JP6535471B2 - Outrigger device for construction machine - Google Patents

Description

  The present invention relates to an outrigger apparatus that controls the operation of an outrigger that supports the body of a construction machine by being grounded to the ground.

  Patent Document 1 discloses an outrigger device that controls the operation of an outrigger that supports a vehicle body by being grounded to the ground. In this outrigger device, a plurality of (generally four) outriggers are provided. Each outrigger is provided with an extendable beam and an extendable jack. Further, the outrigger device is provided with an operation unit to which an operation for operating the outrigger is input. The operation unit includes a first operation input unit for inputting an operation for selecting an outrigger to be operated, and a second operation input for selecting an operation of the beam or a jack at the outrigger A third operation input unit is provided to receive an operation for selecting whether the extension operation or the contraction operation is performed in the outrigger. The first operation input unit functions as a momentary switch (automatic return switch), and the second operation input unit and the third operation input unit function as an alternate switch (self-holding switch).

  When activating the outrigger, select extension operation or contraction operation by the operation input (pressing) at the third operation input unit, and operate the beam by the operation input (pressing) at the second operation input unit Or select whether to operate the jack. Then, the outrigger to be operated is selected by the operation input (press) at the first operation input unit, and the selected outrigger is operated. That is, when operating the outrigger, the operation input is performed in the order of the third operation input unit, the second operation input unit, and the first operation input unit, and the first operation input unit that functions as a momentary switch Then, the operation input is performed last among the three types of operation input units.

Japanese Patent Application Publication No. 2003-327095

  In a construction machine such as a crane, as in Patent Document 1, a model in which the outrigger is actuated by performing operation input in the order of the third operation input unit, the second operation input unit, and the first operation input unit. In some cases, there is also a model in which the outrigger is actuated by performing operation input in an order different from that of the patent document 1. And in any model, one of the first operation input unit, the second operation input unit, and the third operation input unit functions as a momentary switch, and the operation input unit that functions as a momentary switch is the last one. Operation input is performed. Here, for the operator who is accustomed to the model that operates the outrigger by performing the operation input in a different order from the patent document 1, the outrigger is performed by performing the operation input in the same order as the patent document 1. In the model to be operated, it becomes difficult to perform the operation of operating the outrigger. Further, in a model in which the outrigger is operated by performing the operation input in the same order as the patent document 1, when the operation input is performed in the order different from the patent document 1, there is a possibility that the outrigger is not properly operated. There is.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an outrigger device in which an outrigger is appropriately operated regardless of the order in which operation inputs are performed in three types of operation input units. It is to provide.

In order to achieve the above object, an outrigger device of a crane according to an aspect of the present invention operates a plurality of outriggers each including a telescopic beam and a telescopic jack, and a plurality of outriggers. A first operation input unit to which an operation to select an outrigger is input, and a second operation input unit to which an operation to select whether to operate the beam or the jack in the outrigger is input; An operation unit including a third operation input unit to which an operation to select extension operation or contraction operation in an outrigger is input, the first operation input unit, the second operation input unit And the third operation input unit includes an operation unit capable of functioning as an alternate switch and a momentary switch; A control unit that controls the operation of the outrigger based on an operation signal from a unit, and any one of the first operation input unit, the second operation input unit, and the third operation input unit. When the operation input is performed by the target operation input unit, the condition of whether to cause the target operation input unit to function as the momentary switch is set, and the target operation input is performed based on the set condition. the first operation input portion by the input operation at the parts, if it is determined that the state that includes an operation input unit in the oN state in all types of the second operation input portion and the third operation input unit Only the type in which the target operation input unit is finally included in the ON state operation input unit among the first operation input unit, the second operation input unit, and the third operation input unit And the target operation The radical 19 finally Based upon the determined kind ready to include an operation input unit in the ON state, and a control unit to function the object operation input unit as the momentary switch.

  According to the present invention, it is possible to provide an outrigger device in which the outrigger is appropriately operated regardless of the order in which the operation input is performed in the three types of operation input units.

It is the schematic which shows the crane which concerns on 1st Embodiment. It is a perspective view showing roughly composition of one in an outrigger concerning a 1st embodiment. It is the schematic which shows the hydraulic circuit of the oil which operates the outrigger which concerns on 1st Embodiment. It is the schematic which shows the structure which controls a 1st solenoid valve and a 2nd solenoid valve in the outrigger apparatus which concerns on 1st Embodiment. It is the schematic which shows the structure of the operation unit which concerns on 1st Embodiment. It is a flow chart which shows processing with an outrigger device at the time of operating an outrigger concerning a 1st embodiment. It is a flowchart which shows the setting process of the conditions of whether to make an object switch function as a momentary switch performed by the control part which concerns on 1st Embodiment. It is a flowchart which shows the process from Y1 to Y2 of FIG. 7A. It is a flowchart which shows the determination processing of the type made to function as a momentary switch performed by the control part which concerns on 1st Embodiment.

First Embodiment
A first embodiment of the present invention will be described with reference to FIGS. 1 to 8. FIG. 1 is a view showing a crane (traveling type crane) 1 which is a construction machine of the present embodiment.

  As shown in FIG. 1, the crane 1 includes a vehicle body (traveling vehicle body) 2. On the vehicle body 2 are provided a revolving unit 3 which can be turned with respect to the vehicle body 2 and a cab 5 in which a driving operation of the crane 1 and the like are performed. The proximal end of the boom 6 is connected to the revolving unit 3. One end of a boom relief cylinder 7 is connected to the boom 6. The other end of the boom relief cylinder 7 is connected to the swing body 3. The boom 6 is raised or lowered with respect to the rotating body 3 by the expansion and contraction of the boom raising and lowering cylinder 7. Further, in a state where the boom 6 is raised relative to the revolving unit 3, the hook (main hook) 9 is suspended from the tip of the boom 6. The vehicle body 2 is provided with a pair of front wheels 11A and 11B and a pair of rear wheels 12A and 12B.

  The crane 1 is provided with an outrigger device 13. The outrigger device 13 includes a plurality of (four in the present embodiment) outriggers 15A to 15D attached to the vehicle body 2. In the present embodiment, a pair of outriggers (forward outriggers) 15A and 15B are provided in the front portion of the vehicle body 2, and a pair of outriggers (rear outriggers) 15C and 15D are provided in the rear portion of the vehicle body 2. In the front part of the vehicle body 2, an outrigger 15A is provided on the left side, and an outrigger 15B is provided on the right side. In the rear part of the vehicle body 2, an outrigger 15C is provided on the left side, and an outrigger 15D is provided on the right side. In FIG. 1, only the outriggers 15A and 15C provided on the left side are shown, and the outriggers 15B and 15D provided on the right side are not shown.

  FIG. 2 is a view showing a configuration of one of the outriggers 15A to 15D. As shown in FIG. 2, the outrigger 15 </ b> A includes a beam (horizontal extension and contraction part) 16 </ b> A that can extend and contract substantially horizontally and a jack (vertical extension and contraction part) 17 </ b> A that can extend and contract substantially vertically. In this embodiment, the proximal end of the beam 16A is attached to the vehicle body, and the proximal end of the jack 17A is attached to the distal end of the beam 16A. A grounding portion (grounding plate) 18A is provided at the tip of the jack 17A. That is, in the present embodiment, the outrigger 15A is an H-type outrigger. Each of the other outriggers 15B-15D is of similar construction to the outrigger 15A, with beams (corresponding ones of 16B-16D), jacks (corresponding ones of 17B-17D) and grounds (18B-18D) The corresponding one) is provided.

  Each of the outriggers 15A-15D is actuated by the beam (a corresponding one of 16A-16D) and a jack (a corresponding one of 17A-17D) telescoping. Then, the grounding portions 18A to 18D are grounded to the ground, whereby the vehicle body 2 is supported by the outriggers 15A to 15D.

  In the present embodiment, the outriggers 15A to 15D are H-type outriggers, but the present invention is not limited to this. For example, in one variation, at each of the outriggers 15A-15D, the proximal end of the jack (the corresponding one of 17A-17D) is attached to the vehicle body 2 and the tip of the jack (the corresponding one of 17A-17D) Attached to the section is the proximal end of the beam (a corresponding one of 16A-16D). And in each of outrigger 15A-15D, the earthing | grounding part (corresponding | compatible one of 18A-18D) is provided in the front-end | tip part of a beam (corresponding | compatible one of 16A-16D). In this case, the outriggers 15A to 15D become X-type outriggers.

  FIG. 3 is a diagram showing an oil hydraulic circuit 20 for operating the outriggers 15A to 15D. The hydraulic circuit 20 is provided inside the vehicle body 2. As shown in FIG. 3, the hydraulic circuit 20 of the outrigger device 13 includes a pump 21 and an oil tank 22. The pump 21 discharges the oil stored in the oil tank 22 through the main supply line 23. Further, oil is recovered to the oil tank 22 through the main recovery line 25.

  The hydraulic circuit 20 includes a first solenoid valve (extension switching valve) 26. The main supply line 23 is branched into a sub supply line 27 and a center bypass line 28 on the upstream side (pump 21 side) of the first solenoid valve 26. The sub supply line 27 extends to the first solenoid valve 26 and the center bypass line 28 extends through the first solenoid valve 26. Further, a sub recovery line 29 is extended from the first solenoid valve 26. The sub recovery line 29 and the center bypass line 28 join on the downstream side (the oil tank 22 side) of the first solenoid valve 26, and the main recovery line 25 extends from the joining position toward the oil tank 22. Further, a main extension side line 31 and a main contraction side line 32 are extended from the first solenoid valve 26.

  The first solenoid valve 26 can be switched to the neutral state, the first supply state, and the second supply state. In FIG. 3, the first solenoid valve 26 is in the neutral state. In the first solenoid valve 26, in the neutral state, the center bypass line 28 is opened. Further, in the first solenoid valve (first control valve) 26, in the neutral state, the sub supply line 27 and the sub recovery line 29 do not communicate with any of the main extension side line 31 and the main contraction side line 32. . Therefore, in the neutral state of the first solenoid valve 26, the oil discharged from the pump 21 to the main supply line 23 passes through the center bypass line 28 and is recovered through the main recovery line 25.

  In the first solenoid valve 26, the center bypass line 28 is closed in the first supply state and the second supply state. Then, in the first solenoid valve 26, in the first supply state, the sub supply line 27 communicates with the main extension side line 31, and the sub recovery line 29 communicates with the main contraction side line 32. Therefore, in the first supply state of the first solenoid valve 26, the oil discharged from the pump 21 to the main supply line 23 is supplied to the main extension side line 31 through the sub supply line 27, and the main contraction side line 32. Oil is recovered through the sub recovery line 29 and the main recovery line 25. Further, in the first solenoid valve 26, in the second supply state, the sub supply line 27 communicates with the main contraction side line 32, and the sub recovery line 29 communicates with the main extension side line 31. Therefore, in the second supply state of the first solenoid valve 26, the oil discharged from the pump 21 to the main supply line 23 is supplied to the main contraction side line 32 through the sub supply line 27, and the main extension side line 31 Oil is recovered through the sub recovery line 29 and the main recovery line 25.

  The hydraulic circuit 20 of the outrigger device 13 includes the same number (four in the present embodiment) of second electromagnetic valves (beam / jack switching valves) 33A to 33D as the outriggers 15A to 15D. In the hydraulic circuit 20, the same number (four in the present embodiment) of beam cylinders (horizontal extension cylinders) 35A to 35D as the outriggers 15A to 15D and the same number as the outriggers 15A to 15D In the configuration, four) jack cylinders (vertical telescopic cylinders) 36A to 36D are provided as actuators. Each of the beam cylinders 35A-35D expands and contracts (actuates) hydraulically, which causes the corresponding outrigger (corresponding one of 15A-15D) beams (corresponding one of 16A-16D) to expand and contract. Also, each of the jack cylinders 36A-36D expands and contracts (actuates) by hydraulic pressure, whereby the corresponding outrigger (corresponding one of 15A-15D) jacks (corresponding one of 17A-17D) expands and contracts.

  The main extension side line 31 branches into the same number of (four in the present embodiment) sub extension side lines 37A to 37D as the second solenoid valves 33A to 33D. Each of the sub extension side lines 37A to 37D is extended to the corresponding second solenoid valve (corresponding one of 33A to 33D). From each of the second solenoid valves 33A to 33D, a beam extension side line (corresponding one of 41A to 41D) is extended to a corresponding beam cylinder (corresponding one of 35A to 35D), and a corresponding jack The jack extension side line (corresponding one of 42A-42D) extends to the cylinder (corresponding one of 36A-36D).

  The main contraction side lines 32 have the same number (four in the present embodiment) of the beam contraction side lines 43A to 43D as the beam cylinders 35A to 35D, and the same numbers (the present embodiment) as the jack cylinders 36A to 36D. 4) Jacks are branched into the contraction side lines 45A to 45D. Each of the beam contraction side lines 43A to 43D is extended to the corresponding beam cylinder (corresponding one of 35A to 35D), and each of the jack contraction side lines 45A to 45D is corresponding to the corresponding jack cylinder (36A to 36D) It is extended to the corresponding one).

  Each of the second solenoid valves 33A to 33D can be switched to the neutral state, the first supply state, and the second supply state. In FIG. 3, the second solenoid valves 33A to 33D are all in the neutral state. In each of the second solenoid valves 33A to 33D, in the neutral state, the sub extension side line (the corresponding one of 37A to 37D) is the beam extension side line (the corresponding one of 41A to 41D) and It does not communicate with any of the jack extension side lines (the corresponding one of 42A-42D). Thus, in each neutral state of the second solenoid valve 33A-33D, either of the corresponding beam cylinder (the corresponding one of 35A-35D) and the corresponding jack cylinder (the corresponding one of 36A-36D) No oil is supplied.

  In each of the second solenoid valves 33A to 33D, in the first supply state, the sub extension side line (corresponding one of 37A to 37D) is a corresponding one of the beam extension side lines (41A to 41D). Communicate with the Therefore, in the first supply state of each of the second solenoid valves 33A to 33D, oil is supplied from the main extension side line 31 (that is, the first solenoid valve 26 is in the first supply state). Corresponding to the corresponding beam cylinders (35A-35D) through the corresponding sub-extension side lines (the corresponding one of 37A-37D) and the corresponding beam extension side lines (the corresponding one of 41A-41D) One) is supplied with oil and the corresponding beam cylinder (corresponding one of 35A-35D) is extended. Further, in the first supply state of each of the second solenoid valves 33A to 33D, oil is supplied from the main contraction side line 32 (that is, the first solenoid valve 26 becomes in the second supply state). Oil is supplied to the corresponding beam cylinder (corresponding one of 35A to 35D) through the corresponding beam contraction side line (corresponding one of 43A to 43D), and the corresponding beam cylinder (35A to 35D) The corresponding one) contracts.

  In each of the second solenoid valves 33A to 33D, in the second supply state, the sub extension side line (corresponding one of 37A to 37D) corresponds to the jack extension side line (42A to 42D). Communicate with the Therefore, in the second supply state of each of the second solenoid valves 33A to 33D, oil is supplied from the main extension side line 31 (that is, the first solenoid valve 26 is in the first supply state). Through the corresponding sub-extending side line (the corresponding one of 37A-37D) and the corresponding jack extending side line (the corresponding one of 42A-42D) the corresponding jack cylinder (36A-36D) One) is supplied with oil and the corresponding jack cylinder (corresponding one of 36A-36D) is extended. Further, in the second supply state of each of the second solenoid valves 33A to 33D, oil is supplied from the main contraction side line 32 (that is, the first solenoid valve 26 becomes in the second supply state). Oil is supplied to the corresponding jack cylinder (corresponding one of 36A to 36D) through the corresponding jack contraction side line (corresponding one of 45A to 45D), and the corresponding jack cylinder (36A to 36D) The corresponding one) contracts.

  FIG. 4 is a view showing a configuration for controlling the first solenoid valve 26 and the second solenoid valves 33A to 33D in the outrigger device 13. As shown in FIG. As shown in FIG. 4, the outrigger device 13 includes a display 46 provided in the cab 5. The display 46 is provided with an operation unit 47 to which an operation to operate the outriggers 15A to 15D is input. The outrigger device 13 also includes a travel controller 50 provided inside the vehicle body 2. The traveling controller 50 includes a control unit 51. The control unit 51 includes a processor including a central processing unit (CPU) or an application specific integrated circuit (ASIC), and a storage medium such as a memory. An operation signal is input to the control unit 51 based on the operation of the operation unit 47. The control unit 51 controls the supply of power to the first solenoid valve (first control valve) 26 and the second solenoid valves (second control valves) 33A to 33D based on the operation signal. The oil passing through each of the solenoid valve 26 and the second solenoid valves 33A to 33D is controlled. Thus, the supply of oil to each of the beam cylinders 35A to 35D and the jack cylinders 36A to 36D is adjusted, and the operation of each of the beam cylinders 35A to 35D and the jack cylinders 36A to 36D is controlled. Thereby, the operation of each of the outriggers 15A to 15D is controlled.

  FIG. 5 is a diagram showing the configuration of the operation unit 47. As shown in FIG. As shown in FIG. 5, the operation unit 47 includes five first switches A (A1 to A5) in the present embodiment as a first operation input unit, and two second switches as a second operation input unit. B (B1, B2) and two third switches C (C1, C2) as a third operation input unit. The first switches A1 to A5 are switches of the same type with respect to each other. The second switches B1 and B2 are switches of the same type with respect to each other, and are different from the first switch A. The third switches C1 and C2 are switches of the same type with respect to each other and different from the first switch A and the second switch B.

  Whether or not the operation unit 47 is pressed for each of the first switch A (A1 to A5), the second switch B (B1 and B2), and the third switch C (C1 and C2) (ie, An operation signal indicating whether or not an operation input is performed is transmitted to the control unit 51. That is, in each of the first switch A, the second switch B, and the third switch C, the pressed state (the state in which the operation input is performed) and the state in which the pressing is released (the operation input is The operation signal transmitted from the operation unit 47 to the control unit 51 changes between the released state). Therefore, based on the operation signal from operation unit 47, control unit 51 detects whether or not an operation input is performed for each of first switch A, second switch B and third switch C. Do.

  In the first switch (first operation input unit) A, an operation of selecting an outrigger (at least one of 15A to 15D) to be operated from the plurality of outriggers 15A to 15D is input. In the present embodiment, it is selected that the corresponding outrigger (corresponding one of 15A to 15D) is actuated by each of the first switches A1 to A4 being in the ON state (closed state). Then, when the first switch A5 is turned on (closed), it is selected to operate all the outriggers 15A to 15D. When the first switch A5 is turned on, all the first switches A1 to A4 are turned on. For example, if only the first switch A1 is in the ON state and the first switches A2 to A4 are in the OFF state and the first switch A5 is switched from the OFF state to the ON state, the first switch A1 is in the ON state , And the first switches A2 to A4 are switched to the ON state. When all the first switches A1 to A4 are turned on (in this case, the first switch A5 is also turned on), when the first switch A5 is switched to the off state, the first switches A1 to A4 are turned on. All are switched from the ON state to the OFF state. Therefore, the number of switches in the ON state among the first switches A1 to A4 can take any value of 0 or more and 4 or less.

  In the second switch (second operation input unit) B, the beam (corresponding one of 16A to 16D) is operated or jack (corresponding one of 17A to 17D) in each of the outriggers 15A to 15D. An operation to select whether to operate is input. In the present embodiment, it is selected that the beam (corresponding one of 16A to 16D) is actuated in each of the outriggers 15A to 15D by turning on the second switch B1 (close state). Then, when the second switch B2 is turned on (closed state), it is selected that the jack (corresponding one of 17A to 17D) is operated in each of the outriggers 15A to 15D. When at least one of the outriggers 15A to 15D is in operation, one of the second switches B1 and B2 is in the ON state. Therefore, both of the second switches B1 and B2 are never in the ON state.

  In the third switch (third operation input unit) C, an operation for selecting whether the extension operation or the contraction operation is performed in each of the outriggers 15A to 15D is input. In this embodiment, extension operation is selected in each of the outriggers 15A to 15D as the third switch C1 is turned on (closed). Then, when the third switch C2 is turned on (closed), it is selected that the contraction operation is performed in each of the outriggers 15A to 15D. When at least one of the outriggers 15A to 15D is in operation, one of the third switches C1 and C2 is in the ON state. Therefore, both the third switches C1 and C2 are never in the ON state.

  For example, it is assumed that the first switch A5 (that is, all of the first switches A1 to A4), the second switch B1 and the third switch C1 are turned ON by the operation input in the operation unit 47. In this case, the control unit 51 switches the first solenoid valve 26 to the first supply state by controlling the first solenoid valve 26 and the second solenoid valves 33A to 33D, and the second solenoid valve. All 33A-33D are switched to the first supply state. Thereby, oil is supplied through the beam extension side line (corresponding one of 41A to 41D) in each of all the beam cylinders 35A to 35D. Then, in each of all the outriggers 15A-15D, the beam (a corresponding one of 16A-16D) is stretched.

  Further, for example, it is assumed that the first switches A1 and A4, the second switch B2 and the third switch C2 are turned ON by the operation input in the operation unit 47. In this case, the control unit 51 switches the first solenoid valve 26 to the second supply state by controlling the first solenoid valve 26 and the second solenoid valves 33A to 33D, and the second solenoid valve. 33A and 33D are switched to the second supply state, and the second solenoid valves 33B and 33C are switched to the neutral state. Thereby, oil is supplied through the jack contraction side line (corresponding one of 45A, 45D) in each of the jack cylinders 36A, 36D. Then, in each of the outriggers 15A and 15D, the jack (corresponding one of 17A and 17D) is contracted. At this time, since the oil is not supplied to the beam cylinders 35B and 35C and the jack cylinders 36B and 36C, the outriggers 15B and 15C are not operated.

  The first switch A (A1 to A5), the second switch B (B1 and B2), and the third switch C (C1 and C2) are alternate switches (self-holding switches) and momentary switches (self-resetting switches) It is possible to function as both Here, the alternate switch is switched between the ON state (closed state) and the OFF state (opened state) by pressing (operation input), and is turned ON even if the pressing is released (even when the operation input is released). It does not switch between the state and the OFF state. Therefore, the alternate switch in the OFF state is switched to the ON state by pressing (operation input), but is held in the ON state even if the pressing (operation input) is released. Then, the switch is switched from the ON state to the OFF state by pressing (operation input) again by the alternate switch. On the other hand, the momentary switch is turned on only while pressing (operation input) is being performed, and is turned off when the pressing (operation input) is released.

  The control unit 51 controls each of the first switch A, the second switch B, and the third switch C to function as an alternate switch or to function as a momentary switch. That is, when the operation input is performed by any one of the first switch A, the second switch B, and the third switch C, the control unit 51 performs the switch (the operation input (pressing) is performed (the A condition is set as to whether or not the target switch (target operation input unit), which is any one of A1 to A5, B1, B2, C1, and C2, functions as a momentary switch. Then, based on the set conditions, the control unit 51 performs an operation input (pressing) on the target switch (any one of A1 to A5, B1, B2, C1, and C2) to set the first switch A, the first switch A, It is determined whether or not a switch (operation input unit) in the ON state is included in each type of all the types of the switch 2 and the third switch C. Here, although a plurality of first switches A1 to A4 may be simultaneously turned ON, if at least one of the first switches A1 to A4 is ON, the type of first switch A is ON It is determined that the switch is included.

  Then, only when it is determined that all types of the first switch A, the second switch B, and the third switch C include switches in the ON state, the control unit 51 Among the three types of switch A, second switch B, and third switch C, one type to be functioned as a momentary switch is determined. Then, by determining one type (one type of A, B, C) to be functioned as a momentary switch, the switch (A1 to A5, B1, B2, C1, C2 any one of which the operation input is performed) Function as a momentary switch. The control of the first switch A, the second switch B, and the third switch C by the control unit 51 will be described in detail later.

  Next, the operation and effects of the outrigger device 13 will be described. FIG. 6 is a flow chart showing processing in the outrigger device 13 when operating the outriggers 15A to 15D. As shown in FIG. 6, one of the first switch A (A1 to A5), the second switch B (B1 and B2), and the third switch C (C1 and C2) is pressed (step S101). -Yes), when the operation input is performed, the process of operating the outriggers 15A to 15D is started. When the operation input is performed by any one of the switches A to C (step S101-Yes), the control unit 51 performs the operation input in step S101 based on the operation signal from the operation unit 47 (pressing A setting process of whether to make the target switch (target operation input unit) which is the switch) function as a momentary switch is performed (step S102).

  FIGS. 7A and 7B show the process of setting whether the target switch (any one of A1 to A5, B1, B2, C1 and C2) is made to function as a momentary switch performed by the control unit 51 (FIG. 10 is a flowchart showing step S102) of FIG. FIG. 7B shows the process performed between Y1 and Y2 in FIG. 7A. As shown in FIGS. 7A and 7B, the control unit 51 sets a reference number X in setting the conditions as to whether or not the target switch functions as a momentary switch. The reference number X indicates the number of types of switches included in the ON state among the three types of switches A to C. For example, if the first switch A1 is in the ON state and the third switch C1 is in the ON state, the reference number X is two. Further, if all the switches A to C are in the OFF state, the reference number X is zero. A plurality of first switches A1 to A4 may be turned on at the same time, but if at least one of the first switches A1 to A4 is in an ON state, the type of the first switch A is an ON state switch. It is determined that the state is included. For this reason, if both the second switch B and the third switch C are in the OFF state, even if only the first switch A1 is in the ON state, the first switches A1 to A3 are ON. Even in the case of the state, the reference number X is one. The reference number X has a value of 0, 1, 2 or 3.

  As shown in FIG. 6, when the setting process (step S102) of whether to make the target switch function as a momentary switch is performed, the control unit 51 determines the target switch based on the condition set in step S102. Whether all types of the first switch A, the second switch B, and the third switch C include an ON-state switch (operation input unit) in all types by the operation input at judge. That is, the control unit 51 determines whether or not the reference number X is set to 3 in step S102 (step S103).

  When at least one of the first switch A, the second switch B, and the third switch C does not include the switch in the ON state (when the reference number X is 0, 1 or 2), the control unit 51 The control causes all of the first switch A, the second switch B and the third switch C to function as alternate switches. Therefore, when at least one of the first switch A, the second switch B, and the third switch C does not include a switch in the ON state, the first switch A, the second switch B, and the third switch None of the switches C function as momentary switches. Therefore, when the reference number X is not 3 in step S103 (step S103-No), the target switch for which the operation input is performed in step S101 also functions as an alternate switch.

  When the target switch functions as an alternate switch, the target switch is held in the ON state even if the pressing (operation input) of the target switch is released (Yes in step S104). Therefore, if the reference number X is not 3 in step S103 (step S103-No), the control unit 51 sets in step S102 even if the pressing (operation input) of the target switch is released (Yes in step S104). The reference number X is held at the same value as the specified value (step S105). Then, when the operation by the outriggers 15A to 15D is not finished (step S106-No), when the operation input is performed with any one of the switches A to C (step S101-Yes), the condition of step S102 is set again. A setting process is performed, and the determination of step S103 is performed.

  As shown in FIG. 7A and FIG. 7B, in setting the condition (step S102) as to whether or not the target switch on which the operation input is performed functions as a momentary switch, the control unit 51 presses the target switch in step S101. It is determined whether or not the reference number X is 0 (step S121) before it is performed (that is, before the operation input is performed by the target switch). If the reference number X is 0 (step S121-Yes), the target switch is turned ON by the operation input, and the type including the target switch is a switch from the state not including the ON state switch to the ON state switch Change to a state that includes Therefore, the control unit 51 adds the reference number X from 0 to 1 and sets the reference number X to 1 (step S122). When the reference number X is not 0 (step S121-No), the control unit 51 sets the reference number X to 1 before the target switch is pressed (that is, before the operation input is performed by the target switch). It is determined whether there is any (step S123).

  If the reference number X is 1 (Yes at Step S123), the control unit 51 determines whether the switch in the OFF state is pressed as a target switch at Step S101 (Step S124). That is, before the operation input is performed, it is determined whether the target switch is in the OFF state. As described above, when the reference number X is not 3 (for example, when the reference number X is 1), all of the first switch A, the second switch B, and the third switch C function as alternate switches. . Therefore, when the switch in the OFF state is pressed as the target switch (Step S124-Yes), the target switch is switched from the OFF state to the ON state, and when the switch in the ON state is pressed as the target switch (Step S124-No), the target switch is switched from the ON state to the OFF state.

  If the target switch in the OFF state is pressed in step S101 (Yes in step S124), the control unit 51 turns off all the other switches in the same type (one corresponding to A to C) as the target switch. It is determined whether or not (step S125). If all other switches in the same type as the target switch are in the OFF state (step S125-Yes), the target switch is turned on by the operation input, and the type including the target switch is the switch in the ON state Changes from the state not including to the state including the switch in the ON state. Therefore, the control unit 51 adds the reference number X from 1 to 1 and sets the reference number X to 2 (step S126).

  In addition, as described above, a plurality of first switches A1 to A4 may be simultaneously turned on. For example, when only the first switch A1 is in the ON state among the types of the first switch A, the first switch A2 in the OFF state is pressed as a target switch. In this case, the type (A) including the target switch (A2) is ON both before the operation input is performed by the first switch A2 and after the operation input is performed by the first switch A2. It is a state including the switch of the state. Therefore, the reference number X does not change even when the operation input is performed by the target switch (A2). Therefore, when any of the other switches in the same type as the target switch is in the ON state (step S125 No), the control unit 51 does not change the reference number X from 1 and changes the reference number X to 1 (Step S127).

  Even when it is determined in step S124 that the switch in the ON state is pressed as the target switch (No in step S124), the control unit 51 selects one of the other types (corresponding to A to C) as the target switch. It is determined whether all the switches are in the OFF state (step S128). If all other switches in the same type as the target switch are in the OFF state (step S128-Yes), the target switch is turned off by the operation input, and the type including the target switch is the switch in the ON state Changes from the state including the to the state not including the switch in the ON state. Therefore, the control unit 51 subtracts the reference number X from 1 by 1 and sets the reference number X to 0 (step S129).

In addition, as described above, a plurality of first switches A1 to A4 may be simultaneously turned on. For example, when the first switches A1 and A2 are in the ON state among the types of the first switch A, the first switch A2 in the ON state is pressed as a target switch. In this case, the type (A) including the target switch (A2) is ON both before the operation input is performed by the first switch A2 and after the operation input is performed by the first switch A2. It is a state including the switch of the state. Therefore, the reference number X does not change even when the operation input is performed by the target switch (A2). Therefore, when one of the other switches is in the ON state in the same type as the target switch (step S128 No), the control unit 51 does not change the reference number X from 1 and changes the reference number X to 1 (Step S130). However, although not shown in FIGS. 7A and 7B, when all of the first switches A1 to A4 are ON (the first switch A5 is ON), the first switch A5 is turned OFF by the operation input. If it does, all of the first switches A1 to A4 are switched to the OFF state. In this case, if the reference number X is 1 before the operation input is performed by the first switch A5, the control unit 51 subtracts the reference number X by 1 and sets the reference number X to 0. .
If the reference number X is not 1 before the target switch is pressed (that is, before the operation input is performed by the target switch) (step S123-No), the control unit 51 is before the target switch is pressed. It is determined that the reference number X is 2 (step S131). Also when the reference number X is 2, the same processing as in the case where the reference number X is 1 (step S123-Yes) is performed. That is, also when the reference number X is 2 before the operation input is performed, the control unit 51 determines whether the switch in the OFF state is pressed as the target switch in S101 (step S132). When the reference number X is not 3, all of the first switch A, the second switch B and the third switch C function as an alternate switch, so the switch in the OFF state is pressed as the target switch. In the case (step S132-Yes), the target switch is switched from the OFF state to the ON state, and when the switch in the ON state is pressed as the target switch (step S132-No), the target switch changes from the ON state to the OFF state. Switch over.

  When the target switch in the OFF state is pressed in step S132 (Yes in step S132), the control unit 51 turns off all the other switches in the same type (one corresponding to A to C) as the target switch. It is determined whether or not (step S133). If all other switches in the same type as the target switch are in the OFF state (step S133-Yes), the target switch is turned ON by the operation input, and the type including the target switch is the switch in the ON state Changes from the state not including to the state including the switch in the ON state. Therefore, the control unit 51 adds the reference number X from 2 to 1 and sets the reference number X to 3 (step S134). When one of the other switches in the same type as the target switch is in the ON state (step S133-No), the control unit 51 does not change the reference number X from 2 and changes the reference number X to 2 (Step S135).

Even when it is determined in step S132 that the switch in the ON state is pressed as the target switch (No in step S132), the control unit 51 selects one of the other types (corresponding to A to C) as the target switch. It is determined whether all the switches are in the OFF state (step S136). If all other switches in the same type as the target switch are in the OFF state (step S136-Yes), the target switch is turned off by the operation input, and the type including the target switch is the switch in the ON state Changes from the state including the to the state not including the switch in the ON state. Therefore, the control unit 51 subtracts the reference number X from 2 by 1 and sets the reference number X to 1 (step S137). When one of the other switches in the same type as the target switch is in the ON state (step S136-No), the control unit 51 does not change the reference number X from 2 and changes the reference number X to 2 (Step S138). However, although not shown in FIGS. 7A and 7B, when all of the first switches A1 to A4 are ON (the first switch A5 is ON), the first switch A5 is turned OFF by the operation input. If it does, all of the first switches A1 to A4 are switched to the OFF state. In this case, if the reference number X is 2 before the operation input is performed by the first switch A5, the control unit 51 subtracts the reference number X by 1 and sets the reference number X to 1. .
As shown in FIG. 6, when the reference number X is 3 in step S103 (step S103-Yes), the control unit 51 selects one of the first switch A, the second switch B, and the third switch C. Among the types, determination processing (step S107) of the type to be functioned as a momentary switch is performed. That is, based on the conditions set in step S102, all types of the first switch A, the second switch B, and the third switch C are turned on by the operation input of the target switch Only when it is determined that the operation input unit is included, the control unit 51 selects one of the first switch A, the second switch B, and the third switch C to function as a momentary switch. judge. All the switches A to C function as alternate switches and none of the switches A to C function as momentary switches unless determination processing of the type to be functioned as a momentary switch is performed among the three types in step S107. .

  FIG. 8 is a flowchart showing the determination processing (step S107 in FIG. 6) of the three types to be functioned as a momentary switch, which is performed by the control unit 51. As shown in FIG. 8, in the determination processing of the type to be functioned as the momentary switch among the three types, the control unit 51 selects one of the first switch A, the second switch B, and the third switch C. Parameters a, b, c indicating whether the type is to function as a momentary switch are set. Here, the parameter a is a parameter for the first switch A, and the parameter b is a parameter for the second switch B. The parameter c is a parameter for the third switch C. When the value is 1 in each of the parameters a, b, c, the corresponding type of switch (one corresponding type of A to C) functions as a momentary switch. On the other hand, when the value is 0 in each of the parameters a, b, c, the corresponding type of switch (corresponding to one of A to C) functions as an alternate switch and does not function as a momentary switch. In addition, one of the parameters a, b, and c is set to 1 by the determination processing of the type to be functioned as the momentary switch among the three types.

  In the determination processing of the type to be functioned as the momentary switch among the three types, the control unit 51 determines whether or not the switch included in the type of the first switch A in step S101 is pressed as a target switch (step S141). ). When one of the first switches A is pressed as the target switch (step S141-Yes), the control unit 51 sets the parameter a to 1 and sets the parameters b and c to 0 (step S142). ). Thereby, the control unit 51 causes the first switch A to function as a momentary switch (step S143), and causes the second switch B and the third switch C to function as an alternate switch.

  When it is determined in step S141 that none of the first switches A is pressed as the target switch (No in step S141), the control unit 51 changes the type of the second switch B in step S101. It is determined whether the included switch is pressed as the target switch (step S144). When one of the second switches B is pressed as the target switch (Yes at Step S144), the control unit 51 sets the parameter b to 1 and sets the parameters a and c to 0 (Step S145). ). Thus, the control unit 51 causes the second switch B to function as a momentary switch (step S146), and causes the first switch A and the third switch C to function as an alternate switch.

  When it is determined in step S144 that none of the second switches B is pressed as the target switch (No in step S144), the control unit 51 sets the type of the third switch C in step S101. It is determined that the included switch is pressed as the target switch (step S147). Then, the control unit 51 sets the parameter c to 1 and sets the parameters a and b to 0 (step S148). Thereby, the control unit 51 causes the third switch C to function as a momentary switch (step S149), and causes the first switch A and the second switch B to function as an alternate switch.

  As described above, among the first switch A, the second switch B, and the third switch C, only the switch of the type including the target switch is determined by the determination processing of the type that functions as the momentary switch among the three types. Functions as a momentary switch, and a switch of a type different from the target switch functions as a momentary switch.

  As shown in FIG. 6, when the type to be functioned as a momentary switch is determined by the type determination process (step S107) to be functioned as a momentary switch, the control unit 51 controls the outrigger 15A to At least one of the 15D is activated (step S108). Then, at least one of the outriggers 15A to 15D operates (step S108) as long as pressing (operation input) is performed by the target switch (No in step S109).

  When the pressing (operation input) on the target switch is released (Yes in step S109), the control unit 51 stops the operation of the outriggers 15A to 15D (step S110). Further, since the switch of the type including the target switch functions as a momentary switch, the target switch is switched from the ON state to the OFF state when the operation input is canceled (step S109-Yes). By switching the target switch to the OFF state, the type including the target switch changes from the state including the switch in the ON state to the state not including the switch in the ON state. Therefore, when the pressing (operation input) on the target switch is released (step S109-Yes), the control unit 51 subtracts the reference number X from 3 by 1 and sets the reference number X to 2 (step S111). When the first switch A5 is operated as a momentary switch, all the first switches A1 to A4 are in the ON state while the first switch A5 is pressed (operation input). Thus, when the pressing (operation input) is released by the first switch A5, all the first switches A1 to A4 are turned off.

  When the operation by the outriggers 15A to 15D is not finished (Step S112-No), when the operation input is performed by any one of the switches A to C (Step S101-Yes), the condition setting process of Step S102 is performed again. Is performed, and the determination of step S103 is performed.

  For example, an operator performs pressing (operation input) in the order of the first switch A5, the second switch B1, and the third switch C1 from the OFF state of all the switches A to C. At this time, the first switch A5 is pressed as a target switch in step S101 by performing the processing as described above, and the reference number X is set by the processing in steps S121 and S122 in setting the conditions in step S102. It is set to 1. And since reference number X is not 3 in Step S103 (Step S103-No), processing of Steps S104-S106 is performed and it returns to Step S101. Then, in step S101, the second switch B1 is pressed as a target switch, and in setting of the condition of step S102, the reference number X is set to 2 by the processing of steps S121 and S123 to S126. And since reference number X is not 3 in Step S103 (Step S103-No), processing of Steps S104-S106 is performed and it returns to Step S101. Then, in step S101, the third switch C1 is pressed as the target switch, and in the setting of the condition of step S102, the reference number X is set to 3 by the processing of steps S121 and S131 to S134.

  When the reference number X becomes 3 in step S103 (S103-Yes), in the determination in step S104, the third switch is a type that includes the target switch (C1) by the processing in steps S141, S144, and S147 to S149. C functions as a momentary switch. Thus, in step S108, the beams (corresponding ones of 16A-16D) are expanded in each of all the outriggers 15A-15D. Then, when the pressing on the target switch C1 is released (Yes at Step S109), the processes at Steps S110 and S111 are performed, and the reference number X is set to two. Therefore, when all of the switches A to C are pressed (operation input) in the order of the first switch A5, the second switch B1, and the third switch C1 from the OFF state, the three types of switches A to C The third switch C in which the type of the ON state is finally included therein functions as a momentary switch.

  For example, an operator presses (operation input) the third switch C2, the first switch A1, the first switch A4, and the second switch B1 in this order from the OFF state of all the switches A to C. Do. At this time, the third switch C2 is pressed as a target switch in step S101 by performing the processing as described above, and in the setting of the conditions in step S102, the reference number X is set by the processing in steps S121 and S122. It is set to 1. And since reference number X is not 3 in Step S103 (Step S103-No), processing of Steps S104-S106 is performed and it returns to Step S101. Then, in step S101, the first switch A1 is pressed as a target switch, and in the setting of the condition of step S102, the reference number X is set to 2 by the processing of steps S121 and S123 to S126. And since reference number X is not 3 in Step S103 (Step S103-No), processing of Steps S104-S106 is performed and it returns to Step S101. Then, in step S101, the first switch A4 is pressed as a target switch, and in setting of the conditions of step S102, the reference number X is set to 2 by the processing of steps S121, S123 to S125, and S127. And since reference number X is not 3 in Step S103 (Step S103-No), processing of Steps S104-S106 is performed and it returns to Step S101. Then, in step S101, the second switch B2 is pressed as a target switch, and in setting of the condition of step S102, the reference number X is set to 3 by the processing of steps S121 and S131 to S134.

  When the reference number X becomes 3 in step S103 (S103-Yes), in the determination of step S104, the second switch B which is the type including the target switch (B2) by the process of steps S141 and S144 to S146. It functions as a momentary switch. As a result, in step S108, the jacks (corresponding ones of 17A and 17D) contract in each of the outriggers 15A and 15D. Then, when the pressing on the target switch B2 is released (Yes in step S109), the processes in steps S110 and S111 are performed, and the reference number X is set to 2. Therefore, when all the switches A to C are turned off, the third switch C2, the first switch A1, the first switch A4, and the second switch B2 are sequentially pressed (operation input), three types Among the switches A to C, the second switch B which is finally brought into a state in which the type of the ON state is included functions as a momentary switch.

  Therefore, in the present embodiment, by performing the processing shown in FIGS. 6 to 8, even if the operation input is performed in any order among the three types of switches A to C, the three types of switches A to C Among the switches, only the switch (corresponding to one of A to C) that has become in a state in which the type of the ON state is included functions as a momentary switch. That is, for example, even when the operation input is performed in the order of the first switch A, the second switch B, and the third switch C from the OFF state of all the switches A to C, the third switch C, the third switch C, Even when the operation input is performed in the order of the switch A of 1 and the second switch B, only the type including the switch to which the operation input is performed last among the three types functions as a momentary switch. For this reason, it is easy for any operator (regardless of the order of familiar operation inputs) to perform an operation for operating the outriggers 15A to 15D.

  Even if the operation input is performed in any order among the three types of switches A to C, the switch in which the type of the ON state is finally included in the three types of switches A to C (A to C Since only one corresponding one of them functions as a momentary switch, the outriggers 15A to 15D can be appropriately operated regardless of the order of the operation inputs on the three types of switches A to C.

(Modification)
In addition, although the above-mentioned embodiment mentioned and demonstrated the crane 1 as an example as a construction machine, if it is an outrigger (15A-15D) of a construction machine provided with a vehicle body (2), the structure of the above-mentioned embodiment is applicable It is.

  In the embodiments described above, each of the plurality of outriggers (15A-15D) of the outrigger device (13) comprises an extendable beam (corresponding one of 16A-16D) and an extendable jack (17A-17D) And the corresponding one). Then, the operation unit (47) receives an operation to select an outrigger (at least one of 15A to 15D) to be operated from the outrigger (15A to 15D) and the first operation input unit (A1 to A5) , And the second operation input unit (B1, B2) to which an operation to select whether to operate the beam (16A to 16D) or the jack (17A to 17D) in the outrigger (15A to 15D) is input , And a third operation input unit (C1, C2) to which an operation to select whether to perform extension operation or contraction operation in the outrigger (15A to 15D) is input. The first operation input unit (A1 to A5), the second operation input unit (B1 and B2), and the third operation input unit (C1 and C2) can function as an alternate switch and a momentary switch. . The control unit (51) controls the operation of the outrigger (15A to 15D) based on the operation signal from the operation unit (47). When any one of the first operation input unit (A), the second operation input unit (B) and the third operation input unit (C) performs an operation input, the control unit (51) Sets a condition as to whether or not the target operation input unit, which is the operation input unit on which the operation input is performed, functions as a momentary switch. Then, the control unit (51) performs the first operation input unit (A), the second operation input unit (B), and the third operation input according to the operation input in the target operation input unit based on the set conditions. The first operation input unit (A) and the second operation input unit (B) are determined only when it is determined that the operation input unit in the ON state is included in each type in all types of the part (C). And one type to be functioned as a momentary switch is determined in the third operation input unit (C). Thus, the target operation input unit functions as a momentary switch.

  Although the embodiments and the like of the present invention have been described above, the present invention is not limited to the above-described embodiments and the like, and it goes without saying that various modifications can be made without departing from the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 ... Crane, 2 ... Vehicle body, 13 ... Outrigger apparatus, 15A-15D ... Outrigger, 16A-16D ... Beam, 17A-17D ... Jack, 20 ... Hydraulic circuit, 26 ... 1st solenoid valve, 33A-33D ... 2nd Solenoid valve 35A to 35D Beam cylinder 36A to 36D Jack cylinder 47 Operation unit 51 Control unit A1 to A5 First switch B1 and B2 Second switch C1 and C2 Third switch.

Claims (1)

A plurality of outriggers each comprising an extendable beam and an extendable jack;
A first operation input unit for inputting an operation for selecting an outrigger to be operated from the plurality of outriggers and an operation for selecting whether to operate the beam or operate the jack in the outrigger are input An operation unit comprising: a second operation input unit; and a third operation input unit to which an operation for selecting whether the extension operation or the contraction operation is performed in the outrigger is input, the first operation input An operation unit capable of functioning as an alternate switch and a momentary switch; and the second operation input unit and the third operation input unit.
A control unit that controls the operation of the outrigger based on an operation signal from the operation unit, which is any of the first operation input unit, the second operation input unit, and the third operation input unit. when the operation input in one certain object manipulation input unit is performed, the target operation input section sets whether conditions to function as the momentary switch, based on the set the condition, the subject the first operation input portion by the operation input by the operation input unit, an operation input unit of all types to the oN state of the second operation input unit and the third manipulation input unit is ready included determination In the case where the target operation input unit is finally included in the first operation input unit, the second operation input unit, and the third operation input unit, only the operation input unit in the ON state is included. And the pair is An operation input unit based on the last that has been determined that the kind ready to include an operation input unit in the ON state, and a control unit to function the object operation input unit as the momentary switch,
Outrigger equipment for construction equipment equipped with.