JP5233191B2 - Body panel structure - Google Patents

Description

  The present invention relates to a vehicle body panel structure having a panel member that covers an on-vehicle device and has an opening on which a work target part of the on-vehicle device faces.

2. Description of the Related Art Conventionally, in order to perform maintenance of a vehicle mounting device such as a fuel tank provided below a panel member of a vehicle body, an opening of a vehicle body in which an upper portion of a pump unit, which is a work target part, faces the panel member is formed. A panel structure is known (see, for example, Patent Document 1 and Patent Document 2).
Japanese Patent No. 3367361 JP 2001-48057 A

  By the way, in the above-described vehicle body panel structure, when the opening has a circular shape in plan view, there is a problem that the workability of attaching the sealing member attached to the periphery of the opening is reduced.

  In addition, in order to improve the mounting workability of the sealing member, if the opening is made rectangular while ensuring the opening area of the circular opening, the opening area becomes too large, and the rigidity of the panel member is increased. There was a risk of lowering.

  Therefore, an object of the present invention is to provide a vehicle body panel structure capable of improving the mounting workability of the sealing member and preventing the rigidity of the panel member from being lowered.

In order to solve the above-mentioned problems, the present invention is a vehicle body panel structure having a panel member that covers a vehicle-mounted device that requires maintenance work and that has an opening that faces a work target portion of the vehicle-mounted device. The opening has an octagonal shape, the distance from the center position of the work target part facing the opening to each side of the octagonal shape exposes the work target part , and the maintenance It is characterized by having a groove portion that fits a sealing member on the outer peripheral surface of the peripheral portion while being set to a dimension capable of performing work .

  According to the present invention configured as described above, since the opening is close to the side surface of the work target part and the distance from the center to each side is substantially equal, the expansion of the opening area can be minimized and the panel A reduction in the rigidity of the member can be suppressed. In addition, since the opening has a polygonal shape, the sealing member can be attached to each side in a straight line, and can be easily attached, thereby improving attachment workability.

  The best mode for carrying out the panel structure of a vehicle body according to the present invention will be described with reference to the drawings.

  The vehicle body 1 shown in FIG. 1 is provided with a rear floor panel (panel member) 3 that covers an upper portion of a fuel tank 2 that is a vehicle-mounted device that requires maintenance or the like.

  The rear floor panel 3 is disposed at the rear of the vehicle and is positioned between the rear cross member 3a and the rear wheel house 3b (see FIGS. 3 and 4).

  The rear floor panel 3 is formed with an opening 10 facing a connection unit 5 which is a work target portion of a fuel pump 4 (see FIG. 2) attached in the fuel tank 2.

  Note that a large number of protrusions 3c extending in the vehicle front-rear direction are formed on substantially the entire surface of the rear floor panel 3 excluding the opening 10 (see FIG. 5B).

  The connection unit 5 includes a connection port 5a of a fuel pipe (not shown) protruding from the upper surface 4a of the fuel pump 4, a connection port 5b of a return pipe (not shown), a coupler 5c of an electrical connector, and the like. It is exposed upward through an opening 2b formed in the upper surface 2a.

  In FIG. 2, 6 is a fuel inlet, and 7 is a float that forms part of a fuel gauge that measures the amount of fuel.

  The opening 10 is located above the connection unit 5, and a cap 12 is detachably attached via a sealing member 11 attached to the peripheral edge. The cap 12 is fixed by a fixing means such as a clip or a screw (not shown) and seals the opening 10 in a watertight state.

  Here, the sealing member 11 is formed of a rubber material such as a ring-shaped ept seal, and is fitted into a groove portion 10 a formed at the peripheral edge of the opening 10.

As shown in FIG. 5A, the opening shape of the opening 10 is close to the side surface α of the connection unit 5 when viewed in plan, and is a distance d _{1 to} d from the center O to each side. _It has a substantially regular octagonal shape with ₈ being almost equal.

That is, in FIG. 5A, d ₁ ≈d ₂ ≈d ₃ ≈d ₄ ≈d ₅ ≈d ₆ ≈d ₇ ≈d ₈ and t ₁ ≈t ₂ ≈t ₃ ≈t ₄ ≈t ₅ ≈ t ₆ ≈t ₇ ≈t ₈ .

  Here, the side surface α of the connection unit 5 is the outer peripheral side surface of the upper surface 4a of the fuel pump 4, but the opening 10 can also face the tip of the connection port 5a of the fuel pipe protruding from the side surface α. The size is set (see FIG. 4).

  Further, a groove 13 is formed in the rear floor panel 3 so as to surround the periphery of the opening 10.

  Next, the operation of the vehicle body floor structure of the present invention will be described.

  First, in the unlikely event that a failure occurs in the fuel pump 4, the cap 12 is removed and the opening 10 is opened to expose the connection unit 5 of the fuel pump 4 that is the work target site.

  Thereby, maintenance such as repair work and replacement of the fuel pump 4 can be performed without removing the fuel tank 2 and the rear floor panel 3.

  Here, the opening 10 is set to a size that can approach the side surface α of the connection unit 5 and can also face the tip of the connection port 5a of the fuel pipe protruding from the side surface α.

  Therefore, the front end of the connection port 5 is not caught by the peripheral edge of the opening 10, and maintenance work such as replacement of the fuel pump 4 can be easily performed.

  In addition, since the opening 10 is close to the side surface α of the connection unit 5, the enlargement of the opening area of the opening 10 can be minimized and the rigidity of the rear floor panel 3 can be prevented from being lowered. Become.

  In particular, since the rear floor panel 3 has a large number of protrusions 3c formed on almost the entire surface excluding the opening 10, the rigidity can be further increased.

  Further, the rigidity of the rear floor panel 3 can be improved also by the groove 13 formed around the opening 10.

  On the other hand, in order to fit the sealing member 11 to the peripheral edge of the opening 10, first, a part of the ring-shaped sealing member 11 is hooked on the groove 10 a formed on the peripheral edge of the opening 10.

  And the sealing member 11 is pressed along the opening shape of the opening part 10, and it is made to fit in the groove part 10a.

  At this time, since the opening 10 has a substantially regular octagonal shape, after the sealing member 11 is linearly extended along one side and attached, the corner between the side and another adjacent side is attached. It can be attached by extending in a straight line along the other adjacent sides while pressing.

  As described above, the sealing member 11 can be attached in a straight line, and the sealing member 11 is pressed at the corners of the opening 10 so that the sealing member 11 is not easily displaced or detached during the attaching operation.

  Thereby, the sealing member 11 can be attached easily and the improvement of attachment workability | operativity can be aimed at.

  In FIG. 6, when the side shapes of the work target parts are the same, the opening shape of the opening 10 is a regular square, regular hexagon, regular octagon, regular decagon, and circle. The peripheral length (peripheral length), the mounting work time of the sealing member 11, and the vibration frequency of the rear floor panel 3 are shown.

  According to this, first, the perimeter is relatively short in the regular octagon, regular decagon, and circle, and the circle is the shortest. In this case, it can be determined that the shorter the circumference, the shorter the sealing member 11 and the better the performance.

  Moreover, the installation work time of the sealing member 11 is comparatively short for a regular square, a regular hexagon, and a regular octagon, and the regular square is the shortest. In this case, it can be determined that the performance is excellent because the shorter working time can be attached in a shorter time.

  Further, the regular octagon, the regular decagon, and the circle are relatively high in the vibration frequency, and the regular octagon is the highest. In this case, it can be determined that the higher the frequency, the lower the volume of the low-pitched sound that reverberates in the passenger compartment, and the better the performance.

  Thus, when the opening shape of the opening 10 is a regular octagon, it can be determined that the shape is most effective because of high performance in any of the circumference, working time, and frequency.

  Therefore, in the above-described embodiment, the opening 10 has a substantially regular octagonal shape in plan view. Therefore, when compared with other polygonal shapes, the mounting workability of the sealing member 11 can be improved most. At the same time, it is possible to prevent the rigidity of the rear floor panel 3 from being lowered most.

  As mentioned above, although embodiment concerning this invention has been explained in full detail with drawing, a concrete structure is not restricted to the above-mentioned embodiment. Design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.

  For example, in the above-described embodiment, the opening 10 has a substantially regular octagonal shape. However, the present invention is not limited to this, and a rectangular shape or a shape depending on the position where the opening 10 is provided, the size, shape, or the like of the work target portion. It may have a hexagonal shape or a decagonal shape.

  Even in this case, if the opening 10 is close to the side surface α of the work target site in a plan view, and the distance from the center O of the opening 10 to each side is substantially equal, the sealing is performed. The member 11 can be easily attached and the rigidity of the panel member can be prevented from being lowered.

  Furthermore, the vehicle-mounted device requiring maintenance or the like is not limited to the fuel tank 2 and may be a power unit such as an engine, a motor / control unit, or the like.

  In the above-described embodiment, the opening 10 is formed in the rear floor panel 3 as a panel member. However, a cross member, a rear strut member, and other panel members may be used.

It is a schematic diagram which shows the vehicle body which has the panel structure of the vehicle body which concerns on this invention. It is sectional drawing which shows the panel structure of the vehicle body which concerns on this invention. It is a top view which shows the panel structure of the vehicle body which concerns on this invention. It is a top view of the state which removed the cap in FIG. (A) is a top view which shows an opening part, (b) is a perspective view which shows a rear floor panel. It is a graph which shows the relationship between the opening shape of an opening part, circumference, work time, and frequency.

Explanation of symbols

2 Fuel tank (vehicle-mounted device)
3 Rear floor panel (panel member)
5 Connection unit (working part)
10 Opening α Side O Distance from the center d _{1 to} d ₈ center to each side

Claims (2)

A vehicle body panel structure that includes a panel member that covers a vehicle mounting device that requires maintenance work and that has an opening formed to face a work target portion of the vehicle mounting device.
The opening has an octagonal shape, the distance from the center position of the work target part facing the opening to each side of the octagonal shape exposes the work target part , and the maintenance work is performed. A panel structure for a vehicle body, which is set to a dimension that can be performed, and has a groove portion for fitting a sealing member on an outer peripheral surface of a peripheral edge portion . The vehicle body panel structure according to claim 1,
The opening is for maintenance of a fuel pump formed on the floor panel of the vehicle body.
A vehicle body panel structure characterized by that .

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