IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0793019
(2010-06-03)
|
등록번호 |
US-8393243
(2013-03-12)
|
우선권정보 |
JP-2005-303416 (2005-10-18); JP-2006-167510 (2006-06-16) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Harness, Dickey & Pierce, P.L.C.
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
20 |
초록
▼
A link mechanism arranged between a fixed base and a movable base. The mechanism includes a drive gear reducer, a first arm, a second arm, a connection base, a first link, and a second link. The drive gear reducer includes a body, an input shaft, a first output shaft, and a second output shaft. The
A link mechanism arranged between a fixed base and a movable base. The mechanism includes a drive gear reducer, a first arm, a second arm, a connection base, a first link, and a second link. The drive gear reducer includes a body, an input shaft, a first output shaft, and a second output shaft. The first arm is connected to the fixed base and the body of the reducer. The second arm is connected to the second output shaft and the movable base. The connection base is arranged such that the second arm is between the connection base and the reducer, the connection base is connected to the first output shaft. The first link is connected to the fixed base and the connection base. The second link is connected to the connection base and the movable base.
대표청구항
▼
1. A link mechanism arranged between a fixed base and a movable base, the mechanism comprising: a harmonic drive gear reducer including a body, an input shaft, a first output shaft, and a second output shaft;a first arm connected to both of the fixed base and the body of the reducer;a second arm con
1. A link mechanism arranged between a fixed base and a movable base, the mechanism comprising: a harmonic drive gear reducer including a body, an input shaft, a first output shaft, and a second output shaft;a first arm connected to both of the fixed base and the body of the reducer;a second arm connected to both of the second output shaft and the movable base;a connection base arranged such that the second arm is between the connection base and the reducer, the connection base is connected to the first output shaft;a first link connected to both of the fixed base and the connection base; anda second link connected to both of the connection base and the movable base. 2. The mechanism according to claim 1, wherein the first output shaft and the second output shaft axially overlap each other. 3. The mechanism according to claim 1, wherein the ratio of a reduction ratio of the first output shaft to the input shaft to a reduction ratio of the second output shaft to the input shaft is 2:1. 4. The mechanism according to claim 1, wherein the reducer is integral with a motor operable to drive the input shaft. 5. The mechanism according to claim 4, wherein the first arm and the second arm are hollow;wherein the drive motor is hollow;wherein the connection base has a hollow communicating portion that allows communication between a hollow portion of the drive motor and a hollow portion of the second arm; andwherein the first arm, the second arm, the drive motor, and the connection base define a continuous hollow passage. 6. A link mechanism arranged between a fixed base and a movable base, the mechanism comprising: a harmonic drive gear reducer including a body, an input shaft, a first output shaft, and a second output shaft;a first arm connected to the fixed base and the second output shaft;a second arm connected to the body of the reducer and the movable base;a connection base positioned such that the first arm is between the connection base and the reducer, the connection base is connected to the first output shaft;a first link connected to the fixed base and the connection base; anda second link connected to the connection base and the movable base. 7. The mechanism according to claim 6, wherein the first output shaft and the second output shaft axially overlap. 8. The mechanism according to claim 6, wherein the ratio of a reduction ratio of the first output shaft to the input shaft to a reduction ratio of the second output shaft to the input shaft is 2:1. 9. The mechanism according to claim 6, wherein the reducer is integral with a drive motor that drives the input shaft. 10. The mechanism according to claim 9, wherein the first arm and the second arm are hollow;wherein the drive motor is hollow;wherein the connection base has a hollow communicating portion that allows communication between a hollow portion of the reducer and a hollow portion of the first arm; andwherein the first arm, the second arm, the drive motor, and the connection base define a continuous hollow passage. 11. An industrial robot comprising: a first link mechanism including a fixed base, a connection base, a first arm, and a first link, the first arm is connected to the fixed base, the first link is connected to the fixed base and the connection base;a second link mechanism including the connection base, a movable base, a second arm, and a second link, the second arm is connected to the movable base, the second link is connected to the connection base and the movable base; anda harmonic drive gear mechanism between the first arm and the second arm, the harmonic drive gear mechanism including a body, an input shaft, a first output shaft, and a second output shaft, the body is connected to the first arm, the input shaft is connected to the drive motor, the first output shaft is configured to convert rotation of the input shaft and transmit the rotation to the connection base, the second output shaft is configured to convert rotation of the input shaft and transmit the rotation to the second arm. 12. The industrial robot according to claim 11, wherein the ratio of a reduction ratio of the first output shaft to the input shaft to a reduction ratio of the second output shaft to the input shaft is 2:1. 13. An industrial robot comprising: a first link mechanism including a fixed base, a connection base, a first arm, and a first link, the first arm is connected to the fixed base, the first link is connected to the fixed base and to the connection base;a second link mechanism including the connection base, a movable base, a second arm, and a second link, the second arm is connected to the movable base, the second link is connected to the connection base and the movable base; anda harmonic drive gear mechanism between the first arm and the second arm, the harmonic drive gear mechanism including a body, an input shaft, a first output shaft, and a second output shaft, the body is connected to the second arm, the input shaft is connected to a drive motor, the first output shaft is configured to convert rotation of the input shaft and transmit the rotation to the connection base, the second output shaft is configured to convert rotation of the input shaft and transmit the rotation to the first arm. 14. The industrial robot according to claim 13, wherein the ratio of a reduction ratio of the first output shaft to the input shaft to a reduction ratio of the second output shaft to the input shaft is 2:1.
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