CN101116917A - Switch hood for cutter - Google Patents

Switch hood for cutter Download PDF

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Publication number
CN101116917A
CN101116917A CNA2007101376483A CN200710137648A CN101116917A CN 101116917 A CN101116917 A CN 101116917A CN A2007101376483 A CNA2007101376483 A CN A2007101376483A CN 200710137648 A CN200710137648 A CN 200710137648A CN 101116917 A CN101116917 A CN 101116917A
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extension spring
mentioned
cylindrical wall
switch hood
girff
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CNA2007101376483A
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CN101116917B (en
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奥村道男
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Makita Corp
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Makita Corp
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Abstract

The present invention provides a kind of switch hood of cutter. In the cutting machine of the portable circular sawing machine that user holds and moves etc., in the case where the switch hood covered to the circular saw blade outstanding of the lower surface from pedestal is exerted a force to closing direction, which can be more reliably maintained in its closed position. It consists of: between switch hood (20) and girff (13), it is folded with two extension springs (21,22), and improve the active force to the closed position side, and configure two extension springs (21,22) side by side on the direction vertical with main-shaft axis (J), realize the receiving of densification.

Description

The switch hood of cutting knife in the cutting machine
Technical field
The present invention relates generally in the cutting machine of a kind of circular sawing machine in portable usefulness etc., will be from the downside of the outstanding round cutter of the girff guard shield (being so-called protective cover) of the switching regulator that covers of the scope of half cycle roughly.
Background technology
The portable circular sawing machine that the user is hand-held and mobile possesses: be positioned over the base on the cutting member; Be bearing in the cutter body of the upper surface side of base, wherein, cutter body also possesses: as the motor of drive source; Cutting knife because of its circle of rotating; Cover the roughly girff of the scope of half cycle of cutting knife upside.The cutting knife downside roughly scope of half cycle is given prominence to from girff, and outstanding to the lower face side of base.To the outstanding scope of the lower face side of the base of cutting knife, cover by the switch hood that is called as so-called protective cover.The hub portion of the relative girff of this protective cover rotatably is supported, this hub portion swivel bearing cutting knife.
This switch hood, utilize and girff between the extension spring established of folder and to closing direction by the application of force.Under the state that base has been overlapped with the upper surface of cutting member, this cutting machine is moved along the cutting direct of travel, and with the leading section of this switch hood and the end butt of cutting member, and by consequent to of the effect of this switch hood to the external force of opening direction, make this switch hood overcome the active force of above-mentioned extension spring and relatively open.Open by switch hood, expose cutting knife and cut cutting member.When along with moving of cutting machine to switch hood when the effect of the external force of opening direction disappears, this switch hood can be back to the closed position because of the active force of extension spring, this moment will to the downside of the side-prominent cutting knife of base lower surface roughly the scope of half cycle cover.
Patent documentation 1: the Japan Patent spy opens the 2002-326120 communique
With regard to as the above-mentioned switch hood that has constituted with regard to, had following problem in the past.As mentioned above, this switch hood can be back to the closed position that covers cutting knife because of the active force of extension spring.Therefore, be back to the closed position reliably, and set the required active force of extension spring in order to make switch hood.Usually, this extension spring be located in girff hub portion around and the small gap between this girff and switch hood in.Therefore, when folder was established active force than the also big extension spring of required power, for example its coil diameter became big, and for it is held, and made the interval between this switch hood and the girff become big, and the result causes being difficult to realizing the problem of the densification of this cutting machine.Therefore, the active force with this extension spring is set in the required and sufficient scope usually, and makes its coil diameter as best one can little.
Like this, consider the densification of this extension spring and spatial accommodation thereof, and will be used for switch hood in the past in the active force of the extension spring of closing the side effect is set in the scope that can not reach the brute force (coil diameter is thick excessively) more than required.Therefore, in situation that this cutting machine for example held up upward etc., i.e. situation from the deadweight of this switch hood to its opening direction effect under, this switch hood might overcome extension spring and open.Under the situation of especially large-scale cutting machine, the weight of switch hood is big more, in the easy more unlatching of this switch hood during in the posture that makes progress of this cutting machine.
In addition, forming under combination extension spring and linkage the situation with the formation of the sufficient recuperability of acquisition switch hood, the motion space that need guarantee this linkage, and can cause in this regard realizing that the miniaturization of this cutting machine is comparatively difficult.
Summary of the invention
At this, the objective of the invention is to, even under the situation of the bigger switch hood of large-scale cutting machine and weight, still can strengthen fully to the active force (recuperability) of its closed position side and need not to increase interval between girff and the switch hood, even and inferior at this cutting machine in the situation of the posture that makes progress, also can reliably switch hood be maintained in its closed position.
Therefore, the present invention has formed the cutting machine of the following described formation of each technical scheme.
According to technical scheme 1 described cutting machine, folder is established a plurality of extension springs between this switch hood and above-mentioned girff, uses than the stronger active force of extension spring this switch hood to the closing direction application of force.These a plurality of extension springs upwards are configured with state arranged side by side in the footpath of the hub portion of girff.Here,, can increase its coil diameter, perhaps constitute, need to increase the interval between girff and the switch hood this moment the configuration side by side on the axis direction of hub portion of a plurality of extension springs in order to strengthen the active force of extension spring.To this, according to technical scheme 1 described cutting machine, by the footpath of a plurality of extension springs in hub portion upwards disposed side by side, and can only strengthen the active force of switch hood, and need not to increase the interval (spatial accommodation of hub portion axis direction) between girff and switch hood with the spatial accommodation of an extension spring.
Hence one can see that, according to technical scheme 1 described cutting machine, need not to increase the interval between girff and switch hood, can strengthen the active force to closing direction (recuperability) of this switch hood, even thus with this cutting machine under the situation of posture upwards, still can reliably this switch hood be maintained in its closed position.
According to technical scheme 2 described cutting machines, by first and second extension spring of configuration side by side upwards in the footpath of hub portion, with switch hood to the closing direction application of force.Therefore, need not to increase the interval between girff and switch hood, can with than the stronger active force of extension spring with switch hood to its closing direction application of force.
When opening when making switch hood overcome its active force, two extension springs are stretched.The first extension spring limit is twined the limit to the first cylindrical wall portion and is stretched, and the second extension spring limit is twined the limit to the second cylindrical wall portion and is stretched.Like this, owing to be stretched when different cylindrical wall portions twines respectively, institute can open this switch hood thus smoothly so that two extension springs can not be stretched with interfering mutually, also can close smoothly on the contrary.
According to technical scheme 3 described cutting machines, close switch hood, and remove of the winding of first extension spring, and remove of the winding of second extension spring with respect to the second cylindrical wall portion with respect to the first cylindrical wall portion.In the footpath of hub portion upwards, the second cylindrical wall portion is positioned between second extension spring of first extension spring of all sides and outer circumferential side.Therefore, when the axis direction that is positioned at hub portion when the end of the girff side of first extension spring and second extension spring is gone up with one side, in the process that first extension spring of interior all sides is disengaged with respect to the winding of the first cylindrical wall portion, this first extension spring can interfere with the second cylindrical wall portion that is positioned at its outer circumferential side, and its result might remove the winding of this first extension spring with respect to the first cylindrical wall portion smoothly.About this problem, according to technical scheme 3 described formations, in all sides first extension spring the girff side in conjunction with the end, with respect to the girff side of second extension spring in conjunction with the end, on the axis direction of hub portion, be configured with staggering, therefore avoid of the interference of this second extension spring, remove the winding of this relative first cylindrical wall portion of second extension spring, can make switch hood rotate to the closed position smoothly thus the second cylindrical wall portion.
Description of drawings
Fig. 1 represents the figure of embodiments of the present invention, is the front view of cutting machine.This figure represents that switch hood is positioned at the state of complete closed position.
Fig. 2 be Fig. 1 (2) to view, be the upward view of cutting machine.Omitted the diagram of base among this figure.In addition, by representing switch hood by the section of axis J.
Fig. 3 represents the front view of the cutting machine that embodiments of the present invention relate to.This figure represents the state of switch hood complete opening.
Fig. 4 be Fig. 3 (4) to view, be the upward view of cutting machine.Omitted the diagram of base among this figure.In addition, by the first cylindrical wall portion that represents switch hood by the longitudinal profile of axis J.
Symbol description is as follows:
W... cutting member; 1... cutting machine; 2... base; 6... handle portion; 10... cutter body; 11... cutting knife; 12... CD-ROM drive motor; 13... girff; 13a... hook portion; 14... set bolt; 15... main shaft; 16... bearing; J... axis; 17... bearing housing; 17a... minor diameter part; 17b... large-diameter portion; 17c... guide surface; 19... block; 20... switch hood; 20a... the first cylindrical wall portion; 20b... hook portion; 20c, 20d... hook hole; 21... first extension spring; 21a... hook leading section; 21b... hook rearward end; 22... second extension spring; 22a... hook leading section; 22b... hook rearward end; 23... the second cylindrical wall portion.
The specific embodiment
Below, based on Fig. 1~Fig. 4 an embodiment of the invention are described.Fig. 1 and Fig. 2 represent the cutting machine 1 that present embodiment relates to.In the present embodiment, as cutting machine, the cutting machine of portable (hand-held) that illustration user cuts cutting member W by hand-held moving.This cutting machine 1 possesses: be positioned over the base 2 on the cutting member W; Be bearing in the cutter body 10 of the upper surface side of this base 2.
Support 3 and the support 4 of cutting direct of travel rear side (in Fig. 1 left side) upper surface side that be supported in this base 2 of cutter body 10 by the cutting direct of travel front side (right side among Fig. 1) of base 2.In this example, cutter body 10 can tilt to the left and right and is supported movably with respect to the cutting direct of travel, promptly has and can carry out so-called function of cutting sth. askew, the oblique fulcrum 5 that fascinates of side bearing portion 3 promptly has the function that can adjust penetraction depth for the center is supported with fascinating up and down before going back in addition.With regard to these each function, because of with identical in the past, the Therefore, omited describes in detail.
Cutter body 10 possesses the cutting knife 11 that is ordered about the circle of rotation by CD-ROM drive motor 12.The bottom of this cutting knife 11 is outstanding to the lower face side of base 2, and this ledge becomes the part that is cut among the cutting member W.The scope of the upside half cycle of this cutting knife 11 is covered by girff 13.On the other hand, the scope of the downside half cycle of cutting knife 11 is covered by switch hood 20.
As shown in Figure 2, the rear side (downside among Fig. 2) at girff 13 is equipped with CD-ROM drive motor 12.In addition, the rear side at girff 13 also is provided with the handle portion 6 that the user grips.This handle portion 6 has annular shape, and all within it sides also are provided with the switch lever 7 of the trigger-type that the user can operate with finger.When this switch lever 7 being carried out the drawing operation, CD-ROM drive motor 12 starts and orders about cutting knife 11 and rotate.
The output of CD-ROM drive motor 12 is passed to via train of reduction gears on the main shaft 15.This main shaft 15 is projected in the girff 13, and at its outstanding leading section cutting knife 11 is installed.Main shaft 15 be can be rotated to support in the girff 13 by bearing 16.This bearing 16 is accommodated in the bearing housing 17.This bearing housing 17 is fixed on the girff 13 by two set bolts 14,14.
This bearing housing 17 forms stair-stepping two sections, i.e. the large-diameter portion 17b of the minor diameter part 17a of the upside among Fig. 2 and downside.By the minor diameter part 17a of this bearing housing 17, switch hood 20 is coaxial with it and rotatably be supported.Hence one can see that, and minor diameter part 17a is equivalent to be documented in the hub portion in claims.
On the fixed part 17d, the 17d that are arranged on sidepiece circumferencial direction two position of halving of large-diameter portion 17b, insert and be connected with said fixing bolt 14,14.Two fixed part 17d, 17d are configured to the outstanding state of radiation direction.As shown in the figure, two fixed part 17d, 17d are configured in relative base 2 parallel axis and on the axis that counterclockwise tilts, thus, the fixed part 17d in left side is to the direction displacement away from first extension spring 21 among Fig. 1.Like this, prevented that this first extension spring 21 from being blocked by large-diameter portion 17b, and can be carried out the winding action of this first cylindrical wall 20a of portion relatively smoothly.
On switch hood 20, be provided with first 20a of cylindrical wall portion of drum.Minor diameter part 17a with bearing housing 17 can insert with the relative rotation along interior all sides of this first cylindrical wall 20a of portion, and this switch hood 20 is supported around the axis J of main shaft 15 with rotating freely.First 20a of cylindrical wall portion is configured in the upper surface of large-diameter portion 17b and between the back-up ring 18 that the front end of minor diameter part 17a is installed, to determine the position of axis J direction.
Fig. 1 represents the roughly closed condition of the almost whole periphery of half cycle scope (to the outstanding scope of the lower face side of base 2) of downside that switch hood 20 covers cutting knifes 11.Inner surface at girff 13 is provided with block 19.End and this block 19 butts by making switch hood 20 are restricted the rotation end position of the closing direction of this switch hood 20.Become the complete closed position of this switch hood 20 by the rotation end position of these block 19 restrictions.As shown in Figure 1, in the moment that cutting member W is begun to cut, the incision end of the front end of switch hood 20 and cutting member W connects, and keep under the state of this butt, this cutting machine 1 is moved to the cutting direct of travel, switch hood 20 is relatively opened, and cutting knife 11 is cut among the cutting member W.
As shown in Figure 3, switch hood 20 is by complete opening, and the entire portion of scope that becomes the lower face side of the base 2 that is projected into cutting knife 11 is cut into the state among the cutting member W.
In addition, the opening direction leading section (left part among Fig. 1) at this switch hood 20 also is provided with the handle portion 25 that manual operation is used.The user grips this handle portion 25, can come this switch hood 20 of switch forcibly by manual operation.
Switch hood 20 by two extension springs 21,22 by to the closing direction application of force.Therefore, the opening of switch hood 20 need overcome above-mentioned two extension springs 21,22 and carries out.The cutting machine 1 that present embodiment relates to is had bigger feature at switch hood 20 by these two extension springs 21,22 to the closing direction application of force textural.
Two extension springs 21,22 are erected at the 20b of hook portion on first 20a of cylindrical wall portion that is located at switch hood 20, and are located between the 13a of hook portion on the girff 13.In the present embodiment, for these two extension springs 21,22, use all springs of same size such as drift, the number of turn, coil diameter, line footpath and characterization factor of the spring.
The 20b of hook portion of switch hood 20 sides is configured to the axis J of relative main shaft 15 to radiating the state that direction is stretched out.In addition, the 13a of hook portion of girff 13 sides is to be set up with screw is fastening by the carriage that will be provided with in addition in the present embodiment.As shown in Figure 2, in the central authorities of girff 13, be provided with one section lower recess 13d.Above-mentioned bearing housing 17 is in the state that roughly is housed inside in this recess 13d.The above-mentioned hook 13a of portion utilizes the space of vacating in this recess 13d to be mounted.
Two extension springs 21,22 radially being disposed side by side along main shaft 15.In the hook leading section 21a of first extension spring 21 of all sides be hooked among the hook hole 20c of the 20b of hook portion of switch hood 20 sides.The hook rearward end 21b of first extension spring 21 is hooked among the hook hole 13b of the 13a of hook portion of girff 13 sides.In addition, the hook leading section 22a of second extension spring 22 of outer circumferential side is hooked among the hook hole 20d of the 20b of hook portion of switch hood 20 sides.The hook rearward end 22b of second extension spring 22 is hooked among the hook hole 13c of the 13a of hook portion of girff 13 sides. Hook leading section 21a, 22a follow the switch motion of switch hood 20 and mobile mobile side (switch hood 20 sides), and hook rearward end 21b, 22b then become fixation side (girff 13 sides).
As shown in Figure 1, on the hook hole 20c of switch hood 20 sides, 20d the is positioned at same one side vertical with the axis J of main shaft 15.Therefore, hook leading section 21a, the 22a of first extension spring 21 and second extension spring 22 are set on the position of equal height on the axis J of main shaft 15 direction.
On the other hand, as shown in Figure 2, hook hole 13b, the 13c of girff 13 sides staggers on the axis J of main shaft 15 direction.Therefore, hook rearward end 21b, the 22b of first extension spring 21 and second extension spring 22 are set on the position of staggering up and down on the axis J of main shaft 15 direction.As shown in the figure, the hook rearward end 21b of first extension spring 21 of interior all sides is hooked on the lower position (away from the position of cutting knife 11) that becomes downside among Fig. 2.Thus, the hook rearward end 21b of this first extension spring 21 be hooked on from the second cylindrical wall portion 23 of following explanation away from the position on, thereby avoid the interference of these first extension spring, 21 relative second cylindrical wall portions 23.
On the other hand, the hook rearward end 22b of second extension spring 22 of outer circumferential side is hooked on the higher position (near the position of cutting knife 11) that becomes upside among Fig. 2, promptly with the position of hook front 22a equal height on.Therefore, second extension spring 22 of outer circumferential side is erected on the face vertical with main shaft 15.
At the back side of switch hood 20 (below among Fig. 2), and between first extension spring 21 and second extension spring 22, be provided with the second cylindrical wall portion 23.This second cylindrical wall portion 23 is configured to first 20a of cylindrical wall portion concentric.As shown in Figure 1, this second cylindrical wall portion 23 be formed on from the 20b of hook portion neighbouring to counter clockwise direction cross over about 180 the degree scopes in.In addition, in this second cylindrical wall portion 23, the height dimension at the back side of range switch guard shield 20 is set as the height dimension that roughly equates with the coil diameter of second extension spring 22.
From the comparison of Fig. 1 and Fig. 3 as can be known, when switch hood 20 overcomes first extension spring 21 and second extension spring 11 and when opening, hook leading section 21a, the 22a side of two extension springs 21,22 move to clockwise direction in Fig. 1, and make two extension springs 21,22 elongate.On the other hand, the hook rearward end 22b of the hook rearward end 21b of first extension spring 21 and second extension spring 22 is hooked on respectively on the 13a of hook portion of girff 13 sides, even therefore switch hood 20 is open, also can not be moved.
Therefore, as shown in Figure 3, when switch hood 20 was opened, first extension spring 21 of interior all sides twined along the outer peripheral face of first 20a of cylindrical wall portion.On the other hand, second extension spring 22 of outer circumferential side twines to the outer circumferential side of the second cylindrical wall portion 23.
As mentioned above, the second cylindrical wall portion 23 is set as the coil diameter height dimension about equally with second extension spring 22, this is for this second extension spring 22 is wrapped on the outer peripheral face of this second cylindrical wall portion 23 reliably, and can not stagger to the inside and interfere with first extension spring 21 from this second cylindrical wall portion 23.
In addition, as mentioned above, first extension spring 21 of interior all sides is hooked on its hook rearward end 21b side on position (away from the position of cutting knife 11) lower on the axis J of main shaft 15 direction.Therefore, the hook portion 13a side of first extension spring 21 from the 20b of hook portion of switch hood 20 sides to girff 13 sides set up by (direction that tilts with respect to the axis J of main shaft 15) roughly obliquely.
Therefore, along with the rotation of switch hood 20 to opening direction, and the hook leading section 21a of two extension springs 21,22,22a side in Fig. 1 in the process that clockwise direction moves, first extension spring 21 of interior all sides, because of its rear portion side is caught by large-diameter portion 17b gradually, and be embedded between first 20a of cylindrical wall portion and the second cylindrical wall portion 23 on one side, Yi Bian be wrapped on this first cylindrical wall 20a of portion, be stretched thus.
In addition, the upper surface of large-diameter portion 17b, position that promptly intersects with first extension spring 21 and the certain limit before and after the circumferencial direction thereof become this first extension spring 21 towards the oblique guide surface 17c of hook rearward end 21b inclination.In Fig. 1 and Fig. 3, represent this guide surface 17c with the scope that has applied grid pattern.Utilize this guide surface 17c, in preventing first extension spring 21 of all sides along with the spinning movement (switch motion) of switch hood 20 relatively the bight of this large-diameter portion 17b block, and it is moved at the upper surface of large-diameter portion 17b smoothly, then come off smoothly on the contrary from this upper surface.
On the other hand, second extension spring 22 of outer circumferential side is by being stretched being stretched on the face vertical with this main shaft 15 and being wound onto on the outer peripheral face of the second cylindrical wall portion 23, and can be subjected to displacement on the axis J of main shaft 15 direction.Like this, switch hood 20 overcomes the total force of first and second extension spring 21,22 and opens.As shown in Figure 3, when switch hood 20 is opened into full open position, first extension spring, 21 relative first 20a of cylindrical wall portion of all sides roughly are being wound in 180 scopes of spending in forming, and second extension spring, the 22 relative second cylindrical wall portions of outer circumferential side state of being wound in the scopes of 180 degree roughly, forming thus has been stretched respectively is equivalent to the state of the length of the 20a of cylindrical wall portion, 23 roughly half cycle.
Like this, 20 of switch hoods that are opened into full open position are in by the total force of first and second extension spring 21,22 to closing direction by the state of the application of force, thereby form the state of using than only used the bigger active force (active force of about twice) of extension spring to the closing direction application of force in the past.Therefore, switch hood 20 can be turned to complete closed position reliably, even make this cutting machine 1 be under the situation of posture upwards and the state of the effect that this switch hood 20 is conducted oneself with dignity under, still can reliably this switch hood 20 be remained on its complete closed position.
According to the cutting machine 1 of the present embodiment that as above constitutes,, be to the closing direction application of force by two extension spring 21,22 to the switch hood 20 that covers to the outstanding scope of the lower face side of base 2 of cutting knife 11.Therefore, with only compared to constituting of the closing direction application of force by one extension spring in the past, can be held on the closed position with stronger trying hard to keep, even this cutting machine 1 is being remained on upwards posture like this, the deadweight of switch hood 20 is attached under the state of opening direction, still can reliably this switch hood 20 be maintained in its closed position.
And, cutting machine 1 according to present embodiment, because first and second extension spring 21,22 is disposed on the direction vertical with the axis J direction of main shaft 15 side by side, so as the space of the axis J direction of holding these two extension springs 21,22, as long as can guarantee that 1 spatial accommodation is just enough.That is, with regard to the size L of the axis J direction of first 20a of cylindrical wall portion of switch hood 20, need not to guarantee required size, as long as it is just enough to be equivalent to 1 size L in order to twine two extension spring 21,22.Hence one can see that, need not to increase the size of the axis J direction of first 20a of cylindrical wall portion, as on axis J direction side by side the situation of two extension springs of configuration, can strengthen switch hood 20 on the closed position confining force and need not to increase the width dimensions of cutter body 10.
In addition, according to illustrative embodiment, upper surface at large-diameter portion 17b is provided with guide surface 17c, by this guide surface 17c, first extension spring 21 of all sides is limited to this large-diameter portion 17b in can preventing, can make first extension spring 21 carry out expanding-contracting action smoothly like this, can realize the suitable sliding switch motion of switch hood 20 thus.
Embodiment for the above-described can append various changes.For example, though illustration be used for the 13a of hook portion of hook rearward end 21b, the 22b of first and second extension spring 21,22 of hook, be formation, but also can be for example all-in-one-piece to be set to constitute with the side wall portion of recess 13d with the carriage of screw fastening other setting.
In addition, though illustration the second cylindrical wall portion 23 is set to formation with the coil diameter height dimension about equally of second extension spring 22, the height dimension of this second cylindrical wall portion 23 so long as the over half at least of the coil diameter of second extension spring 22 get final product.
And, though illustration the formation of the second cylindrical wall portion 23 is set at the back side of switch hood 20, also can be the formation that this second cylindrical wall portion is arranged on girff 13 sides.Under this situation, the large-diameter portion 17b that can be omitted in bearing housing 17 goes up the guide surface 17c that is provided with.
In addition, though illustration first extension spring 21 and second extension spring 22 adopt the formation of the extension spring of same sizes, also can adopt the formation of the extension spring of different size mutually such as characterization factor of the spring.
And the spring energized structure of illustrative switch hood except that the saw cutter, also can be widely used in cutter or grinding stone in the cutting machine as cutting knife.

Claims (3)

1. cutting machine, possesses the cutter body on the upper surface that is positioned over the base on the cutting member and is bearing in this base, the upside that this cutter body possesses circular cutting knife, cover this cutting knife is the girff of the scope of half cycle and the downside that covers this cutting knife switch hood of the scope of half cycle roughly roughly, this cutting machine is characterised in that, constitutes:
Above-mentioned switch hood rotatably is supported in above-mentioned girff above-mentioned cutting knife is rotated on the hub portion of supporting, and between this switch hood and above-mentioned girff, possess a plurality of extension springs of this switch hood, the footpath of these a plurality of extension springs in above-mentioned hub portion upwards disposed side by side to the closing direction application of force.
2. cutting machine according to claim 1, it is characterized in that, above-mentioned switch hood possesses the first cylindrical wall portion that the inside all sides of the hub portion of above-mentioned girff are inserted, and the outer circumferential side along this first cylindrical wall portion possesses the second cylindrical wall portion, and constitute: along with this switch hood rotates to opening direction, first extension spring of all sides is wrapped in the above-mentioned first cylindrical wall portion in making, and makes second extension spring of outer circumferential side be wrapped in the above-mentioned second cylindrical wall portion.
3. cutting machine according to claim 2, it is characterized in that, the hook set positions of above-mentioned first extension spring at above-mentioned girff existed: with respect to above-mentioned second extension spring at for the hook position of above-mentioned girff, on the axis direction of the above-mentioned second cylindrical wall portion and on the position of staggering on the direction away from this second cylindrical wall portion.
CN2007101376483A 2006-08-03 2007-07-31 Switch hood for cutter Active CN101116917B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2006211973A JP4994740B2 (en) 2006-08-03 2006-08-03 Opening and closing cover of cutting blade in cutting machine
JP2006-211973 2006-08-03
JP2006211973 2006-08-03

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CN101116917A true CN101116917A (en) 2008-02-06
CN101116917B CN101116917B (en) 2010-09-08

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CN106141306B (en) * 2016-08-29 2018-01-30 成都标建铝业有限公司 A kind of aluminum section saw cutting machine
CN106216767B (en) * 2016-08-29 2018-01-30 成都标建铝业有限公司 Cutter device for sliding window shaped-material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3505696B2 (en) * 1995-06-30 2004-03-08 新ダイワ工業株式会社 Rotary blade protection cover
US5794351A (en) * 1996-05-31 1998-08-18 Black & Decker, Inc. Window assembly and lower saw guard for circular saw
DE19831166A1 (en) * 1998-07-11 2000-01-13 Bosch Gmbh Robert Articulated guard cover for hand-held circular saw machine
JP2000037705A (en) * 1998-07-24 2000-02-08 Makita Corp Structure for preventing cuttings from scattering in portable circular saw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470457A (en) * 2009-07-10 2012-05-23 株式会社牧田 Structure for preventing separation of fixing device for guard member in cutting machine
CN102978662A (en) * 2012-12-12 2013-03-20 青铜峡铝业股份有限公司 Protective device for proximity switch of movable cutting edge of automatic residue anode pressure-disengaging machine
CN110509443A (en) * 2019-03-07 2019-11-29 杭州曼京科技有限公司 A kind of ground fluting cutter device of interior decoration decoration

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