EP3626670A1 - Elevator cab and method for manufacturing same - Google Patents

Abstract

Elevator cabin for the transportation of people and goods with a plurality of wall parts, in particular wall parts in the form of a cabin floor, at least three side walls and a cabin ceiling, and with at least one door opening. The cabin floor, the cabin ceiling and at least one side wall are made of at least one thermoplastic. The cabin ceiling and / or at least one side wall and / or the cabin floor is / are connected to a conveying and / or catching device of the cabin for load transfer via at least one load transfer element.

Description

The invention relates to an elevator car for transporting people and goods, with a plurality of wall parts - in particular with a car floor, at least three side walls and a cabin ceiling - and with at least one door opening. The invention further relates to a method for producing such an elevator car. - The elevator car according to the invention is in particular part of a construction site elevator for the transport of people and / or goods. The elevator car can in particular also be used in wind power plants or in the course of creating wind power plants.

Elevators with elevator cars are known in practice in different embodiments. The elevators are generally moved, in particular moved vertically, by means of a conveyor device arranged on the elevator car. The conveyor often serves as a conveyor and catcher. The known elevator cars are generally made of metallic materials or at least essentially of metallic materials. The load-bearing structure is primarily taken over by metallic support elements into which the loads are entered and derived. The cabin itself essentially has the function of a protective cover to prevent injuries to the transported people or to protect against falling objects. - Basically, the manufacture of individual elevator components made of plastic is also known, but in this case it is fiber composites or fiber-reinforced plastics. This is associated with high costs and, moreover, these composite materials have difficult recycling behavior.

In contrast, the invention is based on the technical problem of specifying an elevator car of the type mentioned at the outset, which is characterized by a characterized by simple and inexpensive construction, which is relatively inexpensive to manufacture, with which all loads or forces can also be reliably absorbed or derived and which also has optimal recycling behavior. The invention is also based on the technical problem of specifying a corresponding method for producing such an elevator car.

To solve the technical problem, the invention teaches an elevator car for the transportation of people and goods, with a plurality of wall parts - in particular wall parts in the form of a cabin floor, in the form of side walls, preferably at least three side walls and in the form of a cabin ceiling - and with a door opening,
wherein at least one wall part - in particular the cabin floor, the cabin ceiling and at least two side walls, preferably at least three side walls - are made from at least one thermoplastic plastic or essentially from at least one thermoplastic plastic
and wherein at least one wall part - in particular the cabin ceiling and / or at least one side wall and / or the cabin floor - is / are connected to a conveying device or to a conveying and / or catching device of the cabin for load transfer via at least one load transfer element.

Within the scope of the invention, the fact that at least one wall part - the cabin floor and / or at least one side wall and / or the cabin ceiling - is essentially made of at least one thermoplastic plastic means that this wall part is at least 85%, preferably at least 90% and preferably made of at least 95% of its volume from the thermoplastic. At this The volume specification expediently does not take into account a load diverting element integrated in the wall part and any connecting elements connected to it. Within the scope of an embodiment of the invention, the fact that the cabin floor is made of at least one thermoplastic plastic or is essentially made of at least one thermoplastic plastic means in particular that at least one or one flat floor component of the cabin floor - which preferably extends over the entire area of the floor Cabin floor or extends essentially over the entire surface of the cabin floor - is made of thermoplastic material or is essentially made of thermoplastic material.

It is within the scope of the invention that the loads acting on the elevator car are taken up by the car itself as a supporting structure and are discharged via the at least one load transfer element into the conveying device or into the conveying and / or catching device. The plastic structure of the elevator car itself thus forms a load-bearing structure for receiving and deriving the loads or forces acting on the car. Instead of the term load transfer element, the term force transfer element could also be used. - The conveyor of the elevator car is expediently designed as a conveyor and catching device. According to one embodiment, the method or the vertical method of the elevator car takes place by means of a conveying device in the form of a cable winch or in the form of a rope winch. According to another embodiment, the method or vertical method of the elevator car is implemented by means of a conveyor device which meshes with a toothed rack.

Furthermore, it is within the scope of the invention that the elevator car according to the invention is rectangular in cross section and preferably overall is cuboid. As a recommendation, the elevator car has a car floor, three side walls and a car ceiling, and a door opening on one side. The side walls are expediently oriented perpendicularly or substantially perpendicularly to the cabin floor to the cabin ceiling. Furthermore, two side walls each preferably enclose an angle of 90% or approximately 90%. It is also within the scope of the invention that the area of the side walls is larger than the area of the cabin floor and / or the area of the cabin ceiling. In principle, however, other designs of the elevator car are also possible here. According to one embodiment variant, the elevator car is round in cross section, in particular circular or oval in cross section. In this case, the at least three side walls of the elevator car are composed of side walls which are curved in cross section, in particular of side walls which are partially circular or partially oval in cross section. Then this cross-sectionally curved configuration would expediently be implemented at least for the rear side wall and for the two side side walls.

A particularly recommended embodiment of the invention is characterized in that the thermoplastic plastic of the wall parts of the elevator car is a polyolefin and in particular is a polyethylene and / or a polypropylene. Polyethylene is particularly preferred as the material. According to a further embodiment variant, the thermoplastic plastic of the wall parts of the elevator car is a polyamide. According to one embodiment of the invention, polyethylene, polypropylene or polyamide also means copolymers of polyethylene, polypropylene or polyamide.

According to a very preferred embodiment of the invention, the load is diverted via at least one load diverting element arranged on or in a wall part. The load is expediently carried out via at least one load dissipation element arranged on or in the cabin ceiling and / or via at least one load dissipation element arranged on or in at least one side wall, preferably the rear side wall. Basically, one or at least one load transfer element can also be arranged on or in the cabin floor. - Rear side wall means in the context of the invention in particular the side wall which is arranged opposite the door opening of the elevator car.

A particularly preferred embodiment - which is of very special significance in the context of the invention - is characterized in that the load-diverting element is integrated in the plastic of a wall part of the elevator car. According to the recommended embodiment of the invention, the at least one load-diverting element is integrated in the plastic of at least one side wall - preferably the rear side wall. The at least one load-dissipation element or the load-dissipation element is expediently surrounded by the plastic of the wall part, in particular completely surrounded or essentially completely surrounded. In the context of this embodiment, the at least one load-dissipation element or the load-dissipation element is preferably surrounded by the plastic of the at least one side wall - expediently the rear side wall - in particular completely surrounded or essentially completely surrounded. - According to another embodiment variant of the invention, the at least one load transfer element is arranged under the cabin ceiling or directly under the cabin ceiling. In this case, the at least one load-deflecting element preferably bears positively on the underside of the cabin ceiling or on the plastic of the cabin ceiling.

It is within the scope of the invention that the load transfer element is at least essentially made of a material that is different from the thermoplastic plastic of the wall part or the wall parts. The load transfer element is preferably made from a metallic material or essentially from a metallic material. According to a further embodiment variant, the load transfer element could be made of a reinforced plastic - in particular a fiber-reinforced plastic - or essentially be made.

In principle, the load diverting element can have different shapes. For example, the load transfer element could only be designed as a threaded insert, which is preferably integrated in the plastic of the associated wall part of the cabin. The load diverting element could also be designed as a load diverting rod, which is connected to the assigned wall part or - according to a very preferred embodiment - is integrated into the assigned wall part. It is within the scope of the invention that the at least one load transfer element extends over at least part of the area of the associated wall part of the cabin. Thus, the load dissipation element can be designed as a threaded insert integrated in the wall part with attached struts, which preferably extend into the plastic of the wall part and thus ensure a flat expansion of the load dissipation element. In this embodiment, a plurality of threaded inserts is expediently integrated into the wall part or into the plastic of the wall part, and these threaded inserts are preferably connected to the conveying device or to the conveying and / or catching device via connecting elements.

A very particularly preferred embodiment of the invention is characterized in that the at least one load-diverting element is a flat one Is a load dissipation element and is preferably designed as a load dissipation plate or as a load dissipation grid or the like. The flat load-diverting element - in particular the load-diverting plate and / or the load-diverting grid - is connected flat to the assigned wall part or is integrated flat into the plastic of the assigned wall part. It is recommended that the planar load-diverting element - in particular the load-diverting plate and / or the load-diverting grid - be connected to the associated cabin ceiling and / or to the associated side wall, in particular to the rear side wall. The planar load-diverting element - in particular the load-diverting plate and / or the load-diverting grid - is very preferably integrated flatly in the plastic of the associated cabin ceiling and / or planarly in the plastic of the assigned side wall - in particular the rear side wall. In this case, the flat load-diverting element is preferably arranged parallel or essentially parallel to the surface of the assigned wall part or the assigned cabin ceiling and / or the assigned side wall.

It is within the scope of the invention that a load diverting element is connected to the conveying device or to the conveying and / or catching device via at least one connecting element - preferably via a plurality of connecting elements. The connecting element or the connecting elements preferably reach through the plastic of the associated wall part, preferably the plastic of the associated cabin ceiling and / or the plastic of the associated side wall, in particular the rear side wall. The connecting elements are preferably designed as metallic connecting elements. Expediently, they extend transversely and preferably perpendicularly or substantially perpendicularly to the surface of the relevant wall part or to the surface of the cabin ceiling and / or to the surface of the associated side wall. The connecting elements can in particular be connecting rods, connecting bolts, connecting screws and the like. Above all, when working within the scope of the invention with threaded inserts as load transfer elements, the connecting elements are preferably designed in the form of threaded rods, connecting screws or the like.

A very particularly preferred embodiment of the invention is characterized in that the flat load-diverting element - in particular a load-diverting plate - is only partially integrated into a side wall made of thermoplastic material - in particular into a rear side wall made of thermoplastic material - the load-diverting element towards the cabin interior from the plastic the side wall is covered in a form-fitting manner and is free or uncovered by the plastic of the side wall at least over the largest part of its area — preferably over the entire area or over the entire area. The flat load-diverting element - in particular the load-diverting plate - is expediently integrated with all sides in the plastic of the side wall and only on its outside or towards the outside of the cabin at least over most of its area, preferably over its entire area, free of the plastic of the side wall or uncovered. It is within the scope of the invention that the load transfer plate has two opposite plate surfaces and lateral plate surfaces. The load transfer plate is then expediently integrated with a plate surface or with the plate surface facing the inside of the cabin and with its side plate surfaces in the plastic of the side wall of the cabin, and only the second plate surface or the plate surface oriented towards the outside of the cabin is free of the plastic of the side wall or uncovered.

According to a particularly preferred embodiment of the invention, the conveying device or the conveying and / or catching device is arranged on the inside of the cabin. The planar load-transfer element or the load-transfer plate is then expediently connected to the cabin-side conveying device or conveying and / or catching device via at least one connecting element passing through the plastic of the side wall, in particular via a plurality of connecting elements passing through the plastic of the side wall. It is within the scope of the invention that the at least one connecting element or that the connecting elements reach through the plastic of the side wall with play. Each connecting element expediently passes through a sleeve inserted into the plastic of the side wall and passes through this sleeve with play. For example, the forces between the cabin and the conveying device or the conveying and / or catching device are preferably transmitted via the flat load-dissipation element or via the load-dissipation plate and are not transmitted directly between connecting elements and the side wall. - According to the preferred embodiment explained above, the conveying device or the conveying and / or catching device is arranged on the inside of the cabin. The conveyor device is expediently a winch for the elevator car. Conveyor and catching device can be combined in the cabin to form a unit, or conveying device and catching device can be arranged separately in the cabin and expediently connected to the flat load-transfer element or to the load-transfer plate.

The area of the flat load-dissipation element or the load-dissipation plate is preferably, in particular the area of a surface of the load-dissipation plate - preferably with respect to a projection onto the assigned side wall or rear side wall - 8 to 40%, advantageously 8 to 35%, preferably 8 to 30% and very preferably 10 to 25% of the area of the assigned side wall, in particular the rear side wall of the cabin. The vertical height of the flat load-dissipation element or the load-dissipation plate is preferably 10 to 40% and in particular 15 to 40% of the vertical height of the associated side wall or the assigned rear side wall. The term vertical height refers here to the installed state of the cabin with the cabin floor underneath and the cabin ceiling on the top. It is recommended that the thickness of the flat load-dissipation element or the load-dissipation plate is 50 to 200%, in particular 75 to 180% of the thickness of the associated side wall or the rear side wall and in particular the thickness of the plastic of the assigned side wall or the rear side wall. The thickness is expediently measured horizontally in the installed state of the cabin.

A recommended embodiment of the invention is characterized in that the cabin floor of the cabin forms or has / the load-receiving surface of the cabin and that the load or force transfer is only or at least essentially via the cabin made of the thermoplastic to the at least one load-transfer element he follows. According to a preferred embodiment of the invention, apart from the connection of the cabin floor to the at least one load transfer element via the thermoplastic plastic of the cabin, there are no further connection components, such as struts, supports, rods and the like, between the cabin floor and the at least one load transfer element.

A proven embodiment of the invention is characterized in that the cabin floor has at least one or a flat load distribution component has, via which the load is transferred to the cabin made of thermoplastic material. The flat load distribution component is preferably supported on at least one support component, in particular on a flat support component of the cabin floor. It is within the scope of the invention that the load distribution component and / or the support component of the cabin floor extends over the entire area of the cabin floor or extends essentially over the entire area of the cabin floor. The flat support component of the cabin floor preferably has support elements which project or protrude into the surface of the support component, in particular in the form of support ribs and / or support beads and / or support knobs, by means of which support elements the strength or stability of the cabin floor is preferably increased. According to a recommended embodiment of the invention, the flat load distribution component of the cabin floor engages positively in the flat support component of the cabin floor. It is preferred that the flat load distribution component of the cabin floor has positive locking elements on its underside, which engage in complementary positive locking elements of the flat support component of the cabin floor. According to a recommended embodiment of the invention, the flat load distribution component of the cabin floor consists of metal or essentially metal, and the support component or the flat support component of the cabin floor preferably consists of the thermoplastic material or essentially of the thermoplastic material.

In principle, the support component of the cabin floor can be designed in different ways within the scope of the invention. It can be, for example, at least one support strut, a support grid or the like. The at least one support component can be made of plastic and / or metal or essentially made of plastic and / or Essentially consist of metal. According to an embodiment variant of the invention, the cabin floor or the flat load distribution component of the cabin floor consists of at least one plastic and at least one support component, which can consist of metal, adjoins the cabin floor or the flat load distribution component. Advantageously, this at least one support component made of metal is at least partially integrated in the plastic of the cabin floor or in the plastic of the flat load distribution component. The at least one support component made of metal can be rotated into the plastic of the cabin floor or into the plastic of the load distribution component as part of a plastic rotation process. According to a recommended embodiment, a plurality of support components protrude from the underside of the cabin floor or from the underside of the flat load distribution component of the cabin floor, these support components expediently being designed as metallic support components and partially integrated into the plastic of the cabin floor or into the plastic of the load distribution component are, in particular rotated.

A very particularly preferred embodiment of the invention is characterized in that an assembly comprising at least the cabin floor or at least one component of the cabin floor and at least one side wall connected to it, preferably from a plurality of side walls connected to it, as a one-piece or monolithic assembly made of thermoplastic Plastic is made. Then, the cabin floor or cabin floor component (in particular the flat support component of the cabin floor) and the side wall or the side walls form an integral unit made of thermoplastic material. In this case, at least one load diverting element is preferably embedded in at least one wall part, and connecting elements are expediently attached to this load diverting element connected, which are preferably connected to the conveyor or to the conveyor and / or catching device. - As is proven, two and preferably three side walls form a one-piece unit made of thermoplastic with the cabin floor or with at least one component of the cabin floor. - A very particularly recommended embodiment of the invention is characterized in that an aggregate from the cabin floor or at least one component of the cabin floor and from at least one side wall connected to it - in particular from a plurality of side walls connected to it - and from the cabin ceiling a one-piece or form a monolithic unit made of thermoplastic. At least one unit is preferably formed from the cabin floor or at least one component of the cabin floor and at least from the rear side wall and from the cabin ceiling as a one-piece or monolithic unit made of thermoplastic material.

A highly recommended embodiment, which is of particular importance in the context of the invention, is characterized in that an assembly from the cabin floor or at least one component of the cabin floor and from three side walls and from the cabin ceiling as a one-piece or monolithic assembly made of thermoplastic material is made. - Basically, instead of the one-piece construction of the elevator car according to the invention, a modular construction of the car can also take place. This means that the individual wall parts - in particular made of thermoplastic plastic - are combined to form the cabin or are connected to one another. For example, the car floor, the side walls and the car ceiling can be assembled as modular components of the elevator car to form the entire elevator car.

According to a recommended embodiment variant, at least one wall part and preferably a side wall of the elevator car according to the invention has reinforcement elements distributed over its wall surface or side wall surface, in particular reinforcement ribs and / or reinforcement beads distributed over the side wall surface. In this respect, the reinforcing elements can be reinforcing ribs emerging from the respective side wall surface and / or reinforcing beads embedded in the respective side wall surface. To this extent, the invention is based on the finding that the load-bearing cross-sectional area can be effectively increased by the reinforcing elements introduced into the side wall area.

It is within the scope of the invention that the door opening of the cabin can be closed and in particular can be closed by means of a cabin door. A very particularly preferred embodiment of the invention is characterized in that fixing elements and / or stop elements for the cabin door on and / or in the side walls made of thermoplastic and / or on and / or in the cabin ceiling made of thermoplastic and / or on and / or are provided in the cabin floor made of thermoplastic plastic. The fixing elements and / or stop elements for the cabin door are expediently integrated into the plastic of the respective wall part. A proven embodiment of the invention is characterized in that the cabin door is designed as a roller blind, in particular as a slatted roller blind or as a folding roller blind. In principle, other embodiments of the car door for the elevator car according to the invention are also conceivable.

An embodiment of the invention is characterized in that the wall thickness of at least one side wall increases in the direction of the load dissipation element. According to a variant it is the side wall on which or in which the load dissipation element is arranged and the thickness of this side wall increases toward the load dissipation element. Alternatively or additionally, the thickness of at least one side wall, which is connected to the side wall with the load dissipation element, increases towards the load dissipation element or towards the side wall with the load dissipation element. It is recommended that in the embodiment variants explained above, the thickness of the at least one side wall increases by at least 50%, preferably by at least 75% and preferably by at least 90%. It is fundamentally within the scope of the invention that the thickness of at least one side wall or the thickness of at least one region of at least one side wall is set up in this side wall as a function of the load dissipation.

According to an embodiment variant of the invention, at least one wall part, preferably at least one side wall, of the elevator car has an opening or an opening, this opening or this opening is expediently closed with a removable plate, in particular with a removable transparent plate. The opening or opening is preferably designed with the proviso that after removal of the plate or transparent plate, maintenance and / or cleaning and / or repair work can be carried out from the cabin. Another embodiment variant of the invention is characterized in that a viewing opening is formed in the cabin floor and this viewing opening can be at least partially closed by the flat load distribution component of the cabin floor.

The invention also relates to a method for producing an elevator car, the elevator car being manufactured from a plurality of wall parts - in particular from wall parts in the form of a car floor, side walls and a cabin ceiling - wherein at least one wall part - preferably a plurality of wall parts - is manufactured by means of a plastic molding process, in particular by plastic rotary sintering and / or by plastic blow molding. It is within the scope of the invention that an assembly is manufactured from at least two wall parts, preferably from at least three wall parts, preferably from at least four wall parts and in particular from at least five wall parts or from five wall parts as a one-piece or monolithic unit. It is also within the scope of the invention that the wall parts or the assembly are / are made from the wall parts from at least one thermoplastic, preferably from at least one polyolefin and preferably from polyethylene and / or polypropylene. Polyethylene is particularly preferred as the material. In principle, polyamide can also be used as the thermoplastic for the wall parts or for the unit.

If, according to a preferred embodiment, a flat load-dissipation element - in particular a load-dissipation plate - is integrated in a side wall of the cabin and - in accordance with the particularly preferred embodiment variant described above - a surface of the load-dissipation element or the load-dissipation plate on the outside of the cabin is uncovered by the plastic of the associated side wall, The plastic components of the cabin, in particular the side wall assigned to the load-dissipation element, are preferably first produced using a plastic molding process without integrating the load-dissipation element. With regard to the possible embodiments, reference is made to the above statements. In the plastic molding process, a recess is expediently formed for the load-dissipation element or for the load-dissipation plate, and the load-dissipation element or the load-dissipation plate is only after the Plastic molding process or plastic rotation process used in the recess. According to one embodiment, the load-dissipation element or the load-dissipation plate is shrunk into the recess in the side wall in a form-fitting and / or force-fitting manner in a shrinking process or thermal shrinking process that follows the plastic molding process.

It has already been explained above that, according to a preferred embodiment, the thickness of at least one side wall increases in the direction of the load dissipation element. In the context of a plastic molding process used according to the invention, the wall thickness of at least one side wall can be adjusted in a simple manner as a function of the load dissipation by controlling and / or regulating the heat input accordingly. In this regard, too, a plastic molding process used according to the invention is particularly advantageous.

The invention is based on the finding that the elevator car according to the invention can be produced in a simple and inexpensive manner and in a cost-effective manner. It is particularly important that wall parts of the elevator car or preferably all wall parts of the elevator car consist of thermoplastic material or essentially of thermoplastic material. Nonetheless, effective load transfer or force transfer can take place, in particular in the case of an elevator car with a low weight or with a low mass. The elevator car can be operated in an elevator shaft in a functionally reliable manner and there are no disadvantages compared to conventional elevator cars. In addition to the relatively simple and inexpensive manufacture of the elevator car according to the invention, it should also be emphasized that the components of the elevator car are distinguished by excellent recyclability. The elevator car according to the invention continues to be an aggregate that meets all requirements in terms of strength and is characterized by sufficient resistance to mechanical influences.

Fig. 1

eine perspektivische Darstellung einer erfindungsgemäßen Aufzugkabine,

Fig. 2

ausschnittsweise einen Schnitt durch den Gegenstand nach Fig. 1,

Fig. 3

den Gegenstand gemäß Fig. 2 in einer anderen Ausführungsform,

Fig. 4

ein Schnitt im Bodenbereich der erfindungsgemäßen Aufzugkabine,

Fig. 5

eine Seitenansicht einer Seitenwand der Aufzugkabine,

Fig. 6

eine perspektivische Ansicht eines Lastableitungselementes bzw. einer Lastableitungsplatte der Aufzugkabine und

Fig. 7

eine Seitenansicht einer weiteren bevorzugten Ausführungsform der Erfindung im Schnitt.

The invention is explained in more detail below on the basis of a drawing which represents only one exemplary embodiment. In a schematic representation:

Fig. 1

a perspective view of an elevator car according to the invention,

Fig. 2

a section of a section through the object Fig. 1 ,

Fig. 3

the subject according Fig. 2 in another embodiment,

Fig. 4

2 shows a section in the floor area of the elevator car according to the invention,

Fig. 5

a side view of a side wall of the elevator car,

Fig. 6

a perspective view of a load dissipation element or a load dissipation plate of the elevator car and

Fig. 7

a side view of another preferred embodiment of the invention in section.

The figures show an elevator car 1 according to the invention for the transport of people and goods, which in the exemplary embodiment is the May act elevator car 1 of a construction site elevator. The elevator car 1 according to the invention can be used in particular for elevators of wind power plants or wind turbines, in particular in the course of creating the wind power plants or wind turbines. The elevator car 1 preferably and in the exemplary embodiment has a car floor 2, three side walls 3, 4, a car ceiling 5 and a door opening 6. The elevator car 1 can be walked on or loaded through the door opening 6. The door opening 6 is expediently closed, preferably with a roller blind, not shown in the exemplary embodiment, in particular a slatted roller blind.

In the exemplary embodiment, the cabin ceiling 5, the three side walls 3, 4 and a support component 11 of the cabin floor 2 are made of thermoplastic material or essentially of thermoplastic material. The thermoplastic may and preferably is a polyolefin in the exemplary embodiment, and particularly preferably polyethylene. Preferably and in the exemplary embodiment, the unit is made of the cabin ceiling 5, the three side walls 3, 4 and the support component 11 of the cabin floor 2 as a one-piece or monolithic unit made of thermoplastic material. It is recommended to manufacture by plastic rotary sintering or by blow molding.

Proven and in the embodiment according to Figures 2 and 3rd the rear side wall 4 or the cabin ceiling 5 is connected to a conveying and catching device 8 of the cabin 1 for load transfer in each case via a load transfer element 7. The conveying and catching device 8 serves - in particular in interaction with a toothed rack guide or the like - for moving the elevator car in an elevator shaft.

According to the preferred embodiment and in the embodiment Fig. 2 the load transfer element 7 is integrated in the plastic of the rear side wall 4 and is completely surrounded by the plastic of the rear side wall 4. The load-dissipation element 7 is preferred and, in the exemplary embodiment, is designed as a flat load-dissipation element 7 in the form of a load-dissipation plate. This load transfer plate is integrated into the plastic of the rear side wall 4. Appropriately and in the exemplary embodiment, the load transfer plate is arranged parallel to the rear side wall 4. The load diverting element 7 or the load diverting plate consists, as recommended and in the exemplary embodiment, of a metallic material.

In the embodiment according to Fig. 2 the conveyor and catching device 8 is connected to the rear side wall 4 of the cabin 1. This rear side wall 4 is opposite the door opening 6 of the cabin 1. Preferably and in the exemplary embodiment, the load diverting element 7, which is in the form of the flat load diverting plate, is connected to the conveying and catching device 8 via connecting elements 9. These connecting elements 9 pass through the plastic of the assigned rear side wall 4. The connecting elements 9 may be preferred and in the exemplary embodiment linear metal threaded rods which can engage in a corresponding internal thread of the load-carrying element 7 or the load-carrying plate.

According to a further preferred embodiment and in the exemplary embodiment according to Fig. 3 the load transfer element 7 is arranged below the cabin ceiling 5 or below the plastic of the cabin ceiling 5. The load dissipation element 7 is also preferably embodied here as a flat load dissipation element 7 in the form of a load dissipation plate expediently bears directly on the underside of the cabin ceiling 5. The load transfer plate is arranged parallel to the cabin ceiling 5. Also in the embodiment according to Fig. 3 the load-diverting element 7 or the load-diverting plate is connected via connecting elements 9 to the conveying and catching device 8 arranged above the cabin ceiling 5. These connecting elements 9 also pass through the plastic of the cabin ceiling 5. In the exemplary embodiment Fig. 3 the cabin ceiling 5 is, as it were, clamped between the conveying and catching device 8 and the load transfer element 7 or the load transfer plate. The connecting elements 9 reaching through the plastic of the cabin ceiling 5 are also designed here as linear connecting elements 9 and in particular are designed as metallic threaded rods.

It is within the scope of the invention that the cabin floor 2 forms or has the load-receiving surface of the cabin 1 and that the load is diverted or force-derived essentially via the - preferably one-piece - cabin 1 made of thermoplastic plastic to the load-transfer element 7. The Fig. 4 shows a particularly preferred embodiment of the car floor 2 for the elevator car 1 according to the invention. The car floor 2 here has a flat load distribution component 10, via which the load is diverted into the car 1 from the thermoplastic material. Preferably and in the embodiment according to Fig. 4 the flat load distribution component 10 is supported on a flat support component 11 of the cabin floor 2. Preferably, and in the exemplary embodiment, the flat load distribution component 10 is designed as a flat metallic floor component, while the flat support component 11 consists of thermoplastic and is preferably and in one piece connected to the side walls 3, 4 of the cabin 1 in the exemplary embodiment. Expediently and in the exemplary embodiment, the flat support component 11 has support ribs for reinforcing the Cabin floor 2 on. Preferably, and in the exemplary embodiment, the flat load distribution component 10 positively engages in the ribs of the flat support component 11 with form-locking elements 13.

The Fig. 5 shows a further tried and tested embodiment of the invention, namely the preferred embodiment of a side wall 3 of the elevator car 1 according to the invention. This side wall 3 has reinforcement elements 12, as recommended and, in the exemplary embodiment, distributed over their side wall surface in the form of reinforcement beads embedded in the side wall surface. In this way, the strength of the relevant side wall 3 or the entire elevator car 1 can be increased. The reinforcing beads are, as it were, molded into the thermoplastic material of the side wall 3. - According to this embodiment Fig. 5 the side wall 3 also has an opening or an opening 14 which can be closed with a removable, transparent plate 15. After disassembly of this transparent plate 15, maintenance, repair or cleaning work can be carried out from the cabin 1 to the outside.

The Fig. 6 shows a particularly preferred embodiment of a load transfer element 7 for the elevator car 1. Appropriately and in the exemplary embodiment, the load transfer element 7 is designed as a flat load transfer plate made of a metallic material. Preferably and in the exemplary embodiment, the load dissipation element 7 or the load dissipation plate has a plurality of form-fitting openings 16, into which threaded inserts 17 are inserted in a form-fitting manner. For this purpose, the threaded inserts 17 are preferred and, in the exemplary embodiment, are equipped with axial grooves in which axial ribs of the form-fitting openings 16 engage in a form-fitting manner. As is recommended and in the exemplary embodiment, the threaded inserts 17 each have an internal thread 18, into which preferably and in the exemplary embodiment, a connecting element 9 can be screwed in for connection to the conveying and catching device 8. For example, connecting elements 9 in the form of linear threaded rods can be screwed into this internal thread 18 of the threaded inserts 17. The connecting elements 9 are preferably integrated in the plastic of the respective wall part of the elevator car 1.

The Fig. 7 shows a particularly preferred embodiment of the invention, wherein part of the rear side wall 4 of the elevator car 1 is shown in section. Here, the load dissipation element 7 is again designed as a load dissipation plate, which is preferred and in the exemplary embodiment according to Fig. 7 is only partially integrated into the thermoplastic plastic of the rear side wall 4. The load transfer plate is positively covered towards the inside of the cabin I by the plastic of the rear side wall 4. Expediently and in the exemplary embodiment, the load transfer plate is free or uncovered from the thermoplastic material of the side wall to the outside of the cabin A over its entire plate surface. Preferably and in the embodiment according to Fig. 7 the load transfer plate is designed as a cuboid load transfer plate. It is integrated with all cuboid sides - with the exception of the cabin surface on the outside of the cabin - in the plastic of the side wall, and has been proven to be form-fitting.

According to a preferred embodiment and in the embodiment Fig. 7 the conveying and / or catching device is arranged inside the cabin 1 or inside the cabin. Appropriately and in the exemplary embodiment, the load-transfer plate is connected to the conveyor and / or catching device arranged on the inside of the cabin via a plurality of connecting elements 12 which pass through the plastic of the side wall 4.

Preferably and in the exemplary embodiment, the connecting elements 9 are designed as linear connecting elements - in particular as connecting screws. Preferably and in the exemplary embodiment, the connecting elements 9 pass through the sleeves 19 inserted into the plastic of the rear side wall 4 with play. As a result, the loads or forces are essentially transmitted via the load transfer plate.

Claims (20)

Elevator car (1) for the transportation of people and goods, with a plurality of wall parts, in particular wall parts in the form of a car floor (2), in the form of side walls, preferably at least three side walls (3, 4) and in the form of a car ceiling (5) - And with at least one door opening (6), at least one wall part - in particular the cabin floor (2), the cabin ceiling (5) and at least one side wall (3, 4), preferably at least two side walls (3, 4) and preferably at least three Side walls (3, 4) - are made of at least one thermoplastic or essentially at least one thermoplastic, and at least one wall part - in particular the cabin ceiling (5) and / or at least one side wall (3, 4) and / or the cabin floor (2) is / are connected to a conveying device or to a conveying and / or catching device (8) of the cabin (1) for at least one load dissipation element (7). Elevator cabin according to claim 1, wherein the thermoplastic material is at least a polyolefin - in particular polyethylene and / or polypropylene - and / or a polyamide. Elevator cabin according to one of claims 1 or 2, wherein the load deflection via at least one load deflection element (7) arranged on or in the car ceiling (5) and / or via at least one on or in at least one side wall (3, 4) - preferably on / in the rear side wall (4) - arranged load transfer element (7). Elevator cabin according to one of claims 1 to 3, wherein the load transfer element (7) is integrated in the plastic of at least one side wall (3, 4) - preferably the rear side wall (4) - and preferably of the plastic of the at least one side wall (3, 4 ) - preferably the rear side wall (4) - is surrounded, in particular is completely surrounded or is essentially completely surrounded. Elevator car according to one of claims 1 to 4, wherein the load transfer element (7) is arranged below the car ceiling (5), in particular immediately below the car ceiling (5). Elevator car according to one of claims 1 to 5, wherein the at least one load-dissipation element (7) is a flat load-dissipation element (7) - in particular a load-dissipation plate or a load-dissipation grid -, the load-dissipation element (7) preferably being flat against the associated car ceiling (5) and / or is connected to the associated side wall (3, 4) - in particular the rear side wall (4) or is integrated in the associated side wall (3, 4) - in particular the rear side wall (4). Elevator car according to one of claims 1 to 6, wherein a load transfer element (7) is made of a material different from the thermoplastic material or is essentially made and in particular is made of a metallic material or is essentially made. Elevator cabin according to one of claims 1 to 7, wherein a load transfer element (7) via at least one connecting element (9) - preferably via a plurality of connecting elements (9) - is connected to the conveying device or to the conveying and / or catching device (8) and the connecting element (9) or the connecting elements (9) is preferably the plastic of the associated cabin ceiling (5) and / or the Plastic of the associated side wall (3, 4) - in particular the rear side wall (4) - passes through. Elevator car according to one of claims 1-8, wherein the flat load-dissipating element (7) - in particular a load-dissipating plate - is only partially integrated in a side wall (3, 4) made of thermoplastic material - in particular in a rear side wall (4) made of thermoplastic material, wherein the load-diverting element (7) is positively covered on the inside of the cabin by the plastic of the side wall (3, 4) and on the outside of the cabin is free or uncovered by the plastic of the side wall at least over most of its area - preferably over the entire surface. Elevator car according to claim 9, wherein the conveying device or the conveying and / or catching device (8) is arranged on the inside of the car, and wherein the flat load-dissipating element (7) or the load-dissipating plate is connected via at least one connecting element (3) that penetrates the plastic of the side wall (3, 4). 9), in particular via a plurality of connecting elements (9) to the cabin-side conveyor device or conveyor and / or catching device (8). Elevator car according to one of claims 1 to 10, wherein the car floor (2) forms or has a load-receiving surface of the car (1) and wherein the load dissipation is only or essentially via the car (1) made of thermoplastic plastic to the at least one load transfer element ( 7) is done. Elevator car according to one of claims 1 to 11, wherein the car floor (2) has at least one or a flat load distribution component (10), Via which the load is diverted into the cabin (1) from thermoplastic and the flat load distribution component (10) is preferably supported on at least one flat support component (11) of the cabin floor (2). Elevator cabin according to one of claims 1 to 12, wherein an aggregate of at least the cabin floor (2) or at least one component of the cabin floor (2) and at least one side wall connected to it, preferably from a plurality of side walls connected to it, as a one-piece unit made of thermoplastic Plastic is manufactured or is essentially manufactured. Elevator car according to one of claims 1 to 13, wherein an aggregate of the car floor (2) or at least one component of the car floor (2) and at least one side wall (3, 4) connected to it - in particular from a plurality of side walls connected to it ( 3, 4) - and from the cabin ceiling (5) as a one-piece unit made of thermoplastic material or is essentially manufactured. Elevator car according to one of claims 1 to 14, wherein at least one side wall (3, 4) has reinforcement elements (12) distributed over its side wall surface, in particular reinforcement elements (12) in the form of reinforcement ribs and / or reinforcement beads. Elevator car according to one of claims 1 to 15, wherein the door opening (6) of the car (1) can be closed by a car door and wherein fixing elements and / or stop elements for the car door on and / or in at least one side wall (3) and / or Cabin ceiling (5) and / or the cabin floor (2) are provided. Elevator car according to one of claims 1 to 16, wherein the wall thickness of at least one side wall (3, 4) increases or decreases depending on the load dissipation. Method for producing an elevator car - in particular according to one of claims 1 to 17 -, wherein the elevator car is manufactured from a plurality of wall parts, in particular from wall parts in the form of a car floor (2), side walls (3, 4) and a car ceiling (5) , wherein at least one wall part, preferably a plurality of wall parts, is produced by means of a plastic molding process - in particular by plastic rotary sintering and / or by plastic blow molding. The method of claim 18, wherein an assembly of at least two wall parts, preferably from at least three wall parts, preferably from at least four wall parts and in particular from at least five wall parts or from five wall parts is made in one piece or monolithically. Method according to one of claims 18 or 19, wherein the wall parts or the unit is / are made of at least one thermoplastic, preferably at least one polyolefin and preferably made of polyethylene and / or polypropylene.

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