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1. (WO2018042319) ELECTRIC HOUSING DEVICE HAVING ADJUSTABLE SPAN

Pub. No.:    WO/2018/042319    International Application No.:    PCT/IB2017/055167
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 30 01:59:59 CEST 2017
IPC: A47H 1/08
A47H 5/02
Applicants: PANG, Kak San
彭革新
Inventors: PANG, Kak San
彭革新
KWOK, Tzi Lai Ernest
郭子礼
Title: ELECTRIC HOUSING DEVICE HAVING ADJUSTABLE SPAN
Abstract:
An electric housing device having an adjustable span, said device comprising a main body portion (1), a winding cord (3), and a first moving part (2a) and a second moving part (2b) close to two ends of the main body portion (1). The main body portion (1) is provided with a driving device (4), and the bottom of the main body portion (1) is provided with two parallel slide rails (6) which slide along the length direction of the main body portion (1), the two slide rails (6) respectively extending towards the first moving part (2a) and the second moving part (2b) and fixing to the bottom of the corresponding moving part. The main body portion (1) and the first moving part (2a) and the main body portion (1) and the second moving part (2b) are respectively provided with through grooves (10) corresponding to the two slide rails (6), each through groove (10) is located on the outside of the corresponding slide rail (6), each slide rail (6) is slidingly provided with a central running pulley (7), and the top of each central running pulley (7) extends out from within the corresponding through groove (10). When the central running pulleys (7) slide on the slide rails (6), the tops of the central running pulleys (7) move along the through grooves (10), and the winding cord (3) revolves around the driving device (4), the main body portion (1), the first moving part (2a) and the second moving part (2b), so as to be wound on the driving device (4). The top ends of the central running pulleys (7) are fixed to the winding cord (3). The device is adjustable in terms of span, widely applicable and light in weight.