The linkage is composed of two links. [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]. It converts linear motion, to linear motion in a line roughly perpendicular to the input. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. 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. 1. 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. 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. Moreover, 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. US 9,505,138 B2 device. 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. 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. 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 part of the main arm member can be moved close to right beside the base end part of the sub arm member. wherein a rotation unit having a rotor is coupled to the pivoting member. In the present invention, the rotation unit having the rotor is coupled to the joint unit. 10. Further, Patent Document 2 discloses a Scott Russell mechanism applied to a positioning transport device. 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 optimally-designed stage was fabricated by wire electrical discharge machining and tested to investigate its performance. 33 - March 25, 2009 (40-2) - House of Commons of Canada IPTC (1) NACE (2) OTC (1) Date. A Scott Russell mechanism device, comprising: a sub arm member pivotably coupled to the main arm member by a coupling shaft; and. The dynamic equations of a micro-positioning Scott-Russell (SR) mechanism associated with . Therefore, compared to the case of coupling the units in an order different from above, the pivoting unit positioned at the farthest tip end can perform the postural displacement in a different range. PATENTED CASE, Free format text: CORROSION 2003 (1) CORROSION 2004 (1) International Petroleum Technology Conference (1) Offshore Technology Conference Asia (1) Publisher. 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. 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. 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, 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 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. Thus, the tip end part of the main arm member can be drawn more to the base end part of the sub arm member. If both ends are turned into sliding connections, you get a Trammel of Archimedes. 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. The First World War brought about much destruction and horror to extents that the world had never before seen. 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. a sub arm member pivotably coupled to the main arm member; and. 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. Robert's Mechanism. Therefore, since the rotor of the rotation unit can rotate independently of the displacement of the tip end part of the main arm member, the displacement amount of the rotor of the rotation unit coupled to the tip end side of the main arm member can be increased, and the application of the Scott Russell mechanism device according to the present invention further expands. In the present invention, the rotation unit is coupled to the joint unit. The main arm member may be formed linearly in a first section extending from the base end part to the part corresponding to the coupling position and 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. Application: used to connect intersecting shafts . Conventionally, various kinds of devices using a Scott Russell mechanism exist. 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. In the present invention, the rotation unit is coupled to the joint unit. Japanese Patent Office, International Search Report of PCT/JP2011/058124, Jun. Moreover, in the present invention, when the coupling angle is changed so that the base end parts of the main arm member and the sub arm member are most separated from each other, the degree of the curve of the main arm member is defined such that the second section of the main arm member is in a substantially parallel orientation to the linear sub arm member. 3. 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. Moreover, with the industrial robot according to Patent Document 1, both of the arm members are rotated (turned) about the screw shaft 21 as a rotation center (turning center), then all of the industrial robot including the screw shaft 21 is turned, and thus a problem arises that a drive torque for the turning increases. 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 Evans 'grasshopper' linkage is a variant of a Scott Russell linkage which uses a long link to create a large enough arc to approximate a line. 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. 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. 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, 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 length of the link 2 is equal to the distance between points O2 and O4. Bridge-type amplification mechanism Bridge-type mechanism, rhombic mechanism, double-rocker mechanism, scott-russell mechanism, honey comb mechanism, and lever mechanism are a few amplification mechanisms which have been used for micro/nano manipulation purposes [ 33, 34, 35, 36, 37 ]. 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. Moreover, in the Scott Russell mechanism device according to the present invention, the sub arm member may be linearly formed. 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. The Scott Russell mechanism device of, 19. 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. 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. Il permet de dtailler la liste des options de recherche, qui modifieront les termes saisis pour correspondre la slection actuelle. The Scott Russell mechanism device of. All Rights Reserved. In the present invention, the joint unit, the rotation unit, and the pivoting unit are coupled to each other in this order. The bridge-type mechanism is one of the most widely used displacement ampliers in micro- scale applications. The present invention is made in view of the above situations, and aims to provide a Scott Russell mechanism device that is capable of drawing close to a tip end part of a main arm member proximally to a sub arm member by forming the main arm member into a boomerang-like shape without arranging both of the arm members offset from each other. 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. Scott-Russell mechanism. 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. The device may include 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. 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. 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. Simply download our free CAD . The first exact straight line generating mechanism was invented by a French army officer Charles Nicolas Peaucellier in 1864. The degree of the curve of the main arm member may be 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. Moreover, 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. 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. 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. 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. 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, and a first distance from the base end part of the main arm member to a coupling position of the main arm member to the sub arm member, a second distance from the coupling position of the main arm member to a tip end part thereof, and a third distance from the base end part of the sub arm member to the coupling position are equal to each other. 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, 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. 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, resulting in being able to flexibly perform the moving of the tip end part of the main arm member. Scott A. Russell has filed for patents to protect the following inventions. wherein either one of the base end part of the sub arm member or the base end part of the main arm member is pivotably coupled to the second linearly-moving unit about the virtual straight line as the pivoting axis thereof. In the present invention, the gripping unit is attached to the tip end side of the pivoting unit. SQUSE INC., JAPAN, Free format text: Ce bouton affiche le type de recherche actuellement slectionn. 11. Therefore, since the rotor of the rotation unit can rotate independently of the displacement of the tip end part of the main arm member, the displacement amount of the rotor of the rotation unit coupled to the tip end side of the main arm member can be increased, and the application of the Scott Russell mechanism device according to the present invention further expands. 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. Owner name: 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. A rotation unit having a rotor may be coupled to the pivoting member. The Scott Russell mechanism device of, 17. 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. 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. If you need custom mechanical parts machined - eMachineShop can help.
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