JPH0511086Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for attaching a cover to a stay of an inner mirror.

[Prior Art] A general example of an interior mirror cover mounting structure is shown in FIG. 7. In this structure, a stay 20 for holding a mirror m via a pivot P is mounted on the ceiling of a vehicle (not shown). It is fixed to a metal fitting, and is constructed so that it will come off from the metal fitting if an excessive impact is applied.

On a production line or when replacing an existing mirror with an arbitrary mirror, the cover 21 is fixed with one touch after the stay 20 is held by the metal fittings.

This stay 20 is molded from metal such as aluminum alloy, and its exposed surface is covered with the resin cover 21 to give a beautiful finish to the support portion of the inner mirror M.

In the illustrated conventional example, engagement recesses 22 and grooves 23 are provided on both sides of the stay 20, while the cover 2
Projections 24 and 25 that engage with the recesses 22 and grooves 23 are protrudingly provided on the inner wall surface of 1.

That is, the protrusions 24 and 25 protrude inside the cover 21, and the protruding portions are accommodated in the recess 22 and groove 23.

Note that the cover 21 in the figure is shown as viewed from the ceiling side (see FIG. 7).

To attach the cover 21 to the stay 20,
Since the protrusions 24 and 25 come into contact with the ends of the stay 20, the cover 21 is covered with the stay 20 in a slightly expanded state due to its elasticity, and the recess 2
2 and groove 23, it elastically returns to its original state and the protrusions 24 and 25 fit together (see FIGS. 8 and 9).

[Problem to be solved by the invention] Since most of the materials of the cover are resin molded, the thickness of the protrusions is larger than that of the parts other than the protrusions, so shrinkage is caused by the temperature difference during cooling. often occurs.

In addition, the cover is fixed in four places: the front and rear protrusions, recesses, and grooves, and when the cover is attached to the stay, the cover is elastically pushed apart, making it impossible to increase the amount of protrusion of the claws. There are challenges.

As a result, the fitting strength decreases due to resin deformation at high temperatures, resulting in problems such as play due to misalignment between the stay and the cover.

Furthermore, since the cover has a large number of claws, the workability during installation is poor, and it is difficult to assemble the cover by simply pushing it in by hand.

[Means for Solving the Problems] The present invention provides an engagement groove at the base of the pivot protruding in front of the stay of the inner mirror, a groove at the parting line, and a recess on the side wall of the rear stay. On the other hand, this is an inner mirror cover mounting structure in which a protrusion that fits into the engagement groove is provided at the tip of the cover, and a protrusion that engages with the recess is provided on the inner wall at the rear of the cover.

[Operation] The protrusion at the tip of the cover is inserted into the engagement groove at the base of the pivot to engage the cover with the pivot.

In other words, the tip of the convex portion of the cover abuts the engagement groove, and the cover is reliably and naturally fitted into the concave groove.

Then, when the cover is pressed against the stay side centering on the above-mentioned engaging part, the resin of the cover is elastically deformed, climbs over the protruding part, and at the same time the recess at the rear of the stay and the convex part on the inner wall at the rear of the cover engage. The concave grooves and protrusions provided in the parting line portions of the stay and the cover engage with each other, and the cover is securely and easily fixed to the stay.

Moreover, the installation work of the cover is as simple as aiming at the base of the pivot, inserting the tip of the cover there, and then pressing it against the stay.
Anyone can do it easily.

[Embodiment] Fig. 1 is a perspective view showing an embodiment of the present invention, showing a state in which the stay 1 and cover 2 of the mirror M are separated, and a state in which they are attached is as shown in Fig. 2. .

The present invention has a V-shaped concave groove 4 on the left and right parting line 3 of the stay 1 (the right part of the border between the stay 1 and the cover 2), and an engagement groove 5 on the base of the pivot P. is bored in a roughly semicircular shape.

Further, at the rear of the stay 1, a recess 6 similar to that of the conventional example is provided.

On the other hand, the cover 2 is a resin molded product similar to the conventional example and has elasticity.

This cover 2 has a space that follows the shape of the stay 1 so that it can be integrated with the stay 1, and has an outer wall 7 around its periphery.

In addition, the cover 2 is provided with a semicircular convex portion 8 that fits into the engagement groove 5 on the outer wall of the distal end thereof, as shown in FIG.

Furthermore, a protruding strip 9 is provided on the edge of the outer wall 7 to fit into the groove 4 .

Further, a protrusion 10 that engages with a recess 6 provided in the stay 1 is provided on the rear outer surface of the outer wall 7.

To connect the stay 1 and the cover 2, the convex portion 8 is inserted into the engagement groove 5 as shown in FIG. 4, and then the rear of the cover 2 is pressed against the stay 1.

As a result, the protrusion 10 of the stay 1 is connected to the cover 2.
The outer wall 7 is deformed against elasticity, and when the outer wall 7 gets over the protrusion 10, it returns to its original state due to the restoring force, and the protrusion 10 and the recess 6 engage with each other.

Note that during this work, the base of the pivot (engaging groove 5) is targeted to make it easier to hook the cover 2.

That is, FIG. 5 shows a sectional view illustrating the engagement state between the engagement groove 5 and the convex portion 8, and the engagement groove 5 is
As shown in the figure, the space with the opening side larger and the closed side narrower continues in a U-shape, while the convex part 8 protrudes semicircularly with only that part having a step. .

Therefore, after the tip of the cover 2 (convex portion 8) is always pressed against and engaged with the engagement groove 4 at the base of the pivot P, the stay 1 is slightly pushed down as shown in FIG.
When tilted to the side, the protrusions 9 will naturally fit into the grooves 4 provided at the parting line.

Since the stay 1 and cover 2 are positioned naturally by the above operation, simply by pressing the cover 2 against the stay 1 side, the V-shaped groove 4 and the protrusion 8 are engaged as shown in FIG. At the same time, the protrusion 10 engages with the rear recess 6, and the cover 2 is naturally coupled to the stay 1.

Although illustration is omitted, instead of the groove 4 at the parting line 3, spherical grooves may be bored at appropriate intervals, and spherical protrusions 5 corresponding to the grooves 4 may be provided protrudingly. good.

[Effects of the invention] The mounting structure of the invention reduces the number of protrusions on the cover from four in the past to two, thereby preventing sink marks during molding and achieving a beautiful appearance.

In addition, the cover 2 can now be attached to the stay 1 with a single action, which not only greatly improves work efficiency, but also allows the groove provided at the parting line to engage with the protrusion even after installation. The misalignment has been completely eliminated.

[Brief explanation of the drawing]

Fig. 1 is an exploded explanatory diagram showing one embodiment of the present invention, Fig. 2 is a perspective view after the same is assembled, Fig. 3 is a drawing showing only the front of the above cover, and Fig. 4 is a diagram of the cover and stay. An explanatory diagram showing the assembly process, Fig. 5 is an explanatory diagram showing a cross-section of the engagement state of the base of the stay, and Fig. 6 is an explanatory diagram showing the engagement state of the parting line part from A-A.
FIG. 7 is an exploded perspective view of the conventional example; FIG. 8 is a cross-sectional view of the above-mentioned combined state taken along line B-B; and FIG. 9 is a cross-sectional view of the same combined state taken along line C-- It is a sectional view cut along -C. 1... Stay, 2... Cover, 3... Parting line,
4... Concave groove, 5... Engagement groove, 6... Recess, 7...
Outer wall, 8...Protrusion, 9...Protrusion, 10...Protrusion, P...Pivot, M...Mirror.

Claims (1)

[Scope of utility model registration request] An engagement groove is provided at the base of the pivot protruding in front of the stay of the inner mirror, a groove is provided at the parting line, and a recess is provided on the side wall of the rear stay.
On the other hand, a cover mounting structure for an inner mirror, characterized in that a protrusion that fits into the engagement groove is provided at the tip of the cover, and a protrusion that engages with the recess is provided on the inner wall at the rear of the cover.