Operating platform device for elevator and its assembling method

Abstract

In the working platform device of an elevator, the main body of the working platform device is supported in the hoistway by an upper support member and a lower support member. The upper support member is above the landing entrance and is fixed to the hoistway wall by a plurality of upper anchor bolts. The lower support member is below the landing entrance and is fixed to the front wall surface, which is the wall surface of the hoistway intersecting with the landing floor, by a plurality of lower anchor bolts.

Description

Technical Field

[0001] The present invention relates to a work platform device for an elevator provided in a hoistway and an assembly method thereof. Background Art

[0002] As the structure of a conventional work platform device for an elevator, a structure in which part of the load is supported by a landing wall and a structure in which part of the load is supported by a landing floor are known (for example, refer to Patent Document 1). In addition, as the structure of other conventional work platform devices, there is also the following structure: a support column is fixed between the landing floor and the upper edge of the landing entrance, and part of the load is supported by the inner wall of the hoistway facing the landing entrance (for example, refer to Patent Document 2).

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2015-6944

[0006] Patent Document 2: Japanese Unexamined Patent Application Publication No. 8-301549 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] In the above-mentioned conventional work platform device, regarding the work platform device that supports part of the load by the landing wall, when the landing wall is made of a plate and when the surface of the landing wall is a design surface, it is possible to damage the landing wall, so it cannot be applied.

[0009] In addition, regarding the work platform device that supports part of the load by the landing floor, when the landing floor is made of ALC (autoclaved lightweight aerated concrete) and when the surface of the landing floor is a finished surface, it is possible to damage the landing floor, so it cannot be applied.

[0010] In addition, the same applies to the work platform device of Patent Document 2. Since a support column is fixed between the landing floor and the upper edge of the landing entrance, it cannot be applied to some landing wall and landing floor materials.

[0011] The present invention is made to solve the above-mentioned problems, and an object thereof is to obtain a work platform device for an elevator and an assembly method thereof that can suppress damage to the landing wall and the landing floor.

[0012] Means for Solving the Problems

[0013] The working platform device of the elevator of the present invention includes: an upper support member that is fixed to the hoistway wall above the landing entrance by a plurality of upper anchor bolts; a lower support member that is fixed to the front wall surface, which is the wall surface of the hoistway wall intersecting the landing floor, below the landing entrance by a plurality of lower anchor bolts; and a working platform device main body that is supported in the hoistway by the upper support member and the lower support member.

[0014] Advantages of the Invention

[0015] In the working platform device of the elevator of the present invention, since the upper support member and the lower support member are fixed to the hoistway wall, damage to the landing wall and the landing floor can be suppressed. Description of the Drawings

[0016] Figure 1 It is a side view showing the working platform device of the elevator according to Embodiment 1 of the present invention.

[0017] Figure 2 It shows Figure 1 a front view of the working platform device.

[0018] Figure 3 It shows Figure 1 a side view of the working platform device in a state during assembly.

[0019] Figure 4 It is a side view showing the working platform device of the elevator according to Embodiment 2 of the present invention.

[0020] Figure 5 It shows Figure 4 a front view of the working platform device. Detailed Embodiments

[0021] Hereinafter, with reference to the drawings, the embodiments for implementing the present invention will be described.

[0022] Embodiment 1.

[0023] Figure 1 It is a side view showing the working platform device of the elevator according to Embodiment 1 of the present invention. Figure 2 It shows Figure 1 a front view of the working platform device. In addition, Figure 1 It is Figure 2 a right view of. In addition, Figure 2 It is Figure 1 a view observed along arrow II of.

[0024] In the figure, the hoistway 1 is a space surrounded by the hoistway wall 2. Landing walls 3 are respectively provided between the multi-story landings and the hoistway 1. Landing entrances 4 are provided in the landing walls 3 of each landing. The landing entrances 4 connect the landings and the inside of the hoistway 1. In addition, inFigure 2 In this case, the landing wall 3 is omitted.

[0025] The hoistway wall 2 has an inner wall surface 2a, a front wall surface 2b, a right side wall surface 2c, and a left side wall surface 2d. The inner wall surface 2a is the wall surface facing the landing entrance 4. The front wall surface 2b is the wall surface facing the inner wall surface 2a and intersecting the landing floor 5.

[0026] The right side wall surface 2c is the wall surface on the right side when observing the hoistway 1 from the landing entrance 4. The left side wall surface 2d is the wall surface on the left side when observing the hoistway 1 from the landing entrance 4. The right side wall surface 2c and the left side wall surface 2d face each other.

[0027] The work platform device of Embodiment 1 is provided across the uppermost landing and inside the hoistway 1. In addition, the work platform device has an upper support member 11, a lower support member 12, and a work platform device main body 13.

[0028] The upper support member 11 is provided inside the hoistway 1 above the uppermost landing entrance 4. That is, the upper support member 11 is disposed at the top inside the hoistway 1. In addition, the upper support member 11 is a rod-shaped member parallel to the width direction of the landing entrance 4.

[0029] The first end in the length direction of the upper support member 11 is fixed to the right side wall surface 2c by a plurality of first upper anchoring bolts 14. The second end in the length direction of the upper support member 11 is fixed to the left side wall surface 2d by a plurality of second upper anchoring bolts 15.

[0030] The lower support member 12 is fixed to the front wall surface 2b below the uppermost landing entrance 4. In addition, the lower support member 12 is fixed to the front wall surface 2b by a plurality of lower anchoring bolts 16.

[0031] In addition, the lower support member 12 has: a flat plate-shaped vertical portion 12a, which is fixed to the front wall surface 2b; and a flat plate-shaped protruding portion 12b, which protrudes from the vertical portion at a right angle onto the landing floor 5. The vertical position of the protruding portion 12b relative to the vertical portion 12a is adjustable.

[0032] In Figure 1 this case, the corner between the landing floor 5 and the front wall surface 2b is chiseled when removing the existing sill groove (not shown). According to the depth of the chiseled portion 5a thus generated, the vertical position of the protruding portion 12b relative to the vertical portion 12a is adjusted.

[0033] The work platform device main body 13 is supported inside the hoistway 1 by the upper support member 11 and the lower support member 12. In addition, the work platform device main body 13 has a base portion 21, a column portion 22, a pedal portion 23, a ladder 24, a pair of stay members 25, a pair of pedal support members 26, and a handrail portion 27.

[0034] The base portion 21 is connected to the protruding portion 12b and placed on the landing floor 5.

[0035] The column portion 22 is connected between the base portion 21 and the upper support member 11. In addition, the column portion 22 includes a pair of lower columns 31, a pair of upper columns 32, and a pair of U-shaped connecting members 33.

[0036] The lower columns 31 are vertically erected on the base portion 21 at intervals in the width direction of the landing entrance 4. In addition, the lower end portions of the respective lower columns 31 are connected to the base portion 21.

[0037] The upper columns 32 are arranged at intervals in the width direction of the landing entrance 4. In addition, the upper end portions of the respective upper columns 32 are connected to the upper support member 11.

[0038] Each connecting member 33 is fixed to the lower end portion of the corresponding upper column 32 by welding or the like. Each connecting member 33 is connected to the upper end portion of the corresponding lower column 31 at two positions spaced apart from each other in the vertical direction. In addition, each connecting member 33 is arranged across the landing entrance 4. That is, each connecting member 33 is arranged across the landing and the hoistway 1.

[0039] The tread portion 23 is horizontally arranged in the hoistway 1 at a position above the landing floor 5. In addition, the tread portion 23 has a pair of horizontal beams 34, a tread 35, and a skirt 36.

[0040] The tread 35 is supported by a pair of horizontal beams 34. The skirt 36 surrounds the periphery of the tread 35 except for the entrance portion of the tread 35.

[0041] The ladder 24 is connected between a portion of the column portion 22 below the tread portion 23 and the pair of horizontal beams 34. In addition, the upper end portion of the ladder 24 is connected to the end portions of the pair of horizontal beams 34 on the landing entrance 4 side. An operator moves between the landing floor 5 and the tread 35 using the ladder 24.

[0042] A pair of stay members 25 are connected between a portion of the column portion 22 above the tread portion 23 and the pair of horizontal beams 34. In this example, the upper end portions of the respective stay members 25 are connected to the upper end portions of the corresponding lower columns 31. In addition, the lower end portions of the respective stay members 25 are connected to the end portions of the corresponding horizontal beams 34 on the landing entrance 4 side.

[0043] A pair of tread support members 26 are inclinedly arranged between a portion of the pair of horizontal beams 34 farther from the landing entrance 4 than the connecting portion connected to the ladder 24 and the column portion 22. In addition, the pair of tread support members 26 are connected to a portion of the column portion 22 below the tread portion 23.

[0044] Among the components constituting the main body 13 of the work platform device, a pair of lower struts 31, a pair of upper struts 32, a pair of connecting members 33, a pair of horizontal beams 34, a ladder 24, a pair of stay members 25, and a pair of pedal support members 26 function as strength members. Through a plurality of triangular structures formed by these strength members, the load acting on the pedal portion 23 is dispersedly supported by the upper support member 11 and the lower support member 12.

[0045] A pair of reinforcing members 28 are provided between the pair of pedal support members 26. The pair of reinforcing members 28 are arranged to cross each other.

[0046] The handrail portion 27 is fixed to the pedal portion 23. In addition, the handrail portion 27 surrounds the upper space of the pedal portion 23 in a full circle. However, a door that can be opened and closed is provided at the entrance / exit portion for entering and exiting the pedal portion 23.

[0047] In such a work platform device of an elevator, since the upper support member 11 and the lower support member 12 are fixed to the hoistway wall 2, damage to the landing wall 3 and the landing floor 5 can be suppressed.

[0048] In addition, since the upper support member 11 is fixed to the right side wall surface 2c and the left side wall surface 2d, the upper support member 11 can be stably fixed in the hoistway 1. In addition, compared with the case where the upper support member 11 is fixed to the inner wall surface 2a, it can be more easily applied to an elevator of a type in which a counterweight is arranged behind the lifting area of the car.

[0049] In addition, the vertical position of the protruding portion 12b relative to the vertical portion 12a can be adjusted, so it is possible to easily cope with the presence or absence of the chiseling portion 5a and the difference in the depth of the chiseling portion 5a on site.

[0050] In addition, since the ladder 24 and the stay member 25 are connected between the column portion 22 and the pedal portion 23, the load acting on the pedal portion 23 can be stably supported by the upper support member 11 and the lower support member 12.

[0051] In addition, a pedal support member 26 is connected between the pedal portion 23 and the column portion 22, so the load acting on the pedal portion 23 can be supported more stably.

[0052] Next, Figure 3 is a side view showing the state during the assembly of the work platform device of Figure 1 . For example, in the case of performing renovation work on an elevator, the operator rides above the existing car 6. Then, at least a part of the fixing of the upper support member 11 and the lower support member 12 to the hoistway wall 2 and the assembly of the main body 13 of the work platform device are carried out from above the car 6.

[0053] When fixing the upper support member 11 to the hoistway wall 2, the first upper anchor bolt 14 is driven into the right side wall surface 2c, and the second upper anchor bolt 15 is driven into the left side wall surface 2d. In addition, when fixing the lower support member 12 to the hoistway wall 2, the lower anchor bolt 16 is driven into the front wall surface 2b.

[0054] In the assembly operation of the work platform device main body 13, the components that support and connect the work platform device main body 13 are carried out by the workers above the car 6.

[0055] Although not shown in the figure, an existing traction machine for lifting the car 6 is provided at a position in the hoistway 1 that does not conflict with the car 6. By driving this traction machine, the car 6 can be lifted and lowered, and operations can be carried out at different up-and-down positions in the hoistway 1. Figure 3

[0056] It is efficient for the assembly operation of the work platform device main body 13 to be carried out by the workers at the uppermost landing and the workers above the car 6.

[0057] After the assembly of the work platform device is completed, the existing elevator equipment is removed and the newly installed elevator equipment is installed using the work platform device. Examples of the existing elevator equipment to be removed include the car 6, the counterweight, the traction machine, the ropes, etc.

[0058] The work platform device is removed at the end of the construction. The removal operation of the work platform device can also be carried out by the workers boarding above the newly installed car.

[0059] According to such an assembly method of the work platform device, the setting operation of the work platform device can be carried out more efficiently.

[0060] Embodiment 2.

[0061] Next, Figure 4 FIG. is a side view of the work platform device of the elevator according to Embodiment 2 of the present invention. Figure 5 FIG. is a front view of the work platform device shown in Figure 4 . In addition, Figure 4 FIG. is Figure 5 a right view of Figure 5 . In addition, Figure 4 FIG. is a view observed along the arrow V of

[0062] In Embodiment 2, the difference from Embodiment 1 lies in the position of the connection part between the pedal support member 26 and the column part 22. That is, the pedal support member 26 in Embodiment 2 is connected to a part above the pedal part 23 of the column part 22. In this example, the pedal support member 26 is connected to the upper support column 32. Other structures and assembly methods are the same as those in Embodiment 1.

[0063] ​According to such a work platform device, the same effects as those in Embodiment 1 can also be obtained.

[0064] In addition, in Embodiments 1 and 2, the upper support member 11 is fixed to the right side wall surface 2c and the left side wall surface 2d, but the upper support member 11 may also be fixed to other wall surfaces of the hoistway wall 2.

[0065] Furthermore, the specific structure of the work platform device main body 13 is not limited to Embodiments 1 and 2.

[0066] In addition, the work platform device of the present invention may also be provided other than the topmost floor.

[0067] In addition, the work platform device of the present invention may also be used for purposes other than renovation construction.

[0068] Reference Numeral Explanation

[0069] 1: Hoistway; 2: Hoistway wall; 2b: Front wall surface; 2c: Right side wall surface; 2d: Left side wall surface; 4: Landing entrance; 5: Landing floor; 6: Car; 11: Upper support member; 12: Lower support member; 12a: Vertical portion; 12b: Protruding portion; 13: Work platform device main body; 14: First upper anchor bolt; 15: Second upper anchor bolt; 16: Lower anchor bolt; 21: Base portion; 22: Column portion; 23: Pedal portion; 24: Ladder; 25: Stay member; 26: Pedal support member.

Claims

1. An operating platform device for an elevator, which is applied to an elevator of a type having a counterweight configured behind the lifting area of the car. The operating platform device of the elevator includes: An upper support member, which is above the landing entrance and is fixed to the hoistway wall by a plurality of upper anchor bolts; A lower support member, which is below the landing entrance and is fixed to the front wall surface, which is the wall surface of the hoistway wall intersecting the landing floor, by a plurality of lower anchor bolts; and An operating platform device main body, which is supported in the hoistway by the upper support member and the lower support member. When observing the hoistway from the landing entrance, the upper support member is fixed to the right wall surface, which is the right wall surface of the hoistway wall, and the left wall surface, which is the left wall surface of the hoistway wall. The operating platform device main body has: A base portion, which is connected to the lower support member and is placed on the landing floor; A column portion, which is connected between the base portion and the upper support member.

2. The operating platform device for an elevator according to claim 1, wherein: The lower support member has: a vertical portion, which is fixed to the front wall surface; And a protruding portion, which protrudes from the vertical portion onto the landing floor. The vertical position of the protruding portion relative to the vertical portion is adjustable.

3. The operating platform device for an elevator according to claim 1 or 2, wherein: The operating platform device main body further has: A pedal portion, which is horizontally arranged in the hoistway; A ladder, which is connected between a portion of the column portion below the pedal portion and the pedal portion; And A stay member, which is connected between a portion of the column portion above the pedal portion and the pedal portion.

4. The operating platform device for an elevator according to claim 3, wherein: The operating platform device main body further has a pedal support member, which is obliquely arranged between a portion of the pedal portion farther from the landing entrance than the connecting portion connected to the ladder and the column portion. The pedal support member is connected to a portion of the column portion below the pedal portion.

5. The operating platform device for an elevator according to claim 3, wherein: The operating platform device main body further has a pedal support member, which is obliquely arranged between a portion of the pedal portion farther from the landing entrance than the connecting portion connected to the ladder and the column portion. The pedal support member is connected to a portion of the column portion above the pedal portion.

6. An assembling method for an operating platform device of an elevator, where the operating platform device of the elevator is the operating platform device of the elevator according to any one of claims 1 to 5. At least a part of the fixing of the upper support member and the lower support member to the hoistway wall and the assembling of the operating platform device main body are carried out above the car.

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