KR101588418B1 - Prefabricated stair having convertible stair panel - Google Patents

Prefabricated stair having convertible stair panel Download PDF

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Publication number
KR101588418B1
KR101588418B1 KR1020150040660A KR20150040660A KR101588418B1 KR 101588418 B1 KR101588418 B1 KR 101588418B1 KR 1020150040660 A KR1020150040660 A KR 1020150040660A KR 20150040660 A KR20150040660 A KR 20150040660A KR 101588418 B1 KR101588418 B1 KR 101588418B1
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KR
South Korea
Prior art keywords
stepped
plate
staircase
adjusting means
fixing bolt
Prior art date
Application number
KR1020150040660A
Other languages
Korean (ko)
Inventor
정운옥
Original Assignee
주식회사 선우이앤지
(주)한빛종합건축사사무소
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Priority to KR1020150040660A priority Critical patent/KR101588418B1/en
Application granted granted Critical
Publication of KR101588418B1 publication Critical patent/KR101588418B1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F2011/1046—Miscellaneous features of treads not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)

Abstract

The present invention relates to an assembled staircase in which a step plate capable of being installed in a movable manner is installed. The stair step elevator includes a plurality of stepped elevators installed at predetermined intervals in each of the two side stringer frames provided at an angle to the inside of the staircase of the building at an angle, In a prefabricated staircase comprising a plurality of stepped plates movably installed,
A stair elevator fixedly installed at a predetermined interval in the stringer frame, the stair elevator including at least one control space and a cutout for opening the control space upward; A fixing bolt having a head part and a male screw part protruding upward through the incision part; A supporting bolt formed symmetrically to be exposed at a bottom of the step plate with an insertion space formed at regular intervals so as to insert the male screw portion of the fixing bolt; At least one movement adjusting means formed in the left and right longitudinal direction of the step plate so as to allow the step guide plate to be installed in the left and right width direction of the stringer frame; And a square washer having a female screw hole in which a male screw portion of a fixing bolt to be inserted into the insertion gap between the support jaws is threadedly assembled is movably installed in a slide guide groove formed in the movement adjusting means .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated stair having a convertible stair panel,

The present invention relates to an assembled staircase having a stepped plate capable of being installed in a movable manner, and more particularly, to a stringer frame of a built-up stepped staircase installed in a staircase, each stepped plate can be moved at predetermined intervals toward both left and right sides. It is possible to facilitate the installation of the assembled staircase and the construction of the staircase, and the construction air of the staircase and the staircase can be shortened, To a prefabricated staircase in which a stringer frame constituting an assembled staircase, each installed elevator and each staircase installed therein are disassembled and separated for reuse.

Typically, high-rise buildings such as apartments are equipped with pedestrian stairs.

Usually, the stairs are arranged in a staircase of a narrow space in a zigzag pattern or a spiral pattern, and the staircase has a complicated structure in which a plurality of stairs must be installed at regular intervals.

There is a reinforced concrete stair which is constructed integrally with a wall of a conventional building or a wall of a staircase.

Since the reinforced concrete stairs are constructed integrally with the wall surface of the building or the wall of the staircase, it is pointed out that the construction speed is very late, and thus it has a great effect on slowing the building air of the building.

Therefore, a prefabricated stairway has been proposed, which is conventionally constructed by a construction method different from the building construction method.

The conventional assembled stairs are constructed to be constructed by welding work and bolt assembling work using a steel frame and an iron plate as welding work is very cumbersome and laborious and requires a lot of manpower and time, cost of installation is high, In addition, steel frame and steel plate are heavy and can not safely protect workers from safety accidents. Particularly, the assembled staircase made of steel frame and steel plate has a problem in that the higher the height of the building, .

Therefore, the inventor of the present invention has invented the assembled step of the patent 10-1008261 in order to solve the problem of the assembled step.

The prior art of the above-mentioned Japanese Patent No. 10-1828261 improves the structure of the assembled stairs made of the existing steel frame and the steel plate to simplify the assembling structure, and the step plate of each layer is assembled into assembling parts such as pins and bolts without welding However, it has been pointed out that the installation work of the prefabricated stairway must be carried out separately from the construction of the wall of the building or the wall of the staircase.

Accordingly, the inventor of the present invention has proposed a method of using the above-mentioned stair-stepped stairs as permanent stairs when the skeleton of the building is completed and the construction of the building is completed while using the stairway as a stairway during the construction of the building of the building, and Japanese Patent No. 10-1264646 The prior art relating to the system stairway of the present invention has been proposed.

The prior art described above has an advantage in that the construction of the wall of the building or the wall of the staircase can be performed simultaneously with the installation of the system stair. However, the structure of each stair plate installed at regular intervals in the both side stringer frames, A plurality of stepped hangers fixedly installed at regular intervals in the stringer frame and the stepped plates to be installed thereon are complicated and have a large number of assembly parts, It is found that there is a problem in that it is impossible to shorten the construction air of the building due to a lot of inconveniences in the construction of the system stairway and the wall construction work because the narrow width that can be moved to the left and right is narrowly limited .

SUMMARY OF THE INVENTION The present invention has been proposed in order to overcome the above-mentioned problems of the prior art, and it is an object of the present invention to provide a staircase type straddle-type straddle- So that the assembling structure of the stair plate of the stair stepping plate can be simplified and the number of the assembled parts can be reduced and each step plate assembled to each of the plurality of stair stepping gates can be moved in a wide range Since it is possible to secure a space for installing a mold for building a wall or a stair wall of the building, the operator can easily carry out the molding work while stepping on the movable step boards In addition, after completing the wall construction, It can be installed close to the wall surface by adjusting the movement to the right position. When the building is demolished or demolished, the staircase including the stringer frame can be separated and reused, And to provide a prefabricated staircase that can reduce resource waste.

The present invention, as a means for realizing the above object,

A plurality of stairway elevators installed at predetermined intervals in the both side stringer frames installed at an angle to the inside of the staircase of the building at an angle, and a plurality of stepped stairways installed in each of the stairway elevator doors so as to be movable left and right, In the prefabricated step,

The prefabricated stair-

A plurality of stepped legs fixedly installed at a predetermined interval in the stringer frame and having at least one adjusting space and at least one incision for opening the adjusting space upward;

A fixing bolt having a head portion and a male screw portion protruding upward through the incision;

A supporting bolt formed symmetrically to be exposed at a bottom of the step plate with an insertion space formed at regular intervals so as to insert the male screw portion of the fixing bolt; A movement adjusting means for forming a slide guide groove for extending the step plate in the left and right width direction of the stringer frame so as to be elongated in the left and right direction of the step plate;

A rectangular washer having a female screw hole into which a male screw portion of a fixing bolt to be inserted into the insertion gap between the support jaws is threadedly assembled so as to be movably installed in a slide guide groove formed in the movement adjusting means;

And a control unit.

The stepped plate may be formed of a precast concrete material. When the movement adjusting means is fixed to the reinforcing bars embedded in the concrete of the precast concrete, the supporting step and the slide guide groove are formed to be exposed at the bottom of the step plate. .

The stepped plate is made of aluminum, and a plurality of reinforcing ribs and a slit hole are formed in the stepped plate. At the bottom of the stepped plate, movement adjusting means is formed to expose the supporting step and the slide guide groove .

The rectangular washer movably inserted in the slide guide groove of the movement adjusting means is formed in a bent shape at a predetermined angle so as to strongly support the both side support tines.

According to the present invention, it is possible to improve the structure of a plurality of stepped elevators fixed at predetermined intervals in each of two side stringer frames which are provided at an angle to an assembling stepped staircase installed in a stairway of a building, A plurality of stepped plates can be assembled in a simple structure in which a fixing bolt is screwed to a plurality of square washers movably inserted in slide guide grooves of the movement adjusting means, And both ends of each of the step plates assembled to the stepped elevator can be moved at predetermined intervals toward the left and right directions of the stringer frame within a range that does not depart from the both side stringer frames, And the operation And it is possible to easily carry out the installation work of the form since the stepped boards which are moved and controlled can be stepped on the foot. In addition, when the building is demolished or the steps are demolished, a stringer frame And the stepped plates of the plurality are separated and disassembled to be reusable. Therefore, it is a useful invention that can save expensive resources such as steel materials.

Fig. 1 is a view showing a stepped plate installation state of the assembled stairs for explaining the present invention. Fig.
Fig. 2 is a perspective view of the stepped plate of the assembled step of the present invention,
3 is a cross-sectional view of a stepped plate installation state of the assembled step of the present invention
4 to 6 are cross-sectional views of the stepped plate operating state of the assembled step of the present invention
7 is a cross-sectional view of an embodiment of a stepped plate of the prefabricated step of the present invention made of precast concrete material
8 and 9 are cross-sectional views of an embodiment of a stepped plate of an assembled step of the present invention made of an aluminum material

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A movable step plate capable of assembling and mounting according to the present invention will now be described in detail with reference to the accompanying drawings.

1, the assembly type staircase 1 includes a side stringer frame 2 disposed at an inner side of a staircase at a predetermined angle and a plurality of staircase elevators 3 , And a plurality of step plates (4) assembled to each of them.

A plurality of stepped elevators 3 are provided at regular intervals on the upper surface of each of the side stringer frames 2 inclined to the assembling step 1. The plurality of stepped elevating tools 3 are welded to bolts And fixedly installed on each of the stepped fasteners (3).

At least one adjustment space 31 is formed in each of the plurality of step wanders 3 and a cutout 33 is formed between the upper surface 32 of each step wand 3 and the adjustment space 31. [ And the adjustment space 31 is formed to be opened upward from the upper surface 32 of the stepped gusset 3 through the cutout portion 33.

Each of the adjustment spaces 31 formed in one or more of the stepped fasteners 3 is inserted in such a manner that the head portion of the fixing bolt 5 is hooked thereon and the male threaded portion 51 of the fixing bolt 5 is inserted into the cut- (32) of the stair trolley (3) through the opening (32).

The step plate 4 is movably assembled to each of a plurality of stepped elevators 3 fixedly installed at a predetermined interval in the stringer frame 2. To this end, the step plate 4 is provided with a fixing bolt 5 One or a plurality of movement adjusting means 7 in which a rectangular washer 6 in which a female screw hole 61 to which a male screw portion 51 is screwed is inserted so as to be slidable is formed.

The movement adjusting means 7 is provided with a slide guide groove 71 into which the rectangular washer 6 is inserted so as to be movable in the left and right longitudinal direction of the step plate 4, The support tabs 73 having the insertion gaps 72 are formed symmetrically and parallel to each other so as to allow the male screw portions 51 to be inserted.

The square washer 6 can not be rotated in the slide guide groove 71 of the movement adjusting means 7 but is installed so as to move toward the left and right longitudinal direction of the step plate 4. [ .

The washer 52 is disposed between the head portion of the fixing bolt 5 and the lower end of the cutout portion 32 of the stepped elevator 3. The washer 52 is fixed to the fixing bolt It is preferable to use a spring washer having a function of a spring so as not to cause a screw loosening phenomenon after the male screw portion 51 of the screw 5 is screwed to the female screw hole 61 of the rectangular washer 6. [

The plurality of stepped plates 4 assembled in the assembled step 1 of the present invention can be classified into an embodiment constituted by a precast concrete material 8a and an embodiment constituted by an aluminum material 8b As shown in FIG. 7, the embodiment of the precast concrete material 8a is configured such that the movement controlling means 7 is fixedly attached to the reinforcing bar 82 embedded in the concrete body 81 And the stepped plate 4 composed of the precast concrete material 8a is provided with two movement adjusting means 7 arranged at regular intervals in the front and rear direction of the concrete body 81, As shown in Fig.

8 and 9, the aluminum body 8b includes a plurality of reinforcing ribs 84 and rice subtracting holes 85 formed in the aluminum body 83, (83) is constituted by extrusion molding with aluminum material so that one or a plurality of (2) movement adjusting means (7) are integrally formed.

The operation of the assembled step (1) of the present invention constructed as described above and the plurality of stepped plates (4) assembled in the assembled manner will be described.

The assembly type stairs 1 are installed inside a staircase of a building. The assembly type stairs 1 are provided with a plurality of The stepped plates 4 are assembled one by one on the upper surface 32 of each of the stepped elevators 3. The stepped plates 4 are assembled on both side stringer frames 3, 2, a plurality of stepped girders 3 provided on the both side stringer frames 2 are provided on the stepped plates 3 when the formwork 9 is to be installed to construct the wall surface of the stepped room. (S) for securing the mold (9) safely in a state where the molds (4) are assembled one by one.

4 to 6 show the formwork 9 in a state where one stepped plate 4 is assembled to each of a plurality of stepped elevators 3 fixed to both side stringer frames 2 of the assembled step 1, And installing the concrete to construct the wall surface W. In this embodiment, In other words,

3, the stepped stairs 1 are installed in a state in which one end of the step plate 4 is in close contact with the wall surface W of the step stairs. However, in the stepped stairs 1, A plurality of step plates 4 assembled in the stringer frame 2 are installed so as to form a mold installation space S for installing the wall W of the staircase do.

Therefore, the operator rotates the respective fixing bolts 5 inserted into the adjustment space 31 of each of the plurality of step-and-step elevators 3 fixedly installed on each of the two stringer frames 2 in the screw releasing direction, The end portion of the step 51 is inserted into the slide guide groove 71 of the movement adjusting means 7 formed on each of the step plates 4 by about 1 to 3 times in the female screw hole 61 of the square washer 6 (The number of revolutions of the screw loosening is adjusted such that the fixing bolt is unscrewed so as not to be separated from the square washer), and since the fixing bolt 5 is not completely screwed off from the square washer 6, The rectangular washer 6 is fixed to the slide guide groove 71 of the movement adjusting means 7 formed on the step plate 4 in this case, So that it can move.

Therefore, the worker can mold the step plate 4 with the head of each of the fixing bolts 5 supporting the step plates 4 fixed in the adjustment space 31 of the step height wrench 3 4). At this time, the left end of the step plate 4 in the drawing is moved to a position where it does not come off the stringer frame 2, and then the screw (not shown) The stepped plate 4 is rotated in the screwing direction so that the rectangular washer 6 strongly presses the supporting step 73 of the movement adjusting means 6, The stringer frame 2 is fixed to the left and right sides of the stringer frame 2 while being moved to the right as shown in the drawing. At this time, the mold space S is formed at a position where the die 9 is to be installed.

The worker can install the formwork 9 while moving the stepped boards 4 which are moved to one side of the both side stringer frames 2 as footsteps so that the formworking work can be safely and accurately installed and the formwork 9 The concrete pouring work can be carried out while the operator stepping on each of the step plates 4, so that the concrete pouring work can be performed safely.

When the concrete laid on the formwork 9 is completely cured as described above, the formwork 9 is dismantled and the stepped plates 4 moved to the right in the drawing are moved to their original positions, As shown in the drawing, the stepped plate 4 is brought into close contact with the wall surface W. At this time, if the fixing bolt 5 is screwed and screwed, the stepped plates 4 can be moved, So that it can be fixedly installed.

On the other hand, in the embodiment in which a plurality of regulating spaces 31 are formed in each of the plurality of stepwise elevators 3 fixedly installed at regular intervals on both side stringer frames 2 provided in the assembled step 1 of the present invention, A plurality of moving adjusting means 7 are formed on each of a plurality of step plates 4 assembled on an upper surface 32 of each of the elevating tools 3, A plurality of fixing bolts 5 inserted into each of the plurality of adjustment spaces 31 formed in each of the stepped plates 4 are inserted into the slide guide grooves 71 of the plurality of movement adjusting means 7 formed on the respective step plates 4 A plurality of stepped plates 4 are assembled and mounted on each of a plurality of stepped elevators 3 fixed to the stringer frame 2 with a structure in which a plurality of square washers 6 installed are screwed together.

In the embodiment in which the adjustment space 31 is formed in each of the plurality of step height switches 3 fixed to the both side stringer frames 2 at a predetermined interval, as shown in FIG. 9, one fixing bolt 5 A plurality of step plates 4 are assembled in a structure in which a screw is assembled to one square washer 6 provided on one movement adjusting means 7 formed on the step plates 4 and 8b In this case, the rectangular washer 6 inserted into the slide guide groove 71 formed in one movement adjusting means 7 is formed in a state of being bent in a "" " So that it can be used to press strongly.

A non-slip groove for preventing slip may be formed on the upper surface of the concrete main body 81 of the precast concrete material 8a though it is not shown in the figure. On the upper surface of the aluminum main body 83 of the aluminum material 8b, (Not shown) for prevention of the occurrence of cracks.

As described above, it is possible to install the formwork 9 on one side of the stringer frame 2 in which the formwork 9 can be installed accurately even in the state where the assembling step 1 is previously installed in the staircase of the building of the present invention It is possible to form the mold installation space S. In addition, when the mold installation work and the concrete pouring work are performed, the operator steps on each step plate 4, which is installed in the stringer frame 2 at regular intervals, It is a characteristic that it can prevent a safety accident in advance because the work can be performed safely.

1: Prefabricated stairs 2: Stringer frame
3: stairway elevator 31: adjustable space
32: upper surface 33: incision
4: step plate 5: fixing bolt
51: male thread portion 52: washer
6: Square washer 61: Female thread
7: movement adjusting means 71: slide guide groove
72: insertion gap 73: support jaw
8a: Precast concrete material
8b: Aluminum material
81: concrete body 82: reinforcing bar
83: aluminum body 84: reinforcing rib
85: Lonesome balls

Claims (4)

A plurality of stepped elevators arranged at predetermined intervals in each of two side stringer frames which are installed at an angle to the inside of the staircase of the building at an angle, and a plurality of stairs installed in each of the stairway elevators, In a prefabricated staircase comprising a plate,
The prefabricated stair-
A plurality of stepped legs fixedly installed at a predetermined interval in the stringer frame and having at least one adjusting space and at least one incision for opening the adjusting space upward;
A fixing bolt having a head part and a male screw part protruding upward through the incision part;
A supporting bolt formed symmetrically to be exposed at a bottom of the step plate with an insertion space formed at regular intervals so as to insert the male screw portion of the fixing bolt; At least one movement adjusting means formed in the left and right longitudinal direction of the step plate so as to allow the step guide plate to be installed in the left and right width direction of the stringer frame;
A rectangular washer having a female screw hole into which a male screw portion of a fixing bolt to be inserted into the insertion gap between the support jaws is threadedly assembled so as to be movably installed in a slide guide groove formed in the movement adjusting means;
And a stepped plate having a movable step-like structure formed thereon.
The method according to claim 1,
The stepped plate is formed of a precast concrete material and the support step and the slide guide groove are exposed on the bottom of the step plate in a state in which the movement adjusting means is fixed to the reinforcing bars embedded in the concrete of the precast concrete A stepped staircase having a stepped plate capable of moving installation.
The method according to claim 1,
The stepped plate is made of an aluminum material, and a plurality of reinforcing ribs and a slit hole are formed in the stepped plate. On the bottom of the stepped plate, movement adjusting means is formed to expose the supporting step and the slide guide groove A prefabricated staircase with a stepped platform that allows for a movable installation.
The method according to claim 1,
Wherein the rectangular washer movably inserted in the slide guide groove of the movement adjusting means is formed in a bent shape at a predetermined angle so as to strongly support the both side support tines.
KR1020150040660A 2015-03-24 2015-03-24 Prefabricated stair having convertible stair panel KR101588418B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230008468A (en) 2021-07-07 2023-01-16 주식회사 케이에스씨 High strength concrete stairway structure
CN116335355A (en) * 2023-04-10 2023-06-27 中一达建设集团有限公司 Assembled stair construction process and construction support
CN118087806A (en) * 2024-04-22 2024-05-28 中交建筑集团东南建设有限公司 Auxiliary adjusting device for installation of prefabricated stairs and working method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2951286B2 (en) * 1997-04-21 1999-09-20 中央ビルト工業株式会社 Stair unit
JP2005314931A (en) * 2004-04-28 2005-11-10 Toyo Tekkusu:Kk Device for adjusting and fixing height of deck plate
KR100918194B1 (en) * 2009-05-14 2009-09-21 (주)중원종합건축사사무소 Balustrade coping installation an institution for building
KR101264646B1 (en) * 2012-09-10 2013-05-27 주식회사 선우이앤지 System steps with movable plates in the side direction using rail and construction method of the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2951286B2 (en) * 1997-04-21 1999-09-20 中央ビルト工業株式会社 Stair unit
JP2005314931A (en) * 2004-04-28 2005-11-10 Toyo Tekkusu:Kk Device for adjusting and fixing height of deck plate
KR100918194B1 (en) * 2009-05-14 2009-09-21 (주)중원종합건축사사무소 Balustrade coping installation an institution for building
KR101264646B1 (en) * 2012-09-10 2013-05-27 주식회사 선우이앤지 System steps with movable plates in the side direction using rail and construction method of the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230008468A (en) 2021-07-07 2023-01-16 주식회사 케이에스씨 High strength concrete stairway structure
CN116335355A (en) * 2023-04-10 2023-06-27 中一达建设集团有限公司 Assembled stair construction process and construction support
CN116335355B (en) * 2023-04-10 2023-11-24 中一达建设集团有限公司 Assembled stair construction process and construction support
CN118087806A (en) * 2024-04-22 2024-05-28 中交建筑集团东南建设有限公司 Auxiliary adjusting device for installation of prefabricated stairs and working method

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