This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). 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. One of the ends is then connected to something that can generate linear motion, such as a rolling or sliding connection, or another straight line mechanism. 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. 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. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints.
New Structural Design of a Compliant Gripper Based on the Scott-Russell It converts linear motion, to linear motion in a line roughly perpendicular to the input. A Scott Russell linkage is a linkage which translates linear motion through a right angle. Here is a sampling of five herbs that have demonstrated potential immune support benefits: 1.
The Project Gutenberg eBook of Kinematics Of Mechanisms From The Time 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. 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. 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. 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. 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, 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. Therefore, the application of the Scott Russell mechanism device according to the present invention expands. Therefore, the gripping unit can be pivoted proximally to the workpiece which is the gripping target, and the Scott Russell mechanism device including a gripping function suitable for such a gripping application can be provided. 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. 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.
Scott_Russell_Straight_Line_Generator / www.inventhp.com The requirements of the design are identified and the modelling phases of the mechanism are described.
Flexural Mechanisms for Space Applications | by Hilaal Alam | Jan, 2023 4. 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. 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. an angle changer for changing a coupling angle between the main arm member and the sub arm member, wherein a joint unit is pivotably coupled to the tip end part of the main arm member, and, wherein a pivoting axis of the pivot of the joint unit is in parallel to an axis of the pivots of the main arm member and the sub arm member at the coupling position, and, a pivoting mechanism unit for automatically pivoting the joint unit cooperating with the angle change by the angle changer; and. If both ends are turned into sliding connections, you get a Trammel of Archimedes. 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. a sub arm member pivotably coupled to the main arm member; and. for multi-joint type robot, Gravitation balancing device, articulated robot, and wrist device for robot, Manipulator with flat or three-dimensional trajectory suitable for high operating rate, Mechanical arm with a 2 freedom-degree wrist attitude regulation mechanism, Exhaust gas purification catalyst and method for producing the same, Motor-driven device for moving workpieces, Pick and place device having two parallel axes, Scara type robot with counterbalanced arms, Manipulator, manufacturing machine and production line using the same. Patent Document 1 discloses a Scott Russell mechanism applied to an industrial robot. PATENTED CASE, Free format text: 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. Fundamentals of Modern Manufacturing - Mikell P. Groover 1996-01-15 This book takes a modern, all-inclusive look at manufacturing . 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. 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. This mechanism can generate an exact straight line if the link dimensions are correct. Earlier than January, 2018 (2)
Scott Russell's Mechanism - Special Mechanism - YouTube PDF Review Article on Displacement and Force Compliant Mechanism Amplifier wherein a pivoting axis of the pivot of the joint unit is in parallel to an axis of the pivots of the main arm member and the sub arm member at the coupling position, and. 3.
PDF (12) United States Patent (10) Patent No.: US 9,505,138 B2 Sasaki et al 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. 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 first exact straight line generating mechanism was invented by a French army officer Charles Nicolas Peaucellier in 1864.
Scott Russell linkage - Wikipedia Based on the geometry of the linkage the output motion is a simple sine function of the drive link or a simple harmonic motion. Moreover, the pivot driving unit is provided at any portion from the coupling position to the tip end side of the main arm member. Grasshopper Mechanism: This mechanism is a modification of the Scott-Russell Mechanism. Peaucellier linkage can convert an input circular motion to the exact straight line motion. The present invention can suitably be used for, for example, the gripping application, placing application, transportation application in which it is requested to bring the tip end part of the main arm member close to right beside the base end part of the sub arm member. mechanism of machinery straight and parallel line mechanism table of contents straight line mechanism introduction history different mechanism used for
Linkage (mechanical) - Wikipedia Perfect straight lines can also be generated using a linkage mechanism. Although the PA has many advantages, its main drawback is the hysteresis phenomena, which arises from material polarization and molecule friction [2]. 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. for multi-joint type robot, Gravitation balancing device, articulated robot, and wrist device for robot, IMPROVEMENTS ON PLANE MANIPULATORS WITH FROZEN OR PROGRAMMABLE TRAVEL AT VERY HIGH RATES, Mechanical arm with a 2 freedom-degree wrist attitude regulation mechanism, Exhaust gas purification catalyst and method for producing the same, Motor driven articulated arm with cable capstan including a brake, Robot arm, robot, and robot operation method. wherein an axis of the pivot of the pivoting member is in parallel to the pivoting axis of the joint unit, and.
Robotics and Computer-Integrated Manufacturing A Scott Russell mechanism device, comprising: a sub arm member pivotably coupled to the main arm member by a coupling shaft; and. [1] . In the present invention, the joint unit, the rotation unit, and the pivoting unit are coupled to each other in this order. The Scott Russel mechanism converts linear motion in one direction to another direction. 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. Debates (Hansard) No. Scott Russell has filed for patents to protect the following inventions. [1] [2] This paper presents the structural design and analysis of a novel compliant gripper based on the Scott-Russell (SR) mechanism. Part of the Lecture Notes in Electrical Engineering book series (LNEE,volume 505) Abstract This paper describes the design of an exact straight line motion mechanism, commonly known as a Scott-Russell mechanism (SRM), for industrial application.