JP2542558Y2 - Propellant take-up drum for propulsion method - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a propulsion body winding drum for a propulsion method, which is provided with a winding portion for winding a propulsion body for a propulsion method, which is formed by connecting a large number of propulsion tubes in a bendable manner.

[0002]

2. Description of the Related Art Hitherto, in the above-described propelling body winding drum for the propulsion method, the winding portion is arranged such that the rotation axis thereof is horizontal or substantially horizontal.

[0003]

However, in the above configuration, the winding portion is arranged so that the rotation axis thereof is horizontal or substantially horizontal, so that the propelling body in the winding state is radially moved by its own weight. There is a drawback that it hangs outward and easily rubs the base and the ground during winding, so that the rotation resistance of the winding unit is increased and the rotation is not smoothly performed. Further, since the direction in which the propelling body hangs down and the rotation direction of the winding unit are both vertical and coincide with each other, after the propulsion of the propelling body is stopped, the winding unit However, there is a drawback in that it is pulled and rotated, resulting in poor safety. SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, enables a propelling body to be smoothly wound, and prevents a winding portion from rotating after stopping the propulsion of the propelling body. It is an object to provide a body winding drum.

[0004]

In order to achieve the above-mentioned object, a first characteristic configuration of a propelling body winding drum for a propulsion method according to the present invention is as follows. The second feature is that the winding portion is provided with a flange portion that is arranged vertically and receives and supports the propelling body in the winding state. Arranged so as to be vertical or almost vertical, a flange portion for receiving and supporting the propelled body in the wound state is provided on the winding portion, and the outer peripheral end of the flange portion is higher toward the outer peripheral side. An inclined surface protruding body slip-off preventing portion formed so as to be provided, and a rotary drive device is disposed inside the winding portion. The operation and effect are as follows.

[0005]

According to the first characteristic configuration of the propulsion body winding drum for the propulsion method according to the present invention, the winding portion is
Since the rotating shaft is arranged so as to be vertical or almost vertical, it is possible to prevent the propulsion body from sagging outward in the radial direction. In this case, the propelled body in the wound state tends to hang down in the axial direction of the winding section, but is received and supported by a flange provided in the winding section, and the shaft center is located above the flange. No longer hang in the direction. As a result, sliding contact of the propulsion body with the base or the ground during winding can be prevented, and the propulsion body can be smoothly wound. In addition, even if the propulsion body hangs between the flange and the base or the ground, in the above configuration, the direction in which the propulsion body hangs is vertical, whereas Since the propulsion body is horizontal, it is possible to prevent the propelling body from hanging and being rotated by its own weight after the propulsion of the propulsion body is stopped. Further, according to the second characteristic configuration of the propulsion body winding drum for the propulsion method according to the present invention, in addition to the above-described action, the outer peripheral end of the flange is formed so as to be higher toward the outer peripheral side. Since the formed inclined surface protruding body detachment preventing portion is provided, the support state of the propulsion body can be reliably maintained by the propelling body detaching preventing portion.
Furthermore, for example, when the winding unit is arranged so that the rotation axis is vertical or almost vertical, the diameter of the winding drum is generally large in the winding drum, and the size in the radial direction becomes the installation space as it is. However, since a rotary drive device must be installed in addition to the drum, there is a drawback that the installation space becomes too large.However, in the propulsion body winding drum for the propulsion method according to the present invention, the rotary drive device is used. Since it is arranged inside the take-up part, the installation space can be suppressed to substantially the radial size of the take-up drum.

[0006]

According to the first aspect of the propulsion body winding drum for the propulsion method according to the present invention, the propulsion body can be smoothly wound up, so that the workability is excellent, and the propulsion body has a good workability. After stopping the propulsion, it is possible to prevent the winding portion from being pulled and rotated by the propelling body that hangs down by its own weight, so that it is excellent in safety, and according to the second characteristic configuration, according to the first characteristic configuration, In addition to the effect, the installation space can be reduced to substantially the radial size of the take-up drum, so that a compact propulsion body take-up drum for a propulsion method with a small installation space can be provided.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 6, a propulsion unit 5 (an example of a propulsion body for a propulsion method) in which a plurality of propulsion tubes T having a fixed length are flexibly connected, and the propulsion unit 5 is connected to a first and a second construction. A propulsion unit delivery mechanism 7 is provided for sending the propulsion unit to the ground between the pits A and B, and the propulsion unit winding drum 6 (propulsion body winding for propulsion method) is mounted on the vehicle 30 outside the ground portion of the first construction pit A. An example of a drum) is provided, and the flexible pipe holding devices 2 are respectively installed outside the ground of the second construction pit B to constitute a flexible pipe burying device for a propulsion method.

A method of burying a flexible pipe by the above-mentioned flexible pipe burying apparatus for a propulsion method will be described. First, the propulsion unit 5 is propelled through the ground between the first and second construction pits A and B, and an underground hole is formed there. Is formed, and the winding corrugated pipe 1 of the flexible pipe holding device 2 is attached to the distal end of the propulsion unit 5 inserted into the underground hole.
1 (an example of a flexible pipe) is connected, and then the propulsion unit 5 is wound up by the propulsion unit winding drum 6, and the corrugated pipe 11 is dragged and embedded in the ground. FIG. 6 shows a state in which the corrugated pipe 11 is buried underground.

The present invention relates to the propulsion unit winding drum 6, and the structure of the propulsion unit winding drum 6 will be described in detail below.

As shown in FIGS. 1, 2, and 3, the propulsion unit winding drum 3 (an example of a rewinding section) includes a propulsion unit winding drum 6 as viewed in the direction of the rotation axis. It is formed in a pentagonal shape, and is disposed on the base 1 such that the rotation axis 25 is vertical or almost vertical. A plurality of reel supporting wheels 21 are provided on the lower edge of the reel 3 in the circumferential direction. An annular rail 20 for receiving the wheels 21 is provided on the base 1, and a stopper mechanism 19 is provided between the reel 3 and the base 1 so as to prevent relative rotation of the reel 3 with respect to the base 1. Drive device 4 for rotating the drive
Is provided inside the reel 3.

The base 1 is made of a channel member, and has a rotating shaft support 18 having a height approximately half the vertical width of the reel 3 (that is, the height of the reel 3), and a rotation driving device lower than that. The support base 17 is provided on a square frame 28, and casters 23 are provided on the bottom surface. The rail 20 has a rising wall 24 formed on the inner circumference over the entire circumference.

The structure of the reel 3 will be described in detail.
A pair of pentagonal frame bodies 8 are formed by angle members, and they are arranged concentrically around the rotation axis 25 to form a pair of pentagonal frame bodies 8.
The two shafts 8 and the rotary shaft 25 are integrally connected to each other by an angle member or a channel member, and the propulsion body receiving plate 9 is disposed between the outer peripheral portions of the pair of frame members 8 in a radially outward direction. A flange portion 10 is attached in a slightly inflated state and receives and supports the winding propulsion unit 5 in a spiral shape along the axis. Then, the propulsion unit 5 wound on the reel 3 can be supported for each winding.
The pitch of the flange 10 is set to be slightly larger than the diameter of the propulsion unit 5, and further, the outer periphery of the flange 10 is attached to the outer periphery thereof so that the support state of the propulsion unit 5 can be reliably maintained. An inclined surface propulsion body detachment preventing portion 26 formed so as to be higher toward the side is provided. The above 5
The length of each side of the square is set to be approximately three times the connection pitch P of the propulsion pipes T.

The rotating shaft 25 has a length substantially half of the vertical width of the reel 3 and is provided from the upper side of the reel 3. The rotating shaft 25 is mounted on the rotating shaft support 18. It is mounted so that the core is vertical and rotatably attached. In this mounted state, the length of the rotating shaft 25 is set so that most of the load on the reel 3 can be supported by the wheels 21. At the lower edge of the reel 3, a plurality of bearings C are provided in contact with the outer peripheral portion of the rising wall 24 in the circumferential direction.

To constitute the stopper mechanism 19, as shown in FIGS. 4 and 5, a bolt 16 as a stopper is disposed on the reel 3 side, and a tip of the bolt 16 is provided at a peripheral portion around the axis of the rail 20. A plurality of notches 15 for engaging the portions are provided at equal intervals in the circumferential direction, and bolts 16 are provided on the lower edge of the reel 3 so that the bolts 16 can be engaged and disengaged from the notches 15. The mounting state of the bolt 16 will be described. A bracket 27 having a concentric bolt insertion hole 27A and a female screw portion 27B is attached to the lower end edge of the reel 3 so that the bolt insertion hole 27A and the like face the notch 15. And the bolt 16 is screwed into the female screw portion 27B so as to be able to move back and forth.
Can be engaged and disengaged from the notch 15.
The hexagonal bolt 16 is rotated by a ratchet lever R. The bracket 27 is provided with a ball plunger 31 for ensuring the engagement of the bolt 16 with the notch 15.

To constitute the rotary drive 4, the drive sprocket S1 and the driven sprocket S2 are externally fitted and fixed to the motor M mounted on the rotary drive support 17 and the driven sprocket S2, respectively. And a tension sprocket D for applying tension to the chain 12 is provided. In addition, on the upper surface side of the reel 3, a hose winding device 13 for winding an electric wire, a hydraulic hose, or the like H extending from the propulsion unit 5 is provided. The hose winding device 13 is driven to rotate by the motor M.

The propulsion pipe T has two types of first and second propulsion pipes T1 and T2 having the same length but different structures.
2 in the propulsion unit 5 and two second
One first propulsion tube T1 is arranged between the propulsion tubes T2, and they are connected to each other to form one unit, and a number of the units are connected.

According to the configuration of the propulsion unit winding drum 6, the length of each side of the pentagonal frame 8 is set to be approximately three times the connection pitch P of the propulsion pipes T. When the propulsion unit 5 is wound by the propulsion unit winding drum 6, the respective corners 14 of the reel 3
In this case, the connecting portion between the propulsion tubes T can be always positioned, and the propulsion unit 5 is bent along the corner portion 14 to form along the outer peripheral portion of the reel 3.

[Another Embodiment] The reel 3 may be formed in a circular shape when viewed in the direction of the axis of rotation.

As shown in FIG. 7, the hose winding device 13 may be provided on the lower surface side of the reel 3.

Further, as shown in the figure, the rotation drive device 4 may be arranged outside the reel 3.

Incidentally, in the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of a drum for winding a propulsion unit.

FIG. 2 is a partially cutaway explanatory view of a propulsion unit winding drum.

FIG. 3 is a front view of a propulsion unit winding drum.

FIG. 4 is a sectional view of a stopper mechanism.

FIG. 5 is a bottom view of the stopper mechanism.

FIG. 6 is an overall view of a flexible pipe burying device.

FIG. 7 is a front view of another embodiment.

[Description of Signs] 3 Rewinding part 4 Rotary drive device 5 Propulsion body for propulsion method 10 Flange part 25 Rotation shaft 26 Propulsion body detachment prevention part T Propulsion pipe

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazunori Tsujimoto 1-1-1, Hama, Amagasaki-shi, Hyogo Prefecture Inside Kubota Technology Development Laboratory Co., Ltd. (72) Kokichi Yamada 1-1-1, Hama, Amagasaki-shi, Hyogo (56) References JP-A-5-287990 (JP, A)

Claims (2)

(57) [Scope of request for utility model registration] 1. A propulsion body winding device for a propulsion method, comprising a winding portion (3) for winding a propulsion method propulsion body (5) formed by connecting a number of propulsion tubes (T) so as to be freely bent. A drum, wherein the winding portion (3) is disposed such that a rotation axis (25) thereof is vertical or substantially vertical, and a flange portion (20) for receiving and supporting the propelled body (5) in a wound state. 10) A propelling body winding drum for a propulsion method provided in the winding section (3). 2. A winding portion (3) for winding a propulsion method propulsion body (5) formed by connecting a large number of propulsion tubes (T) so as to be freely bent, and the winding portion (3) is provided. A propulsion body winding drum for a propulsion method provided with a rotation driving device (4) for rotationally driving, wherein the winding portion (3) is arranged such that a rotation axis (25) thereof is vertical or almost vertical. A flange (10) for receiving and supporting the propelled body (5) in the wound state is provided on the winding part (3), and an outer peripheral end of the flange (10) is provided on the outer periphery thereof. A propulsion method in which a slope-shaped propulsion body detaching prevention portion (26) formed so as to be higher toward the side is provided, and the rotary driving device (4) is disposed inside the winding portion (3). Propeller winding drum.