Bobbin holding device

Abstract

To provide a bobbin holding device capable of being simply and easily fixed and arranged to a bucket part and reducing the wetting of a bobbin.SOLUTION: The bobbin holder includes a holding part 3 for rotatably holding a bobbin, a mounting part 2 provided on the holding part 3, and a cover part 4 for covering the bobbin so as to cover at least an upper part and a side part of the bobbin rotatably held by the holding part 3. The bobbin holding device 1 can be fixed to the bucket portion by hooking the attachment portion 2 on a side wall of the bucket portion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bobbin holding device. [Background technology]

[0002] There is known a bobbin around which a binding string is wound for binding messenger wires, power cables, etc. (See, for example, Patent Document 1). Such a bobbin has a configuration in which flanges are provided on both ends of a winding body, and an axial hole is provided in the center of the flanges, and the binding string is wound around the winding body. A bobbin configured in this manner is used by a worker or the like who rides in the bucket of an aerial work vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-321164 Summary of the Invention [Problem to be solved by the invention]

[0004] The bobbins described above must be secured to the bucket using some means to facilitate the work of workers unwinding the tying cord from the bobbin and tying up messenger wires, power cables, and the like. However, this securing and arranging process is extremely cumbersome. Furthermore, if the bobbin becomes wet with water, such as rainwater, the bobbin may deform or the tying cord may harden, making it difficult to unwind the tying cord, resulting in a decrease in workability.

[0005] In view of the above, an object of the present invention is to provide a bobbin holding device that can be simply and easily fixed to a bucket portion and that can reduce the bobbin getting wet with water. [Means for solving the problem]

[0006] The above object of the present invention can be achieved by the following means: Note that the parentheses indicate reference symbols of embodiments to be described later, but the present invention is not limited to these.

[0007] According to the invention of the bobbin holding device of claim 1, there is provided a bobbin holding device (1) for holding a bobbin (B) around which a string (binding string H) for tying a power cable or the like is wound, a holding portion (3) that rotatably holds the bobbin (B); an attachment portion (2) provided on the holding portion (3); a cover portion (4) for covering the bobbin (B) so as to cover at least the upper and side portions of the bobbin (B) rotatably held by the holding portion (3), The bobbin holding device (1) can be fixedly positioned on the bucket portion (BA) by hooking the mounting portion (2) onto a predetermined location (side wall BAa) of the bucket portion (BA).

[0008] According to the invention of the bobbin holding device of claim 2, in the bobbin holding device (1) described in claim 1, the cover portion (4) is characterized in that a hole (40a2) is provided so that the string (binding string H) can be pulled out from outside the cover portion (4).

[0009] According to the invention of the bobbin holding device of claim 3, in the bobbin holding device (1) described in claim 1 or 2, the mounting portion (2) is provided with a vibration prevention portion (21) that prevents the mounting portion (2) from vibrating when the bobbin holding device (1) is fixedly positioned on the bucket portion (BA).

[0010] According to the invention of the bobbin holding device of claim 4, in the bobbin holding device (1) of claim 1 or 2, the holding part (3) includes a pair of holding fittings (left holding fitting 30, right holding fitting 31), One end (left support portion 30b, right support portion 31b) of the pair of retaining fittings (left retaining fitting 30, right retaining fitting 31) is arranged at a first position (see, for example, FIG. 4) with a first interval (interval W2) between them, and when rotatably holding the bobbin (B), they are spread apart to a second position with a second interval wider than the first interval (interval W2), The other ends (left fixing portion 30c, right fixing portion 31c) of the pair of retaining fittings (left retaining fitting 30, right retaining fitting 31) are characterized in that the other ends (left fixing portion 30c, right fixing portion 31c) intersect with each other so that one end (left support portion 30b, right support portion 31b) of the pair of retaining fittings does not widen beyond the second distance.

[0011] According to the invention of the bobbin holding device of claim 5, in the bobbin holding device (1) of claim 4, when the bobbin (B) is rotatably held, one end (left support portion 30b, right support portion 31b) of the pair of holding fittings (left holding fitting 30, right holding fitting 31) is inserted into axial holes (Bba) provided on both side surfaces of the bobbin (B), so that the bobbin (B) can be rotatably held, First rotating bodies (left first rotating body 32, right first rotating body 34) having a diameter smaller than the diameter of the shaft hole (Bba) are rotatably provided on one end portions (left support portion 30b, right support portion 31b) of the pair of retaining fittings (left retaining fitting 30, right retaining fitting 31), The first rotating bodies (left first rotating body 32, right first rotating body 34) are inserted into the axial hole (Bba) and are characterized in that they rotate in accordance with the rotation of the bobbin (B).

[0012] According to the invention of the bobbin holding device of claim 6, in the bobbin holding device (1) of claim 4, when the bobbin (B) is rotatably held, one end (left support portion 30b, right support portion 31b) of the pair of holding fittings (left holding fitting 30, right holding fitting 31) is inserted into axial holes (Bba) provided on both side surfaces of the bobbin (B), so that the bobbin (B) can be rotatably held, A second rotating body (left second rotating body 33, right second rotating body 35) having a diameter larger than the diameter of the shaft hole (Bba) is rotatably provided at one end (left support portion 30b, right support portion 31b) of the pair of retaining fittings (left retaining fitting 30, right retaining fitting 31), The second rotating bodies (left second rotating body 33, right second rotating body 35) are not inserted into the axial hole (Bba) and are characterized in that they rotate in accordance with the rotation of the bobbin (B). [Effects of the Invention]

[0013] Next, the effects of the present invention will be described with reference to the drawings. Note that the reference symbols in parentheses are those of the embodiments described below, but the present invention is not limited to these.

[0014] According to the invention of claim 1, the bobbin (B) rotatably held by the holding part (3) is covered with the cover part (4) so ​​as to cover at least the upper and side parts of the bobbin (B). Then, by hooking the attachment part (2) to a predetermined part (side wall BAa) of the bucket part (BA), the bobbin holding device (1) can be fixedly disposed on the bucket part (BA).

[0015] Therefore, according to the present invention, the bobbin holding device (1) can be fixedly disposed on the bucket portion (BA) simply and easily, and the bobbin (B) can be prevented from getting wet with water.

[0016] According to the invention of claim 2, the cover part (4) is provided with a hole (40a2) so that the string (binding string H) can be pulled out from the outside of the cover part (4), thereby minimizing the situation where the string (binding string H) gets wet.

[0017] According to the invention of claim 3, the mounting portion (2) is provided with a vibration prevention portion (21) that prevents the mounting portion (2) from vibrating when the bobbin holding device (1) is fixed to the bucket portion (BA). This reduces the possibility of the mounting portion (2) coming off the bucket portion (BA).

[0018] According to the invention of claim 4, the other ends (left fixing portion 30c, right fixing portion 31c) of the pair of retaining fittings (left retaining fitting 30, right retaining fitting 31) intersect with each other so that they do not widen beyond the second distance. This reduces the possibility that one end (left supporting portion 30b, right supporting portion 31b) of the pair of retaining fittings (left retaining fitting 30, right retaining fitting 31) will not return to the first position from the second position with the second distance therebetween.

[0019] According to the invention of claim 5, the first rotors (left first rotor 32, right first rotor 34) are inserted into the shaft holes (Bba) and rotate with the rotation of the bobbin (B), thereby allowing the bobbin (B) to rotate smoothly.

[0020] According to the invention of claim 6, the second rotating bodies (left second rotating body 33, right second rotating body 35) are not inserted into the axial hole (Bba) and rotate with the rotation of the bobbin (B). This reduces the possibility that the bobbin (B) will not rotate smoothly. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a side view of a bobbin holding device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view of the bobbin holding device according to the embodiment. [Figure 3] FIG. 2 is a plan view of the bobbin holding device according to the embodiment. [Figure 4] FIG. 2 is a front perspective view showing only the holding portion according to the embodiment. [Figure 5] 1A is a perspective view showing a state in which a bobbin is rotatably held by a holding portion according to the embodiment, and FIG. 1B is an enlarged cross-sectional front view of the left side portion shown in FIG. 1A. [Figure 6]1A and 1B are perspective views showing the state in which the bobbin holding device according to the embodiment is fixedly arranged on the bucket portion, in which (a) shows the state in which the tying string is not pulled, and (b) shows the state in which the tying string is pulled. [Figure 7] 10 is a cross-sectional view showing a state in which the attachment portion of the bobbin holding device according to the embodiment is hooked onto a side wall of a bucket portion. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the bobbin holding device according to the present invention will be described in detail with reference to the drawings. In the following description, when directions such as up, down, left, and right are indicated, they refer to up, down, left, and right when viewed from the front of the drawing.

[0023] <Explanation of the bobbin holding device> The bobbin holding device according to this embodiment can be simply and easily fixed to the bucket portion and can reduce the risk of the bobbin getting wet. Specifically, as shown in Fig. 1, the bobbin holding device 1 is mainly composed of an attachment portion 2, a holding portion 3 (see Fig. 4), and a cover portion 4. Each component will be described in detail below.

[0024] <Mounting part description> As shown in FIG. 1, the attachment portion 2 includes an attachment portion main body 20. As shown in FIG. 1, the attachment portion main body 20 is hook-shaped in a side view with a width W1 between a distal end 20a side and a proximal end 20b side. When the distal end 20a side of the attachment portion main body 20 is pulled to the left as shown in FIG. 1, the distal end 20a side can be moved slightly to the left as shown in FIG. 1. This allows the width between the distal end 20a side and the proximal end 20b side to be wider than the width W1 shown in FIG. 1. Furthermore, when the attachment portion main body 20 is no longer pulled to the left as shown in FIG. 1, the distal end 20a side moves to the right as shown in FIG. 1. In other words, the distal end 20a side returns to its original position as shown in FIG. 1, and the width between the distal end 20a side and the proximal end 20b side returns to the width W1.

[0025] Thus, as shown in FIG. 2, a pair of mounting body 20 configured as described above are provided with a predetermined gap therebetween.

[0026] Meanwhile, as shown in Fig. 1, the tip end 20a of the mounting body 20, which is hook-shaped in side view and configured as described above, is integrally provided with an anti-vibration portion 21 that is substantially L-shaped in side view and protrudes toward the base end 20b (toward the right in Fig. 1). More specifically, as shown in Fig. 3, the anti-vibration portion 21 is formed in a mountain-like shape in plan view, and includes a linear first axis 21a extending upward in the figure and a linear second axis 21b extending downward in the figure. Furthermore, as shown in Fig. 3, a mountain-shaped protrusion 21c is integrally provided at an upper end 21a1 of the first axis 21a and a lower end 21b1 of the second axis 21b toward the base end 20b of the mounting body 20 (toward the left in the figure). 3, the lower end 21a2 of the first axis 21a is integrally attached to the tip end 20a of the attachment body 20 located on the lower side in the figure, and the upper end 21b2 of the second axis 21b is integrally attached to the tip end 20a of the attachment body 20 located on the upper side in the figure. Therefore, as shown in Fig. 1, the anti-sway portion 21 that is substantially L-shaped in side view is provided integrally with the tip end 20a of the attachment body 20 and protrudes toward the base end 20b side (toward the right in Fig. 1).

[0027] <Explanation of holding part> As shown in FIG. 4, the holding unit 3 includes a left holding bracket 30 located on the left side of the figure and a right holding bracket 31 located on the right side of the figure. As shown in FIG. 4, both the left holding bracket 30 and the right holding bracket 31 are formed as wire bodies such as steel wires. More specifically, as shown in FIG. 4, the left holding bracket 30 includes a left holding bracket main body 30a having an inverted L shape. As shown in FIG. 4, a substantially linear left support portion 30b is integrally formed at the lower end 30a1 of the left holding bracket main body 30a and protrudes toward the right holding bracket 31 (toward the right in the figure). Furthermore, as shown in FIG. 1, a left fixing portion 30c is integrally formed at the upper end 30a2 of the left holding bracket main body 30a, extending upward and linearly in a side view. The left fixing portion 30c extends upward as shown in FIG. 1, and is bent downward as shown in FIG. 3, forming a linear shape in a plan view. As shown in FIG. 3, the lower end 30c1 of the left fixing portion 30c is attached integrally to the base end 20b of the attachment portion main body 20 located on the lower side in the figure.

[0028] On the other hand, as shown in FIG. 4, the right holding fitting 31 includes a right holding fitting main body 31a having an inverted L-shape. As shown in FIG. 4, a substantially linear right support portion 31b is integrally provided at the lower end 31a1 of the right holding fitting main body 31a and protrudes toward the left holding fitting 30 (toward the left in the figure). Furthermore, as shown in FIG. 1, a right fixing portion 31c having an inverted L-shape in a side view is integrally provided at the upper end 31a2 of the right holding fitting main body 31a. As shown in FIG. 3, the right fixing portion 31c is L-shaped in a plan view so as to intersect (intersect) with the left fixing portion 30c. As shown in FIG. 3, an upper end 31c1 of the right fixing portion 31c is integrally attached to the base end 20b of the mounting portion main body 20 located on the upper side in the figure.

[0029] Thus, the left retaining bracket 30 and the right retaining bracket 31 configured as described above are arranged opposite each other at a fixed distance as shown in Figure 4, and the distance between the left support portion 30b and the right support portion 31b is distance W2.

[0030] The holding unit 3 configured as described above is capable of rotatably holding a bobbin B, as shown in FIG. 5(a). The bobbin B has a conventionally well-known structure. Briefly, as shown in FIG. 5(b), it has a winding body Ba, and as shown in FIG. 5(a), flanges Bb are provided at both ends of the hollow, cylindrical winding body Ba. As shown in FIG. 5(b), an axial hole Bba is provided at the center of the flange Bb, penetrating it in the left-right direction and communicating with the interior of the winding body Ba. As shown in FIG. 5(a), a binding string H for binding a messenger wire, a power cable, or the like is wound around the winding body Ba of the bobbin B configured in this manner.

[0031] Therefore, the bobbin B around which the binding string H is wound as described above is rotatably held by the holding part 3, as shown in Fig. 5(a). This point will be described in detail below.

[0032] First, to rotatably hold the bobbin B around which the tying string H is wound, an operator pulls the left holding bracket main body 30a of the left holding bracket 30 shown in FIG. 4 to the left in the figure, and also pulls the right holding bracket main body 31a of the right holding bracket 31 shown in FIG. 4 to the right in the figure. This allows the distance between the left support portion 30b and the right support portion 31b to be wider than the distance W2 shown in FIG. 4. By widening the distance W2, the bobbin B around which the tying string H is wound can be placed between the left support portion 30b and the right support portion 31b. At this time, to prevent the left holding bracket main body 30a and the right holding bracket main body 31a shown in FIG. 4 from being spread too far and not automatically returning to their original positions (the positions shown in FIG. 4), the right fixing portion 31c and the left fixing portion 30c intersect (intersect) as shown in FIG. This prevents the gap between the left support portion 30b and the right support portion 31b from widening beyond the gap W2 shown in Figure 4, thereby reducing the chance of the left retaining bracket main body 30a and the right retaining bracket main body 31a shown in Figure 4 not automatically returning to their original positions (the positions shown in Figure 4).

[0033] Next, when the pulling force on the left holding fitting main body 30a in the left direction shown in FIG. 4 is released and then the pulling force on the right holding fitting main body 31a in the right direction shown in FIG. 4 is released, the left holding fitting main body 30a and the right holding fitting main body 31a automatically return to their original positions (the positions shown in FIG. 4). As a result, the distance between the left support part 30b and the right support part 31b returns to the distance W2 shown in FIG. 4. At this time, as shown in FIG. 5(b), the left support part 30b is inserted into the axial hole Bba of the bobbin B. Although not shown, the right support part 31b shown in FIG. 4 is also inserted into the axial hole Bba of the bobbin B. As a result, the left support part 30b and the right support part 31b shown in FIG. 4 can support the bobbin B shown in FIG. 5(a). As a result, the bobbin B is rotatably held by the holder 3.

[0034] However, as described above, simply inserting the left support portion 30b and the right support portion 31b into the axial hole Bba of the bobbin B shown in Figure 5(b) and supporting the bobbin B may not result in smooth rotation of the bobbin B.

[0035] Therefore, in this embodiment, as shown in FIG. 4, the left first rotating body 32 and the left second rotating body 33 are provided on the left support portion 30b, and the right first rotating body 34 and the right second rotating body 35 are provided on the right support portion 31b. More specifically, as shown in FIG. 4, the left first rotating body 32 is formed in a circular shape and is rotatably mounted in pair on the left support portion 30b. As shown in FIG. 5(b), the diameter of the left first rotating body 32 is smaller than the diameter of the axial hole Bba of the bobbin B. Therefore, the pair of left first rotating bodies 32 are inserted into the axial hole Bba of the bobbin B. Furthermore, as shown in FIG. 4, the right first rotating body 34 is formed in a circular shape and is rotatably mounted in pair on the right support portion 31b. Although not shown, the diameter of the right first rotating body 34, like the left first rotating body 32, is smaller than the diameter of the axial hole Bba of the bobbin B. Therefore, the pair of right first rotating bodies 34 are inserted into the axial hole Bba of the bobbin B. This allows the bobbin B to rotate smoothly.

[0036] That is, when the left support portion 30b and the right support portion 31b are inserted into the axial hole Bba of the bobbin B shown in FIG. 5(b) and support the bobbin B, the bobbin B is supported with play to allow rotation. Therefore, as shown in FIG. 5(b), when the bobbin B rotates (see the direction of arrow Y1), the bobbin B rotates while moving up and down in the illustration. Therefore, as the bobbin B rotates, the axial hole Bba of the bobbin B comes into contact with the pair of left first rotating bodies 32 and right first rotating bodies 34, and accordingly, the pair of left first rotating bodies 32 and right first rotating bodies 34 also rotate together with the bobbin B in the direction of arrow Y2 shown in FIG. 5(b). This allows the bobbin B to rotate smoothly. Note that, as shown in FIG. 4, a left first fixing metal fitting 32a is crimped and fixed to the tip portion (right end portion in the illustration) of the left support portion 30b, preventing the pair of left first rotating bodies 32 from slipping out of the left support portion 30b. As shown in FIG. 4, a right first fixing bracket 34a is crimped and fixed to the tip portion (the left end portion in the figure) of the right support portion 31b, preventing the pair of right first rotating bodies 34 from slipping out of the right support portion 31b.

[0037] On the other hand, as shown in FIG. 4, the left second rotating body 33 is formed in a circular shape and is rotatably mounted on the left support portion 30b so as to be located on the left side of the pair of left first rotating bodies 32 (on the left holding fitting main body 30a side). As shown in FIG. 5(b), the diameter of the left second rotating body 33 is formed to be larger than the diameter of the axial hole Bba of the bobbin B. Therefore, as shown in FIG. 5(b), the left second rotating body 33 is configured to be unable to be inserted into the axial hole Bba of the bobbin B. As shown in FIG. 4, the right second rotating body 35 is formed in a circular shape and is rotatably mounted on the right support portion 31b so as to be located on the right side of the pair of right first rotating bodies 34 (on the right holding fitting main body 31a side). Although not shown, the diameter of the right second rotating body 35 is formed to be larger than the diameter of the axial hole Bba of the bobbin B, similar to the left second rotating body 33. Therefore, the right second rotating body 35 is configured to be unable to be inserted into the axial hole Bba of the bobbin B. This reduces the possibility that the bobbin B will not rotate smoothly due to contact with the left holding metal fitting main body 30a or the right holding metal fitting main body 31a shown in FIG.

[0038] That is, as described above, when the left support portion 30b and the right support portion 31b are inserted into the axial hole Bba of the bobbin B shown in FIG. 5(b) and support the bobbin B, the bobbin B is supported with play to allow rotation. Therefore, as shown in FIG. 5(b), when the bobbin B rotates (see the direction of arrow Y1), the bobbin B also moves left and right while rotating. Therefore, without the left second rotating body 33 and the right second rotating body 35 shown in FIG. 4, the bobbin B may come into contact with the left holding bracket main body 30a or the right holding bracket main body 31a shown in FIG. 4. If this contact occurs, the rotation of the bobbin B may stop, and the bobbin B may not rotate smoothly. Therefore, in this embodiment, the left second rotating body 33 and the right second rotating body 35 shown in FIG. 4 are provided, thereby preventing the bobbin B from coming into contact with the left holding bracket main body 30a or the right holding bracket main body 31a shown in FIG. 4. This reduces the likelihood of the bobbin B not rotating smoothly. Furthermore, since the left second rotating body 33 and the right second rotating body 35 are rotatably mounted on the left support part 30b and the right support part 31b, the rotation of the bobbin B (see the direction of arrow Y1 shown in FIG. 5(b)) also encourages the left second rotating body 33 and the right second rotating body 35 to rotate (see the direction of arrow Y2 shown in FIG. 5(b)). This prevents the bobbin B from coming into contact with the left second rotating body 33 and the right second rotating body 35, thereby preventing the rotation of the bobbin B from being stopped. As shown in FIG. 4, a left second fixing metal fitting 33a is crimped and fixed to the base end portion (the left end portion shown in the figure) of the left support part 30b. As the left second rotating body 33 rotates, it moves leftward as shown in FIG. 4, preventing it from coming into contact with the left holding metal fitting main body 30a. As shown in FIG. 4, the right second fixing bracket 35a is crimped and fixed to the base end portion (the right end portion shown in the figure) of the right support portion 31b, and as the right second rotating body 35 rotates, it moves in the right direction shown in FIG. 4 so as not to come into contact with the right retaining bracket main body 31a.

[0039] <Cover explanation> The cover 4 serves to reduce the wetting of the bobbin B with water, and is made of a material such as Tarpaulin (registered trademark). Specifically, as shown in Fig. 1, the cover 4 has a rectangular cover body 40 in a side view, and a small, horizontally elongated rectangular transparent window 41 is provided on the top surface 40a of the cover body 40. This small window 41 allows the inside of the cover body 40 to be seen from the outside.

[0040] On the other hand, the inside of the cover body 40 is formed hollow, and as shown in FIGS. 1 and 2, the upper surface 40a of the cover body 40 is closed and the lower surface 40b is open.

[0041] As shown in FIG. 1, a pair of through holes 40a1 extend vertically through the top surface 40a of the cover body 40. As shown in FIG. 1, the left fixing portion 30c is inserted into the through hole 40a1 located on the left side of the figure, and the right fixing portion 31c is inserted into the through hole 40a1 located on the right side of the figure. As a result, of the left holding fitting 30 shown in FIG. 4, as shown in FIG. 1, a portion of the left fixing portion 30c is exposed to the outside of the cover body 40, but the rest is disposed inside the cover body 40. Furthermore, as shown in FIG. 1, the right holding fitting 31 shown in FIG. 4 also has a portion of the right fixing portion 31c exposed to the outside of the cover body 40, but the rest is disposed inside the cover body 40. As a result, when the bobbin B is rotatably held by the holder 3 as shown in FIG. 5(a), the upper and side surfaces of the bobbin B are covered by the cover body 40, as shown in FIGS. 1 and 2. Therefore, the cover body 40 can reduce the bobbin B from getting wet.

[0042] Meanwhile, as shown in Fig. 2, the cover body 40 of the cover 4 configured as described above has a circular hole 40a2 on the top surface 40a side that communicates between the inside and outside of the cover body 40. A tying string H shown in Fig. 5(a) can be passed through this hole 40a2 to expose the tying string H shown in Fig. 5(a) to the outside of the cover body 40. This allows a worker or the like to pull the exposed tying string H and pull it out of the bobbin B shown in Fig. 5(a). Therefore, this arrangement minimizes the risk of the tying string H getting wet.

[0043] The above is the detailed configuration of the bobbin holding device 1.

[0044] <Explanation of an example of use of the bobbin holding device> Next, an example of how the bobbin holding device 1 configured as above is used will be described.

[0045] The bobbin holding device 1 configured as described above is fixed to the bucket part BA shown in Fig. 6. Explaining in more detail, the bucket part BA shown in Fig. 6 is provided on an aerial work vehicle (not shown), and a worker or the like climbs onto this bucket part BA and uses a tying string H shown in Fig. 5(a) to tie up messenger wires, power cables, etc. In this case, the worker or the like fixes the bobbin holding device 1 shown in Fig. 1 to the bucket part BA. Specifically, as shown in Fig. 6, the bobbin holding device 1 is fixed to the side wall BAa of the bucket part BA. Explaining in more detail, as shown in Fig. 7, the attachment part main body 20 of the attachment part 2 is hooked to the side wall BAa of the bucket part BA so that the tip end 20a of the attachment part main body 20 is located on the outer wall surface BAa1 side of the side wall BAa of the bucket part BA. That is, as shown in FIG. 7 , when the attachment body 20 is hooked onto the side wall BAa of the bucket portion BA so that the attachment body 20 sandwiches the side wall BAa of the bucket portion BA, the tip end 20a is pulled to the right as shown in FIG. 7 and moves slightly to the right. This increases the width between the tip end 20a and the base end 20b, allowing the attachment body 20 to be hooked onto the side wall BAa of the bucket portion BA. Therefore, as shown in FIG. 7 , the base end 20b of the attachment body 20 is positioned on the inner wall surface BAa2 side of the side wall BAa of the bucket portion BA. Therefore, as shown in FIG. 6 , the bobbin B shown in FIG. 5( a) rotatably held by the holder 3 can be positioned on the inner wall surface BAa2 side of the side wall BAa of the bucket portion BA with the top and sides covered by the cover 4. As a result, by simply hooking the mounting body 20 onto the side wall BAa of the bucket portion BA, the bobbin holding device 1 can be fixedly disposed on the bucket portion BA as shown in Fig. 6. When the bobbin holding device 1 is fixedly disposed on the bucket portion BA, as shown in Fig. 6(a), the tying string H is slightly pulled out from the hole 40a2 shown in Fig. 2.

[0046] Next, as shown in FIG. 6(b), the worker or the like pulls the tying string H to the left in the drawing, and the tying string H can be pulled out from the bobbin B shown in FIG. 5(a). This allows the worker or the like to tie down messenger wires, power cables, etc.

[0047] 6(b), if the tying cord H is pulled to the left as shown in the figure, a force is also applied to the mounting part 2 shown in Fig. 6 in the left direction as shown in the figure, causing the mounting part 2 to shake. If this happens, there is a possibility that the mounting part main body 20 will come off the side wall BAa of the bucket part BA in reaction to the shaking.

[0048] Therefore, in this embodiment, to prevent the above-mentioned shaking, an anti-sway portion 21 is provided as shown in FIGS. 1 and 3. As a result, as shown in FIG. 7, when the mounting body 20 is hooked onto the side wall BAa of the bucket BA, the protrusion 21c of the anti-sway portion 21 comes into contact with the outer wall surface BAa1 of the side wall BAa of the bucket BA. Therefore, when a force is applied to the mounting body 2 in the left direction as shown in FIG. 6(b), the protrusion 21c of the anti-sway portion 21 shown in FIG. 7 continues to come into contact with the outer wall surface BAa1 of the side wall BAa of the bucket BA. Therefore, the protrusion 21c of the anti-sway portion 21 can prevent the mounting body 2 from shaking. Therefore, providing such an anti-sway portion 21 can reduce the occurrence of the mounting body 20 coming off the side wall BAa of the bucket BA.

[0049] Thus, what has been described above is one example of how the bobbin holding device 1 can be used.

[0050] Therefore, according to the present embodiment described above, the bobbin holding device 1 can be fixedly disposed on the bucket portion BA simply and easily, and the bobbin B can be prevented from getting wet with water.

[0051] <Description of Modifications> It should be noted that the shapes and the like shown in this embodiment are merely examples, and various modifications and changes are possible within the scope of the gist of the present invention as set forth in the claims. For example, the cover part 4 is configured to cover the top and sides of the bobbin B, but the cover part 4 may also cover the entire periphery of the bobbin B. In this case, it is preferable that the cover part 4 is provided with a member that can open and close the bottom of the bobbin B. This is because it makes it easier to hold the bobbin B rotatably in the holding part 3.

[0052] Furthermore, in this embodiment, an example has been shown in which the cover part 4 is provided with the hole 40a2 that connects the inside and outside of the cover part main body 40, but the tying string H may be pulled out from below the cover part main body 40 without providing this hole 40a2. However, providing the cover part 4 with the hole 40a2 that connects the inside and outside of the cover part main body 40 is preferable because it minimizes the situation in which the tying string H gets wet. [Explanation of symbols]

[0053] 1. Bobbin holding device 2 Mounting part 21 Anti-vibration part 3 Holding part 30 Left retaining bracket (retaining bracket) 30b Left support part (one end) 30c Left fixed part (other end) 31 Right retaining bracket (retaining bracket) 31b Right support part (one end) 31c Right fixed part (other end) 32 Left first rotating body (first rotating body) 33 Left second rotating body (second rotating body) 34 Right first rotating body (first rotating body) 35 Right second rotating body (second rotating body) 4 Cover 40a2 hole W2 interval (first interval) B Bobbin Bba shaft hole H Binding string (string) BA bucket section BAa Side wall (specified location)

Claims

1. A bobbin holding device that holds a bobbin around which a string for tying a power cable or the like is wound, a holding portion that rotatably holds the bobbin; an attachment portion provided on the holding portion; a cover portion that covers the bobbin so as to cover at least the upper and side portions of the bobbin rotatably held by the holding portion, The bobbin holding device is configured so that the bobbin holding device can be fixedly disposed on the bucket portion by hooking the attachment portion onto a predetermined location on the bucket portion.

2. 2. The bobbin holding device according to claim 1, wherein the cover portion has a hole through which the string can be pulled out from the cover portion.

3. 3. The bobbin holding device according to claim 1, wherein the mounting portion is provided with a vibration prevention portion that prevents the mounting portion from vibrating when the bobbin holding device is fixed to the bucket portion.

4. The holding portion includes a pair of holding fittings, one end of the pair of retaining fittings is arranged at a first position with a first interval therebetween, and when rotatably holding the bobbin, the one end of the pair of retaining fittings is adapted to be spread apart to a second position with a second interval therebetween that is wider than the first interval, 3. The bobbin holding device according to claim 1, wherein the other ends of the pair of holding metal fittings intersect with each other so that the one ends of the pair of holding metal fittings do not extend beyond the second interval.

5. The bobbin is rotatably held by inserting one end of each of the pair of retaining metal fittings into axial holes provided on both side surfaces of the bobbin, a first rotor having a diameter smaller than the diameter of the shaft hole is rotatably provided at one end of the pair of retaining fittings; 5. The bobbin holding device according to claim 4, wherein the first rotor is inserted into the shaft hole and rotates with the rotation of the bobbin.

6. The bobbin is rotatably held by inserting one end of each of the pair of retaining metal fittings into axial holes provided on both side surfaces of the bobbin, a second rotor having a diameter larger than the diameter of the shaft hole is rotatably provided at one end of the pair of retaining fittings; 5. The bobbin holding device according to claim 4, wherein the second rotating body is not inserted into the axial hole and rotates in accordance with the rotation of the bobbin.

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