JP2008254472A - Track/road vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent damage of a track traveling device 10 of a track/road vehicle when an outrigger jack 28 is stored with the track traveling device 10 not completely downwardly projected. <P>SOLUTION: The track/road vehicle is provided with a projection detection means 22 for detecting the projection state of a track traveling device 10. When the outrigger jack 28 is stored in the state that the outrigger jack 28 is stretched to support the track/road vehicle, contraction of the outrigger jack 28 is restricted when the projection detection means 22 detects the non-projection state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a road-rail vehicle that performs road travel and track travel.

This kind of road-rail vehicle includes a road running wheel and a road running device including an iron wheel. The road running device is stored at the upper side when running on the road, and runs on the road running wheel. The device is extended downward, and the road traveling wheel is lifted to travel on the track. A work machine such as an aerial work machine, a crane machine, a digging pillar machine, etc. is mounted on the vehicle and used for track maintenance and inspection work.

  This type of road-rail vehicle is disposed on the front, rear, left and right of the road-rail vehicle, and is attached to the outrigger slide extending from the retracted state in the vehicle width direction and the tip of the outrigger slide, and extends downward from the retracted state to the vehicle body. Outrigger jack for lifting and supporting The track traveling device is stored upward and separated from the ground when traveling on the road by road traveling wheels, but when traveling on the track, the front and rear track traveling devices are extended downward, and the iron wheels provided in the track traveling device are provided. Run on the track.

In this type of track-and-road vehicle, the track traveling device is displaced between the upper storage position and the lower overhanging position by the track traveling device vertical movement means. Is used. The track running device is held at the upper storage position when not in use.
Also, during work, after running on the track and extending the outrigger slide at the work site, the outrigger jack is extended, and the work equipment such as an aerial work machine, crane machine, and digging pillar machine is extended to perform maintenance work on the track. I do. At the end of the work, a work machine such as an aerial work machine, a crane machine, a digging pillar machine, etc. is stored, an outrigger jack is stored, an outrigger slide is stored, and the track travels on the track.

Such a road-rail vehicle is known from Japanese Patent No. 3681257.
Japanese Patent No. 3681257 (page 7, FIG. 1)

  By the way, the above-mentioned track-and-rail vehicle sometimes stores the outrigger jack without completely extending the track running device downward when the outrigger jack is stored after working at the work site on the track. In this case, the track traveling device receives the weight of the track-and-rail vehicle in a posture in which the strength for supporting the vehicle cannot be secured, and the track traveling device may be damaged.

  The present invention seeks to provide an amphibious vehicle that solves such problems.

  In order to achieve the above object, an amphibious vehicle according to claim 1 is equipped with a work machine and includes a road traveling wheel and a track traveling device provided with an iron wheel. In a road-rail vehicle in which the road traveling device is extended downward and the road traveling wheel is lifted and the road traveling wheel is lifted to travel on the track traveling device, the track traveling device is extended. Track storage device vertical movement means for storing, outrigger jacks that are arranged on the front, rear, left and right of the road-railing vehicle and extend to support the road-railing vehicle, overhang detection means for detecting the overhanging state of the track traveling device, When the outrigger detecting unit detects a non-overhanging state when the outrigger jack is retracted while being extended and supporting a road-rail vehicle, an outrigger It is characterized in that a control device for regulating the reduction of Tsu key.

  The road-rail vehicle according to claim 2 is the vehicle according to claim 1, wherein the control device moves up and down the track traveling device until the overhang detection means detects a non-overhang state when the outrigger detection unit detects a non-overhang state. The track traveling device is extended by a moving means, and when the extended state is detected, the reduction restriction of the outrigger jack is released.

  The road-rail vehicle according to claim 3 is provided with means for detecting whether the vehicle is in a track running state or a road running state in claim 1 or claim 2, and the detecting means is a road running state. When this is detected, the control device releases the reduction restriction of the outrigger jack.

  The track-and-road vehicle according to claim 4 is characterized in that the means for detecting whether the vehicle is in the track running state or the road running state according to claim 3 is a storage detection unit of the track running device. .

When the outrigger jack is retracted in a state where the outrigger jack is retracted while the outrigger jack is extended to support the road-rail vehicle, the road-rail vehicle of the present invention according to claim 1 detects the non-overhanging state of the outrigger jack. Since the reduction is restricted, damage to the track traveling device can be prevented.
In the amphibious vehicle of the present invention according to claim 2, when the track traveling device is not fully extended downward, the extension detecting means detects a non-extended state and restricts the reduction of the outrigger jack. The track traveling device is extended by means of the vertical movement means until it is detected, and after the extension detection means detects the extended state, the outrigger jack reduction restriction is released and the outrigger jack is reduced. Damage can be prevented.

  The road-rail vehicle of the present invention according to claim 3 detects whether it is in a track running state or a road running state and switches the control. If the control is performed and the vehicle is running on the road, the outrigger jack can be reduced by releasing the reduction regulation of the outrigger jack even if the overhang detection means detects the non-overhang state.

  The track-and-rail vehicle of the present invention according to claim 4 uses the storage detection means of the track traveling device to control whether the vehicle is in the track traveling state or the road traveling state. The state of can be easily and automatically detected.

Hereinafter, a road-rail vehicle according to the present invention will be described with reference to FIGS. FIG. 1 is an explanatory view for explaining a road-rail vehicle adopting the present invention, in which an aerial work machine 3 is mounted on the vehicle body of the vehicle 1. The aerial work machine 3 includes a swivel base 4 provided on the vehicle body frame 2 and a telescopic boom 6 that can be freely raised and lowered by the hoisting cylinder 5 on the swivel base 4. A posture maintaining device 8 including a leveling cylinder that keeps the work table 7 horizontal is provided.
The road-rail vehicle used in the present application has an aerial work machine 3 as shown in FIG. 1 mounted on the vehicle body frame 2, but is not limited to the aerial work machine 3. It can be used for road-rail vehicles equipped with the above working machines.
The road-rail vehicle shown in FIG. 1 is arranged on the front, rear, left and right of the road-rail vehicle, and is attached to the outrigger slide extending from the retracted state in the vehicle width direction and the distal end of the outrigger slide, and extends downward from the retracted state. And an outrigger jack 28 for lifting and supporting the vehicle body. The road-rail vehicle includes a road traveling wheel 9 for road traveling on the vehicle body frame 2 and a track traveling device 10 including an iron wheel 12 so that road traveling and track traveling can be selected and performed.

The front and rear track running apparatuses 10 have substantially the same structure as each other, and are arranged symmetrically in the front-rear direction of the body frame front end 2a and the body frame rear end 2b of the body frame 2. The configuration and the mounting structure of each track traveling device 10 will be described with reference to FIGS. 2 and 3, which are arranged at the vehicle body frame rear end 2b. A holding table 14 is horizontally mounted on the lower surface of the vehicle body frame 2, and two holding table brackets 16 are welded to the left and right of the holding table 14, and a case 19 is welded to the upper part of the holding table 14. The holding base bracket 16 is provided with a support shaft 17 for moving the track traveling device 10 up and down so that the track traveling device 10 is pivotally supported by the holding base bracket 16. As shown in FIGS. 1, 2, and 4, a hydraulic cylinder that is the track traveling device vertical movement means 18 is disposed at an appropriate position between the case 19 and the track traveling device 10, and the hydraulic cylinder is expanded and contracted so that the track traveling device 10 is illustrated in FIGS. Further, it is possible to move up and down between the upper storage position and the lower overhang position. When the track traveling device is stored upward, it is fixed by the track traveling device fixing means 20 so that the hydraulic cylinder as the track traveling device vertical movement means 18 does not extend due to traveling vibration. When retracted, when it is positioned up to the retracted position, it is automatically fixed by the track traveling device fixing means 20, and when the track traveling device 10 is extended from that position, the track traveling device fixing means 20 can be released and extended. It becomes possible. A pin 27 relating to the track traveling device fixing means 20 is welded and fixed to the track traveling device 10. Thus, the track traveling device 10 is reliably fixed to the upper storage position by the track traveling device fixing means 20 when traveling on the road. The track traveling device vertical movement means 18 is operated by the track traveling device vertical movement means operation switch 33 (not shown). The overhang detection means 22 includes an overhang detector 22a and a proximity piece 22b. The holding stand bracket 16 is provided with an overhang detector 22a, and when the track traveling device 10 is fully extended and comes into contact with the holding table 14, the overhang detector 22a has a proximity piece 22b attached to the track running device 10. The overhang state is detected in close proximity. The storage detection means 24 includes a storage detector 24a and a proximity piece 24b. The holding bracket 16 is provided with a storage detector 24a. When the track traveling device 10 is stored in the storage detector 24a, the proximity piece 24b attached to the track traveling device 10 comes close to detect the stored state. It is like that. The track traveling device 10 includes one iron wheel 12 on each of the left and right sides, and the iron wheel 12 is arranged with a predetermined interval (two track intervals). Each iron wheel 12 includes a drive motor 25 and a brake 21.
Each of the front and rear track traveling devices 10 floats significantly above the lower surface of the road surface traveling wheel 9 at the upper retracted position, and the road surface traveling wheel 9 contacts the road surface and travels on the road surface. In the state where 10 is extended downward, the lower surface of the iron wheel 12 of the track traveling device 10 protrudes downward from the lower surface of the road surface traveling wheel 9, and each iron wheel 12 is positioned on the two left and right tracks 13 to travel on the track. It is supposed to be.

  First, a first embodiment of an amphibious vehicle according to the present invention will be described below based on a block diagram shown in FIG. 5 and a flowchart shown in FIG. An outrigger jack storage switch 26 which is operated when the outrigger jack 28 is retracted and stored is disposed at the rear portion of the vehicle 1 (not shown). The road-rail vehicle is provided with a control device 29, which receives a signal from the outrigger jack storage switch 26 that is operated when the outrigger jack 28 is stored, and a signal from the overhang detection means 22. Control for restricting or permitting the drive of the outrigger jack 28 is performed, and an alarm signal is output to the alarm device 32 when the drive is restricted.

  That is, the road-rail vehicle is configured to supply or discharge the hydraulic pressure from the hydraulic pressure source to the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28, and to extend or contract the outrigger jack 28. Includes a restricting means for restricting or allowing the hydraulic pressure to be supplied to and discharged from the outrigger jack 28.

Hereinafter, the control of the control device 29 will be described based on the flowchart shown in FIG. The flowchart shown in FIG. 6 is a flowchart for explaining only the storing operation of the outrigger jack 28 related to the present invention, and other controls cannot be performed, but actually other controls are performed simultaneously. It has become. Therefore, it will be described below that S1 has already been started.
In S2, it is detected that the outrigger jack storage switch 26 has been operated in response to a signal from the outrigger jack storage switch 26. If the operation of the detected outrigger jack storage switch 26 is not operated in S3, the process returns to S2, and if it is operated, the process proceeds to S4. In S4, the projecting state of the track traveling device 10 is detected. In S5, if the detected projecting state of the track traveling device 10 is the projecting state, the process proceeds to S6, and the detected track traveling device 10 is in the non-projecting state. And go to S7. In S7, the drive control of the outrigger jack is controlled so as to restrict the reduction operation of the outrigger jack 28. In S8, the alarm device 32 informs that the track traveling device 10 is not in the overhanging state, and returns to S2. In S6, the outrigger jack 28 for storing the outrigger jack 28 is driven to contract, and the process returns to S2. The above control is performed until the operation of the outrigger jack storage switch 26 is stopped.

The road-rail vehicle according to the first embodiment of the present invention configured as described above operates as follows. When the operation is completed, the outrigger jack storage switch 26 is operated to store the outrigger jack 28 of the road-rail vehicle and to support the vehicle 1 by the track traveling device 10. Then, the control device 29 receives a signal from the outrigger jack storage switch 26 and a signal from the overhang detection means 22. At this time, it is assumed that the track traveling device 10 is separated from the holding table 14 and the overhang detecting means 22 detects the non-overhang state of the track traveling device 10. The control device 29 discriminates the non-overhanging state of the track traveling device 10 in S5 shown in FIG. 6, performs the reduction regulation of the outrigger jack 28 in S7, and activates the alarm device 32.
That is, the hydraulic pressure from the hydraulic pressure source is supplied to and discharged from the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28 to reduce the outrigger jack 28, but the hydraulic pressure applied to the outrigger jack 28 is controlled by the control device 29. Therefore, the alarm device 32 notifies that the track traveling apparatus 10 is not in the overhanging state.

  Therefore, when the outrigger jack 28 is retracted when the track traveling device 10 is not fully extended downward, the storage of the outrigger jack 28 can be restricted, and the track traveling device 10 supports the vehicle. Support in a posture in which the strength cannot be ensured can be prevented, and damage to the track traveling device 10 and the like can be prevented.

On the other hand, when the track traveling device 10 abuts on the holding base 14 and the overhang detecting means 22 detects the projecting state of the track traveling device 10, the control device 29 performs the operation of the track traveling device 10 in S5 shown in FIG. Since the overhanging state is determined and the contraction of the outrigger jack 28 is permitted in S6, the hydraulic pressure from the hydraulic source is supplied to and discharged from the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28, and the outrigger jack 28 Can be reduced. At this time, since the track traveling device 10 is fully extended downward, the track traveling device 10 has sufficient strength to support the vehicle, and the track traveling device 10 and the like are not damaged.
Therefore, when the alarming device 32 is operated by retracting the outrigger jack 28 when the track traveling device 10 is not completely extended downward, the track traveling device vertical movement means operation switch 33 is operated, It is only necessary to supply the hydraulic pressure to the track travel device vertical movement means 18 so that the track travel device 10 contacts the holding base 14 and the overhang detection means 22 detects the projecting state of the track travel device 10. Then, the control device 29 discriminates the overhanging state of the track traveling device 10 in S5 shown in FIG. 6 and allows the outrigger jack 28 to be reduced in S6. Therefore, based on the operation of the operating means of the outrigger jack 28. Thus, the outrigger jack 28 can be reduced by supplying and discharging the hydraulic pressure from the hydraulic source to the outrigger jack 28.

  Next, in the first embodiment, the storage of the outrigger jack 28 is regulated when the outrigger jack 28 is retracted without the track traveling device 10 being completely extended downward. The track traveling device 10 may be fully extended downward, and the outrigger jack 28 may be retracted after the extension. This case will be described below as a second embodiment based on the block diagram shown in FIG. 7 and the flowchart shown in FIG.

  The block diagram shown in FIG. 7 is different from the alarm device 32 shown in FIG. 5 in that the vertical movement means 18 of the track traveling device is arranged, and a part of the control device 29 is different. The device will be described below as a control device 31. Since the parts that are not different are the same, only the differences will be described.

  The control device 31 disposed in the road-rail vehicle operates the outrigger jack storage switch 26 to supply / discharge hydraulic pressure from the hydraulic source to the track travel device vertical movement means 18 when the overhang detection means 22 detects a non-extension state. Thus, the track traveling device vertical movement means 18 is extended, and the control device 31 is provided with a control means for controlling supply and discharge of hydraulic pressure to and from the track travel device vertical movement means 18.

  Hereinafter, the control of the control device 31 will be described based on the flowchart shown in FIG. The flowchart shown in FIG. 8 is a flowchart for explaining only the storing operation of the outrigger jack 28 related to the present invention, as in FIG. 7, and other controls cannot be performed. At the same time. Therefore, it will be described below that S1 has already been started.

Further, S1 to S7 are the same as those illustrated and described in FIG. 6, and thus description thereof will be omitted in the following description. In S9, when it is determined in S5 that the track traveling device 10 is not extended, the hydraulic pressure is supplied to the track traveling device up-and-down moving means 18 to be extended. And the process of S2-S9 is performed until the track traveling apparatus 10 is fully extended below in S9. When the track traveling device 10 is fully extended downward, the process proceeds from S5 to S6, and the outrigger jack 28 is reduced.
The road-rail vehicle of the second embodiment according to the present invention configured as described above operates as follows. When the operation is completed, the outrigger jack storage switch 26 is operated to store the outrigger jack 28 of the road-rail vehicle and to support the vehicle 1 by the track traveling device 10. Then, the control device 31 receives a signal from the outrigger jack storage switch 26 and a signal from the overhang detection means 22. At this time, it is assumed that the track traveling device 10 is separated from the holding table 14 and the overhang detecting means 22 detects the non-overhang state of the track traveling device 10. The control device 31 discriminates the non-extending state of the track traveling device 10 in S5 shown in FIG. 8, regulates the reduction of the outrigger jack 28 in S7, supplies the hydraulic pressure to the track traveling device vertical movement means 18 in S9, and tracks the track. The traveling device 10 is extended. And the process of S2-S9 is performed until the track traveling apparatus 10 is fully extended below in S9. When the track traveling device 10 is fully extended downward, the process proceeds from S5 to S6, and the outrigger jack 28 is reduced.
Therefore, when the track traveling device 10 is not fully extended downward, when the outrigger jack storage switch 26 is operated to store the outrigger jack 28, the track traveling device 10 is fully extended downward, The outrigger jack 28 can be reduced, support in a posture where the track traveling device 10 cannot secure the strength to support the vehicle can be prevented, and damage to the track traveling device 10 can be prevented.
On the other hand, when the track traveling device 10 comes into contact with the holding table 14 and the overhang detecting means 22 detects the projecting state of the track traveling device 10, the control device 31 performs the operation of the track traveling device 10 in S5 shown in FIG. Since the overhanging state is determined and the contraction of the outrigger jack 28 is permitted in S6, the hydraulic pressure from the hydraulic source is supplied to and discharged from the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28, and the outrigger jack 28 Can be reduced. At this time, since the track traveling device 10 is fully extended downward, the track traveling device 10 has sufficient strength to support the vehicle, and the track traveling device 10 and the like are not damaged.

  Next, based on the block diagram shown in FIG. 9 and the flowchart shown in FIG. 10, a third embodiment that discriminates whether the vehicle is in a track running state or a road running state and restricts the reduction of the outrigger jack. This will be described below.

  The block diagram shown in FIG. 9 differs from the block diagram shown in FIG. 5 in that the storage detection means 24 is arranged, and a part of the control device 29 described above is different. In the third embodiment, the control device is the control device 34. Will be described below. Since the others are not different, the same reference numerals are used and detailed description is omitted.

The control device 34 disposed in the road-rail vehicle cancels the restriction on the reduction of the outrigger jack when the storage detection means 24 detects the storage state when the outrigger jack storage switch 26 is operated in order to store the outrigger jack 28. When the non-storage state is detected, the control of the first embodiment is performed.
The vehicle body 2 is provided with the track traveling device fixing means 20 shown in FIGS. 2 and 4 so that the track traveling device 10 is locked when retracted, and the lock is released when the track traveling device 10 is extended, and the track traveling device 10 is extended. The storage detection means 24 for detecting the storage of the track traveling device 10 is composed of a storage detector 24a and a proximity piece 24b, the storage stand 24b is provided with the storage detector 24a, and the proximity piece 24b is placed at an appropriate position of the track traveling device 10. Provided.

Hereinafter, the control of the control device 34 will be described based on the flowchart shown in FIG. The flowchart shown in FIG. 10 is a flowchart for explaining only the storing operation of the outrigger jack 28 related to the present invention, and other controls cannot be performed, but other controls are actually performed at the same time. It has become. Therefore, it will be described below that S1 has already been started.
In 3rd Embodiment, S10 and S11 are added between S3-S4 in S1-S8 of FIG. 6 which is 1st Embodiment. Since S1 to S8 are the same as those illustrated and described in FIG. 6, description thereof will be omitted in the following description. In the third embodiment, when the operation of the outrigger storage switch 26 detected in S3 is operated, the process proceeds to S10. In S10, the stored state of the track traveling device 10 is detected. In S11, if the detected track traveling device 10 is in the stored state, the process proceeds to S6, and if the detected track traveling device 10 is not stored, the process proceeds to S4. move on.

  The road-rail vehicle of the third embodiment according to the present invention configured as described above operates as follows. When the work is completed and the outrigger jack 28 of the road-rail vehicle is stored, the outrigger jack storage switch 26 is operated. Then, the control device 34 receives a signal from the outrigger jack storage switch 26, a signal from the storage detection means 24, and a signal from the overhang detection means 22. At this time, it is assumed that the track traveling device 10 is stored, and the storage detecting unit 24 detects the stored state of the track traveling device 10. The control device 34 determines the retracted state of the track traveling device 10 in S11 shown in FIG. 10 and allows the outrigger jack 28 to be reduced in S6. The outrigger jack 28 can be reduced by supplying and discharging the hydraulic pressure from the outrigger jack 28 to the outrigger jack 28. At this time, since the track traveling device 10 is fully retracted upward, the road-rail vehicle is supported by the road traveling wheels 9.

  On the other hand, it is assumed that the track traveling device 10 is not completely stored upward, and the storage detection unit 24 detects the non-retracted state of the track traveling device 10. The control device 34 determines whether or not the track traveling device 10 is not stored in S11 shown in FIG. 10, and proceeds to S4. At this time, it is assumed that the track traveling device 10 is separated from the holding table 14 and the overhang detecting means 22 detects the non-overhang state of the track traveling device 10. The controller 34 discriminates the non-overhanging state of the track traveling device 10 in S5 shown in FIG. 10, performs the reduction regulation of the outrigger jack 28 in S7, and activates the alarm device 32.

  That is, the hydraulic pressure from the hydraulic pressure source is supplied to and discharged from the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28 to reduce the outrigger jack 28, but the hydraulic pressure applied to the outrigger jack 28 by the control device 34. Therefore, the alarm device 32 notifies that the track traveling apparatus 10 is not in the overhanging state.

  Therefore, when the outrigger jack 28 is retracted when the track traveling device 10 is not fully extended downward, the storage of the outrigger jack 28 can be restricted, and the track traveling device 10 supports the vehicle. Support in a posture in which the strength cannot be ensured can be prevented, and damage to the track traveling device 10 and the like can be prevented.

On the other hand, when the track traveling device 10 abuts on the holding base 14 and the overhang detecting means 22 detects the projecting state of the track traveling device 10, the control device 34 performs the operation of the track traveling device 10 in S5 shown in FIG. Since the overhanging state is determined and the contraction of the outrigger jack 28 is permitted in S6, the hydraulic pressure from the hydraulic source is supplied to and discharged from the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28, and the outrigger jack 28 Can be reduced. At this time, since the track traveling device 10 is fully extended downward, the track traveling device 10 has sufficient strength to support the vehicle, and the track traveling device 10 and the like are not damaged.
Therefore, when the alarming device 32 is operated by retracting the outrigger jack 28 when the track traveling device 10 is not completely extended downward, the track traveling device vertical movement means operation switch 33 is operated, It is only necessary to supply the hydraulic pressure to the track travel device vertical movement means 18 so that the track travel device 10 contacts the holding base 14 and the overhang detection means 22 detects the projecting state of the track travel device 10. Then, the control device 34 discriminates the extended state of the track traveling device 10 in S5 shown in FIG. 10, and allows the outrigger jack 28 to be reduced in S6. Therefore, based on the operation of the operating means of the outrigger jack 28. Thus, the outrigger jack 28 can be reduced by supplying and discharging the hydraulic pressure from the hydraulic source to the outrigger jack 28.

  Next, in the third embodiment, the outrigger jack is operated when the outrigger jack 28 is retracted when the track traveling device is not completely retracted upward and the track traveling device 10 is not completely extended downward. However, the track traveling device 10 may be automatically fully extended downward so that the outrigger jack 28 is retracted after the reduction restriction of the outrigger jack 28 is released. This case will be described below as a fourth embodiment based on a block diagram shown in FIG. 11 and a flowchart shown in FIG.

  The block diagram shown in FIG. 11 is different from the alarm device 32 shown in FIG. 9 in that the vertical movement means 18 of the track traveling device is arranged, and a part of the control device 34 is different. The apparatus will be described below as the control apparatus 35. Since the others are not different, the same reference numerals are used and detailed description is omitted.

  When the outrigger jack storage switch 26 is operated to store the outrigger jack 28 and the overhang detection means 22 detects a non-extension state, the control device 35 disposed in the road-rail vehicle uses the hydraulic pressure from the hydraulic power source when the outrigger jack 28 is operated. The track traveling device vertical movement means 18 is extended by supplying and discharging to the vertical movement means 18, and the control device 35 is provided with control means for controlling supply and discharge of hydraulic pressure to the track traveling device vertical movement means 18. ing.

Hereinafter, the control of the control device 35 will be described based on the flowchart shown in FIG. The flowchart shown in FIG. 12 is a flowchart for explaining only the storing operation of the outrigger jack 28 related to the present invention, as in FIG. 11, and other controls cannot be performed. At the same time. Therefore, it will be described below that S1 has already been started.
S1 to S7, S10, and S11 are the same as those illustrated and described in FIG. In S9, when it is determined in S5 that the track traveling device 10 is not extended, the hydraulic pressure is supplied to the track traveling device up-and-down moving means 18 to be extended. Then, the processes of S2, S3, S10, S11, S4, S5, S7, and S9 are performed until the track traveling apparatus 10 is completely extended downward in S9. When the track traveling device 10 is fully extended downward, the process proceeds from S5 to S6, and the outrigger jack 28 is reduced.
The road-rail vehicle of the fourth embodiment according to the present invention configured as described above operates as follows. When the work is completed and the outrigger jack 28 of the road-rail vehicle is stored, the outrigger jack storage switch 26 is operated. Then, the control device 35 receives a signal from the outrigger jack storage switch 26, a signal from the storage detection means 24, and a signal from the overhang detection means 22. At this time, it is assumed that the track traveling device 10 is stored, and the storage detecting unit 24 detects the stored state of the track traveling device 10. The control device 35 discriminates the retracted state of the track traveling device 10 in S11 shown in FIG. 12, and permits the outrigger jack 28 to be reduced in S6, so that the hydraulic power source is controlled based on the operation of the operating means of the outrigger jack 28. The outrigger jack 28 can be reduced by supplying and discharging the hydraulic pressure from the outrigger jack 28 to the outrigger jack 28. At this time, since the track traveling device 10 is fully retracted upward, the road-rail vehicle is supported by the road traveling wheels 9.

  On the other hand, it is assumed that the track traveling device 10 is not completely stored upward, and the storage detection unit 24 detects the non-retracted state of the track traveling device 10. The control device 35 determines whether or not the track traveling device 10 is not stored in S11 shown in FIG. 12, and proceeds to S4. At this time, it is assumed that the track traveling device 10 is separated from the holding table 14 and the overhang detecting means 22 detects the non-overhang state of the track traveling device 10. The controller 35 discriminates the non-extending state of the track traveling device 10 in S5 shown in FIG. 12, regulates the reduction of the outrigger jack 28 in S7, supplies the hydraulic pressure to the track traveling device vertical movement means 18 in S9, and tracks the track. The traveling device 10 is extended. Then, the processes of S5 to S9 and S2, S3, S10, S11, and S4 are performed until the track traveling device 10 is completely extended downward in S9. When the track traveling device 10 is fully extended downward, the process proceeds from S5 to S6, and the outrigger jack 28 is reduced.

Therefore, when the track traveling device 10 is fully retracted upward, the vehicle can be supported by the road traveling wheels 9 even if the outrigger jack 28 is reduced. Also, when the outrigger jack storage switch 26 is operated to store the outrigger jack 28 when the track traveling apparatus 10 is not fully retracted upward and the track traveling apparatus 10 is not fully extended downward, After the track traveling device 10 is completely extended downward, the outrigger jack 28 can be reduced, and the track traveling device 10 can be prevented from being supported in a posture where the strength for supporting the vehicle cannot be secured. Damage to the traveling device 10 can be prevented.
On the other hand, when the track traveling device 10 comes into contact with the holding table 14 and the overhang detecting means 22 detects the projecting state of the track traveling device 10, the control device 35 performs the operation of the track traveling device 10 in S5 shown in FIG. Since the overhanging state is determined and the contraction of the outrigger jack 28 is permitted in S6, the hydraulic pressure from the hydraulic source is supplied to and discharged from the outrigger jack 28 based on the operation of the operating means of the outrigger jack 28, and the outrigger jack 28 Can be reduced. At this time, since the track traveling device 10 is fully extended downward, the track traveling device 10 has sufficient strength to support the vehicle, and the track traveling device 10 and the like are not damaged.
As described above, since the track traveling device 10 is securely fixed at the upper storage position when traveling on the road by the track traveling device fixing means 20, the track storage device 10 is erroneously detected when the vehicle is traveling on the road. Is not detected and the track traveling device 10 is not overhanged.
Needless to say, the overhang detection means 22 and the storage detection means 24 can appropriately set detection switches such as proximity switches and limit switches. Needless to say, the proximity pieces 22b and 24b for detecting the proximity switch and the limit switch are appropriately attached to locations where the switches are detected. If the overhang detection means 22 is provided at a position where it can be detected that the track traveling device 10 is completely extended and is in contact with the holding base 14, it is limited to be provided on the holding base bracket 16. It goes without saying that there is no such thing. Needless to say, the storage detection means 24 is not limited to being provided on the holding bracket 16 as long as the storage detection means 24 is provided at a position where it can be detected that the track traveling device 10 is completely stored.

  Needless to say, the location of the track travel device vertical movement means operation switch 33 can be set as appropriate, for example, at the rear of the vehicle or in the vicinity of the track travel device vertical motion means 18.

  In addition, although the place of the outrigger jack storage switch is provided in the said vehicle 1 rear part, it cannot be overemphasized that a place is not limited.

  The block diagrams and flowcharts in FIGS. 5 to 12 illustrate one outrigger jack and one up / down moving means for the track traveling device, but it goes without saying that the four are controlled similarly.

  The control according to the present invention is manually performed until the operation of the outrigger jack storage switch 26 is stopped. However, even if the outrigger jack storage switch 26 is operated once and the hand is released, the control is performed until the control is completed. Automatic control may be used. Needless to say, a switch for forcibly terminating the control may be provided.

  It should be noted that when the track traveling device 10 is extended, a dedicated switch may be provided to release the track traveling device fixing means 20 or automatic control linked to the track travel device vertical movement manual operation switch may be used. There is no.

  In the above embodiment, the storage detection means 24 has been described as a means for detecting whether the vehicle is on a track or on the road. However, it is determined whether the worker is on a track or on the road. However, the switch may be configured so that the operator determines and operates the fact.

1 is an overall view of a road-rail vehicle according to the present invention. It is the figure which overhanged the track running device concerning the invention of this application. It is an AA arrow line view of FIG. It is the figure which stored the track | orbit traveling apparatus which concerns on invention of this application. 1 is a block diagram according to a first embodiment of the present invention. It is a flowchart of the control apparatus which concerns on 1st Embodiment of this invention. It is a block diagram concerning a 2nd embodiment of the invention in this application. It is a flowchart of the control apparatus which concerns on 2nd Embodiment of this invention. It is a block diagram concerning a 3rd embodiment of the invention in this application. It is a flowchart of the control apparatus which concerns on 3rd Embodiment of this invention. It is a block diagram concerning a 4th embodiment of the invention in this application. It is a flowchart of the control apparatus which concerns on 4th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body frame 2a Car body frame front end part 2b Car body frame rear end part 3 Work place in height 4 Swivel base 5 Lifting cylinder 6 Telescopic boom 7 Work table 8 Posture maintenance device 9 Road traveling wheel 10 Track traveling device 12 Iron wheel 13 Track 14 Holding base 16 Holding base bracket 17 Support shaft 18 Orbit traveling device vertical movement means 19 Case 20 Orbit traveling apparatus fixing means 21 Brake 22 Overhang detection means 22a Overhang detector 22b Proximity piece 24 Storage detection means 24a Storage detector 24b Proximity piece 25 Drive motor 26 Outrigger jack storage switch 27 Pin 28 Outrigger jack 29 Control device 31 Control device 32 Alarm device 33 Orbit travel device vertical movement means operation switch 34 Control device 35 Control device

Claims (4)

The vehicle is equipped with a working machine, and includes a road traveling device including a road traveling wheel and an iron wheel. The road traveling device is stored at the upper side when traveling on the road, and travels with the road traveling wheel. In a road-rail vehicle that extends with the road-traveling wheels floating and travels on the track-traveling device, the track-traveling device up-and-down moving means for projecting and storing the track-traveling device is disposed on the front, back, left, and right of the road-railing vehicle. The outrigger jack that extends and supports the road-rail vehicle, the overhang detection means that detects the overhang state of the track traveling device, and the outrigger jack that is stored while the outrigger jack is extended to support the road-rail vehicle And a control device for restricting reduction of the outrigger jack when the overhang detecting means detects a non-overhang state.軌陸 amphibious vehicles. 2. The control device according to claim 1, wherein when the outrigger jack is retracted, the control device extends the track traveling device by the track traveling device up-and-down moving means until the overhang detection state is detected. A road-rail vehicle characterized in that when the overhanging state is detected, the reduction restriction of the outrigger jack is released. 3. The control device according to claim 1, wherein means for detecting whether the vehicle is in a track traveling state or a road traveling state is provided, and when the detecting means detects that the vehicle is traveling on a road, the control device Is a road-rail vehicle characterized by the release of the outrigger jack reduction restriction. The road-rail vehicle according to claim 3, wherein the means for detecting whether the vehicle is in the track running state or the road running state is a storage detecting means of the track running device.