| 摘要 |
<p>A coupler for toy and model railway cars includes a pivotable coupler member having a coupler knuckle to engage a complementary knuckle on an adjacent car. The coupler member is mounted on support means for pivoting in a vertical plane between a lower position substantially parallel to a trackway and an upper position. The coupler member is normally maintained in the lower coupling position by means of the magnetic attraction existing between two permanent magnets secured, respectively, to the coupler member and to the support means. Cars may be uncoupled by providing a pole of an uncoupling magnet on the trackway to attract at least one pole of the coupler member magnet to torque the knuckle to the upper position and thereby uncouple adjacent cars. The coupler knuckle includes a projection formed on its lower side which is adapted to engage and hold the adjacent complementary coupler knuckle when cars are being pulled in a normal running mode to prevent the knuckles from unintentionally disengaging when coupled cars pass over the uncoupling magnet. The coupler member also includes an inclined ramp surface formed on the lower surface of a support shaft. When a coupler member is in its upper position the inclined ramp surface is adapted to contact the fore end of the complementary knuckle to permit one car to push an adjacent car without the cars being coupled to one another. Cars may be pushed to a desired location such as a track siding, and left by the pushing car without reengagement or recoupling of the coupler knuckles.</p> |
