An improved flexural pivot design simplifies the structure, fabrication, assembly, and integration into a device. A set of flexures 200 is affixed to two surfaces of a stationary member 100 and a single surface of a rotational member 300. The set of flexures follow opposing centers of curvature 411
An improved flexural pivot design simplifies the structure, fabrication, assembly, and integration into a device. A set of flexures 200 is affixed to two surfaces of a stationary member 100 and a single surface of a rotational member 300. The set of flexures follow opposing centers of curvature 411 and 412 to provide a stable center of rotation 400 and allow repeatable limited-angle rotational motion.
대표청구항▼
The invention claimed is: 1. A flexural pivot device, comprising: a stationary member having a first and second surfaces, a rotate-able member having a surface, a first flexible member affixed between and tangent to both said first surface of said stationary member and said surface of said rotate-
The invention claimed is: 1. A flexural pivot device, comprising: a stationary member having a first and second surfaces, a rotate-able member having a surface, a first flexible member affixed between and tangent to both said first surface of said stationary member and said surface of said rotate-able member such that said first flexible member is preloaded in a curved form with an approximate center of curvature above said first surface of said stationary member, and a second flexible member affixed between and tangent to both said second surface of said stationary member and said surface of said rotate-able member such that said second flexible member is preloaded in a curved form with an approximate center of curvature above said second surface of said stationary member. 2. A flexural pivot device of claim 1, wherein the first and second flexible members are made of a material selected from the group consisting of ceramics, semiconductors and plastic resins. 3. A flexural pivot device of claim 1, wherein the first flexible member is formed integral with the second flexural member with a substantially planar form contiguous through the first flexible member, second flexible member and connecting region. 4. A flexural pivot device of claim 1, wherein the first flexible member is affixed to the stationary member by a spot welding method selected from the group consisting of resistance, laser, ultrasonic, and radio-frequency. 5. A flexural pivot device of claim 2, wherein the first flexible member is formed integral with the stationary member. 6. A flexural pivot device of claim 2, wherein the first flexible member is formed integral with the rotate-able member. 7. A flexural pivot device, comprising: a stationary member having a surface, a rotate-able member having a first and second surfaces, a first flexible member affixed between and tangent to both said surface of said stationary member and said first surface of said rotate-able member such that said first flexible member is preloaded in a curved form with an approximate center of curvature above said first surface of said rotate-able member, and a second flexible member affixed between and tangent to both said surface of said stationary member and said second surface of said rotate-able member such that said second flexible member is preloaded in a curved form with an approximate center of curvature above said second surface of said rotate-able member. 8. A flexural pivot device of claim 7, wherein the first and second flexible members are made of a material selected from the group consisting of ceramics, semiconductors and plastic resins. 9. A flexural pivot device of claim 7, wherein the first flexible member is formed integral with the second flexural member with a substantially planar form contiguous through the first flexible member, second flexible member and connecting region. 10. A flexural pivot device of claim 7, wherein the first flexible member is affixed to the stationary member by a spot welding method selected from the group consisting of resistance, laser, ultrasonic, and radio-frequency. 11. A flexural pivot device of claim 8, wherein the first flexible member is formed integral with the stationary member. 12. A flexural pivot device of claim 8, wherein the first flexible member is formed integral with the rotate-able member.
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이 특허에 인용된 특허 (5)
Alan J. Bilanin ; Robert M. McKillip, Jr., Actuating device with at least three stable positions.
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