JP3890890B2 - Resin tank upper plate cover structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention is definitive the fuel tank of a vehicle, to a structure of the mounting portion of the fuel tube to refuel the fuel to the engine.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vehicle such as an automobile, a fuel tank has a fuel tube and a quick connector that connects the fuel tube to an engine-side pipe or the like led out from an upper plate or the like provided on the upper surface of a metal tank body.
[0003]
Such a metal fuel tank is configured to protect the lead-out portion of the fuel tube, the quick connector, and the like by directly fixing a protector member to the tank body.
[0004]
As shown in FIGS. 9 and 10, the fuel tube 1 and the quick connector 2 are connected to each other by a protrusion 3 formed on the peripheral edge of the fuel tube 1. Over 4 and 4 will be held.
[0005]
In such a connection between the fuel tube 1 and the quick connector 2, the fuel tube 1 or the quick connector 2 is pulled out in the pulling direction in order to prevent a half-fitted state.
[0006]
Also, in order to simplify the checking process, in the fully engaged state, the protrusions 3 are provided with the anti-poker prevention pins 5 that allow the leg portions 6 and 6 to be opened and removed so that the fuel tube 1 is completely connected to the quick connector. Only when it is fitted to 2, the protrusions 3 push the leg portions 6, 6 of the anti-poker prevention pin 5 so as to be detached.
[0007]
[Problems to be solved by the invention]
However, in the conventional one having such a metal tank body, the lead-out portion of the fuel tube can be protected by directly fixing the protector to the tank body, but the resin tank body In the fuel tank having the above, since the mounting portion is also made of resin, it is difficult to firmly fix the protector member to the tank body.
[0008]
Further, in the connection between the fuel tube 1 and the quick connector 2, there is no method other than visually confirming whether or not the anti-poker pin 5 has been removed.
[0009]
For this reason, care must be taken to avoid oversight, and the check process is complicated.
[0010]
Therefore, an object of the present invention is to solve the above-mentioned problems, and to protect the upper plate and the fuel tube lead-out portion, while checking the fitting state of the quick connector without visually recognizing the work process. An object is to provide a resin tank upper plate cover structure that can be simplified.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the invention described in claim 1, an upper plate cover member for protecting an upper plate provided in a part of the resin tank body and a fuel tube led out from the upper plate is provided. A resin tank upper plate cover structure, wherein the upper plate cover member has a metal lock ring member interposed in a cylindrical opening of the resin tank body to which the upper plate is fitted and fitted. Anti-poker prevention that prevents the connector member connecting the upper plate and the fuel tube from being semi-fitted in a state where the upper plate cover member is externally fitted to the lock ring member. The lock ring portion is provided in a position where it interferes with the pin and the anti-poker prevention pin is not detached. Is characterized in the upper plate cover structure fitted impossible to become a resin tank.
[0012]
According to the first aspect of the present invention configured as described above, the cylindrical opening includes the upper plate fitted in the cylindrical opening of the resin tank body and the metal lock ring member fitted externally. The lock ring member made of metal is attached to a portion where the upper plate cover member is externally fitted and attached. For this reason, the rigidity of an attachment part can be made favorable.
[0013]
Therefore, the upper plate cover member is firmly fixed to the resin tank main body in a state where the upper plate cover member is fitted and attached to a metal lock ring member.
[0014]
Further, since the upper plate cover member can be mounted without being brought into direct contact with the upper plate, the damage of the upper plate cover member is less likely to affect the upper plate or the like as compared with those in direct contact. The protective performance of the upper plate and the fuel tube can be improved.
[0016]
In addition , since a part of the upper plate cover member is provided at a position where it interferes with the anti-poker pin for preventing half-fitting, the anti-poker prevention is provided when the anti-poker pin is not removed. A pin inhibits external fitting to the lock ring.
[0017]
For this reason, since the upper plate cover member cannot be externally fitted to the lock ring member in a state where the fitting is not completely performed, such as half-fitting, the assembly of the upper plate cover member During the work, the half-fitted state is reliably checked without relying on visual observation, and the work process can be simplified.
[0018]
Then, those described in claim 2, before Symbol upper plate cover member with respect to inspection opening periphery of the vehicle body panel, according to claim 1, characterized in that it has an energy dispersion surface inclined at a predetermined angle The upper plate cover structure of the resin tank.
[0019]
Thus by way of the configured claim 2, even if there is an input of a large collision energy, such as collision, against inspection opening periphery of the vehicle body panel, the energy dispersion surface is inclined at a predetermined angle Therefore, the collision energy is dispersed along the inclination direction of the energy dispersion surface portion to protect the upper plate and the fuel tube.
[0020]
Further, according to a third aspect of the present invention, there is provided the upper plate cover structure for a resin tank according to claim 1 or 2 , wherein the upper plate cover member has a size that can be inserted from an inspection port of a vehicle body panel. It is a feature.
[0021]
According to the third aspect configured as described above, since the upper plate cover member can be attached and detached via the inspection port, workability is good.
[0022]
Also, those described in claim 4, wherein the connector member is configured to convert the fuel tube extending direction in a direction substantially orthogonal to the extending direction of the fuel tube, the upper plate cover member, the connector A retaining portion is provided for retaining the member so that the member cannot be pulled out in a state where the member is externally fitted to the lock ring member.
[0023]
According to the fourth aspect of the present invention configured as above, in the state where the upper plate cover member is externally fitted to the lock ring member, the connector member is provided by a retaining portion provided on the upper plate cover member. It is secured so that it cannot be removed.
[0024]
For this reason, the connection between the connector member and the fuel tube can be maintained and the fuel supply can be maintained.
[0025]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1
Hereinafter, a specific first exemplary embodiment of the present invention will be described together with illustrated examples. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.
[0026]
1 to 8 show the upper plate cover structure of a resin tank according to Embodiment 1 of the present invention.
[0027]
First, the structure will be described. In the upper plate cover structure of the first embodiment, a resin tank body 7 made of resin is mounted inside the vehicle.
[0028]
A cylindrical tubular opening 8 is formed in the upper part of the resin tank body 7.
[0029]
A resin upper plate 9 is fitted into the cylindrical opening 8 with a packing member 10 formed of an elastic member having a substantially L-shaped cross section interposed.
[0030]
The upper plate 9 includes a lid body 9a that substantially closes the cylindrical opening 8, and a cylindrical leg that is in contact with the inner peripheral surface 8a of the cylindrical opening 8 with the packing member 10 interposed therebetween. A portion 9b and a flange portion 9c extending from the lid body portion 9a toward the radially outer side than the leg portion 9b are provided.
[0031]
A fuel tube 11 is led out from the upper plate 9 so as to communicate with the inside and outside of the resin tank body 7, and the tip 11a is directed in the vehicle forward direction (the direction of the white arrow C in FIG. 2). ing.
[0032]
The quick connector 2 as a connector member is attached to the fuel tube tip 11a.
[0033]
In the quick connector 2, a fuel outlet port 2 a is extended from the connector body 2 d so as to change a fuel tube extending direction in a direction (vehicle width direction) substantially orthogonal to the direction in which the fuel tube 11 is led out. One end 2c of the nylon tube 2b extending in the engine direction is connected to the fuel outlet 2a.
[0034]
Moreover, as shown in FIG. 2, the external thread part 13 is formed in the outer peripheral surface 8b of the said cylindrical opening part 8. As shown in FIG.
[0035]
Then, the female screw portion 14 is screwed into the male screw portion 13 of the outer peripheral surface 8b, and the metal lock ring member 12 is externally fitted.
[0036]
The lock ring member 12 includes an upper surface inward flange portion 12a having a large-diameter opening portion 12c in the center, and a ring-shaped portion 12b that forms an annular side wall portion and has the female screw portion 14 formed on the inner peripheral surface thereof. It is mainly composed.
[0037]
Then, by screwing the female screw portion 14 of the lock ring member 12 to the male screw portion 13, the upper surface inward flange portion 12a moves downward in FIG. 2, and the flange portion 9c is moved to the cylinder. The packing member 10 is interposed on the upper edge 8c of the shaped opening 8 and pressed.
[0038]
An upper plate cover member 15 that protects the upper plate 9 and the fuel tube 11 and the like led out from the upper plate 9 is provided in the cylindrical opening 8 of the resin tank body 7 in the metal lock ring member 12. It is fitted outside.
[0039]
The upper plate cover member 15 mainly includes a cover main body 16 that protects the upper plate 9 and the fuel tube 11 and the like, and is integrally extended downward from the front edge of the cover main body 16 so that the lock ring A front cover portion 17 formed with front locking claws 17a, 17a locked to the lower edge portion 12d of the member 12 at the lower end portion, and once extended from the rear edge of the cover body 16 toward the rear of the vehicle. In addition, the rear arm portion 18 is formed with a rear side locking claw portion 18a which is bent downward and is locked to the lower edge portion 12d of the lock ring member 12 at the lower end portion.
[0040]
The outer diameter of the upper plate cover member 15 is larger than the inner diameter of the inspection port 20 so that the resin tank body can be inserted through the inspection port 20 formed in the vehicle body panel 19 for use when inspecting the resin tank body. Is set too small.
[0041]
In the first embodiment, the upper portion of the inspection port 20 is further covered with a cover member 21.
[0042]
The cover body 16 is formed with a ceiling portion 16a as a part located on the upper plate 9 side. As shown in FIG. 2, the ceiling portion 16 a is provided at a position where it interferes with the non-fitting prevention anti-pinning pin 5, and when the anti-poking prevention pin 5 is not detached, the upper portion 16 a The plate cover member 15 is configured such that it cannot be fitted onto the lock ring member.
[0043]
Further, the cover body 16 has an energy dispersion surface portion 16b that is inclined at a predetermined angle with respect to the peripheral edge 20a of the inspection port 20.
[0044]
Further, the cover main body 16 is formed with an L-shaped guide groove portion 16c as a retaining portion.
[0045]
As shown in FIGS. 1 to 3, the quick connector 2 is positioned in the L-shaped guide groove portion 16c in a state where the upper plate cover member 15 is externally fitted to the lock ring member 12, and The front wall portion 16d of the L-shaped guide groove portion 16c is positioned in front of the connector main body 2d of the quick connector 2, and is prevented from being pulled out.
[0046]
Next, the operation of the first embodiment will be described.
[0047]
In the first embodiment, first, the upper plate 9 is fitted into the cylindrical opening 8 of the resin tank body 7 with the packing member 10 interposed.
[0048]
Then, by screwing the female screw portion 14 of the metal lock ring member 12 into the male screw portion 13, the upper surface inward flange portion 12a moves downward in FIG. 2, and the flange portion 9c is moved. While the packing member 10 is interposed on the upper edge 8 c of the cylindrical opening 8, the lock ring member 12 is fitted onto the cylindrical opening 8.
[0049]
In this manner, the cylindrical opening 8 is sandwiched from inside and outside, and the lock ring member 12 is attached to a portion where the upper plate cover member 15 is externally fitted and attached. Since the lock ring member 12 is made of metal, the rigidity of the mounting portion can be improved.
[0050]
Next, the nylon tube 2b is attached to the tip 11a of the fuel tube 11 via the quick connector 2, and the anti-poker pin 5 is removed.
[0051]
In this state, the upper plate cover member 15 is inserted through the inspection port 20, and the L-shaped guide groove portion 16c is aligned with the mounting shape of the quick connector 2 and the nylon tube 2b while the lock ring member 12 The front locking claws 17a and 17a are locked to the lower edge 12d, and the rear locking claw 18a is locked to the lower edge 12d.
[0052]
Since the front cover portion 17 and the rear arm portion 18 bend in the expanding direction at a relative distance while being elastically deformed, the upper plate cover member 15 can be easily moved from above via the inspection port 20. The lock ring member 12 is externally fitted.
[0053]
The lock ring member 12 is made of metal, and is screwed into the cylindrical opening 8 to be externally fitted, so that the attachment portion has high rigidity. Accordingly, the upper plate cover member 15 is firmly fixed to the resin tank body 7 in a state in which the upper plate cover member 15 is externally fitted to and attached to the metal lock ring member 12.
[0054]
Further, since the upper plate cover member 15 can be mounted without being in direct contact with the upper plate 9, damage to the upper plate cover member 15 is caused by damage to the upper plate 9 or the resin tank main body as compared with the case in which the upper plate cover member 15 is not in direct contact. 7 and the like, and the protective performance of the upper plate 9, the fuel tube 11, the resin tank body 7 and the like can be improved, and is suitable for use in, for example, a resin tank body 7 made of resin. .
[0055]
In addition, since the ceiling portion 16a of the upper plate cover member 15 is provided at a position where it interferes with the non-fitting prevention anti-poker pin 5, The prevention pin 5 hits the ceiling portion 16 a and obstructs the external fitting of the upper plate cover member 15 to the lock ring member 12.
[0056]
For this reason, in a state where the fitting is not completely performed, such as half-fitting, the upper plate cover member 15 cannot be externally fitted to the lock ring member 12. During assembly work, it is reliably checked that it is in a semi-fitted state without relying on visual observation, and the work process can be simplified.
[0057]
Then, there is an input of a large collision energy at the time of a collision, for example, the resin tank body 7 moves in the vehicle forward direction indicated by the white arrow C in FIG. 2, and the upper plate cover member 15 is moved to the inspection. Even if it interferes with the peripheral edge 20a of the mouth 20, the energy dispersion surface portion 16b is inclined at a predetermined angle, so that collision energy is dispersed along the inclination direction of the energy dispersion surface portion 16b, and the upper plate 9 and the fuel tube 11 are protected.
[0058]
Furthermore, in this Embodiment 1, since the said upper plate cover member 15 can be mounted / removed through the said inspection port 20, workability | operativity is favorable.
[0059]
Further, when the upper plate cover member 15 is externally fitted to the lock ring member 12, the quick connector 2 cannot be pulled out by the L-shaped guide groove portion 16c provided in the upper plate cover member 15. It is prevented from coming off.
[0060]
For this reason, the connection between the quick connector 2 and the tip 11a of the fuel tube 11 is maintained and the fuel supply can be maintained.
[Brief description of the drawings]
FIG. 1 is a partially transparent perspective view showing an upper plate cover structure of a resin tank according to a first embodiment of the present invention and showing a state attached to a fuel tank of a vehicle.
2 shows the upper plate cover member according to the first embodiment, and is a cross-sectional view at a position along the line AA in FIG. 1. FIG.
3 shows the upper plate cover member according to the first embodiment, and is a cross-sectional view taken along a line BB in FIG. 1. FIG.
FIG. 4 is a top view of the upper plate cover member according to the first embodiment.
FIG. 5 is a side view of the upper plate cover member according to the first embodiment.
FIG. 6 is a bottom view of the upper plate cover member according to the first embodiment.
7 is a cross-sectional view of the upper plate cover member according to the first embodiment at a position along the line DD in FIG. 4. FIG.
8 is a rear view of the upper plate cover member according to Embodiment 1. FIG.
FIG. 9 is a perspective view of the vicinity of the tip of the fuel tube for explaining the operation of the quick connector.
FIG. 10 is a cross-sectional view illustrating the configuration of a quick connector.
[Explanation of symbols]
2 Quick connector (connector member)
7 Resin tank body (fuel tank body)
8 Cylindrical opening 9 Upper plate 11 Fuel tube 12 Lock ring member 15 Upper plate cover member 16a Ceiling (part)
16b Energy dispersive surface portion 16c L-shaped guide groove (preventing part)
20 Inspection port 20a

Claims (4)

An upper plate cover structure of a resin tank having an upper plate provided on a part of the resin tank main body and an upper plate cover member for protecting a fuel tube led out from the upper plate,
The upper plate cover member is formed by fitting a metal lock ring member to a cylindrical opening of the resin tank main body on which the upper plate is fitted and mounted. The member is provided at a position where it interferes with the anti-fogging prevention pin for preventing the half-fitting of the connector member connecting the upper plate and the fuel tube in a state of being fitted on the lock ring member. An upper plate cover structure for a resin tank, wherein the lock prevention member cannot be fitted onto the lock ring member in a state where the anti-shock prevention pin is not removed. Before SL upper plate cover member with respect to inspection opening periphery of the vehicle body panel, the upper plate cover structure of the resin tank according to claim 1, characterized in that it has an energy dispersion surface inclined at a predetermined angle. The upper plate cover member, the upper plate cover structure of the resin tank according to claim 1 or 2, characterized in that it has an insertion size capable of inspection opening of the car body panel.   The connector member converts a fuel tube extending direction to a direction substantially orthogonal to a fuel tube lead-out direction, and the upper plate cover member is externally fitted with the connector member to the lock ring member. The resin tank upper plate cover structure according to any one of claims 1 to 3, further comprising a retaining portion that prevents the retaining portion from being pulled out.

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