JPH0117474Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the tensioning structure of a ceiling sheet for automobiles.

In the conventional tensioning structure, as shown in Fig. 1, the ceiling sheet tensioning support member 1 is made of a metal round bar, the whole is processed into a bow shape, and both ends 1a, 1a are bent outward. and the bent ends 1a, 1a
The supporting member 1 is attached to the roof rail 3 by forming a hole 2 in the roof rail 3 and engaging the locking hole 4 of the roof rail 3 disposed above both sides of the vehicle body. The support member 1 is inserted into the suspension bag 6 of the ceiling sheet 5, and both bent ends 1a, 1a of the insertion support member 1 are inserted into the locking hole 4 of the roof rail 3 as described above. It was a structure in which the ceiling sheet 5 was stretched inside the roof panel 7 by intervening under the regulations of the roof panel 2.

However, in such a conventional tension structure, since the support member 1 is constructed of a metal round bar, it goes against the current demands for reducing the weight of the vehicle body, and the overall arcuate shape of the metal support member 1 is Processing and both ends 1
This is a major problem in the manufacturing process of the support member 1, as outward bending of parts a and 1a is required, and complicated and technically difficult botching is required to control the amount of insertion. It had In addition, in the conventional structure, it is assumed that a suspension bag 6 through which the support member 1 is inserted is formed in the ceiling sheet 5, but there are also problems in the number of steps in the molding process of the suspension bag 6. In addition, it is also troublesome to insert the support members 1 one by one into the hanging bag 6, which poses a problem in terms of improving assembly workability. Furthermore, when the ceiling sheet 5 is stretched, the support member 1 made of a metal round bar has a sufficient risk of rotating downward about the locking hole 4 of the roof rail 3 as a fulcrum, so there is also a problem in this respect. . Furthermore, in the tension completion posture of the conventional structure, both ends 1a, 1a of the support member 1 are
Since the bent base portions 1b, 1b of the vehicle protrude inward from the vehicle body, the interior ceiling space of the vehicle tends to be unnecessarily narrowed.

The present invention was devised in view of the problems with the conventional tension structure, and involves forming a welding film around a linear support member, and then applying the welding film to the support member through the welding film. A tensioning structure in which a synthetic resin ceiling sheet is stretched inside a roof panel by directly welding the back side of the synthetic resin ceiling sheet to the roof rail and attaching both ends of the support member to the roof rail,
The support member is made of a glass fiber reinforced resin rod, and separately molded caps having engagement grooves are fitted to both ends of the support member, and the engagement grooves of the cap are engaged with the other roof rail. The above-mentioned problems can be effectively solved by providing a locking piece and employing a structure in which the locking piece of the roof rail engages the engaging groove of the cap fitted to both ends of the support member. It is something to do.

Hereinafter, the present invention will be described in detail based on an illustrative embodiment. As shown in FIG. Specifically, a welding coating of about 0.5 mm made of vinyl chloride resin or polyethylene resin is applied around the linear rod 11b made of glass fiber reinforced resin (FEP) using an extrusion molding machine. 1
1a. Furthermore, as shown in FIG. 2, the supporting member 11 is fitted with separately molded caps 13 having engagement grooves 12 at both ends thereof, so that a roof rail, which will be described later, can be engaged through each of the caps 13. It is configured to be indirectly attached to the stopper.

Further, the present invention utilizes the welding film 11a for the supporting member 11 having such a structure, and as shown in FIG. 3A, a ceiling sheet 14 made of synthetic resin such as vinyl chloride resin
The back side of the plate is linearly welded 15 by high frequency welding. Therefore, the ceiling sheet 14 and the film 11
If a is the same material or similar material, both 1
4 and 11a can be ideally integrated, and there is no material separation between the two during tensioning. However, welding 15
In this case, as shown in Fig. 3B, the ceiling sheet 1
The constant widths 14a, 14a on both sides of 4 are not welded to the support member 11 due to terminal treatment,
Only the area excluding a and 14a is welded to the support member 11.
5.

On the other hand, a locking piece 17 is continuously provided at the upper end of the roof rail 16 and is bent at a certain angle upwardly inside the vehicle body.
The engaging groove 12 of the cap 13 is fitted to both ends of the cap 13.
It is configured to engage. In addition, in such a case,
The distance between the engagement grooves 12 and 12 at both ends of the support member 11 is set to be longer than the distance between the locking pieces 17 facing each other.

Therefore, in the tension structure according to the present invention, as shown in FIG. Simply by engaging each locking piece 17 of the roof rail 16 arranged above both sides,
The support member 11 is attached to the roof rail 16 in an upwardly curved state due to the above-mentioned dimensional difference, and at the same time, the welded ceiling sheet 14 can be extremely easily stretched inside the roof panel 18. Moreover, in such a tensioned state, both ends of the supporting member 11 are strongly pressed against the locking piece 17 of the roof rail 16 due to the upward curvature of the support member 11, so that the locking piece 17 and the engaging groove 12 The engagement of the support member 11 is ensured, and the support member 11 never swings or rotates downward as in the conventional case.

As described above, according to the tension structure of the present invention, the support member is constructed of a straight glass fiber-reinforced resin rod with a welding film formed around it, and the supporting member is attached to the ceiling through the welding film. Since it is characterized by directly welding the back side of the sheet, it is not necessary to form suspension bags on the ceiling sheet one by one and insert the supporting members one by one into each suspension bag, as in the past. Since this eliminates the problem, it is possible to improve the tensioning work of the ceiling sheet, and there is no need to form the hanging bag at all.

Furthermore, the fact that the supporting member according to the present invention is composed of a straight glass fiber reinforced resin rod eliminates the need for the overall bowing process and outward bending of both ends, which were required for conventional supporting members. Since there is no need for bottu processing at all, the cutting process of the support member itself is greatly improved, and due to the characteristics of glass fiber reinforced resin, there is no need for it to be inferior in strength to metal support members. Not only can the ceiling sheet be reliably stretched in the same manner as the metal support member, but it can also meet the requirements for reducing the weight of the vehicle body.

Furthermore, in the tensioning structure of the present invention, separately molded caps having engagement grooves are fitted to both ends of the linear support member, and both ends of the support member are connected to the roof rail through the respective caps. Since it is characterized by being attached to the locking piece of the support member, there is no need to directly process engagement grooves on both ends of the support member, so from this point of view as well, we can greatly expect improvements in the manufacturing process of the support member. In addition, in conjunction with the structure in which the ceiling sheet is directly welded to the support member, it can greatly contribute to expanding the ceiling space of the automobile.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a cross section of a conventional tension structure, Fig. 2 is a perspective view showing a support member provided for the tension structure according to the present invention, and Fig. 3A is a welding coating on the support member. Figure B is a perspective view of the entire structure, Figure 4 is a perspective view of a locking piece provided on the roof rail, and Figure 5 is a cross-sectional view showing a state in which the ceiling sheet is directly welded through the roof rail. FIG. 3 is a front view showing a cross section of the structure. 11...Supporting member, 11a...Welding coating, 1
1b...Synthetic resin body, 12...Engagement groove, 13...
... Cap, 14 ... Ceiling sheet, 16 ... Roof rail, 17 ... Locking piece, 18 ... Roof panel.

Claims (1)

[Scope of utility model registration request] Forming a welding film around the linear support member,
The synthetic resin ceiling sheet is stretched inside the roof panel by directly welding the supporting member and the back side of the synthetic resin ceiling sheet through the welding film and attaching both ends of the supporting member to the roof rail. In the tension structure, the support member is made of a glass fiber-reinforced resin rod, a separately molded cap having engagement grooves is fitted to both ends of the support member, and the cap is attached to the roof rail. An automobile characterized in that a locking piece that engages an engaging groove is provided, and the locking piece of the roof rail is configured to engage the engaging groove of a cap fitted to both ends of a support member. Stretching structure for ceiling sheets.