JP5748037B2 - Suspended fuel supply system - Google Patents

Description

  The present invention relates to a suspended fuel supply apparatus having a structure in which a liquid supply nozzle is suspended from a high position so that the liquid supply nozzle can be raised and lowered, and in particular, as the liquid supply operation is repeated, the elevation position (elevation height position) of the liquid supply nozzle changes. The present invention relates to a suspension type fuel supply apparatus configured so as not to occur.

  For example, a suspension type fueling device installed in a gasoline filling station (gasoline station) has one end communicating with a tank, and the other end of a pipe passage in which a liquid feeding means such as a pump and a measuring means such as a flow meter are interposed. However, it is the structure connected to the delivery unit provided in the gas station high place. The delivery unit is configured such that an oil supply hose having an oil supply nozzle connected to the tip can be led out and stored, and the base end of the oil supply hose is configured to communicate with the other end of the above-described piping passage. . As this type of delivery unit, there are a unit provided with a hose reel for winding an oil supply hose, and a hose guide roller for extracting / storing the oil supply hose.

  The delivery unit performs forward / reverse rotation of the hose reel or hose guide roller with a lifting motor to lead out / store the lubrication hose from the delivery unit, and lifts the lubrication nozzle at the tip of the suspended lubrication hose. Let The fueling nozzle is moved up and down by a switch operation of a hand switch provided at or near the fueling nozzle or a switch operation of a lifting operation panel disposed on the wall surface of the office. The oil supply nozzle and the oil supply hose are moved up and down between predetermined lift positions (for example, between two positions among the three lift positions including a fuel supply position, a standby position, and a storage position) according to the operation of each switch. At that time, the control device that controls each part of the device is based on the detection signal of the position detecting means provided in the delivery unit so as to position the refueling nozzle at the lift position of the movement destination according to the operation of each switch. Similarly, it is configured to drive and control a lifting motor in the delivery unit.

  In such a suspension type oiling device, the setting of the raising / lowering position (elevating height position) of the oiling nozzle is set for each gasoline service station from the delivery unit installation height position and the delivery unit suitable for the oiling work. Since the lead-out length of the oil supply hose is different, it corresponds to each lifting position at the time of installation by a specialized installation contractor as shown in, for example, Japanese Patent Laid-Open Nos. 55-107697 and 6-293398. In other words, the adjustment / setting of the derived / accommodated amount of the oil supply hose with respect to the hose reel is performed.

JP-A-55-107697 JP-A-6-293398

  However, in the suspended fuel supply apparatus configured as described above, the raising and lowering positions of the liquid supply nozzle and the liquid supply hose are those of the hose reel or hose guide roller supplied from the position detection means in the delivery unit. The control device manages the detection signal corresponding to the forward / reverse rotation amount, that is, the detection signal corresponding to the derived / accommodated amount of the liquid supply hose with respect to the delivery unit.

  On the other hand, the liquid supply hose is generally formed of an elastic member having flexibility in view of handling of the liquid supply hose itself at the time of liquid supply operation, and in view of operability of the liquid supply nozzle at the tip. Therefore, derivation / storage of the supply hose to the delivery unit (feeding / winding of the supply hose to the hose reel, etc.), the hydraulic pressure acting during the fuel supply operation, the weight of the supply nozzle at the tip and the internal flow path are the fuel. Due to the dead weight of the liquid supply hose filled with the above, the length of the liquid supply hose increases with use in the fuel supply operation.

  As a result, in the suspended fuel supply device, when the length of the liquid supply hose is increased with use in the fuel supply operation, the liquid supply nozzle is initially adjusted and set to a predetermined lift position (for example, a fuel supply position, a standby position). (Position, storage position) does not stop moving up and down, and the position of the liquid supply nozzle moves up and down (lifting height position).

  This misalignment of the lift position affects the good operability of the liquid supply nozzle and the liquid supply hose during the liquid supply operation, so the gas station administrator has noticeable the position shift of the liquid supply nozzle. In such a case, the installation contractor or the maintenance contractor must be requested to adjust and set the derivation / storage amount of the liquid supply hose corresponding to each lifting position. In particular, when the liquid supply hose is new, there is so-called initial elongation of the hose, so that the liquid supply nozzle is moved up and down in a short period from the start of use, for example, one week after the start of use, corresponding to this initial elongation. Had to perform maintenance work.

  The present invention has been made in view of the above-described problems of the suspended fuel supply apparatus, and even if the length of the liquid supply hose is elongated due to use in the fuel supply operation, the liquid supply nozzle associated therewith is extended. It is an object of the present invention to provide a suspended fuel supply device that can suppress the vertical displacement.

  Therefore, in order to solve the above-described problem, the present invention is based on the use of the suspended fuel supply device in the fuel supply operation in order to suppress the displacement of the raising / lowering position of the supply nozzle due to the extension of the supply hose. Thus, the derived / accommodated amount of the liquid supply hose corresponding to each lift position of the liquid supply nozzle is automatically corrected.

To this end, the present invention provides a liquid supply hose tip at the tip of a liquid supply hose, which is measured by fueling means from the liquid supply means and suspended from a delivery unit provided at a high place. And a hose derivation / storage mechanism for derivation of the liquid supply hose from the delivery unit / storage into the delivery unit; Hose derivation / storage amount measuring means for measuring the derivation / storage amount of the liquid supply hose by the derivation / storage mechanism, and data based on a predetermined output position of the liquid supply nozzle based on the measurement output of the hose derivation / storage amount measurement means Elevating position storing means stored in the elevating position, operating means for instructing elevating and lowering of the liquid supply nozzle at the tip of the liquid supply hose to a predetermined elevating position stored in the elevating position storage means, and the operating means of In order to position the liquid supply nozzle at a predetermined lift position corresponding to the operation input by the operation input, the data corresponding to the predetermined lift position stored in the lift position storage means and the hose derivation / storage amount Hose lifting control means for driving and controlling the hose derivation / storage mechanism based on comparison with the derivation / storage amount of the liquid supply hose measured by the measurement means, and the liquid supply target including raising / lowering of the liquid supply nozzle For repeating the fuel supply operation for the liquid supply target so as to suppress the deviation of the predetermined raising / lowering position of the liquid supply nozzle due to the extension of the length of the liquid supply hose, which increases with the repetition of the fuel supply operation for the liquid supply hose Corresponding to a predetermined lift position stored in the lift position storage means to be compared by the hose lift control means according to the usage state of the liquid supply hose that accompanies. Data, or a lifting position correction control means for correcting the derivation / storage amount of the liquid supply hose which is measured by the hose outlet / storage amount measuring means, the lifting position correction control means repeatedly in the fuel supply working Corresponding to either the cumulative amount of fuel fed from the liquid feeding means as the usage state of the liquid feeding hose or the cumulative number of times of raising / lowering of the liquid feeding nozzle based on the operation input of the operating means , A lift position for storing data corresponding to a predetermined lift position stored in the lift position storage means, or a correction amount for the derivation / storage amount of the liquid supply hose measured by the hose derivation / storage amount measurement means An integrated amount of the liquid supply nozzle based on an integrated amount of fuel supplied from the liquid supply means measured by the measurement means or an operation input of the operation means, including a correction data table A correction amount corresponding to any one of the ascent times is selected from the ascending / descending position correction data table, and a predetermined ascending / descending operation stored in the ascending / descending position storage unit to be compared by the hose ascending / descending control unit with the selected amount of correction The data corresponding to the position or the derivation / storage amount of the liquid supply hose measured by the hose derivation / storage amount measuring means is corrected .

  According to the suspended fuel supply device of the present invention, even when the length of the liquid supply hose is elongated due to the use of the fuel supply operation, it is possible to suppress the vertical displacement of the liquid supply nozzle associated therewith. Reduce maintenance work for adjusting the position of the nozzle ascending / descending position, prevent changes in operability during the liquid supply work of the liquid supply nozzle and liquid supply hose, and maintain good operability over a long period of time Can do.

It is a block diagram of the suspension type fuel supply apparatus as one embodiment of the suspension type fuel supply apparatus of the present invention. It is a schematic block diagram of one Example of the delivery unit which comprises a suspension type oil supply apparatus. It is output explanatory drawing of the rotary encoder of a 2 phase pulse train output system as an Example of a raising / lowering amount detector. It is related with the control apparatus of a suspension type oil supply apparatus, and is a system block diagram of a control apparatus and each part. It is the figure which showed one Example of the raising / lowering position setting table. It is explanatory drawing of an example of each raising / lowering position of the fueling nozzle at the time of installing a suspension type fueling apparatus in the gasoline fueling station. It is a comparison contrast figure of the raising / lowering position of the installation initial state in a suspension type oil supply apparatus, and the state where the oil supply hose extended. It is the figure which showed one Example of the raising / lowering position correction data table. It is the flowchart which showed one Example of the acquisition process of the raising / lowering position correction data which a control apparatus performs. It is the flowchart which showed one Example of the hose raising / lowering control process which a control apparatus performs. It is the figure which showed the other Example of the raising / lowering position setting table. It is the figure which showed the other Example of the raising / lowering position correction data table. It is the flowchart which showed the other Example of the acquisition process of the raising / lowering position correction data which a control apparatus performs. It is the flowchart which showed the other Example of the hose raising / lowering control process which a control apparatus performs.

  Hereinafter, an embodiment of a suspended fuel supply apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of a suspended fuel supply system as an embodiment of a suspended fuel supply system according to the present invention.

  FIG. 2 is a schematic configuration diagram of an embodiment of a delivery unit that constitutes a suspended oil supply system.

  In the figure, a refueling station site 1 is provided with a building 2 such as an office 2, a refueling area 3 where refueling work is performed, and a high place 4 including, for example, a ceiling, a canopy, or a beam above the refueling area 3. Is formed. One end of the pipe 5 constituting the oil / liquid passage communicates with the underground tank 6, and the other end extends through the high place 4 and is connected to the delivery unit 14. The oil / liquid passage including the pipe 5 is provided with a liquid feeding means including a pump 8 driven by a pump motor 7 and a measuring means including a flow meter 9 provided with a flow rate transmitter 10. . Further, in the illustrated example, a proportional solenoid valve 11 used for stopping oil supply such as preset oil supply that automatically supplies the oil liquid by a preset amount of oil is provided on the outflow side of the flow meter 9. .

  The high place 4 is provided with a delivery unit 14 as a hose raising / lowering mechanism, and an oil supply hose 13 having an oil supply nozzle 12 at the tip is suspended from the delivery unit 14 so as to be able to be raised and lowered. For example, as shown in FIG. 2, the delivery unit 14 includes a hose reel 16 rotatably supported in a long box-like casing 15 having a hose outlet, and an oil supply hose 13 is attached to the hose reel 16. The base end side is fixed and wound. The base end side of the oil supply hose 13 communicates with the other end of the pipe 5 extending from the high place 4, and the oil liquid discharged from the pump 8 of the liquid supply means is supplied to the oil supply hose 13 and the oil supply nozzle 12. It is supplied via the flow meter 9 of the measuring means.

  In addition, an elevating motor 17 for rotating the hose reel 16 forward / reversely is provided in the casing 15. The elevating motor 17 is constituted by a motor that can rotate forward / reversely, and is connected to the hose reel 16 via a transmission mechanism 18 such as a chain, and rotates the hose reel 16 in an interlocking manner. The delivery unit 14 drives the elevating motor 17 to rotate the hose reel 16 forward or backward, feeds the oil supply hose 13 from the hose reel 16 to lead out the oil supply nozzle 12 from the casing 15, and the hose reel. The oil supply nozzle 12 is accommodated in the casing 15 by causing the oil supply hose 13 to be wound up by 16. Thereby, the fueling nozzle 12 is moved up and down with respect to the ground of the fueling area 3.

  Further, a lift amount detector 19 is provided in the casing 15 as lift position detecting means for detecting the lift position of the fuel nozzle 12 when the fuel nozzle 12 and the fuel hose 13 are lifted and lowered. The raising / lowering amount detector 19 is connected to the hose reel 16 or the raising / lowering motor 17 via a transmission mechanism 20 such as a chain, and by measuring the amount of rotation of the hose reel 16, the feeding amount (or the feeding hose 13) (or The amount of raising / lowering of the fueling nozzle 12 is detected from the winding amount) and the raising / lowering position of the fueling nozzle 12 is obtained. This lift amount detector 19 is constituted by, for example, a two-phase pulse train output type rotary encoder, and is capable of detecting not only the rotation amount of the hose reel 16 but also its rotation direction (forward / reverse rotation). From this rotational direction, the supply of the oil supply hose 13 from the hose reel 16 or the winding of the oil supply hose 13 to the hose reel 16 is determined.

  FIG. 3 is an output explanatory diagram of a two-phase pulse train output type rotary encoder as an embodiment of the lift detector.

  FIG. 3A shows a detection output of the lift amount detector 19 when the hose reel 16 is rotated forward, that is, when the oil supply nozzle 12 is lowered from the delivery unit 14 due to the supply of the oil supply hose 13 from the hose reel 16. It is. In this case, the phase of the A-phase pulse train output is advanced with respect to the B-phase pulse train output.

  FIG. 3 (b) shows the movement of the lift detector 19 when the hose reel 16 is reversed, that is, when the oil supply nozzle 12 is raised toward the delivery unit 14 by winding the oil supply hose 13 around the hose reel 16. Detection output. In this case, the phase of the A-phase pulse train output is delayed with respect to the B-phase pulse train output.

  Further, in the casing 15, as shown in FIG. 2, a cam switch mechanism for detecting a reference position for detecting a reference position serving as a reference when the amount of raising / lowering of the fuel nozzle 12 is measured by raising / lowering the fuel nozzle 12. 21 is provided.

  The reference position detection cam switch mechanism 21 includes a disc-shaped cam 23 having a notch 22 formed at a predetermined position on the peripheral surface, and a detection switch 24 provided facing the peripheral surface of the disc-shaped cam 23. It is configured. The output state of the detection switch 24 is changed by engaging the not-shown operating piece with the notch 22 facing the disc-shaped cam 23, and the predetermined rotational position of the disc-shaped cam 23, that is, the reference position is detected. Is detected. The disk-like cam 23 rotates at a reduced speed in proportion to the rotation of the hose reel 16 through a reduction mechanism (not shown). In the present embodiment, for example, the speed reduction mechanism is such that the disc-shaped cam 23 does not rotate once for the amount of rotation (number of rotations) of the hose reel 16 when the oil supply hose 13 wound around the hose reel 16 is fed out. Thus, the rotation of the hose reel 16 is decelerated. That is, in the up-and-down movement of the oil supply nozzle 12 between the lower end position and the upper end position, the rotation of the hose reel 16 is decelerated so that the change in the switch output state of the detection switch 24 does not occur twice. To communicate.

  Therefore, the reference position detecting cam switch mechanism 21 sets one rotation amount position in the rotation amount range of the hose reel 16 as the notch 22 regardless of the difference in the installation state of the delivery unit 14 for each filling station. The detection switch 24 can be detected as a reference position by engagement with the operating piece.

  When the suspended oil supply device is shipped from the factory, the oil supply hose 13 provided with the oil supply nozzle 12 at the tip is wound around the hose reel 16 and stored in the casing 15 so as to be easily transported to the installation location. Since it is shipped, the reference position detection cam switch mechanism 21 is shipped in the state where the operating piece of the detection switch 24 is engaged with the notch 22 of the disc-shaped cam 23 at the time of factory shipment. During the delivery, the relative position between the operating piece of the detection switch 24 and the hose reel 16 and the notch 22 of the disc-shaped cam 23 is prevented from shifting.

  The relative positional relationship between the operating piece of the detection switch 24 and the notch 22 of the disc-like cam 23 can be adjusted independently of the rotational position of the hose reel 16. Thereby, at the installation site of the suspension type fueling device, for example, in accordance with the ascending / descending position of any one of the storage position A, the standby position B, and the fueling position C, or from the storage position A In accordance with the upper end position X of the oil supply nozzle 12 near the upper delivery unit 14, the operating piece of the detection switch 24 is engaged with the notch 22 of the disc-like cam 23, and the switch output state of the detection switch 24 changes. As described above, the relative positional relationship between the two can be changed and adjusted.

  In addition, the casing 15 of the delivery unit 14 is provided with a receiver 25 that receives wireless transmission signals related to various operation instructions from the lifting operation unit 26, and the receiver 25 transmits the received various operation instructions to the control device 40. To supply.

  The raising / lowering operation unit 26 adjusts the raising / lowering positions (for example, the oiling position C, the standby position B, the storage position A) of the oiling nozzle 12 and the oiling hose 13, and between predetermined raising / lowering positions of the oiling nozzle 12 during the oiling operation ( For example, various operation instructions such as raising / lowering at two of three preset raising / lowering positions consisting of a refueling position C, a standby position B, and a storage position A), setting a preset value at the time of preset refueling, and the like can be performed. An operation input unit 27 and a transmitter 28 for transmitting various operation instructions according to operations of the operation input unit 27 to the receiver 25 of the delivery unit 14 by radio signals are provided.

  As shown in FIG. 2, the operation input unit 27 of the lifting operation unit 26 includes an adjustment setting mode for each lifting position (storage position A, standby position B, fueling position C) of the oil supply nozzle 12 and the oil supply hose 13 and presets. A mode changeover switch 29 operated to change various modes such as refueling and preset value setting input modes, etc., and an operation input confirmation operation in a mode selected based on the operation of the mode changeover switch 29. Between the retracted position C and the standby position B in which the setting switch 30 is operated, the emergency stop switch 31 is operated to stop the operation of the suspension type oiling device in an emergency, the oil supply nozzle 12 and the oil supply hose 13 are adjusted. The storage / standby raising / lowering switch 32 operated to move up and down is adjusted and the oil supply nozzle 12 positioned at the standby position B which is adjusted and set is adjusted and set. The lowering switch 33 operated to lower the fueling position A to the lowering position 33, the raising switch 34 operated to raise the fueling nozzle 12 positioned at the adjusted fueling position A to the adjusted standby position B, and the like. Various operation switches are provided. The lowering switch 33 and the raising switch 34 are positioned at a desired height position in the adjustment setting mode of the raising / lowering positions of the oil supply nozzle 12 and the oil supply hose 13 by the switching operation of the mode change switch 29 described above. Therefore, it also serves as a reverse drive / stop operation switch and a forward drive / stop operation switch of the raising / lowering motor 17.

  An oil supply amount indicator 35 is provided at a position where the customer can easily see, such as a high place of the building 2. The oil supply amount indicator 35 is signal-connected to the control device 40, and displays oil supply information such as the amount of oil supplied to the vehicle during the oil supply operation. Further, in the present embodiment, the oil supply amount indicator 35 also displays guidance display of adjustment setting work for each raising / lowering position such as the storage position A, the standby position B, and the oiling position C in the adjustment setting mode of the raising / lowering position of the oiling nozzle 12. It is possible.

  The control device 40 includes a microcomputer and the like, and receives various operation instructions from the lifting operation unit 26 received by the receiver 25, and the rotation amount of the hose reel 16 as shown in FIG. In addition, upon receiving various inputs such as a detection output corresponding to the forward / reverse rotation direction and a unit flow rate pulse from a flow rate transmitter 10 attached to the flow meter 9, a pump motor 7, a proportional solenoid valve 11, and an elevator Control of each part of the suspension type oil supply device including the motor 17 and the oil supply amount indicator 35 is performed.

  FIG. 4 is a system configuration diagram of the control device and each unit related to the control device of the suspension type oil supply device.

  Since the control device 40 controls each part of the suspension type oil supply device, the elevating position adjustment setting means 41, the hose elevating control means 42, the liquid supply control means 43, the oil supply calculation display control means 44, the elevating position correction control means 45, etc. Functions as various control means.

  For example, as the lift position adjustment setting means 41, the control device 40 is in a state where the adjustment setting mode of the lift position of the fuel nozzle 12 and the fuel hose 13 is instructed by the operation of the mode switch 29 of the lift controller 26. In accordance with the operation position of the lowering switch 33 or the raising switch 34, the raising / lowering motor 17 is controlled to move downward / upward according to the operation position of the lowering switch 33 or the raising switch 34 in correspondence with the storage position A, the standby position B, and the oiling position C. After moving to the desired lift height position, the current lift height position is detected as the corresponding lift position (storage position A, standby position B, fueling position C) according to the operation instruction of the setting switch 30. This is set based on the detection output of the device 19.

  Further, as the hose elevating control means 42, the control device 40 operates the elevating operation in a state where, for example, the refueling operation mode other than the elevating position adjustment setting mode described above is instructed by the operation of the mode changeover switch 29 of the elevating operation unit 26. Between the standby position B and the storage position A set as the lift position adjustment setting means 41 by the operation instruction of the storage / standby lift switch 32 of the container 26, and the lift position adjustment setting means by the operation instruction of the lowering switch 33 or the raising switch 34. In order to move the fuel supply nozzle 12 up and down between the standby position B and the fuel supply position C set as 41, the lift motor 17 is driven / stopped based on the detection output of the lift detector 19.

  In addition, as the liquid feeding control means 43, the control device 40, when the oil supply nozzle 12 is lowered from the standby position B to the oil supply position C for the oil supply operation in the above-described oil supply operation mode state, The pump motor 7 and the proportional solenoid valve 11 are driven to feed liquid to start feeding liquid from the pump 8 to the oil supply nozzle 12, and when the oil supply corresponding to the preset value is completed, or the emergency stop switch 31 of the lifting operation unit 26 When the refueling operation is completed or interrupted when the operation instruction of the lift switch 34 is supplied or stopped, the pump motor 7 and the proportional solenoid valve 11 are driven to stop liquid supply, and the supply / supply stop of the oil liquid to the oil supply nozzle 12 is performed. To control.

  Further, as the refueling calculation display control means 44, the control device 40 receives unit flow rate pulses supplied from the flow rate transmitter 10 attached to the flow meter 9 during replenishment of oil to the refueling target by operating the refueling nozzle 12. The fuel amount Q is calculated based on the fuel amount information, and the fuel amount information including the fuel amount Q is displayed and controlled on the fuel amount indicator 35. When the preset fuel amount is set, the calculated fuel amount Q is set to the preset value. Comparing from time to time, the completion of refueling corresponding to the preset value is determined. In addition, the control device 40, as the refueling calculation display control means 44, in parallel with the calculation display of the oil amount Q for each refueling operation to such a refueling target, the maintenance time, the oil replenishment time in the tank, etc. For the purpose of management, based on the unit flow rate pulse supplied from the flow rate transmitter 10 attached to the flow meter 9, the total lubrication amount Qt from the initial installation to the present is calculated and stored. Also works.

  As the lift position correction control means 45, the control device 40 corrects the lift height position of the fuel nozzle 12 corresponding to the storage position A, standby position B, and fuel position C set as the lift position adjustment setting means 41. Even if the length of the liquid supply hose is elongated due to use in the refueling operation, the elevating position (storage position A, standby position B, refueling position C) of the refueling nozzle 12 moved up and down as the hose elevating control means 42 Suppresses the height position change.

  Next, the configuration of the control device 40 functioning as the various means 41 to 45 described above as the lift position adjustment setting means 41, the hose lift control means 42, and the lift position correction control means 45 will be described in detail.

  In the control device 40 including a microcomputer or the like, the CPU of the microcomputer functions as a control unit for the lift position adjustment setting means 41, the hose lift control means 42, and the lift position correction control means 45. The attached ROM stores a control program for causing the CPU to function as the lift position adjustment setting means 41, the hose lift control means 42, and the lift position correction control means 45. Similarly, the attached non-volatile RAM includes a lift pulse counter 51, a lift position setting table 52, a lift position correction data table 53, etc. used in these controls, and an integrated fuel supply amount of the fuel supply calculation display control means 44. Elevating position memory 54 for storing the current elevating position of the refueling nozzle 12 of the hose elevating control means 42 (any one of the storage position A, the standby position B, and the refueling position C) for calculating and storing Qt. 55, a target elevating position table 56 for storing target elevating position data of each elevating position corrected for the extension of the oil supply hose, and the like are also configured.

  The count value of the up / down pulse counter 51 is reset by a change in the detection signal supplied from the reference position detection cam switch mechanism 21. That is, when the operating piece of the detection switch 24 is engaged with the notch 22 of the disc-shaped cam 23, the detection signal of the detection switch 24 is switched from OFF to ON, or the operating piece of the detection switch 24 is the disc shape. When the detection signal of the detection switch 24 is switched from ON to OFF by detaching from the notch 22 of the cam 23, the count value P is reset to zero (P = 0).

  In addition, the up / down pulse counter 51 detects and outputs from the up / down amount detector 19 for each input of each pulse corresponding to each unit rotation amount of the hose reel 16 in the two-phase pulse train as shown in FIG. In addition, the forward / reverse rotation direction of the hose reel 16, that is, the feeding (leading) / winding (housing) of the oil supply hose 13 is determined, and the count value P is incremented or decremented based on the determination result.

  As a result, the up / down pulse counter 51 causes the current rotation amount of the hose reel 16 from the rotation reference position of the hose reel 16 in which the operating piece of the detection switch 24 is engaged with the notch 22 of the disc-shaped cam 23, that is, fueling. The feeding / winding amount of the hose 13 is measured by the count value P.

  The raising / lowering position setting table 52 is a rotation amount from the rotation reference position of the hose reel 16 corresponding to each of the raising / lowering positions of the storage position A, standby position B, and oil supply position C, that is, storage position A, standby position B, oil supply position. This is a storage unit for storing the count values P (A), P (B), and P (C) of the up / down pulse counter 51 corresponding to each of the C up / down positions as the respective height setting positions.

  FIG. 5 is a diagram showing an example of the elevation position setting table.

  And the adjustment setting of each raising / lowering height position of these storage position A, the standby position B, and the fueling position C at the time of installation of the suspension type fueling apparatus in each gasoline filling station is demonstrated, referring FIG.

  FIG. 6 is an explanatory diagram of an example of the raising / lowering positions A, B, and C of the fueling nozzle at the time when the suspended fueling device is installed in the gasoline filling station.

  As described above, at the time of shipment of the suspension type oiling device from the factory, the oiling hose 13 having the oiling nozzle 12 at the tip is wound around the hose reel 16 so as to be easily transported to the installation place and stored in the casing 11. Shipped in a state that has been done. At this time, the reference position detecting cam switch mechanism 21 is shipped in a state where the operating piece of the detecting switch 24 is engaged with the notch 22 of the disc-like cam 23, and the operating piece of the detecting switch 24 is in the middle of delivery. And the notch 22 of the disc-shaped cam 23 are not displaced. In addition, in the hose reel 16 at that time, the oil supply hose 13 is, for example, a deli that is above the storage position A defined by the relationship with the lower surface of the casing 11 in which the hose outlet of the delivery unit 14 is formed. It is wound around the upper end position X of the fueling nozzle 12 in the vicinity of the Veri unit 14.

  Therefore, when the delivery unit 14 is installed at the gasoline filling station, the fuel nozzle 12 at the tip of the hose appears from the hose outlet on the lower surface of the casing 15 from within the casing 15 of the delivery unit 14 attached to the high place 4. When this is done, as shown in FIG. 6 (1), the reference switch is in the reference position in which the operating piece of the detection switch 24 is engaged with the notch 22 of the disc-shaped cam 23, that is, the fuel supply nozzle 12 is in the upper end position X. .

  After the installation work including the electric wiring work is completed, the installation contractor or the like can change the installation state of the delivery unit 14 or the refueling work state specific to the gasoline filling station by operating the lifting operation unit 26 from the ground. In addition, the raising / lowering positions of the storage position A, the standby position B, and the fueling position C are adjusted and set.

  The adjustment setting of each raising / lowering position A, B, C is the adjustment of the raising / lowering position of the oil supply nozzle 12 and the oil supply hose 13 by operating the mode change switch 29 of the raising / lowering operation device 26 after energizing the suspension type oil supply device. After switching to the setting mode, the control device 40 serves as the lift position adjustment setting means 41 at each position in the order of, for example, the storage position A, the standby position B, and the refueling position C based on the operation instructions from the lift controller 26. The corresponding elevation height position is set sequentially.

  For example, first, as shown in FIG. 6 (2), the oil supply nozzle 12 located at the upper end position X is rotated forward / reversely by the raising / lowering motor by operating the lowering switch 33 or the raising switch 34. The storage position A is set by operating the setting switch 30 after being moved up and down such that the storage position A below the upper end position X is at the height position Ha from an appropriate site surface.

  At this time, the detection signal of the cam switch mechanism 21 for detecting the reference position is switched from ON to OFF by the rotation of the hose reel 16 when the oil supply nozzle 12 is lowered from the upper end position X. After P is reset to zero, the feed amount (feed length) L (of the oil supply hose 13 from the upper end position X, that is, in this case, the rotation reference position of the hose reel 16 detected by the reference position detection cam switch mechanism 21. a0) is measured with the pulse count value P corresponding to each unit rotation amount of the hose reel 16 based on the detection output from the elevation detector 19 shown in FIG.

  As a result, the count value Pa0 of the elevation pulse counter 51 when the setting switch 30 is operated is stored in the elevation position setting table 52 by the operation of the setting switch 30 as shown in FIG. It is stored as elevation position setting data P (A).

  Subsequently, after the storage position A, the standby position B and the refueling position C are sequentially shown in FIGS. 6 (3) and (4) by the same operation of the lowering switch 33 or the raising switch 34 and the setting switch 30. Then, when the height position from the appropriate site surface is adjusted and set as Hb and Hc, the lift position setting table 52 is set in the standby position B and the refueling position C from the rotation reference position of the hose reel 16, respectively. The count values Pb0 and Pc0 of the up-and-down pulse counter 51 corresponding to the feed amounts (feed lengths) L (b0) and L (c0) of the oil supply hose 13 are the standby position B and the oil supply position C as shown in FIG. The lift position setting data P (B) and P (C) are stored.

  Here, the relationship between the count values Pa0, Pb0, and Pc0 is Pa0 ≦ Pb0 <Pc0. At the time of this adjustment setting, the feed amounts L (a0), L (b0), L () of the hose 13 represented by the count values Pa0, Pb0, Pc0 of the lift pulse counter 51 stored in the lift position setting table 52 c0) is the height distance between the upper end position X and the storage position A (Hx−Ha), the height distance between the upper end position X and the standby position B (Hx−Hb), the upper end position X and the fueling position. It is equal to the height distance from H (Hx-Hc).

  Thus, after the storage position A, the standby position B, and the oil supply position C are adjusted and set at the time of installation of the suspension type oil supply device, the mode change switch 29 of the lifting / lowering operation device 26 is operated to change the operation mode. After switching from the adjustment setting mode of the raising / lowering position of the nozzle 12 and the fueling hose 13 to the fueling work mode, the lifting operation device 26 is changed according to the start of the service, the start of the service, the end of the service, or the end of the service. On the basis of the operation instructions (operation inputs) of the storage / standby raising / lowering switch 32, the lowering switch 33, and the raising switch 34 included in the operation input unit 27, the control device 40 serves as the hose raising / lowering control means 42 from the raising / lowering position setting table 52. The count values Pa0, Pb0, Pc0 of the lift pulse counter 51 corresponding to the lift positions A, B, C of the movement destination are set as target positions (target values), and the count of the target positions is performed. Pa0, Pb0, Pc0 and based on a comparison between the count value P of the current elevation pulse counter 51, thereby lifting the filling nozzle 12 and the oil supply hose 13 between the two positions.

  Specifically, at the time of starting the gas station where the fueling nozzle 12 is located at the storage position A, the control device 40 causes the fueling nozzle at the storage position A to be input by an operation input of the storage / standby lift switch 32 of the lifting operation unit 26. 12, the count value Pb0 of the up-and-down pulse counter 51 set corresponding to the standby position B is read from the up-and-down position setting table 52 to lower the position to the standby position B prepared for the refueling operation. Is set as a target position for positioning the fueling nozzle 12 at the height position Hb corresponding to. Then, the control device 40 drives the elevating motor 17 to rotate in the normal direction to rotate the hose reel 16 in the normal direction, and feeds the oil supply hose 13 from the hose reel 16 to lower the oil supply nozzle 12 in the storage position A.

  Along with the downward movement of the oil supply nozzle 12, the count value P of the elevation pulse counter 51 is calculated by the control device 40 based on the detection output of the elevation amount detector 19, that is, the rotation amount of the hose reel 16, that is, the feed amount of the oil supply hose 13. In accordance with L, the count value Pa0 when the oil supply nozzle 12 is located at the storage position A is incremented for each unit rotation amount of the hose reel 16, that is, for each predetermined feed amount of the oil supply hose 13. In addition, when the count value P of the lift pulse counter 51 reaches the count value Pb0 as the target position, the control device 40 stops the forward rotation drive of the lift motor 17 and stops the hose reel 16 from rotating. Thus, the fueling nozzle 12 is positioned at the standby position B. At this time, the standby position B is stored in the lift position memory 55 instead of the storage position A.

  On the other hand, when the refueling nozzle 12 is located at the standby position B in preparation for the start of the refueling operation at the end of the gas station, the control device is operated by the operation input of the storage / standby elevating switch 32 of the elevating operation unit 26. 40 reads the count value Pa0 of the elevation pulse counter 51 set in correspondence with the storage position A from the elevation position setting table 52 in order to raise the oil supply nozzle 12 at the standby position B to the storage position A. Is set as a target position for positioning the fuel supply nozzle 12 at the height position Ha corresponding to the storage position A. And the control apparatus 40 reversely drives the raising / lowering motor 17, reversely rotates the hose reel 16, winds up the oil supply hose 13 around the hose reel 16, and raises the oil supply nozzle 12 in the standby position B.

  Along with the upward movement of the oil supply nozzle 12, the count value P of the up / down pulse counter 51 is determined by the control device 40 based on the detection output of the up / down amount detector 19, that is, the amount of rotation of the hose reel 16, that is, the winding of the oil supply hose 13. In accordance with the take-up amount L, the count value Pb0 when the oil supply nozzle 12 is located at the standby position B is decremented for each unit rotation amount of the hose reel 16, that is, for each predetermined take-up amount of the oil supply hose 13. In addition, when the count value P of the lift pulse counter 51 reaches the count value Pa0 as the target position, the control device 40 stops the reverse drive of the lift motor 17 and stops the hose reel 16 from rotating. Then, the fueling nozzle 12 is positioned at the storage position A. At this time, the storage position A is stored in the lift position memory 55 instead of the standby position B.

  On the other hand, when the refueling nozzle 12 is positioned at the standby position B in preparation for the start of the refueling operation, the control device 40 causes the operation of the lowering switch 33 of the elevating operation unit 26 for performing the refueling operation to In order to lower the fueling nozzle 12 to the fueling position C, the count value Pc0 of the lift pulse counter 51 set corresponding to the fueling position C is read from the lift position setting table 52, and this corresponds to the fueling position C. It is set as a target position for positioning the fuel supply nozzle 12 at the height position Hc. Then, the control device 40 drives the elevating motor 17 to rotate in the normal direction to rotate the hose reel 16 in the normal direction, and feeds the oil supply hose 13 from the hose reel 16 to lower the oil supply nozzle 12 at the standby position B.

  Along with the downward movement of the oil supply nozzle 12, the count value P of the up / down pulse counter 51 is calculated by the control device 40 based on the detection output of the up / down amount detector 19, that is, the feed amount of the oil supply hose 13. In accordance with the amount L, the count value Pb0 when the fueling nozzle 12 is located at the standby position B is incremented for each unit rotation amount of the hose reel 16, that is, for each predetermined feed amount of the fueling hose 13. Then, when the count value P of the lift pulse counter 51 reaches the count value Pc0 as the target position, the control device 40 stops the forward rotation drive of the lift motor 17 and stops the hose reel 16 from rotating. Then, the fueling nozzle 12 is positioned at the fueling position C. At this time, the refueling position C is stored in the lift position memory 55 instead of the standby position B.

  On the other hand, at the end of the refueling operation, the control device 40 raises the refueling nozzle 12 at the refueling position C to the standby position B by the operation input of the ascent switch 34 of the elevating operation unit 26. The count value Pb0 of the up / down pulse counter 51 set corresponding to the standby position B is read out and set as a target position for positioning the fuel supply nozzle 12 at the height position Hb corresponding to the standby position B. . And the control apparatus 40 drives the raising / lowering motor 17 reversely, reverses the hose reel 16, winds up the oil supply hose 13 around the hose reel 16, and raises the oil supply nozzle 12 in the oil supply position C.

  Along with the upward movement of the oil supply nozzle 12, the count value P of the up / down pulse counter 51 is determined by the control device 40 based on the detection output of the up / down amount detector 19, that is, the amount of rotation of the hose reel 16, that is, the winding of the oil supply hose 13. In accordance with the take-up amount L, the count value Pc0 when the oil supply nozzle 12 is located at the oil supply position C is decremented for each unit rotation amount of the hose reel 16, that is, for each predetermined take-up amount of the oil supply hose 13. Then, when the count value P of the lift pulse counter 51 reaches the count value Pb0 as the target position, the control device 40 stops the reverse drive of the lift motor 17 and stops the hose reel 16 from rotating. Then, the fueling nozzle 12 is positioned at the standby position B. At this time, the standby position B is stored in the lift position memory 55 instead of the fuel supply position C.

  By the way, in such a suspension type oil supply device, the oil supply hose 13 is formed by an elastic member having flexibility in consideration of the operation of the oil supply hose 13 itself at the time of the oil supply operation and the operability of the oil supply nozzle 12 at the tip. Yes. Therefore, the lead-out / storage of the oil supply hose 13 with respect to the delivery unit 14 (feeding / winding of the oil supply hose 13 with respect to the hose reel 16), the hydraulic pressure acting during the oil supply operation, the weight of the oil supply nozzle 12 at the tip and the internal flow The length of the oil supply hose 13 is increased with use of the oil supply operation due to the weight of the oil supply hose 13 filled with the oil liquid.

  FIG. 7 is a comparative view of the ascending / descending position between the initial installation state and the state where the oil supply hose is extended in the suspended oil supply system.

  Specifically, in the state where the length of the oil supply hose has not yet been extended at the beginning of the installation of the suspension type oil supply device, the operation of the detection switch 24 of the reference position detection cam switch mechanism 21 as shown in FIG. The hose length Lxa corresponding to the height distance (Hx−Ha) between the upper end position X and the storage position A is in the reference position state where the piece is engaged with the notch 22 of the disc-shaped cam 23. The hose length Lab equivalent to the height distance (Ha−Hb) between the storage position A and the standby position B, which is equal to the hose feed / winding length La0 represented by the count value Pa0 of the lift pulse counter 51. Is equal to the hose feed / rewind length (Lb0-La0) represented by the count value (Pb0-Pa0) of the up / down pulse counter 51, and the height distance (Hb- The hose length Lbc corresponding to Hc) is the count value (Pc0− It is equal to the hose feed / winding length (Lc0−Lb0) represented by Pb0).

  However, along with the use in the refueling operation, the refueling hose 13 is stretched over the entire length. Therefore, in the lead-out state of the oil supply hose 13 as shown in FIG. 7, the hose length position from the base end side of the oil supply hose 13 to the upper end position X corresponding to the count value start position of the lift pulse counter 51 is also displaced. Thereby, the length position part of the oil supply hose 13 corresponding to the upper end position X from the base end side at the beginning of installation corresponds to an extension δ0 of the length of the oil supply hose 13 from the base end to the upper end position X at the beginning of installation, The position is lowered from the upper end position X. Similarly, the length position portion of the oil supply hose 13 corresponding to the base end side from the initial installation to the storage position A is the height distance between the upper end position X and the storage position A in addition to the elongation δ0. The hose length Lxa corresponding to (Hx−Ha) is lowered from the storage position A by the extension δa. In addition to the elongations δ0 and δa, the length position portion of the oil supply hose 13 corresponding to the base end side from the initial installation side to the standby position B is the height distance (Ha) between the storage position A and the standby position B. The hose length Lab corresponding to -Hb) is lowered from the standby position B by the extension δb. The length position portion of the oil supply hose 13 corresponding to the oil supply position C from the base end side at the beginning of installation is a height distance between the standby position B and the oil supply position C in addition to the elongations δ0, δa, and δb. The hose length Lbc corresponding to (Hb−Hc) is lowered from the refueling position C by the elongation δc.

  Accordingly, assuming that the feed / winding amount (derived / stored amount) of the oil supply hose 13 for raising and lowering between the raising and lowering positions A, B, and C of the fueling nozzle does not change, the raising and lowering positions A and B after extending. , C are lowered by the length (δ0 + δa + δb + δc) from the initial height positions Ha, Hb, Hc, respectively. The length is not counted, that is, cannot be detected by the lift amount detector 19.

  Furthermore, in the delivery unit 14 that employs a hose raising / lowering mechanism in which the oil supply hose 13 is wound and stored on the hose reel 16, the cross section of the oil supply hose 13 wound on the hose reel 16 is also crushed from the original circular shape. As a result, the lead-out / storage amount of the oil supply hose 13 relative to the rotation amount of the hose reel 16 begins to decrease, and the length (δ0 + δa + δb + δc) that cannot be detected by the lift detector 19 further increases. Become.

  Therefore, in the suspension type oil supply device, even when the length of the oil supply hose 13 is initially increased due to use in the oil supply operation, the lift positions A, B, C at the initial time of the oil supply nozzle 12 are set. In order to prevent the height positions Ha, Hb, and Hc from changing, the elevation positions are set as the target positions (target values) of the elevation positions A, B, and C in the elevation position setting table 52 shown in FIG. It is necessary to correct the data Pa0, Pb0, and Pc0 based on the count δp of the up / down pulse counter 51 corresponding to the above-mentioned non-counted hose elongation (δ0 + δa + δb + δc).

  Therefore, as shown in FIG. 8, in order to correct the lift position setting data Pa0, Pb0, and Pc0 as the target positions according to the degree of elongation of the oil supply hose 13 that accompanies the use in the oil supply operation with respect to the initial length of installation. The lift position correction data δp is stored in the lift position correction data table 53.

  FIG. 8 is a diagram showing an example of the elevation position correction data table.

  In the elevation position correction data table 53 shown in FIG. 8, the degree of elongation of the oil supply hose 13 associated with the use in the oil supply operation with respect to the original installation length is associated with an increase in the integrated amount of oil obtained in advance by actual machine experiments and simulations. It is stored as lift position correction data δp for correcting the lift position setting data Pa0, Pb0, Pc0 corresponding to each value range of the integrated oil supply amount.

  That is, in the lift position correction data table 53 shown in FIG. 8, for example, when the oil supply hose 13 of the suspension type fuel supply apparatus at the time of installation is in the range of 0 to 4 kl, the lift positions A, B, C Although the change in the height position relative to the initial height positions Ha, Hb, Hc is not considered, the total lubrication amount is in the range of 5-9, 10-14, 15-19, 20-kl. When the refueling hose 13 is used, the retracted position A, the standby position B, and the refueling position C are set to the lift position counter data Pa0, Pb0, Pc0 as the target positions at the time of installation, and the count of the lift pulse counter 51 is 5,9, This indicates that the height position corresponding to 12, 14 pulses is lowered, and the lift position correction data δp = 5, 9, 12, 14 is stored.

  Next, with respect to the suspension type fueling device of the present embodiment, with respect to the lifting position correction control process performed by the control device 40 as the lifting position correction control means 45 and the hose lifting control process performed as the hose lifting control means 42, FIG. This will be described with reference to FIG.

  FIG. 9 is a flowchart showing an embodiment of the process for acquiring the elevation position correction data performed by the control device.

For example, the control device 40 performs processing for acquiring the elevation position correction data at a predetermined timing shown in the following 1) to 7).
1) Before hose lifting control when the storage / standby lift switch 32 is operated at the storage position A or the standby position B.
2) After the oil supply nozzle 12 is moved to the standby position B or the storage position A by the hose lifting control.
3) Before the hose lowering control when the lowering switch 33 is operated at the standby position B.
4) After the oil supply nozzle 12 is moved to the oil supply position C by the hose lowering control.
5) Before hose lift control when lift switch 34 is operated at refueling position C.
6) After the oil supply nozzle 12 is moved to the standby position B by the hose raising control.
7) At the time of turning on the power supply of the suspension type lubricator.

  In this acquisition process, the control device 40 first reads the integrated oil supply amount Qt calculated and stored in the oil supply amount integrated counter 54 (step S11). Based on the integrated oil supply amount Qt, the elevation position correction data table 53 is read. From the above, the elevation position correction data δp of the corresponding fuel supply nozzle 12 is acquired (step S12).

  Then, the control device 40 raises / lowers position setting data Pa0, Pb0, Pc0 as target positions (target values) of the respective raising / lowering positions A, B, C at the beginning of installation, and the obtained raising / lowering position correction data δp of the fueling nozzle 12. Based on the above, corrected target positions (target values) Pa1, Pb1, and Pc1 corresponding to the lift positions A, B, and C are calculated and acquired (step S13).

  For example, when the current cumulative oil supply amount Qt is 3 kl, δp = 0 is acquired using the lift position correction data table 53 shown in FIG. Accordingly, the target lift position (target value) data Pa1, Pb1, and Pc1 corresponding to the lift positions A, B, and C in this case remain the lift position setting data Pa0, Pb0, and Pc0 at the initial installation, and the target lift position The position table 56 stores the ascending / descending position setting data Pa0, Pb0, Pc0 at the time of installation as they are. Similarly, when the current integrated fuel supply amount Qt is 11 kl, δp = 9 is acquired using the elevation position correction data table 53 shown in FIG. As correction target positions (target values) Pa1, Pb1, and Pc1 corresponding to the lift positions A, B, and C, Pa1 = Pa0−δp = Pa0−9, Pb1 = Pa1 + Lab = Pa0−9 + (Pb0−Pa0) = Pb0-9, Pc1 = Pa1 + Lab + Lbc = Pc0-9 are acquired.

  When the control device 40 obtains the target lift position data Pa1, Pb1, Pc1 corresponding to the lift positions A, B, C, it is updated and stored in the target lift position table 56, and the target lift position data Pa1, Pb1, Pc1 is stored. Based on the operations of the storage / standby raising / lowering switch 32 at the storage position A or the standby position B, the lowering switch 33 at the standby position B, and the raising switch 34 at the oiling position C, the oiling nozzle 12 and the oiling hose 13 are raised / lowered. Control is performed as shown in FIG.

  FIG. 10 is a flowchart showing an example of the hose lifting control process performed by the control device.

  In the fueling work mode state, when the gas station operator operates any of the storage / standby lifting switch 32, the lowering switch 33, or the lifting switch 34 of the lifting operation unit 26 and the receiver 25 receives the operation instruction (step S31). ), The control device 40 reads the lift position where the fueling nozzle 12 is currently located from the lift position memory 55 (step S32), and determines whether the operation instruction is valid in the hose lift control process (step S32). Step S33). Here, the effective operation instruction is, for example, an operation instruction by the operation of the storage / standby lift switch 32 at the storage position A, an operation instruction by the operation of the storage / standby lift switch 32 or the lowering switch 33 at the standby position B, The operation instruction by the operation of the raising switch 34 at the fueling position C is indicated. An invalid operation instruction refers to, for example, an operation instruction by operating the lower switch 33 or the upper switch 34 at the storage position A, an operation instruction by operating the upper switch 34 at the standby position B, and the like.

  When the received operation instruction is a valid operation instruction, the control device 40 reads any one of the data Pa1, Pb1, Pc1 corresponding to the operation instruction from the target lift position table 56, and sets the target lift position Pt. (Step S34). For example, when the storage / standby raising / lowering switch 32 is operated at the storage position A, the data Pb1 is read. When the lowering switch 33 is operated at the standby position B, the data Pc1 is read. The data Pa1 is read out when 32 is operated, and the data Pb1 is read out when the ascent switch 34 is operated at the refueling position C and set as the target elevating position Pt. In contrast, when the received operation instruction is an invalid operation instruction, the control device 40 ends the hose elevating control process and does not actually raise or lower the fuel supply nozzle 12.

  When the control device 40 sets the target lifting position Pt, depending on whether the movement of the fueling nozzle 12 to the target lifting position Pt is ascending or descending from the current ascending / descending position (step S35), as follows. Control each part.

  When the movement of the fuel supply nozzle 12 from the current raising / lowering position is descending, the control device 40 drives the raising / lowering motor 17 to rotate in the forward direction and starts derivation (feeding) from the delivery unit 14 of the oil supply hose 13. (Step S41).

  Thereafter, the control device 40 checks whether or not a change has occurred in the detection output state of the reference position detection cam switch mechanism 21 (step S42), and the change in the detection output state of the reference position detection cam switch mechanism 21 has occurred. If it has occurred, the count value of the lift pulse counter 51 is reset to zero (step S43), and the drive of the lift motor 17 is stopped (step S51). In the case of the present embodiment, the reference position is adjusted and set to the upper end position X above the storage position A. Therefore, the lifting position data stored at the lifting position memory 55, that is, the moving position lifting position data is stored. , Update and store the reference position (upper end position X). When there is no change in the detection output state of the reference position detection cam switch 21, the control device 40 is supplied with the count value P of the elevation pulse counter 51 from the elevation amount detector 19, FIG. , (B) is incremented based on the input of the up / down pulse forming the pulse train output, and the up / down pulse is counted (step S44). In addition, the control device 40 rotates the hose reel 16 based on the input frequency of the up / down pulse corresponding to the up / down speed of the fuel nozzle 12 and the phase relationship between the A-phase and B-phase pulse train outputs of the up / down pulse. (Step S45), and a stop determination frequency in which the input frequency of the up / down pulse is predetermined (for example, 70 [Hz] when the normal up / down speed of the oiling nozzle 12 is 9 [mm / pulse]) Is checked (step S46), and whether the rotation direction of the hose reel 16 is the descending direction (step S48).

  As a result of the confirmation, if the input frequency of the lift pulse does not exceed the stop determination frequency, the control device 40 has an abnormality or failure in the lift motor 17, the lift amount detector 19, and the transmission mechanisms 18, 20. It is determined that the error amount corresponding to the oil supply amount indicator 35 is displayed and the corresponding error mode is set (step S47), and the driving of the elevating motor 17 is immediately stopped (step S51). As a result, for example, even if the hose reel 16 rotates, the fueling nozzle 12 does not stop descending when the raising / lowering pulse train output is not output due to the failure of the raising / lowering amount detector 19, and is further wound around the hose reel 16 in reverse. It is possible to prevent damage such as failure.

  When the rotation direction of the hose reel 16 is the upward direction (step S48), the storage / standby lift switch 32, the drop switch 33, or the lift switch 34 of the lift controller 26 and the operation instructions of the switches 32 to 35 are provided. The forward / reverse rotation of the hose reel 16 based on the above, that is, the lead-out / housing of the oil supply hose 13 is not supported. 19, it is determined that a mistake in wiring between the A-phase and B-phase pulse train outputs output from 19 has occurred, and similarly, an error notification corresponding to the oil supply amount indicator 35 is displayed to display the corresponding error mode. While setting (step S49), the driving of the lifting motor 17 is immediately stopped (step S51). Accordingly, it is possible to prevent an erroneous operation of the raising / lowering movement of the fuel supply nozzle 12 due to the operation of the storage / standby raising / lowering switch 32, the lowering switch 33, or the raising switch 34 of the raising / lowering operation device 26.

  On the other hand, when the input frequency of the up / down pulse exceeds a predetermined stop determination frequency and the rotation direction of the hose reel 16 is also in the down direction, the control device 40 counts the count value of the up / down pulse counter 51. It is determined whether or not P has reached the target lift position Pt (step S50). When the count value P of the lift pulse counter 51 has not reached the target lift position Pt (that is, when P <Pt), the control device 40 assumes that the fuel supply nozzle 12 has not yet reached the target lift position. The processes described in steps S42 to S50 described above are repeated. If the control device 40 determines that the count value P of the lift pulse counter 51 has reached the target lift position Pt by repeating the processing shown in steps S42 to S50 (step S50), it drives the lift motor 17. After stopping (step S51), the moving position raising / lowering position data stored in the raising / lowering position memory 55 at the time of starting lifting is updated and stored in the lifting position data corresponding to the target lifting position Pt when the lifting / lowering is completed. The elevation control process is terminated.

  On the other hand, if the refueling nozzle 12 is moved up from the current elevating position in step S34 described above, the elevating motor 17 is driven in reverse to store the refueling hose 13 in the delivery unit 14 (winding up). ) Is started (step S61).

  Thereafter, the control device 40 checks whether or not a change has occurred in the detection output state of the reference position detection cam switch 21 (step S62), and a change has occurred in the detection output state of the reference position detection cam switch 21. If yes, the count value of the up / down pulse counter 51 is reset to zero (step S63) and the drive of the up / down motor 17 is stopped (step S71). In this embodiment, since the reference position is adjusted and set to the upper end position X above the storage position A, the driving of the lifting motor 17 is stopped and stored in the lifting position memory 55. The lifting position data at the start of lifting, that is, the movement source is updated and stored in the reference position (upper position X). When the change in the detection output state of the reference position detection cam switch mechanism 21 does not occur, the control device 40 supplies the count value P of the up / down pulse counter 51 as it is from the up / down amount detector 19, FIG. ) And (b) are decremented based on the input of the up / down pulse forming the pulse train output, and the up / down pulse is counted (step S64). At the same time, the control device 40 rotates the hose reel 16 based on the input frequency of this up / down pulse corresponding to the up / down speed of the fueling nozzle 12 and the phase relationship between the A-phase and B-phase pulse train outputs of this up / down pulse. The direction is calculated (step S65), whether the input frequency of the up / down pulse exceeds a predetermined stop determination frequency (step S66), and whether the rotation direction of the hose reel 16 is the upward direction (step S66). Check S68).

  As a result of the confirmation, if the input frequency of the lift pulse does not exceed the stop determination frequency, the control device 40 has an abnormality or failure in the lift motor 17, the lift amount detector 19, and the transmission mechanisms 18, 20. When it is determined that the error is detected, an error notification corresponding to the oil supply indicator 35 is displayed to set the corresponding error mode (step S67), and the drive of the lifting motor 17 is immediately stopped (step S71). Thereby, for example, a failure of the lift amount detector 19 can be detected.

  When the rotation direction of the hose reel 16 is the lowering direction, the hose reel based on the operation instructions of the storage / standby elevating switch 32, the lowering switch 33, or the raising switch 34 of the elevating operation unit 26 and the switches 32 to 35 is provided. It is determined that the forward / reverse rotation of 16, that is, the lead-out / housing of the oil supply hose 13 is not supported, and an error notification corresponding to the fuel supply amount indicator 35 is displayed to set the corresponding error mode (step S69). ) Immediately stop the driving of the lifting motor 17 (step S71). Accordingly, it is possible to prevent an erroneous operation of the raising / lowering movement of the fuel supply nozzle 12 due to the operation of the storage / standby raising / lowering switch 32, the lowering switch 33, or the raising switch 34 of the raising / lowering operation device 26.

  On the other hand, when the input frequency of the up / down pulse exceeds a predetermined stop determination frequency and the rotation direction of the hose reel 16 is also in the up direction, the control device 40 sets the count value P of the up / down pulse counter 51 to the target value. It is determined whether or not the lift position Pt has been reached (step S70). When the count value P of the lift pulse counter 51 has not reached the target lift position Pt (that is, when Pt <P), the controller 40 has not yet reached the target lift position. As described above, the processing described in steps S62 to S70 described above is repeated. If the control device 40 determines that the count value P of the lift pulse counter 51 has reached the target lift position Pt by repeating the processing shown in steps S62 to S70 (step S70), the drive of the lift motor 17 is performed. (Step S71), the elevator position data stored in the elevator position memory 55 at the start of the elevator, that is, the movement source elevator position data is updated and stored in the elevator position data corresponding to the target elevator position Pt when the elevator is completed, that is, The hose lifting control process is terminated.

  As described above, according to the suspension type oiling device of the present embodiment, the length of the oiling hose 13 is increased by use in the oiling operation, and the storage position A, the standby position B, the oiling position adjusted and set at the time of installation. Even if the height of the raising / lowering position of the fueling nozzle 12 such as C is deviated, the position difference of the raising / lowering position of the fueling nozzle 12 due to the extension of the fueling hose 13 corresponding to the cumulative amount of oil increased by use in the fueling operation. The correction amount δp is stored in advance in the ascending / descending position correction data table 53, and the height position of the ascending / descending position of the fueling nozzle 12 is automatically corrected based on the corresponding correction amount δp at an appropriate point in time of the integrated oil amount. As a result, even if the length of the oil supply hose 13 is elongated, it is possible to suppress the vertical displacement of the oil supply nozzle 12 and to perform maintenance work for adjusting the setting of the vertical position of the oil supply nozzle 12. Reduce, prevent operability from changing during fueling operations of the fueling nozzle 12 and the oil supply hose 13 can be maintained over a long good operability.

  In the suspension type oil supply device of the above-described embodiment, the hose raising / lowering mechanism is configured to lead / store the oil supply hose 13 with respect to the delivery unit 14 by rotating the hose reel 16 forward / reversely. A configuration may be adopted in which a hose guide roller that guides / stores the hose 13 is provided inside, and the hose guide roller is driven to rotate forward / reversely by a motor. Moreover, although the raising / lowering position of the refueling nozzle 12 is set to the three positions of the storage position A, the standby position B, and the fueling position C, the storage position A and the standby position B may be the same position. Further, the reference position is set as the upper end position X as the length position of the oil supply hose 13 corresponding to the upper position of the lift position, but if it is within the initial length range of the oil supply hose 13, the reference position detection cam switch It is also possible to change and set as appropriate by adjusting the mechanism 21. In this case, the hose length corresponding to the height distance (Ha−Hb) between the storage position A and the standby position B is the extension δ0 of the length of the oil supply hose 13 from the base end to the upper end position X at the time of installation. The height of the storage position A is smaller than the elongation δb of the length Lab and the elongation δc of the hose length Lbc corresponding to the height distance (Hb−Hc) between the standby position B and the fueling position C. Considering that the change has little influence on the refueling operation, the reference position is set to the storage position A at the beginning of installation, and the detection of the reference position detection cam switch 21 is performed regardless of the count value P of the up / down pulse counter 51. It is also possible to control lifting and lowering by output.

  Various modifications can be made to the hose lifting / lowering control configuration and the lifting / lowering position correction control configuration of the control device 40, and one embodiment thereof will be described with reference to FIGS. 11 to 13.

  FIG. 11 is a diagram showing another embodiment of the lift position setting table.

  The lift position data of the lift position setting table 152 shown in FIG. 11 includes the hose length Lxa corresponding to the height distance (Hx−Ha) between the upper end position X and the lift position A of the fueling nozzle 12 shown in FIG. The hose length Lab corresponding to the height distance (Ha-Hb) between the lift positions AB and the hose length Lbc corresponding to the height distance (Hb-Hc) between the lift positions BC are derived / The number of lift pulses Pa0, Pb0-Pa0, Pc0-Pb0 supplied from the lift detector 19 when stored is stored as lift position setting data P (A), P (B), P (C). .

  FIG. 12 is a diagram showing another embodiment of the elevation position correction data table.

  In the ascending / descending position correction data table 153 shown in FIG. 12, the ascending / descending position correction data table 53 shown in FIG. 8 stores whether or not the correction amount δp has already been corrected for the corresponding range of the integrated oil supply amount Qt. In this configuration, a corrected flag F is added.

  When this corrected flag F is “1 (ON)”, the correction by the corresponding lift position correction data is completed, and when it is “0 (OFF)”, the corresponding lift position correction data. This indicates that the correction by is incomplete. Then, at the beginning of installation of the suspension type fueling device, all the corrected flags F are set to “0 (OFF)” incomplete correction.

  Further, in the case of the present embodiment, the correction amount pulse δp is not the uncounted hose elongation (δ0 + δa + δb + δc) shown in FIG. Minutes (Δδ0 + Δδa + Δδb + Δδc) are stored.

  FIG. 13 is a flowchart showing another embodiment of the processing for acquiring the elevation position correction data performed by the control device. In the acquisition processing of the elevation position correction data shown in FIG. 13, the same individual processing as the acquisition processing of the elevation position correction data shown in FIG.

  Further, in this embodiment, for the sake of simplicity of explanation, the oil supply hose 13 is operated based on the operation of raising / lowering the raising / lowering position AB of the fueling nozzle 12, that is, the operation of the storage / standby raising / lowering switch 32 at the storage position A or the standby position B. Hereinafter, an example of executing the correction processing of the elevation height position of the oil supply nozzle 12 due to the elongation of the oil supply will be described.

In FIG. 13, the control device 40 performs processing for acquiring the elevation position correction data at a predetermined timing shown in the following 1) to 7), for example.
1) Before hose lifting control when the storage / standby lift switch 32 is operated at the storage position A or the standby position B.
2) After the oil supply nozzle 12 is moved to the standby position B or the storage position A by the hose lifting control
3) Before the hose lowering control when the lowering switch 33 is operated at the standby position B.
4) After the oil supply nozzle 12 is moved to the oil supply position C by the hose lowering control.
5) Before hose lift control when lift switch 34 is operated at refueling position C.
6) After the oil supply nozzle 12 is moved to the standby position B by the hose raising control.
7) At the time of turning on the power supply of the suspension type lubricator.

  Then, in this acquisition process, the control device 40 first reads the integrated oil supply amount Qt calculated and stored in the oil supply amount integrated counter 54 (step S12), and obtains the current raising / lowering position of the oil supply nozzle 12 and the integrated oil supply amount Qt. Based on the elevation position correction data table 153, the current elevation position correction data δp of the corresponding fuel supply nozzle 12 is acquired (step S12).

  When the corresponding corrected flag F is incompletely corrected “0 (OFF)” (step S112), the controller 40 raises / lowers position setting data P (B) = Pb0− between the raising / lowering positions AB. Based on Pa0 and the acquired δp, corrected lift position data Pa (B) = (Pb0−Pa0) −δp when the storage / standby lift switch 32 is operated at the storage position A, stored / standby at the standby position B The corrected lift position data Pb (B) = (Pb0−Pa0) + δp when the lift switch 32 is operated is calculated and acquired (step S113), and the corrected flag F is set to the correction complete “1 (ON)”. At the same time, the correction instruction flag Fab is set to “1 (ON)”. Note that, at the beginning of installation of the suspension type fueling device, the correction instruction flag Fab is reset to ‘0 (OFF)’.

  FIG. 14 is a flowchart showing another embodiment of the hose lifting control process performed by the control device 40. In addition, in the hose raising / lowering control process shown in FIG. 14, about the same individual process as the hose raising / lowering control process shown in FIG. 10, it represents with the same code | symbol.

  In the fueling work mode state, when the gas station operator operates any of the storage / standby lifting switch 32, the lowering switch 33, or the lifting switch 34 of the lifting operation unit 26 and the receiver 25 receives the operation instruction (step S31). ), The control device 40 reads the elevation position where the current fueling nozzle 12 is currently located from the elevation position memory 55 (step S32), and determines whether or not the operation instruction is valid for the hose elevation control. (Step S33). Here, the effective operation instruction is, for example, an operation instruction by operation of the storage / standby lift switch 32 at the storage position A, an operation instruction by operation of the storage / standby lift switch 32 or the lowering switch 33 at the standby position B, The operation instruction by the operation of the raising switch 34 at the fueling position C is indicated. Further, the invalid operation instruction refers to, for example, an operation instruction by operating the lower switch 33 or the upper switch 34 at the storage position A, an operation instruction by operating the upper switch 34 at the standby position B, and the like.

  When the received operation instruction is a valid operation instruction, the control device 40 has data P (A) = Pa0, P (B) = Pb0−Pa0, P (C) = Pc0−Pb0 corresponding to the operation instruction. , Pa (B) = (Pb0−Pa0) −δp, Pb (B) = (Pb0−Pa0) + δp is read from the target lift position table 56 and set as the target lift position Pt (step S134). ). For example, when the storage / standby raising / lowering switch 32 is operated at the storage position A, the data P (B) or Pa (B) is read according to whether or not the correction instruction flag Fab is set, and at the standby position B. When the lower switch 33 is operated, or when the up switch 34 is operated at the fueling position C, the data P (C) is read, and when the storage / standby raising / lowering switch 32 is operated at the standby position B, the correction is performed. Data P (B) or Pb (B) is read according to whether or not the instruction flag Fab is set, and set as the target lift position Pt. At that time, when the control device 40 sets Pa (B) = (Pb0−Pa0) −δp or Pb (B) = (Pb0−Pa0) + δp as the target lift position Pt, the set correction instruction is set. The flag Fab is reset. This prevents the lifting / lowering position from being adjusted by the operation of the storage / standby lifting / lowering switch 32 within the range of Qt of the respective integrated oil supply amounts. In contrast, when the received operation instruction is an invalid operation instruction, the control device 40 ends the hose elevating control process and does not actually raise or lower the fuel supply nozzle 12.

  When the target lifting position Pt is set, the control device 40 controls each part as follows according to whether the movement of the fuel supply nozzle 12 to the target lifting position Pt is up or down (step S35).

  When the movement of the fuel supply nozzle 12 from the current raising / lowering position is downward, the control device 40 resets the elevation pulse counter 51 to zero (step S141), and drives the elevation motor 17 to rotate in the forward direction. Derivation (feeding out) of the oil supply hose 13 from the Veri unit 14 is started (step S41).

  Thereafter, the control device 40 is supplied with the count value P of the up / down pulse counter 51 from the up / down amount detector 19 based on the input of the up / down pulse forming the pulse train output as shown in FIGS. 3 (a) and 3 (b). Incrementing and counting up / down pulses (step S44). Then, the control device 40 rotates the hose reel 16 based on the input frequency of the up / down pulse corresponding to the up / down speed of the fuel nozzle 12 and the phase relationship between the A-phase and B-phase pulse train outputs of the up / down pulse. (Step S45), whether the input frequency of the up / down pulse exceeds a predetermined stop determination frequency (step S46), and whether the rotation direction of the hose reel 16 is the downward direction (step S48). )

As a result of the confirmation, if the input frequency of the lift pulse does not exceed the stop determination frequency, the control device 40 has an abnormality or failure in the lift motor 17, the lift amount detector 19, and the transmission mechanisms 18, 20. It is determined that the error amount corresponding to the oil supply amount indicator 35 is displayed and the corresponding error mode is set (step S47), and the driving of the elevating motor 17 is immediately stopped (step S51).

  When the rotation direction of the hose reel 16 is the lowering direction, the hose reel based on the operation instructions of the storage / standby elevating switch 32, the lowering switch 33, or the raising switch 34 of the elevating operation unit 26 and the switches 32 to 35 is provided. It is determined that the forward / reverse rotation of 16, that is, the derivation / storage of the oil supply hose 13 is not supported, and similarly, an error notification corresponding to the fuel supply amount indicator 35 is displayed to set the corresponding error mode. (Step S49), the drive of the lifting motor 17 is immediately stopped (Step S51).

  When the input frequency of the up / down pulse exceeds the predetermined stop determination frequency and the rotation direction of the hose reel 16 is also the forward rotation direction (downward direction), the control device 40 It is determined whether or not the count value P has reached the target lift position Pt (step S50). When the count value P of the lift pulse counter 51 has not reached the target lift position Pt (that is, when P <Pt), the control nozzle 40 has not yet reached the target lift position Pt. As a matter of course, the processing described in steps S44 to S50 described above is repeated. If the control device 40 determines that the count value P of the elevation pulse counter 51 has reached the target elevation position Pt by repeating the processing shown in steps S42 to S50 (step S50), the elevation motor 17 is driven. (Step S51), the lifting position data stored in the lifting position memory 55 at the start of lifting, that is, the lifting position data of the movement source is updated and stored in the lifting position data corresponding to the target lifting position Pt when the lifting is completed, that is, The hose lifting control process is terminated.

  On the other hand, if the movement of the fuel nozzle 12 from the current raising / lowering position is ascending in step S34 described above, the raising / lowering pulse counter 51 is reset to zero (step S161), and the raising / lowering motor 17 is driven in reverse. Then, the storage (winding) of the oil supply hose 13 into the delivery unit 14 is started (step S61).

  Thereafter, the control device 40 checks whether or not a change has occurred in the detection output state of the reference position detection cam switch 21 (step S62), and a change has occurred in the detection output state of the reference position detection cam switch 21. If yes, the count value of the up / down pulse counter 51 is reset to zero (step S63) and the drive of the up / down motor 17 is stopped (step S71). In this embodiment, since the reference position is adjusted and set to the upper end position X above the storage position A, the driving of the lifting motor 17 is stopped and stored in the lifting position memory 55. The lift position data at the start of lifting, that is, the movement source is updated and stored at the reference position (upper end position X) corresponding to the target lifting position Pt when lifting is completed. When the detection output state does not change, the control device 40 is supplied with the count value P of the up / down pulse counter 51 from the up / down amount detector 19 as shown in FIGS. 3 (a) and 3 (b). The increment / decrement pulse is counted based on the increment / decrement pulse input that forms the pulse train output (step S64). At the same time, the control device 40 rotates the hose reel 16 based on the input frequency of this up / down pulse corresponding to the up / down speed of the fueling nozzle 12 and the phase relationship between the A-phase and B-phase pulse train outputs of this up / down pulse. The direction is calculated (step S65), whether the input frequency of the up / down pulse exceeds a predetermined stop determination frequency (step S66), and whether the rotation direction of the hose reel 16 is the upward direction (step S66). Check S68).

  As a result of the confirmation, if the input frequency of the lift pulse does not exceed the stop determination frequency, the control device 40 has an abnormality or failure in the lift motor 17, the lift amount detector 19, and the transmission mechanisms 18, 20. When it is determined that the error is detected, an error notification corresponding to the oil supply indicator 35 is displayed to set the corresponding error mode (step S67), and the drive of the lifting motor 17 is immediately stopped (step S71).

  Further, when the rotation direction of the hose reel 16 is the normal rotation direction (downward direction), the storage / standby lift switch 32, the drop switch 33, or the lift switch 34 of the lift controller 26 and the operations of the switches 32 to 35 are operated. It is determined that the forward / reverse rotation of the hose reel 16 based on the instruction, that is, the derivation / storage of the oil supply hose 13 is not compatible, and similarly, an error notification corresponding to the oil supply amount indicator 35 is displayed to cope with the error. The mode is set (step S69), and the drive of the lifting motor 17 is immediately stopped (step S71). Accordingly, it is possible to prevent an erroneous operation of the raising / lowering movement of the fuel supply nozzle 12 due to the operation of the storage / standby raising / lowering switch 32, the lowering switch 33, or the raising switch 34 of the raising / lowering operation device 26.

  On the other hand, when the input frequency of the up / down pulse exceeds a predetermined stop determination frequency and the rotation direction of the hose reel 16 is also in the up direction, the control device 40 sets the count value P of the up / down pulse counter 51 to the target value. It is determined whether or not the lift position Pt has been reached (step S70). When the count value P of the lift pulse counter 51 has not reached the target lift position Pt (that is, when P <Pt), the controller 40 has not yet reached the target lift position. As described above, the processing described in steps S62 to S70 described above is repeated. If the control device 40 determines that the count value P of the lift pulse counter 51 has reached the target lift position Pt by repeating the processing shown in steps S62 to S70 (step S70), the drive of the lift motor 17 is performed. (Step S71), the elevator position data stored in the elevator position memory 55 at the start of the elevator, that is, the movement source elevator position data is updated and stored in the elevator position data corresponding to the target elevator position Pt when the elevator is completed, that is, The hose lifting control process is terminated.

  Therefore, even in the suspension type oil supply device of the present embodiment, even if the length of the oil supply hose 13 is elongated, the displacement of the oil supply nozzle 12 can be suppressed. Maintenance work for setting adjustment can be reduced, and the operability of the oil supply nozzle 12 and the oil supply hose 13 during the oil supply work can be prevented from changing, and good operability can be maintained over a long period of time.

As described above, various modifications of the hose lifting control configuration and the lifting position correction control configuration of the control device 40 are possible. Further, in the elevation position correction data tables 53 and 153, the degree of elongation of the oil supply hose 13 associated with use in the oil supply operation with respect to the initial length of installation is accompanied by an increase in the cumulative amount of oil supply obtained in advance by actual machine experiments and simulations. Although the structure is stored as the lift position correction data δp for correcting the lift position setting data corresponding to each value range of the integrated oil supply amount, the number of times of lift between the predetermined lift positions of the fuel nozzle 12 is cumulatively counted. counter so provided that, in place of each value range of the integrated amount of oil with an increase in accumulated amount of oil, corresponding to each range associated with the increase of the count was totalized lifting number of vertical position setting data for correction It is also possible to store or change the lift position correction data δp for the purpose.

1 Filling site, 2 Building, 3 Filling area, 4 Height, 5 Piping,
6 underground tank, 7 pump motor, 8 pump, 9 flow meter,
10 Flow transmitter 11 Proportional solenoid valve 12 Refueling nozzle 13 Refueling hose
14 delivery unit, 15 casing, 16 hose reel,
17 Lifting motor, 18 Transmission mechanism, 19 Lifting amount detector, 20 Transmission mechanism,
21 Cam switch mechanism for reference position detection, 22 notch, 23 disc-shaped cam,
24 detection switch, 25 receiver, 26 lifting operation device, 27 operation input unit,
28 transmitter, 29 mode selector switch, 30 setting switch,
31 Emergency stop switch, 32 Storage / standby lift switch, 33 Down switch,
34 lift switch, 35 oil supply indicator, 40 control device,
41 lifting position adjustment setting means, 42 hose lifting control means, 43 liquid feeding control means,
44 oil supply calculation display control means, 45 lift position correction control means,
51 Lifting pulse counter 52 Lifting position setting table
53 Lifting position correction data table, 54 Oil supply amount counter,
55 Elevating position memory, 56 Correction target position table

Claims (1)

The fuel fed from the liquid feeding means is measured by the weighing means and supplied to the liquid supply target via the liquid supply nozzle at the tip of the liquid supply hose that is suspended from the delivery unit installed at a high place. A suspended fuel supply device,
A hose derivation / housing mechanism for deriving the liquid supply hose from the delivery unit / housing in the delivery unit;
A hose derivation / storage amount measuring means for measuring derivation / storage amount of the liquid supply hose by the hose derivation / storage mechanism;
Elevating position storage means in which the predetermined elevating position of the liquid supply nozzle is stored as data based on the measurement output of the hose derivation / storage amount measuring means;
Operating means for instructing to raise and lower the liquid supply nozzle at the tip of the liquid supply hose to a predetermined lift position stored in the lift position storage means;
Data corresponding to the predetermined lift position stored in the lift position storage means and the hose to position the liquid supply nozzle at a predetermined lift position corresponding to the operation input by an operation input of the operation means A hose lifting / lowering control means for driving and controlling the hose derivation / storage mechanism based on a comparison with the derivation / storage amount of the liquid supply hose measured by the derivation / storage amount measurement means;
In order to suppress the deviation of the predetermined raising / lowering position of the liquid supply nozzle due to the extension of the length of the liquid supply hose, which increases with the repetition of the fuel supply operation for the liquid supply target including the raising and lowering of the liquid supply nozzle Corresponding to a predetermined lift position stored in the lift position storage means to be compared by the hose lift control means according to the use state of the liquid supply hose accompanying the repetition of the fuel supply operation for the liquid supply target Elevating position correction control means for correcting the derivation / storage amount of the liquid supply hose measured by the hose derivation / storage amount measurement means ,
The elevating position correction control means is based on an integrated amount of fuel fed from the liquid feeding means as a use state of the liquid supply hose accompanying the repetition of the fuel supply work, or an operation input of the operating means Data corresponding to a predetermined lift position stored in the lift position storage means, or the liquid supply measured by the hose derivation / storage amount measurement means, corresponding to any of the cumulative number of lifts of the feed nozzle. A lifting position correction data table for storing the correction amount of the hose derivation / storage amount,
A correction amount corresponding to either the integrated amount of fuel fed from the liquid feeding unit measured by the metering unit or the cumulative number of times of raising / lowering the liquid supply nozzle based on the operation input of the operation unit is the lift position. Data corresponding to a predetermined lift position stored in the lift position storage means that is selected from the correction data table and compared by the hose lift control means with the selected correction amount, or the hose derivation / storage amount measurement The derivation / storage amount of the liquid supply hose measured by the means is corrected.
A suspended fuel supply apparatus characterized by the above.

Images