JP7105906B2 - Elevator and Compen rope support mechanism - Google Patents

Description

The present invention relates to an elevator and compen rope support mechanism having a compen rope connected to a car and a counterweight.

In conventional elevators, when the moving distance of the car and the counterweight in the vertical direction increases, the length of the main rope that connects the car and the counterweight from the hoist to the car changes depending on the position of the car. do. As a result, due to the weight of the main rope itself, the difference between the weight of the main rope on the side of the car that is applied to the hoist and the weight on the side of the counterweight increases. A compensating rope is provided to reduce the difference between the weight of the main rope on the car side and the weight on the counterweight side.

Ropes used in elevators, such as compen ropes and main ropes, are constructed by twisting strands around a core steel, so that they rotate in the circumferential direction when force is applied in the pulling direction. As a technique for preventing such rotation of the rope, for example, a technique as described in Patent Document 1 has been proposed.

Patent Literature 1 describes a thimble rod anti-rotation mechanism including a thimble rod and a penetrating member. The penetrating member has a penetrating portion formed with a through hole through which the thimble rod penetrates, and a rod rotation restricting portion. When the thimble rod passing through the through-hole rotates around the axis of the thimble rod, the rod rotation restricting portion contacts the peripheral surface of the thimble rod and restricts the rotation of the thimble rod beyond a predetermined angle. do. Further, Patent Document 1 describes that the thimble rod is formed such that the distance from the axis of the thimble rod to the peripheral surface of the thimble rod varies depending on the position in the circumferential direction.

Babbitt type and wedge type are used as the method for supporting the ends of the rope. In the Babbitt system, a rope socket that holds the end of the rope is preheated and molten metal is poured into the rope socket to fix the rope end. The Babbitt method requires a high level of skill, and the finish varies depending on the skill level of the operator. Therefore, in recent years, there is a demand for the wedge type, which requires less skill than the Babbitt type.

FIG. 5 is a perspective view showing a structure for supporting an end of a compen rope by a wedge type in a conventional example.
As shown in FIG. 5, a conventional support mechanism 300 includes a wedge member 301, a rope socket 302, a mounting plate 303 fixed to a car or counterweight, a rod 305, and a connecting pin 306. there is

An end of the compensating rope 131 is wound around the wedge member 301 . The end of the compen rope 131 wound around the wedge member 301 is attached to the rope socket 302 . Also, the ends of the compensating rope 131 are overlapped by being folded back and fastened by a rope clip 304 . Rope socket 302 is connected to rod 305 via connecting pin 306 . The rod 305 is inserted into a mounting hole provided in the mounting plate 303 from below in the vertical direction and fixed to the mounting plate 303 with a fixing bolt 307 .

Japanese Patent Application Laid-Open No. 2015-3800

However, in the conventional support mechanism shown in FIG. 5, since a part of the rope socket 302 and the rod 305 protrude upward in the vertical direction from the end of the compensating rope 131, a relatively large installation space is required. was Furthermore, there is a problem that the number of parts increases due to the rod and the joint pin that connects the rod and the rope socket.

In consideration of the above problems, it is an object of the present invention to provide an elevator and a compensation rope support mechanism that can prevent the rotation of the compensation rope, reduce the number of parts, and save space. .

In order to solve the above problems and achieve the object, an elevator includes a car, a counterweight, a compensation rope, and a compensation rope support mechanism. The car moves up and down in a hoistway provided in the building structure. The counterweight is connected to the car via a main rope. One end of the compen rope is connected to the car, and the other end opposite to the one end is connected to the counterweight. The compen rope support mechanism connects one end of the compen rope to the car or the other end to the counterweight.
The compen rope support mechanism includes a wedge member, a rope socket and a mounting plate. One end or the other end of the compen rope is wound around the wedge member. The rope socket is formed with an insertion hole into which one end or the other end of the compen rope wound around the wedge member is inserted. The mounting plate has a fitting hole into which a part of the lower part of the rope socket in the vertical direction is inserted from above in the vertical direction and a part of the rope socket is fitted, and is installed on the car or the counterweight. .

Moreover, the compensation rope support mechanism mentioned above is applied to the compensation rope support mechanism.

According to the elevator and compensating rope support mechanism having the above configuration, rotation of the compensating rope can be prevented, the number of parts can be reduced, and space can be saved.

1 is a schematic configuration diagram showing an elevator according to a first embodiment; FIG. It is a perspective view which shows the car side end part in the compensation rope of the elevator concerning 1st Embodiment. It is a sectional view showing a compensation rope support mechanism concerning a 1st embodiment. It is a sectional view showing a compensation rope support mechanism concerning a 2nd example of an embodiment. It is a perspective view which shows the car side end part in the compensation rope of the elevator concerning a conventional example.

Embodiments of the elevator and compensating rope support mechanism will be described below with reference to FIGS. 1 to 4. FIG. In addition, the same code|symbol is attached|subjected to the member which is common in each figure.

1. First embodiment example 1-1. Configuration of Elevator First, the configuration of an elevator according to a first embodiment (hereinafter referred to as "this example") will be described with reference to FIG.
FIG. 1 is a schematic configuration diagram showing a configuration example of an elevator of this example.

As shown in FIG. 1, the elevator 1 of this example is provided in a hoistway 110 formed in a building structure. The elevator 1 moves up and down in a hoistway 110 and includes a car 120 for carrying people and luggage, a main rope 130 , a counterweight 140 and a hoist 100 . A machine room 160 is provided at the top of the hoistway 110 . The elevator 1 also includes a plurality of compensating ropes 131 , a compensating pulley 132 around which the compensating ropes 131 are wound, a compensating rope support mechanism 10 that supports the compensating ropes 131 , and an adjusting mechanism 190 .

The hoisting machine 100 is arranged in the machine room 160 and raises and lowers the car 120 by winding the main rope 130 around it. In the vicinity of the hoisting machine 100, a deflection pulley 150 on which the main rope 130 is mounted is provided.

One axial end of the main rope 130 is connected to the top of the car 120 , and the other axial end of the main rope 130 is connected to the top of the counterweight 140 . Therefore, the car 120 is connected to the counterweight 140 via the main rope 130 .

By driving the hoisting machine 100, the car 120 moves up and down in the hoistway 110 along the car-side guide rail (not shown), and the counterweight 140 moves along the weight-side guide rail (not shown) in the hoistway. It moves up and down within 110 . The direction in which the car 120 and the counterweight 140 move up and down is defined as the vertical direction. Moreover, the vertical direction is parallel to the vertical direction.

Further, in the elevator 1 , when the moving distance of the car 120 and the counterweight 140 in the vertical direction increases, the length of the main rope 130 from the hoist 100 to the car 120 changes depending on the position of the car 120 . As a result, due to the weight of the main rope 130 itself, the difference between the weight of the main rope 130 on the car 120 side with respect to the hoisting machine 100 and the weight on the counterweight 140 side increases. Therefore, in the elevator 1 of this example, a compensating rope 131 is provided in order to reduce the difference between the weight of the main rope 130 on the car 120 side and the weight on the counterweight 140 side.

Compen rope 131 is connected to connect car 120 and counterweight 140 . One end 131a of the compensation rope 131 is connected to the machine beam 121 provided at the lower part of the car 120 in the vertical direction via the compensation rope support mechanism 10, which will be described later. Further, the other end 131b of the compensating rope 131 opposite to the one end 131a is connected to the side surface of the counterweight 140 via the adjustment mechanism 190 . The adjustment mechanism 190 has an elastic member such as a coil spring and adjusts the tension of the compen rope 131 .

The compensating rope 131 hangs down from the car 120 and the counterweight 140 toward the bottom of the hoistway 110 . An intermediate portion 131 c of the compensating rope 131 that hangs down below the hoistway 110 is wound around a compensating pulley 132 . The compensation pulley 132 is rotatably arranged in a pit provided below the hoistway 110 in the vertical direction.

1-2. Compensation Rope Support Mechanism Next, the configuration of the compensation rope support mechanism 10 will be described with reference to FIGS. 2 and 3. FIG.
FIG. 2 is a perspective view showing one end portion 131a of the compensation rope 131, and FIG. 3 is a sectional view showing the compensation rope support mechanism 10. As shown in FIG.

As shown in FIGS. 2 and 3, the compen rope support mechanism 10 has a wedge member 11, a rope socket 12, a mounting plate 13, and a rope clip 14. As shown in FIG.

The wedge member 11 is formed in a substantially triangular shape, and one end portion 131a of a compensating rope 131 is wound around the wedge member 11 . One end 131 a of the compensating rope 131 is folded back by being wound around the wedge member 11 . One end 131 a of the compensating rope 131 is folded back to be overlapped and fastened by the rope clip 14 .

The rope socket 12 is formed in a quadrangular prism shape. The rope socket 12 is formed with an insertion hole 16 penetrating vertically. As shown in FIG. 3, the insertion hole 16 is formed in a tapered shape in which the opening diameter continuously decreases from the top to the bottom of the rope socket 12 in the vertical direction. This prevents the one end 131 a of the compensating rope 131 inserted into the insertion hole 16 and the wedge member 11 from slipping out of the insertion hole 16 .

A fitting protrusion 17 is formed at the lower end portion of the rope socket 12 in the vertical direction. The fitting protrusion 17 protrudes downward in the vertical direction from the lower surface portion 12 a of the lower end portion of the rope socket 12 . The fitting protrusion 17 is formed in a rectangular shape. The horizontal projection area of the fitting protrusion 17 is set smaller than the horizontal projection area of the rope socket 12 .

Further, the fitting projection 17 is formed with an insertion hole 17a penetrating therethrough in the vertical direction. The insertion hole 17 a communicates with the insertion hole 16 of the rope socket 12 . One end 131 a of a compensating rope 131 wound around the wedge member 11 is inserted into the insertion hole 16 of the rope socket 12 and the insertion hole 17 a of the fitting projection 17 . Thereby, one end 131 a of the compensating rope 131 is held by the rope socket 12 and the wedge member 11 .

A rope socket 12 that holds one end 131 a of the compensating rope 131 is attached to the mounting plate 13 . As shown in FIG. 1, the mounting plate 13 is fixed to a machine beam 121 provided at the bottom of the car 120. As shown in FIG.

As shown in FIGS. 2 and 3, the mounting plate 13 has a plurality of fitting holes 18 formed therein. The number of fitting holes 18 corresponds to the number of compen ropes 131 to be installed. The fitting hole 18 is formed by vertically penetrating the mounting plate 13 . The opening shape of the fitting hole 18 corresponds to the shape of the fitting projection 17 and is formed in a substantially rectangular shape.

A fitting protrusion 17 that is a part of the rope socket 12 is inserted into the fitting hole 18 from above in the vertical direction, and the fitting protrusion 17 fits into the fitting hole 18 . The lower surface portion 12a of the rope socket 12 contacts the upper surface portion 13a of the mounting plate 13 in the vertical direction. Thereby, one end 131 a of the compensating rope 131 can be fixed to the lower part of the car 120 via the rope socket 12 and the mounting plate 13 . Since the compensating rope 131 is pulled downward in the vertical direction by a predetermined tension, the rope socket 12 and one end 131 a of the compensating rope 131 do not slip out of the mounting plate 13 .

An opening 19 is also formed in the mounting plate 13 . The opening 19 is formed by notching from the side surface of the mounting plate 13 to the edge of the fitting hole 18 . One end 131 a of the compensating rope 131 is inserted through the opening 19 . One end 131 a of the compensating rope 131 is inserted into the fitting hole 18 from the outside of the mounting plate 13 through the opening 19 .

The width of the opening 19 in the horizontal direction is set shorter than the length of the fitting protrusion 17 in the horizontal direction. This can prevent the fitting protrusion 17 fitted in the fitting hole 18 from slipping out of the opening 19 .

According to the compensation rope support mechanism 10 of the present example, no other member is installed above the one end 131a of the compensation rope 131 in the vertical direction. Thereby, the vertical length of the compensation rope support mechanism 10 can be shortened, and the space saving of the compensation rope support mechanism 10 can be achieved. Furthermore, since one end 131a of the compensating rope 131 can be fixed to the mounting plate 13 without using fixing bolts, rods, and connecting pins as in the conventional example, the number of parts can be reduced.

Further, in the compen rope support mechanism 10 of this example, the fitting protrusion 17 is fitted into the fitting hole 18, and the fitting protrusion 17 and the fitting hole 18 are formed in a rectangular shape. This can prevent the compensation rope 131 from rotating when a load in the pulling direction is applied to the compensation rope 131 .

In addition, although the example which formed the fitting protrusion 17 in substantially rectangular shape was demonstrated in this example, it is not limited to this. For example, the fitting protrusion 17 may be formed in various shapes such as a hexagonal columnar shape and an elliptical columnar shape. Further, in order to prevent the rotation of the compensation rope 131, the shape of the fitting projection 17 is a shape in which the length from the central axis through which the compensation rope 131 is inserted to the outer periphery is not uniform, such as a square or an ellipse. A shape having different lengths from the central axis to the outer circumference is preferable.

Alternatively, the fitting protrusion 17 may be formed in a columnar shape and provided with a protrusion for stopping rotation on the side surface thereof. The opening shape of the fitting hole 18 is appropriately formed according to the shape of the fitting protrusion 17 .

Further, if the frictional force generated when the fitting projection 17 and the fitting hole 18 are fitted together is greater than the torque generated when the compensating rope 131 rotates, the fitting projection 17 may be formed into a cylindrical shape. .

2. Second Embodiment Next, a compensation rope support mechanism according to a second embodiment will be described with reference to FIG.
FIG. 4 is a cross-sectional view showing a compen rope support mechanism according to a second embodiment.

The compensating rope support mechanism 30 according to the second embodiment differs from the compensating rope support mechanism 10 according to the first embodiment in that the rope socket is fitted to the mounting plate. Therefore, the parts common to the compensating rope support mechanism 10 according to the first embodiment are denoted by the same reference numerals, and overlapping descriptions are omitted.

As shown in FIG. 4 , the compen rope support mechanism 30 has a wedge member 11 , a rope socket 32 , a mounting plate 33 and a rope clip 14 . The rope socket 32 is formed in a substantially quadrangular prism shape. The rope socket 32 is formed with an insertion hole 36 opening in a tapered shape. One end 131 a of a compensating rope 131 wound around the wedge member 11 is inserted into the insertion hole 36 of the rope socket 32 .

The mounting plate 33 is formed with a fitting hole 38, a communication hole 41 communicating with the fitting hole 38, and an opening not shown in the figure. The fitting hole 38 is formed in the upper surface portion 33a of the mounting plate 33, and is formed with a predetermined length from the upper surface portion 33a downward in the vertical direction. The vertical lower portion of the rope socket 32 is fitted into the fitting hole 38 .

A communication hole 41 is continuously formed from the lower end portion of the fitting hole 38 in the vertical direction. The opening area of the communication hole 41 is set smaller than the opening area of the fitting hole 38 . Therefore, a step surface 42 is formed at a portion where the communication hole 41 and the fitting hole 38 are connected. The lower surface portion 32 a of the rope socket 32 fitted in the fitting hole 38 abuts against the stepped surface 42 . Thereby, the one end 131 a of the compensating rope 131 can be fixed to the car 120 via the rope socket 32 and the mounting plate 33 .

Since other configurations are the same as those of the compensating rope support mechanism 10 according to the first embodiment, description thereof will be omitted. The compensation rope support mechanism 30 according to the second embodiment can also provide the same effects as the compensation rope support mechanism 10 according to the first embodiment described above.

In addition, according to the compensation rope support mechanism 10 according to the first embodiment, the fitting projection 17 having a smaller horizontal projected area than the rope socket 12 is formed. The opening area of the joint hole 18 can be reduced. As a result, according to the compensating rope support mechanism 10 according to the first embodiment, the mounting plate 13 in which the fitting hole 18 is formed is larger than the compensating rope support mechanism 30 according to the second embodiment. It is possible to reduce the size of the entire support mechanism.

The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the gist of the invention described in the claims. In the embodiment described above, an example in which the hoisting machine 100 is arranged in the machine room 160 provided at the top of the hoistway 110 has been described, but the present invention is not limited to this. As an elevator, for example, it may be applied to a so-called machine room-less elevator that does not have a machine room in the hoistway.

In addition, in the embodiment described above, one end 131a of the compensation rope 131 on the car 120 side is supported and fixed by the compensation rope support mechanisms 10 and 30 . The other end 131b of the compensating rope 131 on the side of the counterweight 140 is supported and fixed by an adjusting mechanism 190. As shown in FIG.

However, the ends at which the compensating rope support mechanisms 10 and 30 are arranged are not limited to the one end 131a on the car 120 side. For example, one end 131 a of the compensating rope 131 may be supported by the adjusting mechanism 190 and the other end 131 b of the compensating rope 131 may be supported by the compensating rope support mechanisms 10 and 30 . Alternatively, when a mechanism for adjusting tension is installed in the compen pulley 132 or the like, both ends of the compen rope 131 on the car 120 side and the counterweight 140 side may be supported by the compen rope support mechanisms 10 and 30. .

Since the adjustment mechanism 190 requires a spring member or the like for adjusting the tension of the compensating rope 131 , the length in the vertical direction is longer than the compensating rope support mechanisms 10 and 30 . Also, the other end 131b of the compensating rope 131 is connected to the side surface of the counterweight 140 . Therefore, it is preferable to install the adjusting mechanism 190 at the other end 131b of the compensating rope 131, which has a space in the vertical direction.

On the other hand, one end 131 a of the compensating rope 131 is connected to the lower portion of the car 120 . Further, the car 120 moves vertically downward near the pit of the hoistway 110 . When the length of the lower portion of the car 120 is increased, the length of the pit in the hoistway 110 in the vertical direction must be increased.

Therefore, it is preferable to install the compen rope support mechanisms 10 and 30 described above, which can save space in the vertical direction more than the adjustment mechanism 190, at the one end 131a on the car 120 side. The mechanisms 10 and 30 can prevent the vertical length of the pit in the hoistway 110 from increasing.

In this specification, words such as "parallel" and "perpendicular" are used, but these do not strictly mean only "parallel" and "perpendicular", but include "parallel" and "perpendicular". Furthermore, it may be in a "substantially parallel" or "substantially orthogonal" state within the range where the function can be exhibited.

DESCRIPTION OF SYMBOLS 1... Elevator 10, 30... Compen rope support mechanism 11... Wedge member 12, 32... Rope socket 12a, 32a... Lower surface part 13, 33... Mounting plate 14... Rope clip 16, 36... Insertion hole 17... Fitting protrusion 17a... Insertion hole 18. 38... Fitting hole 19... Opening 41... Communication hole 42... Step surface 100... Hoisting machine 110... Hoistway 120... Car , 121 Machine beam 130 Main rope 131 Compensating rope 131a One end 131b Other end 131c Intermediate section 132 Compensating pulley 140 Counterweight 160 Machine room 190 adjustment mechanism

Claims (4)

A car that moves up and down in a hoistway provided in a building structure,
a counterweight connected to the car via a main rope;
a compen rope having one end connected to the car and having the other end opposite to the one end connected to the counterweight;
A compensating rope support mechanism that connects the one end of the compensating rope to the car or connects the other end to the counterweight,
The compen rope support mechanism is
a wedge member around which the one end or the other end of the compen rope is wound;
a rope socket formed with an insertion hole into which the one end or the other end of the compensating rope wound around the wedge member is inserted;
A part of the lower part of the rope socket in the vertical direction is inserted from above in the vertical direction, and a fitting hole is formed in which a part of the rope socket fits, and is installed in the car or the counterweight. a mounting plate ;
The compensating rope support mechanism is provided at one end of the compensating rope connected to the car from both ends of the compensating rope,
A rectangular fitting protrusion that fits into the fitting hole is provided at the end of the rope socket,
The fitting projection is formed so that its horizontal projection area is smaller than the horizontal projection area of the rope socket,
The insertion hole is formed in a tapered shape with an opening diameter continuously decreasing from the upper part to the lower part in the vertical direction,
The mounting plate is formed with an opening that opens from the side surface to the edge of the fitting hole and through which the compensating rope is inserted,
The width of the opening in the horizontal direction is set shorter than the length of the fitting protrusion in the horizontal direction.
elevator. 2. The elevator according to claim 1, wherein a part of the rope socket that fits into the fitting hole is formed in a shape having different lengths from the central axis through which the compensating rope is inserted to the outer circumference. 2. The elevator according to claim 1, wherein the fitting projection has an insertion hole communicating with the insertion hole. In a rope support mechanism that connects one end or the other end of a compensating rope provided in an elevator to a car or a counterweight,
A wedge member around which one end or the other end of a compen rope provided in an elevator is wound;
a rope socket formed with an insertion hole into which the one end or the other end of the compensating rope wound around the wedge member is inserted;
a mounting plate formed with a fitting hole into which a part of the lower part of the rope socket in the vertical direction is inserted from above in the vertical direction and into which a part of the rope socket is fitted ;
provided at one end of the compensating rope connected to the car,
A rectangular fitting protrusion that fits into the fitting hole is provided at the end of the rope socket,
The fitting projection is formed so that its horizontal projection area is smaller than the horizontal projection area of the rope socket,
The insertion hole is formed in a tapered shape with an opening diameter continuously decreasing from the upper part to the lower part in the vertical direction,
The mounting plate is formed with an opening that opens from the side surface to the edge of the fitting hole and through which the compensating rope is inserted,
The width of the opening in the horizontal direction is set shorter than the length of the fitting protrusion in the horizontal direction.
Compen rope support mechanism.

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