WO2011099654A1 - Driver - Google Patents

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Publication number
WO2011099654A1
WO2011099654A1 PCT/KR2010/000794 KR2010000794W WO2011099654A1 WO 2011099654 A1 WO2011099654 A1 WO 2011099654A1 KR 2010000794 W KR2010000794 W KR 2010000794W WO 2011099654 A1 WO2011099654 A1 WO 2011099654A1
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WO
WIPO (PCT)
Prior art keywords
main gear
central axis
main
gear
driver
Prior art date
Application number
PCT/KR2010/000794
Other languages
French (fr)
Korean (ko)
Inventor
김종필
Original Assignee
Kim Jong-Phil
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Jong-Phil filed Critical Kim Jong-Phil
Priority to PCT/KR2010/000794 priority Critical patent/WO2011099654A1/en
Publication of WO2011099654A1 publication Critical patent/WO2011099654A1/en

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Classifications

    • 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
    • B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
    • 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
    • B25B15/00—Screwdrivers
    • B25B15/02—Screwdrivers operated by rotating the handle
    • 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
    • B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
    • B25B17/02—Hand-driven gear-operated wrenches or screwdrivers providing for torque amplification

Definitions

  • the present invention relates to a driver, and more particularly, to a driver that can be fastened or disassembled from an object by rotating a screw or the like.
  • a screwdriver is a tool that fastens or disengages from an object by providing a rotating torque to a screw, etc.
  • a screwdriver or a cross screwdriver is widely used.
  • the conventional driver 30 is fixedly coupled to the other end of the driver bit 10 and the driver bit 10, one end of which is inserted into a straight groove or cross groove formed in the head of the screw and rotates.
  • a handle 20 which can be operated by a user to provide a rotational torque so that the screw can be fastened or disengaged from the object.
  • Such a conventional driver 30 has a rotation speed at which a user rotates the driver 30 when operating the driver 30 and a rotation speed of the driver bit 10 correspondingly rotated, and consequently, the driver bit 10. ),
  • the rotational speed of the screw is the same, so if the screw is to be fastened at a high speed, the work efficiency is reduced.
  • An object of the present invention is to provide a driver that allows a user to select a case where adjustment of the rotation speed is required and a case where a large rotation torque is required.
  • the front body having a first main gear on the inside;
  • a rear body having a second main gear disposed coaxially with the first main gear inside;
  • a connection ring disposed between the first main gear and the second main gear and having at least one support on an outer circumferential surface thereof;
  • At least one side gear inserted into the support part and provided to be meshed with the first main gear and the second main gear at right angles;
  • a center shaft coupled to a driver bit through a groove formed at one end thereof, the other side of which is inserted through a hole formed at a center of the first main gear, the connection ring and the second main gear, and which is slidable in an axial direction;
  • an elastic member for providing an elastic force such that the central axis is directed from the contracted position to the restored position.
  • the central axis has a circular cross section
  • the other end of the cross section is in the shape of a polygon
  • the hole formed in the connection ring is formed to correspond to the shape of the cross section of the other end of the central axis is always engaged
  • the second main gear The formed hole may be formed to correspond to a shape of a cross section of the other end of the central axis, and may be provided to selectively engage the second main gear with the central axis according to sliding of the central axis.
  • the central axis may further include a switch for fixing the central axis at each position, when sliding to the retracted position and the restoring position.
  • the central axis, a pair of fixing grooves are formed along the outer circumferential surface, the switch may include a leaf spring formed with a locking projection at the end to correspond to the fixing groove.
  • the rear end of the rear body may further include an idle ring to facilitate the rotation of the front body.
  • the driver of the present invention can select a case where adjustment of the rotation speed is required and a case where a large rotation torque is required, thereby improving work efficiency.
  • FIG. 1 is a perspective view showing a conventional driver.
  • FIG. 2 is a partial cross-sectional side view of a driver according to an embodiment of the present invention.
  • FIG. 3 is a partial cross-sectional rear view of the driver of FIG. 2.
  • FIG. 4 is a partial cross-sectional front view of the driver of FIG. 2.
  • FIG. 5 is a cross-sectional view taken along the line A-A shown in FIG.
  • FIG. 6 is a side view illustrating a coupling relationship between first and second main gears and side gears of FIG. 2.
  • FIG. 7 is a cross-sectional view taken along line B-B shown in FIG. 6.
  • FIG. 8 is a partial cross-sectional perspective view of the driver in the restored position.
  • FIG. 9 is a partial cross-sectional perspective view of the driver in the retracted position.
  • FIG. 2 is a partial cross-sectional side view of the driver according to an embodiment of the present invention
  • FIG. 3 is a partial cross-sectional rear view of the driver of FIG. 2
  • FIG. 4 is a partial cross-sectional front view of the driver of FIG. 2
  • FIG. 5 is shown in FIG. 4.
  • 6 is a side view illustrating a coupling relationship between the first and second main gears and the side gears of FIG. 2
  • FIG. 7 is a cross-sectional view taken along the line BB of FIG. 6.
  • the front body 100, the rear body 200, the connection ring 300, the side gear 400, the central axis 500 and the elastic member 600 do.
  • the front body 100 has a first main gear 110 therein.
  • the rear body 200 also includes a second main gear 210 disposed coaxially with the first main gear 110 therein.
  • the first main gear 100 and the second main gear 210 are in the form of a bevel gear to be engaged with the side gear 400 to be described later at right angles.
  • the rear end of the rear body 200 further includes an idle ring (Idel ring) (800) to smoothly rotate the front body (100). Since the idle ring 800 is idling, the palm makes contact with the idle ring 800, and the rotation of the front body 100 is easy.
  • Idel ring idle ring
  • connection ring 300 is disposed between the first main gear 110 and the second main gear 210, and has at least one support part 310 on an outer circumferential surface thereof. 6 and 7 show that the support unit 310 is provided with a total of three.
  • the side gears 400 are respectively inserted into the support part 310 and provided to be meshed with the first main gear 110 and the second main gear 210 at right angles.
  • the side gear 400 also has a bevel gear like the first main gear 100 and the second main gear 210. 6 and 7, the support part 310 is provided with a total of three, and three side gears 400 are also provided.
  • the driver bit DB is coupled to the central axis 500 through the groove 510 formed at one end thereof.
  • the other side of the central shaft 500 may include a hole 110h formed at the center of the first main gear 110, a hole 300h formed at the center of the connection ring 300, and the second main gear 210. Is inserted through the hole 210h formed in the center of the structure is slidable in the axial direction.
  • the central axis 500 has a circular cross section, and the cross section of the other end 520 has a polygonal shape.
  • the hole 110h formed at the center of the first main gear 110 is circular
  • the hole 300h formed at the center of the connection ring 300 and the hole 210h formed at the second main gear 210 are formed.
  • Is formed in a polygon so as to correspond to the shape of the cross section of the other end 520 of the central axis 500.
  • the hole 300h formed in the connection ring 300 always rotates in engagement with the central axis 500, but the hole 210h formed in the second main gear 210 slides in the central axis 500.
  • the other end 520 of the central axis 500 may or may not be selectively engaged with. 7 shows an example in which the polygon is a hexagon.
  • the elastic member 600 provides an elastic force such that the central axis 500 faces the restoration position RP at the contraction position SP.
  • the contracted position SP refers to a position at which the second main gear 210 and the central axis 500 are engaged with each other
  • the restored position RP refers to the second main gear 210. It means a position where the central axis 500 is not engaged.
  • the switch 700 when the central axis 500 is slid to the contraction position (SP) and the restoring position (RP), the switch 700 is provided to fix the central axis 500 in each position.
  • a pair of fixing grooves 530 are formed along the outer circumferential surface of the central axis 500 for the operation of the switch 700, and the switch 700 corresponds to the fixing groove 530 so as to be caught at an end thereof.
  • the leaf protrusion 710a includes a leaf spring 710 formed therein.
  • FIG. 8 is a partial cross-sectional perspective view of the driver in the retracted position
  • FIG. 9 is a partial cross-sectional perspective view of the driver in the retracted position.
  • the central axis 500 is a restoring position RP, that is, a position where the second main gear 210 and the central axis 500 are not engaged will be described.
  • the locking projection 710a of the leaf spring 710 is located in the fixing groove 530 at the rear of the pair of fixing grooves 530.
  • the first main gear 110 When the user makes the idle ring 800 touches the palm and rotates the front body 100 in a predetermined direction, the first main gear 110 therein rotates together. At this time, since the first main gear 110 and the central shaft 500 is idling, the rotational force is not transmitted to the central shaft 500.
  • the side gear 400 meshed with the first main gear 110 at right angles also rotates.
  • the connection ring 300 connected to the side gear 400 rotates, and the central axis 500 engaged by the same cross section as the connection ring 300 rotates.
  • the second main gear 210 engaged with the side gear 400 at a right angle also rotates in a reverse direction.
  • the gear ratio of the first main gear 110 and the side gear 400 is 2: 1.
  • the rear body 200 coupled with the second main gear 210 also rotates.
  • the gear ratio of the first main gear 110 and the second main gear 210 is 1: 1.
  • the front body 100 rotates once because the central shaft 500 is not directly connected to the first main gear 110 and is indirectly connected to the side gear 400 and the connection ring 300.
  • the gear ratio the central axis 500 is to rotate two.
  • the rear body 200 is rotated but does not have any effect on the rotation of the central axis (500).
  • the central axis 500 is the contracted position SP, that is, the position where the second main gear 210 and the central axis 500 are engaged with each other will be described.
  • the central axis 500 when the central axis 500 is in the restoring position RP and a very large rotational torque is required, the central axis 500 is pushed in the axial direction to naturally move to the contracted position SP. Of course, if the force in the vertical direction is forcibly moved, the central axis 500 can be easily moved to the contracted position SP.
  • the locking protrusion 710a of the leaf spring 710 is located in the front fixing groove 530 of the pair of fixing grooves 530.
  • the polygonal hole 210h formed in the second main gear 210 is engaged with the polygonal cross section of the other end 520 of the central axis 500.
  • the second main gear 210 and the central axis 500 are engaged.
  • the first main gear 110 and the second main gear 210 which are simultaneously engaged with the side gear 400 are in opposite directions. It cannot be rotated because it is trying to rotate. That is, the front body 100 and the rear body 200 is locked because of the property to rotate in the opposite direction to each other.
  • the obstacle of the leaf spring 710 Group 710a is away from the front fixing groove 530.
  • the elastic member 600 has a central axis 500 facing the restoration position RP at the contracted position SP. It provides an elastic force so as to, the locking projection 710a is moved to the rear fixing groove 530, the central axis 500 is moved to the restoring position (RP).
  • the user can select the case that needs to adjust the rotational speed of the driver (D) and the case that requires a large rotational torque can improve the work efficiency.

Abstract

The present invention relates to a driver. The driver comprises: a front body in which a first main gear is provided; a rear body in which a second main gear is disposed coaxially to the first main gear; a connection ring disposed between the first and second main gears and including at least one support part on the outer surface thereof; at least one side gear inserted in the support part and engaging with the first and second main gears to form a right angle with each of the first and second main gears; a main axle; and an elastic member. A driver bit is coupled to the main axle through a groove formed in one end of the main axle, and the main axle is slidable when the other end of the main axle is inserted into the center holes of the first main gear, the connection ring, and the second main gear. The elastic member applies an elastic force to the main axle so that the main axle can return to an original position from a retracted position. Therefore, a user can select an RPM adjustment mode and a torque adjustment mode, and thus operating efficiency can be improved.

Description

드라이버driver
본 발명은 드라이버에 관한 것으로서, 보다 상세하게는 나사 등을 회전시켜 대상체로부터 체결 또는 해체할 수 있는 드라이버에 관한 것이다.The present invention relates to a driver, and more particularly, to a driver that can be fastened or disassembled from an object by rotating a screw or the like.
일반적으로, 드라이버는 나사(Screw) 등에 회전토크를 제공하여 대상체로부터 체결 또는 해체시키는 공구로서, 일자드라이버 또는 십자드라이버 등이 널리 사용되고 있다.In general, a screwdriver is a tool that fastens or disengages from an object by providing a rotating torque to a screw, etc., and a screwdriver or a cross screwdriver is widely used.
종래의 드라이버는 도 1에 도시된 것과 같은 구조가 일반적으로 채용되었다. 도면을 참조하면, 종래의 드라이버(30)는 일단부가 나사의 두부에 형성된 일자홈 또는 십자홈에 삽입되고 축회전을 하는 드라이버비트(10)와, 이 드라이버비트(10)의 타단부에 고정결합되고 사용자가 조작하여 나사가 대상체로부터 체결 또는 해체되도록 회전토크를 제공할 수 있는 손잡이(20)를 포함한다.In the conventional driver, a structure as shown in FIG. 1 is generally employed. Referring to the drawings, the conventional driver 30 is fixedly coupled to the other end of the driver bit 10 and the driver bit 10, one end of which is inserted into a straight groove or cross groove formed in the head of the screw and rotates. And a handle 20 which can be operated by a user to provide a rotational torque so that the screw can be fastened or disengaged from the object.
이러한 종래의 드라이버(30)는, 드라이버(30)를 조작할 때 사용자가 드라이버(30)를 회전시키는 회전속도와 이에 대응하여 회전되는 드라이버비트(10)의 회전속도, 결과적으로는 드라이버비트(10)와 연결되는 나사와의 회전속도가 동일하기 때문에, 회전속도를 빨리하여 신속하게 나사를 체결해야되는 경우에는 작업능률이 저하된다.Such a conventional driver 30 has a rotation speed at which a user rotates the driver 30 when operating the driver 30 and a rotation speed of the driver bit 10 correspondingly rotated, and consequently, the driver bit 10. ), The rotational speed of the screw is the same, so if the screw is to be fastened at a high speed, the work efficiency is reduced.
한편, 최근의 드라이버 중에서 기어비에 의해 드라이버의 회전속도와 드라이버비트의 회전속도의 비를 다르게 한 드라이버도 있지만, 이러한 드라이버는 큰 회전토크의 제공이 필요한 경우에는 도 1의 드라이버에 비해 불리한 면이 있다.On the other hand, some drivers have different ratios of the rotational speed of the driver and the rotational speed of the driver bit according to the gear ratio, but such a driver has disadvantages compared to the driver of FIG. 1 when a large rotational torque is required. .
본 발명은 사용자가 회전속도의 조절이 필요한 경우와 큰 회전토크가 필요한 경우를 선택할 수 있는 드라이버를 제공하는데 목적이 있다.An object of the present invention is to provide a driver that allows a user to select a case where adjustment of the rotation speed is required and a case where a large rotation torque is required.
본 발명은, 내측에 제1 주기어를 구비한 전방몸체; 내측에 상기 제1 주기어와 동축상에 배치된 제2 주기어를 구비한 후방몸체; 상기 제1 주기어와 상기 제2 주기어의 사이에 배치되며, 외주면에 적어도 하나 이상의 지지부를 구비한 연결링; 상기 지지부에 삽입되며, 상기 제1 주기어 및 상기 제2 주기어와 각각 직각으로 치합되도록 구비되는 적어도 하나 이상의 사이드기어; 일단에 형성된 홈을 통해 드라이버비트가 결합되고, 타측이 상기 제1 주기어, 상기 연결링 및 상기 제2 주기어의 중심에 각각 형성된 홀을 관통하여 삽입되어 축방향으로 슬라이딩이 가능한 중심축; 및 상기 중심축이 수축위치에서 복원위치를 향하도록 탄성력을 제공하는 탄성부재를 포함하는 드라이버를 제공한다.The present invention, the front body having a first main gear on the inside; A rear body having a second main gear disposed coaxially with the first main gear inside; A connection ring disposed between the first main gear and the second main gear and having at least one support on an outer circumferential surface thereof; At least one side gear inserted into the support part and provided to be meshed with the first main gear and the second main gear at right angles; A center shaft coupled to a driver bit through a groove formed at one end thereof, the other side of which is inserted through a hole formed at a center of the first main gear, the connection ring and the second main gear, and which is slidable in an axial direction; And an elastic member for providing an elastic force such that the central axis is directed from the contracted position to the restored position.
여기서, 상기 중심축은 단면이 원형이되, 타단의 단면은 다각형의 형상을 하고, 상기 연결링에 형성된 홀은 상기 중심축의 타단의 단면의 형상에 대응되도록 형성되어 항상 맞물리며, 상기 제2 주기어에 형성된 홀은 상기 중심축의 타단의 단면의 형상에 대응되도록 형성되어, 중심축의 슬라이딩에 따라 상기 제2 주기어와 상기 중심축이 선택적으로 맞물리도록 제공할 수 있다.Here, the central axis has a circular cross section, the other end of the cross section is in the shape of a polygon, the hole formed in the connection ring is formed to correspond to the shape of the cross section of the other end of the central axis is always engaged, the second main gear The formed hole may be formed to correspond to a shape of a cross section of the other end of the central axis, and may be provided to selectively engage the second main gear with the central axis according to sliding of the central axis.
아울러, 상기 중심축이 수축위치 및 복원위치로 슬라이딩할 때, 각각의 위치에서 중심축을 고정시키는 스위치를 더 포함할 수 있다. 나아가, 상기 중심축은, 외주면을 따라 한 쌍의 고정홈이 형성되고, 상기 스위치는, 상기 고정홈에 대응되어 걸리도록 단부에 걸림돌기가 형성된 판 스프링을 포함할 수 있다.In addition, the central axis may further include a switch for fixing the central axis at each position, when sliding to the retracted position and the restoring position. Further, the central axis, a pair of fixing grooves are formed along the outer circumferential surface, the switch may include a leaf spring formed with a locking projection at the end to correspond to the fixing groove.
또한, 상기 후방몸체의 후단에는, 상기 전방몸체의 회전을 원활하게 할 수 있도록 아이들 링을 더 포함할 수 있다.In addition, the rear end of the rear body, may further include an idle ring to facilitate the rotation of the front body.
본 발명의 드라이버는, 회전속도의 조절이 필요한 경우와 큰 회전토크가 필요한 경우를 사용자가 선택할 수 있어 작업능률을 향상시킬 수 있다.The driver of the present invention can select a case where adjustment of the rotation speed is required and a case where a large rotation torque is required, thereby improving work efficiency.
도 1은 종래의 드라이버를 나타낸 사시도이다.1 is a perspective view showing a conventional driver.
도 2는 본 발명의 실시예에 따른 드라이버의 부분 단면 측면도이다.2 is a partial cross-sectional side view of a driver according to an embodiment of the present invention.
도 3은 도 2의 드라이버의 부분 단면 배면도이다.3 is a partial cross-sectional rear view of the driver of FIG. 2.
도 4는 도 2의 드라이버의 부분 단면 정면도이다.4 is a partial cross-sectional front view of the driver of FIG. 2.
도 5는 도 4에 도시된 A-A선에 따른 단면도이다.5 is a cross-sectional view taken along the line A-A shown in FIG.
도 6은 도 2의 제1 및 제2 주기어, 사이드기어의 결합관계를 나타낸 측면도이다.FIG. 6 is a side view illustrating a coupling relationship between first and second main gears and side gears of FIG. 2.
도 7은 도 6에 도시된 B-B선에 따른 단면도이다.FIG. 7 is a cross-sectional view taken along line B-B shown in FIG. 6.
도 8은 복원위치에서의 드라이버를 나타낸 부분 단면 사시도이다.8 is a partial cross-sectional perspective view of the driver in the restored position.
도 9는 수축위치에서의 드라이버를 나타낸 부분 단면 사시도이다.9 is a partial cross-sectional perspective view of the driver in the retracted position.
도 2는 본 발명의 실시예에 따른 드라이버의 부분 단면 측면도, 도 3은 도 2의 드라이버의 부분 단면 배면도, 도 4는 도 2의 드라이버의 부분 단면 정면도, 도 5는 도 4에 도시된 A-A선에 따른 단면도, 도 6은 도 2의 제1 및 제2 주기어, 사이드기어의 결합관계를 나타낸 측면도, 도 7은 도 6에 도시된 B-B선에 따른 단면도이다.2 is a partial cross-sectional side view of the driver according to an embodiment of the present invention, FIG. 3 is a partial cross-sectional rear view of the driver of FIG. 2, FIG. 4 is a partial cross-sectional front view of the driver of FIG. 2, and FIG. 5 is shown in FIG. 4. 6 is a side view illustrating a coupling relationship between the first and second main gears and the side gears of FIG. 2, and FIG. 7 is a cross-sectional view taken along the line BB of FIG. 6.
본 발명의 실시예에 따른 드라이버(D)는, 전방몸체(100), 후방몸체(200), 연결링(300), 사이드기어(400), 중심축(500) 및 탄성부재(600)를 포함한다.Driver D according to an embodiment of the present invention, the front body 100, the rear body 200, the connection ring 300, the side gear 400, the central axis 500 and the elastic member 600 do.
상기 전방몸체(100)는 그 내측에 제1 주기어(110)를 구비한다. 상기 후방몸체(200) 역시 그 내측에 상기 제1 주기어(110)와 동축상에 배치된 제2 주기어(210)를 구비한다. 상기 제1 주기어(100)와 상기 제2 주기어(210)는 후술할 사이드기어(400)와 직각으로 치합하기 위해 베벨 기어(Bevel gear)의 형태를 하고 있다. 또한, 상기 후방몸체(200)의 후단에는 상기 전방몸체(100)의 회전을 원활하게 할 수 있도록 아이들 링(Idel ring; 800)을 더 포함한다. 상기 아이들 링(800)이 공회전을 하기 때문에 손바닥으로 상기 아이들 링(800)을 닿게 하고, 상기 전방몸체(100)의 회전이 손쉬워진다.The front body 100 has a first main gear 110 therein. The rear body 200 also includes a second main gear 210 disposed coaxially with the first main gear 110 therein. The first main gear 100 and the second main gear 210 are in the form of a bevel gear to be engaged with the side gear 400 to be described later at right angles. In addition, the rear end of the rear body 200 further includes an idle ring (Idel ring) (800) to smoothly rotate the front body (100). Since the idle ring 800 is idling, the palm makes contact with the idle ring 800, and the rotation of the front body 100 is easy.
상기 연결링(300)은 상기 제1 주기어(110)와 상기 제2 주기어(210)의 사이에 배치되며, 외주면에 적어도 하나 이상의 지지부(310)를 구비한다. 도 6 및 도 7에는 상기 지지부(310)가 총 3개가 구비된 것이 도시되어 있다. The connection ring 300 is disposed between the first main gear 110 and the second main gear 210, and has at least one support part 310 on an outer circumferential surface thereof. 6 and 7 show that the support unit 310 is provided with a total of three.
상기 사이드기어(400)는 상기 지지부(310)에 각각 삽입되며, 상기 제1 주기어(110) 및 상기 제2 주기어(210)와 각각 직각으로 치합되도록 구비된다. 상기 사이드기어(400) 역시 상기 제1 주기어(100)와 상기 제2 주기어(210)처럼 베벨 기어의 형태를 하고 있다. 도 6 및 도 7에는 상기 지지부(310)가 총 3개가 구비되어 사이드기어(400)도 3개가 구비된 것이 도시되어 있다.The side gears 400 are respectively inserted into the support part 310 and provided to be meshed with the first main gear 110 and the second main gear 210 at right angles. The side gear 400 also has a bevel gear like the first main gear 100 and the second main gear 210. 6 and 7, the support part 310 is provided with a total of three, and three side gears 400 are also provided.
상기 중심축(500)은 그 일단에 형성된 홈(510)을 통해 드라이버비트(DB)가 결합된다. 또한, 상기 중심축(500)의 타측은 상기 제1 주기어(110)의 중심에 형성된 홀(110h), 연결링(300)의 중심에 형성된 홀(300h) 및 상기 제2 주기어(210)의 중심에 형성된 홀(210h)을 관통하여 삽입되어 축방향으로 슬라이딩이 가능한 구조로 되어 있다.The driver bit DB is coupled to the central axis 500 through the groove 510 formed at one end thereof. The other side of the central shaft 500 may include a hole 110h formed at the center of the first main gear 110, a hole 300h formed at the center of the connection ring 300, and the second main gear 210. Is inserted through the hole 210h formed in the center of the structure is slidable in the axial direction.
더 자세히 설명하면, 상기 중심축(500)은 단면이 원형이되, 타단(520)의 단면은 다각형의 형상을 한다. 또한, 상기 제1 주기어(110)의 중심에 형성된 홀(110h)은 원형이지만, 상기 연결링(300)의 중심에 형성된 홀(300h)과 상기 제2 주기어(210)에 형성된 홀(210h)은 상기 중심축(500)의 타단(520)의 단면의 형상에 대응되도록 다각형으로 형성된다. 다만, 상기 연결링(300)에 형성된 홀(300h)은 상기 중심축(500)과 항상 맞물려서 회전하지만, 상기 제2 주기어(210)에 형성된 홀(210h)은 상기 중심축(500)의 슬라이딩에 따라 상기 중심축(500)의 타단(520)과 선택적으로 맞물릴 수도, 맞물리지 않을 수도 있게 된다. 도 7에는 다각형이 6각형인 예가 도시되어 있다.In more detail, the central axis 500 has a circular cross section, and the cross section of the other end 520 has a polygonal shape. In addition, although the hole 110h formed at the center of the first main gear 110 is circular, the hole 300h formed at the center of the connection ring 300 and the hole 210h formed at the second main gear 210 are formed. ) Is formed in a polygon so as to correspond to the shape of the cross section of the other end 520 of the central axis 500. However, the hole 300h formed in the connection ring 300 always rotates in engagement with the central axis 500, but the hole 210h formed in the second main gear 210 slides in the central axis 500. In accordance with, the other end 520 of the central axis 500 may or may not be selectively engaged with. 7 shows an example in which the polygon is a hexagon.
상기 탄성부재(600)는 상기 중심축(500)이 수축위치(SP)에서 복원위치(RP)를 향하도록 탄성력을 제공한다. 여기서, 상기 수축위치(SP)란 앞서 설명한 상기 제2 주기어(210)와 상기 중심축(500)이 맞물리는 위치를 의미하고, 상기 복원위치(RP)란 상기 제2 주기어(210)와 상기 중심축(500)이 맞물리지 않는 위치를 의미한다.The elastic member 600 provides an elastic force such that the central axis 500 faces the restoration position RP at the contraction position SP. Here, the contracted position SP refers to a position at which the second main gear 210 and the central axis 500 are engaged with each other, and the restored position RP refers to the second main gear 210. It means a position where the central axis 500 is not engaged.
이렇게 상기 중심축(500)이 수축위치(SP) 및 복원위치(RP)로 슬라이딩할 때, 각각의 위치에서 상기 중심축(500)을 고정시키기 위해 스위치(700)가 구비된다. 상기 스위치(700)의 작동을 위해 상기 중심축(500)에는 외주면을 따라 한 쌍의 고정홈(530)이 형성되고, 상기 스위치(700)는 상기 고정홈(530)에 대응되어 걸리도록 단부에 걸림돌기(710a)가 형성된 판 스프링(710)을 포함한다.In this way, when the central axis 500 is slid to the contraction position (SP) and the restoring position (RP), the switch 700 is provided to fix the central axis 500 in each position. A pair of fixing grooves 530 are formed along the outer circumferential surface of the central axis 500 for the operation of the switch 700, and the switch 700 corresponds to the fixing groove 530 so as to be caught at an end thereof. The leaf protrusion 710a includes a leaf spring 710 formed therein.
이하, 본 발명의 실시예에 따른 드라이버의 작동원리에 대해 설명한다. 도 8은 복원위치에서의 드라이버를 나타낸 부분 단면 사시도, 도 9는 수축위치에서의 드라이버를 나타낸 부분 단면 사시도이다.Hereinafter, the operating principle of the driver according to the embodiment of the present invention will be described. 8 is a partial cross-sectional perspective view of the driver in the retracted position, and FIG. 9 is a partial cross-sectional perspective view of the driver in the retracted position.
먼저, 도 8을 참조하여 상기 중심축(500)이 복원위치(RP), 즉 상기 제2 주기어(210)와 상기 중심축(500)이 맞물리지 않는 위치일 경우에 대해 설명한다.First, a case in which the central axis 500 is a restoring position RP, that is, a position where the second main gear 210 and the central axis 500 are not engaged will be described.
상기 중심축(500)이 복원위치(RP)일 때에는 한 쌍의 고정홈(530) 중에서 뒤쪽에 있는 고정홈(530)에 판 스프링(710)의 걸림돌기(710a)가 위치한다.When the central axis 500 is the restoring position (RP), the locking projection 710a of the leaf spring 710 is located in the fixing groove 530 at the rear of the pair of fixing grooves 530.
사용자가 상기 아이들 링(800)을 손바닥과 닿게 하고, 상기 전방몸체(100)를 일정한 방향으로 회전시키면 그 내부에 있는 상기 제1 주기어(110)가 함께 회전된다. 이때, 상기 제1 주기어(110)와 상기 중심축(500)은 공회전을 하기 때문에 상기 중심축(500)으로 회전력은 전달되지 않는다. 상기 제1 주기어(110)가 회전하면, 상기 제1 주기어(110)와 직각으로 치합된 상기 사이드기어(400) 역시 회전하게 된다. 그리고, 상기 사이드기어(400)가 회전하면 상기 사이드기어(400)와 연결된 상기 연결링(300)이 회전하고, 상기 연결링(300)과 동일한 단면에 의해 맞물린 상기 중심축(500)이 회전하게 되며, 아울러 상기 사이드기어(400)와 직각으로 치합된 상기 제2 주기어(210) 역시 역방향으로 회전하게 된다. 상기 제1 주기어(110)와 상기 사이드기어(400)의 기어비는 2:1을 예를 든다. 상기 제2 주기어(210)가 회전하면 상기 제2 주기어(210)와 결합된 상기 후방몸체(200) 역시 회전한다. 상기 제1 주기어(110)와 상기 제2 주기어(210)의 기어비는 1:1이다. 상기 중심축(500)이 상기 제1 주기어(110)와 바로 연결되지 않고, 상기 사이드기어(400) 및 상기 연결링(300)과 간접적으로 연결되기 때문에 상기 전방몸체(100)가 1회전하면, 기어비에 의해 상기 중심축(500)은 2회전하게 된다. 반면, 상기 후방몸체(200)는 회전하지만 상기 중심축(500)의 회전에는 아무런 영향을 미치지 못한다. When the user makes the idle ring 800 touches the palm and rotates the front body 100 in a predetermined direction, the first main gear 110 therein rotates together. At this time, since the first main gear 110 and the central shaft 500 is idling, the rotational force is not transmitted to the central shaft 500. When the first main gear 110 rotates, the side gear 400 meshed with the first main gear 110 at right angles also rotates. When the side gear 400 rotates, the connection ring 300 connected to the side gear 400 rotates, and the central axis 500 engaged by the same cross section as the connection ring 300 rotates. In addition, the second main gear 210 engaged with the side gear 400 at a right angle also rotates in a reverse direction. For example, the gear ratio of the first main gear 110 and the side gear 400 is 2: 1. When the second main gear 210 rotates, the rear body 200 coupled with the second main gear 210 also rotates. The gear ratio of the first main gear 110 and the second main gear 210 is 1: 1. When the front body 100 rotates once because the central shaft 500 is not directly connected to the first main gear 110 and is indirectly connected to the side gear 400 and the connection ring 300. By the gear ratio, the central axis 500 is to rotate two. On the other hand, the rear body 200 is rotated but does not have any effect on the rotation of the central axis (500).
이렇게 상기 중심축(500)이 복원위치(RP)에 있을 때에는 상기 전방몸체(100)의 회전속도보다 상기 중심축(500)의 회전속도가 더 빠르기 때문에 효율적인 드라이버의 조작이 가능하다. In this way, when the central axis 500 is in the restoring position (RP), since the rotation speed of the central axis 500 is faster than the rotation speed of the front body 100, efficient driver operation is possible.
다음으로, 도 9를 참조하여 상기 중심축(500)이 수축위치(SP), 즉 상기 제2 주기어(210)와 상기 중심축(500)이 맞물리는 위치일 경우에 대해 설명한다.Next, a case in which the central axis 500 is the contracted position SP, that is, the position where the second main gear 210 and the central axis 500 are engaged with each other will be described.
앞서 설명한 대로, 상기 중심축(500)이 복원위치(RP)에 있다가 매우 큰 회전토크가 필요하게 되면 상기 중심축(500)이 축방향으로 밀려서 자연스럽게 수축위치(SP)로 이동된다. 물론 강제로 수직방향의 힘을 주면 상기 중심축(500)은 쉽게 수축위치(SP)로 이동가능하다. 상기 중심축(500)이 수축위치(SP)일 때에는 한 쌍의 고정홈(530) 중에서 앞쪽에 있는 고정홈(530)에 판 스프링(710)의 걸림돌기(710a)가 위치한다.As described above, when the central axis 500 is in the restoring position RP and a very large rotational torque is required, the central axis 500 is pushed in the axial direction to naturally move to the contracted position SP. Of course, if the force in the vertical direction is forcibly moved, the central axis 500 can be easily moved to the contracted position SP. When the central shaft 500 is in the contracted position SP, the locking protrusion 710a of the leaf spring 710 is located in the front fixing groove 530 of the pair of fixing grooves 530.
이렇게 상기 중심축(500)이 수축위치(SP)로 이동하면, 상기 제2 주기어(210)에 형성된 다각형의 홀(210h)은 상기 중심축(500)의 타단(520)의 다각형 단면과 맞물려 상기 제2 주기어(210)와 상기 중심축(500)이 맞물리게 된다.When the central axis 500 moves to the contracted position SP, the polygonal hole 210h formed in the second main gear 210 is engaged with the polygonal cross section of the other end 520 of the central axis 500. The second main gear 210 and the central axis 500 are engaged.
이렇게 상기 제2 주기어(210)와 상기 중심축(500)이 맞물리면, 상기 사이드기어(400)에 동시에 맞물려 있는 상기 제1 주기어(110)와 상기 제2 주기어(210)는 서로 역방향으로 회전하려고 하기 때문에 회전될 수 없다. 즉, 상기 전방몸체(100)와 상기 후방몸체(200)는 서로 반대방향으로 회전하려는 성질 때문에 로킹(locking) 상태가 된다. When the second main gear 210 and the central axis 500 are engaged with each other, the first main gear 110 and the second main gear 210 which are simultaneously engaged with the side gear 400 are in opposite directions. It cannot be rotated because it is trying to rotate. That is, the front body 100 and the rear body 200 is locked because of the property to rotate in the opposite direction to each other.
이렇게 상기 중심축(500)이 수축위치(SP)에 있을 때에는 상기 전방몸체(100)와 상기 후방몸체(200)가 별도로 회전될 수 없는 일체가 되므로 큰 회전토크가 필요한 마무리 드라이버 작업에 최적화된 상태가 된다.When the central axis 500 is in the contracted position (SP), the front body 100 and the rear body 200 can not be rotated separately, so it is a state optimized for finishing driver work requiring large rotational torque. Becomes
한편, 나사의 체결이 끝나고 다시 새로운 나사를 체결하기 위해 드라이버(D)를 다시 복원위치(RP)로 이동시키기 위해 상기 스위치(700)의 버튼(720)을 누르면, 상기 판 스프링(710)의 걸림돌기(710a)가 앞쪽 고정홈(530)으로부터 멀어진다. 이렇게 상기 판 스프링(710)의 걸림돌기(710a)가 앞쪽 고정홈(530)으로부터 멀어지면, 상기 탄성부재(600)는 중심축(500)이 수축위치(SP)에서 복원위치(RP)를 향하도록 탄성력을 제공하고, 상기 걸림돌기(710a)가 뒷쪽 고정홈(530)으로 이동하며, 상기 중심축(500)은 복원위치(RP)로 이동한다.Meanwhile, when the screw is finished, pressing the button 720 of the switch 700 to move the driver D back to the restoring position RP in order to tighten the new screw again, the obstacle of the leaf spring 710 Group 710a is away from the front fixing groove 530. When the locking projection 710a of the leaf spring 710 moves away from the front fixing groove 530 in this way, the elastic member 600 has a central axis 500 facing the restoration position RP at the contracted position SP. It provides an elastic force so as to, the locking projection 710a is moved to the rear fixing groove 530, the central axis 500 is moved to the restoring position (RP).
이렇게 본 발명의 실시예에 따르면, 드라이버(D)의 회전속도의 조절이 필요한 경우와 큰 회전토크가 필요한 경우를 사용자가 선택할 수 있어 작업능률을 향상시킬 수 있다.Thus, according to the embodiment of the present invention, the user can select the case that needs to adjust the rotational speed of the driver (D) and the case that requires a large rotational torque can improve the work efficiency.
본 발명은 도면에 도시된 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (5)

  1. 내측에 제1 주기어를 구비한 전방몸체;A front body having a first main gear inward;
    내측에 상기 제1 주기어와 동축상에 배치된 제2 주기어를 구비한 후방몸체; A rear body having a second main gear disposed coaxially with the first main gear inside;
    상기 제1 주기어와 상기 제2 주기어의 사이에 배치되며, 외주면에 적어도 하나 이상의 지지부를 구비한 연결링;A connection ring disposed between the first main gear and the second main gear and having at least one support on an outer circumferential surface thereof;
    상기 지지부에 삽입되며, 상기 제1 주기어 및 상기 제2 주기어와 각각 직각으로 치합되도록 구비되는 적어도 하나 이상의 사이드기어; At least one side gear inserted into the support part and provided to be meshed with the first main gear and the second main gear at right angles;
    일단에 형성된 홈을 통해 드라이버비트가 결합되고, 타측이 상기 제1 주기어, 상기 연결링 및 상기 제2 주기어의 중심에 각각 형성된 홀을 관통하여 삽입되어 축방향으로 슬라이딩이 가능한 중심축; 및A center shaft coupled to a driver bit through a groove formed at one end thereof, the other side of which is inserted through a hole formed at a center of the first main gear, the connection ring and the second main gear, and which is slidable in an axial direction; And
    상기 중심축이 수축위치에서 복원위치를 향하도록 탄성력을 제공하는 탄성부재를 포함하는 드라이버.And an elastic member for providing an elastic force such that the central axis is directed from the contracted position to the restored position.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 중심축은 단면이 원형이되, 타단의 단면은 다각형의 형상을 하고,The central axis has a circular cross section, the other end has a polygonal shape,
    상기 연결링에 형성된 홀은 상기 중심축의 타단의 단면의 형상에 대응되도록 형성되어 항상 맞물리며,The hole formed in the connection ring is formed to correspond to the shape of the cross section of the other end of the central axis is always engaged,
    상기 제2 주기어에 형성된 홀은 상기 중심축의 타단의 단면의 형상에 대응되도록 형성되어, 중심축의 슬라이딩에 따라 상기 제2 주기어와 상기 중심축이 선택적으로 맞물리도록 제공되는 것을 특징으로 하는 드라이버.The hole formed in the second main gear is formed so as to correspond to the shape of the cross section of the other end of the central axis, it characterized in that provided with the second main gear and the central axis to selectively engage in accordance with the sliding of the central axis.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 중심축이 수축위치 및 복원위치로 슬라이딩할 때, 각각의 위치에서 중심축을 고정시키는 스위치를 더 포함하는 것을 특징으로 하는 드라이버.And a switch for holding the central axis at each position when the central axis slides to the retracted and retracted positions.
  4. 청구항 3에 있어서,The method according to claim 3,
    상기 중심축은, 외주면을 따라 한 쌍의 고정홈이 형성되고,The central axis, a pair of fixing grooves are formed along the outer peripheral surface,
    상기 스위치는, 상기 고정홈에 대응되어 걸리도록 단부에 걸림돌기가 형성된 판 스프링을 포함하는 것을 특징으로 하는 드라이버.The switch is characterized in that it comprises a leaf spring formed with a locking projection at the end to correspond to the fixing groove.
  5. 청구항 1에 있어서,The method according to claim 1,
    상기 후방몸체의 후단에는,At the rear end of the rear body,
    상기 전방몸체의 회전을 원활하게 할 수 있도록 아이들 링을 더 포함하는 것을 특징으로 하는 드라이버.The driver further comprises an idle ring to facilitate the rotation of the front body.
PCT/KR2010/000794 2010-02-09 2010-02-09 Driver WO2011099654A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020161059A3 (en) * 2019-02-04 2020-10-01 Wera Werkzeuge Gmbh Screwdriver tool with a gear ratio

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243179U (en) * 1988-09-16 1990-03-26
JPH02107471U (en) * 1989-02-13 1990-08-27
US5647254A (en) * 1994-08-10 1997-07-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Bevel gear driver and method having torque limit selection
KR100641898B1 (en) * 2005-08-11 2006-11-02 김종필 Driver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243179U (en) * 1988-09-16 1990-03-26
JPH02107471U (en) * 1989-02-13 1990-08-27
US5647254A (en) * 1994-08-10 1997-07-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Bevel gear driver and method having torque limit selection
KR100641898B1 (en) * 2005-08-11 2006-11-02 김종필 Driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020161059A3 (en) * 2019-02-04 2020-10-01 Wera Werkzeuge Gmbh Screwdriver tool with a gear ratio

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