10, 2015, Germany, 6 pages. Additional . European Patent Office, Extended European Search Report Issued in Application No. As detailed in the previous articles there are many four bar linkage based mechanisms which can generate straight lines. In this mechanism, the centres Oand O1 are fixed.. The Scott-Russell (SR) amplifying mechanism [1] is designed for a cutting tool to amplify the PA displacement and carry out high precision for the motion control system. 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. wherein the main arm member and the sub arm member are pivotable about the virtual straight line as a pivoting axis thereof, the angle changer including: 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, and, wherein either one of the base end part of the main arm member or the base end part of the sub arm member is pivotably coupled to the first linearly-moving unit about the virtual straight line as the pivoting axis thereof, and. On this Wikipedia the language links are at the top of the page across from the article title. These displacement amplifier mechanisms often have a proper amplification ratio capable of large working strokes; however, their low resonant frequency limits their application in high-performance jet dispensers. Therefore, as for the application of the Scott Russell mechanism device according to the present invention, the posture of the joint unit can be changed in the total of two kinds of manners. It is possible to generate an exact straight line using the slider crank mechanism but the range of motion is limited. In the present invention, the shape of the main arm member is a boomerang-like shape. Therefore, as for the application of the Scott Russell mechanism device according to the present . One such example is Scott-Russell Mechanism as shown in the figure. PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY. The point A of the rhombus is connect to fixed point O2 through the link 2. 33 - March 25, 2009 (40-2) - House of Commons of Canada Either one of the base end part of the sub arm member or the base end part of the main arm member may be pivotably coupled to the second linearly-moving unit about the virtual straight line as the pivoting axis thereof. An interesting mechanism to consider in designing leverage devices with flextensional joints is the Scott -Russel, also known as half beam mechanism, which is described geometrically in Fig.. You can help Wikipedia by expanding it. Owner name: 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. Further, Patent Document 2 discloses a Scott Russell mechanism applied to a positioning transport device. The design criteria of the Scott-Russell mechanism are to achieve large amplification factor and minimum motion deviation. In this mechanism, the slider is replaced by a link traveling . 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. SQUSE INC., JAPAN, Free format text: A systematic, if not rigorous, approach to the design of gears and cams also is usually presented in such a course. Classified in two types: 1- Exact straight line mechanisms:- Paucellier mechanism, Hart mechanism, Scott-Russel mechanism, Kempe mechanism,etc. Further, as for the positioning transport device according to Patent Document 2, the drive structure of the feed arm according to Patent Document 3, the industrial robot according to the Patent Document 4, and the transport device according to Patent Document 5, the main arm member and the sub arm member are overlapped on and coupled to each other in a thickness direction, and thus, the tip end part of the main arm member is easily drawn proximally to the sub arm member. Thus, when the coupling angle is changed so that a base end part of the main arm member and a base end part of the sub arm member are most separated from each other, a tip end . For this description to be true the acting length of the short link, the blue one, needs to be half as long as the active length of the green one and the pin that connects them must be . 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. 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. The Scott Russell mechanism device of, 15. The mechanism to the right can be refered to as the Scott Russell Mechanism or a more descriptive name is the Scott Russell Exact Straight Line Mechanism. However, since both of the arm members are arranged offset from each other in the overlapped direction, a problem arises that the thickness dimension (dimension in the direction overlapping both of the arm members) of the device increases, and since the centers of both of the arm members in the thickness direction do not match with each other, a problem also arises that the balance in weight degrades in both of the entire arm members. Furthermore, Patent Document 4 discloses a Scott Russell mechanism applied to an industrial robot. Manufacturing methods for gripping devices, robot devices, control methods, control programs, recording media, and articles. The distance from the pivot driving unit to the joint unit becomes closer, and the transmission mechanism regarding the drive can be coordinated compactly. The Scott Russell mechanism device of, 13. It is evident from the figure that this mechanism is made up of isosceles triangles, AB, AC and AO2 are of equal lengths. The Scott Russell mechanism device of, 14. Scott-Russell Mechanism. 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. 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. 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. An axis of the pivot of the pivoting member may be in parallel to the pivoting axis of the joint unit. The Scott Russell mechanism device of, 17. In the present invention, the gripping unit is attached to the tip end side of the pivoting unit. Grasshopper mechanism. Note that, a direction of the X-axis illustrated in, About the above-described angle on the coupling position, When the coupling angle between the main arm member, In a case where the main and sub arm members, Therefore, for example, when the second motor M, Note that, in a case where the change of increasing the coupling angle is desired to be performed quickly, the rotations of the first and second motors M, Note that, the rotations of the first and second motors M, Note that, the Scott Russell mechanism device, Moreover, in a case where it is desired to point the gripping unit, Further, regarding the mechanism for pivoting the joint unit, Moreover, with the configuration as described above, it is suitable for the fourth motor M, Moreover, other than the application of gripping, for example, in a case of applying to the application of placing and moving the workpieces, a placing unit or the like is attached instead of the gripping unit, That is, the Scott Russell mechanism device, As for the Scott Russell mechanism device, Note that, also as for the Scott Russell mechanism device. Furthermore, Patent Document 4 discloses a Scott Russell mechanism applied to an industrial robot. The structural application of flexure hinges in the SR mechanism is especially important to practically play a powerful role in the positioning stage and precision cutting. Patent Document 1 discloses a Scott Russell mechanism applied to a industrial robot. The device may include a pivoting mechanism unit for automatically pivoting the joint unit cooperating with the angle change by the angle changer, a pivot driving unit for pivoting the joint unit via the pivoting mechanism unit independently from the angle change by the angle changer. Moreover, in the Scott Russell mechanism device according to the present invention, the sub arm member may be linearly formed. This article about an automotive technology is a stub. 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. This mechanism is a modification of modified Scott-Russel'smechanism with the difference that the point Pdoes not slide along a straight line, but moves in a circular arc with centre O. With the suffering came a wave of change that saw millions after their opinions towards not only war, but life itself. 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. 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. The Scott Russell mechanism device of. Lever Mechanisms," Published in "Mechanisms in Modern Engineering Design, Drive mechanism and manufacturing apparatus, Based on the collapsible explorer mechanical arm of triangle configuration link transmission, unit for transferring a substrate and apparatus and method for treating the substrate with the unit, Device for carrying out a phase-locked linear displacement of two shafts arranged in parallel. A Scott Russell mechanism device, comprising: a sub arm member pivotably coupled to the main arm member by a coupling shaft; and. wherein the main arm member is formed linearly in a first section extending from the base end part to the part corresponding to the coupling position and in a second section extending from the part corresponding to the coupling position to the tip end part, and the part corresponding to the coupling position is curved, and. 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 Scott Russell mechanism device of, 19. a sub arm member pivotably coupled to the main arm member; and. Scott-Russell Exact Straight Line Mechanism: Scott-Russell The complexity of the mechanisms to generate exact straight lines can be reduced by introduction of one or more slider crank linkages. 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. 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.. When linkage mechanisms are designed to generate exact straight lines the level of complexity increases as compared to the mechanisms designed to generate approximate straight line paths. 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. Furthermore, in the Scott Russell mechanism device according to the present invention, a rotation unit having a rotor may be coupled to the joint unit. A rotation unit having a rotor may be coupled to the pivoting member. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAKI, HIROMICHI;SHIMIZU, MIKIO;ICHIKAWA, YASUNORI;REEL/FRAME:031303/0431, PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY. Learn CAD with SolidWorks 2008- Create new sketch tutorial by John Sinitsky, Creating new file in CAD program - Overview of SolidWorks2008 Menu by John Sinitsky. 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. US 9,505,138 B2 10 45 . Freemantle straight-line linkage from British Patent 2741, November 17, 1803. This paper presents the structural design and analysis of a novel compliant gripper based on the Scott-Russell (SR) mechanism. In order to solve the above problem, a 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. Library of Congress Cataloging-in-Publication Data Russell, Stuart J. The main arm member is formed into a boomerang-like shape such that the coupling position is curved to detour to an opposite side from the side where the sub arm member is positioned. US 9,505,138 B2 device. 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. 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 linkage is a linkage which translates linear motion through a right angle. cartesian coordinate type by rotating at least one arm, excluding the head movement itself, e.g. The Scott Russell mechanism device of, 20. Echinacea. [3], The linkage does not share the disadvantages of the asymmetric Panhard rod, and although more compact than Watt's linkage, it has all the forces concentrated in one link.[4]. 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. 3. Campbell, Scott SPE Disciplines. In the present invention, the joint unit, the rotation unit, and the pivoting unit are coupled to each other in this order. 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. Therefore, the rotation unit attached to the joint unit via the pivoting member can displace its rotor independently of the displacement of the tip end part of the main arm member. 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. This paper describes the development of a gecko-inspired robotic gripper for grasping flat objects using Scott-Russell mechanisms. The linkage has a rhombic loop formed of the equal lenght members, 5, 6, 7 and 8. 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. 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, and. Debates (Hansard) No. It contains solutions to the problems in the book and is available free of charge to adopters. wherein a rotation unit having a rotor is coupled to the pivoting member. wherein an axis of the pivot of the pivoting member is in parallel to the pivoting axis of the joint unit, and. 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. Until recently, Therefore, the rotation unit attached to the joint unit via the pivoting member can displace its rotor independently of the displacement of the tip end part of the main arm member. In the present invention, the gripping unit is attached to the rotor of the rotation unit. Scott Russell mechanism applied to a drive structure of a feed arm. 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. Earlier than January, 2018 (2) Moreover, in the present invention, pivoting member is pivotably coupled to the joint unit and the rotation unit having the rotor is coupled to the pivoting member. The Scott-Russell mechanism gives a theoretically linear motion by using a linkage form with three portions of the links all equal, and a rolling or sliding connection. Application: used to connect intersecting shafts . 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. 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, 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 SR mechanism in combination with a parallelogram mechanism enables. The linkage is named after John Scott Russell (18081882), although watchmaker William Freemantle had already patented it in 1803. This mechanism has eight members and six joints.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'brighthubengineering_com-large-mobile-banner-2','ezslot_15',179,'0','0'])};__ez_fad_position('div-gpt-ad-brighthubengineering_com-large-mobile-banner-2-0'); The complexity of the mechanisms to generate exact straight lines can be reduced by introduction of one or more slider crank linkages. 11862054.1, Mar. 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. 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. Robert's Mechanism. 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. Patent Document 1 discloses a Scott Russell mechanism applied to an industrial robot. Here is a sampling of five herbs that have demonstrated potential immune support benefits: 1. Scott-Russell mechanism. 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. The Scott Russel mechanism converts linear motion in one direction to another direction. 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. Perfect straight lines can also be generated using a linkage mechanism. 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. 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. wherein the device comprises a pivot driving unit provided at any portion from the coupling position toward the tip end side of the main arm member and for pivoting the joint unit. In the present invention, the gripping unit is attached to the tip end side of the pivoting unit. 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. There are many mechanisms based on slider crank linkage which can generate exact straight lines for limited intervals. Two equal length length links are connected to the opposite corners of the rhombus at one end and to a common fixed point at the other ends. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Further, in the present invention, the gripping unit is attached to the rotor of the rotation unit. Japanese Patent Office, International Search Report of PCT/JP2011/058124, Jun. One link is double the size of the other, and is connected to the smaller link by its midpoint. Assignors: ICHIKAWA, YASUNORI, SASAKI, HIROMICHI, SHIMIZU, MIKIO, HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS, MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES, 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, Programme-controlled manipulators characterised by movement of the arms, e.g.
Houston Astros Front Office Salaries,
Avera Fitness Center Membership Cost,
Ryan Callaghan Married,
Fort Hood Sergeant Major,
What Does It Mean When Your Sweat Smells Metallic,
Articles S