公开(公告)号：US20150345202A1

公开(公告)日：2015-12-03

申请号：US14760164

申请日：2013-11-15

Applicant: RYOBI LTD.

Inventor： Tomohiro NAKAMAE

IPC: E05F3/10 ,  E05F1/08

CPC classification number: E05F3/10 ,  E05F1/08 ,  E05F1/105 ,  E05F3/104 ,  E05F3/225 ,  E05Y2201/492 ,  Y10T16/2766

Abstract: Disclosed is a door closer that can easily adjust the spring force of a return spring. A piston 2 moves toward a first oil chamber 15 upon a door opening operation and moves toward a second oil chamber 16 upon a door closing operation. A return spring 50 is located on the same line as the piston 2. The return spring 50 is interposed between a spring retaining seat on a fixed side close to a main shaft 3 and a spring retaining seat on a moving side distant from the main shaft 3. The return spring 50 is compressed by the spring retaining seat on the moving side moving closer to the spring retaining seat on the fixed side upon the door opening operation and then stores the closing force. The door closer includes a spring force adjustment mechanism configured to change the position of a spring retaining member 40, which has the spring retaining seat on the fixed side, in the axial direction of the piston 2 with respect to the main body housing 1, and configured to adjust the spring force of the return spring 50 by changing the position of the spring retaining member 40 through an operation from the outside of the main body housing 1.

Abstract translation: 公开了一种能够容易地调节复位弹簧的弹簧力的门关闭器。 活塞2在门打开操作时朝着第一油室15移动，并且在关门操作时朝向第二油室16移动。 复位弹簧50位于与活塞2相同的直线上。复位弹簧50插入在靠近主轴3的固定侧上的弹簧保持座和远离主轴的移动侧的弹簧保持座 在门打开操作时，复位弹簧50被移动侧的弹簧保持座压靠在固定侧的弹簧保持座上，然后存储关闭力。 门关闭器包括：弹簧力调节机构，其构造成相对于主体壳体1改变在活塞2的轴向方向上具有固定侧的弹簧保持座的弹簧保持构件40的位置，以及 构造成通过从主体壳体1的外部通过操作改变弹簧保持构件40的位置来调节复位弹簧50的弹簧力。