Invention Grant
- Patent Title: Linear motor and machine tool having the same mounted thereon
- Patent Title (中): 具有安装在其上的线性电机和机床
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Application No.: US11842488Application Date: 2007-08-21
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Publication No.: US07642678B2Publication Date: 2010-01-05
- Inventor: Takuya Okada
- Applicant: Takuya Okada
- Applicant Address: JP Kyoto-shi
- Assignee: Murata Kikai Kabushiki Kaisha
- Current Assignee: Murata Kikai Kabushiki Kaisha
- Current Assignee Address: JP Kyoto-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2006-223786 20060821
- Main IPC: H02K41/02
- IPC: H02K41/02

Abstract:
The present invention provides a linear motor 1 which uses a plurality of cylindrical linear motors 2 to increase power and which can guide forward and backward movements using a simple configuration, the linear motor 1 requiring reduced manufacturing costs. A plurality of cylindrical linear motors 2 are provided each of which has a shaft member 3 made of a permanent magnet and a coil unit 4. A motor support 25 is provided which is able to support the coil units of the plurality of cylindrical linear motors 2 arranged in parallel. The shaft members of the plurality of cylindrical linear motors 2 are coupled together at ends thereof by coupling members 10, 11. A guide mechanism 32 is located inside the arrangement of the cylindrical linear motors 2 to guide movement of the shaft members 3 of the cylindrical linear motors 2. The number of guide mechanisms 32 is smaller than that of the cylindrical linear motors 2. For example, the single guide mechanism 32 is provided.
Public/Granted literature
- US20080042495A1 LINEAR MOTOR AND MACHINE TOOL HAVING THE SAME MOUNTED THEREON Public/Granted day:2008-02-21
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