Music box
US5448006A · kind A · utility
Inventor
Key dates
| Filing date | Jan 9, 1995 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Jan 9, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10F1/06
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A music box including a base, a frame mounted on the base, a motor mounted on the frame, a drum installed on the base and including a cylinder provided with a plurality of protuberances, a gear having a recess, a plurality of fixing members on the recess and a square hole at a center of the gear, and a seat having a plurality of portions between every two of which there is a slot and each of which has a hook portion, one end of the cylinder being engaged between the fixing members and an inner edge of said gear, the seat being inserted into another end of the cylinder, a horizontal output shaft being formed at one end with a square portion and a plurality of knots close to the square portion, the horizontal output shaft being partially inserted into the cylinder through the seat with the square portion and knot engaged with the square hole of the gear and the hook portion of the seat respectively, and a vertical output shaft provided at a lower end with a cog meshed with the gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.