EP1766123B1 - Umbrella-like laundry drier - Google Patents

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

The invention relates to a rotary dryer with a mast and relative to the mast from a rest position in a Aufspannstellung pivotally mounted arms which carry at least one clothesline, a coupling means for releasably securing the arms is provided in the rest position.

In known laundry umbrellas of this type (eg U.S. Patent 2,289,450 ) requires the clamping of the fabric screen in the initial phase a relatively high effort 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 in the garment screen according to the EP-B1-0 113 789 achieved in that, when the laundry umbrella is folded in, the articulation axes of the spreading arms on the arms are clearly outside the imaginary connecting line between the pivot axes of the arms and the holding axes of the spreading arms. 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 pivot axes of the spreader arms on the arms again can not be moved too far outwards, otherwise the arms in the folded state in a relatively large Distance from the mast come to rest, which would increase the space requirement of the folded laundry screen.

This disadvantage is tried in the laundry screen according to the EP-B1-0 649 935 to 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 causes a transverse displacement of the spreader arms from their retracted rest position.

As a result, a light 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, through the EP-A2-0 898 007 a laundry screen 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.

After EP 0 898 006 A2 a rotary clothes dryer has been known in which the clamping in the initial phase is facilitated by the fact that a, the second holding star adjacent, engageable with the folded support arms spreading device is provided for pivoting the support arms in a slightly open position, which at least one on the outside arranged the mast, by pulling on 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.

Out US 4,830,202 is a collapsible laundry screen known, in which - for individual items of laundry or small clothes the Do not have to stretch the laundry screen every time - a part of the laundry line can be pulled out laterally from a support arm of the laundry umbrella. So that the extended part of the laundry line does not sag, the associated support arm can be locked.

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

The object is achieved by a laundry screen, which is characterized in that a jig for transferring the arms from the rest position is provided in the Aufspannstellung and that the coupling device automatically releases the arms in the rest position defined arms upon actuation of the jig.

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.

The automatic release can be realized, for example, by 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 can. Preferably have arranged on the arms-run-up slopes.

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 the non-positive connection takes place automatically when the clothes dryer is closed. 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, with a running from inside to outside 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 Supporting arm is formed latching and on which a second starting area for the attached to the support arm or support arm counter body, which has a running from outside to inside run-on slope provided. For safe operation is a stop on the holding star for the latching hook or the starting arm of the latching hook Limiting the downward movement of the starting arm of the latching hook provided.

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, 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 will be a ensures absolutely 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 screen, height adjustable as desired. 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.

Fig.1

eine schematisierte Ansicht einer geschlossenen Wäschespinne ohne Wäscheleine und nur zwei Trag- und Stützarme dargestellt,

Fig. 2

eine Teilansicht gemäß II in Fig. 1, wobei nur ein Tragarm andeutungsweise dargestellt ist,

Fig. 3

eine Ansicht gemäß der Richtung III nach Fig. 2,

Fig. 4

ein Schnitt gemäß der Linie IV-IV nach Fig. 3,

Fig. 5

eine Alternativlösung in einer Darstellungsform gemäß Fig.1,

Fig. 6

eine vergrößerte Teilansicht nach einem Ausschnitt VI in Fig. 5,

Fig. 7

eine Ansicht gemäß Fig. 6 nach Anheben des Schiebesternes über die Zugleine in der Situation der Spreizung,

Fig. 8 und 9

eine Alternativlösung entsprechend den Fig. 6 und 7,

Fig. 10

eine Draufsicht auf eine Wäschespinne gemäß einer weiteren Alternativlösung und

Fig. 11

die Situation der Ausführungsform gemäß Fig. 10 im Augenblick des Spreizens der Tragarme.

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:

Fig.1

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

Fig. 2

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

Fig. 3

a view according to the direction III after Fig. 2 .

Fig. 4

a section according to the line IV-IV after Fig. 3 .

Fig. 5

an alternative solution in a representation according to Fig.1 .

Fig. 6

an enlarged partial view of a section VI in Fig. 5 .

Fig. 7

a view according to Fig. 6 after lifting the sliding star on the tug in the situation of spreading,

8 and 9

an alternative solution according to the 6 and 7 .

Fig. 10

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

Fig. 11

the situation of the embodiment according to 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, which 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 abuts this against the contact surface 12. The starting arm 21 is rounded at its end semicircular.

In the Fig. 1 to 4 the clothes dryer is shown in the idle state, ie 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 rotary 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 Fig. 5 to 9 the pivot axis 7 of the Spreizarmes 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 according to Fig. 7 is reached. 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 represents the coupled state as the opposite north poles and south poles attract each other.

The 8 and 9 make analogous to the FIGS. 7 and 6 a simplified embodiment, however, the reduced number of magnets is purchased with a lower clamping force at rest.

In Fig. 10 is another alternative solution shown 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 turning 38 by 90 ° both to the left or to the right, the position becomes as in Fig. 11 achieved reached. 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 REFERENCE NUMBERS

1

mast

2

sliding star

3

holding star

4

Beam

5

swivel axis

6

spreading arm

7

articulation axis

8th

holding axis

9

spreader

10

extension

11

sleeve

12

approach surface

13

constriction

14

start-up range

15

against body

16

starting slope

17

opening

18

detent arm

19

latch hook

20

axis of rotation

21

Anlaufarm

22

rope

23

direction

24

guide opening

25

fastening point

26

feather

27

direction

28

hook

29

direction

30

slope

31

compression spring

32

Slot guide

33

magnet

34

North Pole

35

South Pole

36

direction

37

scope

38

rotation

39

attack

40

downward movement

Claims (13)

1. Umbrella-like laundry drier with a mast (1), arms (4) pivotably hinged relative to the mast from a resting position into an opened position bearing at least one washing line, and with an opening device for transferring the arms (4) from the resting position into the opened position, wherein a coupling means is envisaged for the disconnectable fixing of the arms in the resting position, characterised in that
   the coupling means comprises at least one rotatable, pivotable or displaceable arresting hook (19) and is designed in such a way that it can automatically release arms (4) fixed in the resting position upon actuation of the opening device, wherein the arresting hook (19) is arranged on one of the arms (4), on the mast (1) or on a holding star (3) arranged on the mast (1), and that the coupling means comprises a disconnection device for releasing the arms (4) with a means for displacing, rotating or pivoting the arresting hook (19) and/or the counterbody.
2. Umbrella-like laundry drier according to claim 1, characterised in that the coupling means comprises as many arresting hooks (19) as it has arms.
3. Umbrella-like laundry drier according to one of the claims 1 or 2, characterised in that a counterbody is envisaged, into which the arresting hook (19) is hooked in the resting position.
4. Umbrella-like laundry drier according to one of the preceding claims, characterised in that the means for displacing and/or rotating and/or pivoting the arresting hook (19) comprises a cone or taper, displaceable in the longitudinal direction of the mast (1).
5. Umbrella-like laundry drier according to one of the preceding claims, characterised in that the coupling means fixes the arms (4) directly and/or indirectly on the mast (1) and/or on an expansion body (9) in the resting position.
6. Umbrella-like laundry drier according to one of the preceding claims, characterised in that the coupling means automatically fixes the arms (4) when the arms (4) reach the resting position.
7. Umbrella-like laundry drier according to one of the preceding claims, characterised in that an expansion device for deflecting the arms (4) from the resting position is envisaged, wherein the expansion device comprises at least one start-up slope (16) - preferably arranged on the arms - and a displaceable and/or pivotable and/or rotatable forcing element that acts against the start-up slope.
8. Umbrella-like laundry drier according to claim 7, characterised in that the start-up slopes (16) are part of the counterbody or the arresting hook (19).
9. Umbrella-like laundry drier according to one of the claims 7 or 8, characterised in that the forcing element is part of the disconnection device - in particular of the taper and/or the cone.
10. Umbrella-like laundry drier according to one of the claims 1 to 13, characterised in that at least one spring element is envisaged for pre-tensioning the arresting hook (19) and/or the counterbody.
11. Umbrella-like laundry drier according to one of the preceding claims, characterised in that a drawing line for opening the umbrella-like laundry drier is envisaged and that the coupling means can be operated with the drawing line.
12. Umbrella-like laundry drier with a mast (1), arms (4) pivotably hinged relative to the mast from a resting position into an opened position bearing at least one washing line, and with an opening device for transferring the arms (4) from the resting position into the opened position, wherein a coupling means is envisaged for the disconnectable fixing of the arms in the resting position, characterised in that
    the coupling means is designed in such a way that it can automatically release the arms (4) fixed in the resting position upon actuation of the opening device, and the coupling means comprises at least one magnet (33) mounted in a displaceable, rotatable or pivotable way, wherein the north poles (34) of magnets (33) arranged on the arms (4) face the south poles (35) of magnets (33) arranged on the mast (1) and/or the south poles (35) of magnets (33) arranged on the arms (4) face the north poles (34) of magnets (33) arranged on the mast (1), and that the north poles (34) of magnets (33) arranged on the arms (4) can face the north poles (34) of magnets (33) arranged on the mast (1) and/or the south poles (35) of magnets (33) arranged on the arms can face the south poles (35) of magnets (33) arranged on the mast (1) for supporting the opening process and for deflecting the arms (4) from the resting position.
13. Umbrella-like laundry drier according to one of the claims 16 to 19, characterised in that the magnets (33) can be repoled for supporting the opening process - in particular for deflecting the arms from the resting position.

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