| 摘要 |
A device in infrared radiating electrical heating aggregates, particularly building dryers for hardening of concrete and the like. The object is to provide a light infrared heater which with a simple manipulation can be adjusted in different rotational positions, and which despite its low weight has a stable construction, rugged and withstands the very hard treatment of the building work places. These objects have been achieved by the fact that the housing (11) comprises a self-supporting, trough-shaped plate box, with ridge-shaped bosses (13) extending in the longitudinal direction of the box in the bottom thereto, that the box at both ends is provided with a substantially perpendicularly to and over an essential part of the box bottom extending fixed regulating disc (14), and that the regulating discs (14) are provided with a common centre of rotation (19) about which the housing (11) is rotatable with respect to frame gables (15, 16) arranged outside the ends of the housing and lockable to said frame gables in different rotational positions. |
