Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B7/00—Other common features of elevators
  • B66B7/02—Guideways; Guides
  • B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
  • B66B7/047—Shoes, sliders

Definitions

• the invention relates to a sliding guide shoe for a lift for passenger or goods transport according to the preamble of claim 1. Furthermore, the invention relates to a method for maintenance or revision of an elevator system with such Gleit Operationssepticn.
• Sliding guide shoes are often used to guide elevator cars. Elevator systems in buildings have a generally vertical elevator shaft, in which a respective guide rail is arranged on mutually opposite shaft walls. Sliding guide shoes arranged on the elevator car have inlays with sliding surfaces which slide with little play along a guide rail. Sliding guide shoes in which the inserts are configured as profiles of U-shaped cross-section are known and commonly used. In contrast to roller guide shoes, the sliding guide shoe basically has no moving parts. Since the deposits wear off over time, used or old sliding inserts must be replaced.
• JP 2006-103896 shows a sliding guide shoe with a sliding insert consisting of two side parts and a bottom part, wherein the two side parts and the bottom part in cross-section define a "U" in the inserted state.
• the slide insert has a profiling on the inside, the tread depth determines whether the worn slide insert needs to be removed, but it is difficult and cumbersome to remove the slide insert, for example because the bottom part is sandwiched between the rubber plates, can hardly be removed separately, so in practice the entire insert together with the sliding insert and rubber plates must be removed from the guide shoe housing.
• the sliding element is a U-profile made of hardwood, which is surrounded by a U-shaped rubber profile. Hardwood profiles of this type are difficult to produce and expensive, and they are no longer sufficient in terms of sliding properties.
• the hardwood profile is not supported by the rubber profile but is secured at the top and bottom only by plates bolted to the guide shoe housing.
• the two-part insert has a sliding element and a carrier element, wherein the sliding element is releasably connected to the carrier element.
• the carrier element has sliding surfaces on which the guide rail contact with a small amount of play.
• the support member may have by appropriate choice of materials, structural design or shaping damping properties, whereby a low-vibration ride of the cabin can be ensured.
• the carrier element itself has at least in the normal case no sliding function.
• the sliding element is connected to the support member or connectable that it can be removed laterally from the Gleitmentsschuh in the longitudinal direction or inserted into this, the sliding element can be exchanged and replaced as wear part even after the first commissioning of the elevator system and without elaborate arrangements , In particular, it is possible to remove the sliding element while the remaining sliding guide shoe remains on the longitudinally extending guide rail. After removal of the sliding element, the carrier element is still in the inserted position in the guide shoe housing.
• Carrier element and optionally also the sliding element is designed at least in the inserted state as a cross-sectionally U-shaped profiles, wherein the profile longitudinal direction corresponds to the predetermined longitudinal direction by the guide rail.
• the U-profile may have two leg walls and a web wall connecting them.
• the carrier element and / or the sliding element can each be made of flat blanks, wherein the leg walls connect, for example via film hinges to the web wall. To form the profile shape of the blank can be erected from a flat rest position.
• the sliding surfaces could also be formed by separate components.
• the outer component of the insert i.
• the support member may be made of a comparatively elastic plastic such as elastomers based on PU, rubbery materials such as synthetic rubber (e.g., EPDM or NBR) or natural rubber (NR). With the support element noise and vibration can be damped.
• the sliding element may consist of a comparatively stiff plastic material. Good sliding properties can be achieved if the sliding element is made for example of a material such as PTFE or UHMW-PE with low coefficients of friction.
• the sliding guide shoe could be designed such that the sliding element can be pushed or pulled out from both sides in the longitudinal direction into the carrier element. Particular advantages, however, arise when the slider is insertable or retractable only from one longitudinal side into the carrier element. With this order can be created a simple, consisting of a few individual sliding guide shoe.
• the sliding element is supported with respect to the longitudinal direction on one side in each case by a stop, up to which the sliding element is limited in the carrier element can be inserted.
• the stop may be predetermined by the carrier element, by the guide shoe housing or possibly even by a separate part.
• the support element has at least one up to a shoulder in the longitudinal direction extending recess for receiving the sliding element.
• the respective sliding element can be inserted and inserted from the one longitudinal side.
• the shoulder thereby forms a stop for the sliding element, up to which the sliding element can be pushed into the carrier element.
• the longitudinally extending, non-continuous recess extends from an open longitudinal side to said shoulder, wherein the shoulder can be created for example by a step in the support element.
• the support member may be fixed or fixable by means of fastening means positively or non-positively in the guide shoe housing. It would also be conceivable to fix the carrier element using adhesive in the guide shoe housing.
• the sliding guide shoe has opposite sliding surfaces and a sliding surface extending transversely thereto, which are slidably movable along guide surfaces of the guide rail with preferably little play, it may be advantageous for a sliding element to predetermine the three sliding surfaces, the sliding element preferably being monolithic and monolithic Component is designed.
• the sliding guide shoe may comprise three sliding elements, each sliding element each forming a sliding surface.
• This arrangement has on the one hand manufacturing advantages, since the simple-shaped sliding elements can be easily and inexpensively manufactured.
• the sliding elements made of suitable plastics can be produced for example by extrusion.
• the sliding elements could also be designed as injection-molded parts made of plastic. Of course, other manufacturing processes would be conceivable.
• this arrangement leaves one use-dependent replacement of wearing parts too. Any new sliding elements must therefore not be replaced in every maintenance interval.
• the arrangement with a plurality of sliding elements is further advantageous in that it is particularly suitable for oil-free operation.
• the sliding guide shoe would comprise only two sliding elements.
• the individual sliding elements can be designed as a plate-shaped body. Such sliding elements can be produced in a particularly simple and cost-effective manner.
• three fastening grooves are provided in the carrier element for preferably (in relation to the insertion direction or longitudinal direction) positive reception of a respective sliding element.
• the fastening groove undercuts and the sliding element to the undercuts have complementary wedge-shaped edge portions, resulting in a dovetail connection between the sliding element and the carrier element.
• the combination of the three fastening grooves forming the above-mentioned recesses with the sliding elements which can be accommodated therein could also be advantageous for sliding guide shoes having other configurations of the recesses. For example, it is not absolutely necessary for certain applications that sliding elements are supported on a shoulder formed by the carrier element. Such Gleit Eventsschuh could thus have longitudinally extending, continuous recesses (without shoulder).
• a retaining element can be provided which is fastened or fastened in the region of a longitudinal side on the guide shoe housing.
• the gliding Ment can thus be included between the support member and the aforementioned stop, whereby the sliding member is securely held in the guide shoe housing.
• the holding element has a surface on the guide shoe housing resting or alslegbaren mounting wall portion and a spaced from the guide shoe housing retaining wall portion for holding the insert.
• the retaining wall portion and the mounting wall portion can lie on plane-parallel planes.
• the holding element may be a bent part made of metal.
• the holding element can thus be made from a single sheet metal blank and formed by Blechumformmaschinen.
• the sliding guide shoe may further comprise a preferably separate protective element for protecting the sliding surfaces against contamination from the outside.
• the protective element can be positioned on an inner side facing the at least one sliding element on the holding element or, for example, attached by gluing. In a fully assembled position, the protective element bears against the sliding element or on the sliding elements and protects itself sealingly therefrom.
• the protective element is preferably made of a non-metallic material. It may be made of plastic, and preferably of a plastic having elastic properties (e.g., elastomers). For example, PUR, EPDM, NBR or NR are particularly suitable. Furthermore, it is conceivable that the protective element was made of a felt or a non-woven.
• the sealing effect for protecting the sliding surfaces can be further improved if the protective element is designed flat and has a first surface portion and a subsequent inside, a smaller thickness than the first surface portion having sealing portion which defines a contact surface to the sliding element. Between the surface portion and sealing portion may be a step. An outer edge of one end of the slider may be fitted in the step.
• the sealing section can form a type of sealing lip inwards which prevents the guide rail acted upon.
• the protective element and the retaining element can each have an incision at least partially enclosing the guide rail in the operating position.
• the protective effect can be increased if the incision of the protective element is tapered relative to that of the retaining element.
• the sliding element used projects beyond the carrier element and / or via the guide shoe housing.
• the part of the sliding element projecting beyond the carrier element and / or the guide shoe housing can be easily grasped and pulled out.
• the supernatant should preferably be at least 5 mm and more preferably about 10 mm.
• the support member may be configured such that it has an upper end which is offset in the inserted position against an adjacent housing surface and / or an edge of the sliding member in the region of the longitudinal side inwardly, whereby a recess or an open towards the longitudinal side cavity between Guide shoe housing and sliding element is created.
• the sliding element can be easily grasped via the mentioned cavity and then pulled out.
• the fully inserted carrier element can connect approximately flush or infinitely to the housing surface in the region of the longitudinal side of the guide shoe housing.
• Another aspect of the invention could relate to a cab for an elevator with at least one sliding guide shoe in the manner previously described.
• Another aspect of the invention relates to a method for the revision of an elevator system equipped in particular with the previously described guide shoes.
• the method is characterized in particular by the fact that when renewing an at least one sliding element and a carrier element comprehensive insert for the Gleitmentsschuh the sliding element is replaced.
• the guide shoe remains together with the carrier element on the guide rail.
• the sliding element to be renewed is removed by lateral withdrawal in the longitudinal direction of the guide shoe.
• a new slider is inserted from the same side into the guide shoe used.
• a deposit secured with one or at most two retaining elements must be removed beforehand.
• FIG. 1 shows a simplified representation of an elevator according to the invention with an elevator car guided on guide rails via sliding guide shoes in a top view
• FIG. 2 shows a perspective view of a sliding guide shoe of the elevator according to FIG. 1,
• FIG. 3 shows the sliding guide shoe from FIG. 2 with a detached holding element and protective element
• FIG. 4 shows the sliding guide shoe with disassembled sliding element
• FIG. 5 shows a carrier element for the sliding guide shoe
• FIG. 6 shows an alternative Gleitationssschuh with detached holding element
• FIG. 7 shows a perspective view of a sliding guide shoe according to a further exemplary embodiment
• FIG. 8 shows a variant of the sliding guide shoe according to FIG. 7,
• FIG. 9 shows the sliding guide shoe from FIG. 8 with disassembled sliding elements
• Figure 10 is a plan view of the Gleitmentsschuh.
• Figure 1 shows a generally designated 1 elevator with an elevator car 2, the vertically guided between two guide rails 3 in an elevator shaft, not shown, up and down in the z-direction is movable.
• the linear guide with the guide rail 3 is presently exemplified by a longitudinally extending z extending T-profile.
• At least one guide shoe 4 for guiding the car 2 to the guide rails 3 is arranged on the elevator car 2 on each side.
• elevator cars generally have four (two per side) or more sliding guide shoes.
• the Gleit Resultssschuh has a cross-sectionally U-shaped insert 6, which includes the guide rail 3 and which - like the guide rail - in the longitudinal direction z extends.
• the insert 6 described in more detail below is secured in position by a retaining element designated 9.
• the sliding guide shoe 4 has a channel-like receptacle extending in the longitudinal direction z for the guide rail (not shown here).
• the respective guide surfaces of the guide rail are slidably acted upon in a sliding movement in the z-direction by opposing, approximately plane-parallel sliding surfaces 18 and a transverse thereto extending sliding surface 22 with little play.
• the two sliding surfaces 18 are formed by the inner side facing the guide rail of the designated sliding element 8, which forms the insert 6 together with a carrier element 7.
• the insert 6 is fixed via bearing pins 14, which engage in corresponding recesses 15 of a guide shoe housing 5, in the guide shoe housing 5 of the guide shoe.
• the guide shoe housing 5 embodied in one piece in this case consists of a metallic material (eg steel).
• the outer insert component 7 is made of a material with which noise and vibration can be damped during the cabin ride.
• an elastic plastic e.g., PUR, EPDM, NBR, NR
• the sliding element 8 consists of a comparatively rigid plastic, which is further characterized by a low coefficient of friction (PTFE, UHMW-PE, etc.).
• the sliding guide shoe 4 is characterized in that an oil-free guidance is made possible.
• the cross-sectionally U-shaped sliding element 8 in the assembled state according to FIG. 2 is provided between a shoulder 11 and a lid-like arrangement with a protective element 10 for protecting the sliding surfaces 18 from contamination and a sheath. element 9 included.
• the holding element 9 is designed as a bent part made of metal, which is secured by means of screws (not shown here) on the guide shoe housing 5. Corresponding holes, through which screws are feasible, are designated by 28.
• the retaining element 9 has a fastening section 16 provided with through-holes 28 and a retaining wall section 17 extending plane-parallel to the plane of the fastening section. Furthermore, in the region of the longitudinal side 20 of the guide shoe housing 5, two holes 29 can be seen, which can be designed for fastening the holding element 9 as through holes or threaded holes into which (not shown) screws can be inserted or screwed.
• the protective element 10 is designed to be flat and consists of a soft non-metallic material (eg plastics or felt).
• the protective element 10 has a first surface portion 23 and a subsequent thereto, a smaller thickness having sealing portion 24.
• the sealing portion 24 defines a contact surface with the sliding member (see Fig. 2).
• FIG. 4 shows a residual sliding guide shoe designated 4 ', from which the sliding element has been removed laterally.
• the sliding element 8 is designed as a profile body which defines a U-shape both in the inserted state and outside the guide shoe. But it would also be conceivable to separate the individual walls by means of film hinges. Thus, the slider would be erectable from a flat position by raising the leg walls to a U-profile.
• the carrier element 7 has a recess 12 which extends up to a shoulder 11 and which forms a receiving section for receiving the sliding element. The shoulder forms the stop, to which a sliding element can be inserted.
• FIG. 6 shows a variant of the first exemplary embodiment.
• the sliding guide shoe 4 shown in FIG. 6 is characterized in that the end 30 of the carrier element facing the upper longitudinal side 20 is offset inwards relative to the corresponding housing upper side 20 or surface 21. By this inward displacement creates a depression over which the slider 8 can be easily grasped or detected and then pulled out. Since the upper edge 31 of the fully inserted sliding element 8 ends approximately on the same plane as the surface 21 in the region of the longitudinal side 20, the retaining element 9 can be formed by a simple plate-like component.
• the likewise flat protective element 10 can be made, for example, from a felt blank.
• the sliding guide shoe can also have a plurality of sliding elements.
• each of the three sliding surfaces 18 is a single sliding element 8 ', 8 ".
• the three sliding elements 8 ', 8 "and 8"' in the present case have the same shape and consist for example of UHMW-PE or Teflon.RTM ..
• the sliding elements 8 ', 8 "and 8"' are designed in three complementary configurations Mounting grooves used in the support member 7 and can be removed by pulling in the longitudinal direction z from the guide shoe.
• the Gleitmentsschuh is shown in Figure 8 without holding element and protective element.
• the sliding elements 8 ', 8 ", 8"' are inserted via a dovetail connection in the carrier element 7.
• the support member 7 is shortened with respect to the longitudinal direction, so that in the region of the longitudinal side 20, a cavity is formed, via which the sliding elements can be grasped or grasped and then pulled out in the longitudinal direction of the individual mounting grooves.
• the Gleit Resultssschuh 4 allows an advantageous process for the revision of an elevator system.
• the (not shown here) elevator car is first stopped, whereupon the following steps are performed:
• the sliding elements 8 ', 8 ", 8"' are replaced, wherein during the replacement process, the Gleit Equipmentsschuh together with the support member 7 on the guide rail remains and to be renewed sliding elements 8 ', 8 ", 8"' are removed from the Gleit Equipmentsschuh 4 by lateral pulling in the z direction.
• new sliding elements can be inserted from the longitudinal side 20 in the opposite direction to the arrow z in the Gleit Resultssschuh.
• the carrier element 7 adjoins steplessly the planar housing surface designated by 21. Furthermore, the dovetail configuration for the connection between the sliding elements 8 ', 8 ", 8"' and the carrier element 7 is clearly recognizable in this illustration.
• the carrier element 7 has, as is apparent, three recesses running in the longitudinal direction z, into which the sliding elements can be inserted in each case. In the support member 7 recesses in the form of three mounting grooves 32, 33 are provided for the positive reception of a respective sliding element.
• the sliding elements 8 ', 8 ", 8"' are designed as a plate-shaped body.
• the fastening grooves have in the longitudinal direction z extending undercuts; the gliding Mente have complementary to the undercuts wedge-shaped edge portions.
• the undercuts of the mounting groove 32 are designated 34, the edge portions of the corresponding sliding member are designated 35.
• the present multi-part arrangement and the dovetail configuration differs further from the one-piece embodiments by smaller contact surfaces (or sliding surfaces) opposite or to the guide rail.
• the sliding elements 8 ', 8 ", 8"' of the insert 6 are each received in a form-fitting manner in the fastening grooves 32, 33 of the carrier element 7 in a special manner.
• the sliding element designated 8 " is removed from the fastening groove also designated 32.
• the fastening groove 32 has an undercut 34 extending in the longitudinal direction, the sliding element 8" has accordingly wedge-shaped edge portions 35. With this dovetail connection, the sliding elements are held captive in a simple manner inwardly in the support element. It can further be seen from FIG.

Landscapes

• Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
• Handcart (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (1)

Family

ID=47010611

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (11)

Family Cites Families (16)

• 2012
  • 2012-10-12 EP EP12770499.7A patent/EP2771268A1/de not_active Withdrawn
  • 2012-10-12 WO PCT/EP2012/070286 patent/WO2013060583A1/de active Application Filing
  • 2012-10-12 RU RU2014120984A patent/RU2638336C2/ru not_active IP Right Cessation
  • 2012-10-12 MX MX2014004834A patent/MX346738B/es active IP Right Grant
  • 2012-10-12 IN IN2975CHN2014 patent/IN2014CN02975A/en unknown
  • 2012-10-12 BR BR112014009260A patent/BR112014009260A8/pt active Search and Examination
  • 2012-10-12 US US13/650,443 patent/US9493325B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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