JPH06191771A - Balance weight device for elevator - Google Patents

Abstract

PURPOSE:To provide a balance weight device for an elevator wherein no reaction force in a horizontal direction is generated of guide fixtures by a balance streak unit. CONSTITUTION:A plurality of main ropes are connected to a position where no moment is generated relating to the center of gravity of a balance weight 5 in an upper part of the balance weight 5 having guide fixtures 7 in the corner parts. A plurality of balance streak units 22 are suspended from a position where no moment is generated relating to the center of gravity of the balance weight 5 in a lower part thereof. In this way, no unbalanced load is generated in the balance weight 5 regardless of any lift position in a lift path of the balance weight 5, to reduce wearing of the guide fixtures 7 by reaction force in a horizontal direction of the unbalanced load. Accordingly, maintenance of the guide fixtures is facilitated, to obtain quietness by reducing noise due to wearing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to an elevator counterweight device for elevating a high-elevation process at high speed.

[0002]

2. Description of the Prior Art FIGS.
FIG. 8 is a view showing a conventional elevator counterweight similar to the elevator counterweight shown in Japanese Patent No. 878, FIG. 8 is a longitudinal sectional view of a main part of a hoistway conceptually showing the elevator apparatus, and FIG. 8 is an enlarged front view of the counterweight of FIG. 8, FIG. 10 is an exploded perspective view of a main part of the counterweight of FIG. 9, and FIG. 11 is an enlarged view of a main part of a cross section taken along the line AA of FIG.
2 is a plan view showing a cover of an upper space of the counterweight of FIG. 9. In the figure, (1) is the elevator hoistway,
Although not shown in the figure (2), the main ropes hung on the hoisting machine installed in the machine room above the hoistway (1) and hung down on the hoistway (1), (3) is the main The car is connected to one end of the rope (2) and moves up and down the hoistway (1), and covers are provided on the upper and lower portions, respectively. (4) is a counterweight rail that is erected in the hoistway (1) so as to be separated from each other.

Reference numeral (5) is a counterweight arranged between the counterweight rails (4) and connected to the other end of the main rope (2).
A guide tool consisting of a hanging frame (6) in which steel materials are assembled in a square shape, and a roller guide shoe that is attached to each of the four corners of the hanging frame (6) and is movably engaged with the counterweight rail (4).
(7), the recessed weight piece (8), in which a plurality of longitudinal end portions are engaged with the side portions of the suspension frame (6), respectively, and a plurality of the suspension frame (6) are arranged in a stacked state at the bottom of the suspension frame (6), The rope stopper plate (9) arranged in a state of being inserted between the attached weight pieces (8), the longitudinal ends of the suspension frame (6) are respectively engaged with the side portions of the recessed weight piece (8). A plurality of weight pieces (10) are stacked on top of each other, and both longitudinal ends are engaged with the sides of the suspension frame (6), and a plurality of weight pieces are arranged on the weight piece (10) in a stacked state. The adjustment weight piece (11) and the lower beam (12) forming the lower side of the suspension frame (6) are configured. (13) is a space formed between the upper beam of the suspension frame (6) and the uppermost adjustment weight piece (11).

The main frame (2) is connected to the upper end of (14) and the suspension frame is formed.
(6) A rod that is inserted through the upper beam, a compression coil spring (15) is fitted to the lower end and a nut (16) is screwed to the lower end, (17)
A cover that covers the space (13) formed between the upper beam of the hanging frame (6) and the uppermost adjustment weight piece (11), and is provided at the location corresponding to the compression coil spring (15) at the lower end of the rod (14). Is equipped with an inspection cover (18) consisting of a hinged door. (19) is a buffer pedestal provided at the center of the lower beam (12) on the lower side of the suspension frame (6) in the front direction, and is constituted by fastening a plurality of members in a stacked state. (20) is a counterbalanced weight shock absorber provided on the bottom surface of the hoistway (1) and facing the shock absorber cradle (19), (2)
1) is a car shock absorber provided on the bottom surface of the hoistway (1) and arranged to face the car (3).

The reference numeral (22) is a suspended joint body composed of a suspended rope which is connected to the car (3) and the counterweight (5) at both ends and is arranged in the hoistway (1) so as to form a hanging curved portion, (23) is connected at the lower end to the balance weight (5) side end of the balance strip (22), is inserted into the rope stop plate (9) and is fastened, and the recessed weight piece (8) is recessed. Balancing rod placed in place, (24) is hoistway
(1) A balancing vehicle that is provided at the bottom so as to be vertically displaceable, and is placed in a straddling state on the hanging curved portion of the suspension compound body (22) so as to apply tension to the suspension compound body (22).

The conventional elevator counterweight device is constructed as described above, and when the main rope (2) is stretched due to secular change, the counterweight buffer (5) when the counterweight (5) is at its lowest position. Some members of the buffer cradle (19) are removed in order to maintain the gap between the buffer cradle (19) and the buffer cradle (19) at a predetermined value. Then, even if all the members of the buffer cradle (19) are removed, if the gap between the counterweight counterbalanced shock absorber (20) and the buffer cradle (19) cannot be maintained at a predetermined value, the main rope (2)
The nut (16) of the rod (14) connected to is further screwed in, and the gap between the counterweight shock absorber (20) and the buffer cradle (19) is maintained at a predetermined value.

Further, the weight difference between the car side (3) of the main rope (2) and the counterweight (5) side due to the position of the car (3) in the hoistway (1) is compensated by the balancing compound body (22). To be done. Then, if the balancing compound (22) is stretched due to secular change, the nut of the balancing rod (23) is tightened to absorb the secular change.

Also, the speed is 300 US / min, and the lifting stroke is 150.
In a high-speed elevator that exceeds the size of rice, the weight pieces with recesses (8) are arranged in a stack, the balancing rods (23) are placed in the recesses, and the ends of the balancing compound (22) are balanced. (Five)
By making the thickness of the counterweight (5) as close as possible to the center of the counterweight (5), an unbalanced load due to the balancing compound (22) acting on the counterweight (5) is reduced. Furthermore, in order to suppress the generation of wind noise due to the pressure difference when the car (3) and the counterweight (5) pass each other, the balance frame (6) of the counterweight (5) The upper beam and the top adjustment weight A cover (17) is provided to cover the space (13) formed between the piece (11).
Further, the cover (17) is provided with an inspection cover (18) which is a hinged door for tightening the nut (16) at the lower end of the rod (14).

[0009]

SUMMARY OF THE INVENTION In the conventional elevator balancing weight device as described above, a weight piece with a recess is provided.
Since the (8) is provided, the center of gravity of the counterweight (5) deviates from the counterweight rail (4). As a result, an unbalanced load is generated in the counterweight (5), and a horizontal reaction force acts on the guide tool (7). Also, as the counterweight (5) rises, the weight of the counterweight (22) on the counterweight (5) side increases, but the weight (5) of the counterbalance (22) side Depending on the weight of the guide weight (5), an unbalanced load is generated on the mating weight (5).
Horizontal reaction force acts on.

Due to the horizontal reaction force of the guide tool (7), the guide tool is used in an elevator having high speed and high ascending / descending strokes.
There was a problem in that (7) was worn early and the noise increased, and the noise was transmitted to the building provided with the elevator through the counterweight rail (4).

Also, after carefully tightening the rod (14) at the upper end of the counterweight (5), the rod (14) at the upper end, and the nut (16) at the lower end from the working position on the car (3), carelessly inspect it. If the cover (18) is forgotten to be closed, the inspection cover (18) may be damaged when the car (3) and the counterweight (5) pass each other. In addition, the guide tool (7) by the horizontal reaction force of the guide tool (7)
In order to avoid the occurrence of premature wear and noise,
It is possible to increase the size of (7). However, there is a problem in that the space required for the hoistway (1) is increased by enlarging the guide tool (7).

The present invention has been made to solve the above problems, and an elevator balancing weight device in which a horizontal reaction force of a guide tool due to a balancing member does not occur regardless of the position of the balancing weight. It is also an object of the present invention to provide an elevator counterweight device in which the inspection cover of the counterweight does not project and displace from the outer surface of the counterweight.

[0013]

SUMMARY OF THE INVENTION In an elevator counterweight device according to a first aspect of the present invention, a counterweight that is assembled and a guide tool is attached to a corner and a counterweight. Is connected to the lower edge of the counterweight and a plurality of main ropes that are engaged with the upper edge of the counterweight and are placed at a position that does not generate a moment with respect to the center of gravity of the counterweight, and that suspend the counterweight. There are provided a plurality of suspended joints suspended from a position that does not generate a moment with respect to the center of gravity of the counterweight.

Further, in the elevator counterweight device according to the second aspect of the present invention, the elevator counterweight device is assembled in a frame shape having a space above the lower beam, and the guide tool is mounted at the corner. The counterweight, a buffer cradle for the collision receiving, which is provided at the center of the front side of the counterweight and is arranged on the lower surface of the lower beam, and the counterweight engaged with the upper edge of the counterweight. A plurality of main ropes that are placed at a position that does not generate a moment with respect to the center of gravity of the
From the position where the counterweight is inserted into the lower beam and connected to the ropes that are installed in the space above the lower beam, and is placed on both sides of the buffer pedestal so that no moment is generated with respect to the center of gravity of the counterweight. A plurality of suspended fittings are provided.

Further, in the elevator counterweight device according to the third aspect of the present invention, a counterweight which is assembled in a frame shape having a void and in which a guide tool is mounted at a corner, The fastening weight is engaged with the upper edge of the counterweight, and the fastening portion is disposed in the upper space. The fastener is placed at a position where no moment is generated with respect to the center of gravity of the counterweight. A main rope, and a plurality of suspension joints that are inserted from the lower beam of the counterweight and have a fastening portion arranged in a lower space, and are suspended from a position that does not generate a moment with respect to the center of gravity of the counterweight. , A slotted hole provided on one side of the edge part and a slotted hole long on the other side of the edge part in the disengagement movement direction are provided in the opening part of the cover that covers the void of the counterweight Then, it is covered with a head screw through the Daruma hole and the slot. It is provided with engagement on the cover plate to.

[0016]

In the invention according to claim 1 of the present invention configured as described above, at the position where no moment is generated in the center of gravity of the counterweight, the counterweight is suspended by the main rope and the counterweight is The suspended compound body is suspended at a position where no moment is generated in the center of gravity of the.

Further, in the invention according to claim 2 of the present invention configured as described above, the counterweight is suspended by the main rope at a position where no moment is generated in the center of gravity of the counterweight. Furthermore, it is inserted into the lower beam of the counterweight and is connected to the ropes that are installed in the space above the lower beam.The center of gravity of the counterweight is placed on both sides of the buffer pedestal of the lower beam of the counterweight. The suspended compound body is suspended at a position where no moment is generated in.

Further, in the invention according to claim 3 of the present invention configured as described above, the balance weight is suspended by the main rope at a position where no moment is generated at the center of gravity of the balance weight, and the balance weight is suspended. The suspended compound body is suspended at a position where no moment is generated in the center of gravity of the compound weight. In addition, it is placed on the cover that covers the empty space of the counterweight and covers the opening of the cover corresponding to the fastening part of the main rope and the suspension compound, and is fastened to the cover with a head screw through a daruma hole and an elongated hole. At the time of inspection, the cover plate thus released is disengaged from the duller hole, and is rotated along the vertical plane via the headed screw of the long hole to open the fastening portion of the main rope and the suspension compound.

[0019]

【Example】

Example 1. 1 and 2 are views showing an embodiment of the present invention, in which FIG. 1 is a front view of an essential part of an elevator balancing weight device corresponding to the essential part of FIG. 9 described above, and FIG. -B
It is a line expanded sectional view, and it is constituted substantially like FIG. 8 and FIG. 9 except FIG. 1 and FIG.

In the figure, (4) is a counterweight rail that is erected separately from each other in the hoistway (1), and (5) is a main weight rope (2) that is arranged between the counterweight rails (4). A suspension frame in which steel materials are assembled in a square shape with a counterweight connected to
(6), a guide tool (7) composed of roller guide shoes attached to the four corners of the suspension frame (6) and movably engaged with the counterweight rail (4), and side portions of the suspension frame (6) A plurality of weight pieces (10) arranged in a stacked state by engaging both longitudinal end portions with each other, and a weight piece (1) provided under the hanging frame (6).
0) supporting the lower frame (25), the lower beam (12) which forms the lower side of the suspension frame (6) and forms the space (26) between the lower frame (25), and the space.
It is constituted by a rope stop beam (27) provided across the (26). Although not shown, a space is formed between the upper beam of the suspension frame (6) and the uppermost adjustment weight piece.

(19) is a buffer pedestal provided at the center of the lower beam (12) of the suspension frame (6) in the front direction, and is constituted by fastening a plurality of members in a stacked state. Both ends of (22) are connected to the car (3) and the counterweight (5) respectively, and the hoistway (1)
It is a balancing compound made up of a balancing rope that is arranged with a hanging curved portion on the side, and the balancing weight (5) side is the balancing weight (5).
Two of them are arranged at symmetrical positions on the left and right with respect to the center of the width direction. (23) is a vacant space (26) that is connected to the lower end (12) and the rope of the rope (27) by connecting the end on the counterweight (5) side of the suspended composite body (22) to the lower end. It is a balancing rod arranged at. (28) is a retainer that is fastened to the lower beam (12) and closes the insertion hole of the balancing rod (23) of the lower beam (12) to block the insertion part of the compound body (22), and (29) Void (26) fastened to the frame (6)
It is a cover that covers.

In the elevator counterweight device constructed as described above, although not shown, a moment is generated with respect to the center of gravity of the counterweight (5) in which a plurality of main ropes (2) are assembled. Position, that is, the hanging frame
(6) The counterweight (5) is hung at symmetrical positions with respect to the vertical line passing through the center of gravity of the upper beam counterweight (5). In addition, a position that does not generate a moment with respect to the center of gravity of the counterweight (5), in which a plurality of counterbalancing members (22) are assembled, that is, the center of gravity of the counterweight (5) of the ropes (27). They are placed symmetrically with respect to a vertical line passing through and are hung from the counterweight (5).

Therefore, the hoistway (1) of the counterweight (5)
No unbalanced load is generated on the counterweight (5) regardless of the vertical position of the, and the horizontal reaction force due to the unbalanced load does not act on the guide tool (7). For this reason, even when the elevator is moving at high speed and high up and down,
Premature wear due to the horizontal reaction force of (7) can be prevented, and the guide tool (7) can be easily maintained. Further, the noise due to wear of the guide tool (7) is reduced, and the installation environment of the elevator can be made quiet.

Further, in the embodiment shown in FIGS. 1 and 2, the suspension joints (19) are provided on both sides of the buffer cradle (19) provided at the center of the lower beam (12) of the suspension frame (6) in the front direction. 22) are placed for two. For this reason, a balance weight shock absorber (20),
The balancing vehicle (24) can be easily arranged in a space-efficient manner.

In addition, when elongation occurs in the suspension compound body (22) due to aging, the nut of the balancing rod (23) is tightened in the space (26) above the rope stop beam (27). The stretched composite strip (22) is pulled up.

Example 2. FIG. 3 is a view showing another embodiment of the present invention, and is a front view of an essential part of an elevator counterweight device corresponding to the essential part of FIG. 9 described above, and FIGS. The configuration is substantially the same as that of 9. In the figure, the same reference numerals as those in FIG. 1 and FIG. 2 indicate corresponding parts, and (30) is a vertical column provided at the center of the suspension frame (6) in the front direction, and the lower frame (2
5), Tethering beam (27) and lower beam (12) are connected and a counterweight
They are provided on the front and back of (5), respectively.

Also in the embodiment of FIG. 3, although not shown, a counterweight having a plurality of main ropes (2) assembled therein.
The counterweight is placed at a position where no moment is generated with respect to the center of gravity of (5), that is, symmetrically with respect to the vertical line passing through the center of gravity of the upper beam (5) of the suspension frame (6).
(5) is suspended. In addition, a position that does not generate a moment with respect to the center of gravity of the counterweight (5), in which a plurality of counterbalancing members (22) are assembled, that is, the center of gravity of the counterweight (5) of the ropes (27). They are placed symmetrically with respect to a vertical line passing through and are hung from the counterweight (5).

Therefore, an unbalanced load does not occur in the counterweight (5) regardless of the hoisting position of the hoistway (1) of the counterweight (5), and the horizontal reaction force due to the unbalanced load is not generated. Does not affect the guide (7). Therefore, although detailed description is omitted, it is obvious that the same operation as that of the embodiment of FIGS. 1 and 2 can be obtained in this embodiment.

Further, in the embodiment shown in FIG. 3, when the counterweight (5) collides with the counterweight shock absorber (20), the lower frame (12) is bent upward and the lower beam (25) is Although it is bent downward due to the load of the weight piece (10), in the embodiment of FIG. 3, the deformation load of the lower frame (12) and the lower beam (25) generated when the weight piece shock absorber (20) collides. Are offset by the columns (30). In addition, even if a load other than when it collides with the counterweight shock absorber (20) acts on the lower frame (25), the tether beam (27), and the lower beam (12), the load is applied to the vertical column ( 30) by bottom frame
(25), Tether beams (27) and Lower beams (12). Therefore, the rigidity of the lower frame (25), the tether beam (27) and the lower beam (12) can be reduced, and the manufacturing cost of the counterweight (5) can be reduced.

Example 3. FIG. 4 is also a view showing another embodiment of the present invention, which is a vertical sectional side view of an essential part of the counterbalance weight device for an elevator corresponding to FIG. 2 described above, and FIGS. The configuration is almost the same. In the figure, the same reference numerals as those in FIG. 1 and FIG.
5), the steel beams (27) and the lower beams (12) are bent to have a grooved cross section, and the lower frame (25) and the steel beams (27) face downward in the groove-shaped opening. And the lower beam (12) is arranged with the groove-shaped opening facing upward.

Also in the embodiment of FIG. 4, although not shown, a counterweight composed of a plurality of main ropes (2) assembled.
The counterweight is placed at a position where no moment is generated with respect to the center of gravity of (5), that is, symmetrically with respect to the vertical line passing through the center of gravity of the upper beam (5) of the suspension frame (6).
(5) is suspended. In addition, a position that does not generate a moment with respect to the center of gravity of the counterweight (5), in which a plurality of counterbalancing members (22) are assembled, that is, the center of gravity of the counterweight (5) of the ropes (27). They are placed symmetrically with respect to a vertical line passing through and are hung from the counterweight (5).

Therefore, an unbalanced load is not generated in the counterweight (5) regardless of the hoisting position of the hoistway (1) of the counterweight (5), and the horizontal reaction force due to the unbalanced load is not generated. Does not affect the guide (7). Therefore, although detailed description is omitted, it is obvious that the same operation as that of the embodiment of FIGS. 1 and 2 can be obtained in this embodiment.

In the embodiment of FIG. 4, the lower frame (25),
The groove-shaped recesses of the rope beam (27) and the lower beam (12) can be used as a pulling space by the amount of extension when the suspended compound body (22) is stretched due to aging. As a result, the height of the counterweight (5) can be reduced, the height of the hoistway can be shortened, and the cost can be reduced. In addition, the lower frame (25), the rope beam (27) and the lower beam (12) can be manufactured at low cost.

Example 4. 5 to 7 are views showing another embodiment of the present invention. FIG. 5 is a front view of a main portion of an elevator balancing weight device corresponding to the main portion of FIG. 9 described above, and FIG. FIG. 7 is a perspective view of the cover plate provided on the cover.
8 is a view for explaining an open state of the cover plate of FIG. 7, and is configured substantially the same as FIGS. 8 and 9 except for FIGS. 5 to 7. In the figure, the same reference numerals as those in FIG. 1 and FIG.
9) Cover that covers the empty space (26) of the hanging frame (6), and (31) is the cover
The opening provided in (29) corresponding to the fastening portion of the balancing rod (23), (32) is a cover plate arranged in the opening (31), and is provided at each of the three corners of the edge. A daruma hole (33) and an elongated hole (34) are provided at the other corner of the edge. (35) is a cover plate (32)
It is a head screw which is inserted into the bursa hole (33) and the elongated hole (34) and screwed into the cover (29).

Also in the embodiment of FIGS. 5 to 7, although not shown, a position where no moment is generated with respect to the center of gravity of the counterweight (5) in which a plurality of main ropes (2) are assembled,
That is, the counterweight (5) is hung at symmetrical positions with respect to the vertical line passing through the center of gravity of the counterweight (5) of the upper beam of the suspension frame (6). In addition, a plurality of suspended compound (22)
Is also placed at a position that does not generate a moment with respect to the center of gravity of the assembled counterweight (5), that is, symmetrically with respect to the vertical line passing through the center of gravity of the counterweight (5) of the rope beams (27). It is hung from the counterweight (5).

Therefore, no unbalanced load is generated in the counterweight (5) regardless of the hoisting position of the hoistway (1) of the counterweight (5), and the horizontal reaction force due to the unbalanced load is not generated. Does not affect the guide (7). Therefore, although detailed description is omitted, it is obvious that the same operation as that of the embodiment of FIGS. 1 and 2 can be obtained in this embodiment.

Further, in the embodiment shown in FIGS. 5 to 7, a cover (29) for covering the empty space (26) of the suspension frame (6) is provided.
The cover plate (32) is arranged in the opening (31) provided in the (29) and corresponding to the fastening portion of the balancing rod (23). Then, the cover plate (32) is covered with a head screw (35) through a round hole (33) at three corners of the edge and a slot (34) at the other corner of the edge (2).
It is concluded in 9).

Then, when elongation occurs in the suspended compound body (22) due to aging and the amount of elongation increases, that is,
When inspecting the fastening part of the balancing rod (23), the cover plate (32) is opened as described below without loosening the head screw (35) and removing it from the cover (29). . That is,
The cover plate (32) has a long hole (3
Moved via 4). Then, in the state where the disengagement by the daruma hole (33) is released, the cover plate (32) is rotated along the vertical plane about the head screw (35) of the elongated hole (34), and the cover plate (32) is rotated by its own weight. It is held in the hanging position and the fastening portion of the suspension compound body (22) is opened as shown by the chain line in FIG.

As a result, even if the user forgets to close the cover plate (32) when checking the fastening portion of the balancing rod (23), the cover plate (32) does not project to the car (3) side. Basket
It is possible to prevent the occurrence of an accident in which the cover plate (32) is damaged when the counterweight (5) and the counterweight (5) pass each other.

Further, since the cover plate (32) can be moved to open the fastening portion of the suspended joint body (22) without removing the headed screw (35) from the cover (29), Doing rod (23)
There is no risk of dropping parts when inspecting the fastening portion, and the safety of the inspection work of the fastening portion of the balancing rod (23) can be improved.

The structure of the inspection part including the cover (29) and the cover plate (32) is also provided in the fastening part of the main rope (2) above the counterweight (5) and the balance rod (23). It is possible to obtain the same effect as that of the fastening portion of).

[0042]

As described above, the invention according to claim 1 of the present invention engages with the counterweight which is assembled and has the guide tool mounted at the corner thereof, and the upper edge of the counterweight. Moment with respect to the center of gravity of the counterweight, which is connected to multiple main ropes that suspend the counterweight and is placed at a position that does not generate a moment with respect to the center of gravity of the counterweight, and is connected to the lower edge of the counterweight. And a plurality of suspended fittings that are hung from a position that does not cause

As a result, the counterweight is suspended by the main rope at a position where no moment is generated at the center of gravity of the counterweight, and the balance member is suspended at a position where no moment is generated at the center of gravity of the counterweight. Be sent down. Therefore, an unbalanced load does not occur in the counterweight regardless of the ascending / descending position of the hoistway of the counterweight, and the wear of the guide tool caused by the horizontal reaction force due to the unbalanced load is reduced to reduce the guide tool's wear. This has the effect of facilitating maintenance and reducing the noise caused by wear of the guides, thus making the installation environment of the elevator quieter.

Further, as described above, the invention according to claim 2 of the present invention is a counterweight which is assembled in a frame shape having a space above the lower beam and in which a guide tool is mounted at a corner. With respect to the center of gravity of the counterweight, which is provided at the center of the front side of the counterweight and is disposed on the lower surface of the lower beam, the buffer cradle for collision reception and the upper edge of the counterweight are engaged. A plurality of main ropes arranged at a position that does not generate a moment and suspending a counterweight, and inserted into the lower beam of the counterweight and connected to a rope stop beam provided in a space above the lower beam,
There are provided a plurality of suspension joints arranged on both sides of the buffer cradle and suspended from positions where no moment is generated with respect to the center of gravity of the counterweight.

Accordingly, the counterweight is suspended by the main rope at a position where no moment is generated in the center of gravity of the counterweight. Furthermore, it is inserted into the lower beam of the counterweight and is connected to the ropes that are installed in the space above the lower beam.The center of gravity of the counterweight is placed on both sides of the buffer pedestal of the lower beam of the counterweight. The suspended compound body is suspended at a position where no moment is generated in. Therefore, there is an effect of the invention according to the first aspect of the present invention and an effect of facilitating the arrangement of the balance weight shock absorber and the balance vehicle.

Further, as described above, the invention according to claim 3 of the present invention is a counterweight which is assembled in the shape of a frame having an empty space and in which a guide is attached to a corner, and the counterweight. A plurality of main ropes that are engaged with the upper edge portion of the fastening portion and the fastening portion is disposed in the upper space and that is arranged at a position that does not generate a moment with respect to the center of gravity of the counterweight and that suspends the counterweight. A plurality of balancing compound that is inserted from the lower beam of the counterweight and the fastening part is placed in the lower space and hangs from a position that does not generate a moment with respect to the center of gravity of the counterweight,
A long hole provided on one side of the edge portion and one long hole long on the other side of the edge portion in the disengagement movement direction of the round hole are provided,
A cover plate is provided at an opening of the cover for covering the empty space of the counterweight, and the cover plate is fastened to the cover with a head screw through a daruma hole and an elongated hole.

As a result, the balance weight is hung by the main rope at a position where no moment is generated at the center of gravity of the counterweight, and the balance compound is suspended at a position where no moment is generated at the center of gravity of the counterweight. Be sent down. In addition, the cover plate that is placed on the cover that covers the empty space of the counterweight and covers the opening of the cover that corresponds to the fastening part of the main rope and the thread-locking body is attached by the head screw through the dull hole and the slot. Fastened to the cover. During the inspection of the main rope and the fastening part of the suspended compound, the cover plate does not disengage from the cover due to the disengagement of the daruma hole, and the cover plate passes along the vertical plane through the slotted head screw. Then, the main rope and the fastening portion of the suspended compound body are opened. Therefore, there is an effect of the invention described in claim 1 of the present invention and an effect of facilitating and making the inspection work of the main ropes and the fastening portion of the suspended compound body safe.

[Brief description of drawings]

FIG. 1 is a front view of a main portion of an elevator counterweight device according to a first embodiment of the present invention.

2 is an enlarged sectional view taken along line BB of FIG.

FIG. 3 is a front view of the main parts of the elevator counterweight device according to the second embodiment of the present invention.

FIG. 4 is a view showing a third embodiment of the present invention, and is a vertical cross-sectional side view of essential parts of an elevator counterweight device corresponding to FIG. 2 described above.

FIG. 5 is a front view of a main portion of an elevator counterweight device according to a fourth embodiment of the present invention.

6 is a perspective view of a cover plate provided on the cover of FIG.

7 is a diagram illustrating an open state of the cover plate of FIG.

FIG. 8 is a view showing a conventional counterweight device for an elevator, and is a longitudinal cross-sectional view of a main part of a hoistway conceptually showing the elevator device.

9 is an enlarged front view of the counterweight shown in FIG.

FIG. 10 is an exploded perspective view of a main part of the counterweight shown in FIG. 9.

11 is an enlarged view of an essential part of a cross section taken along the line AA of FIG.

12 is a plan view showing a cover of an upper space of the counterweight shown in FIG. 9. FIG.

[Explanation of symbols]

 2 Main ropes 5 Balancing weights 7 Guide tools 12 Lower beams 19 Buffer pedestals 22 Balancing joints 26 Spaces 27 Tether beams 29 Covers 31 Openings 32 Cover plates 33 Daruma holes 34 Long holes 35 Head screws

Claims (3)

[Claims] 1. A counterweight assembled to which a guide tool is attached, and a counterweight which is engaged with an upper edge of the counterweight and is arranged at a position where no moment is generated with respect to the center of gravity of the counterweight. A plurality of main ropes suspended from the counterweight, and a plurality of suspenders connected to the lower edge of the counterweight and suspended from a position that does not generate a moment with respect to the center of gravity of the counterweight. Elevator counterweight device equipped with a compound body. 2. A counterweight, which is assembled in a frame shape having a space above a lower beam and has a guide member attached to a corner thereof, and the counterweight is provided at the center of the front direction of the counterweight. A shock-absorbing pedestal arranged on the lower surface of the lower beam and a position that does not generate a moment with respect to the center of gravity of the counterweight by being engaged with the upper edge of the counterweight. A plurality of main ropes suspending a weight and a lower beam of the counterweight are connected to a rope stop beam provided in the empty space and are arranged on both sides of the buffer pedestal. An elevator counterweight device that is equipped with a plurality of balance members suspended from a position that does not generate a moment with respect to the center of gravity of the counterweight. 3. A counterweight, which is assembled in a frame shape having an empty space and in which a guide tool is mounted at a corner, and a fastening portion which is engaged with an upper edge portion of the counterweight and is above the empty space. Are arranged so that a moment does not occur with respect to the center of gravity of the counterweight, and a plurality of main ropes suspending the counterweight are inserted into the lower beam of the counterweight, and A plurality of suspension joints suspended from a position where a fastening portion is arranged in the void and does not generate a moment with respect to the center of gravity of the counterweight, a counterbored hole provided on one side of the edge portion, and the above One long hole that is long in the disengagement movement direction of the above-mentioned daruma hole is provided on the other side of the rim, and it is arranged in the opening of the cover that covers the above-mentioned void, and the headed screw is inserted through the above-mentioned daruma hole and the long hole Elevator balance with cover plate fastened to the cover by Mori device.