EP3339232A1 - Floor of an elevator car, elevator car with such a floor and a method of assembly for a floor of an elevator car - Google Patents

Abstract

A floor (5) of an elevator car is shown comprising a plurality of floor elements (10-14), wherein the floor elements (10-14) are each connected to one another by means of a dovetail connection.

Description

The present invention relates to a floor of an elevator car, an elevator car with such a floor and a method for building a floor of an elevator car.

Previously known floors of elevator cars consist of several floor elements. This allows the size of the floor to be adjusted. The plurality of floor elements are glued together and thereby connected together. The disadvantage of this is that under unfavorable circumstances, the adhesive bond can be solved. This may be based on the fact that in rare cases the adhesive bond has poor quality or has been manufactured poorly and / or that under unfavorable circumstances chemical liquids or cleaning agents for cleaning the bottom of the elevator car or the interior of the elevator car facing surface of the floor of the elevator car attack the adhesive bond between the floor elements and weaken or destroy them. This can solve under unfavorable circumstances, the connection between the floor elements. Under unfavorable circumstances, this can thus impair the safety of the floor or of the elevator car and consequently of the entire elevator.

Among other things, there may be a need for a floor of an elevator car, the elements of which are securely connected together without adhesive. There may also be a need for an elevator car whose bottom consists of elements which are securely connected together without adhesive. In addition, there may be a need for a method of constructing a floor of an elevator car by means of which elements of the floor can be securely and quickly connected together without adhesive.

Such a need may be met by the subject matters of the independent claims, respectively. Advantageous embodiments are defined in the dependent claims.

According to one aspect of the invention, a floor of an elevator car is proposed, wherein the floor comprises a plurality of floor elements, wherein the floor elements are each connected to each other by means of a dovetail connection.

An advantage of this is that the bottom elements are bonded together without adhesive or without an adhesive connection. In addition, the floor can usually be assembled quickly and dismantled technically. Also, the bottom members are generally technically easily aligned by the dovetail joint. Thus, the connection between the floor elements is stable to chemical liquids or the like, or is substantially unaffected by chemical liquids or the like. In addition, the production of the soil is usually technically simple, quick to carry out and inexpensive.

The dovetail connection can also be a so-called Christmas tree connection in the rule. The dovetail joint may typically include one or more multiple "serrated" dovetail joints.

A dovetail joint may typically include at least one protrusion or tines tapering in a first direction and at least one recess tapering in the first direction, the projection being complementary to the recess. By the introduction of the projection into the recess in a second direction, usually a non-movable perpendicular to the second direction connection can be formed. In cross-section perpendicular to the second direction of the projection and the recess may usually each have a trapezoidal shape. As a result, a positive connection can usually be achieved. Other shapes of the projection and the recess in the cross-section perpendicular to the second direction, e.g. oval, elliptical, circular, polygonal, diamond-shaped, are usually conceivable.

According to a second aspect of the invention, an elevator car with a floor according to the first aspect of the invention is proposed.

One advantage of this is, inter alia, that the elevator car has a bottom whose elements are securely connected to each other without adhesive.

According to a third aspect, a method for building a floor of an elevator car is proposed, comprising the steps of: providing a plurality of floor elements; and connecting at least two floor elements together by means of a dovetail joint for assembling the floor. An advantage of this is that the floor elements are securely and quickly connected together without adhesive. In particular, it is not usually necessary to wait for the drying of an adhesive. In addition, the floor elements can usually be aligned with one another in a technically simple and rapid manner by means of the dovetail connection between the floor elements.

Possible features and advantages of embodiments of the invention may be considered, inter alia, and without limiting the invention, as being based on the ideas and findings described below.

In one embodiment, the floor elements are interconnected exclusively by means of one or more dovetail joints. An advantage of this is that the floor is usually technically very easy and particularly fast to produce.

In one embodiment, the floor elements comprise a metal and / or a metal alloy, in particular the floor elements consist of a metal and / or a metal alloy. As a result, the soil usually has a particularly high stability and a low weight in relation to its carrying capacity.

In one embodiment, the floor elements comprise aluminum and / or an aluminum alloy, in particular the floor elements consist of aluminum and / or an aluminum alloy. One advantage of this is that the floor is generally very light in weight.

In one embodiment, the floor further comprises at least one dovetail connection element, the dovetail connection being formed between in each case two floor elements by means of the dovetail connection element. An advantage of this is that the compound is usually technically particularly simple.

In one embodiment, the bottom elements have recesses, wherein the dovetail connection element for producing the dovetail connection is received in the recesses of the two interconnected floor elements. As a result, the soil can be produced in a particularly cost-effective manner in the rule.

In one embodiment, the dovetail joint member is formed integrally with the bottom member, respectively. An advantage of this is that the production of the soil is usually technically even easier, since the bottom consists of a few individual parts.

In one embodiment, at least one bottom element has a recess on two opposite sides, wherein dovetail connection elements for producing the dovetail connections between the bottom elements are accommodated in the two recesses of the at least one bottom element. An advantage of this is that the floor is usually technically easier to produce. In addition, as a result, a particularly large-area floor can generally be manufactured in a technically simple and fast manner.

In one embodiment of the method, the at least two floor elements are connected solely by means of one or more dovetail joints for assembling the floor. An advantage of this is that the floor is usually technically very easy and particularly fast to produce.

In one embodiment of the method, the floor elements comprise aluminum and / or an aluminum alloy, in particular the floor elements consist of aluminum and / or an aluminum alloy. As a result, a particularly stable and in relation to its carrying capacity low weight exhibiting soil is produced.

In one embodiment, a dovetail connector is used to make the dovetail connection between the two floor elements. An advantage of this is that the compound is usually technically very easy to produce.

In one embodiment of the method, the two floor elements are connected by inserting the dovetail connection element into recesses of the two floor elements to be connected to one another. As a result, the soil can be produced in a particularly cost-effective manner in the rule.

In one embodiment of the method, the dovetail connection element is formed integrally with the bottom element. An advantage of this is that the production of the floor is usually technically even easier, since the floor is assembled from fewer individual parts.

It should be understood that some of the possible features and advantages of the invention are described herein with reference to different embodiments. A person skilled in the art will recognize that the features can be suitably combined, adapted or replaced in order to arrive at further embodiments of the invention.

Fig. 1

eine perspektivische Ansicht einer ersten Ausführungsform des erfindungsgemäßen Bodens;

Fig. 2

eine Querschnittsansicht des Bodens aus Fig. 1;

Fig. 3

eine Seitenansicht des Bodens aus Fig. 1;

Fig. 4

eine Aufsicht auf den Boden aus Fig. 1;

Fig. 5

eine Querschnittsansicht einer ersten Ausführungsform eines Bodenelements eines erfindungsgemäßen Bodens;

Fig. 6

eine Seitenansicht des Bodenelements aus Fig. 5;

Fig. 7

eine Aufsicht auf das Bodenelement aus Fig. 5;

Fig. 8

ein Schwalbenschwanzverbindungselement zum Verbinden zweier Bodenelemente;

Fig. 9

eine Seitenansicht des Schwalbenschwanzverbindungselements aus Fig. 8;

Fig. 10

eine Aufsicht auf das Schwalbenschwanzverbindungselement aus Fig. 8;

Fig. 11

eine Querschnittsansicht einer zweiten Ausführungsform eines Bodenelements eines erfindungsgemäßen Bodens;

Fig. 12

eine Querschnittsansicht einer dritten Ausführungsform eines Bodenelements eines erfindungsgemäßen Bodens; und

Fig. 13

eine Detailansicht des Bereichs XIII des Bodenelements aus Fig. 12.

Embodiments of the invention will now be described with reference to the accompanying drawings, in which neither the drawings nor the description are to be construed as limiting the invention. Show it:

Fig. 1

a perspective view of a first embodiment of the floor according to the invention;

Fig. 2

a cross-sectional view of the soil Fig. 1 ;

Fig. 3

a side view of the soil Fig. 1 ;

Fig. 4

a top view on the ground Fig. 1 ;

Fig. 5

a cross-sectional view of a first embodiment of a bottom element of a floor according to the invention;

Fig. 6

a side view of the floor element Fig. 5 ;

Fig. 7

a top view of the floor element Fig. 5 ;

Fig. 8

a dovetail joint member for connecting two floor members;

Fig. 9

a side view of the dovetail connector Fig. 8 ;

Fig. 10

a plan view of the dovetail connector Fig. 8 ;

Fig. 11

a cross-sectional view of a second embodiment of a bottom element of a floor according to the invention;

Fig. 12

a cross-sectional view of a third embodiment of a bottom element of a floor according to the invention; and

Fig. 13

a detailed view of the area XIII of the floor element Fig. 12 ,

The figures are only schematic and not to scale. Like reference numerals designate like or equivalent features throughout the several figures.

Fig. 1 shows a perspective view of a first embodiment of the floor 5 according to the invention. Fig. 2 shows a cross-sectional view of the bottom 5 from Fig. 1 , Fig. 3 shows a side view of the bottom 5 Fig. 1 , Fig. 4 shows a top view of the bottom 5 from Fig. 1 ,

The floor 5 is the floor of an elevator car. The elevator car serves to pick up and transport goods and / or people in an elevator or elevator system.

The bottom 5 consists of several bottom elements 10-14. The bottom elements 10-14 are connected to each other by means of a dovetail connection. Between each two bottom elements 10-14 a dovetail connection is present. Of the Soil 5 exists in the Fig. 1-4 from seven floor elements 10-14. Of these, five bottom elements 10-14 (so-called center pieces) are formed identically in the middle. The two outermost bottom elements 10-14 (so-called end pieces) at the edge of the bottom 5 are likewise of similar design. The floor 5 may alternatively consist of two, three, four, five, six, eight or more than eight floor elements.

The bottom elements 10-14 and the (in Fig. 2 upper) surfaces of the bottom elements 10-14 are arranged parallel to each other. The bottom element 10-14 is in each case substantially cuboid. The bottom elements 10-14 are connected to one another on one of the short side of the bottom element 10-14. The bottom 5 is flat. The maximum height difference of the bottom 5 is about 2.0 mm. The floor 5 has a height (in Fig. 3 from top to bottom) of about 19 mm and a width (in Fig. 4 from top to bottom) of about 1128 mm.

Fig. 5 shows a cross-sectional view of a first embodiment of a bottom element 10-14 of a bottom 5 according to the invention. Fig. 6 shows a side view of the bottom element 10-14 Fig. 5 from level VI-VI. Fig. 7 shows a plan view of the bottom element 10-14 Fig. 5 ,

The bottom element 10-14 has a rectangular cavity 15-19. The wall thickness of the floor element 10-14 is approximately 1.8 mm at each point. The length of the floor element 10-14 (in Figure 7 running from left to right) is approximately 2098 mm. The width is about 50 mm. The width of the cavity 15 of the bottom element 10-14 (in Fig. 5 running from left to right) is approximately 36.4 mm. The width of the floor element 10-14 (in Fig. 5 from left to right) is about 40 mm (without the pins 24, 26, 28, 30 and the recess 20, 21). The height of the floor element 10-14 is approximately 19 mm.

The bottom element 10-14 has on a short side of the cuboid part 30 of the bottom element 10-14 (in Fig. 5 right) two pins 24, 26, 28, 30 on. The pins 24, 26, 28, 30 enclose a recess 20, 21 between them. The pins 24, 26, 28, 30 are in cross section according to Fig. 5 essentially trapezoidal in shape, wherein each of the recess 20, 21 facing away from the outer side of the trapezoid runs parallel to the outside of the cuboid portion 30 of the bottom element 10-14.

The recess 20, 21 respectively facing inner side of the pin 24, 26, 28, 30 and the trapezoid has an angle of about 80 ° to the recess 20, 21 facing side of the cuboid portion 30 of the bottom element 10-14 , The cuboid part 30 of the bottom element 10-14 facing side and opposite side of the trapezoid of the pins 24, 26, 28, 30 extend parallel to each other. The pins 24, 26, 28, 30 extend over the entire length of the bottom element 10-14.

The recess 20, 21 thus has on the cuboid part 30 of the bottom element 10-14 side facing (in Fig. 5 left) to a greater height than at the cuboid portion 30 of the bottom element 10-14 opposite side (in Fig. 5 right). The recess 20, 21 is dovetail-shaped.

The height of the pins 24, 26, 28, 30 at the extreme end of the pin 24, 26, 28, 30 (facing away from the cuboid part 30 of the bottom element 10-14) is in each case about 3.5 mm. The height of the pins 24, 26, 28, 30 at the inner end of the pin 24, 26, 28, 30 (the cuboid portion 30 of the bottom element 10-14 facing) is in each case about 1.8 mm and is therefore the same size as the wall thickness the cuboid part 30 of the bottom element 10-14. The smallest distance of the pins 24, 26, 28, 30, which is located at the extreme end of the pins 24, 26, 28, 30, is approximately 12.0 mm. The largest distance of the pins 24, 26, 28, 30, which is located at the inner end of the pins 24, 26, 28, 30, is approximately 15.4 mm.

The pins 24, 26, 28, 30 are approximately 10.0 mm from the cuboid portion 30 of the bottom element 10-14. The ratio between the length of the pins (about 10.0 mm) and the width of the recess 20, 21 at the narrowest point (about 12.0 mm) is thus about 0.8. The pins 24, 26, 28, 30 are mirror images of a plane formed centrally through the recess 20, 21 and perpendicular to the plane of the Fig. 5 runs.

Fig. 8 shows a dovetail connector 50 for connecting two floor elements 10-14. Fig. 9 shows a side view of the dovetail connector 50 from Fig. 8. Fig. 10 FIG. 11 is a plan view of the dovetail connector 50. FIG Fig. 8 ,

The dovetail connector 50 has two projections 55-58. The Dovetail connection element 50 consists in particular of two rigidly interconnected projections 55-58. The dovetail connector 50 is symmetrical about a plane passing through the center of the dovetail connector 50 and perpendicular to the plane of the drawing Fig. 8 runs, trained.

The plane of symmetry thus runs in Fig. 8 from top to bottom and into the drawing plane. The dovetail joint member 50 has two cavities 70, 71 formed respectively inside the protrusions 55-58. The wall thickness of the dovetail connection element 50 is uniformly about 2 mm.

The height of the dovetail connector 50 is about 12 mm at the least-height location located at the center of the dovetail connector 50 in FIG Fig. 8 located. The largest height of the dovetail connection element 50 is about 15 mm.

When inserting the dovetail connection element 50 into the recess 20, 21 of the bottom element 10-14 of Fig. 5-7 Thus, the dovetail joint 50 has a clearance of about 0.4 mm in height.

The protrusions 55-58 face outwardly from the center of the dovetail connector 50 (in FIG Fig. 5 thus to the left and to the right) in each widening form. Towards the center of the dovetail connection element 50, the projections 55-58 each taper. The projections 55-58 extend over the entire width of the dovetail connection element 50.

The projections 55-58 are each dovetail-shaped. The projections 55-58 thus have a shape similar to the forked shape of the tail of a swallow. A dovetail connector 50 serves to connect two floor elements 10-14. The shape of the projections 55-58 is complementary to the recesses 20, 21 of the bottom elements 10-14.

The dovetail joint 50 becomes perpendicular to the plane of the drawing Fig. 5 with one of the two projections 55-58 in the recess 20, 21 of the bottom element 10-14 inserted or inserted. The other projection 55-58 of the dovetail connection element 50 is inserted into the recess 20, 21 of an identical or similar floor element 10-14 perpendicular to the plane of the drawing Fig. 5 inserted or inserted. As a result, the two bottom elements 10-14 are parallel to the plane of the drawing Fig. 5 no longer displaceable or movable. Consequently, a rigid connection between the floor elements 10-14 is made. Thus, a floor 5 can be composed of two floor elements 10-14.

Due to the dovetail connection of the floor elements 10-14, the floor elements 10-14 are aligned with one another in a technically simple manner. As a result, a plane or even surface of the bottom 5 can be technically easily achieved.

The type of connection (dovetail connection) is also called "dovetail joint" (English).

One or more (not shown in the drawings) securing elements can mechanically ensure that the bottom elements 10-14 in the plane of the Fig. 2 can not be moved in or out, so that a release of the dovetail connections without loosening or removing the security element or is not possible. The fuse element may be, for example, a skirting in Fig. 1 each at the upper edge of the bottom elements 10-14 and at the bottom of the bottom elements 10-14 is arranged.

Fig. 11 shows a cross-sectional view of a second embodiment of a bottom element 10-14 of a floor according to the invention 5. The in Fig. 11 shown bottom element 10-14 differs from that in Fig. 5 shown bottom element 10-14 only in that the cuboid part 30 of the in Fig. 11 shown bottom element 10-14 a larger width, namely about 64.4 mm, than that in Fig. 5 has bottom element 10-14 shown. The cavity 15-19 is in the in Fig. 11 shown bottom elements 10-14 correspondingly larger, so that the bottom element 10-14 has the same wall thickness (about 1.8 mm). The pins 24, 26, 28, 30 are at the in Fig. 11

Fig. 12 shows a cross-sectional view of a third embodiment of a floor element 10-14 of a floor 5 according to the invention. Fig. 13 shows a detailed view of the area XIII of the bottom element 10-14 Fig. 12 , The bottom element 10-14 has three equal and uniform cavities 15-19. At the two opposite ends of the floor element 10-14 (in Fig. 12 left and right) is in each case a recess 20, 21 is provided, which is formed by two pins 24, 26, 28, 30. The two recesses 20, 21 are open in opposite directions.

The recesses 20, 21 or depressions are formed symmetrically to each other. The pins 24, 26, 28, 30 and the recesses 20, 21 of in Fig. 12 shown embodiment of the bottom element 10-14 have the same size, the same dimensions and the same shape as the pins 24, 26, 28, 30 and the recesses 20, 21 of the in the Fig. 5-7 and in the Fig. 11 shown embodiments of the bottom element 10-14.

Fig. 12 shows a bottom element 10-14, which can be used as a center piece. At both ends of the bottom element 10-14 of Fig. 12 can by a respective dovetail joint 50, another bottom element 10-14 with the in Fig. 12 shown floor element 10-14 are connected. This in Fig. 11 or in the Fig. 5-7 bottom element 10-14 shown is an end piece, since 10-14 other bottom elements 10-14 can be connected or connected only to one side or to one end of the bottom element.

The bottom elements 10-14 and / or the dovetail connection elements 50 may comprise a metal and / or a metal alloy or consist of a metal and / or a metal alloy. The metal may in particular be aluminum. The metal alloy may in particular be an aluminum alloy. The dovetail connector 50 may comprise plastic or be made of plastic.

The dovetail connector 50 may be a separate component as shown in FIGS Fig. 8-10 is shown. It is also conceivable that the dovetail connection element 50 with a bottom element 10-14 is integrally or integrally formed. The dovetail connector 50 in this case can only be one half of the in Fig. 8 shown dovetail connector 50 consist.

In the case of integral formation with a bottom element 10-14, a dovetail connection element 50 of one floor element 10-14 is rigidly connected to a recess 20, 21 of another floor element 10-14.

The dovetail connection element 50 together with the recess 20, 21 or the dovetail connection creates a substantially positive connection of the two bottom elements 10-14.

The dovetail joint 50 is flush with the surface of the bottom elements 10-14 connected by the dovetail joint 50 and the surface of the bottom 5, respectively. Parallel to the surface of the floor 5 of the elevator car, the floor elements 10-14 can no longer be moved after being connected to the dovetail connection.

Due to the modular construction of spacers and end pieces or floor elements 10-14 with different width of the bottom 5 can be technically easily adapted to the desired size or area.

Finally, it should be noted that terms such as "comprising," "comprising," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a multitude. It should also be appreciated that features or steps described with reference to any of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limiting.

Claims (15)

Comprising floor (5) of an elevator car
a plurality of bottom elements (10-14), wherein the bottom elements (10-14) are each connected to each other by means of a dovetail joint. A floor (5) according to claim 1, wherein
the floor elements (10-14) are interconnected exclusively by means of one or more dovetail connections. A floor (5) according to claim 1 or 2, wherein
the bottom elements (10-14) comprise a metal and / or a metal alloy, in particular consist of a metal and / or a metal alloy. A floor (5) according to any one of claims 1-3, wherein
the bottom elements (10-14) comprise aluminum and / or an aluminum alloy, in particular consist of aluminum and / or an aluminum alloy. A floor (5) according to any one of the preceding claims 1-4, further comprising at least one dovetail joint member (50),
wherein the dovetail connection between each two bottom elements (10-14) is formed by means of the dovetail connection element (50). A floor (5) according to any one of claims 1-5, in particular claim 5, wherein the floor elements (10-14) have recesses (20, 21), the dovetail connection element (50) for producing the dovetail connection in the recesses (20, 21) ) of the two interconnected floor elements (10-14) is received. A floor (5) according to any one of claims 1-6, in particular claim 5, wherein the dovetail joint member (50) is formed integrally with the floor member (10-14), respectively. Floor (5) according to one of the preceding claims, wherein
at least one bottom element (10-14) has a recess (20, 21) on two opposite sides, wherein dovetail connection elements (50) for producing the dovetail connections between the bottom elements (10-14) in the two recesses (20, 21) of the at least one bottom element (10-14) are received. Elevator car with a floor (5) according to one of claims 1-8. Method for constructing a floor (5) of an elevator car, comprising the steps: Providing a plurality of floor elements (10-14); and Connecting at least two floor elements (10-14) together by means of a dovetail joint for assembling the floor (5). The method of claim 10, wherein
the at least two floor elements (10-14) are connected solely by means of one or more dovetail joints for assembling the floor (5). A method according to claim 10 or 11, wherein
the bottom elements (10-14) comprise aluminum and / or an aluminum alloy, in particular consist of aluminum and / or an aluminum alloy. The method of any one of claims 10-12, wherein
a dovetail connector (50) is used to make the dovetail joint between the two floor elements (10-14). Method according to one of claims 10-13, in particular according to claim 13,
wherein the two floor elements (10-14) are connected by inserting the dovetail connection element (50) into recesses (20, 21) of the two floor elements (10-14) to be connected to one another. Method according to one of claims 10-14, in particular according to claim 13,
wherein the dovetail joint member (50) is formed integrally with the bottom member (10-14), respectively.

Images