MAGNET HOLDER AND MANUFACTURE THEREOF

PURPOSE:To avoid the ricketiness of a magnet by providing a protruding section on an inner recessed surface or on an inner surface of a stoppage member in a holder body with which a magnet is brought into contact. CONSTITUTION:In the top part of a holder body 12 made from a synthetic resin, two rece...

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Bibliographische Detailangaben
1. Verfasser: KARASAWA SHINTARO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To avoid the ricketiness of a magnet by providing a protruding section on an inner recessed surface or on an inner surface of a stoppage member in a holder body with which a magnet is brought into contact. CONSTITUTION:In the top part of a holder body 12 made from a synthetic resin, two recessed sections 14 each having an opening in the top surface are provided to be point-symmetric. Each recessed section 14 has differences in level 16a, 16b in an inner surface to install a magnet 18. In order to prevent the magnet 18 installed therein from dropping out, a top of the opening of the recessed section 14 is closed by means of a stoppage member 26. The member 26 consists of a top plate section 28, a leg section 30 and protruding sections 32. The thickness of the top plate section 28 is equalized to the depth of the difference in level 16a. The length of the leg section 30 which is perpendicularly protruding from the under part of the top plate section 28 is little shorter than the depth of the difference in level 16b. When the recessed section 14 is closed by means of ultrasonic wave welding, the top surface of the top plate section 28 is flushed with the top surface of the body 12 and the leg section 30 fits to the difference in level 16b. An under edge of the protruding section 32 protruding from the under part of the top plate section 28 is brought into contact with the top surface of the magnet 18. Thereby, it is possible to avoid the ricketiness of the magnet in the recessed section without filling there with a bonding agent.