JPH04115868U - Cable winding and unwinding device - Google Patents

Abstract

(57) [Summary] [Purpose] Even with conductive wires, drainage hoses, or cable-shaped bodies that cannot be separated in the middle, twisting of the cable-shaped bodies can be avoided as much as possible even when the rotating body rotates. To provide a device capable of winding and unwinding at low cost. [Structure] A winding portion 10 of a winding drum 9 connected to a rotating shaft 7 that rotates within a predetermined rotation angle range is connected to a rotating drum 12 that rotates integrally with the rotating shaft 7 and a winding state. A take-out section 13 is configured to allow the part of the cord-like body 8 at the winding start end to be taken out inside the rotary drum, and the part of the cord-like body 8 at the winding end end in the wound state is fixed in a fixed position. The fixing part 14 further includes a slack reservoir part 11 provided below the rotary barrel 12 with a space 20 that allows the cable-like body 8 to hang down as the rotary shaft 7 rotates in the feeding direction at a predetermined rotation angle. We are prepared.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for the conductive wires, wires, and drainage hoses used in the underground pipe propulsion method. The structure is such that various cable-like bodies are held by a winding drum attached to a rotating shaft. The present invention relates to a winding and unwinding device for a cord-like body.

0002

[Conventional technology]

Conventionally, in this type of winding and unwinding device, for example, in the case of a conductive wire, as shown in FIG. The conductive wire 8 is separated at the inner circumferential side of the rotating shaft 7 so that the conductive wire 8 is located inside the rotating shaft 7. A part a and a part of the conductive wire 8a located outside the rotating shaft 7 are connected with a well-known brush 23. The connection was made using sliding contacts. In addition, for transportation piping for fluids other than conductive wires, we use the well-known rotary joint. There are also hoses and wires that can be cut in the middle. If it is not possible to do so, the rotating body is attached so that it can rotate freely relative to the rotating shaft. Ta.

0003

[Problem that the idea aims to solve]

In the conventional winding and unwinding device configured as described above, The sliding contact of the brushes tends to generate noise, and is often used in various control equipment. There is a problem that it has a negative effect on the rotary joint and measuring equipment. However, there is a problem in that the overall cost increases extremely. And this A common problem for both is that There is also the problem that it cannot be applied. Furthermore, the relatively rotatable rotating body may be The structure used has the advantage of being able to wind up and unwrap the cord-like body that cannot be separated. This technology has advantages not found in the conventional technology, but on the other hand, as the rotary drum rotates, cable-like The fatal problem is that the body is twisted and the durability of the cord is easily reduced. There is. The present invention can also be applied to cords that cannot be separated in the middle. In addition, the winding system is designed to avoid torsion of the cord as much as possible even when the rotating drum rotates. The purpose is to provide a feeding device at a low cost.

0004

[Means to solve the problem]

The technical means of the present invention taken to achieve the above objective are as follows: Winding and unwinding of a cable-shaped body equipped with a winding drum connected to a rotating pivot shaft The apparatus is equipped with the configurations described in [A] to [C] below. [B] The winding drum is capable of storing a winding portion of the cord and the cord. It is equipped with a slack storage part. [B] The winding section includes a rotating body that rotates together with the rotating shaft, and a rope in a winding state. A retrieval system configured to allow the part of the body at the winding start end to be removable into the inside of the rotating body. and a fixing part that fixes the winding end end side part of the coiled body in a fixed position. It is equipped with [C] The slack reservoir portion is provided at a lower position of the rotary barrel so that the rotary shaft can be rotated at a predetermined rotation angle. It has a space that allows the cable-like body to hang down as it rotates in the direction of extraction. In addition, the cable-shaped body has a wire inside a flexible cylindrical body that is more slippery than its outer surface. It may be configured as follows.

[0005]

[Effect]

The effects of taking the above technical measures are as follows. a. Since the rotating body rotates together with the rotating shaft, the cable-shaped body wrapped around its outer circumference rotates. There is no rotation relative to the axis and therefore no twisting. b. The part of the cable at the end of the winding is fixed in place and relaxed below the rotating barrel. Because there is a space in the reservoir, the cord that is about to be drawn out as the rotation axis rotates. , are stored in a predetermined position in an orderly manner without escaping to the outside. c. The cord-like body is composed of a flexible cylindrical body with a slippery outer surface and a wire inside. If so, make sure that the cables hang down smoothly as the rotary barrel rotates in the feeding direction. Easy to put on.

[0006]

[Effect of the idea]

Above a. , b. According to the present invention, from the action of It has the advantage of being able to be wound up and unwound without twisting, so even conductive wires can be easily brushed. Winding and unwinding can be performed while avoiding noise caused by the use of It also eliminates the use of expensive rotary joints, even for fluid transport hoses. There is an effect that can be done. Above c. Due to the action of The cord-like body can be smoothly transferred to the reservoir.

[0007]

【Example】

Embodiments of the present invention will be described below based on the drawings. The winding and unwinding device of the present invention is used for winding and unwinding conductive wires used in the underground pipe propulsion method. The case where it is applied to the display is shown. First, I will explain the propulsion device used in the buried pipe propulsion method, as shown in Figure 3. A propulsion device that presses a buried pipe 2 connected to a propulsion head 1 in a construction pit 5. A pressing member 3 for propulsion of the head 1 is provided, and a buried pipe 2 with a small diameter of, for example, 50 to 70 mm is provided for propulsion. A guide member 4 is provided to hold the guide member 4 so as not to bend as it is pressed by the pressing member 3, A winding device 6 that winds up the buried pipe 2 is located outside the upper part of the construction pit 5. They can be freely installed to form a propulsion device for propulsion construction methods. The winding device 6 is configured to push the buried pipe 2 by the same amount as the pushing force of the pushing member 3. The amount of drive by the drive device (not shown) is adjusted so that the rotation is driven by the same amount. , are controlled using appropriate control means. Also, the buried material being wound on the winding device 6 is The end of the installed pipe 2 opposite to the side connected to the propulsion head 1 is used for winding. It is fixed near the center of the device 6, and its end opening forms a hollow part of the winding device 6. It communicates with the internal space of the rotation shaft 7 of.

[0008] In contrast to this propulsion device, the winding and unwinding device of the present invention has the winding device 6. It is provided in the following manner so as to be interlocked with the rotation shaft 7. The winding and unwinding device includes a winding drum 9 for winding up and unwinding the cord 8; and a drive means for the winding drum 9. In this case, the drive means is the above-mentioned drive means. The rotation shaft 7 of the propulsion device is utilized and is arranged close to the side of the propulsion device.

[0009] The winding drum 9 is capable of storing a winding portion 10 of the cable-shaped body and the cable-shaped body 8. The winding section 10 is configured to include a slack reservoir section 11 that can accommodate the slack. a rotating barrel 12 that rotates together with a hollow rotating shaft 7 extending laterally outward from the device; , the part of the coiled body 8 on the winding start end side can be taken out to the inside of the rotating body. The take-out portion 13 configured as shown in FIG. It is provided with a fixing part 14 that fixes it in a fixed position. Note that this cable-shaped body 8 is one of the wire rods. For example, a plurality of conductive wires 8a are connected to a flexible cylindrical body 8A composed of a bellows-shaped flexible tube. The flexible cylindrical body 8A is configured to be internally connected to the outer surface of each conductive wire 8a. It is made of a material that is more slippery than the surface.

0010 The rotating barrel 12 of the winding section 10 is a cylindrical body 15 fixed to a hollow rotating shaft 7. and erected on the outer peripheral surface of the cylindrical body 15 at intervals that allow the cord-like body 8 to be wound. It is composed of two disc-shaped members 16. The cylindrical body 15 is provided with a communication hole 13a through which the cord-like body 8 can be inserted. This communication hole 13a is connected to the inner side of the rotating body 12 of the cable-like body 8 on the winding start end side. It constitutes a take-out section 13. Also, near the center of the disc-shaped member 16, At a position near the communication hole 13a, there is a fixing member for fixing the winding start end of the cord-shaped body 8. A U bolt is provided as a fixture 17. Further, on the outer peripheral side of the disc-shaped member 16, is curved toward the side where the two disc-shaped members 16 are separated from each other at appropriate intervals in the circumferential direction. A guide protrusion 16a that is bent and guides the insertion of the cable-like body 8 is integrally formed. Ru. The winding end end side of the cable-shaped body 8 is located above the rotary body 12, A fixing device having a U-shaped portion along the outer periphery of the cable member 8 is attached to the open box-like case 19. It is fixed via a metal fitting 14a. In other words, the fixing fitting 14a allows the winding A fixing portion 14 is formed at the end end side. In the figure, reference numeral 18 indicates a function to prevent the cable-shaped body 8 from expanding radially outward and escaping. It is a regulating body 18 that is arranged along the outer peripheral edge of the disc-shaped member 16 and along the guide. Both ends are fixed to the box-like case 19 so as not to protrude beyond the protrusion 16a. It is provided.

[0011] The slack reservoir portion 11 is located at a lower position of the rotating barrel 12 by the box-like case 19. Allowing the cable-shaped body 8 to hang down as the rotation shaft 7 rotates in the feeding direction at a predetermined rotation angle. It constitutes a space 20. In other words, this box-like case 19 has a predetermined position on the rotation shaft 7. The cord 8, which is wound around the rotary cylinder 12 as the volume rotates, is shown in phantom in FIG. When the cord-like body 8 hangs down, it can be held without causing large twists. A space 20 is formed inside the space 20 to the extent that it can be used. The box-like case 19 has mounting brackets 19 provided on both sides in the width direction. It is connected and fixed to the support base 6A of the propulsion device via a and 19b. Also, On the inner side of the box-like case 19 and on the side near the fixed part on the winding end side, there is a rotating As the rolling cylinder 12 rotates in the unwinding direction (in the direction of arrow A shown in Fig. 1), a drooping shape appears. The cable-like body 8 that becomes A guide plate 21 is provided to provide guidance when the vehicle is opened.

0012 The reference numeral 22 shown in FIG. 2 is a propulsion head provided at the tip of the buried pipe 2 of the propulsion device. 1 is connected to a pressure oil supply pipe 8B for supplying pressure oil for operating the direction control mechanism. It is a rotary joint and thus has high strength to transport high pressure fluid. If this is required, a dedicated piping separate from the cable body 8 is used, and It is desirable to use the rotary joint 22 accordingly. The pressure oil supply pipe 8 B passes through the inside of the hollow rotation shaft 7 separately from the cable-shaped body 8 and is connected to the propulsion device. From the starting end opening of the buried pipe 2 wound around the winding device 6, there are two rows of buried pipes. Ru.

[0013] [Another example] In the above embodiment, the cable-like body 8 is a flexible cylindrical body 8A with conductive wires inside. However, you can use any wire, drainage hose, etc. as the internal wire material. You can choose. Also, wire rods such as conductive wires can be directly connected without using the flexible cylindrical body 8A at all. It may also be installed inside. The drive source for the winding drum 9 of the winding and unwinding device is the rotating shaft 7. Not only those that use rotation, but also various other types such as those that use dedicated drive motors. It may also be possible to use the driving force of In addition, as the slack reservoir portion 11 that allows the cable-shaped body 8 to hang down, the box-shaped case described above is used. Not limited to 19, use the gaps created by the arrangement of various related work equipment. Alternatively, the cables 8 may simply hang freely below the rotating barrel 12. You can simply set up a space where you can relax. Furthermore, the device for winding up and unwinding the rope-shaped body 8 of the present invention is used in the above-mentioned propulsion method. Winding of cable-like bodies 8 installed on various types of rotation shafts 7, not limited to those for use inside buried pipes. It can be applied to various types of feeding devices.

[0014] In addition, symbols are written in the claims section of the utility model registration for convenience of comparison with the drawings. However, the present invention is not limited to the configuration shown in the attached drawings.

[Brief explanation of drawings]

[Fig. 1] Partially cutaway side view showing the entire winding and feeding device

[Fig. 2] Cross-sectional view taken along line a-a in Fig. 1

[Figure 3] Schematic side view showing the entire buried pipe propulsion device

[Fig. 4] Partial sectional view showing a conventional winding and unwinding device

[Explanation of symbols]

7 Rotation axis 8 Funicular body 8A Flexible cylindrical body 8a Wire rod 9 Winding drum 10 Winding section 11 Slack reservoir 12 Rotating cylinder 13 Removal section 14 Fixed part 20 Space

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Tomasa Kawabata 1-1-1 Hama, Amagasaki City, Hyogo Prefecture Co., Ltd. Inside Kubota Technology Development Laboratory

Claims (2)

[Scope of utility model registration request] [Claim 1] A winding drum (9) connected to a rotation shaft (7) that rotates within a predetermined rotation angle range, and the configuration described in [A] to [C] below. A cord-like body winding and unwinding device. [B] The winding drum (9) has a winding portion (10) of the cord-like body and a cord-like body (8).
and a slack reservoir (11) capable of storing slack. [B] The winding section (10) is connected to the rotation shaft (7).
a rotating barrel (12) which rotates together with the coiling body, a take-out part (13) configured to be able to take out the winding start end portion of the cord-like body (8) in a wound state to the inside of the rotating barrel; It is provided with a fixing part (14) that fixes a portion of the coiled body (8) on the winding end side in a fixed position. [C] The slack storage portion (11) is a space located below the rotating barrel (12) that allows the cable-like body (8) to hang down as the rotating shaft (7) rotates in the feeding direction at a predetermined rotation angle. (20). 2. The cord-like body (8) includes a wire rod (8a),
2. The cord-like body winding and unwinding device according to claim 1, wherein the cord-like body winding-up and unwinding device is constructed internally in a flexible cylindrical body (8A) that is more slippery than its outer surface.