WO2012097621A1 - 手持式电动工具 - Google Patents

手持式电动工具 Download PDF

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Publication number
WO2012097621A1
WO2012097621A1 PCT/CN2011/081458 CN2011081458W WO2012097621A1 WO 2012097621 A1 WO2012097621 A1 WO 2012097621A1 CN 2011081458 W CN2011081458 W CN 2011081458W WO 2012097621 A1 WO2012097621 A1 WO 2012097621A1
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WO
WIPO (PCT)
Prior art keywords
trigger
handle
switch
sub
power tool
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PCT/CN2011/081458
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English (en)
French (fr)
Inventor
倪祖根
斯诺堡⋅伯纳德
Original Assignee
苏州金莱克精密机械有限公司
富世华英国有限公司
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.)
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Priority claimed from CN 201110009718 external-priority patent/CN102577847B/zh
Priority claimed from CN2011200340965U external-priority patent/CN202014472U/zh
Application filed by 苏州金莱克精密机械有限公司, 富世华英国有限公司 filed Critical 苏州金莱克精密机械有限公司
Publication of WO2012097621A1 publication Critical patent/WO2012097621A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
    • A01G3/047—Apparatus for trimming hedges, e.g. hedge shears portable
    • A01G3/053—Apparatus for trimming hedges, e.g. hedge shears portable motor-driven
    • 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
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • the present invention relates to a machine tool, and more particularly to a hand-held power tool.
  • the existing hand-held power tool usually has a sub-handle that can rotate relative to the body, and the operating position can be adjusted according to the needs of the user, and the sub-handle is made into a ring shape.
  • the existing handle switch structure is generally complicated, such as the European Patent Application Publication Specification EP0214455 A hedge trimmer is disclosed.
  • the hedge trimmer is a hand-held power tool.
  • the tool is provided with two main and auxiliary handles, wherein the auxiliary handle is annular, and has three holding parts of left, middle and right, and A switching mechanism capable of triggering at the left, middle, and right gripping portions is mounted thereon.
  • the triggering action of the switch mechanism provided in the sub-handle is transmitted through the steel rope, and the steel rope needs multiple parts support in the auxiliary handle, and the assembly property is poor, resulting in a complicated overall structure of the switch mechanism and low work reliability. High manufacturing costs.
  • the main handle opens another switch through the main trigger, but since the hedge trimmer has two switches in the body, the circuit is connected, the cost is high, the wiring is complicated, and the assembly requirement for the sub-handle is higher.
  • the object of the present invention is to provide a novel hand-held power tool having a simple structure.
  • a first technical solution of the present invention is: a hand-held power tool comprising a body, a motor disposed in the body, a switch disposed in the body and controlling the operation of the motor, and a working component fixedly coupled to the body and driven by the motor, And a main handle and a sub-handle disposed on the main body, the sub-handle includes a sub-handle seat, a sub-handle cover, and a sub-trigger between the sub-handle cover and the auxiliary handle cover, wherein the auxiliary trigger is surrounded by four sides.
  • the secondary handle of the present invention further includes a triggering device disposed between the secondary trigger and the secondary handle cover and reciprocable.
  • the auxiliary handle cover is provided with a receiving groove for accommodating the triggering device and restricting the circumferential movement thereof, and a cover through hole communicating with the receiving groove, and the switch is located outside the through hole of the cover plate.
  • the auxiliary trigger includes a joint end having at least one inclined joint surface
  • the triggering device includes a mating end that cooperates with the joint end, wherein the mating end has at least one inclined shape and is combined with Face-to-face mating surface.
  • the joint end is a groove
  • the side wall of the groove is provided with at least three inclined joint faces
  • the mating end is a protrusion
  • the side wall of the block is provided with at least three inclined joints. surface.
  • the joint end is a bump
  • the side wall of the bump is provided with at least three inclined joint faces
  • the mating end is a groove
  • the groove side wall is provided with at least three inclined joints. surface.
  • the switch of the present invention includes a contact and a switch platen located above the contact and reciprocable, wherein the switch platen is located outside the through hole of the cover plate.
  • a power cord or a switch is not provided in the sub-handle.
  • the sub-handle or the sub-handle cover is provided with a plurality of triangular movable grooves, and the auxiliary trigger is provided with a protrusion extending into the movable slot and being limited.
  • a second technical solution of the present invention is: a hand-held power tool comprising a body, a motor disposed in the body, a switch disposed in the body and controlling the operation of the motor, and a switch linkage mechanism disposed in the body and controlling the switch action a working assembly fixedly coupled to the body and driven by the motor, and a main and auxiliary handle disposed on the main body, wherein the main handle has a main trigger, and the sub-handle includes an auxiliary trigger in a ring shape, and causes the switch linkage mechanism to act and A trigger driven by a secondary trigger.
  • the auxiliary handle is a closed ring, and the body includes a fixing protrusion and a positioning groove on the side, and the auxiliary handle has a corresponding structure to cooperate with the fixing protrusion and the positioning groove.
  • the body further includes a snap member located in the positioning groove, the snap member has a spherical bump, and the auxiliary handle has a groove for engaging with the bump.
  • the switch is mounted in the main trigger and connects the switch and the main trigger to the main handle via a cylindrical pin.
  • the switch linkage mechanism includes a push rod and a rocker, and one end of the push rod abuts against the trigger device, and the other end of the push rod, that is, the active end abuts against the rocker, and the rocker is wound The first pivot rotates.
  • the active end of the push rod has a beveled surface that cooperates with the rocker, and the triggering device has a wedge surface that cooperates with the auxiliary trigger, and the push rod moves in the same line as the triggering device.
  • the pusher sleeve is provided with a first return spring
  • the main trigger is provided with a second return spring and rotates about the second pivot.
  • the switch is adjacent to the main trigger and away from the secondary trigger, and the secondary trigger is an integral component that is surrounded by four sides.
  • a third technical solution of the present invention is: a hand-held power tool comprising a body, a motor disposed in the body, a switch disposed in the body and controlling the operation of the motor, and a working component fixedly coupled to the body and driven by the motor, And a main and auxiliary handle disposed on the body, wherein the main handle has a main trigger, and the auxiliary handle includes a secondary trigger that is annular and reciprocable in at least two directions, and a corresponding trigger driven by the secondary trigger and triggers the corresponding action of the switch
  • the triggering device wherein the direction of movement of the triggering device is perpendicular to the plane of motion of the secondary trigger, and the switch is located outside the secondary handle.
  • the hand-held power tool of the present invention can trigger the switch in any direction of the left, middle and right directions of the sub-handle, and the switch is placed outside the sub-handle, thereby eliminating the inconvenience of the sub-handle routing, compared to the background.
  • the structure involved in the technology of assembling and transmitting the trigger switch by the steel wire has the advantages of simple overall structure, few components, easy assembly, low cost, more sensitive triggering, and higher trigger reliability.
  • the sub-handle as a separate component can be packaged separately from the main body, which greatly improves the packing amount.
  • the hand-held power tool of the invention simultaneously activates a switch through the trigger mechanism in the sub-handle and the switch linkage mechanism in the body, which not only saves one switch, reduces wiring, improves the reliability of the switch trigger, and is simple in assembly and low in cost. , assembly positioning is more reliable.
  • Figure 1 is a perspective view of a first embodiment of the present invention, wherein the main handle portion body is removed;
  • FIG. 2 is an exploded perspective view of a sub-handle according to a first embodiment of the present invention
  • Figure 3 is a partial perspective view showing the sub-handle of the first embodiment of the present invention.
  • FIG. 4 is a perspective view of a secondary trigger and a trigger device according to a first embodiment of the present invention
  • Figure 5 is a perspective view showing the sub-handle cover and the triggering device of the first embodiment of the present invention
  • Figure 6 is a top plan view of the sub-handle and the auxiliary trigger of the first embodiment of the present invention.
  • Figure 7 is a schematic view showing the auxiliary trigger and the triggering device of the first embodiment of the present invention in an initial working state
  • Figure 8 is a schematic view showing the auxiliary trigger and the triggering device in the working state of the first embodiment of the present invention.
  • Figure 9 is a front sectional view showing the initial state of the operation of the second embodiment of the present invention.
  • Figure 10 is a front sectional view showing the working state of the second embodiment of the present invention.
  • Figure 11 is an exploded perspective view of a second embodiment of the present invention.
  • Figure 12 is a schematic view showing the separation of the handle and the body of the second embodiment of the present invention.
  • the present invention provides a first embodiment of a novel hand-held power tool.
  • the hand-held power tool is preferably a hedge trimmer, or a reciprocating saw or the like, which includes a body 10 and is disposed on the body.
  • Motor in 10 20 a switch 30 provided in the body 10 and controlling the operation of the motor 20, a working component fixedly connected to the body 10 and driven by the motor 20, and disposed on the body 10
  • Main and auxiliary handles 12, 14 on Main and auxiliary handles 12, 14 on.
  • the main body 10 has a cavity for housing the motor 20 and the switch 30, and the working component 40 is a laterally extending blade, and the main handle 12 is integrally formed on the body.
  • Switch 30 is a microswitch and is located on the sub-handle 14
  • the outer side includes a contact 32, and a switch platen 34 located above the contact 32 and reciprocable.
  • switch platen 34 When the switch platen 34 is forced to move downward, it elastically deforms and contacts the contact 32, and the switch 30 Closing, and when the force applied to the switch platen 34 is removed, the switch platen 34 returns to elastic deformation and disengages the contact 32, and the switch 30 is opened.
  • the sub-handle 14 includes a sub-handle 140, a sub-handle cover 144, and a sub-handle.
  • the auxiliary handle base 140 is provided with a plurality of fixing posts 1402 and a plurality of substantially triangular movable grooves.
  • the fixing post 1402 is used for fixing one end of the corresponding radial spring 62, the number of which is preferably three, and the number of the movable slots 1404 is preferably four, and the radial spring 62 The other end is abutted against the side wall of the secondary trigger 142.
  • the auxiliary handle cover 144 is provided with a receiving groove 1442 for accommodating the triggering device 50 and restricting the circumferential movement of the triggering device 50, and a receiving slot 1442 A cover through hole 1440, wherein the switch platen 34 is located outside the cover through hole 1440.
  • Secondary trigger 142 is a one-piece assembly, and may also be a plurality of parts, which comprises a sub-trigger body 1420 surrounded by four sides, a notch 1422 located on the lower side of the sub-trigger body 1420, and is disposed in the gap.
  • the joint end 1424 in the 1422 is located at a plurality of protrusions 1428 on both end faces of the auxiliary trigger body 1420.
  • the joint end 1424 has at least one inclined joint surface 1426
  • the joint end 1424 is preferably a groove and corresponds to the three operating positions of the operator by three inclined joint faces 1426.
  • the trigger device 50 includes a receiving slot in the receiving slot A rectangular trigger body 51 in 1442, a mating end 52 at one end of the trigger body 51 and mating with the mating end 1424 of the sub-trigger 142, and a cover-through hole at the other end
  • the triggering end 54 of the triggering plate is abutted by the triggering plate 34, and the receiving body 51 defines a receiving cavity 56 at an end of the triggering body 54.
  • the receiving cavity 56 is provided.
  • Mating end 52 There is at least one mating surface 520 that is inclined and mates with the bonding surface 1426.
  • the mating end 52 is preferably a bump that passes through three mating faces 520 formed on the outer sidewall thereof. The three mating faces 520 cooperate with the corresponding mating faces 1426 to respectively correspond to the three operating positions of the operator.
  • the secondary trigger 142 When no external force acts on the secondary trigger 142, the secondary trigger 142 is in three radial springs 62 The elastic force is maintained in the initial position, and the mating surface 520 and the joint surface 1426 are not in contact with each other; when the user holds the left inner side wall of the auxiliary trigger body 1420, the left radial spring 62 When the force is applied, the auxiliary trigger 142 is moved to the left, and the joint end 1424 is also moved to the left, as shown in Fig. 7-8, and the joint surface 1426 on the right side abuts the mating surface on the right side of the trigger end 54. 520.
  • the leftward movement is converted to cause the trigger body 51 to drive the trigger end 54 to move backward and compress the trigger spring 60, and the trigger end 54 extends out of the cover through hole 1440.
  • the switch platen 34 of the switch 30 is deformed downwardly and contacts the contact 32, whereby the switch 30 is closed and the motor operates normally.
  • the invention can trigger the switch in any direction of the left, middle and right directions of the sub-handle, and the switch is placed outside the auxiliary handle, thereby eliminating the inconvenience of the sub-handle routing, compared with the passage in the background art.
  • the structure of the steel wire assembly and the transmission of the trigger switch is simple, the components are small, the assembly is easy, the cost is low, the trigger is more sensitive, and the trigger reliability is higher.
  • the sub-handle as a separate component can be packaged separately from the main body, which greatly improves the packing amount.
  • FIG. 9-12 it is a second embodiment of the hand-held power tool of the present invention, wherein the auxiliary trigger 86 and the triggering device 81
  • the internal structure and working principle of the mutual cooperation are referred to the auxiliary trigger 142 and the triggering device 50 in the first embodiment.
  • the internal structure and working principle are not repeated for this purpose.
  • the main difference is that the two switches are combined into one switch and realized by the switch linkage mechanism.
  • the hand-held power tool includes a body 810 a motor 89 disposed in the body 810, a switch 818 disposed in the body 810 and controlling the operation of the motor 89, disposed in the body 810 and controlling the switch 818
  • a triggering device 81 disposed in the sub-handle 811 and causing the switch linkage to act and driven by the secondary trigger 886.
  • the body 810 has a receiving motor 89 and a switch 818.
  • the inner working chamber 88 is a laterally extending blade.
  • the main handle 819 is integrally formed on the body 810 and has a main trigger 814 that is rotatable about the second pivot 815.
  • the main trigger 814 is provided.
  • a resilient second return spring 816 and a cylindrical pin 817 that secures the main trigger 814 and switch 818 to the main handle 819.
  • Switch 818 is a microswitch and is located at the main trigger 814 The inside.
  • the auxiliary handle 11 is detachably pivotally connected to the body 810 and close to the working component 8, so that the operating position can be adjusted according to the needs of the user, and the auxiliary handle 811
  • the utility model has an inner grip portion and two left and right side grip portions, so that the user can hold the grip from three positions, which fully satisfies the requirements of the operation comfort.
  • the sub-handle 811 has a closed shape, and the sub-handle 811 passes through a fixing boss on the body 810.
  • the 8101 is connected to the side positioning slot 8102 to ensure reliable positioning of the front and rear of the sub-handle, and reliable positioning by the locking member 8103 on the main body 810 and the body 810, and finally through the sub-handle
  • the screw 83 in the 811 is fixed to the main body 810, and the screw 83 in the sub-handle 811 passes through the screw hole 8114 of the sub-handle 811 and is fixed to the positioning hole of the main body 810.
  • the sub-handle 811 and the body 810 are fixed, and the sub-handle 811 is not opened, and the screw 83 cannot be removed.
  • Fasteners on body 810 8103 With a spherical bump 8104, when the sub-handle 811 is assembled, when the sub-handle 811 is in place, the buckle 8103 bounces back to the initial position and the spherical bump 8104 enters the sub-handle Inside the groove 8116 on the 811, the user can feel that the sub-handle 811 has been assembled in position by the change of the force, and the sub-handle 811 is made through the spherical bump 8104. It is easy to disassemble without being stuck.
  • a switch trigger mechanism is provided in the body 810, which includes one end and a trigger device.
  • the push rod 84 that abuts against the contact, the rocker 85 that abuts against the working end 840 of the push rod 84, and the push rod 84 is disposed on the guide rail 87 and is sleeved with the first return spring 812
  • the working end 840 has at least a bevel that contacts the rocker 85, wherein the rocker 85 is rotatable about the first pivot 813 and has a trigger end that triggers the action of the switch 818.
  • the user can also trigger the action of the switch 818 through the main trigger 814 of the main handle 819.
  • the main trigger 814 rotates upward about the second pivot 815 under the force, and simultaneously drives the switch 818 to move to the side of the force, and the user pairs the auxiliary trigger at the position of the sub-handle 811.
  • the force is applied and the secondary trigger 86 transmits the force to the triggering device 81 through the wedge face.
  • the triggering device 81 transmits the force to the push rod 84, and the push rod 84 continues to move forward and passes through the working end 840.
  • the bevel transmits the force to the rocker 85. After the rocker 85 rotates counterclockwise around the first pivot 813, the trigger end 82 contacts the contact of the switch 818, and the switch 818 turn on.
  • the main trigger 814 When the user releases the main trigger 814 or the secondary trigger 86, the main trigger 814 returns to the initial position under the force of the second return spring 816, and the push rod 84 is at the first return spring 812. The force returns to the initial position, the switch 818 is disconnected from the trigger end 82 of the rocker 85, and the switch 818 is opened.
  • the second embodiment of the present invention simultaneously activates a switch through the trigger mechanism in the sub-handle and the switch linkage mechanism in the body, which not only saves one switch, reduces wiring, improves the reliability of the switch trigger, and is simple in assembly and low in cost.
  • the secondary handle is different from the usual one. U-shaped, but fixed to the casing in a closed structure, such a sub-handle is better in strength, and can be separately assembled separately, and finally installed by the user on the casing, reducing transportation costs and more reliable assembly positioning. .

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Description

手持式电动工具
技术领域
本发明涉及一种机械工具，特别涉及一种手持式电动工具。
背景技术
现有的手持式电动工具上除开主手柄之外，通常还设有一个可相对本体旋转的副手柄，其操作位置可根据用户需要进行不同角度的调节，并且该副手柄做成环状，具有左、中、右三个握持部位，以此来进一步满足操作舒适性的要求。
现有的手柄开关结构一般比较复杂，如欧洲专利申请公开说明书 EP0214455 揭示了一种绿篱机，该绿篱机是一种手持式电动工具，该工具上设有主、副二个手柄，其中副手柄呈环形，具有左、中、右三个握持部位，并且其上安装有能够在左、中、右三个握持部位进行触发的开关机构。然而这种副手柄内设有的开关机构的触发动作是通过钢绳进行传递的，钢绳在副手柄内需要多个零件支撑，装配性差，导致开关机构的整体结构复杂，工作可靠性低而且制造成本高。同时主手柄通过主扳机打开另一个开关，但由于该绿篱机机体内共有两个开关，通过电路相连，成本高，接线复杂，而且对副手柄的装配要求更高。
发明内容
本发明目的是提供一种结构简单的新型手持式电动工具。
本发明的第一技术方案是：一种手持式电动工具，其包括本体、设于本体内的电机、设于本体内并控制电机运转的开关、固定连接至本体并由电机驱动的工作组件、和设置在本体上的主、副手柄，所述副手柄包括副手柄座、副手柄盖板、位于副手柄座和副手柄盖板之间的副扳机，其中副扳机为四面环绕连接。
在第一技术方案的基础上，进一步包括如下附属技术方案：
本发明中所述副手柄进一步包括设置在副扳机和副手柄盖板之间并可往复运动的触发装置。
本发明中所述副手柄盖板设置有容纳触发装置并限制其周向运动的收容槽、和与收容槽相连通的一盖板通孔，且所述开关位于该盖板通孔的外侧。
本发明中所述副扳机包括一结合端，该结合端具有至少一呈倾斜状的结合面，而触发装置包括与结合端相配合的配合端，其中配合端具有至少一呈倾斜状并与结合面配合的配合面。
本发明中所述结合端为一凹槽，该凹槽侧壁设有至少三个倾斜状的结合面，而配合端为一凸块，该凸块侧壁设有至少三个倾斜状的配合面。
本发明中所述结合端为一凸块，该凸块侧壁设有至少三个倾斜状的结合面，而配合端为一凹槽，该凹槽侧壁设有至少三个倾斜状的配合面。
本发明中所述开关包括一触点、和位于触点上方并可往复运动的开关压板，其中该开关压板位于盖板通孔的外侧。
本发明中所述副手柄内未设置有电源线或开关。
本发明中所述副手柄座或副手柄盖板设置有若干个呈三角形的活动槽，而副扳机则设有伸入到活动槽并限位的凸起。
本发明的第二技术方案是：一种手持式电动工具，其包括本体、设于本体内的电机、设于本体内并控制电机运转的开关、设于本体内并控制开关动作的开关联动机构、固定连接至本体并由电机驱动的工作组件、以及设置在本体上的主、副手柄，其中主手柄具有主扳机，而副手柄包括呈环状的副扳机、和促使开关联动机构动作并由副扳机驱动的触发装置。
在第二技术方案的基础上，进一步包括如下附属技术方案：
所述副手柄为封闭环状，所述本体包括固定凸起和位于侧面的定位槽，而副手柄则有相应结构与所述固定凸起、定位槽配合。
所述本体进一步包括位于定位槽内的卡扣件，所述卡扣件具有一球形的凸点，而副手柄则有与凸点配合的凹槽。
所述开关安装在主扳机内，并通过圆柱销将开关和主扳机连接至主手柄上。
所述开关联动机构包括一推杆和一翘板，所述的推杆的一端与触发装置相抵靠接触、推杆另一端，即作用端抵靠接触所述翘板，且所述翘板绕着第一枢轴旋转。
所述推杆的作用端具有与翘板配合的一斜面，而触发装置具有与副扳机配合的一楔形面，且推杆与触发装置在同一直线上运动。
所述推杆套设有第一复位弹簧，而主扳机设置有第二复位弹簧并绕第二枢轴旋转。
所述开关与主扳机相邻并远离副扳机，且副扳机为四面环绕连接的一体式组件。
本发明的第三技术方案是：一种手持式电动工具，其包括本体、设于本体内的电机、设于本体内并控制电机运转的开关、固定连接至本体并由电机驱动的工作组件、以及设置在本体上的主、副手柄，其中主手柄具有主扳机，而副手柄包括呈环状且可在至少两个方向上往复运动的副扳机、和由副扳机驱动并触发开关相应动作的触发装置，其中触发装置的运动方向与副扳机所在的运动平面相互垂直，同时开关位于副手柄的外侧。
本发明优点是：
本发明的手持式电动工具不论在副手柄的左、中、右三个方向的哪个方向都能触发开关，且开关放置在副手柄之外，省去了副手柄走线的不便，相比背景技术中涉及的通过钢绳装配并传递触发开关开启的结构而言，整体结构简单，零部件少，易于装配，成本低，而且触发更加灵敏，触发可靠性也更高。同时副手柄作为一个独立的组件，可以与本体分开打包，大大的提高了装箱量。
另外本发明的手持式电动工具通过副手柄内的触发机构和本体内的开关联动机构同时启动一个开关，不仅节省了一个开关，减少了接线，提高了开关触发的可靠性而且装配简易，成本低，装配定位更可靠。
附图说明
下面结合附图及实施例对本发明作进一步描述：
图 1 为本发明的第一实施例的立体示意图，其中主手柄部分本体被移除；
图 2 为本发明的第一实施例的副手柄的分解示意图；
图 3 为本发明的第一实施例的副手柄的部分立体示意图；
图 4 为本发明的第一实施例的副扳机和触发装置的立体示意图；
图 5 为本发明的第一实施例的副手柄盖板和触发装置的立体示意图；
图 6 为本发明的第一实施例的副手柄座和副扳机的俯视示意图；
图 7 为本发明的第一实施例的副扳机和触发装置处于作业初始状态的示意图；
图 8 为本发明的第一实施例的副扳机和触发装置处于作业动作状态的示意图；
图 9 为本发明的第二实施例的作业初始状态正向剖面图；
图 10 是本发明的第二实施例的作业动作状态正向剖面图；
图 11 是本发明的第二实施例的立体分解图；
图 12 是本发明的第二实施例的手柄和本体分离的示意图。
其中： 10,810 、本体； 12,819 、主手柄； 14,811 、副手柄； 20,89 、电机； 30,818 、开关； 32 、触点； 34 、开关压板； 40,88 、工作组件； 50,81 、触发装置； 51 、触发本体； 52 、配合端； 54,82 、触发端； 56 、收容腔； 60 、触发弹簧； 62 、径向弹簧； 64,83 、螺钉； 84 、推杆； 85 、翘板； 87 、导轨； 100 、内腔； 140 、副手柄座； 142,886 、副扳机； 144 、副手柄盖板； 520 、配合面； 812 、第一复位弹簧； 813 、第一枢轴； 814 、主扳机； 815 、第二枢轴； 816 、第二复位弹簧； 817 、圆柱销； 840 、作用端； 1402 、固定柱； 1404 、活动槽； 1420 、副扳机本体； 1422 、缺口； 1424 、结合端； 1426 、结合面； 1428 、凸起； 1440 、盖板通孔； 1442 、收容槽； 8101 、固定凸起； 8102 、定位槽； 8103 、卡扣件； 8104 、凸点； 8105 、定位孔； 8110 、收容部； 8112 、定位块； 8114 、螺钉孔； 8116 、凹槽； 8140 、主握持部。
具体实施方式
实施例：如图 1-8 所示，本发明提供了一种新型手持式电动工具的第一实施例，手持式电动工具在本实施例优选为一种绿篱机，也可为往复锯等，其包括本体 10 、设于本体 10 内的电机 20 、设于本体内 10 并控制电机 20 运转的开关 30 、固定连接至本体 10 并由电机 20 驱动的工作组件 40 、和设置在本体 10 上的主、副手柄 12 、 14 。其中本体 10 具有一收容电机 20 和开关 30 的内腔，工作组件 40 是横向延伸的刀条，主手柄 12 一体成型于本体 10 上，而副手柄 14 可拆卸地枢接在本体 10 上并靠近工作组件 40 ，故其操作位置可根据用户需要进行不同角度的调节，同时该副手柄 14 呈环状，具有中握持部和左右两个侧握持部，使操作者能够从三个位置对其进行握持操作，充分满足了操作舒适性的要求。开关 30 为微动开关并位于副手柄 14 的外侧，其包括一触点 32 、和位于触点 32 上方并可往复运动的开关压板 34 ，当开关压板 34 受力下移时，弹性形变并接触触点 32 ，开关 30 闭合，而当开关压板 34 所受的力撤销之后，开关压板 34 恢复弹性形变并脱开触点 32 ，开关 30 断开。
进一步结合图 2-6 所示，副手柄 14 包括副手柄座 140 、副手柄盖板 144 、位于副手柄座 140 和副手柄盖板 144 之间的副扳机 142 、以及安设在副扳机 142 和副手柄盖板 144 之间并可往复运动的触发装置 50 ，其中副手柄座 140 和副手柄盖板 144 为前后两半壳体且可相互扣合并通过螺钉 64 固定而成。副手柄座 140 内侧设置有若干个固定柱 1402 、和若干个大致呈三角形的活动槽 1404 ，固定柱 1402 用于固定相应径向弹簧 62 的一端，其个数优选为三个，而活动槽 1404 的个数优选为 4 个，而径向弹簧 62 的另一端则抵靠在副扳机 142 的侧壁上。副手柄盖板 144 设置有收容触发装置 50 并限制触发装置 50 周向运动的收容槽 1442 、和与收容槽 1442 相连通的一盖板通孔 1440 ，其中开关压板 34 位于该盖板通孔 1440 的外侧。副扳机 142 优选为一件式组件，也可为多个零件扣合而成，其包括四面环绕连接的副扳机本体 1420 、位于副扳机本体 1420 下侧边的一缺口 1422 、设置在缺口 1422 内的结合端 1424 、位于副扳机本体 1420 两端面的若干个凸起 1428 。其中该结合端 1424 具有至少一呈倾斜状的结合面 1426 ，在本实施例中，结合端 1424 优选为一凹槽，并通过三个倾斜状的结合面 1426 来分别对应操作者的三个操作位置。而凸起 1428 在本实施例优选为一圆柱体，并可在活动槽 1404 三面活动限位，凸起的个数优选为 4 个以上，以确保副扳机 142 平稳运动。触发装置 50 包括收容在收容槽 1442 内的矩形触发本体 51 、位于触发本体 51 一端并与副扳机 142 的结合端 1424 相配合的配合端 52 、以及位于另一端且可伸出盖板通孔 1440 之外并与开关压板 34 抵靠触发开关动作的触发端 54 ，其中触发本体 51 在靠近触发端 54 的一端开设有一收容腔 56 ，该收容腔 56 用于收容触发弹簧 60 的一端，而触发弹簧 60 则套设在触发端 54 上，且另一端抵靠在收容槽 1442 的内壁上。配合端 52 具有至少一呈倾斜状并与结合面 1426 配合的配合面 520 ，在本实施例中，配合端 52 优选为凸块，其通过形成于其外侧壁上的三个配合面 520 ，该三个配合面 520 与对应的结合面 1426 配合运动，以分别对应操作者的三个操作位置。同时配合端 52 也可采用凹槽形式，其通过形成于其内侧壁上的三个配合面，而结合端 1424 也可以采用具有三个倾斜状结合面的凸块也能实现本发明目的。同时副手柄 14 内无任何电气部件，如电源线、开关等，由此减少了走线的不便。
当无外力作用于副扳机 142 时，该副扳机 142 在三个径向弹簧 62 的弹力作用下保持在初始位置，配合面 520 与结合面 1426 相互不接触；当用户手握住副扳机本体 1420 的左内侧壁，对左侧径向弹簧 62 施加作用力，副扳机 142 向左移动，结合端 1424 也向左移动，如图 7-8 所示，其位于右侧的结合面 1426 抵靠在触发端 54 的位于右侧的配合面 520 ，由于两者为斜面配合，向左的移动转化成促使触发本体 51 带动触发端 54 向后运动并压缩触发弹簧 60 ，而触发端 54 则伸出盖板通孔 1440 ，并抵靠在开关 30 的开关压板 34 上，而开关压板 34 受压向下形变并接触触点 32 ，由此开关 30 闭合，电机正常工作。当用户撤销副扳机 142 的作用力，左侧径向弹簧 62 恢复弹性形变，促使副扳机 142 向右移动，位于右侧的结合面 1426 脱开与位于右侧的配合面 520 接触，而由于触发弹簧 60 恢复形变，触发端 54 向前运动，同时脱离与开关压板 34 的接触，由此开关压板 34 脱开触点 32 ，开关 30 断开，电机停止工作。同理用户手握另外两个方向，其原理也相同。所以不论副扳机 142 向左、中、右三个方向的哪个方向运动时，都可以通过副扳机 142 的三个倾斜状的结合面 1426 来带动触发装置 50 的触发端 54 运动，从而触发开关 30 。
本发明不论在副手柄的左、中、右三个方向的哪个方向都能触发开关，且开关放置在副手柄之外，省去了副手柄走线的不便，相比背景技术中涉及的通过钢绳装配并传递触发开关开启的结构而言，整体结构简单，零部件少，易于装配，成本低，而且触发更加灵敏，触发可靠性也更高。同时副手柄作为一个独立的组件，可以与本体分开打包，大大的提高了装箱量。
同时，如图 9-12 所示，其为本发明手持式电动工具的第二实施例，其中副扳机 86 与触发装置 81 相互配合的内部结构及工作原理参照第一实施例中副扳机 142 与触发装置 50 的内部结构及工作原理，为此不予以重复赘述，其主要区别在于将两个开关合并成一个开关并通过开关联动机构来实现。如图 9 所示，手持式电动工具包括本体 810 、设于本体 810 内的电机 89 、设于本体 810 内并控制电机 89 运转的开关 818 、设于本体 810 内并控制开关 818 动作的开关联动机构、固定连接至本体 810 并由电机 89 驱动的工作组件 88 、设置在本体 810 上的主、副手柄（ 819 、 811 ）、以及设置在副手柄 811 内并促使开关联动机构动作并由副扳机 886 驱动的触发装置 81 。其中本体 810 具有一收容电机 89 和开关 818 的内腔，工作组件 88 是横向延伸的刀条，主手柄 819 一体成型于本体 810 上，并设有可绕着第二枢轴 815 旋转的主扳机 814 、提供主扳机 814 回弹力的第二复位弹簧 816 、以及将主扳机 814 和开关 818 固定至主手柄 819 上的圆柱销 817 。开关 818 为微动开关并位于主扳机 814 的内侧。而副手柄 11 可拆卸地枢接在本体 810 上并靠近工作组件 8 ，故其操作位置可根据用户需要进行不同角度的调节，同时该副手柄 811 呈环状，具有中握持部和左右两个侧握持部，使用户能够从三个位置对其进行握持操作，充分满足了操作舒适性的要求。
参照图 10 所示，副手柄 811 为一个封闭的形状，副手柄 811 通过本体 810 上的固定凸起 8101 和侧面的定位槽 8102 连接，保证副手柄前后左右可靠定位，并通过本体 810 上的卡扣件 8103 与本体 810 实现可靠定位，最终通过副手柄 811 内的螺钉 83 与本体 810 固定，副手柄 811 内的螺钉 83 穿过副手柄 811 的螺钉孔 8114 ，再固定到本体 810 的定位孔 8105 上，由此实现副手柄 811 和本体 810 的固定，并保证不打开副手柄 811 ，无法取出螺钉 83 。本体 810 上的卡扣件 8103 具有一球形的凸点 8104 ，用户在装配副手柄 811 时，副手柄 811 安装到位时，卡扣 8103 弹回初始位置，并使球形的凸点 8104 进入副手柄 811 上的凹槽 8116 内，使用户能通过力度的变化感觉副手柄 811 已经装配到位，同时通过球形的凸点 8104 ，使得副手柄 811 的拆卸方便，而不会被卡住。
参照图 10-12 所示，本体 810 内设有开关触发机构，其包括一端与触发装置 81 相抵靠接触的推杆 84 、与推杆 84 的作用端 840 抵靠接触的翘板 85 ，推杆 84 设置在导轨 87 上并套设连接有第一复位弹簧 812 进行往复运动，作用端 840 至少有与翘板 85 接触的斜面，其中翘板 85 可绕着第一枢轴 813 旋转，并有触发开关 818 动作的触发端 82 。工作时，用户也可以通过主手柄 819 的主扳机 814 来触发开关 818 的动作，当用户在主握持部 8140 上对主扳机 814 施加作用力时，主扳机 814 在力的作用下绕着第二枢轴 815 往上旋转，同时带动开关 818 向作用力的一侧发生移动，同时，用户在副手柄 811 位置对副扳机 86 施加作用力，副扳机 86 通过楔形面将作用力传递给触发装置 81 。触发装置 81 将作用力传递给推杆 84 ，推杆 84 继续向前运动，并通过作用端 840 的斜面将力传递给翘板 85 ，翘板 85 绕着第一枢轴 813 发生逆时针方向的旋转后，其触发端 82 与开关 818 的触点接触，将开关 818 打开。当用户放开主扳机 814 或副扳机 86 后，主扳机 814 在第二复位弹簧 816 的作用力下回到初始位置，推杆 84 在第一复位弹簧 812 的作用力下回到初始位置，开关 818 与翘板 85 的触发端 82 断开连接，开关 818 断开。
本发明的第二实施例通过副手柄内的触发机构和本体内的开关联动机构同时启动一个开关，不仅节省了一个开关，减少了接线，提高了开关触发的可靠性而且装配简易，成本低，另外副手柄不同于往常的 U 字型，而是以封闭的结构固定于机壳上，这样的副手柄强度更好，而且可以单独分开装配，最后由用户自行装在机壳上，减少了运输成本，而且装配定位更可靠。
当然上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明主要技术方案的精神实质所做的等效变换或修饰，都应涵盖在本发明的保护范围之内。

Claims (18)

1 ．一种手持式电动工具，其特征在于：其包括本体（ 10 ）、设于本体（ 10 ）内的电机（ 20 ）、设于本体内（ 10 ）并控制电机（ 20 ）运转的开关（ 30 ）、固定连接至本体（ 10 ）并由电机（ 20 ）驱动的工作组件（ 40 ）、和设置在本体（ 10 ）上的主、副手柄（ 12 、 14 ），其中所述副手柄（ 14 ）包括副手柄座（ 140 ）、副手柄盖板（ 144 ）、以及位于副手柄座（ 140 ）和副手柄盖板（ 144 ）之间的副扳机（ 142 ），其中副扳机（ 142 ）为四面环绕连接。
2 ．根据权利要求 1 所述的手持式电动工具，其特征在于：所述副手柄（ 14 ）进一步包括设置在副扳机（ 142 ）和副手柄盖板（ 144 ）之间并可往复运动的触发装置（ 50 ）。
3. 根据权利要求 2 所述的手持式电动工具，其特征在于：所述副手柄盖板（ 144 ）设置有容纳触发装置（ 50 ）并限制其周向运动的收容槽（ 1442 ）、和与收容槽（ 1442 ）相连通的一盖板通孔（ 1440 ），且所述开关（ 30 ）位于该盖板通孔（ 1440 ）的外侧。
4. 根据权利要求 3 所述的新型手持式电动工具，其特征在于：所述副扳机（ 142 ）包括一结合端（ 1424 ），该结合端（ 1424 ）具有至少一呈倾斜状的结合面（ 1426 ），而触发装置（ 50 ）包括与结合端（ 1424 ）相配合的配合端（ 52 ），其中配合端（ 52 ）具有至少一呈倾斜状并与结合面（ 1426 ）配合的配合面（ 520 ）。
5. 根据权利要求 4 所述的手持式电动工具，其特征在于：所述结合端（ 1424 ）为一凹槽，该凹槽侧壁设有至少三个倾斜状的结合面（ 1426 ），而配合端（ 52 ）为一凸块，该凸块侧壁设有至少三个倾斜状的配合面（ 520 ）。
6. 根据权利要求 4 所述的手持式电动工具，其特征在于：所述结合端（ 1424 ）为一凸块，该凸块侧壁设有至少三个倾斜状的结合面（ 1426 ），而配合端（ 52 ）为一凹槽，该凹槽侧壁设有至少三个倾斜状的配合面（ 520 ）。
7. 根据权利要求 5 所述的手持式电动工具，其特征在于：所述开关（ 30 ）包括一触点（ 32 ）、和位于触点（ 32 ）上方并可往复运动的开关压板（ 34 ），其中该开关压板（ 34 ）位于盖板通孔（ 1440 ）的外侧。
8. 根据权利要求 2 所述的手持式电动工具，其特征在于：所述副手柄（ 14 ）内未设置有电源线或开关。
9. 根据权利要求 2 所述的手持式电动工具，其特征在于：所述副手柄座（ 140 ）或副手柄盖板（ 144 ）设置有若干个呈三角形的活动槽（ 1404 ），而所述副扳机（ 142 ）则设有伸入到活动槽（ 1404 ）并限位的凸起（ 1428 ）。
10 ．一种手持式电动工具，其特征在于：其包括本体（ 810 ）、设于本体（ 810 ）内的电机（ 89 ）、设于本体（ 810 ）内并控制电机（ 89 ）运转的开关（ 818 ）、设于本体（ 810 ）内并控制开关（ 818 ）动作的开关联动机构、固定连接至本体（ 810 ）并由电机（ 89 ）驱动的工作组件（ 88 ）、以及设置在本体（ 810 ）上的主、副手柄（ 819 、 811 ），其中主手柄（ 819 ）具有主扳机（ 814 ），而副手柄（ 811 ）包括呈环状的副扳机（ 86 ）、和促使开关联动机构动作并由副扳机（ 86 ）驱动的触发装置（ 81 ）。
11 ．根据权利要求 10 所述的手持式电动工具，其特征在于：所述副手柄（ 811 ）为封闭环状，所述本体（ 810 ）包括固定凸起（ 8101 ）和位于侧面的定位槽（ 8102 ），所述副手柄（ 811 ）则有相应结构与固定凸起（ 8101 ）、定位槽（ 8102 ）配合。
12. 根据权利要求 11 所述的手持式电动工具，其特征在于：所述本体（ 810 ）进一步包括位于定位槽（ 8102 ）内的卡扣件（ 8103 ），所述卡扣件（ 8103 ）具有一球形的凸点（ 8104 ），而副手柄（ 811 ）则有与凸点（ 8104 ）配合的凹槽（ 8116 ）。
13. 根据权利要求 10 或 11 或 12 所述的手持式电动工具，其特征在于：所述开关（ 818 ）安装在主扳机（ 814 ）内，并通过圆柱销（ 817 ）将开关（ 818 ）和主扳机（ 814 ）连接至主手柄（ 819 ）上。
14. 根据权利要求 13 所述的手持式电动工具，其特征在于：所述开关联动机构包括一推杆（ 84 ）和一翘板（ 85 ），所述的推杆（ 84 ）的一端与触发装置（ 81 ）相抵靠接触，所述的推杆（ 84 ）的另一端，即作用端（ 840 ）抵靠接触所述翘板（ 85 ），且所述翘板（ 85 ）绕着第一枢轴（ 813 ）旋转。
15. 根据权利要求 14 所述的手持式电动工具，其特征在于：所述作用端（ 840 ）具有与翘板配合的一斜面，而触发装置（ 81 ）具有与副扳机配合的一楔形面，且推杆与触发装置在同一直线上运动。
16. 根据权利要求 15 所述的手持式电动工具，其特征在于：所述推杆（ 84 ）套设有第一复位弹簧（ 812 ），而主扳机（ 814 ）设置有第二复位弹簧（ 816 ）并绕第二枢轴（ 815 ）旋转。
17. 根据权利要求 10 或 11 或 12 所述的手持式电动工具，其特征在于：所述开关（ 818 ）与主扳机（ 814 ）相邻并远离副扳机（ 86 ），且副扳机（ 86 ）为四面环绕连接的一体式组件。
18．一种手持式电动工具，其特征在于：其包括本体（810）、设于本体（810）内的电机（89）、设于本体（810）内并控制电机（89）运转的开关（818）、固定连接至本体（810）并由电机（89）驱动的工作组件（88）、以及设置在本体（810）上的主、副手柄（819、811），其中主手柄（819）具有主扳机（814），而副手柄（811）包括呈环状且可在至少两个方向上可往复运动的副扳机（86）、和由副扳机（86）驱动并触发开关（818）相应动作的触发装置（81），其中触发装置（81）的运动方向与副扳机（86）所在的运动平面相互垂直，同时开关（818）位于副手柄（811）的外侧。
PCT/CN2011/081458 2011-01-18 2011-10-27 手持式电动工具 WO2012097621A1 (zh)

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CN2011200340965U CN202014472U (zh) 2011-01-31 2011-01-31 具开关联动的手持式电动工具
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CN202014472U (zh) * 2011-01-31 2011-10-26 苏州金莱克精密机械有限公司 具开关联动的手持式电动工具
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WO2022255920A1 (en) * 2021-06-01 2022-12-08 Husqvarna Ab Handheld power tool with a safety switch

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