Toy actuation system
US4998903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1985 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jul 8, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63H31/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
For simulating hydromechanical actuation of components in a toy model such as a toy excavator having legs and a shovel, means for exclusively mechanical power transmission are provided. These means include actuating units comprising each a cylinder casing and a piston rod slidably arranged therein and displaceable by a threaded spindle in engagement with the piston rod. Rotary motion is transmitted to the threaded spindle by a flexible shaft having plug-in connectors at both ends secured to a core and a protective hose of the flexible shaft. Each flexible shaft is connected with a driving unit installed in the toy model and releasably connected with a rotary power source such as handwheel or an electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.