	US 7,580,726 B2
	Dual level slide mechanism for extendible device housings
Esa-Sakari Maatta, Viiala (Finland); Tomas Ivaskevicius, Helsinki (Finland); Mikko Ukonaho, Nokia (Finland); and Anssi Vanska, Helsinki (Finland)
Assigned to Nokia Corporation, Espoo (Finland)
Filed on Apr. 18, 2006, as Appl. No. 11/405,755.
Prior Publication US 2007/0243897 A1, Oct. 18, 2007
Int. Cl. H04M 1/00 (2006.01)

U.S. Cl. 455—550.1 [455/90.3; 455/566; 455/575.1; 455/575.4; 455/557]

17 Claims

1. Extendible mobile electronic device, comprising

a device housing having

at least a first housing element, which comprises a first front surface and a first rear surface, and

a second housing element, which comprises a second front surface and a second rear surface,

and

one or more level slide mechanisms, each of which comprising

first and second frame elements each having a guideway element, and

first and second lever elements, one end of each engaging pivotably with one of said first and second frame elements and the other end of each engaging pivotably and slidably with said guideway element of the other one of said first and second frame elements;

wherein said first frame element is provided for being attached to one of said first and second housing elements and said second frame element is provided for being attached to the other one of said first and second housing elements;

wherein said first housing element and said second housing element are extensibly supported by said level slide mechanisms to each other, such that said first and second housing elements can adopt a retracted configuration and an extended configuration with respect to each other.