FI126515B - Elevator - Google Patents

Description

ELEVATOR

FIELD OF THE INVENTION

[0001] The invention relates to an elevator, particularly to an elevator for vertically transporting passengers and/or goods.

BACKGROUND OF THE INVENTION

[0002] In the known elevators, the car travels along guide rails in a hoistway. An elevator typically comprises two or more vertically spaced apart landings where the car can be stopped so that the passengers can enter or exit it. For various reasons, such as for ensuring safe elevator operation and for proper controlling the elevator, the elevator needs to be informed of the car position relative to landings. The elevator can use the information for multiple alternative purposes. The known elevators are often provided with an arrangement for detecting car position that can be used to detect if and when the car is at a landing zone as well as identify at which landing zone the car is currently positioned. Such an arrangement can also be provided for detecting whether the car is leveled accurately at a landing. For example, if the car position detector arrangement detects that the car has shifted too far from the intended level while parked at a landing, the car position can be corrected by a so-called releveling function.

[0003] In a prior arrangement for detecting car position, known by the applicant, the arrangement comprises a detector arrangement mounted on the elevator car. The detector arrangement being mounted on the car, the detectors thereof travel along with the car. The arrangement further comprises a plurality of vertically spaced apart counterpart arrangements for said detector arrangement traveling with the elevator car. The counterpart arrangements are mounted inside the hoistway beside different landings, whereby the detector arrangement mounted on the elevator car can detect a counterpart arrangement when it is positioned at any of the landings. Each counterpart arrangement comprises a counterpart member for a detector of the detector arrangement mounted on the elevator car.

[0004] In prior art, such solutions have been suggested where the counterpart components have been mounted on a guide rail. One solution of this kind has been presented in document CN102344062.

[0005] The drawback of the solutions of prior art has been that the arrangement for detecting car position has been slow and laborious to install due to difficulties in positioning the car side components and the hoistway side counterpart arrangements accurately relative to each other.

[0006] Related prior art has been disclosed, inter alia, in documents JP2006321614A, EP1726553A1, US2015096844A1 and CN204873306U.

BRIEF DESCRIPTION OF THE INVENTION

[0007] The object of the invention is to introduce an elevator that is improved in terms of its position detection. An object is to introduce a solution by which one or more of the above defined problems of prior art and/or problems discussed or implied elsewhere in the description can be solved. An object is particularly to introduce an elevator solution wherein a car position detection arrangement can be installed simply, accurately and swiftly. Embodiments are presented, inter alia, where one or more of the above objects are realized cost effectively.

[0008] It is brought forward a new elevator comprising a hoistway; and an elevator car movable in the hoistway; and a counterweight movable in the hoistway; and a vertically oriented guide rail for guiding the elevator car; and a vertically oriented guide rail for guiding the counterweight; and vertically spaced apart landings; and a car position detection arrangement. The car position detection arrangement comprises a detector arrangement, which is mounted on the elevator car and comprises a first detector having a first detection range; and a plurality of vertically spaced apart counterpart arrangements for said car position detector arrangement, which are mounted on a guide rail inside the hoistway beside vertically spaced apart landings. Each counterpart arrangement comprises a first counterpart member for said first detector which first counterpart member is positioned to be within the vertical projection of the detection range of the first detector. Said first detector is arranged to detect presence of a first counterpart member within the first detection range. Each said counterpart arrangement comprises a horizontally oriented elongated supporting arm, which elongated supporting arm comprises a first end mounted on a guide rail and a second end; and a mounting base for one or more counterpart members, which mounting base is mounted on the second end of the elongated supporting arm; and a first counterpart member mounted on the mounting base. Said mounting base is mounted on the elongated supporting arm with steplessly adjustable fixing means, the position of the mounting base relative to the elongated supporting arm being steplessly adjustable in vertical direction between a topmost position and a lowermost position that are at least 50 mm apart in vertical direction. The vertical adjusting range of the steplessly adjustable fixing means is thereby at least 50 mm. Said first counterpart member is mounted on the mounting base with stepwise adjustable fixing means, the position of the first counterpart member relative to the mounting base being stepwise adjustable in vertical direction between a topmost position and lowermost position that are at least 200 mm apart in vertical direction. The vertical adjusting range of the stepwise adjustable fixing means is thereby at least 200 mm. With this solution one or more of the above mentioned objects are achieved. Particularly, the counterpart member position of each counterpart arrangement is adjustable such that simple, accurate, swift and unlaborious installation is made possible. This is made possible by long range of adjustability that consists of the combination of stepwise and stepless adjustability.

[0009] Preferable further details are introduced in the description as well as in the dependent claims, which further details can be combined with the elevator individually or in any combination.

[0010] The elevator is preferably such that it controls movement of the car in response to signals from user interfaces located at landings and/or inside the car so as to serve persons on the landings and/or inside the elevator car. Preferably, the car has an interior space suitable for receiving a passenger or passengers, and the car can be provided with a door for forming a closed interior space.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In the following, the present invention will be described in more detail by way of example and with reference to the attached drawings, in which

Figure 1 illustrates an elevator according to an embodiment.

Figure 2 illustrates details of the elevator of Figure 1.

Figure 3 illustrates three dimensionally preferred details of the counterpart arrangement of the elevator of Figure 1.

Figure 4 illustrates a front view of parts of Figure 3 (guide rail not showed).

Figures 5 illustrates the mounting base of the counterpart arrangement in its uppermost position relative to the supporting arm.

Figures 6 illustrates the mounting base of the counterpart arrangement in its lowermost position relative to the supporting arm.

Figures 7 illustrates the counterpart member of the counterpart arrangement in its uppermost position relative to the mounting base.

Figures 8 illustrates the counterpart member of the counterpart arrangement in its lowermost position relative to the mounting base.

Figure 9 illustrates partially an exploded view of structures of the supporting arm. Figure 10 illustrates a cross sectional view A-A of Figure 4.

Figure 11 illustrates a cross sectional view B-B of Figure 4.

DETAILED DESCRIPTION

[0012] Figure 1 illustrates an embodiment of an elevator according to a preferred embodiment. The elevator comprises a hoistway 1, an elevator car 2 vertically movable in the hoistway 1, as well as one or more vertically oriented guide rails 4 for guiding the elevator car 2. The elevator further comprises an counterweight 3 vertically movable in the hoistway 1, as well as one or more vertically oriented guide rails 5 for guiding the counterweight 3. For the sake of clarity, only one guide rail 4, 5 has been illustrated for each of the car 2 and the counterweight 3 in Figure 1. However, it is preferable that the elevator comprises two of said guide rails 4, 5 for each of the car 2 and the counterweight 3. The car 2 and the counterweight 3 are interconnected by a suspension roping R passing around one or more rope wheels mounted 6 in proximity of the upper end of the hoistway 1.

[0013] The elevator comprises vertically spaced apart landings L1-L3 where the car 2 can be stopped so that the passengers can enter or exit it. The car 2 has a car door D through which the passengers can pass. The landings L1-L3 are preferably provided with landing doors d as illustrated.

[0014] The elevator comprises a car position detection arrangement 7,10. The car position detection arrangement comprises a detector arrangement 7 mounted on the elevator car 2, and a plurality of vertically spaced apart counterpart arrangements 10 for said car position detector arrangement 7, which counterpart arrangements 10 are mounted on a guide rail 4 inside the hoistway 1 beside different landings L1-L3.

[0015] The principle and cooperation of the detector arrangement 7 and the counterpart arrangement 10 are illustrated in Figure 2. The detector arrangement 7 comprises at least a first detector 8 having a first detection range 9, and each counterpart arrangement 10 comprises a first counterpart member 11 for said first detector 8 that is mounted on the car 2. Said first detector 8 is arranged to detect presence of the first counterpart member 11 within the first detection range 9 thereof. The detector arrangement 7 being mounted on the car, the detectors 8 thereof travel along with the car 2. Each said first counterpart member 11 is positioned to be within the vertical projection of the detection range 9, and thereby in the path thereof. Each first counterpart member 11 is arranged to enter the first detection range 9 when the car 2 is moved such that the first counterpart member 11 in question and the first detection range 9 are vertically level with each other.

[0016] The counterpart arrangement 10 has been illustrated in Figure 2 schematically and in further details in Figure 3.

[0017] Each said counterpart arrangement 10 comprises a horizontally oriented elongated supporting arm 12, which elongated supporting arm 12 comprises a first end 13 mounted on a guide rail 4 and a second end 14, and a mounting base 15 for one or more counterpart members 11,21, which mounting base 15 is mounted on the second end 14 of the elongated supporting arm 12; and a first counterpart member 11 mounted on the mounting base 15. Said guide rail on which the counterpart arrangements 10 have been mounted is preferably the guide rail 4 for guiding the elevator car 2, whereby the counterpart members 11,21 mounted by it will be simply close to the car 2 and the detector arrangement 7 mounted thereon.

[0018] The horizontally oriented elongated supporting arm 12 is preferably furthermore oriented parallel with a wall of the car 2. Thus, when the car 2 is level with it, close positioning, and thereby positioning for making the detector and the counterpart thereof to meet, is achieved simply without collision risks or need for the detectors to protrude far outside the vertical projection of the car 2.

[0019] The counterpart member position of each counterpart arrangement 10 is adjustable such that simple, accurate, swift and unlaborious installation is made possible. This is made possible by long range of adjustability that consists of stepwise and stepless adjustment connections that are in series as will be described hereinafter.

[0020] Said mounting base 15 is mounted on the elongated supporting arm 12 with steplessly adjustable fixing means 16a, 16b as illustrated in Figures 5 and 6. The position of the mounting base 15 relative to the elongated supporting arm 12 is steplessly adjustable in vertical direction v between a topmost position and a lowermost position that are at least 50 mm apart in vertical direction v. The vertical adjusting range of the steplessly adjustable fixing means 16a, 16b is thereby at least 50 mm. Figure 5 illustrates the mounting base 15 in its topmost position and a Figure 6 illustrates the mounting base 15 in its lowermost position. The mounting base 15 is movable steplessly between these positions.

[0021] Said steplessly adjustable fixing means 16a,16b comprise a hole 16a provided on the mounting base 15, which hole is elongated in vertical direction v, and a tightening bolt 16b extending through said elongated hole 16a. The tightening bolt 16b is fixed on said elongated supporting arm 12 stationary in vertical direction v. For this purpose the supporting arm can comprise a threaded hole wherein the tightening bolt 16b is screwable, or alternatively there can be round hole in the supporting arm 12 through which the tightening bolt extends and a nut on the back side of the supporting arm 12. The hole 16a provided on the mounting base 15 is preferably at least 50 mm long in vertical direction v whereby this long adjustability is provided.

[0022] The mounting base 15 comprises a first support section 15a against which a first counterpart member 11 can be fixed. In the presented case, there is also a second support section 15b against which a second counterpart member 21 can be fixed. Hereby, in this example two counterpart members 11,21 can be fixed on the mounting base 15 as showed in Figures 3, 4, 7 and 8. Each said support section 15a,15b is preferably a profile flange having a support face facing in the longitudinal direction d of the supporting arm 12. Thus, a plate-shaped counterpart member 11,21 can be fixed by each said supportsection 15a,15b such thatthe plane thereof is vertical and orthogonal to the longitudinal direction d of the supporting arm 12, which is advantageous for the relative positioning of the counterpart member 11,21 and the detector 8,18, as well as their interaction.

[0023] Said first counterpart member 11 is mounted on the mounting base 15 with stepwise adjustable fixing means 17a, 17b, 17c, as illustrated in Figures 7 and 8. The position of the first counterpart member 11 relative to the mounting base 15 is stepwise adjustable in vertical direction v between a topmost position and lowermost position that are at least 200 mm apart in vertical direction v. The vertical adjusting range of the stepwise adjustable fixing means 17 is thereby at least said 200 mm. The overall adjusting range of the second counterpart member 21 then becomes at least 250 mm that is constituted by stepwise and stepless adjustment. This will be enough to provide adjustability exceeding the need caused by fixing brackets and fishplates utilized for mounting guide rails in most common elevators.

[0024] Figure 7 illustrates the first counterpart member 11 in its topmost position and a Figure 8 illustrates the first counterpart member 11 in its lowermost position. The first counterpart member 11 is movable stepwise between these positions relative to the mounting base 15. In the presented case, between these extreme positions relative to the mounting base 15 the first counterpart member 11 is also positionable in intermediate positions relative to the mounting base 15 due to the great amount of holes 17a,17b present in the preferred implementation illustrated in Figures 7 and 8. The implementation is explained in further details in the following.

[0025] Said stepwise adjustable fixing means 17a, 17b,17c comprise plurality of fixing holes 17a provided on said mounting base 15 that are spaced apart in vertical direction v, and plurality of holes 17b provided on said first counterpart member 11 that are spaced apart in vertical direction v, the holes 17a of the mounting base 15 and the holes 17b of the first counterpart member 11 being positioned relative to each other such (e.g. at regular intervals) that said mounting base 15 and said first counterpart member 11 are mountable against each other in plurality of vertical positions such that the holes 17b of said first counterpart member 11 and the holes 17a of said mounting base 15 coincide, and said stepwise adjustable fixing means 17a, 17b,17c further comprise one or more fixing bolts 17c extending through coinciding holes 17a,17b of said first counterpart member 11 said mounting base 15. The holes 17a of the mounting base 15 and the holes 17b of the counterpart member 11 are preferably short in vertical direction, such as less than 15 mm in vertical direction as illustrated or round, as they are not intended to provide stepless adjustability.

[0026] The aforementioned stepwise adjustability enables prepositioning of the mounting base 15 and the counterpart member 11 such that the position of the counterpart member 11 is roughly as desired. The prepositioning can be performed when mounting the individual counterpart arrangement 10 on the guide rail 4. The finetuning is not necessary, and possibly not even possible at this stage, whereby it is preferably done later. The stepless adjustment allows the later finetuning of the counterpart member 11 position such that the specific relative position between it and the detector(s) mounted on the car 2 can be obtained with high accuracy while avoiding with high degree the need to change the position of the complete counterpart arrangement 10. The process can be, for instance, such that the counterpart arrangements 10 are first all distributed and mounted at roughly correct vertical positions in the hoistway 1, even already before installation of the car 2. At a later stage in the installation process of the elevator, they all are finetuned to the exactly correct position by driving the car 2 at each landing and while at the landing adjusting the first counterpart member 11 to be level with the detection range 9 of the first detector 8. The desired exact position of each first counterpart member 11 is within the adjustment tolerance of the stepwise adjustment, due to the rough adjustment carried out earlier. Thus, the final exact position of each first counterpart member 11 can be adjusted by stopping at each landing and with one drive of the car 2 working from the roof of the car 2. The process thus obtained is very swift and simple. The process is to be performed for each pair of detector and counterpart member 8,18;11,21 in this manner, when there are plurality of counterpart members 11,21 comprised in each counterpart arrangement 10. The long range of adjustment on the other hand allows positioning of the counterpart arrangement 10 vertically apart from the level of fixing plates (fish plates) of the guide rail and/or from the level of guide rail brackets used for fixing the guide rail immovably on a wall of the hoistway. The range specified provides adjustability that is adequate to allow free positioning with most known brackets and fishplates. If the fish plate or a bracket happens to be positioned at a troublesome level, owing to the long range of adjustment, the counterpart arrangement 10 can be positioned above it or below it, and adjusted such that it comes to be positioned optimally relative to the landing and car detectors.

[0027] It is preferable, although not necessary, that the detector arrangement 7, which is mounted on the elevator car 2, further comprises a second detector 18 having a second detection range 19, as illustrated in Figure 2. Then, each said counterpart arrangement 10 further comprises a second counterpart member 21 for said second detector 18, as illustrated in Figures 7 and 8. Then, correspondingly as already explained with the first counterpart member 11, the second counterpart member 21 is positioned to be within the vertical projection of the second detection range 19 of the second detector 18 and said second detector 18 is arranged to detect presence of the counterpart member 21 within the second detection range 19, and each said counterpart arrangement 10 further comprises a second counterpart member 21 mounted on the mounting base 15. Thus, a dual system is formed whereby two parallel position detections of the car are provided. These can be used for different purposes and their spatial features optimized individually, while at the same time utilizing common mounting components so that a very compact, yet simply variable overall arrangement can be provided. For example, the vertical length of each counterpart member 11, 21 can be optimized so thatthe level where detection by the relevant detector is realized, becomes as desired. One of the counterpart members 11, 21 can be utilized for detecting whether the car 2 is within a larger vertical zone e.g. for being used to indicate when the car 2 has reached a certain point during its arrival a landing so that the door(s) d,D leading to the closest landing can be operated accordingly. The other one can be utilized for detecting whether the car 2 is within a short vertical zone where is should not exit while parked at a landing. Exit from the short vertical zone can then be used for triggering releveling function. These are, however, only preferred examples of the functions where the elevator can utilize the detection^], as there are various alternative functions where the elevator could utilize information obtained by this kind of detection(s).

[0028] As illustrated in Figures 7 and 8, said second counterpart member 21 is mounted on the mounting base 15 correspondingly as already explained with the first counterpart member 11, with stepwise adjustable fixing means 27a, 27b, 27c, the position of the second counterpart member 21 relative to the mounting base 15 being stepwise adjustable in vertical direction between a topmost position and lowermost position that are at least 200 mm apart in vertical direction, the vertical adjusting range of the stepwise adjustable fixing means 27a, 27b, 27c is thereby at least said 200 mm. The overall adjusting range of the second counterpart member 21 then becomes at least 250 mm that is constituted by stepwise and stepless adjustment. This will be enough to provide adjustability exceeding the need caused by fixing brackets and fishplates utilized for mounting guide rails in most common elevators. Figure 7 illustrates the second counterpart member 21 in its topmost position and a Figure 8 illustrates the second counterpart member 21 in its lowermost position.

[0029] Correspondingly as already explained with the stepwise adjustable fixing means of the first counterpart member 11, said stepwise adjustable fixing means 27a, 2 7b,2 7c of the second counterpart member 21 comprise plurality of fixing holes 27a provided on said mounting base 15 that are spaced apart in vertical direction v, and plurality of holes 27b provided on said second counterpart member 21 that are spaced apart in vertical direction v, the holes 27a of the mounting base 15 and the holes 27b of the second counterpart member 21 being positioned relative to each other such (e.g. at regular intervals) that said mounting base 15 and said second counterpart member 21 are mountable against each other in plurality of vertical positions such that the holes 27b of said second counterpart member 21 and the holes 27a of said mounting base 15 coincide, and said stepwise adjustable fixing means 27a, 27b,27c further comprise one or more fixing bolts 27c extending through coinciding holes 27a,27b of said second counterpart member 21 said mounting base 15.

[0030] The stepwise adjustable fixing means 27a, 27b,27c; 17a, 17b,17c of the first counterpart member 11 and the second counterpart member 21 are adjustable separately from each other. Said first counterpart member 11 and said second counterpart member 21 are mounted on the mounting base 15 with separate stepwise adjustable fixing means 27a, 27b,27c; 17a, 17b,17c, their positions relative to the mounting base 15 being stepwise adjustable in vertical direction v independently of each other. Thus, exact positions of the first and second counterpart member 11,21 can be independently set.

[0031] Generally, each of said detectors 8,18 is a contactless electric detector suitable for detecting presence of a counterpart member within the detection range thereof. Preferably,, each of said detectors 8,18 presented is preferably such that it is configured to produce a magnetic field within the detection range 9,19 thereof, and to detect changes in the magnetic field caused by metal entering or exiting the magnetic field, and each said counterpart member 11,21 presented is a vertically oriented elongated metal member, such as an elongated metal plate. Each of said detectors 8,18 presented can be in the form of an oscillator detector 8,18.

[0032] Each said elongated supporting arm 12 is preferably made of plastic. It is also preferable, that the overall length of the elongated supporting arm 12 is simply variable to fit the elevator. Installation of this kind of elevator is hereby swift, and the manufacturing and maintenance costs thereof are reduced because same components can be used with elevators having different elevator layouts. The variability of length of said elongated supporting arm 12 is provided preferably as illustrated in Figure 2. In this embodiment, the elongated supporting arm 12 comprises an elongated arm section 12a made of plastic and forming the first end 13 of the elongated supporting arm 12 that is mounted on a guide rail 4, and an end section 12b made of plastic forming the second end 14; and a connector section 12c made of plastic, positioned between the and the elongated arm section 12a and the end section 12b and connecting these rigidly to each other, wherein said connector section 12c is a tube profile part having a first and second open ends, one end pointing in longitudinal direction d of the supporting arm 12 towards the elongated arm section 12a, and the other end pointing in longitudinal direction d of the supporting arm 12 towards the end section 12b, and an end of the elongated arm section 12a has been inserted into the first open end of the connector section 12c, and an end of the end section 12b is inserted into the second open end of the connector section 12c. The connector section 12c can be fixed by screws to the elongated arm section 12a and/or the end section 12b so as to facilitate firmness of the connection, for instance.

[0033] The connector section 12c being a tube profile part having a first open end and second open end provides that it can be manufactured to be of any desired length simply by first forming a tube profile and cutting a desired length from it. By choice of length of the connector section 12c, i.e. the length of the tube profile part, the distance between the elongated arm section 12a and the end section 12b can be simply set to be as desired without modifying the elongated arm section 12a or the end section 12b, which are more complicated plastic components, and require manufacturing with a specific mold in an injection molding process. Variation of a tube profile part, on the other hand, does not require having several different molds, because this kind of part can be made by cutting from a longer piece, even on the installation site. The resulting overall structure of the counterpart arrangement is extremely well adjustable in all important directions whereby the elevator becomes very simple, accurate, swift and unlaborious to install.

[0034] Figures 9 to 11 illustrate details of the elongated arm section 12a, the end section 12b and the connector section 12c. Figure 9 illustrates an exploded view, Figure 10 illustrates a cross sectional view A-A of Figure 4 and Figure 11 illustrates a cross sectional view B-B of Figure 4.

[0035] Said connector section 12c is a tube profile part having an inside space of rectangular cross section , and the end of the elongated arm section 12a inserted into the first open end of the connector section 12c, and the end of the end section 12b inserted into the second open end of the connector section 12c are both rectangular.

[0036] In Figure 1, the suspension ratio of the elevator is 1:1. However, this is only one exemplary way to suspend the car 2 and counterweight 3. For example, the suspension ratio could alternatively be 2:1 where the car and the counterweight are each supported by the rope 1 via an additional rope wheel mounted on the car and the counterweight, respectively. Of course, the invention can be used also with any other kind of suspension ratio.

[0037] The guide rail 4 on which the counterpart arrangements 10 are mounted has a T-shaped cross-section, as illustrated in Figures. Then, it comprises a back section having a back face against which the elongated supporting arm 12 can be mounted to lean, and a guide section along which a guide member can travel. The guide member is mounted on the elevator unit being guided by the guide rail, i.e. the car or counterweight. The guide member may be a set of rollers or sliders, for instance. The guide rail being T-shaped, the guide section and the back section are substantially plate shaped and, the guide section protrudes from the center area of the back section orthogonally towards the front side of the guide rail 4. Each said guide rail 4,5 preferably comprises plurality of guide rail sections placed on top of each other end-to-end. The ends are preferably connected with a fixing plate, so-called fish plate, extending against the back face over the seam formed between the ends of the consecutive guide rail sections.

[0038] It is to be understood that the above description and the accompanying Figures are only intended to teach the best way known to the inventors to make and use the invention. It will be apparent to a person skilled in the art that the inventive concept can be implemented in various ways. The above-described embodiments of the invention may thus be modified or varied, without departing from the invention, as appreciated by those skilled in the art in light of the above teachings. It is therefore to be understood that the invention and its embodiments are not limited to the examples described above but may vary within the scope of the claims.

Claims (14)

Elevator according to Claim 1, characterized in that said infinitely adjustable fastening means (16a, 16b} comprises a hole (16a} provided in the mounting base (15), which hole (16a} is elongated vertically (v}) and a clamping bolt (16b} extends through said elongated hole (16a} and the clamping bolt (16b} is fixed to said elongated support arm (12) in a vertical (v} position. Elevator according to claim 2, characterized in that said hole (16a) arranged in the mounting base (15) is at least 50 mm long in the vertical direction (v). Elevator according to Claim 1, characterized in that said stepwise adjustable fastening means (17a, 17b, 17c} of said first counterpart element (11} comprises a plurality of fastening holes (17a} arranged in said mounting base (15) and spaced vertically (v}), and a plurality of holes (17b} arranged vertically {v} spaced on said first counterpart (11}) and a plurality of holes (17a} and 17b) of the mounting plate (15}) relative to each other such that said mounting plate ( 15} and said mating member (11} can be mounted against each other in a plurality of vertical positions such that the holes (17a) of the mounting base (15) and the holes (17b} of the mating member (11}) are aligned and said stepwise adjustable mounting means (17a, 17b, 17c} comprising one or more mounting bolts (17c} extending from the first mating member (11} and mounting base (1) 5} through the corresponding holes (17a, 17b}. Elevator according to Claim 1, characterized in that said first sensor (8} is adapted to produce a magnetic field within its detection range (9) and to detect changes in the magnetic field caused by metal entering or exiting the magnetic field and the first counter member (11) is a vertical elongated metal member . Elevator according to Claim 1, characterized in that said guide (4) on which the counter part arrangements (10} are mounted) has a T-shaped cross-section. Elevator according to claim 1, characterized in that the mounting base (15} comprises a first support section (15a} against which the first counter part (11) is fixed. Elevator according to Claim 1, characterized in that the identification arrangement (7} mounted on the elevator car (2} further comprises a second detector (18} having a second detecting range (19} and each of said counterpart sub arrangement (10} further comprises a second a mating element (21} for said second sensor (18}, which second mating element (21} is mounted on a mounting platform (15} and disposed within a vertical projection of the second sensor (18}) and said second sensor (18} is arranged to identify the mating element ( 21} presence within a second recognition range (19}, and each of said counterpart sub arrangement (10} further comprises a second counter element (21}). Elevator according to claim 8, characterized in that the mounting base (15} comprises a first support section (15a} against which the first counterpart (11}) is fixed and a second support section (15b} against which the second counterpart (21}) is fixed. Elevator according to claim 8, characterized in that said second mating member (21} is mounted on the mounting base (15} with stepwise adjustable fastening means (27a, 27b, 27c}) and the vertical position of the second mating member (21} relative to the mounting base (15) (v} between the upper position and the lowest position at least 200 mm apart in a vertical position (v}. Elevator according to claim 10, characterized in that said stepwise adjustable fastening means (27a, 27b, 27c} of said second counterpart element (21} comprises a plurality of fastening holes [27a] arranged in said mounting base (15} and spaced vertically (v), and a plurality of holes (27b) disposed vertically (v) in said second mating member (21) and the holes (27a) of the mounting base (15) and the holes (27b) of the second mating member (21) are positioned relative to each other; 15) and said second mating member (21) can be mounted against each other in a plurality of vertical positions with the holes (27b) of the second mating member (21) and the holes (27a) of the mounting base (15), and said stepwise adjustable fastening means (27a, 27b, 27c) ) further comprising one or more fastening bolts (27c) extending in line with the second mating member (21) and mounting base (15) through the holes (27a, 27b). Elevator according to claim 10, characterized in that said first mating member (11) and said second mating member (21) are mounted on a mounting platform (15) by separate stepwise adjustable fastening means (27a, 27b, 27c; 17a, 17b, 17c) and the positions relative to the mounting base (15) are step-adjustable vertically (v) independently of one another. Elevator according to claim 1, characterized in that each of said horizontal elongated support arms (12) is made of plastic. Elevator according to claim 1, characterized in that each of said horizontal elongated support arms (12) comprises an elongated shaft portion (12a) made of plastic and forming a first end (13) mounted on a guide (4); and an end portion (12b) made of plastic and forming a second end (14); a connecting portion (12c) made of plastic disposed between and extending rigidly between the elongate shaft portion (12a) and the end portion (12b), wherein said connecting portion (12c) is a tubular profile portion having a first open end and a second open end, and a first open end the head pointing towards the elongate shaft portion (12a) and the other open end pointing towards the end portion (12b), and the end of the elongated shaft portion (12a) is positioned at the first open end of the connecting portion (12c) and the end of the end portion (12b) at the open end. Elevator according to claim 14, characterized in that said connecting portion (12c) is a tubular profile portion having an interior having a rectangular cross-section and an end of an elongated shaft portion (12a) disposed at the first open end of the connecting portion (12c) and the end disposed at the other open end of the joint portion (12c) is each rectangular.