Base plate hanging hole structure

Abstract

The present invention provides a base plate with a suspension hole structure that allows for position adjustment after the steel plate has been laid. [Solution] A base plate has a hanging hole structure in which a pentagonal vertex 1 is formed toward the long side of the base plate at a predetermined distance from the long side of the base plate, and the center of the arc-shaped part of the pentagonal vertex 1 is formed toward the long side of the base plate, and the center of the arc-shaped part of the pentagonal vertex 1 coincides with the longitudinal center of the base plate, and the side of the pentagon provided on the opposite side of the arc-shaped part is provided as a flat hanging part 2, and the length of the side of the flat hanging part is shorter than the diagonal line connecting the two corners of the first corners 3 and 3' that are connected to the arc-shaped part.

Description

Technical Field

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[0001] The present invention relates to a steel plate floor plate for use at a construction site such as a building construction site, and more particularly to a hanging hole structure of a steel plate floor plate that enables safe lifting and movement.

Background Art

[0002] Since the heavy floor plate is lifted and moved and installed by a crane or the like, it is necessary to provide a hanging hole for hanging a hook or a wire on the floor plate. Generally, round holes or elliptical holes are provided so that a hook can be hung.

[0003] In another prior art, a structure is adopted in which a protrusion such as a ring is attached to the floor plate main body and the floor plate is lifted with a hook or a wire. (Japanese Patent Publication No. 06-074563) In this structure, due to repeated use, the durability of the connection structure between the ring and the floor plate is reduced, making it difficult to ensure safety.

[0004] With these round holes or elliptical holes in the hole structure and the ring of the lifting protrusion, the floor plate can be lifted vertically when installing the floor plate, but it is very difficult to adjust the position of the floor plate without gaps. In particular, there is a problem that once the floor plate is laid, it is impossible to use a hook to shift the floor plate, and it is necessary to carefully determine the position to be placed during laying.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] To provide a structure that can ensure durability and safety and lift the floor plate without performing post-processing such as attaching a ring of protrusions to the floor plate. [Means for solving the problem]

[0007] This is a suspension hole structure for a steel plate base plate, characterized in that a shaped hole is formed in the longitudinal center of the base plate base plate, at a predetermined distance below the upper surface of the base plate base plate, with the upper corner of the pentagon in the direction of the upper surface of the base plate base plate being an arc shape, and the center line of the arc shape of the shaped hole coincides with the longitudinal center line of the steel plate base plate. [Effects of the Invention]

[0008] By using a pentagonal-shaped hole with an arc-shaped vertex, the hook naturally settles into the center of the central arc when lifting, making it easier to attach and detach the lifting hook. Furthermore, by using the corners of the pentagonal hole, the base plate can be shifted using the hook after installation, allowing for adjustment of the position of the steel plate base plate even after installation. [Brief explanation of the drawing]

[0009] [Figure 1] Overall floor plan [Figure 2] Enlarged view of the hanging hole in Figure 1 [Figure 3] Enlarged view (photo) of the hanging hook attached to corner ▲3▼'. [Figure 4] A diagram (photo) showing the hook hacker attached to the flat suspension section of the suspension hole. [Figure 5] Enlarged view (photo) of a flat suspension using the flat suspension section at the suspension hole. [Modes for carrying out the invention]

[0010] A planar pentagonal hanging hole structure with an arc-shaped vertex was formed on the base plate, at its upper part and at the center in the width direction. [Examples]

[0011] The method for manufacturing the planar pentagonal hanging holes formed in the steel plate base plate provided in this invention is described below. First, a mold is created with holes of approximately the same dimensions as the pentagon of the hanging holes (with an amount larger to account for the cutting width). The mold is placed on the steel plate base plate to be drilled, and after fixing the mold to the steel plate base plate, the hanging holes are drilled along the mold holes using gas cutting.

[0012] The reason for using a planar pentagon shape in this invention is that, in addition to the usual method of lifting where the hook is attached to the center of the arc to lift the base plate vertically, the hook can be attached to the corner of the pentagonal lifting hole to allow the base plate to be shifted diagonally from its laid position. Furthermore, the hook can be attached to the straight, flat lifting section on the opposite side of the arc of the pentagonal lifting hole to allow for flat lifting. The lifting methods for each are described in detail below.

[0013] Figure 1 shows an overall view of a steel plate base plate. Typically, a steel plate measuring 300 cm in length, 150 cm in width, and 2.2 cm in thickness is used, and the pentagonal suspension holes are positioned at the center of the long side of the base plate, 4.5 cm away from the long side, with the arc-shaped vertices of the holes positioned accordingly. This design allows the hooks to slide along the straight section of the shoulder that connects to the arc during lifting, naturally converging towards the center and facilitating the hook attachment and detachment process.

[0014] Figure 2 is an enlarged view of the pentagon of the suspension hole, where the hook will catch on the vertex ▲1▼ of the arc provided in the suspension hole when lifting the base plate. Also, if the hook catches on the shoulder connecting vertex ▲1▼ and the first corner ▲3▼ and ▲3▼', as the base plate is lifted, the hook will slide towards vertex ▲1▼, settle at the vertex ▲1▼ of the arc, and then be lifted.

[0015] As for the usage of the corners, by hanging the hook on any of the first corners ▲3▼, ▲3▼‘ and the second corners ▲4▼, ▲4▼’ of the hanging holes, in the case of the corner ▲3▼, it is possible to adjust the dragging position with the floorboard laid on the ground in the upper left direction of the drawing. The size of this pentagon is 8.2 cm from the vertex ▲1▼ to the sides of the second corners ▲4▼, ▲4▼’, the diagonal dimension between the first corners ▲3▼, ▲3▼’ is 14 cm, and the side length of the horizontal suspension part of the second corners ▲4▼, ▲4▼‘ is 12.5 cm.

[0016] Figure 3 is used to drag the floorboard by hanging the hook on the corner ▲3▼‘ after laying the floorboard on the ground or the like and then pulling the hook. Similarly, for the corners ▲3▼, ▲4▼, ▲4▼’, the floorboard can be shifted in the desired direction by hanging the hook on any of the corners and pulling.

[0017] Figure 4 explains the usage method when using the horizontal suspension part of the straight line connecting the corners ▲4▼ and ▲4▼‘ opposite to the vertex of the pentagon. This horizontal suspension part is used to hang the hacker hook. The hacker hook is a hanging tool used when lifting a floorboard or the like, and one with two stoppers is used.

[0018] Figure 5 explains the situation when the floorboard is horizontally suspended using this hacker hook. Using the other long side of the floorboard opposite to the long side with the hanging holes of this pentagon, and hanging the clamp hooks at two points on the other long side and simultaneously lifting, horizontal suspension can be achieved. Since the hacker hook is used for the horizontal suspension part of the hanging holes of the pentagon, it is supported at two points. This enables stable horizontal suspension.

[0019] As described above, the hanging holes of the pentagon each have the functions required.

Claims

1. This is a hanging hole structure for a base plate, characterized in that a shaped hole is formed in the longitudinal center of the base plate, at a predetermined distance below the upper surface of the base plate, with the upper corner of the pentagon in the direction of the upper surface of the base plate being an arc shape, and the center line of the arc shape of the shaped hole coincides with the longitudinal center line of the base plate.

2. The hanging hole structure for the base plate according to claim 1, characterized in that the side of the pentagon provided on the opposite side of the arc-shaped portion is provided as a flat hanging portion, and the length of the side of the flat hanging portion is shorter than the diagonal line connecting the two corners of the first corner portion connected to the arc-shaped portion.

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