JP4191091B2 - Refueling nozzle - Google Patents

Description

  The present invention relates to a fueling nozzle used for fueling a vehicle or the like at a fueling station.

  Conventionally, at a service station of a full service system (service form in which an employee at the service station performs a refueling operation), the operation lever of the fuel supply nozzle is refueled so that employees can perform services such as window cleaning and garbage disposal during refueling. A latch (latch) for locking in the state is provided in the oil supply nozzle (see, for example, Patent Documents 1 and 2).

JP-A-2-72095 (FIGS. 2A and 2B) JP-A-4-128199 (FIGS. 1 and 6)

An example of a fueling device provided with this type of fueling nozzle is shown in FIG.
In FIG. 8, the refueling device 51 is connected to an underground fuel tank T through an oil feeding pipe 61, and the fuel oil F in the fuel tank T is pumped up by a pump P, and is supplied from a refueling nozzle 15 at the tip of the hose 54. Discharge. The refueling device 51 is provided with a flow meter 56 that detects the flow rate of the fuel oil F, and a display 58 that displays the amount of refueling according to a signal from a pulse transmitter 57 connected to the flow meter 56. ing.

  As shown in FIG. 9, a main valve 17 and a subvalve 18 are provided in the first flow path 16 in the oil supply nozzle 15, and these valves 17 and 18 are urged in a closing direction by a spring 19. . When the operation lever 21 rotates about the support shaft 22 in the valve opening direction indicated by the arrow, the valve shaft 20 slides in the valve opening direction on the right side against the spring force of the spring 19, and the main valve 17 and The sub-valve 18 opens sequentially, and the first flow path 16 and the second flow path 23 communicate with each other. A check valve 25 is slidably mounted on the valve shaft 20. The check valve 25 is urged in a direction to close the second flow path 23 by the second spring 26 and is opened by the pressure of the fuel oil. A flow path in the nozzle pipe 35 of the oil supply nozzle 15 communicates with the second flow path 23 via the third flow path 24.

  The oil supply nozzle 15 is provided with a frame-shaped guard 27 for protecting the operation lever 21 from being accidentally rotated in the valve opening direction. The guard 27 is provided with a plurality of latches 43 for locking the operation lever 21 at a predetermined position (rotation angle). The operation lever 21 is attached to the support shaft 22 so as to be slightly displaceable in the axial direction of the support shaft 22 (direction perpendicular to the paper surface), and the operation lever 21 is rotated to a position corresponding to each latch 43. After being moved, the distal end portion 21 a of the operation lever 21 can be locked to any one of the latches 43 by being displaced in the axial direction.

  When the operation lever 21 is locked to the latch 43, the valve shaft 20 is held in a state where the main valve 17 and the sub valve 18 are opened against the spring force of the spring 19, so that the operation lever 21 It is possible to continue refueling even if you take your hand off.

  By the way, in the self-service method, in order to prevent accidents, the lubrication nozzle 15 is not provided with the latch 43 so that the lubrication customer itself keeps the operation lever 21 during refueling. For this reason, for example, in a so-called split service type gas station where the full service method and the self service method are alternately performed according to the time of day, each time the service method is changed, an oil nozzle with a latch and an oil nozzle without a latch are provided. Need to be replaced. For this reason, there is a problem that fuel oil may be accidentally leaked during replacement of the fuel nozzle.

  Accordingly, one object of the present invention is to provide a fueling nozzle that can be used in both full service and self service systems without replacing the fueling nozzle.

Further, instead of exchanging the fuel nozzle, it is conceivable that a part of the fuel nozzle 15 is disassembled so that only the member on which the latch 43 is formed can be removed. In this case, the structure of the fuel nozzle 15 In addition, it is troublesome to manage a large number of removed latch members so as not to lose them.
Accordingly, another object of the present invention is to provide an oil supply nozzle that does not cause the latch member to be lost.

  In order to achieve the above object, the present invention provides an oil supply nozzle that discharges fuel oil, an operation lever for opening and closing a valve that closes the flow path of the fuel oil, and a frame shape that protects the operation lever. And a latch device that has one or more latches engaged with the operation lever to fix the position of the operation lever, and the latch device is attached to the guard, and moves the latch device relative to the guard The latch device can be fixed to the guard at a first position where the operation lever can be engaged with the latch and a second position where the operation lever cannot be engaged with the latch. A fixing means is provided.

According to the present invention, one oil supply nozzle can be selectively used as an oil nozzle with a latch and an oil nozzle without a latch according to a service method. That is, when using this refueling nozzle for full service, the latching tool is fixed at the first position so that the operation lever can be engaged with the latch. On the other hand, when the fueling nozzle is used for self-service, the latch tool is fixed at the second position so that the operation lever cannot be engaged with the latch.
Therefore, it is not necessary to replace the fuel nozzle every time the service form changes.
In addition, since the latch device can be moved and fixed to the first or second position while being attached to the guard, there is no possibility of losing the latch device.

In the present invention, the guard is provided with a lock having an engaging / disengaging portion that engages / disengages with the latch device as the fixing means .
In this case, the latch tool can be easily moved and fixed by unlocking and locking the lock with the key, and the latch tool can be reliably managed with the key.

When the fixing means is a lock, the engagement / disengagement portion is an engagement / disengagement shaft portion that protrudes and retracts, and the latch tool is a first engaged hole that fits into the engagement / disengagement shaft portion at the first position. And a second engaged hole that fits into the engagement / disengagement shaft portion at the second position.
In this way, the latch device can be positioned at the first or second position simply by fitting the locking / decoupling shaft portion of the lock into the first or second engaged hole. Becomes compact.

In the present invention, the guard includes a pair of guard plate portions that cover the operation lever and the latch device so as to sandwich the operation lever and the latch device from both sides, and the latch device is a plate that is slidably attached to at least one of the guard plate portions. It is preferable that the latch plate is in the shape of a ring.
If it carries out like this, the structure of the whole fueling nozzle will become compact.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows the appearance of a fueling nozzle 15B according to the present invention. The internal structure of the main oil supply nozzle 15B is the same as that of the oil supply nozzle 15 shown in FIG. 9 described above, and in the present embodiment, the following description will mainly focus on the differences from the conventional oil supply nozzle 15.

The refueling nozzle can be used in two states: full service and self service.
2 and 5 show the full service state of the main fuel supply nozzle, and FIGS. 6 and 7 show the self-service state of the main fuel supply nozzle.

  As shown in the exploded perspective view of FIG. 2, the guard 27 of the fueling nozzle 15B includes a pair of guard plate portions 27a and 27b. A plate-like latch plate (an example of a latching tool) 4 is attached to one guard plate portion 27b, and a lock 7 (an example of a fixing means) is provided on the other guard plate portion 27a. The pair of guard plate portions 27a and 27b cover the latch plate 4 and the distal end portion 21a of the operation lever 21 so as to be sandwiched from both sides.

Latch Plate As shown in FIG. 2, the latch plate 4 is slidably attached to the guard plate portion 27 b via a support shaft 49, and is provided to be rotatable about the support shaft 49. . As will be described later, the latch plate 4 can be fixed to the guard 27 at a first position P1 shown in FIG. 2 and a second position P2 shown in FIG.

  The latch plate 4 has three latches 43, 43, 43 that engage with the operation lever 21 in order to fix (lock) the operation lever 21 at a predetermined position. Each latch 43 is disposed at a position where the latch plate 4 can be engaged with the operation lever 21 in the full service state in which the latch plate 4 is fixed at the first position P1, while the latch plate 4 is disposed at the second position P2. In the self-service state fixed to the position, the control lever 21 is disposed at a position where it cannot be engaged. Therefore, depending on whether the latch plate 4 is fixed at the first or second position P1, P2, it is possible to select whether the oil supply nozzle 15B is an oil nozzle with a latch or an oil nozzle without a latch.

As shown in FIG. 2, the lock 7 is attached to the guard plate portion 27 a with the keyhole 71 exposed to the outside of the guard 27. The lock 7 has an engaging / disengaging shaft portion (engaging / disengaging portion) 72 that penetrates the guard plate portion 27 a and protrudes / retreats toward the latch plate 4. The engaging / disengaging shaft portion 72 is retracted / projected by unlocking / locking the lock 7.

  As shown in FIG. 3A, the latch plate 4 is formed with first and second fitted holes 41 and 42, and as shown in FIG. Thus, the latch plate 4 is fixed to the first or second position P1, P2 by being fitted into the first or second fitted holes 41, 42. That is, at the first position P1 shown in FIG. 2, the first fitted hole 41 is fitted into the engagement / disengagement shaft portion 72, and at the second position P2 shown in FIG. The hole 42 is fitted into the engagement / disengagement shaft portion 72.

Full service:
First, the case where this refueling nozzle 15B is used by a full service system is demonstrated.
In this case, the latch plate 4 is moved to the first position P1 in FIG. 2 in a state where the lock 7 in the self-service state in FIG. 7 is locked, the engaging / disengaging shaft portion 72 is projected, and the engaging / disengaging shaft portion 72 is fitted into the first fitted hole 41 of the latch plate 4. Thereby, as shown in FIG. 5, it can be set as the full service state in which the latch plate 4 was fixed to the 1st position P1.

  When refueling using this refueling nozzle 15B, the operating lever 21 in FIG. 2 is rotated in the valve opening direction around the support shaft 22 (FIG. 1), and then latched at a position corresponding to each latch 43. As shown in FIG. 5, the tip end portion 21a of the operation lever 21 can be engaged with each latch 43 by moving the operation lever 21 so as to be slightly displaced in the axial direction C of the support shaft 22 toward 43. it can.

In this way, by engaging the operating lever 21 with the latch 43, the fueling nozzle 15B is held in a state where the fuel oil is discharged. You can perform services such as cleaning windows and throwing away trash.
Since the operation lever 21 is only engaged so as to be slightly caught by the latch 43, when the tank is full during refueling, vibration of the refueling nozzle 15B when the well-known auto-stop function is activated, The engagement between the operation lever 21 and the latch 43 is released, and the discharge of the fuel oil is stopped.

self-service:
Next, the case where the main fuel supply nozzle 15B is used in a self-service manner will be described.
In this case, the latch plate 4 is moved to the second position P2 in FIG. 6 in a state where the lock 7 in the full service state in FIG. 7 is locked, the engaging / disengaging shaft portion 72 is projected, and the engaging / disengaging shaft portion 72 is fitted into the second fitted hole 42 of the latch plate 4. Thereby, as shown in FIG. 7, it can be set as the self-service state to which the latch plate 4 was fixed to the 2nd position P2.

  As shown in FIG. 7, in a state where the latch plate 4 is fixed at the second position P <b> 2, each latch 43 is disposed at a position where the operation lever 21 cannot be engaged. Accordingly, when the hand is released from the operation lever 21, the operation lever 21 (valve shaft 20) is pushed back in the valve closing direction by the spring force of the spring 19 in FIG. 9, the valves 17 and 18 are closed, and the discharge of the fuel oil is stopped. Is done. That is, in order to continue refueling, the operation lever 21 must be held by hand, and it is possible to prohibit the refueling customer from wiping windows during refueling, which is suitable for the self-service method. It can be used as the oiling nozzle 15B.

Disengagement:
By the way, when preset refueling is performed at the time of full service, refueling is completed before auto-stop is effective, and the engagement between the operation lever 21 and the latch 43 is not released, that is, the fuel oil flow path is closed. The valves 17 and 18 (FIG. 9) remain open. In this case, since the pump P in FIG. 8 is stopped when the fuel supply amount reaches the preset value, the fuel oil will not be discharged, but if the valves 17 and 18 are left open. The fuel oil is ejected as soon as the pump P is started at the next refueling.

  In order to prevent this, the main oil supply nozzle 15B releases the engagement between the operation lever 21 and the latch 43 when the oil supply is completed and the oil supply nozzle 15B is returned to the nozzle holding portion (not shown) of the oil supply device. It has the release means for doing.

  As shown in FIG. 1, the oil supply nozzle 15B is provided with a plate-like release plate 8 as the release means. The release plate 8 has a protrusion 82 that protrudes outward from the guard 27. As shown in FIG. 3B, the release plate 8 has an insertion hole 88 through which the support shaft 89 is inserted, and a long hole 81 formed along a part of a concentric circle with the insertion hole 88 at the center. Is formed.

  As shown in FIGS. 2 and 6, the release plate 8 is provided between the guard plate portion 27 b and the latch plate 4 and is movably attached to the guard plate portion 27 b via a support shaft 89. It has been. In a state where the latch plate 4 is fixed at the first or second position P1, P2, the engagement / disengagement shaft portion 72 of the lock 7 is inserted into the elongated hole 81. Therefore, the release plate 8 is swingable in the range of the long hole 81 around the support shaft 89.

  As shown in FIG. 3C, the release plate 8 is formed with a plurality of protrusions 83 that protrude toward the other guard plate portion 27a. Each projection 83 has a substantially spherical surface, and is arranged in the vicinity of each latch 43 fixed at the first position P1, as shown in FIG. When the oil supply nozzle 15B is returned to the nozzle holding part (not shown) of the oil supply device, the protrusion 82 comes into contact with the nozzle holding part and is pushed in the direction of the arrow D to rotate around the support shaft 89, whereby the protrusion 83 pushes up the tip 21a of the operating lever 21 engaged with the latch 43 in the axial direction C (FIG. 2). Thereby, engagement with the operation lever 21 and the latch 43 is cancelled | released, and the valves 17 and 18 (refer FIG. 9) of the oil supply nozzle 15B can be returned to a valve closing state.

  Therefore, by returning the oil supply nozzle 15B to the nozzle holding part after the end of the oil supply, the operation lever 21 is returned to the initial position, that is, the state shown in FIG. Even when the pump P is driven and the refueling operation is started when 15B is removed, the valve is reliably closed, and inadvertent discharge of fuel oil can be prevented.

When the oil supply nozzle 15B is removed from the nozzle holding portion, the release plate 8 is returned to the initial position where the protruding portion 82 of FIG. The
Further, at the time of self-service, the release plate 8 does not function, but the operation lever 21 cannot be locked to the latch 43. Therefore, even when preset oiling is performed, when the oiling nozzle 15B is returned to the nozzle holder, There is no problem because the nozzle 15B is always closed.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
For example, in the above embodiment, the lock is used as the latch plate fixing means. However, as another fixing means, the latch plate may be fixed with screws or bolts.
Further, the latch plate itself is made into a lock structure, and the lock plate is rotated by unlocking / locking the lock, and the latch plate provided to rotate integrally with the support shaft is provided with the first or second latch plate. You may make it move to a position, respectively.
Further, the latch plate does not necessarily need to be rotated around the support shaft, and may be slid linearly. That is, as long as the latch plate can be moved between the first position and the second position, any structure may be used.
Further, the latch plate may be urged by the urging means so as to return to one of the first and second positions when the fixation by the fixing means is released.
In the embodiment, a plurality of latches are provided, but only one latch may be provided.
Further, the release plate is not necessarily provided.
In addition, the pump that pumps up the fuel oil from the underground tank may be provided outside the fuel supply device, or may be an in-oil pump.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The present invention can be applied not only to an oil supply nozzle of an oil supply device installed on the ground, but also to a suspended oil supply nozzle suspended from an oil supply ceiling or the like via an oil supply hose.

It is a front view which shows an example of the oil supply nozzle concerning the Example of this invention. It is a disassembled perspective view which shows the full service state which moved the latch plate to the 1st position. (A), (b) is a front view which respectively shows a latch plate and a cancellation | release plate, (c) is a side view which shows a cancellation | release plate. It is a side view which shows the state by which the latch plate was fixed by the engagement / disengagement shaft part. FIG. 6 is a partially cutaway view showing a state in which an operation lever is engaged with a latch in a full service state. It is a disassembled perspective view which shows the self-service state which moved the latch plate to the 2nd position. FIG. 6 is a partially cutaway view showing a state in which the operation lever cannot be engaged with the latch in the self-service state. It is a schematic block diagram which shows an example of the conventional oil supply apparatus. It is sectional drawing which shows an example of the conventional oil supply nozzle.

Explanation of symbols

15B: Refueling nozzle 17, 18: Valve 21: Operation lever 16, 23: Flow path 27: Guard 27a, 27b: Guard plate part 4: Latch plate (latch tool)
41: First fitting hole 42: Second fitting hole 43: Latch 7: Lock (fixing means)
72: Engaging / disengaging shaft (engaging / disengaging part)
P1: First position P2: Second position

Claims (3)

A fuel nozzle for discharging fuel oil,
An operation lever for opening and closing a valve for closing the flow path of the fuel oil;
A frame-shaped guard that protects the operating lever;
Including one or more latches engaged with the operation lever to fix the position of the operation lever, and a latch device attached to the guard,
The latch device is provided movably with respect to the guard,
A fixing means for fixing the latch device to the guard at a first position where the operation lever can be engaged with the latch and a second position where the operation lever cannot be engaged with the latch ; Here, the oil supply nozzle which provided the lock | rock which has an engagement / disengagement part engaged / disengaged to the said latch tool as said fixing means in the said guard . In Claim 1 , the said engaging / disengaging part is an engaging / disengaging shaft part which protrudes and retracts,
The latch device includes a first engaged hole that fits into the engaging / disengaging shaft portion at the first position, and a second engaged hole that fits into the engaging / disengaging shaft portion at the second position. Refueling nozzle equipped with. In Claim 1 or 2 , the guard includes a pair of guard plate portions that cover the operation lever and the latching tool from both sides,
The oil supply nozzle, wherein the latch device is a plate-like latch plate that is slidably attached to at least one of the guard plate portions.

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