Take-up machine

Abstract

To provide a winding machine capable of efficiently and safely winding a rope, a wire, an electric cable and the like in electrical work at a high place.SOLUTION: Hexagonal holes 22, 22 into which an output shaft body of an electric driver is inserted are provided on both end faces 9C, 9C of a drive shaft 9 that rotates a drum 8 via a gear.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a winding machine. [Background technology]

[0002] 2. Description of the Related Art Conventionally, in electrical work at height, a worker rides in a work bucket provided at the tip of a boom of an aerial work vehicle to carry out electrical work on overhead electric wires, etc. At that time, the worker in the work bucket grasped the electric wire placed on the ground with his hands and pulled it up. 2. Description of the Related Art Conventionally, a winding machine with a manual handle that winds a wire such as a rope or an electric wire onto a drum has been publicly known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 60-90263 Summary of the Invention [Problem to be solved by the invention]

[0004] The winding machine described in the above Patent Document 1 is a relatively large winding machine that is installed on the ground for use. Such a large winding machine is heavy and large in volume, and is therefore unsuitable for mounting on the work bucket of the above-mentioned aerial work vehicle for performing work at height.

[0005] Therefore, the present inventors have prototyped a miniaturized winding machine 51 as shown in Figs. 9 and 10, and conducted experiments and studies on performing various high-altitude work. A prototype winding machine 51 that has been made compact and lightweight for use at high altitudes is shown in Figs.

[0006] As shown in Figures 9 and 10, this prototype winding machine 51 is mounted on an arm 52 at the top of a utility pole. Specifically, it has a drum (winding body) 54 for winding a filament 53 such as a rope, wire, electric cable, etc., and a drive shaft 55 arranged parallel to the rotation axis of this drum 54, and the drum 54 and drive shaft 55 are rotatably supported on a sheet metal base frame 56 and are interlocked with each other by a gear meshing mechanism 57. Reference numeral 58 denotes a manual handle attached to one end of the drive shaft 55 protruding outward from one side of the base frame 56, and the drum 54 rotates by rotating the handle 58 in the direction of the arrow X. The base frame 56 also has a gate-shaped mounting member 59 on its bottom surface, which is fitted into the bracket 52 from above and attached with bolts 60, 60.

[0007] (Although not shown) a worker riding on a work bucket of a vehicle for working at height approaches from the left side of Figures 9 and 10. In other words, even if the worker attempts to rotate the manual handle 58 in the direction of arrow X while approaching from the left side of Figures 9 and 10, a part of the handle 58 interferes with the cross arm 52, preventing the handle from rotating.

[0008] In Figure 9, if the mounting member 59 is moved all the way to the outermost end (left end face) 52E of the arm 52 and secured with bolts 60, 60, the handle 58 will somehow be able to rotate, but since there is an increased risk of the winding machine 51 falling from the arm 52 which is located high up on the utility pole, the winding machine mounting position in Figures 9 and 10 was the limit from the standpoint of work safety.

[0009] Furthermore, if one were to imagine attempting to attach the winding machine 51 in a mounted state to the upper edge of the work bucket of an aerial work vehicle (although not shown), it would be clear that the manual handle 58 would interfere with the upper edge of the work bucket, just as in Figures 9 and 10, and therefore a conventional winding machine 51 could not be attached to the work bucket.

[0010] Therefore, the object of the present invention is to solve such conventional problems and provide a winding machine that allows a worker standing in the work bucket of an aerial work vehicle to efficiently and safely wind up filaments such as ropes, wires, and electric cables. [Means for solving the problem]

[0011] Therefore, the present invention provides a winding machine that is attached to the upper edge of a work bucket provided at the tip of the boom of an aerial work vehicle, or to a high mounting portion of a utility pole, and winds up a filament such as a rope, wire, or electric cable, and is equipped with: a drum around which the filament can be wound; a drive shaft provided parallel to the rotational axis of the drum; and a gear meshing mechanism that transmits the rotational torque of the drive shaft to the drum; and both end faces of the drive shaft are recessed with hexagonal holes into which the output shaft of an electric screwdriver, which has a hexagonal cross section, can be freely inserted and removed.

[0012] In addition, under conditions in which the insulation operating stick used by a worker for high-altitude electrical work in the work bucket of the aerial work vehicle is equipped with a tip rotating tool for stripping off the coating layer of electric wires, etc., and a stick hexagonal hole portion for driving the tip rotating tool is recessed in the middle or toward the base end, into which the output shaft of an electric screwdriver can be freely inserted and removed, each hexagonal hole portion on both end faces of the drive shaft and the stick hexagonal hole portion are set to have the same cross-sectional dimensions and shape, making it possible to share one electric screwdriver within the work bucket.

[0013] In addition, when the work bucket is attached from above in a placed state to the upper edge of the work bucket or to a high mounting portion of a utility pole, the height dimension of the axis of the hexagonal hole portion from the upper edge and the top surface of the mounting portion is set to be slightly larger than half the vertical dimension of the cross section of the body of the electric screwdriver when the output shaft of the electric screwdriver is horizontal and the grip portion is horizontal in a sideways position. Effect of the Invention

[0014] According to the present invention, it is possible to wind (and unwind) the wire reliably, easily and quickly with a small electric screwdriver without worrying about interference with the manual handle of the winding machine (with other objects), which contributes to improving the work efficiency of electrical work. Moreover, the electric screwdriver normally used in the work bucket can be used as is, which is very convenient and does not require bringing another work tool into the work bucket. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing an embodiment of the present invention. [Diagram 2] FIG. 1 shows an embodiment of the present invention, in which (A) is a front view and (B) is an enlarged cross-sectional view of a main portion. [Diagram 3] FIG. 2 is a perspective view showing an example of a usage state. [Figure 4] FIG. 2 is a perspective view of a main part showing an example of a usage state. [Diagram 5] FIG. 11 is a perspective view of a main part showing another example of a usage state. [Figure 6] FIG. 11 is a perspective view for explaining another state of use. [Figure 7] FIG. 7 is an enlarged view of a main part of FIG. 6. [Figure 8] FIG. 4 is a diagram for explaining the relationship of height dimensions of main parts. [Figure 9] FIG. [Figure 10] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The present invention will be described in detail below based on the illustrated embodiments. In Figures 1 to 5, Y denotes a winding machine according to the present invention, which is attached to the upper edge 30 of a work bucket 3 provided at the tip of a boom 2 of an aerial work vehicle 1 (see Figure 5), or is attached to a mounting portion G such as a high-altitude arm 5 of a utility pole 4 (see Figures 3 and 4) for use.

[0017] The work bucket 3 is a generally rectangular box-shaped opening upward when viewed from above, and is provided with a drum (winding body) 8 for winding up a filament 6 such as a rope, a wire, or an electric cable, as shown in Figs. Further, a drive shaft 9 is provided parallel to the rotation axis L8 of the drum 8.

[0018] Reference numeral 10 denotes a base frame made of sheet metal or the like, and this base frame 10 has a bottom plate portion 10A and left and right standing plate portions 10B, 10B. Furthermore, it has a gear meshing mechanism 11 that transmits the rotational torque of the drive shaft 9 to the drum 8. It is desirable to transmit the rotational torque to the drum 8 while reducing the rotational speed of the drive shaft 9, thereby increasing the rotational torque.

[0019] Both end faces 9C, 9C of the drive shaft 9 are recessed to form a hexagonal hole 22 into which an output shaft body (hexagonal rod portion) 21 having a hexagonal cross section of an electric screwdriver 20 can be inserted and removed (see FIG. 2).

[0020] That is, as shown in FIG. 2, either the left or right hexagonal hole 22, 22 can be selected and the output shaft body (hexagonal rod portion) 21 of the electric screwdriver 20 can be freely inserted from either the left or right side of the figure. As a method for recessing the above-mentioned hexagonal hole portion 22, it is also preferable to fix a hexagonal hole socket.

[0021] As shown in Figures 4 and 5, two hanging pieces 10C, 10C are provided parallel to each other downward from the bottom plate portion 10A of the base frame 10. When the base frame 10 is placed on the upper edge portion 30 of the work bucket 3 as shown in Figure 5, the hanging pieces 10C, 10C sandwich the upper edge portion 30 of the work bucket 3 from both the inside and outside, and the bolts 12, 12 (in Figure 5) are screwed in to firmly attach the winder Y in a stable position.

[0022] Furthermore, as shown in Figure 4, when the base frame 10 is placed on the mounting portion G (arm 5) at a high point on the utility pole 4, the hanging pieces 10C, 10C are sandwiched from both the left and right sides of the cross section of the mounting portion G (arm 5), and the bolts 12, 12 (in Figure 4) can be screwed in to firmly mount the winding machine Y in a stable position.

[0023] Then, in the mounted state in which the bucket 3 is mounted from above on the upper end edge portion 30 (see FIG. 5) or the high mounting portion G (see FIG. 4) of the utility pole 4, the axis L of the hexagonal hole portion 22 is aligned with the center of gravity L of the bucket 3. 22 The height dimension from the upper surface 30A of the upper edge portion 30 and the upper surface Ga of the mounting portion G is H 22 Furthermore, when the output shaft 21 of the electric screwdriver 20 is horizontal and the grip portion 20G is horizontal, the vertical dimension of the cross section of the body 23 of the electric screwdriver 20 is H 23 Then, the above H is set so that the following formula 1 holds: 22 Set. H 23 / 2 <H 22 <H 23 …(Formula 1) Furthermore, it is preferable that the above H 22 Set. H 23 / 2 <H 22 <0.7H 23 …(Formula 2)

[0024] In the above formulas 1 and 2, H 22 becomes equal to the lower limit value, the body 23 of the electric screwdriver 20 interferes with the upper surface 30A of the upper edge portion 30 or the upper surface Ga of the mounting portion G, making it difficult to smoothly insert the output shaft 21 of the electric screwdriver 20 into the hexagonal hole portion 22, thereby reducing work efficiency.

[0025] Conversely, in the above formulas 1 and 2, H 22 If exceeds the upper limit, an unnecessarily large external force (moment) will act on the winder Y, which may cause problems such as the mounting bolts 12, 12, etc. becoming loose.

[0026] However, at least the axis L of the hexagonal hole portion 22 22 Height dimension H 22 The vertical dimension H of the cross section of the body 23 of the electric screwdriver 20 is set to H. 23Half of (H 23 It is advisable to set it slightly larger than 1 / 2.

[0027] Next, referring to Figs. 6 and 7, there is shown an example of a state in which a worker M is using an insulated operation stick 13 to perform electrical work at high altitudes in the work bucket 3 of the vehicle for working at high altitudes 1 (see Fig. 3).

[0028] Incidentally, this operating stick 13 is equipped with a tip rotating tool 14 for stripping off the coating layer of an electric wire, etc., and furthermore, a stick hexagonal hole portion 15 for driving (rotating) the tip rotating tool 14 is recessed in the middle or near the base end of the stick 13, and this stick hexagonal hole portion 15 is structured so that the output shaft body (hexagonal rod portion) of an electric screwdriver can be freely inserted and removed.

[0029] Therefore, the cross-sectional dimensions and shape of each hexagonal hole 22 on both end faces 9C, 9C of the drive shaft 9 according to the present invention are set to be the same as the cross-sectional dimensions and shape of the stick hexagonal hole 15 described above.

[0030] In Figure 6, Z1, Z2, Z3, and Z4 indicate locations where the winding machine Y of the present invention (not shown) can be attached - that is, any of the four sides of a rectangle when viewed in a plane - and therefore, within the work bucket 3, a worker M can share a single electric screwdriver 20, and can efficiently perform different tasks by quickly and selectively using the operating stick 13 and the nearby winding machine Y (not shown). 1 and 2, reference numeral 18 denotes a ratchet lever which can be freely engaged with and disengaged from some of the gears constituting the gear meshing mechanism 11 and can be switched to prevent the drum 8 from rotating in the reverse direction as required.

[0031] As described above in detail, the present invention is a winding machine that is attached to the upper edge portion 30 of a work bucket 3 provided at the tip of a boom 2 of an aerial work vehicle 1, or to a high-placed mounting portion G of a utility pole 4, and winds up a filament 6 such as a rope, wire, electric cable, etc. The winding machine comprises: a drum 8 on which the filament 6 can be freely wound; a drive shaft 9 provided in parallel with a rotation axis L8 of the drum 8; and a gear meshing mechanism 11 that transmits the rotation torque of the drive shaft 9 to the drum 8. Since the output shaft 21 of the driver 20, which has a hexagonal cross section, is recessed with a hexagonal hole 22 into which it can be freely inserted and removed, the problem of the manual handle 58 colliding with the cross arm 52 or the upper edge of the work bucket and being unable to rotate as described in the conventional example in Figures 9 and 10 can be solved with a simple structure, and the worker in the work bucket of the aerial work vehicle can efficiently and safely wind up the wire 6 such as rope, wire, electric cable, etc. Furthermore, the winder Y can be installed in a position that is easy for the worker to use, which can further improve work efficiency.

[0032] In addition, under the following conditions: the insulation operation stick 13 used by the worker M for electrical work at high altitudes in the work bucket 3 of the aerial work vehicle 1 is equipped with a tip rotating tool 14 for stripping off the coating layer of electric wires, and a stick hexagonal hole portion 15 for driving the tip rotating tool 14 into which the output shaft of an electric screwdriver is inserted so as to be freely inserted and removed is recessed in the middle or near the base end; the hexagonal hole portions 22 on both end faces 9C, 9C of the drive shaft 9 and the stick hexagonal hole portion 15 are set to have the same cross-sectional dimensions and shape; and one electric screwdriver 20 can be shared in the work bucket 3, so that the electric screwdriver that has normally been used in the work bucket 3 can be reused as is, thereby further improving work efficiency, eliminating the trouble and selection error of the worker having to select two electric screwdrivers, and reducing the mental burden on the worker.

[0033] In addition, when the bucket 3 is mounted on the upper end edge 30 of the bucket 3 or the high mounting portion G of the utility pole 4 from above, the axis L of the hexagonal hole 22 is aligned with the center of gravity L of the bucket 3. 22The height dimension H from the upper surface 30A, Ga of the upper end edge portion 30 and the upper surface 30A of the mounting portion G 22 However, when the output shaft 21 of the electric screwdriver 20 is horizontal and the grip portion 20G is horizontal, the vertical dimension H of the cross section of the body 23 of the electric screwdriver 20 is 23 Since the length is set to be slightly larger than half of the width, it is possible to prevent the electric screwdriver 20 from interfering with the upper surface 30A on which the winding machine Y is attached (see Figures 5 and 8), thereby reducing mental fatigue and allowing electrical work to be performed smoothly and efficiently. [Explanation of symbols]

[0034] 1. Aerial work platform 2. Boom 3 Work bucket 4. Electric pole 6. Striatum 8 Drums 9 Drive shaft 9C End face 11 Gear engagement mechanism 13 Insulated operation stick 14 Tip rotating tool 15 Stick hexagonal hole 20 Electric screwdriver 20G Grip 21 Output shaft body 22 Hexagonal hole 23 Torso 30 Upper edge 30A top G Mounting part Ga top surface H 22 Height Dimensions H 23 Cross-sectional dimensions L8 rotation axis L 22 Axial center M worker

Claims

1. A winding machine that is attached to an upper edge portion (30) of a work bucket (3) provided at the tip of a boom (2) of an aerial work vehicle (1) or to a high-placed mounting portion (G) of a utility pole (4) and winds up a filament (6) such as a rope, wire, electric cable, etc. a drum (8) on which the filament (6) can be wound; The rotation axis of the drum (8) (L 8 A drive shaft (9) arranged in parallel to the a gear meshing mechanism (11) for transmitting the rotational torque of the drive shaft (9) to the drum (8); In a winding machine equipped with A hexagonal hole portion (22) is recessed on both end faces (9C) (9C) of the drive shaft (9) into which an output shaft body (21) of an electric screwdriver (20) having a hexagonal cross section is inserted so as to be freely inserted and removed. In a mounting state in which the bucket is mounted from above on the upper edge portion (30) of the work bucket (3) or the high mounting portion (G) of the utility pole (4), the height dimension (H 22 ) of the axis (L 22 ) of the hexagonal hole portion (22) from the upper edge portion (30) and the upper surface (30A) (Ga) of the mounting portion (G) is When the output shaft body (21) of the electric screwdriver (20) is horizontal and the grip portion (20G) is horizontal, the electric screwdriver (20) is laid down on its side, and the vertical dimension (H23) of the cross section of the body portion (23) of the electric screwdriver (20) is smaller than half of the vertical dimension (H23) of the cross section of the body portion (23) of the electric screwdriver (20). Winding machine set slightly larger.

2. Under the following usage conditions, an insulation operation stick (13) used by a worker (M) for electrical work at height in the work bucket (3) of the vehicle for working at height (1) is equipped with a tip rotating tool (14) for stripping off an electric wire coating layer, and a stick hexagonal hole portion (15) for driving the tip rotating tool (14) into which an output shaft of an electric screwdriver can be freely inserted and removed is recessed in the middle or near the base end, Each hexagonal hole portion (22) of both end faces (9C) (9C) of the drive shaft (9) and the stick hexagonal hole portion (15) are set to have the same cross-sectional dimensions and shape, 2. The winding machine according to claim 1, wherein one electric driver (20) can be shared within the work bucket (3).

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