KR101917065B1 - Pulley turning apparatus - Google Patents

Pulley turning apparatus Download PDF

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Publication number
KR101917065B1
KR101917065B1 KR1020180088973A KR20180088973A KR101917065B1 KR 101917065 B1 KR101917065 B1 KR 101917065B1 KR 1020180088973 A KR1020180088973 A KR 1020180088973A KR 20180088973 A KR20180088973 A KR 20180088973A KR 101917065 B1 KR101917065 B1 KR 101917065B1
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South Korea
Prior art keywords
pulley
slot
present
nut
rotating device
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KR1020180088973A
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Korean (ko)
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김영근
이동주
정세환
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한전케이피에스 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B33/00—Hand tools not covered by any other group in this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/52—Pulleys or friction discs of adjustable construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings
    • F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulleys (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

According to an embodiment of the present invention, provided is a pulley rotating apparatus. The pulley rotating apparatus comprises: a curved portion curved to enable one side surface of the curved portion to come in contact with the outer circumferential surface of a pulley and having a slot; an adjusting pin coupled to the slot of the curved portion; and a grip portion connected to the curved portion.

Description

풀리 회전장치{Pulley turning apparatus}[0001] Pulley turning apparatus [0002]

본 발명은 풀리 회전장치에 관한 것이다. 보다 상세하게는 팬벨트 교체 작업 시 작업시간을 단축하고, 작업자의 안전을 확보할 수 있도록 하는 풀리 회전장치에 관한 것이다. The present invention relates to a pulley rotating device. And more particularly, to a pulley rotating device for shortening a working time and ensuring the safety of a worker during a fan belt replacing operation.

발전소 또는 산업현장에는 전동기로부터 회전력을 차축에 전달하는 동력전달장치인 팬벨트(Fan belt)가 사용된다.In a power plant or an industrial field, a fan belt, which is a power transmitting device for transmitting the rotational force from the electric motor to the axle, is used.

팬벨트는, 길이가 신장되거나 과다하게 마모되어 기능저하가 일어날 경우, 정확한 동력전달이 불가능하기 때문에 새것으로 교체해주어야 한다Fan belts should be replaced with new ones if the lengths are stretched or excessively worn to cause deterioration of performance, since accurate power transmission is not possible

종래에는 팬벨트를 교체할 경우, 풀리를 회전시킬 만한 마땅한 교체장비가 없어 드라이버 혹은 그와 유사한 도구를 사용하거나, 사용자가 직접 두 손으로 팬벨트를 풀리로부터 벗겨낸 후 새것으로 교체하였다.Conventionally, when replacing the fan belt, there is no proper replacement device for rotating the pulley, and a driver or a similar tool is used, or the user directly lifts the fan belt from the pulley with both hands and then replaces it with a new one.

이와 같은 작업방식은 팬벨트를 교체할때마다 직접 사용자가 손으로 풀리를 회전시킴으로써, 시간이 많이 소요될 뿐만 아니라, 사용자의 손이 풀리와 팬벨트 사이에 끼여 손가락 협착사고가 생기거나, 부품간의 조립불량으로 인한 안전사고의 염려가 있었으며, 팬벨트와 풀리의 손상을 초래하여 내구성을 떨어뜨리는 문제점이 있었다. This type of operation is not only time-consuming because the user rotates the pulley by hand every time the fan belt is replaced, the user's hand is sandwiched between the pulley and the fan belt to cause finger stenosis, There is a fear of a safety accident caused by a failure, and the fan belt and the pulley are damaged, thereby deteriorating durability.

한국공개특허 제10-2008-0055041호Korean Patent Publication No. 10-2008-0055041

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 특히 팬벨트 교체 작업 시 작업효율을 향상시킬 뿐만 아니라 안전사고를 예방할 수 있도록 하는 풀리 회전장치를 제공하는 데 그 목적이 있다.It is an object of the present invention to provide a pulley rotating device that not only improves work efficiency in a fan belt replacing operation but also prevents a safety accident.

상기 목적을 달성하기 위해 안출된 본 발명의 일실시예에 따른 풀리 회전장치는, 풀리의 외주면에 일측면이 접하도록 절곡 형성되고, 슬롯이 구비되는 절곡부; 절곡부의 슬롯에 체결되는 조절핀; 및 절곡부와 연결되는 손잡이부;를 포함한다.According to an aspect of the present invention, there is provided a pulley rotating device comprising: a bending part formed by bending a circumferential surface of a pulley so as to be in contact with one side surface thereof and having a slot; An adjusting pin which is fastened to a slot of the bent portion; And a handle portion connected to the bent portion.

여기서, 절곡부는, 수평부재와, 수평부재의 일측단에서 하측으로 절곡되는 수직부재로 구성되어, 전체적으로 'ㄱ'형으로 형성될 수 있다.Here, the bent portion may include a horizontal member and a vertical member bent downward from one end of the horizontal member, and may be formed as a whole.

또한, 손잡이부는, 하측단이 수평부재의 가운데 부분에 결합될 수 있다.Further, the handle can be engaged with the middle part of the horizontal member at its lower end.

또한, 슬롯은, 수직부재를 관통하여 상하방향으로 연장 형성될 수 있다.Further, the slot may extend vertically through the vertical member.

본 발명의 일실시예에 따른 풀리 회전장치에 구비된 조절핀은, 너트가 체결되도록 일측단부에 나사산부가 형성될 수 있다.The adjusting pin of the pulley rotating device according to an embodiment of the present invention may have a threaded portion formed at one end thereof so that the nut is fastened.

여기서, 조절핀은, 외주면 일측에 슬롯의 폭보다 크게 확장되는 확장부가 구비될 수 있다.Here, the regulating fins may be provided with an extension part that extends farther than the width of the slot on one side of the outer circumferential surface.

또한, 조절핀은, 타측단부는 체결부으로 형성될 수 있다.In addition, the adjustment pin may be formed as a fastening portion at the other end.

한편, 본 발명의 일실시예에 따른 풀리 회전장치는, 슬롯과 확장부 또는 슬롯과 너트 사이에는 와셔가 삽입될 수 있다.Meanwhile, in the pulley rotating device according to an embodiment of the present invention, a washer may be inserted between the slot and the extension or between the slot and the nut.

본 발명의 일실시예에 따른 풀리 회전장치는 ‘ㄱ’형의 절곡부와, 위치 조절가능한 조절핀을 구비함으로써 다양한 크기의 풀리에 적용가능하며, 정비작업 시간을 단축하고, 안전사고를 예방할 뿐만 아니라 V벨트 및 풀리의 손상을 막아 내구성을 향상시키는 효과가 있다.The pulley rotation device according to an embodiment of the present invention can be applied to pulleys of various sizes by having a bending portion and a position adjustable adjustment pin to shorten maintenance work time and prevent a safety accident But also the durability is improved by preventing damage to the V-belt and the pulley.

도 1은 본 발명의 일실시예에 따른 풀리 회전장치가 풀리에 결합된 상태를 도시한 것이고,
도 2는 본 발명의 일실시예에 따른 풀리 회전장치를 도시한 정면도이고,
도 3은 본 발명의 일실시예에 따른 풀리 회전장치를 도시한 측면도이고,
도 4는 본 발명의 일실시예에 따른 풀리 회전장치에 구비된 조절핀을 도시한 것이다.FIG. 1 is a view showing a state in which a pulley rotating device according to an embodiment of the present invention is coupled to a pulley,
2 is a front view showing a pulley rotating device according to an embodiment of the present invention,
3 is a side view showing a pulley rotating device according to an embodiment of the present invention,
FIG. 4 illustrates an adjustment pin included in a pulley rotating device according to an embodiment of the present invention. Referring to FIG.

이하, 본 발명의 바람직한 실시예를 첨부된 도면들을 참조하여 상세히 설명한다. 우선 각 도면의 구성 요소들에 참조 부호를 부가함에 있어서, 동일한 구성 요소들에 대해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하고 있음에 유의해야 한다. 또한, 본 발명을 설명함에 있어, 관련된 공지 구성 또는 기능에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략한다. 또한, 이하에서 본 발명의 바람직한 실시예를 설명할 것이나, 본 발명의 기술적 사상은 이에 한정하거나 제한되지 않고 당업자에 의해 변형되어 다양하게 실시될 수 있음은 물론이다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

도 1은 본 발명의 일실시예에 따른 풀리 회전장치가 풀리에 결합된 상태를 도시한 것이고, 도 2는 본 발명의 일실시예에 따른 풀리 회전장치를 도시한 정면도이고, 도 3은 본 발명의 일실시예에 따른 풀리 회전장치를 도시한 측면도이고, 도 4는 본 발명의 일실시예에 따른 풀리 회전장치에 구비된 조절핀을 도시한 것이다.FIG. 1 is a front view of a pulley rotating device according to an embodiment of the present invention, FIG. 2 is a front view showing a pulley rotating device according to an embodiment of the present invention, FIG. FIG. 4 is a view illustrating an adjustment pin included in the pulley rotating device according to an embodiment of the present invention. Referring to FIG.

도 1 내지 도 4를 참조하면, 본 발명의 실시예에 따른 풀리 회전장치(100)는, 풀리(12)에 결합되도록 절곡 형성되는 절곡부(120)와, 절곡부(120)와 연결되는 손잡이부(110)를 포함한다. 1 to 4, a pulley rotating device 100 according to an embodiment of the present invention includes a bending portion 120 bent to be coupled to a pulley 12, a handle 120 connected to the bending portion 120, (110).

여기서, 풀리(12)는, 팬벨트(13)가 외주면에 형성된 안착홈(12a)에 안착되고, 회전축(11)을 중심으로 회전되면서 팬벨트(13)를 통해 회전축(11)의 회전력을 전달하도록 구성된다.Here, the pulley 12 is mounted on the seating groove 12a formed on the outer circumferential surface of the fan belt 13 and rotates about the rotation axis 11 to transmit the rotation force of the rotation shaft 11 through the fan belt 13 .

또한, 풀리(12)는, 평면부에서 내측방향으로 형성되는 요홈부(12b)가 형성된다.Further, the pulley 12 has a recessed portion 12b formed in the inward direction in the plane portion.

본 발명의 일실시예에 따른 풀리 회전장치(100)에 구비된 절곡부(120)는, 상기 풀리(12)의 외주면에 일측면이 접하고, 절곡부(120)의 타측면은 풀리(12)의 평면 방향에 대향하도록 절곡 형성된다.The bent portion 120 of the pulley rotating device 100 according to the embodiment of the present invention has one side contacted to the outer peripheral surface of the pulley 12 and the other side of the bent portion 120 is connected to the pulley 12, As shown in Fig.

즉, 절곡부(120)는, 풀리(12)의 외주면에 접하는 수평부재(121)와, 수평부재(121)의 일측단에서 하측으로 절곡되는 수직부재(123)로 구성되어, 전체적으로 'ㄱ'형으로 형성될 수 있다.That is, the bent portion 120 is composed of a horizontal member 121 which is in contact with the outer peripheral surface of the pulley 12 and a vertical member 123 which is bent downward from one end of the horizontal member 121, As shown in FIG.

또한, 절곡부(120)는, 수직부재(123)를 관통하여 상하방향으로 연장 형성되는 슬롯(123a)이 구비되고, 슬롯(123a)에는 조절핀(130)이 체결되도록 구성될 수 있다.The bent portion 120 may include a slot 123a extending through the vertical member 123 in the vertical direction and the adjustment pin 130 may be coupled to the slot 123a.

본 발명의 일실시예에 따른 풀리 회전장치(100)에 구비된 조절핀(130)은, 너트(133)가 체결되도록 일측단부에 나사산부(131)이 형성되고, 타측단부는 원통형의 체결부(135)가 구비된다.The adjusting pin 130 provided in the pulley rotating device 100 according to an embodiment of the present invention includes a threaded portion 131 formed at one end of the adjusting pin 130 for fastening the nut 133, (135).

여기서, 조절핀(130)은, 외주면 일측에 슬롯(123a)의 폭보다 크게 확장되는 확장부(136)가 구비될 수 있다. Here, the adjusting pin 130 may be provided with an enlarged portion 136 which is extended from one side of the outer circumferential surface to a width greater than the width of the slot 123a.

확장부(136)는, 조절핀(130)이 풀리(12)의 요홈부(12b)에 삽입되어 결합될 때 확장부(136)가 풀리(12)의 평면부에 걸려 조절핀(130)이 삽입방향으로 이동이 제한되도록 기능하고, 이에 따라 조절핀(130)의 나사산부(131)에 너트(133)를 체결할 때 조절핀(130)이 고정된 위치에서 회전되며 원활하게 체결될 수 있게 된다. When the adjustment pin 130 is inserted into the recessed portion 12b of the pulley 12 and the extension portion 136 is engaged with the plane portion of the pulley 12, When the nut 133 is fastened to the threaded portion 131 of the adjusting pin 130, the adjusting pin 130 rotates at a fixed position and can be smoothly fastened do.

한편, 본 발명의 일실시예에 따른 풀리 회전장치(100)는, 도 2에 도시된 바와 같이, 슬롯(123a)과 너트(133) 및/또는 슬롯(123a)과 확장부(136) 사이에는 와셔(137,138)가 삽입됨으로써 풀리 회전장치(100)의 내구성을 향상시키고 체결작업이 보다 원활하도록 구성할 수도 있다.2, the pulley rotating apparatus 100 according to an embodiment of the present invention includes a slot 123a and a nut 133, and / or a slot 123a and an extension 136, By inserting the washers 137 and 138, the durability of the pulley rotating device 100 can be improved and the fastening operation can be made more smooth.

본 실시예에서 풀리 회전장치(100)는, 작업자의 힘을 전달시켜 풀리 회전장치(100)을 동작시키기 위해서 절곡부(120)와 연결되는 손잡이부(110)를 포함한다.In this embodiment, the pulley rotating device 100 includes a handle 110 connected to the bending portion 120 to operate the pulley rotating device 100 by transmitting the worker's force.

여기서, 손잡이부(110)는, 하측단이 절곡부(120)의 수평부재(121) 가운데 부분에 결합되어 힘이 균형있게 전달되도록 구성될 수 있다.Here, the handle 110 may be configured such that the lower end thereof is coupled to a central portion of the horizontal member 121 of the bent portion 120 so that the force is transmitted in a balanced manner.

전술된 바와 같이, 본 발명의 일실시예에 따른 풀리 회전장치(100)는, 풀리(12)에 설치된 팬벨트(13)를 제거할 때, 절곡부(120)가 풀리에 밀착 체결됨으로써 풀리(12)를 안정되게 회전시킬 수 있다.As described above, in the pulley rotation device 100 according to the embodiment of the present invention, when the fan belt 13 installed on the pulley 12 is removed, the bent portion 120 is tightly fastened to the pulley, 12 can be stably rotated.

또한, 팬벨트(13)의 신품을 장착시에도 본 발명의 일실시예에 따른 풀리 회전장치(100)를 활용하여 팬벨트(13)를 안착홈(12a)에 끼운 상태에서 풀리(12)를 회전시킴으로써 풀리(12)의 회전과 동시에 팬벨트(13)가 원활하게 정위치에 장착되게 된다.When the fan belt 13 is inserted into the seating groove 12a by using the pulley rotating device 100 according to the embodiment of the present invention, By rotating the fan belt 13, the fan belt 13 is smoothly mounted at the same position as the pulley 12 is rotated.

또한, 본 발명의 일실시예에 따른 풀리 회전장치(100)를 전용 공구로서 풀리(12)의 회전 및 팬벨트(13) 장착시 사용할 경우, 팬벨트(13) 및 풀리(12) 회전시 맨손으로 잡지 않고 팬벨트(13) 교체가 가능함으로써 손가락 끼임 및 접선물림 사고를 방지할 수 있게 된다.When the pulley 12 is rotated and the fan belt 13 is mounted as a special tool in the pulley rotating device 100 according to the embodiment of the present invention, when the fan belt 13 and the pulley 12 are rotated, The fan belt 13 can be replaced without being caught by the fingers 13 and 14, thereby preventing fingers and tangles.

또한, 본 발명의 일실시예에 따른 풀리 회전장치(100)를 사용하면 지렛대 원리에 의해 보다 적은 에너지로 손쉽게 풀리(12)를 회전시킴으로써 작업 효율을 향상시키는 효과가 있다.Further, when the pulley rotating device 100 according to the embodiment of the present invention is used, the working efficiency can be improved by rotating the pulley 12 easily with less energy by the lever principle.

이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위 내에서 다양한 수정, 변경 및 치환이 가능할 것이다. 따라서, 본 발명에 개시된 실시예 및 첨부된 도면들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예 및 첨부된 도면에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

11: 회전축
12: 풀리
13: 팬벨트
100: 풀리 회전장치
110: 손잡이부
120: 절곡부
121: 수평부재
123: 수직부재
123a: 슬롯
130: 조절핀11:
12: Pulley
13: Fan belt
100: Pulley rotation device
110: Handle portion
120:
121: Horizontal member
123: vertical member
123a: Slot
130: regulating pin

Claims (8)

풀리의 외주면에 일측면이 접하도록 절곡 형성되고, 슬롯이 구비되는 절곡부;
절곡부의 슬롯에 체결되는 조절핀; 및
절곡부와 연결되는 손잡이부;를 포함하고,
절곡부는,
수평부재와 수평부재의 일측단에서 하측으로 절곡되는 수직부재로 구성되어, 전체적으로 'ㄱ'형으로 형성되며,
슬롯은,
수직부재를 관통하여 상하방향으로 연장 형성되어, 풀리의 평면부에서 내측방향으로 형성된 요홈부의 위치에 맞게 조절핀의 위치를 조정할 수 있으며,
조절핀은,
너트가 체결되도록 일측단부에 나사산부가 형성되고, 외주면 일측에 슬롯의 폭보다 크게 확장되는 확장부가 구비되며, 타측단부는 체결부로 형성되고,
확장부는,
조절핀이 풀리의 요홈부에 삽입되어 결합될 때, 풀리의 평면부에 걸려 조절핀이 삽입방향으로 이동이 제한되도록 기능하는, 풀리 회전장치.
A bending portion formed on an outer circumferential surface of the pulley so as to be in contact with one side surface thereof and having a slot;
An adjusting pin which is fastened to a slot of the bent portion; And
And a handle portion connected to the bent portion,
In the bending portion,
A horizontal member and a vertical member bent downward from one end of the horizontal member,
The slot,
The position of the adjusting pin can be adjusted so as to correspond to the position of the recessed portion formed in the inward direction in the plane portion of the pulley,
The adjustment pin,
A threaded portion is formed at one end of the nut so that the nut is fastened to the nut, and an enlarged portion is formed at one side of the outer circumferential surface to extend more than the width of the slot,
The expanding portion,
Wherein when the adjusting pin is inserted into the recessed groove portion of the pulley, the adjustment pin is caught by the flat surface portion of the pulley, so that the adjustment pin is restricted from moving in the insertion direction.
삭제delete 청구항 1에 있어서,
손잡이부는,
하측단이 수평부재의 가운데 부분에 결합되는, 풀리 회전장치.
The method according to claim 1,
In the handle portion,
And the lower end is coupled to the middle portion of the horizontal member.
삭제delete 삭제delete 삭제delete 삭제delete 청구항 1에 있어서,
슬롯과 확장부 또는 슬롯과 너트 사이에는 와셔가 삽입되는, 풀리 회전장치.
The method according to claim 1,
A washer is inserted between the slot and the extension or between the slot and the nut.
KR1020180088973A 2018-07-31 2018-07-31 Pulley turning apparatus KR101917065B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200496968Y1 (en) * 2022-11-14 2023-06-21 한전케이피에스 주식회사 Generator's seal lower housing rotation guide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050012347A1 (en) * 2003-07-18 2005-01-20 Smith Gale L. Apparatus for and method of removing a pulley
US20050217437A1 (en) * 2004-04-06 2005-10-06 Lisle Corporation Cam gear holding and turning wrench
US20140174265A1 (en) * 2012-12-20 2014-06-26 Martin Thomas Wirth Holding Wrench with Torsion-Resistant Variable Engagement Mechanisms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050012347A1 (en) * 2003-07-18 2005-01-20 Smith Gale L. Apparatus for and method of removing a pulley
US20050217437A1 (en) * 2004-04-06 2005-10-06 Lisle Corporation Cam gear holding and turning wrench
US20140174265A1 (en) * 2012-12-20 2014-06-26 Martin Thomas Wirth Holding Wrench with Torsion-Resistant Variable Engagement Mechanisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200496968Y1 (en) * 2022-11-14 2023-06-21 한전케이피에스 주식회사 Generator's seal lower housing rotation guide

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