JP2017024470A - Anti-theft security system for road/track working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-theft security system for a road/track working vehicle that can prevent an anti-theft function from being set by mistake while the road/track working vehicle is being operated in tracks.SOLUTION: There is provided an anti-theft security system S for a road/track working vehicle that includes tires 12 for road travel and iron wheels 13 for track travel. The anti-theft security system for a road/track working vehicle includes: an outrigger 14 for supporting a vehicle body 10 so as to disable traveling of a vehicle body 10; outrigger detection means 62 for detecting that the outrigger 14 has touched the ground; iron wheel detection means 61 for detecting that the iron wheels 13 have been stored; and a control device 50 for controlling the road/track working vehicle 1 so that it cannot travel, on conditions of both jack grounding detected by the outrigger detection means and storage of the iron wheels detected by the iron wheel detection means.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an antitheft device for a track-and-rail work vehicle having a tire for traveling on a road and an iron wheel for traveling on a track.

  In recent years, theft cases in which work vehicles such as crane vehicles and aerial work vehicles are stolen while being stored in a parking lot are increasing. As a countermeasure, the work vehicle is equipped with an antitheft device. As an antitheft device, a device that controls a work vehicle to be inoperable using a personal identification number is known. Other anti-theft devices include, for example, an unload valve that unloads the hydraulic circuit for driving the work equipment by operating the anti-theft switch, and sets the unload state during storage, There are things that prevent theft by releasing the unload state at the start.

  However, the anti-theft device of the type using the former password number requires the installation of a password number input means for inputting the password number to the work vehicle and a release means when the password number is forgotten, and the anti-theft device is complicated. There was a problem of becoming expensive. In addition, the latter anti-theft device has a problem that it is easily released when a third party knows the mounting position of the anti-theft switch.

  In order to solve these problems, for example, in Patent Document 1, the operation state operated when the power switch is turned off when the work vehicle is stored is stored in the operation state storage means, and the work vehicle is operated. An antitheft device is disclosed that is collated with an operating state that is being operated at the time when the power switch is turned on when the power switch is turned on. With this configuration, it is not necessary to add a device such as a code number input means, it can be configured at low cost using an existing device, and a highly reliable anti-theft device for a work vehicle that is difficult to release fraud by a third party. It becomes.

Japanese Patent No. 4355620

  However, in the anti-theft device of Patent Document 1 described above, there is a possibility that the operation will be disabled by accidentally setting the anti-theft function by unintentionally setting the anti-theft function during the operation. . If the anti-theft function setting operation is performed unintentionally in this way, the operator cannot cancel the setting operation because the operation state is not stored.

  In view of the above, an object of the present invention is to provide an antitheft device for a railroad work vehicle that can prevent the antitheft function from being erroneously set while the railroad work vehicle is working in the track.

  In order to achieve the above object, an antitheft device for a roadway working vehicle according to the present invention is an antitheft device for a roadway working vehicle having a road running tire and a track running iron wheel, which makes it impossible to travel the vehicle body. Outriggers to be supported, outrigger detection means for detecting that the outriggers are grounded, iron ring detection means for detecting that the iron rings are stored, jack grounding and iron ring detection means detected by the outrigger detection means A control device is provided for controlling the railroad work vehicle so that it cannot travel on the condition that both the storage of the iron wheel detected by the vehicle is stored.

  Thus, the antitheft device for a railroad work vehicle of the present invention includes both an outrigger, an outrigger detection means, an iron wheel detection means, a jack ground detected by the outrigger detection means, and an iron wheel storage detected by the iron wheel detection means. And a control device that controls the vehicle so that it cannot travel. With this configuration, since the iron wheel is not stored during work in the track, it is possible to prevent the work from becoming impossible because the antitheft function is set unintentionally during the work.

It is a side view of the track land cargo crane at the time of track running. It is explanatory drawing explaining the system configuration | structure of the hydraulic system / control system of an antitheft device. It is the flowchart explaining the flow of control of the antitheft device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, although the following example demonstrates the railroad cargo crane 1 as a railroad working vehicle, it is not limited to this. Road-rail work vehicles (track-and-land use work vehicles) include road-rail tires and track-rail tires that can be extended and stowed, such as road-rail rough terrain cranes and road-rail high-altitude work vehicles, in addition to the road-rail cargo crane 1. The present invention can be applied to any vehicle that has (orbital ring) and works using an outrigger.

(Mechanical structure)
First, with reference to the side view of FIG. 1, the overall configuration of a railroad cargo crane (railway loading type truck crane) 1 as a railroad work vehicle including the antitheft device S for a railroad work vehicle of the present invention will be described. As shown in FIG. 1, the railroad cargo crane 1 includes a vehicle body 10 for traveling on a roadway or a track, a loading platform 20 for loading materials, and a small crane 30 for loading and unloading materials. I have.

  As shown in FIG. 1, the vehicle body 10 stably holds the vehicle 10 when working with a cab 11 disposed on the front side of the vehicle, wheels 12 for roadway travel, iron wheels 13 for track travel, and a crane 30. An outrigger 14 for supporting, and a turntable 15 for changing the direction of the vehicle 10 at a place where the roadway and the track cross each other are provided.

  The wheels 12 are rubber wheels disposed on the front, rear, left, and right sides of the vehicle body 10 and are driven to rotate using the engine as a direct power source. During traveling on the road and during work, the wheel 12 is positioned below the iron wheel 13. The wheel 12 is positioned above the iron wheel 13 during the track travel and during the track work. At the time of storage, the front wheel 12 is lifted by the outrigger 14.

  The iron wheel 13 is an iron wheel disposed behind the wheel 12 in the front, rear, left, and right sides of the vehicle body 10, and is rotatably supported at the lower end portion of the iron wheel support member 16 that extends downward from the vehicle body 10. When traveling on the road, the iron wheel 13 is stored. At the time of running on the track, the front and rear iron wheels 13 are projected and placed on the track. During the work, the front iron ring 13 is levitated by the outrigger 14 and the rear iron ring 13 is placed on the track. At the time of storage, the iron wheel is stored in order to travel on the road to the storage place. In addition, since the iron ring 13 is overhanging when storing in a track | orbit, in order to set the anti-theft device S of a present Example, the iron ring 13 should be stored in the state levitated by the outrigger 14. Is required. In this embodiment, an iron wheel detecting means 61 for detecting that the iron wheel 13 is completely stored is installed on the vehicle body 10 or the iron wheel support member 16 (see FIG. 2).

  The iron ring support member 16 includes an upper member 17 attached to the vehicle body 10 and a lower member 18 attached to the upper member 17 so as to be rotatable (can be extended and retracted). The iron wheel support member 16 has an orbital travel position in which the iron wheel 13 protrudes downward from the wheel 12 by a telescopic operation of the iron wheel vertical drive cylinder 76, and a storage position in which the iron wheel 13 is stored in the lower part of the vehicle body 10. And move to. The iron wheel 13 itself is rotationally driven by an iron wheel rotation motor 77 that is rotationally driven by the hydraulic oil discharged from the hydraulic pump 70.

  The outriggers 14 are disposed on the left and right sides of a crane base 31 (to be described later) behind the cab 11 and in front of the loading platform 20 in the vehicle body 10. The outrigger 14 can slide outward in the width direction, and can extend downward by the extension drive of the jack cylinder 75. The outrigger 14 lifts and supports the front portion of the vehicle body 10 by further extending after the lower end is grounded. The outrigger 14 may be of a type that rotates and jumps up after storage. In this embodiment, a hydraulic pressure gauge for hydraulic oil as an outrigger detection means 62 for detecting that the outrigger 14 is grounded is installed in the vicinity of the jack cylinder 75 on the hydraulic circuit (see FIG. 2).

  Here, the action / function of the outrigger 14 is specifically the following three. During the work, the vehicle body 10 is stably supported by the outrigger 14 and the rear iron wheel 13 so that the crane work can be performed. Further, during traveling, the outrigger 14 is stored to enable traveling movement. Further, at the time of storage, the outrigger 14 is extended to be in the jack-up state, so that the front wheel 12 is lifted, so that even if the engine can be started by unauthorized means, it cannot travel and can be prevented from being stolen.

  The loading platform 20 is formed in a box shape having an open top for loading materials, and is disposed on the vehicle rear side of the vehicle body 10. The loading platform 20 may be of a dumping type in which the vehicle front side rises with the vehicle rear side as a fulcrum.

  The crane 30 includes a crane base 31, a swing post 32 that is swingably mounted on the crane base 31 by a swing motor 71, and a boom 33 that is pivotally supported by a hoisting cylinder 72 on the upper portion of the swing post 32. A winch 34 that is disposed in the boom 33 and drives the boom 33 to extend and retract, a winch 34 that is attached to the swivel post 32 or the proximal boom 33 and drives the wire rope 36 to be wound up and down by the rotation of the winch motor 74. And a hook block 35 suspended from a wire rope 36.

(Configuration of hydraulic system and control system)
Next, the system configuration of the hydraulic system and the control system will be described using the circuit diagram of FIG. The hydraulic system and control system of the present embodiment includes a plurality of actuators 71 to 77, control valves 81 to 87 for controlling the actuators 71 to 77, an iron wheel detection means 61 and an outrigger detection means 62 as a detection system, and remote control. A device (a radio control transmitter) 48, a centralized control panel 40, and a controller 50 as a control device are provided.

  As the actuator, there are a swing motor 71, a hoisting cylinder 72, a telescopic cylinder 73, a winch motor 74, a jack cylinder 75, an iron wheel vertical drive cylinder 76, and an iron wheel rotation motor 77. Further, as the control valves for controlling the above actuators, all of them are a swing control valve 81, an undulation control valve 82, an expansion / contraction control valve 83, a winch control valve 84, a jack control valve 85, an upper and lower iron wheel, which are electromagnetic three-position switching valves. There are a drive control valve 86 and an iron wheel rotation drive control valve 87. Among these, the jack control valve 85 expands the jack cylinder 75 by the switching operation to the extension position based on an instruction from the controller 50, and contracts the jack cylinder 75 by the switching operation to the contraction. Further, the iron wheel up / down drive control valve 86 extends the iron wheel up / down drive cylinder 76 by the switching operation to the extension position based on an instruction from the controller 50 to overhang the iron wheel 13, and the iron wheel up / down drive cylinder by the switching operation to the reduction position. 76 is reduced and the iron wheel 13 is stored.

  As a detection system, there are an iron wheel detection means 61 for detecting that the iron wheel 13 is completely retracted, and an outrigger detection means 62 that is a pressure gauge for detecting that the outrigger 14 is grounded. The iron wheel detection means 61 transmits a detection signal to the controller 50 when the iron wheel 13 is completely stored. The outrigger detection means 62 is a hydraulic gauge arranged on the hydraulic circuit of the jack cylinder 75. The outrigger detection means 62 detects that the outrigger 14 is grounded when the measured hydraulic pressure value exceeds a predetermined value.

  In this embodiment, the outrigger 14 and the relief valve 43 serving as the iron wheel unloading valve and the iron wheel unloading valve are arranged in the hydraulic circuit that drives the iron wheel 13 to extend and retract. The relief valve 43 is disposed between the most upstream actuator and the hydraulic oil tank in the discharge oil passage of the hydraulic pump 70. A pilot relief valve 43b and an unloading opening / closing valve 46 are arranged in parallel in the vent circuit 43a of the relief valve 43. Therefore, if the on-off valve 46 is opened in the non-excited state, the set pressure of the relief valve 43 becomes the tank pressure and the unloaded state is entered. When the on-off valve 46 is energized and closed, the set pressure of the relief valve 43 becomes high, which is the set pressure of the pilot relief valve 43b, and the on-load state is entered. As described above, the relief valve 43 is switched between the unload state and the on-load state by opening / closing the unloading on-off valve 46, and constitutes an unloading valve in cooperation with the on-off valve 46.

  If the crane is equipped with an overwinding prevention device for the hook block 35 and an unloading valve for the overwinding prevention device, this unloading valve can be used. In this case, since it is not necessary to prepare a new unloading valve, it can be configured at a lower cost.

  On the operation panel of the remote control device (RC transmitter) 48, switches for setting various operation modes such as horizontal movement of hooks, turning operation means, hoisting operation means, telescopic operation means, winch operation means, etc. are arranged. Has been. A common speed indicating lever is provided on the back side of the grip to indicate each driving speed of turning, undulation, expansion and contraction, and winch. The remote operation device 48 of this embodiment further includes an “outrigger mode” in which the jack cylinder 75 is operated by a combination of a switch and an operation means. Based on the valve selection signal from each operation means and the speed command signal from the speed instruction lever, the remote operation device 48 transmits an operation signal for moving the corresponding control valve by a spool movement amount corresponding to the operation amount of the speed instruction lever. It is generated and transmitted to the controller 50.

  The central control panel 40 is a control panel that is attached to the crane base 31. A warning lamp, an empty rated load table, and a working radius lift chart are arranged at the top, and an accelerator switch 40a and a volume switch at the bottom. 40b and a horn switch 40c are arranged. Using these switches 40a to 40c, various settings of the anti-theft function (that is, setting of the security code, setting of the anti-theft function (ON), release of the anti-theft function (OFF), confirmation of the security code, etc.) are executed. Is done.

  The controller 50 as a control device includes a receiving unit 51 that receives an operation signal transmitted from the remote operation device 48, and valve switching operation signals to the corresponding control valves 81 to 87 based on the operation signal received by the receiving unit 51. The anti-theft control unit 53 executes a predetermined anti-theft program based on an operation signal from the receiving unit 51.

  The anti-theft control unit 53 performs control so that the roadway cargo crane 1 as a roadway working vehicle cannot travel on the condition that both the jack ground detected by the outrigger detection unit 62 and the iron wheel storage detected by the iron wheel detection unit 61 are used. . Specifically, when the horn switch 40c is pressed for 1 second with the volume switch 40b set to “up”, the anti-theft control unit 53 determines whether both the jack grounding and the iron wheel storage conditions are satisfied. If it is satisfied, the anti-theft function is set, a voice message indicating that the anti-theft function is set is issued, and “PASS” is displayed on the mode indicator. On the other hand, if at least one of the conditions is not satisfied, a voice message is issued prompting the user to satisfy the unsatisfied condition. When both the conditions are satisfied and the anti-theft function is set, the opening / closing valve 46 of the hydraulic circuit is de-energized to open the valve, so that the set pressure of the relief valve 43 becomes the tank pressure and is unloaded. The load is entered and the actuator is disabled.

  As described above, the outrigger 14, the outrigger detection means 62, the iron wheel detection means 61, the controller 50 as a control device, and the relief valve 46 as an unloading valve provide an antitheft device for a railroad work vehicle. S is configured.

(Anti-theft function setting)
Next, the flow of control when the anti-theft function is set in the anti-theft device S for a railroad work vehicle of this embodiment will be described using the flowchart of FIG. First, the horn switch 40c is pressed for about 1 second while switching the volume switch 40b to the “up” side (step S1). Next, the anti-theft control unit 53 of the controller 50 receives a signal indicating whether or not the iron wheel 13 has been stored from the iron wheel detecting means 61 (step S2). Next, the anti-theft control unit 53 of the controller 50 receives the pressure value from the outrigger detection means 62 that is a pressure gauge (step S3).

  Next, the anti-theft control unit 53 determines whether or not the outrigger 14 is grounded based on the received pressure value (step S4). If the outrigger 14 is not grounded (NO in step S4), the voice message “Please ground the jack” is output (step S41), and the process is terminated.

  If the outrigger 14 is grounded (YES in step S4), it is determined whether or not the iron wheel 13 is stored (step S5). If the iron wheel 13 is not stored (NO in step S5), the voice message “Please store the iron wheel” is output (step S51), and the process is terminated.

  If the iron wheel 13 is stored (YES in step S5), the hydraulic circuit is brought into an unloaded state (step S6). Specifically, by opening the open / close valve 46 from the excited state to the non-excited state, the set pressure of the relief valve 43 is set to the tank pressure to be in the unloaded state. Finally, the voice message “Anti-theft has been set” is output and the process is terminated (step S7).

(Release anti-theft function)
A method for canceling the anti-theft function will be described. However, a description of the control flow is omitted. When canceling the anti-theft function, the engine is started and the hydraulic pump is started, so that the password input is requested. Next, when the volume switch 40b is set to “down”, the horn switch 40c is pressed for about 1 second to enter an input standby state. Then, the digit is selected by “up” or “down” of the accelerator switch 40, and the numerical value is changed by “up” or “down” of the volume switch 40b. When the input is completed, the antitheft is canceled by pressing the horn switch 40c again.

(PIN setting)
A method for setting a personal identification number will be described. However, a description of the control flow is omitted. When setting a personal identification number, the personal identification number already registered is lit up by pressing the horn switch 40c for about 3 seconds with the volume switch 40b set to "down". Next, when the horn switch 40c is pressed for about 10 seconds while the volume switch 40b is set to "down", an input standby state is established. Then, the digit is selected by “up” or “down” of the accelerator switch 40a, and the numerical value is changed by “up” or “down” of the volume switch 40b. When the input is completed, the password is set by pressing the horn switch 40c again.

(effect)
Next, the effects produced by the antitheft device S for a railroad work vehicle of this embodiment will be listed and described.

(1) As described above, the anti-theft device S for a railroad work vehicle according to this embodiment is an antitheft device S for a roadway work vehicle that includes a tire 12 for road travel and an iron wheel 13 for track travel. The outrigger 14 that supports the vehicle body 10 so that it cannot run, the outrigger detection means 62 that detects that the outrigger 14 is grounded, the iron wheel detection means 61 that detects that the iron wheel 13 is stored, and the outrigger detection means 62 And a control device 50 that controls the track work vehicle 1 so as not to travel on the condition that both the jack ground detected and the iron wheel storage detected by the iron wheel detection means 61 are provided. With such a configuration, since the possibility of storing the iron wheel 13 during work in the track is extremely low, it is possible to prevent the anti-theft function from being set unintentionally during work and thus preventing the work from being disabled.

  That is, at the start of work, the work posture is such that the outrigger 14 is grounded by extending the jack cylinder 75 and the front side of the vehicle body 10 is lifted. In the working posture, not only the wheel 12 but also the front iron wheel 13 floats. At the end of the work, the iron cylinder 13 is placed on the track by reducing the jack cylinder 75 again. If it does so, since it is not necessary to dare to store the iron wheel 13 in the middle of work, the iron wheel 13 is overhanging at the time of work. That is, as a general rule, the iron wheel 13 protrudes while working on the track during work. In this way, by adding an event that is unlikely to occur during the operation to the condition, it is possible to prevent the operation from being inadvertently set by preventing theft during the operation.

  And in the state where anti-theft is set, in addition to the outrigger 14 being grounded, the anti-theft measures are doubled and tripled because the iron wheel is stored. That is, if the outrigger 14 is grounded on the road or on the track, even if the engine can be started, the outrigger 14 cannot travel because of an obstacle during traveling. Similarly, if the iron wheel 13 is stored on the track, the vehicle cannot travel on the track.

(2) The anti-theft device S for a railroad work vehicle further includes a relief valve 43 as an outrigger unloading valve disposed in a hydraulic circuit that drives the outrigger 14. When both of the conditions for storing the iron wheel and the iron wheel are satisfied, the relief valve 43 can be configured to be in an unloaded state. With this configuration, the outrigger 14 can be stored with a simple configuration. If the outrigger 14 is overhanging, it cannot move on the road or on the track.

(3) The anti-theft device S for a railroad work vehicle further includes a relief valve 43 as an iron wheel unloading valve disposed in a hydraulic circuit for extending and retracting the iron wheel 13 to place the railcar cargo crane 1 in a storage state. In addition, the relief valve 43 can be configured to be in an unloaded state when both the jack grounding and the iron wheel storage conditions are satisfied. By comprising in this way, the iron ring 13 overhang | projection can be made impossible with a simple structure. If the iron wheel 13 cannot be extended, it cannot be pulled on the track.

  The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to the present invention. included.

  For example, in the above-described embodiment, the case where the relief valve 43 that unloads the entire hydraulic circuit is provided as the outrigger unloading valve and the iron wheel unloading valve. However, the present invention is not limited to this. It may be a relief valve in which only the jack cylinder 75 is unloaded, or a relief valve in which only the iron wheel vertical drive cylinder 76 is unloaded.

S Anti-theft device for railroad working vehicles 1 Railroad cargo crane (railway working vehicle)
12 wheel 13 iron wheel 14 outrigger 40 centralized control panel 40a accelerator switch 40b volume switch 40c horn switch 50 controller 51 receiving unit 52 output unit 53 anti-theft control unit 61 iron wheel detection means 62 outrigger detection means 75 jack cylinder 76 iron wheel vertical drive cylinder 85 jack Control valve 86 Iron wheel vertical drive control valve

Claims (3)

An antitheft device for a roadway working vehicle having a tire for road driving and an iron wheel for track traveling,
An outrigger that supports the vehicle so that it cannot run;
Outrigger detection means for detecting that the outrigger is grounded;
An iron wheel detection means for detecting that the iron wheel is stored;
A control device for controlling the railroad work vehicle so that it cannot travel on the condition that both the jack grounding detected by the outrigger detection means and the iron wheel storage detected by the iron wheel detection means;
An antitheft device for a railroad work vehicle comprising: An outrigger unloading valve disposed in a hydraulic circuit for driving the outrigger;
2. The outrigger unloading valve is brought into an unloading state when both conditions of the jack grounding and the iron wheel storage are satisfied when the railroad working vehicle is put into a storage state. Anti-theft device for a railroad work vehicle. An iron wheel unloading valve disposed in a hydraulic circuit for extending and retracting the iron wheel;
2. The iron wheel unloading valve is brought into an unloading state when both conditions of the jack grounding and the iron wheel storage are satisfied when the railroad working vehicle is put in a storage state. Item 20. An antitheft device for a railroad work vehicle according to item 2.