JPS6328679Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a mounting structure for interior parts, typified by an assist grip, which is attached to a molded ceiling surface for a vehicle.

Prior Art As shown in Fig. 3, a molded ceiling 1 for a vehicle
Conventionally, the interior parts 2 typified by the assist grip attached to the inner surface of the roof inner body panel 5 are attached to a nut 6 on the roof inner body panel 5, as shown in FIG.
are fixed in the form of weld nuts or pierced nuts, and a molded ceiling 1 consisting of a surface layer 3 consisting of a skin and a pad and a base material 4 is attached to a roof inner body panel 5.
A mounting structure in which the interior component 2 is placed on the inner surface of the molded ceiling 1 and fixed to the nut 6 with a tightening bolt 7, or a mounting hole made in the molded ceiling 1 as shown in FIG. A structure in which a spacer 9 is assembled in the roof inner body panel 5 and the interior parts 2 are fixed with a nut 6 and a tightening bolt 7 as shown in FIG. A structure is adopted in which a spacer 10 is welded in a corresponding manner, and the interior part 2 is fixed via the spacer 10 with a nut 6 and a tightening bolt 7.

Problems that the invention aims to solve Molded ceilings have the property of expanding and contracting depending on the outside temperature of the vehicle, the temperature inside the vehicle, etc.

For this reason, in the mounting structure shown in FIG. 4, expansion and contraction is prevented at the mounting portion of the interior component 2, which causes wrinkles due to deformation on the ceiling surface, which impairs the appearance.

Furthermore, in the mounting structure shown in FIGS. 5 and 6, the presence of the spacers 9 and 10 leaves room for sliding in the molded ceiling 1, so although the above-mentioned wrinkles are prevented, the spacers 9 and 10 and There is a drawback that an installation process is required, which inevitably increases costs and assembly processes.

Purpose of the invention In view of the above-mentioned current situation, the present invention aims to provide a mounting structure for interior parts that does not involve an increase in the number of parts or assembly processes and does not cause wrinkles on the molded ceiling surface.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a tightening nut consisting of an integrally formed prismatic part and a cylindrical part, and having a thread formed in at least the hollow part of the cylindrical part. The prismatic part is fixed to the roof inner body panel, and the cylindrical part is placed in the mounting hole of the molded ceiling with a gap around the outer periphery. It abuts the end face and is fixed to a screw in the hollow part of the cylindrical part with a tightening bolt.

Function Since the present invention has the above-mentioned configuration, it is sufficient to use two parts as mounting parts: a tightening nut and a tightening bolt in which a prismatic portion and a cylindrical portion are integrally formed, and the prismatic portion of the tightening nut is attached to the roof. The process of fixing it to the inner body panel places the cylindrical part in a position that functions as a spacer, and when the interior parts, such as the assist grip, are fixed to the tightening nuts with the tightening bolts, the cylindrical part is placed in a position that functions as a spacer. There is a gap between the cylindrical part of the nut and the mounting surface of the interior parts comes into contact with the end face of the cylindrical part of the tightening nut, so it does not press strongly against the molded ceiling, so the molded ceiling will not expand or contract due to temperature etc. Even if wrinkles occur, the mounting portion of the interior component can slide due to expansion and contraction, thereby preventing the occurrence of wrinkles.

Embodiment FIG. 1 and FIG. 2 show an example of implementation, which is similar to that shown in FIGS. The molded ceiling 1 has a tightening nut 11
and the tightening bolts 12, the molded ceiling surface 1
3, an interior part 2 represented by an assist grip is attached.

As shown in FIG. 2, the above-mentioned tightening nut 11 has a prismatic portion 14 and a cylindrical portion 15 integrally molded, the cylindrical portion 15 having an outer diameter smaller than the side length of the prismatic portion 14, and a hollow portion. 16 is formed. This hollow portion 16 passes through the prismatic portion 14, and at least a portion of the cylindrical portion 15 is threaded.

Further, the height h of the cylindrical portion 15 is set to a size that allows it to function as a spacer that allows sliding movement due to expansion and contraction on the molded ceiling 1 even when the interior component 2 is attached.

The above-mentioned tightening nut 11 may have its square column portion 14 fixed to the roof inner body panel 5 by welding as shown in FIG. 1, or may be fixed by piercing.

The cylindrical portion 15 of the tightening nut 11 is arranged in the mounting hole 17 of the molded ceiling 1 with a gap around the outer periphery, and the end surface 18 of the cylindrical portion 15 is brought into contact with the mounting surface 19 of the interior component 2, and the tightening is performed. The interior part 2 is fixed to the molded ceiling surface 13 by screwing the bolt 12 into the screw of the hollow part 16.

In this state, the molded ceiling 1 is
Due to the height h of 5, it is not strongly pressed by the mounting surface 19 of the interior part 2, and even in the above-mentioned mounting portion, when expansion and contraction occurs due to temperature, it slides within the gap between the mounting hole 17 and the cylindrical portion 15, and wrinkles do not occur on the molded ceiling surface 13.

Effects The present invention has the above-mentioned configuration and operation, and
Even if interior parts such as assist grips are fixed, the mounting structure allows for expansion and contraction due to thermal deformation without causing wrinkles on the molded ceiling.
This can be realized using a tightening nut and a tightening bolt, and has the effect of suppressing an increase in the number of parts and assembly man-hours, and always maintaining a good appearance of the molded ceiling surface.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an example of implementation, FIG. 2 is a perspective view of a tightening nut according to the present invention, FIG. 3 is a schematic perspective view looking up at the vehicle ceiling, FIGS. 4, 5, and 6. The figures are longitudinal sectional views of different conventional mounting structures. DESCRIPTION OF SYMBOLS 1... Molded ceiling, 2... Interior parts, 5... Roof inner body panel, 11... Tightening nut, 12... Tightening bolt, 13... Molded ceiling surface, 14... Prismatic section, 15... Cylindrical section , 16...
Hollow part, 17...Mounting hole, 18...End face, 19...
...Mounting surface.

Claims (1)

[Scope of utility model registration request] It consists of a rectangular column portion and a cylindrical portion that are integrally molded,
A mounting structure for an interior part in a molded ceiling for a vehicle, in which a tightening nut having a thread formed in at least the hollow portion of a cylindrical portion is fixed to a roof inner body panel by a rectangular column portion, the cylindrical portion is arranged within a mounting hole in a molded ceiling with a gap on the outer periphery, and the mounting surface of the interior part arranged on the molded ceiling surface abuts against the end face of the cylindrical portion and is fixed to the thread in the hollow portion of the cylindrical portion by a tightening bolt.