JP4230018B2 - Structure of caps for mounting holes in automotive interior materials - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a cap for a mounting hole of an automobile interior material.
[0002]
[Prior art]
Automobile interior materials include those that are directly attached to a vehicle body structure such as an inner panel of a vehicle body, and those that are attached to the surface of another interior material, and many of them have attachment holes for the attachment. In general, the mounting hole is closed by a resin cap fitted after an automobile interior material is attached to an inner panel, another interior material, or the like by inserting a fixing component such as a bolt.
[0003]
FIG. 5 shows the structure of a conventional cap, and shows a case where the interior material 70 is attached to the surface of another interior material 70A. This conventional cap 60 has a cylindrical portion 62 formed on the back side of a plate-like surface portion 61 sized to block the mounting hole 80 of the interior material 70, and the cylindrical portion 62 is inserted into the mounting hole 80. The mounting hole 80 is closed by bringing the peripheral edge 63 of the surface portion 61 into contact with the stepped portion 86 at the outer end of the mounting hole 80. Reference numeral B is a bolt, and N is a nut.
[0004]
Further, the mounting hole 80 is not always circular, and is appropriately shaped such as a rectangle or an ellipse depending on the surface shape around the mounting hole 80 of the interior material 70, and the surface portion 61 of the cap 60 according to the mounting hole 80 shape. And the shape of the cylinder part 62 is also determined. Therefore, if the mounting hole 80 and the cap 60 need to be aligned, positioning concave portions and convex portions (not shown) are formed on the inner wall 82 of the mounting hole 80 and the outer peripheral surface 64 of the cylindrical portion 62 of the cap 60. When the cap 60 is fitted into the mounting hole 80, the position (orientation) of the cap 60 is determined by aligning the convex portion of the cylindrical portion 62 and the concave portion of the mounting hole 80.
[0005]
However, since the conventional cap 60 requires a place where the cap 60 is placed when the interior material 70 is attached, if the place is not available, the work is troublesome, or the cap 60 once placed is used as the interior material. There is a problem that the work is complicated because it is lost during the mounting work 70. Further, when the cap 60 is fitted into the mounting hole 80, the cap must be mounted while looking into the small mounting hole and aligning the positioning concave portion in the mounting hole 80 with the convex portion on the outer surface of the cap 60. The work is troublesome. In addition, even if this is done, it is not easy to accurately match the positioning recesses of the mounting hole 80 and the protrusions of the cap 60, so that the cap 60 is not accurately fitted and held in the mounting hole 80. It is often easy to come off.
[0006]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is a cap for a mounting hole of an automotive interior material that can be easily and accurately fitted into the mounting hole of the automotive interior material and that facilitates the mounting operation of the interior material itself. The structure is provided.
[0007]
[Means for Solving the Problems]
In a resin cap that is fitted into a mounting hole of an automobile interior material and covers the mounting hole, a locking claw and a tip become a locking portion at the edge of the cap body portion that is large enough to close the mounting hole A connecting piece,
A thin hinge portion is formed at a boundary position between the base of the connecting piece and the cap main body, and the connecting piece is engaged with an engaging hole formed on an inner wall of the mounting hole. When the cap is connected to the mounting hole of the automobile interior material by inserting the cap , the cap main body is formed in a bent state with respect to the main body at an angle where the mounting hole is opened. According to the structure of a cap for a mounting hole of an automobile interior material, the locking claw is locked to the inner wall of the mounting hole when the cap is fitted into the hole.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
1 is a cross-sectional view of the vicinity of the mounting hole in a state where the cap for the mounting hole according to one embodiment of the present invention is closed, FIG. 2 is a cross-sectional view of the vicinity of the mounting hole before the cap for the mounting hole is closed, and FIG. FIG. 4 is a perspective view of the mounting hole cap.
[0009]
1 and 2 show the structure of a mounting hole cap 10 for an automobile interior material according to one embodiment of the present invention. In this embodiment, another interior material 20 to which an armrest or the like (not shown) is fixed is attached to the surface of the interior material 20A such as a door trim, and the mounting hole 30 of the interior material 20 is closed with the mounting hole cap 10. .
[0010]
First, the interior material 20 will be described. The interior material 20 is made of a synthetic resin molded into a predetermined shape by a known injection molding or the like, and has a concave mounting hole 30 formed when the interior material 20 is molded. As shown in FIG. 3, a fixing part insertion hole 35 having an appropriate shape and size is provided on the bottom surface 31 of the mounting hole 30.
[0011]
A cap fixing hole 33 is formed in a part of the side inner wall 32 of the mounting hole 30. The fixing hole 33 is formed in a shape and size that can be engaged with a locking claw 12 of the mounting hole cap 10 described later. Further, the side inner wall 32 is provided with a cap locking hole 34 on the opposite side of the portion where the fixing hole 33 is provided. The locking hole 34 has such a shape and size that the locking portion 15 of the connecting piece 14 of the mounting hole cap 10 described later can be inserted and cannot be removed. These holes are preferably formed simultaneously with the molding of the interior material 20.
[0012]
The mounting hole cap 10 is made of a synthetic resin, in particular, a polypropylene having an appropriate flexibility, and includes a cap main body 11, a locking claw 12, and a connecting piece 14, as shown in FIG. The cap main body 11 is formed in a plate shape that is fitted in the mounting hole 30 on the surface of the interior material 20 and closes the mounting hole 30, and is formed in the same shape as the mounting hole 30.
[0013]
The locking claw 12 is provided integrally with the main body 11 at a part of the edge 13 of the cap main body 11. When the cap 10 is fitted into the mounting hole 30 of the interior material 20, the locking claw 12 is inserted and locked into the fixing hole 33 of the inner wall 32 of the mounting hole, and the cap body 11 is fitted into the mounting hole 30. It is for maintaining in a state, and is formed in a shape, size or the like that engages with the fixing hole 33. The locking claw 12 of this example is formed in a substantially “let” shape of katakana with a leg portion 12a that is formed to protrude on the back side of the cap body portion 11 and a tip claw portion 12b that is formed to protrude outward at the tip. It consists of things. The distance a between the surface of the cap main body 11 and the tip claw 12b is equal to the distance b (shown in FIG. 2) between the opening end of the mounting hole 30 and the fixing hole 33.
[0014]
The connecting piece 14 is provided integrally with the main body 11 at a position opposite to the locking claw 12 at the edge 13 of the cap main body 11. The leading end of the connecting piece 14 is a hook-like locking portion 15. When the leading end of the connecting piece 14 is inserted into the locking hole 34 on the inner wall of the mounting hole 30, the locking portion 15 is engaged. The attachment hole cap 10 is connected to the attachment hole 30 by being locked to the stop hole 34. The illustrated locking portion 15 is formed in a so-called ship's anchor shape that is narrow at the tip and enlarged at the rear, and the width c of the enlarged portion 15 a is the width d of the locking hole 34 of the mounting hole 30. The required amount is larger than. Therefore, if the locking part 15 is pushed into the locking hole 34 slightly forcibly, the enlarged part 15a is somewhat deformed at that time to allow passage of the locking hole 34 of the enlarged part 15a. The enlarged portion 15a is locked to the periphery of the stop hole 34 and cannot be easily removed. In addition, the rear inner side 15b of the enlarged portion 15a has a hollow shape (meat stealing shape) so that the enlarged portion 15a can be easily deformed inwardly of the locking portion 15. Therefore, the locking portion 15 can be easily moved. It can be pushed into the locking hole 34.
[0015]
Further, the connecting piece 14 is formed in a bendable thickness and shape, and as shown in FIG. 2, there is no problem in the operation of tightening the bolt B in a state where the mounting hole cap 10 is connected to the mounting hole. The cap 10 for the mounting hole can be opened, and after the bolt B is tightened, the cap main body 11 can be fitted into the mounting hole 30. In this example, a thin hinge portion 14a is formed at a boundary position between the base portion of the connecting piece 14 and the cap body portion 11, and the hinge portion 14a can be bent. Further, as shown in FIG. 2, the connecting piece 14 is configured so that when the cap 10 is connected to the mounting hole 30 of the interior material 20, the cap main body 11 is in a state where the mounting hole 30 is opened. It is preferably formed in a bent state with the angle e as a required angle with respect to the portion 11. Then, the bolt B can be tightened more easily.
[0016]
The shapes and sizes of the cap main body 11, the locking claw 12, the connecting piece 14, the locking portion 15, and the like described above are not limited to those illustrated and described, and may be appropriately selected according to the mounting hole 30 of the interior material 20. What is necessary is just to make it a shape and a size. Various materials can be used that are hard and soft according to the material of the interior material 20.
[0017]
When the interior cap 20 is attached to the surface of another interior material 20A, the mounting cap 10 is configured so that the locking portion 15 at the tip of the connecting piece 14 is locked in advance with the mounting hole 30 of the interior material 20, as shown in FIG. The hole 34 is connected to the mounting hole 30 of the interior material 20 by being inserted and locked from the inside of the mounting hole 30. Then, in this state, the bolt B is passed through the insertion hole 35 in the bottom surface 31 of the mounting hole 30 of the interior material 20 and screwed with the nut N, thereby fixing the interior material 20 to the vehicle body panel 40 and the surface of another interior material 20A. Attach to. Next, the cap 10 for the mounting hole is bent at the hinge portion 14 a of the connecting piece 14, and the cap main body 11 is fitted into the mounting hole 30. As a result, the locking claw 12 on the back surface of the cap main body 11 enters the mounting hole 30 along the inner wall 32 of the mounting hole 30 and engages with the inner periphery of the fixing hole 33 of the mounting hole inner wall 32. The main body 11 closes the attachment hole 30 and is fixed.
[0018]
【The invention's effect】
As illustrated and described above, according to the structure of the cap for mounting holes of an automobile interior material in the present invention, the interior material can be mounted in a state where the cap for mounting holes is connected to the mounting hole of the interior material. There is no need to place the cap for the mounting hole at hand, and the cap is not lost during the interior material mounting operation. Furthermore, in order to fit the cap into the mounting hole, it is only necessary to close the cap as it is after mounting the interior material, and it is not necessary to align the position.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the vicinity of a mounting hole in a state in which a mounting hole cap according to an embodiment of the present invention is closed.
FIG. 2 is a cross-sectional view of the vicinity of the mounting hole before closing the mounting hole cap.
FIG. 3 is a perspective view of the mounting hole as viewed from the back side of the interior material.
FIG. 4 is a perspective view of a mounting hole cap.
FIG. 5 is a cross-sectional view of the vicinity of a mounting hole with a conventional cap attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10,60 Cap for attachment holes 12 Locking claws 14 Connection piece 15 Locking part 20,70 Car interior material 30,80 Mounting holes 40 Body panel

Claims (1)

In a resin cap (10) that is fitted into a mounting hole (30) of an automobile interior material and covers the mounting hole (30), a cap main body (11) having a size that covers the mounting hole (30). A locking claw (12) and a connecting piece (14) whose tip is a locking portion (15 ) are provided on the edge of
A thin hinge portion (14a) is formed at a boundary position with the cap main body portion (11) at the base portion of the connecting piece (14),
The connecting piece (14) is inserted into a locking hole (34) formed in an inner wall (32) of the mounting hole, and a locking portion (15) at the tip of the connecting piece is inserted to attach the cap (10) to an automobile interior material. When the cap body portion (11) is connected to the mounting hole (30), the cap body portion (11) is formed in a bent state with respect to the body portion (11) at an angle that is a state where the mounting hole (30) is opened. ,
A structure of a cap for a mounting hole of an automobile interior material, wherein the locking claw (12) is locked to the mounting hole inner wall (32) when the cap is fitted into the mounting hole (30).

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