The First World War brought about much destruction and horror to extents that the world had never before seen. 11862054.1, Mar. The linkage has a rhombic loop formed of the equal lenght members, 5, 6, 7 and 8. There are many mechanisms based on slider crank linkage which can generate exact straight lines for limited intervals. 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. The design criteria of the Scott-Russell mechanism are to achieve large amplification factor and minimum motion deviation. STRAIGHT LINE MOTION MECHANISM Converts rotary motion into a straight line motion. In the present invention, the joint unit, the rotation unit, and the pivoting unit are coupled to each other in this order. 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. Theory of Machines and Mechanisms - John J. Uicker 2003 This work is a supplement to accompany the authors' main text. Conventionally, various kinds of devices using a Scott Russell mechanism exist. SQUSE INC., JAPAN, Free format text: Furthermore, Patent Document 4 discloses a Scott . ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAKI, HIROMICHI;SHIMIZU, MIKIO;ICHIKAWA, YASUNORI;REEL/FRAME:031303/0520, Free format text: 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. Copyright 2022 Bright Hub PM. Scott Russell's Mechanism - Special Mechanism - Kinematics of Machinery Ekeeda 914K subscribers Subscribe 44 2.1K views 7 months ago Subject - Kinematics of Machinery Video Name - Scott. It is possible to generate an exact straight line using the slider crank mechanism but the range of motion is limited. 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. [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]. A tip end part of a main arm member of a Scott Russell mechanism is enabled to be brought close to a base end part of a sub arm member. SQUSE INC., JAPAN, Free format text: Moreover, the pivot driving unit is provided at any portion from the coupling position to the tip end side of the main arm member. 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. 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. It can be used to form a right-angle change of motion, linear-to-linear. Patent Document 1 discloses a Scott Russell mechanism applied to an industrial robot. Scott-Russell mechanism. 3. The Scott Russell mechanism device of, 12. wherein a rotation unit having a rotor is coupled to the pivoting member. Moreover, in the present invention, the gripping unit is attached to the tip end side of the pivoting unit. 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. 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. Animation of the Scott Russell Linkage attached to a Peaucellier-Lipkin Linkage. Jasen Russell tendre la recherche. 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. 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.. The proposed stage showed the first natural frequency of 57 Hz and the maximum stroke of 122.84 m, 108.46 m, 0.685 mrad in the x-, y-, and -direction, respectively. 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. Machine Kinematics Questions and Answers - Application of Kutzbach Criterion to Plane Mechanisms ; advertisement. The resonant frequency was improved by embedding a Scott-Russell mechanism [ 31 ]. 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 shape of the main arm member is a boomerang-like shape. 10. As detailed in the previous articles there are many four bar linkage based mechanisms which can generate straight lines. 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. 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. With the suffering came a wave of change that saw millions after their opinions towards not only war, but life itself. The distance from the pivot driving unit to the joint unit becomes closer, and the transmission mechanism regarding the drive can be coordinated compactly. 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, 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. 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. Explanation: Scott Russell's mechanism is an exact straight line mechanism, however this mechanism is not so useful for practical purposes as friction and wear of sliding pair is more than that of turning pair. In this mechanism, the centres Oand O1 are fixed.. Emplois Personnes LinkedIn Learning . Further, in the present invention, the gripping unit is attached to the rotor of the rotation unit. 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. It contains solutions to the problems in the book and is available free of charge to adopters. Application: Creates an approximate straight line if sliding along flat plane. 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. In the present invention, the pivoting of the joint unit pivotably coupled to the tip end part of the main arm member is driven by the pivot driving unit. 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. The Scott Russell mechanism device of, 13. 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. PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY. 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 pivot driving unit for pivoting the joint unit via the pivoting mechanism unit independently from the angle change by the angle changer. A joint unit pivotably coupled to a tip end part of a main arm member of a Scott Russell mechanism is pivoted in two ways. The Scott Russell mechanism device of, 14. Includes bibliographical references and index. 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. 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. 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. In the present invention, the main arm member is formed into the boomerang-like shape to detour to the opposite side of the side where the sub arm member is positioned. 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. Here is a sampling of five herbs that have demonstrated potential immune support benefits: 1. 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. mechanism of machinery straight and parallel line mechanism table of contents straight line mechanism introduction history different mechanism used for The point A of the rhombus is connect to fixed point O2 through the link 2. Haluck 2002). 2- Approximate straight line mechanisms:- Modified . Robert's Mechanism. Classified in two types: 1- Exact straight line mechanisms:- Paucellier mechanism, Hart mechanism, Scott-Russel mechanism, Kempe mechanism,etc. Until recently, It consists of both sliding and turning pairs Download Solution PDF Share on Whatsapp ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAKI, HIROMICHI;SHIMIZU, MIKIO;ICHIKAWA, YASUNORI;REEL/FRAME:031303/0431, Free format text: LADDERS, FOOT MECHANISMS FOR LADDERS, AND RELATED METHODS Publication number: 20220381087 Grasshopper Mechanism: This mechanism is a modification of the Scott-Russell Mechanism. Further, in the Scott Russell mechanism device according to the present invention, the main arm member and the sub arm member may be pivotable about the virtual straight line as a pivoting axis thereof. Therefore, the rotation unit attached to the joint unit via the pivoting member can displace its rotor independently of the amount of the displacement of the tip end part of the main arm member, and the postural displacement of the rotor positioned at the farthest tip end increases much more. 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 of the angle change. 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. 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 pivot of the joint unit pivotably coupled to the tip end part of the main arm member is driven by the pivot driving unit. Scott-Russell variation #1. Owner name: It converts linear motion, to linear motion in a line roughly perpendicular to the input. European Patent Office, Extended European Search Report Issued in Application No. With the industrial robot according to Patent Document 1, both of the arm members are rotated (turned) about the screw shaft. The linkage is named after John Scott Russell (18081882), although watchmaker William Freemantle had already patented it in 1803. 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. Further, Patent Document 2 discloses a Scott Russell mechanism applied to a positioning transport device. 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. Manufacturing methods for gripping devices, robot devices, control methods, control programs, recording media, and articles. Therefore, the application of the Scott Russell mechanism device according to the present invention expands. A Scott Russell linkage is a linkage which translates linear motion through a right angle. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). The Scott Russell mechanism device of, 20. 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. 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. The Scott Russell mechanism device of, 17. Figure 3. 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. Priority claimed from JPPCT/JP2011/058124. All Rights Reserved. If you need custom mechanical parts machined - eMachineShop can help. US 9,505,138 B2 device. 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. 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, 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. 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. 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 ]. 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 rotation unit having a rotor may be coupled to the pivoting member. However, a bridge-type mechanism with an external load always works in an energy-inefcient situation due to the storage of strain energy in the exural hinges, which can be validated by the analytical model established in this paper. 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. 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. An axis of the pivot of the pivoting member may be in parallel to the pivoting axis of the joint unit. wherein 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. The movement of a body, or link, is studied using geometry so the link is considered to be rigid. 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. 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. 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. 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 gripping unit is attached to the rotor of the rotation 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. 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. This mechanism is called as Peaucellier Exact Straight Line Mechanism and commonly more as Peaucelliers linkage. The Scott Russell mechanism device of, 19. 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. 19, 2012, WIPO, 4 pages. One such example is Scott-Russell Mechanism as shown in the figure. A systematic, if not rigorous, approach to the design of gears and cams also is usually presented in such a course. Based on the geometry of the linkage the output motion is a simple sine function of the drive link or a simple harmonic motion. With the industrial robot according to Patent Document 1, a main arm member (the first arm 31 in Patent Document 1) and a sub arm member (the second arm 32 in Patent Document 1) have fixed thicknesses to secure a desired rigidity (have fixed width and thickness dimensions in cross-sections orthogonal to longitudinal directions of both of the arm members), and thus, as base end parts of both of the arm members (end parts on the screw shaft 21 side in Patent Document 1) are spaced from each other, the arm members interfere with each other at a coupling position of both of the arm members, and a problem arises that the tip end part of the main arm member (end part on the side where the holder H is provided in Patent Document 1) cannot be moved proximally to the sub arm member (a problem arises that the holder H is hard to be moved close at hand to the screw shaft 21 side).
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