Friction toys are driven by springs or a friction motor. This is a simple mechanism to propel toy model tin trains, cars, action figures, and other toys. The motor consists of a large flywheel which is connected to the drive wheels of the toy via a very low gear ratio, so that the flywheel revolves faster.
The drive spring of, for example, a friction-driven toy car is wound when the back wheels of the car are pushed backwards against a high-friction surface. Carpet, or even a wood floor, can work very well as a friction source, spinning the wheels backward and winding the spring. Glass or a wet surface work less well, failing to provide enough friction to move the wheels. In essence, the wheels and axle of a spring-driven friction toy car are being used in the same way as a winder for an old mechanical clock.
While many spring driven toys require a cog or series of cogs to change the direction of the force of the winder or the force of the spring, a simple friction toy car seldom needs any cogs. The axle serves as a spool to wind the spring; the backward friction rotates the axle to wind the spring. When the car is released, the spring unwinds again, spinning the axle forward and propelling the car. This use of a spring lacks elegance and control but is delightfully easy to understand.
What's your Friction worth in 2021? Here are some recently sold items.
|Marx Tin Litho Windup Doughboy Tank 1940s Toy||09/2021||C $107.19|
|Marx Toys Tin Tricky Taxi Wind Up Car Working No Key||09/2021||C $65.58|
|Japan Tin Windup W Robot||09/2021||C $239.61|
|Motorcycle Toy Early Chinese Attempt M I B Friction Tin||09/2021||C $27.10|
|Collectible Wind Up Musical Horse Carousel Sugar||09/2021||C $12.42|
|See all sold items on eBay for more prices||10/2021||C $-.--|