Lever-type operating device for specially-equipped vehicle

Abstract

To provide a lever-type operation device of a specially-equipped vehicle, in the specially-equipped vehicle equipped with an installation object displaceably provided on a chassis, that operates the installation object, where the lever-type operation device of the specially-equipped vehicle that can suppress an unintended operation (malfunction) of the installation object even when, for example, an operator's body or the like unexpectedly comes into contact with an operation lever and the operation lever is slightly inclined by the contact.SOLUTION: A lever-type operation device 5 includes: an operation lever 51 that is tiltably provided and is capable of outputting an electrical signal (operation signal) whose output value changes according to a tilt angle; an installation object movable device 52 that moves an installation object 4; and an ECU (control device) 53 that operates the installation object movable device 52 based on the output value of the electrical signal (operation signal) when the output value of the electrical signal (operation signal) exceeds a predetermined threshold value (an ascending-side operation start threshold value (α12) and a descending-side operation start threshold value (α22)).SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a lever-type operating device for a specially equipped vehicle, which is provided with a mounted object having a predetermined function, for operating the mounted object. [Background technology]

[0002] BACKGROUND ART Conventionally, in a specially equipped vehicle having a mounted object having a predetermined function mounted on a chassis, a lever-type operating device for operating the mounted object has been known. For example, Patent Document 1 discloses a body lifting control device (lever-type operating device) for controlling the lifting and lowering operation (displacement operation) of a body (mounted object) consisting of a cargo box mounted on a chassis of a dump truck (specially equipped vehicle).

[0003] In the lever-type operating device disclosed in Patent Document 1, the mounted object provided on the specially equipped vehicle is connected to the chassis so as to be swingable (displaceable) in the vertical direction. In addition, an extendable hydraulic cylinder is provided between the chassis and the mounted object, and this hydraulic cylinder allows the mounted object to swing between a seated position in which it is seated on the chassis and an upright position in which it is upright.

[0004] Here, the hydraulic cylinder is connected to an oil reservoir (oil tank) via a predetermined electronic control valve and a gear pump, etc., and the gear pump is configured to be rotatable using the driving force extracted from the traveling engine by a power take-off device (PTO). In addition, a hoist lever (operating lever) for operating the swinging operation of the mounted object is provided in the driver's cab of the specially equipped vehicle.

[0005] The operating lever is a mechanical operating lever connected to an operating wire, and is provided so as to be tiltable to one side and the other side with a neutral position as a reference. The operator tilts the operating lever to control the electronic control valve, thereby operating the swinging movement of the mounted object (more specifically, the swing (displacement) direction and the movable speed). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-256444 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the conventional lever-type operating device described above, if the operator's body or the like suddenly comes into contact with the operating lever in a state other than when the mounted object is being operated with the operating lever, the contact may cause the operating lever to tilt slightly, and the mounted object may begin to swing (displace) unexpectedly.Therefore, there was a need for measures to prevent unintended operation (malfunction) of the mounted object due to such unexpected contact with the operating lever.

[0008] The present invention has been made in consideration of the current problems described above, and aims to provide a lever-type operating device for a special-purpose vehicle that operates a mounted object on a chassis and the mounted object is displaceable on the chassis, and that is capable of suppressing unintended operation (malfunction) of the mounted object even if, for example, the operator's body or the like suddenly comes into contact with the operating lever and the operating lever is slightly tilted due to the contact. [Means for solving the problem]

[0009] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0010] In other words, the lever-type operating device for a special-purpose vehicle according to aspect 1 of the present invention is a lever-type operating device for a special-purpose vehicle that operates a mounted object on a special-purpose vehicle having a chassis and a mounted object that is displaceably mounted on the chassis, and is characterized in that the lever-type operating device comprises an operating lever that is tiltable and can output an electrical signal whose output value changes depending on the tilt angle, a mounted object moving device that moves the mounted object, and a control device that, when the output value of the electrical signal exceeds a predetermined threshold, activates the mounted object moving device based on the output value of the electrical signal. In this way, in the lever-type operating device for special vehicles of the present invention, the mounted item moving device is activated based on the electrical signal to operate the mounted item only when the output value of the electrical signal output from the operating lever exceeds a predetermined threshold value.Therefore, even if, for example, the operator's body or the like suddenly comes into contact with the operating lever and the operating lever is slightly tilted due to this contact, the operation of the mounted item is prohibited unless the output value of the electrical signal exceeds the threshold value, thereby suppressing unintended operation (malfunction) of the mounted item.

[0011] A lever-type operating device for a specially equipped vehicle according to aspect 2 of the present invention is the same as that of aspect 1, except that the operating lever is tiltable between a neutral position in which the operating lever is in a neutral position, a first maximum tilt position in which the operating lever is inclined to one side relative to the neutral position, and a second maximum tilt position in which the operating lever is inclined to the other side relative to the neutral position, and the output value of the electrical signal is increased or decreased according to the tilt angle relative to the neutral position, and the predetermined threshold value has a first threshold value set between the neutral position and the first maximum tilt position, and a second threshold value set between the neutral position and the second maximum tilt position, and a first operation start position is provided between the neutral position and the first maximum tilt position, at which the output value of the electrical signal becomes the first threshold value, and Between the standing position and the second maximum tilt position, there is provided a second operation start position where the output value of the electrical signal becomes the second threshold value, and when the operating lever is located between the first operation start position and the first maximum tilt position, the control device displaces the mounted object in a first direction, and when the operating lever is located between the second operation start position and the second maximum tilt position, the control device displaces the mounted object in a second direction and increases or decreases the movable speed of the mounted object depending on the tilt angle of the operating lever, and the operating range of the operating lever between the first operation start position and the first maximum tilt position is wider than the operating range of the operating lever between the second operation start position and the second maximum tilt position. By having such a configuration, the lever-type operating device for special vehicles of the present invention, for example, if the mounted object consists of a cargo box that can swing (displace) up and down, and by tilting the operating lever to one side the mounted object swings (displaces) toward an upright position where it is upright relative to the chassis, and by tilting the operating lever to the other side the mounted object swings (displaces) toward a seated position where it is seated relative to the chassis, the mounted object can be seated stably on the chassis. In other words, in the lever-type operating device for special vehicles of the present invention, the operating range of the operating lever between the first operation start position and the first maximum tilt position (the operating range of the operating lever when swinging (displacing) the mounted object toward the standing position; hereinafter referred to as the "standing operation range" where appropriate) is set wider than the operating range of the operating lever between the second operation start position and the second maximum tilt position (the operating range of the operating lever when swinging (displacing) the mounted object toward the seating position; hereinafter referred to as the "seating operation range" where appropriate).Therefore, even if the movable speed of the mounted object increases or decreases depending on the tilt angle of the operating lever, the increase in the movable speed within the seating operation range can be kept low compared to the increase in the movable speed within the standing operation range. In other words, the movable speed of the mounted object when the operating lever is positioned at the second maximum tilt position (the maximum movable speed when the mounted object is swung (displaced) towards the seated position) can be made slower than the movable speed of the mounted object when the operating lever is positioned at the first maximum tilt position (the maximum movable speed when the mounted object is swung (displaced) towards the standing position). Therefore, with the lever-type operating device for special vehicles of the present invention, when the mounted object is swung (displaced) toward the seating position, for example, the movable speed of the mounted object reaches a movable speed equivalent to the maximum movable speed when swung toward the standing position, and it is possible to avoid a situation in which the mounted object collides with the chassis when seated on the chassis and is damaged, and the relatively slow movable speed allows the mounted object to be seated stably on the chassis.

[0012] A lever-type operating device for a specially equipped vehicle according to a third aspect of the present invention is the same as that of the first aspect, except that the operating lever is tiltable between a neutral position in which the operating lever is in a neutral position, a first maximum tilt position in which the operating lever is inclined to one side relative to the neutral position, and a second maximum tilt position in which the operating lever is inclined to the other side relative to the neutral position, and the output value of the electrical signal is increased or decreased according to the tilt angle relative to the neutral position, and the predetermined threshold value has a first threshold value set between the neutral position and the first maximum tilt position, and a second threshold value set between the neutral position and the second maximum tilt ... A first operation start position is provided where the output value becomes the first threshold value, and a second operation start position is provided between the neutral position and the second maximum tilt position where the output value of the electrical signal becomes the second threshold value, and the control device displaces the mounted object in a first direction when the operating lever is located between the first operation start position and the first maximum tilt position, and displaces the mounted object in a second direction when the operating lever is located between the second operation start position and the second maximum tilt position, and the tilt angle of the operating lever at the second operation start position is larger than the tilt angle of the operating lever at the first operation start position. By having such a configuration, the lever-type operating device for special purpose vehicles of the present invention, for example, if the mounted object consists of a cargo box that can swing (displace) in the vertical direction, and by tilting the operating lever to one side the mounted object swings (displaces) toward an upright position where it is upright relative to the chassis, and by tilting the operating lever to the other side the mounted object swings (displaces) toward a seated position where it is seated relative to the chassis, the mounted object can be swung (displaced) toward the seated position while more reliably suppressing unintended operation (malfunction) of the above-mentioned mounted object. In other words, in the lever-type operating device for special vehicles of the present invention, the tilt angle of the operating lever at the second operation start position (the tilt angle of the operating lever at which the mounted object can be swung (displaced) to the seating position) is set to be larger than the tilt angle of the operating lever at the first operation start position (the tilt angle of the operating lever at which the mounted object can be swung (displaced) to the standing position), so when swinging (displacing) the mounted object towards the seating position, the operating lever needs to be tilted deeper than when swinging (displacing) the mounted object towards the standing position. Therefore, for example, even if the operator's body or the like suddenly comes into contact with the operating lever and the contact causes the operating lever to tilt to the other side (the side that causes the mounted object to swing (displace) to a seated position), unintended operation (malfunction) of the mounted object described above can be more reliably suppressed and the mounted object can be seated stably on the chassis compared to when the operating lever is tilted to the first direction side (the side that causes the mounted object to swing (displace) to an upright position).

[0013] A lever-type operating device for a specially equipped vehicle according to aspect 4 of the present invention is the same as that of aspect 1 above, except that the operating lever is tiltable between a neutral position in which the operating lever is in a neutral position, a first maximum tilt position in which the operating lever is inclined to one side relative to the neutral position, and a second maximum tilt position in which the operating lever is inclined to the other side relative to the neutral position, and the output value of the electrical signal is increased or decreased according to the tilt angle relative to the neutral position, and the predetermined threshold value has a first threshold value set between the neutral position and the first maximum tilt position, and a second threshold value set between the neutral position and the second maximum tilt position, and a first operation start position where the output value of the electrical signal becomes the first threshold value is provided between the neutral position and the first maximum tilt position, and A second operation start position is provided at which the signal output value becomes the second threshold value, a predetermined first operation limit position is provided between the neutral position and the first operation start position, and a predetermined second operation limit position is provided between the neutral position and the second operation start position, and the control device displaces the mounted object in a first direction when the operating lever is located between the first operation start position and the first maximum tilt position, and displaces the mounted object in a second direction when the operating lever is located between the second operation start position and the second maximum tilt position, and prohibits movement of the mounted object when the operating lever is located either between the first operation limit position and the first operation start position or between the second operation limit position and the second operation start position. By having such a configuration, the lever-type operating device for special purpose vehicles of the present invention, for example, if the mounted object consists of a cargo box that can swing (displace) in the vertical direction, and by tilting the operating lever to one side the mounted object swings (displaces) toward an upright position where it is upright relative to the chassis, and by tilting the operating lever to the other side the mounted object swings (displaces) toward a seated position where it is seated relative to the chassis, the mounted object can be swung (displaced) toward the upright position or the seated position while more reliably suppressing unintended operation (malfunction) of the above-mentioned mounted object. In other words, in the lever-type operating device for special-purpose vehicles of the present invention, as long as the operating lever is positioned between the first operating limit position and the first operating start position (hereinafter referred to as the "standing-up operation prohibited range" where appropriate), the swinging (displacement) movement of the mounted object toward the standing position is prohibited, and as long as the operating lever is positioned between the second operating limit position and the second operating start position (hereinafter referred to as the "seating operation prohibited range" where appropriate), the swinging (displacement) movement of the mounted object toward the sitting position is prohibited.Therefore, even if, for example, the operator's hand accidentally touches the operating lever and the operating lever is tilted, the movement of the mounted object is prohibited as long as the operating lever is positioned in either the standing-up operation prohibited range or the sitting operation prohibited range, and unintended operation (malfunction) of the mounted object can be more reliably suppressed.

[0014] Furthermore, the lever-type operating device for a special purpose vehicle according to aspect 5 of the present invention is characterized in that, in any of aspects 2 to 4 above, the operating lever, when tilted by the application of an external force, automatically returns to the neutral position when the external force is released. By virtue of this configuration, the lever-type operating device for special-purpose vehicles of the present invention automatically returns to the neutral position when the operator simply removes his or her hand from the operating lever that operates the mounted object, thereby preventing the mounted object from continuing to operate against the operator's wishes. [Effects of the Invention]

[0015] The present invention has the following effects. In other words, with the lever-type operating device for special vehicles of the present invention, even if, for example, the operator's body or the like suddenly comes into contact with the operating lever and the operating lever is slightly tilted due to such contact, unintended operation (malfunction) of the mounted object can be suppressed. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a side view showing the overall configuration of a specially equipped vehicle equipped with a lever-type operating device according to one embodiment of the present invention. [Figure 2]FIG. 2 is a plan view showing the overall configuration of the specially equipped vehicle. [Figure 3] 2A and 2B are diagrams for explaining the configuration of a lever-type operating device. [Figure 4] FIG. 4 is a diagram for explaining the operating range of the operating lever. [Figure 5] FIG. 4 is a diagram for explaining the mounting position of an operating lever in the driver's cab. DETAILED DESCRIPTION OF THE INVENTION

[0017] Next, one embodiment of the present invention will be described with reference to FIGS. For the sake of convenience, in the following description, the front-rear direction, left-right direction, and up-down direction of the specially equipped vehicle 1 will be defined and described using the directions of the arrows shown in FIGS.

[0018] [Overall configuration of special vehicle 1] First, the overall configuration of a specially equipped vehicle 1 equipped with a lever-type operating device 5 embodying the present invention will be described with reference to FIGS. 1 to 3 and 5. FIG.

[0019] The specially equipped vehicle 1 in this embodiment is, for example, a dump truck for transporting earth and sand, and is a work vehicle having a chassis 2 on which an attached object 4 is mounted, which is swung, ie, displaced, in the vertical direction by a hydraulic cylinder 52a1. The configuration of the specially equipped vehicle 1 is not limited to a dump truck, and may be any work vehicle, such as a crane truck or freight vehicle, provided that the mounted article having a predetermined function is mounted on the chassis so that it can swing (displace) up and down or left and right by a hydraulic cylinder. The specially equipped vehicle 1 may also be a work vehicle, such as a vehicle transporter, in which the mounted article having a predetermined function is mounted on the chassis so that it can slide (displace) in the horizontal direction (more specifically, the front-to-rear direction) by a hydraulic cylinder. That is, the movable movement of the mounting member 4 may be any movement such as a swinging movement or a sliding movement, and the movable direction may be any direction such as horizontal, vertical, or diagonal.

[0020] In Figure 1, the specially equipped vehicle 1 mainly comprises a chassis 2 extending in the fore-and-aft direction, a cabin 3 located at the front end of the chassis 2, an attached object 4 that is swingably mounted on the chassis 2, and a lever-type operating device 5 that operates the attached object 4.

[0021] The chassis 2 has a chassis frame 21 made of a rectangular metal frame structure, and a subframe 22 also made of a rectangular metal frame structure and disposed along the upper surface of the chassis frame 21.

[0022] A pair of support shafts 22a are fitted into the rear end portions of the left and right side surfaces of the subframe 22 (since FIG. 1 is a side view, only one support shaft 22a is shown). As will be described later, the subframe 22 is connected to the rear end of the mounted object 4 via the pair of support shafts 22a.

[0023] The cabin 3 constitutes a driver's cab, and is provided at the front end of the chassis frame 21 so as to be able to tilt forward relative to the chassis frame 21.

[0024] The mounted object 4 is a substantially rectangular cargo box with an open top, and has a predetermined function of being able to carry, for example, earth and sand. Under normal conditions (for example, when the specially equipped vehicle 1 is traveling), the mounted object 4 is positioned in a seated state on the upper surface of the subframe 22, and is connected to the subframe 22 at its rear end via a pair of support shafts 22a.

[0025] The mounted object 4 is arranged to be swingable in the vertical direction around a pair of support shafts 22a, 22a, and is configured to be displaceable between a seated position P1 in which the mounted object is seated and an upright position P2 in which the mounted object is substantially upright relative to the chassis 2 (more specifically, the subframe 22).

[0026] The lever-type operating device 5 is an example of a lever-type operating device for a special-purpose vehicle according to the present invention, and comprises an operating lever 51 (see Figure 3) for operating the mounted object 4, an mounted object moving device 52 for moving the mounted object 4, and an ECU 53 (see Figure 3) for controlling the swinging movement of the mounted object 4 based on the operation of the operating lever 51. Furthermore, the lever-type operating device 5 has a battery 54 (see FIG. 3) which is a power source.

[0027] As shown in FIG. 3, the operation lever 51 is electrically connected to the ECU 53, and outputs a predetermined electric signal (hereinafter, referred to as an "operation signal" as appropriate) to the ECU 53. In addition, the operating lever 51 is arranged in the driver's compartment of the cabin 3 (see Figure 1) so as to be tiltable to one side (the side indicated by the arrow X1 in Figure 3) and the other side (the side indicated by the arrow X2 in Figure 3) based on a neutral position Q1, which is a neutral position that is approximately upright with respect to the placement plane Y, and is configured to be able to operate the mounted object 4 by appropriately changing the output value (current value or voltage value) of the above-mentioned electrical signal according to the tilt angle.

[0028] As shown in FIG. 5, in this embodiment, a support member 103 having an "L" shape when viewed from the front is detachably fixed to an A-pillar 102 located in front of the driver's seat 101 using a fastening member such as a bolt, for example, via an assist grip 104, and the operating lever 51 is supported by the support member 103 with the grip portion 51a facing toward the driver's seat 101.

[0029] As shown in Figure 3, the mounted object moving device 52 has a cylinder mechanism unit 52a that swings the mounted object 4, an oil tank 52b in which hydraulic oil is stored, a gear pump 52c that discharges hydraulic oil from the oil tank 52b, and a flow rate control unit 52d that controls the flow rate of the hydraulic oil discharged by the gear pump 52c. The mounted object moving device 52 also has an electric power take-off device (electric PTO) 52e that is a power source for the gear pump 52c.

[0030] As shown in Figures 1 and 2, the cylinder mechanism unit 52a includes a hydraulic cylinder 52a1 that is extendable and contractable in the longitudinal direction in a plan view, a link frame 52a2 that is rotatably connected to one end of the hydraulic cylinder 52a1 (in this embodiment, the tip end of the telescopic rod) at the center in the longitudinal direction, and a pair of tension links 52a3 made of a long rectangular plate-like member and that are rotatably connected at one end (in this embodiment, the rear end) to one end of the link frame 52a2 (in this embodiment, the rear end) and at the other end (in this embodiment, the front end) to the other end of the hydraulic cylinder 52a1 (in this embodiment, the base end of the cylinder tube), and are disposed between the chassis 2 and the mounted object 4.

[0031] The other end of the hydraulic cylinder 52a1 (the base end of the cylinder tube) and the other end (front end) of the pair of tension links 52a3·52a3 are both rotatably supported on the upper surface of the subframe 22 via a pair of first support members 52a4·52a4. The other end (the front end in this embodiment) of the link frame 52a2 is rotatably supported by the lower surface of the mounted object 4 via a pair of second support members 52a5.

[0032] The cylinder mechanism 52a extends the hydraulic cylinder 52a1 to swing the mounted object 4 from the seating position P1 toward the standing position P2, and retracts the hydraulic cylinder 52a1 to swing the mounted object 4 from the standing position P2 toward the seating position P1.

[0033] As shown in FIG. 3, the oil tank 52b is connected to the gear pump 52c via a strainer 52b1, and is also connected to a port (oil passage) on the rod side of the hydraulic cylinder 52a1. As will be described later, the oil tank 52b is connected to a predetermined electronic control valve 52d3 via a flow rate adjustment valve 52d4.

[0034] As shown in FIGS. 1 and 2, the oil tank 52b is disposed on the chassis frame 21 behind the cabin 3 and is supported by the chassis frame 21.

[0035] As shown in FIG. 3, the gear pump 52c is connected on the suction side to the oil tank 52b, and on the discharge side to a port (oil passage) on the head side of the hydraulic cylinder 52a1 via a flow rate control unit 52d.

[0036] As shown in FIGS. 1 and 2, the gear pump 52c is disposed on the inner periphery of the chassis frame 21 near the rear end of the cabin 3 and is supported by the chassis frame 21.

[0037] As shown in FIG. 3, the flow control unit 52d has a check valve 52d1 provided on a first piping member 52f that connects the gear pump 52c and the hydraulic cylinder 52a1, and a filter 52d2, an electronically controlled valve 52d3, and a flow adjustment valve 52d4 that are provided in this order in the flow direction of the hydraulic oil on a second piping member 52g that branches off from the first piping member 52f, and the downstream end of the second piping member 52g in the flow direction is connected to the oil tank 52b. The check valve 52d1 is disposed upstream of the branch point of the second piping member 52g in the flow direction.

[0038] The electronically controlled valve 52d3 is electrically connected to the ECU 53 and is operated based on an electric signal (hereinafter, referred to as an "operation signal" as appropriate) from the ECU 53. This controls the amount of hydraulic oil supplied to the hydraulic cylinder 52a1, and the mounted object 4 (see Figure 1) is moved in a predetermined swing direction (towards the standing position P2 or towards the seating position P1).

[0039] The flow control unit 52d is configured as a unit that integrates these various devices (check valve 52d1, filter 52d2, electronic control valve 52d3, and flow adjustment valve 52d4), and is placed on the chassis frame 21 behind the cabin 3 and supported by the chassis frame 21, as shown in Figures 1 and 2.

[0040] The electric power take-off device 52e incorporates an electric motor and is electrically connected to the ECU 53 as shown in FIG. The electric power take-off device 52e is mechanically connected to the gear pump 52c and is configured to be able to transmit driving force to the gear pump 52c.

[0041] The electric power take-off device 52e is configured to control the driving force of the electric motor based on an operation signal from the ECU 53, and changes the driving force transmitted to the gear pump 52c to control the amount of hydraulic oil discharged by the gear pump 52c. This controls the moving speed of the equipment 4 during swinging motion.

[0042] As described above, in conventional special purpose vehicles, the gear pump is generally driven by using the driving force extracted from the traveling engine by a mechanical power take-off device (PTO). However, in the special purpose vehicle 1 of this embodiment, the gear pump 52c is driven directly by the electric power take-off device 52e, without requiring the driving force of the traveling engine.

[0043] As shown in FIGS. 1 and 2, the electric power take-off device 52e is disposed below the cabin 3 on the inner periphery of the chassis frame 21 adjacent to the gear pump 52c, and is supported by the chassis frame 21.

[0044] Incidentally, the positions of the oil tank 52b, gear pump 52c, flow control unit 52d, and electric power take-off device 52e that constitute the mounted object moving device 52 are not limited to this embodiment, but are set appropriately according to the overall layout of the special vehicle 1. Furthermore, the oil tank 52b, the gear pump 52c, the flow rate control section 52d, and the electric power take-off device 52e may not be provided individually, but may be configured as an integrated unit.

[0045] The ECU 53 (see FIG. 3) is an example of a control device according to the present invention. The ECU 53 includes an arithmetic processing unit configured by a CPU (Central Processing Unit), a memory unit configured by a ROM (Read Only Memory), RAM (Random Access Memory), HDD (Hard Disk Drive), etc., and the memory unit pre-stores a program for controlling the swinging motion of the mounted object 4 based on the operation of the operating lever 51, various threshold values ​​(threshold values ​​related to the electrical signal transmitted from the operating lever 51) described later, etc.

[0046] The ECU 53 is located in the driver's compartment of the cabin 3 and performs calculations using a predetermined program based on the output value of an electrical signal (operation signal) sent from the operating lever 51, and based on the calculation results, sends a predetermined electrical signal (operation signal) to the gear pump 52c and the electronic control valve 52d3 to operate the mounted object moving device 52 (more specifically, the hydraulic cylinder 52a1) and control the swinging movement of the mounted object 4.

[0047] In addition, the ECU 53 may be provided separately as a dedicated control device in the lever-type operating device 5, specialized for the swinging operation of the mounted object 4, or may be provided as a control device that controls the overall operation of the specially equipped vehicle 1, including other operations in the specially equipped vehicle 1 (operations other than the swinging operation of the mounted object 4).

[0048] As shown in FIG. 3, the battery 54 is electrically connected to the ECU 53, and supplies power via the ECU 53 to the operating lever 51, the electric power take-off device 52e, and the electronically controlled valve 52d3. The battery 54 may be provided separately as a dedicated power source for the lever-type operation device 5, or may be provided as a power source for the entire specially equipped vehicle 1.

[0049] As shown in FIG. 2, the battery 54 is disposed outside the chassis frame 21 near the rear end of the cabin 3 and is supported by the chassis frame 21.

[0050] [Method of operating the equipment 4 using the lever-type operating device 5] Next, a method for operating the mounted object 4 using the lever-type operating device 5 will be described in detail with reference to FIG.

[0051] As described above, the operating lever 51 is tiltable toward one side (the direction of arrow X1) and the other side (the direction of arrow X2) based on the neutral position Q1, which is a substantially upright neutral posture. Specifically, the operating lever 51 is tiltable between a neutral position Q1, an upward maximum tilt position Q2 in which the operating lever 51 is tilted to one side (the arrow X1 side) relative to the neutral position, and a downward maximum tilt position Q3 in which the operating lever 51 is tilted to the other side (the arrow X2 side) relative to the neutral position.

[0052] The above-mentioned upward maximum tilt position Q2 is an example of a first maximum tilt position according to the present invention, and the above-mentioned downward maximum tilt position Q3 is an example of a second maximum tilt position according to the present invention.

[0053] The operating lever 51 outputs a predetermined electric signal (operating signal) to the ECU 53 (see FIG. 3) when tilted between the neutral position Q1 and the maximum tilt position Q2 on the ascending side. Upon receiving the operation signal, the ECU 53 outputs a predetermined electric signal (operation signal) to the electric power take-off device 52e (see FIG. 3) and the electronic control valve 52d3 based on the output value of the operation signal, thereby swinging the mounted object 4 (see FIG. 1) from the seating position P1 toward the standing position P2.

[0054] Furthermore, the operating lever 51 outputs a predetermined electric signal (operating signal) to the ECU 53 when tilted between the neutral position Q1 and the maximum downward tilt position Q3. Upon receiving the operation signal, the ECU 53 outputs a predetermined electrical signal (operation signal) to the electric power take-off device 52e and the electronic control valve 52d3 based on the output value of the operation signal, thereby swinging the mounted object 4 from the standing position P2 toward the seating position P1.

[0055] For convenience in the following explanation, the swinging motion of the equipment 4 from the seating position P1 toward the standing position P2 may be referred to as the "ascending motion," and the swinging motion of the equipment 4 from the standing position P2 toward the seating position P1 may be referred to as the "descending motion." Furthermore, in the mounting structure 4, the direction from the seating position P1 toward the standing position P2 is an example of the "first direction" according to the present invention, and the direction from the standing position P2 toward the seating position P1 is an example of the "second direction" according to the present invention.

[0056] When the operating lever 51 is positioned in the neutral position Q1, it outputs an operating signal consisting of a predetermined output value (voltage value or current value) that has been set in advance, and when tilted to one side (arrow X1 side), the output value of the operating signal increases linearly as the tilt angle increases, and when tilted to the other side (arrow X2 side), the output value of the operating signal decreases linearly as the tilt angle increases.

[0057] Then, based on the output value of the operation signal from the operation lever 51, the ECU 53 determines the position (tilting direction and tilting angle) of the operation lever 51 and causes the mounted object 4 to perform a predetermined swinging operation (raising operation or lowering operation).

[0058] Incidentally, within the operating range of the operating lever 51, an upward operation limit position Q11 and an upward operation start position Q12 are pre-set between the neutral position Q1 and the upward maximum tilt position Q2, positioned in order toward one side (the arrow X1 side). In other words, a predetermined ascending-side operation limiting position Q11 is provided between the neutral position Q1 and the ascending-side operation starting position Q12.

[0059] Further, between the neutral position Q1 and the downward-side maximum tilt position Q3, a downward-side operation limit position Q21 and a downward-side operation start position Q22 are set in advance, positioned in that order toward the other side (arrow X2 side). In other words, a predetermined downward operation limit position Q21 is provided between the neutral position Q1 and the downward operation start position Q22.

[0060] The above-mentioned upward operation limiting position Q11 is an example of a first operation limiting position according to the present invention, and the above-mentioned downward operation limiting position Q21 is an example of a second operation limiting position according to the present invention. Furthermore, the above-mentioned upward operation start position Q12 is an example of a first operation start position according to the present invention, and the above-mentioned downward operation start position Q22 is an example of a second operation start position according to the present invention.

[0061] On the other hand, the memory section of the ECU 53 pre-stores an upward operation limit threshold value (α11) corresponding to the output value of the operation signal output from the operating lever 51 when the operating lever 51 is positioned at the upward operation limit position Q11, and an upward operation start threshold value (α12) corresponding to the output value of the operation signal output from the operating lever 51 when the operating lever 51 is positioned at the upward operation start position Q12. In addition, the memory section of the ECU 53 pre-stores a threshold value (α21) for limiting operation on the downward side, which corresponds to the output value of the operation signal output from the operating lever 51 when the operating lever 51 is positioned at the downward operation limit position Q21, and a threshold value (α22) for starting operation on the downward side, which corresponds to the output value of the operation signal output from the operating lever 51 when the operating lever 51 is positioned at the downward operation start position Q22.

[0062] The above-mentioned rising side operation start threshold value (α12) is an example of a first threshold value according to the present invention, and the above-mentioned falling side operation start threshold value (α22) is an example of a second threshold value according to the present invention. In addition, the various thresholds consisting of the upward side operation limit threshold (α11), the upward side operation start threshold (α12), the downward side operation limit threshold (α21), and the downward side operation start threshold (α22) are each set within the range of output values ​​of the electrical signal (operation signal) that can be output by the operating lever 51.

[0063] The operating range of the operating lever 51 is divided by the ECU 53 into the following multiple areas (neutral area S1, upward side invalid area S2, upward side operating area S3, downward side invalid area S4, and downward side operating area S5) based on these multiple thresholds (upward side operation limit threshold (α11), upward side operation start threshold (α12), downward side operation limit threshold (α21), and downward side operation start threshold (α22)).

[0064] That is, the neutral area S1 is located between the upward operation limiting position Q11 and the downward operation limiting position Q21, and is an area including the neutral position Q1, in which the swinging operation (upward operation and downward operation) of the equipment 4 is prohibited. When the operating lever 51 is positioned within the range of the neutral area S1, the ECU 53 prohibits the swinging operation of the mounted object 4 based on the output value of the operation signal from the operating lever 51.

[0065] In addition, the ascending side invalid area S2 is an area located between the ascending side operation limit position Q11 and the ascending side operation start position Q12, and like the neutral area S1, is an area in which the swinging operation (ascending operation) of the equipment 4 is prohibited. When the operating lever 51 is positioned within the ascending-side invalid area S2, the ECU 53 prohibits the swinging operation of the mounted object 4 based on the output value of the operation signal from the operating lever 51.

[0066] Furthermore, the descending side invalid area S4 is an area located between the descending side operation limit position Q21 and the descending side operation start position Q22, and is an area in which the swinging operation (descending operation) of the equipment 4 is prohibited, similar to the neutral area S1. When the operating lever 51 is located within the lowering-side invalid area S4, the ECU 53 prohibits the swinging operation (lowering operation) of the mounted object 4 based on the output value of the operation signal from the operating lever 51.

[0067] Note that a difference between the neutral area S1 and the ascending side invalid area S2 and the descending side invalid area S4 is that, for example, if a locking mechanism or the like is provided on the operating lever 51, the locking mechanism may be able to be released within the neutral area S1, but may not be able to be released within the ascending side invalid area S2 and the descending side invalid area S4.

[0068] On the other hand, the rising-side operation area S3 is an area located between the rising-side operation start position Q12 and the rising-side maximum tilt position Q2, and is an area in which the raising operation of the mounted object 4 is possible. When the operating lever 51 is positioned within the range of the ascending side operation area S3 (i.e., between the ascending side operation start position Q12 and the ascending side maximum tilt position Q2), the ECU 53 swings (displaces) the mounted object 4 in the first direction, i.e., the ascending operation side, based on the output value of the operation signal from the operating lever 51.

[0069] Specifically, the ECU 53 increases or decreases the movable speed of the mounted object 4 in accordance with an increase or decrease in the output value of the operation signal (i.e., the tilt angle of the operating lever 51), while executing the lifting operation of the mounted object 4. In other words, the movable speed can be adjusted in accordance with the tilt angle of the operating lever 51, and as the tilt angle increases, the movable speed also increases. In other words, when the output value of the operation signal output from the operating lever 51 increases beyond the threshold value (α12) for starting the operation on the rising side, the ECU 53 activates the mounted object moving device 52 (see Figure 3) based on the output value of the electrical signal, and performs the raising operation of the mounted object 4.

[0070] The lowering side operation area S5 is an area located between the lowering side operation start position Q22 and the lowering side maximum tilt position Q3, and is an area in which the lowering operation of the mounted object 4 is possible. When the operating lever 51 is positioned within the range of the lowering side operating area S5 (i.e., between the lowering side operation start position Q22 and the lowering side maximum tilt position Q3), the ECU 53 swings the body 4 in the second direction, i.e., the lowering operation side, based on the output value of the operating signal from the operating lever 51.

[0071] Specifically, the ECU 53 switches the electronic control valve 52d3 based on the output value of the operation signal to open the hydraulic oil in the hydraulic cylinder 52a1, thereby performing the lowering operation of the mounted object 4 by its own weight. In other words, when the output value of the operation signal output from the operating lever 51 decreases beyond the threshold value (α22) for starting the lowering side operation, the ECU 53 activates the mounted object moving device 52 (see Figure 3) based on the output value of the electrical signal, and performs the lowering operation of the mounted object 4.

[0072] In addition, in the lowering side operating area S5, similar to the upper side operating area S3, the ECU 53 may be configured to perform the lowering operation of the mounted object 4 while increasing or decreasing the movable speed of the mounted object 4 according to the increase or decrease in the output value of the operation signal (i.e., the tilt angle of the operating lever 51).

[0073] In this way, in this embodiment, the operating lever 51 is tilted until it reaches the upward operating area S3, and the output value of the operating signal output from the operating lever 51 increases beyond the threshold value for starting the upward operation (α12), thereby executing the upward operation of the equipment 4. However, unless the output value of the operating signal output from the operating lever 51 exceeds the threshold value for starting the upward operation (α12), the upward operation of the equipment 4 is prohibited even if the operating lever is tilted slightly. In addition, when the operating lever 51 is tilted until it reaches the lowering side operating area S5 and the output value of the operating signal output from the operating lever 51 decreases beyond the threshold value for starting lowering side operation (α22), the lowering operation of the mounted object 4 is executed, but unless the output value of the operating signal output from the operating lever 51 exceeds the threshold value for starting lowering side operation (α22), the lowering operation of the mounted object 4 is prohibited even if the operating lever is tilted slightly.

[0074] The operating lever 51 is biased by a built-in biasing member (not shown) or the like so that it is always held in the neutral position Q1. For example, if the operating lever 51 is tilted by an external force applied by manual operation by an operator, when the external force is released, the biasing member immediately and automatically returns the operating lever to the neutral position Q1.

[0075] By virtue of this configuration, in the specially equipped vehicle 1 of this embodiment (see Figure 1), simply by removing the operator's hand from the operating lever 51 that operates the mounted object 4, the operating lever 51 automatically returns to the neutral position Q1, thereby preventing the mounted object 4 from continuing to operate against the operator's intention.

[0076] The ascending-side invalid area S2 is not limited to this embodiment and may be eliminated. In this case, when the operating lever 51 is tilted to one side beyond the neutral area S1, the lifting operation of the equipment 4 is immediately started, thereby improving the operability of the operating lever 51.

[0077] In addition, the upward operation limit position Q11 where the upward invalid area S2 starts and / or the downward operation limit position Q21 where the downward invalid area S4 starts may be replaced by the neutral position Q1 (i.e., the neutral position Q1 may be set as the upward operation limit position Q11 and / or the downward invalid area S4). Furthermore, the upward operation limiting position Q11 and the downward operation limiting position Q21 may be provided within a range in which the operating lever 51 outputs an electric signal (operation signal).

[0078] Incidentally, within the operating range of the operating lever 51, the maximum tilt position Q2 on the upward side and the maximum tilt position Q3 on the downward side are set at positions where the tilt angles of the operating lever 51 are equal to each other toward one side (arrow X1 side) and the other side (arrow X2 side) based on the neutral position Q1.

[0079] Regarding the distribution of the operating ranges of each of the above-mentioned areas (neutral area S1, upward invalid area S2, upward operating area S3, downward invalid area S4, and downward operating area S5), for example, the operating range of the neutral area S1 is set to approximately 10%, the operating range of the upward invalid area S2 is set to approximately 5%, the operating range of the upward operating area S3 is set to approximately 41%, the operating range of the downward invalid area S4 is set to approximately 17%, and the operating range of the downward operating area S5 is set to approximately 27% of the overall operating range S between the upward maximum tilt position Q2 and the downward maximum tilt position Q3. The operating range of the neutral area S1 is set so as to spread equally toward one side (arrow X1 side) and the other side (arrow X2 side) with the neutral position Q1 as the reference.

[0080] Here, the operating range of the upward-side invalid area S2 is set narrower than the operating range of the downward-side invalid area S4, and the operating range of the upward-side operating area S3, which is located between the upward-side operation start position Q12 and the upward-side maximum tilt position Q2, is set wider than the operating range of the downward-side operating area S5, which is located between the downward-side operation start position Q22 and the downward-side maximum tilt position Q3. As a result, when raising the mounted object 4, the swinging action can be started more immediately than when lowering it, and in the rising side operating area S3, which has a sufficient operating range, the movable speed can be changed while adjusting the tilt angle of the operating lever 51, and the raising action of the mounted object 4 can be performed while creating a clear distinction between the high-speed and low-speed areas of the movable speed.

[0081] In addition, since the operating range of the downward side invalid area S4 is set narrower than the operating range of the upward side invalid area S2, the tilt angle of the operating lever 51 at the downward side operation start position Q22 is set larger than the tilt angle of the operating lever 51 at the upward side operation start position Q12. As a result, as described above, in the descending side operating area S5, the descending operation of the mounted object 4 is carried out by its own weight without any adjustment of the moving speed, but by simply lightly touching the operating lever 51, the descending operation of the mounted object 4 is prevented from being carried out immediately, and the operating lever 51 is reliably tilted to the descending side operation start position Q22, so that the descending operation of the mounted object 4 can be carried out stably.

[0082] In addition, the timing at which the ascending operation of the mounting structure 4 starts and the timing at which the descending operation starts may be the same, and the distribution of the operating ranges of the ascending side invalid area S2 and the descending side invalid area S4 may be equal to each other.

[0083] As described above, the lever-type operating device 5 in this embodiment is a lever-type operating device for a specially equipped vehicle 1 that has a chassis 2 and an attached object 4 that is arranged on the chassis 2 in a manner that allows it to swing (displace). The lever-type operating device 5 is equipped with an operating lever 51 that is tiltable and can output an electrical signal (operation signal) whose output value changes depending on the tilt angle, an equipment moving device 52 that moves the equipment 4, and an ECU (control device) 53 that operates the equipment moving device 52 based on the output value of the electrical signal (operation signal) when the output value of the electrical signal (operation signal) exceeds predetermined threshold values ​​(threshold value for starting operation on the ascending side (α12) and threshold value for starting operation on the descending side (α22)).

[0084] In this way, in the lever-type operating device 5 of this embodiment, the mounted object moving device 52 is activated based on the electrical signal (operation signal) to operate the mounted object 4 only when the output value of the electrical signal (operation signal) output from the operating lever 51 exceeds a predetermined threshold value (threshold value for starting operation on the ascending side (α12) and threshold value for starting operation on the descending side (α22)).Therefore, even if, for example, the operator's body or the like suddenly comes into contact with the operating lever 51 and the operating lever 51 is slightly tilted due to this contact, the operation of the mounted object 4 is prohibited unless the output value of the electrical signal (operation signal) exceeds the threshold value, thereby suppressing unintended operation (malfunction) of the mounted object 4.

[0085] Furthermore, in the lever-type operating device 5 of this embodiment, the operating lever 51 is tiltable between a neutral position Q1, which is a neutral posture, an upward maximum tilt position (first maximum tilt position) Q2, which is a posture tilted to one side (arrow X1 side) from the neutral posture, and a downward maximum tilt position (second maximum tilt position) Q3, which is a posture tilted to the other side (arrow X2 side) from the neutral posture, and is configured to increase or decrease the output value of an electrical signal (operating signal) depending on the tilt angle from the neutral posture.

[0086] Here, the above-mentioned predetermined thresholds include an ascending side operation start threshold (α12) (first threshold) set between the neutral position Q1 and the ascending side maximum tilt position (first maximum tilt position) Q2, and a descending side operation start threshold (α22) (second threshold) set between the neutral position Q1 and the descending side maximum tilt position (second maximum tilt position) Q3.

[0087] Between the neutral position Q1 and the maximum tilt position (first maximum tilt position) Q2 on the upward side, there is provided an upward side operation start position (first operation start position) Q12 where the output value of the electrical signal (operation signal) becomes the threshold value (α12) (first threshold value) for starting the upward side operation. In addition, between the neutral position Q1 and the downward maximum tilt position (second maximum tilt position) Q3, there is provided a downward operation start position (second operation start position) Q22 where the output value of the electrical signal (operation signal) becomes the downward operation start threshold value (α22) (second threshold value).

[0088] On the other hand, when the operating lever 51 is positioned between the ascending side operation start position (first operation start position) Q12 and the ascending side maximum tilt position (first maximum tilt position) Q2, the ECU (control device) 53 swings (displaces) the mounted object 4 in the first direction (ascending operation side), and when the operating lever 51 is positioned between the descending side operation start position (second operation start position) Q22 and the descending side maximum tilt position (second maximum tilt position) Q3, the ECU (control device) 53 swings (displaces) the mounted object 4 in the second direction (descending operation side) and increases or decreases the movable speed of the mounted object 4 depending on the tilt angle of the operating lever 51.

[0089] The operating range of the operating lever 51 between the upward operation start position (first operation start position) Q12 and the upward maximum tilt position (first maximum tilt position) Q2 (i.e., the operating range of the upward operation area S3) is set to be wider than the operating range of the operating lever 51 between the downward operation start position (second operation start position) Q22 and the downward maximum tilt position (second maximum tilt position) Q3 (i.e., the operating range of the downward operation area S4).

[0090] With this configuration, the lever-type operation device 5 of this embodiment allows the mounted object 4 to be seated stably on the chassis 2.

[0091] That is, in the lever-type operating device 5 of this embodiment, the operating range of the operating lever 51 between the ascending side operation start position (first operation start position) Q12 and the ascending side maximum tilt position (first maximum tilt position) Q2 (i.e., the operating range of the ascending side operating area S3) is set wider than the operating range of the operating lever 51 between the descending side operation start position (second operation start position) Q22 and the descending side maximum tilt position (second maximum tilt position) Q3 (i.e., the operating range of the descending side operating area S5).Therefore, for example, as described above, even if the movable speed of the mounted object 4 during the descending operation is increased or decreased depending on the tilt angle of the operating lever 51 instead of the descending operation due to its own weight in the descending side operating area S5, the increase in the movable speed within the operating range of the descending side operating area S5 can be kept low compared to the increase in the movable speed within the operating range of the ascending side operating area S3. In other words, the movable speed of the equipment 4 when the operating lever 51 is positioned at the maximum tilt position on the ascending side (first maximum tilt position) Q2 (maximum movable speed of the equipment 4 during ascending operation) can be made slower than the movable speed of the equipment 4 when the operating lever 51 is positioned at the maximum tilt position on the descending side (second maximum tilt position) Q3.

[0092] Therefore, according to the lever-type operating device 5 of this embodiment, when the mounted object 4 is swung (displaced (downward movement)) toward the seating position P1, for example, the movable speed of the mounted object 4 reaches a movable speed equivalent to the maximum movable speed when swung (displaced (upward movement)) toward the above-mentioned standing position P2, and it is possible to avoid a situation in which the mounted object 4 collides with the chassis 2 when seated on the chassis 2 and is damaged, and the relatively slow movable speed allows the mounted object 4 to be seated stably on the chassis 2.

[0093] Furthermore, in the lever-type operating device 5 of this embodiment, the tilt angle of the operating lever 51 at the downward operation start position (second operation start position) Q22 is set to be larger than the tilt angle of the operating lever 51 at the upward operation start position (first operation start position) Q12.

[0094] By having such a configuration, the lever-type operating device 5 in this embodiment can more reliably suppress unintended operation (malfunction) of the mounted object 4 while swinging (displacing ((lowering operation)) the mounted object 4 toward the seating position P1.

[0095] That is, in the lever-type operating device 5 of this embodiment, the tilt angle of the operating lever 51 at the lowering side operation start position (second operation start position) Q22 (the tilt angle of the operating lever 51 at which the lowering operation of the mounted object 4 becomes possible) is set to be larger than the tilt angle of the operating lever 51 at the uppering side operation start position (first operation start position) Q12 (the tilt angle of the operating lever 51 at which the raising operation of the mounted object 4 becomes possible). Therefore, when swinging (displacing ((lowering operation))) the mounted object 4 toward the seating position P1, it is necessary to tilt the operating lever 51 more deeply than when swinging (displacing ((raising operation))) the mounted object 4 toward the standing position P2.

[0096] Therefore, even if the operator's body or the like suddenly comes into contact with the operating lever 51 and the contact causes the operating lever 51 to tilt to the other side (towards arrow X2), unintended operation (malfunction) of the above-mentioned mounted object 4 can be more reliably suppressed than if the lever were tilted to one side (towards arrow X1), and the mounted object 4 can be seated stably on the chassis 2.

[0097] Furthermore, in the lever-type operating device 5 of this embodiment, a predetermined upward operation limiting position (first operation limiting position) Q11 is provided between the neutral position Q1 and the upward operation start position (first operation start position) Q12, and a predetermined downward operation limiting position (second operation limiting position) Q21 is provided between the neutral position Q1 and the downward operation start position (second operation start position) Q22.

[0098] The ECU (control device) 53 is configured to prohibit the swing (displacement) operation of the mounted object 4 when the operating lever 51 is positioned either between the upward operation limit position (first operation limit position) Q11 and the upward operation start position (first operation start position) Q12, or between the downward operation limit position (second operation limit position) Q21 and the downward operation start position (second operation start position) Q22.

[0099] By having such a configuration, the lever-type operating device 5 in this embodiment can more reliably suppress unintended operation (malfunction) of the mounted object 4 while swinging (displacing) the mounted object 4 toward the standing position P2 or the seating position P1.

[0100] That is, in the lever-type operating device 5 in this embodiment, as long as the operating lever 51 is positioned between the ascending side operation limit position (first operation limit position) Q11 and the ascending side operation start position (first operation start position) Q12 (i.e., the ascending side invalid area S2), the swing (displacement) operation (raising operation) of the equipment 4 toward the standing position P2 is prohibited, and further, between the descending side operation limit position (second operation limit position) Q21 and the descending side operation start position (second operation start position) Q22 (i.e., the descending side invalid area S2). As long as the operating lever 51 is positioned in the upper ineffective area S2 or the lower ineffective area S4, the swinging (displacement) movement (lowering movement) of the mounted object 4 toward the seating position P1 is prohibited. Therefore, even if the operator's hand accidentally touches the operating lever 51 and the operating lever 51 is tilted, the movement of the mounted object 4 is prohibited as long as the operating lever 51 is positioned in either the upper ineffective area S2 or the lower ineffective area S4, and unintended movement (malfunction) of the mounted object 4 can be more reliably suppressed.

[0101] The above describes one embodiment of the present invention, but the present invention is not limited to such an embodiment, which is merely an example, and it goes without saying that the present invention can be embodied in various other forms without departing from the gist of the present invention. The scope of the present invention is indicated by the claims, and further includes the meaning of equivalents set forth in the claims, and all modifications within the scope of the claims. [Explanation of symbols]

[0102] 1 Specially equipped vehicle 2 chassis 4 Bodywork 5 Bodywork operation mechanism 51 Operating lever 52 Bodywork movable device 53 ECU (control unit) Q1 Neutral position Q11 Upward operating limit position (first operating limit position) Q12 Rising side operation start position (first operation start position) Q2 Maximum tilting position on the rising side (1st maximum tilting position) Q21 Downward operating limit position (second operating limit position) Q22 Lowering side operation start position (second operation start position) Q3 Maximum tilting position on the descending side (2nd maximum tilting position) α12 Rising side activation start threshold (first threshold) α22 Downward side activation start threshold (second threshold)

Claims

1. A lever-type operating device for a specially equipped vehicle that operates a mounted object in a specially equipped vehicle having a chassis and a mounted object that is displaceable on the chassis, The lever-type operating device is an operating lever that is tiltable and can output an electrical signal whose output value changes depending on the tilt angle; A mounting object moving device that moves the mounting object; When the output value of the electrical signal exceeds a predetermined threshold, a control device is provided that operates the mounted object moving device based on the output value of the electrical signal. A lever-type operating device for specially equipped vehicles.

2. The operating lever is a neutral position, which is a neutral posture; The seat belt is tiltable between a first maximum tilt position in which the seat belt is tilted to one side relative to the neutral position and a second maximum tilt position in which the seat belt is tilted to the other side relative to the neutral position, increasing or decreasing the output value of the electrical signal according to the tilt angle relative to the neutral position; The predetermined threshold value is a first threshold value set between the neutral position and the first maximum tilt position; and a second threshold value set between the neutral position and the second maximum tilt position; a first operation start position where the output value of the electrical signal becomes the first threshold value is provided between the neutral position and the first maximum tilt position; a second operation start position where the output value of the electrical signal becomes the second threshold value is provided between the neutral position and the second maximum tilt position; The control device When the operating lever is located between the first operation start position and the first maximum tilt position, the mounted object is displaced in a first direction, When the operating lever is located between the second operation start position and the second maximum tilt position, the mounted object is displaced in a second direction, The movable speed of the mounted object is increased or decreased according to the tilt angle of the operating lever, a movement range of the operating lever between the first operation start position and the first maximum tilt position is wider than a movement range of the operating lever between the second operation start position and the second maximum tilt position; 2. The lever-type operating device for a specially equipped vehicle according to claim 1.

3. The operating lever is a neutral position, which is a neutral posture; The seat belt is tiltable between a first maximum tilt position in which the seat belt is tilted to one side relative to the neutral position and a second maximum tilt position in which the seat belt is tilted to the other side relative to the neutral position, increasing or decreasing the output value of the electrical signal according to the tilt angle relative to the neutral position; The predetermined threshold value is a first threshold value set between the neutral position and the first maximum tilt position; and a second threshold value set between the neutral position and the second maximum tilt position; a first operation start position where the output value of the electrical signal becomes the first threshold value is provided between the neutral position and the first maximum tilt position; a second operation start position where the output value of the electrical signal becomes the second threshold value is provided between the neutral position and the second maximum tilt position; The control device When the operating lever is located between the first operation start position and the first maximum tilt position, the mounted object is displaced in a first direction, When the operating lever is located between the second operation start position and the second maximum tilt position, the mounted object is displaced in a second direction, a tilt angle of the operating lever at the second operation start position is larger than a tilt angle of the operating lever at the first operation start position; 2. The lever-type operating device for a specially equipped vehicle according to claim 1.

4. The operating lever is a neutral position, which is a neutral posture; The seat belt is tiltable between a first maximum tilt position in which the seat belt is tilted to one side relative to the neutral position and a second maximum tilt position in which the seat belt is tilted to the other side relative to the neutral position, increasing or decreasing the output value of the electrical signal according to the tilt angle relative to the neutral position; The predetermined threshold value is a first threshold value set between the neutral position and the first maximum tilt position; and a second threshold value set between the neutral position and the second maximum tilt position; a first operation start position where the output value of the electrical signal becomes the first threshold value is provided between the neutral position and the first maximum tilt position; a second operation start position where the output value of the electrical signal becomes the second threshold value is provided between the neutral position and the second maximum tilt position; A predetermined first operation limiting position is provided between the neutral position and the first operation starting position, a predetermined second operation limit position is provided between the neutral position and the second operation start position, The control device When the operating lever is located between the first operation start position and the first maximum tilt position, the mounted object is displaced in a first direction, When the operating lever is located between the second operation start position and the second maximum tilt position, the mounted object is displaced in a second direction, When the operating lever is positioned between the first operation limit position and the first operation start position, or between the second operation limit position and the second operation start position, movement of the mounted object is prohibited.

2. The lever-type operating device for a specially equipped vehicle according to claim 1.

5. The operating lever is When an external force is applied and the structure is tilted, When the external force is released, the actuator automatically returns to the neutral position. The lever-type operating device for a specially equipped vehicle according to any one of claims 2 to 4.

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