If both ends are turned into sliding connections, you get a Trammel of Archimedes. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). Further, when both of the base end parts of both of the arm members are moved in the same direction by the same amount, both of the arm members can be moved entirely while keeping their postures. Moreover, Patent Document 3 discloses a Scott Russell mechanism applied to a drive structure of a feed arm. By the constraints of the geometry point A moves in a circular path and as the point A moves in a circle point P traverses an exact straight line path normal to the line joining O2 and O4.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'brighthubengineering_com-large-mobile-banner-1','ezslot_14',174,'0','0'])};__ez_fad_position('div-gpt-ad-brighthubengineering_com-large-mobile-banner-1-0'); From the construction of the Peaucellier linkage it is clear that this is a much more complex mechanism than the mechanisms generating approximate straight lines, which were simple four bar linkages. Since the postures of these units on the tip end side depend on the direction (posture) of the tip end of the main arm member, a problem arises that a range in which the postures of the units attached to the tip end of the main arm member can be changed is limited. Until recently, CORROSION 2003 (1) CORROSION 2004 (1) International Petroleum Technology Conference (1) Offshore Technology Conference Asia (1) Publisher. It is shown that O is a fixed pin joint, A is the input point to be driven by a PSA, and B is the output point. Freemantle straight-line linkage from British Patent 2741, November 17, 1803. The linkage is named after John Scott Russell (18081882), although watchmaker William Freemantle had already patented it in 1803. 6 Easy Ways to Support (Boost) Your Immune System Naturally A Scott Russell mechanism device, comprising: a sub arm member pivotably coupled to the main arm member by a coupling shaft; and. In the present invention, the pivoting member is pivotably coupled to the joint unit and the rotation unit having the rotor is coupled to the pivoting member. Jasen Russell sur LinkedIn : The mystery of what's eating our plastic Dynamic modeling of a scott-russell amplifying mechanism driven by a A pivoting axis of the pivot of the joint unit may be in parallel to an axis of the pivots of the main arm member and the sub arm member at the coupling position. The angle changer may have a first ball screw arranged in parallel to the virtual straight line, and a first linearly-moving unit for being linearly moved by a rotation of the first ball screw. Modelling and Simulation of a Straight Line Motion Mechanism for an angle changer for changing a coupling angle between the main arm member and the sub arm member. Thus, the degree of posturing freedom of the rotor of the rotation unit positioned to the farthest tip end increases, and the application of the Scott Russell mechanism device according to the present invention further expands. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. PATENTED CASE, Free format text: The First World War brought about much destruction and horror to extents that the world had never before seen. In the present invention, the rotation unit having the rotor is coupled to the joint unit. 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. Relative motion angles other than 90 degrees are possible by simply rotating the fixed guide. Furthermore, in the Scott Russell mechanism device according to the present invention, the angle changer may also have a second ball screw arranged in parallel to the first ball screw, and a second linearly-moving unit for being linearly moved by a rotation of the second ball screw. 11862054.1, Mar. Scott Russell's Mechanism - Special Mechanism - YouTube Either one of the base end part of the main arm member or the base end part of the sub arm member may be pivotably coupled to the first linearly-moving unit about the virtual straight line as the pivoting axis thereof. Moreover, the present invention aims to provide a Scott Russell mechanism device that allows a main arm member and a sub arm member to pivot at a base end part of both of the arm members to reduce a drive torque for turning both of the arm members, and to increase in degree of freedom in postures of various kinds of units attached to a tip end of the main arm member compared to the conventional degree. 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. Development and dynamic modelling of a flexure-based Scott-Russell SCOTT RUSSEL MECHANISM [THEORY OF MACHINES] 1,251 views Sep 9, 2018 A Scott Russell linkage gives a theoretically linear motion by using a linkage form with three portions of the links all. System identification of a Scott-Russell amplifying mechanism with Development of a gecko-like robotic gripper using Scott-Russell mechanisms The device may include a pivoting drive source for driving the pivots of the main arm member and the sub arm member centering on the pivoting axis. 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. Scott Russell Business Consultant Santa Barbara, California, United States 2K followers 500+ connections Join to connect Proactivate Consulting LLC About A Senior Business Executive with a. . This article about an automotive technology is a stub. Scott Russel | eMachineShop Mechatronic System Using a Straight-Line Motion Mechanism for AGV Manufacturing methods for gripping devices, robot devices, control methods, control programs, recording media, and articles. Further, when both of the base end parts of both of the arm members are moved in the same direction by the same amount, both of the arm members can be moved entirely while keeping their postures. Therefore, even if the main arm member and the sub arm member are not arranged to offset from each other, when the coupling angle is changed so that the base end parts of both of the arm members are separated from each other, interference between the arm members at the coupling position of both of the arm members is subsided, and the tip end part of the main arm member is easily drawn close to the sub arm member. Application: Creates an approximate straight line if sliding along flat plane. Specifically, the tip end part of the main arm member can be moved by only moving the base end part of the main arm member, by only moving the base end part of the sub arm member, or by moving both of the base end parts of both of the arm members, respectively. A rotation unit having a rotor may be coupled to the pivoting member. As point A moves vertically, point B moves horizontally. Moreover, in each of the above-described patent documents, various kinds of units, such as the holder, the arm, and the hand, are attached to the tip end of the main arm member. In the present invention, the rotation unit is coupled to the joint unit. A straight-line mechanism causes a point to travel in a straight line, or in a nearly straight line, without being guided by a plane surface. Moreover, in each of the above-described patent documents, various kinds of units, such as the holder, the arm, and the hand, are attached to the tip end of the main arm member. Therefore, the gripping unit can be pivoted proximally to the workpiece which is the gripping target, and the Scott Russell mechanism device including a griping function suitable for such a gripping application can be provided. The Scott Russell mechanism device of, 19. Scott_Russell_Straight_Line_Generator / www.inventhp.com In each of the applets, drag the sliders to change the shape of the path of the free point to obtain the longest possible straight path. Development of a highly efficient bridge-type mechanism based on ARTICULATED MOTORIZED ARM WITH CABESTAN WITH CABLE COMPRISING A BRAKE. 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. 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. The Scott Russell mechanism device of, 12. Scott Russell has filed for patents to protect the following inventions. 10.1016/j.sna.2005.06.025 | DeepDyve The flexure-based Scott-Russell mechanism can be simplified as four bar mechanism and shown in Fig. This mechanism can generate an exact straight line if the link dimensions are correct. This paper presents the structural design and analysis of a novel compliant gripper based on the Scott-Russell (SR) mechanism. PDF 2. Modified Scott-Russel mechanism. - Rama University

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