Claims
- 1. A linear driving apparatus comprising:
- first and second linear motors, each of which includes,
- a stator having a plurality of permanent magnets, and
- a movable member having polyphase windings and being freely movable through a gap on a top face of said stator;
- a coupling member for mutually coupling said movable members of said first and second linear motors and being driven by said movable members through a polyphase excitation of said polyphase windings of said first and second linear motors; and
- connecting means for connecting electrically the polyphase windings having a first phase of said movable member of said first linear motor with the polyphase windings having said first phase of said movable member of said second linear motor in series or in parallel, and the polyphase windings having said second phase of said movable member of said first linear motor with the polyphase windings having said second phase of said movable member of said second linear motor in series or in parallel.
- 2. A linear driving apparatus comprising:
- first and second linear motors, each of which includes,
- a stator having a plurality of permanent magnets, and
- a movable member having polyphase winding coils and being freely movable through a gap on a top face of said stator;
- a coupling member for mutually coupling said movable members of said first and second linear motors and being driven by said movable members through a polyphase excitation of said polyphase winding coils of said first and second linear motors;
- first connecting means for connecting electrically the polyphase winding coils having a first phase of said movable member of said first linear motor with the polyphase winding coils having said first phase of said movable member of said second linear motor in series or in parallel, the polyphase winding coils having a second phase of said movable member of said first linear motor with the polyphase winding coils having said second phase of said movable member of said second linear motor in series or in parallel, and the polyphase winding coils having a third phase of said movable member of said first linear motor with the polyphase winding coils having said third phase of said movable member of said second linear motor in series or in parallel; and
- second connecting means for connecting said polyphase winding coils having said first phase, second phase and third phase of said movable members of said first and second linear motors are connected to form a ring as the whole.
- 3. A linear driving apparatus comprising:
- first and second linear motors, each of which includes,
- a stator having a plurality of permanent magnets and being disposed vertically in said first and second linear motors, and
- a movable member having polyphase windings and being freely movable through a gap on a top face of said stator;
- a coupling member for mutually coupling said movable members of said first and second linear motors and being driven by said movable members through a polyphase excitation of said polyphase windings of said first and second linear motors, said movable members being respectively disposed on both end portions in the longitudinal direction of said coupling member; and
- a guide member for axially supporting said coupling member or said movable member, so that said movable members are driven through said polyphase excitation of said polyphase windings of said first and second linear motors.
- 4. The linear driving apparatus according to claim 1, wherein said polyphase windings comprise a plurality of air-core coils.
- 5. The linear driving apparatus according to claim 1, further comprising a photo detector disposed on said movable member.
- 6. The linear driving apparatus according to claim 2, wherein said polyphase winding coils comprise a plurality of air-core coils.
- 7. The linear driving apparatus according to claim 2, further comprising a photo detector disposed on said movable member.
- 8. The linear driving apparatus according to claim 3, wherein said polyphase windings comprise a plurality of air-core coils.
- 9. The linear driving apparatus according to claim 3, further comprising a photo detector disposed on said movable member.
Priority Claims (3)
Number |
Date |
Country |
Kind |
63-129982 |
May 1988 |
JPX |
|
63-217276 |
Aug 1988 |
JPX |
|
63-304357 |
Nov 1988 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 07/356.173 filed on May 24, 1989 now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (4)
Number |
Date |
Country |
2510838 |
Feb 1983 |
FRX |
56-87065 |
Jul 1981 |
JPX |
58-93461 |
Aug 1983 |
JPX |
60-136731 |
Jul 1985 |
JPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
7356173 |
May 1989 |
|