JPS6322398A - Lubricating device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a refueling device used, for example, to purposely refuel an automobile with fuel or the like.

(Prior art) As seen in Japanese Patent Application Laid-Open No. 61J-99900, this conventional pumping device has a refueling nozzle attached to a movable frame that can move forward and backward around the refueling port of the object to be refueled, and the wJ of the movable frame. Is that the same salary? In a system in which a +H nozzle is inserted into a refueling port to supply refueling, the refueling nozzle is supported by a spring against the movable frame so as to be freely retractable in 11 + line directions with a resistance of 1-, and the refueling nozzle is The refueling nozzle interferes with an object to be refueled while the movable frame is moving forward, and when the object moves away from the movable frame, the detector is activated to prevent the refueling nozzle from refueling. Anyone who makes it possible to detect errors in insertion into the mouth should be fired.

(Problem to be solved by the invention) By the way, when refueling a car, etc.

Due to misalignment of the vehicle body, the refueling nozzle may not reach the refueling port even if the movable frame is moved to the forward position.In this case, the refueling nozzle does not interfere with the vehicle body, so it does not move relative to the movable frame, and the above type does not detect the refueling nozzle. There is a possibility that a signal similar to that generated when a refueling nozzle is inserted into the refueling port may be generated, causing fuel to drip out.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus that can accurately determine whether or not a fuel nozzle has been inserted into a fuel fill port, thereby solving the above problems.

(An unsuccessful means to solve the problem) Is non-invention paid to achieve the above purpose? 8] In the case where the refueling nozzle is attached to a movable frame that can freely move forward and backward along with the refueling port of m, the refueling nozzle has a tapered portion at the tip inserted into the refueling port, and a tapered portion at the tail end of the tapered portion. forming a seat portion seated on the mouth edge of the refueling port, and supporting the refueling nozzle in a floating manner with respect to the movable frame so as to be freely movable in the @ line direction and in the radial direction against a spring; The movement stroke of the movable frame from the retracted position to the forward position on the fuel filler port side is set to be greater than the set distance between the seat portion and the mouth edge at the retracted position, and the refueling stroke to the movable frame is further set. Displacement detection means for detecting whether the position of the nozzle in the @ line direction exists in a predetermined intermediate range of the movement stroke of the refueling nozzle with respect to the movable frame is provided, and when the movable frame is in the forward position, the refueling nozzle The fuel supply nozzle is characterized in that oil is supplied from the oil supply nozzle only when the oil supply nozzle is located at the intermediate position.

(Function) When the movable frame moves forward from the retreated position, even if the refueling nozzle is slightly misaligned with respect to the refueling port, the refueling nozzle moves along the refueling port using the tapered portion at its tip as a guide. The tapered portion is accurately inserted into the fuel filler port, and the seat portion is seated on the rim of the fuel filler port.

Here, the movement stroke t1 of the movable frame from the retracted position to the forward position is set to be larger than the distance t2 between the seat portion and the mouth edge at the retracted position.

After the seat part is seated on the mouth edge and the advance of the refueling nozzle is stopped, the movable frame further moves forward, and eventually, in the forward position of the movable frame, the refueling nozzle moves from the front end position of the axial movement stroke with respect to the movable frame. △t(△1=1.-1.)
This means that the stroke will end in the middle range of the stroke.

If the refueling nozzle interferes with the object to be refueled, the refueling nozzle will move away from the movable frame by a distance greater than △t, and if the refueling nozzle does not reach the refueling port due to positional deviation of the object to be refueled, the refueling nozzle will move away from the movable frame. In either case, the refueling nozzle will no longer be located in the intermediate range described above; in other words, the refueling nozzle will be located in the intermediate range only when the refueling nozzle is inserted into the refueling port. Become.

Therefore, if the displacement detection means detects that the refueling nozzle is located in the intermediate range and refuels from the refueling nozzle, no refueling errors occur.

(Embodiment) The drawings show an embodiment in which the present invention is applied as a fuel supply system for an automobile, as shown in FIG.

A tilting frame (4) that is tilted by a cylinder (3) about an axis (2) in the longitudinal direction is installed on a support (1) placed on the side of the automobile body W that is set at the foot position. death.

A pair of longitudinal guide rails (5) (5) are fixed on the tilting frame (4) in the direction perpendicular to the axis (2) as shown in FIG. along cylinder (6)
A movable frame (7) that moves forward and backward is provided.5 The movable frame (7)
Attach the refueling nozzle (8) to the V# refueling nozzle (8) by the movement of the tilting frame (4) so that its axis line is along the axis of the fuel filler port Wa on the first side of the vehicle body W. The movable frame (7) is tilted to a predetermined refueling position, and in this state, the movable frame (7) is shown in FIG.
The refueling nozzle (8) is inserted into the refueling port Wa by moving the refueling nozzle (8) forward from the retracted position shown in FIG.

The refueling nozzle (8) has a rabbit as shown in Figure 2.

and a tapered portion (8a) at the tip to be inserted into the fuel filler port W, j.

A seat portion (8h) that sits on the mouth edge of the fuel filler port Wa is formed at the tail end of the tapered portion (8a), and a vacuum passage (8c) that opens into the tapered portion (8a). In addition, in order to push open the butterfly-type shutoff valve wb attached to the fuel filler port Wa and supply fuel, a retractable fuel pipe (8d) is inserted into the fuel nozzle (8) at the tip of the tapered portion (8a). At the same time, a cylinder (8) for making the oil supply pipe (8d) appear and retract from the cylindrical part (8e) extending toward the tail of the oil supply nozzle (8).
f), and further attach the cylindrical part (8e) to the outside of the cylindrical part (8e).
A valve unit (8g) connected to the fuel supply pipe (8d) is arranged through the slit formed in e), and the unit (8g) is connected to the fuel supply source and the vacuum passageway (8c) through a flow cap meter (not shown). ) was connected to a vacuum pump via a vaporized gas recovery device (not shown).

The refueling nozzle (8) is attached to the movable frame (7) by a spring (9).
The movable frame (7) is provided with a nuclear liquid supply nozzle (8) radially movable. A ring plate (10) is slidably inserted into the sleeve (7a) and is biased forward in the axial direction by a spring (9). , the sleeve (7a
) is fitted from the back into the tapered hole (7b) at the tip of the refueling nozzle (8) to align the refueling nozzle (8) with respect to the movable frame (7). The ring plate 1 was brought into contact with the back surface of the center seat (feb) via a thrust bearing (lυ).

According to this, the refueling nozzle (8) is connected to the movable frame (7).
In contrast, the -6 seat (8b) can freely move back in the @ line direction against the spring (9) from the front end position where it fits into the taper hole (7b), and Theno holes (7b
), the thrust bearing 011 allows the movable frame (7) to slide freely in the radial direction, even if the refueling nozzle (8) is somewhat eccentric with respect to the refueling port WaK when the movable frame (7) moves forward from the retracted position. As the nozzle (8) is inserted into the oil filler port Wa of the tapered portion (8a) at its tip, the nozzle (8) is inserted into the oil filler port Wa.
It moves in the radial direction so as to be concentric with Va, and the tenor parts (
8a) is inserted to the depth of the fuel filler port Wa I/CtE, and the seat portion (8b) is seated on the rim of the fuel filler port Wa.

In the drawing, (7c) is a support piece that supports the cylindrical part (8e) of the refueling nozzle (8) attached to the tail end of the movable frame (7), and (4a) is the support piece that supports the cylinder part (8e) of the refueling nozzle (8) attached to the tail end of the movable frame (7). A limit switch for horizontal tilting is shown.

By the way, the movement stroke t of the movable frame (7) from the backward position A to the forward position B is the set distance tz1 between the seat part (8b) and the mouth edge of the fuel filler port Wa at the backward position A.
In other words, is the distance between the two when the fuel filler port wb is in the normal position? 17, and the axial position of the refueling nozzle (8) with respect to the movable frame (8) is within the PJr constant intermediate range of the movement stroke with respect to the movable frame (3), that is, from the front end position to Δt (Δ1=1. -12) Displacement detection means (2) is provided for detecting whether or not the position exists within a certain range centered on the position where the worker left work. Note that this negative range is determined in consideration of variations in the actual distance between the seat portion (8b) and the edge of the refueling hole WaO with respect to the set distance.

The details are as shown in FIGS. 4 and 5. 1. The ring plate (10) has a slit (7dl'?11) on the circumferential surface of the sleeve (7a) and a tongue piece (IUa) projecting outward.
is protruded, and a dog piece (12a) is attached to the tongue piece (ILla).
At the same time, when the refueling nozzle (8) is in the front end position, the dog piece (1) is attached to the outer surface of the sleeve (7a).
The first proximity switch (12b) facing the dog piece (12b) and the second proximity switch (12b) facing the dog piece (12al) when the refueling nozzle (8) has moved beyond the upper = self-center position 1η.
12C) was attached to constitute the displacement detection means (2).

According to one or more configurations, when the movable frame (7) moves from the retracted position A to the forward position B, the tapered portion (8a) at the tip of the refueling nozzle (8) is inserted into the refueling port Wa. When the seat part (8b) is seated on the mouth edge, the refueling nozzle (8b)
) moves away from the front end position with respect to the movable frame (7) by Δt, and in the forward position B both proximity switches (12bH12c
) are both turned off, but during movement to the forward positions W and B, the tapered part (8a) comes into contact with the no-no-nel part around the fuel filler port Wa, and the forward movement of the fuel filler nozzle (8) is restricted. Then,
When the movable frame (7) continues to move forward, the refueling nozzle (8) moves beyond the intermediate range, the second proximity switch (12c) is turned on, and due to the displacement of the vehicle body W, the support column (1) and the vehicle body W
The gap between the fuel filler nozzle (8) and the fuel filler port W becomes too wide
When the refueling nozzle (8) does not reach the position a, the refueling nozzle (8) remains at the front end position and the first proximity switch (12b) remains turned on.

Therefore, in the forward position B, the first proximity switch (12b
) is off and the @2 proximity switch (12c) is off (11), the refueling command No. is output and the refueling nozzle (3
), it is possible to reliably prevent fuel from flowing out due to refueling when the refueling nozzle (3) is not inserted into the refueling port Wa.

In addition, when refueling, first protrude the refueling pipe (8d),
Next, the valve in the pulp unit (8g) is opened, fuel is injected from the fuel supply pipe (8d), and at the same time, vaporized gas is sucked and recovered through the vacuum passage (8c).

(Effect of the invention) As described above, according to the invention, even if the refueling nozzle is slightly eccentric with respect to the refueling port, the seat portion is seated on the edge of the refueling port using the tapered portion at the tip of the refueling nozzle as a guide. In addition to accurately inserting the refueling nozzle into the refueling port, it is also possible to check whether the refueling nozzle is inserted in a state where it touches the refueling port, not only when the refueling nozzle interferes with the object to be refueled, but also when the refueling nozzle does not reach the refueling port. It has the effect of ensuring accurate refueling without causing any spillage of fuel, etc.

[Brief explanation of drawings]

Fig. 1 is a front view of an example of the uninvented device, Fig. 2 is an enlarged front view of its main parts, and Fig. 3 is the nl-Illll of Fig. 2.
4 is an enlarged front view of the mounting portion of the displacement detecting means, and FIG. 5 is a side view taken along the line ■-■ in FIG. 4.

Claims (1)

[Claims] A refueling nozzle is mounted on a movable frame that can move forward and backward toward the refueling port of the object to be refueled, and the refueling nozzle has a tapered portion at the tip to be inserted into the refueling port, and a tail end of the tapered portion to the refueling port. The refueling nozzle is floatingly supported with respect to the movable frame so as to be freely retractable in the axial direction and movable in the radial direction against the spring. The movement stroke of the frame from the retracted position to the forward position on the refueling port side is set to be larger than the set distance between the seat portion and the mouth edge at the retracted position, and the axis of the refueling nozzle relative to the movable frame is set. Displacement detection means is provided for detecting whether the position of the refueling nozzle in the direction is within a predetermined intermediate range of the movement stroke of the refueling nozzle with respect to the movable frame, and when the refueling nozzle is in the intermediate position at the forward position of the movable frame. 1. A refueling device characterized in that the refueling nozzle supplies refueling only to