JPH0578676U - Automotive panel - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a lightweight and inexpensive automobile panel capable of improving rigidity. [Structure] Between the upper side panel 6 and the lower side panel 7,
A honeycomb material 11 made of corrugated cardboard, which forms a space 14 in a honeycomb shape, was arranged inside. Since the honeycomb material 11 is made of corrugated cardboard, the overall mass can be reduced and the cost can be reduced.
Since it has a double structure in which the upper side panel 6 and the lower side panel 7 are superposed and the honeycomb material 11 is interposed between them, the bending rigidity is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automobile panel used for a four-wheeled vehicle floor panel or the like.

[0002]

[Prior Art]

 Conventionally, there is one shown in FIGS. 6 to 8 as an example of an automobile panel. This vehicle panel is used as the front floor panel 1, and a plate-shaped panel body 2 located below the driver or passenger is formed in a convex shape in the front-rear direction of the vehicle. It has a structure in which a bent portion 3 that extends and a rising portion 4 that bends along the width direction on the rear side are connected.

A cross member 5 extending in the width direction is attached to the lower surface side of the automobile panel, and a bead (not shown) is formed to enhance the strength. In addition, a sound-proof and vibration-proof mel sheet (not shown) is stretched on the front side so that it can be properly used on the floor.

[0004]

[Problems to be solved by the device]

 By the way, it is desired that the automobile panel be lightweight and inexpensive, but the above-mentioned automobile panel cannot meet the above demand because it is necessary to use a plate material or the like having a predetermined strength. Was the actual situation.

As another automobile panel, as shown in Japanese Examined Patent Publication No. 46-36329, a structure in which a core layer made of a foamed material mainly made of polystyrene is filled between two outer skins in a sandwich shape. However, this automotive panel does not adequately meet the above-mentioned demands because an expensive resin is used as a core layer filled between the two outer skins.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lightweight and inexpensive automobile panel capable of improving rigidity.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is characterized in that a corrugated cardboard honeycomb material having a honeycomb-shaped space therein is arranged between two plate materials.

[0008]

[Action]

 With such a configuration, since the honeycomb member is made of corrugated cardboard, the overall mass can be reduced and the cost can be reduced.

[0009]

【Example】

 Hereinafter, an automobile panel according to an embodiment of the present invention will be described with reference to FIGS. This automobile panel is used as the front floor panel 1. In the figure, two panels (plate materials) 6 and 7 have a dish shape, and a flange 9 is formed on a side wall portion 8 thereof. A chamber 10 is formed inside by stacking the two panels 6 and 7 with the side wall portions 8 corresponding to each other, and the honeycomb material 11 is arranged in the chamber 10.

The honeycomb material 11 is a combination of a large number of plate-shaped corrugated cardboard materials 13 each having a plurality of slits 12 arranged in the longitudinal direction, with the slits 12 corresponding to each other. The space 14 is formed inside in a honeycomb shape. The corrugated ball material 13 is provided with a notch 15 at the end in the longitudinal direction so as to prevent disappearance at the time of welding which will be described later.

An air vent notch 16 is formed at a side end portion (vertical direction in FIG. 5) of the corrugated cardboard material 13, and a space portion 14 in which expanded air is formed in the honeycomb material 11 at the time of seam welding described later is formed. You can get out of it. It should be noted that wax is applied to the surface of the corrugated board material 13 to provide excellent water resistance.

Of the two panels, the panel located on the upper side (hereinafter, referred to as the upper panel) 6 and the panel located on the lower side (hereinafter, referred to as the lower panel) 7 are at the central portions in the longitudinal direction. , Two recesses 17 are formed side by side in the width direction. In this case, the positions of the recesses 17 on both the upper and lower panels 6 and 7 are the same as those of the space 14 formed in the honeycomb material 11. Corresponding to the position, the bottoms of the recesses 17 abut each other. The recess 17 is used as a seat mounting portion when the vehicle panel is arranged as the front floor panel 1.

An air vent hole 18 is formed in the vicinity of the end portion in the longitudinal direction of the upper side panel 6, so that the pressure inside the floor after completion is made equal to the outside air to prevent deformation. The air vent hole 18 is provided in a portion where moisture is unlikely to enter when the vehicle panel is arranged as the front floor panel 1. Seat rail mounting grooves 19 are formed so as to be located on both sides of the air vent hole 18.

A honeycomb material 11 is placed in a chamber 10 formed by the upper side panel 6 and the lower side panel 7 described above. (Indicated by 20), the honeycomb material 11, the upper side panel 6 and the lower side panel 7 are integrated to complete a vehicle panel. The reason why the honeycomb material 11, the upper side panel 6 and the lower side panel 7 are integrally formed by using seam welding is to prevent moisture from entering the inside. In addition, when constructing the vehicle panel, the interior may be depressurized and hermetically sealed.

In this automobile panel, since the honeycomb material 11 is made of corrugated cardboard, the total mass can be reduced and the cost can be reduced. In this case, recycled paper can be used as the corrugated board material 13, and using recycled paper in this way is effective in terms of environmental protection. Further, since the honeycomb material 11 having the honeycomb-shaped space 14 formed therein is interposed between the upper side panel 6 and the lower side panel 7, the bending rigidity is improved.

By forming a plurality of spaces 14 inside the vehicle panel, a soundproof function is exhibited. Moreover, since the honeycomb material 11 interposed between the upper side panel 6 and the lower side panel 7 is a combination of a large number of corrugated board materials 13, the vibration damping function is exerted, and the dash panel is provided. By using it, it becomes possible to function as a cushioning material.

By having the soundproofing and antivibration functions as described above, it is possible to reduce or omit the use of the mel sheet used in the conventional vehicle panel, and to reduce the weight accordingly.

Further, since the upper side panel 6 and the lower side panel 7 have a double structure, the panel thickness can be reduced in order to obtain a predetermined strength.

[0019]

[Effect of the device]

 Since the present invention is an automobile panel configured as described above, since the honeycomb material is made of corrugated cardboard, the overall mass can be reduced and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a vehicle panel according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a honeycomb material and a lower panel of the vehicle panel.

FIG. 3 is a front view schematically showing the vehicle panel.

FIG. 4 is a perspective view showing a honeycomb material of the vehicle panel.

FIG. 5 is a front view showing a corrugated board material of the same honeycomb material.

FIG. 6 is a perspective view showing a front floor panel using an example of a conventional automobile panel.

FIG. 7 is a perspective view showing a panel body portion of the front floor panel.

FIG. 8 is a front view schematically showing the front floor panel.

[Explanation of symbols]

 6 Upper panel 7 Lower panel 11 Honeycomb material 14 Space

Claims (1)

[Scope of utility model registration request] 1. A panel for an automobile, characterized in that a honeycomb material made of corrugated cardboard, which forms a honeycomb-shaped space therein, is arranged between two plate materials.