Abstract:
A floor-concealed door closer includes a housing for holding a door closing mechanism having an axle, and a housing cover for mounting on the housing and supporting the axle. The housing cover has transverse sides provided with lateral projections, each lateral projection having a stiffening flange.
Abstract:
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.
Abstract:
The invention relates to an electrical or electromechanical hold-open device, particularly for doors, which is displaceable within a sliding rail, the sliding rail comprising a lower chamber and an upper chamber, a power supply unit being disposed in the upper chamber and a slide member with a holding mechanism and a retaining mechanism being disposed in the lower chamber. This measure is intended to provide an electrical or electromechanical hold-open device which, compared to prior art hold-open devices, is improved particularly with regard to the power supply.
Abstract:
A floor spring includes a housing for receiving a closing mechanism having a closing shaft. The closing shaft can support a door, and the housing has a region surrounding the closing shaft. The floor spring further includes a cover component for covering the region surrounding the closing shaft. The cover component has an essentially U-shaped base unit, and an insert which is insertable into the base unit.