Foot brake-outrigger safety control method using interlock based on outrigger selection coil power control

Abstract

The present invention relates to a foot brake and outrigger safety device for a vehicle, and more specifically, to a device and method that prevents the vehicle from slipping on a downhill slope and ensures the safety of the vehicle and the worker by physically enabling the worker to operate the outrigger only when the worker is in the driver's seat through the linked control of the foot brake and the outrigger.

Description

Technology Field

[0001] The present invention relates to a foot brake and outrigger safety device for a vehicle, and more specifically, to a device and method that prevents the vehicle from slipping on a downhill slope and ensures the safety of the vehicle and the worker by physically enabling the worker to operate the outrigger only when the worker is in the driver's seat through the linked control of the foot brake and the outrigger. Background Technology

[0002] Generally, a special work vehicle equipped with an insulated boom, outriggers, and a bucket capable of performing high-altitude electrical work on a 3.5-ton truck utilizes a method in which the jacks of the outriggers are extended to level the work vehicle, and the insulated boom is extended so that a worker can climb onto the bucket to perform the work.

[0003] The method for installing and removing outriggers for the work is as follows.

[0004] (1) The outrigger must be operated after checking for people or obstacles at the landing point, and the outrigger must remain fixed until the boom returns to its original position.

[0005] (2) When working on a slope, first place a chock under the vehicle's wheels, lower the lower outrigger first to level the vehicle, then lower the higher outrigger to install it, and when removing the outrigger, the driver must get into the vehicle and press the brake, and then remove it in the reverse order of installation.

[0006] (3) When the ground is uneven or on soft ground, you must use a support beam.

[0007] As explained above, conventional special work vehicles are designed so that when removing outriggers, the driver boards the vehicle, applies the vehicle brake, and then uses the outrigger control device to remove the outrigger jack.

[0008] However, there was a problem where workers and drivers could operate the outriggers without being inside the vehicle.

[0009] In other words, if a worker operates the outriggers without being on board the vehicle, the vehicle will slide, which can cause safety accidents.

[0010] To examine the specific problems, first, when the outriggers are operated without a driver on board the vehicle, the vehicle moves off the ground, and when slipping occurs, the work vehicle rolls down an incline because there is no one controlling the vehicle's operation.

[0011] Due to the heavy weight of the work vehicle, rolling leads to safety accidents for surrounding workers, which can result in serious accidents.

[0012] In addition, when work vehicles are backed up, the absence of a driver can lead to vehicle collisions, resulting in property damage.

[0013] In particular, due to the structure of the work vehicle, the control device for operating the outriggers is located at the rear of the vehicle, so when the vehicle slips, a crushing accident occurs in which the worker operating the outriggers is pinned under the vehicle, which leads to a serious accident for the worker. Prior art literature

[0014] Korean Patent Publication KR 10-0899274 B1 (2009.05.18) The problem to be solved

[0015] The present invention was devised to improve the aforementioned problems, and the purpose of the present invention is to provide a foot brake-outrigger safety device utilizing an interlock that protects the safety of the operator by controlling the outrigger through a brake signal by issuing commands to select operation and prohibit operation of the outrigger connected to the vehicle main controller. means of solving the problem

[0016] To achieve the above objective, according to one embodiment of the present invention, the method comprises: a step in which a main controller detects a brake input signal through a relay for an automobile; a step in which, if the main controller does not detect the brake input signal, the operation signal of the outrigger is blocked to prevent the outrigger from being operated; and a step in which, if the main controller detects the brake input signal, the operation signal of the outrigger is transmitted to enable the outrigger to be operated.

[0017] The step of the main controller detecting a brake input signal through a vehicle relay is a step in which, when the vehicle relay detects a brake input signal from a lamp controller of a vehicle controlling a brake light, the normal contact terminal of the vehicle relay switches to a normal non-contact terminal.

[0018] The step of controlling the outrigger so that it cannot be operated is a step in which, if the brake input signal is not detected, the main controller of the vehicle relay cuts off the power to the outrigger selection coil; and the step of controlling the outrigger so that it can be operated is a step in which, by the switching operation of the vehicle relay, the main controller supplies power to the outrigger selection coil so that the outrigger can be operated through a 4-way control valve.

[0019] The above outrigger selection coil and 4-way control valve are controlled by the insulated aerial work vehicle controller.

[0020] The present invention comprises: a lamp controller for a vehicle that controls the on or off of a brake light based on a brake input signal; a vehicle relay in which, upon detecting a brake input signal between the vehicle lamp controller and the brake light, the normal contact terminal of the vehicle relay switches to a normal non-contact terminal; and a main controller that, if the vehicle relay does not detect the brake input signal, controls the outrigger operation signal by blocking it from the insulated high-altitude work vehicle controller so that the outrigger cannot be operated, or controls the outrigger to be operated if the vehicle relay detects the brake input signal.

[0021] The main controller comprises: an outrigger selection coil that is energized by the switching operation of the vehicle relay; a 4-way control valve including an operating valve to operate the outrigger by the energization of the outrigger selection coil; and an insulated aerial work vehicle controller that controls the outrigger selection coil and the 4-way control valve. Effects of the invention

[0022] The present invention aims to improve the working environment by protecting the safety of workers and securing a working radius around the vehicle through secondary vehicle movement by physically controlling the prevention of vehicle slippage on flat ground and slopes when performing work after parking a special work vehicle.

[0023] In addition, since the outrigger operates only when the brake is pressed for a certain period of time while the vehicle is stopped, the present invention enables safe control of the work vehicle while the operator is on board, thereby allowing for preemptive response to damage to the vehicle caused by slipping.

[0024] In addition, the present invention can ensure the safety of the upper worker during operation by preventing the operation of the outrigger by the brake signal of the upper worker during work in a moving environment of the insulated boom after horizontal adjustment of the outrigger.

[0025] For example, since all operations are possible after the leveling and safety of the work vehicle are secured, the working environment conditions are set up so that at least two people can work to ensure safety, with the operator performing the roles of a main worker and an assistant worker.

[0026] In addition, the present invention is applicable to all aerial work vehicles that use a foot brake, by preventing the outrigger from being operated when the driver of the work vehicle operates the outrigger control unit without pressing the foot brake.

[0027] In addition, the present invention can prevent the operation of the outriggers or the alarm buzzer from sounding if the driver of the work vehicle is not on board and pressing the foot brake. Brief explanation of the drawing

[0028] FIG. 1 is a drawing showing a special vehicle including a conventional outrigger and a special work vehicle equipped with a special purpose. FIG. 2 is a drawing showing a genuine vehicle rear combination lamp, an insulated vehicle controller, and a valve system according to the prior art. FIG. 3 is a block diagram schematically showing the transmission relationship of input signals and control signals between components implementing a foot brake-outrigger safety device utilizing an interlock according to an embodiment of the present invention. FIG. 4 is a detailed configuration diagram of a foot brake-outrigger safety device utilizing an interlock according to an embodiment of the present invention. Specific details for implementing the invention

[0029] The present invention as described above will be explained in detail through the attached drawings and embodiments.

[0030] It should be noted that the technical terms used in this invention are used merely to describe specific embodiments and are not intended to limit the invention. Furthermore, unless specifically defined otherwise in this invention, the technical terms used in this invention should be interpreted in the sense generally understood by those skilled in the art to which this invention pertains, and should not be interpreted in an overly broad or overly narrow sense. Additionally, if a technical term used in this invention is an incorrect technical term that fails to accurately express the concept of the invention, it should be replaced with a technical term that can be correctly understood by those skilled in the art. Moreover, general terms used in this invention should be interpreted according to their prior definitions or the context, and should not be interpreted in an overly narrow sense.

[0031] Furthermore, singular expressions used in the present invention include plural expressions unless the context clearly indicates otherwise. In the present invention, terms such as "composed of" or "comprising" should not be interpreted as necessarily including all of the various components or steps described in the invention, and should be interpreted as meaning that some of the components or steps may not be included, or that additional components or steps may be included.

[0032] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Identical or similar components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted.

[0033] Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such descriptions could obscure the essence of the invention. Additionally, it should be noted that the attached drawings are intended only to facilitate an understanding of the concept of the present invention and should not be interpreted as limiting the concept of the present invention.

[0035] As illustrated in FIG. 3, the present invention includes a lamp controller (12) of a vehicle that controls the on or off of a brake light (11) by a brake input signal included in a rear combination lamp, and a main controller (30) that controls operation prohibition by blocking the operation signal of an outrigger (O / R) (C2) so that the outrigger cannot be operated when the vehicle relay does not detect the brake input signal (N), or selects and confirms operation to control operation of the outrigger (O / R) when the vehicle relay detects the brake input signal (Y).

[0036] Additionally, as illustrated in FIG. 4, the present invention further includes a vehicle relay (20) in which, when a brake input signal that is not conventionally present is detected, the normal contact terminal (NC) of the vehicle relay (20) switches to a normal non-contact terminal (NO).

[0037] Through this automotive relay (20), the main controller (30) detects a brake input signal, and if the main controller (30) does not detect the brake input signal (NO), the operation signal of the outrigger (O / R) is blocked by the insulated aerial work vehicle control device (31) so that the outrigger cannot be operated, or if the main controller (30) detects the brake input signal (YES), the operation signal is transmitted to the insulated aerial work vehicle controller so that the outrigger (O / R) can be operated.

[0038] If the above main controller (30) does not detect the brake input signal (NO), the operation signal of the outrigger (O / R) is blocked by the insulated high-altitude work vehicle controller so that the outrigger cannot be operated.

[0039] This is because the main controller (30) detects a brake input signal generated when the brake is applied for a certain period of time while the vehicle is stopped, and failing to detect the brake input signal means that the brake is not applied for a certain period of time while the vehicle is stopped, and the outrigger operates abnormally, which may cause a risk of damage to the vehicle due to the work vehicle slipping while the worker is unable to board the vehicle.

[0040] Accordingly, when the main controller (30) detects a brake input signal (YES), it transmits an operation signal to the insulated high-altitude work vehicle controller to enable the operation of the outrigger (O / R), thereby controlling the operation of the outrigger so that the outrigger can be operated only when the driver is on board the vehicle.

[0041] In other words, since the worker can safely control the work vehicle while on board, it is possible to proactively respond to damage to the vehicle caused by slipping.

[0042] In addition, the present invention can prevent the operation of the outriggers or the alarm buzzer from sounding if the driver of the work vehicle is not on board and pressing the foot brake.

[0043] As shown in Fig. 3, the interlock method of a general outrigger can be applied in various ways, and the method of controlling through the vehicle's lamp controller that controls the brake light (11) is as shown in Fig. 4.

[0044] The main controller (30) includes an outrigger selection coil (32) that is energized by the switching operation of the vehicle relay, a 4-way control valve (33) that includes an operating valve to operate the outrigger by the energization of the outrigger selection coil, and an insulated aerial work vehicle controller (31) that controls the outrigger selection coil and the 4-way control valve.

[0045] The above main controller (30) detecting a brake input signal through the vehicle relay (20) can be applied such that when the vehicle relay (20) detects a brake input signal from the lamp controller of the vehicle controlling the brake light (11), the normal contact terminal (NC) of the vehicle relay (20) switches to a normal non-contact terminal (NO).

[0046] And, at this time, the outrigger selection coil (32) and the 4-way control valve (4-way control valve; 33) are controlled by the insulated aerial work vehicle controller (31).

[0047] However, if the above brake input signal is not detected, the main controller (30) of the vehicle relay (20) cuts off the power to the outrigger selection coil (32), or the main controller (30) supplies power to the outrigger selection coil (32) through the switching operation of the vehicle relay (20) so that the outrigger can be operated through the 4-way control valve. This is one of the various configurations that can be applied and is not limited thereto.

[0048] For example, the present invention is applicable to all aerial work vehicles that use a foot brake, by preventing the outrigger from being operated when the driver of the work vehicle operates the outrigger control unit without pressing the foot brake.

[0049] Specifically, looking at FIG. 4, the automotive relay (20) switches the normal contact terminal (NC) and the normal non-contact terminal (NO) around the common terminal (COM) by the internal coil of the outrigger selection coil (32) according to the brake input signal.

[0050] When switched by the above relay coil, the outrigger selection coil (32) connected to the insulated high-altitude work vehicle controller operates to enable the operation of the outrigger.

[0051] The above-mentioned automotive relay (20) has a detection line (L1) installed between the vehicle's lamp controller and the insulated high-altitude work vehicle controller to transmit or block the brake light (11) connection signal.

[0052] When the automotive relay (20) receives the connection signal of the above brake light (11) and transmits it to the insulated aerial work vehicle controller, the insulated aerial work vehicle controller generates an operation signal that allows it to operate the outrigger.

[0053] The above-mentioned automotive relay (20) includes a NO terminal that is normally unconnected (open) and is switched by a relay coil according to a brake input signal; and an NC terminal that is normally connected (closed) and is switched by a relay coil according to a brake input signal. When a brake input signal is detected, the brake light (11) of the rear combination lamp is turned ON, and a detection line (L1) is extended to the connection line between the vehicle lamp controller (12) and the brake light (11). When a brake input signal is detected by the vehicle lamp controller controlling the brake light (11), the normal contact terminal (NC) of the automotive relay (20) is switched to a normal non-contact terminal (NO), and the insulated high-altitude work vehicle controller (31) connected to the control line (L2) conducts the outrigger selection coil (32) and transmits an operation signal to the 4-way control valve (33).

[0054] Therefore, the above 4-way control valve (33) can prevent safety accidents by preventing the hydraulic pressure of the valve from operating and thus preventing the outrigger from operating when the driver of the work vehicle operates the outrigger without pressing the foot brake. Explanation of the symbols

[0055] 11 : Brake light 12: Vehicle lamp controller 20 : Automotive relay 30: Main Controller 31: Insulated aerial work vehicle control unit 32: Outrigger selection coil 33 : 4-way control valve NC: Normal contact terminal NO : Normal non-contact terminal COM : Common terminal L1 : Detector line L2 : Control line

Claims

Claim 1 The method includes a step in which a main controller detects a brake input signal through an automotive relay; a step in which, if the main controller does not detect the brake input signal (NO), the operation signal of an outrigger (O / R) is blocked to control the outrigger so that it cannot be operated; wherein a 4-way control valve comprising an outrigger selection coil energized by the switching operation of the automotive relay and an operation valve capable of operating the outrigger by the energization of the outrigger selection coil is controlled by an insulated aerial work vehicle controller, and further includes a step in which, if the main controller detects the brake input signal (YES), the operation signal of an outrigger (O / R) is transmitted to enable the operation of the outrigger; wherein the step of controlling the outrigger so that it cannot be operated includes a step in which, if the brake input signal is not detected, the main controller of the automotive relay cuts off the power to the outrigger selection coil; and the step of enabling the operation of the outrigger includes, by the switching operation of the automotive relay, the main controller energizes the power to the outrigger selection coil, and A foot brake-outrigger safety control method utilizing an outrigger selection coil power control-based interlock, characterized by including the step of enabling the outrigger to be operated through a 4-way control valve.

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