Mounting element and mounting system for the vertical mounting of elevator rails

Abstract

Mounting element (1) for the vertical mounting of at least two elevator rails (2) in an elevator shaft, wherein the elevator rails (2) are car rails and / or counterweight rails, the mounting element (1) comprising a one-piece, in particular monolithic, U-shaped base body with two mounting arms (1a) and a connecting web (1b) connecting the mounting arms (1a), wherein the connecting web (1b) has a connecting web abutment contour (1b2) at each end region (1b1) and each mounting arm (1a) has a mounting arm abutment contour (1a1), and wherein each connecting web abutment contour (1b2) is designed corresponding to a mounting arm abutment contour (1a1) associated with this connecting web abutment contour (1b2).

Description

Technical field The following descriptions relate to a mounting element and a mounting system for the vertical mounting of at least two elevator rails in an elevator shaft, wherein the elevator rails are cabin rails and / or counterweight rails. Background of the invention It is known that elevators in buildings are guided through elevator shafts containing vertically running elevator rails. These rails serve as guides for the elevator car and, if necessary, for a counterweight. The precise alignment and stable fastening of the elevator rails are essential for the safe and reliable operation of the elevator. The vertical mounting of elevator rails is typically achieved using special mounting elements that are attached to the shaft wall inside the elevator shaft. These mounting elements help to hold the rails in the desired position while simultaneously absorbing external forces such as vibrations or weight loads. Such mounting elements must therefore exhibit both high mechanical stability and precise dimensional accuracy. In practice, these elements are also expected to be quick and easy to install in order to minimize installation time and costs. Conventional mounting elements often consist of several individual parts that must be assembled during installation. This design can be prone to errors, especially if the individual parts are not manufactured precisely or are misaligned during assembly. Furthermore, the use of multiple parts can lead to tolerance issues, which in turn negatively affect the positioning accuracy of the elevator rails. Another well-known problem is that the connection between the elevator rails and the mounting element often lacks a defined or repeatable force-fit and form-fit connection. Particularly under loads from operation or due to thermal expansion of the components, movement or loosening can occur in the connection area, which can compromise the elevator's operational safety. Furthermore, a lack of precision in the fit of the abutment surfaces between the various elements makes the exact alignment of the rails difficult. An additional disadvantage of many conventional designs is that they do not offer modular or standardized interfaces, which makes flexible adaptation to different shaft geometries or elevator configurations difficult. As a result, specific solutions often have to be developed for individual elevator projects, which involves additional planning and manufacturing effort. For the installation and adjustment of the entire guide and car system, the correct, angular positioning of the lower rail sections in the pit is crucial. Known solutions are often multi-part, requiring adjustment effort and increasing the likelihood of angular errors. There is a need for a simple, cost-effective, and simultaneously highly precise pit support that reliably defines the position of the three rails and provides exact 90° references on both sides. Description of the invention Given this situation, the present problem is to find an improved mounting element. In particular, a mounting element for the vertical installation of at least two elevator rails in an elevator shaft is to be proposed, in which the structural stability and installation accuracy can be improved. In particular, at least one of the aforementioned disadvantages, preferably all of them, should be eliminated by the invention. The present problem is solved by the features of the independent claims. Advantageous embodiments are specified in the dependent claims, the description, and the drawings. Where technically feasible, the teachings of the dependent claims can be combined arbitrarily with those of the main and dependent claims. In particular, the problem is solved by a mounting element for the vertical mounting of at least two elevator rails in an elevator shaft, wherein the elevator rails are cabin rails and / or counterweight rails, the mounting element comprising a one-piece, in particular monolithic, U-shaped base body with two mounting arms and a connecting web connecting the mounting arms, wherein the connecting web has a connecting web abutment contour at each end region and each mounting arm has a mounting arm abutment contour, and wherein each connecting web abutment contour is designed to correlate with a mounting arm abutment contour assigned to this connecting web abutment contour. In other words, the mounting element comprises a one-piece, U-shaped base body with two mounting arms and a connecting web. The end sections of the connecting web each have a bearing contour, just as each mounting arm has its own bearing contour. Each bearing contour of the connecting web is designed to correspond to a corresponding bearing contour of the respective mounting arm. The precise alignment of the abutment contours ensures that the mounting surfaces of the mounting element, to which the elevator rails can be attached, are correctly aligned vertically and horizontally during installation. In particular, the mounting arms are precisely aligned with the connecting web by the abutment contours and, due to the building structure, at right angles to each other within the elevator shaft. This allows the elevator rails to be installed correctly and vertically, even in the elevator shaft, despite, for example, building-related manufacturing tolerances. In other words, the aforementioned component allows for a positive-locking, stable connection between the components of the mounting element, contributing to improved force transmission and increased rigidity of the overall structure. Simultaneously, it facilitates precise alignment of the installed elevator rails. The monolithic design eliminates the need for joining or connecting elements, thus avoiding potential weak points and achieving high structural stability. The combination of monolithic construction and precisely aligned abutment contours creates a robust and accurately alignable mounting element. The task is further accomplished by a mounting element consisting of a U-shaped base body made of sheet metal, with a connecting web and two mounting arms each bent at right angles away from the connecting web at one end region, wherein the connecting web has a connecting web abutment contour at each end region and each mounting arm has a mounting arm abutment contour, and wherein each connecting web abutment contour is designed to correlate with a mounting arm abutment contour assigned to this connecting web abutment contour. Manufacturing the mounting element from a single sheet of metal facilitates cost-effective and precise production without the need for joining processes. This results in high load-bearing capacity while simultaneously utilizing material efficiently. The use of sheet metal also promotes easy processing and enables a compact geometry. The right-angle bend of the mounting arms allows for repeatable positioning and secure mounting of the elevator rails. This results in a particularly economical manufacturing solution that fulfills the requirement without compromising stability or accuracy. The problem is further solved by a mounting system for an elevator car guide, comprising the mounting element as described above and / or according to one of the alternative / additional embodiments described below, and at least two elevator rails, wherein the alignment device is arranged and configured to positively engage one of the at least two elevator rails with its recess. This configuration ensures that the positioning of the elevator rails can be carried out precisely, thereby improving the guidance quality of the elevator car. Furthermore, the positive engagement of the rail by the alignment device enables secure installation without additional alignment tools. This contributes to the efficiency of the installation as well as the operational reliability of the elevator system.Integrating the mounting element into a comprehensive system with a defined alignment device results in high accuracy in the assembly of the elevator rails and simultaneously increases the structural stability of the overall system. The mounting element and mounting system are particularly suitable for installation on the floor of the elevator shaft, especially directly on the floor and / or directly on the wall. Preferably, the mounting element or mounting system is designed to align three elevator rails vertically within the elevator shaft and to facilitate their installation. Specifically, the elevator rails are two car rails, each aligned and fixed to one of the mounting arms of the mounting element. Furthermore, the mounting element / mounting system is specifically designed to be connected to a counterweight rail in an area traversed by a central cross-sectional axis. According to a specific embodiment of the aforementioned device, a one-piece, bent sheet metal angle bracket made of 3 mm thick steel is provided, which securely and precisely supports the lower sections of three elevator rails in a pit of the elevator shaft. The mounting element is secured in the pit with two anchor bolts; the elevator rails themselves are connected to the sheet metal angle bracket using standard clamps and screws. The base of the mounting element is contoured such that two chamfers intersect, forming defined 90° stop surfaces on both sides. These chamfers act as precise abutments, ensuring the right-angled alignment of the rails to each other and relative to the pit reference. Integrated alignment features can define the flatness of the base plate and the rotational position of the elevator rails, thus facilitating correct orientation on both the car and counterweight sides.The geometry of the sheet metal angle is designed in such a way that it can be scaled to different system dimensions and different rail types without any fundamental structural modifications. In this specific embodiment, the one-piece design of the mounting element reduces the number of parts, costs, and assembly time. The intersecting chamfers create reproducible 90° references on both sides, minimizing measuring and adjustment efforts. Fastening with two anchor bolts enables quick and robust anchoring in the pit, while the use of standard clamps and screws ensures compatibility with existing rail hardware. The integrated alignment features guarantee a flat surface and correct orientation of the three rails directly in the pit, thus providing a precise foundation for the subsequent elevator assembly. It is also conceivable to mount the mounting element / mounting system in a wall / ceiling area of ​​the elevator shaft. For this purpose, additional mounting tabs can be molded onto the mounting element or formed by punching them out, particularly to allow connection to a wall area of ​​the elevator shaft. Advantageous aspects are explained below, followed by a description of preferred modified embodiments. Explanations, particularly regarding advantages and definitions of features, are essentially descriptive and preferred examples, but not limiting ones. If an explanation is limiting, this will be explicitly stated. In this context, the term "one-piece" generally means that the components of the base body are permanently joined to form a single unit, which can also be achieved, for example, through material-bonding joining processes such as welding. The preferred term "monolithic" further specifies that the base body consists of a single volume of material, formed or thermoformed from a sheet metal blank, without any joints, and is made entirely of a single piece of material, for example, without the need for subsequent joining techniques to create the basic shape. Alternatively or additionally, the outer edges of the respective abutment contours can be aligned at 90 degrees to each other in the basic state of the monolithic base body, with the mounting arms and the connecting web extending in a common plane in this basic state. This allows for flat storage and facilitates handling and transport of the mounting element before installation. The base body can thus be efficiently stamped or manufactured. Furthermore, the flat basic state allows for simple automated processing. Alternatively or additionally, the outer edges of the respective abutment contours can be designed so that, in the assembled state of the monolithic base body, the mounting arms and the connecting web extend in mutually perpendicular planes. This ensures a defined angular alignment in the assembled state. The positive fit between the abutment contours serves as a mechanical stop. This increases assembly precision and reduces manufacturing tolerances in the installed state. Alternatively or additionally, the U-shaped base body can be designed with an L-shaped profile in cross-section, comprising a first and a second L-leg. This profiling results in increased rigidity of the mounting element while simultaneously reducing material usage. The L-shape also facilitates precise right-angle alignment of the components to be fastened. The L-profile can be manufactured using simple bending operations. Alternatively or additionally, the first and second legs of the U-shaped base body can be designed to meet at right angles via a bend line and be connected to each other. The respective abutment contours can be formed and arranged as chamfers, interacting in pairs to align the two legs at right angles to each other. This improves the structural accuracy of the element during assembly and minimizes the risk of a misaligned connection. The chamfers serve as passive alignment devices, enabling a controlled transition of the base body from its initial state to its assembled state. Alternatively or additionally, the U-shaped base can be machined from a single sheet of metal, with the L-shaped legs, mounting arms, and connecting bridge formed by a total of two cuts and three bends in the sheet. This manufacturing method simplifies production and reduces manufacturing costs. The small number of machining steps enables rapid production. Furthermore, the single-piece construction achieves high strength without joints. Alternatively or additionally, the U-shaped base body can be formed from a rectangular base piece, where the base piece is the rectangular sheet metal. Rectangular starting material is readily available and standardized in manufacturing. This reduces material costs and simplifies inventory management. Further processing by cutting and bending can be easily automated in series production. Alternatively or additionally, the L-shaped profile can be designed to consist solely of the first and a second L-leg. Such a minimalist structure allows for targeted functional performance with reduced material usage. It also simplifies the construction and lowers the weight. At the same time, sufficient stability is maintained for the intended mounting purposes. Alternatively or additionally, the length-to-width ratio of the U-shaped base body can be specified as being in the range of 8:1 to 12:1. This ratio enables a favorable moment distribution during load bearing. It contributes to improved bending stiffness. Furthermore, it promotes optimal alignment along the length of the rail. Alternatively or additionally, the outer contour of the rectangular base piece can be designed to be mirror-symmetrical on both sides to a center line perpendicular to the longitudinal axis. This allows for a symmetrical load distribution when installed. A mirror-image design simplifies assembly and reduces the potential for errors. The element can be used in either direction if required. Alternatively or additionally, the U-shaped base body can be designed with a mounting arm on each end, mirrored symmetrically to the center line. This also facilitates the symmetrical mounting of two elevator rails. It promotes the even distribution of forces across both rails and ensures accurate component orientation. Alternatively or additionally, the mounting element can be provided with two alignment devices for forcibly defining the position and angle of at least one elevator rail, with one alignment device being arranged on each of the mounting arms. This forced guidance ensures precise adjustment of the elevator rails. This increases the safety and ride comfort of the elevator car. It also reduces installation effort. Alternatively or additionally, the alignment device can be designed as a receiving contour, with the receiving contour corresponding to the elevator rail. This ensures a positive-locking fit that prevents the rail from twisting or slipping. This improves the long-term stability of the assembly. Furthermore, it enables a uniform interface for different rail shapes. Alternatively or additionally, each alignment device can be formed by a polygonal recess on at least one of the L-shaped legs. A polygonal geometry can perform specific guiding functions. For example, it can be coded to prevent incorrect assembly. The multi-sided shape also results in a positive locking connection in several directions. Alternatively or additionally, the polygonal recess can be designed to have a rectangular and a trapezoidal section, with both sections enclosed by a common edge formed on the base body. This combination allows for precise guidance with additional surfaces for load distribution. The common edge acts as a reference surface during assembly. Furthermore, the stepped shape increases flexibility for different rail geometries. Alternatively or additionally, the polygonal recess can be formed on both L-legs, with the first L-leg having a rectangular section and the second L-leg having a rectangular and a trapezoidal section, all sections being enclosed by a common edge formed on the base body. This arrangement creates a particularly stable, three-dimensional recess for the elevator rail. The double-sided design increases the holding force and reduces potential vibrations. At the same time, it facilitates installation in different mounting positions. Alternatively or additionally, the polygonal recess can be designed for the positive-locking insertion of a T-shaped elevator rail. Such a fit allows for the secure guidance and fixing of this specific rail shape.It prevents the rail from being pulled out or twisted under load. Furthermore, it enables precise, repeatable positioning during maintenance work. Where ordinal numbers, such as "first," "second," etc., are used, for example to designate a component, an element, a process step, or a process action, these ordinal numbers are solely for differentiation in the designation and do not indicate any dependencies or sequences. This means, in particular, that a device does not need to have a "first component" to have a "second component." A device can also have a "first component" and a "third component" without necessarily having a "second component." Multiple units with the same ordinal number are also possible, for example, multiple "first components." Brief description of the drawings The invention is explained in more detail below with reference to the accompanying drawings and preferred embodiments. The term "figure" is abbreviated as "Fig." in the drawings. In the drawings, Fig. 1a shows a schematic three-dimensional representation of an embodiment of the mounting system; Fig. 1b shows a schematic cross-sectional view through the cross-sectional axis X of a mounting element of the embodiment of Fig. 1a; Fig. 2a shows a schematic representation of the mounting element according to the embodiment in a basic state; Fig. 2b shows a schematic, section-by-section representation of the mounting element according to the embodiment in an assembled state; and Fig. 3 shows a schematic, section-by-section representation of the mounting system according to the embodiment of Fig. 1a from a perspective on the elevator shaft wall. Detailed description of the implementation examples The described embodiments are merely examples that can be modified and / or supplemented in various ways within the scope of the claims. Each feature described for a specific embodiment can be used independently or in combination with other features in any other embodiment. Each feature described for an embodiment of a specific claim category can also be used accordingly in an embodiment of a different claim category. Where expedient, the sections of the setup / packaging have been provided with reference numerals in all figures, but not exclusively. For the sake of clarity, sections with the same name have only been partially provided with reference numerals, particularly where also mentioned in the figure description. Fig. 1a shows a mounting element 1 and a mounting system 10 for the vertical mounting of at least two elevator rails 2 in an elevator shaft. The elevator shaft is not shown. The mounting element 1 has a monolithic, U-shaped base body with two mounting arms 1a and a connecting web 1b linking the mounting arms 1a. As shown, the U-shaped base body has an L-shaped profile in cross-section with a first L-leg 111 and a second L-leg 112; both legs 111, 112 meet at right angles A along a bend line K and are integrally connected. In the illustration, the base body of the mounting element 1 is in its assembled state: the mounting arms 1a are positioned in mutually perpendicular planes to the connecting web 1b, and the outer edges of the respective associated abutment contours 1b2, 1a1 are abutting each other. A connecting web abutment contour 1b2 is provided at each end region 1b1 of the connecting web 1b. Each mounting arm 1a has a corresponding mounting arm abutment contour 1a1. The abutment contours 1a1, 1b2 are designed as chamfers that interact with each other in pairs and ensure the orthogonal alignment of the L-legs 111, 112. This results in reproducible perpendicularity when bending from the basic state with a common plane of the connecting web 1b and mounting arms 1a into the assembled state. In the basic state, the outer edges of the abutment contours 1a1, 1b2 are aligned at 90 degrees to each other (see also Fig. 2a). The U-shaped base body is formed as a single-piece sheet metal component from a rectangular base piece; the L-shaped legs 111, 112, the mounting arms 1a, and the connecting web 1b are created, for example, by at least two cuts and three bends in this sheet metal. The base body of the mounting element 1 can also be stamped with a profile on the second L-shaped leg, thus defining the abutment contours of the mounting arms and the connecting web. Here, two tabs are formed symmetrically to a cross-sectional axis X, which in this case also forms a central axis, and the abutment contours are formed between these tabs. A tab located at the outermost end of each has alignment means 3 for aligning the elevator rails 2. An adjacent tab can have an elongated hole, but at least the corresponding abutment contour 1b2 to the respective mounting arm abutment contour 1a1.The tab formed on the second L-leg 112 of the mounting arm 1a extends further in the direction of the cross-sectional axis (in the basic state, see Fig. 2a) than the tab formed at the end area of ​​the connecting web 1b. The outer contour of the rectangular base of the mounting element 1 is mirror-symmetrical on both sides about a center line perpendicular to the longitudinal axis Y; in Fig. 1a, the cross-sectional axis X is indicated. Schematically, the cross-sectional axis X also corresponds to the center line about which the base body is mirror-symmetrical, with a mounting arm 1a arranged at each end face. The length-to-width ratio of the U-shaped base body ranges from 8:1 to 12:1. To force the position and angle of at least one elevator rail 2, two alignment receiving means 3 are provided, one of which is arranged on each mounting arm 1a. Each alignment receiving means 3 is realized as a receiving contour 3a, which is formed by a polygonal recess 3b on the base body, especially in the second L-leg 111. The polygonal recess 3b has a rectangular section and a trapezoidal section, which are enclosed by a common edge formed on the base body. In the embodiment shown, the polygonal recess 3b extends over the L-legs 111 and 112, with a rectangular section on the first L-leg 111 and a rectangular and a trapezoidal section on the second L-leg 112. Reference is also made to Fig. 2b, in which the individual sections of the recess 3b can be seen without the elevator rail 2 mounted.All sections are enclosed by the aforementioned edge. The receiving contour 3a is designed for the positive-locking insertion of a T-shaped elevator rail 2, such that the alignment receiving element 3 with its recess 3b positively locks in one of the at least two elevator rails 2 and defines its position relative to the mounting element 1. For the purpose of securing the elevator rail 2, each rail is fixed after alignment by the alignment receiving element 3. This can be done by a fixing element, as shown in Fig. 1a, i.e., in the form of a clamping plate / clamping element 4, which is screwed to the first leg 111 of the mounting arm 1a by means of a screw 4a. Alternative fixing means are conceivable, which are suitable after the elevator rail 2 has been positively aligned within the alignment receiving element 3. The perspective shown in Fig. 1a illustrates the mounting system 10 with the mounting element 1, the two mounting arms 1a, the connecting web 1b with the end regions 1b1 and the connecting web abutment contours 1b2, the mounting arm abutment contours 1a1, the bend line K between the L-legs 111, 112, and the alignment receiving means 3 with the polygonal recess 3b for the positive-locking reception of the elevator rail 2. The drawing also clearly shows the symmetry with respect to the center line X and demonstrates that the mounting arms 1a extend at right angles from the connecting web 1b, thus enabling the elevator rails 2 to be arranged vertically relative to the longitudinal axis Y. In addition, reference is made to a schematic cross-sectional representation (through the cross-sectional axis X) of the two legs 111, 112 of the base body of Fig. 1b, in which the right angle A is shown again. Fig. 2a shows the basic state of the mounting element 1 as a planar, rectangular sheet metal blank along the longitudinal axis Y. The connecting web 1b extends centrally, and a mounting arm 1a is arranged at each of its two end sections 1b1, mirror-symmetrically to the vertical cross-sectional axis X. The U-shaped base body and the L-shaped legs 111, 112 are produced from this basic blank by two cuts and three bends (see also Fig. 2b). The connecting web abutment contours 1b2 and the corresponding mounting arm abutment contours 1a1, which are formed as chamfers, are already designed in the blank so that they interact in pairs during assembly and reproducibly establish the right angle A. An elongated hole 5 is provided in each end section 1b1, the slot direction of which follows the longitudinal axis Y and which allows for the insertion of a screw.Further outwards, a recess 6 can be seen on each mounting arm 1a, which serves to reduce material and weight, improve accessibility during assembly and optionally to provide a position reference. Figure 2b additionally shows the corner region of a mounting arm 1a of the mounting element 1 in its assembled state. The L-shaped profile of the monolithic, U-shaped base body is visible, with the first leg 111 and the second leg 112 adjoining each other at right angles A along the bend line K. The alignment receiving element 3 is formed in the corner area, its receiving contour 3a being a polygonal recess 3b. The recess 3b extends over both L-legs 111 and 112; a rectangular section is formed on the first leg 111, and a rectangular and a trapezoidal section are provided on the second leg 112, with all sections being joined by a common edge formed on the base body. This receiving contour 3a is designed for the positive locking of a T-shaped elevator rail 2 (not shown here) and constrains its position and angle relative to the mounting element 1.Immediately adjacent to the receiving contour 3a, in the second leg 112, lies an elongated hole 5, the longitudinal direction of which runs parallel to the longitudinal axis Y and which can facilitate fine adjustment of the fastening; the elongated hole 5 serves in particular as a passage for a screw. The geometries at the transition from the connecting web 1b to the end regions 1b1 and further to the mounting arms 1a are pre-formed as chamfers, forming connecting web abutment contours 1b2 and mounting arm abutment contours 1a1; in the assembled state, their outer edges abut each other and, together with the bend line K, ensure the right-angled alignment of the legs 111, 112. Overall, Fig. 2a illustrates the bilateral mirror symmetry of the blank with respect to the X axis and the arrangement of all functional contours with respect to the Y longitudinal axis, while Fig. 2b shows the corner geometry formed by the blank with the polygonal recess 3b of the alignment receiving means 3 and the fastening situation cooperating with the clamping element 4 in the assembled state; together these elements ensure the form-fit and force-fit, angularly accurate guidance and fixing of at least one / more elevator rails 2 within the mounting system 10. Figure 3 shows the mounting element 1 in its assembled state, interacting with two lift rails 2, which are spaced apart from each other along the longitudinal axis Y. On the right, one lift rail 2 is guided through the alignment device 3; on the left, another lift rail 2 is attached to the continuous connecting web 1b. A clamping element 4, which interacts with the mounting arm 1a, is located on the side of the elevator rail 2 guided through the recess 3b of the alignment receiving means 3. The clamping element 4 presses the elevator rail 2 in the opposite direction to the receiving contour 3a and thus creates a force-fit fixation. The mounting element 1 of Figs. 1a to 3 is suitable for being mounted on a floor area of ​​an elevator shaft by means of the screw 5a, which is held and slidably guided in the elongated hole 5 (see Fig. 1a , Fig. 2a and Fig. 2b) of the second leg 112. In order to enable the mounting element 1 to be anchored not only via the screw 5a in the elongated hole 5 on the floor, but also to be attached in the middle of the elevator shaft, the monolithic, U-shaped base body can be structurally supplemented in such a way that additional wall and ceiling connections are possible without impairing the function of the alignment receiving means 3 and the right-angled design of the mounting element 1. A first embodiment (not shown) provides wall brackets formed from sheet metal as bent end tabs or side tabs on the mounting arms 1a and / or the connecting web 1b. Each wall bracket has at least one mounting hole, preferably designed as an elongated hole oriented in the Y direction, i.e., in the direction of the longitudinal axis Y, so that fine positional adjustment remains possible. The mounting element 1 can be anchored to a shaft wall via the elongated hole using anchor bolts; the tabs are preferably arranged symmetrically to the X axis so that the forces introduced when clamping the elevator rail 2 from 3 / 3a / 3b and an optional clamping element 4 are transferred into the shaft with minimal torsional stress. As a second option, suspension brackets on the upper side of the connecting web 1b are suitable. These brackets are bent upwards out of the sheet metal and have a through-hole for a threaded rod. The threaded rod is anchored chemically or mechanically in the shaft ceiling; the height can be adjusted along the vertical cross-sectional axis X using a lock nut (preferably an external counter plate). This allows the mounting element 1 to be positioned centrally in a suspended position. This suspension solution is particularly advantageous when no load-bearing wall surface is available in the immediate vicinity of the mounting arms 1a. For shaft geometries with varying distances, a telescopic spacer can be provided between 1b and the shaft wall, either additionally or alternatively. The spacer is attached to the connecting web 1b on the side of the second leg 112 via a further elongated hole aligned with the longitudinal axis Y or a separate opening with a swivel socket. The telescopic length adjustment compensates for lateral offset; the swivel socket compensates for angular deviations relative to the bend angle A between the two L-legs 111, 112 and reduces assembly stresses without affecting the bend line K. Another option is to provide an anchor rail (C / U profile) on the underside of the connecting web 1b, running in the Y direction. T-bolts can be moved within the anchor rail, allowing the mounting element 1 to be attached to existing brackets, crossbeams, or inserts in the shaft. This solution allows for a large-area load distribution and stepless fine positioning in the Y direction, while remaining compatible with the existing elongated holes 5 and the clamping technology via 4 / 4a. Additionally, the alignment receiving element 3 shown in Fig. 2 can be provided with damping inserts 16 with elastomeric intermediate layers in the area of ​​the circumferential bearing surfaces to dampen vibrations that are more strongly transmitted into the connecting web 1b in a "floating" central installation situation. For increased bending stiffness of the continuous web, a web reinforcement in the form of an attached flat or corrugated profile can be arranged on the underside; this stabilizes the Y-extended zone between the end regions 1b1 without changing the connecting web abutment contour 1b2 or the mounting arm abutment contour 1a1. Finally, the existing recess 6 (see Fig. 2b) on the mounting arms 1a can be contoured so that a counter plate or clamping bracket can be inserted from the rear; this enables a "wrapping" clamping connection on thin shaft posts or auxiliary profiles when drilling into the wall is not permitted. The position of the clamping bracket can be finely adjusted via the elongated holes 5 in Y. Reference symbol list 1 Mounting element 1a Mounting arm 1a1 Mounting arm abutment contour 1b Connecting web 1b1 End region of the connecting web 1b2 Connecting web abutment contour 111 First leg 112 Second leg 2 Elevator rail 3 Alignment device 3a Receipt contour of the alignment device for the elevator rail 3b Recess of the alignment device 4 Clamping element 4a Screw for clamping element 5 Slotted hole 6 Recess 10 Mounting system A Large alpha, angle between the two legs K Decay line X Perpendicular cross-sectional axis through longitudinal axis Y Longitudinal axis of the mounting element / longitudinal axis of the connecting web

Claims

Mounting element (1) for the vertical mounting of at least two elevator rails (2) in an elevator shaft, wherein the elevator rails (2) are car rails and / or counterweight rails, the mounting element (1) comprising a one-piece, in particular monolithic, U-shaped base body with two mounting arms (1a) and a connecting web (1b) connecting the mounting arms (1a), wherein the connecting web (1b) has a connecting web abutment contour (1b2) at each end region (1b1) and each mounting arm (1a) has a mounting arm abutment contour (1a1), and wherein each connecting web abutment contour (1b2) is designed corresponding to a mounting arm abutment contour (1a1) associated with this connecting web abutment contour (1b2). Mounting element (1) according to the preceding claim, wherein outer edges of the respective abutment contours (1a1, 1b2) are aligned at 90 degrees to each other in a basic state of the monolithic base body, wherein in the basic state the mounting arms (1a) and the connecting web (1b) extend in a common plane. Mounting element (1) according to the preceding claim, wherein the outer edges of the respective abutment contours (1a1, 1b2) are abutting each other in a mounting state of the monolithic base body, wherein in the mounting state the mounting arms (1a) and the connecting web (1b) extend in mutually perpendicular planes. Mounting element (1) according to one of the preceding claims, wherein the U-shaped base body is designed with an L-shaped profile in cross-section with a first and a second L-leg (111, 112). Mounting element (1) according to one of the preceding claims, wherein the first and second legs (111, 112) of the U-shaped base body adjoin each other at a right angle (A) via a bend line (K) and are connected to each other, and wherein the respective abutment contours (1a1, 1b2) are designed and arranged as chamfers and are configured to interact with each other in pairs in order to align the two legs (111, 112) at right angles to each other. Mounting element (1) according to one of the preceding claims, wherein the U-shaped base body is formed in one piece from a sheet and wherein the L-legs (111, 112), the mounting arms (1a) and the connecting web (1b) are formed by a total of two incisions and three bends in the sheet. Mounting element (1) according to one of the preceding claims, wherein the U-shaped base body is formed from a rectangular base piece, the base piece being the rectangular sheet metal. Mounting element (1) according to one of the preceding claims, wherein the L-shaped profile is formed exclusively from the first and a second L-leg (111, 112). Mounting element (1) according to one of the preceding claims, wherein the length-to-width ratio of the U-shaped base body is in a range of 8 to 1 to 12 to 1. Mounting element (1) according to one of the preceding claims, wherein an outer contour of the rectangular base piece is mirror-symmetrical on both sides to a center line perpendicular to the longitudinal axis (Y). Mounting element (1) according to the preceding claim, wherein the U-shaped base body has the mounting arm (1a) on each end face in a mirror-symmetrical manner to the center line. Mounting element (1) according to one of the preceding claims, comprising two alignment receiving means (3) for forcing a position and an angle of at least one elevator rail (2), wherein an alignment receiving means (3) is arranged on each of the mounting arms (1a). Mounting element (1) according to the preceding claim, wherein the alignment receiving means (3) is designed as a receiving contour (3a), wherein the receiving contour (3a) is designed to correlate with the elevator rail (2). Mounting element (1) according to one of the preceding claims, wherein each alignment receiving means (3) is formed by a polygonal recess (3b) on at least one of the L-legs (111, 112). Mounting element (1) according to the preceding claim, wherein the polygonal recess (3b) has a rectangular and a trapezoidal section, the two sections being enclosed by a common edge formed on the base body. Mounting element (1) according to one of the preceding claims, wherein the polygonal recess is formed on both L-legs (111, 112), wherein a rectangular section of the polygonal recess is formed on the first L-leg (111) and a rectangular and a trapezoidal section are formed on the second L-leg (112), wherein all sections are enclosed by a common edge formed on the base body. Mounting element (1) according to one of the preceding claims, wherein the polygonal recess (3b) is designed for the positive locking of a T-shaped elevator rail (2). Mounting system (10) for an elevator car guide, comprising the mounting element (1) according to at least one of the preceding claims, and at least two elevator rails (2), wherein the alignment receiving means (3) is arranged and designed to receive one of the at least two elevator rails (2) with its recess in a form-fitting manner. Mounting element (1) for the vertical mounting of at least two elevator rails (2) in an elevator shaft, wherein the elevator rails (2) are car rails and / or counterweight rails, the mounting element (2) comprising a U-shaped base body made of a sheet, with a connecting web (1b) and two mounting arms (1a) each bent at right angles away from the connecting web (1b) at an end region of the connecting web (1b), wherein the connecting web (1b) has a connecting web abutment contour (1b2) at each end region (1b1) and each mounting arm (1a) has a mounting arm abutment contour (1a1), and wherein each connecting web abutment contour (1b2) is designed corresponding to a mounting arm abutment contour (1a1) associated with this connecting web abutment contour (1b2).

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