JPS6315195Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a nozzle switch operating mechanism for a refueling device.

The tip of the refueling hose led out from the weighing machine is equipped with a powdered oil nozzle, but when not refueling, this refueling nozzle is attached to a nozzle hanger or nozzle boot (hereinafter referred to as these) installed on the weighing machine or nozzle stand. Normally, the refueling nozzle is latched (attached and detached) to a nozzle accommodating part (referred to as a nozzle accommodating part), and when refueling, the refueling nozzle is removed from the nozzle accommodating part and refueling is performed. A nozzle switch is provided in the nozzle storage part to respond to the attachment and detachment of the refueling nozzle, and the opening and closing operations of this nozzle switch cause the refueling pump motor to be energized and
Returning the display to zero, controlling the PCS terminal, and other control operations are performed.

Previously, this type of nozzle switch operating mechanism had a complicated structure, a large number of parts, high manufacturing costs, troublesome adjustment, and was prone to malfunctions, as well as difficulty in easily performing nozzle storage and emergency stop operations. .

For example, as this type of nozzle switch operating mechanism, ``Nozzle hanger in gasoline metering machine'' disclosed in Japanese Utility Model Publication No. 51-3053 is known. This known mechanism transmits the attachment and detachment movement of the refueling nozzle to and from the nozzle boot to the weighing machine control device via a lever mechanism to perform control such as returning the indicated value to zero. Since it was located on the inside, there was a problem in that it took up a lot of space.

The present invention proposes a nozzle switch operating mechanism that eliminates the above-mentioned conventional drawbacks.

That is, the nozzle switch operating mechanism of the present invention includes a front operating plate having a missing portion, and a rear operating plate having a portion that is separably joined to the back of the front operating plate and is exposed forward through the missing portion of the front operating plate. a pin for installing the front and rear operating plates in a nozzle housing of a refueling device so that they can be swung by a refueling nozzle installed in the nozzle housing; and a nozzle switch disposed in relation to the nozzle housing. , a displacement transmission mechanism that transmits the rocking displacement of the front and rear operating plates caused by the refueling nozzle installed in the nozzle housing to the nozzle switch to operate the nozzle switch; and a displacement transmission mechanism that is installed in the nozzle housing and that operates the front operating plate. a regulating member for regulating the rocking displacement of the nozzle switch in the operating direction to a stop position necessary for the operation of the nozzle switch; and a lock mechanism that releasably locks dynamic displacement at a position beyond the stop position of the front operating plate.

The illustrated embodiment will be described in detail below.

Reference numeral 1 designates a nozzle storage section, which includes a back wall 1a fixed to, for example, a side wall H of the refueling machine housing by appropriate means;
It consists of both side walls 1b and a lower protrusion 1c having a triangular cross section. The protrusion 1c has a hole 1d on its lower surface and a horizontal through-hole 1e inside.

1f is a bolt attached to the upper inclined surface of the downward protrusion 1c.
With the nozzle rest fixed by B ₂ , its protruding piece 1
G is the slot of the lever guard LG of the refueling nozzle N.
SL is fitted and holds the nozzle N in the nozzle storage part 1. 1h is a hole into which the rod of a lock (for example, a padlock) provided on the protruding piece 1g of the nozzle rest is inserted. It is convenient to store the lock (not shown) in the horizontal through hole 1e of the protrusion 1c of the nozzle housing during business hours when the nozzle is in use.

Reference numerals 4 and 5 denote a front operating plate and a rear operating plate (hereinafter simply referred to as plates) of the nozzle switch 10, whose upper ends are connected to both side walls 1 of the nozzle housing 1.
It is swingably supported by a pin 6 bridged by b. As is clear from FIG. 3, the plate 4 is wider than the plate 5, and is provided with a missing portion (a central hole in the illustrated example) 4a. The plate 5 is slightly longer than the plate 4 and has a lower edge 5a.
protrudes slightly downward from the lower edge 4b of the plate 4.

Reference numeral 3 denotes a locking lever that forms a main part of the locking mechanism of the plate 5, and is installed between the lower portions of both side walls 1b, 1b of the nozzle storage section in the vicinity of the hole 1j in the upwardly inclined surface of the downward protrusion 1c of the nozzle storage section 1. pin 3a
It is rotatably supported by a spring 3b and biased clockwise in the figure by a spring 3b.
It is prohibited by regulations. The locking lever 3 is
In relation to the plates 4 and 5, as will be described later, the length is such that it locks on the lower edge 5a of the plate 5 but does not lock on the lower edge 4b of the plate 4 (from the pin 3a to the free tip of the locking lever 3). 3c) and location are selected.

Reference numeral 10 denotes a switch box, which is fixed to the side wall H of the weighing machine with a screw B ₁ in correspondence with the nozzle storage section 1, and stores and holds the micro switch 11 therein. 12 is a switch operating rod, 13 is this switch operating rod 12
The operating compression spring has an inner end connected to the operating compression spring, and its outer end protrudes outward through a hole h in the back wall 1a of the nozzle accommodating portion and is disposed on the back surface of the operating plate 5.

Switch operating rod 12 and operating compression spring 13
constitutes a displacement transmission mechanism that operates the nozzle switch in response to the swinging displacement of the plates 4, 5 in a return-ready manner.

In the above configuration, when the nozzle is returned to the nozzle housing part after being removed from the nozzle housing part 1 (during refueling) as shown in Figure 2, the lever guard LG of the nozzle is locked as shown in Figure 4. While pressing against the lever 3 and plate 4, the locking lever 3 is rotated counterclockwise around the pin 3a against the spring 3b, and the plate 4 and the plate 5 inside thereof are rotated together clockwise around the pin 6. The micro switch 11 is opened or closed by compressing the spring 13 through the plate 5 and pushing the switch operating rod 12 while swinging the micro switch 11 in the direction shown in FIG. Opening (or closing) this switch de-energizes the pump motor.
Refueling information processing etc. are started.

Since the rocking displacement of the plate 4 in the clockwise direction is regulated by the lower edge 4a of the plate 4 coming into contact with the stopper boss 9, the plates 4 and 5 also move beyond the stop position necessary for the operation of the nozzle switch. There is no further pushing, and therefore, depending on how the nozzle is handled, there is no risk that the plates 4, 5 will be pushed too much and the switch 11 will be damaged.

In this state (Fig. 4, when not refueling), the locking lever 3
is rotated counterclockwise by being pushed by the lever guard LG of the nozzle, so the tip 3c of the locking lever 3 is below the lower edge 5a of the plate 5, and therefore locks the plate 5. I haven't. Therefore, when the nozzle is removed from the nozzle housing 1 in this state, the plates 4 and 5 are returned to the state shown in FIG. 2 by the spring 13, the locking lever 3 is returned to the state shown in FIG. returned,
The pump motor is energized, the oil supply amount indicator returns to zero, etc.

In the refueling state shown in Figure 2, if a situation arises in which the pump motor needs to be stopped urgently and there is no time or is impossible to return the nozzle to the nozzle housing, the plate 4 Push the plate 5 through the hole 4a with, for example, a finger and insert the pin 6.
oscillate clockwise around the Due to this clockwise rocking displacement of the plate 5, its lower edge 5a pushes the locking lever 3 counterclockwise against the spring 3b, compresses the spring 13, operates the micro switch 11, and activates the pump. Bring the motor to an emergency stop. At this time, the plate 4 also swings around the pin 6 until it comes into contact with the stopper boss 9 due to its own weight or due to the touch of a finger pushing the plate 5.

Even when the plate 4 hits the stopper boss 9 and is stopped, the plate 5 is pushed further and its lower edge 5a passes over the free tip 3c of the locking lever 3,
Even if you let go of your finger pushing the plate 5 and the repulsive force of the spring 13 attempts to return the plate 5 in the counterclockwise direction, the locking lever 3 will stop the protrusion piece 1g of the lower triangular protrusion part 1c of the nozzle housing 1. Engagement corner 1
Since clockwise rotation is prevented by i, the plate 5 is held in the locked state shown in FIG. 5, and the emergency stop state is maintained.

To release this emergency stop state, return the nozzle to the nozzle housing and push the locking lever 3 against the spring 3b (rotate it counterclockwise) using the lever guard LG or with your finger. Since the plate 5 is biased counterclockwise by the compressed spring 13, the lower edge 5a of the plate 5 crosses the free tip 3c of the locking lever 3, resulting in the state shown in Fig. 4, and the emergency stop state is released. be done. If you release your finger or remove the nozzle, the state shown in Figure 2 will occur and refueling will be possible.

FIG. 6 shows a modified embodiment, in which the same reference symbols as in FIGS. 1 to 5 indicate corresponding parts.
In this embodiment, the protruding piece 1g is rotatably attached to the lower protruding part 1c of the nozzle housing,
The emergency stop state (the state corresponding to FIG. 5) can also be canceled by tilting this protruding piece. In addition, in FIG. 6, the nozzle rest 1f of the previous embodiment is not provided, but is replaced by an upper perspective surface of the nozzle housing downward protrusion 1c.

That is, the protruding piece 1g is rotatable around the pin 22 and urged counterclockwise by the spring 20a. The rotation range of protruding piece 1g is slot 1
m is defined by engaging with a pin 1n provided on the side wall of the downwardly protruding portion 1c of the nozzle storage portion. In this embodiment as well, the locking lever 3 is rotatable around the pin 3a, and the pin 1p fixed to the protruding piece 1g is engaged with the notch 3d of the locking lever 3.

Therefore, when the projecting piece 1g is rotated clockwise (tilted to the right) against the spring 20a from the emergency stop state (the state in which each member in FIG. 6 corresponds to the position in FIG. 5), the pin 1p is rotated clockwise (tilted to the right) against the spring 20a. Due to the engagement of the notch 3d, the locking lever 3 rotates or tilts counterclockwise against the spring 3b, and the lower edge 5a of the plate 5 comes off the free tip 3c of the locking lever 3, resulting in an emergency stop state. is released, and the protruding piece 1g and the locking lever 3 are returned to their original positions (FIG. 6) by the springs 20a and 3b, respectively.

Although the illustrated embodiments have been described in detail above, the present invention can be modified in various other ways. For example, the shape of the plates 4 and 5 is not limited to the illustrated example, but may be of any shape as long as it is a displacement member that has the function of the same machine. In the illustrated example, the nozzle switch 11 is opened and closed by a switch rod 12 actuated by the displacement members 4 and 5 via a spring 13, but it may be operated by a lever or a link mechanism. The switch 11 may be a non-contact switch.

As described above, according to the present invention, the two plates provided in the nozzle storage container are oscillated and displaced by the lever guard of the nozzle, so that the size of the nozzle or the size and shape of the lever guard can be changed. It can accommodate a variety of different nozzles, has a relatively simple configuration, has a small number of parts, is inexpensive to manufacture, does not require adjustment, and can easily perform nozzle storage operations and emergency stop operations.

[Brief explanation of drawings]

Fig. 1 is a side view showing a nozzle housing part of a fuel supply device implementing the present invention, Fig. 2 is a longitudinal side view of an embodiment of the present invention, Fig. 3 is a front view of the same, Figs. 4 and 5. 2 is a view similar to FIG. 2, FIG. 4 is a view showing a state in which the nozzle is stored, FIG. 5 is a view showing an emergency stop state, and FIG. 6 is a longitudinal sectional side view showing another embodiment. 1...Nozzle storage section, 1c...Downward protrusion, 3
... Locking lever, 4, 5 ... Actuation plate, 9 ...
...Stopper Boss, 10...Switchbox,
11... Nozzle switch, 12... Switch actuation rod, 13... Compression spring.

Claims (1)

[Claims for Utility Model Registration] A front actuating plate having a missing portion; and a back actuating plate having a portion that is separably joined to the back side of the front actuating plate and is exposed forward through the missing portion of the front actuating plate. , a pin for installing the front and rear operating plates in a nozzle storage part of a refueling device so as to be swingable by a refueling nozzle installed in the nozzle storage part; a nozzle switch disposed in relation to the nozzle storage part; a displacement transmission mechanism that transmits the rocking displacement of the front and rear operating plates caused by the refueling nozzle installed in the nozzle housing to the nozzle switch to operate the nozzle switch; a regulating member that restricts the rocking displacement of the nozzle switch in the operating direction to a stop position necessary for the operation of the nozzle switch; and a regulating member that restricts the rocking displacement of the nozzle switch in the operating direction of the back operating plate that is installed in the nozzle storage section. A nozzle switch operating mechanism for a fuel supply device, comprising a locking mechanism that releasably locks displacement at a position beyond the stop position of the front operating plate.