wherein the main arm member is protrudingly provided with a convex part at a side coupled to the sub arm member on the coupling position, wherein the main arm member is formed into a boomerang shape such that the coupling position is curved to make the base end part of the main arm member, the coupling shaft of the convex part, and the tip end part of the main arm member positioned on a same straight line, and. The First World War brought about much destruction and horror to extents that the world had never before seen. Developed by James Watt for reciprocating piston of steam engine. The Bricard inversor directly incorporates the Scott Russell's links, replacing the previously required straight line connection and allowing for two exact straight line outputs at right angles. Therefore, a plurality of variations can be provided to the method of moving the base end part of both of the arm members, and the tip end part of the main arm member can move flexibly. Part of the Lecture Notes in Electrical Engineering book series (LNEE,volume 505) Abstract This paper describes the design of an exact straight line motion mechanism, commonly known as a Scott-Russell mechanism (SRM), for industrial application. The Scott Russell mechanism device of, 14. In the present invention, either one of the base end parts of both of the arm members is linearly moved by the rotation of the first ball screw, and the pivots (turnings) of both of the arm members are driven about the virtual straight line connecting the base end parts of both arm members therebetween as the pivoting axis thereof, resulting in only both of the arm members turning. Therefore, a plurality of variations can be provided to the method of moving the base end part of both of the arm members, resulting in being able to flexibly perform the moving of the tip end part of the main arm member. Moreover, by providing a pivot driving unit to the main arm member, as well as providing a fourth motor and a drive transmission mechanism unit to the sub arm member, the Scott Russell mechanism device can switch between pivoting the joint unit associatively a change of a coupling angle of the arm members and and pivoting the joint unit by the drive of the fourth motor. The application of the Scott Russell mechanism device according to the present invention expands by attaching various kinds of units corresponding to various applications to its rotor. A Scott Russell mechanism is a mechanism where a linear main arm member is pivotably coupled to a sub arm member, a distance from a base end part of the main arm member to a coupling position thereof, a distance from the coupling position of the main arm member to a tip end part thereof, and a distance from a coupling position of the sub arm member to a base end part thereof are all equal to each other, and in a case where a coupling angle between both of the arm members is changed, the tip end part of the main arm member linearly moves along a straight line connecting the tip end part of the main arm member and the based end part of the sub arm member. Therefore, the application of the Scott Russell mechanism device according to the present invention expands. The First World War. - A-Level English - Marked by Teachers.com A standard Scott Russell straight- mechanism was invented by a French army officer, line mechanism provides an exact straight-line mo- Charles Nicolas Peaucellier, in 1864. Scott-Russell mechanism. Furthermore, Patent Document 4 discloses a Scott . The resonant frequency was improved by embedding a Scott-Russell mechanism [ 31 ]. Haluck 2002). In the present invention, the rotation unit is coupled to the joint unit. Until recently, Further, in the Scott Russell mechanism device according to the present invention, a gripping unit may be attached to the rotor of the rotation unit. It contains solutions to the problems in the book and is available free of charge to adopters. a pivoting unit having a pivoting part that is pivotable centering on an axis in parallel to the pivoting axis of the joint unit is coupled to the rotor of the rotation unit. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. These mechanisms are simple linkage mechanisms with revolute joints, but they can only generate approximate straight lines and that too only for short lengths. Further, Patent Document 5 discloses a Scott Russell mechanism in a modified example where the coupling between the main arm member and the sub arm member is in a crank shape, the Scott Russell mechanism applied to a transport device. A systematic, if not rigorous, approach to the design of gears and cams also is usually presented in such a course. Further, in the present invention, the gripping unit is attached to the rotor of the rotation unit. It converts linear motion, to linear motion in a line roughly perpendicular to the input. Scott-Russell variation #1. Machine Kinematics Question Papers - Sanfoundry In the present invention, the gripping unit is attached to the rotor of the rotation unit. Therefore, compared to the conventional device, a drive torque caused by the turning can be reduced, and both of the arm members can be turned smoothly. Stuart J. Russell and Peter Norvig Upper Saddle River, New Jersey 07458. In the present invention, the joint unit pivotably coupled to the tip end part of the main arm member can be pivoted in a total of two kinds of manners including the pivot cooperating with the angle change between both of the arm members at the coupling position and the pivot independent of the angle change. 10. Patent Document 1 discloses a Scott Russell mechanism applied to an industrial robot. Echinacea, also known as Coneflower, is legendary for a reason: science has shown multiple species of Echinacea can provide potentially broad-reaching support for the innate and adaptive immune system. for multi-joint type robot, Gravitation balancing device, articulated robot, and wrist device for robot, Manipulator with flat or three-dimensional trajectory suitable for high operating rate, Mechanical arm with a 2 freedom-degree wrist attitude regulation mechanism, Exhaust gas purification catalyst and method for producing the same, Motor-driven device for moving workpieces, Pick and place device having two parallel axes, Scara type robot with counterbalanced arms, Manipulator, manufacturing machine and production line using the same. Development of a highly efficient bridge-type mechanism based on Furthermore, in the Scott Russell mechanism device according to the present invention, a base end part of the main arm member and a base end part of the sub arm member that is on the opposite side from the coupling side of the sub arm member are positioned on the same virtual straight line. Therefore, since the rotation unit has the rotor that is rotatable independently to the displacement of the tip end part of the main arm member, the degree of freedom of the posture of the rotor of the rotation unit provided to the tip end side of the main arm member improves. In the present invention, either one of the base end parts of both of the arm members is linearly moved by the rotation of the first ball screw, and the pivots (turnings) of both of the arm members are driven about the virtual straight line connecting the base end parts of both arm members therebetween as the pivoting axis thereof so as to turn only both of the arm members. Mechatronic System Using a Straight-Line Motion Mechanism for AGV Therefore, by the rotor of the rotation unit where the amount of the postural displacement is increased compared to the conventional device, the Scott Russell mechanism device according to the present invention can be applied to the application of performing the gripping while flexibly responding to the orientation of a workpiece as a gripping target. Peaucellier linkage can convert an input circular motion to the exact straight line motion. Further, in the present invention, the gripping unit is attached to the rotor of the rotation unit. The Scott Russell mechanism device of. In the present invention, the joint unit pivotably coupled to the tip end part of the main arm member can be pivoted in the total of two kinds of manners including the pivot cooperating with the angle change between both of the arm members at the coupling position and the pivot independent to the angle change. Scott Russell linkage - Wikipedia In the present invention, the gripping unit is attached to the tip end side of the pivoting unit. The requirements of the design are identified and the modelling phases of the mechanism are described. demonstrated by a study of mechanisms already in existence, such as the linkage of a retractable landing gear, computing mechanisms, mechanisms used in an automobile, and the like. PDF (12) United States Patent (10) Patent No.: US 9,505,138 B2 Sasaki et al Exact dimensions of scott russell mechanism - caqweoutlet The present invention relates to a device applied with a Scott Russell mechanism where a main arm member and a sub arm member are coupled to each other and a coupling angle therebetween is changeable, and particularly relates to a Scott Russell mechanism device that can attach units to the tip end side of the main arm member and change postures of the units variously. US20140026705A1 - Scott russell mechanism device - Google Scott Russel | eMachineShop Earlier than January, 2018 (2) Search Campbell, Scott: oil formation volume factor | SPE The present invention relates to a device applied with a Scott Russell mechanism where a main arm member and a sub arm member are coupled to each other and a coupling angle therebetween is changeable, and particularly relates to a Scott Russell mechanism device that can allow a tip end part of a main arm member to approach a sub arm member without interfering even in a case where the coupling angle of the base end parts of the main arm member and the sub arm member is changed so that the base end parts are spaced from each other, and can attach various kinds of units to the tip end side of the main arm member and change postures of the units in a wide range.
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