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WO2018021433A1 - Outil électrique - Google Patents

Outil électrique Download PDF

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Publication number
WO2018021433A1
WO2018021433A1 PCT/JP2017/027104 JP2017027104W WO2018021433A1 WO 2018021433 A1 WO2018021433 A1 WO 2018021433A1 JP 2017027104 W JP2017027104 W JP 2017027104W WO 2018021433 A1 WO2018021433 A1 WO 2018021433A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotation
clutch member
clutch
gear
base
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/027104
Other languages
English (en)
Japanese (ja)
Inventor
村上　弘明
関野　文昭
光政 水野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of WO2018021433A1 publication Critical patent/WO2018021433A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit

Definitions

  • the present invention relates to a power tool having a plurality of operation modes.
  • a hammer drill that includes a rotation transmission mechanism and a hammer transmission mechanism capable of transmitting the rotational force of a motor to a tip tool and can switch the operation mode of the tip tool according to the work content.
  • the rotation transmission mechanism is a mechanism for transmitting the rotational motion of the motor as it is or decelerating it to the tip tool
  • the impact transmission mechanism is for converting the motor rotational motion into a reciprocating motion and transmitting the impact motion to the tip tool.
  • “Rotation Blow Mode”, “Rotation Mode”, and “Blow Mode” can be selected as operation modes.
  • the “rotary impact mode” is an operation mode in which the rotation transmission mechanism and the impact transmission mechanism transmit the rotational motion and the impact motion to the tip tool, and generate the rotational force and the impact force on the tip tool.
  • the “rotation mode” is an operation mode in which the rotation transmission mechanism transmits a rotational motion to the tip tool to generate a rotational force on the tip tool.
  • the “striking mode” is an operation mode in which the striking transmission mechanism transmits a striking motion to the tip tool and generates a striking force on the tip tool.
  • Patent Document 1 discloses a hammer drill that can switch an operation mode by rotating a switching lever.
  • the hammer drill is provided with a switching auxiliary shaft and a moving member movable in the axial direction.
  • the switching lever is rotated, the eccentric pin of the switching lever moves the moving member upward in the axial direction of the switching auxiliary shaft. The rotation transmission of the clutch mechanism is released.
  • a hammer drill Since hammer drills are power tools that users use by hand, there is a great demand for miniaturization and weight reduction.
  • a hammer drill requires a structure for switching the operation mode, but downsizing the operation mode switching structure contributes to a reduction in the size and weight of the hammer drill.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide a technique for realizing an operation mode switching structure with a simple configuration.
  • an electric tool includes a motor having a drive shaft, a first rotating gear that rotates by rotation of the driving shaft, and a rotational motion of the first rotating gear converted into a reciprocating motion.
  • a hammer transmission mechanism for transmitting a hammering motion to the tip tool, a first clutch member for connecting or disconnecting the first rotary gear and the hammer transmission mechanism, and a second rotary gear that rotates by rotation of the drive shaft.
  • a rotation transmission mechanism for transmitting the rotational motion of the second rotation gear to the tip tool, and a second clutch member for connecting or disconnecting the second rotation gear and the rotation transmission mechanism.
  • This electric tool includes an operation switch having a rotatable base, an operator formed on the front side of the base and exposed outside the housing, and an engagement member formed on the back side of the base and protruding into the housing. Further prepare.
  • the engaging member is disposed at a position where it can contact the first clutch member and the second clutch member.
  • FIG. 1 shows schematic structure of the electric tool which concerns on embodiment of this invention. It is a figure which shows the structure of an operation switch. It is a figure which shows the state which attached the operation switch to the housing. It is a figure which shows the structure for transmitting a reciprocating motion and / or rotational motion to a drive mechanism. It is a figure which shows the state of the operation switch and to-be-operated part in rotation impact mode. It is a figure which shows the state of the operation switch and to-be-operated part in rotation mode. It is a figure which shows the state of the operation switch and to-be-operated part in impact mode. It is a figure which shows the state of the operation switch and to-be-operated part in impact mode. It is a figure which shows the state of the operation switch and to-be-operated part in impact mode. It is a figure which shows the modification of a 1st engagement member and a 2nd engagement member.
  • FIG. 1 shows a schematic configuration of a power tool 1 according to an embodiment of the present invention.
  • the electric tool 1 is a hammer drill having a plurality of operation modes, and an outer shell is constituted by a housing.
  • the electric tool 1 includes a drive mechanism 2, a reciprocating motion transmitting unit 20, a first rotating gear 21, a rotating motion transmitting unit 30, a second rotating gear 31, a first clutch 40, a second clutch 50, a rotation regulating mechanism 60, and a motor 80.
  • the control part 82 is provided in a housing.
  • the operation switch 70 and the trigger switch 84 each have an operation element that is exposed to the outside of the housing and is operated by the user.
  • the motor 80 has a drive shaft 81, and the first rotary gear 21 and the second rotary gear 31 are engaged with a gear at the tip of the drive shaft and rotated by the rotation of the drive shaft 81.
  • the trigger switch 84 is operated by the user, and the control unit 82 controls on / off of the motor 80 depending on whether or not the trigger switch 84 is operated, and rotates the motor 80 so that the rotation speed corresponds to the operation amount of the trigger switch 84.
  • the control unit 82 includes a microcomputer mounted on the control board and supplies current to the motor 80 from a battery (not shown).
  • the electric power tool 1 converts the rotary motion of the first rotary gear 21 into a reciprocating motion, and transmits the hit motion to the tip tool 12 and the rotary motion of the second rotary gear 31 to the tip tool 12.
  • the first clutch 40 includes a first clutch member that connects or disconnects the first rotation gear 21 and the impact transmission mechanism, and the second clutch 50 connects or connects the second rotation gear 31 and the rotation transmission mechanism. It has the 2nd clutch member to cancel
  • the drive mechanism 2 includes a piston 3, a connecting rod 5, a cylinder 6, a striker 7, an intermediate element 8, a bevel gear 9 and a spur gear 10.
  • the bevel gear 9 and the spur gear 10 may be provided adjacent to each other in the axial direction, but may be provided apart from each other.
  • a tool holding portion 11 is fixed to the tip side of the cylinder 6, and the tool holding portion 11 holds the tip tool 12 so as to be able to advance and retreat in the axial direction.
  • the piston 3 and the striker 7 are slidably accommodated in the cylinder 6.
  • the front end side of the connecting rod 5 is rotatably supported with respect to the piston 3 by the piston pin 4, and the rear end side is rotatably supported by the eccentric pin of the crankshaft in the reciprocating motion transmission unit 20.
  • the reciprocating motion transmitting unit 20 and the connecting rod 5 convert the rotational motion of the first rotating gear 21 into the reciprocating motion on the axis of the tip tool 12 and transmit it to the piston 3.
  • An air spring mechanism is formed between the piston 3 and the striking element 7, and the striking element 7 applies a striking force to the tip tool 12 through the intermediate element 8 as the piston 3 moves forward.
  • the impact transmission mechanism includes a reciprocating motion transmission unit 20, a connecting rod 5, a piston 3, a piston pin 4, an impactor 7, an air spring mechanism, and an intermediate element 8. Converting and transmitting the striking motion to the tip tool 12.
  • the cylinder 6 is rotatably supported in the housing.
  • the bevel gear 9 and the spur gear 10 are fixed to the outer periphery of the cylinder 6 and rotate integrally with the cylinder 6.
  • the rotational motion transmitting unit 30 transmits the rotational motion of the second rotational gear 31 to the bevel gear 9 to the bevel gear 9, the bevel gear 9 rotates integrally with the cylinder 6 and the tool holding unit 11, thereby the tip held by the tool holding unit 11.
  • a rotational force is applied to the tool 12.
  • the rotation transmission mechanism is configured by the rotation motion transmission unit 30, the bevel gear 9, the cylinder 6, and the tool holding unit 11, and transmits the rotation motion of the second rotation gear 31 to the tip tool 12.
  • the rotation restricting mechanism 60 is a mechanism for fixing the angle of the tip tool 12 in the impact mode.
  • the rotation restricting mechanism 60 includes a restricting member that is engaged with the teeth of the spur gear 10 and restricts the rotation of the spur gear 10.
  • the rotation restricting mechanism 60 may insert the restricting member into the tooth groove from the radial direction of the spur gear 10, and may insert the restricting member into the tooth groove from a direction parallel to the axis of the spur gear 10.
  • the operation switch 70 is rotatably attached to the housing and is rotated by the user to select an operation mode.
  • the operation switch 70 is rotated to move at least the first clutch 40 and the second clutch 50.
  • the electric power tool 1 according to the embodiment includes the rotation restricting mechanism 60 that fixes the angle of the tip tool 12 in the impact mode, and the operation restricting mechanism 60 may be moved by rotating the operation switch 70.
  • the first clutch 40, the second clutch 50, and the rotation restricting mechanism 60 may be collectively referred to as the “operated portion 19”.
  • the operation switch 70 moves the operated part 19 alone. Note that “moving alone” means that the operation switch 70 is moved directly in contact with the operated portion 19 without passing through other components.
  • FIG. 2A is a perspective view of the back side of the operation switch 70
  • FIG. 2B is a front view of the operation switch 70
  • the operation switch 70 includes a base 71 having a circular cross section, an operation element 76 formed on the base front surface 71b side, and an engagement member 72 formed on the base rear surface 71a side.
  • the engaging member 72 according to the embodiment includes a first engaging member 73, a second engaging member 74, and a third engaging member 75, and each protrudes in parallel with the rotation axis of the base 71 from the base back surface 71 a.
  • the first engaging member 73 and the second engaging member 74 are formed as Y-shaped members connected to ensure strength, but are separated from each other on the base rear surface 71a. It may be formed as a separate member.
  • the operation element 76 is a part for the user to rotate the base 71.
  • the operation element 76 is formed as a knob that protrudes across the diameter of the base 71, but the operation element 76 may be formed as a recess into which a part of a finger can be inserted into the base front surface 71b. .
  • the operation element 76 may be formed on the base front surface 71 b side so that the user can rotate the base 71.
  • FIG. 3A shows a state in which the operation switch 70 is rotatably attached to the housing 14.
  • the operation switch 70 is rotatably attached to the housing 14 by a protrusion projecting inwardly from the inner peripheral surface of the circular opening of the housing 14 entering an annular groove provided on the side surface of the base 71.
  • the mounting structure of the operation switch 70 may be another structure.
  • the operation element 76 In a state where the base portion 71 is rotatably supported by the housing 14, the operation element 76 is exposed to the outside of the housing 14, and the engaging member 72 protrudes to the inside of the housing 14. Inside the housing 14, the engaging member 72 is disposed at a position where it can contact the first clutch 40, the second clutch 50, and the rotation restriction mechanism 60.
  • the engaging member 72 provided on the base rear surface 71a contacts and moves at least one of the first clutch 40, the second clutch 50, and the rotation restricting mechanism 60.
  • FIG. 3B is an external view of the operation switch 70 and shows the operation switch 70 viewed from the outside of the housing.
  • set positions corresponding to a plurality of operation modes are defined. Each set position corresponds to one of the operation modes in the electric power tool 1, and the set positions for selecting the rotation mode, the rotation hit mode, the hit mode (neutral), and the hit mode (fixed angle) are formed apart from each other.
  • the striking mode (neutral) is a striking mode in which the angle of the tip tool 12 is not fixed
  • the striking mode (fixed angle) is a striking mode in which the angle of the tip tool 12 is fixed.
  • the user rotates the operation element 76 to a set position corresponding to the work content. In the example shown in FIG. 3B, the operation element 76 is arranged at the setting position of the rotation impact mode.
  • the operation element 76 arranged at the set position is restricted from moving from that position unless a rotational force of a predetermined value or more is applied.
  • the operation element 76 may be restricted by another lock mechanism so as not to move from the set position. Thus, it is possible to prevent the operation element 76 from moving even when the user does not operate the operation element 76 during the work.
  • FIG. 4 shows a structure for transmitting reciprocating motion and / or rotational motion to the drive mechanism 2.
  • the connecting rod 5 is inserted into the cylinder 6 through the opening of the piston cup 13.
  • the reciprocating motion transmission unit 20 has a crankshaft 23 to which the rotational motion of the first rotating gear 21 is transmitted.
  • a rotating plate 25 having an eccentric pin 26 is provided on the crankshaft 23.
  • the eccentric pin 26 is disposed at a position shifted from the rotational axis of the rotating plate 25 and is inserted into a pin hole formed at the rear end of the connecting rod 5.
  • the leading end side of the connecting rod 5 is rotatably supported by the piston pin 4 with respect to the piston 3, and the crankshaft 23 and the connecting rod 5 convert the rotational motion of the first rotating gear 21 into the reciprocating motion of the piston 3.
  • a groove 24 along the axial direction is formed on the outer peripheral surface of the crankshaft 23.
  • the annular first clutch member 41 is an element of the first clutch 40 and has a sliding protrusion 43 that protrudes to the inside of the inner peripheral surface.
  • the sliding protrusion 43 is inserted into the groove portion 24 of the crankshaft 23, whereby the first clutch member 41 is attached to the crankshaft 23 so as not to rotate and to move in the axial direction.
  • the first clutch member 41 has a plurality of claw portions 42 on the lower surface, and the first rotating gear 21 has a plurality of claw portions 22 on the upper surface.
  • the first clutch member 41 is biased toward the first rotating gear 21 by a spring member (not shown). Therefore, when the first clutch member 41 is not moved by the operation switch 70, the claw portion 42, the claw portion 22, Engage.
  • the first clutch member 41 connects the first rotary gear 21 and the impact transmission mechanism by engaging the claw portion 42 of the first clutch member 41 with the claw portion 22 of the first rotary gear 21.
  • the rotary motion transmission unit 30 has an intermediate shaft 33 through which the rotary motion of the second rotary gear 31 is transmitted.
  • the intermediate shaft 33 is disposed in parallel to the crankshaft 23.
  • a bevel gear 35 that meshes with the bevel gear 9 is provided on the upper portion of the intermediate shaft 33.
  • the bevel gear 35 transmits the rotational motion of the intermediate shaft 33 to the bevel gear 9.
  • a groove 34 along the axial direction is formed on the outer peripheral surface of the intermediate shaft 33.
  • the annular second clutch member 51 is an element of the second clutch 50 and has a sliding protrusion 53 that protrudes inside the inner peripheral surface.
  • the sliding projection 53 is inserted into the groove 34 of the intermediate shaft 33, whereby the second clutch member 51 is attached to the intermediate shaft 33 so as not to rotate and to move in the axial direction.
  • the second clutch member 51 has a plurality of claw portions 52 on the lower surface, and the second rotating gear 31 has a plurality of claw portions 32 on the upper surface.
  • the second clutch member 51 is biased toward the second rotating gear 31 by a spring member (not shown). Therefore, when the second clutch member 51 is not moved by the operation switch 70, the claw portion 52, the claw portion 32, Engage. When the claw portion 52 of the second clutch member 51 and the claw portion 32 of the second rotation gear 31 are engaged, the second clutch member 51 connects the second rotation gear 31 and the rotation transmission mechanism.
  • the rotation regulating mechanism 60 has a regulating member 61 and a moving member 62.
  • the regulating member 61 and the moving member 62 are integrally formed in an L shape.
  • the rotation restricting mechanism 60 is provided so as to be movable with respect to the spur gear 10, and the restricting member 61 is urged away from the spur gear 10 by a spring member (not shown). Therefore, when the moving member 62 is not moved by the operation switch 70, the regulating member 61 is located away from the teeth of the spur gear 10 and is not locked to the teeth of the spur gear 10.
  • the moving member 62 is moved upward along a guide member (not shown) that determines the moving direction by rotating the operation switch 70, the regulating member 61 is locked to the teeth of the spur gear 10 to transmit the rotation.
  • the rotation of the mechanism is regulated.
  • the restricting member 61 is locked to the teeth of the spur gear 10
  • the connection between the second rotating gear 31 and the intermediate shaft 33 has already been released.
  • the operation switch 70 has a plurality of engaging members protruding into the housing 14, that is, the first engaging member 73, the second engaging member 74, and the third engaging member 75.
  • the first engagement member 73 is disposed at a position where the first engagement member 73 can contact the first clutch member 41, and the second engagement member 74 can contact the second clutch member 51.
  • the third engagement member 75 is disposed at a position where it can come into contact with the moving member 62.
  • this rotation operation corresponds to an operation of rotating the operation element 76 from the setting position of the “rotation impact mode” to the setting position of the “rotation mode”.
  • this rotation operation corresponds to an operation of rotating the operation element 76 from the setting position of “Rotation batting mode” to the setting position of “Batting mode (neutral)”.
  • this rotation operation corresponds to an operation of rotating the operation element 76 from the setting position of “blow mode (neutral)” to the setting position of “blow mode (fixed angle)”.
  • FIG. 5 shows the state of the operation switch 70 and the operated portion 19 in the rotation hitting mode.
  • the first engagement member 73, the second engagement member 74, and the third engagement member 75 do not act on the first clutch member 41, the second clutch member 51, and the moving member 62, respectively. Therefore, the 1st clutch member 41, the 2nd clutch member 51, and the moving member 62 are each stopped in the position biased by the spring member.
  • the first clutch member 41 connects the first rotating gear 21 and the impact transmission mechanism
  • the second clutch member 51 connects the second rotating gear 31 and the rotation transmission mechanism
  • the regulating member 61 is a spur gear.
  • the rotation of 10 is not restricted.
  • FIG. 6 shows the state of the operation switch 70 and the operated portion 19 in the rotation mode.
  • the rotation mode is selected by rotating the operation switch 70 in the direction of arrow A from the state shown in FIG.
  • the first engagement member 73 comes into contact with the first clutch member 41 and the first clutch member 41 is moved to a position where the connection between the first clutch member 41 and the first rotation gear 21 is released. is there.
  • the second engagement member 74 and the third engagement member 75 do not act on the second clutch member 51 and the moving member 62, respectively. Therefore, the second clutch member 51 and the moving member 62 are held at the positions biased by the spring members.
  • the first clutch member 41 releases the connection between the first rotation gear 21 and the impact transmission mechanism
  • the second clutch member 51 connects the second rotation gear 31 and the rotation transmission mechanism
  • the restriction member 61 is The rotation of the spur gear 10 is not restricted.
  • FIG. 7 shows the state of the operation switch 70 and the operated portion 19 in the batting mode (neutral).
  • the batting mode (neutral) is selected by rotating the operation switch 70 in the direction of the arrow B opposite to the arrow A from the state shown in FIG.
  • the second engagement member 74 contacts the second clutch member 51 and moves the second clutch member 51 to a position where the connection between the second clutch member 51 and the second rotating gear 31 is released. It is in the state.
  • the first engaging member 73 and the third engaging member 75 do not act on the first clutch member 41 and the moving member 62, respectively. Accordingly, the first clutch member 41 and the moving member 62 are held at the positions biased by the spring members.
  • the first clutch member 41 connects the first rotation gear 21 and the impact transmission mechanism
  • the second clutch member 51 releases the connection between the second rotation gear 31 and the rotation transmission mechanism
  • the restriction member 61 The rotation of the spur gear 10 is not restricted.
  • FIG. 8 shows the state of the operation switch 70 and the operated portion 19 in the impact mode (fixed angle).
  • the batting mode (fixed angle) is selected by further rotating the operation switch 70 in the direction of arrow B from the state shown in FIG.
  • the third engaging member 75 is in contact with the moving member 62 and the moving member 62 is moved to a position where the restricting member 61 is locked to the spur gear 10.
  • the first engagement member 73 does not act on the first clutch member 41, and the first clutch member 41 is held at a position biased by the spring member.
  • the first clutch member 41 connects the first rotation gear 21 and the impact transmission mechanism
  • the second clutch member 51 releases the connection between the second rotation gear 31 and the rotation transmission mechanism
  • the restriction member 61 The rotation of the spur gear 10 is restricted.
  • the operation switch 70 is a single unit, and the first clutch member 41, the second clutch member 51, and the moving member 62 are movable. As a result, the operation mode switching structure can be reduced in size, which contributes to reduction in size and weight of the power tool body. By adjusting the heights of the lower surfaces of the first clutch member 41 and the second clutch member 51 and aligning the height at which the engaging member 72 first contacts the first clutch member 41 and the second clutch member 51, the operation switch 70 can be made smaller.
  • FIG. 9A and FIG. 9B show a modification of the first engagement member 73 and the second engagement member 74.
  • illustration of the third engagement member 75 is omitted.
  • the first engaging member 73 and the second engaging member 74 are each formed by two pin members erected from the base rear surface 71a.
  • the first engaging member 73 and the second engaging member 74 are formed by a single pin member erected from the base rear surface 71a.
  • one side (left side in the drawing) of the pin member functions as the first engagement member 73
  • the other side (right side in the drawing) functions as the second engagement member 74. To do.
  • the third engaging member 75 is brought into contact with the rotation restricting mechanism 60 and moved upward, whereby the restricting member 61 is locked to the spur gear 10 attached to the rotation transmitting mechanism. did.
  • the movement direction of the rotation restricting mechanism 60 is not limited to the upward direction, and may be a direction parallel to the axis of the spur gear 10. In any case, the third engaging member 75 contacts the rotation restricting mechanism 60 and moves in a predetermined direction to lock the restricting member 61 on the spur gear 10. The restricting member 61 may be pressed against the spur gear 10 to restrict the rotation of the spur gear 10.
  • An electric power tool (1) includes a motor (80) having a drive shaft (81), a first rotating gear (21) that rotates by rotation of the driving shaft, and rotational motion of the first rotating gear. Conversion to reciprocating motion, an impact transmission mechanism for transmitting the impact motion to the tip tool (12), a first clutch member (41) for connecting or disconnecting the first rotary gear and the impact transmission mechanism, and driving The second rotary gear (31) that rotates by rotating the shaft, the rotation transmission mechanism for transmitting the rotary motion of the second rotary gear to the tip tool, and the second rotary gear and the rotation transmission mechanism are connected or disconnected.
  • a second clutch member (51) is provided in the housing (14).
  • the electric tool (1) includes a rotatable base (71), an operator (76) formed on the front side of the base and exposed outside the housing, and formed on the back side of the base and protruding into the housing.
  • An operation switch (70) having an engaging member (72) is further provided.
  • the engaging member (72) is disposed at a position where it can come into contact with the first clutch member (41) and the second clutch member (51).
  • the engaging member (72) When the base (71) rotates by rotating the operating element (76), the engaging member (72) contacts the first clutch member or the second clutch member, and the first clutch member or second contacted The clutch member may be moved.
  • the engaging member (72) may be formed so as to protrude in parallel with the rotation axis of the base from the back surface of the base.
  • the electric tool (1) may further include a rotation restricting mechanism (60) having a restricting member (61) that restricts rotation of the rotation transmitting mechanism.
  • the engaging member (72) may be disposed at a position where it can come into contact with the rotation restricting mechanism.
  • the engaging member (72) contacts the rotation restricting mechanism (60) and moves in a predetermined direction, thereby locking the restricting member (61) to the spur gear (10) attached to the rotation transmitting mechanism. It's okay.
  • the engaging member (72) includes a first engaging member (73) that contacts the first clutch member when the base portion rotates in the first direction, and a second clutch member when the base portion rotates in the second direction.
  • the present invention can be used for an electric tool having a plurality of operation modes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne un mécanisme de transmission de percussion qui convertit le mouvement de rotation d'un premier engrenage rotatif (21) en un mouvement de va-et-vient, et transmet un mouvement de percussion à un outil (12) d'extrémité. Un premier élément d'embrayage relie et sépare le premier engrenage rotatif (21) et le mécanisme de transmission de percussion. Un mécanisme de transmission de rotation transmet le mouvement de rotation d'un second engrenage rotatif (31) à l'outil (12) d'extrémité. Un second élément d'embrayage relie et sépare le second engrenage rotatif (31) et le mécanisme de transmission de rotation. Un commutateur d'actionnement (70) comporte une base rotative, une pièce d'actionnement formée sur la surface avant de la base et qui est apparente à l'extérieur d'un boîtier, et un élément de mise en prise formé sur la surface arrière de la base et faisant saillie à l'intérieur du logement. L'élément de mise en prise est placé dans une position dans laquelle il peut venir en contact avec le premier élément d'embrayage et le second élément d'embrayage.
PCT/JP2017/027104 2016-07-29 2017-07-26 Outil électrique Ceased WO2018021433A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-150631 2016-07-29
JP2016150631A JP2018015881A (ja) 2016-07-29 2016-07-29 電動工具

Publications (1)

Publication Number Publication Date
WO2018021433A1 true WO2018021433A1 (fr) 2018-02-01

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PCT/JP2017/027104 Ceased WO2018021433A1 (fr) 2016-07-29 2017-07-26 Outil électrique

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JP (1) JP2018015881A (fr)
WO (1) WO2018021433A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002192481A (ja) * 2000-10-20 2002-07-10 Hitachi Koki Co Ltd ハンマドリル
JP2005297183A (ja) * 2004-04-08 2005-10-27 Hilti Ag ハンマドリル装置
JP2006175594A (ja) * 2004-12-23 2006-07-06 Black & Decker Inc ハンマードリル
JP2008183633A (ja) * 2007-01-26 2008-08-14 Makita Corp ハンマドリル
EP2527097A1 (fr) * 2010-01-21 2012-11-28 Zhejiang Haiwang Electric Machine Co., Ltd Marteau électrique multifonction lourd à deux boutons
CN104786199B (zh) * 2014-11-07 2016-06-29 江苏东成机电工具有限公司 一种模式切换装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002192481A (ja) * 2000-10-20 2002-07-10 Hitachi Koki Co Ltd ハンマドリル
JP2005297183A (ja) * 2004-04-08 2005-10-27 Hilti Ag ハンマドリル装置
JP2006175594A (ja) * 2004-12-23 2006-07-06 Black & Decker Inc ハンマードリル
JP2008183633A (ja) * 2007-01-26 2008-08-14 Makita Corp ハンマドリル
EP2527097A1 (fr) * 2010-01-21 2012-11-28 Zhejiang Haiwang Electric Machine Co., Ltd Marteau électrique multifonction lourd à deux boutons
CN104786199B (zh) * 2014-11-07 2016-06-29 江苏东成机电工具有限公司 一种模式切换装置

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