JP2000085352A - Separate component attaching structure in formed ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and inexpensively carry out temporary holding of separate component to a formed ceiling, and to enhance efficiency of attaching work for the separate component to a body panel. SOLUTION: A prismatic attaching pillar 43 is formed projectedly in an attaching face 42a of an auxiliary knob holder 40, fixing locking claws 44 are formed at least in two opposed faces of the pillar 43, the pillar 43 is inserted into an attaching hole of a formed ceiling, tips of the locking claws 44 are positioned inside the attaching hole of the ceiling to temporarily hold the auxiliary knob holder 40 to the ceiling by elastic resiliency of the locking claws 44, the knob holder 40 is further pushed in at the time of attaching to a body panel, engagement of the attaching hole of the ceiling with the locking claws 44 is released, and the tips of the locking claws 44 are engagedly fixed to the body panel to fix the knob holder 40. Temporary locking claws 45 shorter than the locking claws 44 are provided on opposing faces in side faces of the pillar 43 to restrict falling-off of the knob holder 40 in a temporary holding condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a separate component on a molded ceiling. More specifically, the present invention relates to a method for mounting a molded ceiling and another component on a vehicle body while temporarily holding the different component at a predetermined location on the surface of the molded ceiling. The present invention relates to a mounting structure of another component on a molded ceiling fixed to a panel.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a molded ceiling 1 covering the entire surface of a vehicle body panel and having excellent heat insulation and sound absorbing properties is provided on the indoor side of the vehicle body panel in a roof portion of the vehicle. Various shaped parts are attached to the molded ceiling 1.

For example, sun visors 2 are installed on the driver's seat side and the occupant side, and a bracket 3 of a shaft 2a that rotatably supports the sun visor 2 and an auxiliary knob 2b of the sun visor 2 that engage with the sun visor 2 A knob holder 4 is mounted, and an assist grip 5 for supporting the occupant's body at the time of a sharp curve or the like is provided at an obliquely upper portion of the occupant on the auxiliary seat side or an obliquely upper portion of the occupant on the rear seat side.

[0004] The molded ceiling 1 and the separate parts such as the bracket 3, the auxiliary knob holder 4, and the assist grip 5 are jointly fastened and fixed to the vehicle body panel by the joint tightening bolts. The mounting operation is performed in the state where the mounting is performed.

[0005] An operation of fixing the molded ceiling 1 and the auxiliary knob holder 4 together with the vehicle body panel 6 will be described with reference to FIG. 8. The auxiliary knob holder 4 is attached to the mounting hole 1 of the molded ceiling 1.
After inserting the auxiliary knob holder 4 from the back side of the auxiliary knob holder 4, a temporary fixing washer 7 is attached with a screw 7a, and the auxiliary knob holder 4 is temporarily fixed to the molded ceiling 1.

After that, the molded ceiling 1 is located with respect to the vehicle body panel 6, and the fixing screw 8 is tightened and fixed to the mounting hole 6a of the vehicle body panel 6 through the mounting hole 9 of the auxiliary knob holder 4, so that the molded ceiling 1 is formed. The auxiliary knob holder 4 and the vehicle body panel 6
Can be fixed together.

The bracket 3 and the assist grip 5 for fixing the sun visor 2 on the ceiling side are also temporarily held on the molded ceiling 1 by temporarily fixing fixtures such as temporary fixing washers 7 and screws 7a. When the molded ceiling 1 is attached and fixed to the vehicle body panel 6, it can be fixed together.

[0008]

However, when the conventional molded ceiling 1 and other parts such as the sun visor bracket 3, the auxiliary knob holder 4, and the assist grip 5 are fastened to the vehicle body panel 6 together with the conventional molded ceiling 1, As a structure for temporarily holding the separate component, a separate component such as the auxiliary knob holder 4 is inserted into the mounting hole 1a, and the washer 7 for temporary fixing is fixed with a screw 7a from the back side of the separate component. In addition to the disadvantage that the cost and man-hours for mounting the washer 7 for fixing and the screw 7a are increased, and the productivity is reduced, work to fasten separate parts such as the molded ceiling 1 and the auxiliary knob holder 4 to the vehicle body panel 6 is also performed. It is necessary to carry out screw tightening work with the fixing screw 8, and mounting fixtures such as the fixing screw 8 are bulky and the work is complicated. Therefore, another component is mounted and fixed to the vehicle body panel 6. Improvements have been demanded also for work.

SUMMARY OF THE INVENTION It is an object of the present invention to fix a molded ceiling and another part to a vehicle body panel easily and inexpensively and temporarily hold another part to the molded ceiling, and to reduce the work efficiency in the work of attaching to the body panel. It is an object of the present invention to provide a structure for mounting another component on a molded ceiling which can be improved.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a structure for mounting a separate part on a molded ceiling according to the first aspect of the present invention is a method for mounting a separate part at a predetermined position on the surface of the molded ceiling. In a mounting structure of another component on a molded ceiling for fixing a molded ceiling and another component to a vehicle body panel in a state where the component is temporarily held, the another component has a mounting column protrudingly formed on a mounting surface, and the mounting column has A fixing locking claw having a large diameter is formed by the mounting hole of the molded ceiling at the time of expansion, and the mounting column of another component is inserted into the mounting hole of the molded ceiling, and The resilient repulsive force of the pawl is applied to the edge of the mounting hole to temporarily hold another component on the molded ceiling, and when the vehicle body panel is mounted, the mounting post of the separate component is further pushed in the mounting direction to form a locking pawl for fixing. Release from the ceiling mounting hole, Write is flared, characterized in that attaching the different things parts by engaged with the rear side of the vehicle body panel to the vehicle body panel.

According to a second aspect of the present invention, there is provided a mounting structure for a separate component on a molded ceiling, wherein the molded ceiling and the different component are fixed to a vehicle body panel while the different component is temporarily held at a predetermined surface of the molded ceiling. In the mounting structure of another component on the ceiling, the different component has a prism-shaped mounting column protrudingly formed on a mounting surface, and can be expanded and restrained on two opposing surfaces of four side surfaces of the mounting column. At the time of expansion, the fixing claw with a large diameter is formed by the mounting hole of the molded ceiling, and the mounting prop of another component is inserted into the mounting hole of the molded ceiling, and the elastic repulsive force of the fixing claw is attached By acting on the edge of the hole to temporarily hold another component on the molded ceiling, when mounting the vehicle body panel, push the mounting post of the separate component further in the mounting direction, release the locking pawl from the mounting hole of the molded ceiling, Expand the body panel to the outside Wherein the attaching different things parts to the vehicle body panel by fastening to the back side.

According to a third aspect of the present invention, there is provided a structure for mounting another component on a molded ceiling, comprising:
Temporary holding claws shorter than the locking pawls are formed on the two opposing surfaces on the other side of the side surfaces, and the mounting posts of different components are temporarily held by being inserted into the mounting holes of the molded ceiling. Thus, the temporary holding claws are engaged with the back side of the molded ceiling, thereby restricting the separate component from falling off from the temporary holding state.

According to a fourth aspect of the present invention, there is provided a structure for mounting a separate component on a molded ceiling, wherein the separate component is an auxiliary knob holder for engaging an auxiliary knob of a sun visor for an automobile.

According to the structure for mounting another component on the molded ceiling according to the first aspect of the present invention, the mounting column is formed with a mounting column protruding from the mounting surface of the separate component, and the mounting column is formed with the molded ceiling. A fixing locking claw that expands to have a diameter larger than that of the mounting hole is formed, and the fixing locking claw has elasticity so that it converges when an external force is applied. Is inserted into the mounting hole of the molded ceiling, the locking claw is elastically deformed in a convergent manner, and due to the repulsive force at that time, it elastically contacts the edge of the mounting hole of the molded ceiling, temporarily holding another component on the molded ceiling can do.

In order to attach the separate part to the vehicle body panel while temporarily holding the separate part on the molded ceiling, the molded ceiling is positioned on the vehicle body panel, and then the separate part is further pushed in. The separate component can be attached and fixed to the vehicle body panel by detaching from the hole, expanding outward, and engaging the tip of the fixing claw on the back surface of the vehicle body panel.

According to the structure for mounting another component on the molded ceiling according to the second aspect of the present invention, the mounting surface of the different component has a rectangular column-shaped mounting column protrudingly formed thereon, and the mounting column has four mounting columns. On two opposing sides of the side surfaces, fixing locking claws are formed so as to expand so as to have a diameter larger than the mounting hole of the molded ceiling, and these fixing locking claws converge when an external force is applied. When the mounting column of another component is inserted into the mounting hole of the molded ceiling, the locking claw is elastically deformed in a convergent manner, and the repulsive force at that time causes the edge of the mounting hole of the molded ceiling to be resilient. It is possible to temporarily hold another part on the molded ceiling by elastic contact with the part.

In order to mount the separate component on the vehicle body panel while temporarily holding the same on the molded ceiling, the molded ceiling is positioned on the vehicle body panel, and then the separate component is further pushed in. The separate component can be attached and fixed to the vehicle body panel by detaching from the hole, expanding outward, and engaging the tip of the fixing claw on the back surface of the vehicle body panel.

Further, according to the third aspect of the present invention, the fixing claw is provided on two opposing surfaces of the four side surfaces of the prismatic mounting support provided on the separate component. On the other hand, on the two opposing surfaces on the other side, temporary fixing claws shorter than the fixing locking claws are provided.
When the mounting post of another component is inserted into the mounting hole of the molded ceiling and the different component is temporarily held on the molded ceiling, the locking claw for fixing is housed in the mounting hole in a converged state and holds the different component by elastic repulsion force On the other hand, since the temporary fixing claws are engaged in a state of being expanded on the back surface side of the molded ceiling, another component does not fall off the molded ceiling.

Further, according to the mounting structure of another component on the molded ceiling according to the fourth aspect, the rotating shaft is applied as an additional component to an auxiliary knob holder for engaging an auxiliary knob of an automobile sun visor. The auxiliary knob holder holds one end side of the sun visor rotatably supported by the auxiliary via the auxiliary knob, so that a strong load is not applied, and the strength by the fixing of the fixing locking claw is sufficient. Things.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of a structure for mounting a separate component on a molded ceiling according to the present invention. FIGS. 1 to 6 show an embodiment applied to an auxiliary knob holder for engaging and holding an auxiliary knob of a sun visor as a separate component according to the present invention. FIG. 1 shows an auxiliary knob holder installed on the front side of a molded ceiling. FIG. 2 is an external view showing an auxiliary knob holder, FIG. 3 is a side view of the auxiliary knob holder, FIGS. 4 and 5 are cross-sectional views showing a state where the auxiliary knob holder is temporarily held on a molded ceiling, and FIG. 6 is an auxiliary knob holder. FIG. 5 is a cross-sectional view showing a state in which is temporarily held on a molded ceiling and then attached to a vehicle body panel.

In FIG. 1, a sun visor 10 having a sunshade function is installed diagonally above the driver's seat, and the sun visor 10 is supported by a rotation shaft 11 so as to be rotatable in the vertical and horizontal directions. The rotating shaft 11 is rotatably inserted into a bracket 30 attached to the molded ceiling 20.

An auxiliary knob 12 is provided at the other end of the sunhizer 10 opposite to the rotating shaft 11. The auxiliary knob 12 is provided in an engagement portion 41 of an auxiliary knob holder 40 attached to the molded ceiling 20. By being fitted and held, the sun visor 10 adopts a two-point support structure of a rotation shaft 11 and an auxiliary knob 12.

As shown in FIG. 4 to FIG.
Reference numeral 0 denotes a synthetic resin substrate 21 having excellent shape retention, and a skin material 22 having an excellent touch feeling attached to the surface of the synthetic resin substrate 21.
No. 0 has a total thickness set to 3.5 mm, is formed into a curved shape that draws a gentle curve, and has a dimension that can accommodate these parts in correspondence with the sun visor 10 and the assist grip (not shown). A recess (20a) is formed.

In the present embodiment, as the synthetic resin base material 21, a polypropylene (hereinafter referred to as PP) secondary foam base material is used. This PP secondary foam base material heats and softens the raw PP foam beads. After the treatment, it is formed into a required shape by cold press molding, and is lightweight, has excellent heat insulating properties and sound absorbing properties, and has good shape retaining properties. Also,
At the time of this cold press molding, the skin material 22 such as a nonwoven fabric is integrated with the synthetic resin substrate 21.

According to the present invention, the auxiliary knob holder 40 can be temporarily and easily fixed to the molded ceiling 20 at low cost, and the molded ceiling 20 and the auxiliary knob holder 40 can be easily fixed to the vehicle body panel. The purpose is to enhance workability.

That is, the auxiliary knob holder 40 is made of PP resin,
It is composed of an injection molded body such as a polyacetal resin.
As shown in FIG. 5, the auxiliary knob holder 40 includes a holder main body 42 having an engagement portion 41 engaged with the auxiliary knob 12 of the sun visor 10, and a quadrangular prism-shaped mounting formed integrally with a mounting surface 42 a of the holder main body 42. On the four side surfaces of the mounting column 43, long fixing locking claws 44, 44 are formed on two opposing surfaces so that their tips 44 a face downward. Locking pawl 44
Elasticity is provided so that expansion and convergence can be achieved.

On the remaining two surfaces of the mounting column 43, temporary fixing claws 45, 45, which are shorter than the fixing locking claws 44, are formed. As shown in FIG. The dimensions of 44 are such that the tip 44 a of the locking pawl 44 and the holder body 42
The distance (indicated by reference numeral d1 in FIG. 3) from the mounting surface 42a is set to be substantially the same as the thickness of the molded ceiling 20, and the tip 45a of the temporary fixing claw 45 is
What is necessary is that it is set at a position higher than a by an arbitrary dimension indicated by reference symbol d2.

Next, a temporary fixing structure of the auxiliary knob holder 40 and a fixing structure of the auxiliary knob holder 40 to the vehicle body panel 50 will be described with reference to FIGS. 4 to 6. The mounting column 43 of the auxiliary knob holder 40 is inserted into the mounting hole 23 formed in the molded ceiling 20.

At this time, the mounting hole 23 formed in the molded ceiling 20 is set in a square shape which is slightly larger than the mounting column 43, and the mounting column 43 is initially inserted when the mounting column 43 is inserted.
The fixing locking claws 44 and the temporary fixing claws 45 formed on the four side surfaces of the third fixing member 3 are inserted in a state in which they are bent inward, respectively. As shown in FIG. Since the 45 is disengaged from the mounting hole 23 and the temporary fixing claw 45 returns to the basic shape and expands outward, the tip 45 a of the temporary fixing claw 45 is engaged with the back surface of the molded ceiling 20.

On the other hand, at the position where the temporary fixing claw 45 is disengaged from the mounting hole 23, the tip 44a of the fixing locking claw 44 is still located in the mounting hole 23 as shown in FIG. The locking claw 44 is pressed by the edge of the mounting hole 23, and in a converged state in which it is bent inward, a repulsive force acts in the direction of the arrow in FIG. 5 to support the auxiliary knob holder 40 on the molded ceiling 20. become.

As described above, in the state shown in FIGS. 4 and 5, the mounting surface 4 of the holder main body 42 of the auxiliary knob holder 40 is
A clearance a is set between the second knob 2a and the surface of the molded ceiling 20 so that the auxiliary knob holder 4 is not in a completely pushed state but in a temporary holding state.
The fixing locking claw 44 provided on the mounting post 43 is accommodated in the mounting hole 23 of the molded ceiling 20 in a converged state, and the elastic repulsive force of the fixing locking claw 44 acts on the inner surface of the mounting hole 23. The auxiliary knob holder 40 is securely held temporarily on the molded ceiling 20, and in this temporary holding state, the tip 45 a of the temporary fixing claw 45 is engaged with the back surface of the molded ceiling 20 as shown in FIG. Therefore, the auxiliary knob holder 40 does not fall off.

Next, the auxiliary knob holder 4 is attached to the molded ceiling 20.
0, the vehicle body panel 50 is temporarily held as shown in FIG.
Of the molded ceiling 20 with respect to the mounting hole 51 of the vehicle body panel 50 with respect to the mounting hole 2 of the molded ceiling 20.
3 and align the auxiliary knob holder 40 with the body panel 50.
Side, the locking pawl 44 provided on the mounting column 43 of the auxiliary knob holder 40 is disengaged from the mounting hole 23 of the molded ceiling 20 and expands outward. Is engaged with the vehicle body panel 50, so that the auxiliary knob holder 40 is securely fixed to the vehicle body panel 50.

As described above, when the structure for mounting a separate component according to the present invention is applied to the auxiliary knob holder 40 of the sun visor 10, the structure for temporarily holding the auxiliary knob holder 40 to the molded ceiling 20 may be a temporary fixing washer or a screw. Can be temporarily eliminated, the auxiliary knob holder 40 can be temporarily fixed to the molded ceiling 20 easily and inexpensively, and the auxiliary knob holder 40
In the structure in which is attached to the vehicle body panel 50, only a simple push-in operation is required, and troublesome screwing work can be eliminated, the auxiliary knob holder 40 can be easily fixed, and the workability is excellent.

In this embodiment, the auxiliary knob holder 4
A configuration is such that fixing locking claws 44 are formed on two opposing surfaces of the mounting post 43, and temporary fixing claws 45 shorter than the fixing locking claws 44 are provided on the other two opposing surfaces. However, the temporary fixing claws 45 are eliminated, and the fixing locking claws 44 are formed on two opposing surfaces of the mounting column 43, or the fixing locking claws 44 are formed on four side surfaces of the mounting column 43, respectively. It is also possible to adopt a configuration in which Further, instead of the auxiliary knob holder 40, the present invention can be applied to a bracket 30 of the sun visor 10 and a temporary fixing structure and an attachment structure of the assist grip.

[0035]

The above is the configuration of the embodiment of the mounting structure of another component on the molded ceiling according to the present invention. According to the mounting structure of the different component on the molded ceiling according to the first aspect of the present invention, the different component is mounted. A mounting post is formed on the mounting surface, and a fixing locking claw is formed on the mounting post to expand so as to have a larger diameter than the mounting hole of the molded ceiling. Since the pawl has elasticity so that it converges when an external force is applied, if the mounting post of another component is inserted into the mounting hole of the molded ceiling, the locking pawl for elastic deformation is convergently elastically deformed. Due to the repulsive force at the time, it comes into elastic contact with the edge of the mounting hole of the molded ceiling, and it is possible to temporarily hold another component on the molded ceiling. No need for temporary fixing work. It is those that can be temporarily fixed to the molded ceiling to the valence.

According to the mounting structure of another component on the molded ceiling according to the second aspect of the present invention, the mounting surface of the another component has a rectangular column-shaped mounting column protrudingly formed therefrom, and the mounting column has four side surfaces. On two opposing surfaces, fixing locking claws are formed to expand so as to have a larger diameter than the mounting hole of the molded ceiling,
Since the locking pawls have elasticity so that they converge when an external force is applied, the fixing pawls are elastically converged by inserting a mounting post of another component into the mounting hole of the molded ceiling. It deforms and resiliently contacts the edge of the mounting hole of the molded ceiling due to the repulsive force, and can temporarily hold another part on the molded ceiling, eliminating the need for conventional temporary fixing washers, screws and other temporary fixing equipment. Since a troublesome temporary fixing operation is not required, another component can be temporarily and simply and inexpensively temporarily fixed to the molded ceiling.

In order to mount the separate part on the vehicle body panel while temporarily holding the same on the molded ceiling, the molded ceiling is positioned on the body panel, and then the separate part is further pushed in. As it separates from the hole, expands outward, and the tip of the locking claw is engaged with the back of the vehicle body panel, another component can be attached and fixed to the vehicle body panel, so conventional screw tightening work In comparison with the above, another component can be easily attached and fixed to the vehicle body panel, and the mounting workability is improved.

According to the third aspect of the present invention, there is provided a structure for mounting a separate component on a molded ceiling, wherein two of the four side surfaces of the prismatic mounting support provided on the separate component are provided with locking pawls for fixing. On the other hand, the two opposite surfaces on the other side are provided with temporary fixing claws shorter than the fixing locking claws. When the parts are temporarily held on the molded ceiling, the locking pawls are accommodated in the mounting holes in a converged state and hold the separate parts by elastic repulsion, while the temporary fixing claws expand on the back side of the molded ceiling Since the separate component is temporarily held, the separate component 30 can be reliably prevented from dropping from the molded ceiling when the separate component is temporarily held.

According to the structure for mounting another component on the molded ceiling according to the fourth aspect of the present invention, the structure is such that the auxiliary knob of the sun visor for an automobile is applied as a separate component to the auxiliary knob holder. The auxiliary knob holder holds one end side of the sun visor rotatably supported by the shaft via the auxiliary knob, so that a strong load is not applied. It is sufficient and can prevent excessive quality.

[Brief description of the drawings]

FIG. 1 is an external view showing an auxiliary knob of a structure for mounting another component on a molded ceiling according to the present invention.

FIG. 2 is an external view showing an auxiliary knob holder of a structure for mounting another component on a molded ceiling according to the present invention.

FIG. 3 is a side view of the auxiliary knob holder shown in FIG. 2;

FIG. 4 is a sectional view showing a state where the auxiliary knob holder shown in FIG. 2 is temporarily held on a molded ceiling.

5 is a sectional view showing a state where the auxiliary knob holder shown in FIG. 2 is temporarily held on a molded ceiling.

FIG. 6 is a sectional view showing a state in which the auxiliary knob holder shown in FIG. 2 is attached to a vehicle body panel.

FIG. 7 is an overall view of a conventional molded ceiling viewed from the indoor side.

FIG. 8 is a sectional view showing a temporary holding structure of an auxiliary knob holder in a conventional molded ceiling.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Sun visor 12 Auxiliary knob 20 Molded ceiling 21 Synthetic resin base material 22 Skin material 23 Mounting hole 30 Bracket 40 Auxiliary knob holder 41 Engagement part 42 Holder main body 43 Mounting column 44 Fixing claw 45 Temporary fixing claw 50 Body panel 51 Mounting Hole

Claims (4)

[Claims] 1. A mounting structure for a separate part in a molded ceiling for fixing the formed ceiling and the different part to a vehicle body panel while temporarily holding the different part at a predetermined position on a surface of the molded ceiling, wherein the different part is provided on a mounting surface. A mounting post is formed so as to protrude, and can be expanded and restrained on the mounting post. At the time of expansion, a fixing claw having a large diameter is formed by a mounting hole of a molded ceiling, and a mounting post of another component is formed. It is inserted into the mounting hole of the molded ceiling, and the elastic repulsive force of the fixing claw is applied to the edge of the mounting hole to temporarily hold another component on the molded ceiling. Furthermore, it is characterized in that another component is attached to the vehicle body panel by pushing it in the mounting direction, releasing the locking pawl from the mounting hole of the molded ceiling, expanding it outward and engaging it with the back side of the vehicle body panel. Different in molded ceiling Mounting structure of the parts. 2. A structure for mounting a separate part on a molded ceiling, wherein the separate part and the separate part are fixed to a vehicle body panel in a state where the separate part is temporarily held at a predetermined position on a surface of the molded ceiling, wherein the separate part is mounted on a mounting surface. A prism-shaped mounting column is protruded and formed.
It can be expanded and constrained on the surface. At the time of expansion, a fixing claw with a large diameter is formed by the mounting hole of the molded ceiling, and the mounting post of another component is inserted into the mounting hole of the molded ceiling, and fixed. The elastic repulsive force of the locking claw is applied to the edge of the mounting hole to temporarily hold another component on the molded ceiling, and at the time of mounting the vehicle body panel, the mounting column of the different component is further pushed in the mounting direction, and the fixing locking claw is pressed. A mounting structure for another component on a molded ceiling, wherein the component is mounted on a vehicle body panel by releasing from a mounting hole of the molded ceiling, expanding outward and engaging with a back surface of the vehicle body panel. 3. A temporary holding claw, which is shorter than the fixing claw, is formed on two opposing surfaces on the other side of the four side surfaces of the mounting post of the separate component, and is provided in the mounting hole of the molded ceiling. The temporary holding claw is engaged with the back side of the molded ceiling in a state where the mounting post of the separate component is inserted and temporarily held, thereby restricting the separate component from falling off from the temporary holding state. 1
The mounting structure of another component on the molded ceiling according to the above. 4. The mounting structure for a separate component on a molded ceiling according to claim 1, wherein the separate component is an auxiliary knob holder for engaging an auxiliary knob of an automobile sun visor.