In the present invention, the base end part of either one of the sub arm member or the main arm member is linearly movable by the second ball screw. 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. The linkage has a rhombic loop formed of the equal lenght members, 5, 6, 7 and 8. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAKI, HIROMICHI;SHIMIZU, MIKIO;ICHIKAWA, YASUNORI;REEL/FRAME:031303/0520, Free format text: Moreover, in the present invention, the pivot of the joint unit pivotably coupled to the tip end part of the main arm member is driven by the pivot driving unit. US 9,505,138 B2 device. It is possible to generate an exact straight line using the slider crank mechanism but the range of motion is limited. A pivoting unit having a pivoting part that is pivotable centering on an axis in parallel to the pivoting axis of the joint unit may be coupled to the rotor of the rotation unit. Further, in the Scott Russell mechanism device according to the present invention, a gripping unit may be attached to a tip end side of the pivoting unit. 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. If you need custom mechanical parts machined - eMachineShop can help. The Scott Russell mechanism device of, 14. 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. STRAIGHT LINE MOTION MECHANISM Converts rotary motion into a straight line motion. The Scott Russell mechanism device of, 20. A dialindicator is a precision measuring tool that uses a needle or pointer to display a measurement on a dial. Japanese Patent Office, International Search Report of PCT/JP2012/058634, Jun. Actuator mechanism and centrifuge having actuator mechanism, Multi-Functional Fixed Robot with Horizontal Maintenance Unit, Table drive device and work system equipped with table drive device, Driving equipment and the Workpiece clamping unit equipped with the driving equipment. With the suffering came a wave of change that saw millions after their opinions towards not only war, but life itself. 19, 2012, WIPO, 4 pages. 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. wherein the device comprises a pivoting drive source for driving the pivots of the main arm member and the sub arm member centering on the pivoting axis. The present invention can be switched, as for the joint unit attached to the tip end of the main arm, to the total of two ways of pivoting including the pivot cooperating with the angle change of the arm members at the coupling position and the pivot independent from the angle change, and thus the Scott Russell mechanism device can suitably be used for various applications. wherein the degree of the curve of the main arm member is defined such that the second section of the main arm member becomes at a substantially parallel angle to the sub arm member when the angle changer changes the coupling angle so that the base end parts of the main arm member and the sub arm member are most separated from each other. 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. A Scott Russell mechanism device is formed into a boomerang-like shape such that a main arm member coupled to a sub arm member is curved to detour a coupling position. IPTC (1) NACE (2) OTC (1) Date. Moreover, the pivot driving unit is provided at any portion from the coupling position to the tip end side of the main arm member. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). 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. 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. 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. Therefore, the application of the Scott Russell mechanism device according to the present invention expands. Although the PA has many advantages, its main drawback is the hysteresis phenomena, which arises from material polarization and molecule friction [2]. 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. 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. It is possible to generate an exact straight line using the slider crank mechanism but the range of motion is limited. 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. In the present invention, the gripping unit is attached to the tip end side of the pivoting unit. Therefore, the first ball screw will be excluded from the turning targets, compared to the turnings of both of the arm members of the industrial robot relating to the reference document 1 described above, a drive torque caused by the turn is reduced, and both of the arm members can be turned smoothly. Application: used to connect intersecting shafts . 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. HVAC: Heating, Ventilation & Air-Conditioning, Peaucellier Exact Straight Line Mechanism, Scott-Russell Exact Straight Line Mechanism, This post is part of the series: Kinematics - Design of Mechanisms, How to Calculate Cement, Sand and Aggregates in a Beam | Step by Step, Kinematics - Design of Mechanisms: Introduction, Kinematics Design of Mechanisms: Kinematic Inversion, Kinematics Actuation of Machines: Part I Electrical Actuation, Kinematics Actuation of Machines: Part II Hydraulic Actuation, Kinematics Actuation of Machines: Part III Pneumatic Actuation, Kinematics - Analysis of Mechanisms: Methods and Techniques, Kinematics - Synthesis of Mechanisms: Methods and Techniques, Kinematics - Special Mechanisms: Straight Line Mechanisms - II. Therefore, the rotation unit can perform the postural displacement in a different range from the case of coupling in an order different from the above, and the application of the Scott Russell mechanism device according to the present invention further expands. The linkage is named after John Scott Russell (18081882), although watchmaker William Freemantle had already patented it in 1803. cylindrical coordinate type or polar coordinate type, Programme-controlled manipulators characterised by positioning means for manipulator elements, Programme-controlled manipulators characterised by positioning means for manipulator elements with articulated links, MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING, ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL, Gearings comprising primarily only links or levers, with or without slides, Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane, Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying or interconverting oscillating or reciprocating motions, GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNICAL SUBJECTS COVERED BY FORMER USPC, TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION, Multiple controlling elements for single controlled element, United Kingdom Atomic Energy Authority, London, Gilman Engineering & Manufacturing Co., Llc, The United States Of America As Represented By The Secretary Of The Navy, The Regents Of The University Of Michigan. It is a four bar mechanism and all the pairs are turning pairs as shown in Fig. Moreover, in the Scott Russell mechanism device according to the present invention, a joint unit may be pivotably coupled to the tip end part of the main arm member. KINEMATICS OF MECHANISMS FROM THE TIME OF WATT, Animation of a Scott-Russell linkage in action, https://en.wikipedia.org/w/index.php?title=Scott_Russell_linkage&oldid=1087282615, Short description is different from Wikidata, Pages using multiple image with auto scaled images, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 11 May 2022, at 14:35. cartesian coordinate type by rotating at least one arm, excluding the head movement itself, e.g. A Unified Approach to Interpreting Model Predictions Scott M. Lundberg, Su-In Lee; Nonbacktracking Bounds on the Influence in Independent Cascade Models Emmanuel Abbe, Sanjeev Kulkarni, Eun Jee Lee; Linear Convergence of a Frank-Wolfe Type Algorithm over Trace-Norm Balls Zeyuan Allen-Zhu, Elad Hazan, Wei Hu, Yuanzhi Li Scott Russell has filed for patents to protect the following inventions.
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