Slope work vehicle
The slope work vehicle facilitates efficient and safe lateral movement on slopes by using separate winch operation and tension detection to adjust wire tension and spacing, addressing the inefficiencies of conventional vehicles.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- 冈本俊仁
- Filing Date
- 2022-02-09
- Publication Date
- 2026-07-07
AI Technical Summary
Conventional slope working vehicles require re-anchoring and relocation to the flat ground for efficient lateral movement beyond the anchor's width, leading to decreased working efficiency.
A slope work vehicle equipped with left and right travel devices, winches, tension detection means, and wire fairleaders, allowing independent operation and tension adjustment of wires, enabling efficient lateral movement on slopes.
Enables efficient and safe lateral movement on slopes by adjusting wire tension and spacing, preventing interference with wires, thus enhancing working efficiency and safety.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to a slope working vehicle that moves on a slope and performs operations such as drilling holes.
Background Art
[0002] Conventionally, as an example of a slope working vehicle that is suspended by a wire of a winch and performs operations on a slope while traveling on the slope, there is "a working machine for slopes and the like characterized by comprising a vehicle body, a traveling device attached to this vehicle body and capable of traveling the vehicle body by hydraulic pressure, one base plate horizontally rotatably attached to substantially the central part of the vehicle body, a base plate rotating device using hydraulic pressure for rotating this one base plate, a workbench horizontally rotatably attached to substantially the central part of this one base plate, a workbench rotating device using hydraulic pressure for rotating this workbench, and a fall prevention device using a pair of winches attached to this one base plate or a pair of attachment fittings for attaching the tip ends of wires wound around a pair of winches" (Patent Document 1).
[0003] In such a working machine for slopes and the like, by fixing the wires provided on a pair of winches to an anchor at the upper part of the slope so as to be substantially inverted V-shaped in plan view, the working vehicle can be moved not only in the vertical direction of the slope but also in the lateral direction.
[0004] However, when using the slope working vehicle having the above configuration, although it can move in the lateral direction up to the width of the anchor, when attempting to move the slope working vehicle further in the lateral direction beyond the anchor, it was necessary to move the slope working vehicle to flat ground or a gentle slope once, re-drive an anchor at the upper part of the slope, and further replace the wire. Therefore, there was a drawback that the working efficiency deteriorated.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
[0006] In view of the above-mentioned drawbacks of conventional methods, the present invention aims to provide a slope work vehicle that can move efficiently in the left-right direction and a method for moving a slope work vehicle on a slope. [Means for solving the problem]
[0007] To achieve the above objective, the slope work vehicle according to claim 1 of the present invention comprises a work vehicle body, left and right travel devices provided on the work vehicle body, left and right winches provided on the work vehicle body and each equipped with a wire, winch operating means that can operate the left and right winches separately, tension detection means that detect the slack state of each wire, and a work machine provided on the work vehicle body. The wires provided on the left and right winches can suspend the work vehicle body using only one of them, and the work machine is a hydraulic excavator equipped with a driver's cab. The tension detection means detects the tension of each wire, The cockpit It is characterized by having a pair of notification means for notifying workers.
[0008] The slope work vehicle according to claim 2 is further characterized by comprising left and right wire fairleaders provided on the work vehicle body, which guide the wires of the left and right winches forward from the front of the work vehicle body, and spacing displacement means for displacing the distance between the wire fairleaders in the left-right direction.
[0009] [Effects of the Invention]
[0010] As is clear from the above explanation, the present invention provides the following effects. (1) In the invention described in claim 1, the suspension state of the slope work vehicle can be appropriately adjusted by winch operating means that can operate the left and right winches separately and tension detection means that detect the slack state of each wire provided on the left and right winches, and the wires can be attached and detached even when the vehicle is suspended on the slope. Therefore, the slope work vehicle can be moved efficiently in the left and right directions. (2) In the invention described in claim 2, the same effects as in (1) above can be obtained, and the work device can be prevented from interfering with the wire on the slope, so that work can be performed safely. [Brief explanation of the drawing]
[0011] Figures 1 to 9 are explanatory diagrams showing a first embodiment of the present invention. [Figure 1] An explanatory diagram of the slope work vehicle according to the first embodiment. [Figure 2] A plan view of the slope work vehicle according to the first embodiment. [Figure 3] A diagram illustrating the process of moving the slope work vehicle according to the first embodiment. [Figure 4] A block diagram showing the tension detection means and other components of a slope work vehicle. [Figure 5] Plan view of a slope work vehicle positioned on a slope. [Figure 6] Diagram illustrating the process of moving a slope work vehicle. [Figure 7] An explanatory diagram of the other wire relaxation process. [Figure 8] An explanatory diagram of the other wire movement process. [Figure 9] A diagram illustrating the wire movement process. [Modes for carrying out the invention]
[0012] The present invention will be described in detail below with reference to the embodiments shown in the drawings. Note that the left-right direction refers to the left-right direction in Figure 2 (plan view), the front-back direction refers to the left-right direction in Figure 1, and the up-down direction refers to the up-down direction in Figure 1.
[0013] In a first embodiment for implementing the present invention shown in FIGS. 1 to 9, 1 is a slope working vehicle capable of working on a slope 2 with a steep slope, for example, 40 degrees or 45 degrees. The slope working vehicle 1 of the embodiment is suitable for working on a slope 2 with a steep slope of at least 40 degrees or more.
[0014] Specifically, as shown in FIG. 1 in a side view and FIG. 2 in a plan view when FIG. 1 is rotated approximately 90 degrees horizontally to the right, the slope working vehicle 1 includes a work vehicle body 3, a pair of left and right traveling devices 4 provided on the work vehicle body 3, a pair of left and right winches 6 provided on the work vehicle body 3 and each equipped with a wire 5, a pair of left and right winch operation means 7 capable of operating the pair of left and right winches separately, a pair of tension detection means 8 for detecting the relaxation state of the pair of left and right wires 5 respectively, a pair of left and right wire fairleads 9 provided at appropriate positions on the work vehicle body 3 and guiding the respective wires 5 of the pair of left and right winches, a work machine 10 (for example, a hydraulic excavator) rotatably provided on the work vehicle body 3, and an interval displacement means (for example, a spanner) 11 capable of displacing the relative distances between the pair of left and right traveling devices 4 and the wire fairleads 9 in the left and right directions.
[0015] The work vehicle body 3 is provided with traveling devices 4 at its bottom. In this embodiment, as an example of the traveling device 4, endless tracks are used on the left and right. Note that tires may be used as the traveling device 4 instead of the endless tracks 4 of the embodiment.
[0016] This traveling device 4 is displaced in the left and right directions by the operation of the interval displacement means 11 provided on the traveling device 4. When working with the hydraulic excavator 10, by extending the interval displacement means 11 (hereinafter also referred to as "spanner 11"), the distance between the left and right traveling devices 4 becomes longer, and stable work can be performed.
[0017] The work vehicle body 3 is provided with an operator's cab 12, and the operator's cab 12 is provided with winch operation means 7 capable of separately operating the traveling device 4, the spanner 11, and the left and right winches 6, and tension detection means 8 for detecting the slack state of the wire 5.
[0018] In this embodiment, the tension detection means 8 has a pair of notification means 8a for respectively detecting the tension of each wire 5 and notifying the operator in the operator's cab 12. The tension detection means 8 may be configured to cooperate with the winch operation means 7 via a control means or the like to detect the tension of the wire 5 and automatically adjust the tension of the wires 5 provided in the left and right winches 6 to a predetermined tension. In addition to detecting the tension of the wire 5, as the tension detection means 8, for example, a sensor for detecting the slack of the wire 5 or a device such as a reference device whose slack can be visually confirmed may be provided in the operator's cab 12.
[0019] The operator's cab 12 is provided with communication means 13 capable of communicating with the outside (persons not on board the slope work vehicle). The communication means 13 has a transmission and reception function. In this embodiment, the communication means 13 is provided in the operator's cab 12, but a wireless or mobile communication terminal possessed by the operator may also be used as the communication means 13.
[0020] The wire fairleader 9 is provided on the telescopic part 3a provided on the left and right parts of the work vehicle body 3. During work, the telescopic part 3a is extended by the spanner 11, and by increasing the distance in the left - right direction (relative distance) between the left and right wire fairleaders 9, the distance between the left and right wires 5 also becomes longer. Thereby, even when the work machine 10 turns and works, it can work safely and efficiently without interfering with the wire 5.
[0021] The hydraulic excavator 10 is provided on the upper part of the work vehicle body 3. In this embodiment, it is provided on the work vehicle body via angle adjustment means 14 that can make the hydraulic excavator 10 substantially horizontal even on a slope.
[0022] The angle adjustment means 14 consists of a base plate 17 attached to the support base 15 of the work vehicle body 3, with one end via a pivot pin 16 and the other end rotatable in the vertical direction, and a hydraulic cylinder 18 and pantograph 19 provided on the rear side of the base plate 17 that rotate the base plate 17 vertically around the pivot pin 16 as a fulcrum.
[0023] The hydraulic excavator 10 includes a driver's seat 12 mounted on the base plate 17 so as to be able to rotate substantially horizontally via a slewing mechanism 20, a drive arm 21 attached to the front end of the driver's seat 12 (right side in Figure 1, upper side in Figure 2), and a work attachment 22 such as a bucket 22 or breaker 22 that is detachably attached to the tip of the drive arm 21.
[0024] Incidentally, the operating devices and components such as the travel device 4, winch 6, hydraulic excavator 10, and spanner 11 are each driven by the hydraulic pump 23. The engine 24 for operating the hydraulic pump 23 is rotatably mounted at the rear of the work vehicle body 3. By providing the engine 24 in this manner, even when moving along the slope 2, the engine 24 can maintain a nearly horizontal position at all times due to gravity, thereby preventing engine seizure and other problems.
[0025] When performing work on slope 2, the slope work vehicle 1 is positioned at the bottom of slope 2, and the ends of the wires 5 of the left and right winches 6 are fixed to the anchors 25 at the top of the slope in a roughly inverted V shape in plan view (see Figure 5).
[0026] Then, once the wire 5 is secured to the anchor 25, the winch 6 is wound up using the winch operating means 7 near the driver's seat 12, and the travel device 4 is activated to move the slope work vehicle 1 forward. When the vehicle reaches a point where the angle is too steep for the travel device 4 to move, the wire 5 is wound up with the winch 6 to move it forward to the work position.
[0027] Once the slope work vehicle 1 arrives at the work site, the work machine 10 will perform work on the slope. In addition, it will move left and right between the left and right anchors 25 and perform work as needed.
[0028] When performing work on areas to the left or right of the anchor 25, the slope work vehicle is moved in the left or right direction using the movement method 26 of the present invention.
[0029] As shown in Figure 3, the method of moving the slope work vehicle 26 involves connecting one wire 5, provided on the left and right pair of winches 6, to one anchor 25a and the other anchor 25b on the slope 2, respectively, so that they form a roughly inverted V shape in plan view, and moving the slope work vehicle 1, which is positioned on the slope 2 while supported by the one and the other wire 5, approximately vertically downward from the one anchor 25a in a slope work vehicle movement step 27, and loosening the other wire 5 connected to the other anchor 25b, and the one The process comprises: a wire slackening step 28 in which the slope work vehicle is held by only the one wire 5 connected to anchor 25a; a wire movement step 29 in which the other wire 5 is connected to the one anchor 25a; and a wire movement step 30 in which the other wire 5 holds the slope work vehicle 1 and connects the one wire 5 to a third anchor 25c which is provided in the opposite direction to the other anchor 25b and further outward in the left-right direction than the one anchor 25a.
[0030] In the slope work vehicle movement process 27, as shown in Figure 6, if you want to perform work to the right of, for example, the right anchor (one of the anchors 25a) among the left and right anchors 25 as described above, first move the slope work vehicle 1 to approximately vertically below one of the anchors 25a.
[0031] Subsequently, as shown in Figure 7, the other wire slackening process 28 is performed, in which one wire 5 is wound up and the other wire 5 is loosened so that it is not under tension, so that it is suspended only by the wire 5 connected to one anchor 25a (one wire 5). At this time, it is desirable to confirm that there is no tension on the other wire 5 using the tension detection means 8. Alternatively, the other wire 5 may be confirmed to be slack by visual inspection of the work vehicle in the cockpit 12.
[0032] Next, communication is made to an external worker via the communication means 13, and as shown in Figure 8, the other wire 5 is detached from the other anchor 25b and the other wire 5 is connected to the first anchor 25a in a process called the other wire movement process 29. In other words, both the first wire 5 and the other wire 5 are connected to the first anchor 25a to hold the slope work vehicle 1.
[0033] Next, as shown in Figure 9, the wire movement process 30 is performed on one wire. In the wire movement process 30, the other wire 5 is first wound up so that tension is applied to the other wire 5 to hold the slope work vehicle 1, and the one wire 5 is loosened so that there is no tension. At this time, it is desirable to confirm that there is no tension on the one wire 5 using the tension detection means 8, but it is also possible to confirm that the one wire 5 is slack by visually inspecting the work vehicle from the driver's seat 12. After that, communication is made to an external worker using the communication means 13, and the one wire 5 is connected to the third anchor 25c, which is located in the opposite direction to the other anchor 25b and to the left and right outward of the one anchor 25a, thereby completing the lateral movement of the slope work vehicle 1, and allowing work on the slope between the one anchor 25a and the third anchor 25c to be performed. [Industrial applicability]
[0034] This invention is used in industries that manufacture slope work vehicles, which are used to perform various tasks on steep slopes such as embankments, while being towed by a winch wire, and in industries that perform construction work on embankments using slope work vehicles. [Explanation of Symbols]
[0035] 1: Slope work vehicle, 2: Slope, 3: Work vehicle body, 4: Running gear, 5: Wire, 6: Winch 7: Winch operating means, 8: Tension detection means, 9: Wire fairlead, 10: Working machinery, 11: Spacing displacement means, 12: Cockpit, 13: means of communication, 14: means of angle adjustment, 15: Support base, 16: Pivot pin, 17: Base plate, 18: Hydraulic cylinder, 19: Pantograph, 20: Swivel mechanism, 21: Drive arm, 22: Work attachment, 23: Hydraulic pump, 24: Engine, 25: Anchors, 26: Methods for moving slope work vehicles, 27: Slope work vehicle movement process, 28: Other wire slackening process, 29: The other wire movement process, 30: The other wire movement process.
Claims
1. A slope work vehicle comprising a work vehicle body, left and right travel devices provided on the work vehicle body, left and right winches provided on the work vehicle body and each equipped with a wire, winch operating means for independently operating the left and right winches, tension detection means for detecting the slack state of each wire, and a work machine provided on the work vehicle body, wherein the wires provided on the left and right winches can suspend the work vehicle body by either one alone, the work machine is a hydraulic excavator equipped with a driver's seat, and the tension detection means has a pair of notification means for detecting the tension of each wire and notifying the worker in the driver's seat.
2. The slope work vehicle according to claim 1, further comprising left and right wire fairleaders provided on the work vehicle body for guiding the wires of the left and right winches forward from the front of the work vehicle body, and spacing displacement means for displacing the distance between the wire fairleaders in the left-right direction.