JPH07228448A - Compensating rope fitting structure for elevator - Google Patents

Abstract

PURPOSE:To utilize a common floor board even when the size of a tail code differs. CONSTITUTION:A presser metal 7 is provided below a hitch board 6 and a beam 5A, and it is fastened with a bolt 8. A claw section 7c is formed on the presser metal 7 at the portion kept in contact with the lower face of the hitch board 6, and a press section 7d is formed at the portion kept in contact with the lower face of the beam 5A. When the bolt 8 is fastened, the hitch board 6 can be fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator compensator rope mounting structure.

[0002]

2. Description of the Related Art FIG. 4 (a) is a diagram showing a conventional 1: 1 single-wrap type roping elevator and a hoistway in which the elevator is installed. In FIG. 4 (a), a hoisting machine (not shown) is placed on a floor 22 of a machine room 21 provided above the hoistway 20, and the sheave 11 is cantilevered on the hoisting machine. Is projected on.

An upper end of a main rope 13 is wound around the sheave 11, and on one side of the main rope 13, a hitch plate (not shown in detail) at the center of an upper beam fixed to a vertical frame 14 of the car 10 is shown. The basket 10 is suspended via a shackle rod and a coil spring.

On the other hand, the other side of the main rope 13 is suspended in the hoistway via the deflecting sheave 12, and a counterweight 15 is suspended at the lower end of the hoistway. In this counterweight 15,
One side of the compensating rope 17 is locked, and the other side of the compensating rope 17 is locked to a hitch plate 6 described later shown in FIGS. 4 (b) and 4 (c). Further, the intermediate portion of the compensating rope 17 is wound around a tension vehicle 18 standing in a pit of the hoistway 21.

Further, in the lower part of the car 10, due to the structure of the floor of the car 10, in the plan view (not shown) of the car 10 shown in FIG. 4, it is eccentric from the center line of the pair of vertical frames 14 in the direction orthogonal to the plane of the drawing. One end of the tail cord 16 is locked at the position, and the other end of the tail cord 16 is connected to a control panel (not shown) of the machine room 20.

FIG. 4 (b) is an enlarged detailed view showing the locking portion of the compensating rope 17 shown in FIG. 4 (a), and FIG. 4 (c) is
It is a right side enlarged view of FIG.4 (b). 4 (b) and FIG.
In (c), on both sides of the lower ends of the pair of vertical frames 14 made of channel steel, the bottom beams 3A, which are also made of channel steel,
3B is provided in a square shape in the direction orthogonal to the paper surface in FIG. 4B and is welded to the vertical frame 14.

The floor frame 2 is placed on the upper surfaces of the bottom beams 3A, 3B, and the beams 5A, 5B made of small channel steel are symmetrical on the lower surface of the floor frame 2 in the direction orthogonal to the plane of the drawing. Are provided parallel to each other and are welded to the floor frame 2, respectively.

A hitch plate 6 is placed on the lower upper surfaces of the beams 5A and 5B. The hitch plate 6 is formed in the fastening holes formed at the four corners of the hitch plate 6 and the beams 5A and 5B. It is fastened to the beams 5A and 5B through a bolt 8 inserted in the bolt hole and an inclined washer (not shown) inserted between the hitch plate 6 and the beams 5A and 5B.

The hitch plate 6 is provided with a plurality of rope through holes in a zigzag pattern symmetrically with respect to the center of the hitch plate 6, and the compensating ropes are inserted through the rope through holes from below. The compensating ropes are fixed to rope sockets (not shown) vertically provided on the upper surface of the hitch plate 6.

In the thus constructed elevator, the weight of the car 10 is balanced and the weight of the weight 15 is made the same so that the power for driving the main ropes 13 via the sheave 11 is minimized to save energy. Has been.

Even so, when the car 10 gets down to the starting floor, the length of the main rope 13 from the car 10 to the sheave 11 becomes the longest, whereas the balance weight 15 to the sheave 11 at this time becomes long. Since the length of the main rope 13 up to is the shortest,
The load including the main ropes 13 on the side of the counterweight 15 and the weight 15 becomes unbalanced. The compensating rope 17 is provided to eliminate the imbalance of the load between the car side and the counterweight side due to the position of the car 10.

On the other hand, when attaching the compensating rope 17 to the hitch plate 6, it is attached at a predetermined position determined in balance with the tail cord 16 during the installation work of the elevator. This is because the moment caused by the load applied to the car 10 by the tail cord 16 and the moment applied by the compensating rope 17 to the car 10 are equalized so that the pressing force of the pair of rollers provided on the upper and lower sides of the car is uniform. Is.

Therefore, in order to correspond to the tail cord 16 in which the number of electric wires differs depending on the car assembled using the same floor frame 2, holes for tightening the bolts 8 are continuously provided in the floor frame 2, The location of the hitch plate 10 is changed according to the type of code 16.

[0014]

However, in the elevator constructed as described above, even if the floor frame 2 has the same outer shape, the bolt holes for fixing the hitch plate 6 each time the type of the tail cord 16 changes. Must be processed into beams 5A and 5B. Then, since the bolt holes are continuous, not only the strength of the beams 5A and 5B is lowered, but also a worker may mistake the bolt holes during the installation work.

Therefore, in order to prevent the strength of the beams 5A and 5B from decreasing, it is conceivable to use a channel steel having a large size, but since the weight of the car increases, the capacity of the drive motor of the hoisting machine (not shown) also increases. I have to increase. Further, if the bottom plate 2 having the beam 5A, 5B of the bolt hole corresponding to the tail cord 16 is used for each type of the tail cord 16, not only the type of the bottom plate 2 is increased, but also if it is manufactured according to the specifications, the delivery time is short. It may not be possible to respond.

Therefore, an object of the present invention is to easily cope with different types of tail cords without increasing the types of bottom plates, and to easily cope with various specifications. To get the mounting structure.

[0017]

The invention according to claim 1 is provided with a fixed bone horizontally provided on a lower portion of a car floor, and a hitch plate fixed to the fixed bone to which an end of a compensating rope is fixed. In the elevator compensator rope mounting structure,
It is characterized in that a fastener provided through the fixed bone and a retainer through which the fastener is inserted to press the hitch plate against the fixed bone are provided.

Further, the invention according to claim 2 is provided with a pair of beams laterally provided in the lower part of the car floor, and a hitch plate fixed to the upper surface of the lower part of the beams to which the end of the compensating rope is fixed. In an elevator compensator rope mounting structure, a fastener provided through a lower portion of the beam and a retainer for inserting the fastener and pressing the hitch plate against the upper surface of the lower portion of the beam with the fastener are provided. To do.

Further, the invention according to claim 3 is provided with a pair of beams laterally provided on the lower part of the car floor, and a hitch plate fixed to the upper surface of the lower part of the beams and fixed to the end of the compensating rope. In the elevator compensating rope mounting structure, a fastener penetrating the lower part of the beam and this fastener is inserted so that one side abuts the lower surface of the hitch plate and the other side abuts the lower surface of the beam, and the hitch plate is fastened with the fastener. It is characterized in that a pressing member for pressing the lower surface of the beam is provided.

[0020]

According to the invention of claim 1, the compensator rope is set at an arbitrary position by the hitch plate fixed to an arbitrary position of the fixed bone by the fastener and the pressing plate.

According to the second aspect of the invention,
The compensator rope is set at an arbitrary position by a hitch plate fixed to an arbitrary position on the lower upper surface of the beam by a fastener and a holding plate.

Further, in the invention as set forth in claim 3, the compensator rope is attached by a fastener and a retainer plate which is inserted through the fastener and has one side abutting against the lower surface of the hitch plate and the other side abutting against the lower surface of the beam. The position is set to an arbitrary position.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator compensating rope mounting structure of the present invention will be described below with reference to the drawings. Figure 1
FIG. 4 is a diagram showing a structure for mounting an elevator compensating rope according to the present invention, which is a diagram corresponding to FIG.
FIG. 2 is a right side view of FIG. 1 and is also a view corresponding to FIG. 4 (c).

In FIGS. 1 and 2, the upper end of the compensating rope 17 is inserted into the center of the hitch plate 6 from below,
It is fixed with a rope socket 23. Further, the compensating rope 17 is sandwiched by, for example, three wooden cleats 24 in the lower portion of the hitch plate 6, and then sandwiched by a pair of cleats 25 below the cleat 24.

In addition, bolts 8 are inserted into the four corners of the hitch plate 6 in a plan view (not shown), and under the bolts 8, press fittings 7 shown in detail in an enlarged view of FIG. 3 are inserted in advance. Has been done. An end plate 4 is welded to the lower end of the vertical frame 1.

That is, FIG. 3 (b) is an enlarged view showing a fixing portion between the beam 5A and the left side of the hitch plate 6 shown in FIG. 1. The lower end of the bolt 8 is made of high carbon produced by die forging. The metal fitting 7 made of steel is inserted in advance, and the end of the beam 5A is fastened with a nut 9 or the like.

3 (a), 3 (b) and 3 (c), a bolt hole 7a is formed in the center of the holding metal fitting 7, and a bell-shaped bell is formed around the bolt hole 7a on the lower surface of the holding metal fitting 7. Is formed with a flat concave portion 7b.

Further, in FIG. 3 (b), the holding metal fitting 7
A claw portion 7c is projectingly provided on the upper left end of the claw portion 7, a flat portion 7e is formed on the left side of the claw portion 7c, and a holding portion 7d is formed on the left end of the holding metal fitting 7.

In the elevator compensating rope mounting structure thus configured, for example, the position of the end of the hitch plate 6 on the lower surface of the beam 5A, which indicates the position corresponding to the weight of the tail cord connected to the car. By providing the mark indicating "," the hitch plate 6 can be fixed at an arbitrary position by aligning the end portion of the hitch plate 6 with the mark and tightening the bolt 8.

Therefore, regardless of the tail cord, the floor board can be used in common, mass production is possible, production is easy, and a small type of stock can be used, so that a short delivery time can be dealt with. The holding metal fitting 7 shown in FIG. 3 does not need to be newly manufactured as a dedicated product for fixing the hitch plate 6, and for example, a rail clip for fixing a guide rail vertically fixed to the hoistway is diverted. You may.

Further, in the elevator compensating rope mounting structure thus constructed, the beams 5A and 5B are
Since it is not necessary to process a plurality of bolt holes for fixing the hitch plate 6 to the lower part of the plate, and welding of the inclined washer to the upper surfaces of the lower parts of the beams 5A and 5B is not necessary, the manufacturing period can be shortened. It is also possible to eliminate the possibility that the strength will decrease due to the continuous bolt holes.

Further, the fixing position of the compensating rope can be changed from the intermittent position by the movement of the bolt hole to the continuous position, and the compensating rope can be fixed at the optimum position, so that the contact pressure of the guide roller can be made uniform. Even in a high-speed elevator, vibration and noise can be minimized, maintenance intervals such as guide roller replacement can be extended, and maintenance effort can be reduced.

[0033]

As described above, according to the invention of claim 1,
In a compensating rope mounting structure for an elevator, which includes a fixed bone laterally provided in a lower portion of a car floor and a hitch plate fixed to the fixed bone and fixed to an end of the compensating rope, a fastener penetrating the fixed bone. And a fastener that pushes the hitch plate against the fixed bone with this fastener is inserted, the hitch plate fixed at an arbitrary position of the fixed bone by the fastener and the retainer plate, Since the mounting position of is set, it is possible to easily cope with different types of tail cords without increasing the number of types of bottom plate, and an elevator compensator rope mounting structure that can easily support various specifications. Obtainable.

According to the second aspect of the present invention, there are provided a pair of beams laterally provided in the lower part of the car floor, and a hitch plate fixed to the upper surface of the lower part of the beams and fixed to the end of the compensating rope. In the compensator rope mounting structure of the provided elevator, by providing a fastener penetrating to the lower part of the beam, and by providing a presser tool that is inserted by this fastener and presses the hitch plate against the upper surface of the lower part of the beam, The compensator rope is set at the attachment position by the hitch plate fixed to the position of the lower part of the beam on the fastener and the holding plate, so it is easy to handle different types of tail cords without increasing the types of bottom plate. Therefore, it is possible to obtain an elevator compensating rope mounting structure that can easily meet various specifications.

Further, according to the invention of claim 3,
In a compensator rope installation structure for an elevator equipped with a pair of beams that are installed horizontally under the car floor and a hitch plate that is fixed to the upper surface of the lower part of this beam and the end of the compensator rope is fixed, it is installed through the bottom of the beam. And a retainer that is inserted through the fastener and one side abuts the lower surface of the hitch plate and the other side abuts the lower surface of the beam so that the fastener presses the hitch plate against the lower upper surface of the beam. Since the fastener and the holding plate that is inserted through the fastener and one side contacts the lower surface of the hitch plate and the other side contacts the lower surface of the beam, the mounting position of the compensating rope is set, so that the type of the bottom plate is not increased. Even if the types of the tail cords are different, it is possible to easily deal with it, and it is possible to obtain an elevator compensator rope attachment structure that can easily deal with various specifications.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of an elevator compensating rope attachment structure of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is an enlarged view showing a main part of the compensating rope attachment structure of the present invention, (b) is a front view, (a) is a left side view of (b), and (c) is a bottom view of (b).

FIG. 4 is a view showing a conventional compensator rope mounting structure for an elevator, FIG.
Is a front view showing the compensator rope attachment part, (c) is
The right view of (b).

[Explanation of symbols]

1 ... Vertical frame, 2 ... Floor frame, 3A, 3B ... Bottom beam, 4 ... End plate, 5
A, 5B ... Beam, 6 ... Hitch plate, 7 ... Holding metal fitting, 8 ...
Bolts, 9 ... Nuts, 10 ... Baskets, 11 ... Sheaves, 12 ... Deflection sheaves, 13 ... Main ropes, 14 ... Balancing weights, 16 ... Tail cords, 17 ... Compensating ropes.

Claims (3)

[Claims] 1. A compensating rope mounting structure for an elevator, comprising: a fixed bone laterally provided in a lower part of a car floor; and a hitch plate fixed to the fixed bone and fixed to an end of the compensating rope. A compensating rope attachment structure for an elevator, comprising: a penetrating fastener; and a retainer that is inserted through the fastener to press the hitch plate against the fixed bone. 2. A compensating rope mounting structure for an elevator, comprising: a pair of beams laterally provided in a lower portion of a car floor; and a hitch plate fixed to an upper surface of a lower portion of the beam to which an end portion of the compensating rope is fixed. An elevator compensator rope attachment, characterized in that: a fastener penetrating the lower portion of the beam and a retainer for inserting the fastener and pressing the hitch plate against the upper surface of the lower portion of the beam by the fastener are provided. Construction. 3. A compensator rope mounting structure for an elevator, comprising: a pair of beams laterally installed in a lower part of a car floor; and a hitch plate fixed to an upper surface of a lower part of the beam to fix an end of the compensator rope. A fastener penetrating the lower part of the beam, and the fastener is inserted so that one side abuts the lower surface of the hitch plate and the other side abuts the lower surface of the beam, and the fastener is used to move the hitch plate to the lower part of the beam. An elevator compensator rope mounting structure, characterized in that a presser for pressing the upper surface is provided.