KR101761056B1 - Prefabricated framework scaffolding capable of extending ladder rail - Google Patents

Prefabricated framework scaffolding capable of extending ladder rail Download PDF

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Publication number
KR101761056B1
KR101761056B1 KR1020160029296A KR20160029296A KR101761056B1 KR 101761056 B1 KR101761056 B1 KR 101761056B1 KR 1020160029296 A KR1020160029296 A KR 1020160029296A KR 20160029296 A KR20160029296 A KR 20160029296A KR 101761056 B1 KR101761056 B1 KR 101761056B1
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KR
South Korea
Prior art keywords
ladder
bar
vertical
extended
fixed
Prior art date
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KR1020160029296A
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Korean (ko)
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KR20160110236A (en
Inventor
이명재
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이명재
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/10—Steps or ladders specially adapted for scaffolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/17—Comprising essentially pre-assembled three-dimensional elements, e.g. cubic elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/001—Safety or protective measures against falling down relating to scaffoldings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

According to the present invention, in a prefabricated framework scaffold including a vertical bar, a horizontal support, and a vertical support, the first vertical bar and the vertical support in one space of the installation space partitioned into a pair by the vertical support, A plurality of first ladder rails extending from the first ladder rails at regular intervals; And a second ladder railing attached to the first ladder railing, the second ladder railing being pulled up to a vertical support and a second vertical rod of the other space located on the other side of the one side space.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a prefabricated framework scaffolding capable of extending a ladder rail,

The present invention relates to a prefabricated framework scaffold, and more particularly, to a prefabricated framework scaffold which is configured to selectively extend a ladder rail corresponding to a ladder portion, thereby facilitating manufacturing and providing convenience and safety in use. It is about frame scaffolding.

In general, the prefabricated framework scaffold (or P / T asiba) is installed so as to be spaced apart from the wall of the building during construction or repair of the building and various operations, thereby allowing the operator to safely perform work even in a high position.

Such a prefabricated framework scaffold includes a vertical bar, a horizontal support and a vertical support as disclosed in the public utility 20-2011-266 and utility model room 1994-8464, and the ladder rail corresponding to the ladder portion is supported by the vertical support So as to be installed in a high-rise building in a state in which a plurality of blocks are stacked, so that stable operation can be performed. .

However, in the conventional prefabricated frame scaffold, the ladder railing corresponding to the ladder portion is formed by being extended and welded between the vertical rods and the vertical supports in a state where the ladder rails corresponding to the ladder portions are parallel to the horizontal support rods, There is a problem of a decrease in productivity due to an increase in the number of sheets.

In addition, since the ladder function is provided in the horizontal direction for all the installation spaces without discriminating between the space for the elevation and the space for the operation, the work space of the worker is rather inconvenient due to the ladder rail provided to the unnecessary portion There is a problem.

On the contrary, when a ladder function is provided only for a space for lifting and lowering and a ladder function is not provided for a space for work, a safety accident such as a failure to work inadvertently occurs during operation.

In addition, since the surface of the ladder railing has a flat structure, when the operator touches the ladder railing in the state where rainwater, dew, or frost is present on the ladder railing, the operator's foot slips and a safety accident occurs have.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a scaffolding frame which can be selectively extended to extend a ladder railing corresponding to a ladder part, thereby facilitating manufacturing and providing convenience and safety in use.

It is another object of the present invention to provide a prefabricated frame framework capable of extending the ladder railing to prevent the slip of the foot of the operator by forming irregularities or wrinkles on the surface of the ladder railing to prevent slippage.

Meanwhile, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to the present invention, in a prefabricated framework scaffold including a vertical bar, a horizontal support, and a vertical support, the first vertical bar and the vertical support in one space of the installation space partitioned into a pair by the vertical support, A plurality of first ladder rails extending from the first ladder rails at regular intervals; And a second ladder railing which is pulled up to a vertical support and a second vertical rod of the other space located on the other side of the one side space while being inserted into the first ladder railing, And a plurality of fixed ladder rods extending at a predetermined interval in parallel with the horizontal support to a first vertical bar and a vertical support in one space among the pair of installation spaces partitioned by the pair of fixed ladder rods And the second ladder rail is constituted by a vertical support of the other space located on the other side of the one side space and a second support member located on the other side of the one side space in a state of being inserted into the first ladder rail, And an extended ladder bar fixed by being pulled to a vertical bar, wherein the extended ladder bar is formed at one end and is screwed to the nut when the ladder bar is stored in the fixed ladder bar A storage bolt; An extension bolt formed at the other end opposite to the storage bolt and screwed to the nut at the time of extending through the pulling rod from the fixed ladder rod in accordance with the disengagement of the screw between the storage bolt and the nut; And a latching part which is inserted into and engaged with a through hole formed in the second vertical bar when the extension bolt and the nut are screwed to each other at one end portion constituted by the storage bolt and the storage bolt, wherein the fixed ladder bar and the extended ladder bar have a plurality of through holes A prefabricated framework scaffold is provided.

Here, it is preferable that a fixing bolt is formed at the end of the hook of the extended ladder bar and a fixing nut is formed in the through hole of the second vertical bar.

Further, it is preferable that non-slip non-slip portions are formed on the surfaces of the fixed ladder bar and the extended ladder bar.

Therefore, according to the present invention, it is possible to minimize the work of welding or the like according to the configuration of the ladder portion during manufacture of the prefabricated framework scaffold, thereby facilitating the manufacturing and also providing the ladder function selectively in a specific space, .

Further, the surface of the ladder railing can be formed with irregularities or wrinkles for preventing slippage, thereby preventing the foot of the operator from slipping.

On the other hand, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

FIG. 1 is a perspective view illustrating a scaffold frame according to a preferred embodiment of the present invention; FIG.
Fig. 2 is a front view showing the scaffolding frame of Fig. 1; Fig. And
Fig. 3 is a view showing a configuration and an action of the ladder portion in the prefabricated frame framework of Fig. 1. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a scaffolding frame according to a preferred embodiment of the present invention, FIG. 2 is a front view showing the scaffolding frame of FIG. 1, and FIG. 3 is a cross- Fig.

1 to 3, a prefabricated mold scaffold according to a preferred embodiment of the present invention includes a vertical bar 10, a lateral support 20, and a vertical support 30, The first vertical bar 11 and the vertical support 30 in the left space among the installation space partitioned into the pair by the vertical support 30 are spaced apart from each other by a predetermined distance in parallel with the horizontal support 20, A plurality of first ladder railing 40 extending from the first ladder railing 40 to the vertical support 30 and the second vertical rod 12 located on the right side of the left space in a state of being inserted into the first ladder railing 40, And a second ladder railing 50 fixed while being pulled. Optionally, the ladder railing may be extended or extended through pulling of the second ladder railing 50, thereby providing convenience in use and improving productivity.

Here, the prefabricated frame scaffold of the present invention is configured such that the upper and lower portions of the pair of vertical rods 10 on the right and left sides are connected to each other by the transverse support rods 20, At this time, the vertical supports 30 are positioned at the center of the length of the horizontal supports 20 so that the horizontal supports 20 are connected to each other, and a pair of installation spaces are formed on the left and right sides with respect to the vertical supports 30 It is preferable that a pair of the body of the framework scaffold is partitioned and connected to each other by a cross-shaped crossing reinforcement (not shown) so as to be made into one frame scaffolding unit.

In addition, a workbench (not shown) for connecting the pair of horizontal support rods 20 to each other is provided at the upper end of the two pairs of vertical rods 10 so that the operator can perform a stable operation thereon, A plurality of frame scraping unit members may be stacked by a known method.

The first ladder railing 40 is connected to the first vertical bar 11 and the vertical support 30 of the left space among the installation space partitioned by the vertical support 30 in parallel with the horizontal support 20 And a plurality of fixed ladder rods 41 that are extended and formed at regular intervals in a state of being fixed.

The plurality of fixed ladder rods 41 are hollow rods welded to the first vertical rods 11 and the vertical rods 30 so that the ladder function is fixed to the left space, The nut 42 having a thread is formed on the inner surface of the end portion to be joined to the end portion.

The fixed ladder rods 41 may be threaded in place of the nut 42 and the nut 42 may be extended from the fixed ladder rod 41 It is possible to stably maintain the screwed state of the corresponding portion when extending or retracting.

The fixed ladder rods 41 are preferably formed with a plurality of holes (not shown) perforated in the lower portion thereof to ventilate and drain the hollow portion, thereby improving durability against corrosion.

The second ladder railing 50 is pulled up to the vertical support 30 and the second vertical bar 12 of the right space located on the right side of the left space while being inserted into the first ladder railing 40. [ And an extended ladder bar 51 which is fixed as it is.

The extended ladder bar 51 is pulled up to the vertical support base 30 and the second vertical bar 12 so that the ladder function is selectively given to the right space while being inserted through the fixed ladder rods 41, A bar that is engaged with the end of the rod 41 and the second vertical bar 12 is formed with a storage bolt 52 that is screwed to the nut 42 in the retracted state at the one end of the fixed ladder bar 41 And is screwed to the nut 42 at the other end portion opposed to the storage bolt 52 at the extension through the pulling rod 41 from the fixed ladder bar 41 in accordance with the disengagement of the storage bolt 52 and the nut 42, And the nut 42 is screwed to the one end of the bolt 52. The nut 42 is screwed into the through hole 52 formed in the second vertical bar 12, (54) which is inserted into and engaged with the engaging portion (12a) so as to stably maintain the extended state.

The extended ladder rods 51 may be threaded in place of the bolts 52 and 53 and the bolts 52 and 53 may be threaded to the nut 42 of the fixed ladder rod 41. [ The extended ladder bar 51 is slidably extended from the fixed ladder bar 41 and slid in the opposite direction so that the extended ladder bar 51 can be maintained in a stable state when extended or retracted from the fixed ladder rod 41 through screw connection to the fixed ladder rod 41. [ It is possible to prevent a safety accident that is generated when it is stored.

In addition, the extended ladder bars 51 are preferably formed with a plurality of holes (not shown) perforated in the lower portion thereof to ventilate and drain the hollow portion, thereby improving durability against corrosion.

The fixed ladder bar 41 and the extended ladder bar 51 according to the present invention are formed with a plurality of through holes (not shown) in the lower portion thereof, The contact portion between the fixed ladder rod 41 and the extended ladder rod 51 is set at a position between the inner surface of the fixed ladder rod 41 and the outer surface of the extended ladder rod 51 It is possible to prevent the storage from being quickly released due to mutual freezing.

A fixing bolt 55 is further formed at an end of the latching hole 54 of the extended ladder bar 51 and is inserted into the through hole 12a of the second vertical bar 12 Further, a fixing nut 12b is formed.

When the extension ladder bar 51 is released from the fixed ladder bar 41 and the extended ladder bar 51 is fixed to the second vertical bar 12, the extension bolt 53 and the nut 42 are screwed The fixing bolt 55 of the stopper 54 can be screwed to the fixing nut 12b of the through hole 12a so that both end portions of the extended ladder bar 51 are engaged with the vertical support 30 and the second Can be screwed to the vertical bar (12) and fixed more stably.

In the assembled mold scaffold according to the present invention, the surfaces of the fixed ladder bar 41 and the extended ladder bar 51 are processed by a press or a machining apparatus to form anti-slip non-slip portions 42, .

Thus, in the state where rainwater, dew, frost, or the like exists on the surfaces of the fixed ladder bar 41 and the extended ladder bar 51, slippage can be prevented even if the operator steps on the ladder bar, .

Hereinafter, the operation of the prefabricated frame scaffold according to the preferred embodiment of the present invention will be described.

First, the upper and lower portions of the pair of vertical rods 10 are connected to each other by the horizontal support rods 20, and the vertical support rods 30 are positioned between the horizontal support rods 20, And a pair of frame scaffold bodies having the divisionally partitioned state are mutually connected by the crossing bar 60 to produce one frame scaffolding unit.

The vertical supports 30 are spaced apart from the first vertical bars 11 in the left space and parallel to the horizontal supports 20 from the vertical supports 30, A plurality of first ladder railing members 40 constituting an elongated structure are formed and the vertical support 30 of the right space positioned on the right side of the left space and the second vertical rods The second ladder railing 50 is fixed while being pulled up to the second ladder railing 50.

The entire extended ladder bar 51 of the second ladder railing 50 except for the latching hole 54 is provided in the first space of the first ladder railing 50 in order to provide the ladder function only in the left space among the installation spaces divided by the vertical supports 30. Therefore, And is stored in the hollow portion of the fixed ladder bar 41 of the ladder railing 40.

At this time, the storage bolt 52 formed on the side of the latch 51 of the extended ladder bar 51 is screwed to the nut 42 formed on the end of the fixed ladder bar 41 located on the side of the vertical support 30 , The extended ladder bar (51) does not extend from the fixed ladder rod (41) while being slid, and stably stored. That is, as the storage bolt 52 of the extended ladder rod 51 and the nut 42 of the fixed ladder rod 41 are screwed together, the mutual interference between the fixed ladder rod 41 and the extended ladder rod 51 Therefore, even if vibration or vibration occurs during use, the extended ladder bar 51 is naturally slid from the fixed ladder rod 41 to prevent the stored state from being released, thereby preventing a safety accident.

In order to provide the ladder function in the right space among the installation spaces divided by the vertical support 30, the extended ladder bar 51 is accommodated in the fixed ladder bar 41, The ladder bar 51 of the extended ladder bar 51 is inserted into the through hole 12a of the second vertical bar 12 after the elongated ladder bar 51 is pulled from the first vertical bar 41. As a result,

At this time, the extension bolt 53 formed on the other side of the latching hole 51 of the extended ladder bar 51 is screwed to the nut 42 formed on the end of the fixed ladder bar 41 located on the vertical support base 30 side , The extended ladder bar (51) slides on the hollow portion of the fixed ladder bar (41) and is stably maintained without being accommodated. That is, as the extension bolt 53 of the extended ladder bar 51 and the nut 42 of the fixed ladder bar 41 are screwed together, the mutual interference between the fixed ladder bar 41 and the extended ladder bar 51 Therefore, even if vibration or vibration occurs during use, the extended ladder bar 51 is naturally prevented from sliding into the fixed ladder rod 41, thereby preventing a safety accident.

A fixing bolt 55 is further formed at an end of the latching hole 54 of the extended ladder bar 51 and a fixing nut 12b is further formed inside the through hole 12a of the second vertical bar 12 The fixing bolt 55 of the stopper 54 can be screwed to the fixing nut 12b of the through hole 12a when the extension bolt 53 and the nut 42 are screwed together, Both ends of the vertical bar 51 can be screwed to the vertical support 30 and the second vertical bar 12 to be more stably fixed.

When the slip prevention non-slip portions 42 and 56 are formed on the surfaces of the fixed ladder rod 41 and the extended ladder rod 51, the surface of the fixed ladder rod 41 and the extended ladder rod 51 may be exposed to rainwater Even if dew or frost is present, it is possible to prevent slippage even if a worker steps on the ladder bar, thereby preventing a safety accident.

Therefore, according to the present invention, it is possible to minimize the work of welding or the like according to the configuration of the ladder portion during manufacture of the prefabricated framework scaffold, thereby facilitating the manufacturing and also providing the ladder function selectively in a specific space, .

In addition, the ladder structure can be extended and accommodated by extending the ladder bar from the fixed ladder bar. In this case, the extension and storage state are secured through the screw connection of the bolt and the nut, And the cost can be reduced.

Although the present invention has been described with reference to the specific embodiments, various modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the invention is not to be determined by the embodiments described, but should be determined by equivalents of the claims and the claims.

Claims (3)

In a prefabricated framework scaffold comprising vertical rods (10), transverse supports (20) and vertical supports (30)
The first vertical bar 11 and the vertical support 30 are spaced apart from each other by a predetermined distance in parallel with the horizontal support 20 from one space of the installation space partitioned by the vertical support 30, A plurality of first ladder railing (40);
The second ladder railing 50 is pulled up to the vertical support 30 and the second vertical rods 12 of the other space located on the other side of the one side space while being inserted into the first ladder railing 40 Including,
The first ladder railings 40,
The first vertical bar 11 and the vertical support 30 are spaced apart from each other by a predetermined distance in parallel with the horizontal support 20 from one space of the installation space partitioned by the vertical support 30, And a plurality of fixed ladder rods (41)
The plurality of fixed ladder rods (41)
A nut 42 having a thread is formed on the inner surface of the end portion joined to the vertical support 30,
The second ladder railings 50,
An extended ladder bar 51 which is fixed while being pulled up to the vertical support 30 and the second vertical bar 12 of the other space located on the other side of the one side space while being inserted into the first ladder railing 40, / RTI >
The extended ladder bar (51)
A storage bolt 52 formed at one end and screwed to the nut 42 in the retracted state by the fixed ladder rod 41;
And is provided at the other end opposite to the storage bolt 52 so as to extend from the fixed ladder rod 41 in accordance with the disengagement of the storage bolt 52 and the nut 42, Bolts 53; And
And a stopper 54 which is inserted into and engaged with the through hole 12a formed in the second vertical bar 12 when the extension bolt 53 and the nut 42 are screwed to each other at one end constituted by the storage bolt 52 and,
The fixed ladder bar (41) and the extended ladder bar (51)
A plurality of through holes (not shown) are formed in the lower portion,
A fixing bolt 55 is formed at the end of the latching hole 54 of the extended ladder bar 51 and a fixing nut 12b is formed inside the through hole 12a of the second vertical bar 12. [ Prefabricated frame scaffolding. delete The method according to claim 1,
Slip non-slip portions (42, 56) are formed on the surfaces of the fixed ladder bar (41) and the extended ladder bar (51).
KR1020160029296A 2015-03-12 2016-03-11 Prefabricated framework scaffolding capable of extending ladder rail KR101761056B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150034348 2015-03-12
KR20150034348 2015-03-12

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KR101761056B1 true KR101761056B1 (en) 2017-07-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200496863Y1 (en) 2022-05-26 2023-05-12 박희석 Scaffold

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102151311B1 (en) * 2018-11-15 2020-09-02 (주)알포터 Assembly type stacking rack
KR102428437B1 (en) * 2020-08-14 2022-08-02 박중석 Scaffold for construction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200403443Y1 (en) * 2005-09-13 2005-12-09 주식회사 엘엔비 Guard rail
KR101012339B1 (en) * 2010-09-30 2011-02-09 (주)대진가설산업 An expandable safety-shield installation device
KR101462215B1 (en) * 2014-07-07 2014-11-20 이장섭 Framework scaffolding prefabricated with improved safety and functionality

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200403443Y1 (en) * 2005-09-13 2005-12-09 주식회사 엘엔비 Guard rail
KR101012339B1 (en) * 2010-09-30 2011-02-09 (주)대진가설산업 An expandable safety-shield installation device
KR101462215B1 (en) * 2014-07-07 2014-11-20 이장섭 Framework scaffolding prefabricated with improved safety and functionality

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200496863Y1 (en) 2022-05-26 2023-05-12 박희석 Scaffold

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