CN102581378B - Cutting tool - Google Patents
Cutting tool Download PDFInfo
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- CN102581378B CN102581378B CN201110008358.5A CN201110008358A CN102581378B CN 102581378 B CN102581378 B CN 102581378B CN 201110008358 A CN201110008358 A CN 201110008358A CN 102581378 B CN102581378 B CN 102581378B
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- cutting tool
- handle
- angle
- grip part
- resettlement section
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Abstract
The invention provides a cutting tool, which is used for cutting workpieces and comprises a handle, a casing, a motor and a saw blade, wherein the handle is provided with a holding portion, the casing is connected with the handle, the motor is contained in the casing, and the saw blade driven by the motor is capable of cutting the workpieces. The handle comprises the holding portion and a containing portion, wherein the holding portion is used for holding, and the containing portion parallel or perpendicular to the holding portion is used for containing a battery pack. By additionally arranging the containing portion for containing electronic devices on the cutting tool, no electronic devices or few electronic devices are arranged in the handle, so that the size of the handle can be effectively reduced, and the handle is better in holding comfortableness.
Description
Technical field
The present invention relates to a kind of cutting tool, especially a kind of cutting tool of hand-held.
Background technology
Existing portable cutter, as sweep-saw, reciprocating saw or electric circular saw, all utilizes the space of handle inside to accommodate electronic device, as battery etc., owing to being limited to the size of battery self, makes handle often thicker, and user grips very uncomfortable in the course of the work.
Summary of the invention
The object of the present invention is to provide a kind of comfortable cutting tool that grips.
For achieving the above object, the invention provides a kind of cutting tool, for cut workpiece, comprising: the handle with grip part; The housing being connected with described handle; Be contained in the motor in described housing; By the driving of described motor, can be cut the saw blade of described workpiece; Described handle also comprise grip part for gripping with described grip part side by side or vertical setting for accommodating the resettlement section of power brick.
Preferably, between described resettlement section and described grip part, be connected with at least one support arm.
Preferably, in described grip part, contain control circuit board, described control circuit board at least can detect temperature or the voltage of described power brick.
Preferably, in described resettlement section, accommodate to be provided with by separate electrical motor and drive and for the fan component of cutting process drifting dust.
Preferably, described resettlement section lengthwise extends, and described power brick is accommodated in one end, and the other end is provided with the exhaust vent of described fan component.
Preferably, the angle of the maximum angle that the flow direction of the air-flow blowing out from described exhaust vent and surface of the work form is within the scope of 20 degree to 45 degree, and the angle of minimum angle is within the scope of 0 degree to 20 degree.
Preferably, the angle of described maximum angle is 25 degree, and the angle of described minimum angle is 10 degree.
Preferably, described resettlement section has for be resisted against the abutment face of described surface of the work when described cutting tool cuts described workpiece.
Preferably, described power brick is between described abutment face and described grip part.
Cutting tool in the present invention, by being additionally provided with the resettlement section of accommodating electronic device, can not arrange or arrange a small amount of electronic device thereby realize in handle, thereby can effectively reduce the size of handle, handle is had and preferably grip comfort level.
Accompanying drawing explanation
The side view of the cutting tool that Fig. 1 provides for the first embodiment, now, described cutting tool is in the first duty;
The side view of the cutting tool that Fig. 2 provides for the first embodiment, now, described cutting tool is in the second duty;
Fig. 3 is the perspective exploded view of cutting tool in Fig. 1;
Fig. 4 be in Fig. 2 cutting tool along the part cross-sectional schematic of straight line I-I;
Fig. 5 is the cross-sectional schematic that the retaining mechanism of cutting tool in Fig. 1 is in the lock state;
Fig. 6 is retaining mechanism in Fig. 5 cross-sectional schematic in release conditions;
Fig. 7 is the side view of the connecting axle of retaining mechanism in Fig. 5;
The side view of the cutting tool that Fig. 8 provides for the second embodiment, now, described cutting tool is in the first duty;
The schematic perspective view of the cutting tool that Fig. 9 provides for the second embodiment, now, described cutting tool is in the second duty;
Figure 10 is the schematic perspective view of the cutting tool in Fig. 9, and wherein, the fan resettlement section of cutting tool is cut open and exposed inner fan component;
Figure 11 is the schematic perspective view of cutting tool in Fig. 9, and now, described cutting tool is in inversion state;
Figure 12 is the side view of cutting tool in Fig. 9, and wherein, the air outlet of the fan component of cutting tool is partly broken away.
Related elements reference numeral in diagram is as follows:
10, cutting tool 11, handle 12, power brick
13, housing 14, retaining mechanism 15, the first bracing frame
16, limited bolt 17, saw blade 18, button
19, main body 20, installation portion 21, the first gripper shoe
23, the first abutment face 25, motor 27, transmission component
29, reciprocating lever 31, saw blade chuck 33, driven wheel
35, reduction gearing 37, gear shaft 39, eccentric shaft
41, electric machine casing 43a, the first transmission housing 43b, the second transmission housing
45, grip part 47, switch 49, the second bracing frame
51, the first support arm 53, the second support arm 55, against plate
56, the second abutment face 57, locating part 58, smooth surface
59, counterpart 60, operating parts resettlement section 61, locking member
63, operating parts 64, rotating shaft 65, lid
67, connecting axle 69, connecting axle limiting section 71, eccentric part
73, connecting portion 75, hole 100, cutting tool
111, handle 112, power brick 113, housing
115, the first bracing frame 117, saw blade 129, reciprocating lever
145, grip part 146, gripping space 147, switch
155, against plate 156, the second abutment face 159, mating part
163, operating parts 165, lid 168, accepting groove
170, operating side 176, resettlement section 177, power brick resettlement section
179, fan resettlement section 181, fan component 183, fresh air inlet
184, exhaust vent 185, fan hub 187, turbine
189, backing plate
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Refer to Fig. 1, first embodiment of the invention provides a kind of cutting tool 10.Cutting tool 10 comprises handle 11, is arranged on the power brick 12 on handle 11, with the housing 13 that handle 11 phase pivotables are connected, is arranged on housing 13 retaining mechanism 14 for lock handle 11 and housing 13 relative positions, and the saw blade 17 from stretching out in housing 13.
See also Fig. 1 and Fig. 3, housing 13 has the first gripper shoe 21 that the first bracing frame 15, the first bracing frames 15 comprise main body 19 and are connected to main body 19 one end.Main body 19 is hollow square tube shape, and described the first gripper shoe 21 has the first abutment face 23, centre bore is set in the first gripper shoe 21 and for saw blade 17, stretches out the first abutment face 23.When cutting tool 10 cut workpiece, the first abutment face 23 can be resisted against on the surface of workpiece, thereby for user provides support, makes cutting process more stable.Main body 19 is provided with installation portion 20 back to one end of the first gripper shoe 21, and installation portion 20 is buckle structure, and the first bracing frame 15 can be mounted on housing 13 by installation portion 20.
In housing 13, contain motor 25, the transmission component 27 being connected with motor 25, and the reciprocating lever 29 that drives and can partly stretch out housing 13 by transmission component 27.At reciprocating lever 29, away from the end of transmission component 27, saw blade 17 is installed.
See also Fig. 3 and Fig. 4, motor 25 has motor output shaft and is socketed in the driven wheel 33 on motor output shaft, when motor 25 energising work, by motor output shaft, drives driven wheel 33 to rotate around electrical axis X.
Certainly; those skilled in the art can also adopt other technologies scheme to realize the function of transmission component 27; such as setting-up eccentricity axle on driven wheel 33 coordinates with reciprocating lever 29 etc.; at this, no longer describe in detail, but as long as its function and effect and the present invention is same or similar all should be covered by protection domain of the present invention.
Reciprocating lever 29 extends along longitudinally.The bearing of trend of reciprocating lever 29 is vertical with electrical axis X, when reciprocating lever 29 drives saw blade 17 to cut work under the driving of transmission component 27, can drive saw blade 17 to move back and forth along described bearing of trend.So, motor 25 is arranged to a side of reciprocating lever 29, far away apart from handle 11, thus effectively having reduced in the course of work, the impact of the vibrations of motor 25 on user's hand, has improved operational comfort.In the present embodiment, reciprocating lever 29 one end connect by having frid (not shown) and the eccentric shaft 39 of bar hole, thereby realize the reciprocating motion that the rotation of reduction gearing 35 is changed into reciprocating lever 29.The other end of the relatively described frid of reciprocating lever 29 is saw blade chuck 31, and user can clamp or release saw blade 17 by operation saw blade chuck 31.After reciprocating lever 29 is mounted in housing 13, saw blade chuck 31 can stretch out outside housing 13, and is contained in the first bracing frame 15.
See also Fig. 1 and Fig. 3.Housing 13 can rotate with respect to handle 11 around electrical axis X, and user can limit the two position relationship by operation retaining mechanism 14.
It is cylindric and along the extension of longitudinally that grip part 45 is, and its one end is for installing power brick 12 by buckle mode, and its other end is connected with housing 13.
Switch 47 is arranged on grip part 45 near the position of housing 13, and is arranged at grip part 45 back to a side of user's face, and when user holds grip part 45, its forefinger just can touch the triggering key of switch 47, so arranges and has brought facility to user.Control circuit board (not shown) is also installed in grip part 45, testing circuit is installed on control circuit board, temperature and voltage for detection of the battery in power brick 12, and when temperature is higher than 75 degree, or voltage is lower than 7.8V, or when electric current is greater than 20A, can disconnect by gauge tap 47.So make power brick 12 be effectively protected, extended service life.
Certainly; temperature, voltage or electric current in control circuit board detection power brick is not limited to the numerical value of foregoing description; those skilled in the art's those numerical value that are subject to variation according to actual needs, but as long as the function of its realization is identical with the present invention or close, all should be covered by protection domain of the present invention.
The second bracing frame 49 comprises the first support arm 51, the second support arm 53 and against plate 55.One end that a free end of the first support arm 51 is installed power brick 12 with grip part 45 is connected, and a free end of the second support arm 53 is connected with the other end of grip part 45.Two free ends against plate 55 are connected with the free end of the second support arm 53 away from grip part 45 with the first support arm 51 respectively, and against plate 55 have one back to grip part the second abutment face 56 of 45, for expanding the area that cutting tool 10 is resisted against surface of the work, make cutting process more reliable and more stable.
Be appreciated that, in present embodiment, grip part 45, the first support arm 51, the second support arm 53 and formed a quadrangle against plate 55, wherein grip part 45 with against plate 55, be oppositely arranged, now just can, by the second abutment face 56 being set on plate 55 for increasing rest surface, can not affect again size and the structure of grip part 45.Grip part 45 with against plate 55 and described support arm, can also form " D " shape.Certainly, those skilled in the art also may further improve for the technical scheme in the present invention, but as long as the function of its realization and effect and the present invention are same or similar, all should be covered by protection domain of the present invention.
See also Fig. 1 and Fig. 2, cutting tool 10 has the first duty and the second duty, wherein when cutting tool 10 is during in the second duty, the area that cutting tool 10 is resisted against surface of the work is greater than cutting tool 10 when the first duty, cutting tool 10 is resisted against the area of surface of the work, so arrange and can make user tackle more flexibly use needs, when needs fast shut-off workpiece, just cutting tool 10 is adjusted to the first duty, when needs cut comparatively accurately, cutting tool 10 can be adjusted to the second duty, make the process of cut workpiece more reliable and more stable.And, when cutting tool 10 is converted to the second duty from the first duty, its center of gravity can be along the radially close handle 11 of electrical axis X, so when in the first duty, when user operates cutting tool 10 cut workpiece, meeting provides cutting required pressure by the gravity of the center of gravity of reciprocal and instrument 10 to saw blade 17, thereby has saved user from body forces, has reduced and has used fatigue; When cutting tool 10 is during in the second duty, its center of gravity is to the side shifting near handle 11, thereby makes user more stable to the control of cutting tool 10, contributes to improve cutting accuracy.
When cutting tool 10 is during in the first duty, only by the first abutment face 23 against workpiece, the first abutment face 23 and the second abutment face 56 intersect not coplanar, now cutting tool 10 is used for fast by cutting workpiece, preferably, the workpiece of cutting is as wooden stick, tubing or the sheet material that need to cut off along perpendicular etc.When user operates housing 13 with respect to handle 11 rotation, cutting tool 10 is in the second duty, even if the first abutment face 23 turns to respect to electrical axis X the position that the first abutment face 23 and the second abutment face 56 are resisted against surface of the work jointly, now cutting tool 10 is in the second duty, preferably, now by the first abutment face 23 and the second abutment face 56, be resisted against on the surface of a level of workpiece simultaneously.Owing to having increased rest surface, make cutting work obtain more stablizing the support that can arrive, now cutting tool 10 goes for, along horizontal plane machining sheet, having very high cutting accuracy.
The first abutment face 23 is all parallel with electrical axis X with the second abutment face 56, and the first abutment face 23 can rotate around electrical axis X with respect to the second abutment face 56, so realize cutting tool 10 and there are described two duties, moreover, by the distance of electrical axis X to the first abutment face 23 and the second abutment face 56, equate, realize the first abutment face 23 and the second abutment face 56 can coplanarly be resisted against surface of the work.
The housing 13 of cutting tool 10 can be limited in certain angular range with respect to handle 11 rotations, so, can prevent that housing 13 is with respect to the rotation of handle 11 unrestricted angles, cause turning cylinder and retaining mechanism 14 easily to damage, and can know the angle setting between housing 13 and handle 11 while defining described two duties, make user's between switching fast, to user, brought facility.In the present embodiment, cutting tool 10 is changed while regulating between described the first duty and described the second duty, variable angle scope between the first abutment face 23 and the second abutment face 56 is 90 degree to 0 degree, when the angle between the first abutment face 23 and the second abutment face 56 is 90 while spending, cutting tool 10 is in described the first duty, when the angle between the second abutment face 23 and the second abutment face 56 is 0 while spending, cutting tool 10 is in described the second duty.Certainly, cutting tool 10 angle between the second abutment face 23 and the second abutment face 56 when the first duty is not limited to 90 degree, it is only comparatively preferred angle value, the angle value of this angle can also be for other angle be as 85 degree, 80 degree, 75 degree or 70 degree etc., or user can be when making housing 13 rotate with respect to handle 11, by retaining mechanism 14, the two is limited in to the position of described angle in non-zero degree, now cutting tool 10 also can carry out cutting tool.
Certainly, against plate 55, be installed on grip part 45 also with by other technical scheme, as the first support arm 51 being only set or the second support arm 53 etc. being only set, between plate 55 and grip part 45, be connected with at least one support arm.The shape of the second abutment face 56 also can need to be arranged to difformity according to different uses, as square, triangle, circle or other polygons etc.Because of as space is limited at this not for being installed on the technical scheme of grip part 45 against plate 55; and the shape of the second abutment face 56 enumerates; but as long as the function of its realization is same or similar with effect and the present invention of reaching, all should be covered by protection domain of the present invention.
When cutting tool 10 is after described the first duty is converted to described the second duty, now the sawtooth of saw blade 17 can be towards the second bracing frame 49, now need to pull cutting tool 10 to carry out cutting work after user's gripping handle 11, in order to make the cutting tool 10 can be more comfortable in described second duty when work, user reinstalls after can unloading saw blade 17, make sawtooth back to the second bracing frame 49, now user just can gripping handle 11 promotes forward cutting tool 10 and carries out cutting work, has improved the comfort level of work.
In order to make the operation of cutting tool 10 more comfortable, the angular range of angle α between the bearing of trend of the grip part 45 of handle 11 and the second abutment face 56 is 10 degree to 30 degree, preferably, the angle value of this angle α is 15 degree, the most comfortable during now user's gripping handle 11 work.
Certainly, those skilled in the art can also realize cutting tool 10 by alternate manner and possess two kinds of duties, and the area that makes cutting tool 10 be resisted against surface of the work when the second duty is greater than it is resisted against the area of surface of the work when the first duty, such as on the first bracing frame 15 by the mode of pivot install one with the first gripper shoe 21 identical shaped against plate, described against plate have back to first surface and second surface, wherein second surface is as the second abutment face of cutting tool 10.When cutting tool 10 is during in the first duty, should can be contained in main body 19 inside against plate, and only by the first abutment face 23 of the first gripper shoe 21, be resisted against surface of the work, described the second abutment face and the first abutment face 23 are parallel to each other not coplanar, when cutting tool 10 is during in the second duty, operation is described rotates with respect to the first gripper shoe 21 against plate, make described first surface or second surface against plate, jointly be resisted against surface of the work with the first abutment face 23, thereby realize, expanded the area that cutting tool 101 is resisted against surface of the work.Certainly; cause as space is limited; described in only having described, against plate, can be installed in the mode of pivotable in the first gripper shoe 21 herein; realize cutting tool 10 and there is the first duty and the second duty; those skilled in the art also may make other change designs; such as described, against plate, can with respect to the first gripper shoe 21, move in the mode of translation etc.; at this, no longer enumerate as space is limited; but as long as the function of its realization is same or similar with effect and the present invention of reaching, all should be covered by protection domain of the present invention.
Refer to Fig. 3, retaining mechanism 14 has locking housing 13 and the lock-out state of handle 11 mutual alignment relations and the release conditions that allow housing 13 to rotate with respect to handle 11.
Retaining mechanism 14 comprises the locating part 57 that is arranged on the second transmission housing 43b, be arranged at the counterpart 59 that can accommodate locating part 57 on handle 11, can coordinate with locating part 57 and realize the operating parts 63 that the locking member 61 of locking function, exercisable drive locking member 61 are realized locking and discharged, and be installed on the lid 65 on counterpart 59, realize locking member 61 and locating part 57 are contained in the receiving space of lid 65 and counterpart 59 formation.
See also Fig. 3 and Fig. 5, locating part 57 is arranged at the second transmission housing 43b on the surface of the first transmission housing 43a, it has at least two limiting sections, described in each, limiting section all can coordinate with locking member 61 position relationship limiting between housing 13 and handle 11, in wherein said at least two limiting sections, there is a vertical position limiting section, locking member 61 can coordinate with vertical position limiting section, make the bearing of trend of reciprocating lever 29 vertical with the second abutment face 56, the first abutment face 23 and the second abutment face 56 are coplanar.In the present embodiment, locating part 57 is the axially extending cylindrical shape along electrical axis X, described limiting section is the limited impression extending along electrical axis X being arranged in locating part 57 exterior lateral sides, and described limited impression is for coordinating the position that limits handle 11 and housing 13 with locking member 61.Preferably, the quantity of described limited impression is a plurality of and adjacent setting, so make the circumferential exterior surface of locating part 57 be covered with limited impression, so can realize by locking member 61, coordinating with limited impression to realize housing 13 is limited in to a plurality of positions, user just can be according to actual needs like this, adjustment housings 13, with respect to the angle of handle 11, has met user demand greatly arbitrarily.
See also Fig. 3, Fig. 5 and Fig. 6, locking member 61 is for coordinating with locating part 57, can realize and limit housing 13 with respect to the position of handle 11, it is exercisable in limiting housing 13 with respect to the locked position in relative rotation of handle 11, and allow housing 13 with respect to handle off-position in relative rotation, make accordingly retaining mechanism 14 be in the lock state and release conditions.When user need to regulate the duty of cutting tool 10, just operating locking member 61 makes it in off-position, after duty has regulated, just operating locking member 61 makes it in locked position, so arrange and make user regulate very easily the duty of cutting tool 10, and can be stable after having regulated be locked in target duty, the course of work is stablized more comfortable.
In the present embodiment, locking member 61 lengthwises extend and mid portion possesses certain radian, make its part surround locating part 57, and locating part 57 is positioned at the side near locking member 61 centers of circle.Locking member 61 one end are installed on counterpart 59 by connecting axle 67, and the other end is connected with operating parts 63.Locking member 61 is locking face towards the surface of described locating part 57, be the arc inner surface of locking member 61, when locking member 61 is during in locked position, described locking face can with locating part 57 phase close contacts, corresponding retaining mechanism 14 is in described lock-out state, because locating part 57 surfaces are provided with described limited impression, make discontinuity after described locking face and locating part 57 phase close contacts, thereby further increased the frictional force between the two, increased the rotary resistance between housing 13 and handle 11, thereby make spacing more firm between housing 13 and handle 11, when described locking face and the disengaging of described locating part, locking member 61 is in off-position, and now retaining mechanism 14 is in described release conditions.
In order to make locking member 61 there is good ductility, it adopts steel band to make, preferred its carbon steel that is 0.60% to 0.95% for phosphorus content is made, so arrange can make its make spacing firm be not prone to loosening, and the ductility of locking member 61 and life-span reach the best.
In order to make locking member 61 when the locked position, it is more firm with coordinating of locating part 57, on the described locking face of locking member 61, at least one projection is set, described projection is for meshing with described limited impression, preferred this protruding quantity is two, spacing comparatively firm stable, and technique is simple.After described projection is meshed with described limited impression, described locking face near the region of described projection also and described locating part close contact make that position relationship between locking member 61 and locating part 57 limits more firm.
The limiting section that is appreciated that locating part 57 does not limit to the mode that adopts limited impression, and it can be also projection, and corresponding locking member 61 can arrange limited impression and coordinate and realize retaining mechanism 14 in described lock-out state with described projection.Those skilled in the art also may make other change design under technology enlightenment of the present invention, but as long as the function of its realization and effect and the present invention are same or similar, all should be covered by protection domain of the present invention.
More stable for connecting axle 67 is installed, one end of connecting axle 67 is installed on counterpart 59, and the other end is installed on lid 65.
See also Fig. 3, Fig. 5 and Fig. 7, in order to prevent that locking member 61 is through occurring after long-time use when lax, cause spacing loosening problem, the connecting axle 67 that locking member 61 is connected to counterpart 59 can be an eccentric shaft, and rotate by operating described eccentric shaft, the eccentric axis that makes described eccentric shaft changes with respect to the distance of locating part 57, realizes the rate of tension that regulates locking member 61.Be that described connecting axle 67 comprises the connecting axle limiting section 69 that extends and have the circumferential flank of tooth along central axis, and the eccentric part 71 that extends and connect locking member 61 from connecting axle limiting section 69 bias, at eccentric part 71, away from the end of connecting axle limiting section 69, connecting portion 73 is set, and connecting portion 73 extends with connecting axle limiting section 69 coaxial lines.Connecting portion 73 is for connecting with lid 65.The position that counterpart 59 is installed connecting axle limiting section 69 arranges the hole 75 that can join with connecting axle limiting section 69 shapes.When there is spacing loosening problem, user can take out connecting axle 67 from hole 75, and turn an angle around the central axis of connecting axle limiting section 69, due to the setting of eccentric part 71 with connecting axle limiting section 69 bias, thereby the eccentric axis of eccentric part 71 is rotated with respect to described central axis, realize described eccentric axis to the distance of locating part 57 and changed, impelled locking member 61 by further tensioning, to make locking member 61 tightr with coordinating of locating part 57.
Above-mentioned handle 11 is connected with locating part 57 pivotables of housing 13 by counterpart 59, and by locking member 61 the two position relationship of locking, for make between handle 11 and housing 13 be connected more stable, in the inner side of counterpart 57, be provided with the smooth surface 58 contacting with the outer surface of locating part 57 all the time, no matter retaining mechanism 14 is in described lock-out state or release conditions, smooth surface 58 contacts with the outer surface of locating part 57 all the time.Outer surface corresponding to locating part 57 arranges limited impression, and smooth surface 58 contacts with the top of the sidewall of each limited impression.So make between handle 11 and housing 13 be connected highly stable, when locking member 61 is during in locked position, locating part 57 back to a side of locking member 61 can with smooth surface 58 tight butt mutually, for the spacing reaction force that provides between locking member 61 and locating part 57, when locking member 61 is during in off-position, smooth surface 58 contacts with locating part 57, thereby makes stable the rotating with respect to handle 11 of housing 13, realize between the two and can not shake, thereby improved operational comfort.
Refer to Fig. 3, Fig. 5 and Fig. 6, operating parts 63 can operated tension or is loosened locking member 61, thereby makes locking member 61 in locked position or off-position.In the present embodiment, operating parts 63 is a spanner, and its one end is operating portion, and the other end is hub switch side cylindraceous, and has operating parts pivot center V, at hub switch side eccentric setting, has rotating shaft 64, and is connected with locking member 61 by rotating shaft 64.Operating parts 63 has operating parts locked position and the operating parts off-position corresponding with the locked position of locking member 61 and off-position.Operating portion when user's operating operation part 63, operating parts 63 is clockwise rotated along direction E with respect to the operating parts pivot center V of hub switch side, now rotating shaft 64 can be rotated with respect to described operating parts pivot center V, and then drive the projection of locking member 61 and the limited impression of locating part 57 to mesh, even if locking member 61 is in locked position, now operating parts 63 is in described operating parts locked position; Operating portion when user's operating operation part 63, operating parts 63 is rotated counterclockwise along direction F with respect to operating parts pivot center V, now rotating shaft 64 can be cancelled the pulling force to locking member 61, make the limited impression of the projection disengaging locating part 57 of locking member 61, be locking member 61 in off-position, now operating parts 63 is in described operating parts off-position.
Operating parts pivot center V is parallel with electrical axis X, thereby the radial displacement that makes operating parts 63 drive the link of locking member 61 to produce relative electrical axis X by rotating shaft 64, even if one end that locking member 61 is connected with operating parts 63 is the radially generation displacement along electrical axis X with respect to handle 11, realize retaining mechanism 14 and be in the lock state.Because electrical axis X is vertical with the bearing of trend of reciprocating lever 29, so operating parts pivot center V is also vertical with the bearing of trend of reciprocating lever 29, now motor 25 lays respectively at the relative both sides of reciprocating lever 29 with retaining mechanism 14, thereby makes complete machine structure compact and reasonable more.
Certainly, operating parts 63 is not limited to the technical scheme of foregoing description, those skilled in the art also may make other change designs under technology enlightenment of the present invention, as there is the slippage button of position attributive function, at counterpart 59 groove is circumferentially set, described slippage button can slide in described groove, and by some breach are set in recess sidewall, and some projections are set on button coordinate with described breach, realize the position that limits described slippage button, one end of locking member 61 is connected with described slippage button, when the described slippage button of operation is during in different position, just can realize and drive locking member 61 in described locked position or described off-position.Certainly, cutting tool 10 also can not have operating parts 63 and one end part of locking member 61 parts of attended operation originally 63 is stretched out to counterpart 59, and on counterpart 29, projection is set, the part of stretching out counterpart 59 at locking member 61 arranges through hole, user can make described through hole match with described projection by manual operation locking member 61, realize locking member 61 in described locked position, and can operate locking member 61 and make described through hole separated with described projection, realize locking member 61 in described off-position.Certainly, those skilled in the art can also make other change designs, but as long as the function of its realization and the effect that reaches are identical with the present invention or close, all should be covered by protection domain of the present invention.
Refer to Fig. 3, lid 65 forms receiving space for coordinating with counterpart 59, it is also for being fixed the connecting portion 73 of connecting axle 67 simultaneously, and there is the resettlement section (not shown) corresponding with the operating parts resettlement section 60 of counterpart 59, for part, accommodate the hub switch side of operating parts 63, so by operating parts resettlement section 60 and described resettlement section, realize spacing to operating parts 63 hub switch sides, and make that more overall structure is more reliable and more stable.By lid 65 is set, can make the installation of retaining mechanism 14 more firm, and can prevent contamination by dust retaining mechanism, thereby make outward appearance more attractive in appearance the service life of prolongation retaining mechanism 14 simultaneously.
Refer to Fig. 1 and Fig. 3, power brick 12 parts are contained in grip part 45, and in the relative both sides of power brick 12, a button 18 with limited bolt 16 is set respectively, and in the inside of button 18, resetting-mechanism (not shown) is installed, when power brick 12 is mounted to grip part 45, can be by the protruding (not shown) clamping of limited bolt 16 and grip part 45 madial walls, realize the position that limits power brick 12, when user need to take off power brick 12, thereby can press the button 18 throws off limited bolt 16 and described projection, now just can take advantage of a situation and pull out power brick 12.So arrange and make the dismounting of power brick 12 very convenient fast, to user, offer convenience.In the present embodiment, the battery in power brick 12 is lithium battery, and the voltage of power brick 12 is 12V, the small volume of power brick 12 now, meet the miniaturization demand of instrument, and can provide sufficient power for cutting work, thereby make the performance of cutting tool 10 reach best.
Certainly; the mode that power brick 12 is installed on grip part 45 is not limited to technique scheme; those skilled in the art can also adopt other modes that power brick is installed under technology enlightenment of the present invention; but as long as its technical spirit and the present invention are same or similar, all should be covered by protection domain of the present invention.Equally; the voltage of the power brick 12 in the present invention is not limited to 12V; its inner battery of installing is also not limited to lithium battery; those skilled in the art can change design according to actual needs, but as long as the function of its realization with the effect reaching and the present invention is same or similar all should be covered by protection domain of the present invention.
Refer to Fig. 8, the cutting tool 100 providing for second embodiment of the invention, it comprises handle 111, be installed on the power brick 112 of handle 111, pivotable is installed on the housing 113 on handle 111, be housed in the motor (not shown) in housing 113, by motor-driven reciprocating lever 129, be installed on the saw blade 117 on reciprocating lever 129.
The cutting tool 10 that the structure of cutting tool 110 and first embodiment of the invention provide is basic identical, its difference is: handle 111 against plate 155, there is the resettlement section 176 of accommodating electric elements, the inside against plate 155 is that hollow structure forms resettlement section 176, and between 176Yu grip part, resettlement section 145, be formed with and grip space 146, thereby 145Yu resettlement section, grip part 176 is set up in parallel mutually, and switch 147 is between 145Yu resettlement section, grip part 176.
Described resettlement section 176 comprises power brick resettlement section 177 and fan resettlement section 179.Extend along the longitudinally against plate 155 power brick resettlement section 177, and the bearing of trend of power brick resettlement section 177 is vertical and parallel with described the second abutment face 156 with the electrical axis of described motor all the time, its one end back to saw blade 117 has opening, for inserting for power brick 112, and by buckle mode, limit the position of power brick 112.So make very easily dismounting of power brick 112, and when cutting tool 100 is after conversion between described the first duty and the second duty, can not cause because of the variation of duty the inconvenient dismounting of power brick 112.
So power brick 112 is arranged on plate 155, and will only control circuit board (not shown) be arranged in grip part 145, because the size of control circuit board is relatively little, make the internal diameter size of grip part 145 can be more flexible, in the present embodiment, the internal diameter size of grip part 145 is less than the internal diameter size of grip part 45 in the first embodiment, so just can improve the gripping comfort level of handle 111, and improved against the space availability ratio of plate 155, made overall structure more reasonable.
Be appreciated that because the inside against plate 155 is that hollow structure forms resettlement section 176, thus also can think that the second abutment face 156 is positioned on resettlement section 176, resettlement section 176 back to grip part 145 surface.
Certainly, the position of resettlement section 176 is not limited to be arranged on plate 155, it also can be located at grip part 145 away from the side against plate 155, and also the structure by support arm described in similar the present invention connects, again or resettlement section 176 be arranged on grip part 145 away from one end of housing 113, and by the setting substantially vertical with the bearing of trend of grip part 145 of the bearing of trend of resettlement section 176, the bearing of trend of power brick 112 is approximately perpendicular to the bearing of trend of grip part 145.By the way, all can realize the electric elements that are contained in grip part 145, as power brick etc., be arranged in the resettlement section 176 of 145 outsides, grip part, realize the size of grip part 145 can do littlely, make to grip more comfortable.Certainly those skilled in the art also may make other technical scheme, but as long as the function of its realization and effect and the present invention are same or similar, all should be covered by protection domain of the present invention.
See also Fig. 9 and Figure 10, fan resettlement section 179 is positioned at a side of closing on the first bracing frame 115 against plate 155, be positioned at resettlement section 176 and power brick 112 back to one end.Fan component 181 is for carrying out drifting dust during in the second duty when cutting tool 100.Corresponding in fan resettlement section, 179 sides in the face of grip part 145 are provided with fresh air inlet 183, in resettlement section 176, on the end face of power brick 112, set out air port 184.When cutting tool 100 is when the second duty is cut work, it just can carry out drifting dust by fan component 181 independently.Due to the close together between air outlet 184 and saw blade 117, and when air-flow blows to the position of saw blade 117 cuttings from air outlet 184, the flow direction of air-flow and the angle of surface of the work are less, so arrange the chip that air-flow produces with cutting is moved along the direction that is roughly parallel to surface of the work, it can not hinder user's sight line, also avoided traditional drifting dust structure simultaneously, air-flow causes dust direction motion to vertical surface of the work under the ordering about of reaction force perpendicular to surface of the work, easily damage the phenomenon of user's eyes.
In the present embodiment, referring to Figure 12, there is an angular range in the flow direction and the surface of the work that from air outlet 184, blow to effective air-flow of surface of the work drifting dust.In described angular range, maximum angle is β, and minimum angle is γ, thereby forms effective drifting dust region between angle β and angle γ, and the position of saw blade 117 cut workpiece is positioned at described angular range, makes drifting dust effect reach best.The angle value of angle β is selected from 20 degree to 45 degree, and the angle value of angle γ is selected from 0 degree to 20 degree, and preferred, the angle value of angle β is 25 degree, and the angle value of angle γ is 10 degree.
Certainly, exhaust vent 184 can be more near the second abutment face 156, thereby make the air-flow blowing out from exhaust vent 184 be parallel to surface of the work, now also there is preferably drifting dust effect.
Be appreciated that; the mode of above-mentioned announcement provided with fan assembly 181 is not limited on the cutting tool 100 that is arranged on present embodiment announcement; those skilled in the art can be under technology enlightenment of the present invention; can select other cutting tool to adopt the mode of provided with fan assembly 181 in present embodiment; but as long as its mounting means adopting is identical with the present invention or close; and in order to realize and the same or analogous function of the present invention and effect, all should be covered by protection domain of the present invention.
See also Fig. 9 and Figure 10 in the present embodiment, fan component 181 comprises fan hub 185, fan electromotor (not shown), turbine 187.Wherein, fan hub 185 is contained in inside by fan electromotor and turbine 187, can protect internal structure.Fan electromotor is arranged at the center of turbine 187, thereby drives turbine 187 to rotate when energising work.Fan electromotor is DC brushless motor, and so setting can effectively extend the life-span of fan component 181, and independent fan electromotor driving turbine 187 realization raising drifting dust efficiency are set.Fan electromotor is connected with power brick 112 by switch 147, and is controlled by switch 147, and when switch 147 triggers, fan electromotor is just worked simultaneously and driven turbine 187 to carry out drifting dust work.
Refer to Fig. 8, grip between 145Yu resettlement section, 146 grip part, space 176, it grips grip part 145 from gripping space 146 through realizing for the finger for user, or accommodates for achieving the above object user's finger.
Be appreciated that; that in present embodiment, discloses is not limited to for accommodating the resettlement section 176 of electric elements the cutting tool 100 that installation is described in the present embodiment; it can also be installed on other portable power tools as portable electric annular saw, electric drill, electric hammer or screwdriver etc.; at this, do not enumerate as space is limited; but as long as its technical scheme adopting and the present invention are same or similar; and realized same or analogous function and effect, all should be covered by protection domain of the present invention.
Refer to Figure 11, in order to improve the wearability of the plane contacting with workpiece against plate 155 of handle 111, can wear-resisting coating be set on the surface contacting with workpiece against plate 155, maybe adopt high-abrasive material to make on this surface.In the present embodiment, be provided with a backing plate 189 on the surface against plate 155 towards workpiece, be resisted against on the surface of workpiece against plate 155 by backing plate 189, the second abutment face 156 is that backing plate 189 is towards the surface of workpiece.Backing plate 189 adopts high-abrasive materials to make as materials such as plastics, metals, and preferably it is made for metal material, as iron, stainless steel, aluminium alloy or copper etc.
In order to extend the service life of cutting tool 100, backing plate 189 can adopt dismountable mode to be installed on plate 155, so, makes after heavy wear appears in backing plate 189, just can change in time, thereby realize the service life that extends cutting tool 100.
See also Fig. 8 and Figure 12, on lid 165, be provided with the accepting groove 168 of accommodating operating parts 163 for part, and accepting groove 168 is along the circumferential extension of electrical axis X.Operating parts 163 is joined with accepting groove 168 phase shapes, when operating parts 163 is during in operating parts locked position, operating parts 163 can partly be contained in accepting groove 168, make the integral body of operating parts 163 be positioned at counterpart 159 with respect to the circumferential profile of electrical axis, thereby realize and rationally utilize space, reduced the volume of cutting tool 100.Preferably, operating parts 163 has an operating side 170, when operating parts 163 is during in described operating parts locked position, counterpart 159 can be stretched out with respect to the circumferential profile of electrical axis X along the radial component of electrical axis X in described operating side 170, so that user's operation.
Cutting tool in the present invention has the first duty and the second duty, and by the area that the second duty is resisted against surface of the work, be greater than it and in the first duty, be resisted against the area of surface of the work, cut workpiece can be highly stable reliable when the second duty to make it, be applicable to carry out meticulous cutting work, and described cutting tool is relatively little owing to being resisted against the area of surface of the work when the first duty, is applicable to the roughing such as fast shut-off object.The overall performance that has improved cutting tool is so set, and has promoted operational comfort, to user, bring great convenience.
The present invention is not limited to aforementioned embodiments, and those skilled in the art also may make other changes under the enlightenment of the technology of the present invention marrow, but as long as function and the present invention of its realization are same or similar, all should be covered by protection domain of the present invention.
Claims (8)
1. a cutting tool, for cut workpiece, comprising:
Handle;
The housing being connected with described handle;
Be contained in the motor in described housing;
By described motor, driven the saw blade that can cut described workpiece;
It is characterized in that:
Described handle also comprise grip part for gripping with described grip part side by side or vertical setting for accommodating the resettlement section of power brick, described resettlement section has for be resisted against the abutment face of described surface of the work when described cutting tool cuts described workpiece.
2. cutting tool as claimed in claim 1, is characterized in that: between described resettlement section and described grip part, be connected with at least one support arm.
3. cutting tool as claimed in claim 1, is characterized in that: in described grip part, contain control circuit board, described control circuit board at least can detect temperature or the voltage of described power brick.
4. cutting tool as claimed in claim 1, is characterized in that: in described resettlement section, accommodate to be provided with by separate electrical motor and drive and for the fan component of cutting process drifting dust.
5. cutting tool as claimed in claim 4, is characterized in that: described resettlement section lengthwise extends, and described power brick is accommodated in one end, and the other end is provided with the exhaust vent of described fan component.
6. cutting tool as claimed in claim 5, is characterized in that: the angle of the maximum angle that the flow direction of the air-flow blowing out from described exhaust vent and surface of the work form is within the scope of 20 degree to 45 degree, and the angle of minimum angle is within the scope of 0 degree to 20 degree.
7. cutting tool as claimed in claim 6, is characterized in that: the angle of described maximum angle is 25 degree, and the angle of described minimum angle is 10 degree.
8. cutting tool as claimed in claim 1, is characterized in that: described power brick is between described abutment face and described grip part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110008358.5A CN102581378B (en) | 2011-01-14 | 2011-01-14 | Cutting tool |
| PCT/CN2012/070212 WO2012094997A1 (en) | 2011-01-14 | 2012-01-11 | Reciprocating cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110008358.5A CN102581378B (en) | 2011-01-14 | 2011-01-14 | Cutting tool |
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| Publication Number | Publication Date |
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| CN102581378A CN102581378A (en) | 2012-07-18 |
| CN102581378B true CN102581378B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110008358.5A Active CN102581378B (en) | 2011-01-14 | 2011-01-14 | Cutting tool |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544021A (en) * | 2018-06-01 | 2018-09-18 | 浙江开创电气有限公司 | The fast clamp mechanism of reciprocating saw and reciprocating saw |
| CN113618930B (en) * | 2020-05-07 | 2023-08-11 | 苏州宝时得电动工具有限公司 | Cutting machine |
| CN114523154A (en) * | 2022-04-24 | 2022-05-24 | 启东锋刃工具有限公司 | Electric tool with saw blade clamping device |
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| CN1974093A (en) * | 2005-11-28 | 2007-06-06 | 百得有限公司 | Power tool having means for removing debris from workpiece |
| CN101513730A (en) * | 2004-02-20 | 2009-08-26 | 密尔沃基电动工具公司 | A band saw |
| CN101714647A (en) * | 2008-10-08 | 2010-05-26 | 株式会社牧田 | Battery pack for power tool, and power tool |
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| US5007172A (en) * | 1990-06-13 | 1991-04-16 | Milwaukee Electric Tool Corporation | Quick change guide shoe |
| EP1203628A3 (en) * | 2000-11-02 | 2003-02-12 | Milwaukee Electric Tool Corporation | Handle arrangement for a reciprocating saw |
| US20050000097A2 (en) * | 2001-12-03 | 2005-01-06 | Thomas Bednar | Handle arrangement for a power tool |
| US20060117580A1 (en) * | 2004-10-16 | 2006-06-08 | Serdynski David P | Power tool and method of operating the same |
| US20070074407A1 (en) * | 2005-09-30 | 2007-04-05 | Serdynski David P | Tool and method of using same |
| CN101642834B (en) * | 2008-08-06 | 2011-05-25 | 南京德朔实业有限公司 | Handheld reciprocating saw and operating method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101513730A (en) * | 2004-02-20 | 2009-08-26 | 密尔沃基电动工具公司 | A band saw |
| CN1974093A (en) * | 2005-11-28 | 2007-06-06 | 百得有限公司 | Power tool having means for removing debris from workpiece |
| CN101714647A (en) * | 2008-10-08 | 2010-05-26 | 株式会社牧田 | Battery pack for power tool, and power tool |
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