KR20090062779A - Apparatus to protect impact for work-bench elevated position - Google Patents

Apparatus to protect impact for work-bench elevated position Download PDF

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Publication number
KR20090062779A
KR20090062779A KR1020070130215A KR20070130215A KR20090062779A KR 20090062779 A KR20090062779 A KR 20090062779A KR 1020070130215 A KR1020070130215 A KR 1020070130215A KR 20070130215 A KR20070130215 A KR 20070130215A KR 20090062779 A KR20090062779 A KR 20090062779A
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KR
South Korea
Prior art keywords
pressure
basket
aerial platform
alarm
pressure sensor
Prior art date
Application number
KR1020070130215A
Other languages
Korean (ko)
Inventor
우종길
Original Assignee
우종길
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 우종길 filed Critical 우종길
Priority to KR1020070130215A priority Critical patent/KR20090062779A/en
Publication of KR20090062779A publication Critical patent/KR20090062779A/en

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    • 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
    • B66F11/042—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 actuated by lazy-tongs mechanisms or articulated levers
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/026—Pressure contact

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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

An impact protecting apparatus of a work-bench at an elevated position is provided to secure safety of an operator by preventing collision of a ceiling structure and a basket by installing a pressure sensor. An impact protecting apparatus of a work-bench at an elevated position includes a pressure sensing sensor(110) and an operation control part(100). The pressure sensing sensor senses pressure according to pressure of a ceiling structure, other objects, or an operator. The operation control part stops operation of a lifting unit according to an input signal detected by the pressure sensing sensor. The pressure sensing sensor is covered by a soft plastic tube. An alarm generator(130) makes an emergency signal when a pressure signal is sensed by the pressure sensing sensor.

Description

Narrowing device for aerial platform {Apparatus to protect impact for work-bench elevated position}

The present invention relates to a narrowing prevention device of the aerial platform for smooth operation of a relatively high place, and more specifically, by installing a pressure sensor on the top surface of the handrail of the basket to raise the aerial platform according to the input of the pressure detection signal To stop the collision between the basket and the ceiling structure, as well as to prevent the stenosis of the aerial platform to prevent personal injury.

In general, the aerial platform is easily accessible equipment for work on a relatively high place in a construction site or an industrial site, such as street road work, power pole work, signage work, neon sign work and construction work. The aerial platform is interpreted as it is called the Aerial Work Platform as the name of the imported product is called the aerial platform.

Aerial platform as described above, the first production technology began to develop with the concept of automatic ladder using pneumatic. In 1966, Genie, USA, produced a pneumatic air hoist, and at the same time, UpRight Corp., in the United States, produced pneumatic lifts until the mid-1980s. Since then, the newly developed hydraulic lift has become the standard of the most popular aerial platforms to date, and the hydraulic hydraulic platform, which is differentiated from pneumatic lifts or manual lifts, has become commonplace.

On the other hand, the aerial platform, called "rental" in general construction sites, is a general term for the scissor lift and has been widely known in industrial sites through rental since the 1990s, and this equipment is more efficient than the existing steel construction or scaffolding frame. It was recognized as the most important equipment for the construction site.

The aerial platform as described above is a more comprehensive description of the hydraulic ladder, and refers to the overall industrial equipment that can be elevated. In other words, such aerial platform refers to a variety of products, such as electric, engine, manual and winch, which means the equipment that can work on high places or the equipment that can be climbed by workers. It can be classified into types such as aerial platform, articulated aerial platform, straight aerial platform and towed aerial platform.

1 is a perspective configuration diagram showing a general aerial platform.

As shown in FIG. 1, the general aerial work platform 10 is configured in the lower trolley portion 12 and the trolley portion 12 which is moved and supported by the aerial work platform 10. (14), which is configured at the upper part of the elevating operation unit 14 to operate the basket 16 and the elevating operating unit 14 in a space where an object can be mounted or a worker can climb on and lift the basket 16. It consists of a structure of an operation part (not shown).

The aerial platform 10 according to the related art configured as described above moves the aerial platform 10 through the control of the operation unit so that the object or worker is mounted on the basket 16 in a state in which the aerial platform 10 is fixedly supported on the ground. By raising and lowering (14), the basket 16 is raised and lowered to a position to work on the height. At this time, the operation unit is usually installed on the trolley 12 or the basket 16 so that the control of the aerial platform 10 by the worker on the ground or the basket 16 can be made.

However, since the safety platform to ensure the safety of the operator is not installed in the aerial platform according to the prior art configured as described above, large and small safety accidents frequently occur during the aerial operation through the aerial platform. That is, in the process of elevating the basket under the control of the operation unit, the top of the railing of the basket may collide with the ceiling structure due to the carelessness of the operator, or the worker may hit the ceiling structure.

In particular, in the aerial platform according to the prior art as described above, accidents in which the worker climbed into the basket due to the carelessness of the worker hit the ceiling structure or sandwich it between the railings of the basket and the ceiling structure are practically several times a year. Therefore, the safety measures of the aerial platform is very urgently required.

In order to solve the problems of the prior art as described above of the present invention, by installing a pressure sensor on the top surface of the railing of the basket constituting the top of the aerial platform to the pressure of the ceiling structure or other objects or operators It is an object of the present invention to provide a narrowing prevention device of the aerial platform to prevent the collision with the ceiling structure by stopping the operation of the aerial platform according to the input of the pressure signal according to the.

The present invention is configured to achieve the object as described above is as follows. That is, the narrowing prevention device of the aerial platform according to the present invention is configured on the upper and lower portions of the trolley, the upper portion of the trolley, which is moved and supported, and the upper and lower operating portions operating on the upper and lower portions of the platform. In the aerial platform with a control unit for lifting the basket by operating the basket and the lifting operation unit of the climbing space, which is installed on the top surface of the handrail of the basket, the pressure of the ceiling structure or other objects or the pressure of the operator Pressure sensing sensor; And an operation control unit for stopping the operation of the elevating operation unit according to the pressure signal sensed by the pressure detecting sensor.

In the configuration as described above, the pressure sensor may be made of a configuration covered by a soft synthetic resin tube.

On the other hand, in addition to the configuration of the present invention as described above may be further configured to generate an alarm for generating an alarm upon detection of the pressure signal by the pressure sensor. At this time, the alarm generating unit may be made of a configuration of an alarm that emits an alarm sound that can be visually recognized by the operator or the operator can visually recognize.

According to the present invention by installing a pressure sensor on the top surface of the handrail of the basket constituting the top of the aerial platform, the ceiling structure by stopping the operation of the aerial platform according to the input of the pressure signal in response to the pressurization of the ceiling structure or other objects or workers The safety of the worker can be secured by preventing the collision.

Hereinafter will be described in detail with respect to the narrowing platform of the aerial platform according to an embodiment of the present invention.

Figure 2 is a perspective configuration diagram showing a narrowing platform of the aerial platform according to the present invention, Figure 3 is a cross-sectional view showing a narrowing platform of the aerial platform according to the present invention. First, the pressure sensor in the mechanical configuration of Figs. 2 and 3 and the pressure sensor in the circuit configuration of Fig. 4 have the same function or the mechanical configuration of Fig. 2 and Fig. 3 and the circuit configuration of Fig. 4. In the drawings, the reference numerals of the pressure sensors are different from each other.

Aerial platform 10 according to the present invention is also configured in the lower portion of the trolley portion 12, the upper portion of the trolley portion 12 is moved and supported as shown in FIG. An operation unit (not shown) configured to move the basket 16 up and down by operating the basket 16 and the elevating operation unit 14 in a space that is configured at the upper portion of the unit 14 and can be mounted on or by an operator. It consists of the included configuration.

On the other hand, look at the mechanical configuration of the aerial platform narrowing prevention device according to the present invention. That is, a configuration for stopping the operation of the aerial platform 10 by detecting the pressure through the pressure sensor 20 is configured to be installed on the top surface of the handrail 16a of the basket 16 of the aerial platform 10 as described above. Is done.

In other words, the aerial platform narrowing prevention device according to the present invention is a pressure sensor 20 is installed on the top surface of the railing (16a) of the basket 16 to mount the worker or object as shown in Figs. When the pressure signal due to the pressure signal caused by the contact with the ceiling structure or other objects on the upper surface of the basket 16 rising through the operator or the pressure of the pressure sensor 20 is recognized by the operator is the lifting operation unit By stopping the operation of the (14) to prevent the collision of the ceiling structure or other objects and the basket (16).

On the other hand, in the configuration of the aerial platform narrowing prevention device according to the present invention configured as described above is installed on the top surface of the railing (16a) of the basket 16 to detect the pressure according to the pressure of the ceiling structure or other objects or operators The pressure sensor 20 has a configuration covered by a soft synthetic resin tube 22 as shown in FIG.

As described above, the cover of the pressure sensor 20 installed on the top surface of the handrail 16a of the basket 16 with the soft synthetic resin tube 22 is a peripheral object when the pressure sensor 20 is exposed to the outside. This is because there is a risk of breakage due to contact with. Therefore, when the pressure sensor 20 is covered through the soft synthetic resin tube 22, the pressure sensor 20 can be protected, and the pressing force is transmitted because the soft synthetic resin tube 22 is covered. There is no problem.

Figure 4 is a block diagram showing a circuit configuration of the narrowing platform of the aerial platform according to the present invention.

Figure 4 shows the circuit configuration of the aerial platform narrowing prevention device according to the present invention, the aerial platform narrowing prevention device according to the invention as shown in Figure 4 is to be installed on the top surface of the railing of the basket (16) Motion control unit for stopping the operation of the lifting operation unit 14 in accordance with the pressure signal detected by the pressure sensor 110 and the pressure sensor 110 by detecting the pressure according to the pressure of the ceiling structure or other objects or operators. It consists of a configuration including (100).

In the configuration of the aerial platform narrowing prevention device according to the present invention as described above, the pressure sensor 110 is the top surface of the railing (16a) of the basket 16 to mount the worker or object as shown in Figs. Is installed on the basket 16 when the rising of the pressure sensor according to the contact of the pressure sensor 110 and the ceiling structure (or other objects) or the pressure generated by the pressure of the operator to detect this to generate a pressure signal.

On the other hand, as described above, the pressure signal according to the pressing force sensed by the pressure sensor 110 is input to the operation control unit 100, the operation control unit 100 to the pressure detection signal input from the pressure sensor 110 Accordingly, the operation of the lifting operation unit 14 is stopped so that the basket 16 no longer rises upward.

As described above, when the operation of the lifting operation unit 14 is stopped according to the pressure signal detected by the pressure sensor 110 under the control of the operation control unit 100, the rising of the basket 16 is stopped and the basket ( 16) It is possible to ensure the safety of the worker on board. Of course, it is also possible to prevent the basket 16 from being damaged by hitting the ceiling structure.

Of course, after the operation of the lifting operation unit 14 is stopped according to the pressure signal sensed by the pressure sensor 110 as described above, the operation of the lifting operation unit 14 resumes again during the re-operation through the operation unit. Can be. In particular, when the operator artificially presses the pressure sensor 110 to stop the operation of the elevating operation unit 14, the operation of the elevating operation unit 14 during the reoperation through the operation unit must be possible because of course the re-operation. It is a natural configuration to allow this to be resumed.

In addition, the aerial platform narrowing prevention device according to the present invention as described above may further be configured to the alarm generating unit 130 so that the operator can be perceived acoustically or visually when the pressure is detected by the pressure sensor 110. Can be.

The alarm generating unit 130 as described above detects the pressure according to the pressure of the ceiling structure or other objects or the operator through the pressure sensor 110 to stop the operation of the lifting operation unit 14, the alarm generating unit An alert is issued through 130 to allow the operator to pay more attention. In this case, the alarm generating unit 130 may be configured as an alarm that can be visually recognized by the operator or an alarm that emits an alarm sound that can be perceived by the operator.

Referring to the aerial platform narrowing prevention device according to the invention in more detail as follows. The aerial platform narrowing prevention device according to the present invention detects the pressure according to the pressure of the ceiling structure or other objects or the operator through the pressure sensor 110, the pressure detection signal generated in response to the pressure is It is input to the operation control unit 100 as shown.

As described above, when the pressure signal is sensed according to the pressurization of the ceiling structure or other object or the operator through the pressure sensor 110, and the pressure signal is input to the operation controller 100, the operation controller 100 is inputted. By stopping the operation of the hydraulic cylinder 122 by controlling the hydraulic driving unit 120 according to the pressure signal, the lifting operation of the lifting operation unit 14 is stopped.

Of course, it is possible to lower the operation of the lifting operation unit 14 while the pressure is applied to the pressure sensor 110, but the rising operation is still disabled. In addition, when the pressure acting on the pressure sensor 110 is removed, the lifting operation of the lifting operation unit 14 is also possible.

Figure 5 is a flow chart of the operation of the narrowing platform of the aerial platform according to the present invention.

Operation sequence of the aerial platform narrowing prevention device according to the present invention configured as shown in Figure 5, first step of raising the basket 16 by operating the lifting operation unit 14 through the operation of the aerial platform 10 In S100 it detects whether the pressure is detected through the pressure sensor 110.

In step S110 it is determined whether the pressure signal by the pressure sensor 110 is input. At this time, if the pressure signal is not input by the pressure sensor 110 to proceed to step S100 to perform the detection of the pressure by the pressure sensor 110.

On the other hand, when the pressure signal is input by the pressure sensor 110, the operation control unit 100 proceeds to step S120 to stop the operation of the lifting operation unit 130 of the aerial platform 10, the basket 16 is further Do not rise above.

The technology according to the present invention is not limited to the above-described embodiments and can be carried out in various modifications without departing from the technical spirit of the present invention.

1 is a perspective view showing a typical aerial platform.

Figure 2 is a perspective configuration showing a narrowing prevention device of the aerial platform according to the present invention.

Figure 3 is a cross-sectional view showing a narrowing prevention device of the aerial platform according to the present invention.

Figure 4 is a block diagram showing a circuit configuration of the narrowing platform of the aerial platform according to the present invention.

Figure 5 is a flow chart of the operation of the anti-stenosis of the aerial platform according to the present invention.

[Description of Symbols for Main Parts of Drawing]

10. Aerial platform 12. Balance

14. Lifting operation part 16. Basket

100. Motion control unit 110. Pressure sensor

120. Hydraulic drive section 122. Hydraulic cylinder

130. Alarm Generator

Claims (4)

The lower trolley which is moved and supported, the lifting operation unit configured to operate up and down and configured on the upper portion of the trolley, and the basket of the space which is mounted on the lifting operation unit to mount an object or the worker can climb and the lifting operation In the aerial platform provided with an operation unit for lifting the basket by operating the unit, A pressure sensing sensor installed on the top surface of the handrail of the basket and sensing a pressure caused by pressure of a ceiling structure or other object or an operator; And Narrowing device of the aerial platform, characterized in that consisting of a configuration including an operation control unit for stopping the operation of the lifting operation unit in accordance with the pressure signal detected by the pressure sensor. 2. The narrowing device of claim 1, wherein the pressure sensor is covered by a soft synthetic tube. The narrowing prevention device according to claim 1 or 2, further comprising an alarm generating unit for generating an alarm upon detection of the pressure signal by the pressure detecting sensor. [5] The narrowing device of claim 3, wherein the alarm generating unit comprises an alarm light that can be visually recognized by an operator or an alarm that emits an alarm sound that can be audibly recognized by the worker.
KR1020070130215A 2007-12-13 2007-12-13 Apparatus to protect impact for work-bench elevated position KR20090062779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070130215A KR20090062779A (en) 2007-12-13 2007-12-13 Apparatus to protect impact for work-bench elevated position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070130215A KR20090062779A (en) 2007-12-13 2007-12-13 Apparatus to protect impact for work-bench elevated position

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KR20090062779A true KR20090062779A (en) 2009-06-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2481709A (en) * 2010-07-02 2012-01-04 Blue Sky Access Ltd Load sensitive safety device for an aerial lift
KR102076507B1 (en) * 2019-02-15 2020-02-12 황호순 A movable disassembly system for small-scale Asbestos board Using negative pressure
KR20200137345A (en) * 2019-05-30 2020-12-09 주식회사기원전자 Aerial work vehicles having detecting censor for worktable
KR102645359B1 (en) * 2023-06-14 2024-03-11 주식회사 신성이엔지 Lift system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR102076507B1 (en) * 2019-02-15 2020-02-12 황호순 A movable disassembly system for small-scale Asbestos board Using negative pressure
KR20200137345A (en) * 2019-05-30 2020-12-09 주식회사기원전자 Aerial work vehicles having detecting censor for worktable
KR102645359B1 (en) * 2023-06-14 2024-03-11 주식회사 신성이엔지 Lift system

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