The invention relates to a single-plate water heating radiator comprising a finned convection plate and end plates.

Today it is customary to provide the ends of water hea-fcing radiators with end plates. With single- plate heating radiators, however, such end plates are difficult to fix; in prior art structures, the end plate is fixed e.g. by means of screws to the convec¬ tion plate, or by means of separate fasteners which are attached at a suitable point in the radiator. For this reason, the provision of end plates in radiators is unreasonably time-consuming and rises costs. In most cases, the end result is nevertheless less satisfactory as far as the appearance or the detach¬ ment and re-attachment are concerned.

The object of the present invention is to eliminate the problems described above. This object is achieved by means of a water heating radiator of the invention, which is characterized in that the end plate is attached to the radiator with a snap coupling, whereby the end plate grips the end of a radiator body and one fin of the convection plate in a pincerlike manner.

The invention is based on the idea of locking the end plate to the radiator by means of the shape of these parts without any separate fastening means by utilizing the flexibility of the end plate and to some extent also that of the convection plate. In this way, .the "fastening means" can be formed easily in the end plate at the manufacturing stage. The end plate can be attached to the radiator and detached from it in a moment. In addition, the attachment is reliable and outwardly invisible.

In the following the invention will be described in greater detail by means of a preferred embodiment with reference to the attached drawing, in which Figure 1 is a perspective diagonal back view of a water heating radiator of the invention;

Figure 2 is a top view of one corner of the radiator of Figure 1; and

Figure 3 is a perspective view of the end plate of Figures 1 and 2 when detached.

The water heating radiator shown in the drawing comprises a radiator body 1; a convection plate 2 to the back surface of which fins 3 are attached; end plates 4 at the ends of the radiator; and a conven- tional protective grating 5 positioned upon the radiator between the end plates 4. The end plate 4 is attached to the radiator with a snap coupling so that it grips the end of the radiator body 1 and one fin 3 of the convection plate 2 in a pincerlike manner. The snap coupling appears from Figure 2 in par¬ ticular and the structure of the convection plate enabling the snap coupling appears from Figure 3. In this specific case, the edge of a section 6 of the end plate 4 bearing on the fin 3 of the convection plate 2 forms a bend 7 which - when the radiator is viewed in the direction A of Figure 1 - extends be¬ hind the first fin 3 of the convection plate 2. Tongues 8 project from the section 6 in such a manner that they - as viewed in the above-mentioned direction - are pressed against the front side of the first fin 3 of the convection plate 2. As the other edge of the end plate 4 bears on the end of the radiator body 1 by means of another bend 10, the bend 6 and the tongues 8 together with the fin 3 form a snap coupling when the section 6 of the end plate 4

is pushed on the fin 3 and strained.

The upper edges of the two end plates 4 further comprise bends 11 which keep the protective grating 5 in position between the end plates 4. Holes 9 in the end plate 4 are intended for the water connections of the radiator.

The drawings and the description related to it only describe one preferred embodiment of the inven¬ tion. The snap coupling at the fin of the convection plate can be realized in various other ways, such as by means of a longitudinal groove or recesses formed in the fin and projections formed in the end plate and extending into the groove or recesses.