Self-leveling laser apparatus and a method for controlling the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01C-005/00
G01C-015/00
출원번호
US-0804242
(2007-05-17)
등록번호
US-7493701
(2009-02-24)
우선권정보
CN-2006 1 0040690(2006-05-26)
발명자
/ 주소
Chen,Ming
출원인 / 주소
Chevron Limited
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
3인용 특허 :
140
초록▼
The present invention discloses a self-leveling laser apparatus, of which the pendulum can be locked, and a method for controlling the same. The self-leveling laser apparatus of the present invention comprises a housing, a pendulum hanging within the housing, at least one laser generator fixed on th
The present invention discloses a self-leveling laser apparatus, of which the pendulum can be locked, and a method for controlling the same. The self-leveling laser apparatus of the present invention comprises a housing, a pendulum hanging within the housing, at least one laser generator fixed on the pendulum, a power source electrically connected with the laser generator, and a locking device for fixing the pendulum. The locking device includes a motor, and a locking member which is activated by the motor and movable between a fixed position and a released position. The locking member has a locking surface, and the pendulum has a contacting surface. When the locking member is in the fixed position, the locking surface thereof contacts the contacting surface of the pendulum. When the locking member is in the released position, the locking surface thereof does not contact the contacting surface of the pendulum. The pendulum is fixed from swinging when the self-leveling laser apparatus is not in use so as to avoid unexpected damage or loss of precision.
대표청구항▼
What is claimed is: 1. A self-leveling laser apparatus, comprising: a housing, a pendulum hanging within the housing, at least one laser generator fixed on the pendulum, a power source electrically connecting with the laser generator, and a locking device for fixing the pendulum, wherein the lockin
What is claimed is: 1. A self-leveling laser apparatus, comprising: a housing, a pendulum hanging within the housing, at least one laser generator fixed on the pendulum, a power source electrically connecting with the laser generator, and a locking device for fixing the pendulum, wherein the locking device comprising a motor and a locking member which is activated by the motor and movable between a fixed position and a released position wherein the locking member having a locking surface, and the pendulum having a contacting surface, when the locking member is in the fixed position, the locking surface thereof contacts the contacting surface of the pendulum, when the locking member is in the released position, the locking surface thereof does not contact the contacting surface of the pendulum, wherein the self-leveling laser apparatus further comprises a signal generator which is electrically connected with the motor and being operable to generate a locking signal and a releasing signal, and wherein the housing having a bottom surface for positioning the laser apparatus on a first surface, the signal generator comprising a light emitting member for projecting a detecting light on the first surface, and a detecting member for detecting the reflected detecting light from the first surface, and generating a corresponding electrical signal subsequently. 2. A self-leveling laser apparatus of claim 1, wherein the signal generator further comprising a control circuit which responses the electrical signal generated from the light detecting member and outputs the releasing signal to the motor. 3. A self-leveling laser apparatus of claim 1, wherein the bottom surface has a hole through which the detecting light generated from the light emitting member and reflected from the first surface passing. 4. A method for controlling a self-leveling laser apparatus as defined in claim 1, comprising the steps of: supplying power from the power source to the motor; providing a signal generator which produces a first signal to the motor when a distance between at least a portion of the housing and a first surface is within a predetermined range; the motor rotating in a first direction after the motor received the first signal, whereby the locking surface of the locking member moves away from the contacting surface of the pendulum. 5. A control method according to claim 4, wherein the at least one laser generator comprising a laser diode and a collimation lens, wherein the self-leveling laser apparatus further comprising an optical unit for transforming a laser beam generated from the laser generator into a planer laser. 6. A control method according to claim 4, wherein the self-leveling laser apparatus further comprising a transmission mechanism connecting the motor and the locking member. 7. A self-leveling laser apparatus of claim 1, wherein the locking surface of the locking member and the contacting surface of the pendulum are both spherical with a substantially same semidiameter. 8. A self-leveling laser apparatus of claim 1, further comprising a transmission mechanism connecting the motor and the locking member. 9. A self-leveling laser apparatus of claim 1, wherein the transmission mechanism comprising a gear mounted on an output shaft of the motor and a rack fixedly mounted on the locking member. 10. A self-leveling laser apparatus of claim 1, further comprising a damping device for attenuating a swinging movement of the pendulum.
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이 특허에 인용된 특허 (140)
Jan Der-Shyang,TWX ; Chen Tony Kuo-Ti,TWX, 3D laser leveler.
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Dao Ricardo (San Diego CA) Morgan Denny E. (San Diego CA) Kries Harold H. (San Diego CA) Bachelder David M. (San Diego CA), Convective accelerometer and inclinometer.
Tager Robert C. (Saratoga CA) Radding Herbert P. (Saratoga CA) Ludlow Roger D. (Sunnyvale CA), Hand-held builder\s square and string line device incorporating a laser.
Imbrie Gary J. (Beaverton OR) Niemeyer ; III Robert H. (Tigard OR) Walker M. Mark (Hillsboro OR), Laser instrument for tracing reference lines and other geometric figures.
Yuuji Matsumoto JP; Tatsusei Minami JP; Osamu Yoda JP; Akira Tanabe JP, Laser plumbing device, long member plumbing device and long member plumbing method.
Le Mike (c/o Hung Hsing Patent Service Center P.O. Box 55-1670 Taipei TWX), Three-dimensional optical levelling, plumbing and angle-calibrating instrument.
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