JP2015000769A - Car for elevator, and car installation method of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car for an elevator, and a car installation method of the elevator, allowing reduction of a time of installation work by improving workability of the installation work.SOLUTION: A car 2 for an elevator includes: a car floor 7; and a pair of car frame side face units 20 provided in both end parts of the car floor 7. Each car frame side face unit 20 has: a side face frame 23 including a lower beam 26 attached to the car floor 7, a pair of longitudinal pillars 27, 28 whose lower end parts are provided in both end parts of the lower beam 26, and which are disposed at distance from each other, and an upper beam 29 provided between upper end parts of the pair of longitudinal pillars 27, 28; a lower guide device 24 provided in the lower beam 26, and determining a position of the lower beam 26 to a guide rail 1 about a direction along the lower bean 26; and an upper guide device 25 provided in the upper beam 29, and determining a position of the upper beam 29 to the guide rail 1 about a direction along the upper beam 29.

Description

  The present invention relates to an elevator car and an elevator car installation method.

  Conventionally, the lower frame is fixed between the lower end portions of the left and right standing frames, the upper frame is fixed between the upper end portions of the left and right standing frames, and guide devices are provided above and below the left and right standing frames, respectively. An elevator car frame structure is known. The car frame is fitted with guide devices previously provided on the top and bottom of the left and right standing frames to the guide rail, and then the lower frame is fixed between the lower ends of the left and right standing frames, and between the upper ends of the left and right standing frames. It is formed by fixing the upper frame to (see, for example, Patent Document 1).

JP 2001-114485 A

  However, in the conventional elevator car frame shown in Patent Document 1, the installation position of the standing frame can be determined by fitting the guide device to the guide rail, but the upper frame, the lower frame and the car floor are fixed. There is a problem that the adjustment work for leveling cannot be easily performed. As a result, it takes time to install the car.

  The present invention has been made to solve the above-described problems, and provides an elevator car and an elevator car installation method capable of improving the workability of installation work and reducing the time of installation work. The purpose is to obtain.

  The elevator car according to the present invention includes a car floor and a pair of car frame side units provided at both ends of the car floor, and each car frame side unit includes a lower beam and a lower beam attached to the car floor. A side frame including a pair of vertical columns provided at lower ends at a distance from each other and spaced apart from each other, and an upper beam provided between the upper ends of the pair of vertical columns, and a lower beam. A lower positioning part that determines the position of the lower beam with respect to the guide rail in the direction along the lower beam, and an upper positioning part that is provided on the upper beam and determines the position of the upper beam with respect to the guide rail in the direction along the upper beam. doing.

  According to the elevator car and the elevator car installation method according to the present invention, the side frame is installed while positioning the lower positioning part and the upper positioning part provided in advance in the lower beam and the upper beam with respect to the guide rail. Can do. Thereby, the positioning operation | work of the side frame with respect to a guide rail can also be performed simultaneously with the installation operation | work of a side frame. Further, by arranging the car floor along the lower beam when attaching the car floor to each lower beam, the work of leveling the car floor can be performed simultaneously with the work of mounting the car floor. Thereby, the workability of the car installation work can be improved, and the time for the car installation work can be shortened.

It is a perspective view which shows the cage | basket | car by Embodiment 1 of this invention. FIG. 2 is a perspective view showing a car frame, a car floor, and a car ceiling in FIG. 1. It is a perspective view which shows the cage frame side surface unit of FIG. It is a perspective view which shows the state by which the car support beam of FIG. 2 was arrange | positioned between a pair of guide rails. FIG. 5 is a perspective view showing a state in which a car frame side unit is placed on the car support beam of FIG. 4. It is a perspective view which shows the state by which the side wall is attached to the side frame of the cage frame side unit by Embodiment 2 of this invention.

Embodiment 1 FIG.
1 is a perspective view showing a car according to Embodiment 1 of the present invention. FIG. 2 is a perspective view showing the car frame, the car floor, and the car ceiling of FIG. In the figure, a pair of guide rails 1 are installed in the hoistway. A car 2 is provided between the pair of guide rails 1. The pair of guide rails 1 oppose each other in the width direction of the car 2. A car doorway 3 is provided on the front surface of the car 2. The frontage direction of the car doorway 3 coincides with the width direction of the car 2.

  The car 2 is suspended in the hoistway by a plurality of main ropes (not shown) (for example, ropes or belts). The main rope is wound around a driving sheave of a hoisting machine (not shown). The driving sheave is rotated by the driving force of the hoisting machine. The car 2 is moved in the vertical direction along each guide rail 1 by the rotation of the driving sheave.

  The car 2 includes a car support beam 4 (FIG. 2) provided horizontally between the pair of guide rails 1 and a car room 5 supported on the car support beam 4. The car room 5 is provided in each of the car frame 6, the car floor 7 provided in the lower part of the car frame 6, the car ceiling 8 provided in the upper part of the car frame 6, and the car frame 6. It has a pair of side walls (side panels) 9 that form both side surfaces, and a back wall (back panel) that is provided on the car frame 6 and forms the back of the car room 5.

  The car entrance 3 is opened and closed by a door device. A door device mounting portion (door device mounting portion) 10 is provided at an upper portion of the car entrance 3. The door device attachment portion 10 is attached to the car frame 6. A door stop column 11 is provided at one end of the car doorway 3 in the frontage direction, and a door pocket column 12 is provided at the other end of the car doorway 3 in the frontage direction. Further, a curtain plate 13, which is a decorative plate exposed in the car room 5, is provided above the car doorway 3.

  The portion of the car floor 7 located at the lower part of the car doorway 3 is a sill mounting step 7a as shown in FIG. As shown in FIG. 1, a car sill 14 fixed to the sill mounting step 7 a is arranged along the frontage direction of the car doorway 3 at the lower part of the car doorway 3. An apron 15 as a protective plate is provided on the end face of the car sill 14 on the landing side.

  The car support beam 4 is arranged along the width direction of the car 2. Emergency stops 16 are provided at both ends in the longitudinal direction of the car support beam 4. The emergency stop 16 is provided with an operation lever. Each emergency stop 16 performs an operation of gripping the guide rail 1 by operating the operation lever. The car 2 is stopped and held with respect to the guide rail 1 by the gripping operation of each emergency stop 16. In addition, the car support beam 4 is provided with a pair of suspension wheels 17 around which the main rope is wound.

  The car frame 6 includes a pair of car frame side units 20 disposed at both ends of the car floor 7 in the width direction of the car 2, and connecting beams 21 that connect the upper ends of the pair of car frame side units 20. It has a tether 22 (a plurality of connecting members 21, 22).

  FIG. 3 is a perspective view showing the car frame side unit 20 of FIG. The car frame side unit 20 includes a side frame 23, a lower guide device (upper positioning portion) 24 provided at the lower portion of the side frame 23, and an upper guide device (upper positioning portion) 25 provided at the upper portion of the side frame 23. And have.

  The side frame 23 includes a lower beam 26 fixed on the car support beam 4, a pair of vertical columns 27 and 28 having lower ends provided at both ends of the lower beam 26, and a pair of vertical columns 27 and 28. And an upper beam 29 attached between the respective upper ends.

  The lower beam 26 and the upper beam 29 are arranged along the depth direction of the car 2. The pair of vertical columns 27 and 28 are arranged away from each other in the depth direction of the car 2. The vertical columns 27 and 28 are arranged perpendicular to the lower beam 26 and the upper beam 29, respectively. In this example, of the pair of vertical columns 27, 28, the vertical column 27 disposed at a position close to the car doorway 3 is a front column, and the vertical column 28 disposed at a position away from the car doorway 3 is a rear column. It is said that.

  The lower guide device 24 is provided on the lower beam 26, and the upper guide device 25 is provided on the upper beam 29. As shown in FIG. 2, the lower guide device 24 and the upper guide device 25 are disposed so as to be slidable with respect to the guide rail 1 while being fitted to the protruding portion of the guide rail 1. The position of the lower beam 26 with respect to the guide rail 1 in the depth direction of the car 2 (the direction along the lower beam 26) is determined by the lower guide device 24 fitting into the protruding portion of the guide rail 1, and the depth direction ( The position of the upper beam 29 with respect to the guide rail 1 in the direction along the upper beam 29 is determined by fitting the upper guide device 25 into the protruding portion of the guide rail 1.

  The lower guide device 24 and the upper guide device 25 are respectively arranged on a common virtual straight line parallel to the pair of vertical columns 27 and 28. Thus, in a state where the lower guide device 24 and the upper guide device 25 are fitted to the guide rail 1, the pair of vertical columns 27 and 28 are parallel to the guide rail 1, and the lower beam 26 and the upper beam 29 are connected to the guide rail 1. It is arranged vertically with respect to it. The guide rail 1 is disposed along the vertical direction. Therefore, in a state where the lower guide device 24 and the upper guide device 25 are fitted to the guide rail 1, the longitudinal direction of the pair of vertical columns 27 and 28 is a vertical direction, and the longitudinal direction of each of the lower beam 26 and the upper beam 29 is Is level.

  The distance from the threshold installation step 7a to the lower guide device 24 in the depth direction of the car 2 is a predetermined distance (set distance). Thereby, when the lower guide device 24 and the upper guide device 25 are fitted to the guide rail 1, the position of the car floor 7 with respect to the guide rail 1 in the depth direction of the car 2 is automatically determined.

  The lower guide device 24 and the upper guide device 25 each have a guide shoe that contacts the guide rail 1 and an elastic body (for example, a spring or rubber) that presses the guide shoe against the guide rail 1. The distance of the side frame 23 to the guide rail 1 changes due to elastic deformation of the elastic bodies of the lower guide device 24 and the upper guide device 25.

  The connecting beam 21 and the connecting metal 22 are disposed between the upper beams 29. Further, the connecting beam 21 and the connecting metal 22 receive the elastic restoring force of the elastic body of each upper guide device 25 from both sides in the width direction via the upper beams 29. Further, the connecting beam 21 and the connecting metal 22 connect the upper beams 29 to each other. The connecting beam 21 is attached to the middle portion in the longitudinal direction of each upper beam 29, and the tether 22 is attached to the end of each upper beam 29 on the side away from the car entrance 3. Further, the connecting beam 21 is arranged on a straight line (in this example, a straight line along the width direction of the car 2) connecting the upper guide devices 25 to each other.

  The car floor 7 is disposed between the lower beams 26 along the lower beams 26. Thereby, in a state where the lower guide device 24 and the upper guide device 25 are fitted to the guide rail 1, the car floor 7 is disposed horizontally. In addition, the car floor 7 receives the elastic restoring force of the elastic body of each lower guide device 24 from each side in the width direction via each lower beam 26. Furthermore, the car floor 7 is attached to each lower beam 26.

  The car ceiling 8 is disposed between the upper beams 29 along the upper beams 29. Thereby, in a state where the lower guide device 24 and the upper guide device 25 are fitted to the guide rail 1, the car ceiling 8 is disposed horizontally. The car ceiling 8 is attached to the pair of upper beams 29 and the connecting metal 22.

  The side wall 9 is attached to each side frame 23. The side wall 9 is disposed in a range surrounded by the lower beam 26, the pair of vertical columns 27 and 28, and the upper beam 29. The car back wall is attached to a pair of rear pillars 28, a car floor 7 and a car ceiling 8.

  Next, a method for installing the car 2 will be described. FIG. 4 is a perspective view showing a state in which the car support beam 4 of FIG. 2 is disposed between the pair of guide rails 1. FIG. 5 is a perspective view showing a state in which the car frame side unit 20 is placed on the car support beam 4 of FIG. In the car frame side surface unit 20 before the car is installed, spacers are inserted in advance between the upper guide device 25 and the upper beam 29 and between the lower guide device 24 and the lower beam 26.

  When the car 2 is installed between the pair of guide rails 1, first, as shown in FIG. 4, the car support beam 4 is held horizontally between the pair of guide rails 1. At this time, each emergency stop 6 may be operated to hold the car support beam 4 between the pair of guide rails 1, or the pair of guide rails 1 may be supported by a support (for example, a jack) installed in the pit of the hoistway. The car support beam 4 may be held between them (car support beam installation process).

  Thereafter, as shown in FIG. 5, the pair of car frame side units 20 are placed on the car support beam 4 held between the pair of guide rails 1, and the lower guide device 24 and the upper guide device 25 are attached to the guide rail 1. Fit into the protrusion. Thereafter, the lower beam 26 of the car frame side unit 20 is temporarily fixed to the car support beam 4 with fasteners (bolts or the like) while the side frame 23 is lightly pressed against the guide rail 1. In a state where the lower beam 26 is temporarily fixed to the car support beam 4, the car frame side unit 20 is not completely fixed to the car support beam 4, and if a force is applied to the car frame side unit 20, The side unit 20 can move by a predetermined range on the car support beam 4 (car frame side unit installation process).

  Thereafter, the car floor 7 is inserted between the pair of car frame side units 20, and the car floor 7 is attached to each lower beam 26. At this time, while pushing each side frame 23 toward the guide rail 1 side, the distance between the pair of car frame side units 20 is increased, and the elastic body of the lower guide device 24 is contracted to generate an elastic restoring force in the elastic body. The car floor 7 is inserted between the lower beams 26. At this time, the car floor 7 is disposed along each lower beam 26. Thereafter, each lower beam 26 is pressed against the car floor 7 from both sides by the elastic restoring force of the elastic body of the lower guide device 24, and the car floor 7 is attached to each lower frame 26. Thereafter, the temporarily fixed lower beams 26 are fixed to the car support beam 4 by final fastening of the fasteners (car floor mounting process). Similarly to the attachment of the car floor 7, the connecting beam 21 and the coupling 22 are attached between the upper beams 29.

  After the connecting beam 21 and the connecting plate 22 are attached between the upper beams 29, the car ceiling 8 is inserted between the pair of car frame side units 20, and the car ceiling 8 is attached to the upper beams 29 and the connecting plate 22. At this time, the car ceiling 8 is arranged along each upper beam 29 (car ceiling mounting process).

  Thereafter, the side wall 9 is attached to each side frame 23, and the car back wall is attached to the car floor 7, the car ceiling 8, and each rear pillar 28. Further, the door-to-door pillar 11, the door pocket pillar 12, and the car curtain plate 13 are attached to the side frame 23, and the sill 14 is attached to the sill attachment step 7 a of the car floor 7. After the sill 14 is attached to the sill mounting step 7a, the distance from the sill 14 to the guide rail 1 in the depth direction of the car 2 is measured to confirm whether the installation position of the car 2 is in the correct position. To do.

  Thereafter, the apron 15, the pair of suspension wheels 17, the door device attachment portion 10, the door device, and the like are attached to the car 2. Thereafter, the spacers inserted between the upper guide device 25 and the upper beam 29 and between the lower guide device 24 and the lower beam 26 are extracted. Thereafter, the lower guide device 24 is brought into contact with the lower beam 26 and fastened and fixed, and the upper guide device 25 is brought into contact with the upper beam 29 and fastened and fixed. Thereafter, the main rope is wound around each suspension wheel 17 and the holding of the car support beam 4 between the pair of guide rails 1 is released, whereby the installation work of the car 2 is completed.

  In such an installation method of the car 2 and the car 2, since the lower guide device 24 and the upper guide device 25 are individually provided on the lower beam 26 and the upper beam 29 of the side frame 23, the side frame 23 is installed. Sometimes, the side frame 23 can be installed while fitting the lower guide device 24 and the upper guide device 25 provided in advance on the lower beam 26 and the upper beam 29 to the guide rail 1. Thereby, the positioning operation of the side frame 23 with respect to the guide rail 1 can be performed simultaneously with the installation operation of the side frame 23. In addition, when the car floor 7 is attached to each lower beam 26, the car floor 7 is arranged along the lower beam 26, so that the car floor 7 can be leveled simultaneously with the installation of the car floor 7. it can. Further, when the car ceiling 8 is attached to each upper beam 29, the car ceiling 8 is arranged along the upper beam 29, so that the car ceiling 8 can be leveled simultaneously with the installation work of the car ceiling 8. it can. For this reason, the workability of the installation work of the car 2 can be improved, and the time for the installation work of the car 2 can be shortened.

  Moreover, since the door apparatus mounting part 10 is being fixed to the side frame 23, a door apparatus can be installed on the basis of the side frame 23 already positioned with respect to the guide rail 1. FIG. Thereby, even when the door device is directly attached to the door device attaching portion 10, the position adjustment of the door device with respect to the car 2 can be made unnecessary in the depth direction of the car 2 and the height direction of the car 2, and the door device. The installation work can be facilitated.

  Further, since the side frame 23 is positioned with respect to the guide rail 1 by the lower guide device 24 and the upper guide device 25, it is not necessary to provide a positioning tool separately from the lower guide device 24 and the upper guide device 25. Reduction can be achieved.

  Further, since the lower guide device 24 and the upper guide device 25 have an elastic body contracted between the guide rail 1 and the side frame 23, the cage floor is caused by the elastic restoring force of the elastic body of the lower guide device 24. 7, the lower beams 26 can be pressed from both sides, and the car floor 7 can be arranged between the lower beams 26 without any gap. Further, the upper beams 29 can be pressed against the connecting beams 21 from both sides by the elastic restoring force of the elastic body of the upper guide device 25, and the connecting beams 21 can be arranged between the upper beams 29 without any gaps. . Thereby, for example, even when the fastening portion between each lower beam 26 and the car floor 7 is slightly loosened, the load transmission from one lower beam 26 to the other lower beam 26 is transmitted through the car floor 7. Even when the fastening portion between each upper beam 29 and the connecting beam 21 is slightly loosened, the transmission of the load from one upper beam 29 to the other upper beam 29 can be performed. 21 can be performed more reliably. Therefore, the load is supported by only one of the lower beams 26 and the other of the upper beams 29 against the eccentric load in the width direction (left-right direction) of the car 2 (for example, the left lower beam 26 and the upper right beam). The car floor 7 and the connecting beam 21 are not attached to the other beams of the lower beams 26 and one of the upper beams 29 (for example, the lower beam 26 on the right side and the upper beam 29 on the left side). The load can be transmitted through each of the lower beams 26 and the upper beams 29. As a result, it is not necessary to provide a friction holding function for preventing looseness in the fastening portion between each lower beam 26 and the car floor 7 and the fastening portion between each upper beam 29 and the connecting beam 21, and each fastening portion. The structure can be simplified.

  Here, if the pressing force of each of the lower guide device 24 and the upper guide device 25 with respect to the guide rail 1 remains large, the lower guide device 24 and A large frictional force is generated between each of the upper guide devices 25 and the guide rail 1. Therefore, when the car 2 travels, a sliding loss due to the frictional force generated between each of the lower guide device 24 and the upper guide device 25 and the guide rail 1 becomes large.

  In the above example, since the spacer inserted between the lower guide device 24 and the lower beam 26 is removed after the car 2 is installed, the lower guide device 24 is lightly touching the guide rail 1 or the lower guide. A slight gap may exist between the device 24 and the guide rail 1. Similarly, since the spacer inserted between the upper guide device 25 and the upper beam 29 is also extracted after the car 2 is installed, the upper guide device 25 is lightly touching the guide rail 1 or the upper guide device 25 A slight gap may exist between the guide rail 1 and the guide rail 1. Thus, the frictional force generated between each of the upper guide device 25 and the lower guide device 24 and the guide rail 1 can be reduced, and when the car 2 travels, each of the upper guide device 25 and the lower guide device 24 can be reduced. The sliding loss due to the frictional force generated between the guide rail 1 and the guide rail 1 can be reduced.

Embodiment 2. FIG.
In the first embodiment, the side wall 9 is attached to the side frame 23 after each car frame side unit 20 is installed on the car support beam 4, but each car frame side unit 20 is mounted on the car support beam 4. Before the installation, the side wall 9 is attached to the side frame 23, and the car frame side unit 20 may be installed on the car support beam 4 with the side wall 9 attached to the side frame 23.

  FIG. 6 is a perspective view showing a state in which the side wall 9 is attached to the side frame 23 of the car frame side unit 20 according to the second embodiment of the present invention. In the second embodiment, the side wall 9 is previously attached to the car frame side unit 20 at the factory. The side wall 9 is composed of one or a plurality of wall panels, and the wall panel itself is formed into a substantially rectangular shape by plate bending of the same component. For this reason, when assembling the side frame 23 to which the side wall 9 is attached, the lower beam 26, the pair of vertical columns 27 and 28, and the upper beam 29 are arranged around the side wall 9 on the basis of the four sides of the side wall 9. Easy to place. Accordingly, the lower beam 26 and the upper beam 29 can be arranged in parallel, and the pair of vertical columns 27 and 28 can be easily arranged perpendicular to the lower beam 26 and the upper beam 29, and the side frame 23. Assembling becomes easy.

  When installing the car 2 between the pair of guide rails 1, first, the car support beam 4 is held horizontally between the pair of guide rails 1 in the same manner as in the first embodiment (car support beam installation step).

  Thereafter, the pair of car frame side units 20 to which the side walls 9 are respectively attached are placed on the car support beam 4, and the lower guide device 24 and the upper guide device 25 are fitted to the protruding portions of the guide rail 1. Thereafter, the lower beam 26 of the car frame side unit 20 is temporarily fixed to the car support beam 4 with a bolt or the like while the side frame 23 is lightly pressed against the guide rail 1 (car frame side unit installation step). The subsequent procedure is the same as that of the first embodiment except that there is no work for attaching the side wall 9 already attached to the side frame 23.

  In such an installation method of the car 2, the car frame side unit 20 to which the side wall 9 has been attached in advance is placed on the car support beam 4, so that the side of the car frame side unit 20 is placed on the side where the car 2 is installed. The trouble of attaching the wall 9 can be eliminated. Thereby, the time for the installation work of the car 2 can be further shortened.

  In each of the above embodiments, the ceiling, the pair of side surfaces, and the back surface of the car room 5 are formed by the car ceiling 8, the pair of side wall 9 and the car back wall respectively attached to the car frame 6. The ceiling of the car room 5 is not limited to this, and the car ceiling 8, the pair of side walls 9 and the car back wall disposed on the inside of the car frame 6 without being attached to the car frame 6 are installed on the car floor 7. The pair of side surfaces and the back surface may be formed inside the car frame 6.

  In each of the above embodiments, the lower guide device 24 is used as a lower positioning portion. However, a positioning tool (lower positioning portion) separate from the lower guide device 24 may be provided on the lower beam 26. Furthermore, although the upper guide device 25 is used as the upper positioning portion, a positioning tool (upper positioning portion) separate from the upper guide device 25 may be provided on the upper beam 29.

  1 guide rail, 2 car, 3 car doorway, 4 car support beam, 7 car floor, 9 side wall, 20 car frame side unit, 23 side frame, 24 lower guide device (lower positioning part), 25 upper guide device (upper part) Positioning part), 26 Lower beam, 27 Front column (vertical column), 28 Rear column (vertical column), 29 Upper beam.

Claims (6)

A car floor, and a pair of car frame side units provided at both ends of the car floor,
Each of the car frame side surface units includes a lower beam attached to the car floor, a pair of vertical columns provided with lower ends provided at both ends of the lower beam and spaced apart from each other, and a pair of the vertical beams A side frame including an upper beam provided between upper ends of the columns, a lower positioning portion provided on the lower beam, which determines a position of the lower beam with respect to the guide rail in a direction along the lower beam; and the upper An elevator car provided with a beam and having an upper positioning portion that determines a position of the upper beam with respect to the guide rail in a direction along the upper beam.   The elevator car according to claim 1, wherein the lower positioning portion and the upper positioning portion are guide devices that can slide on the guide rail.   The elevator car according to claim 2, wherein the guide device includes an elastic body contracted by elastic deformation between the guide rail and the side frame. 4. A pair of side walls attached to each of the side frames and disposed in a range surrounded by the pair of vertical columns, the upper beam, and the lower beam. The elevator car according to one item. An elevator car installation method for installing the elevator car according to claim 1 between a pair of the guide rails,
A pair of car frame side units are placed on a car support beam arranged between the pair of guide rails, and the car frame side unit is installed so as to align the positions of the upper positioning part and the lower positioning part with respect to the guide rail. And a car floor mounting process for mounting the car floor between the lower beams of the pair of car frame side units after the car frame side unit installation process,
Elevator car installation method.   The elevator car installation method according to claim 5, wherein, in the car frame side unit installation step, the car frame side unit to which a side wall has been attached in advance is placed on the car support beam.

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