JP6037981B2 - Elevator counterweight and elevator device using the same - Google Patents

Description

  The present invention relates to a counterweight of an elevator and an elevator apparatus using the same.

  The elevator includes a carriage and a counterweight that are suspended from each other in a hoistway. In the counterweight, a plurality of counterweight pieces are mounted on the counterweight frame, and the weight of the counterweight is adjusted according to the number of counterweight pieces. The counterweight frame mainly includes a pair of vertical frames, an upper frame that connects the upper ends of the vertical frames, and a lower frame that connects the lower ends of the vertical frames.

  2. Description of the Related Art Conventionally, some counterweights are provided with a fall prevention structure in order to prevent the counterweight frame from being deformed due to the occurrence of rolling due to an earthquake or the like and being deformed and the counterweight pieces falling. For example, in Patent Document 1, an engagement mechanism that provides a function of an anti-seismic member that prevents the counterweight vertical frame from opening, that is, a vertical frame configured to fix the counterweight piece, and the vertical frame is disclosed. By providing a counterweight piece that can be matched, the counterweight frame is prevented from being deformed.

JP 2007-223695 A

However, in the above-mentioned Patent Document 1, it is necessary to provide a special vertical frame configured to fix the counterweight piece, or a dedicated counterweight piece that can be engaged with the vertical frame, and is applied to an existing elevator. In order to do so, there was a problem of requiring major renovation.
The present invention has been made in view of the above points, and an attempt is made to propose an elevator counterweight and an elevator apparatus using the same, which have a simple structure and prevent the counterweight pieces from falling due to the counterweight frame opening. To do.

  In order to solve such a problem, in the present invention, a plurality of counterweight pieces, a fixing member interposed between some counterweight pieces of the plurality of counterweight pieces, the plurality of counterweight pieces, and the A counterweight frame for stacking and storing fixing members, the counterweight frame connecting a pair of vertical frames, an upper frame connecting the upper ends of the vertical frames, and a lower end of the vertical frames An elevator counterweight is provided, wherein the fixing member is provided with claw portions that engage with the outside of a pair of counterweight frames of the counterweight frame. .

  According to such a configuration, the claw portion that engages the outer side of the counterweight frame of the counterweight frame is provided on the fixing member that interposes a part of the counterweight pieces among the plurality of counterweight pieces provided in the counterweight. Provided. If the counterweight rolls due to an earthquake or the like, the vertical frame may be deformed by the load of the counterweight, but the claw part has a fixing member that engages the outside of the vertical frame. The left and right vertical frames are deformed in the same direction. Therefore, in the longitudinal direction of the vertical frame, the distance between the right and left vertical frames of the counterweight is kept constant, and the simple structure prevents the counterweight frame from opening and the counterweight pieces falling. Can do.

  According to the present invention, with a simple structure, the counterweight frame is prevented from opening due to an earthquake or the like, and the counterweight piece is prevented from falling, even if it is an existing elevator device, without requiring a major repair, By using the existing counterweight frame and counterweight piece, it is possible to improve the earthquake resistance.

It is a front view of the counterweight of the elevator which concerns on the 1st Embodiment of this invention. It is a perspective view of the counterweight concerning the embodiment. It is a top view of the counterweight concerning the embodiment. It is a perspective view of the 1st fixing member concerning the embodiment. It is a perspective view of the 2nd fixing member concerning the embodiment. It is a perspective view of the counterweight which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the lamination | stacking state of the 1st fixing member and 2nd fixing member concerning the embodiment. It is a perspective view of the counterweight which concerns on the 2nd Embodiment of this invention. It is a perspective view of the 2nd fixing member concerning the embodiment. It is the schematic of the elevator apparatus concerning each embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
(1) 1st Embodiment FIG. 10: is the schematic of the elevator apparatus concerning each embodiment of this invention. As shown in FIG. 10, the elevator apparatus 100 according to this embodiment includes a hoistway 10, a car 20 and a counterweight 30 provided in the hoistway 10, and the car 20 and the counterweight 30 are mainly used. The ropes 40 are suspended from each other in a slidable manner and are wound around the hoisting machine 50. Then, by driving the main rope 40 by the hoisting machine 50, the car 20 and the counterweight 30 are raised and lowered opposite to each other.

  FIG. 1 is a front view showing a counterweight 30 according to the present embodiment. As shown in FIG. 1, the counterweight 30 includes a counterweight frame 1 and a plurality of counterweight pieces 2 mounted on the counterweight frame 1. The counterweight frame 1 includes a pair of vertical frames 3, an upper frame 4 that connects the upper ends of the vertical frames 3, and a lower frame 5 that connects the lower ends of the vertical frames 3. The vertical frame 3 and the upper frame 4 and the vertical frame 3 and the lower frame 5 are connected by bolts, respectively. A guide device 7 that engages with a pair of guide rails 6 erected on the hoistway of the building is provided at each of an upper end portion and a lower end portion of the vertical frame 3. The lifting and lowering movement of the counterweight 30 is guided by the guide rail 6 and the guide device 7.

  As shown in FIG. 1, the counterweight 30 of the present embodiment is provided with a fixing member 8 provided with a claw portion that engages the outside of the vertical frame 3 between the counterweight pieces 2. ing. The fixing member 8 is interposed in at least a part of the vertical direction of the vertical frame 3, for example, at an intermediate position in the vertical direction of the vertical frame 3. By interposing the fixing member 8 at an intermediate position in the height direction of the frame 3, the counterweight 30 according to the present embodiment causes the counterweight frame 1 to open due to an earthquake or the like, and the counterweight piece 2. Can be prevented from falling.

  Next, details of the fixing member 8 will be described with reference to FIGS. As shown in FIGS. 2 to 5, the fixing member 8 is composed of a first fixing member 81 and a second fixing member 82. The first fixing member 81 includes a claw portion 81 a having an L-shaped cross section that engages with two sides of the vertical frame 3 from one side of the vertical frame 3. The second fixing member 82 includes a claw portion 82 a having an L-shaped cross section that engages with two sides of the vertical frame 3 from the other side of the vertical frame 3. The first fixing member 81 and the second fixing member 82 are formed of thin plates and are interposed between the existing counterweight pieces 2.

  Further, the first fixing member 81 is formed with an upward bent portion 81b and a downward bent portion 81c. The upward bent portion 81b is in contact with one side surface of the counterweight piece 2 adjacent to the upper side. For example, the upward bent portion 81b is formed on the depth side in FIG. 2 or FIG. The downward bent portion 81c is in contact with the other side surface of the counterweight piece 2 adjacent to the lower side.

  Similarly, the second fixing member 82 has an upward bent portion 82b and a downward bent portion 82c. The upward bent portion 82b is in contact with one side surface of the counterweight piece 2 adjacent to the upper side. For example, the upward bent portion 82b is formed on the depth side in FIG. 2 or FIG. The downward bent portion 82c is in contact with the other side surface of the counterweight piece 2 adjacent to the lower side.

  In this manner, the first fixing member 81 is formed with the upward bent portion 81b and the downward bent portion 81c, and the second fixing member 82 is formed with the upward bent portion 82b and the downward bent portion 82c. The member 81 or the second fixing member 82 can be prevented from jumping out in the front-rear direction of the counterweight 30. For example, when the first fixing member 81 and the second fixing member are made of a material that can be easily processed, such as a sheet metal, the upward bent portions 81b and 82b and the downward bent portions 82b and 82c can be easily formed.

  When rolling occurs in the counterweight 30 due to an earthquake or the like, the vertical frame 3 may be deformed by the load of the counterweight piece 2. The vertical frame 3 may be bent to the left and right, for example. However, in the present embodiment, the claw portion 81a and the claw portion 82a are provided in the middle of the counterweight 30 with the fixing member 8 that engages the outside of the vertical frame 3, so that both the left and right vertical frames 3 are attached. They are deformed in the same direction. Therefore, the distance between the right and left vertical frames 3 of the counterweight is kept constant in the longitudinal direction of the vertical frame 3, and the counterweight piece 2 is prevented from falling without causing the counterweight frame 1 to open. can do.

  As described above, the counterweight 30 according to the present embodiment is an intermediate position in the height direction of the counterweight frame 3 and is engaged between the counterweight pieces 2 and the outside of the vertical frame 3. The fixing member 8 provided with the claw portions 81a and 82a is interposed. In the present embodiment, with such a simple structure, it is possible to prevent the counterweight frame 1 from opening due to an earthquake or the like and causing the counterweight piece 2 to fall. Moreover, even if it is an existing elevator, since the fixing member 8 can be easily provided in the middle of the counterweight 30, it is possible to improve the earthquake resistance without requiring major repairs.

  Moreover, in this embodiment, since the existing counterweight frame 1 and the counterweight piece 2 can be used, it becomes possible to implement | achieve a high earthquake-resistant structure at low cost. Furthermore, in the present embodiment, the first fixing member 81 and the second fixing member 82 are formed with bent portions 81b, 81c, 82b, 82c that contact the side surfaces of the adjacent counterweight pieces 2, thereby The first fixing member 81 and the second fixing member 82 are integrated with the counterweight piece 2. Accordingly, it is possible to prevent the first fixing member 81 and the second fixing member 82 from being displaced due to a shake caused by an earthquake or the like and loosening the engagement with the vertical frame 3.

  In FIG. 2, the fixing member 8 is arranged at one place at a substantially intermediate position in the height direction of the frame 3, but is not limited to this example. For example, a required number of fixing members 8 may be arranged at a required location according to the height dimension of the vertical frame 3 or the like.

(2) Second Embodiment Next, a second embodiment will be described. Since the whole structure of the elevator apparatus 100 is the same as that of FIG. 10 and the whole structure of the counterweight 30 is the same as that of FIG. 1, detailed description thereof will be omitted. This embodiment differs from the first embodiment in the configuration of the fixing member 8 interposed between the counterweight pieces 2. Hereinafter, with reference to FIG.6 and FIG.7, the fixing member 8 of this Embodiment is demonstrated. In addition, the same code | symbol is attached | subjected and demonstrated to the structure equivalent to 1st Embodiment.

  As shown in FIGS. 6 and 7, the fixing member 8 according to the present embodiment includes a first fixing member 83 and a second fixing member 84. The first fixing member 83 is formed of a thick plate and includes a claw portion 83 a having an L-shaped cross section that engages with two sides of the vertical frame 3 from one side of the vertical frame 3. The second fixing member is formed of a thick plate and includes a claw portion 84 a having an L-shaped cross section that engages with two sides of the vertical frame 3 from the other side of the vertical frame 3.

  As shown in FIG. 7, the first fixing member 83 and the second fixing member 84 are stacked adjacent to each other, and are connected to each other by a connecting member such as a bolt 85, for example. The bolt 85 is screwed into a screw hole (not shown) formed in the first fixing member 83 and the second fixing member 84 in advance.

  As described above, the counterweight 30 according to the present embodiment has the first fixing member 83 and the second fixing member 84 formed of thick plates stacked adjacent to each other, and is connected by a connecting member such as a bolt 85. By connecting each other, the connection between the first fixing member 83 and the second fixing member 84 is strengthened. As a result, the engagement between the fixing member 8 and the vertical frame 3 is robust, and it is possible to reliably prevent the counterweight frame 1 from opening due to an earthquake or the like and the counterweight piece 2 falling. . Further, the weights of the first fixing member 83 and the second fixing member 84 formed of thick plates are more significantly reflected in the weight of the entire counterweight than the fixing member 8 of the first embodiment described above. Will be. Thereby, falling of the counterweight piece 2 can be prevented, earning the load of the counterweight 30 required.

(3) Third Embodiment Next, a third embodiment will be described. Since the whole structure of the elevator apparatus 100 is the same as that of FIG. 10 and the whole structure of the counterweight 30 is the same as that of FIG. 1, detailed description thereof will be omitted. Although the present embodiment has the same configuration as the counterweight piece of the second embodiment, the connecting member of the fixing member 8 is different from the second embodiment. Hereinafter, with reference to FIG.8 and FIG.9, the fixing member 8 of this Embodiment is demonstrated. In addition, the same code | symbol is attached | subjected and demonstrated to the structure equivalent to 1st Embodiment.

  As shown in FIGS. 8 and 9, the fixing member 8 according to the present embodiment includes a first fixing member 86 and a second fixing member 87. The first fixing member 86 is formed of a thick plate and includes a claw portion 86 a having an L-shaped cross section that engages with two sides of the vertical frame 3 from one side of the vertical frame 3. The second fixing member 87 is formed of a thick plate and includes a claw portion 87 a having an L-shaped cross section that engages with two sides of the vertical frame 3 from the other side of the vertical frame 3.

  As shown in FIG. 9, in the counterweight 30 according to the present embodiment, the first fixing member 86 and the second fixing member 87 are stacked adjacent to each other. Further, a concave portion 87b is provided on the upper portion of the second fixing member 87 located on the upper side of the first fixing member 86, and a convex portion is fitted on the concave portion 87b on the upper portion of the first fixing member 86 located on the lower side. 86b is provided.

  As described above, the counterweight 30 according to the present embodiment has the first fixing member 86 and the second fixing member 87 formed of thick plates stacked adjacent to each other, and the convex portion 86b is formed in the concave portion 87b. By fitting, the connection between the first fixing member 86 and the second fixing member 87 is strengthened. As a result, the engagement between the fixing member 8 and the vertical frame 3 is robust, and it is possible to reliably prevent the counterweight frame 1 from opening due to an earthquake or the like and the counterweight piece 2 falling. .

  Further, in the above-described second embodiment, a gap is generated only at the head portion of the bolt 85 between the second fixing member 84 and the counterweight piece 2 at the top of the second fixing member 84. However, as in the present embodiment, by providing the concave portion 87b on the upper portion of the second fixing member 87, a gap is formed between the second fixing member 87 and the counterweight piece 2 on the upper portion of the second fixing member 87. This makes it possible to make the counterweight more robust.

1 counterweight frame 2 counterweight piece 3 vertical frame 4 upper frame 5 lower frame 8 fixing member 81, 83, 86 first fixing member 81a, 83a, 86a claw portion 81b, 82b upward bent portion 81c, 82c downward bent portion 82, 84, 87 Second fixing member 82a, 84a, 87a Claw portion 85 Bolt (connecting member)
86b Convex part 87b Concave part 10 Hoistway 20 Ride car 30 Counterweight 40 Main rope 50 Hoisting machine 100 Elevator device

Claims (6)

Multiple counterweight pieces,
A fixing member that interposes some of the counterweight pieces among the plurality of counterweight pieces;
A counterweight frame for laminating and storing the plurality of counterweight pieces and the fixing member;
With
The counterweight frame is composed of a pair of vertical frames, an upper frame that connects the upper ends of the vertical frames, and a lower frame that connects the lower ends of the vertical frames,
An elevator counterweight, wherein the fixing member is provided with a claw portion that engages the outside of a pair of vertical frames of the counterweight frame. The fixing member is
A first fixing member formed with a claw portion having an L-shaped cross section that engages with two sides of the vertical frame from one side of the vertical frame;
A second fixing member formed with a claw portion having an L-shaped cross section that engages with two sides of the vertical frame from the other side of the vertical frame;
The elevator counterweight according to claim 1, wherein the elevator counterweight is constituted by: The balance weight of an elevator according to claim 1, wherein the fixing member is provided with a bent portion that abuts against a side surface of the counterweight piece adjacent thereto. The counterweight according to claim 2, wherein the first fixing member and the second fixing member are stacked adjacent to each other and connected to each other by a connecting member. The first fixing member and the second fixing member are stacked adjacent to each other, and one fixing member is provided with a concave portion, and the other fixing member is provided with a convex portion that is fitted into the concave portion. The elevator counterweight according to claim 2, wherein the elevator has a counterweight. An elevator apparatus comprising a hoistway, a car and a counterweight provided in the hoistway, wherein the car and the counterweight are suspended from each other in a suspending manner,
The counterweight is
Multiple counterweight pieces,
A fixing member that interposes some of the counterweight pieces among the plurality of counterweight pieces;
A counterweight frame for laminating and storing the plurality of counterweight pieces and the fixing member;
With
The counterweight frame is composed of a pair of vertical frames, an upper frame that connects the upper ends of the vertical frames, and a lower frame that connects the lower ends of the vertical frames,
The fixing device is provided with a claw portion that engages with the outside of a pair of vertical frames of the counterweight frame.