JPS607246Y2 - Lever and knob fitting structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a fitting structure between a lever and a knob.

In particular, the present invention relates to a fitting structure suitable for fitting a lever and a knob of a knob-operated door mirror for a vehicle.

As shown in Fig. 1, the knob-operated door mirror for a vehicle is operated by moving a knob b fitted to a lever a.
This is to move the mirror C which is linked to the mirror C.

In this case, when attaching the mirror body to the vehicle body, a gasket d must be installed on the lever a between the knob b and the side mirror body, as shown in Fig. 2. If it is fixed in advance with adhesive or the like, there is a problem in that it is difficult to insert the packing d.

For this reason, the fitting of the knob b to the lever a is normally performed after the side mirror body is attached to the vehicle body.

However, if knob b is fitted to lever a after it is installed on the vehicle body, the fitting work of knob b must be done inside the vehicle body or in a similar location, resulting in poor workability.
It must be possible to perform the fitting operation easily.

For this reason, the conventional fitting of the knob b to the lever a was fixed using a screw e, as shown in FIGS. 3 and 4.

However, when using the screw e, it is necessary to provide a flat surface a' on the lever a for thread cutting and positioning, and it is also necessary to make the lever a and the rib b somewhat thicker in order to tighten the screw. There is also.

When screws are used in this way, there are disadvantages such as the need to use thick material and the screws being visible from the outside and having poor shape.

An object of the present invention is to provide a lever-knob fitting structure that allows the above-mentioned fitting operation to be easily performed and allows the use of a knob with a good appearance and a thin lever.

An embodiment of the present invention will be described below with reference to FIGS. 5 to 12.

As shown in FIGS. 5 and 6, the lever 1 is a metal bar, and has a flange 11 at the tip that fits into the knob, and the flange has three cutouts 12a, 12b, 12
c are provided at approximately equal intervals.

The cutout portions 12a, 12b, and 12c have a depth that completely cuts out the flange 11.

As shown in FIGS. 4 to 9, the knob 2 is made of synthetic resin, has a cylindrical shape or a similar shape, and has a bag-shaped fitting hole 21 that is open from one plane surface.

This fitting hole 21 has a size that allows the flange 11 of the lever 1 to be inserted, but the cutout portions 12a, 1
Projections 22 at three locations at intervals corresponding to the intervals of 2b and 12c.
a, 22 b, and 22 c are provided continuously from the opening of the hole 21 to the bottom surface.

These protrusions 22a, 22b, and 22c are the cutout portions 12a.
, 12b, and 12c protrude by approximately the same depth as the notches.

With the above structure, the lever 1 is inserted into the fitting hole 21 of the knob 2 from the flange 11 side.
Since there are 22by 22c, lever 1 is flange 1
The cutout portions 12a, 12b, 12C of 1 are the protrusions 22a,
It can be inserted only if the position matches 22b and 22c.

FIG. 10 shows this state viewed from the opening side of the fitting hole 21.

In this state, the lever 1 is only fitted into the fitting hole 21 and is not fixed.

Therefore, either the lever 1 or the knob 2 is fixed, and the other is rotated to the left or right.

This rotational force is caused by the flange 11 being exposed to the protrusions 22a and 22b.
, 22 c innermost notch 12ay 12b, 1
2c to the extent that the part that was stuck could be destroyed.

Due to this destruction, the remaining parts of the protrusions 22at 22bt 22C and the flange 1 in the part that is not the cutout part
The remaining protrusion portion and flange 1 that were destroyed due to engagement with 1
1 are brought into pressure contact, and the lever 1 and knob 2 are fixed.

This fixed state is shown in FIGS. 11 and 12.

This fixed state is maintained unless a force stronger than the force applied when breaking the protrusions 22av, 22by, 22c is applied, so that it is sufficiently suitable for practical use.

As is clear from the above examples, according to the present invention, there is no need to use anything other than the lever and knob, there is no need to use thick material, and the knob can be used without any unevenness on the outside. A fitting structure can be obtained.

Furthermore, the fitting operation is very simple, as all that is required is to apply force and rotate after fitting.

In addition, in the example, the lever and knob were used to fit together without using anything, and as mentioned above, this alone provides sufficient strength for practical use, but if adhesive is also used, the fit will be even stronger. become.

In this case, if adhesive is used at the tip of the lever, the fitting hole will have sufficient depth so that the adhesive will not protrude.

Furthermore, although there are three flange cutouts on the lever and three fitting protrusions on the knob, it goes without saying that other locations may be used.

Furthermore, although the case of a knob-operated door mirror for a vehicle has been described above, it goes without saying that the present invention can be applied to other lever-knob fitting structures.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a knob-operated door mirror, FIG. 2 is an explanatory diagram of its installed state, and FIGS. 3 and 4 are sectional views showing a conventional lever-knob fitting structure. 5 to 12 show an embodiment of the present invention, FIG. 5 is a perspective view of the lever, FIG. 6 is an end view of the lever, FIG. 7 is a perspective view of the knob, and FIG. 8 is a perspective view of the knob. An end view, FIG. 9 is a sectional view taken along the line II in FIG. 8, FIG. 10 is an end view of the knob with the lever inserted, FIG. 11 is an explanatory view of the lever in a rotated state, and FIG. 12 is a sectional view taken along the line ■-■ in FIG. 11. 1...Lever 11-------Flange, 1
2a, 12b, 12C... cutout, 2...
...knob, 21...fitting hole, 22a, 22b,
22c...Protrusion.

Claims (1)

[Scope of utility model registration request] In a fitting structure in which a lever and a knob are fitted, the lever is made of metal and has a flange having a plurality of notches at its tip, and the knob is made of synthetic resin and the lever can be inserted from the flange side. The fitting hole is provided with protrusions continuous from the opening to the bottom surface at intervals corresponding to the 7-flange arrow-cut portions of the lever, and After fitting the lever into the fitting hole by matching the protrusion of the knob with the protrusion of the knob, the lever or knob is rotated to destroy the protrusion of the knob by the flange, and the remaining part of the destroyed protrusion and the flange are A lever-knob fitting structure characterized in that the lever and knob are fixed by being engaged with each other.