| 摘要 |
A floor-concealed door closer includes a housing for receiving a door closing mechanism, and a housing cover suitable to be mounted on the housing. The housing cover has a receiving groove on its inside surface facing the housing for receiving a seal. In order to mount the housing cover on the housing with fewer screws than in previous models while maintaining the impermeability between the housing and the housing cover, the depth of the receiving groove varies over its length. |
