Title:
ROTARY STAGE
Document Type and Number:
Japanese Patent JP3643208
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simplify and besides downsize the structure by stopping some rotation with not less than one rotation and not more than two rotations, using a slider and a circular slot, in case that the first member and the second member arranged concentrically rotate relatively one rotation or more.
SOLUTION: The first member is roughly tubular in whole shape and the second member 3 is arranged relatively rotatably, and in the slot 31 made in the second member 3, a slider 32 which has an L-shaped dog 10 is provided slidably. Then, when the second member 3 rotates once in A direction and the slider 32 abuts on a stopper 12, the slider 32 and the dog 10 shift in one direction within the slot 31, and abut on the second limit sensor 41, and the rotation stops, and when it is returned in B direction, the slider 32 is restored into the middle position of the circular slot 31 by the action of a spring 33. Furthermore, when the slider 32 abuts on the stopper 12 after one rotation, it rotates until the dog 10 abuts on the first limit sensor 40 and it stops. As a result, the downsizing of the planar form and the simplification of the constitution become possible.
Inventors:
Iwasaki Tokio
Application Number:
JP7856697A
Publication Date:
April 27, 2005
Filing Date:
March 28, 1997
Export Citation:
Assignee:
Tamagawa Seiki Co., Ltd.
International Classes:
B23Q16/02; B23Q1/00; B23Q1/52; G05D3/00; G05D3/12; H02K7/14; (IPC1-7): H02K7/14; B23Q1/52; B23Q16/02; G05D3/00; G05D3/12
Domestic Patent References:
| JP8317592A | ||||
| JP62045421U | ||||
| JP5177578A | ||||
| JP6320369A |
Attorney, Agent or Firm:
Michiteru Soga
Yoshio Kobayashi
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Masahisa Hase
Tetsuo Kuroiwa
Yoshio Kobayashi
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Masahisa Hase
Tetsuo Kuroiwa