公开(公告)号：US09410352B2

公开(公告)日：2016-08-09

申请号：US14649031

申请日：2013-12-02

申请人： DAWON SDS CO., LTD

发明人： Joungwoo Lee ,  Jaebok Kang

IPC分类号： E05F1/10 ,  E05F3/10

CPC分类号： E05F3/102 ,  E05F1/105 ,  E05F3/104 ,  E05Y2800/22 ,  Y10T16/2769 ,  Y10T16/293 ,  Y10T16/299

摘要： Disclosed is a door closer provided with a unit for adding door-closing force inside a housing. The disclosed door closer comprises a force-adding unit, which is included inside the housing, for adding the door-closing force. The force-adding unit comprises a cam which coaxially rotates with a link shaft inside the housing, and a cam pusher which is elastically compressed so as to come into close contact with the outer circumferential surface of the cam. The outer circumferential surface of the cam comprises an arc surface portion which is separated apart from a rotary axis of the cam at an equal distance, a concave surface portion which is separated apart from the rotary axis of the cam at a distance shorter than that to the arc surface portion, and one pair of protruding corner portions for connecting the arc surface portion and the concave surface portion. When the outer circumferential surface of the cam with which the cam pusher comes into close contact is converted from the arc surface portion to the concave surface portion due to the rotation of the cam, the rotational force of the link shaft is increased due to the elastic pressing force of the cam pusher.

摘要翻译： 公开了一种具有用于在壳体内增加门关闭力的单元的门关闭装置。 所公开的门关闭装置包括一个包含在壳体内的加力单元，用于增加门关闭力。 加力单元包括与壳体内的连杆轴同轴旋转的凸轮和弹性压缩以便与凸轮的外周面紧密接触的凸轮推动器。 凸轮的外圆周表面包括弧形表面部分，该弧形表面部分以相等的距离与凸轮的旋转轴线分开，凹面部分与凸轮的旋转轴线分开，距离短于 弧面部以及用于连接弧面部和凹面部的一对突出角部。 当凸轮推动器紧密接触的凸轮的外圆周表面由于凸轮的旋转而从弧面部分转换为凹面部分时，由于弹性，连杆轴的旋转力增加 凸轮推动器的按压力。

公开(公告)号：US09410353B2

公开(公告)日：2016-08-09

申请号：US14649043

申请日：2013-12-03

申请人： DAWON SDS CO., LTD

发明人： Joungwoo Lee ,  Jaebok Kang

IPC分类号： E05F1/10 ,  E05F3/10

CPC分类号： E05F3/102 ,  E05F1/1008 ,  E05Y2800/264 ,  E05Y2800/73 ,  Y10T16/2766 ,  Y10T16/293

摘要： Disclosed is a door closer of which the inside of a housing is made compact and thus is easily made smaller. The disclosed door closer is comprised so that movement of one end of a coil spring, which is relatively close to a link shaft, toward the link shaft inside of the housing is limited, and the other end of the coil spring, which is relatively far from the link shaft, moves toward the link shaft by being pushed by a piston base portion, thereby compressing the coil spring.

摘要翻译： 公开了一种闭门器，其中壳体的内部被制造得紧凑并因此容易地变小。 所公开的闭门器包括使得相对靠近连杆轴的螺旋弹簧的一端朝向壳体内的连杆轴的移动受到限制，螺旋弹簧的另一端相对较远 从连杆轴通过被活塞基部推动而向连杆轴移动，从而压缩螺旋弹簧。