JP2015101440A - Stair lifting device and stair lifting method of heavy load - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stair lifting device and a stair lifting method of a heavy load in which the heavy load can be carried via a narrow stair with a loop back.SOLUTION: A stair lifting device 1 according to the present invention is configured to lift and carry a heavy load 10 over a stair 100. The stair lifting device includes two portal type structures, a rail 5 provided by connecting top parts of two portal type structures, a trolley 7 provided to the rail 5, and a portal type auxiliary fixture 50 provided in a trolley 7 and having a chain block 8 for lifting a heavy load 10. Also, the present embodiment includes base parts 11a, 11b mounted with the heavy load 10, rollers 12a-12d provided in the base parts 11a, 11b, and legs 13a, 13b attached to the base part 11b. The heavy load 10 is lifted by the portal type auxiliary fixture 50 and moved horizontally, and is held on the stair 100 by the rollers 12a-12d and the legs 13a, 13b except when moved.

Description

  The present invention relates to a stair lifting device and a stair lifting method for lifting a heavy object such as an elevator hoist through a stair.

  Conventionally, when lifting a hoisting machine for a new elevator construction, for example, it was possible to lift the hoisting machine via the elevator hoistway, but for example, only the hoisting machine and the control panel were installed. In the renewal work of the elevator to be carried out by exchanging, it was difficult to lift the hoisting machine as in the new elevator work.

  In such elevator renewal work, for example, it is necessary to lift the hoisting machine and the control panel to the floor where the elevator machine room installed on the roof of the building is installed via the stairs of the building. was there. Patent Document 1 discloses a technique for lifting a heavy object such as an escalator via a staircase. The prior art disclosed in this Patent Document 1 is provided with a lifting device on a floor that is distant from the upper and lower floors where the line of sight is visible, and lifts heavy objects such as escalators by the lifting device.

Japanese Patent No. 4058098

  However, in the lifting of heavy objects in the renewal work of an elevator, the construction environment described in Patent Document 1 is not always limited. For example, it may be necessary to lift a heavy object to a floor where an elevator machine room is provided via a narrow and folded stairs like a landing. The prior art has not been able to cope with such a construction environment. Moreover, since the prior art disclosed in Patent Document 1 has a large configuration and is complicated, there is a concern that the number of construction steps and the construction cost are increased.

  The present invention has been made from the above-described situation in the prior art, and an object of the present invention is to provide a heavy-weight stair lifting device and a stair lifting capable of transporting a heavy material via a narrow and folded stair. It is to provide a method.

  In order to achieve the above object, a stair lifting apparatus for heavy objects according to the present invention is a stair lifting apparatus for heavy objects that lifts and conveys heavy objects on a staircase, and includes two portal structures, A gate-type hire comprising a rail provided by joining the tops of two gate-type structures, a trolley provided on the rail, and a lifting means provided on the trolley for lifting the heavy object. , A platform on which the heavy load is mounted, a roller provided at a lower portion of the platform, and a leg attached to the platform, the heavy load being lifted by the gate type worker in a horizontal direction The roller and the leg are held on the stairs except when moved.

  Further, the stair lifting method for a heavy object according to the present invention is the stair lifting method for a heavy object in which the heavy object is lifted and conveyed on the stair using the heavy object stair lifting device. A first step of installing the gate-type hire having the lifting means thereon; a second step of lifting the heavy object by the lifting means of the gate-type hire; and being lifted by the lifting means A third step of moving the heavy load in a horizontal state, a fourth step of holding the heavy load on the stairs via the rollers and the legs, and And a fifth step of relocation.

  The stair lifting device and the stair lifting method according to the present invention can transport a heavy object via a narrow and folded stair. Therefore, it can also be applied to renewal work for elevators that must lift heavy objects via narrow and folded stairs, which was difficult with the prior art, and the present invention is superior in general purpose compared to the prior art. Sex can be secured. In addition, the present invention can have a simpler configuration than that of the prior art, thereby reducing the number of construction steps and the construction cost as compared with the prior art.

It is a perspective view which shows one Embodiment of the stair lifting device of the heavy article which concerns on this invention. It is a side view which shows the state of the 1st step (before lifting of a heavy load) in one Embodiment of the stair lifting method of the heavy load which concerns on this invention. It is a side view which shows the state of the 2nd step (during the lifting of a heavy article) in the stair lifting method which concerns on this embodiment. It is a side view which shows the state of the 3rd step (during the movement of a heavy article) in the stairlifting method which concerns on this embodiment. It is a side view which shows the state of the 4th step (stair holding of a heavy article) in the stair lifting method which concerns on this embodiment. It is a side view which shows the state of the 5th step (gate type employment movement) in the stairlifting method which concerns on this embodiment.

  Embodiments of a stair lifting device and a stair lifting method according to the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, a stairlift device 1 according to an embodiment of the present invention includes two gate-type structures, rails 5 provided by connecting the tops of the two gate-type structures, A trolley 7 provided on the rail 5 and a gate-type hire 50 provided on the trolley 7 and having lifting means, for example, a chain block 8, for lifting a heavy object 10 are provided. Further, the stair lifting device 1 according to the present embodiment includes base parts 11a and 11b on which heavy objects 10 are mounted, rollers 12a, 12b, 12c and 12d provided below the base parts 11a and 11b, Leg 13a, 13b attached to the base part 11b is provided.

  Each of the above-described two gate-type structures of the gate-type hire 50 includes a pair of extendable struts arranged opposite to each other, that is, a pair of front columns 2a and 2b and a pair of rear columns 3a and 3b, A connecting column that connects the upper portions of a pair of corresponding columns, that is, a connecting column 4a that connects the upper portions of the pair of front columns 2a and 2b, and a connecting column 4b that connects the upper portions of the pair of rear columns 3a and 3b. ing. The rail 5 described above is provided so as to connect the connecting pillar 4a of one of the two gate-type structures to the connecting pillar 4b of the other gate-type structure.

  The front pillars 2a and 2b and the rear pillars 3a and 3b are configured by pipe supports and the like whose lengths are variable. The connecting pillars 4a and 4b are made of, for example, an H-shaped steel material. The connecting pillar 4a is fixed so as to be horizontal with bolts, for example, at the tops of the front pillars 2a, 2b. Similarly, the connecting column 4b is also fixed so as to be horizontal with bolts, for example, at the tops of the rear columns 3a and 3b.

  The rail 5 is made of, for example, an H-type steel material or an I-type steel material, and is fixed with bolts so as to be coupled at the midpoint between the connecting columns 4a and 4b. In addition, you may fix the rail 5 and the connection pillars 4a and 4b with a rail clip, a vise, etc. instead of a volt | bolt. In the present embodiment, the connecting pillars 4a and 4b and the rail 5 are arranged so as to be orthogonal to each other, for example.

  In addition, the present embodiment is provided with reinforcing members 6a, 6b, 6c, and 6d that reinforce the front columns 2a and 2b that form a pair of columns and the rear columns 3a and 3b that form another pair of columns, respectively. Yes. These reinforcing members 6a to 6d are reinforcing members that keep the front columns 2a and 2b and the rear columns 3a and 3b in a vertical state without spreading. The reinforcing member 6a connects the front column 2a and the front column 2b, the reinforcing member 6b connects the rear column 3a and the rear column 3b, and the reinforcing member 6c connects the front column 2a and the rear column 3a. The reinforcing member 6d connects the front column 2b and the rear column 3b. In addition, the space | interval of the front side pillars 2a and 2b and the rear side pillars 3a and 3b is set in consideration of the dimension of stairs.

  The above-described heavy object 10 includes at least one of a hoisting machine used for, for example, elevator renewal work, a control panel, and a battery used as a power source in the event of a power failure. In the present embodiment, a new hoisting machine is illustrated as the heavy article 10.

  A heavy article 10 that is a new hoist is mounted on the base parts 11a and 11b, and the heavy article 10 is attached to the base part 11a by bolts that are screwed into screw holes (not shown) provided in the base parts 11a and 11b. , 11b. Rollers 12a, 12b, 12c, and 12d are provided below the base portions 11a and 11b. By comprising in this way, the heavy article 10 is integrated with the base parts 11a and 11b and can move on the floor surface 101 etc. in a state like a carriage, that is, it can be transported laterally. Yes.

  The base 11b is provided with a leg reinforcing member 14 together with the above-described legs 13a and 13b. The legs 13a and 13b are provided so that they can be expanded and contracted, that is, their mounting heights are variable relative to the base 11b, and support the load of the heavy object 10 on the stairs 100. As a structure in which the mounting height of the legs 13a and 13b is variable, for example, a plurality of bolt holes are provided at predetermined intervals in the legs 13a and 13b, and fixing bolts are selectively inserted into these bolt holes and fixed. The structure is such that the mounting height is variable using a jack base provided at the lower ends of the legs 13a and 13b.

  The leg reinforcing member 14 horizontally connects the vicinity of the top of the leg 13a and the vicinity of the top of the leg 13b in order to reinforce the leg 13a and the leg 13b. The leg reinforcing member 14 can be used as a handle when the heavy object 10 is transported while being pulled horizontally on the floor surface 101 or the like.

  Next, an embodiment of a method for stair lifting a heavy article 10 using the stair lifting device 1 according to the present embodiment described above will be described. The stair lifting method for the heavy object 10 according to the present embodiment is a method for lifting the heavy object 10 in the staircase 100 that forms a route for transporting the heavy object 10 to the floor where the elevator machine room is provided, for example, in the renovation work of the elevator. is there.

  As will be described in detail below, the stairlifting method according to the present embodiment includes a first step of installing a gate type employment 50 having a lifting means, that is, a chain block 8 on the staircase 100, and Lifting means, that is, a second step of lifting the heavy object 10 by the chain block 8, a third step of moving the heavy object 10 lifted by the chain block 8 in the horizontal direction, and the heavy object 10 as a roller 12a, 12b, the 4th step held on stairs 100 via leg 13a, 13b, and the 5th step which moves gate type employment 50 on stairs 100 are included. Further, the stair lifting method according to the present embodiment repeatedly performs the above-described part of the first step to the fifth step. Further, the present embodiment includes a step of moving the heavy object 10 on the floor surface 101 and the like via the rollers 12a to 12d in a state where the heavy object 10 is mounted on the base parts 11a and 11b.

  That is, in the stair lifting method according to the present embodiment, as a first step, the connecting column 4a is fastened horizontally with bolts to the tops of the front columns 2a and 2b, and as shown in FIG. Stand up on a predetermined stage. Next, the connecting pillar 4b is fastened to the top of the rear pillars 3a and 3b with bolts and is erected on the floor surface 101.

  Next, the rail 5 is fixed with bolts so as to connect the midpoints of the connecting columns 4a and 4b, and the front columns 2a and 2b and the rear columns 3a and 3b are expanded and contracted so that the rail 5 is horizontal. The lengths of the front pillars 2a and 2b and the rear pillars 3a and 3b are adjusted.

  Next, the reinforcing member 6a is connected to the front column 2a and the front column 2b, the reinforcing member 6b is connected to the rear column 3a and the rear column 3b, and the reinforcing member 6c is connected to the front column 2a and the rear column 3a. The reinforcing member 6d is connected to the front column 2b and the rear column 3b. By these reinforcing materials 6a to 6d, the front pillars 2a and 2b and the rear pillars 3a and 3b are not spread and kept in a vertical state.

  Finally, the trolley 7 and the chain block 8 are attached to the rail 5. The trolley 7 can move on the rail 5. With these steps, the installation of the gate-type hire 50 on the step 100 is completed.

  After installing the gate-type hire 50, the heavy object 10 mounted on the base parts 11a and 11b is horizontally pulled through the rollers 12a to 12d and arranged immediately before the stairs 100. In this process, the first step is completed.

  Next, the process proceeds to the second step. As shown in FIG. 2, the chain 9 is connected to a suspension hole (not shown) provided on the top of the heavy object 10, and the chain block 8 is operated, as shown in FIG. The heavy object 10 is lifted to a predetermined height position. Here, the predetermined height position refers to, for example, the positions of the lower ends of the rollers 12a to 12d provided at the lower portions of the base portions 11a and 11b on which the heavy objects 10 are mounted, and the stairs where the front pillars 2a and 2b are installed. Or a height position corresponding to the height of the stairs immediately before the stairs where the front pillars 2a and 2b are installed.

  Next, moving to the third step, the heavy object 10 that has been lifted is directed from the rear pillars 3a, 3b to the front pillars 2a, 2b, as shown in FIG. 4 using rollers 7a, 12b. Is moved until it contacts the stairs 100. In this case, the heavy object 10 may be moved by pulling the chain 9 from the front pillars 2a and 2b, or by pushing the leg reinforcements 14 from the rear pillars 3a and 3b.

  Next, the process proceeds to the fourth step, and after fixing by inserting fixing bolts into predetermined bolt holes among a plurality of bolt holes provided at predetermined intervals on the legs 13a, 13b, lower ends of the legs 13a, 13b. The mounting height of the legs 13a and 13b is adjusted using the jack base provided on the head. As a result, the heavy article 10 is held on the staircase 100 via the rollers 12a and 12b and the legs 13a and 13b as shown in FIG. At this point, the chain block 8 is operated to lower the chain 9 and remove the chain 9 from the heavy object 10. Next, the chain block 8 and the trolley 7 are removed from the rail 5. By doing in this way, the weight of the gate type employment 5 can be reduced.

  Next, the process moves to the fifth step. For example, each of the four workers holds the corresponding front pillars 2a, 2b and the rear pillars 3a, 3b at the same time. As shown in FIG. 6, the rear columns 3a and 3b are moved upward one step at a time until they are positioned in the vicinity of the legs 13a and 13b on the floor surface 101 on which the legs 13a and 13b are placed. After the movement, the heights of the front pillars 2a and 2b are adjusted so that the front pillars 2a and 2b are reduced in size and contact with the corresponding stairs. After moving in this way, by performing a part of the first step, that is, by attaching the trolley 7 and the chain block 8 to the rail 5, the heavy object 10 as in the second step shown in FIG. Can be lifted. Thereafter, by repeating the second step to the fifth step and a part of the first step, the heavy object 10 can be lifted up to the floor where the elevator machine room is installed via the stairs 100. .

  In addition, when the heavy article 10 is lowered from the upper floor to the lower floor using the stairs 100, the first to fifth steps described above may be performed in reverse order.

  When the above-described heavy object 10 is lifted up to the floor where the machine room is provided using the staircase 100, there may be a narrow turn such as a landing in the middle of the staircase 100. As shown in FIG. 4, the legs 13a and 13b are fixed in a state where they do not extend downward, and the rollers 12a to 12d provided at the lower portions of the base portions 11a and 11b on which the heavy objects 10 are mounted are brought into contact with the floor of the landing. To do. Then, at the landing, the operator grips the leg reinforcing member 14 and pulls the heavy object 10 in the horizontal direction to change its direction so that it is positioned immediately before the next staircase 100. Thereafter, the first step to the fifth step are sequentially executed in the same manner as described above, so that the stepped lifting of the heavy load 10 can be continued. That is, according to the present embodiment, the heavy object 10 can be lifted up to the target floor using the stairs 100 without any trouble even when there is a turnaround such as a landing.

  In the above-described embodiment, the heavy load 10 is a new hoist used for elevator renewal work, but the present invention is limited to a structure in which the heavy load is provided in relation to the elevator. There is no. The present invention can be applied when lifting various heavy objects.

  As described above, according to the stair lifting device and the stair lifting method according to the present embodiment, the heavy object 10 can be transported through the narrow and folded stair 100. Therefore, the present invention can be applied to elevator renewal work and the like, which is difficult with the prior art, and this embodiment can ensure superior versatility compared to the prior art. In addition, since the present embodiment only needs to include a small-sized and relatively simple structure of the gate type worker 50, the base portions 11a and 11b, and the rollers 12a to 12d, the configuration can be made simpler than that of the prior art. . Thereby, this embodiment can reduce a construction man-hour and construction cost compared with a prior art.

DESCRIPTION OF SYMBOLS 1 Stair lifting apparatus 2a, 2b Front side pillar 3a, 3b Rear side pillar 4a, 4b Connecting pillar 5 Rail 6a, 6b, 6c, 6d Reinforcement material 7 Trolley 8 Chain block (lifting means)
9 Chain 10 Heavy object 11a, 11b Base part 12a, 12b, 12c, 12d Roller 13a, 13b Leg 14 Leg reinforcement 50 Gate type employment 100 Stairs 101 Floor

Claims (7)

In heavy equipment for lifting heavy items that are lifted and transported on stairs,
Two gate-type structures, a rail provided by connecting the tops of the two gate-type structures, a trolley provided on the rail, and a lift provided on the trolley for lifting the heavy object A gate-type hire with heavy means,
A platform on which the heavy object is mounted; a roller provided at a lower portion of the platform; and a leg attached to the platform.
The heavy object is lifted by the gate type worker and moved in the horizontal direction, and is held on the stairs by the roller and the legs except during the movement. . The stair lifting device for heavy objects according to claim 1,
Each of the two gate-type structures of the gate-type hire includes a pair of extendable struts arranged to face each other, and a connecting pillar connecting the upper portions of the corresponding pair of struts,
The rail is provided so as to connect the connecting pillar of one of the two gate-type structures and the connecting pillar of the other gate-type structure;
The lifting means comprises a chain block;
A heavy object stair lifting device, wherein the legs are formed to be extendable and contractible. The stair lifting device for heavy objects according to claim 2,
A stair lifting device for heavy objects, comprising a reinforcing material for reinforcing the pair of support columns. In the stairlifting device for heavy objects according to any one of claims 1 to 3,
The stairs consist of stairs that form a path for transporting the heavy objects to the floor where the elevator's machine room is provided,
The heavy load stair lifting device, wherein the heavy load includes at least one of a hoist used for renewal work of the elevator, a control panel, and a battery used as a power source at the time of power failure . In the stair lifting method of the heavy article which lifts and conveys the heavy article on the staircase using the heavy article stair lifting apparatus according to claim 1,
A first step of installing the portal worker having the lifting means on the stairs;
A second step of lifting the heavy load by the lifting means of the gate type employment;
A third step of moving the weight in the state lifted by the lifting means in a horizontal direction;
A fourth step of holding the heavy object on the stairs via the roller and the leg;
And a fifth step of moving the gate-type hire on the stairs. The method for lifting a heavy object according to claim 5,
A method for lifting a heavy object in steps, wherein the steps from the first step to the fifth step are repeated. In the method for lifting stairs of heavy objects according to claim 5 or 6,
A method for lifting a heavy article in steps, comprising the step of moving the heavy article on a floor surface via the roller in a state where the heavy article is mounted on the platform.