Title:
CRANE HOOK
Document Type and Number:
WIPO Patent Application WO/2016/085067
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a crane hook comprising: a cage which couples left and right steel plates to a plurality of support rods positioned in the upper side and to a supporter positioned in the lower side so as to maintain a predetermined gap therebetween; a rotary support plate which is coupled to the lower surface of the supporter so as to be closely adhered thereto; a column which transpierces the supporter and the rotary support plate and is accommodated in the cage, and which has a flange formed in the upper end thereof and a hook formed integrally in the lower end thereof; a spring case which is provided such that the upper end thereof is hung on the flange and the lower end thereof is spaced apart from the supporter by a predetermined distance; a compressive coil spring which is extrapolated on the outer circumferential surface of the column so as to be positioned between the spring case and the column, and which is formed such that the upper end thereof is supported on a hooking protrusion of the spring case and the lower end thereof is supported on the upper surface of the supporter; and a locking stand which is provided with a spiral spring on the shaft thereof so that an elastic force is applied toward the outside of the hook, wherein the locking stand has a pair of rotary guide stands which are formed to be rounded and which are configured so as to be supported on the lower surface of the rotary support plate. The locking stand, which is formed in an opening part of the hook according to the hauling of a crane, closes the opening part, and when a wire hung on the hook is released, opens the opening part by means of elastic force, whereby a wire can be easily hung on and pulled off the hook, and the work of hanging the wire on the hook can be performed by only a single person, and thus a reduction in human resources can be expected. Furthermore, the present invention is very useful because both hands of a worker can be free to secure safety, thereby preventing safety-related accidents due to falling.
Inventors:
SONG CHANG-WHAN (KR)
Application Number:
PCT/KR2015/005168
Publication Date:
June 02, 2016
Filing Date:
May 22, 2015
Export Citation:
Assignee:
HANWOOL SPECIAL INDUSTRY CO LTD (KR)
International Classes:
B66C1/36
Domestic Patent References:
| WO2012047112A2 | 2012-04-12 |
Foreign References:
| JP2011093690A | 2011-05-12 | |||
| KR200260903Y1 | 2002-06-21 | |||
| US5178427A | 1993-01-12 |
Attorney, Agent or Firm:
LEE, YOUNG SU (KR)
이영수 (KR)
이영수 (KR)
Download PDF: