Automatic direction changing pendulum type rotary drive ratchet for indirect live line

Abstract

The present invention relates to a rotary drive ratchet used in a wire tensioner or tensioner, and more particularly, to an automatic direction-changing pendulum type rotary drive ratchet for indirect live wire, which is configured to adjust the rotation of the pendulum drive shaft in the forward or reverse direction by the operation of an automatic reversing pole and a pendulum drive shaft operating plate due to the reciprocating motion of the pendulum without the operation of a direction-changing lever when winding or unwinding the wire tensioner or tensioner, thereby allowing the pendulum drive shaft to automatically rotate in the forward or reverse direction by operating a rotation lever using a stick for indirect live wire without a separate operation for changing the direction of rotation. In addition, the present invention relates to an automatic direction-changing pendulum type rotary drive ratchet for indirect live wire, which is configured to drive the pendulum drive shaft by a backstop ratchet ring operated by a multi-angle bundle pole, thereby preventing rotation in the reverse direction and, conversely, preventing a backlash phenomenon during the reverse rotation drive process, thereby enabling a solid rotation drive.

Description

[Technical field]

[0001] The present invention relates to a rotary drive ratchet used in a wire tensioner or tensioner, and more particularly to an automatic direction changing pendulum type rotary drive ratchet for indirect live wires that uses an indirect live wire stick without a separate operation for changing the direction of rotation, automatically adjusts the direction of rotation by operating a rotation lever, and prevents reverse rotation. [Background technology]

[0002] Generally, live-line work refers to work carried out on electric lines while electricity is being transmitted without interruption. Here, live-line work poses a high risk of safety accidents, so it is carried out in places where it is difficult to cut off the power, such as power transmission and distribution facilities, and workers who carry out live-line work must always use insulating protective gear or protective equipment.

[0003] Live-line work on power lines can be divided into direct live-line work and indirect live-line work. Indirect live-line work is a method of indirectly working using insulated tools such as hot sticks. While indirect live-line work is safe, it has the disadvantage of taking a long time to complete the work.

[0004] Direct live-line work is a method in which a worker puts on insulated gloves and works in an insulated bucket, then comes into direct contact with live electric wires. Direct live-line work is simple and saves work time, but has the disadvantage of being highly dangerous for electric shock and often resulting in loss of life. Live-line work includes inspecting, repairing, replacing, and cleaning electric line components such as support insulators, and either direct live-line work or indirect live-line work can be used appropriately depending on the type of work.

[0005] Meanwhile, tensioners are widely used in various live-line work. Such tensioners are tools used to pull or unwind electric wires to obtain a dip suitable for the work of stringing electric wires and adjusting the slack of electric wires during live-line work, and can be used by adjusting the forward and reverse rotation of a drum around which a rope or wire is wound, and the forward and reverse rotation of such a drum is made possible by a rotating tool such as a ratchet connected to the drum.

[0006] That is, as an example, a conventional rotating device 10, as shown in FIG. 1, is capable of adjusting the rotation of a ratchet wheel 12 to which a belt drum 11 is connected in the forward or reverse direction. A pair of ratchets 13, 13' for forward or reverse rotation of the ratchet wheel 12 is formed on both sides of the ratchet wheel 12, and the ratchets 13, 13' are connected to a direction-changing lever 15 connected via a link member 14. Depending on the direction-changing operation of the direction-changing lever 15, one of the ratchets 13, 13' engages with the ratchet wheel 12, thereby allowing the ratchet wheel 12 to rotate in the forward or reverse direction.

[0007] However, in the case of the rotation device attached to the conventional tensioner or tensioner, in order to adjust the rotation in the forward or reverse direction for winding or unwinding, a direction change lever must be operated to adjust the rotation in the forward or reverse direction, which is very inconvenient to operate and requires an operator to operate it in close proximity, which poses a problem of exposure to safety accidents. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Korean Utility Model Registration No. 20-0314862 [Patent Document 2] Korean Patent No. 10-2161405 Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been invented to solve the above-mentioned problems, and the object of the present invention is to provide an automatic direction changing pendulum type rotary drive ratchet for indirect live wires, which is configured so that the rotation of the pendulum drive shaft in the forward or reverse direction can be adjusted by the operation of the automatic reversing pole and the pendulum drive shaft operating plate due to the reciprocating motion of the pendulum without the operation of the direction changing lever when winding or unwinding a wire tensioner or tensioner, thereby allowing the pendulum drive shaft to be automatically rotated in the forward or reverse direction by operating the rotating lever while simply using the stick for indirect live wires without a separate operation for changing the rotation direction.

[0010] In addition, the pendulum drive shaft is configured to be driven by a backstop ratchet ring operated by a multi-angle bundle pole, thereby preventing reverse rotation and, conversely, preventing backlash during the reverse rotation drive process, thereby providing an automatic direction changing pendulum type rotary drive ratchet for indirect live line, which allows for reliable rotary drive. [Means for solving the problem]

[0011] As a specific means for achieving the above object, a body having a lever shaft mounting portion formed on one side thereof,

[0012] a rotary operating lever including a rotary operating shaft which is axially mounted on the lever shaft mounting portion and has a rotary knob; a cam formed at a position eccentric from the center at the tip of the rotary operating shaft; a rotary operating tool which is rotatably connected to the rotary operating shaft at the rear side of the cam, has a floating long hole formed in the circumferential direction and has a locking protrusion protruding from its periphery; and a buffer key which connects the rotary operating shaft and the rotary operating tool;

[0013] a pendulum drive shaft that is pivotally installed on the other side of the body and passes through the body in the forward and backward directions;

[0014] a clutch unit connected to the periphery of the pendulum drive shaft at the front side of the body, for preventing the inner ring from rotating in the reverse direction and for rotating the pendulum drive shaft in the forward or reverse direction by the simultaneous reverse rotation of the inner ring and the outer ring;

[0015] a pendulum drive shaft actuation plate connected to the periphery of the pendulum drive shaft at the front side of the clutch unit and having a sawtooth portion formed around a middle portion thereof;

[0016] a pendulum connected to the rear side of the pendulum drive shaft operating plate, protruding to one side and having a horizontal long hole for receiving the cam, which performs a reciprocating pendulum motion around the pendulum drive shaft by the operation of the cam, and an automatic reversing pole mounting groove formed on the front surface between the rotary operating shaft and the pendulum drive shaft operating plate;

[0017] a support plate that penetrates a front periphery of the pendulum drive shaft operating plate and is connected to the pendulum and protrudes to one side;

[0018] an automatic reversing pole having a pole shaft coupled to the automatic reversing pole mounting groove, interfering with the pendulum drive shaft working plate and rotating back and forth to apply a reversing rotation force in the forward or reverse direction to the pendulum drive shaft working plate;

[0019] a pole reversal key which is connected to the pole shaft together with the automatic reversal pole, protrudes from the support plate to one side, and when the rotation actuator rotates, interferes with a locking protrusion to provide a reciprocating force for the automatic reversal pole, and has a horizontal maintaining force provided by first and second reversal key spring balls whose circumferences are symmetrical with respect to the pole shaft;

[0020] a pendulum drive shaft rotating lever coupled to the pendulum drive shaft and the pendulum drive shaft operating plate in front of the pendulum drive shaft operating plate.

[0021] Here, the clutch portion is configured as a backstop ratchet ring,

[0022] The backstop ratchet ring is

[0023] a ring-shaped outer ring having an inner ring mounting hole at its center, an outer ring sawtooth portion having straight portions and inclined portions formed continuously in the circumferential direction on an inner peripheral surface of the inner ring mounting hole, and stopping grooves formed at regular intervals around the periphery;

[0024] an inner ring having a shaft hole through which the pendulum drive shaft is connected, the inner ring being fitted into the inner ring fitting hole of the outer ring, and having a number of bundle pole fitting grooves formed at regular intervals around the periphery;

[0025] a multi-angle bundle pole unit that is elastically installed in the bundle pole mounting groove via a spring and operates to advance and retreat and to apply a rotational force in one direction by engaging with the outer ring sawtooth portion of the outer ring;

[0026] a rotation prevention lever formed on the body, which controls rotation or stopping of the outer ring by interfering with or being released from a stopping groove of the outer ring;

[0027] The multi-angle bundle pole unit comprises:

[0028] a plurality of sets of first, second and third multi-angle bundle poles;

[0029] This can be achieved by configuring each of the first, second and third multi-angle bundle poles to sequentially mesh with the outer ring sawtooth portion of the outer ring at positions of different angles from each other. Effect of the Invention

[0030] As described above, the automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention can automatically rotate the pendulum drive shaft operating plate in the forward or reverse direction by simply adjusting the rotation direction of the rotary operating shaft using the stick for live line work, so that it is possible to easily obtain the effect of automatically performing the reversible rotation operation of the pendulum drive shaft in the forward or reverse direction during indirect live line work without a separate operation for changing the rotation direction.

[0031] In addition, the backstop ratchet ring prevents the pendulum drive shaft from rotating in the reverse direction and prevents backlash when the shaft is driven in the reverse direction, thereby ensuring the safety of the device by always allowing the device to rotate in both directions reversibly. [Brief description of the drawings]

[0032] [Figure 1] FIG. 1 is a schematic diagram showing a direction changing and rotating device of a conventional wire tensioner. [Diagram 2] FIG. 2 is a perspective view of an indirect hot line automatic direction changing pendulum type rotary drive ratchet according to the present invention; [Diagram 3] FIG. 2 is a cross-sectional plan view of an indirect live line automatic direction changing pendulum type rotary drive ratchet according to the present invention. [Figure 4] FIG. 2 is a front sectional view of the main part of the indirect live line automatic direction changing pendulum type rotary drive ratchet according to the present invention. [Diagram 5] FIG. 2 is a diagram showing an embodiment of a clutch part of an automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 6] FIG. 2 is a diagram showing an embodiment of a clutch part of an automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 7] FIG. 2 is a diagram showing an embodiment of a clutch part of an automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 8] FIG. 2 is a diagram showing an embodiment of a clutch part of an automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 9] FIG. 2 is a diagram showing an embodiment of a clutch part of an automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 10] FIG. 2 is a diagram showing the main parts of the pendulum, automatic reversing pole, and pole reversing key of the indirect live line automatic direction changing pendulum type rotary drive ratchet according to the present invention. [Figure 11] FIG. 2 is a diagram showing the use state of the automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 12] FIG. 2 is a diagram showing the use state of the automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention. [Figure 13] FIG. 2 is a diagram showing the positive operation state of the automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention; [Figure 14] FIG. 2 is a diagram showing the positive operation state of the backstop ratchet ring of the indirect live line automatic direction changing pendulum type rotary drive ratchet according to the present invention; [Figure 15] FIG. 2 is a reverse operation state diagram of the automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention; [Figure 16] FIG. 2 is a reverse operation state diagram of the backstop ratchet ring of the indirect live line automatic direction changing pendulum type rotary drive ratchet according to the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] The terms and words used in this specification and claims should not be interpreted in a limited manner to their ordinary or dictionary meanings, but should be interpreted in a manner that is consistent with the technical idea of ​​the present invention, based on the principle that an inventor can appropriately define the concept of a term in order to best describe his or her invention.

[0034] Therefore, it should be understood that the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiment of the present invention and do not fully represent the technical ideas of the present invention, and that there may be various equivalents and modifications that can replace them at the time of this application.

[0035] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0036] FIG. 2 is a perspective view of an automatic direction changing pendulum type rotary drive ratchet for indirect live lines according to the present invention, FIG. 3 is a plan sectional view of the automatic direction changing pendulum type rotary drive ratchet for indirect live lines according to the present invention, and FIG. 4 is a front sectional view of a main part of the automatic direction changing pendulum type rotary drive ratchet for indirect live lines according to the present invention.

[0037] As shown in Figs. 2 to 4, the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention includes a body 100, a rotary actuation lever 200, a pendulum drive shaft 300, a clutch unit 400, a pendulum drive shaft actuation plate 500, a pendulum 600, a support plate 700, an automatic reversal pole 800, a pole reversal key 900, and a pendulum drive shaft rotary lever 1000.

[0038] First, the body 100 is configured to form the base of the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention, and is configured to have a vertical plate shape, and one side (left side in the drawing) is configured with a hollow lever shaft installation part 110.

[0039] The rotation actuating lever 200 is configured to apply an actuating force for rotating a pendulum drive shaft 300 in the forward or reverse direction, which will be described later, in the configuration of the indirect live line automatic direction changing pendulum type rotation drive ratchet 1 according to the present invention.

[0040] For this purpose, the rotary operating lever 200 is first composed of a rotary operating shaft 210 that is horizontally axially mounted on the lever shaft mounting portion 110, and the tip of the rotary operating shaft 210 is located inside the lever shaft mounting portion 110, and the rear end protrudes outside the lever shaft mounting portion 110 to form a rotary knob 211.

[0041] Further, the rotation actuation lever 200 has a cam 220 at the tip of the rotation actuation shaft 210, which is offset from the center to one side.

[0042] In addition, the rotation actuation lever 200 has a rotation actuation member 230 formed around the rotation actuation shaft 210 on the rear side of the cam 220, and the rotation actuation member 230 is configured to be slidably coupled to the rotation actuation shaft 210.

[0043] A floating elongated hole 231 is formed on one side of the circumference of the rotation actuator 230 so as to form an angle of approximately 110° in the circumferential direction, and a locking projection 232 is provided on the other side.

[0044] In addition, the rotation actuation lever 200 is provided with a buffer key 240 for applying a connecting force between the rotation actuation shaft 210 and the rotation actuation tool 230. Here, one side of the buffer key 240 is fixed to the rotation actuation shaft 210, and the other side is configured to be positioned inside the free-floating elongated hole 231 of the rotation actuation tool 230.

[0045] Therefore, when the rotary actuating shaft 210 is rotated in the forward or reverse direction, the buffer key 240 rotates freely within the floating long hole 231 for a certain period of time, and when it engages with one end of the floating long hole 231, it rotates the rotary actuating tool 230 together. In this process, it is possible to prevent an impact overload on the pendulum drive shaft actuating plate 500, which will be described later, due to sudden rotation.

[0046] The pendulum drive shaft 300 is configured to have a rotational force in a substantially forward or reverse direction in the configuration of the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention, and is configured to penetrate the body 100 from the other side in the front and rear directions.

[0047] Meanwhile, in the present invention, the pendulum driving shaft 300 can be constructed in various shapes protruding from the rear of the body 100, and can be used by connecting it to a general tensioner or tensioner.

[0048] The clutch unit 400 is configured to operate the forward or reverse rotation of the pendulum driving shaft 300 in the configuration of the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention, and is configured so that the pendulum driving shaft 300 penetrates and is coupled to the body 100 from the front.

[0049] Meanwhile, in the present invention, the clutch unit 400 is not limited to this, and may be configured as a cam clutch in which a cam is formed between a normal inner ring and an outer ring, so that only the inner ring can rotate when the inner ring rotates in the forward direction, and the inner ring and the outer ring can rotate simultaneously when the inner ring rotates in the reverse direction.

[0050] 5 to 9, the clutch portion 400 can be configured with a backstop ratchet ring 401. In the present invention, the backstop ratchet ring 401 includes an outer ring 410, an inner ring 420, a multi-angle bundle pole unit 430, and a rotation prevention lever 440.

[0051] First, the outer ring 410 is configured to output power to the outside in the configuration of the backstop ratchet ring 401, and is configured to form a circle with an inner ring mounting hole 411 through which the inner ring 420 described later is mounted in the center.

[0052] Here, in the present invention, the outer ring 410 is configured with an outer ring sawtooth portion 412 on the inner peripheral surface of the inner ring mounting hole 411, and the outer ring sawtooth portion 412 is configured so that straight portions and inclined portions are continuously formed.

[0053] Meanwhile, in the present invention, as described above, the straight portion constituting the outer ring sawtooth portion 412 is configured to be locked during power transmission, and the inclined portion is configured to guide the slippage during idling.

[0054] In the present invention, a number of stopping grooves 413 are formed at regular intervals on the outer periphery of the outer ring 410 so that a rotation preventing lever 440, which will be described later, can be locked or unlocked.

[0055] The inner ring 420 is configured in the configuration of the backstop ratchet ring 401 so as to substantially transmit the main power, and is configured to transmit or release the main power to the outer ring 410 by interfering with or releasing the outer ring 410.

[0056] For this purpose, in the present invention, the inner ring 420 is configured to have a ring shape with a shaft hole 421 through which the pendulum driving shaft 300 for transmitting rotational power is connected to the center, and is configured to be inserted into the inner ring mounting hole 411 of the outer ring 410.

[0057] Also, on the outer periphery of the inner ring 420, a number of bundle pole mounting grooves 422 are formed at regular intervals in the circumferential direction so that first, second and third multi-angle bundle poles 431, 432 and 433, which will be described later, can be mounted.

[0058] Meanwhile, in the present invention, the outer ring 410 and the inner ring 420 are configured to be tightly coupled and to perform a stable sliding operation when coupled to each other.

[0059] For this purpose, first, the outer ring sawtooth portion 412 of the outer ring 410 is configured to protrude a predetermined length inwardly of the inner ring mounting hole 411, and front and rear steps 412a, 412b are formed in the front and rear of the outer ring sawtooth portion 412.

[0060] First, a mounting protrusion 423 is protruded from the rear periphery of the inner ring 420, and is attached to the rear step portion 412b of the outer ring 410 and slidably guided, and a finishing plate support portion 424 is protruded from the front so as to extend from the axial hole 421.

[0061] First, the front of the inner ring 420 is configured to be finished with a finishing plate 425, and the finishing plate 425 is attached to the front step portion 412a of the outer ring 410 at its periphery and fastened to the inner ring 420 with bolts to restrain the outer ring sawtooth portion 412, and a through hole 425a is provided in the center through which the finishing plate support portion 424 of the inner ring 420 passes.

[0062] The multi-angle bundle pole unit 430 acts as a medium for transmitting or releasing the power of the inner ring 420 to the outer ring 410 by interacting with the outer ring sawtooth portion 412 of the outer ring 410 in the configuration of the backstop ratchet ring 401. In the present invention, the multi-angle bundle pole unit 430 is composed of a plurality of sets of first, second and third multi-angle bundle poles 431, 432, 433.

[0063] For this purpose, the first, second and third multi-angle bundle poles 431, 432, 433 are elastically mounted in the bundle pole mounting grooves 422 via springs S and configured to protrude and retract from the outer periphery, and are configured to mesh with the outer ring sawtooth portion 412 of the outer ring 410 to apply a rotational force in one direction.

[0064] Here, in the present invention, the first, second and third multi-angle bundle poles 431, 432, 433 are configured to form a set of three, and each set may be radially arranged, i.e., composed of first, second and third meshing tools 431a, 432a, 432a, each set consisting of four pieces spaced at 90° intervals.

[0065] In the present invention, the first, second and third meshing tools 431a, 432a, 432a corresponding to each set are elastically mounted in the bundle pole mounting groove 422 via a spring S and configured to have a protruding force, and the tips of the first, second and third meshing tools 431a, 432a, 432a are each configured with meshing tool sawtooth portions 431b, 432b, 432b having straight portions and inclined portions so as to mesh with the outer ring sawtooth portion 412 of the outer ring 410.

[0066] In particular, in the present invention, the first, second and third meshing tools 431a, 432a, 432a corresponding to the first, second and third multi-angle bundle poles 431, 432, 433 of each set are configured to intersect with each other when mounted in the bundle pole mounting groove 422, i.e., the first meshing tool 431a of the first multi-angle bundle pole 431, the second meshing tool 432a of the second multi-angle bundle pole 432, and the third meshing tool 433a of the third multi-angle bundle pole 433 are continuously repeated in one rotational direction, so that the meshing tool sawtooth portions 431b, 432b, 432b sequentially mesh with the outer ring sawtooth portion 412 at positions of different angles.

[0067] That is, in the present invention, the meshing tool sawtooth portion 431b, 432b, 432b of any one of the first, second and third meshing tools 431a, 432a, 432a of the first, second and third multi-angle bundle poles 431, 432, 433 meshes with the outer ring sawtooth portion 412 of the outer ring 410. As an example, when the straight portion of the meshing tool sawtooth portion 431b of the first meshing tool 431a comes into contact with and meshes with the straight portion of the outer ring sawtooth portion 412, the straight portion of the meshing tool sawtooth portion 432b of the other second meshing tool 432a is located at the end of the inclined portion of the outer ring sawtooth portion 412 and does not mesh, and the straight portion of the meshing tool sawtooth portion 433b of the third meshing tool 433a is located in the middle portion of the inclined portion of the outer ring sawtooth portion 412.By dividing the meshing sections of the meshing tool sawtooth portions 431b, 432b, 432b within one pitch of the outer ring sawtooth portion 412, the gaps in the sawtooth are minimized.

[0068] Meanwhile, in the embodiment of the present invention, the first, second and third multi-angle bundle poles 431, 432, 433 forming a plurality of sets have been described as a set of three, but this is not limited thereto, and the first, second and third multi-angle bundle poles 431, 432, 433 may be arranged in various ways at equal intervals.

[0069] For example, it may be configured with four multi-angle bundle poles, each of which has four interlocking tools, or it may be configured with three multi-angle bundle poles, each of which has eight interlocking tools. By adjusting the number of poles to various numbers, the precision of the backstop ratchet ring 401 can be adjusted according to the application.

[0070] The anti-rotation lever 440 is configured to control the rotation or stopping of the outer ring 410 in a backstop ratchet ring 401 configuration.

[0071] For this purpose, the rotation prevention lever 440 is pivotally mounted on the body 100 and resiliently mounted via a spring, so that it can be inserted into or removed from the stopping groove 413 of the outer ring 410 by rotation. That is, when inserted, it blocks the rotation of the outer ring 410, and when removed, it allows the rotation of the outer ring 410.

[0072] The pendulum drive shaft operating plate 500 is configured to transmit a rotational force to the pendulum drive shaft 300 in the configuration of the indirect live line automatic direction changing pendulum type rotary drive ratchet 1 according to the present invention.

[0073] For this purpose, the pendulum drive shaft operating plate 500 is in the form of a circular plate having a predetermined thickness, and is connected to the periphery of the pendulum drive shaft 300 at the front side of the clutch part 400, and has a triangular sawtooth part 510 protruding from the periphery of the middle part.

[0074] The pendulum 600 is configured to control the reciprocating rotation of an automatic reversing pole 800 (described later) by its pendulum motion in the configuration of the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention.

[0075] For this purpose, the pendulum 600 is configured to pass through the rear side of the pendulum driving shaft operating plate 500 without rotational interference, protrudes to one side, and is formed with a horizontal long hole 610 for accommodating the cam 220 of the rotation operating lever 200. When the cam 220 rotates, it interferes with the horizontal long hole 610 and performs a pendulum motion of reciprocating around the pendulum driving shaft 300.

[0076] The pendulum 600 has an automatic reversal pole mounting groove 620 formed on the front surface between the rotary working shaft 210 and the pendulum drive shaft working plate 500, in which an automatic reversal pole 800 (described later) is mounted.

[0077] The support plate 700 is configured to mount a pole reversal key 900, which will be described later, in the configuration of the indirect live line automatic direction changing pendulum type rotary drive ratchet 1 according to the present invention.

[0078] For this purpose, the support plate 700 is configured to pass through the front side of the pendulum driving shaft operating plate 500 without rotation interference, is configured to be connected to the pendulum 600 to restrain the pendulum driving shaft operating plate 500, and is configured to protrude toward the rotation operating shaft 210.

[0079] In the configuration of the indirect live line automatic direction changing pendulum type rotary drive ratchet 1 according to the present invention, the automatic reversing pole 800 is configured to automatically rotate the pendulum drive shaft working plate 500 in the forward or reverse direction by interfering with the pendulum drive shaft working plate 500.

[0080] For this purpose, the automatic reversal pole 800 is configured to be coupled to the automatic reversal pole mounting groove 620 of the pendulum 600 via a pole shaft 801, so that the pendulum drive shaft operating plate 500 is configured to rotate reciprocally.

[0081] Meanwhile, in the present invention, as shown in FIG. 10, the automatic reversing pole 800 has first and second triangular engaging protrusions 810, 810' symmetrically protruding from the tip, i.e., on the pendulum driving shaft operating plate 500 side, which selectively engage with the sawtooth portion 510 of the pendulum driving shaft operating plate 500.

[0082] First locking grooves 821, 821' and second locking grooves 822, 822' are formed to have a curved periphery of the automatic reversing pole 800. Here, the first locking grooves 821, 821' and the second locking grooves 822, 822' are formed symmetrically to each other so that the first locking groove 821 and the second locking groove 822 on either side are located on the first and second locking protrusions 810, 810' sides, respectively.

[0083] In addition, a reversal key mounting groove 830 in which a pole reversal key 900 (described later) is mounted is formed at the center of the automatic reversal pole 800. The reversal key mounting groove 830 is configured to have a tapered groove shape that expands from the pendulum driving shaft operating plate 500 side to the rotary operating shaft 210 side.

[0084] Meanwhile, the automatic reversing pole 800 is configured to be elastically mounted via first and second reversing pole spring balls 840, 840', and the first and second reversing pole spring balls 840, 840' are connected to the pendulum 600 and configured to have elasticity to protrude toward the automatic reversing pole 800.

[0085] Here, in the present invention, the first and second reversing pole spring balls 840, 840' are configured to interfere with the first locking grooves 821, 821' and the second locking grooves 822, 822'. Here, the first reversing pole spring ball 840 is configured to interfere with one of the first locking grooves 821, 821' at an intersecting position, and the second reversing pole spring ball 840' is configured to interfere with one of the second locking grooves 822, 822' at an intersecting position.

[0086] For example, when the pendulum drive shaft operating plate 500 rotates in a forward direction, i.e., clockwise, the first reversing pole spring ball 840 on one side is engaged in the first locking groove 821' located on one side, and the first reversing pole spring ball 840' on the other side is engaged in the second locking groove 822 located on the other side. Conversely, when the pendulum drive shaft operating plate 500 rotates in a counterclockwise direction, it is preferable that the first reversing pole spring ball 840 on one side is engaged in the first locking groove 821 located on one side, and the first reversing pole spring ball 840' on the other side is engaged in the second locking groove 822' located on the other side.

[0087] The pole reversal key 900 is configured to provide a reciprocating rotation force for the automatic reversal pole 800 in the configuration of the indirect live line automatic direction changing pendulum type rotary drive ratchet 1 according to the present invention.

[0088] For this purpose, the pole reversal key 900 is received in the reversal key mounting groove 830 of the automatic reversal pole 800, and is coupled to the support plate 700 via the same pole shaft 801 as the automatic reversal pole 800, and protrudes to one side, i.e., the side of the rotary operating shaft 210. Therefore, when the rotary operating shaft 210 rotates, the locking protrusion 232 of the rotary operating member 230 interferes with it and rotates back and forth.

[0089] Here, the pole reversal key 900 is configured to have a horizontal force that always maintains the horizontal state. To this end, both sides are configured to be resiliently supported by first and second reversal key spring balls 910 and 910′ formed on the support plate 700 with respect to the pole shaft 801.

[0090] The pendulum drive shaft rotating lever 1000 is configured to transmit the rotational force of the pendulum drive shaft operating plate 500 to the pendulum drive shaft 300 in the configuration of the indirect live line automatic direction changing pendulum type rotary drive ratchet 1 according to the present invention.

[0091] For this purpose, the pendulum drive shaft rotating lever 1000 is configured to be coupled to the front side of the pendulum drive shaft 300 and the pendulum drive shaft operating plate 500, and is configured to rotate together with the pendulum drive shaft 300 and the pendulum drive shaft operating plate 500.

[0092] The operation of the automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention having the above-mentioned configuration will now be described in detail with reference to the accompanying drawings.

[0093] 2 to 10, the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention is configured to be connected and mounted to the drums 21, 31 of the tensioner 20 or tensioner 30 using the pendulum drive shaft 300 as shown in Figs. 11 and 12, and to apply a rotating force in the forward or reverse direction to the drums 21, 31. The pendulum drive shaft 300 can be rotated in the forward or reverse direction by simply adjusting the rotation direction of the rotary operation shaft 210 during indirect live line work while a safe distance from the distribution line is secured using a live line work stick equipped with an electric mechanism, without the need to operate a separate direction changing lever.

[0094] Therefore, as an example, in the indirect live line automatic direction changing pendulum type rotary drive ratchet 1 according to the present invention, in order to wind up the belt for tensioning the tensioner 20 or tensioner 30, the pendulum drive shaft 300 is rotated clockwise, i.e., in the positive direction. The operation state will be described below.

[0095] To this end, the rotation actuation lever 200 is rotated counterclockwise as shown in Fig. 13. Here, the rotation prevention lever 440 is inserted into one of the stopping grooves 413 of the outer ring 410 to prevent the outer ring 410 from rotating.

[0096] Therefore, when the rotation actuation lever 200 is operated to rotate the rotation actuation shaft 210 counterclockwise, the cam 220 rotates within the horizontal long hole 610 of the pendulum 600. In this process, the pendulum 600 performs a pendulum motion in which it reciprocates around the pole shaft 801.

[0097] At the same time, the locking protrusion 232 of the rotation actuator 230 formed on the rotation actuator shaft 210 rotates the pole reversal key 900 toward the first locking grooves 821, 821'. Therefore, the pole reversal key 900 pushes the automatic reversal pole 800 toward the first locking grooves 821, 821' to rotate it clockwise around the pole shaft 801. Here, the first locking protrusion 810 on the first locking groove 821 side engages with the sawtooth portion 510 of the pendulum drive shaft operating plate 500.

[0098] Therefore, when the rotary actuation shaft 210 is continuously rotated, the pendulum 600 reciprocates due to the operation of the cam 220 and the horizontal long hole 610. In this process, the pole reversal key 900, which is rotated in the rotational direction by interference with the locking protrusion 232 of the rotary actuation tool 230, supports the first locking grooves 821, 821' side of the automatic reversal pole 800, and pushes and rotates the pendulum drive shaft actuation plate 500 which engages with the automatic reversal pole 800 which reciprocates together with it. Here, the pendulum drive shaft 300 rotates with the forward rotation of the pendulum drive shaft actuation plate 500.

[0099] Meanwhile, the present invention is configured to prevent the pendulum drive shaft 300 from rotating in a reverse direction when the pendulum drive shaft 300 rotates due to tension, as described above, and this is made possible by the clutch unit 400.

[0100] Here, in the present invention, the clutch unit 400 is composed of a backstop ratchet ring 401, and the reverse rotation is prevented by the backstop ratchet ring 401. The operation relationship will be described as follows.

[0101] Referring to FIG. 14, when the inner ring 420 connected to the pendulum drive shaft 300 rotates in the forward direction, the inclined portions of the meshing tool sawtooth portions 431b, 432b, 432b of the first, second and third meshing tools 431a, 432a, 432a constituting the first, second and third multi-angle bundle poles 431, 432, 433 respectively pass along the inclined portion of the outer ring sawtooth portion 412 of the outer ring 410.

[0102] That is, a spring S is elastically attached to each of the first, second and third meshing tools 431a, 432a, 432a of the inner ring 420, so that the meshing tool sawtooth portions 431b, 432b, 432b passing along the outer ring sawtooth portion 412 are pushed backward by the compressive force of the spring S, and the inclined portions of the outer ring sawtooth portion 412 and the inclined portions of the meshing tool sawtooth portions 431b, 432b, 432b slide against each other and pass over each other.

[0103] Meanwhile, when the forward driving is stopped, a rotational force that rotates the inner ring 420 in the reverse direction may act due to the belt tension of the wire tensioner 20 or tensioner 30. Here, in the backstop ratchet ring 401, the meshing tool sawtooth portions 431b, 432b, 432b formed on the first, second, and third meshing tools 431a, 432a, 432a of any one of the first, second, and third multi-angle bundle poles 431, 432, 433 mesh with the outer ring sawtooth portion 412 to prevent the reverse rotation. This allows the wire tensioner 30 or tensioner 30 to stably wind up the belt and apply tension.

[0104] On the other hand, in order to release the tension of the tensioner 20 or tensioner 30 and release the belt, the pendulum drive shaft 300 is rotated counterclockwise, i.e., in the reverse direction. The operation state will be described in detail as follows.

[0105] To this end, as shown in FIG. 15, the rotation actuation lever 200 is separated from the stopping groove 413 of the outer wheel 410 without the operation of a separate direction changing device, etc., so that the outer wheel 410 can rotate.

[0106] Therefore, when the rotary actuation lever 200 is operated to rotate the rotary actuation shaft 210 clockwise, the cam 220 rotates within the horizontal long hole 610 of the pendulum 600. In this process, the pendulum 600 performs a pendulum motion in which it reciprocates around the pole shaft 801.

[0107] In this case, the locking protrusion 232 of the rotation actuator 230 formed on the rotation actuator shaft 210 pushes the pole reversal key 900 up toward the second locking grooves 822, 822'. Therefore, the pole reversal key 900 pushes the automatic reversing pole 800 toward the second locking grooves 822, 822' to rotate it counterclockwise around the pole shaft 801. Here, the second locking protrusion 810' on the second locking groove 822 side of the automatic reversing pole 800 engages with the sawtooth portion 510 of the pendulum drive shaft operating plate 500.

[0108] Therefore, when the rotary actuation shaft 210 is continuously rotated, the pendulum 600 reciprocates due to the operation of the cam 220 and the horizontal long hole 610. In this process, the pole reversal key 900, which is rotated in the rotational direction by interference with the locking protrusion 232 of the rotary actuation tool 230, supports the second locking groove 822' side of the automatic reversal pole 800, and pushes and rotates the pendulum drive shaft actuation plate 500 which engages with the automatic reversal pole 800 which reciprocates together with it. Here, the pendulum drive shaft 300 rotates with the reverse rotation of the pendulum drive shaft actuation plate 500.

[0109] Meanwhile, when the pendulum drive shaft 300 rotates in the reverse direction as described above, the backstop ratchet ring 401 connected to the pendulum drive shaft 300 also rotates together. Here, the backstop ratchet ring 401 can rotate together with the outer ring 410 by engaging the engaging tool sawtooth portions 431b, 432b, 432b formed on the first, second, and third engaging tools 431a, 432a, 432a of any one of the first, second, and third multi-angle bundle poles 431, 432, 433 of the inner ring 420 with the outer ring sawtooth portion 412.

[0110] Meanwhile, in the present invention, when the outer ring 410 is driven by the reverse operation of the inner ring 420 as described above, the backlash (play phenomenon) of the inner ring 420 can be made close to zero, thereby preventing shock during power transmission.

[0111] The above-mentioned operation is made possible by a multi-angle bundle pole unit 430 for transmitting the rotational power of the inner ring 420 to the outer ring 410.

[0112] That is, as shown in FIG. 16, in the present invention, the meshing tool sawtooth portion 431b, 432b, 432b of any one of the first, second and third meshing tools 431a, 432a, 432a of the first, second and third multi-angle bundle poles 431, 432, 433 sequentially meshes with the outer ring sawtooth portion 412 of the outer ring 410.

[0113] As an example, when the straight portion of the meshing tool sawtooth portion 431b of the first meshing tool 431a comes into contact with and meshes with the straight portion of the outer ring sawtooth portion 412, the straight portion of the meshing tool sawtooth portion 432b of the second meshing tool 432a is located at the end of the inclined portion of the outer ring sawtooth portion 412 and does not mesh with it, and the straight portion of the meshing tool sawtooth portion 433b of the third meshing tool 433a is located in the middle portion of the inclined portion of the outer ring sawtooth portion 412.As a result, when the inner ring 420 rotates, the first, second and third meshing tools 431a, 432a, 432a sequentially apply meshing force to the outer ring sawtooth portion 412, so that the multi-angle bundle pole unit 430 is always in a state of sequentially meshing with the outer ring sawtooth portion 412.

[0114] That is, in the backstop ratchet ring 401, the meshing sections of the meshing tool sawtooth portions 431b, 432b, 432b are divided within one pitch of the outer ring sawtooth portion 412. Therefore, meshing force can be obtained despite minute rotation at positions of different angles, so that precise power transmission is possible without backlash when power is transmitted in the opposite direction.

[0115] Meanwhile, in the automatic direction changing pendulum type rotary drive ratchet 1 for indirect live line according to the present invention, when the belt is sufficiently unwound during the work preparation time prior to using the tensioner 20 or tensioner 30, the pendulum drive shaft 300 can be easily rotated in the reverse direction manually without operating the rotation actuation lever 200. This is made possible by adjusting the rotation of the pendulum drive shaft rotation lever 1000 connected to the pendulum drive shaft 300 in a state where the rotation prevention lever 440 is separated from the stopping groove 413 of the outer wheel 410.

[0116] As described above, the automatic direction changing pendulum type rotary drive ratchet for indirect live wires according to the present invention can be used by simply and automatically reversing the direction of rotation of the rotary drive shaft and the operation of the pendulum without the operation of a separate direction changing device when the pendulum drive shaft rotates in the forward or reverse direction. In particular, when driving in the forward direction where the tension of the wire tensioner or tensioner acts, the backstop ratchet ring completely prevents reverse rotation, allowing for stable driving. [Industrial Applicability]

[0117] The automatic direction changing pendulum type rotary drive ratchet for indirect live line according to the present invention can automatically rotate the pendulum drive shaft operating plate in the forward or reverse direction by the reciprocating rotation of the pendulum through the adjustment of the rotation direction of the rotary operating shaft, so that the pendulum drive shaft can be automatically rotated in the forward or reverse direction in a simple indirect live line operation without a separate rotation direction changing operation, and the backstop ratchet ring prevents the backlash phenomenon when the pendulum drive shaft is driven in the reverse direction, so that it can always be reliably rotated in both directions, thereby ensuring the safety of the device. [Explanation of symbols]

[0118] 100 Body 110 Lever shaft installation part 200 Rotation Actuating Lever 210 Rotating shaft 211 Rotary knob 220 Cam 230 Rotary actuator 231 Floating slot 232 Locking protrusion 240 Buffer Key 300 Pendulum Drive Shaft 400 Clutch section 401 Backstop Ratchet Ring 410 Outer ring 411 Inner ring mounting hole 412 Outer ring serrations 412a, 412b Front and rear steps 413 Stopping groove 420 Inner Circle 421 Shaft hole 422 Bundle pole mounting groove 423 Mounting protrusion 424 Finishing plate support 425 Finishing Board 425a Through hole 430 Multi-angle bundle pole unit 431, 432, 433 1st, 2nd and 3rd multi-angle bundle poles 431a, 432a, 432a First, second and third meshing tools 431b, 432b, 432b Meshing tool serrations 440 Anti-rotation lever 500 Pendulum drive shaft operating plate 510 Sawtooth 600 Pendulum 610 Horizontal long hole 620 Automatic reversing pole mounting groove 700 Support plate 800 Auto-reversing pole 801 Pole Axis 810, 810' First and second locking protrusions 821, 821' First locking groove 822, 822' Second locking groove 830 Reverse key mounting groove 840, 840' 1st and 2nd inverted pole spring ball 900 Pole Reversal Key 910, 910' 1st and 2nd inverted key spring ball 1000 Pendulum drive shaft rotating lever

Claims

1. A body (100) having a lever shaft mounting portion (110) formed on one side thereof; a rotary operating lever (200) including a rotary operating shaft (210) axially mounted on the lever shaft mounting portion (110) and having a rotary knob (211); a cam (220) formed at a position eccentric from the center at the tip of the rotary operating shaft (210); a rotary operating tool (230) rotatably coupled to the rotary operating shaft (210) at the rear side of the cam (220), having a floating long hole (231) formed in the circumferential direction and having a locking protrusion (232) protruding from its periphery; and a buffer key (240) connecting the rotary operating shaft (210) and the rotary operating tool (230); a pendulum drive shaft (300) that is pivotally installed on the other side of the body (100) and passes through the body (100) from front to back; a clutch unit (400) coupled to the periphery of the pendulum drive shaft (300) at the front side of the body (100) to prevent the inner ring from rotating in the reverse direction and to rotate the pendulum drive shaft (300) in the forward or reverse direction by the simultaneous reverse rotation of the inner and outer rings; a pendulum drive shaft operating plate (500) which is connected to the periphery of the pendulum drive shaft (300) at the front side of the clutch part (400) and has a sawtooth part (510) formed around the periphery of the middle part; a pendulum (600) connected to the rear side of the pendulum drive shaft operating plate (500), protruding to one side and having a horizontal long hole (610) for accommodating the cam (220), which performs a pendulum motion of reciprocating rotation around the pendulum drive shaft (300) by the operation of the cam (220), and an automatic reversing pole mounting groove (620) formed on the front surface between the rotary operating shaft (210) and the pendulum drive shaft operating plate (500); a support plate (700) which is connected to the pendulum (600) by penetrating the front periphery of the pendulum driving shaft operating plate (500) and protrudes to one side; an automatic reversing pole (800) having a pole shaft (801) coupled to the automatic reversing pole mounting groove (620), interfering with the pendulum drive shaft operating plate (500) and rotating back and forth to apply a reversing rotation force in the forward or reverse direction to the pendulum drive shaft operating plate (500); a pole reversal key (900) which is connected to a pole shaft (801) together with the automatic reversal pole (800), protrudes from the support plate (700) to one side, and when the rotation actuator (230) rotates, interferes with a locking protrusion (232) to provide a reciprocating rotation force for the automatic reversal pole (800), and has a horizontal maintaining force provided by first and second reversal key spring balls (910, 910') whose circumferences are symmetrical with respect to the pole shaft 801; and a pendulum drive shaft rotating lever (1000) coupled to the pendulum drive shaft operating plate (500) and the pendulum drive shaft operating plate (500) in front of the pendulum drive shaft operating plate (500).

2. The buffer key (240) is One side is fixed to the rotary actuator shaft (210), and the other side is located inside the free-moving slot (231) of the rotary actuator (230); When the rotary shaft (210) rotates in the forward or reverse direction, the buffer key (240) rotates freely within the free-moving slot (231) for a certain period of time. The automatic direction changing pendulum type rotary drive ratchet for indirect live line as claimed in claim 1, characterized in that when the ratchet engages with either end of the floating long hole (231), the ratchet rotates the rotary actuator (230) together.

3. The clutch portion (400) is configured as a backstop ratchet ring (401), The backstop ratchet ring (401) is a ring-shaped outer ring (410) having an inner ring mounting hole (411) formed in the center, an outer ring sawtooth portion (412) formed with continuous straight and inclined portions in the circumferential direction on the inner peripheral surface of the inner ring mounting hole (411), and stopping grooves (413) formed at regular intervals around the periphery; an inner ring (420) having a ring-shaped shaft hole (421) through which the pendulum drive shaft (300) is connected, which is mounted in the inner ring mounting hole (411) of the outer ring (410), and having a number of bundle pole mounting grooves (422) formed at regular intervals around its periphery; a multi-angle bundle pole unit (430) that is elastically installed in the bundle pole mounting groove (422) via a spring (S) and operates to extend and retract, and engages with the outer ring sawtooth portion (412) of the outer ring (410) to apply a rotational force in one direction; a rotation prevention lever (440) formed on the body (100) for controlling the rotation or stop of the outer ring (410) by interfering with or being released from the stopping groove (413) of the outer ring (410); 2. The automatic direction changing pendulum type rotary drive ratchet for indirect live line according to claim 1, wherein the multi-angle bundle pole unit (430) is composed of a plurality of sets of first, second and third multi-angle bundle poles (431, 432, 433), and each of the first, second and third multi-angle bundle poles (431, 432, 433) is configured to sequentially mesh with the outer ring sawtooth portion (412) of the outer ring (410) at positions of different angles from each other.

4. The outer ring sawtooth portion (412) of the outer ring (410) is configured to protrude inward and have front and rear stepped portions (412a, 412b) at the front and rear, A mounting protrusion (423) is formed on the rear periphery of the inner ring (420) to be mounted on the rear step portion (412b) of the outer ring (410), and a finishing plate support portion (424) is protruded on the front so as to extend from the shaft hole (421). The automatic direction changing pendulum type rotary drive ratchet for indirect live line according to claim 3, characterized in that the finishing plate support part (424) formed on the front side of the inner ring (420) passes through the finishing plate (425) having a through hole (425a) formed therein, and the finishing plate (425) is attached and coupled to the front step part (412a) to restrain the outer ring (410).

5. The first, second and third multi-angle bundle poles (431, 432, 433) are configured to form a triplet, and each triplet is composed of first, second and third meshing tools (431a, 432a, 432a) each having four radially arranged pieces; The first, second and third meshing tools (431a, 432a, 432a) are elastically mounted in the bundle pole mounting groove 422 at the intersections of the first, second and third meshing tools (431a, 432a, 432a) via springs S so as to have a protruding force, and the ends of the meshing tools are each formed with meshing tool sawtooth portions (431b, 432b, 432b) having straight and inclined portions so as to mesh with the outer ring sawtooth portion (412) of the outer ring (410), 4. The automatic direction changing pendulum type rotary drive ratchet for indirect live line according to claim 3, wherein when the inner ring (420) rotates in one direction, the meshing tool sawtooth portions (431b, 432b, 432b) of the first, second and third multi-angle bundle poles (431, 432, 433) are engaged with and do not interfere with the outer ring sawtooth portion (412) so that the inner ring (420) can rotate freely, and when the inner ring (420) rotates in the other direction, the meshing tool sawtooth portions (431b, 432b, 432b) of any one of the first, second and third multi-angle bundle poles (431, 432, 433) sequentially mesh with the outer ring sawtooth portion (412) to prevent rotation in the opposite direction.

6. The auto-reversing pole (800) is A pair of first and second locking protrusions (810, 810') are formed on one side to selectively engage with the sawtooth portion (510) of the pendulum drive shaft operating plate (500). A first locking groove (821, 821') and a second locking groove (822, 822') are formed symmetrically around the periphery. In the center, a tapered reversal key mounting groove (830) is formed that expands from the pendulum drive shaft operating plate (500) side to the rotary operating shaft (210), so that the pole reversal key (900) is coupled to the pole shaft (801) together with the automatic reversal pole (800). The pendulum (600) is provided with first and second reversing pole spring balls (840, 840') for controlling the reciprocating direction of the automatic reversing pole (800). The automatic direction changing pendulum type rotary drive ratchet for indirect live line according to claim 1, wherein the first and second reversing pole spring balls (840, 840') are configured to be intersected and locked in the first locking groove (821, 821') and the second locking groove (822, 822') of any one of the automatic reversing poles (800).

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