WO2011015160A1 - 切割机 - Google Patents

切割机 Download PDF

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Publication number
WO2011015160A1
WO2011015160A1 PCT/CN2010/075813 CN2010075813W WO2011015160A1 WO 2011015160 A1 WO2011015160 A1 WO 2011015160A1 CN 2010075813 W CN2010075813 W CN 2010075813W WO 2011015160 A1 WO2011015160 A1 WO 2011015160A1
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WO
WIPO (PCT)
Prior art keywords
cutting machine
less
base
machine according
handle portion
Prior art date
Application number
PCT/CN2010/075813
Other languages
English (en)
French (fr)
Inventor
布朗·沃伦
格哈雷·格雷厄姆
索默·哈利
陈国军
龙军
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
Publication date
Priority claimed from CN200910163870XA external-priority patent/CN101987381B/zh
Priority claimed from CN201010225015XA external-priority patent/CN102310231A/zh
Priority claimed from CN2010102347189A external-priority patent/CN102328132A/zh
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
Priority to US13/389,423 priority Critical patent/US20120192693A1/en
Priority to EP10806064.1A priority patent/EP2463070A4/en
Publication of WO2011015160A1 publication Critical patent/WO2011015160A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/02—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of beds; of guiding arrangements for work-tables or saw carriers; of frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/08—Pad-saw machines, i.e. machines in which the blade is attached to a carrier at one end only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/687—By tool reciprocable along elongated edge

Definitions

  • the invention relates to a cutting machine having a reciprocating cutting mechanism.
  • the existing jigsaw can perform various curves and straight lines, and is therefore widely used for sheet metal processing of various materials.
  • the jig saw includes a motor, a housing that houses the motor, a motion conversion mechanism that is housed in the reduction case, is driven by the motor, and converts the rotational motion of the motor into a reciprocating motion of the reciprocating rod, and is connected to the reciprocating rod through the collet device.
  • the invention provides a cutting machine with high cutting precision and convenient operation.
  • a cutting machine comprising: a work table having an opening, the work table including an upper surface for supporting the workpiece; a support for supporting the work table; a cutting mechanism for the lower surface of the table and received in the holder, the cutting mechanism comprising a motor for outputting a rotary motion, driving a reciprocating rod reciprocating through the saw blade of the opening, converting the rotational driving of the motor into A reciprocating motion conversion mechanism for the reciprocating rod, and an operable blade clamping release mechanism for clamping and releasing the saw blade.
  • the workbench is provided with a detachably connected shroud assembly.
  • the shroud assembly includes a guide wheel that provides guidance for the saw blade.
  • the support is provided with a detachably connected handle.
  • the cutter has an overall weight of less than 15 kg.
  • the workbench is made of a metal material and has a weight of less than 2 kg.
  • the work table comprises an aluminum alloy frame and a stainless steel panel mounted on the frame.
  • the weight of the table is 1.5 kg.
  • the surface area of the upper surface is less than 0.18 square meters.
  • the support is made of a plastic material.
  • the support has a weight of less than 2 kg.
  • the cutting machine further includes a shroud assembly mounted to the upper surface, and a platen assembly disposed on the shroud assembly, and the shroud assembly and the platen assembly have an overall weight of less than 1 kilogram.
  • the shield assembly has a farthest end farthest from the table, and the distance from the most distal end to the surface of the support back to the table is less than or equal to 0.37 meters.
  • the present invention also provides a cutting machine comprising: a work table having an opening, the work table including an upper surface for supporting a workpiece; a base having a bottom surface of the base; and the work table and the base a supporting wall, the supporting wall defining an outer surface; a cutting mechanism fixed to the lower surface of the table and received in the supporting wall, the cutting mechanism comprising: a motor for outputting a rotary motion, driving through a reciprocating rod of the reciprocating saw blade of the opening, converting a rotary motion of the motor into a reciprocating motion conversion mechanism of the reciprocating rod; the center of gravity of the cutting machine is at least with an upper surface of the table, a bottom surface of the base, and an outer surface of the support wall The distance of one is less than or equal to 0.24 meters.
  • the distance between the center of gravity of the cutting machine and at least one of the upper surface of the table, the bottom surface of the base, and the outer surface of the support wall is less than or equal to 0.1 m.
  • the cutting machine is provided with a handle portion.
  • the distance between the point of the force point on the handle portion and the center of gravity and the upper surface of the table or the bottom surface of the base is less than or equal to 0.1 m.
  • the line of the force point on the handle portion and the center of gravity is parallel to the upper surface of the table or the bottom surface of the base.
  • the handle portion is disposed on the support arm, and the handle portion has a longitudinally extending grip portion, and the grip portion extends in at least the upper surface of the table, the bottom surface of the base, and the support wall. One of the surfaces is parallel.
  • the distance between the center of gravity of the cutting machine and the bottom surface of the base is less than or equal to 0.1 m; the handle portion has a longitudinally extending grip portion, and the extending direction of the grip portion is parallel to the bottom surface of the base.
  • the worktable is detachably provided with a shield assembly.
  • the distance between the center of gravity of the cutter and the upper surface of the table is less than or equal to 0.1 m; the handle portion has a longitudinally extending grip. In part, the extending direction of the grip portion is parallel to the upper surface of the table.
  • the handle portion has a longitudinal position.
  • the handle portion is provided on the support arm.
  • the distance from the center of gravity of the cutter to the adjacent support wall of the support wall of the handle portion is less than or equal to 0.1 m.
  • a long extending grip portion, the grip portion extending in a direction parallel to the adjacent support wall.
  • the invention fixes the jig saw on the lower surface of the worktable by moving the workpiece The cutting is performed to make the operator more labor-saving and the cutting precision is higher.
  • FIG. 1 is a perspective view of a cutting machine according to a first embodiment of the present invention
  • Figure 2 is a partial cross-sectional view of the cutting machine of Figure 1;
  • Figure 3 is an exploded view of the table of the cutting machine of Figure 1;
  • Figure 4 is a schematic view of the cutting machine of Figure 1 when it is being handled
  • Figure 5 is a schematic view showing the cutting machine according to the second embodiment of the present invention when it is carried;
  • Figure 6 is a perspective view of a cutting machine according to a third embodiment of the present invention.
  • a cutting machine 20 includes a table 22, a support 24 for supporting the table 22, a shroud 30 disposed on the table 22, and a shroud. 30 is coupled to an adjustable platen assembly 32 that applies a certain pressure to the workpiece, and a cutting mechanism 26 disposed on the lower surface 38 of the table 22.
  • a cutting mechanism 26 disposed on the lower surface 38 of the table 22.
  • the usual use of this type of cutting machine is 10,000.
  • the first figure is the front part of the cutting machine 20, and the right side is the rear part of the cutting machine 20.
  • the table 22 has an upper surface 36, a lower surface 38, and side walls 39 extending perpendicularly relative to the upper and lower surfaces 36, 38.
  • the opening 40 is formed in the table 22 at the front of the cutter 20 and extends from the upper surface 36 to the lower surface 38.
  • the saw blade 28 passes through the opening 40 from bottom to top.
  • the workpiece 34 can be placed on the upper surface 36 of the table 11 and moved along the upper surface 36 through the saw blade 28 to be cut by the saw blade 28.
  • the shape of the opening 40 is substantially square.
  • a square blade guard 42 can be embedded in the opening 40 for preventing dust from entering the inside of the cutter 20 to a certain extent, and when an abnormality such as breakage of the saw blade 28 occurs, the shield 42 can be detached, and the operator is opened 40. The saw blade 28 is removed. A slot is formed in the middle of the shield 42. The saw blade 28 is passed through the slot 43.
  • the shroud assembly 30 includes a bracket 52 detachably attached to the table 11, an extension arm 54 disposed perpendicularly to the bracket, and an extension cover 55, left and right shroud panels 56a, 56b and shroud body 53 attached thereto.
  • a shroud clamping mechanism 57 including a clamping knob 50 adjustably secures the end shroud 59 to the extension arm 54.
  • a guide pulley 61 is disposed below the shield body 53 to provide guidance for the reciprocating motion of the blade 28.
  • a dust suction pipe 63 is provided for externally attaching a vacuum cleaner to suck out dust generated by cutting.
  • the extended cover 55 is rotated by an angle with respect to the extension arm 54, thereby adjusting the height of the shield body 53 relative to the table 22, thereby enabling the workpiece to be cut. Due to the length limitation of the saw blade 28, and during the cutting process, the end of the saw blade 28 away from the cutting mechanism 26 must be received in the shield main body 53 and guided by the guide wheel 61. Otherwise, there is a safety hazard to the user. The safety poses a threat, and therefore, the extended cover 55 will rotate relative to the extension arm 54 over a range of angles, forming a farthest position from the extended cover 55 to the table 22, and there is a distance table 22 The farthest distance from the farthest.
  • the distance from the farthest end of the table 22 to the surface of the support 24 facing the table 22 is 0.37 meters, that is, during the cutting process.
  • the distance from the farthest end to the surface of the passive table 22 of the support 24 is less than 0.37 meters.
  • the platen assembly 32 is disposed between the shroud assembly 30 and the table 22, and the height of the platen 65 relative to the table 11 is adjusted by rotating the adjustment wrench 66.
  • the overall weight of the shroud assembly 30 and the platen assembly 32 is less than one kilogram.
  • the shroud assembly 30 is constructed of a lightweight material and the platen assembly 32 is constructed of a material that is resistant to wear and that is not easily deformable.
  • the platen assembly 32 is constructed of a ferrous material, and the shroud assembly 30 and the platen assembly 32 have an overall weight of 0.75 kg, so that the overall weight of the shroud assembly 30 and the platen assembly 32 is lighter and less expensive.
  • the table top of the table 22 is not easily damaged, and the platen assembly 32 is made of iron material, so that the platen assembly 32 has good wear resistance and the service life of the machine body. L.
  • the bracket 52, the extension arm 54 and the extension cover 55 are made of an aluminum alloy, and the other components (except the necessary screws) are made of plastic.
  • the table 11 is also provided with a longitudinal T-shaped groove 44 and a horizontal T-shaped groove 45.
  • the longitudinal T-shaped groove 44 extends from the front of the table 11 toward the rear of the table 11.
  • the transverse T-shaped groove 45 is located on the front side of the opening 40 and intersects the longitudinal T-shaped groove 44 to divide the upper surface 36 of the entire table into four sections.
  • the horizontal T-shaped groove 45 and the longitudinal T-shaped groove 44 respectively extend from one side wall of the table 22 to the other side wall which is disposed in parallel.
  • the longitudinal T-shaped groove 44 and the horizontal T-shaped groove 45 have the same cross-sectional shape, and the bottom of the vertical T-shaped groove 44 and the horizontal T-shaped groove 45 are also provided with a plurality of through holes spaced along the extending direction of the T-shaped groove for Connect a fixed guide (not shown).
  • the upper surface 36 has a surface area of less than 0.18 square meters and has a width W parallel to the direction in which the transverse T-shaped grooves 45 extend and a length L relative to the width W.
  • the surface area of the upper surface 36 is 0.172 square meters
  • the width W is 0.4 meters
  • the length L is 0.43 meters. This arrangement makes the table 22 not too bulky and at the same time meets the needs of the user.
  • the table 22 is made of a metal material and has an overall weight of less than 2 kg.
  • the table 22 includes a frame 23 and a panel 25a, a panel 25b, a panel 25c and a panel 25d mounted on the frame 23, and the frame 23 is made of aluminum.
  • the panel 25a, the panel 25b, the panel 25c, and the panel 25d are each made of a stainless steel material, and the table 22 has an overall weight of 1.5 kg.
  • Such an arrangement makes the table 22 lighter in weight, and the upper surface 36 is mainly composed of the panel 25a, the panel 25b, the panel 25c, and the panel 25d, so that it has excellent wear resistance.
  • the frame 23 and the aforementioned panel 25a, panel 25b, panel 25c and panel 25d may also be made of other materials, for example, the frame 23 is made of cast iron, and the plurality of panels may be made of bronze or the like as long as the functions and effects thereof are achieved.
  • the invention is identical or similar and should be covered by the scope of the invention.
  • the cutting mechanism 26 is fixed to the lower surface 38 of the table 11 and housed in the holder 24, and includes a motor 72 that outputs a rotational motion, and a reciprocating rod 74 that reciprocates through the saw blade 28 of the opening 40 to drive the rotation of the motor 72.
  • a motion conversion mechanism 76 that converts into a reciprocating motion of the reciprocating rod 74, and an operable blade clamping release mechanism 78 that operatively clamps and releases the saw blade 28.
  • the blade clamp release mechanism 78 includes an operating member 80 located on the table 22 or the support 24. , it , L ⁇ ⁇ , ⁇ ⁇ , , . ⁇ , L , , , ⁇
  • the overall weight of the cutting mechanism 26 is less than 3 kg. In the present embodiment, the weight of the cutting mechanism 26 is 2.5 kg.
  • the holder 24 includes a base 60 and a support wall 62 having a plurality of support legs 58.
  • the table 22 and the base 60 are substantially square, and four substantially frustoconical support legs 58 are respectively disposed at the four corners of the base 60, and the support walls 62 are disposed adjacent to each other. Between the two support legs 58, the support legs 58 protrude from the face on which the support wall 62 is located.
  • a drawer 64 is provided at the front of the holder 24 for collecting dust.
  • the two front support legs of the base 60 are respectively provided with a main switch 6 8 of the cutting machine and a speed switch 70.
  • the support 24 has a support wall, and those skilled in the art will appreciate that the table 2 2 and the cutting mechanism 26 can be supported by only a plurality of support legs. Therefore, the holder 24 in the present invention may also be a holder composed of support legs.
  • the holder 24 is made of lightweight material and weighs less than 2 kg.
  • the holder 24 is made of a plastic material and has a weight of 1.8 kg. This arrangement allows the holder 24 to have a good stress strength and is light in weight.
  • the cutter 20 has a height H, i.e., the distance of the support 24 from the surface of the table 22 to the upper surface 36, the height H being less than 0.3 meters, preferably 0.24 meters, and the cutter 20 is most often installed when the shield assembly 30 is not installed. It is capable of occupying a space of 0.05 16 cubic meters, while in the preferred embodiment it occupies a space of 0.04128 cubic meters. Thus, the cutter 20 takes up less space and is more compact in comparison with conventional bench-top tools.
  • the invention solves the technical problem that the traditional desktop tool is large in size, heavy in weight and inconvenient to carry.
  • the overall weight of the cutting machine 20 is less than 15 kg, so that the whole cutting machine 20 has good portability.
  • the overall weight of the cutter 20 is 6.45 kg, and with the conventional cable, the weight of the entire body is less than 9 kg. With this arrangement, the cutter 20 is small in size and weight, and is convenient for the user to carry, which is convenient for the user.
  • the cutter 20 has a center of gravity 0.
  • the present invention proposes that the distance from the center of gravity 0 of the cutter 20 to the human body is controlled within a certain range during transportation. Due to the high quality of the cutting machine, the cutting machine 20 always has an outer surface close to a certain part of the human body, such as the waist, the legs, etc., so that the center of gravity of the cutting machine 20 is controlled to the outer surface of the human body when the cutting machine is moved.
  • the distance controls the distance from the center of gravity 0 of the cutter 20 to the human body.
  • Center of gravity 0 to the distance of the human body refers to the distance from the center of gravity of the cutting machine to the part of the human body close to the cutting machine.
  • the outer surface of the cutter includes an upper surface 36 of the table, a bottom surface 69 of the base, and an outer surface of the support wall.
  • the outer surface of the support wall may be the outer surface of the support wall 62 shown in FIG. 1; or it may be a defined virtual outer surface, such as when the support wall 62 cannot be approached to a certain part of the human body when transported, then the corresponding support wall is defined. corresponding . . , , .
  • the surface of the outer edge of the i3 ⁇ 4 36 and the base wind surface 69 of the work is a wall eve, as shown in Figure 1, when the user is carrying the cutter At the front of the cutter (left side of Figure 1), the surface defined by the front outer surface 36 and the front outer edge of the base bottom surface 69 is the outer surface of the support wall of the cutter.
  • the distance from the center of gravity 0 of the cutter 20 to the upper surface 36 of the cutter table, the bottom surface 69 of the base, and the outer surface of the support wall is set to be less than or equal to 0.24 meters. Preferably, the distance is less than or equal to 0. . 1 meter.
  • the distance from the center of gravity 0 of the cutting machine 20 to one of the upper surface 36 of the table, the bottom surface 69 of the base, and the outer surface of the support wall is less than or equal to 0.1 m.
  • the center of gravity of the cutter 20 is 0 to the portion of the human body close to the cutting machine.
  • the distance is also less than or equal to 0.1 m, which will make the user closer to the center of gravity of the cutting machine, and the handling is also less laborious.
  • a handle portion is provided on the cutting machine 20.
  • the handle portion of the present embodiment is in the form of a handle 3 1 disposed on the holder 24, preferably the handle 3 1 is provided.
  • On the support wall 62, and on the handle 3 1 is provided a guide rail 46, on which the chute 48 is provided, and the handle 31 is slid in the chute 48 on the support wall 62 by means of the guide rail 46 for mounting or unloading
  • the handle 3 1 it is conceivable to those skilled in the art that the handle 3 1 of the present invention can also be screwed to the support.
  • the implementation of the hand-held portion is not limited thereto.
  • an opening through the upper surface 36 and the lower surface 38 may be provided near the outer edge of the table 22, through which the user can lift the cutter.
  • the straight line passing through the center of gravity 0 perpendicular to the ground necessarily passes through a certain point of the handle, which is the point at which the force on the handle 31 is most concentrated, which is called this embodiment.
  • the force point A in the embodiment, the distance between the point AO of the point A and the center of gravity 0 and the upper surface of the table 36 or the bottom surface 69 of the base is less than or equal to 0.1 m, preferably, each line AO
  • the point is equal to the distance between the upper surface 36 of the table or the bottom surface 69 of the base, that is, the line AO is parallel to the upper surface 36 of the table or the bottom surface 69 of the base.
  • the upper surface 36 or the bottom surface 69 of the base is opposite.
  • the horizontal plane is vertical without tilting, providing good human accessibility.
  • the center of gravity 0 of the cutter 20 is disposed near the bottom surface 69 of the base; and the shield assembly 30 on the table 22 of the present embodiment is held on the table 22, and the shield assembly 30 needs to occupy a certain amount.
  • the outer surface of the support wall of the cutter 20 constituted by the support leg 58 and the support wall 62 is irregular, the center of gravity 0 to the outer surface of the base 60 of the cutter 20, that is, the base, is used in this embodiment. 1 ⁇
  • the distance H is set to be less than or equal to 0.24 meters, preferably, the distance is approximately equal to 0.1 meters.
  • the handle 31 in this embodiment has a longitudinally extending grip portion that extends in a direction parallel not only to the plane in which the support wall 62 to which it is attached but also to the base bottom surface 69.
  • the body of the handle 31 is made of a hard material, and a reinforcing rib may be provided inside the handle 31; in order to make the user more comfortable to carry the cutter 20 through the handle 31, elasticity may be provided on the grip portion of the handle 31. Wraps such as rubber mats, soft PVC mats, etc.
  • the support wall 62 encloses an area smaller than the area of the table 22 and the base 60, the handle 31 is disposed on the support wall 62, and the outer edge of the handle 31 is located on the upper surface 36 of the table or the base Inside the outer edge of the bottom surface 69.
  • FIG. 5 a schematic view of a cutting machine according to a second embodiment of the present invention is carried.
  • the difference between this embodiment and the first embodiment is that: during handling, the shield assembly 30 is first detached from the table 22, and then the cutter 20 is inverted to bring the handle 31 upward, since the upper surface 36 of the table 22 is flat, The user may stand close to the upper surface 36 of the table 22, and set the distance HI between the center of gravity 0 and the upper surface 36 of the table to be less than or equal to 0.24 meters for better human accessibility.
  • FIG. 6 is a perspective view of a cutting machine according to a third embodiment of the present invention.
  • the difference between this embodiment and the first embodiment is that without the support leg 58, the main switch and the adjustment switch originally disposed on the support leg 58 can be disposed at appropriate positions (not shown), working.
  • the handle 31 is disposed on one of the support walls 62. Since the width of the adjacent support wall 62' is sufficiently close to the human body and is not blocked by the outer edge of the table 22 or the base 60, the center of gravity 0 can be adjacent to the adjacent support wall.
  • the distance of 62' is set to be less than or equal to 0.24 meters.
  • the handle 31 in this embodiment has a longitudinally extending grip portion that extends in a direction not only parallel to the support wall 62 but also parallel to the support wall 62', and because the center of gravity 0 is closer to the support wall 62' than The support wall 62' is opposite to the support wall 62", so that the handle 31 can be disposed close to the support wall 62, so as to guide the user to the support wall 62 and stand, so that when the user lifts the handle 31, the center of gravity 0 is removed from the human body.
  • the width of the adjacent supporting wall 62' is small enough to be directly close to the human body, the surface formed by the outer edge of the upper surface 36 and the bottom surface 69 of the base surface corresponding to the supporting wall 62' is defined as the cutting machine 20.
  • the distance between the center of gravity 0 and the outer surface of the defined support wall can be set to be less than or equal to 0.24 meters.
  • the center of gravity 0 can be placed at a central position between the upper surface 36 and the base bottom surface 69.
  • the distance from the center of gravity 0 to the upper surface 36 and the bottom surface 69 of the base is less than 0.24 meters.
  • the handle 31 is disposed parallel to the upper surface 36 and the base bottom surface 69 at an intermediate position of the support wall 62. When the user lifts the cutter through the handle 31, both the upper surface 36 of the table 22 and the bottom surface 69 of the base are close to the human body. , ⁇ , one,,

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  • Mechanical Engineering (AREA)
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Description

切割机 技术领域
本发明涉及一种具有往复切割机构的切割机。
背景技术
现有的曲线锯， 可以执行各种曲线和直线的切割， 因此被广泛地应用于各 种材质的板材加工。 通常， 曲线锯包括马达， 收容马达的壳体， 收容于减速箱 壳体中、 由马达驱动并将马达的旋转运动转换为往复杆的往复运动的运动转换 机构， 与往复杆通过夹头装置连接的锯条， 以及支撑曲线锯的机身于工件表面 的底板。
此类曲线锯在切割工件时， 往往将工件夹紧， 移动曲线锯进行切割， 但是 由于操作者施力不便以及曲线锯在切割时的振动， 导致切割精度较低； 在遇到 需要移动工件进行切割的情况时， 也十分不便。
发明内容
本发明提供一种切割精度较高， 操作方便的切割机。
为实现上述目的， 本发明的技术方案是： 一种切割机， 包括： 具有开口的 工作台， 所述工作台包括用于支撑工件的上表面； 支撑所述工作台的支座； 固 定于所述工作台的下表面并收容于所述支座内的切割机构， 所述切割机构包括 输出旋转运动的马达， 带动穿过所述开口的锯条往复运动的往复杆， 将马达的 旋转驱动转换为往复杆的往复运动的运动转换机构， 以及可操作的将锯条夹紧 和释放的锯条夹紧释放机构。
优选的， 所述工作台上设置有可拆卸的连接的护罩组件。
优选的， 所述护罩组件包括为所述锯条提供导向的导轮。
优选的， 所述支座上设置有可拆卸的连接的把手。
优选的， 所述切割机的整体重量小于 1 5千克。
优选的， 所述工作台采用金属材料制成， 其重量小于 2千克。
优选的， 所述工作台包括铝合金框架和安装于所述框架上的不锈钢面板。 优选的， 所述工作台的重量为 1 . 5千克。
优选的， 所述上表面的表面积小于 0. 1 8平方米。
优选的，所述支座背对所述工作台的表面至所述上表面的距离小于 0. 3米。 优选的， 所述支座采用塑料材料制成。 优选的， 所述支座的重量小于 2千克。
优选的， 所述切割机还包括安装于所述上表面的护罩组件， 以及设置于所 述护罩组件的压板组件， 且所述护罩组件和所述压板组件的整体重量小于 1千 克。
优选的， 所述护罩组件具有一个距离所述工作台距离最远的最远端， 所述 最远端至所述支座背对所述工作台的表面的距离小于等于 0. 37米。
本发明还提供一种切割机， 包括： 具有开口的工作台， 所述工作台包括用 于支撑工件的上表面； 具有基座底面的基座； 设置于所述工作台与所述基座之 间的支撑壁， 所述支撑壁定义有外表面； 固定于所述工作台的下表面并收容于 所述支撑壁内的切割机构， 所述切割机构包括： 输出旋转运动的马达， 带动穿 过所述开口的锯条往复运动的往复杆， 将马达的旋转运动转换为往复杆的往复 运动的运动转换机构； 所述切割机的重心至少与工作台上表面、 基座底面、 支 撑壁外表面之一的距离小于等于 0.24米。
优选的， 所述切割机的重心至少与工作台上表面、 基座底面、 支撑壁外表 面之一的距离小于等于 0. 1米。
优选的， 所述切割机设有提手部。
优选的， 通过提手部提起切割机时， 提手部上的着力点与重心的连线上任 一点与工作台上表面或基座底面的距离小于等于 0. 1米。
优选的， 通过提手部提起切割机时， 提手部上的着力点与重心的连线与工 作台上表面或基座底面平行。
优选的， 所述提手部设置在支撑臂上， 所述提手部具有纵长延伸的握持部 分， 所述握持部分的延伸方向至少与工作台上表面、 基座底面、 支撑壁外表面 之一平行。
优选的， 所述切割机的重心与基座底面的距离小于等于 0. 1 米； 所述提手 部具有纵长延伸的握持部分， 所述握持部分的延伸方向与基座底面平行。
优选的， 所述的工作台上可拆卸的设置有护罩组件。
优选的， 当所述的护罩组件从工作台上拆卸下来时， 所述切割机的重心与 工作台上表面的距离小于等于 0. 1 米； 所述提手部具有纵长延伸的握持部分， 所述握持部分的延伸方向与工作台上表面平行。
优选的， 所述提手部设置在支撑臂上， 所述切割机的重心到与设置提手部 的支撑壁的相邻支撑壁的距离小于等于 0. 1米； 所述提手部具有纵长延伸的握 持部分， 所述握持部分的延伸方向与所述的相邻支撑壁平行。
与现有技术相比， 本发明将曲线锯固定于工作台的下表面， 通过移动工件 进行切割， 使操作者操作时更加省力， 且切割精度较高。
附图说明
下面结合附图和实施方式对本发明作进一步说明。
图 1是本发明第一实施方式提供的切割机的立体示意图；
图 2是图 1 中切割机的局部剖视示意图；
图 3是图 1 中所述切割机的工作台的爆炸图；
图 4是图 1 中的切割机被搬运时的示意图；
图 5是本发明第二实施例提供的切割机被搬运时的示意图；
图 6是本发明第三实施例提供的切割机的立体示意图。
其中，
20 切割机 40开口 61导轮
22 工作台 42护板 62支撑壁
23 框架 43狭槽 62'支撑臂
24 支座 44纵 T形槽 62"支撑臂
25a 面板 45横 T形槽 63吸尘管
25b 面板 46导轨 64抽屉
25c 面板 48滑槽 65压板
25d 面板 50夹紧旋钮 66调节扳手
26切割机构 52支架 68主开关
28锯条 53护罩主体 69基座底面
30护罩组件 54延伸臂 70调速开关
31把手 55延展罩体 72马达
32压板组件 56a, 56b左右护罩板 74往复杆
34工件 57护罩夹紧机构 76运动转换机构
36上表面 58支撑脚 78锯条夹紧释放机构
38下表面 59端部罩体 80操作元件
39侧壁 60基座
具体实施方式
参见附图 1-2, 为本发明第一实施方式提供的一种切割机 20, 包括工作台 22, 支撑工作台 22的支座 24, 设于工作台 22上的护罩 30, 与护罩 30相连可 调节的对工件施加一定压力的压板组件 32, 以及设于工作台 22下表面 38的切 割机构 26。 , , . , · , L , LfB. ^ ;J. ^ , L. . , ^
很据稞 f者对此类切割机的惯常使用万式， 疋义图 1 甲^ 1则为切割机 20 的前部， 右侧为切割机 20的后部。 工作台 22具有上表面 36、 下表面 38 以及 相对于上、 下表面 36, 38垂直延伸的侧壁 39。 开口 40开设于工作台 22上， 位于切割机 20的前部， 自上表面 36贯穿至下表面 38。 锯条 28 自下而上穿过 开口 40。 工件 34可以放置在工作台 11的上表面 36上， 沿着上表面 36移动通 过锯条 28, 从而被锯条 28切割。 开口 40的形状基本上为方形。 一个方形的锯 条护板 42可嵌入开口 40,用于一定程度的防止灰尘进入切割机 20 内部，并且， 当出现锯条 28 断裂等异常情况时， 护板 42 可被拆卸下来， 操作者由开口 40 中取出锯条 28。 护板 42的中间开设有狭槽 43, 锯条 28可从狭槽 43 中通过。
护罩组件 30 包括可拆卸的连接在工作台 11上的支架 52, 与支架垂直设置 的延伸臂 54 以及与其相连的延展罩体 55、左右护罩板 56a, 56b和护罩主体 53。 包括夹紧旋钮 50的护罩夹紧机构 57将端部罩体 59可调节的紧固在延伸臂 54 上。 护罩主体 53下方设置导轮 61, 为锯条 28的往复运动提供导向。 护罩主体 53的上方设有吸尘管 63, 用于外接吸尘器， 将切割产生的灰尘吸出。
随着工件 34的厚度不同， 延展罩体 55会相对延伸臂 54转动一定角度， 从 而实现调节护罩主体 53相对于工作台 22的高度， 进而能够切割工件。 由于锯 条 28的长度限制， 以及在切割过程中， 锯条 28远离切割机构 26的一端必须收 容于护罩主体 53 内， 并由导轮 61提供导向， 否则， 其会存在安全隐患， 给使 用者的安全构成威胁， 因此， 延展罩体 55会相对于延伸臂 54在一定角度范围 内转动，会形成一个延展罩体 55至工作台 22的距离最远的最远位置，并且存在 一个距离工作台 22距离最远的最远端。 在本实施方式中， 延展罩体 55摆动至 所述最远位置时，其距离工作台 22的最远端至支座 24背对工作台 22的表面的 距离为 0.37米， 即在切割过程中， 延展罩体 55相对于延伸臂 54转动到其他角 度时， 其最远端至支座 24被动工作台 22的表面的距离均小于 0.37米。 压板组 件 32设于护罩组件 30与工作台 22之间， 通过转动调节扳手 66, 实现压板 65 相对于工作台 11 高度的调节。
护罩组件 30与压板组件 32的整体重量小于 1千克， 优选的， 护罩组件 30 采用轻质材料制成， 而压板组件 32采用耐磨性好， 且不易形变的材料制成。 在 本实施方式中， 压板组件 32采用铁材料制成， 护罩组件 30和压板组件 32整体 重量为 0.75千克， 如此设置使护罩组件 30和压板组件 32的整体重量较轻， 并 且成本较低， 固定到工作台 22上后， 不容易损伤工作台 22的台面， 并且压板 组件 32采用铁材料制成， 使压板组件 32具有很好的耐磨性， 使机体使用寿命 L.
较长。
可以理解， 由于护罩组件 30的材料选择较为宽泛， 并且由于其由多个元件 组件， 每个元件材质可以不同， 因此， 在此限于篇幅不进行详细介绍， 本领域 技术人员根据现有技术将多种材质的元件组合， 实现护罩组件 30 与压板组件 32的整体重量小于 1千克。 比如支架 52、延伸臂 54和延展罩体 55采用铝合金 材料， 其他元件 （除必要的螺钉） 采用塑料制成。
工作台 11上还设有纵 T形槽 44和横 T形槽 45。 纵 T形槽 44 自工作台 11 的前部向工作台 11的后部延伸。横 T形槽 45位于开口 40的前侧， 与纵 T形槽 44相交， 从而将整个工作台的上表面 36分成了四个部分。 横 T形槽 45和纵 T 形槽 44分别的自工作台 22的一个侧壁开始延伸， 直至相对平行设置的另一个 侧壁。 纵 T形槽 44和横 T形槽 45的横截面形状相同， 而且纵 T形槽 44和横 T 形槽 45的底部还开设有若干个沿着 T形槽延伸方向间隔设置的通孔用于连接固 定导尺 （图中未示出 ）。
上表面 36的表面积小于 0.18平方米，其具有平行于横 T形槽 45延伸方向 的宽度 W和相对于所述宽度 W的长度 L。 在本实施方式中， 上表面 36的表面 积为 0.172平方米， 宽度 W为 0.4米， 长度 L为 0.43米。 如此设置可以使工作 台 22的体积不会过于庞大， 同时又能满足使用者的需求。
工作台 22采用金属材料制成， 其整体重量小于 2千克。 在本实施方式中， 请一并参阅图 1、 图 2和图 3, 工作台 22包括框架 23和安装在所述框架 23上 的面板 25a、 面板 25b、 面板 25c以及面板 25d, 框架 23采用铝合金材料制成， 面板 25a、 面板 25b、 面板 25c和面板 25d均采用不锈钢材料制成， 工作台 22 的整体重量为 1.5千克。 如此设置可以使工作台 22的重量较轻， 并且使上表面 36主要由面板 25a、 面板 25b、 面板 25c 以及面板 25d组成， 使其具有很好的 耐磨性。 当然， 框架 23和前述面板 25a、 面板 25b、 面板 25c和面板 25d还可 以采用其它材料， 比如框架 23采用铸铁制成， 前述多个面板均可以采用青铜材 料等， 只要其实现的功能以及效果与本发明相同或相近似均应涵盖于本发明保 护范围内。
切割机构 26 固定于工作台 11的下表面 38并收容于支座 24 内 , 包括输出 旋转运动的马达 72, 带动穿过开口 40的锯条 28进行往复运动的往复杆 74, 将 马达 72的旋转驱动转换为往复杆 74的往复运动的运动转换机构 76, 以及可操 作的将锯条 28夹紧和释放的锯条夹紧释放机构 78。 锯条夹紧释放机构 78 包括 位于工作台 22或者支座 24上的操作元件 80。 , it ,L ^ θ , ^ ^ , , . ^ 、 L, , , ^ 切割机构 26的整体重量小于 3千克， 在本买施万式中， 切割机构 26的重 量为 2.5千克。
支座 24 包括具有若干支撑脚 5 8 的基座 6 0和支撑壁 62。 在本实施例中， 工作台 22和基座 60大致呈方形， 4个大致呈部分截头圆锥形的支撑脚 58分别 设置在基座 60的四个角上， 支撑壁 62设置在相邻的两个支撑脚 58之间， 支撑 脚 58突出于支撑壁 62所在的面。
抽屉 64设于支座 24的前部， 用于收集灰尘。基座 6 0的两个前支撑脚上分 别设有切割机的主开关 6 8和调速开关 7 0。 本实施例中， 支座 2 4具有支撑壁， 本领域技术人员可以想到，仅设置若干支撑腿也可以将工作台 2 2以及切割机构 2 6支撑起来。 因此， 本发明中的支座 2 4也可以是由支撑腿构成的支架。
支座 24 采用轻质材料制成， 其重量小于 2 千克。 在本实施方式中， 支座 24采用塑料材料制成， 重量为 1 .8 千克。 如此设置可以使支座 24具有很好的 应力强度， 并且重量较轻。
切割机 20具有高度 H , 即支座 24背对工作台 22的表面至上表面 36的距 离， 高度 H小于 0.3米， 优选地其为 0.24米， 在不安装护罩组件 30时， 切割 机 20最多能够占用 0.05 16立方米的空间， 而在本优选的实施方式中， 其占用 0.04128立方米的空间。 由此可见， 与传统台式工具比较， 切割机 20 占用空间 较小， 结构更加紧凑。
本发明解决了传统台式工具体积大， 重量大， 不便于搬运的技术问题， 通 过结构和材质的设置， 实现切割机 20的整体重量小于 15千克， 使整个切割机 20具有很好的便携性。 在本实施方式中， 切割机 20的整体重量为 6.45千克， 加上常规的电缆线， 整个机体的重量小于 9千克。 如此设置， 使切割机 20体积 和重量都较小， 便于使用者搬运， 给使用者带来了便利。
参照图 4 , 切割机 20具有重心 0。 为了使搬运时用户接近性更好和搬运更 省力， 本发明建议搬运时， 切割机 20 的重心 0到人体的距离控制在一定的范 围内。 由于切割机的质量较大， 搬运时切割机 20总有一外表面靠近人体的某一 部位， 如腰部， 腿部等， 因此， 控制切割机 20 的重心 0到搬运时切割机靠近 人体的外表面的距离即控制了切割机 20的重心 0到人体的距离。 重心 0到人 体的距离是指切割机的重心到人体靠近切割机的部位的距离。
切割机外表面包括工作台的上表面 36、 基座底面 69、 支撑壁外表面。 支撑 壁外表面可以是图 1所示的支撑壁 62的外表面；也可以是定义的虚拟的外表面， 如当搬运时， 若支撑壁 62无法靠近人体某部位时， 则定义相应支撑壁所对应的 . . ^ , , . ^ , , , ^ ^ 工^台上衣 i¾ 36和基屋風面 69的外边缘构成的表面为支 壁夕 衣囟 , 夸见图 1 , 当用户搬运切割机时站在切割机的前部 （ 图 1 的左侧）， 则工作台上表面 36 和基座底面 69的前部外边缘定义的面为切割机的支撑壁外表面。
在本实施例中， 将切割机 20的重心 0到切割机工作台上表面 36、 基座底 面 69、 支撑壁外表面之一的距离设置为小于等于 0.24 米， 优选的， 该距离小 于等于 0. 1米。 切割机 20的重心 0到工作台上表面 36、 基座底面 69、 支撑壁 外表面之一的距离小于等于 0. 1米， 则搬运时， 切割机 20的重心 0到人体靠近 切割机的部位的距离也小于等于 0. 1 米， 这将使用户较接近切割机的重心， 搬 运也较省力。
为便于搬运切割机 20 , 参照图 1和图 4 , 在切割机 20上设置提手部， 本实 施例的提手部形式为设置在支座 24上的把手 3 1 , 优选地把手 3 1设置在支撑壁 62上， 并且在把手 3 1上设置有导轨 46 , 在支撑壁 62上设置有滑槽 48 , 把手 3 1借助导轨 46在支撑壁 62上的滑槽 48中滑动， 以安装或卸载把手 3 1 , 本领 域技术人员可以想到的是，本发明中的把手 3 1 同样可以采用螺丝固定方式与支 座相连接。 所述手提部的实现方式不限于此， 例如， 可在工作台 22靠近其外边 缘处设置一贯穿上表面 36和下表面 38的开口， 用户也可通过该开口提起切割 机。
参见图 4 , 当用户通过把手 3 1提起切割机时， 通过重心 0的垂直于地面的 直线必然经过把手的某一点， 该点是把手 3 1上受力最集中的一点， 本实施例称 为着力点 A , 在实施例中， 该着力点 A与重心 0的连线 AO上任一点与工作台 上表面 36或基座底面 69的距离小于等于 0. 1 米， 优选的， 连线 AO上各点与 工作台上表面 36 或基座底面 69 的距离相等， 即连线 AO 与工作台上表面 36 或基座底面 69平行， 此时， 提起切割机时， 上表面 36或基座底面 69相对水平 面垂直而不发生倾斜， 可以提供很好的人体接近性。
参照图 4 , 本实施例将切割机 20的重心 0靠近基座底面 69设置； 且本实 施例的工作台 22上的护罩组件 30保持在工作台 22上， 该护罩组件 30需占用 一定的空间； 另外， 由于支撑脚 58和支撑壁 62构成的切割机 20的支撑壁外表 面并不规则， 因此， 本实施例中将重心 0到切割机 20的基座 60的外表面， 即 基座底面 69的距离 H设置为小于等于 0.24米， 优选的， 该距离约等于 0. 1米。
为提供良好的用户界面， 本实施例中的把手 3 1具有纵长延伸的握持部分， 该握持部分延伸方向不仅与其附着的支撑壁 62所在的平面平行，而且与基座底 面 69平行。 当用户准备搬运切割机 20并倒置切割机 20使把手 3 1 向上后， 由 ^ „ ^ + 、 、 n T ^ 、 ， P rT1 . . ^ 于犯千 31 如此设置， 且基屋風面 69是平面， ¾可引导用尸幕近丞座 60的風面
69站立，当用户顺势握住把手 31 时，就会使重心 0离人体的距离较近。
为提供足够的强度， 把手 31本体由硬质材料制成， 并可在把手 31 内部设 置加强筋； 为了让用户通过把手 31搬运切割机 20时更舒适， 可在把手 31握持 部分上设置弹性包覆物，如橡胶垫、 软 PVC垫等。
为了不增加切割机的包装体积， 支撑壁 62围成的面积小于工作台 22和基 座 60的面积， 把手 31设置在支撑壁 62上， 把手 31 的外边缘位于工作台上表 面 36或基座底面 69的外边缘之内。
请参阅图 5, 为本发明第二实施例提供的切割机被搬运时的示意图。 本实 施例与第一实施例的区别是： 搬运时， 先将护罩组件 30从工作台 22上拆卸下 来， 随后倒置切割机 20使把手 31 向上， 由于工作台 22的上表面 36是平面， 用户可能会靠近工作台 22 的上表面 36站立， 将重心 0 与工作台的上表面 36 的距离 HI设置为小于等于 0.24米可获得较好的人体接近性。
请参阅图 6, 为本发明第三实施例提供的切割机的立体示意图。 本实施例与 第一实施例的区别在于， 无支撑脚 58, 原设置在支撑脚 58上的所述主开关和 所述调整开关可设置在适当的位置上 （图中未示出 ）， 工作台 22和基座之间仅 有 4个平面的支撑壁， 且这些支撑壁围成的面积小于工作台 22和基座 60的面 积。 把手 31设置在其中一面支撑壁 62上， 由于其相邻支撑壁 62'的宽度足够 直接靠近人体而不会被工作台 22或基座 60的外边缘阻挡， 可将重心 0到相邻 支撑壁 62'的距离设置为小于等于 0.24米。本实施例中的把手 31具有纵长延伸 的握持部分， 该握持部分的延伸方向不仅与支撑壁 62平行， 与支撑壁 62'也平 行， 且由于重心 0更靠近支撑壁 62'而不是支撑壁 62'的相对支撑壁 62", 因此 可以将把手 31 靠近支撑壁 62，设置， 这样可引导用户靠近支撑壁 62，站立， 从 而当用户顺势提起把手 31 时就会使重心 0离人体较近。若相邻支撑壁 62'的宽 度较小， 不足以直接靠近人体， 则定义支撑壁 62'所对应的工作台上表面 36和 基座底面 69的外边缘构成的面为切割机 20的支撑壁外表面， 可将重心 0与定 义的支撑壁外表面的距离设置为小于等于 0.24米。
本发明还有其他替换实施例， 例如， 当工作台 22 的上表面 36 与基座底面 69的距离小于 0.48米时， 可将重心 0设置在上表面 36与基座底面 69之间的 中心位置上， 则重心 0到上表面 36与基座底面 69的距离均小于 0.24米。 把手 31 平行于上表面 36和基座底面 69设置在支撑壁 62的中间位置， 用户通过把 手 31提起切割机时，无论是工作台 22的上表面 36还是基座底面 69靠近人体， , ^丄、 一 ，，
均可 ¾得衩好的人体接近性。
上述描述仅是以举例的方式列举了本发明的一些较佳实施例，而不是限制本 发明， 凡采用等同替换或等效变换所获得的技术方案均落在本发明的保护范围 内。

Claims

权 利 要 求 书
1 . 一种切割机， 其特征在于，
所述切割机包括：
具有开口的工作台， 所述工作台包括用于支撑工件的上表面；
支撑所述工作台的支座；
固定于所述工作台的下表面并收容于所述支座内的切割机构， 所述切割 机构包括
输出旋转运动的马达，
带动穿过所述开口的锯条往复运动的往复杆，
将马达的旋转运动转换为往复杆的往复运动的运动转换机构， 以及可操作的将锯条夹紧和释放的锯条夹紧释放机构。
2. 根据权利要求 1 所述的切割机， 其特征在于： 所述切割机的整体重量小于 15千克。
3. 根据权利要求 2所述的切割机，其特征在于：所述工作台采用金属材料制成， 其重量小于 2千克。
4. 根据权利要求 1至 3任一所述的切割机， 其特征在于： 所述上表面的表面积 小于 0. 18 平方米， 所述支座背对所述工作台的表面至所述上表面的距离小 于 0.3米。
5. 根据权利要求 4所述的切割机， 其特征在于： 所述支座的重量小于 2千克。
6. 根据权利要求 1至 5任一所述的切割机， 其特征在于： 所述切割机还包括安 装于所述上表面的护罩组件， 以及设置于所述护罩组件的压板组件， 且所述 护罩组件和所述压板组件的整体重量小于 1千克。
7. 根据权利要求 6所述的切割机， 其特征在于： 所述护罩组件具有一个距离所 述工作台距离最远的最远端，所述最远端至所述支座背对所述工作台的表面 的距离小于等于 0.37米。
8. 一种切割机， 其特征在于：
所述包括：
具有开口的工作台， 所述工作台包括用于支撑工件的上表面；
具有基座底面的基座；
设置于所述工作台与所述基座之间的支撑壁， 所述支撑壁定义有外表面； 固定于所述工作台的下表面并收容于所述支撑壁内的切割机构， 所述切割 机构包括： 输出旋转运动的马达， 带动穿过所述开口的锯条往复运动的往复杆，
1 将马达的旋转运动转换为往复杆的往复运动的运动转换机构；
所述切割机的重心至少与工作台上表面、 基座底面、 支撑壁外表面之一的 距离小于等于 240mm。
9. 如权利要求 8所述的切割机， 其特征在于： 所述切割机还具有提手部， 通过 所述提手部提起所述切割机时，所述提手部上的着力点与重' ^的连线上任一 点与所述工作台上表面或所述基座底面的距离小于等于 100mm。
10.如权利要求 9所述的切割机， 其特征在于： 通过提手部提起切割机时， 提手 部上的着力点与重心的连线与工作台上表面或基座底面平行。
1 1 .如权利要求 9至 10任一所述的切割机， 其特征在于： 所述提手部设置在支 撑臂上， 所述提手部具有纵长延伸的握持部分， 所述握持部分的延伸方向至 少与工作台上表面、 基座底面、 支撑壁外表面之一平行。
12.如权利要 1 1 所述的切割机， 其特征在于： 所述切割机的重心与基座底面的 距离小于等于 100mm; 所述提手部具有纵长延伸的握持部分， 所述握持部 分的延伸方向与基座底面平行。
13.如权利要求 1 1 所述的切割机， 其特征在于： 所述的工作台上可拆卸的设置 有护罩组件。
14.如权利要求 13 所述的切割机， 其特征在于： 当所述的护罩组件从工作台上 拆卸下来时， 所述切割机的重心与工作台上表面的距离小于等于 100mm; 所述提手部具有纵长延伸的握持部分，所述握持部分的延伸方向与工作台上 表面平行。
15.如权利要求 9所述的切割机， 其特征在于： 所述提手部设置在支撑臂上， 所 述切割机的重心到与设置提手部的支撑壁的相邻支撑壁的距离小于等于 100mm; 所述提手部具有纵长延伸的握持部分， 所述握持部分的延伸方向与 所述的相邻支撑壁平行。
2
PCT/CN2010/075813 2009-08-07 2010-08-09 切割机 WO2011015160A1 (zh)

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CN201010225015.X 2010-06-30
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