KR101643906B1 - Safety system for basket riding person of aerial lift vehicle having interlock and controlling method of the same - Google Patents

Safety system for basket riding person of aerial lift vehicle having interlock and controlling method of the same Download PDF

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Publication number
KR101643906B1
KR101643906B1 KR1020160006797A KR20160006797A KR101643906B1 KR 101643906 B1 KR101643906 B1 KR 101643906B1 KR 1020160006797 A KR1020160006797 A KR 1020160006797A KR 20160006797 A KR20160006797 A KR 20160006797A KR 101643906 B1 KR101643906 B1 KR 101643906B1
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KR
South Korea
Prior art keywords
basket
unit
boarding
seatbelt
sensing
Prior art date
Application number
KR1020160006797A
Other languages
Korean (ko)
Inventor
김학인
김재용
Original Assignee
주식회사 광림
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Priority to KR1020160006797A priority Critical patent/KR101643906B1/en
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Publication of KR101643906B1 publication Critical patent/KR101643906B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
    • 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
    • B66F11/044—Working platforms suspended from booms
    • 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
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
    • B60R2022/4808—Sensing means arrangements therefor

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Automation & Control Theory (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety belt wear detection apparatus for a high-performance work vehicle, which can detect whether a worker on a basket is wearing a safety belt or not, And an interlock unit for limiting a control signal of the basket operation unit or the main operation unit according to the detection signal.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a safety system for a high-performance work vehicle having an interlock,

More particularly, the present invention relates to a safety system for a high-altitude work vehicle having an interlock for detecting a state of a worker on a basket and for deriving a safety state of the worker, And a control method.

Generally, a high-altitude work vehicle refers to a device that allows an operator to work at a certain altitude for the purpose of installation, demolition, or maintenance of a high-voltage line installed on a telephone pole.

The elevated work vehicle is provided with a crane comprising a plurality of expandable and contractible booms on the upper portion of the vehicle body for traveling, and is arranged so as to be rotatable in the vehicle body. In addition, a bucket is coupled to the distal end of the crane so that a worker can ride on the inside of the crane or can house the equipment.

Open Utility Model Publication No. 20-2011-0004179 discloses a high-performance work vehicle of the prior art.

The high-performance work car 100 is arranged so that a plurality of booms 200 can be combined and operated to expand and contract by hydraulic pressure. Such a boom 200 is vertically rotatable with respect to the vehicle body by a hydraulic cylinder and is often rotatable by a hydraulic motor. Therefore, the boom 200 can be stretched, vertically pivoted, and pivoted, thereby moving the tip end in all directions desired to move.

At the top end of the boom (200), a basket (300) on which a worker can ride is provided.

When the operator wishes to move the position, the rotation angle of the basket 300 is required to be changed. In order to do so, the user has to move the vehicle or manipulate the ground by the ground operator.

In recent years, the basket 300 itself is often equipped with a control panel for operation, and FIG. 2 shows such a basket portion.

As shown in the figure, the control panel 310 is coupled to the basket, and the control panel 310 is connected to a constant power source. Therefore, even when the operator is aboard the basket 300, it is easy to repair the street lamp or the signal lamp by operating the control panel 310 without receiving external assistance.

In recent years, there has been a great change in the perception of safety. In recent years, there has been a considerable change in the safety of the seatbelt It is obligatory to install a belt loop. Therefore, there are increasing cases of wearing safety belts in consideration of the risk of complaints.

However, there are a lot of cases in which work is carried out without wearing a safety belt because of the lack of practical management supervision and lack of awareness of the safety of workers, and safety accidents are also increasing.

In case of working in a basket, which is an independent space for the complaint, the wearing of the seatbelt depends on the judgment of the operator. Therefore, there is no practical way to force it.

On the other hand, in recent years, more and more people are working on the basket, and the load and condition of the basket are not considered in spite of the fact that it depends on the number of passengers.

SUMMARY OF THE INVENTION The present invention is conceived to solve the problems described above, and it is an object of the present invention to optimize the control system by detecting whether or not the vehicle is boarded or boarded in the basket of the high- And an interlock capable of guiding the wear of the high-performance work vehicle.

The present invention relates to a high-performance work vehicle including a basket and a boom, comprising: a boarding detection device for detecting a boarding of an operator to a basket to generate a boarding detection signal; A seat belt judging unit for receiving a boarding detection signal and judging boarding of an operator, and a seat belt judging unit for receiving a seat belt detecting signal and judging a worker's seat belt mounting And an interlocking part for restricting the operation of the basket operating part in accordance with the operation limiting command when the number of the safety belts is smaller than that of the occupant, System. Therefore, optimum monitoring and control according to the work state is possible.

Preferably, the control unit allows the operation of the basket operating unit to be permitted when the number of the seatbelt attaching units is equal to or greater than 1 in the seat belt judging unit when the boarding passenger is 0 in the boarding judging unit. Therefore, it can be flexibly applied to various environments.

Preferably, the interlock part is interposed in the control system of the operating device of the basket operating part to limit the transmission of the operation command signal.

The interlock section can limit the operation of the main control section when the number of the seat belts attached to the occupant is smaller than that of the occupant.

The control unit may further include an alarm unit for generating an alarm when an operation command signal of the basket operation unit occurs under the condition that the operation restriction instruction is generated.

The boarding determination unit may determine the boarding passengers after the boarding pass is determined, and the seatbelt determination unit may determine the number of seatbelt attachments after the determination of the boarding passengers.

According to another aspect of the present invention, there is provided a method of controlling a safety belt, comprising the steps of: determining a passenger in a control unit based on a boarding detection signal from a boarding sensing device; receiving a seat belt sensing signal from the seat belt sensing device, A third step of comparing the number of the seatbelt belts determined in the second step with the occupant determined in the first step, and a third step of comparing the number of the seatbelt belts in the third step, And a fourth step of limiting the operation of the basket operating part in the interlock part when the number of the seat belts is smaller than the number of the occupant in the interlock part.

Also, before the first step, the control unit may determine whether to board the vehicle by a boarding detection signal from the boarding sensing device. Therefore, the reliability of the control is improved.

If the operation command signal of the basket operation unit is generated after the fourth step, the alarm unit may generate an alarm.

According to the present invention, it is possible to appropriately detect the mounting of the operator and the attachment of the seat belt and to induce wearing of the seat belt.

Further, it is possible to restrict the control of the driving unit on the basket side or to allow the control of the driving unit on the basis of the judgment as to whether or not the occupant is on board and whether or not the seatbelt is mounted, thereby making it possible to efficiently manage the control system and force the seatbelt to be worn during operation.

Brief Description of the Drawings Fig.
2 is an enlarged perspective view of a basket portion in a high-performance work vehicle according to the prior art.
3 is a front view for explaining a high-performance work vehicle having a sensing device according to the concept of the present invention.
4 is a block diagram for explaining a boarding safety system of a high-altitude work vehicle according to the present invention.
5 is a block diagram for explaining a configuration of a control unit in a boarding safety system of a high-performance work vehicle according to the present invention.
6 is a flowchart showing a first embodiment of a boarding safety control method by a boarding safety system of a high-performance work vehicle of the present invention.
7 is a flowchart showing a second embodiment of a boarding safety control method by a boarding safety system of a high-performance work vehicle of the present invention.
8 is a flowchart showing a third embodiment of a boarding safety control method by a boarding safety system of a high-performance work vehicle of the present invention.
9 is a plan sectional view showing a first embodiment of a seat belt sensing apparatus for a high-performance work vehicle according to the present invention.
10 is a perspective view for explaining a second embodiment of the seat belt sensing apparatus of the present invention.
11 is a conceptual diagram for explaining a first embodiment of the boarding detection apparatus of the present invention.
FIG. 12 is a front cross-sectional view specifically showing a displacement sensing unit in the boarding sensing apparatus of FIG. 11; FIG.
13 is a schematic diagram for explaining a second embodiment of the boarding detection apparatus of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a boarding safety system for a high-performance work vehicle having an interlock according to the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything.

In the following description, when a part is referred to as being 'connected' to another part, it includes not only a direct connection but also a case where another part or device is connected in between. In addition, when a part is referred to as including an element, it is to be understood that the element may include other elements, not the exclusion of any other element, unless specifically stated otherwise.

The present invention can be configured to include a sensing device for generating a sensing signal for the mounting of the load and the seat belt, and an interlock for limiting the control signals of the basket operation part or the main operation part according to the sensing signal.

The 'parts' may be constituted by an algorithm as a part of an integrated control module provided in a high-performance work vehicle, or may be constituted by different modules in some cases.

In the description of the present invention, a high-performance work vehicle is described with respect to embodiments of a sensing device mounted on a basket having a travelable vehicle body and a telescopic boom and coupled to a tip of the vehicle body, But it should be understood that it includes a variety of equipment which can be operated by workers, such as a crane or a lifting device, at a height spaced from the ground.

3 is a front view for explaining a high-performance work vehicle having a seatbelt wearing device of a high-performance work vehicle according to the present invention.

The elevator work car 1000 is configured such that a plurality of booms 1130 are assembled to be pulled in and out of each other to support a predetermined load at one end side. The number and shape of the boom 1130 are not necessarily limited to those shown in the drawings.

A basket 1210 is coupled to one end of the boom 1130 to support a load of an operator and equipment and to be vertically rotatable while being supported by the base 1010 of the elevating work vehicle 1000 at the other end. The boom 1130 may be rotatable in the left-right direction with respect to the base 1010.

The boom 1130 can be pulled out of the vehicle by means of a power take-off (PTO) device, .

In addition, a plurality of outriggers 1020 may be disposed on the side of the elevator work vehicle 1000 to fix the work conditions, and such outrigger 1020 may also be operated through hydraulic pressure.

The base 1010 of the elevator car 1000 adjacent to the boom 1130 on the basis of the city condition may be provided with a main operating portion 1110 capable of operating the state of the boom 1130, 1110, the ground operator can directly manipulate the expansion, contraction, vertical rotation, and horizontal rotation of the boom 1130. In some cases, the main operation unit 1110 may operate remotely the equipment provided in the basket 1210 or the basket 1210.

The basket 1210 may be connected to the basket support 1230 on the side connected to the boom 1130 such that the basket 1210 can be rotated or raised and lowered. The basket operating portion 1220 can be disposed so as to operate equipment such as a vehicle or a boom.

The main operation unit 1110 and the basket operation unit 1220 send predetermined operation command signals to operation devices such as a stretching cylinder of a boom, a hydraulic motor of a boom, a motor of a winch, a turning motor of a basket, an outrigger, The control unit of the present invention determines whether the predetermined condition is satisfied before the operation of each device is performed by the operation command signal of the main operation unit 1110 and the basket operation unit 1220, So that the operation can be performed only. This will be described later.

Since the basket 1210 is operated at a high altitude, there is a high possibility that the basket 1210 is rocked due to the movement of the boom or the external environment, which is an unstable safety factor for the operator. There is a possibility of a safety accident when the seat belt 1300 is not correctly attached to the basket 1210 as described above.

The sensing device 2000 is installed in the basket 1210 to determine whether the occupant is on board the passenger and / or the passenger on the basis of the state of the seatbelt determiner 1520 on the basket 1210, To be performed.

The seat belt 1300 may be formed in various shapes and may be attached to a fastening part of the basket 1210 by being worn on the waist or upper body of the operator and extending for a predetermined distance.

4 is a block diagram for explaining a boarding safety system of a high-altitude work vehicle according to the present invention.

The boarding safety system according to the present invention receives a detection signal of the sensing device 2000 on the basket 1210 side to determine whether the occupant is on board and determines whether to install the seatbelt, And an interlock unit 1600 for restricting operation of the operation device by operation command signals of the main operation unit 1110 and / or the basket operation unit 1220. [

The control unit 1500 is preferably disposed on the main operation unit 1110 on which the control panel is disposed, but is not limited thereto.

The control unit 1500 receives the boarding detection signal and the seat belt sensing signal and determines whether to apply operation command signals of the main control unit 1110 and / or the basket control unit 1220. The board sensing signal and the safety A belt sensing signal may be generated by each seat sensing device and the seat belt sensing device. In the description of the present invention, it can be understood that the sensing device refers to the occupant sensing device and the seat belt sensing device, respectively. Control of the sensing device and the operation command signal will be described later.

The interlock unit 1600 may function to limit the operation of the main operation unit 1110 and / or the basket operation unit 1220 according to the determination of the controller 1500. In the first embodiment, the main operation unit 1110, And / or to limit the arrival of the operation command signal on the control line connected to each equipment from the main operation unit 1110 and / or the basket operation unit 1220 as the second embodiment, And the like. It goes without saying that the above embodiments may be combined and operated.

Since the control unit 1500 and the interlock unit 1600 are operated, the present invention is described mainly regarding restricting the operation of the basket operation unit 1220 by judging that there is a possibility of a safety accident of the passenger's seat belt and the seat belt, It is preferable that the interlock section 1600 allows the main operation section 1110 to perform a restriction on the operation command signal. That is, when the passenger is located at the high altitude, the operator on the ground can not confirm the state inside the basket 1210. Therefore, there is a risk of a safety accident if the boom is arbitrarily operated, and the interlock part 1600 is operated for the main operation part 1110 So that the restriction is performed.

5 is a block diagram for explaining a configuration of a control unit in a boarding safety system of a high-performance work vehicle according to the present invention.

The control unit 1500 includes a boarding determination unit 1510 and a seat belt determination unit 1520. The boarding determination unit 1510 receives a boarding detection signal from the boarding sensing apparatus and determines whether the boarding board is boarded do. Specifically, the determination of the boarding may include both boarding passengers and boarding passengers. For this purpose, it is necessary for the boarding detection device to simultaneously perform on-off determination of boarding and quantitative determination of boarding passengers, which can be measured in consideration of the load of the operator. Preferred embodiments in this regard will be described later.

However, in the case where the basket 1210 is limited to one-person boarding, determination and detection of the passengers may be omitted.

Also, the seatbelt determination unit 1520 functions after the determination of whether or not the seatbelt is carried out, and determines whether or not the seatbelt is mounted on the engagement portion (2110 in Fig. 8) provided on the basket 1210, It is possible to determine whether or not the seat belt is worn and / or the number of the seat belt.

6 is a flowchart showing a first embodiment of a boarding safety control method by a boarding safety system of a high-performance work vehicle of the present invention.

In the first embodiment of the boarding safety control method of the present invention, a control method in the case where a plurality of passengers can ride on the basket 1210 will be described.

The boarding detection apparatus generates a boarding detection signal, and the control unit 1500 receives the boarding detection signal, and the boarding determination unit 1510 determines whether or not the boarding card is loaded (S2100).

If it is determined that the worker is aboard, the boarding personnel may be judged (S2110), and the occupant detection may be performed by the boarding detection apparatus. For example, when a load value for a predetermined number of persons is detected, the boarding determination unit 1510 of the control unit 1500 may store boarding personnel information in a predetermined storage unit (not shown) in real time.

When the occupant is determined as described above, the seatbelt sensing device senses wearing of the seatbelt and transmits a seatbelt sensation signal, which is information on the number of seatbelt sensors. (S2120)

The information on the detected safety belts includes whether or not the safety belts are mounted and the number of the safety belts to be mounted. As will be described later, the seat belt sensing device may be individually provided in a predetermined locking part corresponding to the number of hooks Judgment is possible at a time.

If the number of the seatbelt belts is less than the number of passengers, the operation in the basket is restricted (S2400). In such a case, the interlock part 1600 controls the basket operation part 1220) (S2300).

At this time, it is possible to determine whether the operation is performed (S2500) even though the basket operation unit 1220 is limited, and can be performed by receiving the signal sensed from the operation command signal sensing unit (not shown). If this condition is satisfied, an alarm can be generated (S2510) as an optical, acoustic, or voice signal through the alarm unit 1700.

In addition, even if it is determined that the vehicle is not boarded in S2100, the operation of the basket operation unit 1220 may be limited (S2400).

The determination as to whether or not the occupant is boarding (S2100), determining the number of passengers (S2120), and determining the number of seatbelt attachments (S2200) is carried out in a feedback manner and repeatedly so as to monitor and store the attachments of the seatbelt and the passenger have.

Also in this case, when the operation of the basket operating portion 1220 is restricted by the interlocking portion 1600, the operation command of the main operating portion 1110 may also be restricted, and in some cases, The operation of the main operation portion 1110 can be permitted by the disabling setting of the operation portion 1600.

However, it may be considered that the interlock 1600 does not perform the limiting operation on the main operation unit.

The operation of the first embodiment as described above will be described as a specific application example.

Hereinafter, an example in which two persons are boarded on the basket will be described as an example, but these examples can be applied to a case where three or more persons are aboard.

When the boarding is confirmed and it is judged that one person is aboard, the operation of the basket operating portion is restricted when the number of the seatbelt attaching is zero. Accordingly, an alarm may be generated when a basket operation command signal is detected. At this time, when the number of the seatbelt attaching portions is 1, the operation of the basket operating portion is permitted and the operation on the basket side is possible.

When the number of the seatbelt is zero, the operation of the basket control unit is limited. If the number of the seatbelt is smaller than the number of the occupants, the operation is restricted do. Therefore, when the number of the seat belt fastening is two, the operation of the basket operating portion can be permitted.

In the first embodiment of the present invention, the operation signal of the basket is intermittently interlocked when the boarding passengers are not boarded or the boarding passengers are 0 on board. However, in some cases, there may be a case where the operation of the basket operating portion is required although there is no on-board passengers.

In the second embodiment of the present invention, another control method for solving this problem is presented.

A description common to the first embodiment will be omitted.

(Step S2110), and the detection of the occupant may be performed by the occupant detection apparatus.

When the occupant is determined as described above, the seatbelt sensing device senses wearing of the seatbelt and transmits a seatbelt sensation signal, which is information on the number of seatbelt sensors. (S2120)

The information on the detected seat belt is information on the number of the seat belt mounted.

If the number of the seatbelt is less than the number of occupants, the operation in the basket is restricted (S2400). If the number of the seatbelt is equal to or greater than the occupant, The operation of the basket operating portion 1220 is permitted in S200 (S2300).

The case where the number of the passengers is the same as that of the first embodiment is the same as the case of the first embodiment, and the case where the number of the attachments is larger may be, for example, the case where the seatbelt is not mounted but the seatbelt is attached.

For example, there is a need to operate the basket operating part for the purpose of testing or operation after the boom is lowered and the basket is placed in close proximity to or close to the ground, at which time it is unnecessary to board the basket. In this case, however, in order to reduce the probability of malfunction in consideration of certainty, it is possible to apply an operation signal of the basket operating section only when one or more seat belts are attached even when 0 persons are boarded will be.

That is, in the second embodiment of the present invention, it is noted that there is a difference in that the determination of the number of the seat belt mounting portions is performed more heavily in the judgment of the seat belt than the wearing number.

8 is a flowchart showing a third embodiment of a boarding safety control method by a boarding safety system of a high-performance work vehicle of the present invention.

In the third embodiment of the control method, a case where one person can be carried on the basket 1210 is shown. In this case, the controller 1500 does not need to judge the number of passengers and determine the number of seat belt attachments. Therefore, the boarding determination unit 1510 can be omitted, which means that it is possible to simplify the algorithm or decision element.

The seatbelt determination unit 1520 determines whether the seatbelt is worn and attached (S1200).

When it is determined that the seat belt is attached, the interlock part 1600 allows the operation on the basket operation part 1220 (S1300).

On the other hand, when it is determined that the boarding condition is satisfied but the seat belt is not attached, the operation of the basket operation unit 1220 is limited by the interlock unit 1600 (S1400).

At this time, it is determined whether or not the operation is performed even though the basket operation unit 1220 is limited (S1500), which may be performed by receiving the operation command signal sensed from the operation command signal sensing unit (not shown). When this condition is satisfied, an alarm can be generated (S1510) as an optical, acoustic, or voice signal through the alarm unit 1700.

Also, the operation of the basket operation unit 1220 may be restricted so as to prevent an unauthorized operation command signal from being transmitted even in the case of not being boarded in S1100.

In the above embodiments, it is possible to monitor and store the mounting of the seatbelt and the occupant during the continuous operation by performing the judgment as to whether or not the occupant is on the seatbelt, the determination of the mounting of the seatbelt, or the comparison of the number.

When the operation of the basket operating portion 1220 is restricted by the interlocking portion 1600, it is preferable that transmission of the operation command of the main operating portion 1110 is also restricted, and in some cases, the interlocking portion 1600 ) Operation of the main operating portion 1110 may be permitted by the deactivation setting.

Hereinafter, specific embodiments of the sensing device 2000 will be described.

9 is a plan sectional view showing a first embodiment of a seat belt sensing apparatus for a high-performance work vehicle according to the present invention.

The hook 1310 may have a hinge cover which can be opened at one side and inserted into the hook-shaped hook 2110 through the opening portion and can be closed after the hook is hooked, and is not necessarily limited to the illustrated example .

The latching part 2110 may be fixedly coupled to the inside of the basket 1210 or the outer wall, and may have a closed outer shape. Thus, the hook 1310 can be hooked up and down with respect to the illustrated state.

The push portion 2120 is connected to the push rod 2150 extending to the rear side so that the forward and backward movement can be transmitted to the push rod 2120. The push rod 2120 is connected to the push rod 2150, (2150).

In the drawing, a predetermined through hole (not shown) is formed with respect to the wall of the basket 1210, and the push rod 2150 is moved in the forward and backward directions according to the movement of the push portion 2120 through the through hole. However, this wall does not necessarily mean the wall of the basket 1210 itself, but may be a bracket of a certain panel or an additional device coupled thereto.

Preferably, the push portion 2120 can be brought into close contact with the latching portion 2110 in a state where the hook is not engaged, and the push portion 2120 is moved backward by the thickness in the forward and backward direction in the hooked state. In addition, when the hook is detached, a restoring part 2140 for providing an elastic restoring force to move forward can be connected.

It is preferable that the front end of the push portion 2120 is provided with an arc-shaped recess 2121 on the front end side so as to form a predetermined insertion space when the hook is attached, The left and right sides are in close contact with the inner circumferential side of the engaging portion 2110 and form a predetermined space at the center side.

The restoring unit 2140 may include a coil spring disposed to surround the outer periphery of the push rod 2150. However, the present invention is not limited thereto.

The push rod 2150 may have a stepped portion (not shown) to compress the restoring portion 2140 to the rear side in accordance with the movement of the push portion 2120, have.

In addition, the casing 2130 may be disposed on the rear side of the wall so as to cover the restoration portion 2140 from the outer circumference side and to fix and support the rear side. Accordingly, the casing 2130 fixes and supports the restoring portion 2140 in the inner space and allows the restoring portion 2140 to repeat the compression and restoration precisely in accordance with the movement of the push rod 2150, which is disposed in the forward and backward directions.

The push rod 2150 may include a protruding portion 2151 protruding toward the outer circumference and a sensing portion 2161 capable of sensing the movement of the protruding portion 2151 may be fixedly disposed adjacent thereto have.

More specifically, the protrusion 2151 has a larger radius than the push rod 2150, and the switching portion 2160 is disposed on the outer surface of the push rod 2150 and in the left-right direction along the outer surface of the protrusion 2151 And a sensing unit 2161 capable of sensing a moving state of a portion extending to one side of the follower unit 2162. As shown in FIG.

As shown in the figure, the follower 2162 preferably has a ring or roller-shaped follower at its end so as to follow the outer surface of the protrusion 2151 having a three-dimensional shape, and the follower is rotatably coupled to the rod .

The elevated portion 2151 preferably has an inclined surface connected to the outer surface of the push rod 2150 in a progressively smaller diameter toward the front and rear in a portion having the largest diameter for the smooth operation of the follower portion 2162.

10 is a perspective view for explaining a second embodiment of the seat belt sensing apparatus of the present invention.

In the second embodiment of the seat belt sensing apparatus, a further concept of non-contact sensing of the attachment state of the hook 1310 to the engagement portion 2110 is presented.

The sensing unit 2200 may include a bracket 2210 connected to the basket 1210 to support the rod-shaped latching unit 2110, And a photosensor 2220 that detects the hooking state of the hook 1310 on both sides of the bracket 2210.

It will be appreciated that the catching portion 2110 is formed on the outer surface of the basket 1210 in the illustrated state, but may be disposed on the inner surface of the basket 1210 as the case may be.

When the latching part 2110 is disposed in the lateral direction, the hook 1310 is hooked in the vertical direction or the back and forth direction. The hook 1310 shields the light path and detects the mounting state of the photosensor 2220 .

The photosensor 2220 may include a light generating unit disposed on one side of the bracket 2210 and a light sensing unit disposed on the other side of the bracket 2210. The light may include visible light, infrared light, or various types of light.

In this case, the cover portion 2201 is further disposed so as to protect the attaching portion of the latching portion 2110 and the hook 1310 and the photosensor 2220 to some extent from the outside so as to prevent inflow of external objects or optical interference .

The cover 2201 may be coupled to the bracket 2210 to be rotatable in the left-right direction.

11 is a conceptual diagram for explaining a first embodiment of the boarding detection apparatus of the present invention.

A basket supporting portion 1230 is coupled to the front end of the boom 1130 and a basket supporting portion 1230 is connected to the basket 1210.

The basket 1210 and the basket support part 1230 may be coupled by a hinge part 2401 and the displacement sensing part 2400 may be disposed below the hinge part 2401.

The hinge portion 2401 substantially functions to connect the basket supporting portion 1230 and the basket 1210, and when the eccentric load is generated by the passenger of the basket, a moment for counterclockwise rotation is generated in the city state. Accordingly, the lower side of the basket 1210 is more closely attached to the basket supporting part 1230 side, and the displacement sensing part 2400 can sense the linear displacement to measure the load.

As a general load measuring method, a load in the vertical direction is sensed by using a predetermined cylinder or a compression means. However, in the case of the basket 1210, there is a difficulty in arranging such a sensing means, and in order to simplify the structure, The measurement structure is appropriate.

A predetermined displacement distance may be generated between one side of the basket 1210 and the other side of the basket supporting part 1230 under the hinge part 2401 for the application of the above concept and a predetermined spaced space may be considered . At this time, when the load is released, a predetermined elastic member may be disposed for restoring the original state, which will be described later.

Meanwhile, a case where an elastic deformable material such as a predetermined buffer mat is interposed between the basket 1210 and the basket supporting portion 1230 may be considered. In this case, there is an advantage in that it is possible to firmly support the basket 1210 and the basket 1230, .

In the present invention, a concept of securing a predetermined movable distance and measuring a displacement in a spaced space will be described.

12 is a front cross-sectional view showing the displacement sensing unit in the boarding sensing apparatus of FIG.

The displacement sensing unit 2400 includes a first sensing unit 2420 and a second sensing unit 2410 protruding from one side of the basket 1210 and arranged on the upper and lower sides of the basket 1210, The first push rod 2422 and the second push rod 2422 protruding toward the other side in correspondence with the positions of the first sensing unit 2420 and the second sensing unit 2410 and capable of following the first sensing unit 2420 and the second sensing unit 2410, And a basket side load (2412) disposed between the first push rod (2422) and the second push rod (2412) and protruding to the other side of the basket supporting portion (1230) 2431).

The positions of the first sensing unit 2420 and the second sensing unit 2410 and the positions of the first push rod 2422 and the second push rod 2412 are inverted, that is, the first sensing unit 2420, And the second sensing portion 2410 are disposed on the basket supporting portion 1230 side and the first push rod 2422 and the second push rod 2412 are disposed on the basket 1210 side, As described above, the embodiment shown may be more preferable in view of the operability of the adjustment section for the adjustment of the initial state.

Specifically, the first sensing unit 2420 and the second sensing unit 2410 are connected to a switch (not shown) for generating a load sensing signal, to the other side of the first push rod 2422 and the second push rod 2412 And a first displacement portion 2421 and a second displacement portion 2411 that are deformed or movable with respect to the switch when a displacement is generated.

The first displaceable portion 2421 and the second displaceable portion 2411 protrude from one side of the basket 1210 so that the distal end of the first displaceable portion 2421 and the second displaceable portion 2411 can move in contact with the distal end of the push rod in the displacement space, But it is not limited thereto.

The first push rod 2422 and the second push rod 2412 are protruded to the other side of the basket supporting part 1230 and have a first adjusting part 2423 and a second adjusting part 2413 so as to adjust the degree of protrusion from one side . These adjusters are in the form of a nut having a threaded groove and two nuts can be coupled to each other for fixing the position. A thread may be formed at a portion of the push rod in which the adjustment portion is disposed.

The vertical spacing of the first push rod 2422 and the second push rod 2412 can be appropriately selected in consideration of a displacement difference to be described later.

A basket side rod 2431 for supporting displacement according to a load may be disposed between the first push rod 2422 and the second push rod 2412, And may protrude from the basket supporting portion 1230 to the other side as in the case of the rod.

It should be noted that the push rod is fixedly disposed with respect to the basket supporting portion 1230, but the basket side rod 2431 is disposed movably to both sides.

The basket side rod 2431 functions to maintain a spaced distance between the basket supporting portion 1230 and the basket 1210 in an initial state, that is, in a state in which no load is placed, and to provide a restoring force when a displacement occurs. The elastic supporter 2433 may be coupled to the basket support portion 1230. [

The elastic supporter 2433 is disposed in the form of a coil spring that surrounds the outer periphery of the basket side rod 2431 and is provided with a compressive force in a state of being hooked on a stepped portion (not shown) on the other side of the basket side rod 2431, And the restoring force can be provided to the basket side rod 2431 again.

To this end, a support casing 2432 for restricting the movement of the stepped portion of the basket side rod 2431 from the other side and supporting one end of the elastic support member 2433 on one side may be arranged to surround the elastic support member 2433.

The hinge portion 2401 is disposed on the basket supporting portion 1230 and the basket 1210 so that the hinging portion 2401 can be pivotally moved due to the influence of a moment that rotates counterclockwise when the operator is riding. The displacement of the first sensing portion 2420 may be larger than the displacement of the second sensing portion 2410. The displacement of the first sensing portion 2420 may be larger than that of the second sensing portion 2410. [

The first sensing unit 2420 and the second sensing unit 2410 may be formed of a predetermined ON / OFF switch. When a displacement greater than the predetermined value is generated, the sensing unit 2420 may intermittently supply power to generate a sensing signal. The first sensing unit 2420 disposed on the lower side is operated before the second sensing unit 2410.

When the worker 1 is aboard a predetermined hinge portion 2401 while the initial load, i.e., the displacement space of the basket 1210 and the basket supporting portion 1230 in the state where the worker is not positioned is maintained by the basket side rod 2431, And the first sensing unit 2420 is operated according to the displacement of the lower side of the basket 1210 to generate the first sensing signal.

At this time, the second sensing unit 2410 does not generate a sensing signal, and the controller can determine that one person has boarded.

Here, if one more person is aboard, the displacement at the second sensing unit 2410 becomes larger, and accordingly, the second sensing unit 2410 generates the second sensing signal so that the control unit can determine that two persons are aboard.

Generally, the distance of the displacement space and the restoring force of the basket side rod 2431 can be adjusted in consideration of the fact that the adult load is about 60 kg to 100 kg. Here, the displacement space may refer to the entire space separated from the lower side of the hinge part 2401, but narrowly refers to a part where the second sensing part 2410 and the first sensing part 2420 are disposed to sense the displacement It will be more accurate to understand that.

Accordingly, it can be understood that the first sensing unit 2420 generates a boarding detection signal for detecting whether an operator is boarding the vehicle, and the second sensing unit 2410 performs a function for generating a boarding seat sensing signal You can.

It is needless to say that the number of the sensing units may be additionally arranged so as to detect when the number of passengers is three or more.

13 is a schematic diagram for explaining a second embodiment of the boarding detection apparatus of the present invention.

The basket 1210 may be movable up and down with respect to the basket support 1230 and may be preferably disposed in an elevated cylinder 1240 for finer working than when the height is deformed along with the length in a tilting manner.

Accordingly, the basket 1210 can be moved up and down by the lifting cylinder 1240 relative to the basket supporting portion 1230, and the concept of the lifting cylinder 1240 can be applied to the embodiment of the present invention .

The load sensing unit 2310 may be coupled to the side where the lifting cylinder 1240 is disposed and the load sensing unit 2310 may be coupled to the lower side of the lifting cylinder 1240 to eliminate the influence of the lifting and lowering . It is needless to say that the load sensing unit 2310 may be formed such that the elevating cylinder 1240 can be operated by the hydraulic pressure, and in some cases, directly measure the pressure or the displacement due to the ascending and descending of the elevating cylinder 1240.

When the load in the initial state is determined, the weight measurement value of the load sensing unit 2310 is sent to the control unit as a load sensing signal, and the weight can be directly measured to determine whether or not the vehicle is on board and the passenger.

Some or all of the second embodiment of the present invention may be additionally combined with the above embodiments.

According to the boarding safety system and control method of a high-performance work vehicle having the above-described interlock according to the present invention, it is possible to appropriately detect the mounting of the operator and the attachment of the seat belt and to induce the seat belt to be worn, .

In addition, it is possible to restrict the control of the driving unit on the basket side or to allow the control of the driving unit on the basis of the judgment as to whether or not the occupant is on board and whether or not the seatbelt is mounted, thereby making it possible to effectively manage the control system and to force the seatbelt to be worn during work.

In the foregoing, the present invention has been described in detail based on the embodiments and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the content of the following claims.

1000 ... High work car 1010 ... Base
1020 ... outrigger 1110 ... main control unit
1120 ... cylinder 1130 ... boom
1210 ... basket 1220 ... basket operating portion
1230 ... basket support 1300 ... seat belt
1310 ... hook 1500 ... control unit
1510 ... boarding judging unit 1520 ... seat belt judging unit
1600 ... Interlock section 1700 ... Alarm section
2000 ... sensing device 2110 ... engaging portion
2120 ... push portion 2121 ... recessed portion
2130 ... casing 2140 ... restoring portion
2150 ... push rod 2151 ... ridge
2160 ... switching part 2161 ... sensing part
2162 ... tracking unit 2200 ... sensing unit
2201 ... Cover part 2210 ... Bracket
2220 ... Photo sensor part 2400 ... Displacement sensing part
2401 ... Hinge part 2420 ... First sensing part
2421 ... first displaceable portion 2422 ... first push rod
2423 ... first adjustment section 2410 ... second sensing section
2411 ... second displaceable portion 2412 ... second push rod
2413 ... second adjustment portion 2431 ... basket side load
2432 ... supporting casing 2433 ... elastic supporting member

Claims (8)

In a high-performance work vehicle including a basket and a boom,
A boarding detection device for sensing a boarding of an operator to a basket and generating a boarding detection signal;
A seat belt sensing device for sensing a mounting of the seat belt in the basket and generating a seat belt sensing signal;
A boarding determination unit for determining a boarding personnel of a worker from a boarding load by receiving a boarding detection signal, and a seat belt determination unit for receiving a seat belt sensing signal to determine a safety belt installation of an operator, A control unit for generating an operation restriction command when the number of the installed safety belts is small; And
And an interlocking unit for turning on / off the power inputted to the basket operating unit provided in the basket according to the operation limiting command or restricting the arrival of the operation command signal to each equipment on the control line from the basket operating unit,
Wherein,
Wherein when the number of passengers is zero in the boarding judging unit, the operation of the basket operating unit is permitted if the number of the seatbelt judging unit is one or more.
delete delete The method according to claim 1,
And an alarm unit for generating an alarm when an operation command signal of the basket operation unit is generated under the condition that the operation restriction instruction is generated in the control unit.
The method according to claim 1,
The boarding determination unit
After making a decision on whether or not to board,
Wherein the seatbelt determining unit determines,
A boarding safety system of a high altitude work vehicle that performs a determination of the number of seatbelt attachments after a determination of the number of passengers.
Determining whether a boarding pass is determined by a control unit based on a boarding detection signal from the boarding sensing apparatus;
A first step of performing a judgment on a passenger of a worker from a boarding load in a control unit by a boarding detection signal from a boarding detection apparatus;
A second step of receiving a seat belt sensing signal from the seat belt sensing device and performing a determination on the number of seat belt mounting in the control part;
A third step of comparing the number of occupants determined in the first step with the number of seatbelt attachments determined in the second step; And
If the number of seatbelt attachments is smaller than the number of passengers in the third step, the interlock unit turns off the power input to the basket operation unit provided on the basket or restricts the arrival of the operation command signal to each equipment on the control line from the basket operation unit And a fourth step of allowing the seatbelt to be mounted when the number of the seatbelt is equal to or greater than the occupant,
In the fourth step,
And when the number of passengers is zero in the boarding judging unit, the operation of the basket operating unit is permitted if the number of the seatbelt judging unit is 1 or more.
delete The method according to claim 6,
After the fourth step,
And generating an alarm from an alarm unit when an operation command signal of the basket operation unit is generated.
KR1020160006797A 2016-01-20 2016-01-20 Safety system for basket riding person of aerial lift vehicle having interlock and controlling method of the same KR101643906B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102224284B1 (en) * 2020-12-18 2021-03-08 주식회사 대양계기 Safety assistant device for tower wagon
KR102512639B1 (en) * 2022-09-27 2023-03-22 주식회사 해울이엔지 support frame for solar panel
KR20240112655A (en) 2023-01-12 2024-07-19 한국전력공사 Automatic leveling system for high place operation car

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JPH11100198A (en) * 1997-09-29 1999-04-13 Aichi Corp Safety device of vehicle for work on eminence
JPH11322296A (en) * 1998-05-13 1999-11-24 Yurtec Corp Safety device for high lift work vehicle
JP2001240395A (en) * 2000-02-29 2001-09-04 Aichi Corp Safety device for working vehicle
JP2006021897A (en) * 2004-07-09 2006-01-26 Aichi Corp Safety device for high lift operating vehicle

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JPH11100198A (en) * 1997-09-29 1999-04-13 Aichi Corp Safety device of vehicle for work on eminence
JPH11322296A (en) * 1998-05-13 1999-11-24 Yurtec Corp Safety device for high lift work vehicle
JP2001240395A (en) * 2000-02-29 2001-09-04 Aichi Corp Safety device for working vehicle
JP2006021897A (en) * 2004-07-09 2006-01-26 Aichi Corp Safety device for high lift operating vehicle

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Publication number Priority date Publication date Assignee Title
KR102224284B1 (en) * 2020-12-18 2021-03-08 주식회사 대양계기 Safety assistant device for tower wagon
KR102512639B1 (en) * 2022-09-27 2023-03-22 주식회사 해울이엔지 support frame for solar panel
KR20240112655A (en) 2023-01-12 2024-07-19 한국전력공사 Automatic leveling system for high place operation car

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