Vibrator and method for manufacturing the same
AssigneeCitizen Electronics Co., Ltd.
InventorKenshi Aihara
Life of this patent
Estimating the term…
Abstract
A vibrator of the present invention comprises a coreless coil (2), a driver (4) including a magnet (4a) inserted in the coreless coil (2), a yoke (4b) for pinching the coreless coil (2) and facing the magnet (4a), and a top plate (4c), suspensions (6 and 8) for carrying resiliently the driver (4). The driver (4) is reciprocated in an axial direction of the coreless coil (2) by applying an alternate current to the coreless coil (2) to generate vibrations. The vibrator can be miniaturized without increasing a cost and has a good rising of vibrations.
Claims9
A vibrator comprising:
- a coreless coil;
- a driver including a magnet inserted in said coreless coil, a yoke for sandwiching said coreless coil and opposing said magnet and a top plate;
- and
- at least one suspension for carrying resiliently said driver,
- an alternate current being applied to said coreless coil to generate vibrations by reciprocation of said driver in an axial direction of said coreless coil.
A method for manufacturing a vibrator, comprising:
- a process for mounting a coreless coil on a portion corresponding thereto in each of a plurality of bases for a plurality of vibrators arranged on a collective base plate capable of taking out the bases for the vibrators;
- a process for overlapping and mounting a first collective spacer plate capable of taking out a plurality of spacers for the vibrators, on said collective base plate so as to correspond each spacer to each base;
- a process for overlapping and mounting a first collective suspension plate capable of taking out plurality pairs of suspension members for the vibrators, on the first collective spacer plate so as to correspond a pair of suspension members for each vibrator to each spacer;
- a process for overlapping and mounting a collective frame plate capable of taking out a plurality of frames for the vibrators, on the first collective suspension plate so as to correspond each frame to the pair of suspension members;
- a process for containing each of a plurality of drivers each having magnets inserted in each of the corresponding coreless coils, yokes for facing the magnets and pinching the coreless coils, and top plates in each of the frames for the vibrators, respectively, and for supporting each driver on the pair of suspension members in the first collective suspension plate;
- a process for overlapping and mounting a second collective suspension plate capable of taking out plurality pairs of suspension members for the vibrators, on the collective frame plate so as to correspond a pair of suspension members for each vibrator to each frame;
- a process for overlapping and mounting a second collective spacer plate capable of taking out a plurality of spacers for the vibrators, on the second collective suspension plate so as to correspond each spacer to the pair of suspension members for each vibrator;
- a process for overlapping and mounting a collective protector plate capable of taking out a plurality of protectors for the vibrators, on the second collective suspension plate so as to correspond each protector for each vibrator to each spacer;
- and
- a process for cutting the collective base, first collective spacer, first collective suspension, collective frame, second collective suspension, second collective spacer and collective protector plates, which are overlapped and separating into an individual vibrator.
Dependencies are inferred from the claim text.