JP2003314515A - Joint structure of interior component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure of each interior component of a long size synthetic resin compact, to control a gap between both components to a certain length at the time of initial installation, and to prevent the breakage of a joint section due to change of environment temperatures. <P>SOLUTION: Beside an opening 12 is set up at the lower part of the interior component 10 on one side, a boss 40 and a setting rib 41 are protruded to the back side of an interior component 20 on the other side to correspond to this opening 12. Thereby, the interior component 10, 20 are joined tightly and the gap d between both components is maintained to certain by making the edge of the setting rib 41 contact to a pair of rim of the opening 12 at least. Furthermore, the stress given to the boss 40 is reduced through the flexible deformation of the inclined setting rib 41 when elastic stress due to the change of the environment temperatures is given to the interior components 10, 20 by setting up the setting rib 41 as inclined with a specified angle to the elastic direction given to the interior components 10, 20. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mating structure for interior parts made of a long resin molding, and in particular, the initial mating gap at the mating part can be controlled to a constant level, and the appearance is excellent and the ambient temperature is excellent. The present invention relates to a mating structure for interior parts, which is capable of preventing the mating part from being broken even if an external force is applied to the mating part due to the fluctuation of the above, and which has improved durability.

[0002]

2. Description of the Related Art FIG. 10 shows a state in which a center pillar garnish upper 1 and a center pillar garnish lower 2 made of a long synthetic resin molded body mounted on the interior side of a center pillar panel (not shown) of a vehicle are attached. FIG. 3 is an external view of the center pillar garnish upper 1 with the roof trim 3 butted with the roof trim 3 and the center pillar garnish lower 2 with the floor trim 4 and the floor trim 4.

Further, in the relationship between the center pillar garnish upper 1, the center pillar garnish lower 2, and the roof trim 3 and floor trim 4 adjacent to them, the center pillar garnish upper is prevented from causing a gap between the parts. It is customary to tightly fix the space between the roof trim 1 and the roof trim 3, and also tightly attach the center pillar garnish lower 2 and the floor trim 4.

By the way, the center pillar garnish upper 1 and the center pillar garnish lower 2 made of a synthetic resin molded body with respect to a metal panel have a large linear expansion coefficient, and when the environmental temperature fluctuates, that is, in the high temperature in the summer, the longitudinal direction, That is, it tends to extend in the vertical direction and, on the contrary, tends to contract in the vertical direction when the temperature is low in winter.

In order to absorb the expansion and contraction strain of the center pillar garnish upper 1 and the center pillar garnish lower 2 which are thus formed of a long synthetic resin molding, the center pillar garnish upper 1 and the center pillar garnish lower 2 are provided. In some cases, the strain absorption structure shown in FIG.

That is, an opening 5 is formed in the lower edge flange 1a of the center pillar garnish upper 1, and a cylindrical boss 6 and a cross shape around the boss 6 are formed on the back surface of the center pillar garnish lower 2 so as to correspond thereto. The contact rib 7 is integrally formed, and as shown in FIG.
Since the contact ribs 7 formed around the inside of the opening 5 are accommodated in the opening 5 with a play in the vertical direction, the contact ribs 7 move in the vertical direction in the opening 5 to move the center pillar garnish upper 1 and the center pillar garnish. Lower 2
It is possible to absorb the expansion and contraction strain due to the fluctuation of the environmental temperature.

However, when the elastic strain absorbing structure shown in FIG. 11 is adopted, the center pillar garnish upper 1
When attaching the center pillar garnish lower 2 and the center pillar to the panel, the alignment gap between the two is shown (indicated by symbol d in FIG. 11).
Is difficult to maintain constant, and variations occur in the alignment gap d. When this alignment gap d is small, deformation occurs due to the interference of the garnishes 1 and 2 during high temperature heat cycle. On the contrary, when too much alignment gap d is taken, the garnishes 1 and 2 are removed during low temperature heat cycle. When contracted, the gap is very conspicuous and the appearance is greatly impaired, which is a drawback.

Therefore, recently, the upper edge of the center pillar garnish upper 1 and the roof trim 3 are fixed in close contact with each other, and the lower edge of the center pillar garnish lower 2 and the floor trim 4 are fixed in close contact with each other. In addition, as shown in FIGS. 12 and 13, an attempt has been made to tightly attach the mating portion of the center pillar garnish upper 1 and the center pillar garnish lower 2 as well.

That is, when the boss 6 projecting from the rear surface of the center pillar garnish lower 2 is accommodated in the opening 5 formed in the lower edge flange 1a of the center pillar garnish upper 1, it is formed around the boss 6. The structure is such that the contact ribs 7 are bonded to each other so as to be in close contact with the edge 5a of the opening 5.

[0010]

As described above, conventionally, when the parts made of the long synthetic resin molded body such as the center pillar garnish upper 1 and the center pillar garnish lower 2 are bonded to each other at the ambient temperature. When play is given to the joint part to absorb the expansion and contraction strain of parts due to fluctuation, it is difficult to manage the initial alignment gap between the two, so the joint part of the center pillar garnish upper 1 and the center pillar garnish lower 2 As shown in FIGS. 12 and 13, the contact ribs 7 are tightly attached so as to abut against each other.

Particularly, in winter, when the center pillar garnish upper 1 and the center pillar garnish lower 2 contract in the longitudinal direction, the center pillar garnish upper 1 is pulled toward the roof trim 3 side, and conversely, the center pillar garnish lower 2 is located on the floor side. Attracted to
At this time, the tensile load causes a problem that the boss 6 and the contact rib 7 are cracked or broken.

The present invention has been made in view of the above circumstances, and in the structure for fitting interior parts made of a long synthetic resin molded body, the initial alignment clearance of the joint parts of both parts can be constantly controlled, Excellent interior design can be easily achieved, and even if expansion and contraction force along the longitudinal direction is applied to the mating part due to environmental temperature fluctuations, cracks and breakage of bosses and contact ribs can be prevented, and interior parts with improved durability It is intended to provide a matching structure of.

[0013]

In order to achieve the above object, the present invention is directed to the above interior by joining two longitudinal end portions of two interior parts made of a long synthetic resin molding to each other in the longitudinal direction. In a mating structure of interior parts in which the other side edge of the part in the longitudinal direction is attached tightly to an adjacent part, a flange is extended to one side of the joint edge of the interior part, and an opening is formed in this flange. On the other hand, on the back surface on the other side, a boss housed in the opening and a plurality of plate-shaped contact ribs extending outward from the outer peripheral surface of the boss are integrally formed. Some of them are in contact with each other, the joint edges of the interior parts are tightly joined to each other, and the contact ribs are inclined at a predetermined angle with respect to the expansion / contraction direction of the interior parts.

Here, as the two interior parts made of long resin moldings which are joined to each other, a center pillar garnish upper and a center pillar garnish lower, or a roof side garnish and a rear pillar garnish can be considered.

An opening formed in a flange formed at the edge of the interior component on one side, and a boss and a contact rib fitted in the opening on the back surface of the interior component on the other side, Particularly, the contact ribs are formed as a plurality of plate-shaped ribs extending outward from the outer peripheral surface of the cylindrical boss, and particularly, the contact ribs are inclined along the longitudinal direction of the component. The feature is that it is set as follows.

Here, the shape of the opening is not limited to a square shape such as a square shape or a rectangular shape, or a circular shape, an oval shape, or the like, but a preferred embodiment is set to a square shape. It is preferable that the boss is inserted substantially in the center of the opening and the tips of the contact ribs integrated around the boss are abutted against the four corner portions of the opening. When the interior parts shrink in the longitudinal direction at low temperatures, the stress applied to the boss can be reduced by bending the contact ribs that are in contact with the corners near the end of the opening. When an external force is applied, the stress applied to the boss can be reduced by bending the contact rib that abuts the corner portion near the center of the opening.

In another embodiment, an inclined contact rib is brought into contact with a corner portion of the opening near the end, and no contact rib is applied to the remaining corner portion, and a contact rib extending in the length direction is applied to the side. Alternatively, an inclined contact rib may be applied to a corner portion near the center of the opening, and a contact rib extending from the boss in the longitudinal direction may be applied to a side of the opening near the end. That is, the contact ribs provided around the mounting boss can be set in a Y shape or an inverted Y shape.

Further, as another aspect of the present invention, by forming a slit in the boss in the axial direction and imparting flexibility to the boss itself, the expansion and contraction stress applied to the resin part due to the change in the environmental temperature is given. You may make it correspond to.

At this time, it is more effective to set a plate-shaped contact rib which is inclined with respect to the expansion / contraction direction of the component as the contact rib integrated with the slitted boss, but it is inclined in the expansion / contraction direction. It is also possible to set a cross-shaped rib that does not have a shape.

And, as is clear from the above configuration,
The interior structure mating structure according to the present invention has an end opposite to the joint part of the interior parts made of a long synthetic resin molding that are joined to each other, and is fixed tightly to the adjacent interior parts, and both parts The joining portion of is configured to fit and fix the boss and the contact rib formed on the other side in the opening on one side,
Since the three mating parts of the two interior parts are in a tight state, it is possible to easily manage the initial mating gap and maintain a good external appearance.

Further, in the mating structure according to the present invention, at least a part of the contact ribs inserted into the opening is fitted into the opening so as to be inclined along the direction of expansion and contraction, Or, since a slit is formed along the axial direction of the boss, due to changes in environmental temperature,
When an extension force and a contraction force along the longitudinal direction are applied to the interior parts, the tilted ribs are flexibly deformed to reduce the stress applied to the boss.

Further, when the boss is formed with a slit, the stress applied to the boss can be absorbed by the bending of the boss itself.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the fitting structure for interior parts according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an overall view showing an embodiment in which the mating structure according to the present invention is applied to a mating portion of a center pillar garnish upper and a center pillar garnish lower, and FIG. 2 is a mating of a center pillar garnish upper and a center pillar garnish lower. Explanatory drawing which shows 1st Embodiment of this invention applied to the part, FIG. 3 is sectional drawing which shows the junction part of the same center pillar garnish upper and center pillar garnish lower, FIG. 4 is opening of a center pillar garnish upper, and center pillar garnish. The arrow A view in FIG. 3 showing the relationship between the lower boss and the contact ribs,
FIGS. 5 and 6 are explanatory views of respective configurations showing modified examples of the contact ribs according to the first embodiment of the present invention.

Further, FIGS. 7 to 9 show a second embodiment in which the mating structure according to the present invention is applied to the joint portion of the center pillar garnish upper and the center pillar garnish lower, and FIG. 7 shows the center pillar garnish lower. FIG. 8 is a perspective view showing a configuration of an upper edge portion, FIG. 8 is a cross-sectional view showing a joined state of the center pillar garnish upper and the center pillar garnish lower, and FIG. 9 is a perspective view showing a modified example of the contact rib in the second embodiment of the invention. Is.

First, a first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, on the indoor side of a center pillar panel (not shown), the center pillar panel is formed in a state in which the center pillar garnish upper 10 and the center pillar garnish lower 20 formed of upper and lower halves are joined to opposite edges 10a and 20a, respectively. Is attached to.

The upper edge 10b of the center pillar garnish upper 10 is in a tight state with the roof trim 30.
Is attached to the panel at the stopping point A, and the lower edge 20b of the center pillar garnish lower 20 is also tightly butted against the floor trim 31,
It is attached to the panel by a stop point B.

Therefore, the joint between the upper edge 10b of the center pillar garnish upper 10 and the roof trim 30,
And the lower edge 20 of the center pillar garnish lower 20
The appearance of the joint between b and the floor trim 31 is kept extremely good. Reference numeral 32 indicates a kicking plate installed at the edge of the door opening of the floor trim 31.

The center pillar garnish upper 10 and the center pillar garnish lower 20 are each made of a PP (polypropylene) resin injection molded product or a mold press molded product.

By the way, the feature of the present invention is that when applied to the structure for combining the center pillar garnish upper 10 and the center pillar garnish lower 20, the management of the alignment gap at the initial stage of the mounting can be performed very easily and accurately, and it looks good. In addition to being preferable, even if the center pillar garnish upper 10 and the center pillar garnish lower 20 are subjected to expansion and contraction stress in the longitudinal direction, that is, along the vertical direction of the vehicle due to changes in environmental temperature, it is possible to prevent damage to the mating portion and durability. It is characterized by increasing.

That is, the opposing edges 10a, 20a of the center pillar garnish upper 10 and the center pillar garnish lower 20 are, as shown in FIG.
A plate-shaped flange 11 is formed to extend downward at 0a, and square openings 12 are formed on the left and right sides of the flange 11.

On the other hand, the center pillar garnish lower 2
The upper edge 20a of 0 abuts on the surface of the flange 11 of the center pillar garnish upper 10, and the bent flange 21 is formed so that the product surfaces of the center pillar garnish upper 10 and the center pillar garnish lower 20 are substantially flush with each other. Has been done. Furthermore, in order to achieve a tight joint at the joint between the center pillar garnish upper 10 and the center pillar garnish lower 20,
On the back surface of the center pillar garnish lower 20, a boss 40 and a boss 40 are provided so as to correspond to the openings 12, respectively.
4 plate-like contact ribs 41 are inclined from the outer peripheral surface of the boss 40 in a state of being inclined at a predetermined angle with respect to the vertical direction, in the present embodiment, the 4 contact ribs 41 are each inclined at 45 °. It extends outward.

3 and 4 show the state where the center pillar garnish upper 10 and the center pillar garnish lower 20 are joined. As is apparent from FIG. 4, the boss 40 is inserted substantially in the center of the opening 12,
The four contact ribs 41 extending outwardly around the boss 40 are provided with four contact ribs 41 a, 41 for convenience sake.
When coded as b, 41c, 41d, the abutment ribs 41a, 41b extending obliquely downward from the boss 40 have four tips at the lower corners 12a, 12b near the end of the four corners of the opening 12, respectively. The contact ribs 41 are in contact with each other and extend obliquely upward from the boss 40.
The tips of c and 41d are in contact with the upper corners 12c and 12d near the center of the four corners of the opening 12.

Further, all of the four contact ribs 41a to 41d do not necessarily contact the respective corner portions 12a to 12d of the opening 12, but at least a part thereof may contact.

Therefore, as shown in FIG. 3, the sectional structure of the state where the center pillar garnish upper 10 and the center pillar garnish lower 20 are joined is as shown in FIG. 3, in the center of the opening 12 formed in the flange 11 of the center pillar garnish upper 10. Pillar garnish lower 2
A boss 40 projecting from the back surface of 0 is accommodated, and at least a part of the tip of a contact rib 41 integrated in a slanting shape around the boss 40 is fitted so as to abut the edge of the opening 12. Therefore, the joint portion of the center pillar garnish upper 10 and the center pillar garnish lower 20 is tightly joined,
It is possible to constantly manage the alignment gap at the initial stage of attachment indicated by reference numeral d in FIG. 3, and to obtain an excellent appearance and appearance.

The alignment gap d is preferably set to a size such that it becomes zero tight when the center pillar garnish upper 10 and the center pillar garnish lower 20 are in an extended state at a high temperature in the vehicle.

Therefore, the first feature of the mating structure according to the present invention is, when applied to the mating structure of the center pillar garnish upper 10 and the center pillar garnish lower 20, respectively, the roof trim 30 and the floor trim 3 respectively.
The joint portion with 1 is tightly joined, and the joined state of the center pillar garnish upper 10 and the center pillar garnish lower 20 is also joined tightly, and the fitting gap d between them can be easily controlled with a constant dimension. Therefore, it is possible to easily achieve a beautiful appearance of the mating portion.

Another feature of the present invention is that the boss 40 and the abutment rib 41 do not suffer from defects such as cracking and breakage even when the environmental temperature fluctuates, and the durability of the mating portion is maintained for a long period of time. To raise.

Therefore, as described above, the contact ribs 41 extending radially on the outer periphery of the boss 40 are inclined so as to have an inclination angle of 45 ° in this embodiment along the vertical direction.

Therefore, for example, when the thermal cycle temperature is low (when the vehicle interior temperature becomes low in winter), the center pillar garnish upper 10 has a difference in linear expansion coefficient between the metal center pillar panel and the synthetic resin molded body. Also, since the center pillar garnish lower 20 contracts and the center pillar garnish upper 10 is fixed to the panel at the stopping point A, the center pillar garnish lower 20 is pulled toward the roof trim 30 side, and the center pillar garnish lower 20 also stops at the stopping point B. Since the center pillar garnish lower 20 is fixed to the panel, the center pillar garnish lower 20 is pulled toward the floor trim 31 side, and as a result, the actual contracting stress acts on the inclined contact ribs 41a and 41b from the lower edge 12e of the opening 12. Become.

At this time, the inclined contact ribs 41a, 41b
Is inclined by about 45 ° with respect to the direction in which the contracting force acts, the stress applied to the boss 40 can be reduced by bending and deforming the contact ribs 41a and 41b against this contracting stress. Therefore, cracking and breakage of the boss 40 and the contact rib 41 at low temperatures in winter can be prevented as much as possible.

On the other hand, at the time of high heat cycle (when the temperature inside the vehicle becomes high in summer), the center pillar garnish upper 10 and the center pillar garnish due to the difference in linear expansion coefficient between the metal center pillar panel and the synthetic resin molded body. An external force is applied to each of the lowers 20 in the extension direction.

At this time, the mating portions of the two parts 10, 20 approach each other in a direction in which the mating gap d at the initial stage of mounting is eliminated, but the boss 40 is attached to the upper edge 12f of the opening 12.
The tip portions of the contact ribs 41c and 41d extending in an inclined shape from the periphery of the contact ribs 41c and 41d come into contact with each other, and the extension forces of the center pillar garnish upper 10 and the center pillar garnish lower 20 are directly applied to the contact ribs 41c and 41d.

By the way, since the contact ribs 41c, 41d are set to be inclined by about 45 ° with respect to the longitudinal direction, the contact ribs 41c, 41d are easily bent to reduce the stress applied to the boss 40. can do. Therefore, it is possible to prevent the boss 40 and the contact rib 41 from cracking or breaking as much as possible.

Thus, even if the environmental temperature changes,
Since the contact ribs 41 provided around the boss 40 are set to be inclined at a predetermined angle with respect to the longitudinal direction, that is, the direction in which the expansion and contraction stress acts, by inducing the bending deformation of the contact ribs 41, the boss 40 can be deformed. It is possible to prevent cracks and breakage of the contact ribs 41 and improve durability.

As a mode of the contact rib 41, the contact rib 41 is formed in a Y shape as shown in FIG. That is, in addition to the inclined contact ribs 41c and 41d, the boss 4
A contact rib 41e extending downward from 0 along the longitudinal direction
And the inclined contact ribs 41c and 41d are
A contact rib 41 that extends downward while contacting or facing the upper corners 12c and 12d of the opening 12
Regarding e, it may be set so as to come into contact with substantially the center of the lower edge 12e of the opening 12. In this case, when the environmental temperature is high, the inclined contact ribs 41c and 41d are effective in inducing bending deformation.

Further, as shown in FIG. 6, the contact rib 41 can be set in an inverted Y shape in which the shape of FIG. 5 is turned upside down. In this case, the contact ribs 41 a and 41 b extending downward from the boss 40 in an inclined shape are provided at the lower corner portion 1 of the opening 12.
2a, 12b in contact with or facing each other, the boss 40
From the contact rib 41f extending upward along the longitudinal direction from
The upper edge 12f of the opening 12 abuts or faces almost the center thereof.

In the shape of the contact ribs 41 shown in FIG. 6, when the center pillar garnish upper 10 and the center pillar garnish lower 20 are subjected to contracting stress when the environmental temperature is low, the inclined contact ribs 41a, Four
By flexing and deforming 1b, it is possible to prevent the boss 40 and the abutment rib 41 from cracking or damage, and to improve durability.

As described above, the shape of the opening 12 and the contact rib 4
The shape of 1 can be appropriately varied.

Next, FIGS. 7 to 9 show a second embodiment of the present invention. The second embodiment is also applied to the combined portion of the center pillar garnish upper 10 and the center pillar garnish lower 20.

That is, in the second embodiment,
Although the center pillar garnish upper 10 is not shown in FIG. 7 because it is the same as that of the first embodiment, the center pillar garnish lower 20 corresponds to the opening 12 of the center pillar garnish upper 10 and corresponds to the boss 40.
And contact ribs 41 extending vertically from the upper and lower surfaces of the boss 40, respectively, and slits 42 are formed in the left and right sides of the boss 40 along the axial direction.

Therefore, the state where the center pillar garnish lower 20 is joined to the center pillar garnish upper 10 is shown in FIG. 8, because at least one side of the tips of the contact ribs 41 is fitted in the opening 12 so that they are in contact with each other. As a result, it is possible to constantly manage the alignment gap d between the two, and it is possible to secure a good appearance and appearance of the alignment portion as in the first embodiment.

Then, due to the fluctuation of the environmental temperature, the opening 12
Although the stress at the time of expansion and contraction is applied to the boss 40 from the edge portion of the boss 40 via the contact rib 41, since the slit 42 is formed, the boss 40 can be flexibly deformed in the vertical direction to absorb this stress. it can.

Therefore, in the second embodiment, the slit 42 is notched in the axial direction of the boss 40 as compared with the conventional tight structure, so that the boss 40 and the contact rib 41 are formed.
It is possible to eliminate problems such as cracking and breakage of the product and improve durability.

Next, FIG. 9 shows a modified example of the second embodiment, in which the ribs 41a to 41 are applied to the outer peripheral surface of the boss 40 in which the slit 42 is formed in the axial direction in an inclined manner.
This is a configuration in which d is integrated in an inclined shape at an inclination angle of about 45 ° with respect to the vertical direction.

Then, the inclined contact ribs 41a to 41d
According to the structure in which the slit 42 is formed on the outer peripheral surface and the slit 42 is cut out in the boss 40, the boss 4 is formed by the slit 42.
0 flexibility is increased and the inclined contact ribs 4
By adding the flexural deformations 1a to 41d, it is possible to more effectively absorb the stretching stress along the vertical direction. The Y-shaped or inverted Y-shaped contact rib 41, that is, the contact rib 41 having the shape shown in FIGS. 5 and 6 can be applied to the boss 40 provided with the slit 42.

The first and second embodiments described above are applied to the mating structure at the joint portion of the center pillar garnish upper 10 and the center pillar garnish lower 20. If it is a combined structure of interior parts consisting of, it can be widely applied to roof side garnish and rear pillar garnish.

[0058]

As described above, the mating structure of the interior parts according to the present invention is made of a long synthetic resin molding.
When joining two interior parts, the opposite edge of the joint is attached to the panel so that it is tight with the adjacent part, and an opening is provided on one side of the opposing edges of the mating parts of the interior parts and on the other side. A boss to be housed in this opening and a contact rib that abuts against the edge of the opening are provided, and this contact rib is set to be inclined with respect to the longitudinal direction of the interior part, or a slit that allows the boss to bend is formed in the boss. By adopting a configuration in which a notch is formed in the axial direction of, the tight fitting of the mating parts of both interior parts makes it possible to manage the mating gap at the initial stage of installation consistently and maintain a good external appearance at the initial stage of installation. It has the effect of being able to.

Further, a contact rib fitted into the opening formed in the interior part on one side is set to be inclined with respect to the longitudinal direction of the interior part, or a slit is formed on the side surface of the boss to be inserted into the opening. Therefore, even if an external force is applied in the expansion and contraction direction of the interior parts due to changes in the ambient temperature, the inclined contact ribs will bend or the boss itself will bend due to the slits, causing Since cracking, breakage, etc. can be prevented as much as possible and the mating portion of the resin parts is not destroyed, the durability of the mating portion can be kept good for a long period of time.

[Brief description of drawings]

FIG. 1 is an overall view showing an embodiment in which a mating structure according to the present invention is applied to a center pillar garnish upper and a center pillar garnish lower.

FIG. 2 is an explanatory diagram showing a first embodiment in which a mating structure according to the present invention is applied to a center pillar garnish upper and a center pillar garnish lower.

FIG. 3 is a cross-sectional view showing a state in which the center pillar garnish upper and the center pillar garnish lower shown in FIG. 2 are joined.

FIG. 4 is a view on arrow A in FIG.

5 is a front view showing a modified example of a contact rib provided on the center pillar garnish lower shown in FIG. 2. FIG.

FIG. 6 is a front view showing a modified example of a contact rib provided in the center pillar garnish lower shown in FIG.

FIG. 7 shows a second embodiment of the mating structure according to the present invention, and is a perspective view of the upper end portion of the center pillar garnish lower seen from the back surface side.

FIG. 8 is a cross-sectional view showing a second embodiment of a mating structure according to the present invention.

FIG. 9 is a perspective view showing a modified example of a boss and a contact rib used in the second embodiment of the mating structure according to the present invention.

FIG. 10 is an external view showing a conventional center pillar garnish upper and center pillar garnish lower.

FIG. 11 is a cross-sectional view showing a configuration of a combined portion of a conventional center pillar garnish upper and a center pillar garnish lower.

FIG. 12 is a cross-sectional view showing a state in which a joint portion between a conventional center pillar garnish upper and a center pillar garnish lower is tightly joined.

13 is a view on arrow B in FIG.

[Explanation of symbols]

10 Center pillar garnish upper 10a Lower edge (joint edge) 10b Upper edge 11 flange 12 openings 12a-12d corner part 12e Lower edge of opening 12f opening upper edge 20 center pillar garnish lower 20a Upper edge (joint edge) 20b lower edge 21 bent flange 30 roof trim 31 floor trim 32 kicking plate 40 Boss 41 Relief rib 41a-41d Striking ribs 41e, 41f Vertically extending contact ribs 42 slits A, B stop point

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F16B 5/06 F16B 5/06 FF term (reference) 3D023 BA01 BD02 BD08 BE36 3J001 FA05 GA06 GB01 HA04 HA07 HA09 KA07 KA21 KB01 3J022 DA12 DA15 EA02 EA11 EC02 ED06 FA05 FB08 FB13 HA05 HB02

Claims (2)

[Claims] 1. One longitudinal edge (10) of two interior parts (10, 20) made of a long synthetic resin molded body in the longitudinal direction.
a, 20a), and the interior parts (10,
20) In the combined structure of the interior part (10, 20) in which the other longitudinal end (10b, 20b) of the longitudinal direction (20b) is attached tightly to the adjacent part (30, 31), the interior part (10, 20) Joining edge (10a, 20
The flange (11) is extended to one side (10a) in a) and the opening (12) is opened in this flange (11), while the opening (1) is provided on the back surface of the other side (20a).
2) A boss (40) housed in the boss (40) and a plurality of plate-shaped contact ribs (41) extending outward from the outer peripheral surface of the boss (40) are integrally formed, and at least at the edge of the opening (12). A part of the contact rib (41) comes into contact with the interior rib (1
The joint edges (10a, 20a) of (0, 20) are tightly joined to each other, and the contact ribs (41) are inclined at a predetermined angle with respect to the expansion / contraction direction of the interior component (10, 20). This is a combined structure of interior parts. 2. One longitudinal edge (10) of two interior parts (10, 20) made of a long synthetic resin molding.
a, 20a), and the interior parts (10,
20) In the combined structure of the interior part (10, 20) in which the other longitudinal end (10b, 20b) of the longitudinal direction (20b) is attached tightly to the adjacent part (30, 31), the interior part (10, 20) Joining edge (10a, 20
The flange (11) is extended to one side (10a) in a) and the opening (12) is opened in this flange (11), while the opening (12) is formed on the back surface of the other side (20a).
A boss (40) housed inside and a plurality of plate-shaped contact ribs (41) extending outward from the outer peripheral surface of the boss (40) are integrally formed, and at least a part of the contact ribs (41) By bringing the side edge of the interior part into contact with the edge part of the opening (12), the joint edge (10a, 10a,
20a) is tightly joined and the interior parts (1
When an external force is applied in the expansion / contraction direction of (0, 20), the boss (4
The slit (42) that induces the bending of (0) is the boss (40).
A structure for fitting interior parts, characterized in that a notch is formed in the peripheral wall along the axial direction.