JP2015168580A - Endless winch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an endless winch that is easy of maintenance work and rope winding operation, and excellent in safety.SOLUTION: An endless winch comprises a winch body 2 in which a drive shaft 3 is rotatably pivoted, and a winding drum 5 attached to the drive shaft 3, in which a groove 4 for winding a rope is formed at the outer peripheral edge. At the outer periphery of the winding drum 5, a movable roller body 7, in which both end sides are connected to an elastic body 8 along the groove 4 except for the portions where the rope is taken in or taken out to the groove 4 side, is provided. A part or all of the movable roller body 7 is configured to be freely detachable and rotatable.

Description

Detailed Description of the Invention

The present invention relates to a winch, and more particularly, to an endless winch installed at an intermediate portion of a rope without the end of the rope being fixed to the winch.

Conventionally, an endless winch includes a rectangular winch body, a drive shaft rotatably supported on the winch body, a winding drum attached to the drive shaft and rotating as the drive shaft rotates, A groove formed along the outer peripheral edge of the winding drum and wound around the rope; and a moving roller body provided to press the rope along the groove except for a portion where the rope is taken into and taken out from the groove; The rope is composed of a pair of guide sheaves that are pivotally supported on the winch body so as to take in and move the rope to the groove side and to take out and move the rope from the groove.

The endless winch is generally used for opening / closing movement of a ball-proof net in a ball game / golf driving range, moving up / down, opening / closing movement of a large tent, or lifting / lowering work gondola.

The rope wound around the groove of the winding drum is different in the load applied to the rope (the load of the ballproof net, etc.) on the side taking in the winch body and the side taking out from the winch body, and one of them is strongly pulled. The other will relax.

For this reason, the moving roller body of the endless winch is normally separated from the guide roller and the moving roller body (Japanese Patent Laid-Open No. 2000-351580, Patent Document 1) in which both ends are connected to the elastic body. It is pressed by a body pressing member (Japanese Patent Laid-Open No. 2013-221926, Patent Document 2), and the rope moves smoothly while eliminating the loosened portion of the rope.

Problems to be solved by the invention

However, the endless type winch usually takes the end of the rope from the guide sheave on one side into the groove of the winding drum, winds the rope along the groove while rotating the winding drum, and the guide sheave on the other side. In order to attach the rope to the winch by pulling out the rope, remove the rope from the ball-proof net at the time of maintenance work, etc., pull out the rope from the groove of the winding drum, and wind the rope again after the work After winding in the groove of the drum, it had to be connected to the net, and there was a drawback that the work was complicated.

In addition, the moving roller body has a different amount of wear on the strong pulling side and the loose side of the rope, and the rope is frequently replaced. However, it is difficult to remove the rope from the endless winch. There was a drawback that it took time.

Further, there is a drawback that the rope cannot be smoothly moved to the groove side when the end of the moving roller body is strongly pressed.

Accordingly, the present invention solves the above-described problems, and provides an endless winch that can smoothly take out and incorporate a rope into a groove of a winding drum, is easy to perform maintenance work, and is excellent in safety. It is an object to do.

Means for solving the problem

As described in claim 1, an endless winch as a means for solving the problems described above is a winch body on which a drive shaft is rotatably supported, and an outer peripheral edge attached to the drive shaft. In an endless winch composed of a winding drum in which a rope is wound along the rope, the outer periphery of the winding drum has a groove on the outer side of the rope except for the portion taken into and out of the rope groove. A moving roller body having both ends connected to an elastic body is provided along the, and a part or the whole of the moving roller body is configured to be detachable.

In addition, an endless winch as another means for solving the above-mentioned problems is provided, as described in claim 2, with a winch body on which a drive shaft is rotatably supported, and attached to the drive shaft. In an endless winch composed of a winding drum in which a groove is wound around the periphery of the winding drum, the outer periphery of the winding drum is excluded from the rope groove side and the take-out portion A moving roller body having both ends connected to an elastic body along the groove is provided, and a part or the whole of the moving roller body is configured to be rotatable.

Effects of the invention

The effects of the endless winch of the present invention will be described.

First, the endless type winch according to claim 1 is provided with an endless type winch, a part or the whole of the moving roller body provided in the winch body is removed from the winch body, and the groove of the winding drum is formed. Open the outer periphery.

In this state, the endless rope is wound around the groove of the winding drum to attach the rope, and then the movable roller body is attached again along the groove to press the rope toward the groove. be able to.

As a result, the rope can be smoothly moved by the endless winch.

When the rope is removed from the endless winch, the moving roller body is similarly removed from the winch body, the pressure on the rope groove is released, and the rope is removed from the groove on the winding drum.

Then, after the work is completed, the moving roller body is attached to the winch body again.
Therefore, maintenance work of the endless winch can be easily performed.

Moreover, the pressing to the groove side of a rope by a moving roller body can also be performed appropriately.

Next, the endless winch according to claim 2 is wound by rotating a part or the whole of the moving roller body provided in the winch body in a direction away from the winding drum with respect to the winch body. Open a gap in the drum groove.

In this state, the rope can be wound along the groove of the winding drum, and the rope can be pressed toward the groove by rotating the moving roller body again toward the groove of the winding drum.

As a result, the rope can be smoothly wound around the groove of the winding drum.

Further, when removing the rope from the groove, similarly, a part or the whole of the moving roller body is rotated in a direction away from the groove of the winding drum to open the space between the grooves of the winding drum.

Thereafter, the rope is removed from the groove, the rope maintenance work or the like is performed, the rope is wound again along the groove, the moving roller body is rotated again to the groove side, and the rope is pressed to the groove side.

As described above, the endless winch of the present invention can be easily replaced and maintained in a state where the rope is attached, and can be easily installed with the endless winch installed. Exchange work etc. can be performed.

In addition, maintenance work and the like can be performed smoothly, and work efficiency can be significantly improved.

Next, the endless winch of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic plan view showing a first embodiment of a moving roller body used in an endless winch of the present invention, and FIG. 2 is a schematic plan view showing an endless winch in which the moving roller body of FIG. 1 is installed. FIG. 3 is a schematic explanatory plan view showing a second embodiment of the moving roller body, and FIG. 4 is a schematic explanatory plan view showing the opening and closing movement of FIG.

An endless winch 1 of the present invention is supported by a substantially rectangular winch main body 2 and a winch main body 2 so as to be rotatable, and directly or via a speed increasing / decreasing device or the like on a drive source (an electric motor or a manual handle). A drive shaft 3 coupled to the drive shaft 3 and a circular winding drum 5 attached to the drive shaft 3 and driven to rotate as the drive shaft 3 rotates, and having a substantially U-shaped groove 4 formed on the outer peripheral edge thereof. In the vicinity of the winding drum 5, a rope (in the present invention, described as a general term for a winch wire, a pulling rope and other ropes) is introduced into the groove 4 of the winch body 2 and taken out from the groove 4 to guide the winch. A pair of guide sheaves 6 (6A, 6B) rotatably supported on the main body 2 and the guide sheave 6 are attached along the groove except for the portion where the rope 20 is taken in and out, and both ends are elastic bodies. And a moving roller body 7 linked to.

The moving roller body 7 is formed by connecting a plurality of rollers 7A, and is attached to a substantially U-shaped plate body 9 in a state where tension is applied to both ends by an elastic body 8 such as a spring. The body 9 is configured to be detachably attached to the winch body 2 (a screw is attached to the winch body 2 or a slide movement is performed in the groove).

The plate body 9 is integrally formed. However, in the present invention, the shape of the plate body 9 is not limited to this, and for example, the plate body 9 may be divided into two parts. Only the winch body 2 may be detachable.

Furthermore, the shape of the plate body 9 is not limited to the substantially U-shape, and may be a rectangular shape, for example.

The endless winch 1 of the present invention is configured as described above, and a case where a rope is attached to the endless winch 1 will be described.

First, the moving roller body 7 is removed together with the plate body 9 from the winch body 2 of the installed endless winch 1.

As a result, the outer periphery of the groove 4 of the winding drum 5 is opened, the rope is taken in from one guide sheave 6A, wound along the groove 4 of the winding drum 5, and then from the other guide sheave 6B. It can be attached by taking it out.

Thereafter, by attaching the plate body 9 to the winch body 2 again, the moving roller body 7 can be wound along the groove 4 of the winding drum 5 and the wound rope can be pressed toward the groove 4 side.

Further, when the maintenance work is performed, the plate body 9 is separated from the winch main body 2, so that the work can be performed while the rope is easily separated from the groove 4.

Thus, by attaching and detaching the plate body 9 from the winch body 2, the moving roller body 7 can be separated from the groove 4 of the winding drum 5 and the rope can be easily wound and detached.

In addition, the rope can be freely attached and detached while the endless winch 1 is installed, and the working efficiency can be significantly improved.

Moreover, the structure is simple and does not require frequent maintenance work.

In the first embodiment, the plate body 9 is configured to be detachably attached to the winch body 2, but the mounting of the moving roller body 7 is not limited thereto, and the plate body 9 is attached to the winch body 2 so as to be rotatable. It is also possible.

In this case, the plate body 9 is pivotally supported on the winch body 2 so that the rotation portions R and L to which the elastic body 8 is attached rotate so that the rotation portions R and L are rotated. Is rotated in a direction away from the groove 4, and the rope is wound around the groove 4 of the winding drum 5, and then the plate body 9 is rotated again toward the groove 4 to wind the rope.

Accordingly, the rope can be easily attached in a state where the endless winch 1 is installed.

Further, the rotating portion of the plate body 9 is not limited to the case where the above-described two divided components are rotated. For example, the plate portion 9 may be configured to rotate only the end side of the moving roller body 7. Good.

In addition, the moving roller body 7 is attached between the elastic bodies 8. However, in the present invention, the configuration of the moving roller body 7 is not limited to this, and may be, for example, a configuration divided at the central portion.

Schematic explanatory plan view showing a first embodiment of a moving roller body of an endless winch of the present invention Schematic explanatory front view showing an endless winch using the moving roller body of FIG. Schematic explanatory plan view showing a second embodiment of the moving roller body of the present invention Schematic explanatory plan view showing opening and closing movement of the moving roller body of FIG. Schematic explanatory plan view showing opening and closing movement of the moving roller body of FIG.

1-endless winch, 2-winch body, 3-drive shaft, 5-winding drum, 7-moving roller body

Schematic explanatory plan view showing a first embodiment of a moving roller body used in an endless winch of the present invention Schematic explanatory plan view showing an endless winch equipped with the moving roller body of FIG. Schematic explanatory plan view showing a second embodiment of the moving roller body Schematic explanatory plan view showing opening and closing movement of FIG.

Claims (2)

In an endless winch comprising a winch body on which a drive shaft is rotatably supported, and a winding drum attached to the drive shaft and having a groove around which a rope is wound along an outer peripheral edge. On the outer periphery of the winding drum, there is provided a moving roller body in which both ends are connected to the elastic body along the groove except for the take-in and take-out portions of the rope, and a part of the move roller body, Alternatively, an endless winch characterized in that the whole is detachable. In an endless winch comprising a winch body on which a drive shaft is rotatably supported, and a winding drum attached to the drive shaft and having a groove around which a rope is wound along an outer peripheral edge. On the outer periphery of the winding drum, there is provided a moving roller body in which both ends are connected to the elastic body along the groove except for the take-in and take-out portions of the rope, and a part of the move roller body, Or the endless type winch characterized by the whole being comprised rotatably.

Images