JP3246584U - Door hole cover mounting structure - Google Patents

Abstract

[Problem] To provide a mounting structure for a door hole cover that can be easily mounted on a door inner panel without requiring extra parts, for a door hole cover that closes an opening in a door inner panel. [Solution] A door hole cover 10 is configured to close an opening by forming an inner panel seal surface 4 that is flanged toward the inside of the door on the periphery of the opening of an inner panel 1, and comprising a cover portion 11 that blocks the opening, an outer edge portion 12 that is continuously formed around the periphery of the cover portion, and a plurality of locking portions. The outer edge portion has a flexible bulge portion 13 with a U-shaped cross section, and on the outer peripheral surface of the bulge portion, a main seal portion 14 that has an arc-shaped cross section and is configured to be in line contact with the inner panel seal surface, and a lip portion 15 that is continuous with the bulge portion and extends in the outer peripheral direction. [Selected Figure] Figure 2

Description

This invention is related to the mounting structure of a door hole cover for blocking an opening formed in a vehicle door inner panel from the outside of the door.

Vehicle doors are generally made up of an outer panel and an inner panel joined together by hemming or other processes, and devices for raising and lowering the window glass are installed inside. For this reason, an opening is usually provided in the inner panel to service this device. A door hole cover may be attached to close this opening from the outside of the door.

Such door hole covers are required to prevent water from entering the vehicle through gaps in the window glass when washing the car or when it is raining, and also to ensure sound insulation and heat insulation. Therefore, door hole covers are required to have an installation structure that closes the opening while ensuring airtightness around the opening.

In light of this background, a mounting structure has been proposed in which a door hole cover is fastened to an inner panel with bolts, as shown in Patent Document 1.

Specifically, as shown in FIG. 5, a seal member is housed in a seal groove formed on the outer peripheral edge of the carrier plate (door hole cover) on the vehicle exterior side, and a panel mounting portion for mounting the carrier plate to the door inner panel is formed on the inner periphery of the seal groove portion. The panel mounting portion is formed with a bolt hole passing therethrough, and the carrier plate is attached to the door inner panel by aligning the bolt hole with the mounting hole in the door inner panel and fastening the bolt to the weld nut welded to the door inner panel, thereby closing the opening.

JP 2007-198056 A

However, the configuration of Patent Document 1 requires the carrier plate to be positioned and then bolted, which increases the number of steps. In addition, parts such as sealing members and bolts are required, which increases costs.

This invention was made to address these problems, and the purpose of this invention is to provide a mounting structure for a door hole cover (carrier plate) that closes the opening of a door inner panel, which allows the door hole cover to be easily attached to the door inner panel without requiring any extra parts.

The ideas for solving the above problems are explained below.

The invention according to claim 1 is a mounting structure for a door hole cover that is detachably attached from the outside of the door to an opening formed in an inner panel of a vehicle door and closes the opening. The periphery of the opening of the inner panel is formed with an inner panel seal surface that is flanged toward the inside of the door. The door hole cover is composed of a cover part that blocks the opening, an outer edge part that is continuously formed around the cover part, and a plurality of locking parts. The outer edge part has a flexible bulge part with a U-shaped cross section, a main seal part formed on the outer circumferential surface of the bulge part, and a lip part that extends in the outer circumferential direction continuous with the bulge part. The locking part extends from the vicinity of the outer periphery of the cover part toward the inside of the door, and an engagement part is formed at the tip part that extends toward the end of the inner panel seal surface. When the door hole cover is attached to the inner panel, the inner panel seal surface and the main seal part come into contact, the lip part and the inner panel come into contact, and the end of the inner panel seal surface and the engagement part engage.

This door hole cover configuration can provide the function of blocking the opening of the door inner panel without requiring extra parts such as sealing materials or bolts. In other words, the opening can be blocked by the main seal portion and lip portion of the door hole cover being pressed against the door inner panel. In addition, the flexibility of the door hole cover, particularly the outer edge portion, allows the pressure contact portion to be pressed and held at an appropriate pressure to seal the opening. In addition, the door hole cover can be engaged and held in a specified position against the door inner panel by the multiple locking portions.

The device according to claim 2 is characterized in that, in addition to the configuration of claim 1, the main seal portion has an outwardly convex arc shape in cross section and is configured to make line contact with the inner panel seal surface at a predetermined pressure.

With this configuration of the main seal portion, even if the contact area between the inner panel seal surface and the main seal portion changes due to shape variations, the area configured as the main seal portion will not come off the inner panel seal surface, ensuring sealing performance.

This invention provides a door hole cover mounting structure that closes the opening of the inner panel, which can be easily installed without the need for extra parts and provides a structure that closes reliably.

1 is a schematic view of a door assembly equipped with a door hole cover according to an embodiment of the present invention, as viewed from the inside of a vehicle. 2 is a cross-sectional view (cross-section A-A) of the engagement portion of the door hole cover according to the embodiment of the present invention. FIG. 4 is a view showing the arrangement of the engagement portion of the door hole cover according to the embodiment of the present invention; FIG. 1 is a perspective view showing the appearance of an engagement portion of a door hole cover according to an embodiment of the present invention; This is a carrier plate mounting structure disclosed in Japanese Patent Application Laid-Open No. 2007-198056.

REFERENCE SIGNS LIST 1 Inner panel 2 Opening 3 Flange processing portion 4 Inner panel seal surface 5 Door assembly 10 Door hole cover 11 Cover portion 12 Outer edge portion 13 Bulging portion 14 Main seal portion 15 Lip portion 16 Lip seal portion 20 Engagement portion 21 Hook-shaped portion

The following describes in detail an embodiment of the present invention with reference to the drawings. Note that the present invention is not limited to the following embodiment. Furthermore, appropriate modifications are possible without departing from the scope of the effects of the present invention.

(Door hole cover configuration)
Fig. 1 is a schematic diagram of a door assembly 5 including a door hole cover 10 of the present invention as viewed from the inside of the vehicle (inner panel side), with the left direction of the drawing being the front direction of the vehicle. Fig. 2 illustrates a cross section (A-A cross section) including the engaging portion 20 shown in Fig. 3 to show the mounting structure of the door hole cover 10. Fig. 4 is a perspective view illustrating the shape of the outer edge portion 12 including the engaging portion 20 so that it can be seen.

The door assembly 5 has an opening 2 for service, as shown in FIG. 1, to accommodate a motor (not shown) for raising and lowering the window glass. Furthermore, the opening 2 is closed with an airtight door hole cover 10 to prevent water from entering the vehicle through the gap between the window glass and the door. Furthermore, since vehicles are required to be quiet and economical, the door hole cover 10 is also required to have soundproofing and heat insulation functions.

The opening 2 of the inner panel 1 is located at the rear of the door for ease of service, as shown in Figure 1. In addition, as shown in Figure 3, six engagement parts 20 are arranged at approximately equal intervals around the periphery of the door hole cover 10, and these engagement parts 20 function to fit and secure the door hole cover 10 to the opening 2.

As shown in FIG. 2, a flanged portion 3 is integrally formed around the entire periphery of the opening 2 of the inner panel 1 so as to intersect with the inner panel 1 at a substantially right angle toward the inside of the door. The opening 2 with this flanged portion is usually formed by piercing and flange processing in a press process. As shown in FIG. 1 and FIG. 3, the door hole cover 10 has a plate-shaped cover portion 11 that has substantially the same shape as the opening 2 in a plan view and shields the opening 2.

As shown in FIG. 2, an outer edge 12 is formed around the entire outer periphery of the cover portion 11 to ensure airtightness of the door hole cover 10 between the cover portion 11 and the inner panel 1. The outer edge 12 is composed of a bulge portion 13 that bulges outward in a U-shape in cross section toward the inside of the door, and a lip portion 15 that extends further outward from the bulge portion 13. A main seal portion is formed on the outer periphery of the bulge portion 13, and a lip seal portion 16 is formed on the tip of the lip portion 15 on the inner panel 1 side.

As described above, the engagement parts 20 arranged at six locations on the periphery of the door hole cover 10 extend from the periphery of the cover part 11 in a direction generally perpendicular to the inside of the door and have hook-shaped parts 21 at their ends that extend toward the end of the flange processing part 3 of the inner panel 1 and engage with the flange processing part.

Depending on the required functionality, various resins with flexibility, sealing properties, etc. can be used as the material for the door hole cover 10, but in this embodiment, low-density polyethylene is used.

(Installing door hole covers)
2, the outer edge portion 12 is manufactured in a state where the bulge portion 13 projects outward from the outer edge of the opening 2. To attach the door hole cover 10 to the opening 2 from this state, the door hole cover 10 must first be attached in a position where its outer shape corresponds to the outer shape of the opening 2, and then the worker must attach the door hole cover 10 while shrinking the outer periphery of the bulge portion 13 so that it fits into the opening 2. At the same time, the six engagement portions 20 are engaged with the ends of the flanged portion 3 of the inner panel 1 while the door hole cover 10 is attached.

As shown in Figure 2, the bulge 13 is in a free state as shown by the dashed line before installation, but after installation, the flexibility of the bulge 13 causes the U-shaped cross section to be crushed. At this time, a restoring force due to elasticity acts on the bulge 13, so the main seal portion 14 is pressed against the inner panel seal surface 4 with a predetermined pressure, thereby exerting a sealing function. In addition, the lip portion 15 is also pressed against the inner panel seal surface 4 with a restoring force due to elasticity, so a predetermined surface pressure is also applied to the lip seal portion 16, thereby exerting a sealing function.

In addition, the main seal portion 14 on the outer periphery of the bulge portion 13 is formed in an outwardly convex arc shape as shown in Figure 2. Therefore, even if the pressure contact portions of the inner panel seal surface 4 and the main seal portion 14 fluctuate due to shape variations, the portion configured as the main seal portion 14 will not come off the inner panel seal surface, ensuring sealing performance. In addition, because the main seal portion 14 is formed in an arc shape, the contact of the main seal portion 14 with the inner panel seal surface is always close to a line contact, ensuring a specified surface pressure on the seal surface and ensuring sealing performance.

In addition, the hook-shaped parts 21 of the six engaging parts 20 are formed to protrude by several mm in a free state relative to the inner diameter of the inner panel opening 2. Therefore, when attaching the door hole cover 10 to the opening 2, it is necessary to perform the work while tilting the engaging parts 20 inward and moving the hook-shaped parts 21 inward due to the flexibility of the cover part 11. When the installation is completed and the worker's restraint is released, the door hole cover 10 tries to return to a free state due to its elasticity, so the engaging parts 20 return to their original shape and the hook-shaped parts 21 are engaged with the ends of the flange processed parts 3 of the opening 2. This completes the fixing of the door hole cover 10 to the inner panel 1.

Claims (2)

A mounting structure for a door hole cover that is detachably attached from an exterior side of a vehicle door to an opening formed in an inner panel of the door and closes the opening,
The opening of the inner panel is formed with a flanged inner panel seal surface toward the inside of the door at the periphery of the opening of the inner panel.
The door hole cover is composed of a cover portion that covers the opening, an outer edge portion that is continuously formed around the cover portion, and a plurality of locking portions formed thereon,
the outer edge portion has a flexible bulge portion having a U-shaped cross section, a main seal portion formed on an outer peripheral surface of the bulge portion, and a lip portion extending in an outer peripheral direction continuous with the bulge portion,
The locking portion extends from the vicinity of the outer periphery of the cover portion toward the inside of the door, and an engagement portion is formed at the tip end thereof, the engagement portion extending toward the end of the inner panel seal surface,
When the door hole cover is attached to the inner panel, the inner panel seal surface and the main seal portion come into contact with each other, the lip portion and the inner panel come into contact with each other, and an end of the inner panel seal surface and the engagement portion are engaged with each other.
Door hole cover mounting structure. The main seal portion has an outwardly convex arcuate cross section and is configured to make line contact with the inner panel seal surface at a predetermined pressure.
The door hole cover mounting structure according to claim 1.

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