CN206445286U - Electric circular saw - Google Patents
Electric circular saw Download PDFInfo
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- CN206445286U CN206445286U CN201720083938.3U CN201720083938U CN206445286U CN 206445286 U CN206445286 U CN 206445286U CN 201720083938 U CN201720083938 U CN 201720083938U CN 206445286 U CN206445286 U CN 206445286U
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Abstract
The utility model discloses a kind of electric circular saw, including:Housing, motor, saw blade, bottom plate and depth support, housing includes the shield that part surrounds saw blade, motor is arranged in housing, saw blade can be motor driven and rotate, backplanes support housing is simultaneously connected with the rotation that housing is constituted using the first rotation of the pivot center parallel to saw blade as axle, and depth support is constituted with bottom plate and is connected using the rotation of the second rotation axis as the axle of the pivot center parallel to saw blade;Wherein, shield is formed with the guiding wall extended along an arc, depth support, which is included in, to be moved along the bearing of trend of guiding wall when housing opposed bottom is rotated by axle of first rotation and there is the distance between point of rotation rotated all the time with the contact wall for being oriented to the contact point that wall is contacted, contact point and depth support opposed bottom to fix.The swing of depth support in the electric circular saw is smaller.
Description
Technical field
The utility model is related to a kind of electric tool, especially a kind of electric circular saw.
Background technology
Electric circular saw is a kind of instrument by driving saw blade to carry out sawing action, with safe and reliable, rational in infrastructure, work
The features such as efficiency high.Electric circular saw is generally included:Housing, motor, bottom plate, angle adjusting mechanism, depth adjustment structure and guiding
Device.
When using electric circular saw, user is frequently necessary to carry out operation in high-altitude, it is therefore desirable to hangs up electric circular saw, is
This, electric circular saw can also include the hook for hanging.But the position of existing hook and structure setting are unreasonable, generally
The hand of the electric circular saw can be operated to cause interference to user, so as to influence the use of user.
Motor is arranged in housing, the phenomenon of radiating airflow backflow occurs at motor, so as to cause the temperature rise of motor
Effect is poor.
Angle adjusting mechanism is arranged on bottom plate, and it is for adjusting the angle of inclination that saw blade is cut for user.But
It is user when adjusting angle of inclination, it is generally difficult to fast and accurately realize the setting at angle of inclination.
Depth adjusting mechanism is used for the depth of cut that saw blade is adjusted for user, but existing depth adjusting mechanism is often
There is the error for swinging and causing graduation indication.
Guider is used to guide saw blade to realize straight cuts, and existing guider can mostly just realize short distance
Straight cuts.
In addition, saw blade is generally attached on main frame by existing electric circular saw by screw, so when needing dismounting saw blade,
The servicing units such as screwdriver are needed to use, so as to be unfavorable for the operation of user.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is that providing a kind of depth support swings small electricity circle
Saw.
In order to realize above-mentioned target, the utility model is adopted the following technical scheme that:
A kind of electric circular saw, including:Housing, motor, saw blade, bottom plate and depth support, housing include part and surround saw blade
Shield, motor is arranged in housing, and saw blade can be motor driven and rotate, backplanes support housing and with housing constitute with parallel to
The first rotation of the pivot center of saw blade is connected for the rotation of axle, and depth support is constituted with turning parallel to saw blade with bottom plate
Second rotation axis of shaft line connects for the rotation of axle;Wherein, shield is formed with the guiding wall extended along an arc, depth
The bearing of trend that support is included in guiding wall in edge when housing opposed bottom is rotated by axle of first rotation is moved and had
All the time between the point of rotation that the contact wall of the contact point contacted with guiding wall, contact point and depth support opposed bottom are rotated
Distance fix.
Further, the distance between point of rotation that contact point and depth support opposed bottom are rotated be more than or equal to 50mm and
Less than or equal to 150mm.
Further, depth support is also formed with along the circular arc parallel to first rotation direction depth of penetration support
Hole, electric circular saw also includes being fixedly connected with the casing and through the slide bar of circular hole, and slide bar coordinates with circular arc interporal lacuna.
A kind of electric circular saw, including:Housing, motor, saw blade, bottom plate and depth support, motor are arranged in housing, saw blade energy
It is motor driven and rotates, backplanes support housing is simultaneously constituted with the first rotation of the pivot center parallel to saw blade with housing
Connected for the rotation of axle, depth support constitutes turning by axle of the second rotation axis of the pivot center parallel to saw blade with bottom plate
Dynamic connection;Wherein, housing is formed with the guide rail for guiding the relative rotation between bottom plate and housing;Depth support is formed
Or it is fixedly connected with the guide frame that can be slided along the guide track of guide rail.
Further, the guide track of guide rail is the arc that one section of curvature changes.
Further, guide rail is the groove of the arc formed on housing, and guide frame is the energy formed on depth support
It is embedded in the lug boss of groove.
Further, lug boss is formed at the one of the point of rotation of the remote depth support opposed bottom rotation of depth support
End.
Further, groove includes being used for the guiding wall that guide protrusion part is slided, in housing opposed bottom with the first rotation
When axis is that axle is rotated, lug boss is included all the time with being oriented to the contact point that wall is contacted.
Further, housing includes:Part surrounds the shield of saw blade;Guide rail is formed at shield close to the one of motor
Side.
Further, depth support is also formed with along the circular arc parallel to first rotation direction depth of penetration support
Hole, electric circular saw also includes being fixedly connected with the casing and through the slide bar of circular hole, and slide bar coordinates with circular arc interporal lacuna.
It is of the present utility model to be beneficial in that:The swing of depth support in the electric circular saw is smaller.
Brief description of the drawings
Fig. 1 is the stereogram of the electric circular saw as one embodiment;
Fig. 2 is the plan of the electric circular saw in Fig. 1;
Fig. 3 is the profile of the electric circular saw in Fig. 1;
Fig. 4 is the profile of partial shell, motor and fan in Fig. 1;
Fig. 5 is the stereogram of the stop part in Fig. 4;
Fig. 6 is circular portion in Fig. 4 and stop part in a projection in the plane of the pivot center of rotor
Schematic diagram;
Fig. 7 is the sectional view of circular portion in Fig. 4, rotor and stop part;
Fig. 8 is the stereogram of partial shell in Fig. 1 and hanging hook assembly, and wherein connector is located at first position;
Fig. 9 is the plan of structure shown in Fig. 8;
Figure 10 is the stereogram of the hanging hook assembly in Fig. 8;
Figure 11 is the stereogram of partial shell in Fig. 1 and hanging hook assembly, and wherein connector is located at the second place;
Figure 12 is the plan of structure shown in Figure 11;
Figure 13 is the stereogram of partial shell in Fig. 1 and hanging hook assembly, and wherein hook member opposite joints turn over 90 degree;
Figure 14 is the part explosive view of the hanging hook assembly in Fig. 8;
Figure 15 is the stereogram of bottom plate in Fig. 1 and angle adjusting mechanism;
Figure 16 is the stereogram of another angle of bottom plate in Fig. 1 and angle adjusting mechanism;
Figure 17 is the explosive view of structure shown in Figure 15;
Figure 18 is the explosive view of another angle of structure shown in Figure 15
Figure 19 is stereogram when electric circular saw in Fig. 1 is adapted to guide rail;
Figure 20 is the stereogram of bottom plate in Figure 19 and guider;
Figure 21 to Figure 25 is the plan of the electric circular saw in Fig. 1, and they show that guider is moved from the second binding site
Move to the process of the first binding site;
Figure 26 is the stereogram of bottom plate in Fig. 1, shield and depth adjusting mechanism;
Figure 27 is the plan of structure shown in Figure 26;
Figure 28 is the part explosive view of structure shown in Figure 26;
Figure 29 is the part explosive view of another angle of structure shown in Figure 26;
Figure 30 shows the swing produced by depth support when depth support is only oriented to by slide bar;
Figure 31 shows the swing produced by depth support when depth support is oriented to by lug boss;
Figure 32 is the plan of working accessory in Fig. 1 and fastener;
Figure 33 is the stereogram of the fastener in Figure 32;
Figure 34 is the explosive view of the fastener in Figure 33;
Figure 35 is the explosive view of another angle of the fastener in Figure 33.
Embodiment
Power tool as shown in Figure 1 to Figure 3 is a kind of power tool of hand-held, specially a kind of electronic cutting work
Tool, the cutting tool is further a kind of electric saw, and more specifically, the electric saw can be electric circular saw 100.
As depicted in figs. 1 and 2, the electric circular saw 100 includes:Tool host 10, bottom plate 20, angle adjusting mechanism 30, depth
Governor motion 40, guider 50 and hanging hook assembly 60.
The technical solution of the utility model for convenience of explanation, also define upside as shown in Figure 1, downside, front side, after
Side, left side and right side.
As shown in Figure 1 to Figure 3, tool host 10 includes:Housing 11, motor 12, fan 13, working accessory 14 and driving
Axle 15.
Housing 11 is used to accommodate the structures such as motor 12, fan 13 and drive shaft 15.Motor 12 as electric circular saw 100 original
Motivation, it is used to export power and drives working accessory 14, and motor 12 includes the motor shaft that can be rotated with electrical axis 101 for axle
121.Fan 13 can be with the synchronous axial system of motor shaft 121, so as to be radiated to structures such as motors 12.Working accessory 14 is used as electricity circle
The functor of saw 100, it is used for implementation tool function, and working accessory 14 can be the cutting member for realizing cutting function, right
For electric circular saw 100, working accessory 14 is specifically as follows the saw blade of circle.Drive shaft 15 as electric circular saw 100 output,
It is used to export power, and drive shaft 15 is arranged on to drive working accessory 14 between motor 12 and working accessory 14, specifically,
Drive shaft 15 is used to drive saw blade to rotate around the pivot center 102 through saw blade itself.It will be appreciated by those skilled in the art that
, for electric circular saw 100, drive shaft 15 can be an independent axle being driven by motor 12, can also directly by
The motor shaft 121 of motor 12 is formed.
Specifically, housing 11 can include:Electric machine casing portion 111, main handle portion 112, secondary handle portion 113, connecting portion
114 and shield 115.Wherein, electric machine casing portion 111 is used to accommodate motor 12, and electric machine casing portion 111 is also included along around motor
The circular portion 111a of the circumferencial direction wound motor 12 of axis 101 and it is arranged on around the one end of portion 111a away from working accessory 14
End 111b.Main handle portion 112 and secondary handle portion 113 are respectively used to grip for two hands of user, to realize hands grasping
The purpose of the electric circular saw 100, enables a user to more stable operation electric circular saw 100.Connecting portion 114 is arranged on main handle
Between portion 112 and secondary handle portion 113, it is used to connect main handle portion 112 and secondary handle portion 113.Shield 115 is used to enter saw blade
Row part is surrounded, so as to avoid saw blade from the course of the work getting rid of scrap to user.
As shown in Figures 1 to 4, fan 13 is located in electric machine casing portion 111, and fan 13 is additionally arranged at the remote of motor 12
The side of working accessory 14, fan 13 is specially centrifugal fan 13.Housing 11 is also formed with air flow inlet 116 and air stream outlet
117, air flow inlet 116 connects the inside and outside of housing 11, and air stream outlet 117 connects the inside and outside of housing 11.Wherein, air flow inlet 116
Position on housing 11 can be corresponding with the electronic component such as the circuit board in housing 11, and air stream outlet 117 is arranged on motor 12
Side away from working accessory 14, and air stream outlet 117 is additionally arranged at one end around portion 111a close to end.So, electricity is worked as
Machine 12 drive fan 13 rotate when, fan 13 can extract the air-flow at air flow inlet 116 and so that air-flow flow through circuit board with
And got rid of after motor 12 to air stream outlet 117, so as to reach the effect radiated to motor 12 and circuit board.
As shown in Figures 1 to 6, specifically, motor 12 is external rotor electric machine, and it includes:Stator 122, rotor 123 and with
Upper described motor shaft 121.What stator 122 was fixed is arranged in housing 11, and motor shaft 121 is spindle rotationally arranged in housing 11
Interior, rotor 123 around stator 122 and constitutes synchronous axial system with motor shaft 121, and rotor 123 is also set up close to the side of fan 13
There is the passage 123a for causing air-flow to pass through.So, after motor 12 starts, air-flow enters from the front side of motor 12, stream
Through stator 122, then from the passage 123a outflows of the rear side of motor 12, air stream outlet 117 is finally flowed to.But, because turning
Son 123 is spindle rotationally arranged in housing 11, therefore there is certain gap between the inwall of rotor 123 and housing 11, enters one
For step, the gap refers to rotor 123 and the gap 124 having between portion 111a inwall.So, from motor 12
Rear side outflow air-flow be likely to by rotor 123 and around portion 111a inwall between gap 124 return from the front to the back
Stream, so as to cause the temperature of motor 12 to raise, and then is unfavorable for the radiating of motor 12.Therefore, electric circular saw 100 also includes being used for backstop
Air-flow is by motor 12 close to the stop part 125 of a lateral opposite side backflow of fan 13, and in other words stop part 125 is for backstop
The air-flow flowed out from the rear side of motor 12 from gap 124 of the rear side by rotor 123 and between portion 111a of motor 12 to
The front side backflow of motor 12, so as to improve the radiating effect to motor 12.
What stop part 125 was fixed is arranged in housing 11, furthermore, and stop part 125 constitutes fixed connect with stator 122
Connect.As shown in Figure 3 and Figure 4, stop part 125 includes being arranged on the backstop at rotor 123 and the gap 124 surrounding between portion 111a
Portion 125a.In addition, as shown in Figure 3 and Figure 5, throwing of the stop part 125 in the plane of a pivot center perpendicular to rotor 123
Shadow is at least partially disposed at outside projection of the rotor 123 in the plane.Wherein, the electricity of the pivot center of rotor 123 and motor 12
Arbor line 101 is overlapped.
Specifically, stop part 125 also includes:First extension 125b and the second extension 125c.First extension
125b extends from stopper section 125a radially toward the direction away from motor 12, and the first extension 125b is radially extending at this
Outside gap 124 to rotor 123 and between portion 111a.Second extension 125c from stopper section 125a radially toward by
The direction extension of nearly motor 12, and the second extension 125c is radially extending to rotor 123 and between portion 111a at this
Outside gap 124.In other words, the first extension 125b from stopper section 125a outer wall stretches out, the second extension 125c
Extended internally from stopper section 125a inwall.In addition, directions of the stopper section 125a along the pivot center parallel to rotor 123 is prolonged
Stretch, length of the stopper section 125a on the direction of the pivot center parallel to rotor 123 is more than the first extension 125b radially
On length, furthermore, length of the stopper section 125a on the direction of the pivot center parallel to rotor 123 is more than
10mm, so that stopper section 125a length long enough, and then more preferable windproof effect can be reached.It should be noted that
Here radial direction refers to the radial direction of the circumferencial direction centered on the pivot center of rotor 123.
Turn as shown in fig. 7, stopper section 125a and the full-size of gap 126 diametrically between portion 111a are less than
Son 123 and the minimum dimension of gap 124 diametrically between portion 111a, furthermore, stopper section 125a is with surrounding
The full-size of gap 126 diametrically between portion 111a is more than 0mm and is less than or equal to 2mm.It should be noted that footpath here
To the radial direction for referring to the circumferencial direction centered on the pivot center of rotor 123.
As illustrated in figures 1 and 8, electric circular saw 100 is hand held electric tool, and user is when operating electric circular saw 100, particularly
When user carries out operation in high-altitude, it is frequently necessary to lead to electric circular saw 100 after operation a period of time is carried out using electric circular saw 100
Hanging hook assembly 60 is crossed to hang up to be further continued for using later.Hanging hook assembly 60 can specifically include:Connector 61 and hook
Part 62, wherein, connector 61 is used to cause hanging hook assembly 60 to be connected to housing 11, and hook member 62 is used to hang electric circular saw 100
Hang up.
Specifically, as shown in Fig. 8 to Figure 10, hanging hook assembly 60 is arranged on the connecting portion 114 of housing 11, and positioned at master
Between handle portion 112 and secondary handle portion 113.Specifically, hook member 62 includes hook portion 621 and shank 622, wherein, shank
622 are constituted with connector 61 and are connected with first axle 103 for the rotation of axle, and first axle 103 also is normal to the rotary shaft of saw blade
Line 102.
As shown in Figure 8 and Figure 11, the relative housing 11 of the energy of connector 61 is moved between the first position and the second position, and
Connector 61 is moved to behind the second place by first position, and connector 61 generates rotation with respect to its own and connector 61 is relative
The rotation axis 104 for itself producing rotation also generates displacement, and connector 61 produces the rotation axis 104 of rotation with respect to itself
Perpendicular to first axle 103, the pivot center 102 of the rotation axis 104 of connector 61 also parallel with saw blade.
Specifically, housing 11 is formed with a deep-slotted chip breaker 114a, and deep-slotted chip breaker 114a is arranged on connecting portion 114, the arc
The grooves of shape groove 114a further for a circular arc.Connector 61 also includes move portion 611, and move portion 611 can be in deep-slotted chip breaker
Arcuately groove 114a bearing of trend movement in 114a, move portion 611 is moved to the two of deep-slotted chip breaker 114a in deep-slotted chip breaker 114a
Connector 61 is caused to be located at first position and the second place respectively during end.
As shown in Figure 8 and Figure 9, when connector 61 is located at first position, the hook portion 621 of hook member 62 now is basic
Extend downwardly, so that when user's both hands grip main handle portion 112 and secondary handle portion 113 respectively, hook portion 621 will not be to user
Hand cause interference, and then facilitate the operation of user.In fact, housing 11 can also be formed one have it is other shapes of with
The groove moved for move portion 611, for example, say that the groove enables to move portion 611 first to occur rotation and then occur again linearly
Movement, so, still enable to connector 61 after the second place is moved to by first position, connector 61 with respect to its from
Body generates rotation and connector 61 also generates displacement with respect to the rotation axis 104 that itself produces rotation, therefore, such reality
Apply mode and in fact fall within the scope that the utility model is protected.
As described above, deep-slotted chip breaker 114a is the groove of a circular arc, the cell wall institute of deep-slotted chip breaker 114a circular arc is right
The central axis answered is in first axle 103.Therefrom, it may be appreciated that, connector 61 arcuately groove 114a bearing of trend by
First position move to the process of the second place it is also assumed that be connector 61 with respect to housing 11 with one with connector 61 from
The misaligned second axis 105 of shaft axis 104 be axle revolution, the second axis 105 also with the no longer same plane of first axle 103
It is interior, and second axis 105 is also perpendicularly to first axle 103.It should be noted that in the present embodiment, when connector 61 is rotated
Second axis 105 that is to say deep-slotted chip breaker 114a circular arc cell wall corresponding to center line.As long as in fact, connector 61
Constitute what can be connected with one with the misaligned second axis 105 of the rotation axis 104 of connector 61 for the rotation of axle with housing 11
Scheme also belongs to the scope that the utility model is protected.
As shown in figs.10 and 14, deep-slotted chip breaker 114a runs through along the direction of the rotation axis 104 parallel to connector 61
Connecting portion 114, connector 61 also includes constituting the blocking portion 612 being detachably connected with move portion 611.Blocking portion 612 is used to hinder
Only move portion 611 departs from deep-slotted chip breaker 114a.So, can be first certainly mobile by blocking portion 612 when user installation hanging hook assembly 60
Disassembled in portion 611, then cause move portion 611 to pass through deep-slotted chip breaker 114a, then blocking portion 612 is attached to move portion 611,
So as to which hanging hook assembly 60 is attached into housing 11.
The use process of hanging hook assembly 60 is introduced in detail below, and as shown in Figure 8 and Figure 9, connector 61 now is located at arc
First position in shape groove 114a, at this moment user the electric circular saw 100 can be used to carry out sawing operation, and hook member 62 now
Interference is not resulted in the both hands for gripping main handle portion 112 and secondary handle portion 113 respectively of user, facilitates the operation of user.And
When user's pause needs to hang up the electric circular saw 100 using the electric circular saw 100, user can operate the hanging hook assembly 60
So that the arcuately groove 114a of connector 61 bearing of trend moves to the second place by first position.Specifically such as Figure 11 and Figure 12 institutes
Show, connector 61 now has moved to the second place, hook member 62 at this moment also substantially have rotated 90 degree with respect to housing 11.Such as
Shown in Figure 11 and Figure 13, at this moment user can continue to operate the hanging hook assembly 60 so that the opposite joints 61 of hook member 62 are with first
Axis 103 is that axle is rotated and is substantially rotated by 90 °.As shown in figure 13, now hook member 62 can cause with respect to the position of housing 11
The respective outer side edges such as hook member 62 and the crossbeam in working environment are so that the electric circular saw 100 to be hung up.
As shown in Fig. 1, Figure 15 and Figure 16, bottom plate 20 is constituted with housing 11 to be connected with a pivot axis 106 for the rotation of axle
Connect.Pivot center 102 of the pivot axis 106 perpendicular to saw blade.So, when the opposed bottom 20 of housing 11 is with pivot axis 106
When being rotated for axle, the saw blade run-off the straight of electric circular saw 100 is enabled to, so that electric circular saw 100 realizes inclined cut.
As shown in Fig. 1, Figure 15 to Figure 18, angle adjusting mechanism 30 is used for the opposed bottom 20 of guide housings 11 with pivot axis
106 by axle rotation and being capable of the angle that rotates of adjustment housings 11.Angle adjusting mechanism 30 includes:Angle scale 31, adaptor
32nd, sliding part 33, locating part 34 and operating element 35.
Angle scale 31 is fixedly installed to bottom plate 20, furthermore, and angle scale 31 can be integrally formed with bottom plate 20, angle
Arc groove 311 is formed with disk 31.The one end of adaptor 32 is connected with housing 11, other end connection sliding part 33, and sliding part 33 is wrapped
Include the sliding part 331 being slidably disposed in arc groove 311.One end that adaptor 32 is connected with housing 11 also with angle scale 31
Constitute and connected with pivot axis 106 for the rotation of axle so that sliding part 33 and housing 11 constitute can with housing 11 in the lump with
Pivot axis 106 is the connection that axle is rotated.So, when housing 11 drives sliding part 33 to be rotated in the lump with pivot axis 106 for axle
When, sliding part 331 can be slided in arc groove 311, and the distance that sliding part 331 is slided in arc groove 311 reflects shell
The angle that body 11 is rotated, that is to say the angle for reflecting the inclined cut of electric circular saw 100.Locating part 34 is used for limit slippage portion
331 are directed away from bottom plate 20 in arc groove 311 slides into predeterminated position.For example when sliding part 331 from arc groove 311 bottom of close to
When the angle that one end of plate 20 slides into the inclined cut for causing electric circular saw 100 is 45 degree of position, now locating part 34 can
Sliding part 331 is limited in into the position sliding part 331 is slided from being further continued for being directed away from the direction of bottom plate 20.The electricity
Annular saw 100 also includes coordinating with the location structure 312 of the position of positioning limit part 34, the number of location structure 312 with locating part 34
It can be multiple, so, when the location structure 312 of locating part 34 and diverse location coordinates, enable to sliding part 33 to slide
To different predeterminated positions.Operating element 35 is used for for user's operation, and when user operates the operating element 35, operating element
35 can also drive locating part 34 to depart from the cooperation with location structure 312.
Specifically, locating part 34 is arranged on angle scale 31 close to the side of housing 11, locating part 34 and the structure of angle scale 31
Into that can be connected using one parallel to the rotation of axis as the axle of pivot axis 106, locating part 34 also includes position with arc groove 311
Corresponding limiting section 341, sliding part 33 is spacing by limiting section 341.Operating element 35 is arranged on angle scale 31 away from spacing
It is formed with through hole 313 on the opposite side of part 34, angle scale 31, operating element 35 and locating part 34 are by through the through hole 313
Screw 36 is connected.Operating element 35 is specifically as follows the knob that synchronous axial system is constituted with locating part 34, so, is revolved when user operates
During button, locating part 34 can be with knob.Location structure 312 is directed away from the direction of locating part 34 to be arranged on angle scale 31
The groove of depression, locating part 34, which is formed with, can be embedded in the projection 342 of groove.It should be noted that those skilled in the art can be with
Understand, the position of groove and projection 342 can also be exchanged.
Operating element 35 also constitutes the cunning for the axis direction that can be rotated along the relative angle scale 31 of locating part 34 with angle scale 31
Dynamic connection, angle adjusting mechanism 30 also includes the bias piece 37 being arranged between operating element 35 and angle scale 31 of bias, partially
Casting die 37 can produce the direction movement for causing operating element 35 to be directed away from angle scale 31, so that the projection on locating part 34
342 move when turning to and being alignd with location structure 312 towards with the position that location structure 312 coordinates.Also enclosed on angle scale 31
Through hole 313 is provided with graduation mark 314, user can be turned at predetermined angle with operation knob, so as to realize electric circular saw 100
The quick positioning of different cutting angles.
Furthermore, angle adjusting mechanism 30 also includes locking piece 38, and locking piece 38 is used for lock slide 33 in circle
Position in arc groove 311.
It is described below and how carries out inclined cut using the electric circular saw 100, such as so that 45 degree are cut as an example:First, user
Pressing operation element 35 causes operating element 35 to overcome the bias of bias piece 37, so that locating part 34 departs from and a location structure
312 cooperation, at this moment again rotary operation elements 35 and cause operating element 35 turn at 45 degree of positions, locating part 34 at this moment
Rotated also with operating element 35 and turn to projection 342 and alignd with another location structure 312, then user unclamps operating element
35, at this moment in the presence of bias piece 37, locating part 34 is moved towards at the position coordinated with location structure 312, then user
Again so that sliding part 33 is slid into arc groove 311 at limiting section 341, end user passes through the lock slide 33 of locking piece 38
Position in arc groove 311, so as to realize the quick positioning of 45 degree of cuttings of electric circular saw 100.
As shown in Fig. 3, Figure 19 and Figure 20, bottom plate 20 is formed with the base plate plane 21 for being contacted with workpiece, and the bottom plate is put down
Pivot center 102 of the face 21 also parallel with saw blade.Guider 50 is used to be oriented to the electric circular saw 100 along straight cuts workpiece, leads
Include to device 50:First guide 51, the second guide 52 and engaging member 53.Wherein, the first guide 51 include be used for
The guide surface 511 of the contact aside of workpiece, guide surface 511 extends along first straight line 107;Second guide 52 is formed with use
In the guiding locking portion 521 coordinated with a guide rail 201, it is oriented to locking portion 521 and prolongs along the direction parallel with first straight line 107
Stretch.As shown in Figure 19 and Figure 25, engaging member 53 can cause guider 50 to be bound to the first binding site of bottom plate 20.Such as Figure 21
Shown, engaging member 53 can also cause guider 50 to be bound to the second binding site of bottom plate 20.User can be according to actual need
Want selectable so that guider 50 is bound to the first binding site or the second binding site.It is located at the in guider 50
During one binding site, the first guide 51 is located at the upside of base plate plane 21, and the second guide 52 is located under base plate plane 21
Side;When guider 50 is located at the second binding site, the first guide 51 is located at the downside of base plate plane 21, the second guide
52 are located at the upside of base plate plane 21.
So, when guider 50 is located at the first binding site, the first guide 51 is located at the upside of base plate plane 21,
Second guide 52 is located at the downside of base plate plane 21, and it is remote that the guiding locking portion 521 of the second guide 52 is also located at motor 12
The side of saw blade, so that being oriented to locking portion 521 can coordinate with guide rail 201, and then at this moment electric circular saw 100 can lead by second
It is oriented to realize straight cuts to part 52.When guider 50 is located at the second binding site, the first guide 51 is located at
The downside of base plate plane 21, the second guide 52 is located at the upside of base plate plane 21, the guide surface of the first guide 51 511
In side of the cutting member away from motor 12 so that guide surface 511 can coordinate with the side of workpiece, and then electric circular saw 100 this
When can be oriented to by the first guide 51 to realize straight cuts.
As shown in Fig. 3, Figure 19 to Figure 25, when guider 50 is located at the first binding site, the first guide 51 and the
Two guides 52 are respectively positioned on side of the motor 12 away from saw blade, and when guider 50 is located at the second binding site, first is oriented to
The guide 52 of part 51 and second is respectively positioned on side of the saw blade away from motor 12.Wherein, in guider 50 by the second binding site
When being moved to the first binding site, the first guide 51 is located at the upside of base plate plane 21, and at this moment the first guide 51 is in bottom plate
The position of the upside of plane 21 is easy to produce interference with motor 12, therefore, in the present case, also causing the first guide 51 and second
Guide 52 is constituted to be connected with the 3rd axis 108 for the rotation of axle.Specifically, the first guide 51 and the structure of the second guide 52
The 3rd axis 108 into rotation connection is parallel to the direction of first straight line 107.So, when guider 50 is by the second binding site
When being moved to the first binding site, at this moment the first guide 51 can turn to motor 12 away from saw blade with respect to the second guide 52
Side, so as to avoid the position of the location of first guide 51 and motor 12 from producing interference.
In addition, in other embodiments, the first guide 51 can also be constituted with the second guide 52 and is slidably connected, and it
The relative direction slided perpendicular to the direction of first straight line 107.So, when guider 50 by the second binding site is moved to
During one binding site, at this moment the first guide 51 can slide into side of the motor 12 away from saw blade with respect to the second guide 52,
So as to avoid the position of the location of first guide 51 and motor 12 from producing interference.
As shown in figure 20, engaging member 53, which is specifically as follows, can be bound to the chi of bottom plate 20.It can also be set on the surface of chi
There is the groove 531 for indicating the size of the cutting workpiece of electric circular saw 100.
The process that guider 50 is moved to the first binding site from the second binding site is introduced in detail below:Such as Figure 21 institutes
Show, guider 50 now is located at the second binding site, and at this moment guide surface 511 is located at the downside of base plate plane 21, is oriented to
Plane 511 can be with workpiece contact aside, then, as shown in Figure 22 to Figure 23, user be directed to device 50 from second combine
Position disassembles and overturn, subsequently, as shown in figure 23 and figure 24, and user causes the first guide 51 relative second to lead
Certain angle is rotated to part 52, preferably 90 degree here, finally, as shown in figure 25, user is directed to device 50 and is bound to again
First binding site.
As shown in Fig. 3 and Figure 26, it is axle that bottom plate 20, which supports housing 11 and also constituted with housing 11 with first rotation 109,
Rotation connection, pivot center 102 of the first rotation 109 also parallel with saw blade.Depth adjusting mechanism 40 is used to be oriented to
And the angle that the opposed bottom 20 of adjustment housings 11 is rotated with first rotation 109 by axle.
As shown in Figure 26 to Figure 29, depth adjusting mechanism 40 includes:Depth support 41 and slide bar 42.Depth support 41 and bottom
Plate 20 is constituted to be connected with the second rotation axis 110 for the rotation of axle, pivot center of second rotation axis 110 parallel to saw blade
102, second rotation axis 110 is parallel and misaligned also with first rotation 109.Depth support 41 is formed with circular hole
411, circular hole 411 is along the direction depth of penetration support 41 parallel to first rotation 109.Slide bar 42 constitutes solid with housing 11
Connect calmly, and slide bar 42 also extends through circular hole 411 and coordinated with the gap of circular hole 411.So, when 20 turns of 11 opposed bottom of housing
When dynamic, slide bar 42 can be slided in circular hole 411 along the bearing of trend of circular hole 411 and slide bar 42 will not all the time with circular hole
411 hole wall contact.Wherein, although slide bar 42 can play certain guide effect when being slided in circular hole 411, this meeting
So that the swing of depth support 41 is larger, so as to cause the scale indicated by the pointer for indicating graduation on depth support 41
There is deviation.In addition, it is known that manufacture electric circular saw 100 when, the opposed bottom 20 of depth support 41 rotate the point of rotation 412
Position it is possible that error, so, if if being oriented to by slide bar 42, because housing 11 is at relative bottom
Slide bar 42 is, as housing 11 is moved in the lump and slide bar 42 is relatively near apart from the point of rotation 412, therefore, to work as the point of rotation when plate 20 is rotated
When error occurs in 412 position, depth support 41 can be caused to produce a larger amplitude of oscillation.
And in the present case, housing 11 is also formed with relative between bottom plate 20 and housing 11 for guiding at shield 115
The guide rail 118 of rotation, the guide rail 118 is specially the groove of the arc formed on shield 115, and the groove of the arc is set
In the side of the close motor 12 of shield 115.Corresponding, depth support 41 is formed or is fixedly connected with can be along guide rail
The guide frame 413 that 118 guide track is slided, specifically, lug boss of the guide frame 413 for energy embedded groove, lug boss
Depth support 41 is formed at close to the side of shield 115.The cell wall of the groove of arc is the guiding wall 118a arcuately extended, convex
The portion of rising includes can be when it be axle rotation that the opposed bottom 20 of housing 11 is with first rotation 109 along the extension side for being oriented to wall 118a
Have to mobile contact wall 413a, on contact wall 413a all the time with being oriented to the contact point that wall 118a is contacted.More
For body, the lug boss is substantially in kidney-shaped, one in its two relative waist contacted all the time with a cell wall of groove so as to
To be considered foregoing contact wall 413a, another waist can form 0.5mm interval with another cell wall of groove, this
When each on the waist contacted all the time with groove of lug boss point can also be considered foregoing contact point.Wherein,
Lug boss is integrally formed with depth support 41, therefore, the contact point of lug boss and the rotation of the opposed bottom 20 of depth support 41 rotation
The distance between turning point 412 is fixed.So, the rotation to the opposed bottom 20 of housing 11 is realized by slip of the lug boss in groove
It is oriented to, the swing of depth support 41 can be reduced, and the error that the point of rotation 412 occurs in manufacture is to depth support 41
The amplitude of oscillation influence of produced swing is smaller.
Furthermore, lug boss is arranged on the one end of depth support 41 away from the point of rotation 412, and contact point and depth branch
The distance between point of rotation 412 that the opposed bottom 20 of frame 41 is rotated is more than or equal to 50mm and less than or equal to 150mm.So, can be with
Influence of the error that further the reduction point of rotation 412 occurs in manufacture to the swing produced by depth support 41.In addition, leading
It is the arc that one section of curvature changes to the guide track of track 118.
When depth support 41 is oriented to only by the slide bar 42 being arranged in circular hole 411, as shown in figure 30, such as
The fruit point of rotation 412 produces 0.5mm foozle, then depth support 41 can produce a larger amplitude of oscillation, can be with by Figure 30
Find out, the amplitude of oscillation angle that depth support 41 is produced is 1.04 degree.And when depth support 41 is convex by what is set on depth support 41
When the portion of rising is oriented to, as shown in figure 31, if the point of rotation 412 produces 0.5mm foozle, then depth support 41 can be produced
A raw less amplitude of oscillation, as seen from Figure 31, the amplitude of oscillation angle that depth support 41 is produced are 0.32 degree.It follows that convex
The setting in the portion of rising can eliminate the swing produced by the depth support 41 that foozle is brought, so as to improve the essence of depth instruction
Degree, and without cost is increased, do not increase the complexity of structure yet.
As shown in Fig. 2 and Figure 32, electric circular saw 100 also includes the fastening for being used to being attached to working accessory 14 into tool host 10
Device 70, wherein, working accessory 14 is formed with a mounting hole 141.Specifically, the working accessory 14 is fitted for foregoing
For the saw blade of electric circular saw 100, saw blade is run through in pivot center 102 direction of the mounting hole 141 along saw blade.
As shown in Figure 32 to Figure 35, fastener 70 includes:Fastener 71, holder 72, operating parts 73, rolling member 741,
The biased element 76 of bridgeware 75 and first.
Wherein, fastener 71 includes fastening part 711, and fastening part 711 passes through mounting hole 141, and fastening part 711 is also protruded into drive
Moving axis 15 is simultaneously connected with the composition rotation of drive shaft 15, and fastening part 711 can also drive whole fastening when relative drive shaft 15 is rotated
Device 70 is close or away from tool host 10.Holder 72 is rotatably attached to fastener 71, and holder 72 is also formed with
For the clamping face 721 contacted with working accessory 14.Operating parts 73 is used for for user's operation, and operating parts 73 is constituted with fastener 71
Synchronous axial system.Rolling member 741 is arranged between holder 72 and operating parts 73, and rolling member 741 being capable of opposing gripping members 72 and behaviour
Workpiece 73 is rolled.Bridgeware 75 is also disposed between holder 72 and operating parts 73, and bridgeware 75, which also has, can make holder 72
The first position state of synchronous axial system is constituted with operating parts 73 and holder 72 and operating parts 73 can be made to constitute the of relative rotation
Two location status.First biased element 76 applies to bridgeware 75 makes bridgeware 75 towards the bias of first position state motion
Power.
So, when user needs installation or dismantlement work annex 14, at this moment bridgeware 75 can be caused to overcome first
The bias of biased element 76 and positioned at holder 72 and operating parts 73 can be made to constitute the second place state relatively rotated, Ran Houyong
Family operates the operating parts 73, so as to drive fastener 71 towards the position for causing the close or remote working accessory 14 of clamping face 721
Put motion.At this moment relatively rotated because holder 72 is constituted with operating parts 73, so that user is applied to the power on operating parts 73
Need to overcome between the frictional force between fastener 71 and drive shaft 15 and rolling member 741 and holder 72 or operating parts 73
Force of rolling friction, and because force of rolling friction is smaller, therefore the power that user is applied on operating parts 73 is mainly used in overcoming fastening
Frictional force between part 71 and drive shaft 15, so that user can the installation of more labour-saving or dismantlement work annex 14.
Specifically, the surface of fastening part 711 is provided with external screw thread, so, and when fastening part 711 is rotated, it being capable of phase
Drive shaft 15 is moved on the axis direction that it is rotated.Fastener 71 also extends through the flat position hole 732a set on operating parts 73,
Fastener 71 is provided with the flat position portion 712 for coordinating with flat position hole 732a, passes through flat position portion 712 and flat position hole 732a cooperation
So that operating parts 73 constitutes synchronous axial system with fastener 71.
The number of bridgeware 75 is 2, and two bridgewares 75 are symmetrically arranged on one of holder 72 away from clamping face 721
Side.Specifically, one end of bridgeware 75 is rotatably connected to side of the holder 72 away from clamping face 721, the other end and connected
Connect the first biased element 76.The axis that the opposing gripping members 72 of bridgeware 75 are rotated is also parallel with 71 turns of 72 opposing fastener inserts of holder
Dynamic axis, and can turn to first position state and second place state when the opposing gripping members 72 of bridgeware 75 are rotated.Folder
Side of the gripping member 72 away from clamping face 721 is provided with holding tank 722, and the first biased element 76 is specially to be arranged on holding tank 722
Interior helical spring, one end of helical spring supports the bottom land of holding tank 722, the other end and supports bridgeware 75.The He of operating parts 73
Bridgeware 75 is respectively formed with when they cooperate so that holder 72 constitutes the first biography of synchronous axial system with operating parts 73
Dynamic portion 731a and the second driving section 751.Specifically, operating parts 73 includes gear ring portion 731 and end cap portions 732, gear ring portion 731
Inner circumferential is provided with internal tooth, and the internal tooth is the first driving section 731a.Corresponding, bridgeware 75 is also formed with can be with ring gear portion
The external tooth of 731 internal tooth engagement, the external tooth is the second driving section 751.
Operating parts 73 is also formed with for driving what bridgeware 75 overcame the first biased element 76 to be biased towards the second place
The drive division of state motion.Specifically, operating parts 73 also constitutes the axis direction of the rotation along fastener 71 with fastener 71
On be slidably connected, drive division is the first inclined-plane 732b for being formed at end cap portions 732 at the side of holder 72.Correspondence
, bridgeware 75 is formed with the second inclined-plane 752 that can coordinate with the first inclined-plane 732b.So, when operating parts 73 is towards close to folder
When the direction of gripping member 72 is slided, the first inclined-plane 732b drives the second inclined-plane 752 to make bridgeware 75 towards second place state motion.
In addition, rolling member 741 is specifically as follows the roller bolt in rolling bearing 74, rolling bearing 74 is arranged on holder 72
Between operating parts 73.The second biased element 77, the second biased element are additionally provided between operating parts 73 and rolling bearing 74
77 make the biasing force that it is directed away from the slip in the direction of holder 72 to the application of operating parts 73.
When working accessory 14, which is in, is locked by fastener 70 to drive shaft 15, the second biased element 77 bias behaviour
Workpiece 73 simultaneously causes operating parts 73 to be in the position away from holder 72, and the first biased element 76 bias bridgeware 75 simultaneously to turn
Change part 75 and be in first position state, at this moment the first driving section 731a cooperates with the second driving section 751, so that holder 72
Synchronous axial system is constituted with operating parts 73, if at this moment the direct rotating operation part 73 of user carrys out dismantlement work annex 14, then
User, which applies, not only to be needed to overcome the frictional force between fastener 71 and drive shaft 15 to the revolving force of operating parts 73 but also wants
Overcome the stiction between holder 72 and working accessory 14, and the stiction is larger, therefore user's rotary operating member 73
Can be relatively elaborate.And in the present case, when user needs dismantlement work annex 14, in fact, user can first pressing operation part
73, at this moment by the first inclined-plane 732b and the second inclined-plane 752 cooperation bridgeware 75 can be driven to turn to second place state,
So as to which the first driving section 731a and the second driving section 751 depart from, so operating parts 73 can opposing gripping members 72 rotate, Ran Houyong
Family rotary operating member 73 again, at this moment user apply to the revolving force of operating parts 73 only need to overcome fastener 71 and drive shaft 15 it
Between frictional force and rolling member 741 and holder 72 or operating parts 73 between force of rolling friction, and because force of rolling friction
It is smaller, therefore the power that user is applied on operating parts 73 is mainly used in overcoming the frictional force between fastener 71 and drive shaft 15,
Enable a user to more labour-saving and realize installation or dismantlement work annex 14.
In fact, the fastener 70 not only can be only used for saw blade being attached to saw class instrument, it can be also used for beating
Grinding is attached to angle mill, is not limited thereto certainly.
If it should be noted that the partial hole in this case is to run through some in a certain direction without strictly speaking bright its
Part, then the hole is also likely to be to be replaced by groove.In other words, the part groove in this case can also be replaced with hole, part
Hole can also be replaced with groove.
General principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
The technical scheme obtained, all falls within protection domain of the present utility model.
Claims (10)
1. a kind of electric circular saw, including:
Housing;
Motor, is arranged in the housing;
Saw blade, can be driven and rotate by the motor;
Bottom plate, supports the housing and is constituted with the housing with the first rotation of the pivot center parallel to the saw blade
Connected for the rotation of axle;
The housing includes the shield that part surrounds the saw blade;
It is characterized in that:
The electric circular saw also includes:
Depth support, the rotation using the second rotation axis of the pivot center parallel to the saw blade as axle is constituted with the bottom plate
Connection;
Wherein, the shield is formed with the guiding wall extended along an arc, and it is relative that the depth support is included in the housing
When the bottom plate is rotated by axle of the first rotation along it is described guiding wall bearing of trend move and with all the time with
The contact wall of the contact point for being oriented to wall contact, the contact point is rotated with the depth support relative to the bottom plate
The distance between point of rotation is fixed.
2. electric circular saw according to claim 1, it is characterised in that:
The distance between point of rotation that the contact point is rotated with the depth support relative to the bottom plate be more than or equal to 50mm and
Less than or equal to 150mm.
3. electric circular saw according to claim 1, it is characterised in that:
The depth support is also formed with along the circular hole for running through the depth support parallel to the first rotation direction,
The electric circular saw also includes the slide bar that the circular hole is fixedly connected with and passed through with the housing, the slide bar and the circular hole
Gap coordinates.
4. a kind of electric circular saw, including:
Housing;
Motor, is arranged in the housing;
Saw blade, can be driven and rotate by the motor;
Bottom plate, supports the housing and is constituted with the housing with the first rotation of the pivot center parallel to the saw blade
Connected for the rotation of axle;
It is characterized in that:
The electric circular saw also includes:
Depth support, the rotation using the second rotation axis of the pivot center parallel to the saw blade as axle is constituted with the bottom plate
Connection;
Wherein, the housing is formed with the guide rail for guiding the relative rotation between the bottom plate and the housing;Institute
State the formation of depth support or be fixedly connected with the guide frame that can be slided along the guide track of the guide rail.
5. electric circular saw according to claim 4, it is characterised in that:
The guide track of the guide rail is the arc that one section of curvature changes.
6. electric circular saw according to claim 4, it is characterised in that:
The guide rail is to be formed on the groove of the arc formed on the housing, the guide frame depth support
The lug boss of the groove can be embedded in.
7. electric circular saw according to claim 6, it is characterised in that:
The point of rotation that the remote depth support that the lug boss is formed at the depth support is rotated relative to the bottom plate
One end.
8. electric circular saw according to claim 7, it is characterised in that:
The groove includes being used to be oriented to the guiding wall that the lug boss is slided, in the relatively described bottom plate of the housing with described the
When one rotation axis is that axle is rotated, the lug boss includes the contact point contacted all the time with the guiding wall.
9. electric circular saw according to claim 4, it is characterised in that:
The housing includes:
Shield, partly surrounds the saw blade;
The guide rail is formed at the shield close to the side of the motor.
10. electric circular saw according to claim 4, it is characterised in that:
The depth support is also formed with along the circular hole for running through the depth support parallel to the first rotation direction,
The electric circular saw also includes the slide bar that the circular hole is fixedly connected with and passed through with the housing, the slide bar and the circular hole
Gap coordinates.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720083938.3U CN206445286U (en) | 2017-01-22 | 2017-01-22 | Electric circular saw |
US15/863,246 US10759080B2 (en) | 2017-01-22 | 2018-01-05 | Electric tool |
EP18151111.4A EP3351349B1 (en) | 2017-01-22 | 2018-01-11 | Electric tool |
US16/904,012 US11407138B2 (en) | 2017-01-22 | 2020-06-17 | Electric tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720083938.3U CN206445286U (en) | 2017-01-22 | 2017-01-22 | Electric circular saw |
Publications (1)
Publication Number | Publication Date |
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CN206445286U true CN206445286U (en) | 2017-08-29 |
Family
ID=59667894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720083938.3U Active CN206445286U (en) | 2017-01-22 | 2017-01-22 | Electric circular saw |
Country Status (1)
Country | Link |
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CN (1) | CN206445286U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113909564A (en) * | 2017-12-13 | 2022-01-11 | 南京德朔实业有限公司 | Electric circular saw |
CN115734857A (en) * | 2020-06-25 | 2023-03-03 | 费斯托工具有限责任公司 | Circular saw including blade mount for circular saw blade and method of attaching circular saw blade to circular saw |
-
2017
- 2017-01-22 CN CN201720083938.3U patent/CN206445286U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113909564A (en) * | 2017-12-13 | 2022-01-11 | 南京德朔实业有限公司 | Electric circular saw |
CN113909565A (en) * | 2017-12-13 | 2022-01-11 | 南京德朔实业有限公司 | Electric circular saw |
CN115734857A (en) * | 2020-06-25 | 2023-03-03 | 费斯托工具有限责任公司 | Circular saw including blade mount for circular saw blade and method of attaching circular saw blade to circular saw |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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