This application claims priority to European Patent Application No. 10191336.6, filed Nov. 16, 2010, which is incorporated herein by reference.
The disclosure relates to a device for generating shaft data in an elevator installation.
Magnets arranged in an elevator shaft serve, together with magnet switches arranged at an elevator cage, for generating shaft information. When the elevator cage moves in the elevator shaft the magnet switches the magnet switches, which are usually constructed as bistable magnet switches, from one switching state to another switching state. An instantaneous position of the elevator cage in the elevator shaft is thereby determined for an elevator control on the basis of the position of the relevant magnet. The magnets, which, for example, are arranged in the region of a story, are usually arranged at fastening means. In that case the magnets are displaceable along the guide rails.
EP 0 982 257 A2 discloses a shaft magnet device for generating shaft data in an elevator installation. A mount comprising a foot part, back part and front part is designed for reception of a magnet. The foot part and the front part of the mount are pressed against the guide rail by a spring characteristic of the back part so that the mount can be fastened to the guide rail. However, in some cases this mount has to be used for exactly one specific thickness of guide rail. Thus, this mount generally cannot be used for guide rails of different design. Moreover, a retaining force of the mount is limited.
At least some of the disclosed embodiments provide a device for generating shaft data in an elevator installation, which can be used at guide rails with different thicknesses. In addition, at least some embodiments are simple to produce and allow simple installation. Moreover, at least some embodiments provide a secure fixing with a sufficiently high holding force and are displaceable at a guide rail in simple mode and manner.
Particular embodiments of a device for generating shaft data in an elevator installation comprise an information transmitter and a mount, the mount having a first limb, a back and a second limb, wherein the first limb has a first section and a second section and wherein the second limb has elements for reception of the information transmitter. The second section of the first limb in a use state comes to lie substantially between the first section of the first limb and the second limb.
In an exemplifying embodiment the first limb has a bending section which lies between the first section and the second section so that the second section is connected with the first section to be bendable relative thereto. This can mean that the mount can be of integral construction. The bending section can accordingly be constructed from the same material as the first limb, the back and the second limb. Production can thereby be simplified and production costs can be kept low. In an alternative form of embodiment a joint is arranged between the first section of the first limb and the second section of the first limb.
In an exemplifying embodiment the information transmitter comprises a magnet. Magnets have the advantage that they are economic and form a robust switch together with a magnet switch. In addition, a magnet can increase the retention force of the device for generation of shaft data at a guide rail, because the magnet additionally adheres to the guide rail. In an alternative form of embodiment other information transmitters such as, for example, RFID chips can be used.
In a further exemplifying embodiment the device further comprises a spring which is arranged between the first section and the second section and the second section is thereby acted on by a force which urges the second section against the second limb. Through use of such a spring the retention force of the device at a guide rail is further increased.
In a further exemplifying embodiment the first section and the second section can have spring retaining elements which in a use situation of the device keep the spring in a predefined position in relation to the first section and the second section. Insertion of the spring into the mount is thereby simplified and the spring can be prevented from leaving its predefined position in the mount. In another exemplifying embodiment a spring constant of the spring lies in a range between 2 N/mm and 30 N/mm.
In a further exemplifying embodiment the second limb has a first arm and a second arm, wherein the first arm and the second arm are arranged substantially parallel to one another so that the information transmitter can be clamped in place between the first arm and the second arm.
In a further exemplifying embodiment the second section of the first limb can be pivoted through between the first arm and the second arm of the second limb. This can mean that dimensioning of the second section of the first limb is not confined to a spacing between the first and the second limbs but is limited substantially to a dimension of the first section of the first limb.
In a further exemplifying embodiment the second section comprises laterally arranged detent elements which prevent the second section from pivoting back out of a position substantially between the first section and the second limb into a position substantially in a prolongation of the first section. This can mean that the second section can, before mounting on a guide rail, already be brought into its use position between the first section and the second limb without pivoting back. The mount can thereby be readied in advance, which can allow simpler mounting.
In addition, thanks to these detent elements the spring can already be premounted between the first section and the second section of the first limb before the mount is mounted on a guide rail.
In a further exemplifying embodiment the mount is formed as an injection-molded part and/or consists of at least partly of polypropylene. This can mean that the mount can be produced economically and in simple mode and manner.
In a further exemplifying embodiment the device can be clamped against an object with the thickness between 2 millimeters and 10 millimeters.
In a further exemplifying embodiment the device comprises a third limb which has elements for reception of a second information transmitter. Through a second information transmitter, which is possibly arranged in a vertical path different from that of the first information transmitter, it is possible to define further functions. For example, the second information transmitter can be used as a signal for door opening.
In a further exemplifying embodiment the third limb and the second limb are arranged at substantially the same height at the back so that a first information transmitter arranged in the second limb and a second information transmitter arranged in the third limb are disposed substantially adjacent to one another, wherein the back lies substantially on a plane between the first information transmitter and the second information transmitter. It is thereby achieved that the first information transmitter and the second information transmitter in a use state are arranged in different vertical paths.
In at least some embodiments, the device is arranged at a mounting limb of a guide rail. In an exemplifying embodiment at least one device is arranged per story.
The disclosure is explained in more detail in the following on the basis of exemplifying embodiments illustrated in figures, in which:
A mount 2 is illustrated from different viewing angles in
The back 5 is connected not only with the first limb 3, but also with the second limb 4. On a side remote from the limbs 3, 4 the back 5 has longitudinally directed bracings. These bracings increase the stability of the back 5. By virtue of the increased stability the back 5 is in a position of accepting increased forces of the limbs 3, 4 without bending.
The first limb 3 has a first section 3.1 and a second section 3.2. Arranged between the first section 3.1 and the second section 3.2 is a bending section 3.3. The first section 3.1 can be, like the back 5, formed with bracings to be torsionally stiff. The second section 3.2 can be similarly formed to be torsionally stiff by virtue of its three-dimensional structure. The bending section 3.3 is constructed as a flat connecting member between the first section 3.1 and the second section 3.2. The second section 3.2 is thereby bendable upwardly and downwardly, but not laterally, about the bending section 3.3. In
The first limb 3 has spring retaining elements 9.1, 9.2 for the arrangement of a spring. In that case, a first spring retaining element 9.1 is arranged at the first section 3.1 and a second spring retaining element 9.2 is arranged at the second section 3.2.
In a use state the first spring retaining element 9.1 is arranged substantially opposite the second spring retaining element 9.2 so that a spring can be fixed by the spring retaining elements 9.1, 9.2.
The second limb 4 comprises a first arm 4.1 and a second arm 4.2. The first arm 4.1 and the second arm 4.2 in that case are arranged substantially parallel to one another. The first arm 4.1 and the second arm 4.2 are both connected with the back 5. An information transmitter is receivable between the first arm 4.1 and the second arm 4.2. The first arm 4.1 and the second arm 4.2 have inward bulges so that a circular information transmitter can be received by the arms 4.1, 4.2.
The first limb 3 and the second limb 4 are so dimensioned that the second section 3.2 of the first limb 3 is pivotable through between the arms 4.1, 4.2 of the second limb. This is apparent particularly from
The mount 2 is formed as an injection-molded part. It consists at least partly of polypropylene.
A mount 2 with an inserted spring 7 is illustrated in
A mount 2 with a third limb 8 is illustrated in
A device for generating shaft data in an elevator installation is illustrated in
A device for generating shaft data is again arranged at a guide rail 10 in
Having illustrated and described the principles of the disclosed technologies, it will be apparent to those skilled in the art that the disclosed embodiments can be modified in arrangement and detail without departing from such principles. In view of the many possible embodiments to which the principles of the disclosed technologies can be applied, it should be recognized that the illustrated embodiments are only examples of the technologies and should not be taken as limiting the scope of the invention. Rather, the scope of the invention is defined by the following claims and their equivalents. I therefore claim as my invention all that comes within the scope and spirit of these claims.
Number | Date | Country | Kind |
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10191336.6 | Nov 2010 | EP | regional |