Capstan Cover

Abstract

To provide a capstan cover capable of preventing clothing of an operator from entangling in the gap between a capstan and a wire rope when performing operation works and capable of improving working safety.SOLUTION: The configuration of a capstan cover 100 according to the present invention is the capstan cover 100 enclosing an outer peripheral surface 14a of a rotary-type capstan 14 installed in sideways and comprising a circular disc 110 along the edge surface of the capstan 14, a supporting shaft 120 to support the circular disc 110, and multiple shafts 130 extending along the outer peripheral surface 14a of the capstan 14 arranged near an outer edge 110a of the circular disc 110.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a capstan cover that surrounds the outer peripheral surface of a rotary capstan installed horizontally.

Background Art

[0002] A capstan winch is known as a cylindrical device for winding or feeding out a wire rope to be attached to a winch or the like. For example, in Patent Document 1, a tail take-up device of a capstan winch including "a holding roller shaft-mounted on a machine base, a capstan drum (capstan) around which a rope is wound, and a pinch roller for pressing the tail side of the rope wound around the capstan drum against the holding roller" is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, the outer peripheral surface of a capstan is exposed. Therefore, when performing operations such as winding or feeding out a wire rope, there is a risk that a worker's hand or clothing (hereinafter referred to as clothing, etc.) may be caught in the gap between the capstan and the wire rope. Development of a structure for preventing such a catching accident has been demanded.

[0005] In view of such problems, an object of the present invention is to provide a capstan cover that can prevent the worker's clothing or the like from being caught in the gap between the capstan and the wire rope during operation and can improve the safety of the operation.

Means for Solving the Problems

[0006] In order to solve the above problems, a typical configuration of the capstan cover according to the present invention is a capstan cover that surrounds the outer peripheral surface of a rotary capstan installed horizontally, and includes a disk along the end surface of the capstan, a support shaft that supports the disk, and a plurality of shafts arranged near the outer edge of the disk and extending along the outer peripheral surface of the capstan.

[0007] According to the above configuration, a plurality of shafts extending along the outer peripheral surface of the capstan function as a fence. Therefore, it is possible to prevent the worker's clothes or the like from being caught in the gap between the capstan and the wire rope, and it is possible to improve the safety of the work. In addition, since the plurality of shafts are supported by the support shaft via the disk, the plurality of shafts can be arranged in a stable state with respect to the capstan. In addition, since the plurality of shafts function as a fence, it is possible to visually confirm the winding state and the operating state of the wire rope from the gap between the shafts.

[0008] It is preferable that the plurality of shafts can be selectively inserted and removed. According to such a configuration, a wire cable can be passed through the region where the shaft is selectively removed. Thereby, it becomes possible to smoothly wind up and feed out the wire cable.

[0009] It is preferable that a plurality of grooves are formed in the shaft and a ball plunger that engages with the groove is provided on the disk. According to such a configuration, by changing the engagement position between the groove of the shaft and the ball plunger, the length of the shaft with respect to the outer peripheral surface of the capstan can be adjusted. Therefore, the capstan cover of the present invention can be applied to capstans of various sizes.

[0010] The capstan cover is of a stand type and preferably includes a stand that supports the support shaft. Thereby, the posture at the time of installing the capstan cover can be stabilized.

[0011] It is preferable that the capstan cover is of a magnetic type and includes a magnetic base to which a support shaft is attached, and a magnet fixed to the magnetic base and adsorbed to the end face of the capstan. This can also stabilize the posture of the capstan cover during installation.

[0012] It is preferable that a rotation-stopping weight is attached below the disc. Thereby, the rotation of the disc can be suppressed, the rotation of the disc caused by the rotation of the capstan can be prevented, and the handling of the wire cable can be performed well.

[0013] It is preferable that a roller that abuts against the flange or the end face of the capstan is provided above the disc. Thereby, the inclination of the disc with respect to the capstan and thus the shaft supported thereby can be prevented. Therefore, it is possible to suitably prevent the contact between the shaft and the outer peripheral surface of the capstan.

Advantages of the Invention

[0014] According to the present invention, it is possible to provide a capstan cover that can prevent the worker's clothing or the like from being caught in the gap between the capstan and the wire rope during the operation work, and can improve the safety of the work.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Best Mode for Carrying Out the Invention

[0016] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in such embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In this specification and the drawings, elements having substantially the same function and configuration are denoted by the same reference numerals to omit redundant description, and elements not directly related to the present invention are not shown.

[0017] (First Embodiment) FIG. 1 is a diagram for explaining a crawler winch 10 and a capstan cover 100 of the first embodiment. FIG. 1(a) is a perspective view illustrating a state before the capstan cover 100 of the first embodiment is attached to the crawler winch 10. FIG. 1(b) is a perspective view illustrating a state after the capstan cover 100 of the first embodiment is attached to the crawler winch 10.

[0018] As shown in FIGS. 1(a) and (b), the crawler winch 10 has crawlers 12 that travel on the ground. Above the crawlers 12 and on the front side in the traveling direction of the crawler winch 10, a rotary capstan 14 for winding and feeding out a wire rope (not shown) is arranged. The capstan 14 is arranged such that the rotation axis 10a shown in FIG. 1(a) is horizontal. The capstan cover 100 of the first embodiment is attached to the capstan 14 so as to surround the cylindrical outer peripheral surface 14a of the capstan 14 as shown in FIG. 1(b).

[0019] FIGS. 2 and 3 are overall perspective views of the capstan cover 100 according to the first embodiment. FIG. 2 illustrates a state in which the capstan cover 100 is observed from the side opposite to the capstan 14 (outside), and FIG. 3 illustrates a state in which the capstan cover 100 is observed from the capstan 14 side (inside).

[0020] As shown in FIGS. 2 and 3, the capstan cover 100 of the first embodiment includes a disk 110, a support shaft 120, and a plurality of shafts 130. The disk 110 is arranged along the end face 14b (see FIG. 1(b)) of the capstan 14 and is supported by the support shaft 120 near the center. The plurality of shafts 130 are arranged circumferentially in the vicinity of the outer edge 110a of the disk 110 and are arranged so as to extend along the outer peripheral surface 14a of the capstan 14. Thereby, the plurality of shafts 130 are supported by the support shaft 120 via the disk 110.

[0021] According to the above configuration, the plurality of shafts 130 function as a fence against the outer peripheral surface 14a of the capstan 14. As a result, the outer peripheral surface 14a of the capstan 14 is blocked by the plurality of shafts 130, so that it is possible to prevent the worker's clothes or the like from being caught in the gap between the capstan 14 and the wire rope (not shown), and to improve the safety of the work.

[0022] In particular, the capstan cover 100 of the first embodiment is of a stand type. Specifically, the capstan cover 100 of the first embodiment includes a stand 140 that supports the support shaft 120. The stand 140 includes a pole 142 to which the support shaft 120 is connected and a base 144 to which the lower end of the pole 142 is connected. According to such a configuration, the capstan cover 100 is installed on the ground via the stand 140. Thereby, it becomes possible to install the capstan cover 100 in a stable posture with respect to the capstan 14.

[0023] Also, in the capstan cover 100 of the present embodiment, as shown in FIG. 3, the plurality of shafts 130 can be selectively inserted and removed (FIG. 3 illustrates a state in which one shaft 130 is removed). Thereby, by passing the wire cable through the region where the shaft 130 is removed, it becomes possible to smoothly wind up and feed out the wire cable. Depending on the diameter of the wire cable, it may be configured to insert the wire cable into the gap between the plurality of shafts 130 without removing the shaft 130.

[0024] Furthermore, in the capstan cover 100 of the present embodiment, as shown in FIGS. 2 and 3, a plurality of grooves 132 are formed in the shaft 130. On the other hand, the disc 110 is provided with a ball plunger 112 (see FIG. 2) that engages with the groove 132. Thus, by changing the engagement position between the groove 132 of the shaft 130 and the ball plunger 112, the length of the shaft 130 with respect to the outer peripheral surface 14a of the capstan 14 can be adjusted. Therefore, the capstan cover 100 can be applied to capstans 14 of various sizes.

[0025] Also, in the capstan cover 100 of the present embodiment, a rotation-preventing weight 150 (see FIG. 2) is attached below the disc 110. Thereby, rotation of the disc 110 can be suppressed. Therefore, rotation of the disc 110 caused by rotation of the capstan 14 can be prevented, and the wire cable can be routed well.

[0026] Furthermore, in the capstan cover 100 of the present embodiment, a roller 160 (see FIG. 3) that abuts against the flange 14c or the end face 14b of the capstan 14 (see FIGS. 1(a) and (b)) is attached above the disc 110. Thereby, tilting of the disc 110 with respect to the capstan 14 and thus the shaft 130 supported thereby can be prevented. Therefore, contact between the shaft 130 and the wire cable can be suitably prevented.

[0027] (Second Embodiment) FIG. 4 is a diagram for explaining the crawler winch 10 and the capstan cover 200 of the second embodiment. FIG. 4(a) is a perspective view illustrating a state before attaching the capstan cover 200 of the second embodiment to the crawler winch 10. FIG. 4(b) is a perspective view illustrating a state after attaching the capstan cover 200 of the second embodiment to the crawler winch 10.

[0028] FIG. 5 is an overall perspective view of the capstan cover 200 according to the second embodiment. FIG. 5(a) illustrates a state in which the capstan cover 200 is observed from the side opposite to the capstan 14 (outer side), and FIG. 5(b) illustrates a state in which the capstan cover 200 is observed from the capstan 14 side (inner side). Note that, for the components common to the capstan cover 100 of the first embodiment described above, the description thereof is omitted by attaching the same reference numerals.

[0029] The capstan cover 100 of the first embodiment was a stand type. In contrast, the capstan cover 200 of the second embodiment shown in FIGS. 4 and 5 is a magnet type. Specifically, the capstan cover 200 of the second embodiment includes a magnet base 242 and a magnet 244. The support shaft 120 is attached to the magnet base 242, and the magnet 244 is fixed to the magnet base 242 and attracts to the end face 14b of the capstan 14.

[0030] In the capstan cover 200 of the second embodiment, for example, as shown in FIG. 4(a), the magnet 244 is attracted to the end face 14b of the capstan 14, so that the support shaft 120 is held by the capstan 14 via the magnet base 242. Then, as shown in FIG. 4(b), the support shaft 120 is fixed to the disk 110, and the disk 110 and the plurality of shafts 130 arranged thereon are attached to the capstan 14.

[0031] When the capstan 14 rotates, the magnet base 242 and the support shaft 120 also rotate. A bearing is provided between the support shaft 120 and the disk 110, and the support shaft 120 rotates freely with respect to the disk 110. Since a rotation-stopping weight 150 is provided below the disk 110, the disk 110 and the shaft 130 do not rotate even when the support shaft 120 rotates, and the function as a fence can be maintained.

[0032] Also with the capstan cover 200 of the second embodiment, since the outer peripheral surface 14a of the capstan 14 is blocked by the shaft 130, the same effects as those of the capstan cover 100 of the first embodiment can be obtained. In particular, with the capstan cover 200 of the second embodiment, even when the ground is uneven or in a poor condition, the capstan cover 200 can be installed in a stable posture with respect to the capstan 14.

[0033] As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings. Needless to say, the present invention is not limited to such examples. It is obvious that those skilled in the art can conceive of various modification examples or correction examples within the scope described in the claims, and it is naturally understood that they also belong to the technical scope of the present invention.

Industrial Applicability

[0034] The present invention can be used as a capstan cover that surrounds the outer peripheral surface of a rotary capstan installed horizontally.

Explanation of Reference Numerals

[0035] 10… Crawler winch, 10a… Rotation shaft, 12… Crawler, 14… Capstan, 14a… Outer peripheral surface, 14b… End face, 14c… Flange, 100… Capstan cover, 110… Disk, 110a… Outer edge, 112… Ball plunger, 120… Support shaft, 130… Shaft, 132… Groove, 140… Stand, 142… Pole, 144… Base, 150… Weight, 160… Roller, 200… Capstan cover, 242… Magnet base, 244… Magnet

Claims

1. A capstan cover that surrounds the outer peripheral surface of a rotary capstan installed horizontally, a disk along the end face of the capstan, a support shaft that supports the disk, and a plurality of shafts arranged near the outer edge of the disk and extending along the outer peripheral surface of the capstan, characterized in that the plurality of shafts are selectively insertable and removable. A capstan cover.

2. A plurality of grooves are formed in the shaft, and the disk is provided with a ball plunger that engages with the groove. The capstan cover according to claim 1.

3. The capstan cover is of a stand type, and is provided with a stand that supports the support shaft. The capstan cover according to claim 1 or claim 2.

4. The capstan cover is of a magnet type, a magnet base to which the support shaft is attached, and a magnet fixed to the magnet base and attracted to the end face of the capstan, characterized in that it comprises. The capstan cover according to claim 1 or claim 2.

5. A weight for preventing rotation is attached below the disk. The capstan cover according to any one of claims 1 to 4.

6. A roller that abuts against the flange or end face of the capstan is provided above the disk. The capstan cover according to any one of claims 1 to 5.

Images