JP2011219193A - Elevator rope terminal fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator rope terminal fixing device by which workability of an operator is improved with a simple configuration.SOLUTION: The device includes: a top support beam 2 for supporting an installation object at a hoist way top part, which is provided in a hoist way 1; a terminal fixing plate 10 for fixing one end of a main rope 6 connected to a box 5 which goes up and down in the hoist way 1; a first plate support frame 9a, 9b which is connected to a top part support beam 2 for supporting the terminal fixing plate 10, and which is vertically hung down; and a second plate support frame 9c, 9d which is vertically hung down through an attaching bracket 13 connected to the top support beam 2, which supports the terminal fixing plate 10, and whose length is shorter than that of the first plate support frame.

Description

  In the so-called machine roomless elevator in which the hoisting machine is provided at the top of the hoistway, the present invention can easily adjust the rope terminal even when the space of the hoistway top where the top support beam is arranged is not sufficient. The present invention relates to an elevator rope terminal fixing device.

  Conventionally, in a machine roomless elevator in which a hoisting machine is installed at the top of a hoistway, a top installation such as a hoisting machine is fixed by a top support beam. Moreover, the both ends of the rope which suspends a cage | basket | car and a counterweight are being fixed by the rope terminal fixing | fixed part provided in the top part support beam.

  However, in the elevator described above, the top support beam is installed close to the top of the hoistway, so that an operator is forced to take an unreasonable posture when performing adjustment work on the rope terminal fixing part on the top of the car. This may increase the burden on the operator.

  Thus, it has been known so far that the rope end fixing position is provided below the top support beam (for example, Patent Document 1). In such a technique, one end of the rope is inverted by a guide sheave provided on the top support beam so as to go below the top support beam, and the end of the rope is guided to raise and lower the car in the hoistway. It is set as the structure fixed with the elevator rope terminal fixing device with which the guide rail to be equipped was equipped.

JP 2009-220916 A

  In the conventional elevator rope terminal fixing device as described above, since the rope terminal fixing device is provided in the guide rail of the car provided in the hoistway, the structure is complicated, and the rope terminal by the operator It was difficult to mount the fixed part.

  Accordingly, the present invention has been made to solve the above-described conventional drawbacks, and an object thereof is to provide an elevator rope terminal fixing device capable of improving workability by an operator with a simple configuration. .

  In order to achieve the above object, an elevator rope terminal fixing device according to the present invention includes a top support beam provided in a hoistway and supporting a hoistway top installation, and a main rope connected to a car that moves up and down in the hoistway. A terminal fixing plate for fixing one end of the terminal supporting plate, a plurality of plate supporting frames coupled to the top supporting beam and suspended vertically to support the terminal fixing plate, the top supporting beam and the plurality of plate supporting members. A mounting bracket for connecting an arbitrary plate support frame of the frame, and the arbitrary plate support frame is shorter in length than the plurality of plate support frames to which the mounting bracket is not mounted. It is characterized by that.

  ADVANTAGE OF THE INVENTION According to this invention, workability | operativity of the adjustment work of the rope terminal fixing | fixed part by an operator can be improved by making a rope terminal fixing position low by simple structure.

1 is an overall configuration diagram of an elevator according to a first embodiment of the present invention. It is a perspective view which shows the detail of the elevator rope terminal fixing device which concerns on the 1st Embodiment of this invention. (A) It is the front view which showed the detail of the hitch attachment bracket connection part which concerns on the 1st Embodiment of this invention. (B) It is sectional drawing which showed attachment of the hitch attachment bracket which concerns on the 1st Embodiment of this invention. (A) It is the front view which showed the attachment example from which the hitch attachment bracket which concerns on the 1st Embodiment of this invention differs. (B) It is sectional drawing which shows the attachment example from which the hitch attachment bracket which concerns on the 1st Embodiment of this invention differs. It is a figure which shows the attachment state to the hitch attachment bracket of the elevator rope terminal fixing device which concerns on the 1st Embodiment of this invention. (A) It is a front view of the elevator rope terminal fixing device which shows the temporary placement shaft which concerns on the 1st Embodiment of this invention. (B) It is sectional drawing which shows the machine beam provided with the temporary placement shaft which concerns on the 1st Embodiment of this invention. (A) It is a front view which shows attachment of the elevator rope terminal fixing device using the temporary placement shaft which concerns on the 1st Embodiment of this invention. (B) It is sectional drawing which shows attachment of the elevator rope terminal fixing device using the temporary placement shaft which concerns on the 1st Embodiment of this invention. It is detail drawing which shows attachment of the L-shaped bracket used for the 2nd Embodiment of this invention. It is a figure which shows attachment of the elevator rope terminal fixing device which concerns on the 2nd Embodiment of this invention. It is a figure which shows the attachment example from which the elevator rope terminal fixing device which concerns on the 2nd Embodiment of this invention differs. It is detail drawing which shows the hitch frame which concerns on the 3rd Embodiment of this invention.

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

(First embodiment)
FIG. 1 is a configuration diagram simply showing the overall configuration of the elevator according to the first embodiment of the present invention. FIG. 2 is a perspective view showing the rope fixing terminal device according to the first embodiment of the present invention. FIG. 3 is a front view showing details of the elevator rope terminal fixing device according to the first embodiment of the present invention. FIG. 4 is a sectional view showing attachment of the elevator rope terminal fixing device according to the first embodiment of the present invention. Fig.5 (a) is a front view of the elevator rope terminal fixing device which shows the temporary placement shaft which concerns on the 1st Embodiment of this invention. FIG.5 (b) is a front view which shows attachment of the elevator rope terminal fixing device using the temporary placement shaft which concerns on the 1st Embodiment of this invention.

  First, the structure of an elevator is demonstrated below using FIG.

  As shown in FIG. 1, a top support beam 2 (hereinafter referred to as a machine beam 2) configured by facing U-shaped members facing each other is provided at the top of the hoistway 1. A hoisting machine 3 and a main sheave 4 are attached and arranged on the top.

  Further, the machine beam 2 is provided with an elevator rope terminal fixing device 7 for fixing one end of the rope 6 for suspending the car 5 by the fixing portion 101. A counterweight 8 is suspended from the other end of the rope 6 that suspends the car 5.

  The hoisting machine 3 is provided with a pulse generator (not shown) for measuring the rotation of the motor. The car 5 moves up and down in the hoistway 1 by the hoisting machine 3 via the rope 6.

  Next, the structure of the elevator rope terminal fixing device 7 is demonstrated using FIG. 2 and FIG.

  As shown in FIG. 2, the elevator rope terminal fixing device 7 provided on the machine beam 2 includes four L-shaped plate support frames 9 (9a, 9b, 9c, 9d) (hereinafter referred to as hitch frames 9). And L-shaped plate support beams 11a and 11b provided under the hitch frame 9, and a terminal fixing plate 10 (hereinafter referred to as hitch plate 10) supported by the plate support beams 11a and 11b.

  The hitch frame 9 and the plate support beams 11a and 11b are fixed by bolts or the like (not shown). That is, each hitch frame 9 is arranged so that the respective L-shaped corners face each other, and plate support beams 11a and 11b are fixed to lower ends between the hitch frames 9a and 9b and between 9c and 9d, respectively. In addition, the hitch plate 10 is fixed so as to be placed over the fixed plate support beams 11a and 11b, and is fixed by bolts or the like.

  A plurality of connecting holes 14 are formed on the free end side of the hitch frame 9.

  The hitch plate 10 is provided with a plurality of through holes 21 for fixing through the rope 6 for hanging the car. The end of the rope 6 on the counterweight 8 side passes through the through hole 21 and is fixed by the fixing portion 101 at the top of the hitch plate 10. In the fixing portion 101, the tip of the lobe 6 is fixed by a fixing tool 202 such as a nut, and a spring 201 is provided between the hitch plate 10 and the fixing tool 202, thereby buffering the load stress in the vertical downward direction of the rope 6. ing.

  Here, the hitch frame 9 has a different length. Specifically, hitch frames 9a and 9b have the same length, and hitch frames 9c and 9d have the same length and are shorter than hitch frames 9a and 9b. The long hitch frames 9a and 9b are arranged on one side of the opposing plate support beams 11a and 11b, respectively, and the short hitch frames 9c and 9d are arranged on the other side of the opposing plate support beams 11a and 11b, respectively.

  Further, as shown in FIGS. 3A and 3B, hitch mounting brackets 12a and 12b are mounted on the machine beam 2. That is, as shown in FIG. 3B, at least one of the plurality of connecting holes 15 provided in the hitch mounting brackets 12a and 12b and the plurality of mounting holes 16 provided in the machine beam 2 is made to coincide with each other. The brackets 12a and 12b are attached by bolts (not shown) so that the lower ends of the brackets 12a and 12b protrude below the machine beam 2. This constitutes a connecting portion.

  However, the hitch mounting brackets 12a and 12b may be previously attached to the machine beam 2 by welding or the like. Alternatively, as shown in FIGS. 4A and 4B, the upper portions of the hitch mounting brackets 12a and 12b may be L-shaped as bent portions and fixed to the upper surface of the machine beam 2 with bolts or the like (not shown).

  As shown in FIG. 5, the hitch frame 9 described above is connected to the machine beam 2 via a connecting portion constituted by the hitch mounting brackets 12 a and 12 b and the machine beam 2 opposite to the side surface of the hoistway 1. The

  The hitch frame 9, the hitch mounting brackets 12a and 12b, and the machine beam 2 are connected and fixed by bolts or the like using the connecting holes 14 and 15 and the mounting holes 16 provided respectively.

  At this time, the connecting hole 15 of the hitch mounting brackets 12a and 12b is positioned so as to coincide with the connecting hole 14 of the hitch frames 9c and 9d in a state where the hitch frames 9a and 9b and the machine beam 2 are connected by the connecting portion. Is provided.

  Specifically, first, the connecting hole 14 provided in the long hitch frames 9a and 9b and the mounting hole 16 provided in the machine beam 2 are made to coincide with each other, a bolt is inserted therein, and the machine beam 2 is fixed by a nut. And hitch frames 9a and 9b are connected.

  Next, the connecting hole 14 provided in the short hitch frames 9c and 9d and the connecting hole 15 provided in the hitch mounting bracket 12 are made to coincide with each other, a bolt 17 is inserted into the hitch mounting bracket 12, and the nut is fixed with a nut. Frames 9c and 9d are connected.

In this embodiment, hitch frames 9a, 9b, 9c, 9d, hitch mounting brackets 12a, 12b, and machine beam 2 are provided with three connection holes 14, 15 and mounting holes 16, respectively. The mounting height of the fixing device 7 can be set arbitrarily.

  In the present embodiment, the mounting brackets 12a and 12b are attached to the machine beam 2, but may be integrated.

  In addition, as shown in FIG. 6A, a configuration may be adopted in which a notch hole 19 different from the connection hole 14 is provided in the upper part of the hitch frame 9 and a temporary shaft 18 is provided in the upper part of the machine beam 2. In this case, the temporary shaft 18 is provided so as to protrude from the machine beam 2 as shown in FIG. Therefore, the elevator rope terminal fixing device 7 is temporarily placed on the machine beam 2 as shown in FIGS. 7A and 7B by hooking the notch hole 19 to the temporary placement shaft 18 provided on the machine beam 2. be able to.

  Thereby, even when there is one worker, there is an advantage that the elevator rope terminal fixing device 7 can be easily attached.

  By providing the machine beam 2 with the elevator rope terminal fixing device 7 as described above, the operator's rope terminal fixing work position is lowered, and the workability is improved as compared with the prior art.

(Second Embodiment)
Next, a second embodiment will be described. In addition, about the structure and effect | action similar to the said 1st Embodiment, it abbreviate | omits suitably.

  FIG. 8 is a detailed view showing the attachment of the L-shaped bracket used in the second embodiment of the present invention. FIG. 9 is a diagram showing attachment of the elevator rope terminal fixing device according to the second embodiment of the present invention. FIG. 10 is a view showing different attachment examples of the elevator rope terminal fixing device according to the second embodiment of the present invention.

  In 1st Embodiment mentioned above, since the rope terminal fixing position 7 exists in a low position compared with the past, the workability | operativity of a rope terminal fixing work improves.

  As shown in FIG. 5 described in the first embodiment, the bolts 17 for connecting the machine beam 2 and the hitch mounting bracket 12 are attached even when the distance between the machine beam 2 and the hoistway 1 wall is short. It can be done easily.

  Therefore, the elevator rope terminal fixing device 7 can be attached to the machine beam 2 without being affected by the wall surface of the hoistway 1.

  Specifically, as shown in FIG. 8, an L-shaped bracket 13, which will be described in detail later, is applied to the hitch frames 9 c and 9 d of the elevator rope terminal fixing device 7 in the first embodiment described above in the same manner as described above. By being attached, the elevator rope terminal fixing device 7 is easily provided to the machine beam 2 for the operator.

  Hereinafter, attachment of the L-shaped bracket 13 and the hitch frames 9c and 9d will be described.

  In the present embodiment, the L-shaped bracket 13 depends on the mounting position of an arbitrary connecting hole 14 among the plurality of connecting holes 14 provided in the hitch frames 9c, 9d and the connecting hole 131 provided on the side surface of the L-shaped bracket 13. The mounting height can be set arbitrarily. Here, as shown in FIG. 8, the L-shaped bracket 13 is attached using the lower two connecting holes 14 among the three connecting holes 14 provided in the hitch frames 9c and 9d.

  Next, attachment of the machine beam 2, the hitch frames 9a and 9b, and the L-shaped bracket 13 will be described with reference to FIG.

  A connection hole 130 is provided on the upper surface of the L-shaped bracket 13 similarly to the side surface, and the connection hole 14 and the connection hole 132 provided on the lower surface of the machine beam 2 are connected by a bolt 17 or the like in the same manner as described above. Thus, the elevator rope terminal fixing device 7 can be attached regardless of the distance from the wall surface of the hoistway 1.

  In the present embodiment, an arbitrary connection hole 14 among the plurality of connection holes 14 provided in the hitch frame 9, a connection hole 130 provided in the side surface of the L-shaped bracket 13, and a connection hole 16 provided in the machine beam 2, The mounting height of the elevator rope terminal fixing device 7 can be arbitrarily set according to the mounting position with 132.

  Further, as shown in FIG. 10, by attaching and fixing the L-shaped bracket 13 to the hitch frames 9c and 9d so that the position of the upper surface of the L-shaped bracket 13 is equal to or higher than the upper ends of the hitch frames 9c and 9d. It becomes easier to attach the elevator rope terminal fixing device 7 to the machine beam 2.

  Specifically, when the elevator rope terminal fixing device 7 is attached to the machine beam 2, the elevator rope terminal fixing device 7 can be attached to the machine beam 2 from the horizontal direction as shown in FIG. In the embodiment, the upper two of the connecting holes 14 shown in FIG. 8 are used to attach the L-shaped bracket 13 to the hitch frames 9c and 9d, and the upper surface of the hitch frames 9c and 9d is positioned on the upper surface of the L-shaped bracket 13. Is equal to or greater than.

  By adopting such a configuration, the operator's installation work of the elevator rope terminal fixing device 7 becomes easier than the installation from the vertically downward direction.

(Third embodiment)
Next, a third embodiment will be described.

  FIG. 11 is a detailed view of a hitch according to the third embodiment of the present invention.

  As shown in FIG. 11, by connecting the connection holes 14 in the above embodiment, the connection position of the elevator rope terminal fixing device 7 can be easily changed to the connection connection hole 19.

  The coupling connection hole 19 includes a hole portion having a diameter and a coupling portion that connects the hole portions, and both portions have a diameter and a width that are larger than the diameter of a bolt shaft portion (not shown). Although details are the same as the method described in the above embodiment, the elevator rope terminal fixing device 7 is attached to the machine beam 2 by inserting a bolt into the hole portion of the coupling connecting portion 19 and fixing it with a nut.

  And when changing the attachment position of the elevator rope terminal fixing device 7, the bolt which is being fixed is loosened lightly, and the elevator rope terminal fixing device 7 is slid horizontally with respect to the bolt and moved up and down to an arbitrary position. be able to.

  In addition, let the hole part in this embodiment be a hole from which a lower part becomes concave so that the attached elevator rope terminal fixing device 7 may not remove | deviate from a hole part by vibration etc.

  Moreover, you may comprise the connection hole 19 not only in the shape shown in FIG.

DESCRIPTION OF SYMBOLS 1 ... Hoistway 2 ... Machine beam 3 ... Hoisting machine 4 ... Main sheave 5 ... Car 6 ... Rope 7 ... Elevator rope terminal fixing device 8 ... Counterweight 9a, 9b, 9c, 9d ... Hitch 10 ... Hitch plate 11 ... Plate Support beams 12a, 12b ... Hitch mounting bracket 13 ... L-shaped brackets 14, 15, 130, 131, 132 ... Connecting hole 16 ... Mounting hole 17 ... Bolt 18 ... Temporary placing shaft 19 ... Connecting connecting hole 21 ... Through hole

Claims (7)

A top support beam provided in the hoistway to support the hoistway top installation;
A terminal fixing plate for fixing one end of a main rope connected to a car moving up and down in the hoistway;
A first plate support frame connected to the top support beam supporting the terminal fixing plate and suspended vertically.
A second plate support frame suspended vertically through a mounting bracket connected to the top support beam that supports the terminal fixation plate and shorter in length than the first plate support frame;
An elevator rope terminal fixing device comprising:   The elevator rope terminal according to claim 1, wherein the top support beam, the first plate support frame, the second plate support frame, and the mounting bracket each include a connection hole for connecting the top support beam, the second plate support frame, and the mounting bracket. Fixing device.   The elevator rope terminal fixing device according to claim 2, wherein the mounting bracket is attached to a side surface of the top support beam on the hoistway side so that a lower end protrudes from a lower portion of the top support beam.   The mounting bracket is L-shaped so that one surface of the mounting bracket is protruded from the lower portion of the top support beam through the connection hole provided on the top surface of the top support beam. The elevator rope terminal fixing device according to claim 2, wherein the elevator rope terminal fixing device is attached to the elevator rope terminal.   The elevator rope terminal fixing device according to claim 2, wherein a notch is provided in an upper part of the connection hole provided in the first plate support frame and the second plate support frame.   The first plate support frame and the second plate support frame are provided with a plurality of connection holes, and the plurality of connections provided in the first plate support frame and the second plate support frame. Bolts for fixing at least one of the holes and the connection holes provided in the top support beam and the mounting bracket are between the connection holes of the first plate support frame and the second plate support frame. The elevator rope according to claim 2, wherein the plurality of connecting holes are coupled to each other in a length direction of the first plate support frame and the second plate support frame so as to slide on the elevator rope. Terminal fixing device. Furthermore, a shaft is provided on at least one of a portion of the top support beam to which the first plate support frame is connected and a portion of the mounting bracket projecting from the top support beam,
The first plate support frame and the second plate support frame have the connection hole at a position corresponding to the position of the shaft provided on the top support beam and the shaft provided on the mounting bracket. The elevator rope terminal fixing device according to claim 2.

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