• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    GUIDE RAIL FOR AN ELEVATOR SYSTEM, E, ELEVATOR SYSTEM A guide rail (14) for the elevator system (10) includes a base (20) that can be connected with a wall of an elevator shaft (12) of the elevator system (10) and a core section (24) connected and extending from the base (20). A tip section (26) is located at one end of the web section (24) and is operably connectable to an elevator car (16) of the elevator system (10). The base (20), the core section (24) and the tip section (26) are formed of one or more thicknesses (28) of sheet metal material. An elevator system (10) includes an elevator car (16) located in an elevator shaft (12) and a guide rail (14) that extends along the elevator shaft (12) and is operably connected to the car elevator (16) to guide the elevator car (16) along the elevator shaft (12). The guide rail (14) is configured so that the braking forces applied to the guide rail (14) by a braking mechanism (36) successfully reduce the speed of the elevator car (16) without resulting in failure of the rail guide (14).
    公开号:BR112012029454B1
    申请号:R112012029454-7
    申请日:2010-05-21
    公开日:2020-12-29
    发明作者:Zbigniew Piech；Richard N.Fargo；Jaime A. Rivera
    申请人:Otis Elevator Company；
    IPC主号:
    专利说明:

    KNOWLEDGE OF THE INVENTION
    [0001] The matter described here generally refers to elevator systems. More specifically, the subject described refers to guide rails for elevator cars.
    [0002] Elevator systems typically include an elevator car suspended in an elevator shaft through a number of suspension cables. To guide the elevator car in the elevator shaft, a number of guide rails are arranged in the elevator shaft, for example, from the top to the bottom of the elevator shaft. The elevator car is connected to the guide rails through one or more guide shoes so that the elevator car follows a path defined by the guide rails as it moves through the elevator shaft. Also, in some elevator systems, a braking mechanism connected to the elevator car acts on the guide rails to slow down and / or stop the elevator car in the elevator shaft.
    [0003] The typical guide rail is a T-shaped solid steel rail. Such rail configurations are typically used because of their ability to withstand deformation and deflection during normal lift operations and to withstand loads applied during emergency braking. Typical rails, however, are heavy and bulky, with each typical rail weighing 8 or more pounds per linear foot (119 g / cm) and are typically installed in 20-foot (6.1 m) sections. Installation requires heavy equipment due to the weight of the rails, and is additionally difficult due to the installation restrictions of the sections in the confined space of the elevator shaft. The technique could very well receive a lighter weight more easily installed guide rail which can withstand the braking and operating loads of the elevator system. BRIEF DESCRIPTION OF THE INVENTION
    [0004] According to one aspect of the invention, a guide rail for an elevator system includes a connectable base with an elevator shaft of the elevator system and a web section connected and extending from the base. A tip section is located at one end of the web section and is operably connectable to an elevator car of the elevator system (10). The base, core section and tip section are formed from one or more thicknesses of sheet metal material. The guide rail is configured so that the braking forces applied to the guide rail by a braking mechanism successfully reduce the speed of the elevator car without resulting in failure of the guide rail.
    [0005] According to another aspect of the invention, an elevator system includes an elevator car located in an elevator shaft and a guide rail extending along the elevator shaft and operably connected to the elevator car to guide the car elevator over the elevator shaft. The guide rail includes a base connectable to the elevator shaft, a core section connected and extending from the base, and a tip section located at one end of the core section and operably connected to the elevator car. The base, the core section and the tip section are formed by one or more thicknesses of sheet metal material. The elevator system includes a braking mechanism operably connected to the guide rail and the elevator car, the guide rail configured so that braking forces applied by the braking mechanism to the guide rail successfully reduce the speed of the elevator car without resulting in failure of the guide rail.
    [0006] These and other advantages and features will be apparent from the following description taken in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
    [0007] The matter, which refers to the invention, is particularly highlighted and distinctly claimed in the claims at the completion of the specifications. The foregoing and other functionalities and advantages of the invention are apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. 1 is a schematic view of an embodiment of an elevator system; FIG. 2 is a cross-sectional view of an embodiment of a guide rail for an elevator system; FIG. 3 is a cross-sectional view of a tip section of a guide rail for an elevator system; FIG. 4 is a cross-sectional view of another embodiment of a tip section of a guide rail for an elevator system; FIG. 5 is a cross-sectional view of another embodiment of a guide rail for an elevator system; FIG. 6 is a cross-sectional view of an additional embodiment of a guide rail for an elevator system; FIG. 7 is a cross-sectional view of yet another embodiment of a guide rail for an elevator system; FIG. 8 is a cross-sectional view of yet another embodiment of a guide rail for an elevator system; FIG. 9 is a cross-sectional view of another embodiment of a guide rail for an elevator system; FIG. 10 is a cross-sectional view of yet another embodiment of a guide rail for an elevator system; FIG. 11 is a cross-sectional view of an embodiment of a brake system mechanism for an elevator system; and FIG. 12 is a schematic illustration of a method for forming a guide rail for an elevator system.
    [0008] The detailed description explains the modalities of the invention, together with advantages and features, by way of example with reference to the drawings. DETAILED DESCRIPTION OF THE INVENTION
    [0009] In FIG. 1 an embodiment of an elevator system 10 is shown. The elevator system 10 is located in an elevator shaft 12 and includes one or more guide rails 14 attached to the elevator shaft 12. The guide rails 14 are connected to a elevator car 16 to guide the movement of the elevator car 16 through the elevator shaft 12. As shown in FIGS. 1 and 2, in some embodiments, the elevator car 16 includes at least one guide shoe 18 that interfaces with the guide rail 14.
    [00010] One embodiment of a guide rail 14 is shown in FIG. 2. The cross section is formed of a metal plate, which can be curved, laminated, welded, and / or otherwise manipulated to the final shape. The guide rail 14 of FIG. 2 is formed from a single piece of sheet metal. In other embodiments, however, the guide rail 14 can be formed of two or more pieces of sheet metal formed on the guide rail 14. The guide rail 14 includes a base 20 having two base blocks 22 configured to rest against the elevator shaft wall 12. A web 24 extends in a direction from the base 20 to the elevator shaft 12 towards the elevator car 16. To improve the stiffening of the guide rail 14, in a transition area between the base 20 and the web 24, there is space 40 between an inner plate 42 and an outer plate 44 of material. Each or both of the base 20 and the web 24 comprise multiple layers of sheet metal material so that the guide rail 14 has sufficient stiffness and sufficient rigidity to guide the elevator car 16. The web 24 extends to a section of tip 26. The tip section 26, as shown in FIG. 2, it can have the same dimensional shape as a typical steel guide rail. The nose section 26 includes one or more thicknesses of material 28 to form an outer portion 30 of the nose section and a nose cavity 32 within the nose section 26. As shown in FIG. 2, the elevator car 16 has a guide shoe 18 that includes a safety brake 36. When a condition exists in which the elevator car 16 needs to be stopped, the safety brake 36 is actuated to engage the guide rail 14 and stop the elevator car 16. More specifically, the safety brake 36 applies braking forces to the outside 30 of the nose section 26, in order to stop the elevator car 16. One or more stiffeners 34 are located in the nose cavity 32 and spread at least partially through the nose cavity 32 to stiffen the nose section 26 and allow it to withstand such braking forces. If the nose section 26 is not sufficiently rigid, when the braking forces are applied, the nose section 26 could fail structurally, requiring the replacement of the guide rail 14. In some embodiments, such as in FIG. 2, the stiffeners 34 can be shaped as deflectors. In some embodiments, such as in FIG. 3, the stiffeners can be ribs extending towards the sides 38 of the tip section 26, or as in FIG. 4, the stiffeners may comprise loops of material disposed in the nose cavity 32. In other embodiments, a filler material can be inserted into the nose cavity 32 by injection or by other means to impart additional stiffness to the nose section. In addition to the exemplary embodiments shown and described here, many other variations of the tip section 26, with various configurations of stiffeners 34, also exist in a manner that is consistent with the invention.
    [00011] The guide rail mode 14 shown in FIG. 2 is merely exemplary and other forms of guide rail shape 14 are shown in FIGS. 5 to 10. In FIG. 5, the guide rail 14 includes a triangular shaped base 20 from which the web 24 extends to the tip section 26. The web 24 of the guide rail 14 comprises two thicknesses of material 28, different from the four thicknesses of material of the embodiment shown in FIG. 2. The base includes a corrugated-shaped base block 22 for interfacing with the elevator shaft wall 12. With reference now to FIG. 6, another embodiment includes a flat base 20 with a folded base block 22. The web 24 of the guide rail 14 of FIG. 6 also comprises two thicknesses of material 28. The embodiment of FIG. 7 includes a triangular base 20, and a web 24 that comprises four thicknesses of material. The nose section 26 includes stiffeners 34 that extend into the nose cavity 32. FIG. 8 shows a modality in which the nose section 26 does not include a nose cavity 32, and the web 24 has two thicknesses of material 28. Having the thicknesses of material side by side in the nose section 26 increases stiffness due to lack of interstice and therefore will withstand braking forces applied to it. One embodiment is shown in FIG. 9 having a base 20 with two base blocks 22, a base block 22 at each end of the base 20. The core 24 comprises four thicknesses of material, and the tip section 26 includes two stiffeners 34 that extend to an end of tip 46 of tip section 26.
    [00012] Another embodiment of a guide rail 14 formed from a single piece of sheet metal is shown in FIG. 10. The guide rail 14 includes a flat base 20 having two base blocks 22 configured to rest against the elevator shaft wall 12. The web 24 extends in one direction from the base 20 towards the elevator car 16 In this embodiment, the web 24 comprises two web legs 58 that define a web with a triangular shape 24. The end section 26 comprises three thicknesses of material 28 in contact with each other without interstices between them, effectively a solid form to support the braking forces applied to it.
    [00013] As shown in FIG. 11, some guide rail modalities 14 can be used with a safety brake 36 that engages the core 24 of the guide rail 14. The brake frame 48 is configured to engage the tip section 26 with a guide shoe 18. A braking portion 50 extends around the nose section 26 and the core 24, inside the nose section 26. When desired, the safety brake 36 is engaged and applies braking force to the soul 24 to stop the elevator car 16. Such a safety brake configuration 36 requires less reinforcement of the nose section 26 than a typical safety brake, in which the safety brake 36 engages the nose section 26. Also, the single brake frame configuration 48 prevents the removal of the brake frame (and the elevator car 16) from the guide rail 14 in the event of a seismic movement of the building, or in similar circumstances. It is avoided because the release of the brake frame 48 to the web 24 is less than a width of the tip section 26.
    [00014] The formation of the guide rail 14 from sheet metal allows a guide rail 14 of lighter weight when compared to the typical steel guide rail that has sufficient rigidity and stiffness. A lighter guide rail 14 makes it easier and safer to install the guide rail 14 in the elevator shaft 12. Also, in FIG. 12, the guide rail 14 can be formed on site, even inside the elevator shaft 12. In one embodiment, a forming machine 52 includes rollers 54, welders (not shown) and other components necessary to form the guide rail 14 from a flat sheet metal part, it is located in the elevator shaft 12. A sheet metal material 56 is fed into a first end 60 of the forming machine 52, and is laminated, formed, punched, and / or welded in a guide rail 14 having the desired cross section. The finished guide rail 14 exits a second end 62 of the forming machine 52 and, in some embodiments, can be positioned in the elevator shaft 12 and / or attached to it by the forming machine 52. In some embodiments, the forming machine formation 52 can be configured to travel along the elevator shaft 12 while the guide rail 14 is formed. For example, the forming machine 14 can form a desired length of guide rail 14 which is positioned in the elevator shaft 12 and secured to it. The forming machine 52 is then propelled along the length of the rail 14 by internal or external means, and forms a second length of the guide rail 14. This process can be continued until the entire guide rail 14 is complete. Using on-site training of the guide rail 14 enables simplified installation process, and in some cases, a single unitary guide rail 14 extending along the entire length of the elevator shaft 12 can be formed. Such a guide rail 14 having no seams between discrete segments of guide rail 14 eliminates differences that can occur between segments and results in a smoother and quieter operation of the elevator system 10.
    [00015] While the invention has been described in detail in connection with only a limited number of modalities, it should be readily understood that the invention is not limited to such described modalities. Instead, the invention can be modified to incorporate any number of variations, alterations, substitutions or equivalent arrangements not described here, but which are commensurate with the spirit and scope of the invention. In addition, while various embodiments of the invention have been described, it should be understood that aspects of the invention may include only some of the described embodiments. Accordingly, the invention should not be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.
    权利要求:
    Claims (18)
    [0001]
    1. Guide rail (14) for an elevator system (10) in an elevator shaft (12), characterized by the fact that it comprises: a base (20) connectable with an elevator shaft wall (12); a web section (24) connected to and extending from the base (20), the web section (24) having a web cross section width; and a nose section (26) located at one end of the core section (24) and operably connectable to the elevator car (16) of the elevator system (10), the nose section (26) having a cross section width tip greater than the width of the web cross section; wherein the base (20), the core section (24) and the tip section (26) are formed by one or more thicknesses (28) of sheet metal material and configured so that braking forces applied to the rail guide (14) by the braking mechanism reduce the speed of the elevator car (16) without resulting in failure of the guide rail (14); wherein the nose section (26) includes a nose cavity (32) disposed therein; and wherein the nose section (26) includes a stiffener (34) arranged in the nose cavity (32) extending along the entire length of the guide rail (14) to reinforce and provide rigidity for the nose section ( 26).
    [0002]
    Guide rail (14) according to claim 1, characterized in that the guide rail (14) is formed in the elevator shaft (12) from sheet metal material (56).
    [0003]
    Guide rail (14) according to claim 2, characterized in that the guide rail (14) is formed in the elevator shaft (12) by a process including one or more lamination, punching and / or welding.
    [0004]
    Guide rail (14) according to claim 1, characterized in that the stiffener (34) includes one or more closed loops of sheet metal material (56) disposed in the tip cavity (32).
    [0005]
    Guide rail (14) according to claim 1, characterized in that the guide rail (14) is formed of a single piece of sheet metal.
    [0006]
    Guide rail (14) according to claim 1, characterized in that the core section (24) comprises more than two sheet metal thicknesses.
    [0007]
    7. Guide rail (14) according to claim 1, characterized in that the braking forces are applied to the guide rail (14) in the tip section (26).
    [0008]
    Guide rail (14) according to claim 1, characterized in that the braking forces are applied to the guide rail (14) in the web section (24).
    [0009]
    9. Guide rail (14) according to claim 1, characterized by the fact that the base (20), the core section (24), the tip section (26) and the stiffener (34) are formed to from the same single continuous piece of sheet metal material (56).
    [0010]
    10. Elevator system (10), characterized by the fact that it comprises: an elevator car (16) arranged in an elevator shaft (12); a guide rail (14) extending along the elevator shaft (12) and operably connected to the elevator car (16) to guide the elevator car (16) through the elevator shaft (12), the guide (14) including: a base (20) connectable to an elevator shaft wall (12); a web section (24) connected to and extending from the base (20), the web section (24) having a web cross section width; and a tip section (26) located at one end of the web section (24) and operably connectable to the elevator car (16), the tip section (26) having a tip cross section width greater than the width of core cross section; wherein the base (20), the core section (24) and the tip section (26) are formed by one or more thicknesses (28) of sheet metal material; wherein the nose section (26) includes a nose cavity (32) disposed therein; wherein the nose section (26) includes a stiffener (34) arranged in the nose cavity (32) extending along the entire length of the guide rail (14) to reinforce and provide rigidity for the nose section (26 ); and a braking mechanism (36) operably connected to the guide rail (14) and the elevator car (16), the guide rail (14) configured so that braking forces applied to the guide rail (14) by the mechanism brakes reduce the speed of the elevator car (16) without resulting in failure of the guide rail (14).
    [0011]
    Elevator system (10) according to claim 10, characterized in that the guide rail (14) is formed of a single piece of sheet metal.
    [0012]
    Elevator system (10) according to claim 11, characterized in that the core section (24) comprises more than two sheet metal thicknesses.
    [0013]
    Elevator system (10) according to claim 10, characterized in that the stiffener (34) includes one or more closed loops of sheet metal material (56) disposed in the tip cavity (32).
    [0014]
    Elevator system (10) according to claim 10, characterized in that the braking mechanism (36) applies a frictional force to the tip section (26) of the guide rail (14) when it is desired to reduce the elevator car speed (16) along the elevator shaft (12).
    [0015]
    Elevator system (10) according to claim 10, characterized in that the braking mechanism (36) applies a frictional force to the web section (24) of the guide rail (14) when it is desired to reduce the elevator car speed (16) along the elevator shaft (12).
    [0016]
    Elevator system (10) according to claim 10, characterized in that the guide rail (14) extends substantially seamlessly along the entire length of the elevator shaft (12).
    [0017]
    Elevator system (10) according to claim 10, characterized in that the guide rail (14) is formed in the elevator shaft (12) from sheet metal material (56).
    [0018]
    Elevator system (10) according to claim 17, characterized in that the guide rail (14) is formed in the elevator shaft (12) by a process including one or more lamination, punching and / or welding.
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    法律状态:
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-08-27| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-06-09| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2020-12-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-12-29| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 29/12/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2010/035742|WO2011146071A1|2010-05-21|2010-05-21|Sheet metal guide rail for an elevator system|
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