Winding frame

Abstract

To provide a reel in which a flange part has a high strength, and of which weight saving is possible.SOLUTION: A reel 10 comprises a winding barrel part 1, and a flange part 2 provided at an end of the winding barrel part 1. The flange part 2 comprises a flange part body 3 having a plurality of veneer materials 105 arranged adjacent to each other, and a metallic reinforcement member 4 which is formed on an external surface 3a of the flange part body 3. The reinforcement member 4 comprises: an outer peripheral part 14 along an outer peripheral edge of the flange part body 3; an inner peripheral part 13 which is provided on an inner peripheral side with respect to the outer peripheral part 14; and one or more connection parts 15 which connect the outer peripheral part 14 and the inner peripheral part 13.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a winding frame.

Background Art

[0002] Wire materials such as electric wires and cables are wound around a winding frame for transportation, storage, etc. The winding frame includes a barrel portion around which the wire material is wound, and a flange portion (flange plate) provided at an end of the barrel portion. The flange portion is configured, for example, by laminating a plurality of composite plates. The strength of the flange portion is enhanced by the structure in which a plurality of composite plates are laminated (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the winding frame is heavy, the burden of material handling in the manufacture of wire materials is large. Since the winding frame is heavy, the load during transportation, etc. is also large.

[0005] One aspect of the present invention aims to provide a winding frame having high strength of the flange portion and capable of weight reduction.

Means for Solving the Problems

[0006] The winding frame according to the first aspect of the present invention includes a winding barrel portion, and a flange portion provided at an end of the winding barrel portion, the flange portion including a flange portion main body having a plurality of single plates arranged adjacent to each other, and a metal reinforcing member provided on an outer surface of the flange portion main body, the reinforcing member including an outer peripheral portion along an outer peripheral edge of the flange portion main body, an inner peripheral portion provided on an inner peripheral side of the outer peripheral portion, and one or more connecting portions connecting the outer peripheral portion and the inner peripheral portion.

[0007] In the winding frame according to the second aspect of the present invention, in the first aspect, the plurality of connecting portions extend radially to the flange body and are arranged at intervals in the circumferential direction of the flange body.

[0008] A winding frame according to a third aspect of the present invention, in the first or second aspect, the flange body further comprises a plate-shaped connecting member that connects adjacent veneers, wherein a first fitting recess is formed on the side surface or end surface of one of the adjacent veneers, into which a part of the connecting member fits in a recessed manner, and a second fitting recess is formed on the side surface or end surface of the other of the adjacent veneers, into which another part of the connecting member fits in a recessed manner.

[0009] In the winding frame according to the fourth aspect of the present invention, in any one of the first to third aspects, a plate-shaped connecting projection is formed on the side surface or end surface of one of the adjacent veneer materials, and a fitting recess is formed on the side surface or end surface of the other of the adjacent veneer materials, into which the connecting projection fits in a concave-concave manner.

[0010] A winding frame according to a fifth aspect of the present invention, in any one of the first to fourth aspects, comprises a central veneer that extends in a straight line and is elongated; a first group of veneers and a second group of veneers arranged on one side in the width direction of the central veneer; and a third group of veneers and a fourth group of veneers arranged on the other side in the width direction of the central veneer, wherein the first group of veneers and the second group of veneers have different extending directions, and the third group of veneers and the fourth group of veneers have different extending directions. [Effects of the Invention]

[0011] According to one aspect of the present invention, a winding frame can be provided that has high strength in the flange portion and is lightweight. [Brief explanation of the drawing]

[0012] [Figure 1] This is a perspective view of the winding frame according to the embodiment. [Figure 2] It is an exploded perspective view of a reel frame according to an embodiment. [Figure 3] It is a front view of a reel frame according to an embodiment. [Figure 4] It is a front view of the flange body of a reel frame according to an embodiment. [Figure 5] It is a side view of a reel frame according to an embodiment. [Figure 6] It is a front view of the inner peripheral portion of a reel frame according to an embodiment. [Figure 7] It is an enlarged perspective view of the flange portion. [Figure 8] It is an enlarged exploded perspective view of the flange portion. [Figure 9] It is an enlarged cross-sectional view of the flange portion. [Figure 10] It is an enlarged perspective view of the flange portion. [Figure 11] It is an enlarged exploded perspective view of the flange portion. [Figure 12] It is an enlarged cross-sectional view of the flange portion.

Mode for Carrying Out the Invention

[0013] Hereinafter, the reel frame according to the present invention will be described with reference to the drawings.

[0014] FIG. 1 is a perspective view of a reel frame 10 according to an embodiment. FIG. 2 is an exploded perspective view of the reel frame 10. FIG. 3 is a front view of the reel frame 10. FIG. 4 is a front view of the flange body 3. FIG. 5 is a side view of the reel frame 10. FIG. 6 is a front view of the inner peripheral portion 13. FIG. 7 is an enlarged perspective view of the flange portion 2. FIG. 7 is a view of part A shown in FIG. 4. FIG. 8 is an enlarged exploded perspective view of the flange portion 2. FIG. 9 is an enlarged cross-sectional view of the flange portion 2. FIG. 9 is an enlarged cross-sectional view of the flange portion 2. FIG. 9 is a view showing the I-I cross section of FIG. 7. FIG. 10 is an enlarged perspective view of the flange portion 2. FIG. 10 is a view of part B shown in FIG. 4. FIG. 11 is an enlarged exploded perspective view of the flange portion 2. FIG. 12 is an enlarged cross-sectional view of the flange portion 2. FIG. 12 is a view showing the II-II cross section of FIG. 10.

[0015] [Reel Frame] As shown in FIGS. 1 and 2, the winding frame 10 includes a winding cylinder portion 1 and two flange portions 2 (flange plates) provided at one and the other ends of the winding cylinder portion 1, respectively. The winding cylinder portion 1 is formed in a cylindrical shape. The winding cylinder portion 1 can wind a wire rod 100 (see FIG. 5) such as an electric wire or a cable.

[0016] The structure of the winding frame 10 will be described using an XYZ orthogonal coordinate system. The X direction is the left-right direction. The Y direction is the up-down direction. The Y direction is orthogonal to the X direction. The Z direction is the direction along the central axis of the winding cylinder portion 1 (axial direction). The circumferential direction is the direction that circulates around the central axis of the winding cylinder portion 1. The radial direction is the direction passing through the central axis on a plane orthogonal to the central axis of the winding cylinder portion 1. Looking from the Z direction is referred to as a plan view.

[0017] The flange portion 2 is in the shape of a disk concentric with the winding cylinder portion 1. The outer diameter of the flange portion 2 is larger than the outer diameter of the winding cylinder portion 1. The flange portion 2 protrudes radially outward from the outer peripheral surface 1a at the end of the winding cylinder portion 1.

[0018] The flange portion 2 includes a flange body 3 and a plurality of reinforcing members 4. As shown in FIGS. 4 and 5, the flange body 3 includes one or more composite plate materials 9 and a plurality of connecting members 8. In this embodiment, the number of composite plate materials 9 is two. The two composite plate materials 9 are overlapped.

[0019] As shown in FIG. 1, the composite plate material 9 includes a plurality of single plate materials 105. The single plate material 105 is in the shape of a long plate. The plurality of single plate materials 105 are arranged with their side end surfaces (one of the side surface and the end surface) abutting against each other. The flange portion 2 is a composite plate material having a plurality of single plate materials 105. The single plate material 105 is formed of, for example, wood.

[0020] As shown in FIG. 4, the plurality of single plate materials 105 include a central single plate material 105A, a first single plate material group 104B, a second single plate material group 104C, a third single plate material group 104D, and a fourth single plate material group 104E.

[0021] The central veneer 105A extends linearly in the Y direction. In Figure 4, the central veneer 105A is formed from the upper edge to the lower edge of the flange portion 2. The central hole 7 is formed in the center of the length of the central veneer 105A.

[0022] The first veneer group 104B and the second veneer group 104C are positioned on one side (+X side) in the width direction relative to the central veneer 105A. The first veneer group 104B has multiple veneers 105B. The veneers 105B extend in the X direction. The multiple veneers 105B are arranged side by side without gaps in the width direction. The multiple veneers 105B are arranged adjacent to each other.

[0023] The second veneer group 104C has multiple veneers 105C. The veneers 105C extend in the Y direction. The multiple veneers 105C are arranged side by side without gaps in the width direction. The multiple veneers 105C are arranged adjacent to each other. The second veneer group 104C is arranged adjacent to the first veneer group 104B on the -Y side.

[0024] The veneer 105B constituting the first veneer group 104B extends in the X direction. The veneer 105C constituting the second veneer group 104C extends in the Y direction. Therefore, the extending directions of the veneer 105 in the first veneer group 104B and the second veneer group 104C are different from those of the other.

[0025] The third veneer group 104D and the fourth veneer group 104E are positioned on the other side (-X side) in the width direction relative to the central veneer 105A. The third veneer group 104D has multiple veneers 105D. The veneers 105D extend in the X direction. The multiple veneers 105D are arranged side by side without gaps in the width direction. The multiple veneers 105D are arranged adjacent to each other.

[0026] The fourth veneer group 104E has multiple veneers 105E. The veneers 105E extend in the Y direction. The multiple veneers 105E are arranged side by side without gaps in the width direction. The multiple veneers 105E are arranged adjacent to each other. The fourth veneer group 104E is arranged adjacent to the third veneer group 104D on the +Y side.

[0027] The veneer 105D constituting the third veneer group 104D extends in the X direction. The veneer 105E constituting the fourth veneer group 104E extends in the Y direction. Therefore, the extension directions of the veneers 105 in the third veneer group 104D and the fourth veneer group 104E are different from those of the other.

[0028] The first veneer group 104B and the fourth veneer group 104E are adjacent in the X direction via the central veneer 105A. The veneer 105 in the first veneer group 104B and the fourth veneer group 104E have different extension directions. The second veneer group 104C and the third veneer group 104D are adjacent in the X direction via the central veneer 105A. The veneer 105 in the second veneer group 104C and the third veneer group 104D are in different directions.

[0029] An exit hole 6 is formed in the flange body 3. The exit hole 6 is a hole for pulling out the end (starting end) of the wire material that is wound around the winding drum 1 to the outside of the flange 2. The exit hole 6 penetrates the flange body 3 (single sheet material 105) in the thickness direction. The exit hole 6 is an arc-shaped slit along the circumferential direction of the flange 2. In a plan view, the exit hole 6 is formed radially outward from the outer circumferential surface 1a of the winding drum 1. In a plan view, the exit hole 6 is formed in a position close to the outer circumferential surface 1a of the winding drum 1.

[0030] As shown in Figures 7 to 9, the connecting member 8 joins adjacent veneer materials 105 by interlocking grooves and protrusions. Of two adjacent veneer pieces 105, the side surface 105a of one veneer piece 105 faces the side surface 105b of the other veneer piece 105. A first fitting recess 11 is formed on the side surface 105a of one veneer piece 105. A second fitting recess 12 is formed on the side surface 105b of the other veneer piece 105. The first fitting recess 11 and the second fitting recess 12 have a rectangular parallelepiped-shaped internal space whose longitudinal direction is along the X direction.

[0031] The connecting member 8 connects adjacent veneer pieces 105. The connecting member 8 is shaped like a long plate (for example, rectangular) with its longitudinal direction aligned with the X direction. The connecting member 8 is shaped like a plate parallel to the XY plane. The connecting member 8 is shaped like a plate parallel to the veneer pieces 105. The connecting member 8 is formed thinner than the veneer pieces 105. The connecting member 8 is made of wood, for example.

[0032] The first portion 8A, which is part of the connecting member 8, enters into the first fitting recess 11 and engages with the first fitting recess 11. The fitting between the first portion 8A and the first fitting recess 11 can be described as a concave-convex fitting, since the convex portion of the first portion 8A enters into the first fitting recess 11.

[0033] The thickness of the first portion 8A is approximately the same as the width of the first mating recess 11, or slightly less than the width of the first mating recess 11. The thickness of the first portion 8A may be greater than the width of the first mating recess 11, provided that the first portion 8A can be fitted into the first mating recess 11. It is desirable that the first portion 8A is press-fitted into the first mating recess 11 and fixed to the inner surface of the first mating recess 11 by friction.

[0034] The second part 8B, which is another part of the connecting member 8, fits into the second fitting recess 12. The fitting between the second part 8B and the second fitting recess 12 can be described as a concave-convex fitting, since the convex part of the second part 8B fits into the second fitting recess 12.

[0035] The thickness of the second portion 8B is approximately the same as the width of the second fitting recess 12, or slightly less than the width of the second fitting recess 12. The thickness of the second portion 8B may be greater than the width of the second fitting recess 12, provided that the second portion 8B can be fitted into the second fitting recess 12. It is desirable that the second portion 8B be press-fitted into the second fitting recess 12 and fixed to the inner surface of the second fitting recess 12 by friction.

[0036] The first portion 8A of the connecting member 8 fits into the first fitting recess 11, and the second portion 8B of the connecting member 8 fits into the second fitting recess 12, thereby joining adjacent veneer materials 105 via the connecting member 8.

[0037] As shown in Figure 4, in the first veneer group 104B, adjacent veneers 105 are connected to each other by multiple connecting members 8 that are positioned at different locations along the length. Similarly, in the second veneer group 104C, the third veneer group 104D, and the fourth veneer group 104E, adjacent veneers 105 are connected to each other by multiple connecting members 8.

[0038] A connecting projection 108 is formed on the end face of a veneer 105 whose end faces another veneer 105. Specifically, the connecting projection 108 is formed on the end face of the -X side of veneer 105B, the end face of the +Y side of veneer 105C, the end face of the +X side of veneer 105D, and the end face of the -Y side of veneer 105E.

[0039] The -X end of veneer 105B is abutted against the side of central veneer 105A. The +Y end of veneer 105C is abutted against the side of veneer 105B. The +X end of veneer 105D is abutted against the side of central veneer 105A. The -Y end of veneer 105E is abutted against the side of veneer 105D.

[0040] As shown in Figures 10 to 12, the connecting projection 108 connects adjacent veneer members 105. The joint between veneer member 105E and veneer member 105D (part B shown in Figure 4) will be explained as an example.

[0041] The connecting projection 108 protrudes from the -Y side end face 105Ec of the veneer 105E toward the -Y side. The connecting projection 108 is long and plate-shaped (for example, rectangular) with its longitudinal direction aligned with the X direction. The connecting projection 108 is plate-shaped parallel to the XY plane. The connecting projection 108 is plate-shaped parallel to the veneer 105E. The connecting projection 108 is formed integrally with the veneer 105E. The connecting projection 108 is formed thinner than the veneer 105. The connecting projection 108 is made of wood, for example.

[0042] A fitting recess 111 is formed on the side surface 105Dc of the veneer material 105D. The fitting recess 111 has a rectangular parallelepiped-shaped internal space whose longitudinal direction is aligned with the X direction.

[0043] The connecting projection 108 enters into the fitting recess 111 and engages with the fitting recess 111. The engagement between the connecting projection 108 and the fitting recess 111 is a concave-convex fitting.

[0044] The thickness of the connecting projection 108 is approximately the same as the width of the fitting recess 111, or slightly smaller than the width of the fitting recess 111. The thickness of the connecting projection 108 may be greater than the width of the fitting recess 111, provided that the connecting projection 108 can be fitted into the fitting recess 111. It is desirable that the connecting projection 108 is press-fitted into the fitting recess 111 and fixed to the inner surface of the fitting recess 111 by friction.

[0045] The veneer material 105E is joined to the veneer material 105D by the interlocking of the connecting projection 108 with the fitting recess 111.

[0046] As shown in Figure 4, the -X end of veneer 105B is joined to the central veneer 105A by a connecting projection 108. The +Y end of veneer 105C is joined to veneer 105B by a connecting projection 108. The +X end of veneer 105D is joined to the central veneer 105A by a connecting projection 108. The -Y end of veneer 105E is joined to veneer 105D by a connecting projection 108.

[0047] As shown in Figures 2 and 5, an annular positioning groove 2c is formed on the inner surface of the flange body 3. The positioning groove 2c is circular in shape and concentric with the flange body 3. The end of the body support 23 fits into the positioning groove 2c.

[0048] As shown in Figure 5, the winding drum section 1 comprises one or more intermediate support plates 22 and a drum section 23. In this embodiment, there are three intermediate support plates 22. The three intermediate support plates 22 are spaced apart in the axial direction (Z direction). The intermediate support plates 22 are circular in shape and concentric with the flange section body 3.

[0049] As shown in Figure 3, the reinforcing member 4 comprises an inner circumference portion 13, an outer circumference portion 14, and one or more connecting portions 15. The reinforcing member 4 is formed on the outer surface 3a of the flange body 3. The reinforcing member 4 is made of metal. The metal constituting the reinforcing member 4 is, for example, steel or stainless steel.

[0050] The inner circumference portion 13 is formed in a plate shape parallel to the XY plane. The inner circumference portion 13 is located on the inner circumference side of the outer circumference portion 14. The inner circumference portion 13 is located, for example, in the center of the flange body 3. The inner circumference portion 13 is superimposed on the outer surface 3a of the flange body 3 and fixed to the flange body 3 by fasteners. The fasteners include, for example, bolts (fasteners) and nuts (fastening receivers).

[0051] As shown in Figure 6, a plurality of fitting protrusions 13a are formed on the outer edge of the inner circumference 13. The plurality of fitting protrusions 13a are formed at different positions in the circumferential direction. Preferably, the plurality of fitting protrusions 13a are positioned to be rotationally symmetric with respect to the center of the reinforcing material 4 by n times (where n is 2 or more). In this embodiment, the plurality of fitting protrusions 13a are formed to be rotationally symmetric with respect to the center of the reinforcing material 4 by three times. A central hole 13b is formed in the center of the inner circumference 13. The central hole 13b is positioned to overlap with the central hole 7 of the flange body 3 (see Figure 3).

[0052] As shown in Figure 3, the outer periphery 14 is formed in a plate shape parallel to the XY plane. The outer periphery 14 is formed in an annular plate shape concentric with the flange body 3. The outer periphery 14 is formed along the outer edge of the flange body 3. The outer diameter of the outer periphery 14 is approximately equal to the outer diameter of the flange body 3. The outer periphery 14 is composed of a plurality of arc-shaped divisions 16. The inner diameter of the outer periphery 14 is larger than the outer dimensions of the inner periphery 13. Therefore, the outer periphery 14 is radially separated from the inner periphery 13.

[0053] A fitting projection 16a is formed at one end of the divided portion 16. A fitting recess 16b is formed at the other end of the divided portion 16. The divided portions 16 are connected to adjacent divided portions 16 by the fitting projection 16a fitting into the fitting recess 16b.

[0054] Multiple fitting protrusions 14a are formed on the inner periphery of the outer peripheral portion 14. The multiple fitting protrusions 14a are formed at different positions in the circumferential direction. Preferably, the multiple fitting protrusions 14a are positioned to be rotationally symmetrical with respect to the center of the reinforcing material 4 by n times (where n is 2 or more). In this embodiment, the multiple fitting protrusions 14a are formed to be rotationally symmetrical with respect to the center of the reinforcing material 4 by three times.

[0055] The outer periphery 14 is superimposed on the outer surface 3a of the flange body 3 and fixed to the flange body 3 by fasteners. The fasteners include, for example, bolts (fasteners) and nuts (fastening receivers).

[0056] The connecting portion 15 connects the inner circumference portion 13 and the outer circumference portion 14. The connecting portion 15 is formed in the shape of a long plate parallel to the XY plane. The connecting portion 15 extends along the radial direction. Multiple connecting portions 15 are formed at different positions in the circumferential direction. Preferably, the multiple connecting portions 15 are positioned to be rotationally symmetrical n times (where n is 2 or more) with respect to the center of the reinforcing material 4. In this embodiment, the multiple connecting portions 15 are formed to be rotationally symmetrical 3 times with respect to the center of the reinforcing material 4. The multiple connecting portions 15 are arranged radially.

[0057] A fitting recess 15a is formed at the radially inner end of the connecting portion 15, which engages with the fitting projection 13a. The connecting portion 15 is connected to the inner circumference 13 by the fitting recess 15a engaging with the fitting projection 13a. A fitting recess 15b is formed at the radially outer end of the connecting portion 15, which engages with the fitting projection 14a. The connecting portion 15 is connected to the outer circumference 14 by the fitting recess 15b engaging with the fitting projection 14a.

[0058] The connecting portion 15 is superimposed on the outer surface 3a of the flange body 3 and fixed to the flange body 3 by fasteners. The fasteners include, for example, bolts (fasteners) and nuts (fastening receivers).

[0059] [Effects of the winding frame in this embodiment] In the winding frame 10, the reinforcing member 4 comprises an outer circumference portion 14, an inner circumference portion 13, and a connecting portion 15 that connects the outer circumference portion 14 and the inner circumference portion 13. This structure makes the reinforcing member 4 lightweight. The reeling frame 10 can be given sufficient strength to the flange portion 2 by the reinforcing material 4. Therefore, the thickness of the flange portion body 3 can be reduced. This reduces the weight of the flange portion 2. Consequently, the reeling frame 10 can be made lighter. Thus, the burden of material handling in wire rod manufacturing can be reduced. The burden of transporting the reeling frame 10 can also be reduced, thus reducing fuel costs required for transportation.

[0060] Since the reinforcing material 4 has a structure in which multiple connecting parts 15 are arranged at intervals in the circumferential direction, it is possible to increase the strength of the flange part 2 while keeping it lightweight.

[0061] In the winding frame 10, adjacent veneer sheets 105 are joined by connecting members 8 that fit into fitting recesses 11 and 12. Therefore, adjacent veneer sheets 105 can be firmly joined. By using the connecting members 8, the veneer sheets 105 can be joined without using nails or other metal fittings. Therefore, the assembly and disassembly of the winding frame 10 can be made easier. During disassembly, the effort required to separate the wood and metal fittings can be reduced. Thus, the time required for the assembly and disassembly of the winding frame 10 can be shortened.

[0062] In the winding frame 10, adjacent veneer materials 105 are joined by a recessed-recessed fitting mechanism using connecting members 8 and connecting protrusions 108. Therefore, the mechanical strength of the flange portion 2 is increased.

[0063] In the reel frame 10, sufficient strength can be provided to the flange portion 2, allowing the thickness of the flange portion 2 to be reduced. Therefore, the weight of the flange portion 2 can be reduced, making the reel frame 10 lighter. Consequently, the burden of material handling can be reduced.

[0064] In the winding frame 10, adjacent veneer sheets 105 are connected by connecting members 8 and connecting protrusions 108. Therefore, adjacent veneer sheets 105 can be firmly joined without using nails or other metal fittings.

[0065] In the winding frame 10, the extension directions of the veneers 105 differ between the first veneer group 104B and the second veneer group 104C. The extension directions of the veneers 105 differ between the third veneer group 104D and the fourth veneer group 104E. Thus, because the winding frame 10 is composed of multiple veneer groups with different extension directions of the veneers 105, its mechanical strength against external forces applied to the flange 2 in multiple directions can be increased. Therefore, the winding frame 10 can be given high durability.

[0066] In the winding frame 10, a central veneer 105A is provided between the veneer groups 104B and 104C and 104D and 104E. The central hole 7 is formed in the central veneer 105A. When the winding frame 10 is supported by the central hole 7, a large force is applied to the flange 2 (more specifically, the periphery of the central hole 7), but the winding frame 10 can distribute this force and increase the durability of the winding frame 10.

[0067] The main body of the flange 3 is mostly made of wood. Compared to other materials (for example, steel), wood produces less CO2 emissions during manufacturing. Therefore, the reel frame 10 is suitable from an environmental protection standpoint.

[0068] The technical scope of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention. The number of connecting members used to join adjacent veneer pieces is not particularly limited. The number of connecting members used to join adjacent veneer pieces may be one or multiple.

[0069] In the winding frame 10 shown in Figure 1, the flange body 3 is composed of two composite panels 9, but the number of composite panels 9 constituting the flange body 3 may be one or multiple (any number of two or more). By overlapping multiple composite panels 9, the strength of the flange body 3 can be increased.

[0070] The reel frame 10 shown in Figure 1 comprises a reel body 1 and flanges 2 provided at both ends of the reel body 1. However, the flanges may be provided at only one end of the reel body. The flanges are not limited to the ends of the reel body; they may be provided at any position along the length of the reel body.

[0071] As shown in Figure 7, the structure for joining adjacent veneer materials with a connecting member may be provided on the side surface of the veneer material or on the end surface of the end. That is, the first fitting recess and the second fitting recess may be formed on the side surface of the veneer material or on the end surface of the end of the veneer material.

[0072] As shown in Figure 10, the structure for joining adjacent veneer materials by connecting protrusions may be provided on the side surface of the veneer material or on the end surface of the end. That is, the connecting protrusions may be formed on the side surface of the veneer material or on the end surface of the end. The fitting recess that fits into the connecting protrusions may be formed on the side surface of the veneer material or on the end surface of the end of the veneer material.

[0073] Furthermore, without departing from the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above-described embodiments and modifications may be combined as appropriate. [Explanation of Symbols]

[0074] 1...Rolling body, 2...Flange, 3...Flange body, 4...Reinforcement member, 8...Connecting member, 10...Rolling frame, 11...First fitting recess, 12...Second fitting recess, 13...Inner circumference, 14...Outer circumference, 15...Connecting part, 104B...First veneer group, 104C...Second veneer group, 104D...Third veneer group, 104E...Fourth veneer group, 105A...Central veneer, 105, 105B, 105C, 105D, 105E...Veneer, 108...Connecting protrusion, 111...Fitting recess

Claims

1. It comprises a winding drum portion and a flange portion provided at the end of the winding drum portion, The aforementioned flange portion is A flange body having multiple veneer materials arranged adjacent to each other, The flange portion body is provided with a metal reinforcing member on its outer surface, The reinforcing member comprises an outer peripheral portion along the outer peripheral edge of the flange body, an inner peripheral portion provided on the inner peripheral side of the outer peripheral portion, and one or more connecting portions connecting the outer peripheral portion and the inner peripheral portion. The multiple veneer materials include a central veneer material that is a long, straight plate extending in a linear manner, The first group of veneers and the second group of veneers are arranged on one side in the width direction of the central veneer, This includes a third group of veneers and a fourth group of veneers arranged on the other side in the width direction of the central veneer, The first group of veneers and the second group of veneers have different extending directions. The third group of veneers and the fourth group of veneers have different extending directions. The first veneer group, the second veneer group, the third veneer group, and the fourth veneer group each have multiple veneers arranged adjacent to each other. The first veneer group and the second veneer group are arranged in the longitudinal direction of the central veneer. The third veneer group and the fourth veneer group are arranged in the longitudinal direction of the central veneer. The first veneer group and the fourth veneer group are arranged in the width direction of the central veneer, separated by the central veneer. The veneers constituting the second veneer group and the fourth veneer group extend along the central veneer, Winding frame.

2. The multiple connecting portions extend radially to the flange body and are spaced apart in the circumferential direction of the flange body. The winding frame according to claim 1.

3. The flange body further comprises a plate-shaped connecting member that connects adjacent single-plate materials, A first fitting recess is formed on the side or end face of one of the adjacent veneer materials, into which a part of the connecting member fits in a recessed and concave manner. A second fitting recess is formed on the side surface or end surface of the other of the adjacent veneer materials, into which another part of the connecting member fits in a recessed and recessed manner. The winding frame according to claim 1.

4. A plate-shaped connecting projection is formed on the side or end face of one of the adjacent veneer materials. A fitting recess is formed on the side or end face of the other of the adjacent veneer materials, into which the connecting protrusion fits in a recessed manner. The winding frame according to claim 1.

5. The flange portion has a guide hole formed therethrough in the thickness direction of the flange portion. The winding frame according to claim 1.

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