KR20010050317A

KR20010050317A - Power tool

Info

Publication number: KR20010050317A
Application number: KR1020000051809A
Authority: KR
Inventors: 죤 케이 졍커스
Original assignee: 죤 케이 졍커스
Priority date: 1999-10-27
Filing date: 2000-09-02
Publication date: 2001-06-15
Also published as: AU5660600A

Abstract

PURPOSE: A power tool is provided to improve the accuracy of a torque and the power. CONSTITUTION: A power tool comprises a combining device combined with a screw combining member; a link(1) having a latchet device(10) to rotate the combining device for combining the screw combining member; a driving device operated to rotate the latchet device and contained a rotational cam device(33); and a connecting device to rotate the cam device through an external too when the external device is connected with the cam device and to combine or separate the screw combining member by rotating the combining device through the rotation of the latchet device. Thereby, the cost of the power tool is reduced.

Description

Power Tool {POWER TOOL}

본 발명은 나선연결구를 체결하거나 이완시키기 위한 동력공구에 관한 것이다.The present invention relates to a power tool for engaging or relaxing a helix connector.

특히, 본 발명은 하우징, 체결되거나 이완될 나선연결구에 결합하기 위한 결합수단, 이러한 결합수단에 의하여 결합된 나선연결구를 회전시키기 위하여 결합수단을 회전시키기 위한 래칫기구와, 결합수단과 함께 래칫을 회전시켜 나선연결구를 회전시키기 위하여 래칫수단에 작용하는 구동장치를 갖는 동력공구에 관한 것이다.In particular, the present invention provides a housing, a coupling means for coupling to a spiral connector to be fastened or loosened, a ratchet mechanism for rotating the coupling means to rotate a spiral connector coupled by the coupling means, and a ratchet with the coupling means. The present invention relates to a power tool having a driving device acting on the ratchet means to rotate the spiral connector.

이러한 동력공구는 당해 기술분야에서 잘 알려져 있다.Such power tools are well known in the art.

이러한 동력공구를 위한 구동수단은 예를 들어 본원 발명자의 미국특허 제5,005,447호, 제5,029,497호 및 재발행 특허 제 33951 호 등에 기술된 바와 같이 수압작동형 구동수단일 수 있다.The drive means for such a power tool may be hydraulically actuated drive means as described, for example, in U.S. Pat.Nos. 5,005,447, 5,029,497, and reissued patent 33951.

이들 공구는 수압동력으로만 작동된다. 그러나, 대부분의 경우 수요자는 이러한 종류의 수압작동형 동력공구에 의하여 제공되는 토크의 정확성이나 수압에 의하여 제공된 동력을 요구하지 않는다.These tools are operated only by hydraulic power. In most cases, however, the consumer does not require the accuracy of the torque provided by this kind of hydraulically operated power tool or the power provided by the hydraulic pressure.

수요자는 측방향 또는 상측방향으로 보다 넓은 공간을 요구하는 수압작동형 동력공구를 이용하기 보다는 수압장치의 이용없이 제한된 공간에서 사용될 수 있는 공구의 사용을 좋아할 것이다.The consumer would prefer to use a tool that can be used in confined spaces without the use of hydraulic devices, rather than using hydraulically operated power tools that require more space laterally or upwardly.

또한 수요자는 기존의 공구에 의하여 제공되는 것보다 높은 토크출력을 요구한다.The consumer also demands higher torque output than that provided by conventional tools.

따라서, 본 발명의 목적은 종래의 결점이 없고 기존의 공구를 더욱 개선한 동력공구를 제공하는데 있다.It is therefore an object of the present invention to provide a power tool which is free from conventional drawbacks and which further improves existing tools.

본 발명을 첨부도면에 의거하여 보다 상세히 설명하면 다음과 같다.Referring to the present invention in more detail based on the accompanying drawings as follows.

도 1과 도 2는 본 발명에 따른 동력공구의 링크의 평면도와 측면도.1 and 2 are a plan view and a side view of a link of a power tool according to the present invention.

도 3과 도 4는 본 발명 동력공구에 사용되는 공지의 수압구동장치를 보인 정면도와 측면도.3 and 4 are a front view and a side view showing a known hydraulic drive device used in the power tool of the present invention.

도 5는 수압구동장치가 링크에 연결된 본 발명 동력공구의 측면도.Figure 5 is a side view of the power tool of the present invention with the hydraulic drive connected to the link.

도 6은 본 발명의 비수압형 구동장치를 가진 동력공구의 측면도.Figure 6 is a side view of a power tool with a non-hydraulic drive of the present invention.

이러한 목적과 이후 명백하게 되는 다른 목적에 따라, 본 발명의 동력공구는 링크하우징, 체결되거나 이완될 나선연결구에 결합되는 결합수단과, 결합수단에 의하여 결합된 나선연결구를 회전시키기 위하여 결합수단을 회전시키기 위한 래칫수단을 갖는 링크; 래칫수단에 연결되어 이를 회전시키도록 작동하며 회전시 래칫수단이 회전될 수 있도록 배치된 회전형 캠수단을 포함하는 구동수단과; 캠수단을 외부공구에 연결하여 외부공구가 캠수단에 열결되었을 때 외부공구가 캠수단을 회전시키고 래칫수단이 회전되어 결합수단을 회전시킴으로써 나선연결구를 체결 또는 이완시킬 수 있도록 하는 연결수단을 갖는 동력공구를 제공한다.According to this object and other objects that will become apparent hereinafter, the power tool of the present invention is a link housing, a coupling means coupled to a spiral connector to be fastened or relaxed, and a rotating means for rotating the coupling means coupled by the coupling means. A link having ratcheting means for it; Drive means connected to the ratchet means and operative to rotate it, the rotatable cam means being arranged to rotate the ratchet means upon rotation; Power having a connecting means for connecting the cam means to the external tool so that when the external tool is engaged with the cam means, the external tool rotates the cam means and the ratchet means rotates to engage or loosen the helix connector by rotating the coupling means. Provide tools.

본 발명에 따른 동력공구는 도 1과 도 2에서 보인 링크(1)를 갖는다.The power tool according to the invention has a link 1 as shown in FIGS. 1 and 2.

이 링크는 두개의 하우징 플레이트(2)(3)와 커버(4)로 구성되는 하우징을 갖는다.This link has a housing consisting of two housing plates 2, 3 and a cover 4.

하우징 플레이트(2)(3)는 리벳트(5)에 의하여 서로 연결되고 커버(4)도 역시 리벳트(6)에 의하여 하우징 플레이트(2)(3)에 연결된다.The housing plates 2 and 3 are connected to each other by means of rivets 5 and the cover 4 is also connected to the housing plates 2 and 3 by means of rivets 6.

또한 링크(1)에는 하우징 플레이트(2)(3)의 대향면에 형성된 요구(grooves)(9)내에서 이동하는 피봇트 핀(8)을 통하여 하우징 플레이트에 회전가능하게 삽입된 구동레바(7)가 구비되어 있다.The link 1 also has a drive lever 7 rotatably inserted in the housing plate via a pivot pin 8 moving in grooves 9 formed on opposite surfaces of the housing plate 2, 3. ) Is provided.

래칫기구는 구동레바(7)에 회전가능하게 배치되고 예를 들어 육각개방부 또는 육각축으로 구성된 내측 결합부(11)를 갖는 래칫(10)을 포함한다.The ratchet mechanism comprises a ratchet 10 rotatably disposed on the drive lever 7 and having an inner engaging portion 11 composed of, for example, a hexagonal open portion or a hexagonal shaft.

이 래칫(10)은 폴(pawl)(14)의 톱니(13)에 결합하는 외측 톱니(12)를 갖는다.This ratchet 10 has an outer tooth 12 that engages the teeth 13 of a pawl 14.

폴(14)은 구동레바(7)의 개방부에 활동가능하게 삽입되고 래칫(10)을 향하여 스프링(15)에 의하여 탄력적으로 접속된다.The pawl 14 is operatively inserted into the opening of the drive lever 7 and is elastically connected by a spring 15 towards the ratchet 10.

링크하우징, 특히 하우징 플레이트(2)(3)는 개방부(16)를 포함하는 연결수단을 갖는다.The link housing, in particular the housing plate 2, 3, has a connecting means comprising an opening 16.

또한 본 발명의 동력공구는 도 3 및 도 5에 도시한 바와 같은 제1구동수단(21)을 갖는다.The power tool of the present invention also has a first drive means 21 as shown in Figs.

이 제1구동수단(21)은 수압작동형 구동수단으로서 구성된다. 제1구동수단은 내부에서 피스턴(23)이 왕복운동하는 수압실린더를 구성하는 하우징(22)과, 피스턴(23)에 연결된 피스턴 롯드(24)로서 구성된 구동요소를 포함한다.This first driving means 21 is configured as a hydraulically actuated driving means. The first driving means includes a housing 22 constituting a hydraulic cylinder in which the piston 23 reciprocates, and a driving element configured as a piston rod 24 connected to the piston 23.

수압유체는 수압유체공급원(도시하지 않았음)에 연결된 수압연결부재(25)를 통하여 하우징(22)내에서 피스턴(23)에 의하여 형성된 양측의 챔버에 공급된다.The hydraulic fluid is supplied to chambers on both sides formed by the piston 23 in the housing 22 through a hydraulic connection member 25 connected to a hydraulic fluid source (not shown).

하우징(22)에는 개방부(26)에 의하여 형성된 연결수단이 구비되어 있다.The housing 22 is provided with connecting means formed by the opening 26.

구동요소 즉, 피스턴 롯드(24)에는 개방부로서 형성될 수 있는 연결수단(27)이 구비되어 있다.The drive element, ie the piston rod 24, is provided with connecting means 27, which can be formed as an opening.

본 발명에 따른 동력공구가 수압작동형 동력공구로서 작동될 때, 수압구동 하우징(22)은 개방부(16)를 개방부(26)에 정렬시키고 정렬된 개방부를 통하여, 예를 들어 핀과 같은 연결요소를 관통시켜 링크(1)에 연결된다.When the power tool according to the invention is operated as a hydraulically actuated power tool, the hydraulically driven housing 22 aligns the opening 16 to the opening 26 and through the aligned opening, for example, such as a pin. It is connected to the link 1 through the connecting element.

수압구동장치에서 피스턴 롯드(24)의 자유단부는 예를 들어 핀(8)을 개방부(27)에 삽입함으로서 링크(1)의 핀(8)에 연결된다.In the hydraulic drive the free end of the piston rod 24 is connected to the pin 8 of the link 1, for example by inserting the pin 8 into the opening 27.

수압유체가 구동장치의 실린더에 공급될 때, 피스턴(23)이 이동하여 피스턴 롯드(24)가 이동되고 이러한 피스턴 롯드의 이동으로 구동레바(7)와 이에 배치된 폴(14)이 회전하며, 폴(14)이 래칫(10)을 회전시키고 이 래칫은 래칫의 결합부(11)에의하여 결합되는 예를 들어 너트, 볼트헤드 등의 나선연결구를 회전시킨다. 이로써 나선연결구가 체결되거나 이완될 수 있다.When the hydraulic fluid is supplied to the cylinder of the drive device, the piston 23 moves, the piston rod 24 moves, and the driving lever 7 and the pawl 14 disposed thereon rotate with the movement of the piston rod. The pawl 14 rotates the ratchet 10, which in turn rotates a spiral connector such as a nut, a bolt head, etc., which is engaged by the coupling 11 of the ratchet. This allows the spiral connector to be fastened or relaxed.

본 발명에 따른 동력공구는 제 6 도에 도시한 바와 같은 제2구동수단(31)을 갖는다.The power tool according to the invention has a second drive means 31 as shown in FIG.

제2구동수단은 하우징(32), 하우징내에서 회전할 수 있게 되어 있고예를 들어 이중캠의 형태로 구성된 캠(33), 캠로울러(34)와, 예를 들어 캠 롯드의 형태로 구성되고 캠(33)의 회전중에 로울러(34)와 가이드 링(36)을 통하여 이동될 수 있게 된 구동부재(35)를 갖는다.The second driving means is configured to be rotatable in the housing 32, the housing, for example, in the form of a double cam, a cam 33, a cam roller 34 and a cam rod, for example. It has a drive member 35 which can be moved through the roller 34 and the guide ring 36 during the rotation of the cam 33.

스프링 슬리이브(38)내에 배치된 압축스프링(37)이 복귀스프링으로서 작동한다.A compression spring 37 disposed in the spring sleeve 38 acts as a return spring.

구동하우징(32)은 연결수단(39)을 갖는 반면에 구동부재(35)는 예를 들어 개방부로서 형성된 연결수단(40)을 갖는다.The drive housing 32 has a connecting means 39, while the drive member 35 has a connecting means 40, for example formed as an opening.

비수압작동형공구로서 사용하고자 할 때, 수요자는 링크(1)로부터 수압작동형 제1구동수단(21)을 분리하고 비수압작동형 제2구동수단(31)의 개방부인 연결수단(39)를 링크(1)의 개방부(16)에 정렬시킨다음 핀과 같은 연결요소를 정렬된 개방부를 통하여 관통연결함으로서 제2구동수단(31)을 링크(1)에 연결한다.When it is intended to be used as a non-hydraulic actuated tool, the consumer separates the hydraulic actuated first drive means 21 from the link 1 and connects 39 which is an opening of the non-hydraulic actuated second drive means 31. Is aligned with the opening 16 of the link 1 and then the second driving means 31 is connected to the link 1 by connecting a connecting element such as a pin through the aligned opening.

캠 롯드 형태로 된 구동부재(35)의 단부에 형성된 예를 들어 개방부형태의 연결수단(40)이 구동레바(7)의 핀(8)에 결합된다.A connecting means 40, for example in the form of an open portion, formed at the end of the drive member 35 in cam rod form is coupled to the pin 8 of the drive lever 7.

캠이 회전할 때, 캠 롯드가 왕복운동하여 구동레바(7)와 폴(14)을 회전시킴으로서 폴(14)이 래칫(10)을 회전시키며 이로써 래칫(10)의 내측 결합부(11)에 결합된 나선연결구가 회전된다.When the cam is rotated, the cam rod reciprocates to rotate the drive lever 7 and the pawl 14 so that the pawl 14 rotates the ratchet 10, thereby inducing the inner engagement 11 of the ratchet 10. The combined spiral connector is rotated.

캠(33)에는 예를 들어 다각형(사각형) 돌출부 또는 개방부의 형태로 구성된 제3의 연결수단(41)을 갖는다.The cam 33 has third connecting means 41, for example configured in the form of a polygonal (square) protrusion or opening.

이 제3의 연결수단(41)은 캠(33)을 회전시키기 위하여 예를 들어 수요자가 이미 소지하고 있는 수동토크렌치, 치터 바아(cheater bar), 수동멀티플러(multiplier), 에어멀티플러, 에어렌치, 전기렌치, 전기멀티플러, 임펙트렌치 등과 같은 다른 공구에 의하여 결합될 수 있다.The third connecting means 41 is, for example, a manual torque wrench, a cheater bar, a manual multiplier, an air multiplier, air, which the consumer already possesses, in order to rotate the cam 33. It may be coupled by other tools such as wrenches, electric wrenches, electric multipliers, impact trenches and the like.

이상으로 설명된 본 발명의 요소들은 상기 언급된 형태와는 다른 구성에 유용하게 적용할 수 있는 것이다.The elements of the present invention described above can be usefully applied to other configurations than the above-mentioned form.

본 발명이 동력공구에 관련하여 설명되고 이에 구체화었으나 본 발명은 이로써 한정되는 것은 아니고 본 발명의 기술사상에서 벗어나지 않는 한 여러가지 수정과 구조적인 변경이 가능하다.Although the present invention has been described and embodied in connection with a power tool, the present invention is not limited thereto and various modifications and structural changes may be made without departing from the technical spirit of the present invention.

달리 분석함이 없이 이상의 설명으로 종래기술의 관점으로부터 통상적인 지식을 적용하여 본 발명의 일반적이거나 특정한 관점의 중요한 요소를 구성하는 특징을 생략하지 아니하고 여러 분야에 용이하게 적용할 수 있는 본 발명의 요지가 명백하게 된다.The gist of the present invention can be easily applied to various fields without omitting features constituting important elements of general or specific aspects of the present invention by applying ordinary knowledge from the viewpoint of the prior art without analyzing otherwise. Becomes apparent.

특허로서 보호받고자 하는 본 발명의 청구범위는 다음의 첨부된 청구범위에서 설명된다.The claims of the invention which are intended to be protected as patents are set forth in the following appended claims.

동력공구가 본 발명에 따라 구성되었을 때, 수요자는 비수압작동형의 동력공구로서 사용하기 위하여 링크와 조합하여 비수압작동형 구동수단을 이용할 수 있다.When the power tool is constructed in accordance with the present invention, the consumer can use the non-hydraulic actuated drive means in combination with the link for use as a non-hydraulic actuated power tool.

캠을 이용하는 이와 같은 비수압작동형 동력공구는 입력/출력의 잇점이 있으며 비교적 저렴하다.Such non-hydraulic powered tools using cams have the advantage of input / output and are relatively inexpensive.

또한, 이는 수요자가 이미 소지하고 있는 수동토크렌치, 치터 바아, 수동멀티플러, 에어멀티플러, 에어렌치, 전기렌치, 전기멀티플러, 임펙트렌치 등으로 작동될 수 있다.In addition, it may be operated by a manual torque wrench, a cheater bar, a manual multiplier, an air multiplier, an air wrench, an electric wrench, an electric multiplier, an impact wrench, and the like already carried by the consumer.

본 발명은 이들 공구의 출력을 배가하고 이들의 사각구동공구를 공간이 제한된 육각 8-포인트 또는 12-포인트 공구로 전환하여 사용할 수 있도록 하는 경제적인 잇점을 제공한다.The present invention provides an economical advantage that allows the output of these tools to be doubled and their rectangular drive tools can be converted and used as space-limited hexagonal 8- or 12-point tools.

또한 이는 수요자가 손으로 공구를 다룰 수 있도록 하고 필요한 경우 수압을 연결하여 사용할 수 있도록 한다.It also allows the consumer to handle the tool by hand and, if necessary, to connect the hydraulic pressure.

Claims

A power tool for fastening or releasing a spiral connector, the power tool being coupled to a link housing, a spiral connector to be fastened or relaxed, and a coupling means for rotating the coupling means to rotate the spiral connector coupled by the coupling means. A link having ratchet means; Drive means connected to the ratchet means and operative to rotate it, the rotatable cam means being arranged to rotate the ratchet means upon rotation; It is composed of connecting means for connecting the cam means to the external tool so that when the external tool is connected to the cam means, the external tool rotates the cam means and the ratchet means rotates to engage or loosen the spiral connector by rotating the coupling means. Characterized by power tools.

2. A power tool as claimed in claim 1, wherein a spring means for holding said drive means in opposite directions to rotate said drive means to its initial position is provided.

3. The power tool according to claim 2, wherein the cam means is spaced from each other and comprises a double cam including a first cam portion and a second cam portion disposed on both sides of a rotation axis of the cam means.

3. The power tool according to claim 2, wherein a spring sleeve in which the spring means is disposed is configured.

2. The power tool according to claim 1, wherein an intermediate member is disposed between the cam means and the driving means and configured in the form of a rotary roller.

The power tool according to claim 5, wherein a guide ring provided between the roller and the driving means is configured.

2. A drive element according to claim 1, characterized in that the drive means comprise a drive element in the form of a camrod arranged such that one end is rotatably connected to the ratchet means and the other end is actuated by the cam means. Power tools.

2. The driving device according to claim 1, wherein the driving means is in the form of a non-hydraulic driving means having a driving housing and a non-hydraulic actuating drive element, and is composed of hydraulic driving means including a driving housing and a hydraulic actuating component. The first connecting means is provided in the drive housing of the link housing, the non-hydraulic drive means and the drive housing of the hydraulic drive means, wherein one of the drive housing of the non-hydraulic drive means or the drive housing of the hydraulic drive means is alternately connected to the link housing. When the drive housing of the non-hydraulic drive means is connected to the link housing, or when the drive housing of the hydraulic drive means is correspondingly connected to the link housing, the drive element of the hydraulic drive means or the drive element of the non-hydraulic drive means is described. Driving elements of the non-hydraulic drive means during operation due to the second connecting means which alternately connect to the ratchet mechanism The power tool characterized in that is adapted to be driven thereby to the elements of the hydraulic drive means are alternately rotate the ratchet mechanism such that rotation of the link means fastening the screw connector is coupled with the connection means of the link means or released.