JP6449423B1 - Work gondola - Google Patents

Abstract

To improve the efficiency of installation work of an elevator apparatus at low cost. A working gondola according to this embodiment is a working gondola used for installation of an elevator apparatus, and includes a base disposed between a pair of guide rails for guiding a car of the elevator apparatus, and a base A pair of uprights that are fixed to the base and move along the guide rails at positions corresponding to the supported work floor and the pair of guide rails, and beams that are installed above the center of gravity of the base that supports the work floor And a pair of support members that extend in a direction perpendicular to the vertical direction from each of the pair of vertical pillars and support both ends of the beam, and a hoisting machine on which a wire that is provided on the beam and suspends the base is wound. Is provided. [Selection] Figure 2

Description

  Embodiments described herein relate generally to a working gondola.

  In the elevator apparatus, a working gondola is used for installation of a guide rail for guiding raising and lowering of a car. This type of gondola includes a base on which a work floor is placed, a pair of uprights provided at positions corresponding to guide rails of an elevator apparatus, and a hoisting machine (wander) for raising and lowering the gondola. For example, the hoisting machine is fixed to a vertical pole fixed to the base. In this case, the lifting center of the gondola is located at the midpoint between the pair of uprights.

  However, the upright pillar is fixed to the base at a position corresponding to the guide rail. For this reason, depending on the position of the guide rail, the center of gravity of the base to which the work floor is fixed and the lifting center may be offset. In this case, the work floor is inclined, and the work posture on the work floor becomes unstable. So, conventionally, the work floor is equipped with a balance weight, or the work floor is expanded or contracted to change the position of the center of gravity of the work floor, bringing the center of gravity of the gondola close to the lifting center and maintaining the level of the work floor. Was.

  However, when the balance weight is arranged on the work floor, workability is deteriorated, and further, the load on the hoisting machine is increased. Moreover, since the work floor that can be expanded and contracted has a complicated structure, there is a problem that the manufacturing cost and running cost of the apparatus increase.

JP 7-41361 A

  An object of the present invention is to realize the efficiency of the installation work of an elevator apparatus at a low cost.

  In order to solve the above problems, a work gondola according to the present embodiment is a work gondola used for installing an elevator apparatus, and a base disposed between a pair of guide rails for guiding a car of the elevator apparatus. A work floor supported by the base, and a pair of standing pillars that are fixed to the base and move along the guide rail at positions corresponding to the pair of guide rails, and are installed above the center of gravity of the base that supports the work floor. A pair of supporting members that extend in a direction perpendicular to the vertical direction and support both ends of the beam, and a wire that is provided on the beam and suspends the base is wound up A machine.

It is a perspective view of an elevator apparatus. It is a perspective view of the gondola 10 used for the installation operation | work of an elevator apparatus. It is a figure which abbreviate | omits a gondola and a work floor and a roof. It is a figure which expands and shows a supporting member. It is a perspective view of a work floor. It is a side view which shows the positional relationship of a base and a work floor. It is a top view which shows the positional relationship of a base and a work floor. It is a figure which shows the modification of a supporting member.

  Hereinafter, the working gondola according to the present embodiment will be described with reference to the drawings. In the description, an XYZ coordinate system including an X axis, a Y axis, and a Z axis that are orthogonal to each other is used as appropriate.

  FIG. 1 is a perspective view of an elevator apparatus 100. The working gondola according to the present embodiment is used for installing the elevator apparatus 100. The elevator apparatus 100 is disposed inside a hoistway 200 provided in a building such as an apartment or a building. As shown in FIG. 1, the elevator apparatus 100 includes a car 131, a counterweight 132, a lift motor 140, guide rails 121 to 124, and a control panel 170.

  Each of the guide rails 121 to 124 is a member whose longitudinal direction is the Z-axis direction. The guide rails 121 and 122 are a pair of members for guiding the car 131 to be movable up and down. The guide rails 123 and 124 are a pair of members for guiding the counterweight 132 so as to be movable up and down. The guide rail 121 and the guide rail 122 are spaced apart in the Y-axis direction. Further, the guide rails 123 and 124 are disposed on the −X side of the guide rails 121 and 122, and are similarly spaced from each other in the Y-axis direction.

  The car 131 is a unit that accommodates passengers and moves up and down the hoistway 200. The car 131 is disposed between the guide rails 121 and 122 and is provided so as to be movable in the vertical direction with respect to the guide rails 121 and 122. A door (not shown) for entering and exiting the inside of the car 131 is provided on the side surface of the car 131.

  The counterweight 132 is provided so as to be movable in the vertical direction with respect to the guide rails 123 and 124. The weight of the counterweight 132 is adjusted to be a predetermined ratio with respect to the weight of the car 131.

  The elevating motor 140 is a motor for elevating the car 131. The elevating motor 140 is disposed above the hoistway 200 so that the rotation axis is parallel to the Y axis. A pulley 142 is fixed to the rotating shaft of the lifting motor 140.

  As shown in FIG. 1, a wire 160 is wound around the pulley 142 of the lifting motor 140. The wire 160 has one end fixed to the car 131 and the other end fixed to the counterweight 132.

  The control panel 170 houses a lift motor 140 and a control device for controlling equipment provided in the car 131. The control panel 170 is electrically connected to equipment provided in the car 31 via a cable 171.

  In the elevator apparatus 100 configured as described above, when the elevating motor 140 rotates forward, the car 131 is raised and the counterweight 132 is lowered. When the lifting motor 140 is reversely rotated, the car 131 is lowered and the counterweight 132 is raised.

  FIG. 2 is a perspective view of the gondola 10 used for the installation work of the elevator apparatus 100. As shown in FIG. 2, the gondola 10 includes a base 20, a work floor 50 placed on the base 20, a pair of uprights 21 attached to the base 20, a beam member 23 disposed above the work floor 50, a beam A support member 22 that supports the member 23, two hoisting machines 25 supported by the beam member 23, and roofs 27 and 28 provided above the work floor 50 are provided.

  FIG. 3 shows the gondola 10 with the work floor 50 and the roofs 27 and 28 omitted. As shown in FIG. 3, the base 20 is, for example, a rectangular member whose longitudinal direction is the Y-axis direction. The base 20 is a member made of H steel or iron plate made of iron or the like.

  The upright column 21 is a member whose longitudinal direction is the vertical direction (Z-axis direction) and whose cross section is U-shaped. A gripping portion 21 a that grips the guide rails 121 and 122 of the elevator apparatus 100 so as to be movable in the vertical direction is formed at the upper end portion and the central portion of the upright column 21. The gripping portion 21a includes a roller 211 that rotates about the Y axis and two rollers 212 that rotate about the X axis. The roller 211 is disposed in an opening that penetrates the upright column 21 in the X-axis direction. In the upright column 21, the guide rails 121 and 122 are gripped by the two gripping portions 21a made of three rollers.

  As shown in FIG. 3, the lower end portion of the upright column 21 is fixed to the side surface on the + X side and the side surface on the −Y side of the base 20 by, for example, bolts. Thereby, a pair of standing pillar 21 is attached to the base 20 in the state which mutually opposed. Moreover, the opening provided in the upright column 21 is closed by the closing member 21b from the base 20 side. The roller 211 is attached to the surface on the −X side of the closing member 21b.

  The beam member 23 is a rectangular plate member whose longitudinal direction is the X-axis direction. The beam member 23 is supported by the upright column 21 via the support member 22 at a position spaced apart from the upper surface of the base 20 by a predetermined distance.

  The support member 22 is a member whose longitudinal direction is the Y-axis direction. FIG. 4 is an enlarged view of the support member 22. As shown in FIG. 4, the support member 22 is made of a metal such as iron, and the XZ section is an L-shaped member. The support member 22 is a member composed of two parts, a first part 22a parallel to the YZ plane and a second part 22b parallel to the XY plane.

  The support member 22 is fixed to the upright column 21 by, for example, four bolts 221 at the −Y side end of the first portion 22a. Then, the + Y side end of the second portion 22 b is fixed to the end portion of the beam member 23 by, for example, two bolts 221. As shown in FIG. 3, both ends of the beam member 23 are supported by the pair of support members 22.

  Support pillars 24 are fixed to both ends of the beam member 23 in the X-axis direction. The support column 24 is a hollow member made of a metal such as iron and having the longitudinal direction as the Z-axis direction. A hoisting machine 25 is fixed to the central portion of the support column 24. A guide 26 having a hollow inside is fixed to the upper end of the support column 24.

  The winder 25 is a device that can wind or unwind the wire 25a. The wire 25 a pulled out from the hoisting machine 25 is laid to the upper part of the hoistway 200 of the elevator apparatus 100 via the inside of the guide 26, and one end is fixed to the ceiling of the hoistway 200.

  As shown in FIG. 2, the roofs 27 and 28 are supported by two guides 26. The roof 27 is composed of two plate members 27a and 27b. The plate member 27a is horizontally supported by the guide 26, and the plate member 27b is connected to the plate member 27a so as to be able to swing up and down around an axis parallel to the X axis. For this reason, the worker can unfold and fold the roof 27 by rotating the plate member 27b up and down with respect to the plate member 27a according to the work contents.

  Similarly, the roof 28 includes two plate members 28a and 28b. The plate member 28a is horizontally supported by the guide 26, and the plate member 28b is connected to the plate member 28a so as to be able to swing up and down around an axis parallel to the X axis. For this reason, the operator can unfold and fold the roof 28 by rotating the plate member 28b up and down with respect to the plate member 28a according to the work content.

  FIG. 5 is a perspective view of the work floor 50. The work floor 50 is a rectangular member including an iron grating that supports an operator, a frame that supports the grating, and the like. A fence 51 is provided on the upper surface of the work floor 50. The fence 51 includes four columns 51a provided at the four corners of the work floor 50, a lattice member 51b stretched over the columns 51a so as to be parallel to the Y axis, and a column 51a that is parallel to the XZ plane and centered on the columns 51a. The frame 51c is configured to be rotatable. The pair of frames 51c adjacent to each other functions as a gate for entering the work floor and leaving the work floor.

  As shown in FIG. 2, the work floor 50 is placed on the upper surface of the base 20. The position of the work floor 50 with respect to the base 20 in the Y-axis direction is adjusted according to the size and size of the elevator apparatus 100 to be installed and the positions of the guide rails 121 and 122.

  FIG. 6 is a side view showing the positional relationship between the base 20 and the work floor 50. As shown in FIG. 6, when the work floor 50 is placed on the base 20, the beam member 23 is supported above the work floor 50 and in a state parallel to the work floor 50.

  FIG. 7 is a plan view showing the positional relationship between the base 20 and the work floor 50. The center of gravity CG indicates the center of gravity of the base 20 when the work floor 50 is placed. As shown in FIG. 7, when the work floor 50 is placed with a slight offset to the + Y side with respect to the base 20, the center of gravity CG is the center of gravity of the base 20 before the work floor 50 is placed. It is in a state of being positioned slightly on the + Y side. The beam member 23 is supported on the center of gravity CG by the upright column 21 via the support member 22. The length of the support member 22 in the Y-axis direction is determined according to the distance in the Y-axis direction between the upright column 21 and the center of gravity CG.

  In the gondola 10 configured as described above, for example, the gondola 10 is raised by winding the wire 25a by the hoist 25 shown in FIG. 2, and the gondola 10 is lowered by lowering the wire 25a.

  As shown in FIG. 7, the wire 25 a that suspends the gondola 10 is positioned above the beam member 23 that is stretched so as to overlap the center of gravity CG of the base 20. For this reason, the gondola 10 can be moved up and down while the work floor 50 is kept horizontal. Therefore, the grip portion 21a of the upright column 21 slides with respect to the guide rails 121 and 122 without applying stress to the guide rails 121 and 122 to be gripped. Therefore, the guide rails 121 and 122 can be accurately centered.

  As described above, the gondola 10 according to the present embodiment is constructed so that the beam member 23 overlaps the center of gravity CG of the base 20 by the support member 22 extending from the upright column 21. For this reason, by providing the hoisting machine 25 at both ends of the beam member 23, the lifting center by the wire 25a can be made coincident with the center of gravity CG. Therefore, the gondola 10 can be moved up and down while the work floor 50 is kept horizontal. As a result, the installation work of the elevator apparatus can be made more efficient.

  In the present embodiment, the lifting center can be made to coincide with the center of gravity CG without using a counterweight or the like. For this reason, it is not necessary to increase the size of the hoisting machine or to equip the work floor with a function for adjusting the center of gravity. Therefore, the installation work of the elevator apparatus can be made more efficient without increasing the cost of the apparatus.

  As mentioned above, although embodiment of this invention was described, this invention is not limited by the said embodiment. For example, in the above embodiment, as illustrated in FIG. 7, the length of the support member 22 is determined according to the distance in the Y-axis direction between the upright column 21 and the center of gravity CG. Not limited to this, as shown in FIG. 8, for example, the first portion 22 a of the support member 22 is provided with a plurality of openings 22 c at a predetermined pitch in the Y-axis direction, and the openings 22 c into which the bolts 221 are inserted are selectively selected. By changing, the support member 22 may be movable with respect to the upright column 21 step by step. Thereby, the distance of the vertical axis 21 and the beam member 23 in the Y-axis direction can be easily adjusted. Therefore, even when the position of the center of gravity CG moves due to a change in the positional relationship between the base 20 and the work floor 50, the beam member 23 can be installed above the center of gravity CG without replacing the support member 22.

  Similarly, a plurality of openings 22c into which the bolts 221 are inserted may be provided in the second portion 22b of the support member 22 at a predetermined pitch. In this case as well, the distance in the Y-axis direction between the upright column 21 and the beam member 23 can be easily adjusted. Therefore, even when the position of the center of gravity CG moves due to a change in the positional relationship between the base 20 and the work floor 50, the beam member 23 can be installed above the center of gravity CG without replacing the support member 22.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 Gondola 20 Base 21 Standing pillar 21a Grasping part 21b Closing member 22 Support member 22a 1st part 22b 2nd part 22c Opening 23 Beam member 24 Support pillar 25 Winding machine 25a Wire 26 Guide 27, 28 Roof 27a, 27b, 28a, 28b Plate Member 50 Work floor 51 Fence 51a Pillar 51b Lattice member 51c Frame 100 Elevator device 121-124 Guide rail 132 Counterweight 140 Lifting motor 142 Pulley 160 Wire 170 Control panel 171 Cable 200 Hoistway 211, 212 Roller 221 Bolt 121-124 Guide rail CG center of gravity

Claims (4)

A working gondola used for installation of an elevator device,
A base disposed between a pair of guide rails for guiding a car of the elevator device;
A work floor supported by the base;
A pair of uprights fixed to the base at positions corresponding to the pair of guide rails and moving along the guide rails;
A beam constructed above the center of gravity of the base that supports the work floor;
From each of the pair of vertical pillars, a pair of support members that extend in a direction perpendicular to the vertical direction and support both ends of the beam;
A hoisting machine provided on the beam and wound with a wire for suspending the base;
Working gondola with.   The work gondola according to claim 1, wherein the support member supports the beam so as to be movable in a horizontal direction.   The work gondola according to claim 1, wherein the support member is movable in a horizontal direction with respect to the upright column.   The work gondola according to any one of claims 1 to 3, wherein the base supports the work floor so as to be movable in a horizontal direction.

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