JP6402042B2 - How to install platform lifting equipment - Google Patents

Description

  The present invention relates to a method for installing platform lifting equipment.

Conventionally, when a renovation work is performed in a space under a platform, an opening for an operator is sometimes provided and an elevator for a worker is temporarily installed.
It is called a “safety box” that is installed on the platform so as to cover the elevator door so that passers-by will not fall from the elevator door and it is necessary to prevent accidental entry by anyone other than construction personnel. There are known structures (for example, see Non-Patent Document 1).

Japan Steels International Co., Ltd. website, [Search on January 9, 2015], Internet <URL: http://www.japansteels.co.jp/seihinitiran/kou/PDF/sl-box.pdf>

  However, the safety box described in Non-Patent Document 1 is effectively used when performing 24-hour work. For example, when only night work is performed during the work period, it is installed on the platform even during the day. The safety box that has been used may become an obstacle that obstructs the flow of passengers and passers-by.

  An object of the present invention is to provide a method for installing a platform lifting / lowering facility that can easily install a platform lifting / lowering facility that can be deformed into a flat shape on the platform.

In order to achieve the above object, the present invention is a method for installing a platform lifting equipment,
A step of forming a through hole so as to expose a part of a pair of support members arranged at a desired interval among the existing support members supporting the floor plate of the platform;
A lid that is pivotally supported by a frame inscribed in the through hole is attached to the through hole so that the frame is placed on the pair of support members in a state where the opening of the frame is closed. Process,
Rotating the lid to open the opening of the frame;
Attaching a fence to the upper surface of the frame so as to surround the opening of the frame;
It was made to have.

If it is the installation method of the platform raising / lowering equipment of such a structure, a through-hole will be formed in a floor board so that a part of a pair of supporting member may be exposed among the existing supporting members which are supporting the floor board of a platform, After attaching the integrated frame to the through holes so as to rest on the pair of support members, the lid is rotated to open the opening of the frame, and the fence is placed on the upper surface of the frame so as to surround the opening. By installing the body, it is possible to easily install the platform lifting equipment.
In the platform lifting equipment installed in this way, the opening of the frame body is surrounded by the lid body erected from the frame body and the fence body attached to the upper surface of the frame body. It is possible to prevent anyone other than construction personnel from entering the work space.
In particular, if the lid that is pivotally supported by the frame body is attached to the through hole in the floor plate with the opening of the frame closed, the work space under the platform should be a non-construction person Of course, the lid cannot prevent the flow of passers-by on the platform.
In other words, in the case of the platform lifting / lowering equipment installed in this way, if the fence body is removed from the platform lifting / lowering equipment and the lid is rotated so as to close the opening of the frame, the flat shape on the platform. Can be made, and can be constructed so as not to obstruct the flow of passersby on the platform.

Also, preferably
The lid body in an open state of the frame body is erected to function as a part of the fence body.
By doing this, it is possible to enclose a part of the periphery of the opening of the frame body with a lid functioning as a fence body, and it is not necessary to enclose the entire circumference of the opening with a fence body. Can be reduced.

Also, preferably
A stopper that prevents the lid body in the state in which the opening of the frame body is opened from falling in the direction of closing the opening is mounted across the opposing fence body.
By doing so, even if a strong wind or the like that tilts the lid in the closing direction acts, the lid is restricted from rotating by the stopper, so the lid does not suddenly close. .
In addition, the fact that the stopper is fixed to the fence body can be easily confirmed by visual observation, so construction personnel can enter and exit the work space under the platform with a sense of security that the lid body will not fall suddenly. .

Also, preferably
A gripping part that is gripped when the lid is rotated is detachably attached to the upper surface of the lid, and the gripping part is removed when the opening of the frame is closed by the lid. .
By doing this, it is possible to easily rotate the lid by grasping the grip attached to the upper surface of the lid, and after holding the lid so as to close the opening of the frame, the grip If it is removed, the gripping portion can be transformed into a flatter shape without leaving it as a projection on the platform.

Also, preferably
The lid body in a state where the opening of the frame body is closed is made to function as a part of the floor board of the platform.
By doing so, it is possible to pass over the lid body with the opening of the frame body closed.

  According to the present invention, it is possible to easily install platform lifting equipment that can be transformed into a flat shape on the platform.

It is the top view (a) which shows the platform raising / lowering equipment of this embodiment, its side view (b), and its front view (c). It is the top view (a) which shows the platform raising / lowering equipment deform | transformed into the flat shape on the platform, and its side view (b). It is explanatory drawing (side view) regarding the platform which installs the platform raising / lowering equipment. They are the top view (a) which shows the through-hole formed in the floor board of a platform, and its side view (b). They are the top view (a) which shows the state which attached the frame body integrated with the cover body to the through-hole, and made the cover body stand up from the frame body, and the side view (b). It is a side view which shows the modification of the equipment for platform raising / lowering.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a method for installing a platform lifting / lowering facility according to the present invention will be described in detail with reference to the drawings. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.
In the present embodiment, a description will be given of a platform lifting equipment that can be easily installed on a platform and can be transformed into a flat shape on the platform.

FIG. 1A is a top view showing the platform lifting equipment 100, FIG. 1B is a side view thereof, and FIG. 1C is a front view thereof.
As shown in FIG. 1, the platform lifting / lowering equipment 100 of the present embodiment is pivotally supported by a frame body 10 fitted in a through hole H formed in a floor plate P of the platform and the frame body 10 so as to be rotatable. The lid body 20 is erected vertically from the frame body 10, and the fence bodies 30 and 31 are attached to the upper surface of the frame body 10 so as to surround the opening 10 a of the frame body 10. ing. Moreover, although not shown in figure, the stairway for going down to the working space under a platform through the opening 10a of the frame 10, and going up to a platform from a working space is installed.

The through-hole H of the floor board P is formed according to the position of the home cross beam which is the existing support member which is supporting the floor board P of a platform. In the vicinity where the platform lifting / lowering equipment 100 is installed, there are three large and small H-beams (50, 51, 52). A through hole H is formed between the small cross beam 51 near the large cross beam 50 and the large cross beam 52 on the right side.
The platform lifting / lowering equipment 100 is provided at a position corresponding to between the cross beam 51 and the cross beam 52, and the frame 10 is supported by the cross beam 51 and the cross beam 52.

The frame 10 is a frame-like member formed by welding, for example, four H-sections in a substantially rectangular shape, and is fitted so as to be inscribed in a through hole H formed in the floor plate P of the platform. And a cross girder 52.
The frame 10 is fixed to a horizontal beam 51 and a horizontal beam 52. For example, the frame 10 may be fixed to the cross beams 51 and 52 by welding, or may be fixed with bolts and nuts.

The lid 20 is a hatched (raised lid-like) member reinforced by welding a steel material or a steel rod to a steel plate, for example, and is rotatably provided at a location along the cross beam 51 in the frame 10. Yes.
The lid 20 is in a range from a position perpendicular to the frame 10 to open the opening 10 a of the frame 10 to a position parallel to the frame 10 and closing the opening 10 a of the frame 10. Can be rotated.
The lid body 20 in the state where the opening 10a of the frame body 10 is opened functions as a part of the fence body, and prevents entry from the left side in the drawings of FIGS. 1 (a) and 1 (b). It is a fence.
Further, with the lid 20 closing the opening 10a of the frame 10, the upper surface of the lid 20 is substantially flush with the platform floor plate P (see FIG. 2B).

  In addition, a grip portion 20b that is gripped when the lid 20 is rotated is detachably attached to the upper surface of the lid 20. In this embodiment, an eyebolt is used as the grip portion 20b, and can be attached by screwing into a bolt hole 20a formed on the upper surface of the lid body 20.

The lid 20 and the frame 10 are connected via a gas damper 21.
A pair of left and right gas dampers 21 are provided on the long side of the lid 20. One end of the gas damper 21 is fixed to the lower surface of the lid body 20, and the other end of the gas damper 21 is fixed to the protruding end portion 11 formed by welding a short H-shaped steel to the lower surface side of the frame body 10. .
The gas damper 21 adjusts the rotational speed of the lid 20 so that the lid 20 does not pivot vigorously. Further, the gas damper 21 has a function of supporting the lid 20 so as to maintain the posture of the lid 20 erected vertically from the frame body 10.

The fence bodies 30 and 31 are fence-like members made of, for example, stainless steel or aluminum, and are protective fences that prevent anyone other than construction personnel from accidentally entering the work space under the platform through the opening 10a of the frame body 10.
A fence body 30 is fixed to the upper surface of one long side of the frame body 10 with bolts and nuts, and a fence body 31 is fixed to the upper surface of the other long side of the frame body 10 with bolts and nuts.
Moreover, the fence body 30 has a door 32 attached via a hinge.
When the door 32 is perpendicular to the fence body 30 and closed so as to close the gap between the fence body 30 and the fence body 31, the entry prevention from the right side is prevented in FIGS. 1 (a) and 1 (b). It has a function as a fence body which aims at.
Moreover, by rotating and opening the door 32, it becomes possible to pass between the fence body 30 and the fence body 31, and a construction-related person may enter the work space under the platform through the opening 10a of the frame body 10. It becomes possible.
It is preferable to provide an engagement mechanism that engages the free end portion of the door 32 and the end portion of the fence body 31 so that the door 32 does not open carelessly. Furthermore, it is preferable that a lock function is provided to the engagement mechanism so that only a person involved in the construction can release the lock.

Further, the lid body 20 in a state where the opening 10a is opened perpendicularly with respect to the frame body 10 is hung on the fence body 30 and the fence body 31 opposed to each other by a stopper 33 that prevents the lid body 20 from falling in a direction to close the opening 10a. Passed and installed.
The stopper 33 is a rod-shaped member made of stainless steel or aluminum, and both ends thereof are fixed at predetermined positions of the fence body 30 and the fence body 31 by toggle pins.
If this stopper 33 is fixed to the fence body 30 and the fence body 31, even if a strong wind or the like that tilts the lid 20 in the vertical direction in the closing direction acts, the lid 20 will stop. Therefore, the rotation is restricted, and the lid 20 is not suddenly closed.
In addition, since it can be easily confirmed visually that the stopper 33 is fixed to the fence bodies 30 and 31, the person concerned in the construction can enter the work space under the platform with a sense of security that the lid body 20 will not fall suddenly. You can go in and out.
In addition, the lid body 20 can also be installed upright in a state where the lid body 20 is leaned against the stopper 33 that is mounted over the fence bodies 30 and 31.

In such a platform lifting / lowering equipment 100, the lid 20, the fence bodies 30, 31 and the door 32 that are erected surround the four sides of the opening 10 a of the frame body 10, so that the work space under the platform is It is possible to prevent accidental entry by anyone other than construction personnel.
Further, by opening the pivotable door 32, it becomes possible to pass between the fence body 30 and the fence body 31, so that a construction worker enters the work space under the platform through the opening 10a of the frame body 10. It becomes possible.

By the way, although the work under the platform has not been completed, for example, when a holiday is set for a long period of time, the platform lifting / lowering equipment 100 remains on the platform with the platform lifting / lowering equipment 100 installed. It becomes an obstacle that obstructs the flow of people and passers-by.
Similarly, for example, when the work is performed under the platform during the day from about 10:00 to about 16:00 and the work is not performed outside the time, the platform lifting / lowering equipment 100 is placed on the platform outside the predetermined work time. If installed, the platform lifting / lowering equipment 100 becomes an obstacle that obstructs the flow of passengers and passers-by.
In such a case, the platform lifting / lowering equipment 100 can be modified to be temporarily removed.

When the platform lifting / lowering equipment 100 shown in FIG. 1 is temporarily removed so as to be removed, for example, the stopper 33 is first removed from the fence bodies 30 and 31.
Further, the fence body 30 (door 32) and the fence body 31 fixed with bolts and nuts are removed from the frame body 10.
Next, the lid 20 standing vertically is turned and tilted toward the frame 10, and the opening 10 a of the frame 10 is closed with the lid 20.
After the opening 10a of the frame 10 is closed, the grip 20b is removed from the lid 20, and a flat cap 20c is attached to the bolt hole 20a.
As shown in FIGS. 2A and 2B, when the lid 20 is closed and the gripping portion 20b is removed, the upper surface of the lid 20 is substantially flush with the floor plate P of the platform. The lid 20 in a state in which the opening 10a is closed functions as a part of the floor board P of the platform.

In this way, the rails 30 and 31 of the platform lifting / lowering equipment 100 are removed, the lid 20 is rotated to close the opening 10a of the frame 10, and the grip 20b is removed from the lid 20 so that the platform The platform lifting / lowering equipment 100 can be easily transformed into a flat shape.
By doing so, it is possible to prevent anyone other than construction personnel from accidentally entering the work space under the platform, and it will not hinder the flow of passers-by on the platform.

Then, when there is a closed period or when a predetermined work time is reached, the platform 20 can be erected in the vertical direction again, and if the fence bodies 30, 31 and the stopper 33 are attached, the platform can be raised and lowered quickly. The equipment 100 can be assembled.
In particular, since the flat cap 20c is attached to the bolt hole 20a to prevent dust and the like from accumulating in the bolt hole 20a, the grip portion 20b is immediately inserted into the bolt hole 20a after the flat cap 20c is removed. Since the platform lifting equipment 100 can be reassembled smoothly.

  Next, the installation method of the platform raising / lowering equipment 100 of this embodiment is demonstrated.

First, in a range corresponding to the work space under the platform, a place where an opening (10a) through which a worker entering / exiting the work space or equipment used in the work space can pass can be formed in the floor board P of the platform is examined. .
Specifically, when there is a work space under the platform shown in FIG. 3, the position of the existing cross beam (50, 51, 52) supporting the platform floor plate P is confirmed, and the existing cross beam (50 , 51, 52), and a place where an opening (10a) of a desired size can be formed on the floor board P is examined.

  For example, when it can be determined that the space between the cross beam 51 and the cross beam 52 is a desired preferable interval and that the opening (10a) having a sufficiently wide width can be obtained if it is between the cross beam 51 and the cross beam 52. 4 (a) and 4 (b), a through hole H is formed in the platform floor plate P so as to expose a part of the cross beam 51 and the cross beam 52.

Next, a frame 10 having a size and shape corresponding to the through hole H provided in the floor plate P and a lid 20 having a size and shape capable of closing the opening 10a of the frame 10 are formed. 20 is attached to the frame 10 so as to be pivotable. In addition, the projecting end portion 11 is disposed on the lower surface side of the frame body 10, and the gas damper 21 that connects the projecting end portion 11 and the lower surface of the lid body 20 is also attached.
Then, the frame body 10 integrated with the lid body 20 in a state where the lid body 20 pivotally supported by the frame body 10 inscribed in the through hole H of the floor plate P closes the opening 10a of the frame body 10. Is attached to the through hole H, and the frame 10 is mounted on the cross beam 51 and the cross beam 52 and fixed (see FIGS. 2A and 2B).

  Next, as shown in FIGS. 5 (a) and 5 (b), a gripping portion 20b is attached to the bolt hole 20a of the lid body 20, and the gripping portion 20b is gripped and rotated to cause the lid body 20 to be in a vertical posture. Stand up and open the opening 10a of the frame 10.

Next, the fence body 30 (door 32) and the fence body 31 are attached to the upper surface of the frame body 10 so as to surround the opening 10a of the frame body 10.
Furthermore, the stopper 33 is bridged over the fence body 30 and the fence body 31 and attached to a predetermined position.
Further, a stair (not shown) for ascending and descending to the work space under the platform is attached to the cross beam 52.
Thus, the platform raising / lowering equipment 100 is installed on the platform, and the construction is finished (see FIGS. 1A, 1B, and 1C).

As mentioned above, according to the installation method of the platform raising / lowering equipment of this embodiment, the platform raising / lowering equipment 100 can be easily installed on a platform.
In particular, if the lid 10 closes the opening 10a of the frame 10 by temporarily removing the fences 30 and 31 of the platform lifting / lowering facility 100, the platform lifting / lowering facility 100 on the platform can be easily used. It can be transformed into a flat shape.

Thus, in the case of the platform lifting / lowering equipment 100 installed on the platform by the platform lifting / lowering equipment installation method of the present embodiment, the frame body is formed by the standing lid body 20, the fence bodies 30, 31 and the door 32. Since it surrounds the four sides of the 10 openings 10a, it is possible to prevent anyone other than construction personnel from accidentally entering the work space under the platform.
Further, if the opening 10a of the frame body 10 is closed with the lid 20 and the platform lifting / lowering equipment 100 on the platform is transformed into a flat shape, it is possible to prevent anyone other than construction personnel from accidentally entering the work space under the platform. Of course, it does not interfere with the flow of passers-by on the platform.

The present invention is not limited to the above embodiment.
For example, as shown in FIG. 6, two stoppers 33 are installed to be mounted over the fence bodies 30 and 31, the standing lid body 20 is leaned against one stopper 33, and the other stopper 33 is placed on the lid body 20. The lid 20 may be sandwiched between the two stoppers 33 so as to be in contact with each other.
As described above, when the two stoppers 33 are used, the lid 20 can be fixed to the fence bodies 30 and 31 by the stopper 33 so that the lid 20 does not move even if a strong wind or the like acts on it. it can.

  In addition, when the lid body 20 is rotated and the opening 10a of the frame body 10 is closed and the fence bodies 30 and 31 are installed without being removed, a stopper 33 is bridged over the fence bodies 30 and 31. If so, the stopper 33 can also function as a fence.

In the above-described embodiment, when the platform lifting / lowering equipment 100 is installed on the platform during a predetermined work time from about 10:00 to 16:00, and the platform lifting / lowering equipment 100 is transformed into a flat shape outside the predetermined work time. However, the present invention is not limited to this.
For example, the platform lifting / lowering equipment 100 is transformed into a flat shape in the time zone from the first train to morning at 10:00 in the morning rush hour and from 16:00 to the last train in the evening rush hour, and in other time zones You may make it install the platform raising / lowering equipment 100 on a platform.
In this way, the platform lifting equipment 100 can be transformed into a flat shape according to the flow situation of passengers, or the platform lifting equipment 100 can be installed on the platform.

  Moreover, in the said embodiment, although the holding part 20b was attached to the upper surface of the cover body 20 so that attachment or detachment was possible, this invention is not limited to this, For example, it can appear at the upper surface of the cover body 20 The grip part 20b attached to may be sufficient. Specifically, the grip 20b is accommodated in an accommodation groove provided in the lid 20 so that the upper surface of the lid 20 is flat, and the lid 20 is rotated when the lid 20 is rotated. You may make it use it, pulling out the holding part 20b from 20 accommodation grooves.

  In addition, it is needless to say that other specific detailed structures can be appropriately changed.

DESCRIPTION OF SYMBOLS 10 Frame body 10a Opening 11 Protruding end part 20 Lid body 20a Bolt hole 20b Grasping part 20c Flat cap 21 Gas damper 30 Fence body 31 Fence body 32 Door 33 Stopper 51 Cross girder (existing support member)
52 Cross beam (existing support member)
100 Platform lifting equipment P Floor board H Through hole

Claims (5)

A step of forming a through hole so as to expose a part of a pair of support members arranged at a desired interval among the existing support members supporting the floor plate of the platform;
A lid that is pivotally supported by a frame inscribed in the through hole is attached to the through hole so that the frame is placed on the pair of support members in a state where the opening of the frame is closed. Process,
Rotating the lid to open the opening of the frame;
Attaching a fence to the upper surface of the frame so as to surround the opening of the frame;
The installation method of the platform raising / lowering equipment characterized by having.   The platform lifting / lowering equipment installation method according to claim 1, wherein the lid is lifted up to function as a part of the fence body.   3. The stopper according to claim 1, wherein a stopper that prevents the lid body in a state in which the opening of the frame body is opened from falling in a direction to close the opening is installed across the opposing fence body. How to install platform lifting equipment.   A gripping part that is gripped when the lid is rotated is detachably attached to the upper surface of the lid, and the gripping part is removed when the lid is closed with the opening of the frame. The installation method of the equipment for raising / lowering a platform as described in any one of Claims 1-3.   The installation method of the platform lifting / lowering equipment according to any one of claims 1 to 4, wherein the lid body in a state in which the opening of the frame body is closed functions as a part of a floor plate of the platform. .

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