EP1500350B1 - Locking device - Google Patents

Abstract

Shoe (1) comprises a sole (4) consisting of an outsole (2) connected to an insole (3), an upper part (5), and a ventilation device for the shoe interior (6). A foot bed insert (7) formed by at least one molded layer (8) and arranged in the shoe interior has in a heel region (16) a pump chamber (17) opening into the insole and in a front region (25) a ventilation zone (27) connected via at least one flow channel (30). The pump chamber is fluidically connected via an inlet opening (20) to the atmosphere surrounding the shoe. Preferred Features: The molded layer is made of a closed-cell plastic, especially polyurethane, or bound cork, leather or plastic recycling granulate.

Description

The invention relates to a locking device for fixing two pieces of furniture together according to the preamble of claim 1.

Extension walls in their most varied embodiment are well known. Box-shaped office or shelf walls are also very popular. These can be assembled, for example, from individual container-shaped or generally box-shaped basic units, which are also sometimes referred to as modules, with high variability. The modules can be left open, for example, but can also be provided on the front with a variety of flaps. Likewise, drawer elements can be installed etc.

A modular furniture system is e.g. from document US-A-4903451.

In such a modular wall-mounted shelf wall, for example, the problem then arises, the individual modules as simple as possible, but effective to fix each other so that overall results in a stable overall construction.

The object of the present invention is therefore to provide an improved locking system for furniture pieces, in particular for box-shaped modular or basic units, in order to fasten or fix such individual parts to each other.

The object is achieved according to the features specified in claim 1. Advantageous embodiments of the invention are specified in the subclaims.

According to the present invention, a highly efficient connection system is provided with which the individual pieces of furniture to be joined can be provided from home. The basic principle is such that any pieces of furniture provided with corresponding connecting and locking means, for example box-shaped or container-shaped basic or modular units, can be placed on top of each other in order then to actuate the locking or locking device provided there, for example only on the attached modular unit both pieces of furniture are firmly connected.

The structure is preferably such that not only similar or functionally identical, but in particular identical locking base portions are provided on each piece of furniture, which are positioned so that with appropriate structure, the provided on the two pieces of furniture locking elements each come to lie congruent to each other. With the same structure can then alternately, depending on which locking base portion is more easily accessible, at this the locking with the other locking portion are made. Preferably, the locking is effected only by pressing and twisting an actuating member alone.

Preferably, a bayonet-type locking mechanism is provided. For this purpose, certain projections or recesses may be formed on the individual, mutually interacting sections and elements in order to realize the desired bayonet-type locking mechanism. Preferably provided locking arms may consist of a central central portion of the rotatable locking member radially outwardly projecting arms. In the base unit, two locking arms aligned in diagonal extension are preferably provided. In a preferred embodiment, however, the locking element is provided with cross-shaped locking arms. This offers, for example, the possibility that the container to be built on each other can be mounted on each other in a rotated position by 90 °, so that in a box-shaped container, for example, the opening side aligned not only forward, but also to the left, to the right or to the rear can be. This does not have an adverse effect on the effectiveness of the locking device.

In a particularly preferred embodiment, the individual locking portions are formed such that they correspond to the shape of a passage opening in a pot-shaped bottom portion of the respective locking element and in a basic position in height of this Passage opening to come to rest. The entire locking base portion is rotationally mounted in a furniture part. Therefore, the equipped with such a locking element furniture part is quasi closed in a continuous outer surface, since the locking arms of a locking element come to rest at the level of the passage opening, this opening is thereby virtually covered.

In a further development of the invention, a spring device is also provided, which acts on the adjustable locking or rotating part in its unlocked basic or initial position. This ensures that the locking arms come to rest in their basic or initial position exactly in the plane of the passage opening in the cup-shaped bottom of a locking base portion. This also has the advantage that in an unlocking then - when the locking arms are rotated in the release position, wherein they come to rest in this position congruent to the passage opening in the cup-shaped bottom portion of a locking base - is raised by the spring action, the corresponding locking element in its unlocked position. In this position, yet another clamping mechanism is provided, which then holds the rotary member in this axial position.

Figur 1 :

eine schematische perspektivische Darstellung einer Möbelwand, die aus mehreren Containerelementen zusammengesetzt wird;

Figur 2 :

eine schematische perspektivische Darstellung eines in einem Containerboden eingebauten ersten Verriegelungselementes;

Figur 3 :

eine entsprechende perspektivische Darstellung einer zweiten identischen Arretiereinrichtung, die in einer Deckwand eines Containermöbel eingebaut ist und im arretierten Zustand mit der in Figur 2 wiedergegebenen ersten Arretiereinrichtung zusammenwirkt.

Figur 4 :

eine schematische Draufsicht auf eine erfindungsgemäße Arretiereinrichtung;

Figur 5 :

eine Unteransicht auf eine erfindungsgemäße Arretiereinrichtung;

Figur 6 :

eine schematische Querschnittsdarstellung durch eine erfindungsgemäße Arretiereinrichtung;

Figur 7 :

eine zu Figur 6 entsprechende Querschnittsdarstellung, bei der der Querschnitt jedoch diagonalförmig durch ein kreuzförmiges Arretierelement läut;

Figur 8 :

eine entsprechende Querschnittdarstellung zu Figur 7, jedoch in Arretierstellung, bei der zwei spiegelbildlich zueinander liegende Arretiereinrichtungen und damit zwei Böden zweiter Möbelstücke aneinander fixiert sind;

Figur 9:

eine schematische perspektivische Darstellung des erfindungsgemäßen Drehteils mit im Querschnitt leicht dachförmig gestalteten Arretierarmen;

Figur 10:

eine schematische Draufsicht auf ein leeres topf- oder gehäuseförmiges Festteil mit Arretiervertiefungen in den verbleibenden Arretiervorsprüngen zur Erzielung eines bajonettartigen Verriegelungsmechanismuses.

Further advantages, details and features of the invention will become apparent from the described with reference to drawings embodiment. This shows in detail

FIG. 1:

a schematic perspective view of a furniture wall, which is composed of several container elements;

FIG. 2:

a schematic perspective view of a built-in a container floor first locking element;

FIG. 3:

a corresponding perspective view of a second identical locking device, which is installed in a top wall of a container furniture and cooperates in the locked state with the reproduced in Figure 2 first locking device.

FIG. 4:

a schematic plan view of an inventive locking device;

FIG. 5:

a bottom view of a locking device according to the invention;

FIG. 6:

a schematic cross-sectional view through a locking device according to the invention;

FIG. 7:

a corresponding to Figure 6 cross-sectional view, in which the cross section but diagonally ringing by a cross-shaped locking element;

FIG. 8:

a corresponding cross-sectional view of Figure 7, but in the locked position, in the two mirror-image locking means and thus two floors second furniture pieces are fixed together;

FIG. 9:

a schematic perspective view of the rotary member according to the invention with slightly roof-shaped in cross-section locking arms;

FIG. 10:

a schematic plan view of an empty pot- or box-shaped fixed part with locking recesses in the remaining locking projections to achieve a bayonet-type locking mechanism.

In FIG. 1, three box-shaped or container-shaped pieces of furniture 1 built on one another and fixed together are shown in accordance with the schematic perspective illustration.

In Figure 1, two larger-sized pieces of furniture 1 are shown building on each other, whose depth and height is the same size, the corresponding end face is thus formed square. The length is twice as long as the height or depth. In the vertical side walls 1a, a locking device 9, which will be discussed in more detail below, is installed in the center. The same applies to the opposite vertical side wall 1b. Similarly, in the lower floor board 1c with the overhead deck board 1d also locking means 9 are installed, and, since the floor board 1c and the cover board 1d are twice as large as the end-side side walls 1a and 1b, there are two locking devices 9 are provided, which are arranged centrally in the transverse direction of the rectangular bottom and top board and thereby have a longitudinal distance corresponding to half the length of these board-shaped wall elements, wherein the distance from Center of a locking device 9 to the front end of the rectangular bottom is a quarter of the total length of the board.

Only to illustrate different possible design variants is further shown that in Figure 1 above another container element 1 'is constructed, which has only half the length to the lower lying container elements 1 and in the bottom board 1c as the deck board 1d only one centrally arranged locking device 9 has.

Already by this structure it can be seen that in each case the built in a floor board 1 d locking device 9 in plan view immediately adjacent and congruent to a respective locking device 9 comes to rest, which is provided in an underlying deck board 1 d a next box- or container-shaped piece of furniture 1.

According to the illustrated embodiment, all mentioned locking devices 9 are functionally identical and preferably even identical, with two mirror-inverted locking devices 9 cooperating in each case and forming the locking device according to the invention.

In the following, reference is made to FIGS. 2 and 3, wherein in FIG. 2, in schematic perspective representation, a locking device 9 is shown with a view of the upper side and FIG. 3 shows a corresponding locking device 9 with a view rather on the underside, namely two locking devices 9 cooperate, for example, at the point marked "A" in Figure 1, to connect an overhead floor board 1c with an underlying deck board 1d two furniture containers 1 firmly. As will be discussed below, then not only the two boards 1c and 1d are in use along a common mounting plane 11 in use, but also the two locking devices according to Figure 3 and Figure 4 touch with their bottom surfaces or are positioned only at a small distance. In other words, the two locking devices 9 shown in FIGS. 3 and 4 are brought into contact or in direct contact in the attachment direction characterized by the arrow. The said cultivation level 11 corresponds for example to a horizontal plane. It is therefore already apparent from FIGS. 2 and 3 that the respectively cooperating locking devices 9 are of cup-shaped design, that is to say comprise a pot-shaped fixed part, housing part or base part 15 which has a pot-shaped or cylindrical bounding wall 15a and a bottom 15b.

In the illustrated embodiment, each locking device 9 also comprises a peripheral edge or flange 15c, which comes to lie in the embodiment shown in the amount of the overhead pot opening 17, ie opposite the lower bottom 15b.

Each of the locking devices 9 has a total of a shape deviating from a circular shape in order ultimately to be installed against rotation in a shelf or floor board can. In the illustrated embodiment, the cylindrical boundary wall 15a of the cup-shaped lock 9 is not against rotation per se. However, the upper flange-shaped edge 15c is elliptical. According to the material thickness of this edge, an elliptical recess in the respective furniture board 1c and 1d is incorporated in addition to a total of the board passing through cylindrical bore 19, so that after inserted locking device 9, a rotation is not possible. Otherwise, however, for example, one or two screws 21 penetrating the flange-shaped edge 15c could also be screwed into the respective board 1c or 1d in order to prevent twisting even in the case of a circular edge or flange 15c.

Incidentally, however, the cup-shaped design of the base or fixed part 15 could also be used, for example. have on the outer circumference deviating from a cylindrical cross-section shape to ensure in a correspondingly elaborate bore 19 through a shelf through a twist-proof seat. However, this is more complicated.

FIG. 4 shows a schematic axial plan view and in FIG. 5 a schematic axial bottom view of the illustrated locking device 9. From Figure 5 it can be seen that the disc-shaped bottom 15b of the locking device 9 has a cross-shaped recess 23. Starting from a central central axis line 25, this recess 23 is in the illustrated embodiment formed symmetrically, so that the radially extending from the central axis 25 arm-shaped opening portions 23 'have the same radial length and the same transverse to the radial direction extending width.

In the cup-shaped interior 27 of each locking device 9, i. in the pot-shaped interior 27 of the base or fixed part 15 of a respective locking device 9, an adjusting member 29 is arranged, which is hereinafter also partially referred to as a rotary member 29. This rotating part 29 comprises a cover cap-shaped actuating part 29a, a driver 29b located below it and axially adjoining the actuating part 29a and a locking element 29c arranged on the underside of the driver 29b. The above-mentioned portions 29a to 29c of the cut member or rotary member 29 thus formed are rotatably fixed to each other. The thus formed rotary member 29 may also be integrally formed. But it is also possible that the driver 29b to a small extent axially, i. telescopically retractable and extendable, in other words, the axial length of the driver is adjustable.

The locking element 29c comprises in the illustrated embodiment, starting from the central axis 25, four locking arms 31, which are also designed by their shape and their arrangement again cross-shaped, so far correspond to the cross-shaped recess 23. However, the width and length of these locking arms 31 are designed so that they are dimensioned correspondingly smaller, so that even in the normal position shown in Figure 3 or 5, these locking arms 31 are surrounded by a circumferential gap 33, even if they are in height of the bottom 15b in the im Floor located recess 23 are arranged. As a result, a total game is achieved, which will be discussed below.

As can be seen from the cross-sectional representations according to FIGS. 6 et seq., A spring device 35 is provided in the interior space 34, which is on the one hand on the cup-shaped housing, ie on the bottom 15 b of the base or fixed part 15, and on the other side on the underside of the cover cap-shaped Operating parts 29a supported. Since the rotary member 29 captive in the cup-shaped housing part (hereinafter partially referred to as fixed part 5) is held, the rotary member 29 can not be pushed out of the cup-shaped receiving space 34 or fall out. For this purpose, for example, in the amount of the flange-shaped edge 15c at least two, preferably a plurality of circumferentially offset projections or a circumferential closed stop edge 37 is formed, on which the cover cap-shaped actuating member 29a would strike. The axial longitudinal extension of the rotatable adjusting member or rotary member 29 is such that in the basic position shown in FIG 6, the arm-shaped and radially projecting locking arms 31 come to lie exactly at the level of the cross-shaped recess 23 in the bottom 15b. The aforementioned spring device 35 is adjusted so that the biasing force of the spring exerts on the rotary member 29 in the direction of the overhead flange-shaped edge 15c adjusting forces, but only so far until the cover cap-shaped actuating member 29a reaches the basic position shown in Figure 6. In this basic position, another axial displacement path still remains until the cover-cap-shaped actuating part 29a abuts the upper edge 37. In the position shown in Figure 6 occur However, the formed on the peripheral edge of the cover cap-shaped actuating member 29a one or more (indicated in Figure 9) projections 38 with the introduced in the inner wall of the cup-shaped central portion of the fixed part 15 at corresponding points recesses in interaction. As a result, a pre-adjustment and alignment of the cross-shaped locking arms 31 is given because exactly in that position, the locking arms 31 can be brought into the same cross-shaped orientation, in which the cross-shaped recess 23 is aligned. The engaging in the recess 43 in the peripheral wall 15a of the fixed part 15 projections 38 additionally generate a certain frictional engagement. Also by the spring force of the spring means 35 per se, the male or rotary member 29 can not be adjusted by the force of the spring alone, as shown in Figure 6.

The above-described structure also has the consequence that upon delivery correspondingly shaped container, the cover cap-shaped cover 29 quasi at a small distance below the Niveaufläche the outer boundary plane le a corresponding wall of the box-shaped container and the opposing level surface 1 f through the floor and in the recess 23 in the bottom 15b seated locking element 29c is virtually closed over the entire surface.

FIG. 7 essentially corresponds to the illustration according to FIG. 6, but with the difference that in FIG. 7 the rotary part or adjusting element 29 is pressed against the force of the spring-type storage device 35 in the direction of the bottom 15b, so that the locking element 29c is in contact with the opposite one Arresting arms 31 is pushed over the surface of the bottom 15b down, in that position in which then the actual locking is made. Since the sectional view according to FIG. 6 and FIG. 7 is diagonally represented by the cross-shaped locking element 29c, the total length of the locking elements 31 can only be seen in FIG. 7, but not in FIG.

If two containers according to FIG. 1 are placed on top of one another in the correct position and are to be fixed to one another, then two explained locking devices 9 are to lie directly congruent to one another in accordance with the illustration according to FIG. In this case, the two adjoining arresting devices 9 are aligned mirror-inverted to their central mounting plane 11, i. with their two floors lying on top of each other. The side on which the bottoms come to lie in each case represents the respective outer side of a corresponding container, so that in each case the cover cap-shaped actuating part 29a is freely accessible from the inside of a container.

In order to perform a locking of two furniture, now in one of the two locking devices 9, for example in the top in Figure 8 locking device 9, there freely accessible cover cap-shaped actuating member 29 is pressed against the force of the spring latch 35. Since the two cross-shaped locking elements 29c of the upper and lower locking device 9 are superimposed, the lower locking element 29c is now moved axially downward by pressing in the upper rotary part 29 or the locking elements 29C belonging to the lower locking device 9 adjusted by the telescopically extendable and retractable driver unit 29a (if such a mechanism is provided), that with the upper actuating member 29a rotatably connected locking member 29c with its four radially projecting locking arms or fingers 31 in the interior 34 of the other shelf, That is, located in the lower shelf fixed part 15, and immediately adjacent to the cup-shaped bottom 15c of the bottom lying in Figure 8 second locking device 9. Thereafter, the upper locking device 9 associated actuating part 29a axially rotated, so are the rotary part lying to the top 29th belonging locking arms 31 behind the remaining locking projections 41, which are formed by the remaining bottom portions in the bottom 15 b of the bottom in Figure 8 locking device 9. These locking projections 41 are the remaining material portions in the bottom 15 b, which are each formed in the direction of rotation about the central axis 25 twisted to the cross-shaped recesses 23.

Since, as mentioned, the recess 23 is dimensioned larger than the locking elements 29c movable therethrough, and also in other twisting or locking position, the front ends of the locking elements 29b at the radial distance in front of the cooperating boundary wall 15a of the base or fixed part 15 ends , Sufficient clearance is guaranteed, for example, to compensate for tolerance errors in the fixed connection of two containers to each other.

Further, the underside of these locking projections 41 of the bottom 15b and / or the adjacent contact surface of the locking arms 31 is preferably roof-shaped in cross-section designed so that with increasing rotational movement of the neutral starting position from an increasingly larger Verspanni setting between the adjusting member 29 of a locking device 9 and the corresponding locking projections 41 in the bottom 15b of each cooperating second locking device 9 sets.

9, the slightly roof-shaped in cross-section or provided with a preferably central radially extending slightly rib-shaped projection 42 locking arms 31 can be seen, in Figure 10 is a plan view of the empty cup-shaped housing or fixed part 15 is shown without inserted adjusting member or rotary member 29, so that the corresponding slightly groove-shaped recess 43 can be seen here particularly well. This results in a bayonet-type locking mechanism, namely, when in the final locking position, for example, slightly rib-shaped or gable projections or projections 42 on a respective Arretierarm 31 then engage in the corresponding recesses 43 on the inside of the bottom 15b of the cup-shaped housing cover 9a of each second locking device , Since the rotary member is provided with a rotational movement supporting gripping rib 45 or a gripping projection 45, can be read directly by the orientation of this gripping projection 45, whether a locking adjustment was made or not.

Finally, on the inside of the peripheral wall 15a of the pot-shaped housing part 9a also vertical recesses or vertical projections may be formed, which are provided with corresponding vertical projections or vertical recesses on the outer periphery of the cover cap-shaped rotary member 29 cooperate and thus also still support the bayonet-type locking mechanism. As a result, it is also immediately noticeable to the person undertaking the locking when the adjusting member 29 has reached the final locking position.

The embodiment has been explained for the case that the recess 23 in the bottom 15c is cross-shaped and also the locking arms 31 are designed in a corresponding cross-shaped. In principle, however, it would also be conceivable that the recesses, such as the locking arms, are designed only in the form of a diagnosis or a bar.

Likewise, instead of the described spiral spring device 35 and the pot-shaped housing part 15, which is preferably made of plastic, elastically deformable internal plastic arms may be cast, which exert the desired biasing forces on the adjusting member 29.

A release can be made as easy as the lock again. Exactly that rotary member 29, which has been used for locking, is now turn back so turned or further rotated until the locking arms 31 come to rest in the correct position to the cross-shaped passage opening 23 in the two superposed bottoms 15b. Due to the support of the spring force memory, the pressed-in rotary part is then moved back into its raised position in FIG.

Through the roof-shaped ramp surfaces on the locking arms 31 or otherwise obliquely or wedge-shaped configured Run-up surfaces can be generated with increasing rotational movement an increasingly stronger, axially mutually directed clamping force between the two cooperating locking devices 9. Each of the two locking devices 9 is firmly anchored to the associated piece of furniture, for example on a floor board 1c and a cover board 1c located underneath. Since in each case the flange-shaped peripheral edge 15c comes to rest on the opposite inner side of the container, neither of the two locking devices can be pulled out of its bore in the associated shelf even with increasingly larger mutually facing locking forces. Each of the two locking devices 9 is held by the flange-shaped edge on the associated shelf.

Claims (16)

1. Locking arrangement for fixing two items of furniture to one another, in particular by connecting two side walls (1c, 1d) in each of which a locking device (9) can be fitted, having the following features

   - the locking arrangement comprises two locking devices (9),

   - the two locking devices (9) are designed to be functionally identical,

   - each locking device (9) has a cup-shaped fixed part (15),

   - a cutout (23) is formed in the associated bottom (15b) of the cup-shaped fixed part (15),

   - the cutout (23) comprises cutout sections (23') extending radially outwards from a central axis (25) which passes axially through the fixed part (15),

   - at least two radially outwardly extending cutout sections (23') arranged at regular angular intervals from one another emanate from the central axis (25),

   - a rotating part (29) acting as an adjusting member (29) is provided in the interior (27) of the cup- or housing-shaped fixed part (15),

   - the rotating part (29) comprises an actuating part (29a) having a locking element (29c) situated axially offset in the direction of the bottom (15b),

   - the locking element (29c) has a configuration comprising radially outwardly projecting locking arms (31) so that the locking element (29c) thus formed can be guided axially through the cutout (23), and

   - in order to effect locking, two locking devices (9) facing one another by way of their bottom region can be fixed to one another by pressing in the adjusting member or rotating part (29) of one locking device (9) so that the associated locking element (29c) can be guided through the cutout (23) in the bottom (15b) of its own locking device (9) and through the corresponding cutout (23) in the bottom (15b) of the adjacent, second locking device (9) and, by means of a subsequent twisting movement, can be latched behind the locking projections (41) formed between the cutout sections (23') and belonging to the bottom (15b) of the other locking device (9).
2. Locking arrangement according to Claim 1, characterized in that the locking element (29c) and the associated cutout (23) in the bottom (15b) of a locking device (9) are shaped and dimensioned so that the corresponding cutout (23) is made larger by the size of a gap (33) which extends around the locking element (29c).
3. Locking arrangement according to Claim 1 or 2, characterized in that the cutout (23) in the bottom (15b) is cross-shaped.
4. Locking arrangement according to Claim 3, characterized in that the locking element (29c) is cross-shaped.
5. Locking arrangement according to one of Claims 1 to 4, characterized in that the locking action is formed in the manner of a bayonet fastening.
6. Locking arrangement according to one of Claims 1 to 5, characterized in that the locking element (29c) comprises a plurality of radially projecting locking arms (31).
7. Locking arrangement according to Claim 6, characterized in that the locking arms (31) are at least slightly roof-shaped in cross section parallel to the central axis (25) and/or are provided with a projection or an elevation (42), in particular a rib-like projection (42).
8. Locking arrangement according to Claim 6 or 7, characterized in that the inner side of the housing is provided with respective depressions (40) or projections which, in order to achieve a bayonet-type locking action, interact, at least in the locking position, with a corresponding projection (38) or a corresponding depression on the locking arms (31) and/or on a cover cap-shaped actuating part (29), which is a rotating part (29).
9. Locking arrangement according to one of Claims 1 to 8, characterized in that the adjusting member (28) has a cover cap-shaped actuating part (29a).
10. Locking arrangement according to Claim 9, characterized in that at least one projection (38) is provided on the peripheral edge of the cover cap-shaped actuating part (29a) and a corresponding depression (40) is provided on the cylindrical inner side of the surrounding wall (15a) of the cup-shaped fixed part (15), or vice versa, the locking projection (38) engaging in the depression (40) in the locking position and/or in the release position.
11. Locking arrangement according to one of Claims 1 to 10, characterized in that a spring device (35) is provided in the interior (34) of the cup- or housing-shaped fixed part (15), this spring device applying pressure to the adjusting member or rotating part (29) so as to move it away from the associated bottom (15b).
12. Locking arrangement according to one of Claims 1 to 11, characterized in that the adjusting member or rotating part (29) is held captively in the interior (34) of the cup- or housing-shaped fixed part (15).
13. Locking arrangement according to one of Claims 1 to 12, characterized in that each locking device (9) is anchored securely against rotation in an associated wall (1a-1d) of a furniture part, in particular a box- or container-shaped furniture part.
14. Locking arrangement according to Claim 13, characterized in that overall the locking device (9) deviates from a rotational shape.
15. Locking arrangement according to one of Claims 1 to 14, characterized in that the cup-shaped locking housing (9a) is provided, on the side situated opposite the associated bottom (15b), with a peripheral, flange-shaped edge (15c).
16. Locking arrangement according to Claim 15, characterized in that the flange-shaped edge (15c) deviates from a circular shape, preferably being oval-shaped.

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