compact and lighter than a monolithic force generator, providing the same level of performance while using less permanent magnet material.

A vibration actuator has a movable body and a fixing body. The movable body includes: a disk-shaped magnet; annular cores each having an opening at a center thereof; and spring stopper weight parts, and stacked such that the magnet is disposed at a center of the movable body, the annular cores is fixed on front and rear surfaces of the magnet in its axial direction, and the spring stopper weight parts are joined with the annular cores at the opening. Each spring stopper weight part includes: a spring fixing part connecting to one of the elastic support parts; a joining protrusion part inserted into the opening of one of the annular cores; and a weight body part provided between the spring fixing part and the joining protrusion part, having a larger diameter, and disposed to face and join with an annular surface of one of the annular cores.

A vibration actuator has a movable body and a fixing body. The movable body includes: a disk-shaped magnet; annular cores each having an opening at a center thereof; and spring stopper weight parts, and stacked such that the magnet is disposed at a center of the movable body, the annular cores is fixed on front and rear surfaces of the magnet in its axial direction, and the spring stopper weight parts are joined with the annular cores at the opening. Each spring stopper weight part includes: a spring fixing part connecting to one of the elastic support parts; a joining protrusion part inserted into the opening of one of the annular cores; and a weight body part provided between the spring fixing part and the joining protrusion part, having a larger diameter, and disposed to face and join with an annular surface of one of the annular cores.