JP2017171458A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device which has a constitution which is simple and does not require an excess installation space, which secures sufficient mass of a balance weight, and which can prevent falling of the balance weight.SOLUTION: An elevator device includes: a car which moves up/down in a hoistway; a balance weight which moves up/down with the car; a main rope in which one end is connected to the car and the other end is connected to the balance weight; and a hoisting machine having a sheave around which the main rope is wound. The balance weight has a constitution in which a laminate in which a plurality of balance weight pieces are laminated is held in a balance weight frame. At least one out of the plurality of balance weight pieces is fixed to the balance weight frame.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an elevator apparatus, and in particular, it is possible to prevent a counterweight held in a counterweight frame from being deformed by a vibration due to an earthquake or the like and falling off the counterweight frame. The present invention relates to an elevator apparatus having a special configuration.

  A counterweight of an elevator apparatus is generally a fishing rod having a pair of vertical frames, an upper frame provided over the upper end of each vertical frame, and a lower frame provided over the lower end of each vertical frame. It is laminated and held inside the weight frame. In such a configuration, there is a possibility that the pair of vertical frames bend and deform in a direction in which the pair of vertical frames expand from each other due to horizontal shaking (horizontal vibration) caused by a horizontal earthquake or the like, and the counterweight may fall off. As a countermeasure, it is effective to install a counterweight frame fixing member (connection member) that fixes a pair of vertical frames in the vicinity of the intermediate portion in the height direction where the amount of deflection of the vertical frame is maximized as an earthquake resistant device.

  For example, in Patent Document 1, a connection body that is provided over the respective intermediate portions in the height direction of a pair of vertical frames and has a front connection body and a rear connection body so as to surround a counterweight, and a connection body are provided. A counterweight seismic device having a bolt for fixing to each vertical frame is disclosed.

  Further, in Patent Document 2, a mounting base provided between a pair of adjacent counterweights among a plurality of counterweights arranged in the height direction and a pair of vertical frames are provided, The structure provided with the connection member for vertical frames which passes between between a pair of said counterweight provided with the said mounting base is disclosed.

JP 2008-143655 A JP2015-54769A

  However, in the configuration of Patent Document 1, since the connecting member is arranged so as to surround the counterweight, a sufficient installation space is provided for the clearance between the counterweight and the carriage and the clearance between the counterweight and the hoistway wall. If there is no, there was a possibility that the seismic device could not be installed.

  Further, in the configuration of Patent Document 2, the problem of Patent Document 1 described above does not occur, but the structure of the mounting base and the connecting member for the vertical frame is special and complicated. Also, because the installation of the mounting base and the connecting member for the vertical frame creates an empty space in the counterweight frame, even if the counterweight is loaded to the upper limit of the counterweight frame, it can function as a counterweight. There was a possibility that a sufficient mass could not be secured.

  In view of the above circumstances, the present invention has a structure that is simple and does not require an extra installation space, ensures a sufficient mass of the counterweight, and prevents the counterweight from falling off. I will provide a.

  In order to achieve the above object, the present invention provides a car that moves up and down the hoistway, a counterweight that moves up and down with the car, and a main rope that has one end connected to the car and the other end connected to the counterweight. And a hoisting machine having a sheave around which the main rope is wound, and the counterweight is a laminate in which a plurality of counterweight pieces are stacked is held by a counterweight frame. There is provided an elevator apparatus characterized in that at least one of the plurality of counterweight pieces is fixed to the counterweight frame.

  According to the present invention, there is provided an elevator apparatus that has a structure that is simple and does not require extra installation space, can secure a sufficient mass of a counterweight, and can prevent the counterweight from falling off. be able to.

  Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

It is a front view which shows typically an example of the elevator apparatus which concerns on this invention. FIG. 2 is an enlarged view of a portion X in FIG. 1. It is an enlarged view of the Y part of FIG. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is a schematic diagram which shows an example of the shape of the counterweight piece of FIG. It is a schematic diagram which shows the other example of the shape of the counterweight piece of FIG. It is a figure which shows a part (part corresponded to Y part of FIG. 2) of the counterweight of the elevator apparatus which concerns on Example 2. FIG. It is sectional drawing along the BB line of FIG. 6 is a schematic diagram illustrating an example of a counterweight according to Example 3. FIG. 6 is a schematic diagram illustrating another example of a counterweight according to Embodiment 3. FIG.

  Hereinafter, an elevator apparatus according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a front view schematically showing an example of an elevator apparatus according to the present invention. As shown in FIG. 1, an elevator apparatus 10 according to the present invention includes a car 11 that moves up and down a hoistway 15, a counterweight 3 that moves up and down together with the car 11, one end connected to the car 11, and the other end Has a main rope 12 connected to the counterweight 3 and a hoisting machine 13 having a sheave around which the main rope 12 is wound. The car 11 and the counterweight 3 are moved up and down along the guide rails 14 and 1 via guide devices (shown in FIG. 2 described later).

  FIG. 2 is an enlarged view of a portion X in FIG. As shown in FIG. 2, the counterweight 3 has a configuration in which a stacked body in which a plurality of counterweight pieces 30 are stacked is held by the counterweight frame 2. The counterweight frame 2 includes a pair of vertical frames 21 extending in the height direction (the lifting and lowering direction of the counterweight 3), an upper frame 22 connecting the upper ends of the pair of vertical frames 21, and a pair of vertical frames. It has the lower frame 23 which connects each lower end part of the frame 21. Guide devices 4 are provided at both upper and lower ends of the vertical frame 21 and engaged with the guide rail 1. The counterweight frame 2 moves up and down along the guide rail 1 via the guide device 4. The plurality of counterweight pieces 30 are stacked and disposed on the lower frame 23 in the height direction.

  3 is an enlarged view of a portion Y in FIG. 2, and FIG. 4 is a cross-sectional view taken along the line AA in FIG. As shown in FIGS. 3 and 4, in this embodiment, one of the stacked counterweight pieces 30, that is, the counterweight piece 31 positioned in the middle of the stacked body is a through hole (hereinafter referred to as a through hole (hereinafter referred to as a counterweight piece)). , Referred to as “balanced weight piece through hole”) 32. A long hole (hereinafter referred to as “vertical frame through hole”) 33 is also provided at a position corresponding to the counterweight piece through hole 32 of the vertical frame 21. Bolts 34 are passed through the above-described through holes 32 and 33, and one end of the bolt 34 is fixed with a nut 35. In the elevator apparatus according to the present embodiment, the counterweight 31 having the through hole 32, the vertical frame 21 having the through hole 33, the bolt 34, and the nut 35 fix the counterweight frame 2 and prevent deflection deformation. A counterweight frame fixing member 40 is configured. The counterweight frame fixing member 40 fixes (connects) the pair of vertical frames 21, so that even if the counterweight frame 2 vibrates due to an earthquake or the like, a pair of vertical frames constituting the counterweight frame 2. It is possible to prevent the frame 21 from being bent and deformed in the direction in which the frame 21 spreads. As a result, it is possible to prevent the counterweight piece 30 from falling off the counterweight frame 2.

  Moreover, in order to use one of the counterweight pieces as one of the constituent members of the counterweight frame fixing member 40, the counterweight frame fixing member 40 for installing the counterweight frame fixing member 40 as described in the above-mentioned patent document. There is no problem of securing the arrangement space and mass around the counterweight. The counterweight 31 that constitutes the counterweight frame fixing member 40 is also referred to as a “constituent member 31 of a counterweight / combined counterweight frame fixing member”. Thus, the counterweight piece has not been used as a constituent member of the counterweight frame fixing member 40 in the past, and in this way, the counterweight frame fixing member 40 can be obtained from Patent Documents 1 and 2 described above. The structure can be made simple and does not require extra installation space.

  5 is a schematic diagram showing an example of the shape of the counterweight piece 30 of FIG. 4, and FIG. 6 is a schematic diagram showing another example of the shape of the counterweight piece of FIG. As shown in FIGS. 5 and 6, the counterweight piece 30 generally has a shape having protrusions 37 and 37 ′ at the end, and the protrusions 37 and 37 ′ are fitted to the vertical frame 21, The counterweight piece 30 is configured to be held by the weight frame 2. In the present embodiment, counterweight piece through holes 32 are provided in the protrusions 37 and 37 ′. The shape of the protrusion of the counterweight piece 30 is not particularly limited, and may be trapezoidal when the counterweight piece 30 is viewed from the front as shown in FIG. It may be a rectangle as shown in FIG. Further, the shape of the counterweight piece 30 is not particularly limited. As a method of forming the counterweight piece through-hole 32, if the counterweight piece 30 is a casting, it can be formed by installing a core at a portion that contacts the counterweight piece through-hole 32 during casting. If the counterweight piece 30 is an iron plate, it can be formed by machining.

  The component 31 of the counterweight frame fixing member that also serves as the counterweight has the same cross-sectional shape as the other counterweight pieces 30 or has a cross-sectional shape that fits within the cross-sectional shape of the other counterweight pieces 30. It is preferable. That is, the component 31 of the counterweight frame fixing member that also serves as the counterweight has the same shape as the other counterweight pieces 30 except that it has the counterweight piece through-hole 32, and other counterweights. It is preferable that it is the same size as the piece 30 or smaller than the other counterweight pieces 30. The construction of the counterweight frame fixing member 40 can be facilitated by configuring the constituent member 31 of the counterweight frame fixing member combined with the counterweight only by providing a through hole in the other counterweight piece 30. The problem of securing the arrangement space and the mass does not occur. On the other hand, the height may be the same as or different from the other counterweight pieces 30 and may be determined in consideration of the manufacturing convenience of providing the through hole.

  7 is a view showing a part of a counterweight of the elevator apparatus according to the second embodiment (a portion corresponding to the Y portion in FIG. 2), and FIG. 8 is a cross-sectional view taken along the line BB in FIG. . In this embodiment, the configuration of the counterweight frame fixing member is different from that of the first embodiment. In this embodiment, the counterweight piece 31 is fixed to the vertical frame 21 by the band 36. In other words, the band 36 fixes the pair of vertical frames 21 via the counterweight pieces 31. Even with such a configuration, the same effect as in the first embodiment can be obtained. Any band may be used as long as it can be firmly bound.

  FIG. 9 is a schematic diagram illustrating an example of a counterweight according to the third embodiment. FIG. 10 is a schematic diagram illustrating another example of the counterweight according to the third embodiment. In FIG. 9 and 10, the component 31 of the counterweight combined use balance weight frame fixing member is shown with the oblique line. The present embodiment is different from the first embodiment in that the position of the counterweight piece to be the constituent member 31 of the counterweight combined balance weight frame fixing member is changed. In Example 1, the position of the constituent member 31 of the counterweight frame fixing member that is also used as the counterweight is provided in the middle of the laminated body of the counterweight 3, but the present invention is not limited to this, and the vertical frame 21 is long. For example, the position and number of the counterweight pieces 31 may be adjusted.

  For example, as shown in FIG. 9, you may provide in the intermediate position of the laminated body of the counterweight 3, and the both ends (upper end and lower end) of a laminated body. Further, as shown in FIG. 10, the laminated body may be provided at a position where it is divided into three equal parts. In the present invention, the laminated body of the counterweights 3 may be provided with at least one component member 31 of the counterweight-combined counterweight frame fixing member. The deflection deformation of the vertical frame 21 can be sufficiently suppressed by providing the counterweight 31 at a position in the middle of the laminate as in the first embodiment, but a plurality of them are provided as in FIGS. 9 and 10. Thus, the effects of the present invention can be further obtained.

  As described above, according to the present invention, it has a simple structure that does not require an extra installation space, can secure a sufficient mass of the counterweight, and prevent the counterweight from falling off. Possible elevator devices can be provided.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Counterweight guide rail, 2 ... Counterweight frame, 21 ... Vertical frame, 22 ... Upper frame, 23 ... Lower frame, 3 ... Counterweight, 30, 30a, 30b ... Counterweight piece, 31 ... A counterweight piece fixed to the vertical frame (a component of the counterweight frame fixing member that also serves as a counterweight), 32 ... a counterweight piece through hole, 33 ... a vertical frame through hole, 34 ... a bolt, 35 ... a nut, 36 ... Band, 37, 37 '... Projection, 40 ... Balance weight frame fixing member, 4 ... Guide device, 10 ... Elevator device, 11 ... Ride car, 12 ... Main rope, 13 ... Hoisting machine, 14 ... Ride car Guide rail, 15 ... hoistway.

Claims (8)

A car that moves up and down the hoistway, a counterweight that moves up and down with the car, a main rope that has one end connected to the car and the other end connected to the counterweight, and the main rope is wrapped around A hoisting machine having a sheave, and an elevator device comprising:
The counterweight has a configuration in which a laminated body in which a plurality of counterweight pieces are stacked is held by a counterweight frame;
The elevator apparatus, wherein at least one of the plurality of counterweight pieces is fixed to the counterweight frame. 2. The elevator apparatus according to claim 1, wherein the counterweight frame includes a pair of vertical frames, an upper frame provided over the upper ends of the pair of vertical frames, and lower ends of the vertical frames. A lower frame provided over the
An elevator apparatus, wherein at least one of the counterweight pieces is fixed to the vertical frame.   The elevator apparatus according to claim 2, wherein the counterweight piece through hole provided in at least one end of the counterweight piece and the counterweight piece through hole of the vertical frame are located at positions corresponding to the counterweight piece through hole. An elevator apparatus comprising: a vertical frame through hole provided; a bolt inserted into the counterweight piece through hole and the vertical frame through hole; and a nut fastened to one end of the bolt.   The elevator apparatus according to claim 2, further comprising a band that fixes at least one of the counterweight pieces and the vertical frame.   2. The elevator apparatus according to claim 1, wherein the counterweight piece fixed to the vertical frame has the same cross-sectional shape as the other counterweight pieces of the counterweight, or the other counterweight. An elevator apparatus having a cross-sectional shape that fits within a cross-sectional shape of a counterweight piece.   The elevator apparatus according to any one of claims 1 to 5, wherein the counterweight piece fixed to the vertical frame is a counterweight piece positioned in the middle of the laminated body. apparatus.   In the elevator apparatus of any one of Claim 1 thru | or 5, the said balance weight piece fixed to the said vertical frame is the balance weight piece located in the middle of the said laminated body, and the both ends of the said laminated body. An elevator apparatus characterized by being a counterweight piece positioned.   In the elevator apparatus of any one of Claim 1 thru | or 5, The said balance weight piece fixed to the said vertical frame is a balance weight piece of the position which divides the said laminated body into 3 equal parts, It is characterized by the above-mentioned. Elevator equipment to do.

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