A gripper comprises a motor 25, contained within a case 32, for driving a translational nut 23 that is moved in translation, a finger 20 having one end connected to the translational nut 23, with the other end being connected to the case 32, in which when the one end is pulled upon a movement of the
A gripper comprises a motor 25, contained within a case 32, for driving a translational nut 23 that is moved in translation, a finger 20 having one end connected to the translational nut 23, with the other end being connected to the case 32, in which when the one end is pulled upon a movement of the translational nut, the finger is expanded in the amount of displacement at a top end, a plate-like stopper member 26 connected to one end of the finger 20 and having a projecting piece 26b around the outer periphery thereof, a holder member 22 for inserting loosely the projecting piece 26b, a locating nut 28 for adjusting a predetermined gap from the stopper member 26 by being threadingly engaged with a threaded portion of the holder member 22, and a spring 29 for pressing the locating nut 28.
대표청구항▼
The invention claimed is: 1. A gripper comprising: a driving source for driving a translational portion that is moved in translation, said driving source being contained within a case; a displacement expanding member which is operable to grip an object, the displacement expanding member having one
The invention claimed is: 1. A gripper comprising: a driving source for driving a translational portion that is moved in translation, said driving source being contained within a case; a displacement expanding member which is operable to grip an object, the displacement expanding member having one end connected to said translational portion, and another end being connected to said case, in which when said one end is pulled upon a movement of said translational portion, said displacement expanding member is displaced to grip the object at a common top end of the displacement expanding member; a plate-like stopper member connected to one end of said displacement expanding member and having a projecting piece around the outer periphery thereof; a first holder member having a cylindrical portion with a first notch for inserting loosely the projecting piece of said stopper member, and provided with a threaded portion around the outer periphery of said cylindrical portion; a locating nut for adjusting a predetermined gap from said stopper member by being threadingly engaged with said threaded portion of said holder member; and pressing means for pressing said locating nut. 2. The gripper according to claim 1, further comprising a connection member having a connection portion for connecting one end of said displacement expanding member and a projection projecting in a direction against said connection portion, and said holder member having a concave portion for allowing said connection member to be engaged in. 3. The gripper according to claim 2, further comprising a mounting adapter member having a reference portion, with a convex portion at one end, serving as a reference for mounting and a flange portion, and said holder member having a second notch provided on a cylindrical portion of said holder member to be engaged by a convex portion of said mounting adapter member. 4. The gripper according to claim 1, further comprising a mounting adapter member having a reference portion, with a convex portion at one end, serving as a reference for mounting and a flange portion, and said holder member having a second notch provided on a cylindrical portion of said holder member to be engaged by a convex portion of said mounting adapter member. 5. The gripper according to claim 1, wherein said one end and said another end are distal to said common top end. 6. The gripper according to claim 1, wherein said displacement expanding member is in the form of a first finger and a second finger, and wherein said first finger includes said one end and said another end, and said second finger includes an additional one end and an additional another end, the ends of the second finger correspond to the ends of the first finger. 7. The gripper according to claim 6, wherein the one end of the first finger is connected to the additional one end of the second finger through a shared portion. 8. A gripper comprising: a driving source for driving a translational portion that is moved in translation, said driving source being contained within a case; a displacement expanding member which is operable to grip an object, the displacement expanding member having one end connected to said translational portion, with another end being connected to said case, in which when said one end is moved upon a movement of said translational portion, said another end is held in place while the displacement expanding member is displaced to grip said object at a common top end of the displacement expanding member; a holder member, to which said another end of said displacement expanding member is connected, having a cylindrical portion and a tapped hole bored in said cylindrical portion; a screw member threadingly engaging said tapped hole; and a locating member secured to said translational portion and having a contact portion making contact with said screw member, wherein said locating member is operable to rotate so as to abut said screw member and limit the displacement of said displacement expanding member. 9. The gripper according to claim 8, wherein said contact portion is shaped as a triangle, said tapped hole comprises at least two holes of a first tapped hole and a second tapped hole, and said screw member has a first screw member and a second screw member, in which said first screw member and said second screw member make contact with different sides of said triangle. 10. The gripper according to claim 9, wherein said screw member has a shock eliminating function for absorbing a columnar shock on said screw member at a top end. 11. The gripper according to claim 8, wherein said screw member has a shock eliminating function for absorbing a columnar shock on said screw member at a top end. 12. The gripper according to claim 8, wherein said one end of said displacement expanding member and said another end of said displacement expanding member are respectively disposed at a position distal to tips of said displacement expanding member. 13. The gripper according to claim 8, wherein said screw member is disposed to extend in a direction perpendicular to said translation portion. 14. The gripper according to claim 8, wherein said one end and said another end are distal to said common top end. 15. The gripper according to claim 8, wherein said displacement expanding member is in the form of a first finger and a second finger, and wherein said first finger includes said one end and said another end, and said second finger includes an additional one end and an additional another end, the ends of the second finger correspond to the ends of the first finger. 16. The gripper according to claim 15, wherein the one end of the first finger is connected to the additional one end of the second finger through a shared portion. 17. A gripper comprising: a driving source for driving a translational portion that is moved in translation, said driving source being contained within a case; a displacement expanding member which is operable to grip an object, the displacement expanding member having one end connected to said translational portion, with another end being connected to said case, in which when said one end is moved upon a movement of said translational portion, said displacement expanding member is displaced to grip an object at a common top end of the displacement expanding member; a holder member, to which said another end of said displacement expanding member is connected, having a cylindrical portion and a tapped hole bored in said cylindrical portion; a screw member threadingly engaging said tapped hole; and a locating member secured to said translational portion and having a contact portion making contact with said screw member, wherein said contact portion is shaped as a triangle, said tapped hole comprising at least two holes of a first tapped hole and a second tapped hole, said screw member has a first screw member and a second screw member, in which said first screw member and said second screw member make contact with different sides of said triangle. 18. The gripper according to claim 17, wherein said one end and said another end are distal to said common top end. 19. The gripper according to claim 17, wherein said displacement expanding member is in the form of a first finger and a second finger, and wherein said first finger includes said one end and said another end, and said second finger includes an additional one end and an additional another end, the ends of the second finger correspond to the ends of the first finger. 20. The gripper according to claim 19, wherein the one end of the first finger is connected to the additional one end of the second finger through a shared portion.
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이 특허에 인용된 특허 (6)
Lippitt Robert G. ; Lippitt Raymond F., Annularly expanding and retracting gripping and releasing mechanism.
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