A device for mixing liquids and solids in liquids using vibration includes an electromagnetic drive, a drive shaft arranged coaxially with the electromagnetic drive, with drive shaft having a mixing member and either a permanent magnet or a magnetisable element excited by the electromagnetic drive to cause vibration for transmission to the mixing member, and a system of flat spring elements including a first spring element arranged parallel to the drive shaft and a second spring element arranged perpendicularly to the drive shaft and connected to the permanent magnet or the magnetisable element.

Typically, the displacement of piezo-electric actuators is quite small. Accordingly, some sort of amplification may be needed for specific applications to amplify the displacement of the piezo-electric actuator, and thereby amplify the haptic feedback. For all solutions, the goal is to amplify the displacement of a moveable mass in order to increase vibration to improve the haptic feedback. If the host device is a wearable or portable device, e.g. a smart watch, it would be preferable to excite a heavy moveable mass that is already part of the assembly to harvest enough energy to transmit to the interface with the user. If the device is a large display, e.g. a display in a vehicle info system, the display itself could be the moveable mass.

Typically, the displacement of piezo-electric actuators is quite small. Accordingly, some sort of amplification may be needed for specific applications to amplify the displacement of the piezo-electric actuator, and thereby amplify the haptic feedback. For all solutions, the goal is to amplify the displacement of a moveable mass in order to increase vibration to improve the haptic feedback. If the host device is a wearable or portable device, e.g. a smart watch, it would be preferable to excite a heavy moveable mass that is already part of the assembly to harvest enough energy to transmit to the interface with the user. If the device is a large display, e.g. a display in a vehicle info system, the display itself could be the moveable mass.

An oscillatory actuator includes a first damper 51 and a second damper 251 attached to a case 1 and including spiral arms, and first elastic member 150 and second elastic member 350 bridging adjacent arms of the first damper 51 and the second damper 251.

An actuator may include a supporting body; a movable body; a first magnetic drive circuit; a second magnetic drive circuit. The first magnetic drive circuit may include a first coil and a first magnet. The second magnetic drive circuit may include a second coil and a second magnet. The actuator may further include a first yoke on a side of the first coil remote from the second coil; a second yoke on a side of the second coil remote from the first coil; and a third yoke between the first coil and the second coil. The first magnet may be held on a face of the first yoke or a face of the third yoke. The second magnet may be held on a face of the second yoke or a face of the third yoke. The third yoke may be thicker than the first and second yoke.

An actuator may include a supporting body; a movable body; a first magnetic drive circuit including a first coil and a first magnet disposed adjacent to each other in a first direction and driving the movable body in a second direction orthogonal to the first direction; and a second magnetic drive circuit including a second coil and a second magnet disposed adjacent to each other in the first direction and driving the movable body in a third direction orthogonal to the first direction and intersecting the second direction. The second coil and the second magnet may be disposed in alignment with the first magnetic drive circuit in the first direction. The supporting body may include a restraining member. A first elastic member may be in contact with both the movable body and the restraining member. A second elastic may be in contact with both the movable body the restraining member.

The invention relates to a device for producing sound and vibration (10) for a user to hear and feel via surface contact, which comprises a damper mass plate (15) and an inertial actuator (16) attached thereto, which inertial actuator (16) comprises a damper mass (14), which is via a primary suspension (11) supported in a springing manner on the inertial actuator (16) to be moving substantially in one linear direction, which inertial actuator comprises a power source for the damper mass (14). The device (10) comprises a secondary suspension (12) and a mechanical limiter (13) for improving the performance of the inertial actuator and/or protecting it from external disturbances.

A suspension aligning machine includes a bottom board, an intermediate board, a top board, actuation modules, a jig, and a control device. The intermediate board is mounted on a top of the bottom board by first supporting elements and has through holes. The top board is arranged above the intermediate board with supporting elements provided therebetween to have the top board floating and suspending above the intermediate board. The actuation modules are mounted under the top board and respectively extend through the through holes of the intermediate board and form a gap with respect to the bottom board. The operation of the actuation modules causes the top board to vibrate and incline and workpieces deposited in the jig mounted on the top board are caused to move in the jig and fall into the cavities of the jig to line up with each other and thus orderly arranged.

A vibration generation device is provided with a housing, a vibration target component provided to be movable relatively to the housing, an actuator which has a metal base portion, a metal movable portion, a beltlike shape memory alloy disposed between the base portion and the movable portion and in which, when the shape memory alloy receives current application to be changed so that the outer shape becomes small, the movable portion is pushed out in one direction of separating from the base portion in a state where the base portion abuts on a first wall surface of the housing, a resin holder component fixed to the vibration target component and abutting on a pushing surface facing the one direction of the movable portion, and an elastic member elastically energizing the movable portion in a direction opposite to the one direction.

A vibration generation device is provided with a housing, a vibration target component provided to be movable relatively to the housing, an actuator which has a metal base portion, a metal movable portion, a beltlike shape memory alloy disposed between the base portion and the movable portion and in which, when the shape memory alloy receives current application to be changed so that the outer shape becomes small, the movable portion is pushed out in one direction of separating from the base portion in a state where the base portion abuts on a first wall surface of the housing, a resin holder component fixed to the vibration target component and abutting on a pushing surface facing the one direction of the movable portion, and an elastic member elastically energizing the movable portion in a direction opposite to the one direction.