JPH034625Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the technical field of automobile bodies and connection structures of their panels.

Therefore, this invention has a floor panel supported on the center frame of an automobile via a body mount, etc., and a rocker inner panel that hangs down parallel to the outside of the center frame, and has a rocker panel formed in a closed cross section. This invention relates to a combination structure of an automobile floor panel and a rock inner panel, in particular, the floor panel and rock inner panel are tightened with bolts that penetrate the center frame and are arranged in a horizontal position, etc. It is an idea.

<Prior Art> As is well known, there are two types of automobile body structures: body structures with a frame and body structures without a frame. Among them, the body structure with a frame is designed to absorb shocks and vibrations from the road surface once through the frame. After that, it is transmitted to the body, and has superior impact resistance and vibration resistance compared to frameless body structures, and is often used in luxury cars in particular.

As shown in FIGS. 4 and 5, the structure of the conventional joints between the center frame, the floor panel, and the rocker panel is such that the center frame 2 of the automobile 1 is formed in a predetermined closed cross section, or A floor panel 3 is arranged on the passenger compartment side of the center frame 2' formed in an open cross section, and the center frame 2,
A rocker panel 4'', which is formed into a predetermined closed section by a rocker inner panel 4 and a rocker outer panel 4' and is connected to the floor panel 3, is arranged on the outer side of the vehicle at the center frame 2', and is placed at a predetermined upper part of the center frame 2, 2'. A well-known body mount (not shown) is arranged in a vertical position to fix the floor panel 3.

<Problem to be solved by the invention> However, in the above-mentioned prior art combination structure of the automobile floor panel and the rocker panel, the vibration generated in the floor panel 3 cannot be escaped, and the vibration generated in the floor panel 3 and the rocker panel cannot be escaped. Although vibrations are transmitted through the 4'' connecting portion, the degree of transmission is extremely small, and the vibrations are transmitted from the floor panel 3 in the passenger compartment to the seats, resulting in a disadvantage that the riding comfort is worsened.

Therefore, the noise associated with the above-mentioned vibration tends to be trapped in the vehicle interior, which also has the disadvantage of worsening the riding comfort as described above.

The purpose of this invention is to solve the technical problem of the combination structure of the automobile floor panel and rocker panel based on the above-mentioned conventional technology, and to reduce vibration and noise in the vehicle interior and improve riding comfort. It is an object of the present invention to provide an excellent combination structure of an automobile floor panel and a rocker panel that is useful in the field of application of component joining technology in the automobile industry.

<Means/effects for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is based on the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problem. A body mount that connects the rocker panels arranged in parallel and the floor panel arranged on the passenger compartment side of the center frame above the center frame, and the floor panel is arranged in a vertical position on the upper part of the center frame. At the same time, the floor panel and the rocker panel are short-circuited by tightening the rocker panel to the rocker inner panel that hangs down from the upper part of the rocker outer panel of the rocker panel through bolts that penetrate the center frame and are arranged in a horizontal position. We have taken technical measures to make it easier to transmit vibrations generated in the panel to the rocker panel, disperse them, reduce the vibrations inside the vehicle interior and the noise associated with the vibrations, and improve the ride comfort of the car. It is something.

<Embodiment - Configuration> Next, one embodiment of this invention will be described as follows based on the drawings of FIGS. 1 to 3. Incidentally, the same reference numerals are used to describe the same parts as those in the conventional embodiment shown in FIGS. 4 and 5.

FIG. 2 shows a cross section of the joint between the floor panel 3 and rocker panel 4'' of the automobile 1, where the rocker panel 4'' is formed by a rocker outer panel 4' having a predetermined shape and a rocker outer panel 4' hanging down from the upper passenger compartment side of the rocker outer panel 4'. The inner panel 4 is formed to have a predetermined closed cross section, and is arranged in parallel on the outside of the vehicle with respect to the center frame 2, which is formed to have another predetermined closed cross section.

Further, the floor panel 3 is disposed on the vehicle interior side of the center frame 2, and a vertical plane 5 is formed in a predetermined vicinity of the center frame 2.
As shown in FIG. 2, it is formed into a predetermined curved surface and is welded to the upper part of the rocker outer panel 4'.

The floor panel 3 and rocker panel 4'' are connected to the center frame 2 in the same way as in the conventional aspect
The center frame 2 is fixed to the center frame 2 via a body mount (not shown) disposed in a vertical position at a predetermined portion on the upper part of the center frame 2 in the longitudinal direction.

Note that 6 is a well-known cross member, which is disposed on the lower side of the floor panel 3, and its end portion is inscribed in the vertical plane 5 of the floor panel 3, as shown in FIG. Further, the cross member 6 is formed into a predetermined curved surface and is interposed between the floor panel 3 and the center frame 2, and the tip of the cross member 6 is inscribed in the rocker inner panel 4 and welded to the rocker inner panel 4.

Furthermore, on the vertical plane 5 of the floor panel 3,
At predetermined intervals, stepped bolts 8, each having a threaded end 7 with a small diameter, circumscribe the seat 9 of the bolt head, pass through the through hole 10 of the center frame 2, and penetrate the inner panel 4. A reinforcement 11 welded to the outside of the rocker inner panel 4 is screwed into a nut 12 fixed by welding.

Furthermore, a rubber cushioning material 13 is inserted between the through hole 10 of the center frame 2 and the stepped bolt 8, and the center frame 2 receives impact from the road surface while driving.
It is designed to absorb shocks and vibrations and prevent them from being transmitted to the floor panel 3, thereby improving riding comfort.

Furthermore, the stepped portion 14 of the stepped bolt 8 is
As shown in FIG.
The floor panel 3, cross member 6, and inner rocker panel 4 will not be distorted due to excessive tightening.

<Embodiment - Effect> In the above configuration, vibrations generated in the floor panel 3 while the automobile 1 is running are transmitted to the rocker panel 4'' via the shoulder bolts 8 and dispersed, so that the vibrations of the floor panel 3 are reduced. The level is reduced and the noise associated with the vibrations is also reduced.

<Other Embodiments> It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments. For example, the bolts may be tightened using normal bolts of the same diameter instead of stepped bolts. In that case, if the bolt is coated with a collar of the same size as the length from the seat to the stepped part, distortion of each member during tightening can be prevented, and the stepped part in the above-mentioned first embodiment can be prevented. It can achieve the same purpose as a bolt, and can also be applied to a center frame formed with an open cross section, and various other aspects can be adopted.

<Effects of the invention> As described above, according to this invention, the floor panel and the rocker panel, which are connected through the center frame, are tightened by the bolts passing through the center frame, thereby creating a short-circuit path between the floor panel and the rocker panel. is formed, and the vibrations generated in the floor panel are transmitted to the rocker panel through the bolts and dispersed, and as a result, the vibration level of the floor panel is reduced, and therefore the vibrations in the vehicle interior are reduced. The excellent effect is that the riding comfort of the automobile is greatly improved.

Further, as described above, as a result of reducing the vibration of the floor panel, the noise generated due to the vibration is also reduced, and the excellent effect of further improving the ride comfort of the automobile is achieved.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of this invention. Figure 1 is a perspective view of the joint between the floor panel and rocker panel of an automobile, Figure 2 is a cross-sectional view of Figure 1, and Figure 3 is a The exterior side view of the automobile, FIGS. 4 and 5, are sectional views corresponding to FIG. 2 of the prior art. 1...Car, 2...Center frame, 3...
Floor panel, 4...Rotsuka inner panel, 4''
...Lotsuka panel, 8...Bolt.

Claims (1)

[Scope of utility model registration request] In a combination structure of a floor panel supported by a center frame of an automobile and a rocker panel having a rocker inner panel hanging outside the center frame, the bolt is arranged so that the floor panel and rocker inner panel pass through the center frame. A combination structure of an automobile floor panel and a rock panel, which is characterized by being tightened with