Title:
HAND LIFT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/235692
Kind Code:
A1
Abstract:
A hand lift device according to an embodiment of the present invention comprises: a frame portion comprising a vertical frame, a first sprocket installed on the upper end of the vertical frame, and a second sprocket installed on the lower end of the vertical frame; a chain installed so as to engage with the first sprocket and the second sprocket; a cargo loading unit connected to the chain, arranged to be able to move upward/downward along the vertical frame, and configured such that cargo is loaded thereon; a power transfer portion for providing the chain with driving power such that the cargo loading unit moves upward/downward; a sensor portion installed to be positioned above the range in which the cargo loading unit moves upward/downward, among the area formed by the frame portion, the sensor portion comprising a proximity sensor so as to sense cargo loaded on the cargo loading unit; and a control portion for adjusting the driving of the power transfer portion according to a sensing signal from the sensor portion, thereby controlling the upward/downward movement of the cargo loading unit. According to an embodiment of the present invention, operators can automatically load cargo while controlling same through the cargo loading unit, instead of loading cargo through manual operations, such that faster operations are possible than in the case of manual operations, a larger amount of cargo can be loaded per the same period of time, and the cost can be reduced because operations can be handled by a smaller number of personnel.
Inventors:
PARK SANG UK (KR)
Application Number:
PCT/KR2018/011174
Publication Date:
December 12, 2019
Filing Date:
September 20, 2018
Export Citation:
Assignee:
PARK SANG UK (KR)
International Classes:
B66F9/075; B66F9/18; B66F9/20; B66F9/24
Foreign References:
| JP2004009926A | 2004-01-15 | |||
| JPH0524795A | 1993-02-02 | |||
| JP2005089020A | 2005-04-07 | |||
| KR20130058486A | 2013-06-04 | |||
| JP2008156039A | 2008-07-10 | |||
| JP2012201432A | 2012-10-22 | |||
| KR20170112079A | 2017-10-12 | |||
| JPH05270798A | 1993-10-19 | |||
| KR101798896B1 | 2017-11-17 |
Attorney, Agent or Firm:
INVENSYNC INTELLECTUAL PROPERTY GROUP (KR)
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