JPH0771537A - Rope holder - Google Patents

Abstract

PURPOSE:To facilitate installation of a rope by storing a wedge for forming a V-groove in a space up to a groove in a holding frame in the holding frame, the interior of which is formed like a trapezoid to form a rope holder, and clamping a rope inserted in the holder by the tensile force applied to the wedge. CONSTITUTION:In a rope holder used for replacing a rope laid in an elevating path of an elevator, at the time of holding the rope 15, with a wedge 6 shifted downward, it is moved from the left of the rope 15 to the right to insert the rope 15 between a V-groove of the wedge 6 and a spiral groove of a stride grooved metal 4. Subsequently, a hook suspended from a machine table is locked in a hook hole 6c of the upper end of the wedge 6 to pull up the wedge 6, so that the rope 15 is pressed and clamped between the wedge 6 and the stride grooved metal 4. After that, looseness of the rope 15 is adjusted, and at the time of detaching the holder, the upper side of the wedge 6 is tapped by a wooden hammer to shift the wedge 6 downward and move the same to the left side, so that the rope 15 is pulled out between the side plates 3, 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rope holder used when replacing a rope suspended in a hoistway of an elevator.

[0002]

2. Description of the Related Art FIG. 5 is a view showing a rope erection system for raising and lowering a car suspended in a conventional elevator hoistway,
The case of 2: 1 roping and the single lap type is shown. In FIG. 5, a socketing 31A is erected on the left side of the mechanism chamber 30 provided at the upper end of the hoistway 29, and the left upper end of the rope 15 suspended on the hoistway 29 is connected to the socketing 31A. It has been stopped.

A counterweight 34 is provided in the pit 29a at the lower end of the hoistway 29, and the lower end of the rope hanging from the socketing 31A is wound around a countersheave 24 provided at the upper end of the counterweight 34. . This rope
The right side of 15 goes through the solute sheave 22 and the main sheave 21 provided in the machine room 30 and hangs down the right side of the hoistway 29, and the car 28
After being wound around a car sheave 23 provided above the vehicle, it is connected to a socketing 31B standing upright at the right end of the machine room 30.

The rope 15 thus suspended is used in the machine room.
The car 28 is driven by the rotation of the main sheave 21 provided on the car 30, and the car 28 moves up and down the hoistway 29 by driving the rope 15. The mensieve 21 is driven by a hoist (not shown) installed in the machine room 30.

When the rope 15 has been used for a long period of time and the outer diameter of the rope 15 has been reduced to a state prescribed by the replacement standard, the rope 15 is replaced with a new rope for the safety of passengers using the car 28. In this replacement work, first, the car 28 is moved to the hoistway 29.
After ascending to the upper part of the
The counterweight 34 descending to the pit 29a below the hoistway 29 is supported by a lower beam (not shown), and the rope 15 is loosened and removed.

The new rope is erected by installing the wire drum 27 on the bottom floor of the landing floor, providing the working floor about 1 m below the counter sheave 24, and then pulling out from the wire drum 27 with the broken line in FIG. The rope 15 shown by is erected in the order of the solve sheave 22, the main sheave 21, the car sheave 23 and the socketing 31B, and the other side of the rope 15 is connected to the socketing 31A from the counter sheave 24.

Next, in order to bend the erected rope 15, the temporary fasteners 33 are arranged in a zigzag manner on the rope fixing fitting 18 of the counter rail 19 provided below the machine room 30 as shown in FIG. Provide and fix the rope 15. In this state, the rope 15 protruding above the temporary rope stopper 33 is gripped by the rope holder 32 as shown in FIG. 5, and the rope holder 32 is suspended by a chain block or the like on the machine base. Reference numeral 20 indicates a bracket.

Various types of rope holders 32 have been conventionally used. Among them, for example,
There is also a gripper gripper shown in the publication of 3-229042.

[0009]

However, in this gripping line gripper, each time the six ropes 15 shown in FIG. 6 are lifted, the lock pin is inserted into and removed from the small diameter hole formed in the fastener. In addition, this work is inefficient because the rope holder is located below the machine base. Therefore, if the lock pin is dropped when it is inserted, it must go down to the pit of the hoistway. On the other hand, the rope erection work must be done within a limited period due to other works of the building where the elevator is installed.

Therefore, an object of the present invention is to obtain a rope holder that allows the rope to be installed easily.

[0011]

According to a first aspect of the present invention, there is provided a holding frame having a trapezoidal shape inside, and a spiral groove is formed on an inner surface of the holding frame so as to be loosely fitted to one side. The rope holder includes a soft metal material and a wedge in which a V groove is formed at a portion facing a spiral groove loosely fitted to the other side inside the holding frame.

Further, according to a second aspect of the present invention, there is provided a holding frame having a trapezoidal interior and an opening formed on a side surface, and a spiral groove formed on the inner surface of the holding frame so as to be loosely fitted to one side. The rope holder is a wedge in which a V-groove is formed at a portion where a soft metal material formed with and a spiral groove that is loosely fitted to the other side inside the holding frame are opposed to each other.

According to a third aspect of the present invention, a U-shaped holding frame having a trapezoidal shape inside, a pair of side plates attached to the opening side of the holding frame, and the inside of the holding frame. Of the soft metal material that is loosely fitted to one side of the holder and has a spiral groove formed on the inner surface thereof, and V is loosely fitted to the other side of the inside of the holding frame and opposite to the spiral groove.
The rope holder is a wedge formed with a groove.

Further, the invention according to claim 4 is a soft metal material having a spiral groove formed in a semicircular shape on one surface, and a holding plate having a V groove facing the spiral groove. It is a rope holder.

[0015]

According to the first aspect of the present invention, the rope inserted between the spiral groove and the V groove is a spiral groove in the V groove of the wedge due to the tensile force applied to the tip of the wedge. Is pressed by.

Further, in the inventions according to claims 2 and 3, the rope inserted between the spiral groove and the V groove from the opening is generated by the tensile force applied to the tip of the wedge. It is pressed against the spiral groove by the V groove of the wedge.

Further, in the invention as set forth in claim 4, the rope inserted between the spiral groove and the V groove is pressed into the spiral groove by the V groove of the holding plate.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the rope holder of the present invention will be described below with reference to the drawings. 1 is a perspective view showing a rope holder of the invention described in claims 1, 2, and 3, FIG. 2 is a partial perspective view of FIG. 1, and FIG. 3A is a partial perspective view of FIG. .

In FIGS. 1 and 2 and FIG. 3 (a), an opening 2f having an opening on the right side is formed inside a holding frame 2 formed of an aluminum alloy casting in a substantially trapezoidal shape as shown in FIG. Has been done. A guide portion 2g having a substantially L shape in a plan view and a trapezoidal shape in a right side view is formed on the left side of the opening 2f, and a stepped portion 2i is formed inside the guide portion 2g.
A mounting portion 2h is formed at the rear of the opening 2f.

Of these, on the right end surface of the guide portion 2g, there are formed three mounting female screw holes 2d in the upper and lower sides in total.
A female screw hole 2e is formed in the center of the left side of the. On the other hand, the mounting portion 2h is provided with three mounting female screw holes 2a and two female screw holes 2b on the upper surface, and three mounting female screw holes 2c on the right end face, and is also mounted on the lower surface. Three screw holes 2a and two mounting female screw holes 2b are formed.

Above the mounting portion 2h of the holding portion 2, a holding plate 3 which is substantially concave in plan view and which is made of an aluminum alloy plate is inserted into a mounting hole 3a provided in the holding plate 3 by a bolt. It is fixed at. Similarly, the pressing plate 3 is attached to the lower portion of the attaching portion 2h with bolts 12. On the right side surface of the mounting portion 2h, a side plate 5 also made of an aluminum alloy material is inserted into the mounting hole 5a formed at the rear portion of the right side surface of the side plate 5, and the tip is inserted into the mounting portion 2 shown in FIG. Since it is provided in the portion 2h, it is fixed by a bolt screwed into the screw hole 2c.

The stride grooved metal 4 made of zinc material shown in FIG. 3 is provided on one side of the stride metal 4 on the inner surface of the mounting portion 2h in which the pressing plate 3 is mounted on the upper and lower sides and the side plate 5 is mounted on the right end surface. It is loosely fitted with the spiral groove 4a formed on the inside thereof, and is positioned by a screw pin (not shown) screwed into the screw hole 2c because it is formed on the upper and lower surfaces of the mounting portion 2h. In addition, the spiral groove 4 of the metal 4 with a stride groove
The curvature of a is different for each of the three types of ropes having diameters of 12 mm, 14 mm, and 16 mm, and the length in the vertical direction is one pitch or more of the rope.

On the right side surface of the guide portion 2g of the holding portion 2, FIG.
Side plate made of aluminum alloy in trapezoid
13 is inserted into a mounting hole 13a formed on the front surface side of the side plate 13, and the tip thereof is formed on the right side surface of the guide portion 2g, so that it is fixed by a bolt (not shown) screwed into the screw hole 2d.
A through hole is formed in the central portion of the side plate 13 at a position facing the female screw hole 2e.

A wedge 6 having a right-angled triangle whose upper and lower sides are long when viewed from the right side is inserted from the bottom into the interior surrounded by the holding portion 2 and the side plate 13. A groove 6a is formed in the left portion of the wedge 6 in parallel with the slope of the right triangle, and the middle portion of the groove 6a is inserted into the through hole formed in the central portion of the side plate 13 from the right side so that the tip is The screw hole 2 is formed in the center of the left side surface of the guide portion 2g.
The bolt 6d screwed to the e is loosely fitted. A substantially convex hook portion 6b is formed at the upper end of the wedge 6, and a hook hole 6c penetrating left and right is formed at the center of the hook portion 6b. An obtuse V groove 11 is formed on the rear surface of the wedge 6, as shown in FIG.

When holding the rope 15 as shown in FIG. 5 with the holding tool 1 thus constructed, the wedge 6 shown in FIG. 1 is shifted downward and the rope 15 is moved from the left side to the right side in FIG. After moving the rope 15 to the position where the rope 15 becomes the V groove 11 of the wedge 6 and the center of the stride grooved metal 4, the hook hung from the machine base is inserted into the hook hole 6c at the upper end of the wedge 6 and pulled up. As a result, the rope 15 is clamped by the wedge 6 and the strand grooved metal 4.

In the rope holder 1 thus constructed, the looseness of the ropes 15 is adjusted so that the adjacent ropes 15
When removing to hold the rope, the hook 6b of the wedge 6 is hit from above with a wooden hammer or the like to shift the wedge 6 downward and move it to the left side in FIG. 1 to move the rope 15 between the side plate 3 and the side plate 5. Remove from the gap.

Therefore, since no bolts or pins are required to attach / detach the rope 15, no tools are required when attaching / detaching to / from the rope 15, and the risk of dropping the bolts or pins into the pit can be eliminated. it can.

The outer shape of the strand grooved metal 4 is
It is the same regardless of the diameter of the rope 15 and only the spiral groove 4a is different, so by simply replacing the strand grooved metal 4,
It can also be used for installation work of elevators with different diameters of rope 15. Further, since the holding portion 2, the side plates 5, 13 and the wedge 6 are made of an aluminum alloy material and are lightweight, the overall weight can be reduced.

In the above embodiment, the frame in which the wedge 6 and the metal with strand groove 4 are loosely fitted is constituted by the holding frame 2, the holding plate 3, and the side plates 5 and 13 which are bolted. May have a welded structure, or may be an integral part made of aluminum alloy casting.

Although the holding frame 2 has a trapezoidal shape with one side being a right angle when viewed from the right side surface, it may be a trapezoidal rectangular tube having slopes formed on both sides, or may be a cylindrical shape. In the case of a cylinder, the wedge 6 and the strand grooved metal 4 may be semicircular in a plan view.

Next, FIG. 4 is a perspective view showing the temporary stopper 7. In FIG. 4, the pressing plate 3 is provided above and below the metal 4 with strand groove shown in FIG.
It is fixed at 12, and prismatic side plates 5A are fixed to the left and right of the strand grooved metal 4.

Left and right side plates 5A and strand grooved metal 4
A pressing plate 17 is provided on the front surface of the pressing plate 17, and the pressing plate 17 is fixed to the side plate 5A by bolts 10 inserted from a pair of grooves 16 formed on the front surface of the pressing plate 17. Presser plate
A V groove 11 is vertically formed in the center of the back surface of the groove 17, and a bolt 8 for fixing the temporary stopper 7 to the rope fixing metal fitting 18 shown in FIG. 6 is inserted in the center of the groove 16. Bolt 8
The left and right side plates 5A are loosely fitted in through holes formed in the left and right central portions of the left and right side plates 5A and protrude rearward of the side plates 5A. The left and right grooves
The width of 16 is slightly wider than the width of the heads of bolts 8 and 10.

Also in the temporary stopper 7 having the above-mentioned structure, the rope 15 is fixed to the V groove 11 by tightening the bolts 8 and 10.
Since it can be sandwiched by the stride groove metal 4 made of zinc and the holding plate 17 made of aluminum alloy by sandwiching the spiral groove 4a with the spiral groove 4a, the strand of the rope 15 can be temporarily fixed without being damaged.

In the above embodiment, the rope is
Although the description has been given for the case of the 2: 1 roping and the single wrap type, it can be applied regardless of the type of roping. Also, although the description has been given for the case of the rope for suspending the elevator car suspended in the hoistway, the present invention can be applied regardless of the equipment to be suspended. Further, although described in the case of holding a rope of a suspended device, the direction of load can be applied independently of the direction of gravity.

[0035]

As described above, according to the invention of claim 1,
A holding frame having a trapezoidal shape inside, a soft metal material having a spiral groove formed on one side inside the holding frame and a spiral groove loosely fitted on the other side inside the holding frame. Forming a rope holder with a wedge in which a V-shaped groove is formed in the portion facing the groove.
Since the rope inserted between the spiral groove and the V groove is pressed against the spiral groove by the tensile force applied to the tip of the wedge, a rope holder that can be easily installed is obtained. be able to.

According to the second aspect of the present invention, a holding frame having a trapezoidal shape inside and an opening formed on the side surface, and a holding frame which is loosely fitted to one side inside the holding frame and has a spiral shape on the inner surface. The rope holder is constituted by a wedge in which a V groove is formed at the opposite portion of the soft metal material in which the groove is formed and the spiral groove that is loosely fitted to the other side inside the holding frame, and is spirally formed from the opening. Since the rope inserted between the groove and the V-shaped groove is pressed against the spiral groove by the tensile force applied to the tip of the wedge, a rope holder that can be easily installed is obtained. You can

According to the third aspect of the invention, a U-shaped holding frame having a trapezoidal interior, a pair of side plates attached to the opening side of the holding frame, and the holding frame A wedge in which a V groove is formed at a portion opposite to a soft metal material that is loosely fitted to one side inside and has a spiral groove formed on the inner surface, and a soft metal material that is loosely fitted to the other side inside the holding frame and the spiral groove is formed. Since the rope holder is configured with, and the rope inserted between the spiral groove and the V groove from the opening is pressed against the spiral groove by the tensile force applied to the tip of the wedge, the rope is erected. It is possible to obtain a rope holder that can be easily performed.

Further, according to the invention of claim 4,
A soft metal material in which a spiral groove is formed in a semicircular shape on one surface,
A rope holder is configured with a holding plate having a V groove formed opposite to the spiral groove, and a rope inserted between the spiral groove and the V groove is used as a V groove of the holding plate having the V groove formed. Since it is pressed by the rope holder, it is possible to obtain a rope holder that allows the rope to be installed easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a rope holder of the invention described in claims 1, 2 and 3. FIG.

FIG. 2 is a perspective view showing a main part of FIG.

FIG. 3A is a perspective view showing a main part different from FIG. 2 in FIG. (B) is a partial cross-sectional view of FIG.

FIG. 4 is a perspective view showing an embodiment of the rope holder of the invention according to claim 4;

FIG. 5 is a vertical cross-sectional view showing an elevator hoistway to which a conventional rope holder is attached.

FIG. 6 is a perspective view showing a part of a counter rail of an elevator hoistway to which a conventional rope holder is attached.

[Explanation of symbols]

2 ... Holding frame, 3 ... Holding plate, 4 ... Stride metal, 4a
... spiral groove, 5, 13 ... side plate, 6 ... wedge, 7 ... temporary stopper, 11 ...
V groove, 15 ... rope.

Claims (4)

[Claims] 1. A holding frame having a trapezoidal interior, a soft metal material having a spiral groove formed on its inner surface by being loosely fitted to one side of the inside of the holding frame, and other interior parts of the holding frame. A rope holder that is a wedge that is loosely fitted to the side and has a V groove formed in a portion facing the spiral groove. 2. A holding frame having a trapezoidal interior and an opening formed on a side surface thereof, and a soft metal material having a spiral groove formed on an inner surface of the holding frame so as to be loosely fitted to one side of the holding frame. A rope holder comprising a wedge that is loosely fitted to the other side of the inside of the holding frame and has a V groove formed at a portion facing the spiral groove. 3. A U-shaped holding frame having a trapezoidal interior, and a pair of side plates attached to the opening side of the holding frame,
A V-shaped groove is formed in a portion opposite to the soft metal material that is loosely fitted to one side inside the holding frame and has a spiral groove formed on the inner surface thereof and the other side of the holding frame that is loosely fitted to the spiral groove. A rope holder that consists of wedges formed with. 4. A rope holder comprising a soft metal material in which a spiral groove is formed in a semicircular shape on one surface, and a holding plate in which a V groove is formed so as to face the spiral groove.