Actions

Class 1 Lever

From DT Online

MechanismsClass1Lever.jpg


Description

This is the most common type of lever. With a Class 1 Lever the fulcrum is in the middle, like a see-saw. The effort is on one side and the load is on the other.


Features and Uses

Common examples of Class 1 Levers include: a crowbar, scissors, pincers, tinsnips, many push-bike brake levers and calipers and balance type weighing scales.


Animations
Parallel Jaw Pliers - two back pins slide in the slots and to get parallel clamping surfaces of the jaws:
  • For each jaw, distances to clamping surface from center line of the slot and from center of the hole are equal.
  • Centre distances of the holes on the handle are equal.

(the red springs tend to move the jaws apart from each other).

DT Online Buyers' Guide
  • Simple Frames and Linkages can be explored using Construction Kits such as those listed below.


Click top left to enlarge

Viga Wooden Construction Set (53-Piece) Straws and Connectors, 705/pkg - build complex structures! Educational Toys Construction Engineering Blocks By ETI Toys for Boys and Girls 85 Piece Set for Building Endless Combinations! Great for Learning & Having Fun Build Your Imagination Today! K'Nex Education Kid Group Set Engino Education Design and Technology Master Construction Set LEGO Education DUPLO Tech Machines Set LEGO® Education WeDo 2.0 Core Set Meccano Set 1 Easy Construction Box Meccano 25 Model Set Fischertechnik Universal 3 Building Kit
Viga Wooden Construction Set (53-Piece) Straws and Connectors, 705/pkg - build complex structures! Construction Engineering Blocks 85 Piece Set K'Nex Education Kid Group Set Engino Education D&T Construction Set LEGO Education DUPLO Tech Machines Set LEGO® Education WeDo 2.0 Core Set Meccano Set 1 Easy Construction Box Meccano 25 Model Set Fischertechnik Universal 3 Building Kit