JP5985682B2 - Elevator control cable fixing device - Google Patents

Description

  Embodiments of the present invention relate to a fixing device that fixes a control cable connected between an elevator control panel and equipment in a hoistway, landing equipment, or a car to a beam in the hoistway.

  In the elevator, a control cable is connected between the control panel and these devices in order to transmit and receive control signals and feed power between the control panel and the equipment in the hoistway and the landing equipment. The control cable extends vertically in the hoistway. The control cable is fixed via a fixing device to a structural member in the hoistway, usually a beam to which a guide rail is coupled, so as not to move freely in the hoistway.

  Welding is performed to fix the fixing device to the beam, or the fixing device is attached to the beam by screw fastening after drilling a hole for attaching the fixing device to the beam. In any of the above operations, the burden on the operator is not small. In addition, if welding is performed during renewal of an existing elevator, a fire may occur. In addition, when the existing elevator is renewed, an unexpected situation may occur in which the control cable interferes with the equipment in the hoistway when the control cable is actually suspended at the planned position. In this case, it is necessary to change the position of the fixing device. Therefore, it is necessary to re-weld or re-open the mounting hole.

JP 2008-207901 A

  An object of the present invention is to provide a control cable fixing device that can be easily attached to a beam that is a structural member in a hoistway and that can be easily adjusted in position.

  According to an embodiment of the present invention, there is provided a fixing device for fixing an elevator control cable to a beam which is a structure in a hoistway, and is provided on a base and the base, and holds the control cable And at least one fixture provided on the base and fixing the base to the beam. Each fixture has a fixing piece and a screw, and the screw is fastened by screw fastening. The beam is sandwiched between the base and the fixed piece by pressing the fixed piece against the base by the generated axial force, and the screw is seen in a cross section in a direction perpendicular to the longitudinal direction of the beam. Thus, a fixing device located outside the beam is provided.

It is the schematic perspective view which displayed only the thing required for description of a fixing device among the members provided in the hoistway where the fixing device of the control cable which concerns on one Embodiment of this invention is installed. It is a schematic perspective view which shows a mode that the fixing device which concerns on one Embodiment of this invention was attached to the beam which is a structure in a hoistway. It is a front view of the fixing device shown in FIG. It is sectional drawing of the fixing device shown in FIG.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic perspective view showing only members necessary for explanation of a fixing device among members provided in a hoistway where a fixing device for a control cable according to an embodiment of the present invention is installed. Reference numeral 10 denotes a car that moves up and down in the hoistway. As known to those skilled in the art, the car 10 is suspended from one end of a main rope (not shown) driven by an electric motor (not shown), and a counterweight ( (Not shown) is suspended. The car 10 is guided by a pair of guide rails 11 and 11, and a counterweight (not shown) is guided by the pair of guide rails 12 and 12.

  A control cable 15 extending from a control panel 2 provided in a machine room (not shown) provided in the hoistway ceiling portion enters the hoistway from a position higher than that in FIG. 1 and extends downward. The control cable 15 is a landing device 4 (for example, a call button provided at the landing or a landing monitoring device for operation control) or a hoistway device 6 (for example, a building ceiling provided at the top of the hoistway). Between the limit switch for collision prevention or the landing position sensor) and the control panel 2, transmission and reception of signals such as detection signals and control signals, and power feeding are mediated.

  The control cable 15 is fixed to a beam 13 forming a part of the hoistway structure via a fixing device 20.

  As shown in FIG. 2, the beam 13 is coupled to the guide rails 11 and 12 by screw fastening via the rail mounting portion 14 schematically shown in FIGS. 1 and 2. That is, the guide rails 11 and 12 that are structures in the hoistway are supported by the beam 13 via the rail mounting portion 14. The arrangement of the guide rails in the hoistway is changed according to the arrangement of the car and the counterweight, and the arrangement of the guide rails 11 and 12 and the beams 13 shown in FIG. 1 is merely an example. .

  As shown in FIGS. 2 to 4, a fixing device 20 for fixing the control cable 15 to the beam 13 is attached to the beam 13. The fixing device 20 includes a base 21 (consisting of two parts in this example), holders (22, 26) that hold the control cable 15, and a fixture 24.

  In this embodiment, the holder is composed of a ductor 22 and a cabler 26. The Ductor 22 and the cabler 26 are well known as fixtures for fixing electric wires (cables), piping and the like to a building. Although a detailed description of these structures is omitted, by tightening the screw 26a of the cabler 26 with the cabler 26 inserted into the ductor 22, the cabler 26 through which the control cable 15 is passed is firmly fixed to the ductor 22. In addition, the control cable 15 is also firmly fixed to the cabler 26.

  In the present embodiment, the two parts constituting the base 21 and the ductor 22 are connected and integrated by screw fastening via a bolt / nut 23. However, the base 21 may be a single component (for example, one flat plate).

  The fixing device 20 is fixed to the beam 13 by a plurality of fixing tools 24 here. Four sets of fixtures 24 are provided at both upper and lower ends of the base 21. The beam 13 is made of H-section steel. Two sets of fasteners 24 engage the edge of the upward flange portion of the H-shaped steel, and the remaining two sets of fasteners 24 engage the edge of the downward flange portion of the H-shaped steel. By using four sets of fixtures 24, the base 21 can be firmly fixed to the beam 13. However, if the width of the base portion 21 is narrow, it is possible to use a number smaller than four sets, for example, two sets of fixtures 24.

  Each fixing tool 24 has a rail clip 24a as a fixing piece, a bolt (screw) 24b, and a nut 24c screwed into the bolt 24b. The bolt 24 b passes through a hole (not shown) formed in the rail clip 24 a and a long hole 25 formed in the base 21. By tightening the bolt 24b or the nut 24c, the rail clip 24a presses the flange portion of the H-shaped steel forming the beam 13 toward the base portion 21. That is, the flange portion of the H-shaped steel forming the beam 13 is sandwiched between the rail clip 24a and the base portion 21 by the axial force generated by screw fastening. Thereby, the fixing device 20 can be firmly fixed to the beam 13.

  As is clear from FIG. 4 showing a cross section in a direction orthogonal to the longitudinal direction of the beam 13, the bolt 24 b is located outside the beam 13. That is, the bolt 24b does not penetrate the beam 13, and a through hole for passing the bolt 24b through the beam 13 is not provided. Further, a bolt for fixing the fixing device 20 is not implanted in the beam 13. Thus, since it is not necessary to process the beam 13, the work load is reduced. Further, there is an advantage that the fixing device 20 can be moved in the longitudinal direction of the beam 13 without dropping off the beam 13 by loosening the bolt 24b appropriately after fixing the fixing device 20 to the beam 13.

  In order to fix the control cable 15 to the beam 13, first, the fixing device 20 is fixed to an appropriate position on the beam 13, and further the control cable 15 is fixed to the fixing device 20. In this state, it is confirmed whether or not the control cable 15 that hangs downward from the fixing device 20 interferes with the equipment in the hoistway. If it is confirmed that interference occurs, the bolt 24b is loosened moderately. Then, since the fixing device 20 can move along the beam 13, the fixing device 20 is fixed again at an appropriate position on the beam 13, and interference between the control cable 15 and the equipment in the hoistway occurs again. Check whether or not. This is repeated, and when it is confirmed that interference between the control cable 15 and the equipment in the hoistway does not occur, the fixing device 20 is firmly fixed to the beam 13 and the control cable 15 is firmly fixed to the fixing device 20.

  According to the above embodiment, since welding is not used in fixing the fixing device 20 of the control cable 15 to the beam 13, it is possible to prevent a fire from being generated in the building particularly when the existing elevator is renewed. In addition, it is not necessary to make a hole in the beam 13 when fixing the fixing device 20 to the beam 13 regardless of whether the elevator is newly installed or the existing elevator is renewed. In addition, even if the position of the fixing device 20 needs to be adjusted, the operation can be easily performed. In addition, since the control cable can be temporarily suspended in advance, the flexibility of the work procedure is improved, and the installation work can be quickly performed when the work time is limited.

  The fixing device 20 according to the above embodiment fixes the control cable 15 that connects between the control panel 2 and the landing device 4 or the hoistway device 6 in the hoistway. However, the above-described fixing device can also be used for fixing a control cable for connecting a control panel and a relay box in a hoistway, for example, in an elevator for a high-rise building. A cable called a tail cord (also a control cable) is connected between the relay box and the car, and signals such as detection signals and control signals between the control panel and the car via the control cable and the tail cord. Transmission / reception and power feeding are performed. Further, the above fixing device can be used for fixing the upper portion of the tail cord (portion close to the control panel) in the hoistway. In this case, as a holder for the band-shaped (flat plate) control cable, a holder suitable for fixing the band-shaped control cable to the base 21 instead of the ductor 22 and the cabler 26 (for example, the central portion is a cable). A presser fitting having a shape corresponding to the cross-sectional shape and having screw holes for fixing screws to the base of the fixing device at both ends can be used. In this case, for example, the base of the fixing device is configured as a rectangular plate-like single part, and the holding metal is fixed to the base using a screw in a state where the band-shaped control cable is sandwiched between the holding metal and the base. By doing so, the control cable can be fixed to the base. In this case as well, the same fixture 24 can be used, and the same effect as in the above embodiment can be obtained.

  The above embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

13 Beam 15 Control Cable 20 Fixing Device 21 Base 22, 26 Holder 22 Ductor 26 Cabler 24 Fixing 24a Rail Clip

Claims (2)

A fixing device for fixing a control cable for an elevator to a beam extending in a horizontal direction that is a structure in a hoistway,
The base,
A holder provided on the base for holding the control cable;
At least four sets of fixtures provided on the base and fixing the base to the beam;
With
Each set of fixtures includes a fixing piece and a screw, and the screw presses the fixing piece against the base by an axial force generated by screw fastening, so that the beam is interposed between the base and the fixing piece. The screw is positioned on the outer side of the beam as viewed in a cross section in a direction perpendicular to the longitudinal direction of the beam,
The fixed piece is a rail clip,
The first fixture and the second fixture of the four sets of fixtures engage with the upward flange portion of the two flange portions extending in opposite directions of the beam formed as a shape steel. A third fixing tool and a fourth fixing tool of the four sets of fixing tools engage with a downward flange portion of the two flange portions;
When the fixing device is viewed from the front, the control cable is connected between the first fixing tool and the second fixing tool and between the third fixing tool and the fourth fixing tool. A fixing device extending in the vertical direction . The fixing device according to claim 1 , wherein the holder includes a ductor and a cabler attached to the ductor.

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