JPH0116427Y2 - - Google Patents

Description

[Detailed description of the invention] (Technical field) The invention consists of a bottom plate, four vertical pillars, and a horizontal board or horizontal pillar stretched between them.
It relates to structures used in various devices such as tables.

(Conventional technology) FIG. 1 shows a conventional structure.

The molded metal plate workpiece forming the structure is composed of a tray-like bottom plate 1, four vertical columns 2, two horizontal plates 3, and two horizontal columns 4. Each molded workpiece is joined using an appropriate fastening method. 1st
In the figure, the parts indicated by X indicate the fastening parts. Fastening methods include spot welding, electric arc welding, and screw fastening. In this embodiment, spot welding is shown.

When such a structure receives, for example, an external force F ₁ from the direction of the arrow, the structure deforms by Δ. At this time, in the quadrilateral formed by the horizontal plate 3 and the horizontal column 4, the angles A and B become more obtuse angles, and the angles C and D become more acute angles. When an external force F ₂ is applied in the direction of the arrow, the plane 34 surrounded by the upper surface 1a of the tray-shaped bottom plate 1, the horizontal plate 3, and the upper end of the horizontal column 4
The flatness of the (virtual plane) collapses and deforms. At the same time, the angles A, B and angles C, D also change.

(Purpose) The present invention was made in view of the shortcomings of conventional structures, and is a structure consisting of a columnar metal plate molded product (lightweight section steel) and a tray-shaped metal plate molded bottom plate. The purpose is to obtain rigidity with a simple structure.

(Structure) An embodiment of the present invention will be described below based on FIG. 2.

As shown in the figure, in the present invention, on the surface facing the tray-shaped bottom plate 1, that is, on the upper surface of the structure,
A reinforcing plate 5 is stretched between the horizontal columns 4, 4.

For fastening to the horizontal column 4, suitable means such as screws or welding are used. In the figure, the X marks indicate the fastening points.

The fastening can be done not only at a point but also on a surface. For example, adhesive may be applied to the entire contact surface and fastened. The reinforcing plate 5 may have a small thickness. For example, when the metal plate constituting the structure is 3 mm thick, the reinforcing plate may have a thickness of 0.6 mm.

As mentioned above, when a structure is deformed by an external force, a change in angle and a change in the relative position of the members occur. This change occurs in some cases where the distance between the members becomes smaller and in other cases where it becomes larger in proportion to the distance. Therefore, if the distance between the members increases is restricted by the reinforcing plate 5, the overall rigidity will be improved as a result. That is, the reinforcing plate 5 only needs to withstand tensile force, and therefore there is no need to consider buckling.

Therefore, the thickness of the reinforcing plate 5 can be equal to or less than the thickness of other metal plate molded products.

Further, the area of the reinforcing plate 5 does not need to be large enough to cover the entire upper surface of the structure, and there is no problem even if there is a gap as shown in the figure.

FIG. 3 is a characteristic diagram showing the relationship between the external force F ₁ on the structure and the corresponding deflection.

In the figure, 1 is the characteristic when there is no reinforcing plate 5, and 2 is the characteristic when the reinforcing plate 5 is provided.

As is clear from this characteristic diagram, the stiffness of the structure was significantly improved by the reinforcing plate 5.

(Effects) As described above, the present invention significantly improves the rigidity of the structure by adding a reinforcing plate to the top surface of the structure that has sufficient tensile strength to regulate the distance between the members of the structure body. I can do it. Furthermore, providing a gap between the reinforcing plate and the entire upper surface is effective in creating a mechanism for functionally connecting a mechanism provided on the structure and an internal space constituted by the structure. In addition, if the rigidity of the structure is ensured by the reinforcing plate, there is no need to consider fastening methods that affect the strength of other structures and articles installed inside and outside the structure, and the range of applications is extremely wide. . For example, in a copying machine, when a paper feeding mechanism is provided on the legs made up of a structural body and paper is supplied to the copying machine body installed on top of the structure, it is necessary to ensure a path for the paper. can be easily done.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing a structure according to a conventional example, FIG. 2 is an external perspective view of a structure according to an embodiment of the present invention, and FIG. 3 is a characteristic diagram showing the relationship between external force and deflection. . 1...Tray-shaped bottom plate, 5...Reinforcement plate.

Claims (1)

[Scope of utility model registration request] In the structure assembled by fastening the molded metal plate molded workpieces, a planar reinforcing plate is added to the upper surface opposite to the tray-shaped bottom plate, and the thickness of this planar reinforcing plate is increased by adding another metal plate. A structure characterized by having a thickness of 1/2 or less of the plate thickness of a plate molded product.