JP2010052446A - Assembly structure of decorative component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembly structure of a decorative component which is easily assembled even if a large or long part, and excellent in assemblability. <P>SOLUTION: A first engaging claw 21 is projected from a back side of a first wall 11 of a decorative component, a second engaging claw 22 is projected from a back side of a second wall, and a first engaged part and a second engaged part 32 are formed on other parts. The first engaged part is constituted to be an engagement hole, and the second engaging claw 22 faces the second engaged part 32. As the position of the decorative component is changed from a state that the first engaging claw 21 is inserted in the engagement hole, a guide face guides the first engaging claw 21, the second engaging claw 22 is positioned in the direction orthogonal to the projecting direction of the second engaging claw 22. After the positioning, the second engaging claw 22 is started to be engaged with the second engaged part 32. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a decorative part assembly structure in which a decorative part is assembled to another part.

In this type of assembly structure, as disclosed in Patent Document 1, first engagement claws are formed on the front and rear ends of the decorative part (lid) along the front and rear ends, and left and right end portions are formed. The second engagement claw is formed along the left and right end portions, and the first engagement hole for the first engagement claw and the second engagement for the second engagement claw are formed in other parts (instrument panel). A rib is formed on both sides of the first engagement claw to determine the position in the left-right direction by fitting to the first engagement hole, and second on both sides of the second engagement claw. Ribs that are fitted in the engagement holes and determine the position in the front-rear direction are provided.
JP 2000-71919 A

According to the conventional structure, since the front, rear, left and right are respectively regulated by the first engagement claw and the second engagement claw, each claw must be engaged with each engagement hole at the time of assembly. In the case of a large item or a long part, it may become difficult to assemble the position error because it cannot absorb the position error.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an assembling structure of a decorative part that is easy to assemble even if it is a large or long part and has excellent assemblability.

The feature of the present invention is that
A decorative part assembly structure in which decorative parts are assembled to other parts,
A first engaging claw protruding from the back surface of the first wall of the decorative part;
A second engaging claw projectingly provided on the back surface of the second wall of the decorative part bent with respect to the first wall;
Forming the first engaged portion for engaging the first engaging claw and the second engaged portion for engaging the second engaging claw in the other parts;
The first engaged portion is configured as an engagement hole,
The length of the engaging hole in the direction corresponding to the protruding direction of the second engaging claw is set longer than the length of the first engaging claw in the direction corresponding to the protruding direction of the second engaging claw. ,
From the initial assembly state in which the second engaging claw is exposed to the second engaged portion from the outside of the second engaged portion, and the first engaging claw is inserted into the engaging hole. The position of the decorative part is changed in the protruding direction of the second engagement claw, and the first engagement claw is engaged with the engagement hole, and the second engagement claw is engaged with the second engaged portion. Configured as
Forming a claw guide surface on the inner peripheral surface of the engagement hole;
As the position of the decorative part is changed in the protruding direction of the second engaging claw from the initial assembly state, the claw guide surface guides the first engaging claw, and the second engaging claw protrudes. The position of the second engaging claw in a direction orthogonal to the direction is determined, and the second engaging claw starts to engage with the second engaged portion after this position is determined. . (Claim 1)

According to this configuration,
As the position of the decorative part is changed in the protruding direction of the second engaging claw from the initial assembly state, the claw guide surface guides the first engaging claw and is orthogonal to the protruding direction of the second engaging claw. Since the position of the second engaging claw is determined and the second engaging claw starts to engage with the second engaged portion after this position is determined, the position of the second engaging claw with respect to the second engaged portion Can be determined accurately. Therefore, it is possible to provide an assembling structure for decorative parts that is easy to assemble and excellent in assembling properties without being difficult to assemble even for large and long parts. (Claim 1)

In the present invention,
The decorative part is a tail end trim having an L-shaped cross section of an automobile,
The first wall is a front wall of the tail end trim;
The second wall is an upper wall of the tail end trim;
The other parts are the automotive lower trim,
The direction corresponding to the protruding direction of the second engaging claw is the vertical direction of the vehicle body,
The first engaging claws are provided at both left and right ends of the front wall of the tail end trim,
The second engaging claws are provided at both left and right ends of the upper wall of the tail end trim,
The engagement holes are respectively provided in the front wall of the quarter lower trim on the left side of the vehicle body and the front wall of the quarter lower trim on the right side of the vehicle body,
The second engaged portion is provided on the upper wall of the quarter lower trim on the left side of the vehicle body and on the upper wall of the quarter lower trim on the right side of the vehicle body,
If the claw guide surface is configured by forming a tapered surface located on the inner peripheral surface on the inner side in the vehicle width direction of the engagement hole and on the outer side in the vehicle width direction, the following effects can be achieved. . (Claim 2)

  As the position of the tail end trim is changed downward from the initial assembly state, a claw guide surface formed of a tapered surface guides the first engagement claw and protrudes from the back surface of the upper wall of the tail end trim. Since the position of the second engaging claw in the direction perpendicular to the protruding direction of the engaging claw, that is, the vehicle width direction is determined, and the second engaging claw starts to engage with the second engaged portion after this position is determined. The position of the second engaging claw with respect to the second engaged portion can be accurately determined. Therefore, it is possible to provide an assembling structure for decorative parts that is easy to assemble and excellent in assembling properties without being difficult to assemble even for large and long parts. (Claim 2)

In the present invention,
After the second engaging claw starts to engage with the second engaged portion, the guide of the first engaging claw by the tapered surface is released, and the second engaging claw is released to the second engaged portion. In the assembled state engaged with the mating portion, the inside of the engaging hole below the tapered surface is formed so that a gap is formed between the first engaging claw and the inner peripheral surface of the engaging hole. When the peripheral surface portion is positioned on the inner side in the vehicle width direction than the lower end of the tapered surface, the following action can be achieved. (Claim 3)

  In the assembled state in which the second engagement claw is engaged with the second engaged portion, a gap is formed between the first engagement claw and the inner peripheral surface of the engagement hole. The tail end trim, which is a long product in the direction, is heat-shrinked in the vehicle width direction after assembling, and even if the first engagement claw moves in the vehicle width direction, the first engagement claw is prevented from being deformed, damaged, or whitened. be able to. (Claim 3)

In the present invention,
With the quarter lower trim fixed to the vehicle body, the first engagement claw of the tail end trim is engaged with the engagement hole, and the second engagement claw is engaged with the second engaged portion. In this case, when the first engaging claw or the second engaging claw is engaged with the engaging hole or the second engaged portion, the quarter lower trim can be securely fixed in position. Thus, the engagement work can be easily performed, and the workability of the engagement work can be improved. (Claim 4)

In the present invention,
The engagement hole on the left side of the vehicle body, the second engaged portion, the first engagement claw, the second engagement claw, the engagement hole on the right side of the vehicle body, the second engaged portion, the first engagement claw, the first If the corresponding ones of the two engaging claws are formed in a symmetrical shape with respect to the left and right center of the vehicle body, the structure can be simplified and the manufacturing cost can be reduced. (Claim 5)

In the present invention,
When the width of the engagement hole on the guide start end side of the claw guide surface is set wider than the width of the engagement hole on the guide end side, when the first engagement claw is inserted into the engagement hole, It can be inserted into the wide part of the engagement hole. As a result, the first engagement claw can be easily inserted into the engagement hole, and the assembling property can be improved. (Claim 6)

According to the present invention,
It was possible to provide a structure for assembling decorative parts that are easy to assemble even for large and long parts and have excellent assemblability.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. 1 and 2 show an assembly structure of a tail end trim 1 (corresponding to a decorative part) that covers the lower end of an opening for an automobile back door and a pair of left and right quarter lower trims 2 that cover left and right side walls of the opening. It is shown.

  The quarter lower trim 2 is formed of a resin material, and has a projecting portion 3 having an L-shaped cross section that projects inward in the vehicle width direction W1 (left and right center side of the vehicle body in the vehicle width direction W) at the lower end portion. The protruding end portion 43 (see FIG. 2) of the portion 3 is formed in a stepped shape that is lowered by one step from the main body of the quarter lower trim 2. The structure of the protruding end 43 of the protruding portion 3 will be described in detail later.

  As shown in FIG. 4B, the tail end trim 1 is made of a resin material and has an L-shaped cross section. As shown in FIGS. 1 and 2, the right end 1B is a protruding end of the right quarter lower trim 2. The left end portion 1A is connected to the projecting end portion 43 of the left quarter lower trim 2 so as to overlap from the upper side and the vehicle front side Fr. A plurality of mounting seats 25 formed on the front wall 11 (corresponding to the first wall) of the tail end trim 1 are fixed to the front wall 28 of the vehicle body panel 4 (corresponding to the vehicle body) with a plurality of clips. As shown in FIG. 4B, an end 12B on the vehicle rear side of the upper wall 12 (corresponding to the second wall) bent with respect to the front wall 11 of the tail end trim 1 is bent downward and rearward. Inclined downward.

  Next, an assembly structure of the tail end trim 1 (an assembly structure for the vehicle body and the quarter lower trim 2) will be described. Since the assembly structure of the left end portion 1A and the assembly structure of the right end portion 1B of the tail end trim 1 are symmetrical (laterally symmetric) with respect to the lateral center of the vehicle body, the assembly structure of the right end portion 1B will be described as an example.

[Assembly structure of tail end trim 1]
As shown in FIGS. 2, 3, 4 (a) to 4 (c), a first lower portion of the front lower wall 11 of the tail end trim 1 with respect to the lower lower trim 2 is provided on the back surface of the corner portion on the right lower end side. An engaging claw 21 is projected. Further, a pair of front and rear second engagement claws 22 for the quarter lower trim 2 are provided on the back surface of the right end portion of the upper wall 12 of the tail end trim 1, and the vehicle width direction inner side W <b> 1 from the second engagement claws 22. A plurality of sets of third engagement claws 23 and fourth engagement claws 24 for the upper wall 13 of the vehicle body panel 4 are provided on the rear surface of the upper wall 12 of the tail end trim 1. The vehicle body panel 4 is formed in an annular shape having a rectangular cross section. In FIG. 2, reference numeral 27 denotes a reinforcing L-shaped rib, which is provided across the back surface of the front wall 11 and the back surface of the upper wall 12 of the tail end trim 1.

[Structure of the first engaging claw 21]
The first engaging claw 21 includes a short first protruding piece 21A that protrudes from the front wall 11 of the tail end trim 1 toward the vehicle rear side, and a slightly longer second extending from the protruding end of the first protruding piece 21A. A rib 21C is provided at the center in the width direction of the inner surfaces of the first and second projecting pieces 21A, 21B. The first engagement claw 21 is inserted and engaged with a first engagement hole 31 (corresponding to a first engaged portion) formed in the front wall 14 of the projecting end portion 43 of the quarter lower trim 2. .

[Structure of second engaging claw 22]
Of the pair of front and rear second engaging claws 22, the second engaging claw 22 on the vehicle front side Fr includes a vertically long rectangular protruding piece 22 </ b> A that protrudes downward from the back surface of the upper wall 12 of the tail end trim 1. The projecting piece 22 </ b> A is composed of a convex portion 22 </ b> B having a triangular cross section that projects from the surface on the vehicle rear side to the vehicle rear side. Further, the second engagement claw 22 on the vehicle rear side includes a projecting piece 22A projecting downward from the back surface of the upper wall 12 of the tail end trim 1, and a vehicle front side Fr from the surface of the projecting piece 22A on the vehicle front side Fr. And a convex portion 22B having a triangular cross-section projecting in the shape of a triangle. That is, the convex portions 22B of the pair of front and rear second engaging claws 22 face each other in the vehicle front-rear direction. The second engaging claw 22 engages with a second engaged portion 32 formed on the upper wall 15 of the protruding end 43 of the quarter lower trim 2. The second engaged portion 32 will be described later. As shown in FIG. 4A, a notch 29 for avoiding interference with the upper wall 15 of the protruding end 43 is formed at the lower end of the protruding piece 22A.

[Structures of third engagement claw 23 and fourth engagement claw 24]
As shown in FIGS. 3 and 5, the third engaging claw 23 includes a hollow projecting body 23 </ b> A projecting downward from the lower surface of the box-shaped base 40 provided on the back surface of the upper wall 12 of the tail end trim 1, and the hollow. The projecting body 23A includes a front-side Fr of the vehicle 23A and a pair of front and rear support pieces 23B positioned on the rear side of the vehicle. (See also FIG. 2). The hollow projecting body 23A has a middle portion in the vertical direction that bulges in the vehicle front-rear direction. Further, both support pieces 23B are inclined so that the distance between them is increased toward the lower end side, and the lower end portion bent to the vehicle front side Fr or the vehicle rear side of the support piece 23B comes into contact with the upper wall 13 of the vehicle body panel 4. Yes. The fourth engagement claw 24 is formed in an H-shaped cross section and protrudes downward from the lower surface of the pedestal 40. The bulging portions 24A (see FIG. 3) on both end sides in the vehicle width direction are third engagement holes. 33 is engaged.

[Structure of the protruding end portion 43 of the quarter lower trim 2 and the second engaged portion 32]
As shown in FIG. 2 and FIG. 4B, the upper plate 51 is supported on the stepped upper wall 15 of the protruding end portion 43 via a pair of front and rear legs 50, and the vehicle starts from the upper end of the legs 50. The front end portion of the upper plate 51 projecting to the front side Fr is configured as a second engaged portion 32 with respect to the front second engaging claw 22, and the upper plate 51 projecting from the upper end portion of the leg portion 50 to the vehicle rear side. The rear end portion is configured as a second engaged portion 32 with respect to the second engaging claw 22 on the rear side. A through hole 52 for inserting a lower end portion of the second engagement claw 22 is formed in the upper wall portion located on the vehicle front side Fr of the leg portion 50 and the upper wall portion located on the vehicle rear side. . An end portion 15B of the upper wall 15 on the vehicle rear side is bent downward and is inclined downward to the rear. The end portion 15B of the vehicle rear side is inclined downward to the rear of the upper wall 12 of the tail end trim 1. The end portion 12B on the vehicle rear side overlaps from above.

[Structure of the first engagement hole 31]
As shown in FIGS. 4A to 4C, a direction corresponding to the protruding direction of the second engaging claw 22 (a direction parallel to the protruding direction of the second engaging claw 22 and the vertical direction of the vehicle body. The length of the first engagement hole 31 of Z) is set longer than the length of the first engagement claw 21 in the direction corresponding to the protruding direction of the second engagement claw 22. Then, the second engaging claw 22 faces the second engaged portion 32 from the outside of the second engaged portion 32, and the third engaging claw 23 and the fourth engaging claw 24 are moved to the third engaging hole 33. The tail end trim 1 is moved from the outside to the third engagement hole 33 and the tail engagement trim 21 is inserted into the first engagement hole 31 from the initial assembly state (see FIG. 6). The first engaging claw 21 is changed to the first engaging hole 31, the second engaging claw 22 is changed to the second engaged portion 32, and the third engaging claw 23 is changed in the protruding direction (downward). The fourth engaging claw 24 is configured to engage with the third engaging hole 33, respectively.

  As shown in FIG. 4C, a claw guide surface 31 </ b> N <b> 1 is formed on the inner peripheral surface 31 </ b> N of the first engagement hole 31. Specifically, the claw guide surface 31N1 is configured by forming a tapered surface positioned on the outer side W2 in the vehicle width direction on the inner peripheral surface 31N of the first engagement hole 31 on the inner side W1 in the vehicle width direction. Then, as the position of the tail end trim 1 is changed from the initial assembly state (see FIG. 6) to the quarter lower trim 2 side (downward in the protruding direction of the second engagement claw 22), the claw guide surface 31N1 (tapered) Surface) guides the side of the first engaging claw 21 (at this time, the pair of left and right first engaging claws 21 are elastically deformed to increase the distance between them), and the protruding direction of the second engaging claw 22 The position of the second engagement claw 22 in the direction perpendicular to the vehicle width direction W (the position of the second engagement claw 22 with respect to the second engaged portion 32) is determined, and the second engagement claw is determined after this position is determined. 22 is configured to start engaging with the second engaged portion 32, and the third engaging claw 23 and the fourth engaging claw 24 start to engage with the third engaging hole 33.

  In addition, after the second engagement claw 22 to the fourth engagement claw 24 start to engage with the second engaged portion 32 and the third engagement hole 33, the first engagement claw 21 by the claw guide surface 31N1. When the guide is released and the second engaging claw 22 to the fourth engaging claw 24 are engaged with the second engaged portion 32 and the third engaging hole 33, the first engaging claw 21 and the first engaging claw 21 The inner peripheral surface portion 31N2 of the first engaging hole 31 below the claw guide surface 31N1 (tapered surface) is formed so as to form a gap S between the inner peripheral surface 31N of the engaging hole 31 and the claw guide. It is located on the inner side W1 in the vehicle width direction from the lower end of the surface 31N1 (tapered surface), and is formed on a surface along the vertical direction.

  Then, the inner peripheral surface portion on the upper side of the first engagement hole 31 is formed as an inclined surface positioned higher toward the vehicle width direction inner side W1, and the inner peripheral surface portion of the vehicle width direction outer side W2 is formed on a surface along the vertical direction. The lower inner peripheral surface portion is formed on a surface along the vehicle width direction W, and the width D1 of the first engagement hole 31 on the guide start end side (upper end side) of the claw guide surface 31N1 is set to the guide end side (lower end side). ) Of the first engagement hole 31 is set wider than the width D2.

  When the tail end trim 1 is assembled to the quarter lower trim 2, the quarter lower trim 2 is first attached and fixed to the vehicle body panel 4, and then the first engagement claws 21 to the fourth engagement claws 24 are fitted to the first engagement holes. 31, the second engaged portion 32, and the third engagement hole 33 are engaged, and thereafter, a plurality of mounting seats 25 formed on the front wall 11 of the tail end trim 1 are attached to the front wall 28 of the vehicle body panel 4. Secure with multiple clips. As described above, the first lower engaging claw 21 of the tail end trim 1 is engaged with the first engaging hole 31 while the quarter lower trim 2 is fixed to the vehicle body panel 4 and the second engaging claw 22 is 2 It is engaged with the engaged portion 32.

As described above, the assembly structure of the left end portion 1A and the assembly structure of the right end portion 1B of the tail end trim 1 are symmetrical (laterally symmetric) with respect to the lateral center of the vehicle body.
That is, the first engagement claw 21 is provided at each of the left and right ends of the front wall 11 of the tail end trim 1, and the second engagement claw 22 to the fourth engagement claw 24 are provided at both left and right ends of the upper wall 12 of the tail end trim 1. The first engagement holes 31 are respectively formed in the front wall 14 of the protruding end 43 of the quarter lower trim 2 on the left side of the vehicle body and the front wall 14 of the protruding end 43 of the quarter lower trim 2 on the right side of the vehicle body. A second engaged portion 32 is provided on each of the upper wall 15 of the protruding end portion 43 of the quarter lower trim 2 on the left side of the vehicle body and the upper wall 15 of the protruding end portion 43 of the quarter lower trim 2 on the right side of the vehicle body. Three engagement holes 33 are provided at both left and right ends of the upper wall 13 of the vehicle body panel 4.

  Further, the first engagement hole 31, the second engaged portion 32, the third engagement hole 33, the first engagement claw 21 to the fourth engagement claw 24 on the left side of the vehicle body, and the first engagement hole on the right side of the vehicle body. 31, the second engaged portion 32, the third engagement hole 33, and the first engagement claw 21 to the fourth engagement claw 24 are formed in a symmetrical shape with respect to the left and right center of the vehicle body. It is.

A perspective view showing the assembly structure of the tail end trim and the quarter lower trim Exploded perspective view showing the assembly structure of the right end of the tail end trim and the protruding end of the quarter lower trim Front view showing the assembly structure of the right end of the tail end trim and the protruding end of the quarter lower trim 4A is a cross-sectional view taken along the line C-C in FIG. 4B. FIG. 4B is a cross-sectional view taken along the line A-A in FIG. (A) is EE sectional drawing of FIG. 3 (a) is DD sectional drawing of FIG. The figure which shows the assembly | attachment initial state which made the 2nd engagement nail face the 2nd to-be-engaged part from the outer side of the 2nd to-be-engaged part, and was inserting the 1st engagement nail | claw into the engagement hole.

Explanation of symbols

1 Decorative parts (tail end trim)
2 Other parts (quater lower trim)
11 First wall (front wall of tail end trim)
12 Second wall (upper wall of tail end trim)
14 Front Wall of Quarter Lower Trim 15 Upper Wall of Quarter Lower Trim 21 First Engaging Claw 22 Second Engaging Claw 31 First Engagement Part (engagement hole)
31N Inner peripheral surface of the engagement hole 31N1 Claw guide surface (tapered surface)
31N2 Inner peripheral surface portion 32 of the engagement hole 2nd engaged portion D1 width of the engagement hole on the guide start end side D2 width of the engagement hole on the guide end side S gap W perpendicular to the protruding direction of the second engagement claw Direction (vehicle width direction)
W1 Vehicle width direction inside Z Vertical direction of vehicle body

Claims (6)

A decorative part assembly structure in which decorative parts are assembled to other parts,
A first engaging claw protruding from the back surface of the first wall of the decorative part;
A second engaging claw projectingly provided on the back surface of the second wall of the decorative part bent with respect to the first wall;
Forming the first engaged portion for engaging the first engaging claw and the second engaged portion for engaging the second engaging claw in the other parts;
The first engaged portion is configured as an engagement hole,
The length of the engaging hole in the direction corresponding to the protruding direction of the second engaging claw is set longer than the length of the first engaging claw in the direction corresponding to the protruding direction of the second engaging claw. ,
From the initial assembly state in which the second engaging claw is exposed to the second engaged portion from the outside of the second engaged portion, and the first engaging claw is inserted into the engaging hole. The position of the decorative part is changed in the protruding direction of the second engagement claw, and the first engagement claw is engaged with the engagement hole, and the second engagement claw is engaged with the second engaged portion. Configured as
Forming a claw guide surface on the inner peripheral surface of the engagement hole;
As the position of the decorative part is changed in the protruding direction of the second engaging claw from the initial assembly state, the claw guide surface guides the first engaging claw, and the second engaging claw protrudes. A position of the second engaging claw in a direction orthogonal to the direction, and a decorative part configured to start engaging the second engaged claw with the second engaged portion after the position is determined. Assembly structure. The decorative part is a tail end trim having an L-shaped cross section of an automobile,
The first wall is a front wall of the tail end trim;
The second wall is an upper wall of the tail end trim;
The other parts are the automotive lower trim,
The direction corresponding to the protruding direction of the second engaging claw is the vertical direction of the vehicle body,
The first engaging claws are provided at both left and right ends of the front wall of the tail end trim,
The second engaging claws are provided at both left and right ends of the upper wall of the tail end trim,
The engagement holes are respectively provided in the front wall of the quarter lower trim on the left side of the vehicle body and the front wall of the quarter lower trim on the right side of the vehicle body,
The second engaged portion is provided on the upper wall of the quarter lower trim on the left side of the vehicle body and on the upper wall of the quarter lower trim on the right side of the vehicle body,
2. The decorative part assembling structure according to claim 1, wherein a taper surface positioned on the outer side in the vehicle width direction is formed on the inner peripheral surface on the inner side in the vehicle width direction of the engagement hole to constitute the claw guide surface. .   After the second engaging claw starts to engage with the second engaged portion, the guide of the first engaging claw by the tapered surface is released, and the second engaging claw is released to the second engaged portion. In the assembled state engaged with the mating portion, the inside of the engaging hole below the tapered surface is formed so that a gap is formed between the first engaging claw and the inner peripheral surface of the engaging hole. The decorative part assembling structure according to claim 2, wherein the peripheral surface portion is positioned on the inner side in the vehicle width direction than the lower end of the tapered surface.   With the quarter lower trim fixed to the vehicle body, the first engagement claw of the tail end trim is engaged with the engagement hole, and the second engagement claw is engaged with the second engaged portion. The assembling structure for a decorative part according to claim 2 or 3.   The engagement hole on the left side of the vehicle body, the second engaged portion, the first engagement claw, the second engagement claw, the engagement hole on the right side of the vehicle body, the second engaged portion, the first engagement claw, the first The structure for assembling a decorative part according to any one of claims 2 to 4, wherein the corresponding ones of the two engaging claws are formed in a symmetrical shape with respect to the lateral center of the vehicle body.   The assembly of the decorative part according to any one of claims 1 to 5, wherein a width of the engagement hole on the guide start end side of the claw guide surface is set wider than a width of the engagement hole on the guide end side. Construction.

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