JP4117824B2 - Alignment structure of interior parts - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for aligning interior parts made of a long resin molded body.In particular, the initial alignment gap in the alignment portion can be managed uniformly, and the appearance is excellent. The present invention relates to a structure for aligning interior parts, which can prevent destruction of a mating portion even when an external force is applied, and has improved durability.
[0002]
[Prior art]
FIG. 10 shows the state in which the center pillar garnish upper 1 and the center pillar garnish lower 2 made of a long synthetic resin molded body mounted on the indoor side of a center pillar panel (not shown) of the vehicle are attached from the indoor side. It is an external view, and the upper edge of the center pillar garnish upper 1 is abutted with the roof trim 3, and the lower edge of the center pillar garnish lower 2 is abutted with the floor trim 4.
[0003]
Further, in relation to the center pillar garnish upper 1, the center pillar garnish lower 2, and the roof trim 3 and the floor trim 4 adjacent thereto, the center pillar garnish upper 1 and the roof are prevented so as not to cause a gap between parts. Usually, the center pillar garnish lower 2 and the floor trim 4 are fixed tightly while being fixed tightly to the trim 3.
[0004]
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 in the longitudinal direction, that is, up and down when the environmental temperature fluctuates, that is, during summer high temperatures. It tends to shrink along the vertical direction when the temperature is low in winter.
[0005]
And in order to absorb the expansion-contraction distortion of the center pillar garnish upper 1 and center pillar garnish lower 2 which consist of a long synthetic resin molding in this way, the junction part of the center pillar garnish upper 1 and the center pillar garnish lower 2 In some cases, the strain absorption structure shown in FIG. 11 may be employed.
[0006]
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-shaped abutting rib 7 around the opening are formed on the back surface of the center pillar garnish lower 2 so as to correspond thereto. 11, the abutment rib 7 formed around the boss 6 is accommodated in the opening 5 with play in the up-down direction. The expansion and contraction strain due to the fluctuation of the environmental temperature of the center pillar garnish upper 1 and the center pillar garnish lower 2 can be absorbed.
[0007]
However, when the stretchable strain absorbing structure shown in FIG. 11 is adopted, when the center pillar garnish upper 1 and the center pillar garnish lower 2 are attached to the panel, the alignment gap between them (indicated by the symbol d in FIG. 11) is managed uniformly. It is difficult to do so, and the alignment ski d tends to vary. When this alignment skid is small, deformation due to interference of garnishes 1 and 2 occurs during the high temperature of the heat cycle, and conversely, when too much alignment skid is taken, When shrunk, the gaps are very conspicuous and there is a drawback that the appearance of the appearance is greatly impaired.
[0008]
Therefore, recently, in addition to fixing the upper edge of the center pillar garnish upper 1 and the roof trim 3 in close contact with each other, in addition to fixing the lower edge of the center pillar garnish lower 2 and the floor trim 4 in close contact, As shown in FIGS. 12 and 13, an attempt has been made to attach the mating portion of the center pillar garnish upper 1 and the center pillar garnish lower 2 tightly.
[0009]
That is, when the boss 6 protruding from the back 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, the abutment rib 7 formed around the boss 6 is accommodated. Is a structure in which both are joined so as to be in close contact with the edge 5 a of the opening 5.
[0010]
[Problems to be solved by the invention]
As described above, conventionally, when the parts made of a long synthetic resin molded body such as the center pillar garnish upper 1 and the center pillar garnish lower 2 are joined to each other, the expansion and contraction distortion of the parts due to the fluctuation of the environmental temperature is absorbed. For this reason, when play is given to the joint portion, it is difficult to manage the initial alignment gap between the two, so that the center pillar garnish upper 1 and the center pillar garnish lower 2 are joined as shown in FIGS. In addition, the attachment rib 7 is tightly attached so as to abut.
[0011]
In particular, when the center pillar garnish upper 1 and the center pillar garnish lower 2 contract in the longitudinal direction in winter, the center pillar garnish upper 1 is pulled to the roof trim 3 side, and conversely, the center pillar garnish lower 2 is attracted to the floor side. The tensile load at this time causes a problem that the boss 6 and the contact rib 7 are cracked or broken.
[0012]
The present invention has been made in view of such circumstances, and in an alignment structure of an interior part made of a long synthetic resin molded body, the initial alignment gap between both parts can be managed uniformly and has an excellent design. In addition, it is possible to prevent breakage and breakage of bosses and abutment ribs even when stretched along the longitudinal direction is applied to the mating part due to fluctuations in environmental temperature. The purpose is to provide.
[0013]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention of the present application joins the longitudinal direction one side edges of two interior parts made of a long synthetic resin molded body, and the longitudinal direction other side edges of the interior parts are joined together. In the mating structure of interior parts that are attached tightly with adjacent parts, a flange is extended on one side of the joint edge of the interior part, and an opening is opened in this flange, while the back surface on the other side is The boss accommodated in the opening and a plurality of plate-like contact ribs extending outward from the outer peripheral surface of the boss are integrally formed, and at least a part of the contact rib abuts on the opening edge, The joint edges are tightly joined together, and the abutment ribs are set at a predetermined angle with respect to the expansion / contraction direction of the interior parts. When the extension and contraction force along the longitudinal direction is applied to the interior parts due to fluctuations in the environmental temperature, the slanted ribs can be bent and deformed to reduce the stress applied to the boss. It is characterized by that.
[0014]
Here, as the two interior parts made of the long resin molded bodies joined together, a center pillar garnish upper and a center pillar garnish lower, a roof side garnish and a rear pillar garnish, or the like can be considered.
[0015]
And it is comprised from the opening opened in the flange formed in the edge of the interior component of one side, and the boss | hub and the contact rib which are fitted in this opening on the back surface of the interior component of the other side, The abutment rib is formed as a plurality of plate-like ribs that extend outward from the outer peripheral surface of the cylindrical boss. In particular, the abutment rib is set so as to be inclined along the longitudinal direction of the component. It is characteristic that it is.
[0016]
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 or an oval shape. However, as a preferred embodiment, the shape of the opening is set to a square shape. A boss is inserted in the center, and the tip of the abutment rib integrated around the boss is preferably 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 abutment ribs that are in contact with the corners near the ends of the openings. When an external force is applied, the stress applied to the boss can be reduced by bending of the contact rib that contacts the corner portion near the center of the opening.
[0017]
Further, in another aspect, an inclined contact rib is brought into contact with the corner portion near the end of the opening, the contact rib is not applied to the remaining corner portion, and the contact rib extending in the length direction is brought into contact with the side. Alternatively, an inclined contact rib may be applied to the corner near the center of the opening, and a contact rib extending in the longitudinal direction from the boss may be applied to the side of the opening close to the terminal. That is, the abutting rib provided around the mounting boss can be set in a Y shape or an inverted Y shape.
[0018]
Furthermore, as another aspect of the present invention, a slit is formed in the boss in the axial direction, and the boss itself is provided with flexibility so as to cope with the expansion and contraction stress applied to the resin component accompanying the environmental temperature fluctuation. You may do it.
[0019]
At this time, as the abutment rib integrated with the boss with the slit, it is more effective if a plate-like abutment rib that is inclined with respect to the expansion / contraction direction of the part is set, but the inclination is not inclined in the expansion / contraction direction. A cross-shaped rib or the like can also be set.
[0020]
As is clear from the above configuration, the interior structure mating structure according to the present invention is adjacent to the joint portion of the interior parts that are joined to each other and are formed of long synthetic resin moldings. The interior part is fixed tightly, and the joint part of both parts is configured to fit and fix the boss and the abutment rib formed on the other side in the opening on one side. Since each portion is in a tight state, the initial alignment gap can be easily managed, and the appearance appearance can be maintained well.
[0021]
Further, in the mating structure according to the present invention, at least some of the contact ribs inserted into the opening are fitted in the opening so as to be inclined along the expansion / contraction direction, or the boss Since slits are formed along the axial direction, when the extension and contraction forces along the longitudinal direction are applied to the interior parts due to fluctuations in the environmental temperature, the slanted ribs are bent and deformed. The stress applied to the boss can be reduced.
[0022]
Moreover, when the boss is formed with a slit, the stress applied to the boss can be absorbed by the boss itself being bent.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a matching structure for interior parts according to the invention will be described in detail with reference to the accompanying drawings.
[0024]
FIG. 1 is an overall view showing an embodiment in which a 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 an application to a mating portion of a center pillar garnish upper and a center pillar garnish lower. FIG. 3 is a sectional view showing a joint portion between the center pillar garnish upper and the center pillar garnish lower, and FIG. 4 is an opening of the center pillar garnish upper and a boss of the center pillar garnish lower. FIG. 3 is a view showing the relationship between the contact ribs, and FIG. 5 and FIG. 6 are explanatory diagrams of the respective configurations showing modifications of the contact ribs in the first embodiment of the present invention.
[0025]
7 to 9 show a second embodiment in which the mating structure according to the present invention is applied to the joint portion between the center pillar garnish upper and the center pillar garnish lower. FIG. 7 shows the upper edge portion of the center pillar garnish lower. FIG. 8 is a 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 modification of the abutment rib in the second embodiment of the present invention.
[0026]
First, a first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, a center pillar panel is formed with a center pillar garnish upper 10 and a center pillar garnish lower 20 which are divided into upper and lower halves joined to the indoor side of a center pillar panel (not shown) with opposing edges 10a and 20a facing each other. Is attached.
[0027]
The center pillar garnish upper 10 is attached to the panel by a stop point A so that the upper edge 10b of the center pillar garnish upper 10 is tight with the roof trim 30. Also, it is attached to the panel by a stop point B in a state of being tightly butted against the floor trim 31.
[0028]
Therefore, the appearance of the joint between the upper edge 10b of the center pillar garnish upper 10 and the roof trim 30 and the appearance of the joint between the lower edge 20b of the center pillar garnish lower 20 and the floor trim 31 are maintained very well. Reference numeral 32 denotes a kicking plate installed at the door opening edge of the floor trim 31.
[0029]
The center pillar garnish upper 10 and the center pillar garnish lower 20 are each composed of an injection molded body or a mold press molded body of PP (polypropylene) resin.
[0030]
By the way, the feature of the present invention is that, when applied to the mating structure of the center pillar garnish upper 10 and the center pillar garnish lower 20, the management of the alignment skies at the initial stage of installation is very simple and accurate, and is preferable in appearance. Even if the center pillar garnish upper 10 and the center pillar garnish lower 20 are subjected to stretching stress along the longitudinal direction, that is, the vertical direction of the vehicle due to the fluctuation of the environmental temperature, it is possible to prevent the mating portion from being broken and improve the durability. It is a feature.
[0031]
That is, as shown in FIG. 2, the opposite ends 10a and 20a of the center pillar garnish upper 10 and the center pillar garnish lower 20 have a plate-like flange 11 on the lower edge 10a of the center pillar garnish upper 10, respectively. The rectangular opening 12 is opened on the left and right sides of the flange 11.
[0032]
On the other hand, the upper edge 20a of the center pillar garnish lower 20 abuts on the surface of the flange 11 of the center pillar garnish upper 10, and the product surfaces of the center pillar garnish upper 10 and the center pillar garnish lower 20 are substantially flush. A bent flange 21 is formed. Furthermore, the back of the center pillar garnish lower 20 has a periphery of the boss 40 and the boss 40 so as to correspond to the opening 12 so that the center pillar garnish lower 20 and the center pillar garnish lower 20 can be tightly joined. In this embodiment, the four plate-like contact ribs 41 are inclined at a predetermined angle with respect to the vertical direction. In this embodiment, the four contact ribs 41 are inclined outwardly from the outer peripheral surface of the boss 40 by 45 °. It extends toward.
[0033]
And the state which joined the center pillar garnish upper 10 and the center pillar garnish lower 20 is shown in FIG. 3, FIG. As is apparent from FIG. 4, a boss 40 is inserted in the approximate center of the opening 12, and the four abutment ribs 41 extending outwardly around the boss 40 are, for convenience, the four abutment ribs 41. 41a, 41b, 41c, and 41d, the abutting ribs 41a and 41b extending downward and obliquely downward from the boss 40 are respectively connected to the lower corners 12a and 12b near the terminal among the four corners of the opening 12. The tips of the contact ribs 41c and 41d extending obliquely upward from the boss 40 are in contact with the upper corners 12c and 12d closer to the center of the four corners of the opening 12. It touches.
[0034]
Moreover, even if all of the four abutting ribs 41a to 41d are not necessarily in contact with the respective corner portions 12a to 12d of the opening 12, it is sufficient that at least some of them are in contact.
[0035]
Therefore, the cross-sectional structure of the center pillar garnish upper 10 and the center pillar garnish lower 20 joined to each other has a center pillar garnish lower 20 in the opening 12 formed in the flange 11 of the center pillar garnish upper 10, as shown in FIG. The boss 40 protruding from the back surface of the boss 20 is accommodated, and at least a part of the tip end of the abutment rib 41 integrated in an inclined manner is fitted around the boss 40 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 joined in a tight shape, and the alignment gap at the initial stage of installation indicated by the symbol d in FIG. And an excellent appearance can be obtained.
[0036]
The alignment ski d is preferably set to a dimension that 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.
[0037]
Therefore, the first feature of the mating structure according to the present invention is that when applied to the mating structure of the center pillar garnish upper 10 and the center pillar garnish lower 20, the mating portions of the roof trim 30 and the floor trim 31 are tightly joined. In addition, the center pillar garnish upper 10 and the center pillar garnish lower 20 are joined in a tight state, and the alignment skid between the two can be easily managed with a constant size, so that the appearance of the mating portion is beautiful. Is that it can be easily achieved.
[0038]
Furthermore, another feature of the present invention is that the boss 40 and the abutment rib 41 do not break or break due to fluctuations in the environmental temperature, and the durability of the mating portion is improved over a long period of time. is there.
[0039]
Therefore, as described above, the abutting rib 41 extending radially on the outer periphery of the boss 40 is set to be inclined along the vertical direction so as to have an inclination angle of 45 ° in this embodiment.
[0040]
Therefore, for example, when the thermal cycle is low (in winter, when the temperature inside the vehicle is low), the center pillar garnish upper 10 and the center pillar are caused by the difference in linear expansion coefficient between the metal center pillar panel and the synthetic resin molded body. Since the garnish lower 20 contracts and the center pillar garnish upper 10 is fixed to the panel at the stop point A, it is pulled to the roof trim 30 side. Similarly, the center pillar garnish lower 20 is fixed to the panel at the stop point B. Therefore, the center pillar garnish lower 20 is attracted toward the floor trim 31, and as a result, actual contraction stress acts on the inclined contact ribs 41 a and 41 b from the lower edge 12 e of the opening 12.
[0041]
At this time, since the inclined contact ribs 41a and 41b are inclined by approximately 45 ° with respect to the direction in which the contraction force acts, the contact ribs 41a and 41b are bent and deformed by the contraction stress, whereby the boss 40 The stress applied to can be reduced. Therefore, it is possible to prevent the boss 40 and the contact rib 41 from being broken or broken at low temperatures in winter.
[0042]
On the other hand, the center pillar garnish upper 10 and the center pillar garnish lower 20 are caused by a difference in linear expansion coefficient between the metal center pillar panel and the synthetic resin molded body at the time of high heat cycle temperature (when the summer interior temperature becomes high). External force is applied in the extending direction.
[0043]
At this time, the mating portion of the parts 10 and 20 approaches in a direction in which the alignment skid at the initial stage of the mounting is eliminated, but extends in an inclined manner from the periphery of the boss 40 with respect to the upper edge 12f of the opening 12. The tip portions of the contact ribs 41c and 41d are in contact with each other, and the extension force of the center pillar garnish upper 10 and the center pillar garnish lower 20 is directly applied to the contact ribs 41c and 41d.
[0044]
By the way, since the abutting ribs 41c and 41d are set in a state inclined by approximately 45 ° with respect to the longitudinal direction, the abutting ribs 41c and 41d can be easily bent to reduce the stress applied to the boss 40. it can. Therefore, the boss 40 and the contact rib 41 can be prevented from being broken or broken as much as possible.
[0045]
In this manner, the contact rib 41 provided around the boss 40 is 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 even when the ambient temperature varies. By inducing the bending deformation, it is possible to prevent breakage and breakage of the boss 40 and the contact rib 41, and to improve durability.
[0046]
Further, as an aspect of the abutment rib 41, the abutment rib 41 is formed in a Y shape as shown in FIG. That is, in addition to the inclined contact ribs 41c and 41d, a contact rib 41e extending downward from the boss 40 along the longitudinal direction is provided, and for the inclined contact ribs 41c and 41d, the upper corner portion 12c of the opening 12 is provided. , 12d may be set in contact with or opposed to each other, and the abutting rib 41e extending downward may be brought into contact with the substantially 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.
[0047]
Further, as shown in FIG. 6, the abutting rib 41 can be set in an inverted Y shape in which the shape of FIG. In this case, the abutting ribs 41 a and 41 b extending downward from the boss 40 are in contact with or opposed to the lower corner portions 12 a and 12 b of the opening 12, and the abutting extends from the boss 40 upward along the longitudinal direction. The rib 41f comes into contact with or faces substantially the center of the upper edge 12f of the opening 12.
[0048]
In the shape of the abutment rib 41 shown in FIG. 6, when the environmental temperature is low, the slanted abutment ribs 41a and 41b bend when contraction stress acts on the center pillar garnish upper 10 and the center pillar garnish lower 20. By deforming, the boss 40 and the contact rib 41 can be prevented from being broken or damaged, and the durability can be enhanced.
[0049]
Thus, the shape of the opening 12 and the shape of the contact rib 41 can be appropriately varied.
[0050]
Next, FIGS. 7 to 9 show a second embodiment of the present invention. Also in the second embodiment, the present invention is applied to the mating portion of the center pillar garnish upper 10 and the center pillar garnish lower 20.
[0051]
That is, in the second embodiment, the center pillar garnish upper 10 is the same as that of the first embodiment and is not shown in FIG. 7, but the center pillar garnish lower 20 corresponds to the opening 12 of the center pillar garnish upper 10. The boss 40 and the abutment rib 41 extending in the vertical direction from the upper and lower surfaces of the boss 40 are formed, and slits 42 are formed in the left and right sides of the boss 40 along the axial direction.
[0052]
Accordingly, FIG. 8 shows a state in which the center pillar garnish lower 20 is joined to the center pillar garnish upper 10, but since the at least one side of the abutting rib 41 is fitted in the opening 12, Therefore, it is possible to maintain a good appearance appearance for the mating portion as in the first embodiment.
[0053]
Then, due to fluctuations in the environmental temperature, stress at the time of expansion / contraction is applied to the boss 40 from the edge of the opening 12 via the contact rib 41. However, since the slit 42 is formed, the boss 40 is bent and deformed in the vertical direction. By doing so, this stress can be absorbed.
[0054]
Therefore, in this second embodiment, since the slit 42 is notched in the axial direction of the boss 40 as compared with the conventional tight structure, problems such as cracking and breakage of the boss 40 and the contact rib 41 can be solved. , Can increase durability.
[0055]
Next, FIG. 9 shows a modification of the second embodiment. The ribs 41a to 41d are inclined approximately 45 with respect to the vertical direction by respectively inclining against the outer peripheral surface of the boss 40 in which the slit 42 is formed in the axial direction. The structure is integrated in an inclined manner at an inclination angle of °.
[0056]
According to the configuration in which the inclined contact ribs 41 a to 41 d are provided on the outer peripheral surface and the slit 42 is notched in the boss 40, the slit 42 increases the flexibility of the boss 40 and the inclined contact rib. By adding the bending deformation of 41a to 41d, the stretching stress along the vertical direction can be more effectively absorbed. Further, a Y-shaped or inverted Y-shaped contact rib 41, that is, a contact rib 41 having the shape shown in FIGS. 5 and 6 can be applied to the boss 40 provided with the slits 42.
[0057]
The first embodiment and the second embodiment 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, but the interior made of a long synthetic resin molded body. If the structure is a combination of parts, it can be applied to a wide range of roof side garnish and rear pillar garnish.
[0058]
【The invention's effect】
As described above, in the interior part mating structure according to the present invention, when two interior parts made of a long synthetic resin molded body are joined, the opposite end edge of the joined part becomes tight with an adjacent part. In addition to attaching to the panel, an opening is provided on one side of the opposing edge of the mating part of the interior parts, and a boss accommodated in the opening and a contact rib that abuts the opening edge are provided on the other side. Since it is configured to be inclined to the longitudinal direction of the part, or a slit that allows the boss to be bent is formed in the axial direction of the boss, the joint part of both interior parts is tight. By joining, there is an effect that the alignment gap at the initial stage of attachment can be managed uniformly, and the appearance appearance at the initial stage of attachment can be maintained well.
[0059]
Further, the abutment rib fitted in the opening opened 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 inserted into the opening. Therefore, even if an external force is applied in the expansion / contraction direction of the interior parts due to fluctuations in the environmental temperature, the slanted ribs bend or the boss itself bends due to the slits, causing cracks or breakage of the bosses or the ribs. Etc. can be prevented as much as possible, and the mating portion between the resin parts is not destroyed, so that the durability of the mating portion can be maintained well over a long period of time.
[Brief description of the 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 view showing a first embodiment in which the mating structure according to the present invention is applied to a center pillar garnish upper and a center pillar garnish lower.
3 is a cross-sectional view showing a state where the center pillar garnish upper and the center pillar garnish lower shown in FIG. 2 are joined together. FIG.
4 is a view as seen from an arrow A in FIG. 3;
FIG. 5 is a front view showing a modified example of the abutment rib provided on the center pillar garnish lower shown in FIG. 2;
6 is a front view showing a modified example of the abutment rib provided on the center pillar garnish lower shown in FIG. 2. 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 as viewed from the back side.
FIG. 8 is a sectional view showing a second embodiment of a mating structure according to the present invention.
FIG. 9 is a perspective view showing a modification of the boss and the abutment 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 mating portion of a conventional center pillar garnish upper and a center pillar garnish lower.
FIG. 12 is a cross-sectional view showing a state where a joint portion between a conventional center pillar garnish upper and a center pillar garnish lower is tightly joined.
13 is a view taken in the direction of arrow B in FIG.
[Explanation of symbols]
10 Center pillar garnish upper
10a Lower edge (joining edge)
10b Upper edge
11 Flange
12 Opening
12a-12d Corner
12e Opening lower edge
12f upper edge of opening
20 Center pillar garnish lower
20a Upper edge (joining edge)
20b lower edge
21 bent flange
30 Roof trim
31 Floor trim
32 Kicking plate
40 Boss
41 ribs
41a-41d Abutting rib set in an inclined shape
41e, 41f Abutting rib extending in the vertical direction
42 slit
A, B Stop point

Claims (2)

The longitudinal direction one side edge (10a, 20a) of two interior components (10, 20) which consists of a long synthetic resin molding is joined, and the longitudinal direction other side of the said interior components (10, 20) In the combined structure of the interior parts (10, 20) in which the end edges (10b, 20b) are attached tightly to the adjacent parts (30, 31),
A flange (11) is extended on one side (10a) of the joint edge (10a, 20a) of the interior part (10, 20), and an opening (12) is opened in the flange (11), while the other On the back surface of the side (20a), there are a boss (40) housed in the opening (12) and a plurality of plate-like contact ribs (41) extending outward from the outer peripheral surface of the boss (40). It is integrally formed, at least a part of the abutment rib (41) abuts on the edge of the opening (12), the joining edges (10a, 20a) of the interior parts (10, 20) are tightly joined together, and the interior The abutment rib (41) is set to be inclined at a predetermined angle with respect to the expansion / contraction direction of the component (10, 20), and the extension force and contraction along the longitudinal direction are applied to the interior component (10, 20) due to fluctuations in environmental temperature. When force was applied, it was set to be inclined Te By deformed ribs (41), combined the interior parts, characterized in that to be able to reduce the stress applied to the boss (40) structure. The longitudinal direction one side edge (10a, 20a) of two interior components (10, 20) which consists of a long synthetic resin molding is joined, and the longitudinal direction other side of the said interior components (10, 20) In the combined structure of the interior parts (10, 20) in which the end edges (10b, 20b) are attached tightly to the adjacent parts (30, 31),
A flange (11) is extended on one side (10a) of the joint edge (10a, 20a) of the interior part (10, 20), and an opening (12) is opened in the flange (11), while the other On the back surface of the side (20a), there are a boss (40) accommodated in the opening (12), and a plurality of plate-like contact ribs (41) extending outward from the outer peripheral surface of the boss (40). The joint edge (10a, 20a) of the interior part (10, 20) is tightly formed by integrally forming and abutting the side edge of at least a part of the contact rib (41) with the edge of the opening (12). When the external force is applied in the expansion / contraction direction of the interior parts (10, 20), the slit (42) that induces the bending of the boss (40) is formed in the peripheral wall of the boss (40) along the axial direction. by being, the boss (40) itself By flexing, combined interior components, characterized in that to be able to absorb the stress applied to the boss (40) structure.

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