JP3108705U - Lightweight inner ring with flange - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop and provide a light-weight inner diameter ring with a flange that can reduce the material cost and the processing cost, and can exhibit the performance equivalent to or better than the conventional, in order to solve the conventional problems. .
An inner ring with a flange has a predetermined plate thickness, a predetermined width, and one end in the width direction of a strip-shaped metal plate having a predetermined length that match an inner diameter and an outer diameter of a rolled steel sheet. Fold it back and roll it so that the hem of the vertical plate is shifted by a predetermined dimension so that the hem of the vertical plate becomes one piece from the two layers, and then fold one end of the folded two-layer plate into an L shape in the reverse direction L-shaped plate with two corners of which the entire circumference is double-rolled by roll-rolling the vertical plate part of two-layered L-shaped plate, forming two-layered L-shaped plates with equal or unequal longitudinal and lateral dimensions A ring-shaped inner diameter ring with a flange is formed.
[Selection] Figure 1

Description

  The present invention relates to a light-weight inner diameter ring with a flange that is fitted into both cores of a rolled steel sheet to protect and store the end of the steel sheet.

  A conventional flanged inner diameter ring is formed by bending a band-shaped or rectangular metal steel plate into an L-shape and bending it into a ring shape as shown in FIG. Because it is dangerous to work if used as it is, deburring processing was performed on the outer peripheral corner of the ring.

  Moreover, as shown in FIG. 4B, the metal steel sheet wound in a roll shape is lifted and transported by lifting means such as a rope and a crane. Because of this, a slightly thick metal steel plate was used in consideration of safety. Accordingly, it is heavy in weight and very expensive in terms of costs such as material costs and manufacturing costs.

Therefore, the patent documents filed so far are introduced for reference. (See Patent Document 1.)
JP-A-6-198338

  Accordingly, the present invention is to develop and provide a light weight inner diameter ring with a flange that can reduce the material cost and the processing cost and can exhibit the performance equivalent to or higher than the conventional one in order to solve the conventional problems.

  As a means for solving this problem, the inner diameter ring with a brazing is made of a strip-shaped metal plate having a predetermined plate thickness, a predetermined width, and a predetermined length that match the inner and outer diameters of a rolled steel sheet. Provided, and rolled and rolled one end in the width direction of the belt-shaped metal plate so that the skirt part is displaced by a predetermined dimension, and the end of the double-ply rolled and folded sheet is further folded into an L shape in the reverse direction. Bending to form two-layer L-shaped plates with equal or unequal vertical and horizontal dimensions, and rolling the vertical plate portion of the two-layer L-shaped plate to form a corner portion with two circumferential sections overlapping each other An L-shaped flanged inner diameter ring is formed.

  As an effect of this device, a strip-shaped metal plate having a predetermined plate thickness, a predetermined width, and a predetermined length that match the inner and outer diameter dimensions of a rolled steel sheet is provided, and the width of the strip-shaped metal plate One end of the direction is folded back and rolled so that the skirt part is deviated by a predetermined dimension, and the end part of the two-layered laminated board folded back and rolled is further folded into an L shape in the reverse direction, and the vertical and horizontal dimensions are equal or By forming a two-layered L-shaped plate with unequal sides and rolling the vertical plate part of the two-layered L-shaped plate, the current strength is maintained, weight reduction and deburring cost of outer peripheral corners In addition, the packaging paper is less likely to be damaged during packaging, and thus has extremely beneficial effects in terms of safety, workability, and economy.

  Therefore, the best mode of this device is to form a brazed inner diameter ring that matches the inner diameter and outer diameter of the rolled steel sheet, and the thickness of the band-shaped metal sheet is half that of the conventional one. Folded into two sheets using a roll (hemming bending process), and the predetermined length dimension is set to be slightly longer considering the bending allowance, and after roll rolling, cut according to the size of the rolled steel sheet is important.

  Therefore, when one embodiment of the present invention is described in detail with reference to FIGS. 1 and 2, when lifting and transporting a rolled steel sheet, it is inserted into both ends of the core to damage the ends and corners of the sheet. The inner diameter ring with a flange for protecting the inner diameter is a predetermined plate thickness (T) that matches the inner diameter (d1) and outer diameter (d2) dimensions of the rolled steel metal plate (P). ), A predetermined width (W), and a band-shaped metal plate (1) having a predetermined length (L), and one end of the band-shaped metal plate (1) in the width direction has a predetermined dimension at the skirt (X) (D ′) Folded and rolled so as to be deviated, and the end (1b) of the double-ply plate (E) folded and rolled is further bent into an L shape in the reverse direction, and the length (C) / width (B) A two-layered L-shaped plate with equal or unequal sides is formed, and the vertical plate (1a) portion of the two-layered L-shaped plate is It is composed of a light weight inner diameter ring with a flange characterized by forming an L-shaped inner ring (1 ') with a flange (1b) having a corner portion (1c) with two rounded corners. The

  Next, the metal plate bending procedure according to the present invention will be described. As shown in FIG. 3, a flanged inner diameter ring adapted to the inner diameter (d1) and outer diameter (d2) of the rolled steel sheet (P) is formed. For this purpose, a strip metal plate (1) having a plate thickness dimension (T) of 1.6 mm, a width dimension (W) of 155 mm, and a length dimension (L) of 1650 mm is provided.

  Next, one end in the width direction of the band-shaped metal plate (1) is folded back by a predetermined dimension (A), and the predetermined dimension (D ′) is set so that the hem (X) of the vertical plate (1a) is formed by overlapping two sheets. Bending and rolling (hemming bending process) with a shift of about 45 mm.

  Next, one end portion (1b) of the double-ply plate folded and rolled (hemming bending process) is further folded into an L shape in the reverse direction, and the vertical (C) dimension is 65 mm, and the horizontal (B) dimension is 35 mm. A two-layer L-shaped plate with unequal sides is formed. At this time, the predetermined dimension (C ′) of the vertical plate (1a) folded in two layers is 20 mm.

  Finally, by rolling the vertical plate (1a) portion of the two L-shaped plates, the inner ring (1 ′) with an L-shaped flange (1b) having a corner portion (1c) whose entire cross-section is two-layered ), And the end is cut and welded to dimensions suitable for the inner diameter (d1) and outer diameter (d2) of the rolled steel sheet (P). The outer dimension (D) of the flanged inner diameter ring at this time corresponds to the outer dimension (d2) of the rolled steel sheet (P).

  Also, when using the lightweight inner diameter ring with a flange of the present invention, as in the conventional example of FIGS. 4 (A) and 4 (B), both inner diameter portions of a metal steel plate in which the lightweight inner diameter ring with a flange is wound in a roll shape. It is inserted into (d1), the rope (R) is lifted through the inside of the ring, and transported using a moving means such as a crane.

  The present invention provides a strip-shaped metal plate having a predetermined plate thickness, a predetermined width, and a predetermined length that match the inner and outer diameters of a rolled steel sheet, and one end of the strip-shaped metal plate in the width direction. Is rolled by shifting by a predetermined dimension so that the skirt of the vertical plate becomes one sheet from the two stacked, and the end of the folded two-layered plate is further folded in an L shape in the opposite direction. To form a two-ply L-shaped plate with equal or non-equal vertical and horizontal dimensions, and roll roll the vertical plate part of the two-ply L-shaped plate to maintain the current strength, It has industrial applicability in that it can reduce and reduce the cost of deburring the outer peripheral corners and contribute to the steel-related industry market by making the packing paper difficult to break when packing.

An embodiment of this device is shown, (A) (B) An embodiment of this device is shown, (A) (B) It is a perspective view which shows one Example of this device and shows a metal plate (ringed inner ring) bending procedure. The prior art example of this invention is shown, (A) is a perspective view at the time of inserting and inserting a flanged inner diameter ring into a rolled steel sheet, and (B) is a perspective view showing a lifting and conveying state of the rolled steel sheet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Strip | belt-shaped metal plate 1 'Inner diameter ring with a flange 1a Vertical plate 1b A A Predetermined dimension B Horizontal dimension C Vertical dimension C' Predetermined dimension of a vertical plate part D External dimension of an inner ring with a flange d1 Inner diameter dimension of roll steel plate d2 Roll winding Outer diameter of steel plate D 'Predetermined dimension E Double sheet L Predetermined length P Rolled steel plate R Rope T Predetermined thickness W Predetermined width X Bottom

Claims (1)

  A flanged inner diameter ring that is inserted into the cores at both ends when lifting and transporting a rolled steel sheet to protect against damage to the ends and corners of the steel sheet. A strip-shaped metal plate having a predetermined plate thickness (T), a predetermined width (W), and a predetermined length (L) that match the inner diameter (d1) and outer diameter (d2) dimensions of the metal steel plate (P) wound in a shape (1) is provided, and one end in the width direction of the strip-shaped metal plate (1) is folded and rolled so that the skirt portion (X) is shifted by a predetermined dimension (D ′), and then folded and rolled. The end (1b) of E) is further folded back into an L shape in the opposite direction to form a two-layer L-shaped plate with the same vertical or unequal side in the vertical (C) and horizontal (B) dimensions, and By rolling the vertical plate (1a) of the L-shaped two-ply plate, the entire circumferential cross-section has the L-shaped corner (1c). Lightweight flanged inner diameter ring and forming a flange (1b) with an inner diameter of the ring (1 ') of.

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