Patent WO-2014051350-A1 (WO)
Title: Power connecting device
Inventor: LEE JONG EUN
IPC: F16D25/08
Filed: 2013-09-26
Abstract: The present invention relates to a power connecting device, and more particularly, to a power connecting device in which a power input shaft and a power output shaft are easily connected or disconnected through a conical frictional surface. The power connecting device of the present invention comprises: a housing (10) having side walls (11) standing upright at both sides thereof to form an internal space, and having a cover (12) for interconnecting the side walls (11); an input member (20) which has a first input terminal (21) connected to an engine output terminal of a power generating unit in the outside of the housing (10), and which has a power input shaft (22) that is shaft-connected to the first input terminal (21) and coupled to one side wall (11) through a bearing (B), and which has a first transmission gear (23) formed at the outer surface of the body extending from the input shaft (22) toward the inside of the housing (10), and which has a conical frictional surface (24) tapered inwardly from the front end of the input member (20); an output member (30) which has a first output terminal (31) connected to a transmission input terminal of a transmission in the outside of the housing (10), and which has a power output shaft (32) shaft-coupled to the first output terminal (31) and coupled to the other side wall (11) through a bearing (B), and which has a power input gear (33) formed inwardly from the front end of the body extending from the output shaft (32) toward the inside of the housing (10); a connection member (40) which is arranged coaxially with the input member (20) and the output member (30), and which has a conical frictional surface (41) tapered to the front end of the connection member (40) such that the frictional surface (41) can be fit to the frictional surface (24) of the input member (20), and which has a power output gear (42) formed at the rear end of the connection member (40) such that the gear (42) can be engaged with the power input gear (33) of the output member (30), and which has a second transmission gear (43) formed at the front outer surface of the connection member (40), the second transmission gear (43) being the same as the first transmission gear (23); a movable means (50) which is arranged along the outer surfaces of the input member (20) and the connection member (40), and which has a connection gear (51) formed therein to connect the first transmission gear (23) and the second transmission gear (43); a position holding means (60) which has an elastically movable ball (61) arranged at the contact surface of either the input member (20) or the connection member (40), and which has a holding groove (62) for insertion of the ball (61), the holding groove (62) being formed at the contact surface of the other corresponding to the ball (61); a first transport means (70) which is connected to the movable means (50), and which moves, when pressure is supplied, forwardly the movable means (50) placed at the second transmission gear (43) of the connection member (40) and enables the movable means (50) to engage with the first transmission gear (23) of the input member (20); and second transport means (71) which is connected to the output member (30), and which moves the connection member (40) forward and backward according to the supply of pressure such that the frictional surface (24) of the input member (20) and the frictional surface (41) of the connection member (40) are connected to each other or separated from each other.