JP5880606B2 - Lubrication nozzle - Google Patents

Description

  The present invention relates to an oil supply nozzle that is inserted into an oil supply port of an automobile or the like and supplies liquid (fuel supply) at a gas station.

When fuel oil is supplied to the vehicle at the filling station, after removing the fuel filler cap of the vehicle, remove the fuel nozzle from the nozzle hook of the fuel filler, insert it into the fuel filler port of the vehicle, and pull the valve opening lever to perform the fueling work. Do. After a predetermined amount of fueling, the valve opening lever is returned, the fueling nozzle is taken out from the fueling port, hooked onto the nozzle of the fueling device, and the fueling port cap of the automobile is closed.
The oil supply nozzle is configured such that when an air passage pipe opened at the tip of the nozzle is closed by liquid in the tank, an automatic valve closing mechanism is activated to stop liquid supply (see Patent Document 1). .
In this automatic valve closing mechanism, the liquid supply is stopped when the liquid level is detected even when the valve opening lever is pulled, and the pulled valve opening lever is locked by a protrusion formed on the locking bracket. It is configured as follows. By locking the pulled valve opening lever with a protrusion, an operator can perform service operations such as window cleaning and tire check during refueling.

However, in snowy areas, snow blows into the nozzle hooks, and snow accumulates on the locking fittings in the lever guard of the fueling nozzle. When this snow freezes, the protrusions become horizontal. For this reason, the valve opening lever cannot be locked to the protrusion at the next refueling, and other service work cannot be performed during refueling, which may reduce workability.
Further, even if foreign matter such as dust accumulates on the locking fitting forming the protrusion in the lever guard, the protrusion becomes horizontal and the valve opening lever cannot be locked to the protrusion.
In addition, if water accumulates in the lever guard, the water accumulated in the lever guard may get on the clothes of the operator and stain the clothes when the oiling nozzle is removed from the nozzle hook at the next refueling. is there.

JP 50-43509 A

  The present invention has been proposed in view of the above-described problems of the prior art, and when the valve opening lever is pulled for refueling, the state in which the valve opening lever is pulled can be reliably maintained. In addition, an object of the present invention is to provide an oil supply nozzle that can eliminate the inconvenience that rainwater falls on the clothes of the operator.

According to the present invention, the valve opening lever (10) for opening and closing the main valve, the locking part (40) provided on the lever guard (20) and engaged with the tip of the valve opening lever (10) , the discharge Connected to the opening provided at the tip of the pipe (3) and the negative pressure generating part provided in the middle of the flow path, the main valve receives the negative pressure from the negative pressure generating part when the opening is closed with fuel oil. in refueling nozzle with closing and automatic closing mechanism, wherein the locking portion (40) is Ri rod member (41-43) der provided plural in the space portion of the lever guard (20), the valve opening lever ( 10) The tip (13) of 10) is provided with a locking piece (30) that can be rotated by an elastic body (6). In the locking portion (40), the locking piece (30) is formed into a rod-shaped member (41-43). It is in contact .

In the present invention, it is preferable that the elastic body is biased in a direction in which the engagement of the locking portion (40) (with the tip of the valve opening lever 10) is released.

And in this invention, the said rod-shaped member (41-43) is comprised by the 1st pin (41), the 2nd pin (42), and the 3rd pin (43), The 1st pin (41) The distance between the second pin (42) and the distance between the second pin (42) and the third pin (43) are preferably set shorter than the length of the locking piece (30) .

According to the present invention having the above-described configuration, the locking portion (40) is composed of a rod-like member (for example, pins 41 to 43) provided in the space portion of the lever guard (20). It is easy to engage with the tip (13) of (10), and the tip (13) of the valve opening lever (10) and the locking portion (40) are securely engaged. Even if foreign matter such as snow or dust enters the lever guard (20), the lever can be easily operated from the gap between the rod-shaped members (for example, the pins 41 to 43) and the openings (22c, 22a, 22d, 22b). It is discharged out of the guard (20).
In addition, even if the snow freezes, the tip (13) of the valve opening lever (10) and the locking portion (40) are reliably engaged, so that it is possible to prevent operability from being deteriorated due to freezing.
Furthermore, it is difficult to accumulate snow above the rod-like members (for example, pins 41 to 43), and even if snow is accumulated, it is blown away by wind.
In addition, according to the present invention having the above-described configuration, a plate-like member (so-called “plate notch”) having protrusions is not required.

In this invention, if the said rod-shaped member (41-43) is provided with two or more, the position where the front-end | tip of a valve opening lever (10) will be latched will be set. For this reason, it is possible to freely select to increase the discharge flow rate (discharge amount per unit time) (high discharge: short-time oil supply) or reduce (low discharge: long-time oil supply).
For example, since service work such as window cleaning and tire check is performed during refueling, it is possible to select refueling for a long time.
Also, depending on the vehicle, the fuel oil supplied on the vehicle side rebounds, and the fuel oil that bounces off adheres to the tip of the refueling nozzle, so that the refueling operation is stopped frequently (so-called “automatic operation”). May occur. In such a case, it is only necessary to select to supply oil with low discharge.

In the present invention, the tip (13) of the valve opening lever (10) is provided with a locking piece (30) that can be rotated by the elastic body (6). In the locking portion, the locking piece (30) is a rod-shaped member ( If it comprises so that it may contact | abut 41-43), it will become possible to hold | maintain the valve opening lever (10) with one hand, and operativity will improve.
If the elastic body (6) is urged in the direction in which the engaging portion (40) is released (with the tip 13 of the valve opening lever 10), the elastic body for the valve opening lever (return) The valve opening lever (10) easily returns to the oil supply stop position by the elastic repulsion of the spring 5).
Therefore, the engagement between the tip (13) of the valve opening lever (10) and the locking portion (40) can be released with a light operation. In this case, when the operator continues to hold the valve opening lever (10) and does not lubricate the tip (13) of the valve opening lever (10) and the locking portion (40) (so-called refueling operation). “Manual refueling”) does not disturb the elastic repulsion of the elastic body (6).

  According to the present invention, the oil supply nozzle (100) that is being refueled can be operated in a refueling stop state by a light operation, so that the vehicle starts for some reason during refueling, and the fuel supply nozzle (100) comes out of the vehicle. Even if the oil supply nozzle (100) is dropped, the engagement between the locking piece (30) and the rod-like member (40) is released by the impact of the drop, and the valve opening lever (10) returns to the oil supply stop position. Stopped. Therefore, even if the vehicle starts during refueling and the refueling nozzle (100) comes out of the vehicle, fuel does not continue to blow out from the refueling nozzle (100).

  Further, in the present invention, if the rod-like member (43) on the oil supply nozzle side of the rod-like member (41-43) with which the latching piece (30) abuts is a stopper of the latching piece (30), the stopper (43) It is prevented that the locking piece (30) wraps around the back side (side away from the fuel supply nozzle body 1) of the bar-like members (41 to 43).

Here, when the tip (13) of the valve opening lever is pulled outward (side) by the lever guard (20) and is disengaged from the lever guard (20), the oil supply lever side (main body side) of the oil supply lever (10) ) Acts on the fulcrum (P1), and the valve opening lever (10) is broken or deformed.
On the other hand, in the present invention, if the tip (13) of the valve opening lever is guided in the space of the lever guard (20), the lever member (40) is detached from the lever guard (20) in the extending direction. This prevents the valve opening lever (10) from being held on the main body side. Therefore, the twisting force does not act on the fulcrum (P1) on the oil supply nozzle side (main body side) of the oil supply lever (10), and the valve opening lever (10) is prevented from being broken and deformed. .

  In addition to the above, in the present invention, the surface (33) on which the locking piece (30) engages with the rod-shaped member (pins 41, 42) is a movement locus (arc) of the valve opening lever tip (13). ) In the radius direction of curvature (direction perpendicular to the tangent), the frictional resistance between the locking piece (30) and the rod-shaped member (pins 41, 42) becomes the strongest, and the frictional force causes the The engagement state of the locking piece (30) and the rod-shaped member (pins 41, 42) (the state where the locking piece 30 is hooked on the rod-shaped member (pins 41, 42) or the locked state) is securely held. Is done.

It is sectional drawing which shows the principal part of the oil supply nozzle which concerns on embodiment of this invention. It is a partial expanded side view which shows the lever and lever guard of the oil supply nozzle in embodiment. FIG. 3 is a sectional view taken along the line XX in FIG. 2. It is a partial expansion perspective view which shows the lever guard and lever of the fueling nozzle in embodiment. It is explanatory drawing which shows the state which the latching member went around to the back side of the pin. It is explanatory drawing which shows the cross-sectional shape of the pin which concerns on the 1st modification of embodiment of illustration. It is explanatory drawing which shows the cross-sectional shape of the pin which concerns on the 2nd modification of embodiment shown in figure. It is explanatory drawing which shows the cross-sectional shape of the pin which concerns on the 3rd modification of embodiment shown in figure. It is a partial expanded explanatory view which shows the relative position of the latching piece and pin in embodiment of illustration. It is a latching piece and pin part expansion explanatory drawing in a prior art.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
In FIG. 1, the entire oil supply nozzle according to the embodiment of the present invention is indicated by reference numeral 100.
The oil supply nozzle 100 includes a cylinder body 1 including a valve mechanism, a grip 2, a tip pipe (hereinafter referred to as “discharge pipe”) 3, a valve opening lever 10, and a lever guard 20.

The valve opening lever 10 is formed such that a base side 11 and a tip side 12 are connected in a substantially L shape, and an end portion (hereinafter referred to as “tip portion”) 13 of the tip side 12 further extends from the root side 11. It is bent in an L shape with respect to the distal end side 12 so as to move away.
The valve opening lever 10 is pivotally supported at the end on the base side 11 so as to be rotatable around the pin P <b> 1, and the pin P <b> 1 is provided on the cylinder body 1. A pin P2 is provided at the distal end portion 13 of the valve opening lever 10, and a locking piece 30 is pivotally supported on the pin P2 so as to be rotatable. The pin P2 extends in a direction orthogonal to the paper surface of FIG.

In FIG. 1, the position of the valve opening lever 10 indicated by the dotted line and the symbol LA is, for example, the lever position when refueling is performed at the highest speed (high discharge: short-time refueling: hereinafter sometimes referred to as “LA position”). .
The position of the valve opening lever 10 indicated by the dotted line and the symbol LB is a lever position when the oil supply is performed slowly (low discharge: long-time oil supply: hereinafter may be referred to as “LB position”).
The position of the valve opening lever 10 indicated by a solid line in FIG. 1 is a lever position when fueling is not performed.
The return from the LA position and the LB position to the position of the valve opening lever indicated by the solid line in FIG. 1 (the position where no fueling is performed) is performed by the elastic repulsive force of the return spring 5. The return spring 5 is attached to the base side 11 of the oil supply lever 10 and the cylinder body 1.

With reference to FIGS. 1-4, the lever guard 20 in the oil supply nozzle 100 of FIG. 1 is demonstrated.
The lever guard 20 has an arcuate portion 21 and a jaw portion 22. The arcuate portion 21 is generally U-shaped and has a groove 21G. A groove 22G is formed in the jaw part 22, and the groove 22G is continuous with the groove 21G of the arcuate part 21.
The shape of the bottom 22Gb (see FIG. 3) of the groove 22G is an arc having a radius of curvature R22G in FIG. 1, and the center of curvature of the radius of curvature R22G is the pin P1, which is the rotational center of the valve opening lever 10.

The opening upper edge 22Gt of the groove 22G is an arc having a radius of curvature R22T, and the center of curvature of the radius of curvature R22T and the valve opening lever 10 are the pin P1.
The curvature radius R22T is set to be smaller than the curvature radius of the distal end portion 13E (hatched portion) of the valve opening lever distal end portion 13. The distal end portion 13E of the valve opening lever distal end portion 13 is always located below the opening upper edge portion 22Gt of the groove 22G in the jaw portion 22 of the lever guard 20 (the bottom side of the groove). This is to prevent the valve opening lever 10 from being detached from the lever guard 20.
In FIGS. 1 and 2, an arc having a radius of curvature RP2 centered on the pin P1 is a locus of the center point of the pin P2 provided at the valve opening lever tip 13.

1 and 2, three pins 41 to 43 are provided on an arc L40 (imaginary line) having a radius of curvature R4 with the pin P1 as the center of curvature. The three pins 41 to 43 are attached so as to penetrate the side portion 22Gs (see FIG. 3) of the groove 22G.
Here, reference numeral 40 indicates the pins 41 to 43 comprehensively.

In the illustrated embodiment, the pin 41 moves the valve opening lever 10 to the LB position (low discharge) in FIG. 1 when the bottom surface 33 of the locking piece 30 engaged with the valve opening lever 10 abuts (to the pin 41). : Position for holding for a long time). If the valve opening lever 10 is held at the LB position in FIG. 1, a state in which the discharge amount is relatively small is maintained even if the fueling operator does not hold the valve opening lever 10. If the state where the discharge amount is relatively small is maintained, the operator can perform so-called “service work” such as window cleaning and tire check during refueling.
When the bottom surface 33 of the locking piece 30 engaged with the valve opening lever 10 comes into contact with the pin 42 (to the pin 42), the pin 42 moves the valve opening lever 10 to the LA position (high discharge: time lubrication position in FIG. 1). ). If the valve opening lever 10 is held at the LA position in FIG. 1, a state in which the discharge amount is relatively large is maintained even if the fueling operator does not hold the valve opening lever 10. Therefore, the required amount of refueling can be performed in a short time.

In FIG. 2, the locking piece 30 is provided with a spring (a helical spring) 6, and the elastic repulsive force of the spring 6 biases the locking piece 30 above the pin 42. Therefore, the state in which the locking piece 30 is locked by the pin (the pin 42 in FIG. 2) is released by a light operation (for example, an operation for lightly pulling the fuel supply lever 10 toward the grip 2).
Further, as described above, the valve opening lever 10 is urged toward the fuel supply stop position (position indicated by the solid line in FIG. 1) by the elastic repulsion of the return spring 5.
Therefore, the valve opening lever 10 is engaged with the pins 41 and 42 (the state where the valve opening lever 10 is held at the LA position or the LB position), and the oil supply stop position (the position indicated by the solid line in FIG. 1). Return to. Therefore, the operator who is refueling can operate the refueling nozzle 100 to a refueling stop state with one hand.

According to the illustrated embodiment, the oil supply nozzle 100 that is being refueled can be operated in a refueling stop state by a light operation, so that the vehicle has started for some reason during the refueling, and the fuel nozzle 100 has left the vehicle. However, due to the impact of the oil supply nozzle 100 dropping, the engagement between the locking piece 30 and the pin 41 or the pin 42 is released, the valve opening lever 10 returns to the oil supply stop position, and the oil supply is stopped.
Therefore, even if the vehicle starts for some reason while fuel is supplied by the fuel nozzle according to the illustrated embodiment, fuel does not continue to blow out from the fuel nozzle 100.

2 and 4, the jaw portion 22 of the lever guard 20 is formed with drainage and snow removal holes 22a, 22b, 22c, and 22d that also serve as light weight.
The hole 22c communicates the bottom 22Gb (FIG. 2) of the groove 22G with the hole 22a and the hole 22b. The hole 22d communicates with the hole 22a and the lower side (in FIG. 2) of the jaw 22.
Therefore, water and snow collected in the grooves 21G and 22G of the lever guard 20 are discharged to the outside of the nozzle guard 20 through any one of the hole 22a, 22b, and 22d from the hole 22c. Here, the symbol SW in FIG. 2 indicates water or rainwater in which snow accumulated in the nozzle guard 20 is melted.

Next, with reference also to FIG. 5, the pin 43 (pin which does not latch the latching piece 30) is demonstrated.
FIG. 5 shows a case where the pin 43 is not provided, and shows a state in which the refueling operator has pulled the valve opening lever 10 to the maximum extent (a state in which the valve body lever 1 (FIG. 1) is brought to the maximum extent). ing.
If the pin 43 is not provided, when the refueling operator raises the valve opening lever 10 to the maximum extent, the locking piece 30 rotates counterclockwise (in FIG. 5) about the pin P2, There is a risk that the gap on the right side (in FIG. 5) of the pin 42 may wrap around the pin 42.

When the locking piece 30 rotates and turns around to the lower side of the pin 42 from the gap on the right side of the pin 42, the locking piece 30 is moved by the elastic repulsion force of the spring 6 (FIG. 2). It is biased in the direction of turning around. As a result, the locking piece 30 comes into contact with the pin 42 from below.
And if the latching piece 30 contacts the lower side of the pin 42, the oil supply lever 10 will not return to an oil supply stop position.

On the other hand, in the embodiment of the present invention, as shown in FIG. 2, since the pin 43 is provided on the right side of the pin 42, the refueling operator raises the valve opening lever 10 to the maximum extent. Even if the stop piece 30 tries to rotate counterclockwise (in FIG. 5) about the pin P <b> 2, the bottom 33 of the locking piece 30 contacts the pin 43. Therefore, the locking piece 30 is prevented from going around (falling) below the pins 42 and 43 from the gap on the right side of the pin 42.
Even when the locking piece 30 comes into contact with the pin 41, the bottom 33 of the locking piece 30 comes into contact with the pin 42, so that the locking piece 30 goes under the pins 41, 42 from the gap on the right side of the pin 41. It wo n’t end up.

That is, the pin 43 functions as a stopper that prevents the locking piece 30 from turning around below the pin 42. The pin 42 has a function of holding the fuel supply lever 10 by locking the locking piece 30, and also has a function as a stopper for preventing the locking piece 30 from turning around below the pin 41. .
Here, the interval between the pins 41, 42, 43 is set to be shorter than the length of the locking piece 30 in order to ensure that the bottom 33 of the locking piece 30 comes into contact with the pins 42, 43.

1 to 5, the cross-sectional shape of the pins 41 to 43 is “circular”. This is because the pins 41 to 43 are press-fitted into the lever guard 20 (groove side portion 22Gs), and if the cross-sectional shape is circular, the press-fitting is easy.
However, the cross-sectional shape is not limited to “circular”.

For example, as in the first modification shown in FIG. 6A, the cross-sectional shape may be “diamond”. Here, as shown in FIG. 6A, the pins 41 to 43 are arranged such that the corners of the rhombus with a cross-sectional shape are upward when the oil lever 100 is locked to a lever hanger (not shown) of the oil filler. Should be placed facing the
As shown in FIG. 6A, it is difficult to accumulate snow if the corners of the rhombus face upward. However, as shown in FIG. 6B, if the rhombus sides are arranged upward, the snow SW accumulates on the sides arranged upward.

Alternatively, the cross-sectional shape may be “triangle” as in the second modification shown in FIG. In that case, as shown in FIG. 7 (a), the pins 41 to 43 are arranged so that the apex of the triangle in the cross-sectional shape is upward when the oil supply lever 100 is locked to the lever hanger (not shown) of the oil supply machine. Should be placed facing.
As shown in FIG. 7A, it is difficult to accumulate snow if the apex of the triangle of the cross-sectional shape faces upward. However, as shown in FIG. 7B, if the triangle sides are arranged facing upward, the snow SW accumulates on the sides arranged facing upward.

Further, as in the third modification shown in FIG. 8A, the cross-sectional shape may be “oval (oval)”. When the cross-sectional shape is oval (oval), the pins 41 to 43 are as shown in FIG. 8A in a state where the oil supply lever 100 is locked to a lever hanger (not shown) of the oil supply machine. The major axis of the elliptical cross-section should be arranged extending in the vertical direction.
As shown in FIG. 8A, it is difficult to accumulate snow if the major axis of the elliptical cross-sectional shape is arranged extending in the vertical direction. However, as shown in FIG. 8 (b), if the elliptical minor axis extends and is arranged in the vertical direction, the snow SW accumulates in the portion facing upward.

With reference to FIG. 9, FIG. 10, the direction where the surface (surface 33 of FIG. 9, surface 33J of FIG. 10) extended to the pins 41 and 42 of the locking piece 30 is demonstrated.
Although not clearly shown in FIGS. 1 to 5, in the locking piece 30 according to the illustrated embodiment, a surface that engages (contacts) with the pins 41 and 42 (the pins 42 in FIGS. 9 and 10). 33 coincides with the normal Ln direction of the locus (arc) of the oil supply lever tip 13.
9 and 10, a straight line Lt is a straight line that is parallel to a tangent (not shown) of the locus (arc) of the oil supply lever tip 13 and that passes through the center of the pin 42. Since the straight line Lt is parallel to the tangent to the locus (arc) of the oil supply lever tip 13, it is orthogonal to the normal line Lt of the locus (arc) of the oil supply lever tip 13.

In FIG. 9, in the illustrated embodiment, a surface 33 locked to the pin 42 of the locking piece 30 extends in the normal Ln direction and is orthogonal to the straight line Lt direction.
The frictional resistance between the pin 42 and the locking piece 30 works most strongly in the direction of the straight line Lt parallel to the tangent (not shown) of the locus (arc) of the oil supply lever tip 13. Since the surface 33 of the locking piece 30 that contacts the pin 42 extends in the normal Ln direction and is orthogonal to the straight line Lt direction, the frictional resistance between the pin 42 and the locking piece 30 works most strongly. Is securely hooked (locked) to the pin 42.
In FIG. 9, symbol θ is an angle formed between the upper surface 31 of the locking piece 30 and the normal line Ln. For example, θ is about 70 °.

On the other hand, in the existing locking piece 30J shown in FIG. 10, since the surface 33J locked to the pin 42 and the upper surface 31 are always orthogonal, the surface 33J locked to the pin 42 extends in the normal Ln direction. Does not exist and is not orthogonal to the straight line Lt.
Therefore, compared with the case of FIG. 9, the frictional resistance between the pin 42 and the locking piece 30J is weak, and the contact surface 33J of the pin 42 and the locking piece 30J is not reliably locked.

According to the illustrated embodiment, since the plurality of pins 41 to 43 provided in the lever guard 20 (in the groove G22) and the locking piece 30 of the valve opening lever 10 are engaged, the valve opening lever 10 is predetermined. (LA position, LB position).
Even if foreign matter such as snow or dust enters the lever guard 20, it is easily discharged out of the lever guard 20 through the gaps and openings (extract holes 22c, 22a, 22d, 22b) of the pins 41-43.
Further, it is difficult to accumulate snow above the pins 41 to 43, and even if snow is accumulated, it is blown away by the wind.

According to the illustrated embodiment, since the pins 41 to 43 are provided, the position at which the tip of the valve opening lever 10 is locked is the LA position (high discharge: short-time lubrication), the LB position (low discharge: long It can be set to two types (time refueling).
In the illustrated embodiment, the tip 13 of the valve opening lever 10 is provided with a spring 6 and a spring 5 (return spring). Therefore, the oil supply nozzle easily returns from the oil supply positions LA and LB to the oil supply stop position. I can do it. Therefore, the engagement between the tip 13 of the valve opening lever 10 and the pin 41 or 42 can be released with a light operation. At this time, even if the worker continues to hold the valve opening lever 10 and performs the oil supply operation (so-called “manual oil supply”), the elastic repulsion of the spring 6 does not hinder the manual oil supply operation.

Furthermore, in the illustrated embodiment, the pins 42 and 43 function as stoppers for the locking pieces 30, so that the locking pieces 30 are prevented from wrapping around the space below the pins 41 and 42.
Further, since the tip 13 of the valve opening lever 10 is guided within the groove side 22Gs of the lever guard 20, the tip 13 of the valve opening lever is prevented from coming off the lever guard 20 and twisted to the oil supply lever 10. Force does not act. Therefore, the valve opening lever 10 is not broken and is prevented from being deformed.
In addition, in the illustrated embodiment, the locking piece 30 is locked with the pins 41 and 42 in the state where the frictional resistance is the strongest, so that the locking piece 30 and the pins 41 and 42 are reliably engaged. Retained.

  It should be noted that the illustrated embodiment is merely an example, and is not a description to limit the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Cylindrical trunk part 2 including a valve mechanism ... Grip 3 ... Tip pipe / discharge pipe 5 ... Return spring 6 ... Elastic member / Spiral spring 10 ... Valve opening lever 13 ..Tip 10: Valve opening lever 20 ... Lever guard 22 ... Jaw portion 22G ... Groove 30 ... Locking piece 40 ... Bar-shaped member / pin

Claims (3)

A valve opening lever (10) for opening and closing the main valve, a locking part (40) provided on the lever guard (20) and engaging with the tip of the valve opening lever (10) , and a tip of the discharge pipe (3) An automatic valve closing mechanism that is connected to an opening provided in the valve and a negative pressure generating part provided in the middle of the flow path, and receives the negative pressure from the negative pressure generating part when the opening is blocked by fuel oil, and closes the main valve in fueling nozzle provided with said locking portion (40) is Ri rod member (41-43) der provided plural in the space portion of the lever guard (20), the tip of the valve opening lever (10) (13 ) Is provided with a locking piece (30) that is rotatable by an elastic body (6), and in the locking portion (40), the locking piece (30) is in contact with the rod-shaped members (41 to 43). The characteristic oiling nozzle. The oil supply nozzle according to claim 1, wherein the elastic body (10) is biased in a direction in which the engagement of the locking portion (40) is released. The rod-shaped members (41 to 43) are composed of a first pin (41), a second pin (42), and a third pin (43), and the first pin (41) and the second pin. 2. The oil supply nozzle according to claim 1, wherein the distance between the second pin and the third pin is set to be shorter than the length of the locking piece. .

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