KR100440050B1 - Fitting structure and manufacturing method of mounting member - Google Patents

Abstract

(Problem) Provided is a method of manufacturing a labeling member that can be molded at low cost with an attachment structure and a simple mold structure of a labeling member that is easily attached to an inner panel.

(Solution means) The attachment member 18 is provided with a mounting pedestal 26 on which the clip 14 is mounted and a locking portion 28 which is engaged with and fixed to the caught piece 20. A projection 24 is formed in the caught piece 20, and an elastic piece 32 having a projection 34 engaged with the projection 24 is formed in the locking portion 28. When the elastic piece 32 presses the attachment member 18 from the upper side of the caught piece 20, the elastic piece 32 is bent outwardly by the protrusions 24, and after that, the free end reaches the recess 22. When the projection 24 and the projection 34 are engaged with each other, the locking portion 28 is fixed to the caught piece 20. Thus, the attachment member 18 is attached to the door trim 16 via the caught piece 20 and the engaging portion 28. In this way, the attachment member 18 can be fixed to the door trim 16 by the clamping piece 20 only by the operation of press-fitting the attachment member 18 from above. good.

Description

FITTING STRUCTURE AND MANUFACTURING METHOD OF MOUNTING MEMBER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a marking member attached to an inner panel of an automobile and a method of manufacturing the marking member.

Conventionally, when attaching a door trim as an interior member or an exterior member to an inner panel of an automobile, first, resin clips are attached to a plurality of mounting pedestals formed at predetermined positions of the door trim, respectively.

On the other hand, the inner panel is provided with a mounting hole to which the clip is mounted. When the door trim is pressed while the door trim is positioned at a predetermined position of the inner panel, the clip mounted on the mounting base of the door trim is attached to the inner panel. By being fitted into the mounting hole, the door trim is attached to the inner panel through the clip.

As shown in FIG. 7, the mounting pedestal 100 is integrally formed with the door trim 102.

On the other hand, at the one end side of the clip 104, a substantially conical locking portion 106 is formed, and is fitted into the mounting hole of the inner panel (not shown). Moreover, the head part 108 is formed in the other end side of the clip 104. As shown in FIG. In the head 108, a disc 110 and a disc 112 are formed at predetermined intervals, and a dovetail groove formed at an upper end of the mounting pedestal 100 between the disc 110 and the disc 112. The clip 104 is attached to the mounting pedestal 100 by the edge portion of the 114 being inserted and supported.

Here, since the edge portion of the dovetail groove 114 sandwiched between and supported by the disc 110 and the disc 112 is a so-called undercut portion on the mold structure, the undercut portion is formed during the molding of the door trim 102. It is formed by inserting an insert for the insert and sliding it at the time of removing the mold, but the mold structure of the door trim 102 becomes complicated because the plurality of mounting pedestals 100 are arranged in the door trim 102, In addition, the mold cost becomes expensive.

In addition, when the mold structure becomes complicated, the door trim and the mounting pedestal may be separately molded, but in this case, since the mounting pedestal is fixed to the door trim by bonding or welding after molding, an additional assembly process is increased. The cost rises.

The present invention has been made in view of the above-described fact, and an object thereof is to provide a method of manufacturing a labeling member that can be molded at low cost with a simple mold structure and an attachment structure of a labeling member that is easy to attach to an inner panel.

1 is an exploded perspective view showing an attachment structure of a door trim and an inner panel according to the present embodiment;

2 is an exploded perspective view showing the attachment structure of the door trim according to the present embodiment.

3 is a cross-sectional view showing a state before engaging the engaging portion in the engaging portion in the attachment structure of the door trim according to the present embodiment.

4 is a cross-sectional view showing a state in which the engaging portion is engaged with the caught portion in the attachment structure of the door trim according to the present embodiment.

5 is a cross-sectional view showing a state in which the engaging portion is engaged with the engaging portion in the attachment structure of the door trim according to the present embodiment.

6 is a cross-sectional view showing a state in which a clip is attached to an inner panel in the attachment structure of the door trim according to the present embodiment.

Figure 7 is an exploded perspective view showing the attachment structure of a conventional door trim

Explanation of symbols on the main parts of the drawings

10-Inner Panel (plate) 14-Clip

16-Door trim (marking member) 18-Attachment member

20-caught piece (pickled part) 22-recessed part (undercut part)

24-Dowel (Undercut) 28-Hanging

32-elastic piece 34-protrusion

40-Abutting 56-Dovetail Home

In the invention according to claim 1, a mounting hole is formed in the plate, and a clip is attachable to the mounting hole. In addition, the plate member is attachable to the plate member, and the caught member is integrally molded in a standing state. An undercut portion is formed in the caught portion, and the attachable member to which the clip is mountable is engaged and fixed to the caught portion.

Therefore, the marked member can be attached to the plate through the caught portion, the attachment member, and the clip. By using the attachment member in this way, since the clip does not need to be mounted directly on the caught portion of the cover member, it is not necessary to make the cover member have a shape in which the clip can be attached, thus simplifying the mold structure of the cover member.

In addition, by forming an undercut portion in the caught portion, the attachment member can be engaged and fixed to the caught portion, and therefore, it is easy to assemble since it is not necessary to fix the attachment member to the marked member by adhesion or the like.

In the invention according to claim 2, the engaging member is provided with a locking portion, and the locking portion is fixed to the mark member through the locking portion by being pushed in from the upper side of the caught portion and engaging with the undercut portion. In addition, a dovetail groove is formed in the attachment member, and the head portion of the clip slides and fits in a direction orthogonal to the mounting direction.

Thus, since the engaging portion is engaged with the undercut portion only by the operation of pressing the attaching member from the upper side, the attaching member can be fixed to the marked member through the caught portion, so that the attachment is simple and workability is good.

Therefore, as compared with the case where the attachment member is slid in the right or left direction and fixed to the cover member through the caught portion, for example, the work efficiency is good because it can be fixed only by the press-in operation.

In the invention according to claim 3, a cutout portion is formed in the engaging portion to form an elastically deformable elastic piece, and a protrusion engaged with the undercut portion is formed on the free end side of the elastic piece.

For example, when the undercut portion is composed of a recess formed on the tip side of the caught portion and a protrusion formed on the upper side (the tip of the caught portion), the elastic piece is bent outwardly by the protrusion when the catch portion is pushed in from the upper side. When the free end of the elastic piece reaches the concave portion, the elastic piece is restored so that the protrusion and the protrusion are engaged.

In the invention according to claim 4, a wall surrounding the caught portion is formed in the engaging portion, and an abutment piece is formed at the lower end of the wall so that the protrusion is pressed against the undercut portion when the protrusion is engaged with the undercut portion. Doing.

As a result, there is no fluctuation in the vertical direction between the undercut portion and the projection, and the engagement between the undercut portion and the projection is not released by maintaining the engagement state between the undercut portion and the projection.

In the invention according to claim 5, the insert forming the undercut portion is provided, and the insert is rotated and taken out when the mold is separated at the time of molding the cover member. Therefore, compared with the case where the insert is slid out, the mold structure can be simplified and the mold production cost can be reduced.

Embodiment of the Invention

First, the attachment structure of the door trim as a cover member which concerns on embodiment of this invention is outlined.

As shown in FIG. 1 and FIG. 6, a plurality of mounting holes 12 are formed in the inner panel 10 of the automobile, and the clips 14 can be attached to the mounting holes 12. On the other hand, the attachment member 18 is fixable to the door trim 16, and the clip 14 is attachable.

When the attachment member 18 is fixed to the door trim 16 in the state in which the clip 14 is attached to the attachment member 18, the door trim 16 is pressed against the inner panel 10 to attach the attachment member ( 18) and clip 14 attach door trim 16 to inner panel 10.

Here, the position of the clip 14 attached to the door trim 16 via the attachment member 18 and the position of the mounting hole 12 formed in the inner panel 10 are positioned so as to correspond in advance.

Subsequently, the attachment structure of the door trim described above will be described in detail.

As shown in FIG.2 and FIG.3, the door trim 16 is formed in the standing-up state of one pair of caught pieces 20. FIG. The recessed part 22 is formed in the outer side of this caught piece 20 along the width direction, and the protrusion 24 is formed in the front-end | tip part.

Here, in the mold structure of the door trim 16, the recessed part 22 and the protrusion 24 of the to-be-engaged piece 20 are what are called undercut parts, and the insert which is not shown in figure is used in order to form this undercut part, This insert is rotated and pulled out.

Therefore, compared with the case where the insert is slid out, the mold structure can be simplified and the mold production cost can be reduced. Of course, it is also possible to slide out the insert.

On the other hand, the attachment member 18 is largely divided into the mounting pedestal 26 and the locking portion 28, each forming a substantially footnote shape, the locking portion 28 is located below the mounting pedestal 26. It is engaged with the caught piece 20 to be fixed.

The engaging portion 28 is formed with a wall 28A and a wall 28B facing each other, so as to surround the caught piece 20 inserted into the space formed by these walls 28A and 28B. It is. An approximately 30-shaped cutout portion 30 is formed in the wall 28A facing the caught piece 20, and the cut-out portion 30 is a letter-type elastically deformable elastic piece supported by the lower end side. 32 is formed.

A protrusion 34 is formed inside the elastic piece 32 to protrude inward as it moves toward the free end side, and a partition parallel to the elastic piece 32 is provided between the elastic piece 32 and the elastic piece 32. The plate 36 is formed.

On both sides of the partition plate 36, a pair of abutting portions 38 protrude along the longitudinal direction so as to face both ends of the elastic piece 32 in the width direction. The separation distance W1 between the tip end of the abutting portion 38 (that is, the front side and the back side of the partition plate 36) is approximately equal to the separation distance W2 between the inner surfaces of the caught piece 20. .

Therefore, when the engaging portion 28 is engaged with and fixed to the caught piece 20, the inner surface of the caught piece 20 is brought into contact with the abutting portion 38 and slides to engage the caught piece 20. ), The separation distance W2 between the inner surfaces of the caught piece 20 is kept constant without elastic deformation.

On the other hand, the separation distance W3 between the inner surfaces of the wall 28A is substantially equal to the separation distance W4 between the distal end portion of the protrusion 24 (that is, the same surface as the outer surface of the caught piece 20). Here, the corners of the protrusions 24 are chamfered, and the wall body 28A is guided when the caught piece 20 is inserted into the space formed by the walls 28A and 28B.

When the wall portions 28A and 28B of the locking portion 28 move the locking portion 28 downward in a state of enclosing the protrusions 24 of the caught piece 20, the elastic pieces 32 formed on the wall 28A are formed. Protrusions 34) abut the protrusions 24, and as shown in FIG. 4, the elastic pieces 32 are bent to the outside by the protrusions 24, and then the elastic pieces 32 are opened. When the free end of the rod reaches the concave portion 22, as shown in Fig. 5, the elastic piece 32 is restored so that the protrusions 24 and the protrusions 34 engage with each other.

On the other hand, the contact piece 40 is formed in the lower end part of the wall 28B. The contact piece 40 is secured by the attachment member 18 to the door trim 16 because the projection 34 of the elastic piece 32 is engaged with the protrusion 24 of the caught piece 20. At this time, the attachment member 18 is held in the direction to be spaced apart from the door trim 16 so that the projection 34 is pressed against the protrusion 24.

As a result, there is no fluctuation in the vertical direction between the protrusions 24 and the protrusions 34, and the protrusions 24 and the protrusions 34 are maintained by maintaining the engagement state of the protrusions 24 and the protrusions 34. As shown in FIG. ) Is not released.

On the other hand, as shown in FIG. 2 and FIG. 3, the clip 14 is attachable to the mounting pedestal 26 of the attachment member 18. As shown in FIG. The clip 14 is molded from a synthetic resin, and a mounting portion 66 having a substantially conical shape is formed at one end of the clip 14. A cylindrical head 48 is formed on the other end side of the clip 14, and discs 42, 44 and 46 are arranged at predetermined intervals on the head 48, respectively.

The hollow part 50 is formed in the mounting pedestal 26 which comprises substantially square shape, This hollow part 50 is enclosed by the three walls 26A and the upper surface 54. As shown in FIG. A dovetail groove 56 is formed on the upper surface 54, and the width of the inlet portion 58 of the dovetail groove 56 is slightly smaller than the outer diameter of the head portion 48 of the clip 14. have. Accordingly, when the head 48 of the clip 14 is pushed in and passed through the inlet 58, the clip 14 does not unnecessarily come out of the dovetail groove 56.

In addition, a guide surface 62 is formed at the inlet portion 58 of the dovetail groove 56, and the disc 42 is inserted when the head 48 of the clip 14 is inserted into the dovetail groove 56. To guide you.

In addition, the thickness of the upper surface 54 is substantially equal to the separation distance between the original plate 42 and the original plate 44. When the clip 14 is slid in a state where the original plate 44 is brought into contact with the upper surface 54, The disc 42 is guided by the guide surface 62 so that the edge portion of the dovetail groove 56 is fitted and supported by the disc 42 and the disc 44.

The inner side of the dovetail groove 56 is an arcuate hole 60, and the clearance between the head part 48 and the arcuate hole 60 is set so that the radius of curvature is larger than the radius of the head part 48. Forming. Therefore, even if the position of the clip 14 and the position of the mounting hole 12 are slightly shifted, the error can be absorbed by the clearance of the clip 14.

On the other hand, the mounting portion 66 formed on the other end side of the clip 14 is composed of a plurality of ribs 64 having a constant thickness, and prevents the shrinkage cavity of the mounting portion 66, and also the cross section of the rib 64 It is shaped like a cone. Moreover, the shaft diameter part 68 is formed in the base end part of the mounting part 66, and as shown in FIG. 6, it can be attached by fitting in the mounting hole 12 of the inner panel 10. FIG.

The inner diameter of the mounting hole 12 is slightly smaller than the maximum outer diameter of the mounting portion 66. Since the mounting portion 66 is composed of a plurality of ribs 64, it is easy to elastically deform, and the shaft diameter portion 68 is inserted into the mounting hole 12 by inserting the mounting portion 66 into the mounting hole 12. Is fitted.

Here, the disk 46 is thinner than the disks 42 and 44, and the disks 42 and 44 extend in a direction orthogonal to the axial direction of the head 48. The disc 46 is formed in a mortar shape toward the mounting portion 66 side. Therefore, when the mounting portion 66 is mounted in the mounting hole 12, the disc 46 is in close contact with the edge portion of the mounting hole 12.

Moreover, as shown in FIG. 2, the annular seal member 70 is attached to the disc 46, and when the mounting portion 66 is mounted in the mounting hole 12, the seal member 70 is mounted with a mounting hole ( Watertightness can be maintained by abutting the edge part of 12).

Subsequently, a method of attaching the door trim 16 to the inner panel 10 will be described.

First, as shown in FIG. 2, the clip 14 is attached to the mounting pedestal 26 of the attachment member 18. At this time, while the disc 44 is in contact with the upper surface 54 of the attachment member 18, the clip 14 is slid to insert the head 48 of the clip 14 into the dovetail groove 56. As a result, the edge portion of the dovetail groove 56 is sandwiched between the disc 42 and the disc 44 to be supported. Therefore, the clip 14 is attached to the mounting pedestal 26 as shown in FIG.

Next, the attachment member 18 is press-fitted on the upper side of the caught piece 20. At this time, as shown in FIG. 4, the elastic piece 32 of the engaging portion 28 of the attachment member 18 is bent outwardly by the protrusions 24 of the caught piece 20, and thereafter, FIG. 5. As shown in the figure, when the free end of the elastic piece 32 reaches the recess 22, the elastic piece 32 is restored to engage the protrusions 24 with the protrusions 34 so that the locking portion 28 is engaged. It is fixed to the caught piece 20. Thus, the attachment member 18 is fixed to the door trim 16 through the caught piece 20 and the engaging portion 28.

In this way, the elastic member 32 is engaged with the protrusions 24 only by the operation of pressing the attachment member 18 from the upper side, so that the attachment member 18 is door-trimmed 16 through the caught piece 20. ) It is easy to attach because it can be fixed and workability is good.

Therefore, compared with the case where the attachment member 18 is slid in the right or left direction, for example, to be attached to the door trim 16 through the caught piece 20, it can be fixed only by the press-in operation. Because the work efficiency is good.

In addition, since it is not necessary to attach the clip 14 directly to the door trim 16 by using the attachment member 18, the door trim 16 does not have to be shaped so that the clip 14 can be mounted, and thus the door trim 16. The mold structure of (16) can be simplified.

In addition, by forming the protrusions 24 on the caught pieces 20, the attachment members 18 can be engaged with and fixed to the caught pieces 20, so that the attachment members 18 are door trimmed by adhesion or the like. It is easy to assemble because there is no need to fix to (16).

Subsequently, the door trim 16 is attached to the inner panel 10 in a state where the clip 14 is attached to the door trim 16 through the attachment member 18 as described above. At this time, as shown in FIG. 1, the door trim 16 is positioned by aligning the clip 14 mounted on the mounting pedestal 26 of the attachment member 18 to the mounting hole 12 formed in the inner panel 10. And the clip 14 is press-fitted into the mounting hole 12 through the attachment member 18.

In the above-described embodiment, the pair of the caught pieces 20 are integrally molded to the door trim 16 in an upright state, but the present invention needs only to be able to easily fix the attachment member 18. Not limited to this, for example, one caught piece may be integrally molded in a standing state, and a protrusion may be formed on both surfaces of the caught piece.

Since the present invention has the above-described configuration, in the invention described in claim 1, since the clip does not need to be directly attached to the caught portion of the cover member by using the attachment member, it is necessary to make the cover member have a shape in which the clip can be attached. Therefore, the mold structure of the marking member can be simplified. In addition, by forming an undercut portion in the caught portion, the attachment member can be engaged and fixed to the caught portion, and therefore, it is easy to assemble since it is not necessary to fix the attachment member to the marked member by adhesion or the like.

In the invention according to Claims 2 and 3, since the engaging portion is engaged with the undercut portion only by the operation of pressing the attaching member from the upper side, the attaching member can be fixed to the marked member through the caught portion, so that the attachment is simple. Workability is good. Therefore, as compared with the case where the attachment member is slid in the right or left direction and fixed to the cover member through the caught portion, for example, the work efficiency is good because it can be fixed only by the press-in operation.

In the invention according to claim 4, the swing between the undercut portion and the projection is prevented from being moved up and down, and the engagement between the undercut portion and the projection is maintained so that the engagement between the undercut portion and the projection is not released.

In the invention described in claim 5, the mold structure can be simplified and the mold production cost can be reduced as compared with the case where the insert is slid out.

Claims (5)

A clip attachable to a mounting hole formed in the sheet material, A caught part formed integrally with the mark member attached to the plate member in a standing state and formed with an undercut part; And an attachment member to which the clip is mounted while being fixedly engaged with the caught portion. The method according to claim 1, The attachment member has a locking portion that is press-fitted from the upper side of the caught portion and engaged with the undercut portion, and a dovetail groove into which the head portion of the clip slides and fits in a direction perpendicular to the mounting direction. Attachment structure of the marking member. The method according to claim 2, By forming a notch in the engaging portion to form an elastically deformable elastic piece, An attachment structure for an emblem member, characterized in that a projection is engaged with the undercut portion at a free end side of the elastic piece. The method according to claim 3, Walls surrounding the caught portion is formed in the locking portion, And an abutment piece for contacting the marker member when the protrusion is engaged with the undercut portion at the lower end of the wall to press the protrusion against the undercut portion. As the caught part which is integrally molded in the standing member attached to the plate member in a standing state and the undercut part is formed, A method for manufacturing a marked member characterized in that the insert forming the undercut portion can be rotated and removed when the mold is separated.