JPH0714073Y2 - Door mirror gasket mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a gasket mounting structure for a support member that supports a mirror body of a vehicle door mirror.

[Prior Art] A base, which is a supporting member for supporting a mirror body of a vehicle door mirror, has a flexible gasket and a polyurethane-based sealing material on a vehicle outer plate for the purpose of preventing wind noise, blocking rainwater and absorbing clearance. Is attached to the vehicle outer plate.

A conventional gasket mounting structure will be described with reference to an exploded perspective view of FIG. 3 and an enlarged cross-sectional view of a main part of FIG.

A hard member base 1 that supports the mirror body is attached to a vehicle outer plate 2 via a soft member gasket 3 and a seal member 4.

The base 1 has an adhesive layer 5 for gasket adhesion formed on the entire mounting surface of the base 1 with a butyl-based double-sided adhesive tape or a strong adhesive, and the gasket 3 has a double-sided adhesive on the surface facing the seal material 4 as described above. The adhesive layer 6 is formed by a tape or an adhesive, and the gasket 3 and the sealing material 4 are attached to the base 1 in advance as shown in FIG. 4 before being attached to the vehicle. As a structure other than the above, a clip for setting the gasket at a fixed position is provided on the base 1, and the clip is attached to the vehicle outer plate.

[Problems to be Solved by the Invention] In the conventional gasket mounting structure described above, when a double-sided adhesive tape is used for the adhesive layers 5 and 6 on the mounting surface of the base 1 and the gasket 3, it is troublesome to attach the tape. This not only increases the number of working steps, but also makes positioning difficult when sticking the gasket.

Further, when using the adhesive, it is necessary to properly hold the gasket on the mounting surface of the base 1 until the adhesive is solidified, which causes a decrease in commercial value due to the protrusion of the adhesive,
Similar to the above, it is difficult to set the adhesion position of the gasket, and in any of the above cases, it is complicated and inevitably requires manual work.

Also, there is a structure in which the clip is separately prepared, but this increases the cost.

An object of the present invention is to solve the above problems and to provide a gasket mounting structure capable of accurately positioning the gasket when fixing the gasket to the base and setting the gasket by a simple operation.

[Means for Solving the Problems] The present invention is a mounting structure for fixing the gasket to a base of a door mirror that is fixed to a vehicle outer plate via a gasket and a sealing material. A plurality of locking projections are provided on the base plate, and a mounting boss is provided at a substantially central portion.On the other hand, the gasket is provided with a fitting hole and a boss hole into which the locking projection and the mounting boss are respectively fitted. An adhesive layer is provided on the tip end surface of the protrusion that is inserted into the fitting hole and protrudes from the gasket, and a sealing material is fixed to the peripheral portion of the gasket including the tip end surface to secure the gasket with the base and the sealing material. This is a gasket mounting structure for a door mirror, which is characterized by being sandwiched and fixed.

[Operation of the Invention] With the above-described configuration, the invention of the present application, by stacking the gasket on the mounting surface of the base that is the support member of the mirror body,
By inserting several locking projections and mounting bosses provided in this base into the fitting hole and the boss hole of the gasket, respectively, the fitting hole and the boss hole correspond to the locking projection and the mounting boss, respectively. Since the gasket is provided, the gasket is fixed to the base while being always positioned in the correct position.

Then, a sealing material is laminated on the gasket, and the sealing material is adhered to the gasket with an adhesive provided on the peripheral portion of the gasket including the tip surface of the locking convex portion protruding from the gasket. It is sandwiched between and fixed to the base.

[Embodiment] FIG. 1 is an exploded perspective view showing an outline of the present invention, and FIG. 2 is an enlarged sectional view of an essential part showing a state in which a gasket is fixed by a tip surface of a convex portion of the present invention.

In the figure, 10 is a base of a door mirror, 11 is a mounting surface of the base, 12 is a locking projection, 13 is a tip surface of the locking projection, 14 is an adhesive layer, 15 is a gasket, 16 is a fitting hole, and 17 is a seal. Material, 20 is a mounting boss, and 21 is a boss hole of the mounting boss.

As shown in FIG. 1, the base 10, which is a supporting member, is formed of a hard member, and along the outer edge of the mounting surface 11, there are several locking projections 12 having a convex cross-section on the upper side, the side, and the lower side. Is projected,
A mounting boss 20 corresponding to the boss hole 21 is formed in the center.

The gasket 15 is made of a hard material and has a contour slightly larger than the mounting surface 11 of the base 10 as shown in FIG.
A fitting hole 16 for positioning is provided at a position corresponding to the convex portion 12, and a boss hole 21 corresponding to the boss 20 is provided at the center.

The tip surface 13 of the locking projection 12 is formed to have the same height as the gasket 15 when the gasket 15 is overlaid on the base 10 or to be slightly projected.

The sealing material 17 has a contour of almost the same shape as the mounting surface 11 of the base 10, and when the sealing material 17 is superposed on the mounting surface 11 of the base 10, a pressing member that sufficiently covers the tip end surface 13 of the locking convex portion. It has an allowance t and has a gasket on the mounting surface 11 of the base 10.
After stacking the locking projections 15 and the fitting holes 16 while positioning them, a sealing material 17 is attached or fixed to the tip surface 13 of the locking projections 12 with a double-sided adhesive tape or an adhesive layer 14 formed of an adhesive. The gasket 15 together with the sealing material 17
Fixed to.

With the above configuration, when mounting the gasket 15 on the base 10, positioning is performed by the locking projection 12 and the mounting boss 20.
With the use of the fitting hole 16 and the boss hole 21, it is possible to perform surely and easily. Base 10 of gasket 15 and sealing material 17
Can also be set easily by forming an adhesive layer on the tip end surface 13 of the locking projection.

[Advantages of the Invention] According to the present invention, by the above means, the positioning at the time of mounting the gasket can be easily and accurately performed by inserting the locking projection and the mounting boss into the fitting hole and the boss hole, respectively.

Furthermore, if the gasket and the sealing material are fixed with an adhesive or the like through the tip surface of the locking projection, the gasket will be fixed to the base naturally, so it can be prepared for automation instead of the conventional manual work. Can be moved to.

Further, since the use of the adhesive or the double-sided adhesive tape is minimized only on the tip end surface of the locking convex portion, it contributes to cost reduction.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an outline of a gasket mounting structure of the present invention, FIG. 2 is an enlarged sectional view of an essential part of FIG. 1, and FIG. 3 is an exploded perspective view showing an outline of a conventional gasket mounting structure. Four
The figure is an enlarged cross-sectional view of the main part of FIG. 10 …… Base that is a support member, 11 …… Base mounting surface,
12 …… Convex part, 13 …… Tip surface, 14 …… Adhesive layer, 15 …… Gasket, 16 …… Insertion hole, 17 …… Seal material, 20 …… Mounting boss, 21 …… Boss hole.

Claims (1)

[Scope of utility model registration request] 1. A mounting structure for fixing the gasket to a base of a door mirror fixed to a vehicle outer plate via a gasket and a sealing material, wherein several locking projections are provided inside a peripheral portion of a mounting surface of the base. And a mounting boss at substantially the center of the gasket.On the other hand, the gasket is provided with a fitting hole and a boss hole into which the locking projection and the mounting boss are respectively fitted, and then inserted into the fitting hole. An adhesive layer is provided on the tip surface of the protrusion protruding from the gasket, and a sealing material is fixed to the peripheral portion of the gasket including this tip surface, and the gasket is sandwiched and fixed by the base and the sealing material. Characteristic door mirror gasket mounting structure.