scott russell mechanism application

The Scott Russell mechanism device of. The Scott Russell mechanism device of, 13. a sub arm member pivotably coupled to the main arm member; and. Moreover, the pivot driving unit is provided at any portion from the coupling position to the tip end side of the main arm member. 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. 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. System identification of a Scott-Russell amplifying mechanism with Further, Patent Document 2 discloses a Scott Russell mechanism applied to a positioning transport device. Peaucellier linkage can convert an input circular motion to the exact straight line motion. 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. 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. 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. 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. Scott Russell's Mechanism - Special Mechanism - YouTube [1][2], A different form of the linkage has been used in a front-wheel-drive vehicle with solid rear axle to control lateral movement, and with a flexing elastomeric connection instead of the rolling or sliding connection. Universal Joint/Hooke's Joint. 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 . Therefore, even if the main arm member and the sub arm member are not arranged to offset from each other, interference between the arm members at the coupling position of both of the arm members can be subsided, and compared to the conventional device without an offset arrangement, the tip end part of the main arm member can be drawn close to the sub arm 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. 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. With the Scott Russell mechanism device, a moving range of the tip end side of the main arm member can be enlarged. This paper presents the structural design and analysis of a novel compliant gripper based on the Scott-Russell (SR) mechanism. The present invention relates to a device applied with a Scott Russell mechanism where a main arm member and a sub arm member are coupled to each other and a coupling angle therebetween is changeable, and particularly relates to a Scott Russell mechanism device that can attach units to the tip end side of the main arm member and change postures of the units variously. The Scott Russel mechanism converts linear motion in one direction to another direction. 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. Scott Russell Mechanism - acculasopa 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. Therefore, as for the application of the Scott Russell mechanism device according to the present . The Scott Russell mechanism device of, 18. 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. Priority claimed from JPPCT/JP2011/058124. If both ends are turned into sliding connections, you get a Trammel of Archimedes. 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. PATENTED CASE, Free format text: 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. These mechanisms are governed by Kinematics the study of geometry and motion. 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. One such example is Scott-Russell Mechanism as shown in the figure. 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 gripping unit is attached to the tip end side of the pivoting unit. Furthermore, Patent Document 4 discloses a Scott Russell mechanism applied to an industrial robot. Patent Document 1 discloses a Scott Russell mechanism applied to a industrial robot. 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. 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. 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. Haluck 2002). a pivoting unit having a pivoting part that is pivotable centering on an axis in parallel to the pivoting axis of the joint unit is coupled to the rotor of the rotation unit. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Straight-line Mechanisms - GeoGebra There are many mechanisms based on slider crank linkage which can generate exact straight lines for limited intervals. Moreover, Patent Document 3 discloses a Scott Russell mechanism applied to a drive structure of a feed arm. The resonant frequency was improved by embedding a Scott-Russell mechanism [ 31 ]. 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. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). 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. 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. Moreover, in the present invention, the gripping unit is attached to the tip end side of the pivoting unit. Therefore, the gripping (chucking) flexibly responding to the orientation of a workpiece as a gripping target can be performed by the rotor of the rotation unit of which the amount of the postural displacement is increased, and the Scott Russell mechanism device according to the present invention can suitably be used for the gripping application. 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. Further, Patent Document 2 discloses a Scott Russell mechanism applied to a positioning transport device. 10, 2015, Germany, 6 pages. Structure design of a new compliant gripper based on Scott-Russell 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. With the industrial robot according to Patent Document 1, both of the arm members are rotated (turned) about the screw shaft. 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. Scott Russell Inventions, Patents and Patent Applications - Justia The optimally-designed stage was fabricated by wire electrical discharge machining and tested to investigate its performance. The linkage is composed of two links. The use of flexure joints in the Scott Russell mechanism provides a number of advantages over traditional revolute joints, making it a valuable technology for use in space where maintenance is difficult and costly. IPTC (1) NACE (2) OTC (1) Date. Machines as simple as livers, machines such as James Watts steam engine and the industrial robots such as PUMA all are composed of mechanisms whether simple, complex or combination of many simple and complex mechanisms. 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. 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. 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. 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. The Project Gutenberg eBook of Kinematics Of Mechanisms From The Time 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. 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. 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. 6 Easy Ways to Support (Boost) Your Immune System Naturally Furthermore, Patent Document 4 discloses a Scott Russell mechanism applied to an industrial robot. 11. 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 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. 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. Although the PA has many advantages, its main drawback is the hysteresis phenomena, which arises from material polarization and molecule friction [2]. The Scott Russell mechanism device of, 19. 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. Application: Creates an approximate straight line if sliding along flat plane. The Scott-Russell mechanismThe structural application of flexure hinges in the SR amplifying mechanism is especially important to practically play an important role in the positioning stage and precision cutting. Owner name: A Scott Russell mechanism device pivotably couples a main arm member and a sub arm member to each other, as well as it pivotably couples a joint unit to a tip end part of the main arm member. In the present invention, the joint unit, the rotation unit, and the pivoting unit are coupled to each other in this order. 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 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. Conventionally, various kinds of devices using a Scott Russell mechanism exist. 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. Freemantle straight-line linkage from British Patent 2741, November 17, 1803. 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. A Scott Russell mechanism device, comprising: a sub arm member pivotably coupled to the main arm member by a coupling shaft; and. Campbell, Scott SPE Disciplines. Exact dimensions of scott russell mechanism - caqweoutlet wherein a rotation unit having a rotor is coupled to the pivoting member. Mechatronic System Using a Straight-Line Motion Mechanism for AGV 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. 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. Therefore, the gripping (chucking) flexibly responding to the orientation of a workpiece as a gripping target can be performed by the rotor of the rotation unit of which the amount of the postural displacement is increased, and the Scott Russell mechanism device according to the present invention can suitably be used for the gripping application. In the present invention, the joint unit, the rotation unit, and the pivoting unit are coupled to each other in this order. 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. 2- Approximate straight line mechanisms:- Modified . Patent Document 1 discloses a Scott Russell mechanism applied to an industrial robot. Application: used to connect intersecting shafts . It is evident from the figure that this mechanism is made up of isosceles triangles, AB, AC and AO2 are of equal lengths. Scott A. Russell has filed for patents to protect the following inventions. The SR mechanism in combination with a parallelogram mechanism enables. 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. ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SASAKI, HIROMICHI;SHIMIZU, MIKIO;ICHIKAWA, YASUNORI;REEL/FRAME:031303/0431, Free format text: 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. 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 commonly used displacement amplification compliant mechanism has plenty of categories of bridge-type mechanisms, lever mechanisms, Scott-Russell mechanisms, and many more (Xu and Li . Japanese Patent Office, International Search Report of PCT/JP2012/058634, Jun. cartesian coordinate type by rotating at least one arm, excluding the head movement itself, e.g. 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. 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 having the rotor is coupled to the joint unit.