JP2020007149A - Winding drum - Google Patents

Abstract

To provide a winding drum that has a simple configuration, reduces the number of parts, is easy to assemble and disassemble, and saves space when storing and transporting.SOLUTION: There is provided a long member winding drum formed by arranging a disk-shaped brim member on both left and right sides of a cylindrical body member 2, the cylindrical body member 2 including: a flat plate-like member 7a formed so as to be deformable into a cylindrical shape; and a core member 8 disposed in a body member and holding the cylindrical shape when the plate-like member 7a is deformed into the cylindrical shape.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a winding drum, and more particularly, to a winding drum for winding a long object such as a cable, an electric wire, and a wire.

  In general, a winding drum for winding a long object such as a cable includes a core member (= body member) formed in a cylindrical shape while closely adhering a number of long plates (= san plate) in the width direction, and It is constituted by a pair of disk-shaped brim plates attached to both sides of the material. Conventional winding drums are all made of wood except for parts such as bolts, and also require skill in assembling such as attaching a brim plate to a core material. In addition, the dimensions of each component are likely to fluctuate because it is made of wood, there is a risk of depletion of forest resources, and moreover, taking up space according to its size and shape when storing and transporting the winding drum, There is a problem that the wound electric wire is easily damaged by a step or a gap between the plates. For this reason, in recent years, resin moldings that can be easily mass-produced have been provided.

  However, once made into a completed shape, regardless of whether it is made of wood or resin, the size becomes considerably large, and there is a disadvantage that a large installation space is required. To solve this problem, the "drum for electric wires" disclosed in Patent Document 1 uses a support bar in place of a plate, connects between them in a rope ladder shape with a rope, and places both ends inside the drum support plate. The core material is constituted by being supported by the formed disk-shaped ram support portion, thereby enabling compact storage. Further, a "foldable winding drum for cable" disclosed in Patent Document 2 is configured such that main members such as a slat plate, a brim plate and the like are made of a resin molded product, and each slat plate can be attached and detached in a parallel state at an intermediate portion thereof. The drum can be divided into two parts. Further, when the two parts are divided, each of the plates can be pivoted outward with the collar plate as a fulcrum, thereby facilitating assembly and recovery after use. I have. Further, the “winding drum for cable” disclosed in Patent Document 3 is configured such that each of the slats and the pair of slats are made of resin, each of the slats can be bent outward with respect to the brim, and the thickness in the axial direction is increased. Can be reduced.

JP 2000-21820 A JP-A-2002-104740 JP-A-2004-43176

  However, according to each of the conventional winding drums, the configuration is complicated, and the number of parts increases, so that an increase in cost is inevitable. In addition, when assembling and disassembling, there is a possibility that the structure and procedure cannot be performed unless the structure and procedure are grasped in advance by a manual or the like. Further, since the flange plate is also made of resin, it slides easily when it rains, so that there is a disadvantage in safety.

  Therefore, the present invention has been made in view of such a problem, and provides a winding drum that can reduce the number of parts by a simple configuration to achieve cost reduction, as well as achieve safety measures and simplify assembly and disassembly. The purpose is to:

According to a first aspect of the present invention, there is provided a winding drum for a long member formed by arranging a disk-shaped brim member on both left and right sides of a cylindrical body member. In the above, the body member is a flat plate-like member formed so as to be deformable into a cylindrical shape, and a center core that is arranged in the body member when the plate-like member is deformed into a cylindrical shape and holds the cylindrical shape. And a member.
In the first aspect of the present invention, the plate-like member functions as a core material for winding a linear object such as an electric wire by winding the body member into a cylindrical shape. I do. In this case, there is an effect that the linear body to be wound is stored compactly in a wound state. Further, the core member is disposed in the body member when the plate member is deformed into a cylindrical shape, and has an effect of supporting and holding the cylindrical shape of the body member from the inside.
Such a trunk member can be unfolded and flattened when not in use, so that a plurality of trunk members can be stored and transported in a stacked manner.

The winding drum according to a second aspect of the present invention is the winding drum according to the first aspect, wherein the plate-shaped member is formed in a belt shape along at least one of the first edges on the side where the collar member is not disposed. And a flat portion that forms an area other than the warped portion.
The second invention having the above configuration has the same operation as the operation according to the first invention.
Further, when the flat body member is rolled and deformed into a cylindrical shape, the portion near the first edge can be maintained in a curved state even if the body member itself has flexibility. difficult. For this reason, as the thickness of the plate-like member increases, when the plate-like member is formed into a cylindrical shape, one of its peripheral surfaces protrudes outward, and the end surface shape of the body member is cylindrical. Instead, it was easy to become a drop type.
On the other hand, in the second invention, the plate-shaped member has a warped portion along the first edge, so that the first edge portion is always curved in an arc shape. Have.
When a plate-like member having such a warped portion is curved into a cylindrical shape, the warped portion automatically forms a part of an arc, and a continuous substantially circular shape is formed together with the curved flat portion. Is formed. As a result, the plate member according to the second aspect of the present invention has an effect of making the end face shape approximate to a substantially circular shape when it is formed into a cylindrical shape.

A winding drum according to a third aspect of the present invention is a long member winding drum formed by arranging a disk-shaped brim member on both left and right sides of a cylindrical body member, wherein the body member has a cylindrical shape. A flat plate-shaped member formed so as to be deformable into a shape, and a plurality of ribs provided on a surface of the plate-shaped body member, which buffer each other when the body member is deformed into a cylindrical shape. And a plurality of ribs for maintaining a cylindrical shape.
In the third aspect of the present invention, the trunk member has the same function as the trunk member in the first aspect. Further, the plurality of ribs in the third invention are arranged inside the cylindrical body when the plate-shaped member is deformed into a cylindrical shape and reinforce the plate-shaped member, and make the outer shape of the cylindrical body a desired value. It has the action of:
Further, since the plate-like member and the plurality of ribs can be flattened by being unfolded when not in use, the plate-like member provided with the plurality of ribs can be stacked and stored and transported. Having.

A winding drum according to a fourth invention is characterized in that, in each of the first to third inventions, the body member is formed of a flexible material.
According to the fourth aspect of the present invention, in addition to the same operations as those of the first to third aspects described above, the trunk member is formed of a flexible material, so that the It is not necessary to separately provide a configuration for making the body member deformable into a cylindrical shape.
As a result, according to the fourth aspect, there is an effect that the structure of the trunk member is simplified.

According to a fifth aspect of the present invention, the winding drum according to any one of the first to fourth aspects, further comprising a connection structure for detachably attaching the body member to the collar member. It is.
The fifth invention having the above configuration has the same operation as the above-described first to fourth operations. In addition, in the fifth aspect, when the winding target such as an electric wire is wound around the cylindrical body member, the wound target protrudes from the end surface of the body member and is unwound. It has the effect of preventing it from being lost.
Furthermore, since the fifth invention has a connection structure for detachably attaching the trunk member to the collar member, when the fifth invention is not used, the collar member can be removed from the trunk member. It has the effect of enabling disassembly and deployment to be compactly stored and stored.

According to a sixth aspect of the present invention, in the winding drum according to the fifth aspect, the connection structure is formed on the insertion portion provided on the second end side of the body member on the side where the collar member is disposed, and on the collar member. And a concave portion for receiving the insertion portion, wherein the cross-sectional shape in the thickness direction of the insertion portion has a tapered shape in which the thickness of the body member decreases as approaching the second end surface, and when the insertion portion is pushed into the concave portion, , Wherein the second edge is not in contact with the bottom surface of the recess.
The sixth invention having the above configuration has the same operation as the operation according to the fifth invention. Further, in the sixth invention, the cross section in the thickness direction of the insertion portion is tapered, and when this insertion portion is pushed into the recess formed in the collar member, the second edge of the tip of the insertion portion is formed in the recess. By configuring so as not to contact the bottom, even when the trunk member and the brim member expand or contract due to a change in the outside air temperature, the trunk member and the brim member are always in close contact with each other.
More specifically, for example, in the case where the width of the concave portion expands due to the expansion of the collar member due to a change in the outside air temperature, the insertion portion on the body member side slides and enters a deeper position of the concave portion, The close contact between the trunk member and the collar member is maintained. On the other hand, for example, when the flange member contracts due to a change in the outside air temperature and the width of the concave portion is reduced, the insertion portion on the body member side is slightly pushed out from the concave portion, so that the close contact state between the body member and the collar member is obtained. Is maintained.
As described above, in the sixth aspect, even when the collar member or the trunk member expands or contracts due to a change in the outside air temperature, a gap is formed between the insertion portion and the concave portion, or the insertion portion is removed from the concave portion. They are not extruded and separated from each other.

According to a seventh aspect of the present invention, in the winding drum according to any one of the first to sixth aspects, the plate-shaped member is provided on each of the first edges on the side where the collar member is not disposed, and overlaps with each other. It is characterized by having a connecting part which is integrated as possible.
According to the seventh aspect of the present invention, in addition to the same operation as the above-described first to sixth aspects, the connecting portion provided at the first edge of the plate-like member is a cylindrical member. It has the effect of maintaining the state of being rounded.

The winding drum according to an eighth aspect is the winding drum according to the seventh aspect, wherein one of the connecting portions includes a hook portion protruding toward a contact surface with the other connecting portion, and the other of the connecting portions has a thickness direction. A hole is formed through the hole, and a hook is inserted into the hollow portion. The hole has a clearance for sliding the hook in a direction to increase or decrease the outer diameter of the cylindrical body member. It is characterized by the following.
According to the eighth aspect of the present invention, in addition to the same action as that of the seventh aspect described above, a hook protruding from the surface of one connecting portion is passed through the thickness direction of the other connecting portion. By inserting the connecting portion having the hook portion into the formed hole portion, the connecting portion having the hook portion has an effect of engaging with the other connecting portion having the hole portion.
As a result, the connecting portion provided with the hook portion and the connecting portion provided with the hole overlap with each other, are detachably connected and integrated, and have an effect of holding the plate member in a cylindrical shape.
Further, the clearance provided in the hole of the other connecting portion is such that when the hook portion projecting from the one connecting portion is inserted into the hole formed in the other connecting portion and latched, the cylindrical portion is formed. The hook has a function to slide in the circumferential direction of the plate-shaped member (body member).
This has the effect of making the outer diameter (diameter) of the trunk member adjustable.

A winding drum according to a ninth aspect is the winding drum according to the eighth aspect, wherein the collar member is made of wood, and the body member is made of synthetic resin.
In the ninth aspect of the present invention, the collar member has an effect that the collar member of the existing winding drum made of wood can be diverted.
Further, since the trunk member of the ninth invention is made of a synthetic resin, the trunk member can be mass-produced by molding.
The outer diameter (diameter) of the trunk member according to the ninth invention is adjustable, so that, for example, a fitting recess for fitting the second side surface side of the cylindrically molded trunk member to the collar member. When forming, even if the outer diameter (diameter) of the recess for fitting is slightly different from each other, the outer diameter (diameter) of the cylindrical body member is finely adjusted (larger or smaller) as desired. This has the function of enabling fitting into the collar member.

According to the first aspect as described above, the trunk member can be disassembled into two parts, a plate member and a center member, when not in use. According to the first aspect, the number of components can be reduced with a simple configuration, and the assembling and disassembling can be simplified.
Further, both the disassembled plate-like member and the central member in the first invention can be stacked and stored or transported.
Therefore, according to the first aspect, the space occupied by each component when not in use can be reduced, and the space occupied during transport can also be reduced, so that a winding drum that is easy to handle can be provided. .

According to a second aspect of the present invention, in addition to the same effects as those of the first aspect described above, the plate-like member constituting the trunk member is provided with a warped portion and a flat portion. In this case, the first edge near the side where the collar member is not disposed can be constantly warped (curved).
As a result, when the plate-shaped member according to the second invention is deformed into a cylindrical shape, there is an effect that the end face shape can be approximated to a substantially circular shape.
In this case, when a wire to be wound, for example, an electric wire or the like is wound on a body member having a substantially circular cross section perpendicular to the central axis, the circumferential surface of the body member has a smooth curve or polygonal shape. Therefore, it is possible to prevent an unintended load (deformation or bending) from continuing to act locally on the winding target.
As a result, when the winding target is wound around the winding drum of the second invention and stored for a long time, the risk of deterioration (deformation or disconnection) of the winding target can be reduced.
Therefore, according to the second aspect, it is possible to provide a winding drum having excellent quality retention of an object to be wound.

According to a third aspect, a rib having the same effect as that of the core member of the first aspect is integrally provided on the plate-shaped member. According to the third aspect of the present invention, since the plurality of ribs and the plate-like member are integrated, the number of parts of the third aspect of the present invention can be made smaller than that of the first aspect of the present invention. It has the effect that can be done.
Thus, according to the third aspect, it is possible to provide a winding drum that is easier to store and transport when not in use.

According to a fourth aspect of the present invention, in addition to the same effects as those of the first to third aspects, each of the plate-like members is formed into a rectangular shape so that the plate-like member can be formed into a cylindrical shape. It is not necessary to devise structural measures such as joining the members with a flexible material, so that the structure of the body member can be further simplified.
According to the fourth aspect, the body member can be manufactured by molding.
For example, when a synthetic resin is used as the material of the body member, there is an effect that a body member with high dimensional accuracy can be mass-produced at low cost.

The fifth invention has the same effect as the above-described first to fourth inventions. In addition, the fifth invention includes the connecting structure for detachably attaching the collar member to the trunk member, so that the trunk member and the collar member can be disassembled when not in use. Furthermore, since the trunk member can be developed in a flat plate shape, the trunk member and the brim member can be compactly stored and stored, and further transported as needed.
In addition, when the material of the collar member is particularly specified to be wood, the collar member can be made hard to slip when the fifth invention is used outdoors during rainfall or the like. As a result, according to the fifth aspect, it is possible to provide a winding drum with particularly excellent safety.
In addition, when an existing wooden brim member is recycled and used as the brim member, the cost required for manufacturing the brim member can be reduced. As a result, according to the fifth aspect of the invention, there is an effect that the winding drum having a small variation in dimensional accuracy of the trunk member and a compact storage and transport mode can be provided at low cost.

According to a sixth aspect of the present invention, in addition to the same effect as that of the fifth aspect, when the sixth aspect of the present invention is used outdoors in the open air, the trunk member or the brim member expands or shrinks with a change in the outside air temperature. When contracted, it is possible to prevent the state of close contact between the two at the connection portions.
In this case, it is possible to preferably prevent the occurrence of connection failure such as wobble or rattling at the connection portion between the trunk member and the collar member when the sixth invention is used.
As a result, according to the sixth aspect, it is possible to provide a high quality rotary drum having good shape retention of a product even when used outdoors in the open field.

According to the seventh aspect, in addition to the same effects as those of the first to sixth aspects, the plate-shaped member (body member) can be held in a cylindrical shape.
As a result, according to the seventh aspect, the body member can be easily handled at the time of assembling the winding drum, so that the winding drum can be efficiently assembled.

According to an eighth aspect of the present invention, in addition to the same effects as the seventh aspect of the invention, the outer diameter (diameter) of the cylindrical body member is adjustable, so that, for example, a concave portion for fitting into each flange member is provided. When a cylindrically shaped body member is fitted into the fitting concave portion, even if the outer diameter (diameter) of the fitting concave portion is not uniform, the cylindrical body member is formed on the collar member. The members can be connected and integrated.
Therefore, according to the eighth aspect, the connectivity between the trunk member and the collar member can be improved.

According to the ninth aspect, as the brim member of the winding drum, the brim member of the existing winding drum made entirely of wood can be recycled.
Further, in the ninth invention, since the trunk member is made of synthetic resin, the trunk member can be mass-produced by molding. That is, in the ninth aspect, a trunk member having high dimensional accuracy can be efficiently mass-produced.
On the other hand, when an existing wooden collar member is recycled and used, the dimensional accuracy of the fitting concave portion in the collar member is inferior to the dimensional accuracy of the molded body member.
However, in the ninth aspect, since the outer diameter (diameter) of the cylindrical trunk member is adjustable, the trunk member having high dimensional accuracy can be connected to the collar member having low dimensional accuracy without any trouble.
Therefore, according to the ninth aspect, it is possible to manufacture the winding drum at low cost and with low labor using the brim-shaped member that is a recycled product and the base member (body member) that is a molded product.

It is a perspective view showing one embodiment of a winding drum concerning the present invention. It is a left view of the winding drum shown in FIG. It is front sectional drawing of the winding drum shown in FIG. It is a figure showing the initial shape of the drum member which constitutes a winding drum. It is the side view and front sectional drawing after assembling completion of a torso member. It is a top view showing composition of a trunk part in other embodiments. It is a perspective view of a connection part. It is a perspective view of a core member. It is a perspective view of the trunk | drum member at the time of installation of a core member. It is the figure which looked at the base member in the developed state from the end face side in the longitudinal direction. (A) It is a partial sectional view of a connection structure of a trunk member and a brim member in another embodiment, and (b) is a partial sectional view showing a state before a trunk member and a brim member are connected in another embodiment. (C) It is the elements on larger scale of the connection structure of the trunk | drum member and the brim member in another embodiment. It is a partial view in a perpendicular section to a central axis of a base member (body member) formed in a cylindrical shape.

[Configuration of winding drum]
Hereinafter, a winding drum according to the present invention will be described in detail based on a preferred embodiment. FIG. 1 is a perspective view showing an embodiment of the winding drum according to the present invention, FIG. 2 is a left side view of the winding drum shown in FIG. 1, and FIG. 3 is a front sectional view thereof. The illustrated take-up drum 1 is generally provided with a body member 2 formed in a cylindrical shape, and a pair of disk-shaped brim members 3 and 3 attached to both side ends of the body member 2. The flange members 3 and 3 and the body member 2 are fixed by, for example, four bolts 4 and 4 and nuts 5 and 5, respectively. The body member 2 is configured by bending a flat base member 7 into a cylindrical shape as described later. The body member 2 is formed of a synthetic resin, and is manufactured by, for example, pressing a used wire covering material (PVC: polyvinyl chloride mixture, PE: polyethylene, FEP: Teflon (registered trademark)). You may. On the other hand, the brim members 3, 3 may be made of a conventional wood so that they do not slip on the ground even when it rains.
It is not particularly necessary to specify the material of the collar members 3 and 3 as wood, and an optimal material may be selected and used according to the intended use of the winding drum 1 of the present embodiment. Therefore, the collar members 3 may be made of synthetic resin other than wood, metal, or the like. When the material of the brim members 3 and 3 is made of a material other than wood, it is desirable to select a material that is unlikely to cause deterioration or dimensional change of the brim members 3 and 3 even when exposed outdoors for a long time.

The body member 2 is formed by making a flat base member 7 as shown in FIGS. 4A and 4B into a cylindrical shape. The base member 7 includes a rectangular thin plate member 7a and a plurality of ribs 7b, 7b formed continuously on one side of the plate member 7a. As described above, since the base member 7 constituting the body member 2 is formed of a synthetic resin material such as PVC or PE, the base member 7 is flexible, and therefore can be easily rolled into a cylindrical shape. The base member 7 can be finally formed into a cylindrical body member 2 as shown in FIG. Further, the ribs 7b, 7b are provided on the side surfaces of the rib 7b so that when the base member 7 has a predetermined diameter when the base member 7 is rolled so that the ribs 7b, 7b are inside, the base member 7 is not further rounded. 7c and / or the corner 7d are formed in a trapezoidal or convex shape so as to contact and cushion each other. When the base member 7 is formed into the cylindrical body member 2, the ribs 7b, 7b adjacent to each other contact and buffer each other, so that the body member 2 can be maintained at a predetermined diameter size to be taken.
4 (a) and 4 (b), the case where the end faces of the ribs 7b, 7b are trapezoidal is described as an example. However, when the base member 7 is formed into a cylindrical shape, If the dimensions (width and / or height) of the ribs 7b, 7b are set so that the outer shape of the cylindrical body does not become smaller than a predetermined size, the end face shapes of the ribs 7b, 7b are illustrated. Any shape other than the trapezoid may be used.

As shown in FIG. 1, the brim member 3 of the present embodiment is a disc-shaped wooden member, and its diameter, thickness, tree type, and the like have appropriate size and strength depending on the type of the long member to be wound. can do. A concave portion 30 (see FIG. 3) that fits into the end of the body member 2 is provided on the inner side of the flange member 3, that is, a surface that comes into contact with the body member 2, and the base member 7 that is rounded into a cylindrical shape. The (body member 2) can be easily and reliably fitted into the concave portion 30 of the collar member 3. Therefore, the inner diameter of the recess 30 is equivalent to the outer diameter of the body member 2. Therefore, the length of the base member 7 is D × π (where π is 3.14), where D is the diameter of the concave portion 30. If the inner diameter of the concave portion 30 of the collar member 3 is set to be substantially the same as the outer diameter of the body member 2 or set to a value obtained by adding the clearance to the outer diameter of the body member 2, the end face of the body member 2 Can be fitted into the recess 30 of the collar member 3 without any trouble.
In the winding drum 1 according to the present embodiment, the fitting structure between the end surface of the body member 2 formed into a cylindrical shape and the concave portion 30 formed in the collar member 3 forms a connection between the body member 2 and the collar member 3. Structure. Note that this connection structure is a concept including the bolt 4 and the nut 5 as described above. However, in the winding drum 1 according to the present embodiment, when the body member 2 and the brim member 3 can maintain the connected state without using the bolts 4 and the nuts 5, the bolts 4 and the nuts 5 are used as the concept of the connection structure. It may not be included.
A shaft hole 6 is provided at the center of the collar members 3, 3 for use in mounting the cable or electric wire on a winder or the like.
When the winding drum 1 of the present embodiment is used for winding a long material other than a cable or an electric wire and the shaft hole 6 is unnecessary, the shaft hole 6 may not be provided.

  Bolts 4 are inserted from one side toward the other side into a pair of flange members 3, 3 disposed at both ends of the body member 2 in which the base member 7 is rounded into a cylindrical shape. The winding drum 1 is formed by attaching.

[How to assemble the take-up drum]
Next, the assembly of the winding drum 1 and a method of using the same will be described. First, a pair of brim members 3, 3 and one base member 7 are carried into a predetermined work place. Then, the base member 7 is rolled so that the ribs 7b, 7b are on the inside, and both ends of the base member 7 are finally brought into contact with each other to form the cylindrical body member 2. At this time, the ribs 7b, 7b buffer each other to maintain a predetermined diameter (see FIG. 5A).

  Next, a flange member 3 on one side is attached to one end of the body member 2 formed in a cylindrical shape. The specific procedure is as follows. First, after inserting the bolts 4 and 4 into the four bolt holes of the brim member 3, respectively, the heads of the bolts 4 and 4 are directed vertically downward, and one of the recesses 30 is directed vertically upward. Thus, the direction of the collar member 3 is made horizontal. At this time, the four bolts 4, 4 are in a state of extending in the vertical direction. Next, the end of the body member 2 is positioned on the concave portion 30 while the cylindrical body member 2 is kept in the vertical position. In this state, the torso member 2 is lowered to fit the end of the torso member 2 into the recess 30. Then, the other brim member (= the other pair of brim members) 3 is positioned above the body member 2, and the bolts 4, 4 extending through the inside of the body member 2 are each replaced by four bolts. After the insertion of the bolts 4 and 4 is completed, the other collar member 3 is further lowered to fit the concave portion 30 of the other collar member 3 into the opposite end of the body member 2. Then, nuts 5 and 5 are screwed into the screw portions at the other ends of the bolts 4 and 4 protruding from the other brim member 3, respectively, thereby fixing the body member 2 and the brim members 3 and 3. Thus, the assembly of the winding drum 1 is completed. Thereafter, a cable or the like can be wound around the winding drum 1.

  Next, the disassembling operation of the winding drum 1 will be described. First, the winding drum 1 is placed vertically so that the nuts 5 and 5 are vertically upward. Then, the nuts 5, 5 are removed from the bolts 4, 4. Next, the upper collar member 3 is removed from the trunk member 2, and the trunk member 2 is further removed from the lower collar member 3. Finally, the disassembly of the winding drum 1 is completed by pulling out the bolts 4 and 4 from the lower brim member 3. When the disassembly is completed, the body member 2 is developed into a flat plate shape to form the base member 7, so that storage and transportation can be easily performed without taking up space compared to the case of the winding drum 1. .

[Effects of Embodiment]
As described above, according to the winding drum 1 according to the present embodiment, the flexible and expandable and bendable synthetic resin base member 7 having the plate-like member 7a and the ribs 7b and 7b is rolled and the trunk member 2 is rolled. The pair of brim members 3 are attached to both ends of the body member 2 with nuts or the like, so that the assembling / disassembling is easy, a space is not required for storage and transportation, and the winding drum has a small number of parts. There is an effect that can be provided. In addition, since the amount of wood used can be reduced, there is an effect of being environmentally friendly.
Further, in the winding drum 1 according to the present embodiment, since the base member 7 has the plate-like member 7a and the ribs 7b, 7b integrated with each other, the skill of the worker when performing the assembling operation of the winding drum 1 is improved. Irrespective of this, the outer diameter of the body member 2 formed by molding the base member 7 into a cylindrical shape can be made substantially the same. This means that the assembling work of the winding drum 1 of the present embodiment does not require any advanced technique or skilled technique.
Therefore, according to the trunk member 2 of the present embodiment, it is possible to easily manufacture a large number of winding drums 1 having substantially the same outer diameter.
Further, when the winding object 1 such as an electric wire is wound around the winding drum 1 of the present embodiment, the load (deformation or deformation) acting on the winding object wound around the body member 2 is increased. This means that the bending can be made substantially the same for each winding drum 1.
As a result, according to the winding drum 1 of the present embodiment, the winding drum with little variation as a product can be efficiently mass-produced.

  In addition, in the winding drum 1 of the present embodiment, in particular, when the pair of brim members 3 and 3 are made of wood, there is an effect that even if it rains, it is hard to slip and the safety is high.

[Other Embodiments of Winding Drum]
Hereinafter, other embodiments of the winding drum will be described below. Here, differences from the above-described embodiment will be mainly described, and description of common points will be omitted. The difference of the other embodiments from the above-described embodiment lies in the configuration of the body member 2. 6 is a perspective view showing an initial shape of the trunk member of the present embodiment, FIG. 7 is a perspective view of a connecting portion of the trunk member, FIG. 8 is a perspective view of a core member mounted inside the trunk member, FIG. 9 is a perspective view of the trunk member when the core member is mounted. FIG. 10 is a view of the base member in the unfolded state as viewed from the end face in the longitudinal direction. In addition, FIG. 12 is a partial view in a cross section perpendicular to the central axis of a base member (body member) formed into a cylindrical shape. In FIGS. 6 to 10 and 12, elements having the same functions as the elements in FIGS. 1 to 5 are denoted by the same reference numerals. As shown in FIGS. 6 to 10, a body member 2 of another embodiment includes a body member for holding the cylindrical shape in addition to a flat base member 7 formed to be deformable into a cylindrical shape. 2 is provided with a substantially ring-shaped central core member 8 disposed (mounted) inside.

As shown in FIG. 6, a base member 7 of another embodiment has a thin rectangular plate member 7a having flexibility as shown in FIG. a plurality of ribs 7b formed, and a 7b, plate-shaped member 7a at both ends (first edge S ₁₎ to form a pair of connecting portions 7e, and a 7f. In the base member 7 of such another embodiment, the cylindrical body member 2 is formed as shown in FIG. 9 by arranging a plurality of ribs 7b, 7b inside and rolling the base member 7 into a cylindrical shape. can do. Further, by connecting the pair of connecting portions 7e and 7f, it is easy to maintain the shape of the body member 2 in a cylindrical shape. Further, the plurality of ribs 7b, 7b in other embodiments have a long convex shape in the central axis direction (arrow direction) of the trunk member 2 as shown in FIG. The core member 8 functions as a guide rail when the core member 8 is attached to the center of the body member 2 in the direction of the central axis from the direction of the arrow in FIG. The details of the mounting method of the core member 8 will be described later.)
In addition, in the vicinity of the center of the inner wall of the body member 2, positioning is performed in the depth direction (the direction of the arrow, more specifically, the center axis direction of the cylindrical body member 2) of the core member 8 at the time of mounting. Is provided (FIGS. 6 and 9). In the vicinity of the center of the inner wall of the body member 2, there is provided a gap 7g for rotating and fixing the core member 8 after the positioning (FIGS. 6 and 9). The gap 7g is a region where the rib 7b is not formed, and the size of the gap 7g in the central axis direction (the direction of the arrow) of the cylindrical body member 2 is equal to (substantially the same as or the same as the thickness of the core member 8). , A value obtained by adding a clearance to the thickness of the core member 8).

  One connecting portion 7e of the pair of connecting portions 7e and 7f in the base member 7 of another embodiment has a plurality of holes 7j and a plurality of hooks 7i alternately arranged as shown in FIG. The other connecting portion 7f has a plurality of hooks 7m and a plurality of holes 7n alternately arranged as shown in FIG. These connecting portions 7e and 7f are connected to each other when the base member 7 is rolled into a cylindrical shape with the rib 7b inside, and in the connected state, the hole 7j of one connecting portion 7e and the hook portion of the other connecting portion 7f. 7m, and the hook 7i of one connecting portion 7e is hooked into the hole 7n of the other connecting portion 7f. By this hooking, the cylindrical shape of the body member 2 is easily maintained. Further, since the connecting portions 7e and 7f are formed integrally with the base member 7 and have flexibility, there is also an advantage that the connecting portion does not require any trouble and is hard to be disconnected.

Note that the connection portions 7e and 7f of other embodiments need not be limited to the form shown in FIG. 7, and a connection structure other than that shown in FIG. 7 can be adopted.
More specifically, for example, the connection structure between the first edges S ₁ (the edge on the side where the collar member 3 is not disposed) of the base member 7 is different from the base member 7 (the plate-shaped member 7a and the rib 7b). A plate-like member 7a is provided by providing a separate ring body or a fixing member formed of a band body or the like capable of forming a ring shape, and providing the fixing member around the peripheral side surface of the base member 7 rolled into a cylindrical shape. You may comprise so that it may hold | maintain in a cylindrical shape (not shown).
Alternatively, the coupling structure of the first edge S ₁ between the base member 7, superimposing the first edge S ₁ between the side of the plate-shaped member 7a that is not in contact with the flange member 3, the overlapping portion, the surface It may be detachably connected using a fastener. In this case, when the overlapping first edge S ₁ between the base member 7, it is preferably configured such that the step does not occur on the outer surface side of the cylindrical body.
In any case, the connection structure between the _first edges S1 of the base member 7 is a structure for holding the base member 7 in a cylindrical shape, and the plate-like member 7a may be formed in a flat plate shape as necessary. Any structure may be adopted as long as it is configured so that it can be deployed in a computer.

  As shown in FIG. 8, the core member 8 of another embodiment is basically formed of a substantially ring-shaped base member 8a. The outer diameter size of the base member 8a corresponds to the inner diameter size of the cylindrical body member 2, and a plurality of notches 8b, 8b are formed on the outer peripheral edge of the base member 8a. In the flat plate portion of the base member 8a, four through holes 8d, 8d for allowing the above-mentioned four bolts 4 (see FIG. 3) to penetrate are formed. The plurality of notches 8b, 8b of the core member 8 can be respectively fitted to the plurality of ribs 7b provided inside the body member 2 as shown in FIG. And functions as a guide groove when the core member 8 is attached to the main body. As shown in FIG. 8, one notch 8 c is provided at an appropriate position on the outer peripheral edge of the core member 8, and the notch 8 c attaches the core member 8 to the trunk member 2. At this time, they face the connecting portions 7e and 7f (FIG. 7) of the body member 2.

In a case where a structure different from the connecting portions 7e and 7f shown in FIG. 7 is adopted as a connecting structure between the _{first end} edges S1 of the base member 7 of another embodiment, the connecting structure corresponds to the connecting structure. It is necessary to provide the notch 8c. Alternatively, depending on the form of the connection structure between the _{first end} edges S1 of the base member 7, a case where the notch 8c is not necessary is also assumed.
A convex stopper 8h for positioning the center member 8 in the circumferential direction when the center member 8 is mounted on the body member 2 is formed near the outer periphery of the flat plate portion of the center member 8. . The size of the circular hole 8i formed in the center of the core member 8 is appropriately set in consideration of the balance between the weight reduction effect of the core member 8 and the reinforcing effect of the trunk member 2.
Although FIG. 8 illustrates an example in which the base member 8a of the core member 8 has the circular hole 8i, the case where the material forming the base member 8a is relatively light or the base member 8a When it is not necessary to reduce the weight of the base member 8a, the base member 8a may not have the circular hole 8i.
The material of the core member 8 may be the same synthetic resin as the material of the base member 7. The manufacturing of the core member 8 is performed, for example, by using a covering material (PVC: polyvinyl chloride mixture, PE : Polyethylene, FEP: Teflon (registered trademark)).

[How to attach the core member]
Next, a method of attaching the core member 8 to the trunk member 2 will be described. The timing at which the core member 8 is attached is a timing after the trunk member 2 has been rolled into a cylindrical shape and the coupling portions 7e and 7f have been coupled, for example, before the second collar member 3 is attached to the trunk member 2. And the timing before the first collar member 3 is attached to the body member 2.

Specifically, first, as shown in FIG. 9, with the center line of the core member 8 and the center line of the trunk member 2 aligned with each other, the core member 8 is turned inward from the outside of the trunk member 2 ( (In the direction of the arrow). At this time, the plurality of ribs 7b, 7b protruding toward the inner wall of the body member 2 and the plurality of cutouts 8b, 8b provided on the outer periphery of the core member 8 are fitted to each other. It is guided toward the back of the body member 2 while maintaining that posture. Thereafter, when the core member 8 is inserted to the center of the body member 2, the core member 8 comes into contact with the stopper 7h, and further insertion cannot be performed. When the core member 8 is rotated around the center line in this state, the engagement between the plurality of ribs 7b and the plurality of notches 8b is released, and the core member 8 is moved toward the near side (in the direction opposite to the arrow). You will not be able to return to. When the rotation amount of the core member 8 reaches a predetermined angle, any of the ribs 7b on the inner wall of the body member 2 comes into contact with the stopper 8h of the core member 8, so that further rotation cannot be performed. As a result, the core member 8 is fixed to the trunk member 2, and the mounting is completed. Therefore, in the present embodiment, the gaps 7 g and 7 g of the body member 2, the stoppers 7 h and 7 h, and the stopper 8 h of the center member 8 serve to prevent the center member 8 attached to the body member 2 from shifting. . It should be noted that the presence of the core member 8 does not hinder the fastening of the four bolts 4, 4 described above, or the presence of the four bolts 4, 4 does not hinder the attachment of the core member 8. As described above, it is desirable that the circumferential lengths (FIG. 8) of the four through holes 8d, 8d be sufficiently large.
In addition, the fixing structure of the core member 8 to the body member 2 of another embodiment need not be limited to the above-described embodiment, but may be any other structure as long as the same function can be exerted. A structure may be adopted.

Further, as shown in FIG. 10, the base member 7 of another embodiment is formed along the first edge S ₁ (short side of the plate-like member 7a in FIG. 6) on the side where the collar member 3 is not arranged. It may include a strip-shaped warped portion 7p to be formed and a flat portion forming a region other than the warped portion 7p. Further, “the first edge S ₁ of the plate-shaped member 7a on the side where the collar member 3 is not arranged” can also be expressed as “a side of the plate-shaped member 7a that does not contact the collar member 3”.
Even when all of the base member 7 is made of a synthetic resin having flexibility, when the base member 7 is formed into a cylindrical shape, the region near the _first edge S ₁ is always maintained in a curved state. It is difficult to keep.
For this reason, when the base member 7 does not have the warp portion 7p, the end surface shape becomes a drop shape when the base member 7 is formed into a cylindrical shape each time the thickness of the plate-shaped member 7a increases. There was a problem that it was easy.
In view of such circumstances, the base member 7 of the other embodiments, the first edge S ₁ side of the plate-shaped member 7a (short sides of the plate-shaped member 7a in FIG. 6), is molded in advance in an arc With the provision of the warped portion 7p, the end surface shape of the cylindrical body when the base member 7 is formed into a cylindrical shape can be approximated to a substantially circular shape.
It is preferable that the thickness of the warped portion 7p is set to be larger than the thickness of the plate-shaped member 7a in the flat portion (the region other than the warped portion 7p). When the thickness of the warped portion 7p is larger than the thickness of the flat portion, there is an advantage that the shape retention of the warped portion 7p can be improved.
Incidentally, the warp portion 7p, in the plate-shaped member 7a in the base member 7, may be provided only on one of the first pair of edges S _1, it may be provided to both. Especially in the former case, by disposing the first edge S ₁ who has a warped portion 7p overlapping the first edge S ₁ of the other, not warped towards the first edge of can be curved deflect the S ₁ (not shown). At that time, when overlaid the first edge S ₁ and not warped warping unit 7p, such a step does not occur on the outer surface of the body member 2 formed into a cylindrical shape, first in one It is preferable to bring the edge S1 of _one to the center of the cylindrical body (not shown).

[Effects of Other Embodiments]
As described above, the body member 2 of the other embodiment has a flat plate-shaped body member 2 (base member 7) formed so as to be deformable into a cylindrical shape, and the body member 2 (base member 7) is deformed into a cylindrical shape. And a substantially ring-shaped core member 8 that is disposed in the body member 2 when held and retains a cylindrical shape. Therefore, the winding drum according to the other embodiment is different from the winding drum according to the above-described embodiment. As with the drum 1, the assembling and disassembling is easy, and there is an effect that a space is not required for storage and transportation, and the number of parts is small. Further, since the material of the body member 2 is made of synthetic resin, the amount of wood used can be reduced, and there is an effect that it is environmentally friendly. Further, similarly to the winding drum 1 of the above-described embodiment, when the pair of brim members 3 and 3 are made of wood, there is an effect that even if it rains, it is hard to slip and the safety is high. In particular, since the body member 2 of another embodiment maintains the strength not by the base member 7 alone but by the combination of the base member 7 and the core member 8, the number of the ribs 7b is reduced as compared with the above-described embodiment. Alternatively, the height of the rib 7b can be reduced, and the thickness of the rib 7 can be reduced. Further, in other embodiments, the thickness of the core member 8 itself does not need to be particularly large. Therefore, when the body member 2 of another embodiment is developed in a flat plate shape, the thickness of each component can be suppressed, which is advantageous for storage and transportation.

Furthermore, in the case where the base member 7 of the other embodiment has the warp portion 7p in particular, when the base member 7 is formed into a cylindrical shape to form the body member 2, the end surface shape becomes a drop shape. It can be suitably prevented.
In this case, when an object to be wound such as an electric wire is wound around the trunk member 2 of another embodiment, an unintended load (deformation or bending) is prevented from acting locally on the object to be wound. can do.
Thereby, when winding an object such as an electric wire around the winding drum of another embodiment and storing it, it is possible to prevent the winding object from being damaged or deteriorated unintentionally. Therefore, according to the trunk member 2 of another embodiment, the performance and quality of the trunk member 2 can be improved as compared with the case where the base member 7 does not include the warp portion 7p.
Therefore, according to the winding drum 1 of another embodiment, there is also an effect that the winding drum having higher quality than the winding drum 1 of the above-described embodiment can be easily mass-produced.

[Selective components of other embodiments]
When the base member 7 of another embodiment includes the connecting portions 7e and 7f as shown in FIGS. 6, 7, and 9, the outer diameter (diameter) of the body member 2 that has been rounded into a cylindrical shape is determined with high accuracy. This has the advantage that the desired value can be approached. Therefore, according to the base member 7 of another embodiment, the body member 2 (base member 7) with high dimensional accuracy can be easily mass-produced.
On the other hand, when the body member 2 formed by rolling the base member 7 of the other embodiment is used by being connected to, for example, a collar member 3 of an existing wooden winding drum (see FIG. 1, a recycled product). However, there is a concern that the following problems may occur.
When the existing wooden winding drum 3 is used as the brim member 3 by recycling, the concave portion 30 (see FIG. 3) formed in the brim member 3 or the concave portion 31 shown in the subsequent stage (see FIG. ) Are not uniform and have subtle variations.
On the other hand, when the base member 7 of the other embodiment is made of a synthetic resin, it is a molded product, so that its dimensional accuracy is much higher than that of the recycled member 3.
For this reason, when trying to connect the base member 7 of the other embodiment to the wooden brim member 3 of the recycled product by rolling, the concave portion 30 of the brim member 3 that is a recycled product is high due to the high dimensional accuracy of the base material 7. Alternatively, there is a concern that a problem may occur that the trunk member 2 formed by rolling the base member 7 into a cylindrical shape cannot be connected to (fitted into) the concave portion 31.

In order to cope with such inconvenience, the base member 7 of another embodiment has a hole 7n for accommodating the hooks 7m and 7i when the connecting portions 7e and 7f are overlapped and connected as shown in FIG. , 7j may be provided with a clearance A (a gap in a range indicated by a symbol A in FIG. 12) in a circumferential direction of the plate-shaped member 7a (the body member 2) (optional component).
In this case, the hooks 7m and 7i can be slightly slid in the clockwise direction (the direction indicated by the symbol X in FIG. 12) in the holes 7n and 7j. Then, by this operation, the outer diameter (diameter) of the body member 2 formed by rolling the base member 7 into a cylindrical shape can be slightly reduced.
When each of the holes 7n and 7j has the clearance A, the hooks 7m and 7i are slightly moved in the counterclockwise direction (the direction indicated by the symbol Y in FIG. 12) in the holes 7n and 7j. Can be slid. By this operation, the outer diameter (diameter) of the body member 2 formed by rolling the base member 7 into a cylindrical shape can be slightly increased.
Therefore, the holes 7n and 7j in the connecting portions 7e and 7f of the other embodiments have the clearance A in the circumferential direction of the body member 2, so that the outer diameter (diameter) of the body member 2 of the other embodiments. Can be adjusted.

As described above, since the outer diameter (diameter) of the body member 2 obtained by rolling the base member 7 of the other embodiment is adjustable, the outer diameter (the outer diameter of the concave portion 30 or the concave portion 31 of the collar member 3 to be connected) is adjusted. Even when the diameter is unintended and non-uniform, the outer diameter (diameter) of the trunk member 2 can be changed as desired to connect the trunk member 2 and the collar member 3.
As a result, the winding drum 1 can be manufactured using the wooden collar member 3 which is a recycled product and the base member 7 (body member 2) which is a molded product of a synthetic resin.
In this case, since the wooden brim member 3 in the existing winding drum can be effectively used, there is an advantage that the manufacturing cost of the winding drum 1 of another embodiment can be reduced.
Also, compared to the case where the body member of the winding drum 1 is manufactured using wood, a molded product (base member 7) having high dimensional accuracy can be used as the body member 2, so that it can be manufactured and assembled. There is also a merit that labor can be greatly reduced.

In the connection portions 7e and 7f shown in FIG. 7, the region provided with the hook portions 7m and 7i is a region corresponding to "one of the connection portions". In the connection portions 7e and 7f, the holes 7n are provided. , 7j are areas corresponding to “the other side of the connection portion”.
Thus, the plate-shaped member 7a (group member 7) shown in FIG. 7, each first edge S _1, when provided with a plurality alternating with "other connecting portion" and the "one of the connecting portion" Can be expressed.
Further, in the base member 7 of another embodiment, the size of the clearance A formed in the holes 7n, 7j of the connecting portions 7e, 7f is large enough not to hinder the attachment / detachment of the core member 8 described above. That's it.

[Another Embodiment of Winding Drum]
Hereinafter, another embodiment of the winding drum will be described below. Here, differences from the above-described embodiment and other embodiments will be mainly described, and description of common points will be omitted. The difference from the winding drum of the above-described embodiment and the other embodiments lies in the connection structure of the body member 2 and the collar member 3. FIG. 11A is a partial cross-sectional view of a connection structure between a trunk member and a brim member according to another embodiment, and FIG. 11B illustrates a state before the trunk member and the brim member are connected according to another embodiment. FIG. 11C is a partially enlarged view of a connection structure between a trunk member and a collar member according to another embodiment. Note that, in FIG. 11, the components having the same functions as those in FIGS. 1 to 10 are denoted by the same reference numerals. As shown in FIG. 11A, the connecting structure 9 of the trunk member 2 and the brim member 3 according to another embodiment includes a base member 7 in a groove-shaped recess 31 formed on a flat surface of the brim member 3. The insertion portion 10 formed on the side of the _second end edge S2 of the plate-like member 7a is pressed.
Although not particularly shown in FIG. 11, the body member 2 and the brim member 3 in another embodiment may be integrated with the bolt 4 and the nut 5. When disassembling the winding drum 1 in such another embodiment, it is necessary to remove the bolt 4 and the nut 5.

In addition, the insertion portion 10 of the connection structure 9 in such another embodiment is the same as the plate-like member 7a (or the base member 7) shown in FIGS. It is formed on the second edge _{S 2} side. However, none of the plate-like members 7a (or the base member 7) shown in FIGS. The “second edge S ₂ of the plate-shaped member 7a (or the base member 7) on the side where the flange member 3 is arranged” is “contacted with the collar member 3 in the plate-shaped member 7a (or the base member 7)”. Edge ".
Further, the thickness direction cross section of the insertion portion 10, as shown in FIG. 11 (b), the thickness of the plate-shaped member 7a toward the second edge S ₂ is formed into a thinner tapered (FIG. 11 (b), refer to the tapered portion 10a).
In addition, the concave portion 31 formed on the flat surface of the collar member 3 has an inner surface 31a having an inclination angle substantially equal to the inclination angle of the tapered portion 10a in the insertion portion 10 described above.
In the connection structure 9 according to another embodiment, as shown in FIGS. 11A and 11C, when the insertion portion 10 of the trunk member 2 is pushed into the recess 31 of the collar member 3, the insertion portion 10 the second edge S ₂ forming a tip, so as not to contact with the bottom surface 31b of the recess 31, the length of the depth and the insertion portion 10 of the recess 31 is set.

In the connection structure 9 in another embodiment as described above, even when the body member 2 and the collar portion 3 expand or contract due to a change in the outside air temperature, the tapered portion 10a of the insertion portion 10 and the concave portion 31 The inner side surface 31a can always be kept in contact.
More specifically, for example, when the flange member 3 expands and the width of the concave portion 31 increases, the insertion portion 10 accommodated in the concave portion 31 slides slightly toward the bottom surface 31 b of the concave portion 31. The state of contact between the tapered portion 10a of the insertion portion 10 and the inner surface 31a of the recess 31 is maintained.
On the other hand, when the flange member 3 contracts and the width of the concave portion 31 is reduced, the insertion portion 10 accommodated in the concave portion 31 is slightly pushed out of the concave portion 31, and the tapered portion 10 a of the insertion portion 10 and the concave portion are formed. The contact state between the inner surface 31 and the inner surface 31a is maintained.
When the trunk member 2 expands, the contact state between the tapered portion 10a of the insertion portion 10 and the inner surface 31a of the concave portion 31 is maintained according to the same principle as the latter case. In addition, when the trunk member 2 contracts, the contact state between the tapered portion 10a of the insertion portion 10 and the inner surface 31a of the concave portion 31 is maintained according to the same principle as the former case.
As described above, in the connection structure 9 of the winding drum 1 according to another embodiment, even when the body member 2 and the brim member 3 expand or contract due to a change in the outside air temperature, the connection between the insertion portion 10 and the concave portion 31 is possible. A gap does not occur, or the insertion portion 10 is pushed out of the recess 31 and both are separated from each other.

[Effects of Another Embodiment]
As described above, in the connection structure 9 in another embodiment, the state of contact between the tapered portion 10a of the insertion portion 10 and the inner side surface 31a of the concave portion 31 is always maintained. This sometimes means that no connection failure such as wobble or rattling occurs in the connection structure 9 between the trunk member 2 and the collar member 3.
Therefore, according to the winding drum 1 in another embodiment as shown in FIG. 11, when used outdoors in the open air, the connection structure is accompanied by the deformation accompanying the expansion and contraction of the trunk member 2 and the brim member 3. 9 can be suitably prevented from deteriorating the integrity of the trunk member 2 and the collar member 3.
As a result, according to the winding drum 1 in another embodiment, it is possible to provide a high-quality rotary drum in which the shape retention of a product is unlikely to be reduced even when used outdoors in the open field.

Further, in the connection structure 9 in another embodiment shown in FIG. 11, the case where the insertion portion 10 is formed only in the plate-like member 7a is described as an example, but this insertion portion 10 is a portion consisting of members 7a alone, may be formed on the both the portion where the plate-shaped member 7a and the ribs 7b are laminated (= second edge S ₂ of the base member _7). In this case, it is necessary to appropriately increase the width of the concave portion 31 so that the overlapping portion of the plate member 7a and the rib 7b can be accommodated.
Further, in this other embodiment, the case where the tapered portion 10a is provided on both the front surface and the back surface of the plate member 7a (or the base member 7) is described as an example. Alternatively, the tapered portion 10a may be provided on only one of the front surface and the back surface of the base member 7). In this case, it is necessary to change the shape of the inner surface 31a of the concave portion 31 formed in the collar member 3 as well.
In any of the above cases, the same effect as that provided by the connection structure 9 shown in FIG. 11 can be obtained.
In the case of forming only the insertion portion 10 to the plate-like member 7a in group member 7, the rib 7b is because it is not pressed into the recess 31, rather than the end surface position of the rib 7b on the second edge S _2, body member 2 Must be arranged on the center side of the center axis of the camera.
Further, the base member 7, (the case of forming the second edge S ₂ into the insertion portion 10 of the = base member 7) When forming the insertion portion 10 into the overlapping portion of the plate-shaped member 7a and the rib 7b is There is an advantage that the shape retention when the body member 2 is connected to the flange member 3 can be further improved.

[Supplement]
The term “cylindrical” described above includes not only a true cylinder, but also a polygonal cylinder (a cylinder having a polygonal cross section) such as a regular octagonal cylinder and a regular hexagonal cylinder. . This is because, depending on the flexibility of the base member 7 and the number of the ribs 7b, the trunk member 2 may be a polygonal cylinder instead of a true cylinder. Further, the shape of the body member 2 is positively adjusted within a range where the state of the long object can be maintained in a healthy manner, though it varies depending on the type of the long object to be wound (cable, electric wire, wire). A polygonal cylinder such as a square cylinder, a regular seventeen cylinder, a regular hexagonal cylinder, a regular pentagonal cylinder, or the like is also possible. Further, the cross-sectional shape is not limited to a true regular polygon, and some of the internal angles may be larger or smaller as long as the state of the long object can be maintained in a healthy state.

  As described above, the preferred embodiment of the present invention has been described in detail, but the present invention is not limited to such a specific embodiment, and within the scope of the present invention described in the claims, It goes without saying that various modifications and changes are possible.

  As described above, the present invention is a body member used for a winding drum that can be easily mass-produced without using wood, and has little variation in quality, and a winding drum using the same. It can be used in technical fields related to materials storage and transport equipment.

DESCRIPTION OF SYMBOLS 1 ... Winding drum 2 ... Trunk member 3 ... Collar member 30 ... Recess 31 ... Recess 31a ... Inner side surface 31b ... Bottom surface 4 ... Bolt 5 ... Nut 6 ... Shaft hole 7 ... Base member 7a ... Plate member 7b ... Rib 7c ... Side 7d: Corner 7e: Connection 7f: Connection 7g: Gap 7h: Stopper 7i: Hook 7j: Hole 7m: Hook 7n: Hole 7p: Warp 8: Core member 8a: Base member 8b ... Notch portion 8c Notch portion 8d Through hole 8h Stopper 8i Circular hole 9 Connection structure 10 Insertion portion 10a Tapered portion S ₁ First edge S ₂ Second edge

Claims (7)

In a winding drum of a long member formed by arranging a disk-shaped brim member on both left and right sides of a cylindrical body member,
The trunk member,
A flat plate-shaped member formed to be deformable into a cylindrical shape,
A winding drum, comprising: a core member that is disposed in the trunk member when the plate member is deformed into a cylindrical shape and maintains a cylindrical shape.   The plate-shaped member includes a warped portion formed in a band shape along at least one of the first edges on the side where the collar member is not arranged, and a flat portion forming an area other than the warped portion. The winding drum according to claim 1, wherein the winding drum is provided. In a winding drum of a long member formed by arranging a disk-shaped brim member on both left and right sides of a cylindrical body member,
The trunk member,
A flat plate-shaped member formed to be deformable into a cylindrical shape,
A plurality of ribs provided on the surface of the plate member, the plurality of ribs maintaining a cylindrical shape by buffering each other when the body member is deformed into a cylindrical shape. A winding drum.   The winding drum according to any one of claims 1 to 3, wherein the body member is formed of a flexible material.   The said plate-shaped member is provided in each 1st edge of the side in which the said brim member is not arrange | positioned, It is provided with the connection part which overlaps mutually and is detachably integrated. The winding drum according to claim 4. One of the connecting portions includes a hook portion protruding on a contact surface side with the other connecting portion,
The other of the connecting portions is formed so as to penetrate the thickness direction thereof, and includes a hole portion for inserting the hook portion into the hollow portion,
The winding drum according to claim 5, wherein the hole has a clearance for sliding the hook in a direction to increase or decrease the outer diameter of the cylindrical body member. The winding drum according to claim 6, wherein the collar member is made of wood, and the body member is made of a synthetic resin.

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