EP1437551A1 - Solid fuel fireplace for the domestic use - Google Patents

Abstract

The open fire includes a combustion chamber (3), at least one door (1, 1') movable to an opened position for access to the combustion chamber, and a closing device which causes the door to move from open to closed, shutting off the combustion chamber, of its own accord. The closing device is arranged to that the movement of the door from open to closed can be prolonged during at least one sector of this motion.

Description

The present invention relates to a solid fuel burner for the domestic area, comprising a combustion chamber, at least a door that is movable into an open position in which the Combustion chamber is accessible, as well as comprehensive locking devices, which automatically moves the door from the open position into can cause a closed position in which the combustion chamber is not accessible.

A solid fuel fireplace of the aforementioned type is from the German published application DE 36 02 131 A1 known. In the solid fuel furnace described therein is a stove with a door that is hinged is pivotally attached to the housing of the furnace. In the A hinge is inserted into a spring that automatically moves the door from the open position to the closed position can effect. As a disadvantage in furnaces with such Spring mechanisms prove that the spring force is below Circumstances is so big that the door with a big one Speed strikes. This can be a considerable one Show risk of injury to the user.

Especially because of the increasingly dense in recent years houses are becoming more and more so-called air-exhaust system chimneys (LAS chimneys) are not only used Can discharge smoke, but at the same time through separate Supply air ducts can supply fresh air. Accordingly tried the doors of the combustion chambers of solid fuel fireplaces to be tightly sealed so that no additional room air is sucked in. The spring of the furnace of the aforementioned Disclosure may not be so tight on the door press the combustion chamber limitation, one for the operation of the furnace independent of ambient air, sufficient tightness is guaranteed. As an alternative to such spring systems, State-of-the-art locking mechanisms used to to achieve this tightness.

The problem underlying the present invention is Creation of a solid fuel fireplace of the type mentioned Kind that a door that closes tightly with simple means and / or has a door that closes without endangering the user.

This is achieved according to the invention in that the closing means are designed to prevent the door from moving open to the closed position at least during one Section of the door movement can slow down. Through the Slowing down the movement of the door becomes the aforementioned Risk of injury to the user largely avoided. Furthermore, they can slow down the movement Parts of the locking means for pressing the door onto the door surrounding combustion chamber boundaries contribute.

For this purpose it can be provided according to claim 2 that the Closing means hydraulic means, pneumatic means, motor means or Include spring means for slowing door movement. For example, according to claim 3, the hydraulic means could Include hydraulic cylinders. Such a hydraulic cylinder can in increase the contact pressure in the closed position of the door with which the door or parts of the door against a correspondingly designed Combustion chamber limitation can be pressed. This way too in the operation of the solid fuel fireplace independent of the ambient air for example in connection with a LAS chimney Door tightness without additional locking mechanisms be guaranteed.

According to claim 4, there is a possibility that the Hydraulic cylinder for the passage of hydraulic oil at least includes an opening, the cross section to influence the Closing speed of the door is changeable. That way gives the user the opportunity to change the closing speed of the Door to its requirements or to the local conditions adapt.

According to claim 5 it can be provided that the Solid fuel fireplace has an opening to the combustion chamber at least partially surrounding door frames with a contact area includes, can be pressed on the parts of the door, in particular sealing are pushable.

It can be provided according to claim 6 that the sealing parts of the door that can be pressed onto the system area on the inside seals around the door. By pressing this Seals on the contact area can therefore be the appropriate Tightness of the combustion chamber during the particular Operation of the solid fuel fireplace independent of ambient air be guaranteed.

According to claim 7 it can be provided that the closing means continue to include at least one spring that moves the door effect from the open to the closed position or can reinforce and / or the pressing of the parts of the door to the Can effect or strengthen the investment area. The spring thus represents a possibly useful addition to the example Hydraulic fluid.

According to claim 8 it can be provided that the Solid fuel fireplace includes a holding device that a Locking the door in the open position allows. by virtue of the fact that with the invention Solid fuel furnace closing means are provided which automatically the door from the open to the closed position move, such a holding device is extremely useful, as this allows the door to be locked in the open position. The user does not have to keep the door open with one hand, but can, for example, during cleaning or Use both hands to fill the combustion chamber with fuel.

According to claim 9 it can be provided that the Holding device a bar with at least one hole and with comprises at least one bolt, being in the open position the door of at least one bolt for locking the door in the at least one hole can be transferred. Such a configuration the holding device is very simple and inexpensive to implement, although a pronounced even with contamination safe operation is possible.

According to claim 10 it can be provided that the bar on the Is arranged inside the door. The bar thus affects not that usually through the exterior of the solid fuel fireplace given overall impression.

According to claim 11 it can further be provided that the Locking means further include a door linkage that connects to the door and is connected to the hydraulic cylinder.

According to claim 12 it can be provided that in the locked open position of the door of at least one bolt abuts part of the door linkage in such a way that the door is not in the closed position can be moved. Also through this Measure, the holding device is extremely inexpensive produced.

According to claim 13 it can be provided that the Solid fuel fireplace can be operated independently of the ambient air and preferably as a stove that can be operated independently of the ambient air is executed.

Fig. 1

eine Vorderansicht einer erfindungsgemäßen Festbrennstofffeuerstätte;

Fig. 2

einen Schnitt gemäß den Pfeilen II - II in Fig. 1;

Fig. 3

einen Schnitt gemäß den Pfeilen III - III in Fig. 2.

Further features and advantages of the present invention will become clear from the following description of preferred exemplary embodiments with reference to the accompanying figures. Show in it

Fig. 1

a front view of a solid fuel fireplace according to the invention;

Fig. 2

a section along the arrows II - II in Fig. 1;

Fig. 3

a section along the arrows III - III in Fig. 2nd

In Fig. 2 and Fig. 3 are an open position in the Corresponding door 1 to be described in more detail below Parts shown in dashed lines, whereas those of the closed Position of door 1 corresponding parts with solid lines are provided. Furthermore, they are dashed in the following parts shown with deleted reference numerals, such as for example the door 1 'in the open position.

The embodiment of a shown in FIGS. 1 to 3 Solid fuel fireplace according to the invention is as a stove executed and includes the aforementioned door 1. The Solid fuel fireplace further comprises a housing 2, the one Combustion chamber 3 surrounds, the housing 2 opening on one side includes which can be closed by the door 1. This opening is surrounded by a door frame 4, which has a contact area 5 has, on the attached to the door 1 peripheral seals 6th can be sealing (see Fig. 2). In particular, in the illustrated embodiment provides that the door 1 or the door frame 4 no further locking mechanism or Include locking mechanism. Rather, the circulating Seals 6 by means of the following in more detail descriptive locking means in such a way sealing to the contact area 5 of the door frame 4 pressed so that it is so tight Connection between door 1 and housing 2 can be achieved that no flue gases can escape from the combustion chamber 3.

In Fig. 2 the door is in an open position which is dashed is shown, provided with the reference symbol 1 '. The door 1, 1 'is not on one side on the door frame 4 or the housing 2 hinges shown articulated so that they from the closed, solid position in the open, Position shown in dashed lines can be swung open.

The solid fuel fireplace also includes locking devices that automatic transfer of the door 1, 1 'from the open to the can cause closed position. This locking device comprise on the one hand a door linkage 7, 7 'which with the Combustion chamber 3 facing the inside of the door 1, 1 'and with a hydraulic cylinders 8 likewise encompassed by the locking means connected is. The locking means can also be one or more Include springs that move the door 1, 1 'from the open Effect or strengthen position in the closed position can.

The hydraulic cylinder 8 is with the door linkage 7, 7 ' connected that the movement of the door 1, 1 'from the open to the closed position, especially shortly before reaching the closed position, is slowed down. Furthermore, the Hydraulic cylinder 8 in the closed position of the door 1, 1 ' Increase contact pressure with which the circumferential seals 6 against the plant area 5 are pressed.

The hydraulic cylinder 8 can also have openings for the Have passage of the hydraulic oil, their cross sections are adjustable so that the closing speed of the door 1, 1 ' can be adjusted.

According to the invention, there is quite the possibility instead of one given by the hydraulic cylinder 8 hydraulic Closing unit also a pneumatic clamping unit or an over corresponding lever or the like acting motor or also to use a spring unit consisting of springs includes spring combinations, for example.

It can be seen in particular from FIGS. 2 and 3 that the Solid fuel fireplace further comprises a holding device 9, which lock the door 1, 1 'in the open position can. For this purpose, the holding device 9 comprises a U-shaped strip 10 with a horizontally oriented, extending inward Section in which holes 11 are formed which extend from the top to the top extend down through this horizontal section. On the bar 10 are pivotable by means of a hinge 12, 12 'bolts 13, 13' attached, in the open position of the door 1 'in such a way that Hinge 12 can be pivoted so that they in the holes 11 1st protrude. By protruding the bolts 13 '(see dashed lines Representations in FIG. 2 and FIG. 3) are located on one part of the door linkage 7 ', thereby moving the door 1, 1' of the open position to the closed position is prevented. The part of the door linkage 7, 7 'on which the bolts 13, 13' rest can is a roller 14, which is in the U-profile of the strip 10, 10 'in whose longitudinal direction can move (see Fig. 3).

Reference numerals:

1, 1 '

door

2

casing

3

combustion chamber

4

doorframe

5

plant area

6, 6 '

circumferential seals

7, 7 '

door linkage

8th

hydraulic cylinders

9

holder

10, 10 '

strip

11

holes

12, 12 '

hinge

13, 13 '

bolt

14

role

Claims (13)

Solid fuel domestic fireplace, comprising a combustion chamber (3), at least one door (1, 1 ') which can be moved into an open position in which the combustion chamber (3) is accessible; such as Closing means which can automatically cause the door (1, 1 ') to move from the open position to a closed position in which the combustion chamber (3) is not accessible; characterized in that the closing means are designed in such a way that they can slow the movement of the door (1, 1 ') from the open to the closed position at least during a portion of the movement of the door (1, 1'). Solid fuel fireplace according to claim 1, characterized in that the closing means comprise hydraulic means, pneumatic means, motor means or spring means for slowing the movement of the door (1, 1 '). Solid fuel fireplace according to claim 2, characterized in that the hydraulic means comprise a hydraulic cylinder (8). Solid fuel fireplace according to claim 3, characterized in that the hydraulic cylinder (8) for the passage of hydraulic oil comprises at least one opening, the cross section of which can be changed to influence the closing speed of the door (1, 1 '). Solid fuel fireplace according to one of claims 1 to 4, characterized in that the solid fuel fireplace comprises a door frame (4) at least partially surrounding an opening to the combustion chamber (3) with a contact area (5) on the parts of the door (1, 1 ') can be pressed on, in particular can be pressed on in a sealing manner. Solid fuel fireplace according to Claim 5, characterized in that the parts of the door (1, 1 ') which can be pressed onto the contact area (5) are all-round seals (6, 6') on the inside of the door. Solid fuel fireplace according to one of claims 1 to 6, characterized in that the closing means further comprise at least one spring which can effect or intensify the movement of the door (1, 1 ') from the open to the closed position and / or the pressing of the Parts of the door (1, 1 ') on the contact area (5) can effect or reinforce. Solid fuel fireplace according to one of claims 1 to 7, characterized in that the closing means comprise a holding device (9) which enables the door (1, 1 ') to be locked in the open position. Solid fuel fireplace according to claim 8, characterized in that the holding device (9) comprises a bar (10, 10 ') with at least one hole (11) and at least one bolt (13, 13'), with the door (1 , 1 ') the at least one bolt (13, 13') for locking the door (1, 1 ') can be transferred into the at least one hole (11). Solid fuel fireplace according to claim 9, characterized in that the strip (10, 10 ') is arranged on the inside of the door (1, 1'). Solid fuel fireplace according to one of claims 3 to 10, characterized in that the closing means further comprise a door linkage (7, 7 ') which is connected to the door (1, 1') and to the hydraulic cylinder (8). Solid fuel fireplace according to claim 11, characterized in that in the locked open position of the door (1, 1 ') the at least one bolt (13, 13') rests against a part of the door linkage (7, 7 ') in such a way that the door does not can be moved into the closed position. Solid fuel fireplace according to one of claims 1 to 12, characterized in that the solid fuel fireplace can be operated independently of the ambient air and is preferably designed as a fireplace that can be operated independently of the ambient air.

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