JP7245137B2 - roof mall - Google Patents

Description

The present invention relates to a roof molding.

Conventionally, as shown in FIG. 7 and FIG. 8 showing the BB cross section thereof, in the roof R of the vehicle body, the roof molding is installed in the roof molding mounting groove R3 formed at the joint of the roof panel R1 and the side outer panel R2 from above. 60 is installed to hide the seam between the roof panel R1 and the side outer panel R2 (Patent Document 1).

As shown in FIGS. 8 and 9, the roof molding 60 is obtained by cutting an extruded body integrally formed with a head 61 and legs 63 extending from the back surface (lower surface) of the head 61 to a predetermined length. The leg part 63 is inserted into the roof molding mounting groove R3, and the roof molding mounting groove R3 is closed with the head part 61. - 特許庁

A head portion 61 and a leg portion 63 of the roof molding 60 are made of general-purpose resin for extrusion molding. In some cases, the head 61 is formed by laminating a surface layer material 65 made of a high-hardness resin having high weather resistance and scratch resistance. A metal core material 66 is embedded in the leg portion 63 mainly to suppress expansion and contraction due to temperature change.

Fixing of the roof molding 60 to the roof molding mounting groove R3 is performed by clips 70 provided on the bottom of the roof molding mounting groove R3 at predetermined intervals and fitting portions 68 formed on the leg portions 63 of the roof molding 60 at predetermined intervals. It is done by mating with
The clip 70 is made of metal, and side walls 72, 72 are formed upward from both sides of a bottom wall 71, and inward engaging claws 73, 73 are formed at the upper ends of the side walls 72, 72. .

On the other hand, the fitting portion 68 of the roof molding 60 is formed by notching the lower portion of the leg portion 63 at predetermined intervals in the longitudinal direction, and injection-molding the notched portions with a highly abrasion-resistant, high-hardness resin. . The lower portion of the fitting portion 68 is formed into engaging protrusions 69, 69 projecting in the width direction of the roof molding 60, and is inserted between the side wall portions 72, 72 of the clip 70 to form the upper ends of the side wall portions 72, 72. , 73 and the bottom wall portion 71.

JP 2016-130088 A

A roof molding with a fitting part injection-molded in the cutout part of the leg can be cut out in the extruded roof molding, or set the cutout part in an injection mold to make the fitting part. There are problems such as the problem that the number of work steps such as the work of injection molding increases, and the problem that the cost of molds increases.

In addition, in order to eliminate the need for injection molding of the fitting portion, if the legs of the roof molding made of general-purpose resin are extrusion-molded in the shape of the fitting portion, the general-purpose resin does not have a high hardness and does not have sufficient wear resistance. Therefore, when the leg is fitted to the clip, the surface of the leg is scraped by the engaging claw of the clip, and loosening of the fitting occurs after fitting, causing the roof molding to rattle when the vehicle is running. Abnormal noise may occur.

On the other hand, if the entire legs of the roof molding are extruded into the shape of the fitting part with a highly wear-resistant, high-hardness resin, the roof molding will not flex easily, and the height in the front and rear of the vehicle will be low, and the height in the center will be low. When the roof molding is attached to the roof molding mounting groove formed on the roof with a highly curved roof, both ends of the roof molding may rise from the roof molding mounting groove and may not fit into the clips in the roof molding mounting groove. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive roof molding which can be attached to a clip in a roof molding attachment groove without looseness.

According to the invention of claim 1, the clip has a bottom wall portion, side wall portions formed on both sides in the width direction of the bottom wall portion facing upward, and engaging claws formed on the upper portions of the side wall portions facing inward. A roof molding having a leg fitted from above into a roof molding mounting groove provided with the clip and fitted between the engaging claw of the clip and the bottom wall, the head and the rear surface of the head extending from the head. The lower portion of the leg portion is a fitting portion inserted between the engaging claws of the clip and fitted between the engaging claw and the bottom wall portion. wherein the upper portion of the fitting portion protrudes to both sides in the width direction of the leg portion and has a width larger than the interval between the engaging claws of the clip, and the width decreases from the upper portion to the lower portion. and a wear-preventing material laminated on the surface of the fitting-part main body, wherein the wear-preventing material has higher hardness than the fitting-part main body.

The invention according to claim 2 is characterized in that, in claim 1, a surface layer material is laminated on the surface of the head portion, and the surface layer material and the wear prevention material have higher hardness than the other part of the roof molding. do.

The invention of claim 3 is the invention according to claim 2, wherein the resin forming the surface layer material and the wear-resistant material and the resin forming the other part of the roof molding are made of two kinds of resins having different hardnesses. It is characterized by

The invention of claim 4 is characterized in that, in any one of claims 1 to 3, the wear-resistant material has a Shore A hardness of 100 or more.

According to the present invention, the roof molding is an extruded body integrally provided with the head and the leg extending from the back surface of the head, and the lower part of the leg is the engaging claw of the clip of the roof molding mounting groove. A fitting portion inserted between and fitted between the engaging claw of the clip and the bottom wall portion of the clip, the fitting portion being composed of a fitting portion main body and a wear-resistant material laminated on the surface thereof, The wear-resistant material has a higher hardness than the main body of the fitting portion, and the fitting portion is extruded as part of the leg portion.

Therefore, it is not necessary to partially cut out the leg portion of the roof molding and injection-mold the fitting portion in the cut-out portion as in the conventional art. be able to.

In addition, since the fitting portion is composed of the fitting portion main body and a hard wear-resistant material laminated on the surface thereof, when the fitting portion of the roof molding is fitted to the clip, the engaging claw of the clip can be used. Even if the surface of the fitting portion is rubbed, since the surface of the fitting portion is composed of a wear-preventing material with high hardness, it is difficult to be scraped off, and the fitting to the clip can be performed without rattling. .

In addition, instead of forming the entire leg from highly rigid resin, a highly rigid wear-resistant material is layered only on the surface of the fitting portion, which is a part of the leg, so that the roof molding does not easily bend. It can be mounted in the roof molding mounting groove according to the curved surface shape of the roof of the vehicle, and the both ends of the roof molding can be prevented from rising from the roof molding groove.

1 is a perspective view showing the front side of a roof molding according to one embodiment of the present invention; FIG. FIG. 2 is a perspective view showing the back side of the roof molding of one embodiment of the present invention; FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1; 1 is a perspective view showing one embodiment of a clip; FIG. FIG. 4 is a cross-sectional view showing the fitting of the roof molding of the embodiment. FIG. 4 is a cross-sectional view showing a fitted state of the roof molding of one embodiment; 1 is a perspective view showing a portion of an automobile to which a conventional roof molding is attached; FIG. FIG. 9 is a cross-sectional view taken along the line BB of FIG. 8; FIG. 10 is a perspective view of a conventional roof molding;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. The roof molding 10 shown in FIGS. 1 to 3 is mounted in a roof molding mounting groove R3 as shown in FIGS. 5 and 6, and is fitted with a clip 40 fixed to the roof molding mounting groove R3. . Note that L indicates the length direction, and W indicates the width direction.

The clip 40 used in this embodiment is formed by punching or bending a metal plate, as shown in the perspective view of FIG. The clip 40 includes a bottom wall portion 41, side wall portions 43, 43 formed upward on both sides in the width direction of the bottom wall portion 41, and engaging claws 45 formed inwardly on the upper portions of the side wall portions 43, 43. , 45. The engaging claws 45, 45 are formed by bending the upper ends of the side wall portions 43, 43 inward and downward. The tips 45a, 45a of the engaging claws 45, 45 are positioned apart from the inner surfaces of the side walls 43, 43, and the distance between the tips 45a, 45a of the engaging claws 45 is variable by elastic deformation. The distance between the tips 45a, 45a of the engaging claws 45, 45 and the bottom wall portion 41 is set larger than the height (thickness) of the fitting portion 24 of the roof molding 10, which will be described later.

In addition, an upward spring piece 47 is cut and raised in the center portion between the side wall portions 43 , 43 of the bottom wall portion 41 . The spring piece 47 is fitted in a groove 30 on the bottom surface of a fitting portion main body 25 of the roof molding 10 to be described later, pushes up the fitting portion 24 , and pushes the fitting portion 24 of the roof molding 10 to the tips of the engaging claws 45 , 45 . It is pressed against 45a, 45a to prevent rattling of the roof molding 10. - 特許庁

The roof molding 10 is an extruded body that integrally includes a head portion 11 and leg portions 21 extending from the back surface (lower surface) of the head portion 11 .
The head 11 has a width capable of covering the roof molding mounting groove R3, and conceals the inside of the roof molding mounting groove R3 when the roof molding 10 is mounted in the roof molding mounting groove R3. The head 11 is made of an appropriate resin such as a polyolefin resin, but an olefin thermoplastic resin (TPO resin) having a Shore A hardness of about 90 is preferable.

In this embodiment, a surface layer material 15 is laminated on the surface (upper surface) of the head portion 11 . The surface layer material 15 is integrally formed with the head portion 11 by extrusion molding, and is provided mainly for surface protection of the head portion 11 . The surface layer material 15 is made of a highly rigid resin having higher weather resistance and scratch resistance than the head 11 . A preferred resin for the surface layer material 15 is an olefinic thermoplastic resin (TPO resin) having a Shore A hardness of 100 or more. Note that the surface layer material 15 may not be provided.

The leg portion 21 has a width that is narrower than the width of the head portion 11 and can be inserted into the roof molding mounting groove R3, and is formed along the length direction of the roof molding 11. As shown in FIG. In the illustrated example, a leg portion 21 is formed at a substantially central position in the width direction of the head portion 11 on the rear surface (lower surface) of the head portion 11 . A metallic core material 35 is embedded in the leg portion 21 mainly to suppress expansion and contraction due to temperature change.

A lower portion of the leg portion 21 serves as a fitting portion 24 which is inserted between the engaging claws 45 and 45 of the clip 40 and fitted between the engaging claws 45 and 45 and the bottom wall portion 41 .
The fitting portion 24 is composed of a fitting portion main body 25 and an antiwear material 31 laminated on the surface thereof.

The fitting portion main body 25 is extruded as part of the leg portion 21 . As shown in (5-1) of FIGS. 3 and 5, the fitting portion main body 25 has upper portions 26, 26 protruding to both sides in the width direction of the leg portion 21 to form the gap between the engaging claws 45, 45 of the clip 40. , narrowing from the top 26,26 to the bottom 28,28. In addition, in the fitting portion body 25 of the present embodiment, the width of the upper portions 26, 26 is the distance d between the tips 45a, 45a of the engaging claws 45, 45 of the clip 40 (shown in (5-1) in FIG. 5). ), and the lower ends of the lower portions 28, 28 are formed narrower than the interval d between the tips 45a, 45a of the engaging claws 45, 45. As shown in FIG. Further, the fitting portion main body 25 of this embodiment has a longitudinal groove 30 formed in the bottom surface thereof. The groove 30 is a portion into which the upper end of the spring piece 47 of the clip 40 is fitted when the fitting portion 24 is fitted to the clip 40 .

The leg portion 21 including the fitting portion main body 25 is integrally extruded with the head portion 11, and is made of an olefinic thermoplastic resin (TPO resin) having a Shore A hardness of about 90, like the head portion 11. preferably

The wear-preventing material 31 is extruded into a layer that covers the surface of the fitting portion main body 25, and prevents the fitting portion 24 from being scraped by the engaging claws 45, 45 when fitting the fitting portion 24 to the clip 40. It is provided to The wear-resistant material 31 is made of resin having a hardness higher than that of the fitting portion main body 25 . As a resin for forming the anti-wear material 31, an olefinic thermoplastic resin (TPO resin) having a Shore A hardness of 100 or more is mentioned. The thickness of the antiwear material 31 is preferably about 0.2 to 0.5 mm.

Further, the wear-resistant material 31 and the surface layer material 15 of the head 11 are made of the same resin with high hardness, and the leg 21 including the head 11 and the fitting portion main body 24 are made of the wear-resistant material 31 and the head 11. If the same resin having a hardness lower than that of the surface layer material 15 is used, the roof molding 10 can be extruded from two types of resin having different hardness, which facilitates management of the resins to be used and facilitates manufacturing. become easier.

In the roof molding 10, instead of forming the entire leg portion 21 from a highly rigid resin, a highly rigid wear-resistant material is laminated only on the surface of the fitting portion 24, which is a part of the leg portion 21. 10 can be prevented from becoming difficult to bend, and can be mounted in the roof molding mounting groove R3 according to the curved surface shape of the roof of the vehicle.
In addition, end caps may be provided by injection molding or the like on both ends of the roof molding 10 made of an extruded body in order to improve the appearance.

Attachment of the roof molding to the roof molding attachment groove R3 will be described with reference to FIGS. 5 and 6. As shown in (5-1) and (5-2) of FIG. , is pushed into the roof molding mounting groove R3 from above the roof molding mounting groove R3. At this time, the roof molding 10 is bent according to the curved shape of the roof of the vehicle, and the legs 21 are pushed into the roof molding mounting grooves R3.
Clips 40 are fixed to the bottom surface of the roof molding mounting groove R3 at predetermined intervals with an adhesive 49 such as double-sided adhesive tape.

The fitting portion 24 formed at the bottom of the leg portion 21 pushed into the roof molding mounting groove R3 is press-fitted between the engaging claws 45, 45 of the clip 40. As shown in FIG. At this time, the fitting portion 24 is formed such that the anti-abrasion material 31 on the surface of the fitting portion 24 contacts the engaging claws 45 and 45 and pushes the space between the engaging claws 45 and 45 apart, thereby pass through. During this time, the upper end of the spring piece 47 of the clip 40 is positioned in the groove 30 on the lower surface of the fitting portion 24 and applies an upward force to the fitting portion 24 .

When the fitting portion 24 of the roof molding 10 passes between the engaging claws 45 , 45 of the clip 40 while being in contact with the engaging claws 45 , 45 , the wear-preventing material 31 on the surface of the fitting portion 24 is applied to the clip 40 . It is rubbed by the engaging claws 45,45. However, since the anti-wear material 31 has a high hardness, it can be prevented from being scraped.

Further, when the leg portion 21 of the roof molding 10 is pushed into the roof molding mounting groove R3, the lower fitting portion 24 of the leg portion 21 passes between the engaging claws 45, 45 of the clip 40, and 2, it reaches between the tips 45a, 45a of the engaging claws 45, 45 of the clip 40 and the bottom wall portion 41. As shown in FIG. The fitting portion 24 of the roof molding 10 is pushed upward by the repulsion of the spring piece 47 of the clip 40 and pressed against the tips 45a, 45a of the engaging claws 45, 45 of the clip 40, causing the clip 40 to loose. Mating without sticking.

Further, the fitting portion 24 of the roof molding 10 mounted in the roof molding mounting groove R3 may be disengaged from the engaging claw 45 of the clip 40 due to vibration during running of the vehicle or expansion and contraction of the roof molding groove R3 due to changes in roof temperature. , 45, since the surface of the fitting portion 24 is composed of the wear-preventing material 31 with high hardness, the fitting portion 24 will not be scraped off and the roof molding will not be scraped. 10 rattling is not likely to occur.

As described above, according to the present invention, a roof molding having a fitting portion can be manufactured by extrusion molding, and a roof molding that is easy to manufacture and inexpensive can be obtained.

In addition, since the fitting portion is composed of the fitting portion main body and a hard wear-resistant material laminated on the surface thereof, when the fitting portion of the roof molding is fitted to the clip, the engaging claws of the clip fit together. Even if the surface of the part is rubbed, it is hard to be scraped off and can be fitted to the clip without looseness.

Furthermore, since the entire leg part of the roof molding is not made of high-hardness resin, it can be bent and can be installed in the roof molding mounting groove according to the curved surface shape of the roof of the vehicle. .

REFERENCE SIGNS LIST 10 Roof molding 11 Head 15 Surface layer material 21 Leg 24 Fitting portion 25 Fitting portion main body 31 Abrasion prevention material 40 Clip 41 Bottom wall portion 43 Side wall portion 45 Engaging claw 45a Tip of engaging claw R3 Roof molding mounting groove

Claims (4)

A roof molding mounting provided with a clip having a bottom wall portion, side wall portions formed upward on both sides in the width direction of the bottom wall portion, and engaging claws formed inward on the upper portion of the side wall portion. A roof molding having legs mounted in grooves from above and fitted between the engaging claws of the clip and the bottom wall,
An extruded body integrally comprising a head and the leg extending from the back surface of the head,
the lower portion of the leg constitutes a fitting portion that is inserted between the engaging claws of the clip and fits between the engaging claw and the bottom wall;
The fitting portion has an upper portion that protrudes to both sides in the width direction of the leg portion, has a width larger than the interval between the engaging claws of the clip, and has a width that narrows from the upper portion to the lower portion. It consists of a main body and an anti-wear material laminated on the surface of the main body of the fitting part,
The roof molding, wherein the wear-preventing material has a hardness higher than that of the fitting portion main body. A surface layer material is laminated on the surface of the head,
2. The roof molding according to claim 1, wherein said surface layer material and said wear-resistant material have higher hardness than other parts of said roof molding. 3. A resin according to claim 2, wherein the resin forming the surface layer material and the wear preventing material and the resin forming the other portion of the roof molding are formed of two types of resin having different hardnesses. roof mall. The roof molding according to any one of claims 1 to 3, wherein the wear-resistant material has a Shore A hardness of 100 or more.

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