JP2014201117A - Component mating part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress generation of allophone (creak sound) on a mating part of resin components.SOLUTION: A fitting component 12 is fitted to a fitted component 11 via a mating part 3. The mating part 3 comprises: a fitting recess 13; a fitting salient 14; and a projection 15 for press-fit. The projection 15 for press-fit has a plane pressure rise shape part 21 for rising plane pressure on an apex contacting to the fitting recess 13 or the fitting salient 14. The plane pressure rise shape part 21 is formed into a taper shape part which can contact to the fitting recess 13 or the fitting salient 14 by line contact or point contact.

Description

  The present invention relates to a component matching portion structure that can suppress the generation of abnormal noise (squeak noise) at a matching portion such as a resin component.

  Vehicles such as automobiles are provided with various interior parts such as interior panels in the vehicle interior.

  These interior parts have a part alignment part for attaching to other interior parts so that the surfaces of the interior parts are continuous with each other and the gap between the alignment lines formed between the surfaces is reduced. (For example, refer to Patent Document 1).

  For example, as shown in FIG. 12 and FIG. 13, such a component matching portion a includes a fitting recess d that is provided on one edge of the mounted component b and the mounting component c and is recessed toward the back surface side. , Provided on one of the fitting convex part e, which can be inserted and fitted into the fitting concave part d, and the fitting concave part d and the fitting convex part e, between the two (ie , A press-fitting protrusion for eliminating (or crushing) a gap in a surface direction (a surface direction of the mounted part b or the mounting part c) by being press-fitted into the fitting concave part d and the fitting convex part e). and the like provided with f.

  The top part of the press-fitting protrusion f is a flat surface.

JP 09-257015 A

  However, the above-described component aligning portion a may have a problem that abnormal noise such as a squeaking noise is generated while the vehicle is running.

  Accordingly, an object of the present invention is to make it possible to reduce or prevent the generation of abnormal noise in view of the above situation.

In order to solve the above problems, the present invention provides:
Attaching the mounting part to the part to be mounted through the mating part so that the surfaces of each other are continuous and the gap of the mating line formed between the surfaces of each other is reduced,
The mating part is
A fitting recess that is provided on one edge of the mounted part and the mounting part and that is recessed toward the back surface;
A fitting convex portion provided on the other edge portion, which can be inserted and fitted into the fitting concave portion;
In the component fitting structure provided with at least one of the fitting concave portion and the fitting convex portion, and a press-fitting protrusion for eliminating a gap in the surface direction by being press-fitted between the two,
The press-fitting protrusion has a surface pressure increasing shape portion for increasing the surface pressure at the top contacting the fitting recess or the fitting protrusion.
The surface pressure increasing shape portion is a tapered shape portion capable of making line contact or point contact with the fitting concave portion or the fitting convex portion.

According to the present invention, the following effects can be obtained by the above-described configuration.
In other words, the contact pressure of the press-fitting protrusion with respect to the fitting recess or fitting protrusion is increased by the surface pressure increasing shape provided on the top of the pressing protrusion that contacts the fitting recess or fitting protrusion. Therefore, rubbing between the press-fitting protrusion and the fitting recess or the fitting protrusion is suppressed, so that the generation of abnormal noise (squeaking noise) at the mating portion can be prevented. .
In addition, the surface pressure increasing shape portion is a tapered shape portion, and by making line contact or point contact with the fitting concave portion or the fitting convex portion, the surface pressure is reliably increased, and abnormal noise is generated at the contact portion between the two. It can be effectively suppressed. In addition, by making the surface pressure increasing shape portion a tapered shape portion, the frictional resistance during press-fitting between the surface pressure increasing shape portion and the fitting concave portion or the fitting convex portion is reduced, so that it is attached to the mounted part. The mounting workability of parts can be improved.

1 is an overall perspective view of an instrument panel as an interior part installed in a vehicle compartment of a vehicle according to an embodiment of the present invention. FIG. 3 is a partially enlarged perspective view of FIG. 2. It is a top view of the switch cover panel (part to be attached) as an interior part. FIG. 4 is a partially enlarged perspective view of the switch cover panel of FIG. 3. It is a top view of the finisher panel (attachment part) as an interior part. FIG. 6 is a partially enlarged perspective view of the finisher panel of FIG. 5 as viewed from the back side. It is sectional drawing along the AA line of FIG. 2 which shows the components alignment part structure of this Example. It is sectional drawing similar to FIG. 7 concerning a modification. It is sectional drawing along the BB line of FIG. 7 (or FIG. 8). FIG. 10 is a cross-sectional view taken along line BB in FIG. 7 (or FIG. 8) according to the modification of FIG. 9. FIG. 10 is a cross-sectional view taken along line BB in FIG. 7 (or FIG. 8) according to another modification of FIG. 9. It is sectional drawing of the components matching part structure concerning a prior art example. It is sectional drawing in the position of CC line of FIG.

Hereinafter, the present embodiment and examples embodying the present embodiment will be described in detail with reference to the drawings.
FIGS. 1-11 shows the Example of this embodiment, and its modification.

<Configuration> The configuration will be described below.
Vehicles such as automobiles are provided with various interior parts such as interior panels in the vehicle interior.

  For example, as shown in FIG. 1 (see FIG. 2), the above-described interior part 1 is attached to the instrument panel 1a installed in the front part of the passenger compartment or the center part in the vehicle width direction of the instrument panel 1a. Cover panel 1b (refer to FIGS. 3 and 4 for details), finisher panel 1c (refer to FIGS. 5 and 6 for details) attached to the passenger seat side portion of instrument panel 1a, and the like. .

  Then, as shown in FIG. 2, these interior parts 1 have a smaller gap between the mating lines 2 formed between the surfaces of the other interior parts 1 so that the surfaces of the interior parts 1 are continuous with each other. There is an apparatus that has a mating portion 3 (parts mating portion, see FIG. 7) for continuous attachment.

  For example, as shown in FIG. 7 (or FIG. 8), the mating portion 3 has a fitting recess 13 that is provided on one edge of the mounted component 11 and the mounting component 12 and is recessed toward the back surface side. And between the two provided on at least one of the fitting convex portion 14 provided on the other edge portion, which can be inserted and fitted into the fitting concave portion 13, and the fitting concave portion 13 and the fitting convex portion 14 ( That is, a gap in the surface direction (the surface direction of the mounted part 11 or the mounting part 12, in this case, the left-right direction in the figure) is formed by press-fitting between the fitting concave part 13 and the fitting convex part 14). There are those provided with a press-fitting projection 15 for eliminating (or crushing).

  Here, the above-described “matching portion 3” is literally a connecting portion provided for connecting (adjacently installing) the interior parts 1 to each other. It is considered that the occurrence of a creaking sound at the mating portion 3 is generated especially by rubbing between hard resins. In this case, the mating portion 3 is between the cover panel 1b and the finisher panel 1c, but between the instrument panel 1a and the cover panel 1b, between the instrument panel 1a and the finisher panel 1c, or the like. There may be.

  The above-mentioned “surface is continuous” means that the interior parts 1 provided continuously are designed continuously. For example, it is assumed that the interior parts 1 provided in a row are connected to be flush with each other and are continuous so as to have a required uneven surface.

  The above-mentioned “matching line 2” is a line that can be formed at the joint between the interior parts 1 that are matched by the matching portion 3.

  The above-described “attached part 11” is literally a part that becomes a base for attachment to the other interior part 1 in the interior part 1. Usually, it often refers to a component that has been previously installed or a larger component. The mounted part 11 is made of resin or the like. In this case, the cover panel 1b described above is used. The cover panel 1b is, for example, a decorative panel that has a frame shape and covers the periphery of the display device of the car navigation system. However, the mounted part 11 is not limited to the cover panel 1b.

  The above-mentioned “attachment part 12” is literally another interior part 1 attached to the attached part 11 described above. Usually, it refers to a component that will be installed later or a smaller component. The attachment component 12 is made of resin or the like. In this case, the finisher panel 1c is used. The finisher panel 1c is a decorative panel having a wood grain or the like. However, the attachment component 12 is not limited to the finisher panel 1c.

  The above-mentioned “edge” refers to the entire peripheral part of the mounted part 11 or the mounting part 12 or a part thereof. In this case, it is a part of one side. The edge includes the vicinity of the edge.

  The above-mentioned “back surface side” literally refers to the surface opposite to the surface of the mounted component 11 or the mounting component 12, that is, the surface that does not appear on the surface.

  The above-described “fitting recess 13” is literally a fitting portion having a concave shape. The fitting concave portion 13 is a concave groove portion that is integrally recessed from the peripheral portion of the mounted component 11 or the mounting component 12 or the vicinity thereof toward the back surface side. The fitting recess 13 has a U-shaped or U-shaped cross section having both sides and a bottom. The groove width of the fitting recess 13 is formed to be wider than the thickness of the fitting protrusion 14. In general, the fitting recess 13 is often provided on the mounted component 11 side.

  The above-mentioned “fitting convex portion 14” is literally a convex fitting portion. The fitting convex portion 14 is a flange portion or the like integrally projecting from the peripheral portion of the mounted component 11 or the mounting component 12 or the vicinity thereof (position matching the fitting concave portion 13) toward the back surface side. The The fitting convex portion 14 is bent from the surface of the mounted component 11 or the mounting component 12 in an L shape or the like. This fitting convex part 14 is formed in the substantially same thickness as the surface of the to-be-attached component 11 or the attachment component 12. FIG. In general, the fitting convex portion 14 is often provided on the attachment component 12 side.

  The above-mentioned “press-fit protrusion 15” is a positioning rib having substantially the same height as the gap in the surface direction between the fitting concave portion 13 and the fitting convex portion 14. A plurality of the press-fitting protrusions 15 are provided at predetermined intervals along the extending direction of the mating line 2 with respect to the fitting recess 13 or the fitting protrusion 14. Note that the press-fitting protrusion 15 may be provided on either the fitting recess 13 or the fitting protrusion 14 as shown in FIGS. Alternatively, the press-fitting protrusion 15 may be provided on both the fitting recess 13 and the fitting protrusion 14. In addition, when the material and characteristic of resin which comprise the to-be-attached component 11 and the attachment component 12 differ, it is preferable to provide the press-fit projection part 15 in the side of hard resin. As shown in FIG. 6, an introduction taper portion 15 a or the like can be provided on the distal end side in the fitting direction (insertion direction) of the press-fitting protrusion 15. Also, a wedge surface shape that is extremely loose (at least looser than the inclination of the introduction taper portion 15a) with respect to the top portion of the press-fitting projection portion 15 other than the introduction taper portion 15a to enhance the press-fit effect as necessary An inclined portion 15b or the like may be provided.

  In addition to the basic configuration as described above, the present embodiment has the following configuration.

(Configuration 1a)
As shown in FIG. 9 or FIG. 10, the surface pressure increasing shape portion 21 for increasing the surface pressure at the top where the press-fitting protrusion 15 contacts the fitting concave portion 13 or the fitting convex portion 14. It is supposed to have.

(Supplementary explanation 1a)
Here, the above-described “surface pressure increasing shape portion 21” includes a wide range of shapes having a shape capable of increasing the surface pressure. A specific configuration of the surface pressure increasing shape portion 21 will be described later.

(Configuration 1b)
The surface pressure increasing shape portion 21 is a tapered shape portion that can be brought into line contact or point contact with the fitting concave portion 13 or the fitting convex portion 14.

(Supplementary explanation 1b)
Here, the above-mentioned “line contact” literally contacts with a line. For example, even if it has a semicircular cross section along the extending direction of the press-fitting protrusion 15 as shown in FIG. 9, it extends along the extending direction of the press-fitting protrusion 15 as shown in FIG. And may have a triangular cross section.

  The above-mentioned “point contact is possible” literally touches at a point. Although not particularly illustrated, for example, a large number of fine hemispherical protrusions, triangular pyramidal protrusions, and the like may be connected along the extending direction of the press-fitting protrusions 15.

  The “tapered portion” described above is provided at the top of the surface pressure increasing shape portion 21 (inclined portion 15b) such that the thickness of the surface pressure increasing shape portion 21 is reduced. The

(Configuration 2)
As shown in FIG. 11, the fitting concave portion 13 or the fitting convex portion 14 sandwiches the top portion (or the vicinity thereof) of the press-fitting projection 15 from both sides of the portion where the press-fitting projection 15 contacts. It is assumed that the holding portion 25 is provided.

(Supplementary explanation 2)
Here, “hold” means to support the top portion (or the vicinity thereof) of the press-fitting projection 15 so as to be sandwiched from both sides. Therefore, the clamping part 25 is provided in a pair.

The above-described “clamping portion 25” has a length that does not reach the fitting concave portion 13 or the fitting convex portion 14 provided with the press-fitting projection 15. The sandwiching portion 25 may have a tapered portion that can be brought into line contact or point contact with the top of the press-fitting projection 15. The tapered portion can be the same as the above-described surface pressure increasing shape portion 21.
Furthermore, each clamping part 25 has a positioning function with respect to the fitting recessed part 13 and the fitting convex part 14 by providing in predetermined positions, such as the width | variety center part of the fitting recessed part 13 or the fitting convex part 14, etc. You can do that.

<Operation> The operation of this embodiment will be described below.
The attachment component 12 is connected to the attachment component 11 through the mating portion 3 so that the surfaces of the attachment component 12 are continuous and the gap of the alignment line 2 formed between the surfaces is small.

  At this time, as shown in FIG. 7 (or FIG. 8), the fitting recess 13 provided on one edge of the mounted part 11 and the mounting part 12 is provided on the other edge. The fitting projection 14 protruding to the back surface side is fitted, and the press-fitting projection 15 is press-fitted between the fitting recess 13 and the fitting projection 14, so that Try to eliminate the gap. Thereby, alignment with the above-mentioned to-be-attached component 11 and the attachment component 12 is performed. FIG. 7 (or FIG. 8) shows a state immediately before being completely press-fitted.

<Effect> According to this embodiment, the following effects can be obtained.
(Effect 1a)
The press-fitting protrusion 15 is brought into contact with the fitting concave portion 13 or the fitting convex portion 14 by the surface pressure increasing shape portion 21 provided on the top portion of the pressing fitting projection 15 in contact with the fitting concave portion 13 or the fitting convex portion 14. Therefore, the friction between the press-fitting projection 15 and the fitting concave portion 13 or the fitting convex portion 14 is suppressed, so that an abnormal noise (squeak noise) at the mating portion 3 is suppressed. ) Can be prevented.

  On the other hand, as shown in the conventional example of FIG. 12, when the surface pressure increasing shape portion 21 is not provided at the tip of the press-fitting projection f, the press-fitting projection Since the contact surface pressure of the portion f with respect to the fitting recess d or the fitting projection e is insufficient, the fitting portion is caused by rubbing between the press-fitting projection f and the fitting recess d or the fitting projection e. An abnormal noise (squeak noise) is likely to occur at a.

(Effect 1b)
The surface pressure increasing shape portion 21 is formed as a tapered shape portion, and line contact or point contact is made with the fitting concave portion 13 or the fitting convex portion 14 to thereby reliably increase the surface pressure and cause abnormal noise at the contact portion between the two. Generation | occurrence | production can be suppressed effectively.
Further, by making the surface pressure increasing shape portion 21 a tapered shape portion, the frictional resistance during press-fitting between the surface pressure increasing shape portion 21 and the fitting concave portion 13 or the fitting convex portion 14 is reduced. The attachment workability of the attachment part 12 with respect to the attachment part 11 can be improved.

(Effect 2)
The clamping part 25 provided in the fitting concave part 13 or the fitting convex part 14 clamps the tip part of the press-fitting projection part 15 from both sides, thereby positioning the mating part 3 in the direction along the mating line 2. Even when the surface pressure increasing shape portion 21 of the press-fitting protrusion 15 gradually wears by repeatedly attaching and detaching the attachment component 12 to and from the attachment component 11, The sandwiching portion 25 can keep the abnormal noise prevention function and the positioning function for a long time.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

DESCRIPTION OF SYMBOLS 1 Interior component 2 Alignment line 3 Alignment part 11 Mounted part 12 Attachment part 13 Fitting recessed part 14 Fitting convex part 15 Pressing projection part 21 Surface pressure rise shape part 25 Clamping part

Claims (2)

Attaching the mounting part to the part to be mounted through the mating part so that the surfaces of each other are continuous and the gap of the mating line formed between the surfaces of each other is reduced,
The mating part is
A fitting recess that is provided on one edge of the mounted part and the mounting part and that is recessed toward the back surface;
A fitting convex portion provided on the other edge portion, which can be inserted and fitted into the fitting concave portion;
In the component fitting structure provided with at least one of the fitting concave portion and the fitting convex portion, and a press-fitting protrusion for eliminating a gap in the surface direction by being press-fitted between the two,
The press-fitting protrusion has a surface pressure increasing shape portion for increasing the surface pressure at the top contacting the fitting recess or the fitting protrusion.
The component matching portion structure characterized in that the surface pressure increasing shape portion is a tapered shape portion that can be brought into line contact or point contact with the fitting concave portion or the fitting convex portion.   2. The component according to claim 1, wherein the fitting concave portion or the fitting convex portion has a holding portion that holds the top portion of the press-fitting projection portion from both sides on a side where the press-fitting projection portion contacts. Matching part structure.