The invention relates to a stove having a combustion chamber and an inlet opening, which inlet opening can be closed by a door.

It has for years been common to provide stoves with one or more hinged doors. It is also common to provide the door with a transparent glass portion to make it possible to the user to enjoy the look of flames in the stove and at the same time be able to control the air supply to the combustion process within the stove.

To be able to place logs of wood or other suitable combustible items of a certain size in a stove, the size of the inlet opening must also be of a certain size and accordingly the door or doors meant for closing the inlet opening of the stove must be of a certain size.

Normally hinged doors will when positioned in open position then protrude in an angle from the stove and out in the room wherein the stove is placed. This is disadvantageous for the user when firing the stove.

The user can burn his arms or fingers on a protruding door, and the user must move firewood around the door or doors when firing the stove, because most often the firewood is kept beside the stove.

A possible solution to this problem is to provide a door which is able to follow the surface of the stove when opened.

From US 3,809,058 is known a fireplace with a kind of sliding door. The sliding door slides into the fireplace when opened. The door is manufactured from a sheet of plate and slides in an upper and a lower narrow groove.

This solution is not recommended to solutions where the door is provided with a transparent glass portion, since the means for securing the glass portion to the door will make the door too thick.

Further the door will be much too hot to be touched by hand when the door is to be closed again if the door opens into the combustion chamber. Another aspect of such a solution could be that the glass portion takes damage due to excessive heat when opened into the combustion chamber of the stove.

When the door also has to be sufficiently tight closed, the groove must be narrow, which makes the door hard to open and close.

Furthermore the glass portion may take damage and the door could be harder to open and close if residues from the firewood fall into the groove.

These problems are solved by a door for a stove where at least one guiding means is curved and forces a leading edge of the door in an outgoing direction relative to the stove followed by a movement along an outer side of the stove.

The door is provided with guiding means, which guiding means are positioned in one or more guiding slots or grooves.

The slot or groove is positioned in such a way that the starting movement for the guiding means will cause a movement of a leading edge of the closed door in an outgoing direction such that the leading edge of the door will be moved away from a sealed position to an open position whereby it is possible to move the door along the side of the stove. A trailing edge of the door will also be moved in an outgoing direction, but the trailing edge can be moved in a more gradually outgoing direction compared to the leading edge, because the leading edge over a short distance along the surface of the stove has to get free of the surface of the stove where the surface joins the inlet opening of the stove.

In one embodiment the guiding means is provided by protruding axle pins. In a further embodiment, the axle pins are provided with bushings.

In yet an embodiment the axle pins are provided with bearings.

In an alternative embodiment the guiding means in stead of guiding slots or grooves in the plate are provided by one or more curved rails or ridges on the plate which one or more rails or ridges follows substantially the same curved path as the guiding slots or grooves.

In an embodiment the rail or ridge can be formed by a protruding edge rising from the plate. The rail or ridge can also be formed by an elongate member bended in shape and attached to the plate.

Hereby it is possible to provide a well defined movement of the door during opening and closing of the door.

In the following different embodiments will be described with reference to the drawings, where: figure 1 shows a front view of a stove with the door closed; figure 2 shows a perspective view of the stove shown in figure 1 ; figure 3 shows a bottom view of a plate comprising guiding slots or grooves for guiding movement of the door and showing guiding means in a position where the door is closed; figure 4 shows a front view of a stove with the door partly opened; figure 5 shows a perspective view of the stove shown in figure 4; figure 6 shows a bottom view of a plate comprising guiding slots or grooves for guiding movement of the door and showing guiding means in a position where the door is partly opened; figure 7 shows a front view of a stove with the door opened; figure 8 shows a perspective view of the stove shown in figure 7; figure 9 shows a bottom view of a plate comprising guiding slots or grooves for guiding movement of the door and showing guiding means in a position where the door is opened.; figure 10 shows a door provided with bearings; and

Figure 1 1 shows a support for at least a pair of bearings, which support is provided at the lowermost end of the door.

A stove 1 comprises a combustion chamber 10, which chamber 10 is provided with an inlet opening closable from the surroundings by a door 2. The door 2 is provided with a transparent glass portion 3 and a handle 4 for opening the door 2. The handle 4 is provided with engaging means 15 to engage with engaging means inside the stove 1 to be able to hold the door 2 in a closed position.

The door 2 is provided with guiding means 6, 7 for guiding the movement of the door 2 relative to the stove 1 .

If the stove 1 is a stove 1 with a cylindrical outer surface or an oval or another rounded shape, guiding means 6, 7 is provided to lead the leading edge 1 1 of the door 2 in a direction substantially radial to the centre of the stove 1 , thereby providing a movement of the leading edge 1 1 of the door 2 in an outgoing direction, which movement goes into a movement along an outer side or outer contour of the stove 1 .

In an embodiment the guiding means 6, 7 are positioned in one or more guiding means on form of guiding slots or grooves 8, 9 provided in a plate 5 positioned in the bottom of the combustion chamber 10 or below the combustion chamber 10.

A similar plate with identically slots or grooves can be positioned at the top of the combustion chamber 10 or above the combustion chamber 10. In an embodiment the distance between the two plates corresponds approximately to the height of the door 2.

It is possible to guide the door 2 with a single plate 5, but two plates will give a more stable and well defined movement of the door 2.

The plate 5 can in an embodiment be substituted by a rim fastened to the inner side of the stove 1 , which rim is provided with guiding slots or grooves. A first slot or groove 8 is positioned in such a way that the starting movement for the guiding means 6, 7 will cause a movement of a leading edge 1 1 of the closed door 2 in an outgoing direction such that the leading edge 1 1 of the door 2 will be moved away from a sealed position to an open position whereby it is possible to move the door 2 along the side of the stove 1 . A trailing edge 12 of the door will also be moved in an outgoing direction, but the trailing edge 12 can be moved in a more gradually outgoing direction compared to the leading edge 1 1 , because the leading edge 1 1 over a short distance along the surface of the stove 1 has to get free of the surface of the stove 1 where the surface joins the inlet opening of the stove 1 .

A second guiding slot or groove 9 therefore can be configured in such a way that over a distance of the slot or groove 9, the slot or groove 9 is sloping in a direction converging towards the outer side of the stove 1 . Common for the first slot or groove 8 and the second slot or groove 9 is that the part of the slots or grooves 8, 9 guiding the guiding means 6, 7 on the distance of the slots or grooves 8, 9 from where the door 2 is moved outwards and to the door 2 is fully opened, the slots or grooves 8, 9 runs substantially parallel to the outer contour of the stove 1 .

In one embodiment the guiding means 6, 7 are provided by protruding axle pins.

In a further embodiment, the axle pins 6, 7 are provided with bushings.

In yet an embodiment the axle pins 6, 7 are provided with bearings 16, 20.

In further an embodiment the axle pins 6, 7 are positioned so that an axis in the longitudinal direction of the axle pins 6, 7 is substantially vertical. In an alternative embodiment the guiding means in stead of guiding slots or grooves 8, 9 in the plate 5 are provided by one or more curved rails or ridges 21 on the plate 5 which one or more rails or ridges 21 follows substantially the same curved path as the guiding slots or grooves 8, 9.

In an embodiment the rail or ridge 21 can be formed by a protruding edge rising from the plate 5. The rail or ridge can also be formed by an elongate member bended in shape and attached to the plate 5.

Figure 10 and 1 1 shows an alternative embodiment with guiding means 15 at the lowermost end 17 of the door 2 are provided by a support 18 comprising a pair of bearings 19, which bearings 19 are angled relative to each other in such a way, that the outside perimeter of each bearing 19 will roll on an edge or side at each side of the rail or ridge 21 .

The bearings 19 are secured to the support 18 by cylindrical protrusions 20.

Thereby the rail or ridge will be able to bear the weight from the door as well as lead the movement of the door in a preferred direction relative to the stove. The distance from an innermost position to an outermost position of the guiding slots or grooves 8, 9 measured from the centre of the stove 1 and towards the outer side of the stove 1 corresponds to the distance travelled by the door 2 in the same direction during opening or closing the door 2 of the stove 1 .

In an embodiment (not shown) the guiding means can comprise a pair of rods, which rods are able to pivot around individual points in the stove 1 as well as individual points on the door 2. The distance between the individual pivot points in the stove 1 are different from the individual pivot points on the door 2 and/or the length of the rods are different, making it possible, that the movement of the leading edge 1 1 of the door 2 starts in an outgoing direction and following continues in a movement along the outer side of the stove 1 .

In an embodiment the handle 4 is level with the door 2 in such a way that the handle 4 does not protrude from the door 2 when the handle 4 is not activated.

In connection with the combustion chamber 10 a removable ash pot 13 can be placed. The ash pot 13 can be secured to the underside of a grate 14 by means of a bayonet joint or another easy to disengage coupling means.

In another embodiment the ash pot 13 can simply be placed directly on the lower plate 5 or the ash pot 13 can be secured to the plate 5 by means of a bayonet joint or another easy to disengage coupling means.

Together with a lower part of the combustion chamber 10 formed as a bowl it is possible to lead the ash through the grate 14 into the ash pot 13 without any need to use further tools.