JP2015000603A - Filler pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filler pipe which enables easy processing and achieves weight reduction.SOLUTION: A retainer 20 which holds a tip part 51 of an oil feed gun 50 is attached to an inlet part of a filler pipe 10. The retainer 20 comprises: a retainer attachment part 30; and a retainer gun restriction part 40. The retainer attachment part 30 is formed by a metal and includes a retainer attachment holding part 33 and a retainer attachment engagement part. The retainer gun restriction part 40 is formed by a synthetic resin and includes a retainer gun restriction engagement part and a retainer gun restriction cylinder part. The retainer gun restriction engagement part is fitted into the retainer attachment engagement part to integrally couple the retainer attachment part 30 and the retainer gun restriction part 40 to each other. The retainer attachment part 30 and the retainer gun restriction part 40 which are coupled to each other are inserted into the inlet part of the filler pipe 10.

Description

  The present invention relates to a filler pipe in which a retainer is attached to an inlet portion of a filler pipe for injecting fuel from a fuel filler port into an automobile fuel tank.

As shown in FIG. 8, a filler pipe 110 is attached in order to inject fuel from a vehicle body fuel supply port provided in the vehicle body to a fuel tank for an automobile.
A fuel pipe is injected into the filler pipe 110 by inserting a tip 131 of a fuel gun 130 into the inlet 111.

  At this time, in order to hold the tip of the refueling gun 130 and stabilize the fuel flow, a retainer 120 is provided inside the filler pipe 110 through the inlet 112, and the tip of the retainer 120 is elongated in a pipe shape. Some are formed by stretching (see, for example, Patent Document 1). In this case, in order to hold the tip 131 of the fuel gun 130 at the tip of the retainer 120, it is necessary to extend the tip of the retainer 120 long.

However, in this case, since the distal end portion of the retainer 120 is elongated in a pipe shape, the overall weight of the retainer 120 increases, which is against the request for weight reduction of the vehicle body.
In addition, in order to hold the tip 131 of the fuel gun 130, the pipe diameter of the tip of the retainer 120 needs to be approximately equal to the nozzle diameter of the tip 131 of the fuel gun 130, and the tip 131 of the fuel gun 130. It took a lot of time to insert and take out.

  Also, as shown in FIG. 9, the retainer 220 is positioned at the tip of the retainer 220 and the retainer mounting portion 222 that is attached to the inlet portion of the filler pipe 20. Some have a retainer opening 223 through which fuel is fed. Accordingly, the tip of the fuel gun can be held at the retainer opening 223, and the fuel ejection direction can be made constant.

  At this time, in order to stabilize the fueling gun, a part of the retainer opening 223 is extended to provide a retainer opening extending part 227 having a flat cross-sectional shape in the longitudinal direction, and is opposite to the retainer opening extending part 227. A retainer opening protrusion 224 that protrudes in the center direction of the retainer opening is formed in a part of the retainer opening that faces the retainer opening extending portion 227.

  However, in order to form this metal retainer 220, it is necessary to gradually narrow the plate-like metal and form it into a cylindrical shape by repeating press processing several times. For this reason, it takes time and effort to increase the cost. And in order to narrow down by this press work, it is necessary to anneal a plate-shaped metal, but this annealing process is also a factor of a cost increase.

JP 2009-18755 A

  Therefore, the present invention is intended to provide a filler pipe that is easy to process and has a reduced weight.

In order to solve the above-mentioned problem, the present invention of claim 1 is a filler pipe for injecting fuel from a vehicle body filler port formed on the outer surface of a vehicle body to a fuel tank.
Attach a retainer that holds the tip of the oil gun to the inlet of the filler pipe,
The retainer is composed of a retainer mounting portion that is attached to the inlet portion of the filler pipe, and a retainer gun restricting portion that is assembled to the retainer mounting portion.
The retainer mounting portion is made of metal and is formed in a cylindrical retainer mounting and holding portion that is held in contact with the inner surface of the inlet portion of the filler pipe, and is smaller than the retainer mounting and holding portion formed on the distal end side of the retainer mounting holding portion. It has a cylindrical retainer mounting engagement part formed with an outer diameter,
The retainer gun restricting portion is formed of synthetic resin, and the portion on the inlet portion side of the filler pipe has a cylindrical retainer gun restricting / engaging portion having an inner diameter that is the same as or slightly larger than the outer diameter of the retainer mounting engaging portion, and the retainer gun restricting portion. A cylindrical retainer gun restricting cylinder portion formed on the distal end side of the engaging portion and having an outer diameter smaller than that of the retainer gun restricting engaging portion;
A retainer gun restricting / engaging portion is fitted into the retainer attaching / engaging portion, and the retainer attaching portion and the retainer gun restricting portion are integrally coupled and inserted into the inlet portion of the filler pipe.

  According to the first aspect of the present invention, in the filler pipe for injecting fuel into the fuel tank from the vehicle body refueling port formed on the outer surface of the vehicle body, the retainer for holding the tip of the fuel gun is attached to the inlet of the filler pipe. Therefore, when the refueling gun is inserted into the inlet portion of the filler pipe, the retainer guides the front end portion of the refueling gun and can be held at a predetermined position, so that fuel injection can be ensured.

  A retainer is comprised from the retainer attaching part attached to the inlet_port | entrance part of a filler pipe, and the retainer gun control part assembled | attached to a retainer attaching part. For this reason, the retainer can be divided and formed, and even if the retainer has a cylindrical shape, the retainer mounting portion and the retainer gun restricting portion can be formed separately. The amount of deformation is small and molding is easy. Further, the retainer mounting portion and the retainer gun restricting portion can be formed of different materials, which can contribute to weight reduction and cost reduction.

  The retainer mounting portion is made of metal and is formed in a cylindrical retainer mounting and holding portion that is held in contact with the inner surface of the inlet portion of the filler pipe, and is smaller than the retainer mounting and holding portion formed on the distal end side of the retainer mounting holding portion. It has a cylindrical retainer mounting engagement portion formed with an outer diameter. For this reason, metals contact | abut the outer surface of a retainer attachment part, and the inner surface of the inlet part of a filler pipe, and can hold | maintain a retainer to a filler pipe firmly. The retainer mounting engagement portion can be engaged by inserting a retainer gun restricting portion on the outer surface thereof.

  The retainer gun restricting portion is formed of synthetic resin, and the portion on the inlet portion side of the filler pipe has a cylindrical retainer gun restricting / engaging portion having an inner diameter that is the same as or slightly larger than the outer diameter of the retainer mounting engaging portion, and the retainer gun restricting portion. It has a cylindrical retainer gun restricting cylinder portion formed on the distal end side of the engaging portion and having an outer diameter smaller than that of the retainer gun restricting engaging portion. For this reason, the retainer gun restricting portion formed of synthetic resin can be freely formed in shape and can be lighter than metal. Moreover, it can be easily made into a cylindrical shape so that the retainer gun restricting cylinder portion reliably holds the tip portion of the fuel gun. Furthermore, the tip of the refueling gun can be held by the retainer gun restricting cylinder portion so that the fuel ejection direction can be made constant.

  The inner surface of the retainer gun restricting / engaging portion was fitted to the outer surface of the retainer attaching / engaging portion, and the retainer attaching portion and the retainer gun restricting portion were integrally coupled and inserted into the inlet portion of the filler pipe. Therefore, when the retainer is inserted into the inlet portion of the filler pipe, the retainer gun restriction engaging portion is sandwiched between the retainer mounting engaging portion and the inlet portion of the filler pipe, and is firmly held at the inlet portion of the filler pipe. Thus, the retainer gun restricting portion can be stably held on the retainer mounting portion.

  According to the present invention of claim 2, a retainer mounting engagement notch is formed at the distal end portion of the retainer mounting engagement portion, and a retainer gun restriction engagement protrusion is formed on the inner surface of the inlet side portion of the retainer gun restriction engagement portion. This is a filler pipe in which a retainer gun restriction engagement protrusion is fitted into a retainer attachment engagement notch, and the retainer attachment part and the retainer gun restriction part are integrally coupled.

  In the present invention of claim 2, a retainer mounting engagement notch is formed at the tip of the retainer mounting engagement portion, and a retainer gun restriction engagement protrusion is formed on the inner surface of the inlet side portion of the retainer gun restriction engagement portion. A retainer gun restriction engagement protrusion is fitted into the retainer attachment engagement notch, and the retainer attachment part and the retainer gun restriction part are integrally coupled. For this reason, the retainer mounting portion and the retainer gun restricting portion can be easily coupled integrally only by fitting the retainer gun restricting engaging protrusion into the retainer attaching engagement notch. Also, depending on the length of the retainer mounting engagement notch in the radial direction, the retainer gun restricting portion rotates around the retainer mounting portion and the coupling position (angle) differs, and the retainer gun restricting cylinder is the center of the retainer gun restricting portion. When formed off the axis, the angle at which the fuel is allowed to flow in from the tip of the retainer gun restricting cylinder can be changed, and the fuel flow can be controlled.

  According to a third aspect of the present invention, a threaded portion is formed at the distal end portion of the retainer mounting engaging portion, a threaded portion is formed at the inlet side portion of the retainer gun restricting engaging portion, and the threaded portions are fitted to each other. This is a filler pipe in which an attachment portion and a retainer gun restriction portion are integrally coupled.

  In this invention of Claim 3, a thread part is formed in the front-end | tip part of a retainer attachment engagement part, a thread part is formed in the entrance side part of a retainer gun control engagement part, screw parts are fitted, and a retainer The mounting portion and the retainer gun restricting portion are integrally coupled. For this reason, a retainer attachment part and a retainer gun control part can be integrally combined easily only by fitting screw parts. Depending on the length of the screw portion, the position (angle) of rotation of the retainer gun restricting portion relative to the retainer mounting portion can be changed to change the angle of the tip of the retainer gun restricting cylinder portion.

  According to a fourth aspect of the present invention, when the retainer is inserted into the inlet portion of the filler pipe, the outer surface of the retainer gun restriction engaging portion is a filler pipe that is in contact with the inner surface of the filler pipe inlet portion.

  According to the fourth aspect of the present invention, when the retainer is inserted into the inlet portion of the filler pipe, the outer surface of the retainer gun restriction engaging portion is in contact with the inner surface of the filler pipe inlet portion. For this reason, when the retainer is inserted into the inlet portion of the filler pipe, the retainer gun restricting engagement portion is firmly held between the inner surface of the inlet portion of the filler pipe and the retainer mounting engagement portion, so that the inlet portion of the filler pipe is firmly The retainer gun restricting portion can be stably held on the retainer mounting portion.

  The present invention of claim 5 is a filler pipe in which the retainer gun restricting cylinder portion is formed so as to be shifted from the central axis of the retainer gun restricting engagement portion.

  According to the fifth aspect of the present invention, the retainer gun restricting cylinder portion is formed so as to be shifted from the central axis of the retainer gun restricting engagement portion. Therefore, the retainer gun restricting cylinder portion is changed by changing the position (angle) at which the retainer gun restricting portion is attached to the retainer attaching portion. The position of the opening can be changed, and the direction of fuel flow into the filler pipe can be changed to create an optimal fuel flow.

  The present invention according to claim 6 is a filler pipe in which the inner diameter size of the retainer gun regulating cylinder portion is slightly larger than the outer diameter of the tip portion of the fuel gun.

  In the sixth aspect of the present invention, the inner diameter of the retainer gun restricting cylinder is slightly larger than the outer diameter of the tip of the oil gun, so there is little blurring at the tip of the oil gun and the retainer gun restricting cylinder is securely held by the retainer gun restricting cylinder. The fuel ejection direction can be maintained in a predetermined direction.

  The present invention of claim 7 is a filler pipe in which a screw portion is formed at a tip portion of the retainer mounting portion, and an opening / closing member that closes the opening of the retainer mounting portion is screwed.

  According to the seventh aspect of the present invention, a screw portion is formed at the distal end portion of the retainer mounting portion, and the opening / closing member that closes the opening of the retainer mounting portion is screwed. For this reason, the opening of the retainer attachment part attached to the inlet side part of the filler pipe can be reliably closed by the opening and closing member such as a cap, thereby preventing the fuel from flowing out from the filler pipe.

  Since the retainer is composed of a retainer mounting portion that is attached to the inlet portion of the filler pipe and a retainer gun restricting portion that is assembled to the retainer attaching portion, the retainer attaching portion and the retainer gun restricting portion can be formed separately. The material can be easily selected, and even if it is formed by press molding, the amount of deformation is small and molding is easy.

  The retainer gun restricting / engaging portion is fitted to the retainer attaching / engaging portion, and the retainer attaching portion and the retainer gun restricting portion are integrally coupled and inserted into the inlet portion of the filler pipe, so that it is inserted into the inlet portion of the filler pipe. The retainer gun restriction engagement portion is sandwiched between the retainer attachment engagement portion and the inlet portion of the filler pipe and is firmly held by the inlet portion of the filler pipe, so that the retainer gun restriction engagement portion is stably attached to the retainer attachment portion. Can be held.

The embodiment of the present invention is shown, and is a cross-sectional view of a portion where a retainer is attached to an inlet portion of a filler pipe. The embodiment of the present invention is shown and is a sectional view of a retainer. The embodiment of the present invention is shown and it is a perspective view of the state where the retainer gun regulation part was attached to the retainer attachment part. FIG. 4 is a side view showing the main body direction of the retainer gun restricting portion from the opening of the retainer gun restricting cylinder portion in a state where the retainer gun restricting portion is attached to the retainer attaching portion according to the embodiment of the present invention. The embodiment of the present invention is shown and it is the perspective view which looked at the retainer attaching part from the slanting upper part. The embodiment of the present invention is shown and it is the perspective view which looked at the retainer gun regulation part from the slanting upper part. The other embodiment of this invention is shown and it is a perspective view of the state which attached the retainer gun control part to the retainer attaching part. It is sectional drawing of the part which attached the retainer to the inlet_port | entrance part of the conventional filler pipe. It is sectional drawing of the part which attached the retainer to the inlet_port | entrance part of the other conventional filler pipe.

  The present invention relates to a filler pipe 10 in which a retainer 20 is attached to an inlet portion 12 of a filler pipe 10 for injecting fuel from a vehicle body filler port provided in a vehicle body to a vehicle fuel tank. The retainer 20 holds the front end portion 51 of the fuel supply gun 50 and makes fuel injection smooth.

  As shown in FIG. 1, the tip portion of the filler pipe 10 has an inlet 11 attached to a vehicle body filler (not shown) formed on the outer surface of the vehicle, and an inlet formed in a cylindrical shape from the inlet 11. Formed from portion 12. The filler pipe 10 is formed to gradually decrease in diameter from the tip of the inlet portion 12 and is continuous with the filler pipe main body 13.

Next, the retainer 20 will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the retainer 20 includes a retainer mounting portion 30 that is attached to the inlet portion 12 of the filler pipe 10 and a retainer gun restricting portion 40 that is assembled to the distal end side of the retainer mounting portion 30. .
The retainer attaching portion 30 and the retainer gun restricting portion 40 are formed separately and are integrally engaged before being attached to the filler pipe 10.

  The retainer 20 formed by dividing into two is inserted and held in the inlet portion 12 of the filler pipe 10 and is long along the filler pipe 10 so as to hold the tip portion 51 of the fuel gun 50. Even if it is a cylindrical shape, the retainer mounting portion 30 and the retainer gun restricting portion 40 can be formed separately, so that, as in the prior art, a single metal plate is squeezed many times by press molding to make a long tube The retainer mounting portion 30 may be press-formed to a half depth of the conventional retainer 20. For this reason, it is not necessary to anneal the metal plate before press forming, and even if formed by press forming, the deformation amount of drawing is small, the number of presses is small, and forming is easy.

  The retainer mounting portion 30 is made of metal. The retainer mounting portion 30 is formed by press-molding a metal plate. As the metal plate, a stainless steel plate or a rust-proof iron plate is used. This metal plate is deformed into a cylindrical shape by press molding. As described above, the retainer mounting portion 30 has a shape in which the retainer 20 is divided. Therefore, the length of the cylinder that is deformed into a cylinder by press molding (the depth of narrowing by pressing) is the entire length of the retainer 20. It can be made shorter than that formed from a metal plate, annealing before press forming is unnecessary, and press forming is easy.

  The retainer mounting portion 30 has a cylindrical retainer mounting / holding portion 33 that is held in contact with the inner surface of the inlet portion 12 of the filler pipe 10 and a retainer mounting / holding portion that is formed on the distal end side of the retainer mounting / holding portion 33. A cylindrical retainer mounting engagement portion 34 having an outer diameter smaller than 33 is provided.

When the retainer 20 is attached to the filler pipe 10, the tip of the retainer mounting holding portion 33 on the inlet 11 side is formed to be curved in the outer peripheral direction so as to cover the inlet 11 of the filler pipe 10. 31 is formed.
Since the retainer injection edge 31 covers the tip of the inlet 11 of the filler pipe 10, the retainer 20 is fixed at the inlet 11 so as not to enter the interior of the filler pipe 10, and the tip of the inlet 11 and the retainer injection It is possible to prevent fuel from leaking from between the edges 31. The tip of the injection port 11 and the retainer injection edge 31 can be welded and firmly fixed.

  As shown in FIG. 2, a helical retainer mounting screw portion 32 that protrudes inward can be formed in the retainer mounting holding portion 33. When the inlet 11 of the filler pipe 10 is closed with an opening / closing member such as a tank cap (not shown), a screw portion provided on the outer periphery of the tank cap is fitted into the retainer mounting screw portion 32 of the retainer mounting holding portion 33. Can install tank cap. The tank cap can prevent fuel and its vapor from flowing out from the inlet 11 of the filler pipe 10. When attaching a unit with a flap instead of a tank cap, the retainer 20 can be installed at the end of the unit with a flap to restrict the amount of the fuel gun 50 inserted.

  The retainer mounting engagement portion 34 is formed to have a smaller diameter than the retainer mounting holding portion 33. An inclined surface portion whose diameter is gradually reduced from the tip of the retainer mounting holding portion 33 connects the retainer mounting holding portion 33 and the retainer mounting engaging portion 34. The retainer mounting engagement portion 34 is formed in a cylindrical shape, and the outer diameter of the retainer mounting engagement portion 34 is slightly smaller than or the same as the inner diameter of a retainer gun restriction engagement portion 41 of a retainer gun restriction portion 40 described later. Is formed.

As shown in FIGS. 3 and 5, a retainer mounting engagement notch 35 is formed at the distal end portion of the retainer mounting engagement portion 34. In the present embodiment, the retainer mounting engagement notches 35 are formed at two locations, but may be formed at one location or at three or more locations. The retainer mounting engagement notch 35 is formed so as to enter the root side in parallel to the axial direction from the distal end portion of the retainer mounting engaging portion 34, and then is bent at a right angle and extends in the radial direction. It is formed in a letter shape. A retainer gun restriction engagement protrusion 42 of a retainer gun restriction part 40 described later is engaged with the retainer mounting engagement notch 35.
The length of the portion formed extending in the radial direction of the retainer mounting engagement notch 35 can be changed. Thereby, as will be described later, the direction of the retainer gun regulating cylinder portion 44 can be changed.

Next, the retainer gun restricting portion 40 will be described.
The retainer gun restricting portion 40 is made of synthetic resin. Since it is formed of synthetic resin, it can be formed by injection molding or the like, has a high degree of freedom in shape design, and the shape of the retainer gun restricting portion 40 can be freely selected. Moreover, it can be made lighter than metal and can contribute to weight reduction of the vehicle.

  The retainer gun restricting portion 40 made of synthetic resin can be freely formed in shape, can be easily formed into a cylindrical shape so as to securely hold the tip 51 of the fuel gun 50, The injection direction can also be freely controlled. Further, the tip end portion 51 of the fuel gun 50 can be held by the retainer gun restricting cylinder portion 44 so that the fuel ejection direction can be made constant. Furthermore, as shown in FIG. 7, the length (indicated by Y in FIG. 7) of the retainer gun restricting cylinder portion 44 can be freely changed.

  The retainer gun restricting portion 40 has a cylindrical retainer gun restricting / engaging portion 41 having an inner diameter that is the same as or slightly larger than the outer diameter of the retainer attaching / engaging portion 34 as described above on the side engaged with the retainer attaching portion 30. It has a cylindrical retainer gun restricting cylinder portion 44 formed with an outer diameter smaller than the retainer gun restricting engagement portion 41 formed continuously from the retainer gun restricting engagement portion 41.

  As shown in FIG. 6, a retainer gun restriction engagement protrusion 42 is formed on the inner surface of the retainer gun restriction engagement portion 41 at a portion corresponding to the retainer mounting engagement notch 35. The same number of retainer gun restricting engagement protrusions 42 are formed at locations corresponding to the retainer mounting engagement notches 35 and are engaged with the retainer mounting engagement notches 35.

  In this embodiment, the retainer gun restriction engagement protrusion 42 and the retainer attachment engagement notch 35 are formed. However, a thread portion is formed at the distal end portion of the retainer attachment engagement part 34, and the retainer gun restriction engagement part 41. The retainer mounting portion 30 and the retainer gun restricting portion 40 can be integrally coupled by forming a threaded portion at the inlet side portion of each of them and fitting the threaded portions together. In this case, the retainer mounting portion 30 and the retainer gun restricting portion 40 can be easily coupled integrally only by fitting the screw portions.

  The retainer gun restricting cylinder portion 44 is formed to have a smaller diameter than the retainer gun restricting engagement portion 41. A retainer gun restricting cylinder portion 44 is formed by gradually reducing the diameter of the retainer gun restricting engagement portion 41 from the tip. A connecting portion between the retainer gun restriction cylinder portion 44 and the retainer gun restriction engagement portion 41 is formed in a slope shape, and a retainer gun restriction slope portion 43 is formed. For this reason, as will be described later, the refueling gun 50 is easily inserted.

  As shown in FIG. 4, the retainer gun restriction cylinder portion 44 can be formed so as to be shifted from the center of the retainer gun restriction engagement portion 41. In this case, when the retainer gun restricting portion 40 is attached to the retainer attaching portion 30, the retainer gun restricting portion 40 is rotated relative to the retainer attaching portion 30 to change the axial attachment position (attachment angle). The position of the retainer gun restriction opening 45 can be changed with respect to the axial direction.

  That is, as shown in FIG. 4, the retainer gun restricting portion 40 can be rotated by an angle X. Then, the direction of the retainer gun restricting opening 45 of the retainer gun restricting cylinder portion 44 is changed, the flow direction of the fuel from the fuel gun 50 to the filler pipe 10 can be changed, and when the filler pipe 10 is bent, An optimal fuel flow inside the filler pipe 10 can be created.

  Further, the inner diameter of the retainer gun restricting cylinder portion 44 is formed to be slightly larger than the outer diameter of the tip portion 51 of the fuel gun 50. When the refueling gun 50 is inserted into the retainer 20, the front end portion 51 of the refueling gun 50 is inserted and held inside the retainer gun restricting cylinder portion 44 along the retainer gun restricting slope portion 43. For this reason, there is little blurring of the front-end | tip part 51 of the fuel supply gun 50, the fuel supply gun 50 can be reliably hold | maintained by the retainer gun control cylinder part 44, and the injection direction of the fuel to the filler pipe 10 is maintained to a predetermined direction. Can do.

  The tip of the retainer gun restricting cylinder portion 44 becomes a retainer gun restricting opening 45, and the retainer gun restricting opening 45 opens in the inner direction of the filler pipe 10 to determine the fuel injection direction and allow the fuel to flow in.

  As shown in FIG. 4, the retainer gun restriction cylinder portion 44 can be formed so as to be shifted from the central axis of the retainer gun restriction engagement portion 41. In this case, as described above, when the retainer gun restricting portion 40 is attached to the retainer attaching portion 30, the retainer gun restricting cylinder portion 44 is changed by changing the length of the radial notch portion of the retainer attaching engagement notch 35. The position of the deviation can be adjusted. That is, by changing the angle in the axial direction of the retainer gun restricting portion 40 with respect to the retainer attaching portion 30, the position of the opening of the retainer gun restricting cylinder portion 44 can be changed, and the inflow direction of the fuel into the filler pipe 10 can be changed. And an optimal fuel flow can be created.

Next, assembly of the retainer mounting portion 30 and the retainer gun restricting portion 40 and mounting to the filler pipe 10 will be described.
As shown in FIG. 6, two retainer gun restriction engagement protrusions 42 are formed inside the retainer gun restriction engagement part 41 of the retainer gun restriction part 40. As shown in FIG. 5, two retainer mounting engagement notches 35 are formed at the tip of the retainer mounting engagement portion 34 of the retainer mounting portion 30.

When the retainer gun restriction engagement portion 41 is inserted from the distal end side of the retainer attachment engagement portion 34, the retainer gun restriction engagement projection 42 is fitted into the retainer attachment engagement notch 35 and further rotated in the axial direction. The retainer gun restricting / engaging portion 41 and the retainer attaching / engaging portion 34 are integrally coupled by rotating along the retainer attaching / engaging notch 35 bent into an L-shaped bowl shape, and the retainer attaching portion 30 and the retainer gun restricting portion are integrally coupled. Part 40 unites.
The rotational angle of the retainer gun restricting portion 40 is determined by the length of the retainer mounting engagement notch 35 in the radial direction, and the position of the retainer gun restricting cylinder portion 44 is determined.

  At this time, as described above, instead of the retainer gun restriction engagement protrusion 42 and the retainer attachment engagement notch 35, when the thread portions of the retainer attachment engagement part 34 and the retainer gun restriction engagement part 41 are formed, The retainer mounting portion 30 and the retainer gun restricting portion 40 can be combined by screwing the screw portions together.

Next, as shown in FIG. 1, the retainer 20 is inserted into the inlet portion 12 of the filler pipe 10.
The retainer 20 can be fixed by fitting the retainer attachment holding portion 33 into the inlet portion 12. If it does so, the outer surface of the retainer attachment holding | maintenance part 33 and the inner surface of the inlet part 12 of the filler pipe 10 will closely_contact | adhere, and the retainer attachment part 30 will be hold | maintained reliably. The inner surfaces of the retainer mounting portion 30 and the inlet portion 12 of the filler pipe 10 are in contact with each other, so that the retainer 20 can be firmly held on the filler pipe 10. Moreover, the injection port 11 and the retainer injection edge 31 can be fixed by welding. Further, as shown in FIG. 1, the retainer mounting portion 30 can be attached by being caulked to the inlet portion 12 of the filler pipe 10.

  The outer surface of the retainer gun restricting / engaging portion 41 is in close contact with the inner surface of the inlet portion 12 of the filler pipe 10 and the inner surface of the retainer gun restricting / engaging portion 41 is in close contact with the outer surface of the retainer mounting / engaging portion 34. The restriction engaging portion 41 is sandwiched between the inlet portion 12 of the filler pipe 10 and the retainer mounting engaging portion 34. Accordingly, even if the retainer gun restricting portion 40 is made of synthetic resin, the retainer gun restricting portion 40 is stably held inside the filler pipe 10 because the retainer gun restricting portion 40 is sandwiched between the metal retainer mounting portion 30 and the metal filler pipe 10. Can be retained. In addition, as shown in FIG. 1, a seal ring 47 can be attached between the retainer gun restriction engagement portion 41 and the inlet portion 12 of the filler pipe 10 in order to improve the sealing performance.

DESCRIPTION OF SYMBOLS 10 Filler pipe 11 Inlet 20 Retainer 30 Retainer attachment part 33 Retainer attachment holding part 34 Retainer attachment engagement part 35 Retainer attachment engagement notch 40 Retainer gun restriction part 41 Retainer gun restriction engagement part 42 Retainer gun restriction engagement protrusion 44 Retainer gun restriction cylinder Part

Claims (7)

In the filler pipe that injects fuel into the fuel tank from the vehicle body filler port formed on the outer surface of the vehicle body,
Attach a retainer that holds the tip of the oil gun to the inlet of the filler pipe,
The retainer includes a retainer mounting portion that is attached to the inlet portion of the filler pipe, and a retainer gun restricting portion that is assembled to the retainer mounting portion.
The retainer mounting portion is made of metal, and is formed in a cylindrical retainer mounting and holding portion that is held in contact with the inner surface of the inlet portion of the filler pipe, and the retainer mounting and holding portion is formed on the distal end side of the retainer mounting holding portion. A cylindrical retainer mounting engagement portion formed with a smaller outer diameter,
The retainer gun restricting portion is formed of a synthetic resin, and a portion on the inlet portion side of the filler pipe is a cylindrical retainer gun restricting engaging portion having an inner diameter that is the same as or slightly larger than the outer diameter of the retainer mounting engaging portion. The retainer gun restriction engaging portion has a cylindrical retainer gun restriction cylinder portion formed on the distal end side and formed with an outer diameter smaller than that of the retainer gun restriction engagement portion.
The inner surface of the retainer gun restriction engagement portion is fitted to the outer surface of the retainer attachment engagement portion, and the retainer attachment portion and the retainer gun restriction portion are integrally coupled and inserted into the inlet portion of the filler pipe. Characteristic filler pipe.   A retainer mounting engagement notch is formed at the distal end portion of the retainer mounting engaging portion, a retainer gun restricting engagement protrusion is formed on the inner surface of the inlet side portion of the retainer gun restricting engaging portion, and the retainer mounting engaging notch is formed. 2. The filler pipe according to claim 1, wherein the retainer gun restricting engagement protrusion is fitted to a portion, and the retainer mounting portion and the retainer gun restricting portion are integrally coupled.   A threaded portion is formed at the distal end portion of the retainer mounting engaging portion, a threaded portion is formed at the inlet side portion of the retainer gun restricting engaging portion, the threaded portions are fitted together, and the retainer mounting portion and the above The filler pipe according to claim 1, wherein the retainer gun restricting portion is integrally coupled.   The outer surface of the retainer gun restriction engagement portion is in contact with the inner surface of the filler pipe inlet portion when the retainer is inserted into the inlet portion of the filler pipe. Filler pipe as described.   The filler pipe according to any one of claims 1 to 4, wherein the retainer gun restricting cylinder portion is formed so as to be shifted from a central axis of the retainer gun restricting engagement portion.   The filler pipe according to any one of claims 1 to 5, wherein an inner diameter size of the retainer gun regulating cylinder portion is slightly larger than an outer diameter of a tip portion of the fuel gun.   The filler pipe according to any one of claims 1 to 6, wherein a screw portion is formed at a distal end portion of the retainer mounting portion, and an opening / closing member that closes an opening of the retainer mounting portion is screwed.

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