Background Art Prior-art glazings of this type provide, when the frames are located in the closed position, an unaesthetic and unwieldy visual impression when looking at the glaz- ing from outside, in particular when looked at in a direction obliquely backwards with respect to said one moving direction. When looking at the glazing in this way, the two frame sectional elements located essential- ly opposite to each other, i. e. the front frame sectional element of one frame and the rear frame sectional element of the other frame, clearly stand out as two separate frame sectional elements, which, as mentioned, provides an unwieldy visual impression. In the known glazings, the frame sectional elements also provide shadows which addi- tionally strengthen this visual impression.

Summary of the Invention An object of the present invention is to provide a glazing, in which this drawback is eliminated or at least considerably reduced.

According to the present invention, this object is achieved by a glazing, which is of the type stated by way of introduction and characterised in that said one frame is arranged outside said other frame, that the front frame sectional element of said one frame has a front first surface portion which extends, with respect to said one moving direction, obliquely forward, inwards to the path of said other frame, that the rear frame sectional element of said other frame has a front second surface portion which extends, with respect to said one moving direction, obliquely backward, outwards to the path of said one frame, and that the first surface portion and the second surface portion essentially continuously pass into each other, when the two frames are located in the closed position.

The first surface portion and the second surface portion preferably have a concave shape.

In a preferred embodiment, the front frame sectional element of said one frame has a first engaging means and the rear frame sectional element of said other frame has a second engaging means which is arranged to engage the first engaging means when the two frames are located in the closed position. The engaging means are suitably designed to allow, when the two frames are located in the closed position, that said one frame is moved relative to said other frame in said one moving direction, but pre- vent it from being moved relative to said other frame in the opposite direction.

Brief Description of the Drawings The invention will now be described in more detail with reference to the accompanying drawings.

Fig. 1 is a front view and shows a balcony glazing according to the present invention.

Fig. 2 is a sectional view along line II-II in Fig. 1, glass doors included in the glazing being shown in a closed position.

Fig. 3 is a sectional view corresponding to Fig. 2, but shows the glass doors in a fully open position.

Fig. 4 shows a glass door in a vertical section along line IV-IV in Fig. 2.

Description of a Preferred Embodiment The glazing shown in Fig. 1 is arranged at the front side of one of a plurality of balconies arranged one above the other. The balcony glazing is arranged on a supporting stand 1, which is mounted between a lower balcony slab and, arranged straight above the same, an upper balcony slab. The supporting stand 1 has an upper horizontal frame part 2, a lower horizontal frame part 3 and two vertical frame parts 4 and 5. The frame parts 2-5 are made of aluminium sections. The horizontal frame parts 2 and 3 constitute guide rails and carry between them a plurality-in the shown example three-juxta- posed vertical glass doors 6,7 and 8 which are lateral- ly movable. The vertical frame parts 4 and 5 extend down- wards past the lower horizontal frame part 3 and rest on the lower balcony slab. Cover plates 9, which form part of a balcony parapet, are supported between the vertical frame parts 4 and 5 under the lower horizontal frame part 3.

Each glass door 6,7 and 8 consists of a rectangular glass pane 10,11 and 12, a rectangular inner frame 13, 14 and 15, in which the glass pane is mounted, and a rec- tangular outer frame 16, 17 and 18, in which the inner frame is pivotally mounted on a vertical pivot pin 19, 20 and 21. The frames 13-18 are made of aluminium sectional elements.

The outer frames 16-18 and, thus, the glass doors 6-8 as a whole are movable back and forth each along a rectilinear path 16', 17', 18'which is only schemati- cally shown in Figs 2 and 3. The moving paths 16'-18' of the outer frames 16-18 extend parallel to and adja- cent to each other along the entire length of the hori- zontal frame parts 2 and 3 and are defined by grooves

(not shown) which are formed in the underside of the upper frame part 2 and the upper side of the lower frame part 3. The outer frames 16-18 are mounted and guided in their grooves in the horizontal frame parts 2 and 3 in a known manner which is here not described in more detail.

Each glass door 6,7 and 8 is movable between a first end position, in which it is located close to the vertical frame part 5 of the supporting stand 1, which frame part is shown to the right in Figs 1-3, i. e. to the right seen from outside, which end position is shown for the three glass doors in Fig. 3, and a corresponding second end position adjacent to the vertical frame part 4 of the supporting stand 1, which frame part is shown to the left in Figs 1-3, i. e. to the left seen from outside.

Each glass door 6,7 and 8 is movable in a first direc- tion P1 away from the first end position to the second end position and in the direction P2 opposite to said first direction.

Each outer frame 16,17 and 18 has a vertical, seen in the first moving direction P1 front, frame sectional element 16a, 17a and 18a and a vertical, seen in the same moving direction P1 rear, frame sectional element 16b, 17b and 18b. As is evident, the front and rear frame sec- tional elements 16a and 18b of the outer frames 16 and 18 are identical (although mirror-inverted), the rear frame sectional elements 16b and 17b of the outer frames 16 and 17 are identical, and the front frame sectional elements 17a and 18a of the outer frames 17 and 18 are identical.

In the first end position (Fig. 3), the rear frame sectional element 18b of the outer frame 18 is received in the right vertical frame part 5 of the supporting stand 1 and abuts against a rubber strip 22 arranged therein, the outer frame 17, which in this end position is slightly moved to the left relative to the outer frame 18, however essentially covering this outer frame, and the outer frame 16, which in this end position is in turn slightly moved to the left relative to the outer frame

17, however essentially covering this outer frame. As is evident from Fig. 3, the outer frame 16 and its groove (16') are located at the very inside, and the outer frame 18 and its groove (18') are located at the very outside, with respect to the inside and outside of the glazing.

In the second end position, which corresponds to the position in which the entire"packet"of glass doors 6-8 is moved so far to the left, i. e. in the first moving direction Pl, that the front frame sectional element 16a of the outer frame 16 is received in the left vertical frame part 4 of the supporting stand 1 and abuts against a rubber strip 22'arranged therein.

In each of the two end positions, the outer frames 16-18 are located in a position which is defined as fully open. Fully open also relates to each intermediate posi- tion in which the outer frames 16-18 can be located during the movement of said"packet"between the end positions, i. e. each position where the three glass doors 6-8 essentially fully overlap each other in the manner shown in Fig. 3. The outer frames 16-18 are more or less arbitrarily movable back and forth relative to each other. In each moving position where two outer frames 16, 17 and 17,18, which are movable in juxtaposed grooves, are located essentially opposite to each other, as in the end positions, they are located in a position defined as an open position. In each moving position where the outer frames 16,17 of an inner pair and 17,18 of an outer pair, which are movable in juxtaposed grooves, are locat- ed in such a position relative to each other that in such a pair the front frame sectional element 17a, 18a of the outer frame 17,18 is located essentially opposite to the rear frame sectional element 16b, 17b of the inner outer frame 16,17, they are located in a position defined as a closed position. When the two pairs of outer frames 16, 17 and 17,18 are located in the closed position, as shown in Figs 1 and 2, the glass doors 6-8 cover the entire front side of the balcony. In Figs 1 and 2, the

outer frames 16-18 are located in a position defined as a fully closed position.

The front frame sectional element 17a and 18a of the outer frame 17,18, positioned at the very outside, in each pair of outer frames 16,17 and 17,18, has in its front part a first surface portion 23a, 24a which extends, with respect to the first moving direction P1, obliquely forward, inwards to the path 16', 17'or the groove of the outer frame 16,17, located at the very inside, in the pair. The rear frame sectional element 16b and 17b of the outer frame 16,18, located at the very inside, in each pair of outer frames 16,17 and 17, 18 has in its front part a second surface portion 23b, 24b which extends with respect to the first moving direc- tion PI obliquely backward, outwards to the path 17', 18' or the groove of the outer frame 17,18, located at the very outside, in the pair. Both the first surface portion 23a, 24a and the second surface portion 23b, 24b have a slightly curved concave shape. The surface portions 23a and 23b on the one hand and the surface portions 24a and 24b on the other hand essentially continuously pass into each other when the outer frames 16,17 and 17,18 are located in the closed position (Fig. 2). Owing to this arrangement, the two frame sectional elements 16b and 17a, which are located essentially opposite to each other in the closed position, in one pair of outer frames 16, 17, and the two frame sectional elements 17b and 18a, which are located essentially opposite to each other in the closed position, in the other pair of outer frames 17,18, stand out as a single frame sectional element which provides a considerably sleeker visual impression than the frame sectional elements of the known balcony glazings described by way of introduction.

Each of the two front frame sectional elements 17a and 18a has in its front part a hook-shaped first engag- ing means 25a, 26a, and each of the rear frame sectional elements 16b and 17b has in its front part a hook-shaped

second engaging means 25b, 26b. The two engaging means 25a and 25b are hooked into each other in such a manner that, when the outer frames 16 and 17 are located in the closed position (Fig. 2), they allow the outer frame 17 to be moved relative to the outer frame 16 in the moving direction Pl but prevent it from being moved relative to the outer frame 16 in the opposite moving direction P2.

In the same manner, the two engaging means 26a and 26b are hooked into each other in such a manner that, when the outer frames 17 and 18 are located in the closed position (Fig. 2), they allow the outer frame 18 to be moved relative to the outer frame 17 in the moving direc- tion P1 but prevent it from being moved relative to the outer frame 17 in the opposite moving direction P2.

The invention can be modified in various ways within the scope of the appended claims.