# US 8,782,825 B2 · Sliding and expanding sofa and seat frame

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- Number: US 8,782,825 B2
- Document ID: US8782825B2
- Status: Granted
- Kind: B2
- Application number: 13/198,049
- Filed: 2011-08-04
- Published: 2013-02-07
- Granted: 2014-07-22
- Earliest claimed: 2011-08-04
- Applicants: Fausto Barbero Schimmelpfeng
- Inventors: Fausto Barbero Schimmelpfeng
- Web page: https://patentgrep.com/patent/US8782825B2

## CPC

- A47C 17/17: with coupled movement of back-rest and seat
- A47C: CHAIRS; SOFAS; BEDS

## Abstract

An extendable system for sofas and armchairs uses a moveable seat and moveable head piece to travel along a curved head piece and stationary base. Frame members of the moveable seat and stationary base use a system of rails, ruler guides, notches and other wood components to facilitate the fluid movement and safe locking of the moving and stationary components.

## Claims

### Claim 1

A sofa system, the system comprising:
a) a moving head piece, having six sides, the sides including a top surface and an inner surface with the inner surface attached to two or more connection strips and with the connection strips connected to;
b) a moving seat piece, the moving seat piece having six sides with a top edge side attached to the connection strips and with the moving seat piece having a bottom side having two or more voids and two or more pegs and the moving seat piece being connected to;
c) a moving foot base having six sides with a bottom side containing two or more wheels partially contained within voids of the moving foot base;
d) a stationary curved head piece comprising a sidewall with the sidewall comporting to a perpendicular curved section of the curved head piece and the stationary curved head piece connected to;
e) a stationary base;
f) wherein the moving foot base, moving seat piece and moving head piece travel along the stationary base and stationary curved head piece such that the moving head piece is in a vertical position when the moving foot base is placed adjacent to the stationary base; and wherein
g) the moving head piece is in a horizontal position when the moving foot base is moved away from the stationary base such that a void is created between the moving head piece and the moving seat piece.

### Claim 2 (depends on 1)

The sofa system of claim 1 wherein the moving head piece is in a horizontal position when a first void is created between the moving head piece and the moving seat piece and wherein a second void is created between the stationary base and moving foot base.

### Claim 3 (depends on 1)

The sofa system of claim 1 wherein the moving seat comprises frame components comprising two or more ruler rails;
a) the stationary base comprises frame components comprising;
b) one or more main rails with a cross-rail attaching the main rails; and
c) each main rail having a slope section with the slope section adjoining a flat rest stop and with the flat rest stop adjoining and being perpendicular to a vertical stop.

### Claim 4 (depends on 3)

The sofa system of claim 3 wherein the ruler rails comprise locking elements suitable for lodging into the slope section and rest stop section of a main rail.