JP3841407B2 - Resin parts mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a resin component mounting structure, and more particularly to a resin component mounting structure suitable for a door grip mounting structure provided in a door trim.
[0002]
[Prior art]
FIG. 11 shows an automotive door trim 1 mounted on the indoor side of a door panel. A door grip 2 is attached in a grip shape at a substantially central portion of the surface of the automotive door trim 1. And since a passenger | crew grasps this door grip 2 and opens and closes a door when opening and closing a door, it is requested | required that the attachment strength of the door grip 2 should be strengthened.
[0003]
As shown in FIG. 12, the door grip 2 is composed of a resin molded body composed of a front and back split body, that is, a split base body of a grip base 3 and a grip cover 4. Although not shown, A plurality of locking claws and a plurality of locking holes are provided corresponding to each other, and the door grip 2 is bonded and fixed by bonding both. Further, the grip base 3 of the door grip 2 is provided with mounting bosses 5 and 6 that project through the door trim 1 and are fixed to the vehicle body panel side corresponding to the upper and lower mounting portions.
[0004]
13 and 14, the mounting structure of the upper mounting boss 5 will be described, and in FIG. 15, the mounting structure of the lower mounting boss 6 will be described. First, as shown in FIG. 13, the upper mounting boss 5 has a flexible claw piece 5 a formed on the outer peripheral surface of the upper mounting boss 5. As shown in FIG. 14, the through hole of the door trim 1 is formed. When the upper mounting boss 5 is inserted into 1a, the claw piece 5a bends inward, and after inserting a predetermined size, the claw piece 5a returns to the base position so that the upper mounting boss 5 penetrates the door trim 1. Temporarily fix in the hole 1a. Thereafter, the grip base 3 is fixed to the vehicle body panel 7 by fastening the screws 8 through the screw holes 5b of the upper mounting bosses 5 to the vehicle body panel 7, and then the grip cover 3 to the grip base 3. By attaching and fixing 4, the attachment of the upper side of the door grip 2 is completed.
[0005]
Further, as shown in FIG. 15, the lower mounting structure of the door grip 2 is such that the lower mounting boss 6 of the grip base 3 is inserted into the through hole 1c of the door trim 1 through the armrest 1b, and the lower mounting boss 6 is inserted. The lower side of the door grip 2 is fixed to the vehicle body panel 7 by tightening and fixing the screws 8 to the vehicle body panel 7 from the screw holes 6a. The grip base 3 is fixed in advance to the armrest 1b attached to the door trim 1 with screws 1d.
[0006]
[Problems to be solved by the invention]
Thus, in the conventional mounting structure of the door grip 2, after the grip base 3 is temporarily assembled to the door trim 1, when the door trim 1 is assembled to the vehicle body panel 7, the grip base 3 is also screwed to the vehicle body panel 7 or the like. Then, a configuration is adopted in which the grip cover 4 is engaged with the grip base 3.
[0007]
However, in particular, in the upper mounting portion of the door grip 2, the hook trim 5a provided on the upper mounting boss 5 of the grip base 3 is used to engage and fix the door trim 1. Even after the claw piece 5a is inserted and fixed in the through hole 1a of the door trim 1, the claw piece 5a itself is easily bent inward in shape, and particularly when the door grip 2 is excessively drawn, the claw piece 5a Since it is easy to bend and the grip base 3 cannot be firmly assembled to the door trim 1, it has been pointed out that there is a tendency that rattling or the like is likely to occur between the two.
[0008]
Further, the grip cover 4 is joined to the grip base 3 by engaging action of engaging holes and engaging claws provided at a plurality of positions on the left and right edge portions. It is not fixed directly. This also contributes to a decrease in the mounting strength of the door grip 2.
[0009]
In addition, in the lower mounting portion of the door grip 2, there is a gap between the lower mounting boss 6 and the through hole 1c of the door trim 1, so that the lower mounting boss 6 is rattled or rolled. It is easy to do, and the secure attachment between the door trim 1 and the door grip 2 is also desired on the lower side of the door grip 2.
[0010]
The present invention has been made in view of such circumstances, and when applied to a structure for attaching a door grip to a door trim, the door grip can be firmly assembled to the door trim, and the occurrence of rattling or the like can be eliminated. It aims at providing the attachment structure of a resin component.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a resin part mounting structure for attaching a resin part to an interior trim, and the resin molded body on one side constituting the resin part penetrates the through hole of the interior trim. A mounting boss that is fixed to the vehicle body panel with a screw is formed, and a frame-like claw piece that is sandwiched between the opening and the outer peripheral slit and has increased flexibility is formed on the side surface of the mounting boss. After the resin molded body is engaged with the interior trim by the claw pieces, the other side resin molded body is bonded and fixed to the one side resin molded body, and the insertion hook provided on the upper end side of the resin molded body is attached. Insert the frame into the mounting boss and let the tip of the insertion hook face the outside through the opening to lock the frame-shaped claw piece. At the same time, attach the edge of the through hole of the interior trim with the insertion hook. by, for the interior trim Wherein the assembled collectively both of the resin molded body.
[0012]
Here, the resin component attached to the interior trim can be applied to a resin grip mounting structure such as a door grip attached to the door trim or a switch escutcheon panel attached to the armrest portion of the door trim.
[0013]
For example, when applied to a door grip attached to a door trim, the resin molded body on one side is a grip base, and the resin molded body on the other side is a grip cover bonded and fixed to the grip base. When the switch escutcheon panel is a resin molded body on one side, the resin molded body on the other side is an armrest pad.
[0014]
And according to this invention, when inserting the mounting boss formed in the resin molding on one side into the through hole of the interior trim, the frame-like claw piece is formed on the side surface of the mounting boss. Since the frame-like claw piece has increased flexibility, when the mounting boss is inserted into the through hole of the interior trim, the frame-like claw piece can be smoothly inserted using the flexibility of the frame-like claw piece.
[0015]
After that, if the insertion hook formed on the other side resin molding is inserted into the opening of the frame-shaped claw piece, the other side resin molding can be fixed to the interior trim via this insertion hook. The fitting hook locks the frame-like claw piece, and the frame-like claw piece does not bend and deform.
[0016]
Therefore, the frame-shaped claw piece does not bend and deform, the backlash does not occur in the mounting portion, and the other side resin molded body is also directly fixed to the interior trim via the insertion hook, Both resin moldings can be firmly assembled to the interior trim.
[0017]
In addition, as a modification, when a protrusion is provided on the back surface of the interior trim so as to contact the tip of the insertion hook, when an external force is applied to the resin molded body in the drop-off direction, the external force is applied to the insertion hook and the protrusion. And can reduce the load.
[0018]
Furthermore, as another embodiment of the present invention, a mounting boss formed on a resin molded body on one side constituting a resin part is inserted into a through hole of an interior trim, and the bottom surface of the mounting boss is used as a vehicle body panel. This is a mounting structure for resin parts that are fixed by screws or the like. The end of the interior trim is abutted against the outer peripheral surface of the mounting boss, and the entrainment terminal portion of the sheet-like material abuts on the outer peripheral surface of the mounting boss. It is characterized by.
[0019]
And according to this embodiment, since it is the structure that the end of the interior trim is abutted against the outer peripheral surface of the mounting boss formed on the resin molded body, there is no backlash, and in particular, the outer periphery of the mounting boss Generation of lower sounds can be prevented as much as possible by using a TPO (abbreviation for thermoplastic olefin) skin or a winding terminal portion of a cloth sheet such as cloth or non-woven fabric as the portion that comes into contact with the surface.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, as a preferred embodiment of a resin component mounting structure according to the present invention, an embodiment applied to a door grip attached to a door trim will be described in detail with reference to the accompanying drawings.
[0021]
1 is a front view showing an automobile door trim having a door grip, FIG. 2 is a side view showing a grip base of the door grip shown in FIG. 1, (b) an inner view, (c) a rear view, FIG. 1 shows a grip cover in the door grip shown in FIG. 1, (a) side view, (b) inner view, (c) front view, and FIGS. 4 and 5 are an upper mounting portion and a lower side of the door grip shown in FIG. It is each sectional drawing which shows an attaching part.
[0022]
FIGS. 6 to 9 are explanatory views showing a procedure for attaching the door grip shown in FIG. 1, and FIG. 10 is a cross-sectional view of a main part showing a modification of the upper attachment portion of the door grip.
[0023]
In FIG. 1, an automobile door trim 10 has an elbow on a door trim main body 11 formed by a mode press molding or injection molding of polypropylene resin (hereinafter referred to as PP) resin or PP resin mixed with talc into a required shape. An armrest 12 is attached substantially at the center so that it can be hung and rested.
[0024]
In addition, the speaker grill 14 is integrally formed when the door trim body 11 is formed, and although not shown in FIG. 1, a pocket back cover (reference numeral 15 in FIG. 5) is provided on the back side of the door pocket provided below the armrest 12. Is shown).
[0025]
By the way, the door grip 20 is attached to the surface of the door trim 10 shown in FIG. 1 like a handle. The feature of the present invention is that the upper attachment portion A and the lower attachment portion B of the door grip 20 are firmly attached. The feature is to secure the structure.
[0026]
Before describing the upper mounting portion A and the lower mounting portion B, the configurations of the grip base 30 and the grip cover 40 that constitute the door grip 20 will be described with reference to FIGS. FIGS. 2A and 2B show the structure of the grip base 30. (a) Side view of the grip base 30, (b) Inner view of the grip base 30 showing a surface to be attached to the grip cover 40, and (c) Panel mounting side. 4 is a rear view of the grip base 30. FIG.
[0027]
The grip base 30 is composed of a PP resin injection molded body mixed with talc, and the surface to be the product surface, that is, the portion excluding the joint surface with the grip cover 40 is covered with a skin 31 such as PVC resin. ing. The grip base 30 is integrally formed with upper and lower mounting bosses 32 and 33 (hereinafter referred to as an upper mounting boss 32 and a lower mounting boss 33), respectively. In order to temporarily fix the door trim 10 before being attached to the panel, trim mounting bosses 34a are provided in the vicinity of the upper mounting boss 32, and trim mounting bosses 34b and 34c are provided at two positions below the lower mounting boss 33. It is installed.
[0028]
Further, since the grip base 30 is gripped by a passenger when the door is opened and closed and a large load is applied, the grid-like ribs 35 are integrally formed on the inner surface to provide a strong rigidity, and FIG. As shown in FIG. 3, the locating recesses 36 are formed at two upper and lower portions, and in order to join the grip cover 40 shown in FIG. 37 is provided.
[0029]
By the way, this is one of the features of the present invention. In particular, in the upper mounting portion A of the door grip 20, in order to ensure strong mounting strength, the frame-shaped claw piece 38 is provided on the side surface of the upper mounting boss 32. Is formed. The detailed configuration and operational effects of the frame-shaped claw piece 38 will be described later.
[0030]
Next, the grip cover 40 that is bonded and fixed to the above-described grip base 30 is shown in FIG. (A) is a side view of the grip cover 40, (b) is an inner view of the grip cover 40 showing a surface to be mounted on the grip base 30, and (c) is a front view of the grip cover 40 serving as a product surface.
[0031]
The grip cover 40 is also composed of a PP resin injection-molded body mixed with talc, like the grip base 30, and a metal coating surface 41 is provided on the product surface in consideration of appearance design. As shown in FIGS. 3A and 3B, locating pins 42 to be inserted into the locating recesses 36 of the grip base 30 are projected at two locations on the upper and lower sides of the inner surface of the grip cover 40, and left and right edge portions. Is formed with a locking claw 43 that engages with the locking hole 37 of the grip base 30, and the locking claw 43 of the grip cover 40 is engaged with the locking hole 37 of the grip base 30. The grip cover 40 can be joined and fixed to the grip base 30 in a fitting manner by a one-touch operation.
[0032]
A feature of the present invention is that, in addition to forming the frame-like claw piece 38 on the side surface of the upper mounting boss 32 in the grip base 30, the grip cover 40 is also formed with an insertion hook 44 on the inner surface on the upper end side. It is to have done.
[0033]
Next, the state in which the door grip 20 is assembled to the door trim 10, that is, the upper mounting portion A and the lower mounting portion B of the door grip 20, will be described with reference to FIGS.
[0034]
With respect to the upper mounting portion A of the door grip 20, as shown in FIG. 4, the grip base 30 in the door grip 20 has an upper mounting boss 32 inserted into the through hole 11 a of the door trim body 11. A frame-like claw piece 38 provided on the boss 32 for use is engaged with the edge of the through hole 11 a of the door trim main body 11.
[0035]
On the other hand, the grip cover 40 in the door grip 20 is configured such that the engaging claw 43 of the grip cover 40 is engaged with the engaging hole 37 of the grip base 30 with respect to the grip base 30. In particular, as shown in FIG. 4, the insertion hook 44 provided on the upper end side of the grip cover 40 enters the inner surface of the grip base 30, and the tip 44a of the insertion hook 44 is the frame. The frame-shaped claw piece 38 is locked by facing the outside from the opening 38 a of the claw-shaped claw piece 38.
[0036]
Therefore, in this state, since the frame-like claw piece 38 is locked by the insertion hook 44, the frame-like claw piece 38 is not bent inward, and the grip base 30 is strong against the door trim main body 11. In addition, the upper end portion of the grip cover 40 is also directly and firmly fixed to the door trim body 11 via the insertion hook 44.
[0037]
As described above, the insertion hook 44 provided on the grip cover 40 has both a function of attaching to the door trim body 11 and a function of locking the frame-like claw piece 38 of the grip base 30, so that the door grip 20 has a function as compared with the conventional structure. Strong attachment at the upper attachment portion A can be expected. A screw 52 is fastened and fixed to the mounting hole 51 of the vehicle body panel 50 through a screw hole 32a of the upper mounting boss 32.
[0038]
Next, the configuration of the lower attachment portion B of the door grip 20 will be described with reference to FIG. The door trim main body 11 corresponding to the lower mounting portion B of the door grip 20 has an armrest 12 attached thereto, and a trim mounting boss 34b in the grip base 30 is fixed to the armrest 12 by screws 12a. The lower mounting boss 33 is inserted into the through hole 12 b of the armrest 12 and the through hole 11 b between the door trim main body 11 and the upper end of the pocket back cover 15, and is inserted into the mounting hole 51 of the vehicle body panel 50 via screws 52. Tightened and fixed.
[0039]
In particular, the terminal of the door trim main body 11 and the terminal of the pocket back cover 15 are abutted and joined to the outer peripheral surface of the lower mounting boss 33, so that there is no rattling due to vibration during traveling, etc. The entrainment terminal portion 13 a of the centering cross 13 is in contact with the outer peripheral surface of the mounting boss 33.
[0040]
Accordingly, the entrainment terminal portion 13a of the centering cloth 13 and the end of the pocket back cover 15 abut against the outer peripheral surface of the lower mounting boss 33, so that there is no backlash and the fabric contacts. In addition, a low sound is not generated even by vibrations during traveling, and a firm attachment structure is achieved for the lower attachment portion B of the door grip 20. The door trim body 11 may be made into a skin specification instead of the centering cloth 13, and the winding terminal portion of the skin such as a TPO skin may be brought into contact with the outer peripheral surface of the lower mounting boss 33.
[0041]
Next, an attachment work procedure for attaching the door grip 20 to the door trim 10 and the vehicle body panel 50 will be described with reference to FIGS.
[0042]
As shown in FIG. 6, the work of attaching the grip base 30 to the door trim 10 is performed first. As shown in FIG. 7, the upper mounting boss 32 of the grip base 30 has a frame-like claw piece on its side surface. 38 is formed, and the frame-shaped claw piece 38 is sandwiched between the hollowed portions of the rectangular opening 38a and the U-shaped outer peripheral slit 38b, so that the upper mounting boss 32 penetrates the door trim body 11. When inserting into the hole 11a, the frame-like claw piece 38 easily bends in the direction indicated by the arrow P in FIG. 6, so that the upper side of the grip base 30 can be easily inserted and attached to the door trim body 11.
[0043]
Further, the lower mounting boss 33 of the grip base 30 is inserted into the through hole 11 b formed by the door trim main body 11 and the pocket back cover 15 through the through hole 12 b of the armrest 12.
[0044]
8 shows a state where the grip base 30 is assembled to the door trim 10. At this time, although not shown in FIG. 8, the trim mounting boss 34a located in the vicinity of the upper mounting boss 32 of the grip base 30 is shown in FIG. The other trim mounting bosses 34b and 34c of the grip base 30 are fixed to the armrest 12 by screws 12a.
[0045]
Accordingly, the grip base 30 is fixed to the door trim 10 with screws at three trim mounting bosses 34 a, 34 b, 34 c, and the upper mounting boss 32 is attached to the through hole 11 a of the door trim main body 11 with a frame-like claw. The lower mounting boss 33 is fixedly engaged by the piece 38 and is held in contact with the winding terminal portion 13 a of the centering cross 13 in the door trim main body 11 or the end of the pocket back cover 15. As for the upper mounting boss 32, since the frame-like claw piece 38 is easily bent in this state, it cannot necessarily be said that the through-hole 11a is firmly fixed.
[0046]
Then, with the grip base 30 assembled to the door trim 10, the screws 52 are fastened and fixed to the mounting holes 51 of the vehicle body panel 50 through the screw holes 32 a and 33 a of the upper and lower mounting bosses 32 and 33. Is fixed to the vehicle body panel 50.
[0047]
Thereafter, as shown in FIG. 9, the grip cover 40 may be assembled and fixed to the grip base 30 assembled to the vehicle body panel 50 and the door trim 10. At this time, the grip cover 40 is joined and fixed by engaging the locking claws 43 provided at a plurality of positions on both the left and right sides with the locking holes 37 of the grip base 30, but in the present invention, the upper end of the grip cover 40 is fixed. Is inserted into the upper mounting boss 32 of the grip base 30 and inserted and fixed to the back side of the door trim body 11 as shown by the arrow in FIG. The frame-like claw piece 38 can be locked, and the mounting structure shown in FIG. 4 can be taken.
[0048]
That is, the insertion hook 44 provided at the upper end of the grip cover 40 has a lock function for suppressing the bending of the frame-shaped claw piece 38 provided on the grip base 30 in addition to the engaging function with respect to the door trim body 11. As described above, the mounting strength of the upper mounting portion A of the door grip 20 can be maintained stronger than in the past.
[0049]
As described above, if the present invention is applied to the door grip 20 mounting structure, the mounting strength of the upper mounting portion A and the lower mounting portion B is remarkably strengthened, although there is no change in the mounting man-hours. Even when the door grip 20 is frequently used at the time of opening and closing the door, there is no rattling and the operability at the time of opening and closing the door can be maintained well.
[0050]
FIG. 10 shows a modification of the door grip 20 according to the present invention. The same parts are denoted by the same reference numerals, and detailed description thereof is omitted. In this modification, a protrusion 16 is formed on the rear surface of the door trim main body 11 so as to abut on the front end 44a of the insertion hook 44 formed on the upper end of the grip cover 40 in the door grip 20.
[0051]
When an external force is applied in the direction F in FIG. 10, the external force F can be received by the insertion hook 44 and the protrusion 16, and an excessive load is not applied to the grip base 30. It can be made stronger.
[0052]
Although the embodiment described above is applied to the attachment structure of the door grip 20 attached to the door trim 10, it can be applied to a switch escutcheon panel or the like attached to the armrest of the door trim. When attaching the switch escutcheon panel to the armrest of the door trim, forming a hook for insertion on the adjacent armrest pad, and attaching the armrest pad to the door trim The frame-like claw piece provided on the switch escutcheon panel may be locked by this insertion hook. Therefore, the present invention can be applied to all resin parts attached to the interior trim.
[0053]
【The invention's effect】
As described above, the resin component mounting structure according to the present invention has the mounting boss that penetrates the through hole of the interior trim formed in the resin molded body, and is sandwiched between the opening and the outer peripheral slit on the side surface of the mounting boss. After forming a frame-like claw piece and using the flexibility of this frame-like claw piece to insert and fix the mounting boss into the through hole of the interior trim, the insertion hook formed on the other resin molded body Is inserted into the mounting boss and exposed to the outside through the opening surrounded by the frame-like claw piece, so that the frame-like claw piece is locked. It can be fixed, and there is an effect that it is possible to provide a reliable and rigid resin component mounting structure that eliminates any defects such as rattling.
[0054]
Furthermore, according to another aspect of the present invention, the mounting boss of the resin molded body is held against the end of the interior trim in the through hole of the interior trim to eliminate rattling, and at the edge of the through hole, a sheet-like object By bringing the winding terminal portion into contact with each other, it is possible to suppress the generation of lower sound, and there is an effect that it is possible to provide an ideal mounting structure that is free from rattling and does not generate lower sound. .
[Brief description of the drawings]
FIG. 1 is a front view showing an automobile door trim having a door grip according to an embodiment of the present invention.
2A is a side view, FIG. 2B is an inner view, and FIG. 2C is a rear view showing a configuration of a grip base in the door grip shown in FIG. 1;
3A is a side view, FIG. 3B is an inner view, and FIG. 3C is a front view showing a configuration of a grip cover in the door grip shown in FIG. 1;
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a cross-sectional view taken along the line V-V in FIG.
FIG. 6 is an explanatory view showing an attaching operation for attaching a grip base to a door trim in a door grip to which the present invention is applied.
FIG. 7 is an explanatory view showing a configuration of an upper mounting boss in a grip base of a door grip to which the present invention is applied.
FIG. 8 is an explanatory view showing an attaching operation for attaching a grip base attached to a door trim to a vehicle body panel.
FIG. 9 is an explanatory view showing an attaching operation for attaching a grip cover to a grip base attached to a door trim.
FIG. 10 is a cross-sectional view of an essential part showing a modified example of a door grip to which the present invention is applied.
FIG. 11 is a front view showing a conventional automobile door trim.
FIG. 12 is a configuration explanatory view showing a door grip attached to a conventional door trim.
FIG. 13 is a perspective view showing an upper mounting boss of a grip base in a conventional door grip.
FIG. 14 is an explanatory view showing an upper mounting portion of a conventional door grip.
FIG. 15 is an explanatory view showing a configuration of a lower mounting portion in a conventional door grip.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Automotive door trim 11 Door trim main body 11a, 11b Through-hole 12 Armrest 12b Through-hole 13 Crossing for inside 15 Pocket back cover 16 Protrusion 20 Door grip 30 Grip base 31 Skin 32 Upper mounting boss 33 Lower mounting boss 34a, 34b , 34c Trim mounting boss 35 Grid-shaped rib 36 Locating recess 37 Locking hole 38 Frame-shaped claw piece 38a Opening 38b Outer slit 40 Grip cover 41 Metal coating surface 42 Locating pin 43 Locking claw 44 Plug hook 50 Car body panel 51 Mounting hole A Upper mounting part B Lower mounting part

Claims (2)

The resin part (20) is attached to the interior trim (10) by attaching the resin part (20) to the interior trim (10) on one side of the resin molded body (30) constituting the resin part (20). A mounting boss (32) is formed through the through-hole (11a) and fixed to the vehicle body panel (50) with a screw. An opening (38a) and an outer peripheral slit are formed on the side surface of the mounting boss (32). After the frame-shaped claw piece (38) sandwiched between (38b) and having increased flexibility is formed, the resin-molded body (30) is engaged with the interior trim (10) by the frame-shaped claw piece (38). The resin molded body (40) on the other side is joined and fixed to the resin molded body (30) on one side, and the insertion hook (44) provided on the upper end side of the resin molded body (40) is used for mounting. Insert into the boss (32) and insert the tip of the hook (44) for insertion ( While frame-like pawls (38) and locked by to face a 4a) from the opening (38a) to the outside, the through holes (11a) edge of the interior trim in the insertion hook (44) (10) The resin component mounting structure is characterized in that both of the resin molded bodies (30, 40) are assembled together to the interior trim (10) by engaging the inner trim.   The resin part (20) is a door grip (20) attached to the surface of the door trim (10) in a handle shape. The door grip (20) is mounted in advance on the door trim (10) and is attached to the vehicle body panel (50). The grip base (30) fixed by screwing or the like, and a grip cover (40) fixedly fastened to the grip base (30) by a plurality of locking portions. Mounting structure for plastic parts.

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