KR20100025374A - Safety scaffold device of lift for construction - Google Patents

Safety scaffold device of lift for construction Download PDF

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Publication number
KR20100025374A
KR20100025374A KR1020080084091A KR20080084091A KR20100025374A KR 20100025374 A KR20100025374 A KR 20100025374A KR 1020080084091 A KR1020080084091 A KR 1020080084091A KR 20080084091 A KR20080084091 A KR 20080084091A KR 20100025374 A KR20100025374 A KR 20100025374A
Authority
KR
South Korea
Prior art keywords
lift
safety
scaffold
door
footrest
Prior art date
Application number
KR1020080084091A
Other languages
Korean (ko)
Inventor
윤치순
Original Assignee
케이엔에프중공업주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 케이엔에프중공업주식회사 filed Critical 케이엔에프중공업주식회사
Priority to KR1020080084091A priority Critical patent/KR20100025374A/en
Publication of KR20100025374A publication Critical patent/KR20100025374A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
    • B66B13/28—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between car or cage and wells
    • B66B13/285—Toe guards or apron devices

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  • Types And Forms Of Lifts (AREA)

Abstract

The present invention relates to a safety scaffolding device for a construction lift, which is installed on a lower bracket of the lift and is installed to rotate the safety scaffolding, and a scaffold installation unit supporting a safety scaffold flipped to a building side; A scaffold pivot fixed to one side of the scaffold and coupled to the scaffold installation to pivot together with the scaffold; A footrest driving unit installed below the door of the lift to move up and down, and rotating the footrest when it is raised to rotate the safety footrest to the side of the building, and reversely rotating the safety footrest to the side of the door of the lift when descending; Is made of.

Therefore, when the door of the lift is opened, the safety scaffold automatically spreads to fill the space between the building and the lift, thus preventing the safety accident that the worker's foot falls into the space between the building and the lift without the operator having to make an effort to spread the safety scaffold. In addition, there is no need to lower the safety foot manually, so even if there are items such as tools or construction materials in the hands of the workers on the lift, they can get off and get off the lift conveniently and safely.

Description

Safety scaffold device of lift for construction

The present invention relates to a safety scaffolding device for a construction lift, and more particularly, when the door of the lift is opened, the free end of the safety scaffold is automatically flipped to the building side, and when the door of the lift is closed, the free end of the safety scaffold to the door side of the lift. It relates to a safety scaffolding device for a construction lift that is automatically flipped.

In general, a construction site is provided with a lift (lift) for transporting construction materials or manpower by floor. The lift is installed to move up and down along the mast, which is erected vertically. These lifts are controlled to stop at the floor door of the construction site being called. When the lift arrives, the door of the lift opens, flipping the footrest connected to the front of the building in front of the building safety door and opening the safety door. As described above, in the conventional construction lift, when the lift stops on the floor, the door is opened, the footrest is lowered to the building side, and the work of opening the safety door of the floor is sequentially performed.

The work of lowering the scaffold to the building side is very important when using a construction lift. The apartment and the lift under construction are separated by the construction location, and the space is a relatively large distance from which a worker's feet can be taken out.

Therefore, when the lift stops on the floor and the door of the lift is opened, the step of lowering the footrest to the building must be performed so that the gap is filled by the foothold.

The conventional construction lift has to perform the work of lowering the scaffold to the building side by hand every time the worker gets off the lift. Inadvertently, if you get off the lift without lifting the scaffold to the building side, a safety accident such as a worker's foot falls into the space between the building and the lift occurs.

The task of lowering the scaffold of the lift to the building side seems relatively simple, but it is not the case when an item such as a tool or construction material is held in the hand of the operator who boards the lift. To lower the scaffold, the hand held on the floor of the lift must be lowered, and the scaffold must be lifted and lifted again, which makes the worker very troublesome and adds to the worker's fatigue.

An object of the present invention for solving the above problems is that the free end of the safety footrest is automatically flipped to the building side when the door of the lift is opened, and the free end of the safety footrest is automatically flipped to the door side of the lift when the door of the lift is closed. The present invention provides a safety scaffolding device for a construction lift.

In the safety scaffolding device for a construction lift of the present invention for achieving the above object, in the safety scaffolding device for a construction lift provided to expand or fold the safety scaffold to the space between the lift and the building when the door of the lift is opened and closed, A footrest installation unit installed on the lower bracket of the lift and installed to pivot the safety foothold and supporting the safety footrest folded to the building side; A scaffold pivot unit fixed to one side of the safety scaffold and coupled to the scaffold installation part to rotate together with the safety scaffold; It is installed on the lower part of the door of the lift and lifted along it, and when the lift is rotated to rotate the scaffold to turn the safety footrest to the building side, and when descending the scaffold driver for reverse rotation so that the safety footrest flips to the door side of the lift It characterized by consisting of;

According to another aspect of the present invention, a safety scaffolding device for a construction lift includes: an installation bar fixed to a lower bracket at a lower portion of the front of the lift, and a vertical bar fixed to the front of the lower and lower brackets of the installation bar to act on the installation bar. A lower reinforcing piece for supporting a load, a boss fixed to the front upper part of the installation bar, a support bracket fixed to the front lower part of the installation bar and supporting a safety footrest folded to the building side, the support bracket, the installation bar, It is fastened to the lower bracket consists of a fixing bolt and a fixing nut for fixing the support bracket and the installation bar to the lower bracket of the lift.

Further features of the safety scaffolding device of the construction lift of the present invention, the scaffolding pivot, the hinge shaft is fixed to one side of the safety scaffold and coupled to the boss to rotate the safety scaffold about the boss, and the hinge shaft It is composed of a pinion gear which is fixed at both ends and rotates with it.

Another feature of the safety scaffolding device of the construction lift of the present invention, the scaffolding driving unit, the fixing bracket is coupled to the lower door of the lift, the upper end is fixed to the fixing bracket to be elevated along the door of the lift, when the lift Rotating the pinion gear is rotated so that the safety scaffold is flipped to the building side, and when descending, the rack rotates the pinion gear reversely so that the safety scaffold rotates to the door side of the lift.

The present invention as described above, when the lift door is opened, the rack gear of the scaffold driving portion is raised to rotate the pinion gear of the scaffold rotation portion and the free end of the safety scaffold is automatically flipped to the building side by the rotation of the pinion gear. If the door of the lift is closed, the rack gear is lowered and the pinion gear is reversed so that the free end of the safety platform is automatically flipped to the door of the lift. Therefore, when the door of the lift is opened, the safety scaffold is automatically unfolded to fill the space between the building and the lift, thus preventing the safety accident that the worker's foot falls into the space between the building and the lift without the operator having to make an effort to spread the safety scaffold. In addition, there is no need to lower the safety foot manually, so even if the worker's hand on the lift contains items such as tools or construction materials, they can get off and get off the lift conveniently and safely.

Specific features and advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.

1 is a schematic perspective view showing a safety scaffolding device for a construction lift of the present invention, Figure 2 is a schematic side view showing a state in which the safety scaffold is folded to the building side by the door of the lift is open. 3 is a schematic side view showing a state in which the door of the lift is lowered, and FIG. 4 is a schematic side view illustrating a state in which the safety scaffold is rotated to the door side because the door of the lift is completely closed.

The safety scaffolding device for a construction lift of the present invention is provided to automatically expand or fold the safety scaffold 4 to the space side between the lift 1 and the building when the door 3 of the lift 1 is opened and closed. This invention is largely divided into the footrest installation part 10, the footrest rotation part 20, and the footrest drive part 30. As shown in FIG.

The footrest mounting portion 10 is fixed to the lower bracket 2 of the lift 1 and is installed to pivot the safety footrest 4 and serves to support the safety footrest 4 that is turned to the building side.

The scaffold mounting portion 10 is provided with an installation bar 11 fixed to the lower bracket 2 at the front lower part of the lift 1. The lower reinforcing piece 12 is fixed to the lower part of the installation bar 11 and the front surface of the lower bracket 2 so as to support the vertical load acting on the installation bar 11. The cylindrical boss 13 is fixed to the front upper part of the installation bar 11. The boss 13 supports the hinge shaft 21, which will be described later, to rotate.

The support bracket 14 is fixed to the front lower portion of the installation bar 11 so as to support the safety footrest 4 flipped to the building side. The support bracket 14 has a cross-sectional shape formed in an L-shape, one side of which is fixed to a corresponding side of the installation bar 11, and the bottom of the pivoted safety footrest 4 is supported on the upper surface.

The fixing bolt 15 penetrates the support bracket 14, the installation bar 11, and the lower bracket 2, and the fixing nut 16 is fastened to the end of the fixing bolt 15. The fixing bolt 15 and the fixing nut 16 serves to fix the support bracket 14 and the installation bar 11 to the lower bracket 2 of the lift 1.

The scaffold pivot 20 is fixed to one side of the safety scaffold 4 and is coupled to the scaffold mounting portion 10 to be rotated together with the safety scaffold 4. The scaffold pivot 20 includes a hinge shaft 21 and a pinion gear 22.

The hinge shaft 21 is rotated together with the hinge shaft 21 when one side of the safety footrest 4 is fixed to the hinge shaft 21 so that the hinge shaft 21 is rotated. This hinge shaft 21 is coupled to the boss 13 and is installed to rotate within the boss 13.

The pinion gear 22 is fixed to both ends of the hinge shaft 21. Therefore, when the pinion gear 22 is rotated, the hinge shaft 21 is rotated with it, and when the hinge shaft 21 is rotated, the safety scaffold 4 fixed to the hinge shaft 21 is rotated. Therefore, when the pinion gear 22 is rotated, the safety footrest 4 is rotated about the boss (13).

The scaffold driver 30 is installed at the lower part of the door 3 of the lift 1 to be elevated along this, and rotates the scaffold pivot 20 to rotate so that the safety scaffold 4 is flipped toward the building side when descending. At the time, the safety footrest 4 is turned back so as to be turned to the door 3 side of the lift.

The scaffold driving unit 30 is composed of a fixing bracket 31 and a rack gear (32). The fixing bracket 31 has a c-shaped cross section so as to be coupled to the lower part of the door 3 of the lift 1. The fixing bracket 31 coupled to the lower end of the door 3 may be fixed to the door 3 by welding, or may be fastened by a screw (not shown).

 The rack gear 32 is fixed to the lower portion of the fixing bracket 31. The rack gear 32 is lifted along the door 3 of the lift 1 by fixing the upper end to the fixing bracket 31. When the door 3 is raised, the rack gear 32 rotates the engaged pinion gear 22 to rotate so that the safety scaffold 4 is flipped to the building side. When the door 3 in the open state is lowered, the rack gear 32 meshes with the pinion gear 22 and reversely rotates the safety footrest 4 to be rotated toward the door 3 side of the lift 1.

Here, the rack gear 32 may be fixed by welding to the lower portion of the fixing bracket 31 as described above, but the rack gear 32 may be directly fixed to the lower portion of the door 3 without the fixing bracket 31. .

The safety scaffolding device of the construction lift of the present invention having such a configuration is operated as follows. In the state in which the door 3 of the lift 1 is completely closed as shown in FIG. 4, the rack gear 32 is lowered to the maximum.

At this time, the pinion gear 22 is engaged with the rack gear 32 and the safety footrest 4 is rotated to 90 ° by being rotated to the front side of the door 3.

In such a state, when the lift 1 stops on the floor and the door 3 is raised as shown in FIGS. 3 and 2, the safety footrest 4 extends toward the building side and the space between the building and the lift 1. Will be filled.

That is, when the door 3 is lifted and the rack gear 32 fixed thereto is lifted, the pinion gear 22 engaged thereto is rotated. When the pinion gear 22 is rotated, the hinge shaft 21 on which the pinion gear 22 is fixed is rotated about the boss 13, thereby rotating the safety scaffold 4 fixed to the hinge shaft 21.

The safety scaffold 4 rotated in the horizontal direction is in a state where the bottom thereof is supported by the support bracket 14. The support bracket 14 prevents the safety footrest 4 from being rotated further down and supports the vertical load even when the worker steps on the safety footrest 4.

Therefore, as shown in FIG. 2, when the door 3 of the lift 1 is completely opened, the safety footrest 4 is already in a horizontal state. Therefore, when the door 3 of the lift 1 is completely opened, the operator may lower the safety footrest 4 from the lift 1 without having to flip the building side.

When the operator boards the lift 1 in the state shown in FIG. 2, the door 3 is closed as shown in FIGS. 3 and 4. When the door 3 is closed, the rack gear 32 is lowered to reverse the pinion gear 22. When the pinion gear 22 is reversely rotated, the hinge shaft 21 fixed thereto is reversely rotated, so that the safety scaffold 4 fixed to the hinge shaft 21 is rotated about the boss 13 to stand vertically. do.

This invention has the following advantages.

When the door 3 of the lift 1 is opened, the rack gear 32 of the scaffold driver 30 is lifted to rotate the pinion gear 22 of the scaffold pivot 20 and the pinion gear 22 rotates. The free end of the safety scaffold 4 is automatically flipped to the building side, and when the door 3 of the lift 1 is closed, the rack gear 32 descends and rotates the pinion gear 22 in a reverse direction. The free end of) is automatically flipped to the door (3) side of the lift (1).

Therefore, when the door 3 of the lift 1 is opened, the safety footrest 4 is automatically unfolded to fill the space between the building and the lift 1, so that the worker does not have to make any effort to spread the safety footrest 4. Safety accident is prevented that the foot of the falling into the space between the building and the lift (1).

In addition, the safety scaffold 4 does not need to be manually lowered, so even if an item such as a tool or a construction material is held in the hand of the operator who boards the lift 1, it can be conveniently and safely lowered or lifted from the lift 1.

1 is a schematic perspective view showing a safety scaffolding device for a construction lift of the present invention

Figure 2 is a schematic side view showing a state in which the safety foot is folded to the building side by opening the door of the lift

Figure 3 is a schematic side view showing a state in which the door of the lift is lowered

4 is a schematic side view showing a state in which the safety foot is rotated to the door side because the door of the lift is completely closed;

* Description of the symbols for the main parts of the drawings *

1: Lift 2: Lower Bracket

3: door 4: safety footrest

10: scaffolding installation unit 11: installation bar

12: lower reinforcement 13: boss

14: support bracket 15: fixing bolt

16: fixing nut 20: scaffolding rotating part

21: hinge shaft 22: pinion gear

30: scaffolding drive 31: fixing bracket

32: rack gear

Claims (4)

In the safety scaffolding device of the construction lift provided to expand or fold the safety footrest to the space side between the lift and the building when the door of the lift is opened, A footrest mounting portion 10 installed on the lower bracket 2 of the lift 1 and installed to pivot the safety footrest 4 and supporting the safety footrest 4 that is turned to the building side; A scaffold pivot 20 fixed to one side of the safety scaffold 4 and coupled to the scaffold installation part 10 to be rotated together with the safety scaffold 4; It is installed below the door 3 of the lift 1 and is elevated accordingly, and rotates the scaffold pivot 20 to rotate so that the safety scaffold 4 is flipped to the side of the building, and the safety scaffold when descending. Safety scaffolding device for a construction lift, characterized in that consisting of; (4) scaffolding driving unit 30 to be reversed to be turned to the door (3) side of the lift. According to claim 1, wherein the footrest mounting portion 10, An installation bar 11 fixed to the lower bracket 2 of the front lower part 1; A lower reinforcing piece 12 fixed to the lower part of the installation bar 11 and the front of the lower bracket 2 to support a vertical load acting on the installation bar 11; Boss 13 is fixed to the front upper portion of the installation bar 11, A support bracket 14 which is fixed to the front lower part of the installation bar 11 and supports the safety foot plate 4 that is turned to the building side; Fixing bolts fastened to the support bracket 14, the installation bar 11, and the lower bracket 2 to fix the support bracket 14 and the installation bar 11 to the lower bracket 2 of the lift 1. Safety scaffolding device for a construction lift, characterized in that consisting of (15) and the fixing nut (16). According to claim 2, wherein the scaffolding pivot 20, A hinge shaft 21 fixed to one side of the safety scaffold 4 and coupled to the boss 13 to rotate the safety scaffold 4 about the boss 13; Safety scaffolding device for a construction lift, characterized in that consisting of the pinion gear 22 is fixed to both ends of the hinge shaft 21 and rotated therewith. According to claim 3, wherein the scaffold driving unit 30, A fixing bracket 31 coupled to the lower part of the door 3 of the lift 1, The upper end is fixed to the fixing bracket 31 to be lifted along the door 3 of the lift 1, and rotates the pinion gear 22 to rotate so that the safety footrest 4 is turned to the side of the building when raised. Safety scaffolding device for a construction lift, characterized in that consisting of a rack gear 32 to rotate the pinion gear 22 in reverse direction so that the safety scaffold 4 is rotated to the door 3 side of the lift (1) .
KR1020080084091A 2008-08-27 2008-08-27 Safety scaffold device of lift for construction KR20100025374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080084091A KR20100025374A (en) 2008-08-27 2008-08-27 Safety scaffold device of lift for construction

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Application Number Priority Date Filing Date Title
KR1020080084091A KR20100025374A (en) 2008-08-27 2008-08-27 Safety scaffold device of lift for construction

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KR20100025374A true KR20100025374A (en) 2010-03-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663026A (en) * 2013-11-26 2014-03-26 苏州踵力重型机械有限公司 Construction elevator
CN109761130A (en) * 2019-03-13 2019-05-17 曹真玮 A kind of construction elevator haul platform
CN110395649A (en) * 2018-04-25 2019-11-01 奥的斯电梯公司 The sill component in the reduction gap for lift car
CN113697644A (en) * 2021-08-17 2021-11-26 杭州职业技术学院 Elevator with wheels capable of passing through car conveniently
CN115354864A (en) * 2022-08-02 2022-11-18 浙江宝盛建设集团有限公司 Variable floor height assembled construction elevator business turn over material platform

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663026A (en) * 2013-11-26 2014-03-26 苏州踵力重型机械有限公司 Construction elevator
CN103663026B (en) * 2013-11-26 2016-11-23 青岛玉兰祥商务服务有限公司 Construction elevator
CN110395649A (en) * 2018-04-25 2019-11-01 奥的斯电梯公司 The sill component in the reduction gap for lift car
CN109761130A (en) * 2019-03-13 2019-05-17 曹真玮 A kind of construction elevator haul platform
CN113697644A (en) * 2021-08-17 2021-11-26 杭州职业技术学院 Elevator with wheels capable of passing through car conveniently
CN115354864A (en) * 2022-08-02 2022-11-18 浙江宝盛建设集团有限公司 Variable floor height assembled construction elevator business turn over material platform

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