EP1591726A2 - Stove or fireplace and method for closing the main entrance of the firebox - Google Patents

Abstract

The furnace has a fire place and housing, with which the housing has a fire place main entrance with a catch mechanism. The catch mechanism in a main position locks the fire place main entrance, or in a reversal position, with which the catch mechanism releases the fire place main entrance. The catch mechanism stores energy, and in the reversed position more energy is used. An automatic pressing mechanism actively presses the catch mechanism in the main position against the housing (2). An independent claim is included for a method.

Description

The invention relates on the one hand an oven or a fireplace with a hearth and a housing in which the housing has a Fireplace main access having a closure device, and the closure device in a main position, in which the Locking device closes the main fire door access, or in a reversing position, wherein the closure device accesses the main fireplace releases, can be arranged. On the other hand, the concerns Invention a method for closing a Feuerstellenhauptzugangs a stove or a fireplace.

Stoves or fireplaces with such a fireplace and a Closing device for closing the main fireplace access are known from the prior art. For example, the closure device a single-winged or double-winged door, the swung open when needed and in the swung-open state Free the main fire access of the stove or the fireplace. About that In addition, there are locking devices, which have a sliding door. The sliding door is essentially in a plane between an open and a closed door position on the stove or on the Fireplace pushed back and forth to either a fireplace access of the stove or the fireplace to open or close.

It is an object of the present invention such closure devices further.

The object of the invention is of an oven or a Fireplace with a hearth and a housing solved, in which the housing a Feuerstellenhauptzugang with a closure device and the closure device in a main position, in which the closure device accesses the main fireplace closes, or in a reversing position, in which the closure device release the fire place head access, is arrangeable, and the closure device means for storing kinetic energy has, and in the reverse position more kinetic energy in the Energy saving means is stored as in the main position.

According to the invention it is by such trained means for Saving kinetic energy possible, the closure device on the one hand structurally easy to close in a simple manner, so that the environment of the stove or the fireplace is very good shielded from the hearth.

To move the closure device from the reversing position out and into the main position into a sufficient to be able to apply great force to the closure device Sufficiently pressed against the housing, it is advantageous when in the Reverse position more energy, preferably more kinetic energy, stored in the energy storage means as in the main position. Thus, on the other hand, the operation of the closure device is special comfortable, as the closing of the main fireplace access and in particular the pressing of the closure device against the housing significantly facilitated when closing the main fireplace access is.

The term "kinetic energy" is understood here that energy which is generated by moving the closure device exists and is in the means of storing kinetic Store energy.

The term "closure device" is used herein to mean any Device understood with which the fire place main access is closed so that through this the fireplace in the housing can no longer be achieved and, in particular, no exhaust fumes through the main fireplace access into the environment of the stove or get to the fireplace. For example, the main fireplace access is used for manual refilling of fuel or for cleaning the fireplace. In the present case closes the closure device in the Main location the main fire grate access while it is the main fire grate access releases in the reversing position.

In this context, the object of the invention also of a method for closing a main fireplace access of a stove or a fireplace, in which when opening of the fire place main access kinetic energy stored and used Closing the fireplace main access at least a portion of the stored Energy is released again.

Advantageously, the released part of the stored Energy sufficiently large to the closure device or equivalent Move and arrange components of the closure device in such a way that the fire place main access is particularly safe and dense is closed.

A particularly preferred embodiment provides an automatic Pressing device, which the closure device actively pressed against the housing in the main position.

The term "active" here describes a method, the main fireplace access to close at which the closure device by means of the energy stored in the energy storage means during a movement into the main position and also in the Main position actively pressed against the housing of the stove or the fireplace becomes. The description that the closure device against the housing of the stove or the fireplace is pressed implies one Method in which sealing means of the closure device in Area of the main fireplace access are pressed together in such a way, that the stove or the fireplace is in the area of the main fireplace access is particularly well sealed.

The automatic pressing device can by a variety be realized in technical facilities. A particularly uncomplicated Construction has the automatic pressing device when they Having means for storing kinetic energy to the closure device active and preferably automatically against the housing to press.

The automatic pressing device is particularly advantageous if it is ensured by them that sealant, which is the transition between the closure device and the housing of the furnace or the fireplace and wear in the course of use when moving the closure device from the housing be lifted or at least relieved.

A preferred embodiment of the furnace or the fireplace provides that the energy storage means in the main position one have relaxed state. Advantageously, the energy storage means even in the relaxed state one more great power is available, which enables the fire place main access is sealed particularly tight in the context of the invention.

Accordingly, it is advantageous if the energy storage means in the reversing position have a tensioned state. In the reverse position is in the present case preferably stored as much energy that already during the closing of the main fire entrance a enough great force can be applied to the closure device firmly against the housing into the main position into to press.

The reversal position describes in the context of the invention Position of the closure device, which depends on the position of the closure device is different in the main position. This plays it does not matter in what relative position the reverse position the main position is arranged. For example, the reverse position left, right, above or below the main position located. In particular, the reversing position is a position on the furnace or fireplace, in which the closure device in a first direction moved to a standstill and from which the closure device then in a second direction, the first Direction is opposite, moved back to the main position back becomes.

To secure the locking device in each position To hold and guide, it is advantageous if the present furnace or fireplace has a guide device to which the closure device is guided. For example, the closure device essentially translationally displaceable on the guide device guided. In particular, by a substantially translational guided closure device can in the present case a simple mechanism used for guiding and locking.

A variant provides that the guide device having a carriage. At this slide, the closure device be arranged and so advantageous over the Leadership be guided.

Furthermore, it is advantageous if the guide device a guide rail, on or in which components of the guide device arranged displaceable relative to the guide rail are. For example, the carriage on which the closure device is attached, displaceable on or in the guide rail arranged.

So that the components, which on or in the guide rail are arranged displaceably, with little friction on or in the guide rail can move, it is advantageous if the guide device Has sliding and / or rolling means. For example such sliding and / or rolling means attached to the carriage. she but can also be attached to or in the guide rail, so the carriage moves relative to these.

The closure device can be structurally particularly simple against a dense surface of the furnace or the fireplace relocate Press or, if the guide rail has a curve. through the curve allows the carriage along predetermined routes relocate.

As a shift of the closure device against a Sealing surface or against a housing of the furnace and / or the fireplace in Area of the fireplace main access is advantageous, provides a preferred Variant before that a curve of the guide rail Located at the height of the main fireplace access to the stove or fireplace is.

In particular, the carriage described is in the guide rail Especially safe to operate when the guide rail has two guideways. The guideways of the guide rails can be realized structurally simple by the guide rail has a C-profile.

By means of guideways having guide rail leaves the curve described above structurally simple manufacture, if at least one guideway is curved. By means of the curved Guideway can not only translate the closure device along a straight guideway, but for example also along a roughly circular guideway.

In addition, it is advantageous if a first distance between provided the closure device and the guide rail is when the fire door main access of the shutter released is, and a further distance, preferably a smaller distance, between the closure device and the guide rail is provided when the Feuerstellenhauptzugang of the closure device closed is. In that the distances between the Locking device and the guide rail variably adjustable are the present automatic pressing device structurally special simply constructed.

At this point it should be noted that all features related with the guide device described here also independent from the other features of the present invention inventive and are beneficial.

It is advantageous if the closure device in the main position has a tightness which is greater than 80%, preferably greater than 95%, is. This is particularly conventional Locking devices having a sliding door, advantageous since in such sliding doors so far a much lower density and thus often insufficient tightness is achieved.

The present closure device is structurally particularly simple realized when the locking device has a door, the displaceable on a carriage, and between the door and the carriage preferably the means for storing kinetic Energy are available. By placing the door on one Carriage is structurally particularly simple a sliding door realized the back and forth between the main position and the reverse position can be moved. Are the means between the door and the sled is arranged to store kinetic energy, is a special Reliable technical implementation realized to the door, in particular in the main position, by the energy storage media against to press the casing of the stove or the chimney. Here lead the Door and the carriage to each other from a relative motion. Preferably if the closure device is a sliding door, which is moved from the main position to the reversing position. at This movement is the existing during the sliding process kinetic Energy stored in a suitable energy storage means, so that the energy storage means in the reverse position a strained state exhibit. This stored energy is used to Closing closure device in the main position particularly tightly, so that the risk is reduced that exhaust gases inadvertently enter the area through the main fireplace access. About that In addition, this reduces the risk that the oven or the fireplace in operation by the fire main entrance in addition Air pulls and thereby the burning process is adversely affected.

The energy storage means described above and / or The automatic pressing device are structurally particularly simple realized if the energy storage means and / or the automatic pressing device the closure device comprise springs. For example are used as energy storage means coil springs or leaf springs used. Spiral and leaf springs are available in many different ways Strengths, so that the energy storage means cost-effective from standard products can be provided.

Advantageously, when opening the Feuerstellenhauptzugangs a spring cocked. As a result, the kinetic energy by means of stored the corresponding spring.

When closing the main fireplace access the spring is relieved, is advantageously the closure device or the sliding door of the closure device from the reversing position moved to the main position and the sliding door by the spring force pressed against the housing of the stove or the fireplace. Thus, the Fireplace main access particularly tightly closed.

The energy becomes particularly easy in energy storage devices stored when a carriage and / or a door of the oven or the fireplace is moved along a curve. For example, the Curve present chosen such that the energy storage means in the Main position of the closure device relaxed and in the reverse position are curious.

Further advantages, objects and characteristics of the present invention will be explained with reference to the description of the attached drawings, in which, for example, an oven with a sliding door and various Shutter mechanisms are shown.

Figur 1

schematisch eine perspektivische Ansicht eines Ofens mit einer Schiebetür,

Figur 2

schematisch eine Ansicht einer ersten Verschlusseinrichtung mit einem Schlitten und einer Schiebetür,

Figur 3

schematisch einen Längsschnitt durch die Verschlusseinrichtung aus der Figur 2 mit der Schiebetür und dem Schlitten in einer Hauptposition,

Figur 4

schematisch einen Längsschnitt durch die Verschlusseinrichtung aus den Figuren 2 und 3 mit der Schiebetür und dem Schlitten in einer Umkehrposition,

Figur 5

schematisch eine Funktionsweise einer weiteren Verschlusseinrichtung mit einer Zahnstange und einem damit kämmenden Zahnrad,

Figur 6

schematisch einen Längsschnitt einer alternativen Verschlusseinrichtung mit einem in einer Führungsschiene geführten Führungsschlitten,

Figur 7

schematisch den Längsschnitt der alternativen Verschlusseinrichtung aus der Figur 6 mit einem in der Führungsschiene ausgelenkten Führungsschlitten und

Figur 8

schematisch einen Querschnitt einer Führungseinrichtung im Detail.

It shows

FIG. 1

schematically a perspective view of a furnace with a sliding door,

FIG. 2

3 is a schematic view of a first closure device with a slide and a sliding door;

FIG. 3

2 schematically shows a longitudinal section through the closure device from FIG. 2 with the sliding door and the slide in a main position, FIG.

FIG. 4

2 shows a schematic longitudinal section through the closure device from FIGS. 2 and 3 with the sliding door and the slide in a reversing position;

FIG. 5

1 schematically shows an operation of another locking device with a toothed rack and a toothed wheel meshing therewith;

FIG. 6

2 is a schematic longitudinal sectional view of an alternative closure device with a guide carriage guided in a guide rail;

FIG. 7

schematically shows the longitudinal section of the alternative closure device of Figure 6 with a deflected in the guide rail guide carriage and

FIG. 8

schematically a cross section of a guide device in detail.

The furnace 1 shown in Figure 1 has a housing 2 with a Fireplace main access 3, which can be closed by a sliding door 4 is. In addition, the oven 1 comprises a side viewing window 5 and an exhaust gas outlet 6 through which exhaust gases are led out of the furnace become.

The sliding door 4 is at a first rail 7 and at a second Rail 8 guided such that the sliding door 4 from a main position 9 in a reversing position 10 into and back into the Main position 9 can be moved. In this embodiment the sliding door 4 is moved a little out of the main position 9 out represented, so that a part of the fireplace main access 3 is released is.

The sliding door 4 has sealing means in this embodiment 11, by means of a plurality of springs 12 (here only exemplary numbered) at least in the main position 9 against the housing. 2 of the furnace 1 are pressed. At least in the main position 9 points the guide rail 7 curves 13 (here only exemplified) and the second guide rail 8 curves 14 (numbered here only as an example) on, which is a lowering of the sealing means 11 in the direction of the housing 2 allow. In the area of the curves 13 and 14, the sealants 11 pressed by the spring force of the springs 12 against the housing 2.

If, on the other hand, the sliding door 4 is out of the region of the curves 13 and 14 moves in the direction of the reversing position 10 in the direction of the arrow 15, the springs 12 are pressed further together than in the Main position 9 and accordingly tense. This saves the Feathers 12 kinetic energy, which they are in the main position 9 when Relax again. When relaxing the springs 12th the sealing means 11 are pressed firmly against the housing 2.

The closure device 20 shown in FIGS. 2, 3 and 4 comprises a sliding door 21 which is mounted on a carriage 22 by means of six springs 23 (numbered here only as an example) is spring-mounted. Consequently the sliding door 21 relative to the carriage 22 is a relative movement in the illustration according to the figure 2 in the plane of the paper into or out of her.

By means of the carriage 22, the sliding door 21 in the directions of the double arrow 24 a relative movement relative to a furnace housing 25 execute. To the relative movement between the sliding door 21 and the carriage 22 to perform, has the closure device 20 in this embodiment, four Kurvenfolger 26, which follow a curve 27 (see FIGS. 3 and 4).

The sliding door 21 has a circumferential seal 28, with which the sliding door 21 against a housing surface 29 (see Figures 3 and 4) is sealed.

In FIG. 3, the sliding door 21 is in a main position 30 arranged. In this main position 30, the curve followers 26 are in FIG Lowering 31 (here only exemplarily characterized) arranged, so that the sliding door 21 with its peripheral seal 28 by the springs 23 (see Figure 2) is pressed against the housing surface 29. In the Main position 30, the springs 23 are relieved.

The sliding door 21 illustrated in FIG. 4 is already in one Reversing position 32 transferred, in which the cam follower 26 from the Lower 31 are moved out. In the reversing position 32 are the springs 23 (see Figure 2) accordingly compressed, so tense. By moving out of the cam follower 26 from the wells 31 is the sliding door 21 with its peripheral seal 28 from the housing surface 29 lifted, allowing a simple and easy movement the sliding door 21 and the entire carriage 22 along the guideways 27 is possible. In addition, this will take off when moving the sliding door 21, the seal 28 spared because they does not drag on the housing surface 29.

If the sliding door 21 together with the carriage 22 back into the Shifted main position 30, the cam follower 26 move in the Sink 31 into it. This relieves the springs 23, and the Sliding door 21. By means of the spring force of the springs 23 against the housing surface 29 pressed.

In another embodiment, sinks may also be in the reversing position 32 may be provided to the sliding door 21 also in the reversing position 32 to press the housing surface 29. hereby undergoes the sliding door 29 in the reversing position 32 automatically a certain firm hold.

The mechanism shown in FIG. 5 has a gear 50 on, which cooperates with a rack 51. Lead the Rack 51 a translational movement in one of the directions in accordance with the double arrow 52, the gear 50 moves to the Rotary axis 53 according to one of the directions of the double arrow 54th

The rack 51 is connected to a door 55. By means of Door 55 is a Feuerstellenhauptzugang (not shown here) closed or opened. If the door 55, for example, in an upper Moves position (reversing position), the gear 50 rotates according to the Double arrow 54 counterclockwise and tense this one Spring 56. In the reversing position, the door 55 snaps into a trap, so that the door 55 in the reversing position remains until the door 55 from the Trap released and returned to a lower position, especially in the Main position, is relocated. Here, the gear 50 rotates in Clockwise. The gear 50 is biased by the spring force of the previously Spring 56 is driven, leaving the door 55 in the main position is pressed and the fire place main access particularly tight closes.

The alternative embodiment shown in FIGS. 6 and 7 Guide rail 208 has a first lateral guide cheek 260 and a second lateral guide cheek 261 on. The first lateral guide cheek 260 represents a completely straight first guideway 262 ready. The second lateral guide cheek 261 provides another, second guideway 263 ready, the majority also is straight, but at the lower end 264 of the guide rail 208 and therefore also provides a curve 227.

Between the two lateral guide cheeks 260 and 261 a carriage 222 is arranged, which in this embodiment has two cam followers 226 and 226A. By means of the two curve followers 226 and 226A, the carriage 222 is supported on the lateral guide cheeks 260, 261 from. Thus, the carriage 222 is in the guide rail 208 mounted translationally movable, so that it has a relative movement according to the directions of the double arrow 224 with respect to Guide rail 208 can perform.

Both cam followers 226 and 226A are on the carriage 222, relative to its central longitudinal axis 265, arranged eccentrically. So is the first curve follower 226 to the left of the central longitudinal axis 265 stored on the carriage 222. Curve follower 226A, on the other hand, is stored to the right of the central longitudinal line 265 to the carriage 222. Thus, the first cam follower 226 is more of the first track 262 the first lateral guide cheek 260 and the second cam follower 226A more of the second guide track 263 of the second lateral guide cheek 261 facing.

Thus, the carriage 222 within the guide rail 208th does not shuttle back and forth between the two guide cheeks 260, 261, is a force introduction means 266 also off-center on the Carriage 222 arranged. For this purpose, the force introduction means 266 via a force introduction point 267 connected to the carriage 222, which to the right of the central longitudinal axis 265 and in the lower third of the Carriage 222 is arranged.

While in the region of a reversing position 232, the carriage 222 is guided in a straight line in the guide rail 208, the carriage 222nd guided in the region of a main position 230 along the curve 227 and thus with respect to a guide rail central axis 268 off-center deflected on the guide rail 208. In the undeflected state of the carriage 222 are the central longitudinal axis 265 and the central axis 268 of the guide rail 208 parallel and covered to each other.

If the carriage 222 is arranged in the main position 230, is a arranged on the carriage 222 door (for the sake of clarity not explicitly shown here) against a housing surface (not here shown) pressed. Thus, a main fireplace access (here not shown) particularly tightly closed, so that reduces the risk is that exhaust from the oven via the main fireplace access get into the environment.

Is the carriage 222 and thus also at the Carriage 222 arranged door for closing the main fireplace access in the reversing position 232, the carriage 222 and the Door arranged therefrom thereby further from the housing of the furnace spaced, that the carriage 222 and the door arranged thereon from the area of the curve 227 again on the guide rail centerline 268 is deflected.

The guide device 370 shown in FIG. 8 comprises a Guide rail 308, which via a screw 371 at a housing 302 of a furnace (not shown here) attached is. In addition, the guide device 370 has a telescopic extension 372 on, by means of another screw 373 also attached to the housing 302 of the furnace. At the telescopic extension 372 is a spring 323 for storing kinetic energy arranged. The spring 323 biases a tensioning device 374 on which a guide carriage 322 is arranged. The guide carriage 322 supports a cam follower 326, which is a curve 327 of the guide rail 308 follows. In addition, on the guide carriage 322 a door bracket 375 with a sliding door arranged thereon 304 attached. The door holder 375 is by its own screw 378 screwed to the guide carriage 322.

By means of the telescopic extension 372, the guide carriage 322 in directions out of the paper plane or in the Paper level are moved into it. This will be the door holder 375 moves with the sliding door 304, so that a not shown here in detail Fireplace head access of the stove either locked or can be released.

As shown, the guide carriage is located 322 in a main position 309, at which the main fireplace access is completely closed by the sliding door 304. That the guide carriage 322 is in a main position 309, can be seen that the cam follower 326 in a sink (not explicitly shown here) of the curve 327 of the guide rail 308th is engaged. This is recognizable because the tread 376 of the Curve tracker 326 partially hidden by the guide rail 308 is.

If the telescopic extension 372 now moves out of the plane of the paper in the area of the guide carriage 322, the curve follower 326 follows the curve 327 and moves out of the depression of the curve 327 according to the direction of the arrow 377. Here, the spring 323 is compressed in the spring retainer 374, wherein kinetic energy from the movement of the guide carriage 322 according to the arrow 377 in the compressed spring 323 stores. If the cam follower 326 is moved out of the recess of the curve 327, the spring 323 is accordingly in a tensioned state. If this is the case, the guide carriage 322 and correspondingly the sliding door 304 are in a reversing position (not shown here).
The mechanism described here forms a structurally particularly simple way an essential part of an automatic pressing device, which actively presses a closure device of the main fireplace access, such as the sliding door 304 shown here, in the main position 330 by means of the spring 323 against the housing 302. In addition to the components already discussed herein, the present invention further provides the furnace with a furnace liner 379, an inner panel 380 for insulating material 381, a counterweight 382 for facilitating movement of the guide 370 and an air regulating mechanism 383 by which the air supply within a closed hearth can be adjusted.

Claims (13)

An oven or fireplace having a hearth and a housing in which the housing has a main fireplace access with a closure means, and the closure means being locatable in a main position where the closure means closes the main burner access or in a reversing position where the closure means releases the main burner access characterized in that the closure means comprises means for storing kinetic energy, and in the reversal position more kinetic energy is stored in the energy storage means than in the main position. Oven or chimney according to claim 1, characterized by an automatic pressing device, which actively presses the closure device (20) in the main position (30) against the housing (2). Oven or chimney according to one of claims 1 or 2, characterized in that the energy storage means in the main position (30) have a relaxed state. Oven or chimney according to one of claims 1 to 3, characterized in that the energy storage means in the reversing position (32) have a tensioned state. Stove or chimney according to one of claims 1 to 4, gekennzeich net is guided by a guide means (370) on which the closure device (304). Oven or chimney according to claim 5, characterized in that a guide rail (308) of the guide means (370) has a curve (327). Oven or chimney according to one of claims 1 to 6, characterized in that the closure device (20) in the main position (30) has a tightness which is greater than 80%, preferably greater than 95%. Oven or chimney according to one of claims 1 to 7, characterized in that the closure device (20) comprises a door (21) which is displaceably arranged on a carriage (22), and preferably between the door (21) and the carriage ( 22) the means for storing kinetic energy are present. Oven or chimney according to one of claims 1 to 8, characterized in that energy storage means and / or an automatic pressing device of the closure device (20) springs (23). Method for closing a main fireplace access of a Oven or a fireplace, in which when opening the fireplace main entrance stored kinetic energy and when closing the fireplace main entrance at least a part of the stored kinetic energy is released again. A method according to claim 10, characterized in that when opening the Feuerstellenhauptzugangs (3) a spring (23) is tensioned. Method according to one of claims 10 or 11, characterized in that when closing the Feuerstellenhauptzugangs (3), a spring (23) is relieved. Method according to one of claims 10 to 12, characterized in that a carriage (22) and / or a door (21) of the furnace (1) or the chimney along a curve (27) is moved.

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