JP5457049B2 - Bracket for oil gun and method for manufacturing the same - Google Patents

Description

  The present invention relates to a fuel gun bracket provided inside a fuel filler port of a fuel pipe that feeds fuel to a fuel tank of a vehicle and guides a nozzle of the fuel gun, and a method for manufacturing the same.

  A fuel tank is used to supply fuel to the internal combustion engine. An oil supply pipe (inlet pipe) is attached to the fuel tank in order to supply fuel into the fuel tank.

  Normally, gasoline and light oil are used as vehicle fuel. And in order to distinguish gasoline and light oil at the time of refueling, the oil supply gun for gasoline and the oil supply gun for light oil are set to the dimension from which each nozzle outer diameter differs. For this reason, in the oil supply pipe, a dedicated bracket is attached in the vicinity of the oil supply port corresponding to the oil supply gun having a different diameter.

  Specifically, a gasoline vehicle is equipped with a bracket with a small inner diameter, while a diesel vehicle is equipped with a bracket with a large inner diameter. Therefore, it is necessary to prepare two types of brackets corresponding to the vehicle type. However, there are problems that two different molds are used corresponding to each bracket, which is not economical.

  Accordingly, it is desired to deal with two different types of brackets with a common mold. For example, it is conceivable to adopt the technical idea disclosed in Patent Document 1. This Patent Document 1 is not related to a fuel supply pipe, but relates to a liquid level detection device that is attached inside a fuel tank and measures and displays the liquid level of the fuel, and a method for manufacturing the same.

  This liquid level detection device has one end side rotatably fixed to the main body part, and a float that is linked to the liquid level displacement of the detection liquid is attached to the other end side, and an arm part that rotates according to the fluctuation of the float, And a liquid level detection device that includes an angle detection unit that detects a rotation angle between the main body unit and the arm unit, and detects a level of the liquid level based on an output of the angle detection unit, The arm portion is composed of an arm member having a predetermined length, and a float fixing through-hole is provided at a predetermined position of the arm portion, and the fixing member is passed through the through-hole to connect the float and the arm portion. It is characterized by fixing.

  In this liquid level detection device, by changing the position of the through hole provided in the arm part, it is possible to easily form the arm part corresponding to the vehicle type on which the rotational radius of the float is mounted. In the case of the device, it is possible to reduce the cost by eliminating the need for a bending die for forming the arm portion corresponding to the mounted vehicle type.

JP 2004-20510 A

  In the above-mentioned Patent Document 1, the arm portion is made in a shape that can be used in common, and the position of the through hole is changed to support the model. Therefore, there is a problem that it cannot be applied to a bracket for an oil supply gun having different inner diameters. That is, Patent Document 1 enables adjustment in the length direction and cannot be directly applied to a bracket for a fuel gun that requires adjustment in the radial direction.

  The present invention solves this type of problem, and can provide a common mold for manufacturing brackets having different inner diameters, and can reduce the manufacturing cost of the brackets favorably. It is an object of the present invention to provide a bracket for the use and a manufacturing method thereof.

  The present invention relates to a fuel gun bracket that is provided inside a fuel filler port of a fuel pipe that feeds fuel to a fuel tank of a vehicle and guides a nozzle of the fuel gun.

The bracket corresponds to a first inner diameter portion corresponding to a first nozzle having a first outer diameter dimension, and a second nozzle having a second outer diameter dimension smaller than the first outer diameter dimension. And a flat portion connecting the first inner diameter portion and the second inner diameter portion. A joint pipe is attached to the bracket on the fuel tank side and outside the flat portion. The joint pipe is provided with a first cylindrical portion on the fuel filler port side, and a first stopper is provided on the front end side of the first cylindrical portion in the nozzle insertion direction. parts are provided, the first stopper portion is provided followed by a second cylindrical portion, the nozzle insertion direction leading end side of the second cylindrical portion is provided second stopper portion, the inner diameter of the first stopper portion is first smaller than the inner diameter of the first cylindrical portion, larger than the inner diameter of the second cylindrical portion, the inner diameter of the second stopper portion and being smaller than the inner diameter of the second cylindrical portion.

Moreover, the bracket is preferably a molded integrally Turkey along the nozzle insertion direction of the first inner diameter portion and the second inner diameter portion. It is preferable that the end portion of the second cylindrical portion is located at the bent portion of the oil supply pipe.

  Furthermore, the present invention relates to a method for manufacturing a fuel gun bracket that is provided inside a fuel filler port of a fuel pipe that feeds fuel to a fuel tank of a vehicle and guides a nozzle of the fuel gun.

  The manufacturing method includes a first inner diameter portion corresponding to a first nozzle having a first outer diameter dimension, and a second nozzle having a second outer diameter dimension smaller than the first outer diameter dimension. And a step of integrally forming the corresponding second inner diameter portion along the nozzle insertion direction, and a step of cutting and removing the second inner diameter portion when the first nozzle bracket is manufactured. Yes.

  Furthermore, this manufacturing method is located between the first inner diameter portion and the second inner diameter portion, and the cylindrical portion is integrally formed on the extension of the end portion of the first inner diameter portion, and for the first nozzle. When manufacturing the bracket, it is preferable to cut and remove the second inner diameter portion by cutting the cylindrical portion.

  In the present invention, the bracket has a first inner diameter portion corresponding to the first nozzle having the first outer diameter dimension, and a second outer diameter dimension smaller than the first outer diameter dimension. A second inner diameter portion corresponding to the nozzle is integrally formed. For this reason, the bracket can be used directly when used as the second nozzle bracket on the small diameter side, while the second is used when used as the first nozzle bracket on the large diameter side. It is only necessary to cut and remove the inner diameter portion.

  Therefore, it is possible to share a mold for manufacturing brackets having different inner diameters, and it is possible to favorably reduce the entire manufacturing cost of the bracket.

It is a schematic block diagram of the fuel tank in which the bracket for fueling guns concerning the embodiment of the present invention is built. It is an expanded sectional explanatory view of the bracket for oil supply gun and an oil supply pipe. It is explanatory drawing of the bracket for said oil supply guns. It is explanatory drawing at the time of using the said bracket for oil supply guns as a bracket of the nozzle for light oil.

  FIG. 1 is a schematic configuration diagram of a fuel tank 12 in which a fuel gun bracket 10 according to an embodiment of the present invention is incorporated.

  The fuel tank 12 stores the fuel F, and one opening 14 a of the fuel supply pipe 14 is opened in the fuel tank 12. The other opening 14 b of the oil supply pipe 14 is opened to the oil supply port 16. A breather pipe 18 for discharging air in the fuel tank 12 to the outside when the fuel F is supplied to the fuel tank 12 is provided in the vicinity of the opening 14b of the fuel supply pipe 14 and the upper portion of the fuel tank 12. Arranged.

  As shown in FIG. 2, the bracket 10 and the joint pipe 20 according to the present embodiment are attached in the vicinity (inside) of the oil supply port 16 of the oil supply pipe 14.

  As shown in FIGS. 2 and 3, the bracket 10 has a large-diameter attachment portion 22 attached to the inner peripheral surface of the oil supply pipe 14. A first inner diameter portion 24, a flat portion 26, and a second inner diameter portion 28 are integrally formed at the end portion of the attachment portion 22 along the nozzle insertion direction (arrow A direction).

  As shown in FIG. 4, the first inner diameter portion 24 is set to an inner diameter D1 equal to or greater than the first outer diameter dimension of the light oil nozzle (first nozzle) 30, while the second inner diameter portion 28 is As shown in FIG. 3, the inner diameter D <b> 2 is set to be equal to or larger than the second outer diameter dimension of the gasoline nozzle (second nozzle) 32. The first outer diameter dimension (inner diameter D1) is set larger than the second outer diameter dimension (inner diameter D2) (D1> D2), and distinguishes between light oil and gasoline.

  As shown in FIG. 2, the joint pipe 20 is formed by reducing the diameter of the first cylindrical portion 34 disposed on the bracket 10 side, that is, the fuel filler port 16 side, and the tip end side of the first cylindrical portion 34 in the nozzle insertion direction. The first stopper portion 36 is integrally provided, and the first stopper portion 36 is integrally provided with a second cylindrical portion 38 having a smaller diameter than the first cylindrical portion 34.

  The step size of the first stopper portion 36, that is, the distance S between the inner peripheral surface of the first cylindrical portion 34 and the inner peripheral surface of the second cylindrical portion 38 is set to a size equal to or less than the thickness of the light oil nozzle 30. .

  The inner peripheral diameter of the second cylindrical portion 38 is set to a dimension that can smoothly guide the gasoline nozzle 32, that is, a dimension that is equal to or larger than the outer diameter dimension of the gasoline nozzle 32. A second stopper portion 40 for restricting the insertion position of the gasoline nozzle 32 is formed at the tip of the second cylindrical portion 38 in the nozzle insertion direction. For example, the bracket 10 is formed by press-molding stainless steel, and the joint pipe 20 is similarly formed by press-molding stainless steel. Note that the bracket 10 and the joint pipe 20 may be integrally formed of a resin material.

  A method for manufacturing the bracket 10 configured as described above will be described below.

  First, the bracket 10 in which the attachment portion 22, the first inner diameter portion 24, the flat portion 26, and the second inner diameter portion 28 are integrally formed is manufactured using a mold (not shown).

  Next, when the fuel tank 12 is mounted on a gasoline vehicle, as shown in FIGS. 2 and 3, the bracket 10 is attached to the inside of the fuel filler opening 16 of the fuel filler pipe 14 as it is.

  Then, in order to supply fuel F, which is gasoline, into the fuel tank 12, a cap (not shown) is removed from the fuel filler port 16, and then a gasoline nozzle 32 is inserted into the fuel filler port 16, as shown in FIG. . The gasoline nozzle 32 is guided by the second inner diameter portion 28 from the mounting portion 22 side of the bracket 10 through the first inner diameter portion 24 and the flat portion 26.

  The gasoline nozzle 32 is further inserted into the joint pipe 20 and guided to the second cylindrical portion 38 through the first cylindrical portion 34 and the first stopper portion 36. The gasoline nozzle 32 abuts against a second stopper portion 40 that is bent inward at the tip of the second cylindrical portion 38, and the position of the gasoline nozzle 32 is regulated at this position. Next, fuel F is injected from the gasoline nozzle 32 into the fuel supply pipe 14, and the fuel F is supplied to the fuel tank 12.

  On the other hand, when the fuel tank 12 is mounted on a diesel vehicle, the bracket 10 is cut by the flat portion 26 and the second inner diameter portion 28 is removed, as shown in FIG. Accordingly, the light oil nozzle 30 is smoothly and satisfactorily inserted into the oil supply pipe 14 under the guiding action of the first inner diameter portion 24 of the bracket 10. The light oil nozzle 30 abuts on the first stopper portion 36 of the joint pipe 20 to restrict the amount of insertion.

  In this case, in this embodiment, the bracket 10 includes a first inner diameter portion 24 corresponding to the first outer diameter dimension (inner diameter D1) and a second diameter smaller than the first outer diameter dimension (inner diameter D1). A second inner diameter portion 28 corresponding to the outer diameter dimension (inner diameter D2) is integrally formed. For this reason, when the bracket 10 is used as a bracket for the gasoline nozzle 32 on the small diameter side, it can be directly mounted on the oil supply pipe 14. On the other hand, when the bracket 10 is used as a bracket for the light oil nozzle 30 on the large diameter side, the second inner diameter portion 28 is cut off and then attached to the oil supply pipe 14.

  Thereby, in order to manufacture two types of brackets having different inner diameters, it is not necessary to prepare two dedicated molds, and a single mold can be used in common. Therefore, the effect that the manufacturing cost of the bracket 10 can be favorably reduced is obtained.

  Further, the bracket 10 is positioned between the first inner diameter portion 24 and the second inner diameter portion 28, and a flat portion 26 continuous with the extension of the end portion of the first inner diameter portion 24 is integrally formed. When the light oil nozzle 30 is used, the second inner diameter portion 28 is removed by cutting at the flat portion 26.

  At this time, since the flat portion 26 is cut, there is no possibility that the end portion of the cut surface is deformed inward as in the case of cutting the inclined portion, for example. For this reason, there exists an advantage that it becomes possible to maintain a desired 1st internal diameter D1 and to obtain a favorable cut surface shape.

  Furthermore, a joint pipe 20 is attached to the tip of the bracket 10, and a first stopper portion 36 that restricts the insertion amount of the light oil nozzle 30 on the large diameter side is provided on the joint pipe 20. Moreover, in the first stopper portion 36, the distance S is set to a dimension that is equal to or smaller than the thickness of the light oil nozzle 30.

  Thereby, the entrainment of the light oil injected from the light oil nozzle 30 into the oil supply pipe 14 does not occur, and this light oil can be smoothly and reliably supplied to the fuel tank 12.

DESCRIPTION OF SYMBOLS 10 ... Bracket 12 ... Fuel tank 14 ... Oil supply pipe 16 ... Oil supply port 20 ... Joint pipe 22 ... Mounting part 24, 28 ... Inner diameter part 26 ... Flat part 30 ... Nozzle for light oil 32 ... Nozzle for gasoline 34, 38 ... Cylindrical part 36 40 ... Stopper

Claims (5)

A fuel gun bracket provided inside a fuel filler port of a fuel pipe for feeding fuel to a fuel tank of a vehicle, for guiding a nozzle of the fuel gun,
A first inner diameter portion corresponding to a first nozzle having a first outer diameter dimension;
A second inner diameter portion corresponding to a second nozzle having a second outer diameter smaller than the first outer diameter;
A flat portion connecting the first inner diameter portion and the second inner diameter portion;
With
A joint pipe is attached to the bracket on the fuel tank side and the flat portion outside,
The joint pipe is provided with a first cylindrical portion on the oil filler port side,
A first stopper portion is provided on the front end side of the first cylindrical portion in the nozzle insertion direction, and a second cylindrical portion is subsequently provided on the first stopper portion,
A second stopper portion is provided on the tip side of the second cylindrical portion in the nozzle insertion direction,
The inner diameter of the first stopper portion is smaller than the inner diameter of the first cylindrical portion, that the inner diameter of greater than the inner diameter of the second cylindrical portion and the second stopper portion is smaller than the inner diameter of the second cylindrical portion A bracket for a refueling gun.   2. The oil gun bracket according to claim 1, wherein the first inner diameter portion and the second inner diameter portion are integrally formed along a nozzle insertion direction.   3. The oil gun bracket according to claim 1, wherein an end of the second cylindrical portion is located at a bent portion of the oil pipe. 4. A fuel gun bracket manufacturing method for guiding a nozzle of a fuel gun provided inside a fuel filler port of a fuel pipe for fueling a fuel tank of a vehicle,
A first inner diameter portion corresponding to the first nozzle having the first outer diameter dimension, and a second inner diameter corresponding to the second nozzle having a second outer diameter dimension smaller than the first outer diameter dimension. A step of integrally molding the portion along the nozzle insertion direction;
When manufacturing the first nozzle bracket, cutting and removing the second inner diameter portion;
The manufacturing method of the bracket for oil supply guns characterized by having. The manufacturing method according to claim 4, wherein the cylindrical portion is integrally formed on the extension of the first inner diameter portion, located between the first inner diameter portion and the second inner diameter portion,
When manufacturing the said 1st bracket for nozzles, it cut | disconnects by the said cylindrical part, and cuts and removes the said 2nd internal diameter part, The manufacturing method of the bracket for oil supply guns characterized by the above-mentioned.

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