EP1930284A1 - Connector assembly and method for connecting two wall elements of a lift cabin - Google Patents

Abstract

The device has a stiff plate element (1) with two edge regions (1.1, 1.2) for resting on two wall surfaces (10.3, 20.4 ) of plate-shaped wall elements (10, 20), and a middle region (1.3) connecting the regions. Another stiff plate element (2) includes a middle region (2.1) connecting third and fourth edge regions (2.3, 2.4). Tightening elements tighten the middle regions relative to one another in a direction, such that one of the wall elements is clamped between the edge regions (1.1, 2.3) and the other wall element is clamped between the edge regions (1.2, 2.4) in a tightened state. An independent claim is also included for a method for connecting two wall elements.

Description

The present invention relates to a connecting device for connecting two wall elements of an elevator car according to the preamble of claim 1 and the method carried out for connecting.

It is known to assemble a wall of an elevator car from two or more wall elements by connecting two adjacent wall elements with each other. This makes it possible, for example, to introduce the individual wall elements through a shaft door and assemble them in the elevator shaft to the larger cabin wall. Advantageously, a cabin wall, which is larger than the shaft door, can also be removed element by element from the elevator shaft in the opposite way.

For this purpose, the individual wall elements are successively brought into their final position and there, for example, attached to frame corner profiles, the elevator ceiling and / or the elevator floor by being bolted there, for example, or used in rails. In order to handle the individual wall elements, in particular to be able to embrace at their edges, generally remains between two adjacent wall elements in the final position, a gap through which both wall elements are spaced from each other. This gap can, for example, extend substantially in the vertical direction and then makes it possible to encompass vertical edge regions of the wall elements in order to arrange them next to one another or to remove them again from this position. Likewise, the gap may, for example, also extend substantially in the horizontal direction and then allows the arrangement of the wall elements one above the other.

Advantageously, the gap is then covered by an inner lining, such as a mirror or the like. Nevertheless, it impairs the rigidity of the broken cabin wall as well as its thermal and acoustic insulation against the elevator shaft.

Therefore it is, for example from the JP 03-192088 A , Known to subsequently close the gap between wall elements already bolted together via cross members with an intermediate piece. The rigidity of the cabin wall is essentially mediated by the additional cross member. However, the illustrated method is not suitable for joining wall elements of composite panels - for example, honeycomb composite panels or foam core composite panels - since they usually have no connection elements for attaching said cross member.

The WO 2005/031085 A1 discloses a connecting device according to the preamble of claim 1 for connecting plate-shaped wall elements without relation to an elevator car. The connecting device consists of a flange for resting on one side of two adjacent wall elements, a mating flange for resting on an opposite side of the two wall elements, and a web which connects the flange and mating flange with each other. The counter flange must be deformed for insertion into the gap and is designed to be elastic so that it snaps back after insertion into its original shape. The flange is also elastic and slightly dome-shaped, so that it flattens when inserted on one side and retracts the mating flange against the opposite side of the wall elements. Since the distance between the flange and the counter flange on the connecting web, the length of which according to the teaching of WO 2005/031085 A1 should correspond to the wall thickness of the wall elements to be connected, is substantially invariable and the two flanges engage behind the two sides of the wall elements in the assembled state and completely cover the gap between them, the counter flange can not be performed undeformed through the gap. Because its expansion covering the gap prevents insertion vertically through the gap. Even with an oblique insertion block one edge of the flange and the opposite edge of the mating flange insertion of the mating flange. Thus, the above-described elastic deformation of the flange and counter flange in the from WO 2005/031085 A1 known connection device for mounting inherently unavoidable.

Such a connecting device, in which the mating flange is massively deformed for insertion and must be correspondingly soft, and in which the flange and the mating flange are pulled only by the tensile force resulting from the elastic deformation of the flange against the sides of the wall elements, connecting the two Wall elements relatively soft with each other. In particular, the two wall elements can be displaced against each other under elastic deformation of the soft counter-flange in a direction perpendicular to the gap. Also in the plane of the wall elements in which they are connected to each other via the frictional contact between the flanges and the sides of the wall elements, the connecting means due to the weak, resulting only from the elastic deformation of the flange and the frictional limit limiting normal force transmitted only small forces. Overall, therefore, has a wall of interconnected with such a connecting device wall elements only a low rigidity.

Object of the present invention is to provide a connecting device for connecting two wall elements of an elevator car available, with which plate-shaped wall elements can be connected without integrated connection elements, which has a high rigidity, and which is mountable from the inside of the elevator car.

To solve this problem, a connecting device according to the preamble of claim 1 is further developed by its characterizing features. Claims 9, 10, 11 claim protection for a wall element arrangement, for an elevator car with the connection device as well as for an elevator car with the wall element arrangement, and claim 12 protects the corresponding method.

A connecting device according to the invention serves for the connection of a first, in particular plate-shaped wall element and a second, in particular plate-shaped wall element of an elevator car, which is adjacent thereto and is separated from the first by a gap. In this case, the gap may extend over the entire mutually facing end faces of the two wall elements. This allows the formation of simple end faces and a connection on the largest possible length. The gap can equally extend only over partial areas, which engage behind the Allow wall elements by hand or a mounting tool, while touching the wall elements in the remaining area with their end faces. In both cases, the connecting device advantageously extends over the entire gap length, which ensures maximum rigidity and advantageously isolates the elevator car thermally and acoustically against the elevator shaft. The gap widths may, for example, be in the range of 50 to 100 mm in order to allow the handrail to engage behind the wall elements.

A connecting device according to the present invention comprises a first plate element with a first edge region for resting on a first wall surface of the first wall element, a second edge region for resting on a second wall surface of the second wall element and a first central region connecting these two edge regions and covering the gap second plate element having a third edge region for resting on a third wall surface of the first wall element, a fourth edge region for resting on a fourth wall surface of the second wall element and a second middle region connecting these two edge regions and likewise covering the gap. In the mounted state, the first and third edge regions and the second and fourth edge regions thus form receiving grooves for receiving the mutually facing edge regions of the first and second wall element.

The first and second and the third and fourth wall surface of the first and second wall element are aligned in a preferred embodiment with each other. Likewise, the first and second and / or the third and fourth wall surfaces offset from each other and / or inclined. Thus, a connection device according to an embodiment of the present invention also interconnect mutually offset wall elements or wall elements which form an angle with each other.

According to the invention, the first plate element is then movably connected to the second plate element in a first direction, so that the above-mentioned receiving grooves are variable in their width. In this case, the connecting device comprises clamping means for clamping the first and the second central region against each other in the mentioned first direction. Due to the bracing, the first wall element can be clamped in the variable receiving grooves between the first and third edge regions and the second wall element between the second and fourth edge regions.

These features allow insertion of the second plate member connected to the first plate member through the gap by first sufficiently spacing the two plate members in the first direction. Then, with appropriate inclination, the second plate element can be introduced into the gap such that its edge regions engage behind the wall elements. Subsequently, the first and second central region are clamped by the clamping means against each other in the first direction. In this case, the receiving grooves close and thereby clamp the mutually facing edge regions of the two wall elements frictionally.

As a connecting device according to the invention no deformation of the second plate member for introduction into requires the gap, the connecting device can be made firmer and stiffer. In particular, at least one of the two plate elements parallel to the cleavage plane can be substantially rigid, ie be formed with high rigidity, and thus substantially increase the rigidity of the cabin wall perpendicular to the cleavage plane. In addition, the first, second, third and / or fourth edge region of the plate elements can be formed over a large area, so that large contact surfaces between the plate elements and the wall surfaces of the wall elements to be connected are present. As a result, the pressure load of the wall elements occurring per unit area is reduced, and the rigidity of the connection is increased. Preferably, the plate elements are each in one piece, for example made of steel sheets.

Advantageously, by the clamping means and higher normal forces between the edge regions of the plate elements and the wall surfaces of the wall elements generated and thus a higher frictional engagement can be taught. Also, this can increase the rigidity of the entire connection in all directions.

For this purpose, the clamping means comprise in a preferred embodiment, one or more bolts, preferably designed as clamping screws, which cooperate with associated internal threads, preferably with threaded nuts, and brace the two central regions of the plate elements against each other in the first direction when screwing. The clamping screws can pass through through holes in both plate elements and be screwed with separate nuts, which are located behind the screw heads facing away from the plate element. Likewise, the internal threads can also be in the screw heads be turned away plate member integrated by, for example, an internal thread is formed in the central region or a threaded sleeve fixedly connected to the central region. Conversely, instead of separate clamping screws, bolts connected to the central region of the one plate element projecting towards the central region of the other plate element can pass through a through-hole therein and with an internal thread present in this central region or behind this center region Threaded nut is screwed.

The variants of a screw connection described above can also be combined with each other. Thus, both middle areas may have mutually projecting, firmly connected to the central areas bolt, pass through the through holes in each other central area and are bolted behind a threaded nut. Additionally or alternatively, both central areas may have integrated internal threads or threaded nuts into which separate clamping screws are screwed. Such a combination may make it possible to use identical plate elements, with the first being rotated 180 ° relative to the second so that the studs and complementary threaded nuts are aligned with each other. Also independently of this combination, the first and second plate element may be of identical design, which reduces manufacturing, storage and assembly costs.

By using such a screw connection, the individual plate elements can be produced in a simple manner as semi-finished products and joined together to form the connecting device. The so interconnected Plate elements advantageously allow the insertion of the second plate element into the gap between the two wall elements so that the second plate element engages behind both edge regions of the wall elements which are adjacent to the gap and remote from the inside of the elevator cage, and then the mutual one running from the inside of the elevator cage Bracing the wall elements between the plate elements.

In addition or as an alternative to the screw connection, the tensioning means may comprise one or more elastic spring elements, in particular helical springs, which connect the two plate elements elastically with one another or pull one against the other. In a stress-free position, the spring elements space the plate elements in the first direction while at a distance which is less than the wall thickness of the wall elements, so that the spring elements in the assembled state, the two plate elements brace against each other and clamp the wall elements frictionally in the grooves. In addition, the spring members allow the above-described initial large spacing of the plate members from each other such that the second plate member can be inserted through the gap.

The first direction referred to below is the direction which extends substantially perpendicular to the cleavage plane. As a cleavage plane while the plane is referred to, which extends between the two opposite end faces of the adjacent wall elements.

In a preferred embodiment of the connecting device, the two central regions of the plate elements touch each other in the mutually strained state. This increases the rigidity of the connecting device, since both plate elements are positively supported against each other. In particular, in this embodiment, it may be advantageous to form the plate elements so that the first and third edge region and / or the second and fourth edge region from each other have a distance which is smaller than the wall thickness of the wall element to be clamped when the central regions touch and there is no wall element between the edge areas. This ensures that in the mounted state, the wall elements are clamped in the receiving groove formed by the edge regions of the two plate elements. The plate elements are designed so that when clamping the plate elements with the wall elements on the one hand no plastic deformation of the plate elements and on the other hand sufficient, but not unduly high clamping forces result. Manufacturing and assembly tolerances can be compensated thanks to the elasticity of the plate elements.

The first central region of the first plate element may have at least one outer oblique surface adjoining an edge region of this plate element, this oblique surface being inclined so that it leads away from the second plate element in the direction of the adjoining edge region. If such a connecting device is tensioned after insertion into the gap, then initially an edge of the corresponding wall element comes into contact with the said outer oblique surface. Since this is inclined to the first direction in which the plate elements to move to each other during clamping, the connecting device during clamping by the sliding on the edge of the wall element outer inclined surface and thus the Connecting means moves away from this edge until the edge region of the first plate member rests on the wall surface of the wall element.

In an advantageous embodiment, the first central region is connected to both the first and the second edge region via an outer oblique surface. In this case, during clamping, the connecting device pushes apart the two wall elements by the oppositely inclined outer inclined surfaces sliding on the edges of the two wall elements, thereby distancing the wall elements to an intended gap width. In addition, the outer inclined surfaces cause a correct positioning of the connecting device in the gap, whereby an appropriate distribution of the force exerted by the clamping means on the wall elements normal forces and thus the provided frictional engagement is ensured.

The same effects can also be achieved by other outer inclined surfaces formed in the second central region. Additionally or alternatively, therefore, the second central region may be connected to the third and / or fourth edge region of the second plate member via further outer inclined surfaces adjacent to the third and fourth edge region of the second plate member, said inclined surfaces are inclined so that they in Direction towards the respective adjacent edge area lead away from the first plate element.

In a further preferred embodiment, which may be combined in particular with the embodiment described above with at least one outer oblique surface, the first central region has two middle oblique surfaces, which in With respect to the above-defined first direction are each inclined in opposite directions, while the second central region also has two central inclined surfaces which have the same opposite inclinations as the central inclined surfaces of the first central region and are arranged so that in the clamped state of the two plate elements, the central inclined surfaces of first central region rest on the central inclined surfaces of the second central region. By the interaction of the central inclined surfaces during clamping, the two plate elements are positioned transversely to the longitudinal direction of the existing gap between the wall elements relative to each other and fixed immovably in said direction.

The inclined surfaces are advantageously produced by folding the middle regions. These bends in the longitudinal direction of the gap, i. in the longitudinal direction of the connecting device, also increase the rigidity of the connecting device in the longitudinal direction. For this purpose, at least one of the two plate elements may additionally or alternatively comprise further bends and / or reinforcements, in particular ribbing, material thickening or the like. Such bends and / or reinforcements can also be made in the transverse direction of the connecting device, i. be formed between the two wall elements.

In a preferred embodiment, a seal is arranged in the edge region of the first and / or second wall element facing the gap, which seals this edge region of the wall element against the first and / or second middle region of the plate elements. This allows a thermal, acoustic and / or climatic isolation of Elevator car can be improved against the elevator shaft. For this purpose, the seal can be arranged, for example, in receiving grooves in the end faces of the wall elements and have an elastic flange which, in the mounted state, presses against a central region, in particular against an outer oblique surface and thus seals the wall elements against the corresponding plate element.

For connecting the first and second wall element, a receiving groove formed by the first and third edge regions or by the second and fourth edge regions of the first and second plate elements is first pushed over an edge region of the first wall element. For this purpose, the plate elements which are sufficiently spaced apart from one another via the clamping means are made oblique to the gap plane and subsequently the second plate element is pushed through the gap so that its third and fourth edge regions engage behind the third or fourth wall surface of the first or second wall element. Now, the first and the second central region are clamped by the clamping means against each other in the first direction, for example, tightened by the clamping screws or the nuts are screwed onto fixed bolts. This closes the receiving grooves and the first wall element is clamped between the first and third edge region, the second wall element between the second and fourth edge region.

If, in a preferred embodiment, the connecting device has at least one of the outer oblique surfaces described above, then unless the connecting device is already in the final assembly position by chance and the wall elements are not already in place their intended distance from each other, at least one edge of a wall element in contact with at least one outer inclined surface which is inclined towards the first direction. With mutual approach of both plate elements in the first direction, effected by the tensioning means acting in this direction, slides this edge on said outer inclined surface, whereby the connecting means automatically positioned in its intended position in the gap, preferably centered, and the two wall elements to the intended Gap width are distanced from each other.

In this way, the first and second wall element can be connected to one another from the inside of the elevator car, whereby the second plate element loosely connected to the first plate element and movable in the first direction relative to the first plate element can be handled well via the first plate element and also over the inclined surfaces themselves positioned in the correct position. This allows for a quick, easy and inexpensive installation of the cabin wall, wherein the connecting device significantly increases their rigidity.

Fig. 1

eine Verbindungseinrichtung nach einer ersten Ausführung der vorliegenden Erfindung im verspannten Zustand zwischen zwei Wandelementen; und

Fig. 2

einen Zustand der Verbindungseinrichtung nach Fig. 1 beim Verbinden der beiden Wandelemente.

Fig. 3

eine Ausführungsform der Verbindungseinrichtung mit Schraubenfedern zum elastischen Verbinden der beiden Plattenelemente.

Other objects, features and advantages of the present invention will become apparent from the dependent claims and the embodiments described below. This shows, partially schematized:

Fig. 1

a connecting device according to a first embodiment of the present invention in the clamped state between two wall elements; and

Fig. 2

a state of the connecting device after Fig. 1 when connecting the two wall elements.

Fig. 3

an embodiment of the connecting means with coil springs for elastically connecting the two plate elements.

Fig. 1 shows in a horizontal section a connecting device according to a first embodiment of the present invention with a first plate member 1 and a second plate member 2, which is arranged in a gap 30 between a first wall member 10 and a second wall member 20 of a rear wall of an elevator car. First and second wall element 10, 20 are aligned in the embodiment with each other.

The second plate element 2, which in the exemplary embodiment faces an outer side of the cabin, lies with a third edge region 2.3 on a third wall surface 10.3 of the first wall element 10 and with a fourth edge region 2.4 on a fourth wall surface 20.4 of the second wall element 20 flat. Both edge regions 2.3, 2.4 are connected to each other by a second central region 2.1, so that the second plate element 2 covers the entire gap 30 and adjoining edge regions of the first and second wall elements 10, 20.

The second central region 2.1 of the second plate element 2 is bent approximately in its middle toward the first plate element 1 such that it comprises two oppositely inclined central inclined surfaces 2.2a, 2.2b, between which a to the third and fourth edge region approximately parallel intermediate region 2.2c extends. This intermediate region, together with the central oblique surfaces 2.2a, 2.2b, has a projection 2.2 which protrudes from the plane of the third and fourth edge region 2.3, 2.4 approximately in the middle of the second central region 2.1 toward the first plate element 1.

In addition to a positioning function explained in more detail below, the described projection 2.2 stiffens the second plate element in its longitudinal axis parallel to the longitudinal axis of the gap, ie in particular against bending about one in the plane of the drawing Fig. 1 horizontal axis.

In the in Fig. 1 illustrated assembled state is the first plate member 1 with a first edge portion 1.1 on a first wall surface 10.1 of the first wall element 10 and with a second edge region 1.2 on a second wall surface 20.2 of the second wall element 20 on a flat surface. Both edge regions 1.1, 1.2 are connected to each other by a central region 1.3, so that the first plate element 1 covers the entire gap 30 and adjoining edge regions of the first and second wall elements 10, 20.

The first central region 1.3 of the first plate element 1 has two outer oblique surfaces 1.4a, 1.4b, of which an oblique surface 1.4a adjoins the first edge region 1.1 of the plate element 1 and is inclined relative thereto, while the other inclined surface 1.4b adjoins the second Edge area 1.2 adjacent and inclined in opposite directions. Both outer oblique surfaces 1.4a, 1.4b each extend up to a part of the second central region 2.1 aligned with the third and fourth edge regions 2.3, 2.4, where they in parallel to the first and second edge region 1.1, 1.2 Verschraubungsbereiche 1.6 of the first center area 1.3.

The first central region 1.3 is bent so that it comprises two oppositely inclined central inclined surfaces 1.5a, 1.5b, between which extends to the first and second edge region in approximately parallel intermediate region 1.5c. This intermediate region 1.5c, together with the two middle oblique surfaces 1.5a, 1.5b, forms a groove 1.5 in the longitudinal direction of the first plate element 1, into which the projection 2.2 of the second central region 2.1 can engage positively.

The mean oblique surfaces 1.5a, 1.5b generating bevels of the first central region 1.3 stiffen the first plate member 1 in its vertical longitudinal axis, ie in particular against bending around one in the plane of the Fig. 1 horizontal axis.

Both plate elements 1, 2 are made of simple steel sheets, wherein their shape is produced by multiple folding.

The in the Fig. 1 and 2 Connecting device shown comprises clamping means 3 in the form of clamping screws 3.1, which pass through holes in the Verschraubungsbereichen 1.6 of the first plate member 1 from the cabin inside and are screwed into threaded sleeves 3.2, which are fixed in corresponding holes in the second plate member 2, for example, riveted or pressed. Instead of the separate threaded sleeves, internal threads can also be formed directly in the second plate element 2. For example, be cut or formed without cutting, be.

In an in Fig. 2 shown mounting state, the first plate member 1 from the second plate member 2 along a predetermined by the axes of the clamping screws 3.1 first direction X is relatively widely spaced, so that the second plate member 2 can be inserted into the gap 30 under appropriate inclination, that its edge regions 2.3, 2.4 the wall surfaces 10.3 and 20.4 of the two wall elements 10, 20 engage behind.

By screwing the clamping screws 3.1 into the threaded sleeves 3.2, the first central region 1.3 of the first plate element 1 is pulled in the first direction X against the second central region 2.1 of the second plate element 2 and braced against it, as shown in FIG Fig. 1 is shown. In this case, the projection 2.2 engages positively in the second central region 2.1 in the groove 1.5 in the first central region 1.3, wherein each of the middle inclined surfaces 1.5a and 2.2a and the middle inclined surfaces 1.5b and 2.2b touch each other and the first plate member 1 on the second Position plate element 2 automatically. This makes it possible to form the through holes drilled through by the clamping screws in the first plate element slightly larger than the screw diameter and thus compensate for tolerances between not exactly aligned through holes and threaded sleeves 3.2. In addition, the engaging in the groove 1.5 projection 2.2, the first and second plate member 1, 2 fixed in a plane parallel to the edge regions form fit and stabilized in this way the entire connecting device.

The first plate element 1 is dimensioned so that the distance between the two transitions from its outer oblique surfaces 1.4a, 1.4b to its edge regions 1.1, 1.2 substantially corresponds to the width of the gap 30. Thus, the first plate element 1 and the second plate element 2 connected thereto via the tensioning means 3 automatically center in the gap 30, in that the outer oblique surfaces 1.4a, 1.4b slide on the mutually facing edges of the wall elements 10, 20.

If the second plate member 2 braced against the first plate member 1, so reduces the distance between the outer inclined surfaces 1.4a, 1.4b and the third and fourth edge region 2.3, 2.4 of the second plate member 2 in the first direction X. In this way, the the outer oblique surfaces 1.4a, 1.4b and the third and fourth edge region 2.3, 2.4 adjacent edge portions of the wall elements moved away to the outside. Thus, the connecting device distances the two wall elements 10, 20 to an intended gap width 30 during clamping.

Fig. 3 schematically shows an embodiment of the connecting device, in which the two plate elements 1, 2 by means of spring elements, preferably by means of at least one coil spring 4, are interconnected. Shown is the connecting device in a mounting position in which the plate elements 1, 2 are distanced from each other so far in the direction X, that the second plate member 2 are inserted into the gap 30 and with its edge regions 2.3, 2.4 facing away from the inside of the elevator car to The gap 30 adjacent wall surfaces 10.3, 20.4 of the two wall elements 10, 20 can engage behind. The at least one coil spring 4 is designed so that they on the one hand can be stretched so far that the mentioned distancing of the plate elements during assembly of the connecting device by hand is possible, and that on the other hand, the two plate elements can pull against each other so far that they rest on each other and thereby clamp the wall elements to be connected at least slightly. The coil springs 4 are preferably used as aids for simplifying the assembly, wherein the two plate elements 1, 2 are braced together with the wall elements after attaching the connecting device with the clamping means 3 described above. However, it is also possible to design the coil springs 4 so that they provide the clamping force required to fasten the wall elements 10, 20 with sufficient stability to each other without additional clamping means.

As in Fig. 1 1, a longitudinal elastic seal 40 is received in a vertical groove 41 in the mutually facing end faces of the first and second wall elements 10, 20, which seals the wall elements in the clamped state against the outer inclined surfaces 1.4a, 1.4b and thus thermally seals the elevator car. isolated acoustically and climatically against the elevator shaft.

To the already in fixed frame corner profiles 50 of the elevator car (see. Fig. 1 ) fixed wall elements 10, 20 are connected to each other, as in Fig. 2 shown schematically, first the two plate elements 1, 2 in the first direction X sufficiently spaced apart. For this purpose, the clamping screws 3.1 are unscrewed accordingly far out of the threaded sleeves 3.2. Under inclination of the connecting device can then the second plate member 2 from the inside of the cabin (in Fig. 1 and 2 lying above) be passed through the gap 30, so that the third and fourth edge region 2.3, 2.4, the third and fourth wall surface 10.3, 20.4 engages behind. In this case, the second plate element 2, which is connected via the screws 3.1 with the first plate member 1, be handled well by this from the cabin inside.

Subsequently, the clamping screws 3.1 are screwed into the threaded sleeves 3.2, whereby the first plate member 1 is pulled against the second plate member 2. Here, the third and fourth edge region 2.3, 2.4 apply to the third or fourth wall surface 10.3, 20.4, by the engaging in the groove 1.5 of the first plate member 1 projection 2.2 of the second plate member 2, the two plate elements are mutually aligned or positioned , And the gap-facing edges of the wall elements 10, 20 to be connected come into contact with the outer inclined surfaces 1.4a, 1.4b.

Upon further screwing in the clamping screws 3.1, the distance of the outer inclined surfaces 1.4a, 1.4b to the third or fourth edge region 2.3, 2.4 decreases. In this case, the edges of the wall elements slide along the outer oblique surface 1.4a, 1.4b, whereby the connecting device is automatically centered in the gap 30. Finally come the mutually parallel, adjacent to the outer inclined surfaces 1.4a, 1.4b Verschraubungsbereiche 1.6 of the first plate member 1 with the third and fourth edge region 2.3, 2.4 of the second plate member 2 in contact, the connecting device is braced. In this state, the mutually facing edge regions of the first and second wall element 10, 20 in receiving grooves 41, between the first and the third edge regions 1.1, 2.3 and between the second and the fourth edge portion 1.2, 2.4 of the plate elements are formed, frictionally clamped, which can be applied by the clamping screws 3.1 sufficient normal force to achieve a high frictional engagement. The key width of the grooves is such that it is equal to or slightly smaller than the wall thickness (S) of the wall element to be clamped in the clamped state. When clamping the two plate elements 10, 20 with the intended bolt torque then the edge regions 1.1, 1.2, 2.3, 2.4 of the plate elements 1, 2 spread apart by the wall elements 10, 20 apart so that they clamp the wall elements and thereby fix by friction.

When the plate elements of the connecting device have reached their end position, the mutually facing, cabin inside edges of the first and second wall element 10, 20 are supported on the outer inclined surfaces 1.4a, 1.4b, whereby the connecting device positively positioned in the gap plane and the wall elements on the provided gap width to be distanced. By engaging in the groove 1.5 projection 2.2 and the two plate elements are positively fixed in their mutual position.
As described above, the connecting device supports the two wall elements in the cleavage plane in a form-fitting manner against each other and thereby distances them to the intended gap width. In addition, the receiving grooves clamp the edge regions of the wall elements and thus fix them in the cleavage plane. In this case, a high normal force can be applied by the clamping means 3, which generates a correspondingly high frictional engagement. Stiff plate elements 1, 2, for example, made of folded steel sheets are, favor a high rigidity of the cabin wall and also the mutual fixation of the wall elements by frictional engagement.

Since the mutually movable plate elements 1, 2 for insertion into the gap 30 can be sufficiently distanced from each other before they are clamped by means of the clamping means 3 against each other, it is possible to provide large-area first to fourth edge regions 1.1, 1.2, 2.3, 2.4, the allow correspondingly large clamping forces in wall elements with relatively low permissible pressure load. In addition, such large-area edge areas also favor the transmission of high bending moments, which leads to a corresponding increase in the overall rigidity of the cabin wall.

The folds not only serve the positive spacing and automatic centering, but also stiffen the connecting device in its longitudinal direction.

Overall, this results in a very rigid connection between the two wall elements, which also can be easily, quickly and mounted from the inside of the elevator car ago and also disassembled.

Claims (12)

Connecting device for connecting a first wall element (10) with a second wall element (20) of an elevator car, which is separated from the first wall element (10) by a gap (30) - A first plate member (1) having a first edge region (1.1) for resting on a first wall surface (10.1) of the first wall element and a second edge region (1.2) for resting on a second wall surface (20.2) of the second wall element and one of these two edge regions connecting and the gap overlapping first central region (1.3) and - A second plate member (2) having a third edge region (2.3) for resting on a third wall surface (10.3) of the first wall element, a fourth edge region (2.4) for resting on a fourth wall surface (20.4) of the second wall element (20) and a connecting these two edge regions and the gap overlapping second central region (2.1), characterized in that
the first plate element (1) is slidably connected thereto in a first direction (X) against the second plate element (2), and the connecting means comprises tensioning means (3) for clamping the first and second middle regions (1.3, 2.1) against each other in the first direction (X), so that the first wall element (10) between the first and third edge region (1.1, 2.3) and the second wall element (20) between the second and fourth edge region (1.2, 2.4) are clamped. Connecting device according to claim 1, characterized in that the two central regions (1.3, 2.1) touch each other in the mutually braced state. Connecting device according to one of the preceding claims, characterized in that the first central region (1.3) has at least one outer oblique surface (1.4a, 1.4b) adjacent to one of the edge regions (1.1, 1.2) and inclined towards the second plate element , Connecting device according to claim 2, characterized in that the first central region (1.3) at least one inner inclined surface (1.5a, 1.5b) which is inclined relative to the first direction (X), that the second central region (2.1) at least one inner inclined surface (2.2a, 2.2b) with the same inclination as the at least one inner oblique surface (1.5a, 1.5b) of the first central region (1.3), wherein in the clamped state, the at least one inner oblique surface (1.5a, 1.5b) of the first central region (1.3) rests on the at least one inner oblique surface (2.2a, 2.2b). Connecting device according to one of the preceding claims, characterized in that the clamping means (3) comprise one or more bolts (3.1), in particular one or more clamping screws. Connecting device according to claim 5, characterized in that each screw (3.1) is associated with a threaded nut (3.2), wherein a bolt or the associated threaded nut with the first or second Plate element (1, 2) fixedly connected, in particular integrally formed therewith. Connecting device according to one of the preceding claims, characterized in that the clamping means comprise one or more elastic spring elements (4), in particular coil springs. Connecting device according to one of the preceding claims, characterized in that in the clamped state and without intervening wall elements of the first and third edge region (1.1, 2.3) and / or the second and fourth edge region (1.2, 2.4) have a distance from each other, which is smaller than the Wall thickness (S) of the wall elements to be clamped. Wall element arrangement comprising a first wall element (10) and a second wall element (20) spaced therefrom by a gap (30) and a connection device according to one of the preceding claims, characterized in that in the edge region of the first and the second part facing the gap / or the second wall element (10, 20) a seal (40) is arranged, which seals this edge region of the wall element against the first and / or the second central region (1.3, 2.1). Elevator car with a connection device according to claims 1-8. Elevator car with a wall element arrangement according to claim 9. Method for connecting a first wall element (10) and a second wall element (20), which is adjacent thereto and is separated from the first wall element (10) by a gap (30), by means of a connecting device according to one of the preceding Claims 1 to 9, comprising the steps: Inserting the second plate member (2) sufficiently spaced from the first plate member (1) in the first direction (X) through the gap (30); Applying the third and fourth edge regions (2.3, 2.4) to the third and fourth wall surfaces (10.2, 20.4); and Clamping the first and the second plate element relative to each other in the first direction (X) such that the first wall element (10) between the first and third edge region (1.1, 2.3) and the second wall element (20) between the second and fourth edge region (1.2 , 2.4) is clamped.

Images