Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTRIC EXPANSION DEVICE FOR SOFA
Document Type and Number:
WIPO Patent Application WO/2020/177552
Kind Code:
A1
Abstract:
Disclosed is an electric expansion device for a sofa, the device comprising a base, a drive mechanism, and two expansion mechanisms located on two sides of the base, wherein the two expansion mechanisms are respectively rotatably connected to the base; the drive mechanism comprises a drive assembly and a sliding assembly; the drive assembly comprises an electric motor and a lead screw; the electric motor is rotatably connected to the base; an output shaft of the electric motor is connected to the lead screw; the sliding assembly comprises a sliding rail, a sliding member and a first connecting member; one end of the sliding rail is connected to the electric motor, and the other end of the sliding rail is suspended; the sliding member is mounted on the sliding rail; the middle of the first connecting member is rotatably connected to the sliding member, and two ends of the first connecting member are respectively connected to the two expansion mechanisms; the electric motor is used for driving the lead screw to rotate; the lead screw is used for driving the sliding member to reciprocate along the sliding rail; and the sliding member drives, by means of the first connecting member, the expansion mechanisms to expand or retract. The above-mentioned electric expansion device for a sofa can solve the problems of the existing electric expansion devices for a sofa, such as a complex structure, difficult installation, high costs, inconvenient operation, and complex requirements for a transmission structure.

Inventors:
LI XIAOHONG (CN)
CHEN JIAO (CN)
WU LINLIN (CN)
Application Number:
CN2020/076172
Publication Date:
September 10, 2020
Filing Date:
February 21, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
REMACRO MACHINERY & TECH WUJIANG CO LTD (CN)
International Classes:
A47C17/86; A47C17/04
Foreign References:
CN109924749A2019-06-25
CN108402746A2018-08-17
CN205612151U2016-10-05
CN105193120A2015-12-30
CN107041647A2017-08-15
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF: