WO2016082768A1 - 摆动动力工具 - Google Patents

摆动动力工具 Download PDF

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Publication number
WO2016082768A1
WO2016082768A1 PCT/CN2015/095613 CN2015095613W WO2016082768A1 WO 2016082768 A1 WO2016082768 A1 WO 2016082768A1 CN 2015095613 W CN2015095613 W CN 2015095613W WO 2016082768 A1 WO2016082768 A1 WO 2016082768A1
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WO
WIPO (PCT)
Prior art keywords
power tool
stopper
motor
housing
stopping
Prior art date
Application number
PCT/CN2015/095613
Other languages
English (en)
French (fr)
Inventor
钱富
钟红风
张士松
顾金发
程刚良
Original Assignee
苏州宝时得电动工具有限公司
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
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Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2016082768A1 publication Critical patent/WO2016082768A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • the present invention relates to a power tool, and more particularly to a hand-held swing power tool.
  • the multi-function machine is a common hand-held swing power tool in the industry. Its working principle is that the output shaft makes a swing motion around its own axis. Therefore, when the user installs different working heads on the free end of the output shaft, such as a straight saw blade, a circular saw blade, a triangular sanding disc, and a shovel-type scraper, a variety of different operating functions, such as sawing and cutting, can be realized. , grinding, scraping, etc., to adapt to different work needs.
  • the conventional oscillating power tool 100' mainly includes a motor 11', an eccentric transmission mechanism 3 driven by a main shaft 4', and an output shaft 2' driven by an eccentric transmission mechanism 3.
  • the eccentric transmission mechanism 3 mainly comprises an eccentric member 8' mounted on the main shaft 4' and a shifting fork 7' mounted on the output shaft 2'.
  • the user desires to be able to swing the power tool 100' to output different swing angles to meet more application conditions.
  • the oscillating power tool 100' is used to mount the straight saw blade 6' to groove on the wood material of different hardness, if the hardness of the wood material is low, the output shaft 2' outputs a generally small swing angle;
  • the hardness of the wood material is high, the wood chips are not easily discharged at a small swing angle, so that the straight saw blade 6' is easily caught, and the output shaft 2' is required to output a large swing angle.
  • the manufacturer realized such a problem, improved the structure of the oscillating power tool, and added a structure capable of achieving different swing angles, for example, by double eccentric members respectively mating with different parts of the shift fork, or at the fork
  • An intermediate piece is arranged on the upper part of the middle piece to be respectively coupled to the double eccentric piece, thereby realizing the function of different swing angles.
  • a swinging power tool capable of realizing a plurality of swing angles, when the user adjusts the swing angle while the swing power tool is working, may reduce the reliability of the mechanism and even cause damage to the user's body.
  • the swing angle of the swinging power tool is not adjusted, the user turns the tool on, which may cause damage to the tool or other objects, and even damage the user's body.
  • the technical problem to be solved by the present invention is to provide an operating power swing power tool.
  • a swinging power tool includes: a housing; a motor housed in the housing and having a motor shaft; and a switch connected to the motor for turning on or off the motor a motor running; a triggering member disposed in the housing and connected to the switch for triggering the switch to open or close the motor; and an output shaft driven by the motor shaft to swing around its own axis; a transmission mechanism for converting a rotational motion of the motor shaft into a swing of the output shaft, the transmission mechanism comprising an eccentric device mounted on the motor shaft and a fork assembly connecting the eccentric device and an output shaft; a mechanism disposed on the housing for adjusting the transmission mechanism such that the output shaft has different swing angles, wherein the swing power tool further includes a stop mechanism movably disposed relative to the housing, The stop mechanism has two positions, and when the switch activates the motor, the stop mechanism is in a first position, preventing the adjustment mechanism from adjusting the Mechanism; when the adjustment mechanism adjusting the transmission mechanism,
  • the adjusting mechanism includes a limiting portion and a mating portion; when the stopping mechanism is in the first position, the stopping mechanism is coupled to the triggering member and simultaneously resists the limiting portion for preventing the
  • the adjusting structure adjusts the transmission mechanism; when the stopping mechanism is in the second position, the stopping mechanism is slidably engaged with the engaging portion, and the stopping mechanism is connected with the triggering member for The switch is prevented from starting the motor.
  • the trigger member includes a switch lever slidably coupled to the housing, the stop mechanism includes a stop member, and the stop member is provided with a contact portion and a stop portion connected to the switch lever;
  • the stopping mechanism When the stopping mechanism is in the first position, the stopping portion is in contact with the limiting portion; when the stopping mechanism is in the second position, the stopping portion is slidably engaged with the engaging portion.
  • the stopping mechanism comprises a stopping member pivotally connected to the housing, the stopping member is provided with a contact portion and a stopping portion; when the stopping mechanism is in the first position The contact portion is connected to the triggering member, the stopping portion is in contact with the limiting portion; when the stopping mechanism is in the second position, the stopping portion and the engaging portion are slipped In cooperation, the contact portion is connected to the trigger member.
  • the stop mechanism further includes an elastic member disposed between the stopper and the housing, the elastic member providing an elastic force that urges the contact portion to be coupled to the trigger member.
  • the adjustment mechanism comprises an operating unit and a movable connection of the movable connection housing a unit and a transmission unit of the transmission mechanism, the operation unit including an operation member that performs a rotation operation about an adjustment axis, and a cam member that connects the operation member, the transmission unit includes a receiving member that can accommodate the cam member, and And a connecting member connecting the transmission mechanism, when the cam member rotates in the receiving member, driving the transmitting member to drive the transmission mechanism to move.
  • the limiting portion and the engaging portion are disposed adjacent to the transmitting member.
  • the pivot axis of the stop is parallel to the axis of the output shaft and perpendicular to the axis of the motor shaft.
  • the pivot axis of the stopper is located at an opposite end of the stopping portion, and the contact portion is located between the pivot shaft and the stopping portion.
  • the limiting portion and the engaging portion are disposed adjacent to the cam member.
  • the pivot axis of the stop is perpendicular to the axis of the output shaft and the axis of the motor shaft.
  • the pivot axis of the stopper is located between the stopping portion and the contact portion, and the stopping portion is located at an opposite end of the contact portion.
  • a swinging power tool comprising: a housing; a motor housed in the housing, having a motor shaft; and a triggering member disposed in the housing for use
  • the motor is triggered to be turned on or off; the output shaft is driven by the motor shaft to swing around its own axis; and the transmission mechanism converts the rotational motion of the motor shaft into the swing of the output shaft, and the transmission mechanism includes An eccentric device mounted on the motor shaft and a fork assembly connecting the eccentric device and the output shaft; an adjustment mechanism disposed on the housing for adjusting the transmission mechanism such that the output shaft has a different
  • the swinging power tool further includes a stop disposed movably relative to the housing, the stop being movable between two positions, in the first position, allowing the trigger to be relative to the housing Actuating, preventing the adjustment mechanism from adjusting the transmission mechanism; in the second position, allowing the adjustment mechanism to adjust the transmission mechanism to prevent the trigger member from being opposite to the housing move.
  • the oscillating power tool includes the adjusting mechanism including a limiting portion and a fitting portion; when the stopping member is in the first position, the stopping member is in contact with the limiting portion; the stop When the piece is in the second position, the stopper is slidably engaged with the engaging portion.
  • the triggering member is provided with a chute
  • the stopping member comprises a contact portion and a stopping portion, wherein the contact portion is received in the chute; the stopper is located in the first In a position, the stopping portion is in contact with the limiting portion; when the stopping member is in the second position, the stopping portion is slidably engaged with the engaging portion.
  • the limiting portion includes first and second limiting portions that are selectively engageable with the stopping portion.
  • the mating portion is disposed between the first and second limiting portions.
  • the adjustment mechanism includes an operation unit of the movable connection housing, a stopper that drives the rotational movement by the operation unit, and the limiting portion and the fitting portion are disposed on the stopper.
  • the adjustment mechanism includes an operation unit of the movable connection housing and a transmission unit that movably connects the operation unit and the transmission mechanism, and the limiting portion and the fitting portion are disposed on the operation unit; or The limiting portion and the mating portion are disposed on the transfer unit.
  • the stopper is rotatably disposed about an axis of the motor shaft.
  • a swinging power tool comprising: a housing; a motor housed in the housing, having a motor shaft; and a triggering member disposed in the housing for use
  • the motor is triggered to be turned on or off; the output shaft is driven by the motor shaft to swing around its own axis; the transmission mechanism converts the rotational motion of the motor shaft into the swing of the output shaft; the adjusting mechanism is disposed at The housing is configured to adjust the transmission mechanism such that the output shaft has different swing angles;
  • the swing power tool further includes a stop disposed between the adjustment mechanism and the trigger member, The stop is movable between two positions, in the first position, allowing the trigger member to move relative to the housing, preventing the adjustment mechanism from adjusting the transmission mechanism; in the second position, allowing the An adjustment mechanism adjusts the transmission mechanism to prevent the trigger member from moving relative to the housing.
  • the swinging power tool of the present invention realizes a position where the user cannot adjust the swing angle during the opening of the swing power tool by providing the stop mechanism or the stopper; in the process of adjusting the swing angle position When the swing angle is not adjusted in position, the switch cannot be triggered, and thus the swing power tool is not activated; thereby greatly improving the reliability of the swing power tool and the safety of the swing power tool operation, and avoiding between components Wear and tear.
  • FIG. 1 is a schematic cross-sectional view of a conventional oscillating power tool.
  • FIG. 2 is a perspective view showing a partial structure of the oscillating power tool shown in FIG. 1.
  • Fig. 3 is a schematic overall view of the oscillating power tool of the first embodiment of the present invention.
  • Figure 4 is an exploded perspective view showing a portion of the structure of the oscillating power tool shown in Figure 3.
  • Figure 5 is an exploded perspective view of the eccentric transmission mechanism of the oscillating power tool shown in Figure 3.
  • Figure 6 is a schematic overall view of the shifting fork assembly of the oscillating power tool of Figure 3.
  • Figure 7 is a schematic overall view of the second fork member of the oscillating power tool of Figure 3.
  • Fig. 8 is a schematic overall view of the holding mechanism of the oscillating power tool shown in Fig. 3.
  • Figure 9 is a schematic internal cross-sectional view of a portion of the oscillating power tool of Figure 3.
  • Figure 10 is a cross-sectional view of the retaining mechanism of Figure 9 taken along plane A-A.
  • Figure 11 is an exploded perspective view of the adjusting mechanism of the oscillating power tool of Figure 3 taken along an angle.
  • Figure 12 is an exploded perspective view of the adjusting mechanism of the oscillating power tool of Figure 3 taken along another angle.
  • Figure 13 is a schematic overall view of the transfer unit of the oscillating power tool of Figure 3.
  • Figure 14 is a schematic overall view of the stopper of the oscillating power tool shown in Figure 3.
  • Figure 15 is a schematic overall view of the trigger member of the oscillating power tool of Figure 3.
  • Figure 16 is a schematic overall view of the oscillating power tool of Figure 3 in a first swing position.
  • Figure 17 is a partial structural view of the oscillating power tool of Figure 16.
  • Figure 18 is a schematic overall view of the oscillating power tool of Figure 3 in a second swing position.
  • Figure 19 is a partial structural view of the oscillating power tool shown in Figure 18.
  • Figure 20 is a schematic overall view of the oscillating power tool of Figure 3 in the process of adjusting the swing angle.
  • Figure 21 is a partial structural view of the oscillating power tool shown in Figure 20.
  • Figure 22 is a cross-sectional view showing the second embodiment of the present invention at a first swing position.
  • Figure 23 is a cross-sectional view showing the second embodiment of the present invention in a second swing position.
  • Figure 24 is a cross-sectional view showing the second embodiment of the present invention in the process of adjusting the swing angle.
  • Figure 25 is a partially exploded perspective view of a swinging power tool according to a third embodiment of the present invention.
  • Figure 26 is a partial schematic view of the oscillating power tool of Figure 25 in a first swing position with the trigger member in an open position.
  • Figure 27 is a partial schematic view of the oscillating power tool of Figure 25 in a first swing position with the trigger member in a closed position.
  • Figure 28 is a schematic view of the oscillating power tool shown in Figure 25 in a process of adjusting the swing angle.
  • Figure 29 is a partial schematic view of the oscillating power tool of Figure 25 in a second swing position with the trigger member in the closed position.
  • Figure 30 is a partial schematic view of the oscillating power tool of Figure 25 in a second swing position with the trigger member in the open position.
  • FIG. 3 to 4 show an oscillating power tool 1 having a housing 2 extending substantially in one direction.
  • the housing 2 is defined to extend in the longitudinal direction.
  • the casing 2 is divided into a front end and a rear end in the longitudinal direction, and the casing 2 includes a head casing 21 at the front end and a casing 22 at the rear end.
  • the casing 22 is usually made of plastic material, and the head casing 21 is usually made of metal.
  • the casing 22 and the head casing 21 are integrally fixedly connected by screws.
  • the motor 23 is housed in a casing 22, and the motor 23 has a motor shaft 24.
  • the motor shaft 24 is driven by a motor 23.
  • the axis X2 of the motor shaft 24 also extends in the longitudinal direction.
  • Motor 23 drives motor shaft 24 for rotational movement about its axis.
  • a switch (not shown) is provided at the end of the motor 23 for turning on the motor or turning off the motor.
  • the housing 22 is provided with a triggering member 25 connected to the switch for triggering the switch to open or close the motor.
  • the triggering member 25 has an open position for activating the motor and a closed position for closing the motor.
  • the output shaft 26 is disposed in the head case 21 in the vertical direction.
  • the axis X1 of the output shaft 26 is substantially perpendicular to the axis X2 of the motor shaft.
  • the output shaft 26 is rotatable about its own axis X1 at a certain swing angle, and the swing direction is as shown by a double arrow a in FIG.
  • One end of the output shaft 26 is detachably coupled to the working head 27.
  • a transmission mechanism disposed between the motor shaft 24 and the output shaft 26 is further disposed inside the casing 2.
  • the transmission mechanism includes an eccentric transmission mechanism 3, and the function thereof is to drive the motor shaft.
  • the rotational motion of 24 translates into a rotational reciprocating oscillating motion of the output shaft 26.
  • the eccentric transmission mechanism 3 includes an eccentric device 31 and a fork assembly.
  • the eccentric device 31 is mounted on the motor shaft 24, and the fork assembly is mounted on the output shaft 26.
  • the eccentric device 31 and the fork assembly are connected to each other.
  • the fork assembly includes a first fork member 4 and a second fork member 32.
  • the first fork member 4 connects the eccentric device 31 and the second fork member 32.
  • the eccentric device 31 includes at least two drive members 33.
  • the drive member 33 can be mounted on the motor shaft 24 in a rotationally fixed manner so as to rotate together with the rotational movement of the motor shaft 24.
  • the plurality of driving members 33 are sequentially arranged in the direction of the axis X2 of the motor shaft 24. And in a preferred embodiment This interval is set with a certain gap.
  • the drive member 33 can have a variety of specific forms.
  • the driving member 33 is a ball bearing which is common in the industry.
  • the plurality of drive members 33 have the same radius and may have different radii.
  • the drive member 33 of the present invention is freely selectively eccentric or non-eccentric with respect to the center of the motor shaft 24. In embodiments having a certain eccentricity, the plurality of drive members 33 may have eccentricities of the same size, or may have eccentricities of different sizes, respectively.
  • the drive member 33 includes a first drive member 331 and a second drive member 332, wherein the first drive member 331 is adjacent to the motor 23 or remote from the output shaft 26.
  • the second drive member 332 is remote from the motor 23 or near the output shaft 26.
  • the eccentric device 31 further includes a first eccentric block 333 and a second eccentric block 334 that are fixedly coupled to the motor shaft 24.
  • the first eccentric block 333 and the second eccentric block 334 are sequentially axially connected to the motor shaft 24 . That is, one end of the first eccentric block 333 is connected to the motor shaft 24, and the other end thereof is connected to the second eccentric block 334.
  • the first eccentric block 333 is offset from the axis X2 side of the motor shaft, and the second eccentric block 334 is offset from the same side of the axis X2 of the motor shaft.
  • the axes of the first eccentric block 333 and the second eccentric block 334 are respectively parallel.
  • the eccentricities of the first eccentric block 333 and the second eccentric block 334 are not the same.
  • the eccentricity of the first eccentric block 333 is smaller than the eccentricity of the second eccentricity 334.
  • the first driving member 331 is mounted on the first eccentric block 333 in a relatively movable manner
  • the second driving member 332 is mounted on the second eccentric block 334 in a relatively movable manner.
  • the second fork member 32 is as shown in FIG.
  • the second fork member 32 is for coupling with the eccentric device 31 and the output shaft 26, respectively.
  • the second fork member 32 mainly includes a fork portion 34.
  • the fork portion 34 includes two fork-shaped fork arms 341 disposed substantially in a U shape, and the two fork arms 341 are parallel to each other.
  • the fork arm 341 is surrounded by the radially outer side of the driving member 33 such that the inner side surface of the fork arm 341 is in contact with the outer surface of the driving member 33 to be coupled.
  • the fork arm 341 is not directly connected to the driving member 33, but is coupled by other members.
  • the second fork member 32 further includes a socket portion 35 for socketing the output shaft 26.
  • the ferrule 35 has a hollow cylindrical structure extending in the same direction as the axis X1 of the output shaft.
  • the socket portion 35 can be integrally formed with the fork portion 34.
  • the fork assembly further includes a first fork member 4 located between the eccentric device 31 and the second fork member 32.
  • the first fork member 4 has a first cooperation portion 41 that cooperates with the driving member 33 and a second coordination portion 42 that cooperates with the second fork member 32.
  • the first fork member 4 is operatively movable to connect the first coordination portion 41 with a different drive member 33 while the second coordination portion 42 and the second portion
  • the forks 32 are connected at different positions. Due to the cooperation with the different positions, the amplitude of the movement of the driving member 33 by the first fork member 4 to drive the second fork member 32 is different, so that the output shaft 26 has different swinging angles.
  • first fork member 4 has a first swing position as shown in FIG. 16 and a second swing position as shown in FIG.
  • the first fork member 4 is movable back and forth between a first swing position and a second swing position.
  • the first swing angle position corresponds to a position at which the output shaft 26 outputs a small swing angle
  • the second swing angle position corresponds to a position at which the output shaft 26 outputs a large swing angle.
  • the oscillating power tool 1 thus has at least two different operating modes.
  • the first fork member 4 is moved in such a manner as to rotate about a rotation shaft 43.
  • the axis X3 of the rotating shaft 43 extends in the direction of the axis X1 of the vertical output shaft and the direction of the axis X2 of the motor shaft.
  • the first fork member 4 is provided with a first boss 44, and the first boss 44 has a first through hole 441 through which the rotating shaft 43 is received.
  • the second fork member 32 is provided with a second through hole 351 for receiving the rotation of the rotating shaft 43.
  • the sleeve portion 35 of the second fork member 32 is provided with a second boss 352, and the second through hole 351 is located on the second boss 352.
  • the shaft 43 can be a pin. After the first through hole 441 and the second through hole 351 are mounted and aligned, the pin shaft sequentially passes through the first through hole 441 and the second through hole 351.
  • the first fork member 4 is pivotable relative to the second fork member 32 about the rotation shaft 43. After the first fork member 4 is moved, the first coordination portion 41 is selectively coupled to the first driving member 331 or the second driving member 332, and the second coordination portion 42 is selectively engageable with the second fork member 32.
  • the fork arms 341 are connected at different positions.
  • the first cooperation portion 41 is connected to the driving member 33 by surface contact.
  • the first coordination portion 41 includes a first mating surface 411 for connecting the first driving member 331 and a second mating surface 412 for connecting the second driving member 332.
  • the first mating surface 411 is The radial distance of the first eccentric block 333 is different from the radial distance of the second mating surface 412 to the second eccentric block 334. The radial distance of the first mating face 411 is smaller.
  • first mating face 411 and the second mating face 412 are not coplanar.
  • first mating surface 411 can also be disposed coplanar with the second mating surface 412.
  • first fork member 4 has a substantially U-shaped configuration and has two intermediate arms 45.
  • the intermediate arm 45 is located between the second fork member 32 and the driving member 33.
  • the two intermediate arms 45 are substantially parallel, one end of which is connected as a connection end by a connection structure 48 and the other end is a free end.
  • the first boss 44 and the rotating shaft 43 are disposed on the connecting structure 48 of the intermediate arm 45.
  • the first coordination portion 41 is provided at the free end of the intermediate arm 45.
  • the free end of the intermediate arm 45 is a forked structure having two branches, the first mating surface 411 is located on one of the branches, and the second mating surface 412 is located on the other branch.
  • the second cooperation portion 42 is coupled to the second fork member 32 by surface contact.
  • the second coordination portion 42 includes a third mating surface 421 and a fourth mating surface 422.
  • the third mating surface 421 and the fourth mating surface 422 are respectively connected to different positions of the inner side surface of the fork arm 341.
  • the fork arms 341 extend in parallel along the axis X2 of the motor shaft 24, so that the inner sides of the two fork arms 341 are also parallel to each other, so the third mating surface 421 and the fourth mating surface 422 are coplanar. Therefore, the radial distance between the third mating surface 421 and the fourth mating surface 422 to the motor shaft 24 is the same.
  • the second coordination portion 42 is also located at the free end of the intermediate arm 45.
  • the first coordination portion 41 is disposed on a side of the intermediate arm 45 facing the driving member 33, and the second coordination portion 42 is disposed at a side of the intermediate arm 45 facing the fork assembly 32.
  • the third mating surface 421 is opposite to the first mating surface 411
  • the fourth mating surface 422 is opposite to the second mating surface 412 . That is, the third mating surface 421 is closer to the motor shaft 24, and the fourth mating surface 422 is further away from the motor shaft 24.
  • the first mating surface 411 of the first fork member 4 is connected to the first driving member 331, and the third mating surface 421 is connected to the inner side of the fork arm 341.
  • the second mating surface 412 and the fourth mating surface 422 are in a free state, and no surface is connected; when the first fork member 4 is moved to the second swing position, the first fork member 4 is The second mating surface 412 is connected to the second driving member 332, and the fourth mating surface 422 is connected to the inner side of the fork arm 341.
  • the first mating surface 411 and the third mating surface 421 are in a free state, and are not connected to any surface.
  • the position at which the third mating surface 421 is coupled to the inner side surface of the fork arm 341 and the position at which the fourth mating surface 422 is connected to the inner side surface are different.
  • the eccentric transmission mechanism 3 further includes a holding mechanism 5.
  • the function of the holding mechanism 5 is that the first fork member 4 is held at the current position.
  • the holding mechanism 5 can stably hold the first fork member 4 at the first swing position or the first
  • the second swing position prevents the first fork member 4 from leaving the first swing position or the second swing position during operation due to accidental vibration.
  • the holding mechanism 5 is located between the second fork member 32 and the first fork member 4.
  • the holding mechanism 5 includes a first elastic member 51 and a positioning member 52.
  • Positioning member 52 is subject to The biasing action of the first elastic member 51 abuts against the first fork member 4, thereby positioning and holding the first fork member 4.
  • the user only needs to overcome the biasing action of the first elastic member 51.
  • the positioning member 52 is inclined at an angle to the biasing direction of the first elastic member 51.
  • the first fork member 4 is connected in the direction.
  • the first fork member 4 includes a first V-shaped structure 53 disposed toward the positioning member 52.
  • the first V-shaped structure 53 is located on the intermediate arm 45 of the first fork member 4.
  • the first V-shaped structure 53 protrudes inward with respect to the surface of the intermediate arm 45.
  • the first V-shaped structure 53 includes two opposite first inclined faces 531 and a second inclined face 532, and the first inclined face 531 and the second inclined face 532 constitute a V-shape.
  • a second V-shaped structure 54 is provided at a corresponding position on the positioning member 52.
  • the second V-shaped mechanism 54 projects toward the first fork member 4 such that the first V-shaped structure 53 and the second V-shaped structure 54 are relatively convex.
  • the second V-shaped structure 54 also has a third slope 541 and a fourth slope 542 that form a V-shape.
  • the first slope 531 can only be connected to the third slope 541, and the second slope 532 can only be connected to the fourth slope 542.
  • the first elastic member 51 biases the third inclined surface 541 to connect the first inclined surface 531, and the two inclined surface joints can function to maintain the first swing angle position.
  • the user overcomes the biasing force of the first elastic member 51 to cause the first slope 531 and the third slope 541 to slide relative to each other until the apex of the slope is moved.
  • the second ramp 532 then begins to connect the fourth ramp 542.
  • the biasing force of the first elastic member 51 is to push the second inclined surface 532 to move relative to the fourth inclined surface 542, and is to move toward the bottom of the inclined surface.
  • the second slope 532 is coupled to the fourth slope 542.
  • the second V-shaped structure 54 of the positioning member 52 also has two.
  • the first elastic member 51 is located between the two second V-shaped structures 54, and two ends of the first elastic member 51 are respectively connected to the second V-shaped structure 54.
  • the second fork member 32 further includes a receiving groove 55 that can accommodate the first elastic member 51.
  • the receiving groove 55 is located on the side of the socket portion 35 of the second fork member 32 and is fixedly connected to the socket portion 35.
  • the socket portion 35 and the receiving groove 55 are integrally formed.
  • the accommodating groove 55 is a passage that penetrates forward and backward.
  • the first elastic member 51 is located in the passage.
  • the oscillating power tool 1 further has an adjustment mechanism 6 for adjusting the eccentric transmission mechanism 3 such that the output shaft 26 has different oscillating angles.
  • the eccentric transmission mechanism 3 includes a first fork member 4, and the adjustment mechanism 6 moves by adjusting the first fork member 4 such that the output shaft 26 has a different pendulum Moving angle.
  • the adjustment mechanism 6 is disposed on the housing 2 for the user to adjust its operation.
  • the adjustment mechanism 6 is disposed on the head casing 21 to facilitate control of the first fork member 4.
  • the adjustment mechanism 6 can have two, disposed on both sides of the first fork member 4. There may also be only one adjustment mechanism 6 provided on one side of the first fork member 4.
  • the adjustment mechanism 6 is carried out in such a manner as to be rotationally adjusted about its adjustment axis X4.
  • the adjustment axis X4 is disposed in parallel with the axis of rotation axis X3, but is not coaxial, but is spaced apart by a certain distance.
  • the adjustment mechanism 6 includes an operation unit 61 movably connecting the housing 2 and a movable connection operation unit 61 and a transmission unit 62 of the first fork member 4 for rotating operation about the adjustment axis X4, and the transmission unit 62 is for The turning operation of the operating unit 61 is converted into a rotation of the first fork member 4 between the first swing position and the second swing position.
  • the operation unit 61 includes an operation member 611 that is directly operated by a user, and a cam member 612 that mates with the operation member 611.
  • the operating member 611 and the cam member 612 are form-fitted such that there is no relative rotation between the operating member 611 and the cam member 612.
  • the operating member 611 has a convex first shape 613 and the cam member 612 has a concave second shape 614.
  • the first shape 613 and the second shape 614 are configured such that the rotational operation of the operating member 611 causes the cam member 612 to rotate together.
  • the first shape 613 can also be recessed and the second shape 614 can be raised.
  • the first shape 613 and the second shape 614 may be an irregular shape, a regular shape (for example, a square, a trapezoid), or a combination of regular shapes.
  • the cam member 612 has a contoured cam structure 615 in addition to the second shape 614.
  • the contour of the cam structure 615 is used to connect with the transfer unit 62.
  • the center of rotation of the cam structure 615 is located on the adjustment axis X4.
  • the transfer unit 62 includes a receiving member 621 that cooperates with the cam structure 615 and a transmitting portion 622 for connecting the second fork member 32.
  • the receiving member 621 and the transmitting portion 622 are preferably integrally formed.
  • the receiving member 621 includes a pair of forked arm structures for receiving the cam structure 615.
  • the contour of the cam structure 615 is connected between the fork arms of the receiving member 621.
  • the rotation of the cam structure 615 can drive the corresponding movement of the receiving member 621 and the transmitting portion 622. Since the transmitting portion 622 is coupled to the first fork member 4, the movement of the transmitting portion 622 causes the first fork member 4 to move accordingly.
  • the fastener 616 integrally connects the cam member 612, the end cap 636 and the operating member 611 in the direction of the adjustment axis X4, and the fastener 616 may specifically be a screw, a pin or the like.
  • the transmitting portion 622 includes a pair of fork arms.
  • the first fork member 4 has at least one lug 46.
  • the lug 46 is located in the middle of the pair of fork arms. Thus, when the lug 46 is in the first swing position or the second swing position, the lug 46 and the transmission portion 622 are gapped. This is because high-speed vibration is generated due to the operation of the first fork member 4 at the first swing position or the second swing position, and the transmission portion 622 is disturbed by the lug 46 in order to prevent the high-speed vibration from being counteracted.
  • the fork arms of the transmission portion 622 are moved by the movement of the cam structure 615, so that the gap between the lug 46 and the transmission portion 622 is eliminated. Thus, the transmitting portion 622 comes into contact with the lug 46.
  • the lug 46 is disposed on the intermediate arm 45 of the first fork member 4 and protrudes outwardly relative to the intermediate arm 45.
  • the distance from the lug 46 to the rotating shaft 43 is smaller than the distance from the first cooperating portion 41 to the rotating shaft 43.
  • the lug 46 is located between the rotating shaft 43 and the first cooperating portion 41. Further, the lug 46 is located between the rotating shaft 43 and the first V-shaped structure 53.
  • the adjustment mechanism 6 further includes a limiting unit 63 that limits the operating unit 61.
  • the limiting unit 63 includes a second elastic member 631 that connects the operating member 611, a limiting member 632 that connects the operating member 611 through the second elastic member 631, and a limiting slot 633 that accommodates the limiting member 632 for rotation.
  • One end of the second elastic member 631 is connected to the operating member 611, and the other end is connected to the limiting member 632.
  • the limiting member 632 can be accommodated in the limiting slot 633 for rotation.
  • the limiting groove 633 is a substantially arc-shaped groove.
  • the two ends of the arc-shaped groove are respectively provided with limiting grooves 634 which are radially outwardly convex with respect to the limiting groove 633.
  • the limiting grooves 634 respectively correspond to the first swing angle. Position and second swing position.
  • the limiting member 632 is further provided with an outwardly protruding limiting block 635, and the biasing lower limit block 635 of the second elastic member 631 is outwardly biased.
  • the limiting member 632 is operatively rotationally moved in the limiting slot 633, and the limiting block 635 is biased into contact with the sidewall of the limiting slot 633.
  • the limit block 635 moves into the limit groove 634, thereby forming a stable snap.
  • the first fork member 4 is moved to the first swing position.
  • the user pushes the stopper 632 against the biasing force of the second elastic member 631, so that the limiting block 635 is disengaged from the limiting groove 634.
  • the limiting member 632 can slide in the limiting groove 633 without resistance. Knowing that sliding to the other limiting groove 634, the limiting block 635 is again snapped to the corresponding limiting groove 635 for locking.
  • the first fork member 4 is moved to the second swing position.
  • an indication structure can also be provided at the position of the corresponding limiting groove 634 of the housing 2 to facilitate the user to understand the working mode of the currently oscillating power tool 1.
  • the indication structure can be an arrow, an illustration, and the like.
  • a limit slot 633 is preferably provided on the end cap 636.
  • the end cap 636 is fixed to the housing 2 by screws.
  • the end cap 636 is also provided with a third perforation 637 that receives the passage of the cam member 612 portion such that the second shape 614 of the cam member 612 and the cam structure 615 are respectively located on opposite sides of the end cap 636.
  • FIG. 13 is an overall schematic view of the transfer unit 62 in the adjustment mechanism 6.
  • the delivery slip In addition to the above-mentioned accommodating member 621 and the transmitting member 622, the element 62 further includes a limiting portion and a fitting portion 6213.
  • the limiting portion includes a first limiting portion 6211 and a second limiting portion 6212. The first limiting portion 6211 and the second limiting portion 6212 are respectively disposed on the transmitting unit 62 adjacent to the engaging portion 6213.
  • the oscillating power tool 1 further includes a stop mechanism movably disposed relative to the housing 2, the stop mechanism having two different positions.
  • the stopping mechanism When the triggering member 25 activates the motor 23, the stopping mechanism is located at the first position, preventing the adjusting mechanism 6 from adjusting the eccentric transmission mechanism 3; when the adjusting mechanism 6 adjusts the eccentric transmission mechanism 3, the stopping mechanism is located at the second position, and the triggering member 25 is blocked.
  • the motor 23 is started.
  • the stopping mechanism When the stopping mechanism is in the first position, the stopping mechanism is connected with the triggering member 25 while being in contact with the limiting portion, so that the adjusting mechanism 6 can be prevented from adjusting the eccentric transmission mechanism 3; when the stopping mechanism is in the second position, the stop is stopped.
  • the mechanism is slidably engaged with the mating portion and is coupled to the trigger member 25 so that the trigger member 25 can be prevented from starting the motor 23.
  • the stopping mechanism is located at the first position, and the position of the swinging angle is not adjusted by the user when the swinging power tool 1 is turned on; the stopping mechanism is located at the second position, and when the swinging angle is not adjusted, the user cannot trigger the switch and cannot start. Swing power tool.
  • the stop mechanism includes a stopper 7 and a third elastic member 74.
  • the arc of the outer contour of the stopper 7 matches the arc of the contact fixing of the casing 22 and the head casing 21.
  • the stopper 7 includes a contact portion 72, a stopper portion 73, a shaft hole 71, and a pivot shaft 711.
  • the shaft hole 71 is for mating with the pivot shaft 711.
  • the pivot axis Y2 of the pivot shaft 711 is parallel to the output shaft axis X1 and perpendicular to the axis X2 of the motor shaft.
  • the stopper portion 73 is located at the opposite end of the pivot shaft 711, and the contact portion 72 is located between the stopper portion 73 and the pivot shaft 711.
  • the third elastic member 74 is disposed between the stopper 7 and the housing 2 to provide an elastic force that urges the contact portion 72 to be coupled to the trigger member 25.
  • the specific form of the third elastic member 74 in this embodiment may be a spring or an elastic column or the like.
  • the contact portion 72 When the stop mechanism is in the first position, the contact portion 72 is coupled to the trigger member 25, and the stopper portion 73 is in contact with the limit portion. Specifically, when the oscillating power tool 1 is in the first swing position, the stopping portion 73 is in contact with the first limiting portion 6211; when the oscillating power tool 1 is in the second swing position, the stopping portion 73 and the The second limiting portion 6212 is in conflict. When the stop mechanism is in the second position, the stop portion 73 is slidably engaged with the engaging portion 6213, and the contact portion 72 is coupled to the trigger member 25.
  • the trigger member 25 is specifically a switch lever including a first contact portion 251 and a second contact portion 252 .
  • the contact portion 72 is connected to the triggering member 25, It is meant that the contact portion 72 is movably connected to the first contact portion 251 of the trigger member 25.
  • the second contact portion 252 in the trigger member 25 is for connection with a switch (not shown).
  • the second contact portion 252 pulls the switch (not shown) by the slip trigger member 25.
  • the switch (not shown) opens the motor 23 for a certain stroke. Therefore, the second contact portion 252 can cause the switch (not shown) to open the motor 23 only when the trigger member 25 is slid to a certain stroke.
  • the certain stroke is the distance from the closed position of the trigger member 25 to the open position.
  • the trigger member 25 is specifically configured as a switch lever, and the switch is used to start or shut down the motor by sliding. It will be readily apparent to those skilled in the art that the specific form of the trigger member 25 can also be other knobs or buttons to activate or deactivate the motor by rotating the switch. Of course, when the specific form of the trigger member 25 changes, the structure of the stopper member is also modified accordingly.
  • the stopper member and the trigger member are fixedly coupled together.
  • the trigger member is specifically a switch lever including a first contact portion and a second contact portion.
  • the trigger member is slidably coupled to the housing.
  • the stop mechanism includes a stop member that includes a contact portion and a stop portion.
  • the contact portion is fixedly connected to the trigger member. Specifically, the contact portion is fixedly connected to the first contact portion of the trigger member. The contact portion is momentarily connected to the first contact portion.
  • the stop mechanism When the trigger member activates the motor 23, the stop mechanism is in the first position, preventing the adjustment mechanism 6 from adjusting the eccentric transmission mechanism 3. When the adjustment mechanism 6 adjusts the eccentric transmission mechanism 3, the stop mechanism is in the second position, preventing the trigger member 25 from starting the motor 23.
  • the stop portion When the stop mechanism is in the first position, the stop portion interferes with the limit portion. Specifically, when the oscillating power tool 1 is in the first swing position, the stopping portion is in contact with the first limiting portion 6211; when the oscillating power tool 1 is in the second swing position, the stopping portion and the second limit The bit portion 6212 is in conflict. When the stop mechanism is in the second position, the stop portion is in slip fit with the mating portion 6213.
  • the operation method of the first embodiment of the present invention will be described in detail below.
  • the structural state between the adjustment mechanism, the stopper mechanism, and the trigger member when the oscillating power tool 1 is in a different state, the structural state between the adjustment mechanism, the stopper mechanism, and the trigger member. It is assumed that the initial position of the oscillating power tool 1 is the first position shown in FIG.
  • the first mating surface 411 of the first limiting portion 41 of the first fork member 4 is connected to the first driving member 331 while the fourth mating surface 422 facing the first mating surface 411 and the second dialing
  • the fork 34 of the fork member 32 is connected, and the second mating surface 412 is at this time.
  • the third mating surface 413 is in a free state.
  • the output shaft 26 of the oscillating power tool 1 When the oscillating power tool 1 is started, the output shaft 26 of the oscillating power tool 1 outputs a rotational reciprocating oscillating motion of the first oscillating angle by the transmission of the motor 23 and the eccentric transmission mechanism 3. As shown in FIG. 16 and FIG. 17, at this time, the triggering member 25 is in the open position, the first contact portion 251 of the triggering member 25 is connected to the contact portion 72, and the stopping portion 73 is in contact with the first limiting portion 6211.
  • the connection of the first limiting portion 6211 and the stopping portion 73 limits the movement of the adjusting mechanism, that is, The cam structure 615 and the receiving member 621 cannot drive the transmission unit 62 to rotate, so that the mating position of the first fork member 4 and the eccentric transmission mechanism 3 cannot be adjusted. That is, the stopping mechanism is connected with the switch, and the stopping mechanism is simultaneously connected to the first limiting portion, thereby preventing the movement of the adjusting mechanism from being adjusted when the starting angle is adjusted.
  • the user When the user needs to output the second swing angle according to the actual working condition, the user first adjusts the triggering member 25 to the closed position, and the stopper 7 is in the direction of the triggering member 25 under the elastic force of the third elastic member 74 (ie, away from the head shell). The direction 21 is rotated so that the stopper portion 73 is no longer in contact with the first stopper portion 6211.
  • the user operates the adjustment mechanism 6 again, and rotates the operating member 611 to rotate the transmission unit 62 through the cam structure 615 and the accommodating member 621. This eliminates the gap between the transmitting portion 622 of the transfer unit 62 and the lug 46 of the first fork member 4 until the transmitting portion 622 is coupled to the lug 46 and causes the first fork member 4 to also rotate.
  • the rotation of the first fork member 4 changes the mating relationship between the first cooperation portion 41 and the second cooperation portion 42, respectively.
  • the second mating surface 412 is connected to the second driving member 332, and the third mating surface 421 is connected to the shifting fork 34.
  • the first mating surface 411 and the fourth mating surface 422 are in a free state.
  • the output shaft 26 correspondingly outputs a rotational reciprocating oscillating motion of the second oscillating angle.
  • the first contact portion 251 of the trigger member 25 is coupled to the contact portion 72, and one end of the stopper portion 73 is in contact with the second stopper portion 6212.
  • the triggering member 25 is in the open position, the first contact portion 251 of the triggering member 25 is connected to the contact portion 72, and the stopping portion 73 is in contact with the second limiting portion 6212.
  • the connection of the second limiting portion 6212 and the stopping portion 73 restricts the movement of the adjusting mechanism, that is, The cam structure 615 and the receiving member 621 cannot drive the transmission unit 62 to rotate, so that the mating position of the first fork member 4 and the eccentric transmission mechanism 3 cannot be adjusted. That is, the stop mechanism is connected with the switch, and the stop mechanism is simultaneously connected to the second limit portion, thereby preventing the movement of the adjustment mechanism from being adjusted when the power is turned on.
  • the motor 23 is activated, due to the stop mechanism and the transfer unit. The interaction prevents the user from switching the trigger 25 to the open position.
  • the first contact portion 251 is coupled to the contact portion 72, and one end of the stopper portion 73 is slidably engaged with the engaging portion 6213.
  • the stopping portion 73 can only slide along the surface of the engaging portion 6213, and the desired opening motor cannot be generated in the actuating direction of the motor brake. Displacement, therefore, prevents the switch from moving from the closed position to the open position. This ensures that the user does not turn on the swinging power tool during the adjustment of the swing angle.
  • the trigger member 25 activates the motor 23, and the contact portion 72 of the stop mechanism is connected to the trigger member 25.
  • the stopping portion 73 of the stopping mechanism is in contact with the first limiting portion 6211 or the second limiting portion 6212, thereby preventing the adjusting mechanism 6 from adjusting the transmission mechanism 3 to prevent the swing angle from being adjusted when the power is turned on.
  • the contact portion 72 of the stop mechanism is coupled to the trigger member 25, and the stop portion 73 of the stop mechanism
  • the sliding engagement with the engaging portion 6213 prevents the trigger member 25 from starting the motor 23, ensuring that the swinging power tool is not turned on during the adjustment of the swing angle by the user.
  • FIGS. 22 to 24 Another embodiment of the oscillating power tool 10 is shown in FIGS. 22 to 24. Similar parts to those in the first embodiment will not be described, and the differences will be mainly described below.
  • the stopper 7 includes a pivot shaft 711, a shaft hole 71, a stopper portion 73, and a contact portion 72.
  • the pivot shaft 711 and the shaft hole 71 cooperate with each other.
  • the pivot shaft 711 is located between the stop portion 73 and the contact portion 72, and the stopper portion 73 is located at the opposite end of the contact portion 72.
  • the pivot axis Y2 of the pivot shaft 711 is perpendicular to the output shaft axis X1 and is perpendicular to the axis X2 of the motor shaft.
  • a third elastic member 74 (not shown) is disposed between the stopper 7 and the housing 2 to provide an elastic force that urges the contact portion 72 to be coupled to the trigger member 25.
  • the specific form of the third elastic member 74 may be a torsion spring.
  • the contact portion 72 of the stopper 7 is still connected to the first contact portion 251 of the trigger member 25, and the stopper portion 73 of the stopper member 7 and the cam member 612 are fitted.
  • the limiting portion and the fitting portion are disposed adjacent to the cam member 612. It can be seen that the limiting portion and the fitting portion can also be arranged on the operating unit.
  • the limit The bit portion includes a first limiting portion 6121 and a second limiting portion 6122.
  • a first limiting portion 6121 corresponding to the first swing angle and a second limiting portion 6122 corresponding to the second swing angle are respectively disposed on the cam member 612.
  • a fitting portion 6123 is provided between the first limiting portion 6121 and the second limiting portion 6122.
  • the specific shape of the first limiting portion 6121 and the second limiting portion 6122 can be set according to the specific shape of the stopping portion 73.
  • the shape of the stopper portion 73 is convex, and the shapes of the first limiting portion 6121 and the second limiting portion 6122 are set to be groove-shaped.
  • the stopping mechanism is connected to the triggering member 25, and the stopping mechanism simultaneously abuts against the first limiting portion 6121, thereby preventing the adjusting mechanism 6 from adjusting the transmission mechanism 3, thereby preventing the swinging angle from being adjusted when the power is turned on.
  • the user When the user needs to output the second swing angle according to the actual working condition, the user first slides the trigger member 25 to the closed position, and the stopper 7 is in the direction of the trigger member 25 under the elastic force of the third elastic member 74 (ie, away from the head) The casing 21 is rotated in the direction of the casing so that the stopper portion 73 is no longer in contact with the first stopper portion 6121.
  • the user operates the adjustment mechanism 6 again, and rotates the operating member 611 to rotate the transmission unit 62 through the cam structure 615 and the accommodating member 621.
  • the triggering member 25 is in the open position, the first contact portion 251 of the triggering member 25 is connected with the contact portion 72, and the stopping portion 73 is connected with the second limiting portion 6122 so that the stop is stopped.
  • the mechanism is incapable of moving, so the connection of the second limiting portion 6122 to the stop portion 73 limits the activity of the adjustment mechanism. That is, the cam structure 615 and the accommodating member 621 cannot drive the transmission unit 62 to rotate, so that the mating position of the first fork member 4 and the eccentric transmission mechanism 3 cannot be adjusted. That is, the stop mechanism is connected to the switch, and the stop mechanism At the same time, the second limiting portion is connected to organize the movement of the adjusting mechanism to avoid the swing angle being adjusted at the time of starting.
  • the motor 23 is started, due to the stop mechanism and transmission.
  • the interaction of the units prevents the user from slipping the trigger 25 to the open position.
  • the first contact portion 251 is coupled to the contact portion 72, and one end of the stop portion 73 is slidably engaged with the engaging portion 6123.
  • the stopper portion 73 slides along the surface of the fitting portion 6123, preventing the switch from moving from the closed position to the open position. This ensures that the user does not turn on the swinging power tool during the adjustment of the swing angle.
  • the trigger member 25 when the oscillating power tool is located at the first swing angle or the second swing angle, that is, the stop mechanism is located at the first position, the trigger member 25 is in a state of triggering the switch starter motor 23, and the contact portion 72 of the stop mechanism The triggering portion 73 is connected to the triggering member 25, and the stopping portion 73 of the stopping mechanism is in contact with the first limiting portion 6121 or the second limiting portion 6122, thereby preventing the adjusting mechanism from adjusting the transmission mechanism to prevent the swinging angle from being adjusted when the power is turned on.
  • the stop mechanism When the oscillating power tool is in the process of converting the first swing angle and the second swing angle, the stop mechanism is located at the second position, the contact portion 72 of the stop mechanism is coupled with the trigger member 25, and the stop portion 73 of the stop mechanism is along The surface of the engaging portion 6123 is slip-fitted, thereby preventing the trigger member 25 from triggering the switch-starting motor 23, ensuring that the swinging power tool 10 is not turned on during the adjustment of the swing angle by the user.
  • FIGs. 25 to 30 Another embodiment of the oscillating power tool 10' is shown in Figs. 25 to 30.
  • the adjustment structure (not shown) in this example is identical in principle to the adjustment structure in the first embodiment, and only the specific structure is different, and will not be described in detail herein. Due to the change of the adjustment structure, the position and specific structure of the stopper portion and the fitting portion, and the specific structure of the stopper mechanism are appropriately changed as needed.
  • the trigger member 25' is substantially the same as the trigger member 25 in the first embodiment, and includes a first contact portion 251' and a second contact portion 252'.
  • the second contact portion 252' is for connecting or disconnecting from a switch (not shown).
  • the trigger member 25' is normally slid in a direction close to the working head (not shown), the second contact portion 252' is activated by a switch (not shown), the trigger member 25' is moved to the open position, and the motor 23' is activated. .
  • the second contact portion 252' is disengaged from the switch (not shown), the trigger member 25' is moved to the closed position, and the motor 23' is stopped.
  • the first contact portion 251 ′ is engaged with the stopper mechanism. Unlike the trigger member 25 in the first embodiment, in the embodiment, the first contact portion 251 ′ is provided with the chute 2511 ′ and the stop. Institutional cooperation.
  • the chute is arranged obliquely with respect to the axis X2 of the motor shaft.
  • the moving direction of the trigger member 25' is arranged in parallel with the axis X2 of the motor shaft, and when the trigger member 25' moves, the stop mechanism is moved.
  • the stop mechanism includes a stop member 7' which, like the first embodiment, is such that the stop member 7' is movable between two positions.
  • the stopper 7' is located at the first position, allowing the triggering member 25' to move relative to the housing, preventing the adjusting mechanism from adjusting the transmission mechanism.
  • the triggering member 25' can start the motor, and the adjusting mechanism can not adjust the transmission mechanism, that is, cannot be adjusted.
  • the swing angle of the output shaft 26'; the stopper 7' is located at the second position, allowing the adjustment mechanism to adjust the transmission mechanism to prevent the trigger member 25' from moving relative to the housing, and the adjustment mechanism can be adjusted so that the output shaft 26' has a different The angle of the swing.
  • the difference from the first embodiment is the manner in which the stopper 7' is mounted and the specific structure.
  • the stopper 7' is movably housed in the casing 2'.
  • the stopper 7' is disposed between the head casing 21' and the casing 22', and the stopper 7' is The displacement of the direction of the axis X2 of the motor shaft is limited.
  • the structure is more compact, and the stopper 7' can be disposed between the fan 64' and the output shaft 26'.
  • the fan 64' is driven by a motor 23' for cooling the motor 23'.
  • the stopper 7' is substantially curved and includes a contact portion 72' and a stopper portion 73'.
  • the contact portion 72' and the stopper portion 73' are disposed substantially at both ends of the curved shape. Wherein, the contact portion 73' is received in the chute 2511'.
  • the stopping portion 73' is selectively engaged with the limiting portion or the engaging portion, the stopper 7' is located at the first position, the stopping portion 73' is in contact with the limiting portion; and when the stopper 7' is located at the second position, The blocking portion 73' is slidably engaged with the engaging portion.
  • the adjustment mechanism in this embodiment is the same as the first embodiment, and includes an operation unit (not shown) of the movable connection housing, a movable connection operation unit, and a transmission unit (not shown) of the eccentric transmission mechanism, and the transmission unit is used for the operation.
  • the movement of the unit translates into a rotation between the first swinging position 4 and the second swinging position of the first fork member 4.
  • the stopper portion and the fitting portion are not directly disposed on the transfer unit 62, but a stopper 63' which is rotationally moved by the operation unit about the stop axis X5 is provided.
  • the stopper 63' may be disposed on the transfer unit or between the transfer unit and the operation unit as long as the The stopper 63' can be driven by the operating unit. Of course, if the stopper 63' is relatively fixed, the operation unit can be prevented from moving.
  • the stopper 63' is rotatably disposed around the stopper axis X5 on the head case 21'.
  • the stopper portion and the fitting portion are provided on the stopper 63'.
  • the stopper 63' is rotated by the operation unit.
  • the stop axis X5 around the stop 63' is perpendicular to the axis X1 of the output shaft.
  • the stop axis X5 can also be perpendicular to the axis X2 of the motor shaft.
  • the stop axis X5 is perpendicular to a plane defined by the axis X1 of the output shaft and the axis X2 of the motor shaft.
  • the limiting portion includes a first limiting portion 6121' and a second limiting portion 6122' that are selectively engageable with the stopping portion 63'. Specifically, a first limiting portion 6121' corresponding to the first swing angle and a second limiting portion 6122' corresponding to the second swing angle are respectively disposed on the stopper 63'. A fitting portion 6123' is provided between the first stopper portion 6121' and the second stopper portion 612'2.
  • the specific shape of the first stopper portion 6121' and the second stopper portion 6122' can be set according to the specific shape of the stopper portion 73'.
  • the shape of the stopper portion 73' is columnar, and the shape of the first stopper portion 6121' and the second stopper portion 6122' is set to be a groove shape. And when the stopper portion 73' is engaged with the first stopper portion 6121' or the second stopper portion 6122', the extending direction of the groove is parallel to the axis X1 of the output shaft.
  • the output shaft 26' outputs several different swing angles, and the number of limit portions can be matched thereto.
  • the swing angle can be any angle
  • the limit portion can also be set to only one.
  • the triggering member 25' is in the open position, and the contact portion 72' of the stopper 7' is received on the first contact portion 251'.
  • the chute 2511' is located within the chute 2511' and is located away from the rear end of the working head.
  • the driving stopper 7' is rotated about the axis X2 of the motor shaft, so that the stopping portion 73' and the first limiting portion The 6121' is in conflict with the stop 7' in the first position.
  • the stopper 63' cannot be rotated and relatively fixed, thereby preventing the operation unit from moving.
  • the trigger member 25' is in the open position, and since the stopper portion 73' is in contact with the first stopper portion 6121', the user cannot rotate the operation unit. Therefore, the interference between the first limiting portion 6121' and the stopping portion 73' limits the movement of the adjusting mechanism, that is, the operating unit cannot drive the transmission unit to rotate, thereby preventing the adjusting mechanism from adjusting the transmission mechanism to prevent the swinging angle from being adjusted when the power is turned on.
  • the motor can be turned off simply by sliding the trigger member 25' away from the working head.
  • the stopper 7' is rotated about the axis X2 of the motor shaft, so that the stopper portion 73' is disengaged from the first stopper portion 6121'.
  • the triggering member 25' is in the closed position, and the contact portion 72' of the stopper 7' is received in the chute 2511' on the first contact portion 251', and is located at the front end of the chute 2511' relatively close to the working head. .
  • the trigger 25' can turn the motor on or off.
  • the adjustment structure can also be adjusted so that the output shaft 26' can output different swing angles.
  • the operation unit drives the stopper 63' to rotate about the stop axis X5 (not shown), so that the engaging portion 6213' and The stop portion 73' of the stopper 7' is slidably engaged.
  • the trigger member 25' is prevented from slipping in the direction toward the working head, i.e., the user cannot slide the trigger member 25 to the open position.
  • the engaging portion 6213' is slidably engaged with the stopper portion 73' of the stopper 7'.
  • the side surface of the stopper portion 73' slides on the outer surface of the fitting portion 6213', and the fitting portion 6213' is outside.
  • the surface may be an arcuate surface centered on a point on the stop axis X5.
  • the motor 23' is activated, and since the stopper 7' is in the second position, the engaging portion 6213' and the stop portion are 73' sliding fit, in this state, the engaging portion 6213' blocks the trigger member 25' from moving in the direction of the working head, so that the user cannot slide the trigger member 25 to the open position. It is ensured that the swinging power tool will not be turned on during the adjustment of the swing angle.
  • the trigger member 25' When the user adjusts to the second swing angle as needed, as shown in FIG. At this time, the trigger member 25' is in the closed position. The engaging portion 6213' is moved to a position separated from the stopper portion 73'. In this position, the trigger 25' can turn the motor on or off.
  • the adjustment structure can also be continuously adjusted so that the output shaft 26' can output different swing angles.
  • the trigger member 25' slides in a direction close to the working head (not shown), and drives the stopper 7' to rotate about the axis X2 of the motor shaft, so that the stopper portion 73' and the second portion
  • the limiting portion 6122' is in contact with the stop member 7' in the first position.
  • the contact portion 72' of the stopper 7' is received in the chute 2511' on the first contact portion 251', and is located at a rear end of the chute 2511' relatively far from the working head. In this state, the stopper 63' cannot be rotated and relatively fixed, thereby preventing the operation unit from moving.
  • the trigger member 25' is open In the open position, since the stopper portion 73' is in contact with the second stopper portion 6122', the user cannot rotate the operation unit. Therefore, the interference between the second limiting portion 6122' and the stopping portion 73' limits the movement of the adjusting mechanism, that is, the operating unit cannot drive the transmission unit to rotate, thereby preventing the adjusting mechanism from adjusting the transmission mechanism to prevent the swinging angle from being adjusted when the power is turned on.
  • the trigger member when the swinging power tool is located at the first swing angle or the second swing angle, that is, the stopper is in the first position, the trigger member is in the state of triggering the switch to start the motor, and the contact portion of the stopper is The triggering member is connected, and the stopping portion of the stopping member is in contact with the first limiting portion or the second limiting portion, thereby preventing the adjusting mechanism from adjusting the swinging angle, so as to prevent the swinging angle from being adjusted when the power is turned on.
  • the stopping member When the swinging power tool is in the process of converting the first swinging angle and the second swinging angle, the stopping member is located at the second position, the contact portion of the stopping member is connected with the triggering member, and the stopping portion of the stopping member is along the engaging portion.
  • the surface slip fits, preventing the trigger from triggering the switch to start the motor, ensuring that the swinging power tool is not turned on during the adjustment of the swing angle.
  • the present invention is not limited to the specific embodiment structures, and the structures based on the inventive concept are all within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Portable Power Tools In General (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

一种摆动动力工具（1），包括：具有启动和关闭电机（23）的开关；用于触发开关的触发件（25）；传动机构；用于使摆动动力工具（1）具有不同摆动角度的调节机构（6）；摆动动力工具（1）还包括相对壳体（2）活动设置的止挡机构，止挡机构具有两个位置；开关启动电机（23）时，止档机构位于第一位置，阻止调节机构（6）调节传动机构；调节机构（6）调节传动机构时，止挡机构位于第二位置，阻止开关启动电机（23）。用户不能在摆动动力工具（1）开机时调节摆动角度；在调节机构（6）调节摆角过程中，即调节机构（6）未调节到位时，用户无法开机。该技术方案增强了摆动动力工具（1）的可靠性以及操作的安全性。

Description

摆动动力工具 技术领域
本发明涉及一种电动工具，尤其涉及一种手持式摆动动力工具。
背景技术
多功能机是业界常见的手持式摆动动力工具，它的工作原理是输出轴围绕自身的轴线做摆动运动。因此，当用户在输出轴的自由端上安装有不同的工作头后，如直锯片、圆锯片、三角形磨砂盘、铲型刮刀后，可以实现多种不同的操作功能，如锯、切、磨、刮等，以适应不同的工作需求。
如图1和图2所示，传统的摆动动力工具100′主要包括电机11'、由主轴4'带动的偏心传动机构3、由偏心传动机构3带动的输出轴2'。其中，偏心传动机构3主要包括安装在主轴4'上的偏心件8'和安装在输出轴2'上的拨叉7'，主轴4'转动时带动偏心件8'转动，偏心件8'与拨叉7'配合后驱动拨叉7'旋转往复摆动，进而带动输出轴2'在一个固定的摆动角度范围内往复摆动。
然而，在使用过程中，用户期望能够摆动动力工具100′可以输出不同的摆动角度，以满足更多的工况应用。比如，当使用摆动动力工具100′安装直锯片6′在不同硬度的木质材料上开槽时，如果木质材料的硬度较低时，输出轴2′输出常用的较小摆动角度即可；而木质材料的硬度较高时，较小的摆动角度下，木屑不容易排出，从而使直锯片6′很容易被卡住，此时需要输出轴2′输出较大的摆动角度。
逐渐的，生厂商意识到这样的问题，改进了该类摆动动力工具的结构，增设了能够实现不同摆动角度的结构，例如通过双偏心件分别与拨叉的不同部位配接，或者在拨叉上设置一个中间件，通过中间件的不同部位分别于双偏心件配接，从而实现不同摆动角度的功能。然而这类能够实现多个摆动角度的摆动动力工具，当用户在摆动动力工具工作时调节摆动角度，会降低机构的可靠性，甚至对用户的身体构成伤害。当对摆动动力工具的摆动角度未调节到位时，用户就将工具开启，可能造成工具或者其他物体的损坏，甚至对用户的身体也会构成伤害。
发明内容
本发明所要解决的技术问题是：提供一种操作安全的摆动动力工具。
为解决上述问题，本发明的技术方案是：一种摆动动力工具包括，壳体；电机，收容在所述壳体内，具有电机轴；开关，与所述电机相连，用于开启电机运转或者关闭电机运转；触发件，活动设置在所述壳体内，且与所述开关相连，用于触发所述开关开启或者关闭所述电机；输出轴，由所述电机轴驱动做围绕自身轴线的摆动；传动机构，将所述电机轴的旋转运动转化为所述输出轴的摆动，所述传动机构包括安装在所述电机轴上的偏心装置及连接所述偏心装置和输出轴的拨叉组件；调节机构，设置在所述壳体上，用于调节所述传动机构，使得所述输出轴具有不同的摆动角度；其中，所述摆动动力工具还包括相对壳体活动设置的止挡机构，所述止挡机构具有两个位置，所述开关启动所述电机时，所述止档机构位于第一位置，阻止所述调节机构调节所述传动机构；所述调节机构调节所述传动机构时，所述止挡机构位于第二位置，阻止所述开关启动所述电机。
优选的，所述调节机构包括限位部和配合部；当所述止挡机构位于第一位置时，所述止挡机构与触发件连接，同时与所述限位部抵触，用于阻止所述调节结构调节所述传动机构；当所述止挡机构位于第二位置时，所述止挡机构与所述配合部滑移配合，同时所述止挡机构与所述触发件连接，用于阻止所述开关启动所述电机。
优选的，所述触发件包括滑动连接在壳体上的开关杆，所述止挡机构包括止挡件，所述止挡件上设有与开关杆连接的触接部和止挡部；当所述止挡机构位于第一位置时，所述止挡部与所述限位部抵触；当所述止挡机构位于第二位置时，所述止挡部与所述配合部滑移配合。
优选的，所述止挡机构包括枢转连接在所述壳体上的止挡件，所述止挡件上设有触接部和止挡部；当所述止挡机构位于第一位置时，所述触接部与所述触发件连接，所述止挡部与所述限位部抵触；当所述止挡机构位于第二位置时，所述止挡部与所述配合部滑移配合，所述触接部与所述触发件连接。
优选的，所述止挡机构还包括设置在止挡件和所述壳体之间的弹性件，所述弹性件提供促使所述触接部与所述触发件连接的弹性力。
优选的，所述调节机构包括活动连接壳体的操作单元和活动连接所述操作 单元以及所述传动机构的传递单元，所述操作单元包括围绕调节轴线进行转动操作的操作件以及连接所述操作件的凸轮件，所述传递单元包括可容纳所述凸轮件的容纳件以及用于连接所述传动机构的传递件，当所述凸轮件在所述容纳件内转动时，驱动所述传递件带动所述传动机构运动。
优选的，所述限位部和所述配合部相邻地设置在所述传递件上。
优选的，所述止挡件的枢转轴线平行于输出轴的轴线且垂直于电机轴的轴线。
优选的，所述止挡件的枢转轴位于所述止挡部的相对端，所述触接部位于所述枢转轴与所述止挡部之间。
优选的，所述限位部和所述配合部相邻地设置在所述凸轮件上。
优选的，所述止挡件的枢转轴线垂直于输出轴的轴线和电机轴的轴线。
优选的，所述止挡件的枢转轴位于所述止挡部与所述触接部之间，所述止挡部位于所述触接部的相对端。
为解决上述问题，本发明的另一个技术方案是：一种摆动动力工具，包括：壳体；电机，收容在所述壳体内，具有电机轴；触发件，活动设置在所述壳体内，用于触发所述电机开启或关闭；输出轴，由所述电机轴驱动做围绕自身轴线的摆动；传动机构，将所述电机轴的旋转运动转化为所述输出轴的摆动，所述传动机构包括安装在所述电机轴上的偏心装置及连接所述偏心装置和输出轴的拨叉组件；调节机构，设置在所述壳体上，用于调节所述传动机构，使得所述输出轴具有不同的摆动角度；所述摆动动力工具还包括相对壳体活动设置的止挡件，所述止挡件在两个位置之间活动，在第一位置，允许所述触发件相对于所述壳体活动，阻止所述调节机构调节所述传动机构；在第二位置，允许所述调节机构调节所述传动机构，阻止所述触发件相对于所述壳体活动。
优选的，所述的摆动动力工具包括所述调节机构包括限位部和配合部；所述止挡件位于所述第一位置时，所述止挡件与限位部抵触；所述止挡件位于第二位置时，所述止挡件与配合部滑移配合。
优选的，所述触发件上设有斜槽，所述止挡件包括触接部和止挡部，其中所述触接部收容在所述斜槽中；所述止挡件位于所述第一位置时，所述止挡部与限位部抵触；所述止挡件位于第二位置时，所述止挡部与配合部滑移配合。
优选的，所述限位部包括与所述止挡部可选择配合的第一、第二限位部。
优选的，所述配合部设置在所述第一、第二限位部之间。
优选的，所述调节机构包括活动连接壳体的操作单元、由所述操作单元驱动旋转运动的止动件，所述限位部和所述配合部设置在所述止动件上。
优选的，所述调节机构包括活动连接壳体的操作单元和活动连接所述操作单元以及所述传动机构的传递单元，所述限位部和所述配合部设置在所述操作单元上；或所述限位部和所述配合部设置在所述传递单元上。
优选的，所述止挡件围绕所述电机轴的轴线转动设置。
为解决上述问题，本发明的另一个技术方案是：一种摆动动力工具，包括：壳体；电机，收容在所述壳体内，具有电机轴；触发件，活动设置在所述壳体内，用于触发所述电机开启或关闭；输出轴，由所述电机轴驱动做围绕自身轴线的摆动；传动机构，将所述电机轴的旋转运动转化为所述输出轴的摆动；调节机构，设置在所述壳体上，用于调节所述传动机构，使得所述输出轴具有不同的摆动角度；所述摆动动力工具还包括设置在所述调节机构和所述触发件之间的止挡件，所述止挡件在两个位置之间活动，在第一位置，允许所述触发件相对于所述壳体活动，阻止所述调节机构调节所述传动机构；在第二位置，允许所述调节机构调节所述传动机构，阻止所述触发件相对于所述壳体活动。
与现有技术相比，本发明的摆动动力工具，通过设置止挡机构或止挡件，实现了在摆动动力工具开启过程中，用户无法调节摆动角度的位置；在调节摆动角度位置的过程中，即摆动角度未调节到位时，无法触发开关，进而不会启动摆动动力工具；从而极大地提高了所述摆动动力工具的可靠性以及所述摆动动力工具操作的安全性，避免零部件之间的磨损。
附图说明
以上所述的本发明的目的、技术方案以及有益效果可以通过下面的能够实现本发明的具体实施例的详细描述，同时结合附图描述而清楚地获得。
附图以及说明书中的相同的标号和符号用于代表相同的或者等同的元件。
图1是现有的一种摆动动力工具的剖面示意图。
图2是图1所示摆动动力工具的局部结构立体示意图。
图3是本发明的第一实施例的摆动动力工具的整体示意图。
图4是图3所示摆动动力工具部分结构的立体分解图。
图5是图3所示摆动动力工具的偏心传动机构的立体分解图。
图6是图3所示摆动动力工具的拨叉组件的整体示意图。
图7是图3所示摆动动力工具的第二拨叉件的整体示意图。
图8是图3所示摆动动力工具的保持机构的整体示意图。
图9是图3所示摆动动力工具的部分的内部剖面示意图。
图10是图9中的保持机构的沿平面A-A的剖面示意图。
图11是图3所示摆动动力工具的调节机构沿一角度的立体分解图。
图12是图3所示摆动动力工具的调节机构沿另一角度的立体分解图。
图13是图3所示摆动动力工具的传递单元的整体示意图。
图14是图3所示摆动动力工具的止挡件的整体示意图。
图15是图3所示摆动动力工具的触发件的整体示意图。
图16是图3所示摆动动力工具位于第一摆角位置时的整体示意图。
图17是图16所示摆动动力工具的局部结构配合示意图。
图18是图3所示摆动动力工具位于第二摆角位置时的整体示意图。
图19是图18所示摆动动力工具的局部结构配合示意图。
图20是图3所示摆动动力工具位于调节摆角过程时的整体示意图。
图21是图20所示摆动动力工具的局部结构配合示意图。
图22是本发明的第二实施例位于第一摆角位置时的剖视图。
图23是本发明的第二实施例位于第二摆角位置时的剖视图。
图24是本发明的第二实施例位于调节摆角过程时的剖视图。
图25是本发明的第三实施例的摆动动力工具的部分立体分解图。
图26是图25所示的摆动动力工具处于第一摆角位置的局部示意图，此时触发件处于开启位置。
图27是图25所示的摆动动力工具处于第一摆角位置的局部示意图，此时触发件处于关闭位置。
图28是图25所示的摆动动力工具位于调节摆角过程时的示意图。
图29是图25所示的摆动动力工具处于第二摆角位置的局部示意图，此时触发件处于关闭位置。
图30是图25所示的摆动动力工具处于第二摆角位置的局部示意图，此时触发件处于开启位置。
具体实施方式
本领域技术人员可以想到的是，本发明中摆动动力工具的具体结构可以有很多的变化形式，但其采用技术方案的主要技术特征与本发明相同或相似，均应涵盖于本发明保护范围内。
具体实施方式一
如图3至图4所示为一种摆动动力工具1，其具有大致沿一方向延伸的壳体2。定义该壳体2为沿纵向延伸。壳体2沿纵向分为前端和后端，壳体2包括位于前端的头壳21和位于后端的机壳22。机壳22通常为塑料材质，头壳21通常为金属材质。机壳22与头壳21之间通过螺钉一体固定连接。电机23收容在机壳22内，电机23具有电机轴24。电机轴24由电机23驱动。电机轴24的轴线X2同样沿纵向延伸。电机23驱动电机轴24围绕其轴线作旋转运动。电机23末端设有一开关(图中未示出)，用于开启电机运转或者关闭电机运转。另外机壳22上活动设有与开关连接的触发件25，用于触发所述开关开启或者关闭所述电机。相应的，触发件25具有启动所述电机的开启位置和关闭所述电机的关闭位置。输出轴26沿竖直方向设置在头壳21内。输出轴26的轴线X1大致与电机轴的轴线X2垂直。输出轴26可以围绕自身的轴线X1以一定的摆动角度作旋转往复摆动运动，摆动方向如图3中双箭头a所示。输出轴26的一端可拆卸地配接工作头27。
如图4所示，在壳体2的内部还设有设置在电机轴24和输出轴26之间的传动机构，在本实施例中，传动机构包括偏心传动机构3，其作用是把电机轴24的旋转运动转化为输出轴26的旋转往复摆动运动。偏心传动机构3包括偏心装置31和拨叉组件。偏心装置31安装在电机轴24上，而拨叉组件安装在输出轴26上。偏心装置31和拨叉组件相互连接。在本实施例中，拨叉组件包括第一拨叉件4和第二拨叉件32。第一拨叉件4把偏心装置31和第二拨叉件32连接起来。偏心装置31包括了至少两个驱动件33。驱动件33可以无相对转动地安装在电机轴24上，从而随电机轴24的旋转运动而一起作旋转运动。该多个驱动件33沿电机轴24的轴线X2方向依次排列。并且在优选的实施例中彼 此间隔一定间隙地设置。驱动件33可以具有多种具体的形式。在本实施例中，驱动件33为业界常见的滚珠轴承。该多个驱动件33具有同样的半径，也可以具有不同的半径。另外，本发明的驱动件33可自由选择地相对电机轴24中心的具有一定偏心距或不具有偏心距。在具有一定偏心距的实施例中，该多个驱动件33可以具有同样大小的偏心距，也可以分别具有不同大小的偏心距。
如图5所示的实施例中，驱动件33包括第一驱动件331和第二驱动件332，其中第一驱动件331靠近电机23或者说远离输出轴26。而第二驱动件332远离电机23或者说靠近输出轴26。而偏心装置31还包括了固定连接电机轴24的第一偏心块333和第二偏心块334。其中，第一偏心块333和第二偏心块334与电机轴24依次轴向连接。即第一偏心块333的一端连接电机轴24，其另一端连接第二偏心块334。第一偏心块333偏移设置于电机轴的轴线X2一侧、第二偏心块334偏移设置于电机轴的轴线X2的同一侧，第一偏心块333和第二偏心块334的轴线分别平行于电机轴的轴线X2。另外，第一偏心块333和第二偏心块334的偏心距并不相同。具体地，第一偏心块333的偏心距小于第二偏心距334的偏心距。而第一驱动件331不可相对运动地安装在第一偏心块333上，而第二驱动件332不可相对运动地安装在第二偏心块334上。
第二拨叉件32如图6所示。第二拨叉件32用于分别与偏心装置31和输出轴26联接。第二拨叉件32主要包括拨叉部34。拨叉部34在本技术领域中时常见的结构。拨叉部34包括两个叉状设置的拨叉臂341，大致呈U型设置，两个拨叉臂341相互平行。拨叉臂341包围在驱动件33的径向外侧，从而使的拨叉臂341的内侧面与驱动件33的外表面接触而联接。当然在本发明中，拨叉臂341并不与驱动件33直接连接，而是通过其他元件实现联接关系。另外，第二拨叉件32还包括用于与输出轴26套接的套接部35。套接部35呈中空的筒形结构，其延伸方向与输出轴的轴线X1方向一致。套接部35可以与拨叉部34一体成型。
在本实施例中，拨叉组件还包括了位于偏心装置31和第二拨叉件32之间的第一拨叉件4。如图7所示，第一拨叉件4具有与驱动件33配合的第一协同部41以及与第二拨叉件32配合的第二协同部42。第一拨叉件4可被操作地移动，从而使第一协同部41与不同的驱动件33连接，同时第二协同部42与第二 拨叉件32的不同位置连接。由于与不同位置配合，驱动件33通过第一拨叉件4带动第二拨叉件32进行运动的幅度就不同，从而使输出轴26具有不同的摆动角度。更进一步地，第一拨叉件4具有如图16所示的第一摆角位置和如图18所示的第二摆角位置。第一拨叉件4可在第一摆角位置和第二摆角位置之间来回移动。其中，第一摆角位置对应输出轴26输出小摆动角度的位置，第二摆角位置对应输出轴26输出大摆动角度的位置。从而摆动动力工具1具有至少两种不同的工作模式。
在本实施例中，第一拨叉件4以围绕一转轴43转动的方式进行移动。该转轴43的轴线X3沿垂直输出轴的轴线X1方向以及电机轴的轴线X2方向延伸设置。如图7所示，第一拨叉件4上设有第一凸台44，第一凸台44具有容纳转轴43穿过的第一穿孔441。如图6所示，而在第二拨叉件32上则设有容纳该转轴43穿过的第二穿孔351。进一步地，第二拨叉件32的套接部35上设有第二凸台352，第二穿孔351就位于该第二凸台352上。转轴43可以是销轴。第一穿孔441和第二穿孔351安装对齐后，销轴依次穿过第一穿孔441和第二穿孔351。第一拨叉件4可相对第二拨叉件32围绕转轴43进行枢转。当第一拨叉件4产生移动后，第一协同部41可选择地与第一驱动件331或者第二驱动件332连接，而第二协同部42可选择地与第二拨叉件32的拨叉臂341的不同位置连接。
如图5至图7所示，第一协同部41是通过面接触的方式连接到驱动件33上的。第一协同部41包括用于连接第一驱动件331的第一配接面411和连接第二驱动件332的第二配接面412。在本实施例中，由于第一驱动件331和第二驱动件332具有不同的半径，为了能够连接第一驱动件331或第二驱动件332的径向侧表面，第一配接面411到第一偏心块333的径向距离与第二配接面412到第二偏心块334的径向距离不同。第一配接面411的径向距离更小。换句话说，第一配接面411和第二配接面412并非共面设置。当然在其他实施例中，第一配接面411也可以与第二配接面412共面设置。另外，第一拨叉件4大致呈U型结构，具有两条中间臂45。中间臂45位于第二拨叉件32及驱动件33之间。两条中间臂45大致平行，其一端作为连接端而通过连接结构48连接，另一端为自由端。第一凸台44及转轴43就设置在中间臂45的连接结构48上。 而第一协同部41设置在中间臂45的自由端处。中间臂45的自由端为叉状结构，具有两个分支，第一配接面411位于其中一个分支上，第二配接面412位于另外一个分支上。安装后，当第一拨叉件4移动至第一摆角位置时，第一配接面411配合第一驱动件331，因而更靠近电机轴24。当第一拨叉件4移动至第二摆角位置时，第二配接面412配合第二驱动件332，因而更远离电机轴24。
如图5至图7所示，第二协同部42是通过面接触的方式连接到第二拨叉件32上的。第二协同部42包括第三配接面421和第四配接面422。在本实施例中，第三配合面421和第四配合面422分别和拨叉臂341的内侧面的不同位置连接。拨叉臂341沿电机轴24的轴线X2平行延伸，因此其两段拨叉臂341的内侧面也是相互平行的，所以第三配接面421和第四配接面422是共面设置的。因此第三配合面421与第四配合面422到电机轴24的径向距离相同。第二协同部42同样位于中间臂45的自由端。第一协同部41设置在中间臂45朝向驱动件33的侧面，第二协同部42设置在中间臂45朝向拨叉组件32的侧面。其中第三配接面421与第一配接面411相对设置，第四配接面422与第二配接面412相对设置。也就是说，第三配接面421更靠近电机轴24，第四配接面422更远离电机轴24。当第一拨叉件4移动至第一摆角位置时，第一拨叉件4的第一配接面411连接第一驱动件331，第三配接面421连接拨叉臂341的内侧面，此时第二配接面412及第四配接面422处于自由状态，并未连接任何表面；当第一拨叉件4移动至第二摆角位置时，第一拨叉件4的第二配接面412连接第二驱动件332，第四配接面422连接拨叉臂341的内侧面，此时第一配接面411及第三配接面421处于自由状态，并未连接任何表面。其中第三配合面421与拨叉臂341的内侧面连接时的位置和第四配合面422与内侧面连接时的位置不同。
如图8至图10所示，偏心传动机构3还包括了保持机构5。保持机构5的作用是第一拨叉件4保持在当前位置。在本实施例中，当第一拨叉件4移动至第一摆角位置或第二摆角位置时，保持机构5能够让第一拨叉件4稳定地保持在第一摆角位置或第二摆角位置，这样防止因意外振动而造成第一拨叉件4在工作中离开第一摆角位置或第二摆角位置。保持机构5位于第二拨叉件32和第一拨叉件4之间。保持机构5包括了第一弹性件51和定位件52。定位件52受 第一弹性件51的偏压作用，抵靠到第一拨叉件4上，从而对第一拨叉件4起到定位保持作用。而需要解除定位保持作用使第一拨叉件4主动进行移动时，用户只要克服第一弹性件51的偏压作用即可。为了使定位件52的定位保持作用足够可靠，同时又需要解除定位保持作用的作用力不能过大以避免影响操作体验，因此定位件52在与第一弹性件51偏压方向倾斜成一定角度的方向连接第一拨叉件4。第一拨叉件4包括了朝向定位件52设置的第一V型结构53。第一V型结构53位于第一拨叉件4的中间臂45上。第一V型结构53相对于中间臂45的表面向内侧突出。第一V型结构53包括两相对设置的第一斜面531和第二斜面532，该第一斜面531和第二斜面532构成了V字型。而在定位件52上的对应位置设有第二V型结构54。第二V型机构54朝向第一拨叉件4突起，从而第一V型结构53与第二V型结构54相对凸起。第二V型结构54同样具有构成V字型的第三斜面541和第四斜面542。第一斜面531只能和第三斜面541连接，第二斜面532只能和第四斜面542连接。当第一拨叉件4位于第一摆角位置时，第一弹性件51偏压第三斜面541连接第一斜面531，此时两斜面连接能够起到保持在第一摆角位置的作用。而当要移动第一拨叉件4至第二摆角位置时，用户克服第一弹性件51的偏压力使第一斜面531与第三斜面541产生相对滑动，直到移动越过斜面的顶点。然后第二斜面532开始连接第四斜面542。此时，第一弹性件51的偏压力是推动第二斜面532相对第四斜面542移动的，并且是向斜面的底部移动。当第一拨叉件4位于第二摆角位置后，第二斜面532与第四斜面542连接。在本实施例中，由于第一V型结构53的数量为两个，分别对称地位于中间臂45上。而定位件52的第二V型结构54同样具有两个。第一弹性件51位于该两个第二V型结构54之间，第一弹性件51的两端分别连接到第二V型结构54上。另外，第二拨叉件32还包括可容纳第一弹性件51的容纳槽55。容纳槽55位于第二拨叉件32的套接部35一侧并且固定连接套接部35。优选地，套接部35和容纳槽55一体成型。容纳槽55为前后贯通的通道。第一弹性件51即位于该通道中。
如图11和图12所示，摆动动力工具1还具有调节机构6，用于调节偏心传动机构3，使得输出轴26具有不同的摆动角度。偏心传动机构3包括第一拨叉件4，调节机构6通过调节第一拨叉件4移动，使得输出轴26具有不同的摆 动角度。调节机构6设置在壳体2上，便于用户对其操作调节。优选的，调节机构6设置在头壳21上，这样方便对第一拨叉件4进行控制。调节机构6可以具有两个，设置在第一拨叉件4的两侧。调节机构6也可以只有一个，设置在第一拨叉件4的一侧。调节机构6是以围绕其调节轴线X4旋转调节的方式进行的。在本实施例中，调节轴线X4与转轴轴线X3是平行设置的，但是并非共轴，而是间隔了一定距离。调节机构6包括了活动地连接壳体2的操作单元61和活动连接操作单元61以及第一拨叉件4的传递单元62，操作单元61用于围绕调节轴线X4旋转操作，传递单元62用于把操作单元61的转动操作转化为第一拨叉件4在第一摆角位置和第二摆角位置之间的转动。操作单元61包括用户直接操作的操作件611和配接操作件611的凸轮件612。操作件611和凸轮件612形状配合使得操作件611和凸轮件612之间无相对转动。操作件611具有凸起的第一形状613，凸轮件612具有下凹的第二形状614。第一形状613与第二形状614构成形配，从而操作件611的旋转操作带动凸轮件612一起旋转。在其他实施例中，第一形状613也可以下凹设计，而第二形状614凸起设计。而第一形状613和第二形状614可以是不规则形状、规则形状(例如方形、梯形)或者规则形状的组合。而凸轮件612除了具有第二形状614外，还具有轮廓渐变的凸轮结构615。凸轮结构615的轮廓用于与传递单元62连接。凸轮结构615的旋转中心位于调节轴线X4上。而传递单元62包括与凸轮结构615配合的容纳件621以及用于连接第二拨叉件32的传递部622。容纳件621和传递部622优选地一体成型。容纳件621包括一对叉形臂结构，用于容纳凸轮结构615。凸轮结构615的轮廓连接容纳件621的叉形臂之间。凸轮结构615的转动能够带动容纳件621及传递部622相应产生移动。由于传递部622连接第一拨叉件4，因此传递部622的移动会带动第一拨叉件4产生相应移动。紧固件616沿调节轴线X4方向将凸轮件612、端盖636和操作件611连接为一体，紧固件616具体可以为螺钉、销栓等。在本实施例中，传递部622包括一对叉形臂结构。而第一拨叉件4具有至少一个凸耳46。凸耳46位于该对叉形臂的中间。这样凸耳46在第一摆角位置或者第二摆角位置时，凸耳46与传递部622是存在间隙的。这是因为由于第一拨叉件4在第一摆角位置或者第二摆角位置工作会产生高速振动，为了避免该高速振动通过凸耳46反作用干扰传递部622。当 进行调节操作时，传递部622的叉形臂会受到凸轮结构615的带动而产生移动，从而使凸耳46与传递部622之间的间隙消除。这样传递部622就与凸耳46产生接触。随着传递部622的进一步移动会带动凸耳46及第一拨叉件4相应移动。在本发明中，凸耳46设置在第一拨叉件4的中间臂45上，并且相对中间臂45向外突出。凸耳46到转轴43的距离小于第一协同部41到转轴43的距离。换句话说，凸耳46位于转轴43与第一协同部41之间。进一步的，凸耳46位于转轴43与第一V型结构53之间。
为了使操作单元61快速准确地带动第一拨叉件4移动至第一摆角位置或第二摆角位置，调节机构6还包括对操作单元61限位的限位单元63。限位单元63包括连接操作件611的第二弹性件631、通过第二弹性件631连接操作件611的限位件632以及容纳限位件632进行转动的限位槽633。第二弹性件631的一端连接操作件611，另一端连接限位件632。限位件632可容纳在限位槽633中进行转动。限位槽633为大致呈弧形设计的槽，在弧形槽的两端分别设有相对限位槽633径向外凸的限位凹槽634，限位凹槽634分别对应第一摆角位置和第二摆角位置。同时，限位件632还设有向外凸的限位块635，在第二弹性件631的偏压作用下限位块635向外偏压。限位件632在限位槽633中被操作地旋转移动，限位块635被偏压接触限位槽633的侧壁。当转动至其中一个限位凹槽634时，限位块635移动至限位凹槽634中，从而形成稳定的卡接。此时正好第一拨叉件4移动至第一摆角位置。当需要移动第一拨叉件4时，用户克服第二弹性件631的偏压力按动限位件632，从而使得限位块635从限位凹槽634中脱离。然后限位件632就可以无阻力的在限位槽633中滑动。知道滑动至另一个限位凹槽634时，限位块635又卡接至对应的限位凹槽635实现锁定。此时第一拨叉件4移动至第二摆角位置。为了显示清楚，在壳体2的对应限位凹槽634的位置还可以设置指示结构，方便用户了解当前摆动动力工具1的工作模式。指示结构可以是箭头、图示说明等。另外，限位槽633优选地设置在端盖636上。端盖636通过螺钉固定在壳体2上。端盖636上还设有第三穿孔637，第三穿孔637容纳凸轮件612部分的穿过，从而使凸轮件612的第二形状614和凸轮结构615分别位于端盖636的两侧。
图13为调节机构6中传递单元62的整体示意图。在本实施例中，传递单 元62除了包括上述所讲的容纳件621以及传递件622，还包括限位部和配合部6213。在本实施例中，限位部包括第一限位部6211和第二限位部6212。第一限位部6211、第二限位部6212分别和配合部6213相邻地设置在传递单元62上。
再结合图4所示，摆动动力工具1还包括相对壳体2活动设置的止挡机构，止挡机构具有两个不同的位置。当触发件25启动电机23时，止挡机构位于第一位置，阻止调节机构6调节偏心传动机构3；当调节机构6调节偏心传动机构3时，止挡机构位于第二位置，阻止触发件25启动电机23。
当止挡机构位于第一位置时，止挡机构与触发件25连接，同时和限位部抵触，从而可以阻止调节机构6调节偏心传动机构3；当止挡机构位于第二位置时，止挡机构与配合部滑移配合，同时和触发件25连接，从而可以阻止触发件25启动电机23。止挡机构位于第一位置，实现了摆动动力工具1在开机时，用户无法调节摆动角度的位置；止挡机构位于第二位置，实现了摆动角度未调节到位时，用户无法触发开关，不能启动摆动动力工具。
在本实施例中，止挡机构包括止挡件7和第三弹性件74。止挡件7外轮廓的弧形与机壳22和头壳21的接触固定处的弧形相匹配。结合图14所示，止挡件7包括触接部72、止挡部73、轴孔71和枢转轴711。轴孔71用于和枢转轴711配合。枢转轴711的枢转轴线Y2平行于输出轴轴线X1，且垂直于电机轴的轴线X2。止挡部73位于枢转轴711的相对端，触接部72位于止挡部73与枢转轴711之间。第三弹性件74设置于止挡件7与壳体2之间，提供促使触接部72与触发件25连接的弹性力。第三弹性件74在本实施例中的具体形式可以为一弹簧或者弹性柱等。
当止挡机构位于第一位置时，触接部72与触发件25连接，止挡部73与限位部抵触。具体地，当摆动动力工具1处于第一摆角位置工作时，止挡部73与第一限位部6211抵触；当摆动动力工具1处于第二摆角位置工作时，止挡部73与第二限位部6212抵触。当止挡机构位于第二位置时，止挡部73与配合部6213滑移配合，触接部72与触发件25连接。
在本实施例中，如图15所示，触发件25具体形式为一开关杆，包括第一接触部251和第二接触部252。具体地，上述所述触接部72与触发件25连接， 是指触接部72与触发件25的第一触接部251活动连接。当触发件25向头壳21方向滑移一定距离时，止挡件7的触接部72与触发件25的第一接触部251连接。触发件25中的第二接触部252用于和开关(图中未画出)相连接。通过滑移触发件25，第二接触部252拉动开关(图中未画出)。开关(图中未画出)开启电机23有一定的行程，因此，只有当触发件25滑移转达到一定的行程，第二接触部252才能使得开关(图中未画出)开启电机23。一定的行程即为触发件25关闭位置到开启位置的距离。
在本实施例中，触发件25具体形式为开关杆，通过滑移带动开关启动或者关闭电机。本领域技术人员，很容易想到，触发件25的具体形式也可以为其他旋钮或者按钮，通过旋转带动开关启动或者关闭电机。当然，当触发件25的具体形式发生变化，止挡件的结构也会有相应地改动。
通过上述描述，本领域技术人员可以很容易地想到实现本发明技术效果的另一实施例：将止档件与触发件固定连接在一起。在该实施例中，触发件具体形式为一开关杆，包括第一触接部和第二触接部。触发件滑动连接在壳体上。止挡机构包括止挡件，止挡件包括触接部和止档部。其中，触接部与触发件固定连接，具体地，触接部与触发件的第一触接部固定连接。触接部时刻与第一触接部相连接。当触发件沿壳体滑动时，触发件会带动止挡件滑动。
当触发件启动电机23时，止挡机构位于第一位置，阻止调节机构6调节偏心传动机构3。当调节机构6调节偏心传动机构3时，止挡机构位于第二位置，阻止触发件25启动电机23。
当止挡机构位于第一位置时，止挡部与限位部抵触。具体地，当摆动动力工具1处于第一摆角位置工作时，止挡部与第一限位部6211抵触；当摆动动力工具1处于第二摆角位置工作时，止挡部与第二限位部6212抵触。当止挡机构位于第二位置时，止挡部与配合部6213滑移配合。
下面详细介绍本发明第一实施例的操作方法。如图16至图21所示，摆动动力工具1处于不同状态时，调节机构、止挡机构和触发件之间的结构状态。假定摆动动力工具1的初始位置为图16所示的第一位置。此时第一拨叉件4的第一限位部41的第一配接面411与第一驱动件331连接，同时背向第一配接面411的第四配接面422与第二拨叉件32的拨叉34连接，此时第二配接面412 及第三配接面413处于自由状态。当摆动动力工具1启动工作后通过电机23和偏心传动机构3的传动作用，使摆动动力工具1的输出轴26输出第一摆动角度的旋转往复摆动运动。如图16和图17所示，此时，触发件25处于开启位置，触发件25的第一接触部251与触接部72连接，止挡部73与第一限位部6211抵触。此时，用户若转动操作件611，由于触发件25与触接部72连接、使得止挡机构无法活动，所以第一限位部6211与止挡部73的连接会限制调节机构的活动，即凸轮结构615及容纳件621不能带动传递单元62转动，从而无法调节第一拨叉件4与偏心传动机构3的配合位置。即止挡机构与开关连接，止挡机构同时连接第一限位部，从而阻止调节机构的活动，避免开机时摆动角度被调节。
当用户根据实际工况需要输出第二摆动角度时，用户首先将触发件25调节至关闭位置，止挡件7在第三弹性件74的弹力作用下，往触发件25方向(即远离头壳21方向)转动，从而止挡部73不再和第一限位部6211抵触。用户再操作调节机构6，转动操作件611从而通过凸轮结构615及容纳件621使得传递单元62转动。这样使传递单元62的传递部622与第一拨叉件4的凸耳46之间的间隙消除直到传递部622与凸耳46连接并带动第一拨叉件4也产生转动。第一拨叉件4的转动使第一协同部41与第二协同部42分别的配接关系产生变化。具体地，第二配接面412与第二驱动件332连接，同时第三配接面421与拨叉34连接，此时第一配接面411和第四配接面422处于自由状态。这样当摆动动力工具1启动工作后，输出轴26就相应输出第二摆动角度的旋转往复摆动运动。如图18和图19所示，触发件25的第一接触部251与触接部72相连接，止挡部73的一端与第二限位部6212抵触。此时，触发件25处于开启位置，触发件25的第一接触部251与触接部72连接，止挡部73与第二限位部6212抵触。此时，用户若转动操作件611，由于触发件25与触接部72连接、使得止挡机构无法活动，所以第二限位部6212与止挡部73的连接会限制调节机构的活动，即凸轮结构615及容纳件621不能带动传递单元62转动，从而无法调节第一拨叉件4与偏心传动机构3的配合位置。即止挡机构与开关连接，止挡机构同时连接第二限位部，从而阻止调节机构的活动，避免开机时摆动角度被调节。
在第一摆动角度和第二摆动角度转换的过程中，即当调节机构活动时，若用户试图将触发件25由关闭位置转换为开启位置，即启动电机23，由于止挡机构和传递单元的相互作用，使得用户无法将触发件25转换至开启位置。如图20和图21所示，当触发件25由关闭位置向开启位置转换时，第一接触部251与触接部72连接，止挡部73的一端与配合部6213滑移配合。若用户转动操作件611，由于止挡部73与配合部6213滑移配合，止挡部73只能沿配合部6213的表面滑移，不能在沿电机制动器的致动方向产生所需开启电机的位移，因此，阻止开关由关闭位置活动至开启位置。从而确保了用户在调节摆角的过程中，摆动动力工具不会被开启。
通过上述描述可知，当摆动动力工具位于第一摆动角度或者第二摆动角度时，即止挡机构处于第一位置，触发件25启动电机23，止挡机构的触接部72与触发件25连接，止挡机构的止挡部73与第一限位部6211或者第二限位部6212抵触，从而阻止调节机构6调节传动机构3，避免开机时摆动角度被调节。当摆动动力工具在第一摆动角度和第二摆动角度转换的过程中，即止挡机构位于第二位置，止挡机构的触接部72与触发件25连接，止挡机构的止挡部73与配合部6213滑移配合，从而阻止触发件25启动电机23，确保了用户在调节摆角的过程中，摆动动力工具不会被开启。
具体实施方式二
如图22至图24所示为另一实施方式的摆动动力工具10。与实施方式一中的相似部分就不再描述，下面主要介绍其不同。
在本实施例中，止挡件7的具体结构发生变化。止挡件7包括枢转轴711、轴孔71、止挡部73和触接部72。其中枢转轴711与轴孔71相互配合。枢转轴711位于止挡部73与触接部72之间，止挡部73位于触接部72的相对端。枢转轴711的枢转轴线Y2垂直于输出轴轴线X1，且垂直于电机轴的轴线X2。第三弹性件74(图中未示出)设置在止挡件7与壳体2之间，提供促使触接部72与触发件25连接的弹性力。第三弹性件74的具体形式可以为一扭簧。在本实施例中，止挡件7的触接部72仍然和触发件25的第一触接部251连接，止挡件7的止挡部73和凸轮件612相配合。限位部和配合部相邻地设置在凸轮件612上。可见，限位部和配合部也可以设置在操作单元上。在本实施例中，限 位部包括第一限位部6121和第二限位部6122。具体地，在凸轮件612上分别设置与第一摆角相对应的第一限位部6121，与第二摆角相对应的第二限位部6122。在第一限位部6121与第二限位部6122之间设置有配合部6123。
第一限位部6121与第二限位部6122的具体形状可根据止挡部73的具体形状设定。在本实施例中，止挡部73的形状为凸起状，则第一限位部6121与第二限位部6122的形状设定为凹槽状。
如图22所示，摆动动力工具10处于第一摆角位置时，此时，触发件25处于开启位置，触发件25的第一接触部251与触接部72连接，止挡部73与第一限位部6121抵触。此时，用户若转动操作件611，由于触发件25与触接部72连接、使得止挡机构无法活动，所以第一限位部6121与止挡部73的抵触会限制调节机构的活动，即凸轮结构615及容纳件621不能带动传递单元62转动，从而无法调节第一拨叉件4与偏心传动机构3的配合位置。即止挡机构与触发件25连接，止挡机构同时抵触第一限位部6121，从而阻止调节机构6调节传动机构3，避免开机时摆动角度被调节。
当用户根据实际工况需要输出第二摆动角度时，用户首先将触发件25滑移至关闭位置，止挡件7在第三弹性件74的弹力作用下，往触发件25方向(即远离头壳21方向)转动，从而止挡部73不再和第一限位部6121抵触。用户再操作调节机构6，转动操作件611从而通过凸轮结构615及容纳件621使得传递单元62转动。这样使传递单元62的传递部622与第一拨叉件4的凸耳46之间的间隙消除直到传递部622与凸耳46连接并带动第一拨叉件4也产生转动。第一拨叉件4的转动使第一协同部41与第二协同部42分别的配接关系产生变化。具体地，第二配接面412与第二驱动件332连接，同时第三配接面421与拨叉34连接，此时第一配接面411和第四配接面422处于自由状态。这样当摆动动力工具10启动工作后，输出轴26就相应输出第二摆动角度的旋转往复摆动运动。如图23所示，此时，触发件25位于开启位置，触发件25的第一接触部251与触接部72相连接，止挡部73与第二限位部6122相连接、使得止挡机构无法活动，所以第二限位部6122与止挡部73的连接会限制调节机构的活动。即凸轮结构615及容纳件621不能带动传递单元62转动，从而无法调节第一拨叉件4与偏心传动机构3的配合位置。即止挡机构与开关连接，止挡机构 同时连接第二限位部，从而组织调节机构的活动，避免开机时摆动角度被调节。
在第一摆动角度和第二摆动角度转换的过程中，即当调节机构调节传动机构时，若用户试图将触发件25由关闭位置转换为开启位置，即启动电机23，由于止挡机构和传递单元的相互作用，使得用户无法将触发件25滑移至开启位置。如图24所示，当触发件25由关闭位置向开启位置转换过程中，第一接触部251与触接部72连接，止挡部73的一端与配合部6123滑移配合。若用户转动操作件611，由于止挡部73连接在配合部6123上，止挡部73沿配合部6123的表面滑移，阻止开关由关闭位置活动至开启位置。从而确保了用户在调节摆角的过程中，摆动动力工具不会被开启。
通过上述描述可知，当摆动动力工具位于第一摆动角度或者第二摆动角度时，即止挡机构位于第一位置，触发件25处于触发开关启动电机23的状态，止挡机构的触接部72与触发件25连接，止挡机构的止挡部73与第一限位部6121或者第二限位部6122抵触，从而阻止调节机构调节传动机构，避免开机时摆动角度被调节。当摆动动力工具在第一摆动角度和第二摆动角度转换的过程中，止挡机构位于第二位置，止挡机构的触接部72与触发件25连接，止挡机构的止挡部73沿配合部6123的表面滑移配合，从而阻止触发件25触发开关启动电机23，确保了用户在调节摆角的过程中，摆动动力工具10不会被开启。
具体实施方式三
如图25至图30所示为另一实施方式的摆动动力工具10’。本实例中的调节结构(未图示)与第一实施例中的调节结构在原理上相同，仅具体的结构有所区别，在此处就不做详细描述。而由于调节结构的改变，限位部和配合部设置的位置和具体的结构、以及止挡机构的具体结构根据需要做了适当的变化。
如图25所示，在本实施方式中，触发件25’与第一实施方式中的触发件25大致相同，包括第一接触部251’和第二接触部252’。其中第二接触部252’用于和开关(图中未画出)连接或脱开连接。通常向靠近工作头(图中未画出)的方向滑移触发件25’，第二接触部252’触动开关(图中未画出)，触发件25’移动至开启位置，电机23’启动。而通过向远离工作头的方向滑移触发件25’，第二接触部252’脱开与开关(图中未画出)配合，触发件25’移动至关闭位置，电机23’停止工作。
第一触接部251’与止挡机构配合，与第一实施方式中的触发件25所不同的是，在本实施例中，第一触接部251’设有斜槽2511’与止挡机构配合。该斜槽相对于电机轴的轴线X2倾斜设置。触发件25’的移动方向与电机轴的轴线X2平行设置，当触发件25’移动时，带动止挡机构运动。
止挡机构包括止挡件7’，与第一实施方式相同的是：止挡件7’在两个位置之间活动。止挡件7’位于第一位置，允许触发件25’相对于壳体活动，阻止调节机构调节传动机构，此时触发件25’可以启动电机，调节机构不可以调节传动机构，即不可以调节输出轴26’的摆动角度；止挡件7’位于第二位置，允许调节机构调节传动机构，阻止触发件25’相对于壳体活动，此时调节机构可以调节，使得输出轴26’具有不同的摆动角度。
与第一实施方式不同的是，止挡件7’的安装方式和具体的结构。在本实施例中，止挡件7’可活动收容在壳体2’内，具体的，止挡件7’设置在头壳21’和机壳22’之间，且止挡件7’在电机轴的轴线X2的方向的位移被限制。
为了操作方便，结构更加紧凑，可以将止挡件7’设置在风扇64’和输出轴26’之间。风扇64’由电机23’驱动，用于冷却电机23’。
止挡件7’大致呈弧形，包括触接部72’和止挡部73’。触接部72’和止挡部73’大致设置在弧形的两端。其中，触接部73’收容在斜槽2511’中，触发件25’移动时，由于止挡件7’在沿电机轴的轴线X2的方向的位移被限制，触发件25’则可以带动止挡件7’转动。该止挡件7’可围绕平行于电机轴的轴线X2的轴线转动；优选的，止挡件7’围绕电机轴的轴线X2转动。
止挡部73’可选择地与限位部或配合部配合，止挡件7’位于第一位置，止挡部73’与限位部抵触；止挡件7’位于第二位置时，止挡部73’与配合部滑移配合。
本实施例中的调节机构同第一实施例，包括活动连接壳体的操作单元(未图示)、活动连接操作单元以及偏心传动机构的传递单元(未图示)，传递单元用于把操作单元的运动转化为在第一拨叉件4在第一摆角位置和第二摆角位置之间的转动。而在本实施例中，限位部和配合部没有直接设置在传递单元62上，而是设置了由操作单元驱动可围绕止动轴线X5旋转运动的止动件63’。该止动件63’可设置在传递单元上，或设置在传递单元和操作单元之间，只要该 止动件63’可由操作单元驱动。当然，若将止动件63’相对固定，就可以阻止操作单元活动。
具体的，止动件63’围绕止动轴线X5可转动的设置在头壳21’上。限位部和配合部设置在该止动件63’上。
止动件63’在操作单元驱动下转动。优选的，止动件63’围绕的止动轴线X5垂直于输出轴的轴线X1。当然，同时止动轴线X5也可以垂直于电机轴的轴线X2。优选的，止动轴线X5垂直于输出轴的轴线X1和电机轴的轴线X2定义的平面。
在本实施例中，限位部包括可选择地与止挡部63’配合的第一限位部6121’和第二限位部6122’。具体地，在止动件63’上分别设置与第一摆角相对应的第一限位部6121’，与第二摆角相对应的第二限位部6122’。在第一限位部6121’与第二限位部612’2之间设置有配合部6123’。
第一限位部6121’与第二限位部6122’的具体形状可根据止挡部73’的具体形状设定。在本实施例中，止挡部73’的形状为柱状，则第一限位部6121’与第二限位部6122’的形状设定为凹槽状。且在止挡部73’与第一限位部6121’或第二限位部6122’配合时，凹槽的延伸方向与输出轴的轴线X1平行。
输出轴26’输出几种不同的摆角，限位部的个数可以与之相匹配。当然，如果是摆动角度可以是任意角度，那么限位部也可以仅设置一个。
如图26所示，摆动动力工具10’处于第一摆角位置时，此时，触发件25’处于开启位置，止挡件7’的触接部72’收容在第一接触部251’上的斜槽2511’内，且位于斜槽2511’相对远离工作头的后端。而在触发件25’在向靠近工作头(图中未画出)的方向滑移时，带动止挡件7’围绕电机轴的轴线X2转动，使得止挡部73’与第一限位部6121’抵触，止挡件7’处于第一位置。如此，在该状态下，止动件63’则无法转动，相对固定，从而阻止操作单元活动。因此，触发件25’处于开启位置，由于止挡部73’与第一限位部6121’抵触，用户则无法转动操作单元。所以第一限位部6121’与止挡部73’的抵触会限制调节机构的活动，即操作单元不能带动传递单元转动，从而阻止调节机构调节传动机构，避免开机时摆动角度被调节。
当摆动动力工具10’在采用第一摆角工作后，需要停机。此时，如图27所 示，只需将触发件25’朝远离工作头的方向滑移，就可以关闭电机。而在触发件25’在朝远离工作头的方向滑移时，带动止挡件7’围绕电机轴的轴线X2转动，使得止挡部73’脱离与第一限位部6121’抵触。此时，触发件25’处于关闭位置，止挡件7’的触接部72’收容在第一接触部251’上的斜槽2511’内，且位于斜槽2511’相对靠近工作头的前端。在该位置，触发件25’可以开启或关闭电机。当然，调节结构也可以调节，使得输出轴26’可以输出不同的摆动角度。
而当用户根据实际工况需要输出第二摆动角度时，用户首先将触发件25’滑移至关闭位置，如图27所示。在第一摆动角度和第二摆动角度转换的过程中，如图28所示，此时，操作单元驱动止动件63’围绕止动轴线X5(未图示)转动，使得配合部6213’与止挡件7’的止挡部73’滑动配合。从而阻止触发件25’在向靠近工作头的方向滑移，即用户无法将触发件25滑移至开启位置。配合部6213’与止挡件7’的止挡部73’滑动配合，在本实施例中，为止挡部73’的侧表面在配合部6213’的外表面滑动，而配合部6213’的外表面可以是以止动轴线X5上的点为圆心的圆弧面。
因此，调节机构在调节过程中，若用户试图将触发件25’由关闭位置转换为开启位置，即启动电机23’，由于止挡件7’处于第二位置，配合部6213’与止挡部73’滑动配合，在该状态，配合部6213’会阻挡触发件25’向工作头的方向移动，使用户无法将触发件25滑移至开启位置。确保了用户在调节摆角的过程中，摆动动力工具不会被开启。
而当用户根据需要调节到第二摆动角度后，如图29所示。此时触发件25’处于关闭位置。配合部6213’移动至与止挡部73’脱离的位置。在该位置，触发件25’可以开启或关闭电机。当然，调节结构也可以继续调节，使得输出轴26’可以输出不同的摆动角度。
而如果用户需要采用第二摆动工作时，只需将触发件25’移动至开启位置。如图30所示，触发件25’在向靠近工作头(图中未画出)的方向滑移，带动止挡件7’围绕电机轴的轴线X2转动，使得止挡部73’与第二限位部6122’抵触，止挡件7’处于第一位置。而止挡件7’的触接部72’收容在第一接触部251’上的斜槽2511’内，且位于斜槽2511’相对远离工作头的后端。在该状态下，止动件63’则无法转动，相对固定，从而阻止操作单元活动。因此，触发件25’处于开 启位置，由于止挡部73’与第二限位部6122’抵触，用户则无法转动操作单元。所以第二限位部6122’与止挡部73’的抵触会限制调节机构的活动，即操作单元不能带动传递单元转动，从而阻止调节机构调节传动机构，避免开机时摆动角度被调节。
通过上述描述可知，当摆动动力工具无论是位于第一摆动角度或者第二摆动角度时，即止挡件位于第一位置，触发件处于触发开关启动电机的状态，止挡件的触接部与触发件连接，止挡件的止挡部与第一限位部或者第二限位部抵触，从而阻止调节机构调节摆动角度，避免开机时摆动角度被调节。当摆动动力工具在第一摆动角度和第二摆动角度转换的过程中，止挡件位于第二位置，止挡件的触接部与触发件连接，止挡件的止挡部沿配合部的表面滑移配合，从而阻止触发件触发开关启动电机，确保了用户在调节摆角的过程中，摆动动力工具不会被开启。
本发明不局限于所举的具体实施例结构，基于本发明构思的结构均属于本发明保护范围。

Claims (21)

  1. 一种摆动动力工具，包括：
    壳体；
    电机，收容在所述壳体内，具有电机轴；
    开关，与所述电机相连，用于开启电机运转或者关闭电机运转；
    触发件，活动设置在所述壳体内，用于触发所述开关开启或者关闭所述电机；
    输出轴，由所述电机轴驱动做围绕自身轴线的摆动；
    传动机构，将所述电机轴的旋转运动转化为所述输出轴的摆动，所述传动机构包括安装在所述电机轴上的偏心装置及连接所述偏心装置和输出轴的拨叉组件；
    调节机构，设置在所述壳体上，用于调节所述传动机构，使得所述输出轴具有不同的摆动角度；
    其特征在于，所述摆动动力工具还包括相对壳体活动设置的止挡机构，所述止挡机构具有两个位置，所述开关启动所述电机时，所述止档机构位于第一位置，阻止所述调节机构调节所述传动机构；所述调节机构调节所述传动机构时，所述止挡机构位于第二位置，阻止所述开关启动所述电机。
  2. 根据权利要求1所述的摆动动力工具，其特征在于，所述调节机构包括限位部和配合部；当所述止挡机构位于第一位置时，所述止挡机构与触发件连接，同时与所述限位部抵触，用于阻止所述调节结构调节所述传动机构；当所述止挡机构位于第二位置时，所述止挡机构与所述配合部滑移配合，同时所述止挡机构与所述触发件连接，用于阻止所述开关启动所述电机。
  3. 根据权利要求2所述的摆动动力工具，其特征在于，所述触发件包括滑动连接在壳体上的开关杆，所述止挡机构包括止挡件，所述止挡件上设有与开关杆连接的触接部和止挡部；当所述止挡机构位于第一位置时，所述止挡部与所述限位部抵触；当所述止挡机构位于第二位置时，所述止挡部与所述配合部滑移配合。
  4. 根据权利要求2所述的摆动动力工具，其特征在于，所述止挡机构包括枢转连接在所述壳体上的止挡件，所述止挡件上设有触接部和止挡部；当所述止挡机构位于第一位置时，所述触接部与所述触发件连接，所述止挡部与所述 限位部抵触；当所述止挡机构位于第二位置时，所述止挡部与所述配合部滑移配合，所述触接部与所述触发件连接。
  5. 根据权利要求4所述的摆动动力工具，其特征在于，所述止挡机构还包括设置在止挡件和所述壳体之间的弹性件，所述弹性件提供促使所述触接部与所述触发件连接的弹性力。
  6. 根据权利要求5所述的摆动动力工具，其特征在于，所述调节机构包括活动连接壳体的操作单元和活动连接所述操作单元以及所述传动机构的传递单元，所述操作单元包括围绕调节轴线进行转动操作的操作件以及连接所述操作件的凸轮件，所述传递单元包括可容纳所述凸轮件的容纳件以及用于连接所述传动机构的传递件，当所述凸轮件在所述容纳件内转动时，驱动所述传递件带动所述传动机构运动。
  7. 根据权利要求6所述的摆动动力工具，其特征在于，所述限位部和所述配合部相邻地设置在所述传递件上。
  8. 根据权利要求7所述的摆动动力工具，其特征在于，所述止挡件的枢转轴线平行于输出轴的轴线且垂直于电机轴的轴线。
  9. 根据权利要求8所述的摆动动力工具，其特征在于，所述止挡件的枢转轴位于所述止挡部的相对端，所述触接部位于所述枢转轴与所述止挡部之间。
  10. 根据权利要求6所述的摆动动力工具，其特征在于，所述限位部和所述配合部相邻地设置在所述凸轮件上。
  11. 根据权利要求10所述的摆动动力工具，其特征在于，所述止挡件的枢转轴线垂直于输出轴的轴线和电机轴的轴线。
  12. 根据权利要求11所述的摆动动力工具，其特征在于，所述止挡件的枢转轴位于所述止挡部与所述触接部之间，所述止挡部位于所述触接部的相对端。
  13. 一种摆动动力工具，包括：
    壳体；
    电机，收容在所述壳体内，具有电机轴；
    触发件，活动设置在所述壳体内，用于触发所述电机开启或关闭；
    输出轴，由所述电机轴驱动做围绕自身轴线的摆动；
    传动机构，将所述电机轴的旋转运动转化为所述输出轴的摆动，所述传动 机构包括安装在所述电机轴上的偏心装置及连接所述偏心装置和输出轴的拨叉组件；
    调节机构，设置在所述壳体上，用于调节所述传动机构，使得所述输出轴具有不同的摆动角度；
    其特征在于，所述摆动动力工具还包括相对壳体活动设置的止挡件，所述止挡件在两个位置之间活动，在第一位置，允许所述触发件相对于所述壳体活动，阻止所述调节机构调节所述传动机构；在第二位置，允许所述调节机构调节所述传动机构，阻止所述触发件相对于所述壳体活动。
  14. 根据权利要求13所述的摆动动力工具，其特征在于，所述的摆动动力工具包括所述调节机构包括限位部和配合部；所述止挡件位于所述第一位置时，所述止挡件与限位部抵触；所述止挡件位于第二位置时，所述止挡件与配合部滑移配合。
  15. 根据权利要求14所述的摆动动力工具，其特征在于，所述触发件上设有斜槽，所述止挡件包括触接部和止挡部，其中所述触接部收容在所述斜槽中；所述止挡件位于所述第一位置时，所述止挡部与限位部抵触；所述止挡件位于第二位置时，所述止挡部与配合部滑移配合。
  16. 根据权利要求14所述的摆动动力工具，其特征在于，所述限位部包括与所述止挡部可选择配合的第一、第二限位部。
  17. 根据权利要求16所述的摆动动力工具，其特征在于，所述配合部设置在所述第一、第二限位部之间。
  18. 根据权利要求14所述的摆动动力工具，其特征在于，所述调节机构包括活动连接壳体的操作单元、由所述操作单元驱动旋转运动的止动件，所述限位部和所述配合部设置在所述止动件上。
  19. 根据权利要求14所述的摆动动力工具，其特征在于，所述调节机构包括活动连接壳体的操作单元和活动连接所述操作单元以及所述传动机构的传递单元，所述限位部和所述配合部设置在所述操作单元上；或所述限位部和所述配合部设置在所述传递单元上。
  20. 根据权利要求13所述的摆动动力工具，其特征在于，所述止挡件围绕所述电机轴的轴线转动设置。
  21. 一种摆动动力工具，包括：
    壳体；
    电机，收容在所述壳体内，具有电机轴；
    触发件，活动设置在所述壳体内，用于触发所述电机开启或关闭；
    输出轴，由所述电机轴驱动做围绕自身轴线的摆动；
    传动机构，将所述电机轴的旋转运动转化为所述输出轴的摆动；
    调节机构，设置在所述壳体上，用于调节所述传动机构，使得所述输出轴具有不同的摆动角度；
    其特征在于，所述摆动动力工具还包括设置在所述调节机构和所述触发件之间的止挡件，所述止挡件在两个位置之间活动，在第一位置，允许所述触发件相对于所述壳体活动，阻止所述调节机构调节所述传动机构；在第二位置，允许所述调节机构调节所述传动机构，阻止所述触发件相对于所述壳体活动。
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