JP2016055991A - Mounting structure of tail cord of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a tail cord of an elevator in which the tail cord with one end mounted in a car is prevented from coming into contact with an inner wall surface of a hoistway.SOLUTION: A mounting structure 1 of a tail cord of an elevator in the embodiment is characterized by mounting a tail cord 107 in a car 102 provided liftably in a hoistway 100 of a building. The mounting structure 1 of the tail cord includes a mounting change unit 21. The mounting change unit 21 mounts one end 107a of the tail cord 107 to the car 102. The mounting change unit 21 can change a distance between an inner wall surface positioning the tail cord 107 in the car 102 of the hoistway 100 and the one end 107a of the tail cord 107.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to an elevator tail cord attachment structure.

  Conventionally, an elevator moves a car to an arbitrary floor by moving a car as a lifting body in the hoistway. One end of a tail cord connected to a control panel provided in a hoistway or a machine room is attached to the car.

JP 2012-51712 A JP 2006-82970 A

  By the way, in the prior art, since the tail cord connects the car and the control panel, it is desired that the tail cord does not contact the inner wall surface of the hoistway.

  Therefore, the problem to be solved by the present invention is to provide an elevator tail cord attachment structure capable of suppressing the tail cord having one end attached to the car from coming into contact with the inner wall surface of the hoistway. It is in.

  The elevator tail cord attachment structure of the embodiment is such that the tail cord is attached to a car that is provided so as to be movable up and down in a hoistway of a building. The tail cord attachment structure includes an attachment changer. The attachment changer attaches one end of the tail cord to the car. The attachment changing portion enables the distance between the inner wall surface where the tail cord is positioned and the one end portion of the tail cord to be changed between the elevator cars.

Drawing 1 is an explanatory view showing typically the whole composition of the elevator which has the attachment structure of the tail code of the elevator concerning an embodiment. FIG. 2 is a front view of the elevator tail cord attachment structure according to the embodiment. FIG. 3 is a side view of the tail cord hanger and one end portion of the tail cord of the elevator tail cord attachment structure shown in FIG. 2. FIG. 4 is a front view for explaining an attachment structure and the like in a state where one end portion of the tail cord shown in FIG. 2 is located on the horizontal support portion. FIG. 5 is a front view for explaining an attachment structure and the like in a state in which one end portion of the tail cord shown in FIG. 2 is located on the first inclined support portion. FIG. 6 is a front view for explaining an attachment structure and the like in a state where one end portion of the tail cord shown in FIG. 2 is located on the second inclined support portion.

[Embodiment]
An elevator tail cord mounting structure according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view schematically showing an overall configuration of an elevator having an elevator tail cord attachment structure according to the embodiment, and FIG. 2 is a front view of the elevator tail cord attachment structure according to the embodiment. 3 is a side view of a tail cord hanger and one end portion of the tail cord of the elevator tail cord mounting structure shown in FIG. 2, and FIG. 4 is a side view showing one end portion of the tail cord shown in FIG. FIG. 5 is a front view for explaining the mounting structure and the like in a positioned state. FIG. 5 is a front view for explaining the mounting structure and the like in a state where one end portion of the tail cord shown in FIG. 2 is located on the first inclined support portion. FIG. 3 is a front view for explaining an attachment structure and the like in a state where one end portion of the tail cord shown in FIG. 2 is located on a second inclined support portion.

  The elevator tail cord attachment structure 1 (shown in FIG. 2 and the like, hereinafter simply referred to as the attachment structure) according to the embodiment is applied to the elevator 101 shown in FIG. The elevator 101 is installed in a hoistway 100 of a building, and registers a destination floor by operating a destination floor registration device (not shown) in the car 102 and a call registration device (not shown) provided on each floor 110. The passenger is transported to the desired floor 110 of the building based on the call registration by the operation of (1).

  As shown in FIG. 1, the elevator 101 includes a car 102, a counterweight 103, a drive mechanism 104, a control panel 106, the mounting structure 1, and the like.

  The car 102 is supported by a car guide rail (not shown) so as to be vertically movable in the hoistway 100. The car 102 includes a car room 102a for accommodating passengers. The car room 102a is formed in a box shape and can accommodate passengers and the like inside. The car room 102a is provided with one or more car side doors 102c for opening and closing the doorway 102b of the car room 102a.

  The counterweight 103 is supported by a weight guide rail (not shown) so as to be movable in the vertical direction. One end of a main rope 105 is attached to the car 102, and the other end of the main rope 105 is attached to the counterweight 103. The main rope 105 is stretched over the drive sheave 104a of the drive mechanism 104 so that the car 102 and the counterweight 103 are moved up and down in directions opposite to each other. That is, the elevator 101 is a so-called fishing bottle type elevator. In this way, the main rope 105 is moved by the hoisting machine of the drive mechanism 104, thereby raising and lowering the car 102 and the counterweight 103 in a fishing bottle manner.

  As shown in FIG. 1, the drive mechanism 104 is provided in, for example, a machine room provided in the upper part of the hoistway 100 or an upper part in the hoistway 100, and a known hoisting machine and a main rope 105 are spanned. And a drive sheave 104a that is rotationally driven by a hoisting machine. The driving mechanism 104 moves the main rope 105 in the hoistway 100 and moves the car 102 and the counterweight 103 up and down by rotating the driving sheave 104 a by the hoisting machine.

  The control panel 106 is, for example, a device provided in the hoistway 100 or the like, and is an arithmetic device including a RAM, a ROM, a CPU, an input / output port, and a storage device (not shown). The control panel 106 is connected to a destination floor registration device in the car 102, a call registration device provided on each floor 110, a drive mechanism 104, and the like, and performs operation control of the entire elevator 101. The control panel 106 is connected to a destination floor registration device in the car 102 via a tail cord 107 or the like. The tail cord 107 includes, for example, a plurality of wirings for supplying signals and electric power, and a covering material that collectively encloses the plurality of wirings, and is formed in a belt shape having a flat rectangular cross section. The tail cord 107 has one end 107 a attached to the bottom surface of the car 102 and the other end 107 b attached to the control panel 106, and the center portion is bent in a U shape when viewed from the side in the hoistway 100. ing. When the car 102 is moved up and down, the tail cord 107 is repeatedly bent or stretched at the center.

  A plurality of wires of the tail cord 107 are connected to a destination floor registration device or the like in the car 102 at the other end 107b of the tail cord 107. The covering material of the tail cord 107 changes its bending difficulty (rigidity) due to a temperature change or the like.

  The attachment structure 1 is a structure for attaching the one end 107 a of the tail cord 107 to the bottom surface of the car 102. As shown in FIG. 2, the mounting structure 1 includes a tail cord hanger 10, a tail cord hitch 20, and the like. The tail cord hanger 10 is obtained, for example, by forming a round bar made of metal having a diameter of 50 mm into a square shape. As shown in FIG. 3, the tail cord hanger 10 includes a lower horizontal portion 11 that is parallel to the horizontal direction and located below, and an upper horizontal portion 12 that is parallel to the horizontal direction and located above the lower horizontal portion 11. And a vertical connecting portion 13 that connects the lower horizontal portion 11 and the upper horizontal portion 12. In the present embodiment, the upper horizontal portion 12 is divided into two at the center.

  In the tail cord hanger 10, one end portion 107 a of the tail cord 107 is wound around the lower horizontal portion 11 in two. In the tail cord hanger 10, the overlapping portions of the one end portion 107a of the tail cord 107 are fixed by the fixing bracket 30, and the one end portion 107a of the tail cord 107 is attached. The tail cord hanger 10 is formed to have a vertical length of 500 mm and a width of 500 mm.

  The tail cord hitch 20 is attached to the bottom surface of the car 102 and is formed in a horizontally-long rectangular box shape when viewed from the front of the entrance 102b of the car 102. For example, the tail cord hitch 20 is formed to have a width of 1000 mm, a depth of 500 mm, and a height of about 300 mm when viewed from the front of the car 102. The tail cord hitch 20 includes an attachment changing portion 21 for attaching the one end portion 107a to the car 102 so that the distance between the one end portion 107a attached to the car 102 of the tail cord 107 and the inner wall surface 100a of the hoistway 100 can be changed. That is, the attachment changing portion 21 can change the horizontal distance between the inner wall surface 100 a of the hoistway 100 and the one end portion 107 a of the tail cord 107. The inner wall surface 100a referred to in the present invention refers to the inner wall surface 100a closest to the other end 107b connected to the control panel 106 of the tail cord 107 among the inner wall surfaces 100a forming the hoistway 100. An inner wall surface 100 a that positions the tail cord 107 between the inner wall 102 and the terminal 102.

  The attachment changing portion 21 is formed in a groove that is recessed from the surface of the tail cord hitch 20 and passes the upper horizontal portion 12 of the tail cord hanger 10 inward. As shown in FIG. 2, the attachment changing unit 21 includes a horizontal support portion 21a, a first inclined support portion 21b (corresponding to an inclined support portion), and a second inclined support portion 21c (corresponding to an inclined support portion). ing.

  The horizontal support portion 21a extends in parallel with the horizontal direction. The horizontal support portion 21a passes the upper horizontal portion 12 of the tail cord hanger 10 inward, and supports the upper horizontal portion 12 so as to be movable in the horizontal direction. That is, the horizontal support portion 21a supports the one end portion 107a of the tail cord 107 so as to be movable in the horizontal direction so that the distance between the one end portion 107a and the inner wall surface 100a of the hoistway 100 can be changed.

  The inclined support portions 21b and 21c are connected to the end portion of the horizontal support portion 21a, and are inclined with respect to the horizontal direction and the vertical direction in a direction toward the upper side gradually away from the horizontal support portion 21a. The inclined support portions 21b and 21c pass the upper horizontal portion 12 of the tail cord hanger 10 inward, and support the upper horizontal portion 12 so as to be movable. That is, the inclined support portions 21b and 21c support the one end portion 107a of the tail cord 107 so as to be gradually movable upward as the distance from the horizontal support portion 21a increases. The first inclined support portion 21b is disposed on the side farther from the inner wall surface 100a than the horizontal support portion 21a. The second inclined support portion 21c is disposed closer to the inner wall surface 100a than the horizontal support portion 21a. The angle β formed between the horizontal direction of the first inclined support portion 21b and the angle α formed between the horizontal direction of the second inclined support portion 21c is determined by the degree of change in rigidity of the tail cord 107 due to temperature change.

  In the elevator 101, when the car 102 is stopped, as shown in FIG. 4, the tail cord hanger 10, that is, one end portion 107 a of the tail cord 107 is positioned in the horizontal support portion 21 a of the attachment changing portion 21. In the elevator 101, when the temperature of the elevator car 102 is raised and lowered, the rigidity of the tail cord 107 increases. In this case, as shown by a solid line in FIG. 5, the radius of curvature of the center portion of the tail cord 107 is larger than that in the case shown in FIG. Then, the tail cord 107 does not approach the inner wall surface 100a as shown by a two-dot chain line in FIG. 5, and the tail cord hanger 10, that is, one end 107a of the tail cord 107 is attached to the attachment changing portion 21 as shown by a solid line in FIG. The tail cord 107 is parallel to the inner wall surface 100a except for the curved portion at the center, which is located in the first inclined support portion 21b.

  Further, in the elevator 101, when the temperature of the elevator car 102 is raised and lowered, the rigidity of the tail cord 107 becomes low. In this case, as indicated by a solid line in FIG. 6, the radius of curvature of the center portion of the tail cord 107 is smaller than that indicated by the two-dot chain line in FIG. Then, as shown by a solid line in FIG. 6, the tail cord hanger 10, that is, one end portion 107 a of the tail cord 107 is positioned in the second inclined support portion 21 c of the attachment changing portion 21, except for a curved portion at the center portion. The tail cord 107 is parallel to the inner wall surface 100a.

  Further, in the elevator 101, when the car 102 that is moving up and down is about to stop, the one end 107a of the tail cord 107 tends to approach the car 102, and the radius of curvature at the center of the tail cord 107 tends to increase. Then, as indicated by a solid line in FIG. 5, the tail cord hanger 10, that is, one end portion 107 a of the tail cord 107 is located in the first inclined support portion 21 b of the attachment changing portion 21.

  Further, in the elevator 101, when the car 102 stops, the inclined support portions 21b and 21c are inclined as described above, so that the tail cord hanger 10, that is, one end portion 107a of the tail cord 107 is horizontally supported by the attachment changing portion 21. Located in the portion 21a.

  According to the mounting structure 1 according to the embodiment, since the mounting changing portion 21 that can change the distance between the one end portion 107a of the tail cord 107 and the inner wall surface 100a is provided, the temperature condition changes and the tail cord 107 changes. When the rigidity of the first end portion 107a changes, the distance between the one end 107a and the inner wall surface 100a can be changed. And the attachment structure 1 can change the curvature radius of the center part of the tail cord 107. For this reason, the mounting structure 1 can make the tail cord 107 parallel to the inner wall surface 100a as much as possible even when the temperature changes, and the tail cord 107 is brought into contact with the inner wall surface 100a of the hoistway 100 when the car 102 is raised and lowered. Contact can be suppressed. Therefore, the mounting structure 1 can suppress the generation of abnormal noise and vibration when the car 102 is raised and lowered.

  Further, according to the attachment structure 1, the attachment changing portion 21 includes the horizontal support portion 21a that supports the one end portion 107a of the tail cord 107 so as to be movable in the horizontal direction. The distance between the one end 107a of the tail cord 107 and the inner wall surface 100a can be changed smoothly. And the attachment structure 1 can change the curvature radius of the center part of the tail cord 107 smoothly. Therefore, the attachment structure 1 can reliably suppress the tail cord 107 from coming into contact with the inner wall surface 100a of the hoistway 100 when the car 102 is elevated.

  Furthermore, according to the attachment structure 1, the attachment changing portion 21 includes the inclined support portions 21b and 21c connected to the end portion of the horizontal support portion 21a, so that one end portion 107a of the tail cord 107 is connected to the inclined support portions 21b and 21c. Even if it is supported, it is biased toward the horizontal support portion 21a by its own weight. The attachment structure 1 includes a first inclined support portion 21b connected to the side of the horizontal support portion 21a away from the inner wall surface 100a and a second inclined support portion 21c connected to the inner wall surface 100a as inclined support portions. For this reason, the attachment structure 1 quickly returns the one end portion 107a of the tail cord 107 to the horizontal support portion 21a even when the rigidity of the tail cord 107 is changed from a high state to a low state or from a low state to a high state. be able to. Therefore, the mounting structure 1 can smoothly change the radius of curvature of the center portion of the tail cord 107 even if the rigidity of the tail cord 107 changes.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Tail cord attachment structure 21 Mounting change part 21a Horizontal support part 21b 1st inclination support part (inclination support part)
21c 2nd inclination support part (inclination support part)
DESCRIPTION OF SYMBOLS 100 Hoistway 100a Inner wall surface 101 Elevator 102 Car 107 Tail cord 107a One end

The elevator tail cord attachment structure of the embodiment is such that the tail cord is attached to a car that is provided so as to be movable up and down in a hoistway of a building. The tail cord attachment structure includes an attachment changer. The attachment changer attaches one end of the tail cord to the car. The attachment changing portion includes a horizontal support portion, a first inclined support portion, and a second inclined support portion. The horizontal support portion supports one end portion so as to be movable in the horizontal direction. The first inclined support portion is connected to the horizontal support portion and is disposed on the side farther from the inner wall surface than the horizontal support portion, and supports the one end portion in a direction gradually moving upward as it is separated from the horizontal support portion. . The second inclined support portion is connected to the horizontal support portion and is disposed closer to the inner wall surface than the horizontal support portion, and supports the one end portion in a direction gradually moving upward as it moves away from the horizontal support portion. The attachment changing portion is stopped after the one end portion is moved from the horizontal support portion to the first inclined support portion or the second inclined support portion by the urging force corresponding to the radius of curvature based on the rigidity of the tail cord, and the curved portion of the tail cord is stopped. Adjust the posture of the other parts to the vertical posture.

The plurality of wires of the tail cord 107 are connected to a destination floor registration device in the car 102 at one end 107 a of the tail cord 107. The covering material of the tail cord 107 changes its bending difficulty (rigidity) due to a temperature change or the like.

Claims (4)

In the elevator tail cord mounting structure, which attaches the tail cord to a car that can be moved up and down in the hoistway of the building,
An attachment changing part for attaching one end of the tail cord to the car;
The attachment changing portion can change a distance between an inner wall surface where the tail cord is positioned and the one end portion of the tail cord between the carriages of the hoistway. Mounting structure. The elevator tail cord attachment structure according to claim 1, wherein the attachment changing portion includes a horizontal support portion that supports the one end portion so as to be movable in a horizontal direction. The attachment changing part is
3. The elevator according to claim 2, further comprising an inclined support portion that is connected to the horizontal support portion and that supports the one end portion in a direction that gradually moves upward as the distance from the horizontal support portion increases. Tail cord mounting structure. As the inclined support portion, a first inclined support portion disposed on the side farther from the inner wall surface than the horizontal support portion, and a second inclined support portion disposed closer to the inner wall surface than the horizontal support portion. The elevator tail cord attachment structure according to claim 3, wherein the elevator tail cord attachment structure is provided.

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