KR20090063626A - Apparatus to protect impact for work-bench elevated position - Google Patents
Apparatus to protect impact for work-bench elevated position Download PDFInfo
- Publication number
- KR20090063626A KR20090063626A KR1020070131070A KR20070131070A KR20090063626A KR 20090063626 A KR20090063626 A KR 20090063626A KR 1020070131070 A KR1020070131070 A KR 1020070131070A KR 20070131070 A KR20070131070 A KR 20070131070A KR 20090063626 A KR20090063626 A KR 20090063626A
- Authority
- KR
- South Korea
- Prior art keywords
- lower frame
- frame
- upper frame
- handrail
- work
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
The present invention relates to a stenosis prevention device that can safely work at a high place using an aerial platform, specifically, for the aerial platform to facilitate the removal and reinstallation of the stenosis prevention device for the top of the railing of the platform It relates to a stenosis prevention device.
In general, aerial platform is used for the construction of high ceiling plumbing, ducts, lighting, and painting of high buildings, plastering, equipment, etc., are divided into various types such as straight type, refractive type.
Looking at such various types of aerial work platform, as shown in Figure 1, the
However, according to such an aerial platform, safety accidents occur frequently and largely because safety devices are not provided at the top of the platform. That is, in the process of operating the operation unit to elevate the work platform, the top of the railing of the work table often occurs due to the operator's carelessness, which is very dangerous because the structure may be severely damaged. In particular, safety accidents frequently occur when a worker on a work platform is caught between a railing and a structure and is injured or killed.
Accordingly, the present applicant has provided a stenosis prevention device installed on the railing of the workbench to immediately stop the operation of the lift unit when a stenosis accident occurs. Such a stenosis prevention device is formed to be fixed to the upper end of the railing of the workbench. frame; An upper frame formed to be installed along a railing of a work table spaced apart from the lower frame by a predetermined distance: a cushioning means coupled between the lower frame and the upper frame and configured to operate a predetermined distance up and down by an elastic force of a spring; And a limit switch interlocked with the buffer means to block the operation of the lift unit when the upper frame is lowered by a crimp or collision.
The stenosis prevention device for aerial platform of the present invention is to solve the problem that the removal and reinstallation of the stenosis prevention device from the top of the railing of the conventional platform is inconvenient and difficult.
The present invention is a lower frame formed to be fixed to the top of the handrail of the aerial platform, the upper frame formed to be installed along the railing of the workbench at a predetermined distance from the lower frame, coupled between the lower frame and the upper frame elastic force of the spring In the anti-stenosis device comprising a buffer means formed to operate by a certain distance up and down by a limit switch and a limit switch formed to block the operation of the lifting unit when the upper frame is lowered by the crimping or collision in conjunction with the buffer means,
The lower end of the lower frame is seated in close contact with the front and rear upper end of the workbench, respectively, the outer surface of the lower frame and the outer surface of the handrail is installed to be connected to the hinge to fold outward, while the upper frame is It consists of an intermediate member which is respectively installed on the upper side of the lower frame and a fixing member bent in a "c" form to be separated or combined from each of the left and right ends of the intermediate member.
In addition, both sides of each of the lower frame axially coupled to the eccentric folding prevention piece to be rotatable, when the eccentric both ends are rotated in the lower direction by the self-supporting both sides of the handrail in close contact with the lower frame on the top of the railing When it is rotated upward or more than at right angles, the eccentric both ends are formed to release the support for both sides of the handrail so that the lower frame is folded by the hinge.
According to the narrowing prevention device for aerial platform according to the present invention, the front and rear of the upper frame is formed to be separated, and the railing of the workbench and the lower frame installed at the upper end thereof are configured to be folded by the hinges. Not only does it have a very useful effect that can be easily removed and reinstalled from the top of the anti-stenosis device, but it is also more convenient and easy to use.
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Figure 2 is an exploded perspective view showing the stenosis prevention device for aerial platform applied to the present invention, Figure 3 is a state diagram showing the stenosis prevention device for aerial platform applied to the present invention, Figure 4 is a aerial platform stenosis applied to the present invention Figure 5 is another state of use showing the prevention device, Figure 5 is a cross-sectional view of the AA line showing the stenosis prevention device for aerial platform, the present invention is applied, Figure 6 is a sectional view showing the operation of Figure 4, Figure 7 Sectional drawing of the BB line | wire which shows the stenosis prevention device for work benches.
The
Thus, the
In addition, the top surface of the handrail of the work table 30 and the outer surface of the
On the other hand, both sides of each of the
Therefore, when the
The
At this time, the
In this configuration, a plurality of
On the other hand, at both bending points of the
The buffer means 160 is coupled between the
At this time, a preferred embodiment as the buffer means 160 is a
That is, the
In addition, the
In addition, the
The
On the other hand, between the
Therefore, according to such a configuration, the
Of course, the cushioning action of the
In addition, by using only the
Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.
1 is a perspective view showing a conventional aerial platform.
Figure 2 is an exploded perspective view showing a narrowing prevention device for aerial platform to which the present invention is applied.
Figure 3 is a use state showing the stenosis prevention apparatus for aerial platform to which the present invention is applied.
Figure 4 is another use state showing the stenosis prevention apparatus for aerial platform to which the present invention is applied.
Figure 5 is a cross-sectional view taken along line A-A showing a narrowing platform for aerial platform to which the present invention is applied.
6 is a cross-sectional view showing the operation of FIG.
Figure 7 is a cross-sectional view taken along line B-B showing a narrowing platform for aerial platform to which the present invention is applied.
<Brief description of symbols for the main parts of the drawings>
10: balance 20: lift
30: working table
100: stenosis prevention device
120: lower frame 122: jamming jaw
140: upper frame 142: intermediate member
142a: adjusting bolt 144: fixing member
144a: coupler 146: hinge
160: buffer means 162: link
164: spring 166: stopper
180: limit switch
200: hinge 300: folding prevention piece
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070131070A KR20090063626A (en) | 2007-12-14 | 2007-12-14 | Apparatus to protect impact for work-bench elevated position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070131070A KR20090063626A (en) | 2007-12-14 | 2007-12-14 | Apparatus to protect impact for work-bench elevated position |
Publications (1)
Publication Number | Publication Date |
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KR20090063626A true KR20090063626A (en) | 2009-06-18 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020070131070A KR20090063626A (en) | 2007-12-14 | 2007-12-14 | Apparatus to protect impact for work-bench elevated position |
Country Status (1)
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KR (1) | KR20090063626A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2366655A1 (en) * | 2010-03-15 | 2011-09-21 | René Altena | Aerial work platform |
GB2481709A (en) * | 2010-07-02 | 2012-01-04 | Blue Sky Access Ltd | Load sensitive safety device for an aerial lift |
KR101629707B1 (en) | 2015-06-25 | 2016-06-13 | 한국종합렌탈 주식회사 | Separate Safety Unit of Aerial Work Platforms |
WO2017178737A1 (en) | 2016-04-15 | 2017-10-19 | Haulotte Group | Aerial-lift working-platform control desk with protection against crushing of the operator |
CN108178109A (en) * | 2017-12-25 | 2018-06-19 | 河海大学常州校区 | A kind of Special Automatic vibration damping absorbing workbench of high-altitude operation vehicle |
CN108249371A (en) * | 2018-01-08 | 2018-07-06 | 河海大学常州校区 | A kind of aerial work platform three-dimensional automatic vibration reduction working bucket |
KR20180104412A (en) * | 2017-03-13 | 2018-09-21 | 김연한 | Compression protect device of lift for workers |
KR102039508B1 (en) * | 2019-08-16 | 2019-11-04 | (주)이엘렌탈 | Apparatus for prevention narrowness of high-place workbench |
FR3091524A1 (en) | 2019-01-09 | 2020-07-10 | Haulotte Group | Lifting platform with removable control console including operator crush protection |
-
2007
- 2007-12-14 KR KR1020070131070A patent/KR20090063626A/en active IP Right Grant
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2366655A1 (en) * | 2010-03-15 | 2011-09-21 | René Altena | Aerial work platform |
GB2481709A (en) * | 2010-07-02 | 2012-01-04 | Blue Sky Access Ltd | Load sensitive safety device for an aerial lift |
GB2481709B (en) * | 2010-07-02 | 2014-12-24 | Bluesky Solutions Ltd | Aerial lift with safety device |
KR101629707B1 (en) | 2015-06-25 | 2016-06-13 | 한국종합렌탈 주식회사 | Separate Safety Unit of Aerial Work Platforms |
US11401148B2 (en) | 2016-04-15 | 2022-08-02 | Haulotte Group | Aerial-lift working-platform control desk with protection against crushing of the operator |
WO2017178737A1 (en) | 2016-04-15 | 2017-10-19 | Haulotte Group | Aerial-lift working-platform control desk with protection against crushing of the operator |
KR20180104412A (en) * | 2017-03-13 | 2018-09-21 | 김연한 | Compression protect device of lift for workers |
CN108178109A (en) * | 2017-12-25 | 2018-06-19 | 河海大学常州校区 | A kind of Special Automatic vibration damping absorbing workbench of high-altitude operation vehicle |
CN108178109B (en) * | 2017-12-25 | 2019-10-25 | 河海大学常州校区 | A kind of Special Automatic vibration damping absorbing workbench of high-altitude operation vehicle |
CN108249371A (en) * | 2018-01-08 | 2018-07-06 | 河海大学常州校区 | A kind of aerial work platform three-dimensional automatic vibration reduction working bucket |
FR3091524A1 (en) | 2019-01-09 | 2020-07-10 | Haulotte Group | Lifting platform with removable control console including operator crush protection |
WO2020144601A1 (en) | 2019-01-09 | 2020-07-16 | Haulotte Group | Aerial lift with removable control console, comprising a protection device for preventing the operator from being crushed |
KR102039508B1 (en) * | 2019-08-16 | 2019-11-04 | (주)이엘렌탈 | Apparatus for prevention narrowness of high-place workbench |
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