EP1766123A2

EP1766123A2 - Umbrella-like laundry drier

Info

Publication number: EP1766123A2
Application number: EP05769160A
Authority: EP
Inventors: Christian Gross; Peter Tiwi; Benjamin Schramm; Heinz Josef Ohm; Dieter Pätzold
Original assignee: Leifheit AG
Current assignee: Leifheit AG
Priority date: 2004-06-25
Filing date: 2005-06-23
Publication date: 2007-03-28
Anticipated expiration: 2025-06-23
Also published as: WO2006000417A3; ATE541982T1; WO2006000416A1; EP1802802B1; EP1776499B1; EP1802802A1; EP1766123B1; WO2006000419A1; WO2006000417A2; EP1776499A1

Abstract

The inventive umbrella-like laundry drier comprises a vertical mast (1) on which cloths line bearing arms (4) are movably disposed on a sliding star (2) and supported by spreading arms (6). Said spreading arms are pivotally mounted by means of holding axes (8) in a holding star (3) arranged on the mast (1) and by means of articulated axes (7) mounted on the bearing arms (4). Said umbrella-like laundry drier also comprises an expanding body (9) which is mounted on the mast (1) and interacts with at least one spreading arms (6) and/or a counter body (15) arranged on the bearing arm (4), wherein said expanding body (9) and the counter body (15) are springingly connectable to each other by means of a coupling device in a neutral state.

Description

Rotary Dryer

The invention relates to a rotary dryer with a mast and with respect to the mast from a rest position to a clamping position pivotally mounted arms that carry at least one clothesline.

In known laundry umbrellas of this type (e.g., U.S. Patent No. 2,289,450), the tensioning of the laundry screen in the initial phase requires a relatively high amount of force until the arms have reached a certain angular position. Attempts have already been made to improve this malady by using a pulley-like elevator cord. But even such a device can only facilitate the clamping of the laundry screen when the arms are pivoted by a certain angle from its vertical rest position out, which must be done by hand.

A significant improvement in this regard is achieved in the scrubbing screen according to EP-B1-0 113 789, characterized in that the swivel axes of the spreader arms on the arms are clearly outside the imaginary connecting line between the pivot axes of the arms and the holding axes of the spreader arms when folded linen umbrella. This arrangement results in train on the elevator line always sufficient, directed away from the mast force component to pivot the arms from its vertical rest position. The initial spreading of the arms by hand is therefore no longer necessary. However, the articulation axes of the spreader arms on the arms turn can not be laid too far outward, otherwise the arms come to rest in the folded state at a relatively large distance from the mast, so that the space requirement of the folded laundry umbrella would be increased. This disadvantage is attempted in the scrubbing screen according to EP-B1-0 649 935 thereby remedy that in the mast above the holding axes longitudinally displaceable an expanding mandrel is mounted, which cooperates with attached to the spreader arms support elements and a transverse displacement of the spreader arms from their folded Resting position causes.

As a result, a slight opening of the laundry screen is reliably achieved, but has the disadvantage that additionally mechanically moving parts are required for the triggering of the spreading process, which increases both the construction and the assembly costs.

Finally, EP-A2-0 898 007 a laundry screen is known in which the support arms are connected via pivot arms with the support arms. This embodiment does not significantly improve the opening, at least from the resting phase.

According to EP 0 898 006 A2, a rotary clothes dryer has been disclosed, in which the clamping in the initial phase is facilitated by the fact that a spreading device, which is adjacent to the second holding star and can be brought into engagement with the folded-in carrying arms, is provided for pivoting the carrying arms into a slightly open position which has at least one arranged on the outside of the mast, by pulling the pull rope away from the mast to the outside and deflectable with the folded support arms engageable spreading member which pivots when deflecting the folded support arms in the slightly open position.

Both embodiments have the disadvantage that the creation of a simplifying the Aufspannvorgang mechanism negatively affect the inertia in the closed state of the rotary dryer. The clothes dryers tend to cake during transport, i. fall apart, so that additional security measures are required.

The object of the invention is to provide a laundry screen, the support arms remain securely in their vertical rest position, but at the Clamp even in the initial phase require only a small amount of force.

The object is achieved by a laundry screen, which is characterized in that a coupling device is provided for releasably securing the arms in the rest position.

The rotary dryer according to the invention has the advantage that the arms are securely and reliably fixed in the rest position. This is particularly advantageous when the arms in the rest position covering the drooping clotheslines, as in this way a full coverage is possible without the openings remain between the arms through which dirt or moisture could penetrate.

Preferably, the coupling device is in the rest position, the arms directly and / or indirectly on the mast and / or fixed to an expansion body. In a particularly advantageous embodiment, the coupling device determines the arms automatically when the arms reach the rest position (when folding the rotary dryer). This is particularly advantageous because the user does not have to make any extra handles.

In one embodiment of the rotary dryer according to the invention, a clamping device for transferring the arms from the rest position to the clamping position is provided. In a particularly advantageous embodiment of this rotary dryer, the coupling device automatically releases the arms defined in the rest position upon actuation of the clamping device. This can be realized, for example, in that the clamping device has an elevator cable for pulling up a star-shaped sliding joint on the mast, on which the arms are pivotably mounted. Wherein this elevator rope simultaneously operates the coupling device. In a particular embodiment, the coupling device has at least one latching hook. Preferably, as many locking hooks as arms are provided.

The at least one latching hook can be arranged on one of the arms or on the mast or on a holding star arranged on the mast. Advantageously, the at least one latching hook is arranged rotatable and / or pivotable and / or displaceable, so that by setting the rotational position and / or the pivoting position and / or the sliding position of the latching hook setting or releasing the arms is adjustable.

In one embodiment, a counter body is provided in which the latching hook hooks in the rest position.

Advantageously, a release device for releasing the arms is provided. In an advantageous embodiment, the release device has a means for displacing and / or rotating and / or pivoting the at least one latching hook and / or the counterpart body. The means for displacing and / or rotating and / or pivoting the at least one latching hook has, in a particularly advantageous embodiment of the rotary dryer, a cone and / or cone displaceable in the longitudinal direction of the mast.

Advantageously, the rotary clothes dryer according to the invention has a spreading device for deflecting the arms out of the rest position. The spreading device may preferably have run-on slopes arranged on the arms.

In one embodiment, the spreading device on a displaceable and / or pivotable and / or rotatable Abdrückelement against the run-on slope acts. In one embodiment, the run-on slopes are part of the counter body and / or the locking hooks. The push-off element can be part of the release device, in particular the cone and / or the cone.

In one embodiment of the rotary dryer according to the invention, the arms are mounted relative to the mast-preferably in Langlochführungen- displaced. For example, an arm can be associated with a support arm. The articulated in a slot guide is connected to the arm. The slot guide is preferably designed such that the arms are guided from its vertical position into a slight spread position at the first moment of winding.

Preferably, a spring element for biasing the latching hook and / or the counter body is provided.

In one embodiment of the rotary clothes dryer according to the invention, an elevator line is provided for mounting the rotary dryer. Advantageously, the coupling device can be operated with the elevator line.

In a particular embodiment, the coupling device has at least one magnet. The at least one magnet can be arranged on an arm and / or on the mast of the rotary dryer. Advantageously, the at least one magnet is displaceable and / or rotatable and / or pivotable.

The at least one magnet can be designed as an electromagnet or as a permanent magnet. In one embodiment, in the rest position, the north poles of magnets arranged on the arms face the south poles of magnets arranged on the pole and / or the south poles of magnets arranged on the arms face the north poles of magnets arranged on the pole.

In one embodiment, to support the winding process - in particular for the deflection of the arms out of the rest position - the north poles of magnets arranged on the arms are the north poles of magnets arranged on the mast and / or the south poles of magnets arranged on the arms the south poles of Magnets arranged on the mast zuwendbar.

In one embodiment, the magnets to support the Aufziehvorganges - especially for the deflection of the arms out of the rest position - umpolbar.

In one embodiment, the expansion body and the counter-body arranged on the support and / or on the support arm serves both as a coupling and a decoupling member. Depending on the design this little or no additional construction work is required.

The coupling device is preferably designed such that when closing the rotary dryer the non-positive connection takes place automatically. To disconnect the coupling means, a release device, e.g. the pull lines, which also serves to clamp the rotary clothes dryer provided, which triggers a relative movement between the mast and support or support arm. This may be an axial movement of the expansion body but also a rotational movement depending on the embodiment.

In one embodiment, an axially adjustable, loaded by a spring spreader is provided at the upper end of the mast, which is running with an inwardly running starting surface for a two-armed latching hook which is pivotally mounted on the holding star and the latching arm in the support arm or an opening in Support arm is formed latching and on which a second start-up area for the support arm or support arm mounted counter body running from outside to inside Slant has provided. For safe operation, a stop on the holding star for limiting the downward movement of the starting arm of the latching hook is provided for the latching hook or the starting arm of the latching hook.

To further improve the functionality of the contact surface of the starting arm of the latching hook is rounded approximately semicircular.

In another embodiment, both the spreader and the counter body are each formed of a magnet, the order north pole to south pole is changed both from one to the next spreader as well as from one to the next counter body. The triggering of the spreading movement takes place, for example, by rotating the spreader and / or parts of the coupling device so that the north pole comes to rest on the north pole and south pole on the south pole, so that a repulsive force is created. By further turning or turning back an attraction and thus a coupling of the support arms or support arms is achieved on the mast.

In one embodiment, the arms are pivotally mounted on a slip joint which is slidable along the mast. The elevator leash can advantageously be positively connected to the sliding joint. In a preferred variant, the sliding joint has a deflection, wherein the elevator line is guided over the deflection to a tensioning device.

A further facilitation of Aufspannvorganges is achieved in a particular embodiment in that the support arms are mounted axially displaceable relative to the pivot axes. This makes it possible, during the clamping operation, first lift the support arms slightly so that they get into a self-opening angular position.

The possibility of lifting is achieved in a simple manner in that the pivot axis is mounted in a slot on the support arm. It is thus neither an additional component, nor an increased installation effort required. In a further embodiment of the invention are at the upper end of the support arms latching hooks, which cooperate with - preferably arranged in and / or on the holding star - recesses provided. This ensures a completely secure locking of the support arms on the mast in the rest position.

Preferably, the latching hooks are provided with a run-on slope, so that they can automatically slide into the latching recesses during folding of the laundry umbrella. In order to ensure a secure engagement, the latching hook can advantageously be biased by a spring.

On the other hand, this locking is easy to solve, for example, by lifting the support arms due to long-term support arms.

The solution is preferably automatic without additional handle.

In one embodiment of the invention, the holding star is composed of a clampable pivot bearing and a rotating part holding the spreading arms. About the clampable pivot bearing of the holding star, and thus the support arms of the laundry umbrella, arbitrarily height adjustable. The arrangement of the spreader arms in a rotating part allows the loading of the laundry screen from a fixed standing position, as well as the Aufspannvorgang can take place from this position. Furthermore, it is possible that in support of the drying process in wind, the support arms of the laundry screen can rotate.

In the drawing, the subject invention is shown schematically and will be described below with reference to the figures, wherein like-acting elements are provided with the same reference numerals. Showing:

1 is a schematic view of a closed clothes dryer without clothesline and only two support and support arms shown

2 is a partial view according to II in Fig. 1, wherein only one support arm is shown hinted,

3 is a view according to the direction III of FIG. 2, 4 is a section along the line IV-IV of FIG. 3,

5 shows an alternative solution in a representation according to FIG. 1,

6 is an enlarged partial view of a detail VI in Fig. 5,

7 shows a view according to FIG. 6 after the sliding star has been lifted over the pull line in the situation of the spread, FIG.

8 and 9 an alternative solution according to FIGS. 6 and 7,

10 is a plan view of a rotary dryer according to another alternative solution and

Fig. 11 shows the situation of the embodiment of FIG. 10 at the moment of spreading the support arms.

On a mast 1, a sliding star 2 with respect to a holding star 3 is slidably mounted, but lockable. On sliding 2 two support arms 4 are pivotally mounted on pivot axes 5. Between the support arms 4, a washing line, not shown, is stretched. The support arms 4 are supported by spreading arms 6 against the holding star 3. The spreading arms 6 are mounted by means of articulation axes 7 on the support arms 4 and by means of holding axles 8 on the holding star 3. By moving the sliding star 5 upward, the support arms 4 are spread and the clothes dryer is clamped, i. brought into their state of use.

In order to facilitate the clamping of the rotary clothes dryer in the initial phase, an expansion body 9 is arranged at the upper end portion of the mast 1, which is guided in the longitudinal direction of the mast 1 slidably and with a tubular extension 10 on a sleeve 11 of the holding star 3, on the upper End of the mast 1 is attached. The expansion body 9 has, starting from the extension 10, a tapered starting surface 12 running from inside to outside, which merges into a disc-shaped starting region 14 after a constriction 13. The disk-shaped starting region 14 acts on a support body 4 arranged on the opposing body 15, which is arranged with a run-on slope 16 which extends with respect to the mast from outside to inside.

Below the counter body 15, an opening 17 is provided in the support arm 4, in which the latching arm 18 of a two-armed latching hook 19, the is mounted on a rotation axis 20 in the holding star 3, engages. With the other lever arm of the latching hook 19, the starting arm 21, this abuts against the contact surface 12. The starting arm 21 is rounded semicircular at its end.

In Figs. 1 to 4 the clothes dryer is shown at rest, i. the support arms are non-positively coupled via the locking hooks 19 to the mast 1. To aufzuspannen the clothes dryer, the pull rope 22 is tightened in the direction 23. The pull cable 22 is guided via a guide opening 24 in the holding star 3 via the spreader 9 to an attachment point 25 on the holding star 3. By the train in the direction 23 of the spreader 9 is axially displaced against the resistance of the spring 26 in the direction 27. As a result, the starting arm 21 of the latching hook 19 slides along the contact surface 12 upwards, it pivots about its axis of rotation 20, and snapped with the hook 28 of the latching arm 18 from the opening 17 of the support arm 4. At the same time, the starting region 14 slides along the run-up slope 16 and presses the carrying arm 4 in the direction 29 outwards. By this movement in the direction 29 of the support arm is pushed out of its dead center position and initiated the further opening process of the rotary dryer.

When closing the clothes dryer, the support arm strikes with its slope 30 of the counter body 15 on the hook 28, which is also bevelled and pushes it down so that it can engage in the opening 17. The clothes dryer is thus again secured non-positively for the state of rest, being held by a compression spring 31 in this position.

Of course, it is also possible to arrange the spreader in the mast and the counter-body to the support arms, in accordance with slots must be provided in the mast, in which engage the mating body. The same applies to the opening of the latching hook.

In the embodiments according to FIGS. 5 to 9, the articulation axis 7 of the spreading arm 6 is arranged in a slot guide 32. The expansion body has magnets 33, wherein these magnets are integrated in the holding star 3. In this case, in a first exemplary embodiment, a north pole 34, a south pole 35 and in turn a north pole 34 are arranged in series. As a counter body are on Support arm also arranged magnets 33, wherein a south pole 35 and a north pole 34 are connected in series. When pulling on the traction cable 22 in the direction 23 of the support arm 4 is raised in the direction 36, so that the position shown in FIG. 7 is achieved. As a result, the South Pole with the South Pole and the North Pole with the North Pole face each other, which forces a repelling effect and initiates the opening process of the rotary clothes dryer. Fig. 6 illustrates the coupled state as the opposing north poles and south poles attract.

FIGS. 8 and 9 represent analogously to FIGS. 7 and 6 a simplified embodiment, but the reduced number of magnets is purchased at a lower clamping force at rest.

FIG. 10 shows a further alternative solution in plan view. The spreader 9 is arranged on the top of the mast 1. On its circumference 37, the support arms 4 opposite south poles 35 and north poles 34 are arranged in alternation. Opposite the support arms 4 as a counter body 15 are also mounted in the circumferential direction and alternately south 35 and north poles 34. By a rotation 38 by 90 ° both to the left or to the right, the position is achieved as shown in Fig. 11. As a result, both the south and the north poles face each other, so that the support arms are unlocked. The rotation of the expansion body can be done by known techniques, such as a heart curve. LIST OF REFERENCES:

1 Mast 2 Sliding starter 3 Stopping star 4 Supporting arm 5 Swiveling axis 6 Spreader arm 7 Anlenkachse 8 Halteachse 9 Spreader 10 Extension 11 Sleeve 12 Contact surface 13 Constriction 14 Start-up area 15 Counter body 16 Start-up slope 17 Opening 18 Latching arm 19 Latching hook 20 Rotation axis 21 Starting arm 22 Pulling rope 23 Direction 24 Guide opening 25 Attachment point 26 spring 27 direction 28 hook 29 direction 30 bevel 31 compression spring 32 slot guide Magnet North Pole South Pole Direction Circumference Rotation Stop Downward movement

Claims

claims

1. rotary clothes dryer with a mast (1) and relative to the mast from a rest position into a Aufspannstellung pivotally mounted arms (4) carrying at least one clothesline, characterized in that a coupling device is provided for releasably securing the arms in the rest position ,

2. rotary clothes dryer according to claim 1, characterized in that the coupling device in the rest position, the arms directly and / or indirectly on the mast and / or on an expansion body (9) determines.

3. rotary clothes dryer according to one of claims 1 or 2, characterized in that the coupling device automatically determines the arms when the arms reach the rest position.

4. rotary clothes dryer according to one of claims 1 to 3, characterized in that a clamping device is provided for transferring the arms from the rest position to the clamping position.

5. rotary clothes dryer according to claim 4, characterized in that the coupling device automatically releases the arms in the rest position defined arms upon actuation of the jig.

6. rotary clothes dryer according to one of claims 1 to 5, characterized in that the coupling device has at least one latching hook.

7. rotary clothes dryer according to claim 6, characterized in that as many latching hooks as arms are provided.

8. rotary clothes dryer according to one of claims 6 or 7, characterized in that the at least one latching hook is arranged on one of the arms or on the mast or arranged on a mast holding star.

9. rotary clothes dryer according to one of claims 6 to 8, characterized in that the at least one latching hook is arranged rotatably and / or pivotally and / or displaceably.

10. rotary clothes dryer according to one of claims 6 to 9, characterized in that a counter body is provided, in which hooks the latching hook in the rest position.

11. rotary clothes dryer according to one of claims 6 to 10, characterized in that a release device is provided for releasing the arms.

12. rotary clothes dryer according to claim 11, characterized in that the release device has a means for moving and / or rotating and / or pivoting of the at least one latching hook and / or the counter body.

13. clothes dryer according to claim 12, characterized in that the means for displacing and / or rotating and / or pivoting of the at least one latching hook has a displaceable in the longitudinal direction of the mast cone and / or cone.

14. rotary clothes dryer according to one of claims 1 to 13, characterized in that a spreading device is provided for deflecting the arms from the rest position.

15. rotary clothes dryer according to claim 14, characterized in that the spreading device has at least one - preferably arranged on the arms - run-on slope.

16. rotary clothes dryer according to claim 15, characterized in that the spreading device comprises a displaceable and / or pivotable and / or rotatable Abdrückelement which acts against the run-on slope.

17. rotary clothes dryer according to one of claims 15 or 16, characterized in that the run-on slopes are part of the counter body and / or the latching hooks.

18. rotary clothes dryer according to one of claims 16 or 17, characterized in that the push-off element is part of the release device - in particular of the cone and / or the cone - is.

19. rotary clothes dryer according to one of claims 1 to 18, characterized in that the arms are mounted relative to the mast - preferably in slot guides - slidably.

20. rotary clothes dryer according to one of claims 1 to 19, characterized in that at least one arm is associated with a support arm which is pivotally connected in a slot guide with the arm.

21. rotary clothes dryer according to one of claims 6 to 20, characterized in that at least one spring element for biasing the latching hook and / or the counter body is provided.

22. rotary clothes dryer according to one of claims 1 to 21, characterized in that an elevator line is provided for clamping the rotary dryer.

23. rotary clothes dryer according to claim 22, characterized in that the coupling device is operable with the elevator line.

24. rotary clothes dryer according to one of claims 1 to 23, characterized in that the coupling device comprises at least one magnet.

25. rotary clothes dryer according to claim 25, characterized in that a magnet is arranged on at least one arm.

26. rotary clothes dryer according to one of claims 24 or 25, characterized in that at least one magnet is arranged on the mast.

27. rotary clothes dryer according to one of claims 24 to 27, characterized in that at least one magnet is mounted displaceably and / or rotatable and / or pivotable.

28. rotary clothes dryer according to one of claims 24 to 27, characterized in that at least one magnet is designed as an electromagnet.

29. rotary clothes dryer according to one of claims 24 to 28, characterized in that at least one magnet is designed as a permanent magnet.

30. rotary clothes dryer according to one of claims 24 to 29, characterized in that arranged in the rest position, the north poles of magnets arranged on the south poles of magnet arranged on the mast and / or the south poles of magnets arranged on the arms the north poles of the mast Magnets facing each other.

31. rotary clothes dryer according to one of claims 24 to 30, characterized in that to assist the Aufziehvorganges - in particular for the deflection of the arms from the rest position out -, the north poles of magnets arranged on the arms of the north poles arranged on the mast magnet and / or the south poles of magnets arranged on the arms can be turned into the south poles of magnets arranged on the mast.

32. rotary clothes dryer according to one of claims 24 to 31, characterized in that the magnets to support the Aufziehvorganges - in particular for the deflection of the arms from the rest position out - are umpolbar.