CN102470461A - Resettable advancement mechanism - Google Patents
Resettable advancement mechanism Download PDFInfo
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- CN102470461A CN102470461A CN200980160383.6A CN200980160383A CN102470461A CN 102470461 A CN102470461 A CN 102470461A CN 200980160383 A CN200980160383 A CN 200980160383A CN 102470461 A CN102470461 A CN 102470461A
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- Prior art keywords
- post
- ratchet
- rotation control
- chain saw
- control mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
- B23D63/08—Sharpening the cutting edges of saw teeth
- B23D63/16—Sharpening the cutting edges of saw teeth of chain saws
- B23D63/166—Sharpening the cutting edges of saw teeth of chain saws without removal of the saw chain from the guide bar
- B23D63/168—Sharpening the cutting edges of saw teeth of chain saws without removal of the saw chain from the guide bar the saw chain moving around the guide bar
Abstract
An advancement mechanism (530) includes a post (600), an engagement mechanism housing (610) separated into an upper housing (614) section and a lower housing section (616), a first rotational control mechanism (620), a first bias member (630), and a second bias member (640) biasing the post (600) in an unactuated position. The first rotational control mechanism (620) includes a ratchet (622) that is coupled to the post (600) and has ratchet teeth (623). The first rotational control mechanism (620) also has a pawl (624) having pawl teeth (625) configured for mating engagement with the ratchet teeth (623). The first rotational control mechanism (620) and the lower housing section (616) are configured such that the ratchet teeth (623) and the pawl teeth (625) are off-set from each other when the post (600) is in the unactuated position and such that the ratchet teeth (623) and pawl teeth (625) are aligned thereby advancing the ratchet teeth (623) when the post (600) is in an actuated position.
Description
Technical field
The present invention relates to be used for the field of the actuating mechanism of hand-operated tools, more particularly, relate to the propulsive mechanism that to reset.
Background technology
But the instrument with cutter unit needs cutting element to change or sharpening, to keep its efficient and/or to reach the ability of its intended purposes.For example, cutting tool (for example chain saw) has the cutting chain that is used to cut timber or other materials.As time goes on, cutting chain may rust.The acutance that keeps cutting chain is for keeping the cutting efficiency particular importance, and it also can improve the safety in utilization of chain saw.
The large scale industry chain grinding machine can be used for the cutting chain of chain saw is carried out sharpening, but it uses comparatively heaviness, consuming time.In general, cutting chain must take off from chain saw, and is taken care of by the operating personnel of large scale industry chain grinding machine, accomplishes sharpening up to chain, and subsequent use.
Other chain grinding machines can make cutting chain be retained on the chain saw during the sharpening.This instrument generally comprises anchor clamps, and these anchor clamps are clipped on the chain saw and separately each sawtooth of each cutting chain are carried out sharpening with guiding hand file (hand file).Though this instrument is portable, its use is comparatively consuming time, because operating personnel must carry out manual filing to each tooth separately.
Have under the situation of not using additional means the grinding stone that cutting chain is carried out sharpening though some chain saw is provided with sharpening mechanism and sharpening mechanism, the startup of these sharpening mechanisms depends on operating personnel and whether can control grinding stone and make it join desired depth to.Therefore, the mode that engages with cutting chain of grinding stone may cause damage to cutting chain or chain saw.Therefore, need a kind of improved propulsive mechanism.
Summary of the invention
In one embodiment, propulsive mechanism comprises the post that can be positioned at the primary importance and the second place (for example starting and non-actuation position) at least.Said propulsive mechanism also comprises the engaging mechanism shell with upper casing section and lower part.In addition, said propulsive mechanism can comprise first rotation control mechanism of the ratchet and pawl that propelling with coupled columns is controlled, and can comprise first bias piece, and first bias piece is biased into the ratchet of first rotation control mechanism on the ratchet.Said ratchet can have a plurality of pawl teeth of the upper surface that is positioned at ratchet.Said ratchet also can have a plurality of hook tooths of the upper surface that is positioned at ratchet.Can comprise second bias piece, be used for post is biased into primary importance (for example, non-actuation position).Said first rotation control mechanism and lower part are configured to, and make said hook tooth and pawl teeth when post is in non-actuation position, depart from each other.When said post moved to the second place (for example, enable position), said hook tooth and pawl teeth were aligned with each other, thereby advanced hook tooth.
The extension that is arranged so that post or the propelling of hook tooth and pawl teeth are controlled.When said post moves back and forth in splice enclosure and when non-actuation position moved to enable position, the relief of said ratchet and guide rail broke away from, and slide into outside the pawl slot of the lower casing that is positioned at splice enclosure, thereby make the complete engagement pawl tooth of hook tooth.Because hook tooth engages with pawl teeth, the relief of ratchet advances to next guide rail and next pawl slot.Because post retracts non-actuation position, so being forced with guide rail, aims at the relief of said ratchet, relief is advanced and slip into next pawl slot, thereby pawl teeth and hook tooth are departed from mutually.Therefore, when post starts at every turn, the said ratchet pawl slot that advances, said post extends a predetermined forward travel distance.
In another embodiment, said propulsive mechanism also can comprise second rotation control mechanism of the propulsive mechanism that is used to reset.Second bias piece can be positioned to second rotation control mechanism to engage with post.Said second bias piece can at first end and second rotation control mechanism couples and couple at second end and engaging mechanism shell.Said second rotation control mechanism can be formed at folk prescription to rotation, and this has prevented that post from advancing under uncontrolled situation.Said second rotation control mechanism can make operating personnel with the extension of post or the opposite direction of advancing post rotated.Because operating personnel in the opposite direction rotate post, said post shrinks through the engaging mechanism shell.Because said post shrinks through the engaging mechanism shell, so advancing of post has been reversed, propulsive mechanism can turn back to its initial position.
Propulsive mechanism as herein described can increase the forward travel distance of post automatically, thereby reduces the contingent excessive extension of grinding stone that is used for cutting chain is carried out sharpening.Said propulsive mechanism also can reset, therefore replaceable grinding stone and/or sharpening mechanism.
Description of drawings
Through following detailed description, in conjunction with accompanying drawing, can be more readily understood aforementioned characteristic of the present invention, in the accompanying drawings:
The example cutaway view of an embodiment of the propulsive mechanism that Fig. 1 disposes for instruction according to the present invention;
Fig. 2 is the example exploded view of propulsive mechanism shown in Figure 1;
Fig. 3 is the example cutaway view according to the engaging mechanism shell of an embodiment of propulsive mechanism;
Fig. 4 A is the example top plan view according to the ratchet of an embodiment of propulsive mechanism;
Fig. 4 B is the example side view according to the ratchet of an embodiment of propulsive mechanism shown in Fig. 4 A;
Fig. 5 A is the example top plan view according to the ratchet of another embodiment of propulsive mechanism;
Fig. 5 B is the example side view according to the ratchet of this embodiment of propulsive mechanism shown in Fig. 5 A;
Fig. 6 A is the example top plan view according to second rotation control mechanism of another embodiment of propulsive mechanism;
Fig. 6 B is the example side view according to second rotation control mechanism of this embodiment of propulsive mechanism shown in Fig. 6 A;
Fig. 7 is the exemplary perspective view that has sharpening mechanism and removed the propulsive mechanism of assembling in the chain saw (shown in cutaway view) of cutting chain;
Fig. 8 is the example side view of the propulsive mechanism of assembling in the chain saw (shown in cutaway view) with sharpening mechanism;
Fig. 9 is the exemplary perspective view of Fig. 7 and sharpening mechanism shown in Figure 8;
Figure 10 is the example cutaway view of the sharpening mechanism that is in punctured position shown in Figure 9;
Figure 11 is the example cutaway view of the sharpening mechanism that is in extended position shown in Figure 9; And
Figure 12 is the exemplary perspective view of Fig. 7 and transmission arm shown in Figure 8.
The specific embodiment
Hereinafter will be explained more fully the resetted propulsive mechanism of instruction configuration according to the present invention with reference to accompanying drawing, show the exemplary embodiments of system in the accompanying drawing.But this system can multiple multi-form enforcement, should not be construed as to be limited to embodiment as herein described.On the contrary, provide the purpose of these embodiment to be to make and of the present inventionly disclose fully and completely, can scope of the present invention intactly be conveyed to those skilled in the art.In accompanying drawing and explanation, similar reference number is represented similar units.
Because cutter unit rust or otherwise be worn, As time goes on and to a certain extent the power tool that is provided with cutting element may lower efficiency and/or validity.For example, the cutting chain of chain saw may owing in use with dust or other abrasive materials all of a sudden of short duration contact the and rust fast.Operating personnel need sharpening mechanism so that can in the working region, carry out sharpening apace and/or easily to cutting chain.Utilize this sharpening mechanism, operating personnel can proceed cutting, have reduced to postpone and/or inconvenience.As described herein, a kind of propulsive mechanism that resets is disclosed, it can carry out sharpening to the cutter unit on the power tool easily.Embodiment as herein described focuses on the enforcement to the resetted propulsive mechanism with the sharpening mechanism that is used for chain saw and cutting chain thereof, but other power tools with cutting element also belong to scope of the present invention.Example with other power tools of cutting element comprises edging mill, reciprocating saw etc.
See figures.1.and.2, the said propulsive mechanism 530 that resets can be used as displacement (indexing) mechanism that can reset.The said propulsive mechanism 530 that resets can comprise: post 600 can be positioned at the primary importance and the second place; Engaging mechanism shell 610, post 600 is through the reciprocal far-end of this engaging mechanism shell; First rotation control mechanism 620 has by first bias piece 630 and is biased into the ratchet 624 on the ratchet 622; And second bias piece 640, post 600 is biased into primary importance.Said first rotation control mechanism 620 makes post 600 advance a scheduled volume automatically.Said first bias piece 630 can be helical spring, disc spring, compression spring, extension spring and/or can ratchet 622 be biased into other similar bias pieces that maybe can post 600 be biased into primary importance on the ratchet 624 with second bias piece 640.
The primary importance of post 600 and the second place can be respectively non-actuation position and enable position.At non-actuation position, second bias piece 640 does not compress.In enable position, second bias piece 640 is compressed.In certain embodiments, the said propulsive mechanism 530 that resets can have the knob 700 that couples with post 600.Said knob 700 can be configured to start the propulsive mechanism 530 that can reset, and post 600 is moved to enable position and non-actuation position.In certain embodiments, said knob 700 can rotatably couple with post 600, makes operating personnel can rotate, reverse or rotate knob 700.Hereinafter will be elaborated to each parts of the said propulsive mechanism 530 that resets.
As depicted in figs. 1 and 2, said post 600 can be elongate articles.Said post 600 can have and is used for the threaded portion 602 that engages ordinatedly with first rotation control mechanism 620.Said post 600 can be arranged in the engaging mechanism shell 610, makes it can be reciprocal within it.Said engaging mechanism shell 610 can be cylindrical shape, to hold post 600.Said engaging mechanism shell 610 can have the part wall (partial wall) 612 that engaging mechanism shell 610 is divided into upper casing section 614 and lower part 616, as shown in Figures 2 and 3.Said lower part 616 has a plurality of guide rails 650, and it is configured to engage with first rotation control mechanism 620.
Said first rotation control mechanism 620 has ratchet 622 and ratchet 624, and is as shown in Figure 2.Said ratchet 622 has a plurality of hook tooths 623 that are positioned at its upper surface, shown in Fig. 4 B.Said ratchet 624 has a plurality of pawl teeth 625 that are positioned at its upper surface, shown in Fig. 5 B.The shape of said pawl teeth 625 and configuration can engage it with hook tooth 623.Said ratchet 624 can couple with post 600.For example, if post 600 has threaded portion 602, then said ratchet 624 can have and is used for the tapped through hole that engages with the threaded portion 602 of post 600.
Shown in Fig. 2, Fig. 4 A and Fig. 4 B, said ratchet 622 has a plurality of reliefs 652 on its outer rim, is used for when post 600 moves back and forth in engaging mechanism shell 610, engaging with the guide rail 650 of lower part 616.Said lower part 616 can have also that the inner edge along lower part 616 has a plurality of pawl slots 670 between corresponding guide rail 650, as shown in Figures 2 and 3.Said relief 652 also moves back and forth in pawl slot 670 when ratchet 624 advances at ratchet 622.As depicted in figs. 1 and 2, when the relief on the ratchet 622 652 engaged with guide rail 650, said hook tooth 623 departed from mutually with pawl teeth 625.Subsequently, when said post 600 starts so that when engaging mechanism shell 610 in, moving back and forth, the relief 652 of ratchet 622 and guide rail 650 disengagings make hook tooth 623 aim at pawl teeth 625.Said hook tooth 623 makes that with the angle and the shape of pawl teeth 625 punctual when 625 pairs of hook tooth 623 and pawl teeth, ratchet 622 rotations also advance to next guide rail 650, thereby relief 652 is slipped in the next pawl slot 670.When said post 600 moves back and forth in engaging mechanism shell 610 when turning back to non-actuation position; Said first bias piece 630 and second bias piece 640 cooperate with positioning ratchet wheel 622; Make it engage with guide rail 650, thus with hook tooth 623 turn back to pawl teeth 625 depart from aim at.Therefore; Said first rotation control mechanism 620 is configured to lower part 616; Make said hook tooth 623 depart from mutually when post 600 is in non-actuation position with pawl teeth 625, said hook tooth 623 is aligned with each other when post 600 is in enable position with pawl teeth 625, thereby advances hook tooth 623.
In an alternate embodiment, said ratchet 624 can have a plurality of ratchet ribs 672 along its outer rim, is configured to engage ordinatedly with the pawl slot 670 of lower part 616.Fig. 5 A has shown ratchet rib 672.When said post 600 starts so that when engaging mechanism shell 610 in, moving back and forth, said ratchet rib 672 engages with pawl slot 650 maintenances, thereby prevents that ratchet 624 from rotating between the starting period.
In another embodiment, said upper casing section 614 can have a plurality of post grooves 680 of arranging along the inner edge of upper casing section 614, and is as shown in Figure 2.Said post 600 can have a plurality of rib of columns 682 of arranging along the outer rim of post.The said rib of column 682 can be configured to when post 600 moves back and forth in engaging mechanism shell 610, engage with post groove 680.The said rib of column 682 is in that enable position and first rotation control mechanism 620 engage with guide rail 650 and keeps engaging with post groove 680 when breaking away from when post 600.Said post 600 does not rotate between 530 starting periods at propulsive mechanism, because the rib of column 682 keeps engaging with post groove 680 when post 600 starts.Therefore, the said propulsive mechanism 530 of resetting advances with controlled way, makes the forward travel distance of post 600 be no more than operating personnel's desired distance, and post 600 can not advance because of the accidental activation of knob 700.Said post groove 680 can be taper, so that engage with the rib of column 682, the controlled motion of the propulsive mechanism 530 of further having guaranteed to reset prevents that post 600 from rotating between the starting period.The inlet of said post groove 680 also can be taper, thereby is convenient to the rib of column 682 is aimed at post groove 680.
In another alternate embodiment, the said propulsive mechanism 530 that resets can comprise resetting-mechanism.Said resetting-mechanism 660 can be configured for second rotation control mechanism of folk prescription to rotation.As depicted in figs. 1 and 2, said second rotation control mechanism 660 is configured to engage ordinatedly with post 600, and is coupled with post 600 by second bias piece 640.In other embodiments, said second rotation control mechanism 660 can be integrated with post 600, or combines with it through securing member or through welding or adhesive.Second bias piece 640 at least one example does not couple the post and second rotation control mechanism, and the power that only applies is to shrink said post.Said second bias piece 640 couples at first end and second rotation control mechanism 660, couples at second end and engaging mechanism shell 610.Said second rotation control mechanism 660 is configured to engage ordinatedly with upper casing 614 interior a plurality of Spin Control grooves 670.In the exemplary embodiments shown in Fig. 6 A and the 6B, said second rotation control mechanism 660 has a plurality of fins 662, and the shape of fin 662 makes second rotation control mechanism 660 and the post 600 only can be at folk prescription to rotation.Said second rotation control mechanism 660 can make operating personnel at a direction (for example rightabout) column spinner 600.For example, operating personnel with the opposite direction column spinner 600 of direction of advance that advances post 600.When operating personnel at this during opposite or inverse direction column spinner 600, said ratchet 622 is rotation in the opposite direction also, through engaging mechanism shell 610 post 600 is shunk.Operating personnel can reset to its initial position with the propulsive mechanism 530 that can reset, and perhaps, if propulsive mechanism 530 advances too far, operating personnel's second rotation control mechanism 660 capable of using makes the propulsive mechanism 530 that can reset reverse.Can the reset initial home position of propulsive mechanism 530 is that the propulsive mechanism 530 that can reset is carrying out any startup with residing position before advancing post 600.Though Fig. 1, Fig. 2, Fig. 6 A and Fig. 6 B have shown the resetting-mechanism 660 as single integral unit; But those of ordinary skill in the art is understood that; Said resetting-mechanism 660 can be a plurality of members that tighten together, and for example, it can be fixed together through machine screw etc.In other embodiments, said a plurality of members can weld together, thereby form single unified structure.
Now, the operation that sees figures.1.and.2 to the propulsive mechanism 530 that can reset is described.At non-actuation position, said rib 682 does not engage with the post groove 680 of upper casing section 614, and the relief 652 of ratchet 622 engages with the guide rail 650 of lower part 616.Because relief 652 engages with guide rail 650, said hook tooth 623 departs from pawl teeth 625.
In order to start post 600 and post 600 to be moved to enable position from non-actuation position, coupled columns 600 applies power through knob 700 is applied power.The power that knob 700 is applied shifts to post 600, thereby post 600 is moved to enable position.When said post 600 moved to enable position, post 600 moved back and forth in engaging mechanism shell 610, and compressed second bias piece 640.When said post 600 moved to enable position, the said rib of column 682 engaged with the post groove 680 of upper casing section 614.When the said rib of column 682 was positioned at post groove 680, post 600 can't rotate.Because post 600 couples with ratchet 622, so said ratchet 622 moves when post 600 moves to enable position.When said post 600 moved to enable position and in engaging mechanism shell 610, move back and forth, the relief 652 of ratchet 622 broke away from the guide rail of lower part 616 650.When relief 652 broke away from guide rail 650, hook tooth 623 became and aims at pawl teeth 625, and the shape of pawl teeth 625 and angle make ratchet 622 advance to next guide rail 650.Therefore, pawl teeth 625 and hook tooth 623 advances a predetermined advance distance to brigadier's propulsive mechanism 530 that can reset.Said first bias piece 630 is biased into ratchet 622 with ratchet 624, is convenient to hook tooth 623 is aimed at pawl teeth 625, to advance the propulsive mechanism 530 that can reset.Therefore, when said ratchet 622 is advanced to next guide rail 650, the through hole of said post 600 through ratchet 622 advance an increment or predetermined forward travel distance.For example, if the propulsive mechanism 530 that can reset comprises post with threaded portion 602 and screw thread ratchet 622 and when ratchet 622 advances to next guide rail 650, advance in the threaded portion 602 of post 600, and further become and engage with the screw thread of ratchet 622.Therefore, along with ratchet 622 along the advancing of guide rail 650 at every turn, ratchet 622 twines around the threaded portion 602 of post 600, this has spurred post 622 makes it further through ratchet 622, and makes post 600 advance.
For post 600 is turned back to non-actuation position, the power that applies is removed from knob 700, make second bias piece 640 that post 600 bias voltages are returned non-actuation position.When second bias piece 640 was biased into non-actuation position with post 600, the relief 652 of ratchet 622 was pulled back in the guide rail 650, aimed at thereby hook tooth 623 is departed from pawl teeth 625 once more.Therefore, post 600 when non-actuation position moves to enable position and get back to non-actuation position, ratchet 622 guide rail 650 that advances, its predetermined advance distance with the propulsive mechanism 530 that can reset is corresponding.Said predetermined advance distance is based on post 600 and the pitch of ratchet 622 and the quantity of hook tooth 623.Therefore, said predetermined advance distance can be through increasing or reducing the pitch of post 600 and the corresponding pitch of ratchet 622 is adjusted.For example, the illustrated embodiment per inch has 12 screw threads.Said predetermined advance distance also can be adjusted through the quantity that increases or reduce hook tooth 623, pawl teeth 625 and guide rail 650.For example, illustrated embodiment has 12 hook tooths 623 and pawl teeth 625.When said first rotating mechanism 620 has advanced a guide rail 650, the far-end 532 of the post 600 predetermined forward travel distance that also advanced.The far-end 532 of post 600 can be configured to advance moving of another device (for example, the grinding stone of chain saw sharpening mechanism), maybe can be configured to start the hand-operated tools of other types.
In another exemplary embodiments, the said propulsive mechanism 530 that resets can have resetting-mechanism 660, so that the post 600 of propulsive mechanism 530 is retreated.As depicted in figs. 1 and 2, the said propulsive mechanism 530 that resets has resetting-mechanism 660, and resetting-mechanism 660 is the form of second rotation control mechanism 660.In order to make the propulsive mechanism 530 that can reset retreat or reset, said post 600 is positioned at non-actuation position, and under this position, the rib of column 682 breaks away from the post groove 680 of upper casing section 614.Subsequently, 600 rotations of said post make post 600 back out and/or get loose from ratchet 622.Therefore, post 600 before advance and can return.Because second rotation control mechanism 660 only is configured at folk prescription to rotation, said post 600 can't be along the manual propelling direction rotation of propulsive mechanism 530 that can reset, thus possibly slip up when having reduced action advances mechanism 530.Shown in Fig. 6 A, a plurality of fins 662 of second rotation control mechanism 660 only allow to rotate in the clockwise direction.The shape of said fin 662 can prevent, is rotated counterclockwise with 610 last times of engaging mechanism shell when it is configured in post 600, and is as shown in Figure 1.In other embodiments, said fin 662 can be configured to only allow to rotate in the counterclockwise direction, prevents to rotate in the clockwise direction.In an alternate embodiment, the upper casing section 614 of splice enclosure can have a plurality of wing tanks 664, and wing tank 664 engages with fin 662, make its at folk prescription to rotation.Fig. 3 has shown the exemplary embodiments of the engaging mechanism shell 610 with wing tank 664.When said post 600 during in the direction rotation that allows post 600 manually to advance, said fin 662 can engage with the wing tanks 664 in the upper casing section 614 of engaging mechanism shell 610.When said fin 662 engaged with wing tank 664, said second rotation control mechanism 660 can be only a direction rotation, and therefore, post 600 can be only a direction rotation.
In another exemplary embodiments, the said propulsive mechanism 530 that resets can have stop member 626, and is as shown in Figure 1.Said ratchet 622 can engage with stop member 626 when post 600 is in enable position.Said stop member 626 can limit the distance that post 600 and first rotation control mechanism 620 can move in splice enclosure 610.Said ratchet 622 can engage with stop member 626 when the propulsive mechanism 530 that can reset advances to maximum position.
Fig. 7 and Fig. 8 have shown the resetted propulsive mechanism 530 that is configured to advance the sharpening mechanism 100 that is used for automatic sharpening chain saw 500.The said propulsive mechanism 530 that resets is fixed on the engine housing of chain saw 500, make knob 700 can partly be in the engine housing outside, and in other embodiments, knob or button can be positioned at recess etc.In this embodiment, the far-end 532 of the propulsive mechanism 530 that can reset directly or indirectly starts the bar of sharpening mechanism 100, and then starts grinding stone.Propulsive mechanism 530 starts owing to can reset, post 600 advance a predetermined increment or forward travel distance.Therefore, also advance this predetermined increment or forward travel distance of the far-end 532 of the post 600 of propulsive mechanism 530.When said far-end 532 when propulsive mechanism 530 advances, the contact and apply a power on the bar of sharpening mechanism 100 directly or indirectly of said far-end 532.Subsequently, the power that applies on the bar starts grinding stone, and grinding stone is moved to exposure position, and under this position, it can contact with cutting chain and it is carried out sharpening.Therefore, said propulsive mechanism 530 guarantees that the distance that grinding stone advances from sharpening mechanism can not surpass the distance of operating personnel's expection, if surpass preset distance then can damage the cutting chain 550 of chain saw 500.If s-bone wear, above-mentioned initial home position can retreated and reset to the said propulsive mechanism 530 that resets, so that grinding stone is changed.Equally,, the said propulsive mechanism 530 that resets is retreated, the forward travel distance of grinding stone is returned if grinding stone has surpassed the distance of operating personnel's expection from the forward travel distance of sharpening mechanism.
Fig. 9 to Figure 11 has shown embodiment of the sharpening mechanism 100 that can be advanced by the above-mentioned propulsive mechanism 530 that resets.Said sharpening mechanism 100 can have body 110, and body 110 has the cavity 140 that is formed in wherein.Grinding stone 160 is positioned at the cavity 140 of body 110 at least in part.Bar 170 couples with grinding stone 160, and passes the cavity 140 of body.The far-end of said bar 170 extends to outside the edge of body 110.Sharpening mechanism bias piece 180 is biased into punctured position with grinding stone 160, and under this position, the major part of grinding stone 160 is positioned at cavity 140.Said punctured position is shown in figure 10.When the said propulsive mechanism 530 of resetting started the bar 170 of sharpening mechanisms 100, the far-end of post 532 directly or indirectly contacted and engages with the far-end of the bar 170 of sharpening mechanism.This makes grinding stone 160 move to exposure position (shown in figure 11) from punctured position (shown in figure 10).The propulsive mechanism 530 predetermined forward travel distance that advances owing to can reset is so grinding stone 160 exposes an identical predetermined forward travel distance.When the propulsive mechanism 530 that at every turn can reset started, grinding stone 160 incremental were advanced, and expose a predetermined forward travel distance.As shown in Figure 8, when grinding stone 160 advanced, it can contact with the cutting chain 550 of chain saw 500, so that cutting chain 550 is carried out sharpening.
When said grinding stone 160 advance and from the exposure of sharpening mechanism 100 distance surpass the distance of operating personnel's expection or surpass to cutting chain carry out sharpening required apart from the time; Can be through column spinner 600 in the opposite direction so that post 600 be unscrewed from ratchet 622; And the said propulsive mechanism 530 that resets is resetted, as stated.Through the propulsive mechanism 530 that can reset is retreated, the forward travel distance of post 600 returns.
In addition, when the bar 170 of sharpening mechanism 100 can't move on or when grinding stone 160 needs to change, can be through unscrewing post 600 returning the forward travel distance of post 60, and the said propulsive mechanism 530 that resets is resetted.In another embodiment, the dop of sharpening mechanism 100 (cartridge) can be changed under situation about propulsive mechanism 530 not being resetted.
In another exemplary embodiments, for example, embodiment shown in Figure 12 can use transmission arm 410 that sharpening mechanism 100 is coupled with the propulsive mechanism 530 that can reset.Fig. 7 and Fig. 8 have shown how transmission arm 410 can be configured to sharpening mechanism 100 is coupled with the propulsive mechanism 530 that can reset.Said transmission arm 410 can couple with the engine housing of chain saw pivotally, transfers to sharpening mechanism 100 with the actuating of the propulsive mechanism 530 that can reset.For example, when power that knob 700 is applied can reset propulsive mechanism 530 to start, the said propulsive mechanism 530 that the resets predetermined advance distance of contact site 532 propellings that will link.Said interlock contact site 532 contacts with transmission arm 410, thereby starts sharpening mechanism 100.When said interlock contact site 532 contacts with transmission arm 410; The bar of said transmission arm 410 pivots and joint sharpening mechanism 100; So that grinding stone is moved to exposure position from punctured position; Thereby grinding stone is promoted a controlled preset distance, because the propulsive mechanism 530 that can reset has moved a controlled predetermined advance distance.
Though this paper has explained propulsive mechanism 530 with respect to the propelling of moving of the grinding stone of sharpening mechanism; But those of ordinary skill in the art is understood that; Propulsive mechanism 530 also can be used for advancing the moving of parts of the hand-operated tools (for example, caulking gun) of other types.
Preceding text are illustrated chain saw sharpening mechanism in the exemplary embodiments and the operation in chain saw thereof.But, it should be understood that emphasis of the present invention is the propulsive mechanism that can reset.
Industrial applicibility: the present invention is applicable to power tool and industrial field of tool.
Claims (39)
1. a propulsive mechanism (530) comprising:
Post (600);
Engaging mechanism shell (610) has upper casing section (614) and lower part (616), and said engaging mechanism shell (610) is configured to reciprocally hold said post (600);
First rotation control mechanism (620) comprising:
Ratchet (622) has a plurality of hook tooths (623) on the upper surface that is positioned at said ratchet (622), and said ratchet (622) is coupled to said post (600); And
Ratchet (624) has a plurality of pawl teeth (625) on the upper surface that is positioned at said ratchet (624), and said pawl teeth (625) is configured to engage ordinatedly with said hook tooth (623);
First bias piece (630) is towards said ratchet (622) and the said ratchet of bias voltage (624); And
Second bias piece (640) is biased into non-actuation position (600) with said post;
Wherein, Said first rotation control mechanism (620) and said lower part (616) are constructed to; Make said hook tooth (623) and said pawl teeth (625) depart from each other when being in said non-actuation position at said post (600); And said hook tooth (623) is aligned with each other when being in enable position at said post (600) with pawl teeth (625), so that advance said hook tooth (623).
2. propulsive mechanism according to claim 1 (530); Wherein, Said lower part (616) has a plurality of guide rails (650); Said guide rail (650) is formed at a plurality of reliefs (652) on the outer rim that engages said ratchet (622) in said engaging mechanism shell (610) when said post (600) moves back and forth; Said guide rail (650) is configured to, and makes said hook tooth (623) and said pawl teeth (625) depart from each other when engaging with said guide rail (650) at said a plurality of reliefs (652) of said ratchet (622).
3. according to each described propulsive mechanism (530) in the claim 1 to 2; Further comprise second rotation control mechanism (660); Said second rotation control mechanism is configured to engage ordinatedly with said post (600); Said second rotation control mechanism (660) is contained in the upper casing section (614) of said engaging mechanism shell (610) and is configured to, and makes said second rotation control mechanism (660) allow the rotation that makes progress at folk prescription.
4. propulsive mechanism according to claim 3 (530), wherein, said second bias piece (640) is coupled to second rotation control mechanism (660) and is coupled to said engaging mechanism shell (610) at second end at first end.
5. propulsive mechanism according to claim 3 (530); Wherein, Said second rotation control mechanism (660) comprises having most advanced and sophisticated a plurality of fins (662) respectively, and wherein, the tip of each said fin (662) is configured to engage ordinatedly with the interior a plurality of wing tanks (664) of said upper casing (614).
6. according to each described propulsive mechanism (530) in the claim 1 to 5, wherein, said lower part (616) has a plurality of pawl slots (670) between the corresponding guide rail (650) that is positioned at said lower part (616).
7. propulsive mechanism according to claim 6 (530); Wherein, Said ratchet (624) has a plurality of ratchet ribs (672), and said ratchet rib (672) is arranged and is configured to engage ordinatedly with the said pawl slot (670) of said lower part (616) along the outer rim of said ratchet (624).
8. according to each described propulsive mechanism (530) in the claim 1 to 7, wherein, said post (600) has threaded portion (602), and wherein, said ratchet (622) has screw thread, is used for engaging with the said threaded portion (602) of said post (600).
9. according to each described propulsive mechanism (530) in the claim 1 to 8, wherein, the upper casing section (614) of said engaging mechanism shell (610) has a plurality of post grooves (680) along the inner edge layout that are between said upper casing section (614) and the said lower part (616).
10. propulsive mechanism according to claim 9 (530); Wherein, Said post (600) further comprises a plurality of rib of columns (682), and the said rib of column (680) is arranged and is configured to engage ordinatedly with the said post groove (680) that is positioned between said upper casing section (614) and the said lower part (616) along the outer rim of said post (600).
11. propulsive mechanism according to claim 10 (530), wherein, said post groove (680) is taper.
12., further comprise the knob (700) that is configured to start said post (600) according to each described propulsive mechanism (530) in the claim 1 to 11.
13. propulsive mechanism according to claim 12 (530), wherein, said knob (700) rotatably is coupled to said post (600).
14. a chain grinding machine that is used for chain saw comprises:
Sharpening mechanism (100), it has grinding stone (160); And
Propulsive mechanism (530) is configured to, and starts said sharpening mechanism (100) through said grinding stone (160) is moved to exposure position from punctured position, and said propulsive mechanism (530) comprising:
Post (600) has the interlock contact site (532) that is positioned at far-end;
Engaging mechanism shell (610) has upper casing section (614) and lower part (616), and said engaging mechanism shell (610) is configured to reciprocally hold said post (600);
First rotation control mechanism (620) comprising:
Ratchet (622) has a plurality of hook tooths (623) on the upper surface that is positioned at said ratchet (622), and said ratchet (622) is coupled to said post (600); And
Ratchet (624) has a plurality of pawl teeth (625) on the upper surface that is positioned at said ratchet (624), and said pawl teeth (625) is configured to engage ordinatedly with said hook tooth (623);
First bias piece (630); Towards said ratchet (622) and the said ratchet of bias voltage (624);
Second bias piece (640) is biased into non-actuation position with said post (600); And
Wherein, Said first rotation control mechanism (620) and said lower part (616) are constructed to; Make said hook tooth (623) and said pawl teeth (625) depart from each other when being in said non-actuation position at said post (600); And said hook tooth (623) is aligned with each other when being in enable position at said post (600) with pawl teeth (625), so that advance said hook tooth (623).
15. the chain grinding machine that is used for chain saw according to claim 14; Wherein, Said lower part (616) has a plurality of guide rails (650); Said guide rail (650) is formed at a plurality of reliefs (652) on the outer rim that engages said ratchet (622) in said engaging mechanism shell (610) when said post (600) moves back and forth; Said guide rail (650) is configured to, and makes said hook tooth (623) and said pawl teeth (625) depart from each other when engaging with said guide rail (650) at said a plurality of reliefs (652) of said ratchet (622).
16., further comprise according to each described chain grinding machine that is used for chain saw in the claim 14 to 15:
Transmission arm (410) couples said sharpening mechanism (100) with said propulsive mechanism (530), said transmission arm (410) is configured to contact the interlock contact site (532) of said post (600), thereby starts said sharpening mechanism (100).
17. according to each described chain grinding machine that is used for chain saw in the claim 14 to 16; Further comprise second rotation control mechanism (660); Said second rotation control mechanism is configured to engage ordinatedly with said post (600); Said second rotation control mechanism (660) is contained in the upper casing section (614) of said engaging mechanism shell (610) and is configured to, and makes said second rotation control mechanism (660) allow the rotation that makes progress at folk prescription.
18. the chain grinding machine that is used for chain saw according to claim 17, wherein, said second bias piece (640) is coupled to second rotation control mechanism (660) and is coupled to said engaging mechanism shell (610) at second end at first end.
19. the chain grinding machine that is used for chain saw according to claim 17; Wherein, Said second rotation control mechanism (660) comprises fin (662), and wherein, the tip of said fin (662) is configured to engage ordinatedly with the interior a plurality of wing tanks (664) of said upper casing (614).
20. according to each described chain grinding machine that is used for chain saw in the claim 13 to 17, wherein, said lower part (616) has a plurality of pawl slots (670) between the corresponding guide rail (650) that is positioned at said lower part (616).
21. the chain grinding machine that is used for chain saw according to claim 20; Wherein, Said ratchet (624) further comprises a plurality of ratchet ribs (672), and said ratchet rib (672) is arranged and is configured to engage ordinatedly with the said pawl slot (670) of said lower part (616) along the outer rim of said ratchet (624).
22. according to each described chain grinding machine that is used for chain saw in the claim 14 to 21, wherein, said post (600) has threaded portion (602), and wherein, said ratchet (622) has screw thread, is used for engaging with the said threaded portion (602) of said post (600).
23. according to each described chain grinding machine that is used for chain saw in the claim 14 to 22; Wherein, the upper casing section (614) of said engaging mechanism shell (610) has a plurality of post grooves (680) along the inner edge layout that are between said upper casing section (614) and the said lower part (616).
24. according to each described chain grinding machine that is used for chain saw in the claim 14 to 23; Wherein, Said post (600) further comprises a plurality of rib of columns (682), and the said rib of column (680) is arranged and is configured to engage ordinatedly with the said post groove (680) that is positioned between said upper casing section (614) and the said lower part (616) along the outer rim of said post (600).
25., further comprise the knob (700) that rotatably is configured to start said post (600) according to each described chain grinding machine that is used for chain saw of claim 14 to 24.
26. a chain saw comprises:
Engine housing (520);
Cutting chain (550) is arranged in around the drive sprocket;
Sharpening mechanism (100) has grinding stone (160); And,
Propulsive mechanism (530) is configured to start said sharpening mechanism (100), thereby said grinding stone (160) is moved to exposure position from punctured position, and said propulsive mechanism (530) comprising:
Post (600) has interlock contact site (532);
Engaging mechanism shell (610) has upper casing section (614) and lower part (616), and said engaging mechanism shell (610) is configured to reciprocally receive said post (600);
First rotation control mechanism (620) comprising:
Ratchet (622) has a plurality of hook tooths (623) on the upper surface that is positioned at said ratchet (622), and said ratchet (622) is coupled to said post (600); And
Ratchet (624) has a plurality of pawl teeth (625) on the upper surface that is positioned at said ratchet (624), and said pawl teeth (625) is configured to engage ordinatedly with said hook tooth (623);
First bias piece (630) is towards said ratchet (622) and the said ratchet of bias voltage (624);
Second bias piece (640) is biased into non-actuation position with said post (600); And,
Wherein, Said first rotation control mechanism (620) and said lower part (616) are constructed to; Make said hook tooth (623) and said pawl teeth (625) depart from each other when being in said non-actuation position at said post (600); And said hook tooth (623) is aligned with each other when being in enable position at said post (600) with pawl teeth (625), so that advance said hook tooth (623).
27. chain saw according to claim 26; Wherein, Said lower part (616) has a plurality of guide rails (650); Said guide rail (650) is formed at a plurality of reliefs (652) on the outer rim that engages said ratchet (622) in said engaging mechanism shell (610) when said post (600) moves back and forth, and said guide rail (650) is configured to, and makes said hook tooth (623) and said pawl teeth (625) depart from each other when engaging with said guide rail (650) at said a plurality of reliefs (652) of said ratchet (622).
28., further comprise according to each described chain saw in the claim 26 to 27:
Transmission arm (410) couples said sharpening mechanism (100) with said propulsive mechanism (530), said transmission arm (410) is configured to contact the interlock contact site (532) of said post (600), thereby starts said sharpening mechanism (100).
29. according to each described chain saw in the claim 26 to 28, wherein, said propulsive mechanism is fixed on the said engine housing (520), makes said post (600) partly be in the outside of said engine housing (520).
30. according to each described chain saw in the claim 26 to 29; Further comprise second rotation control mechanism (660); Said second rotation control mechanism is configured to engage ordinatedly with said post (600); Said second rotation control mechanism (660) is contained in the upper casing section (614) of said engaging mechanism shell (610) and is configured to, and makes said second rotation control mechanism (660) allow the rotation that makes progress at folk prescription.
31. chain saw according to claim 30, wherein, said second bias piece (640) is coupled to second rotation control mechanism (660) and is coupled to said engaging mechanism shell (610) at second end at first end.
32. chain saw according to claim 30, wherein, said second rotation control mechanism (660) comprises fin (662), and wherein, the tip of said fin (662) is configured to engage ordinatedly with the interior a plurality of wing tanks (664) of said upper casing (614).
33. according to each described chain saw in the claim 26 to 32, wherein, said lower part (616) has a plurality of pawl slots (670) between the corresponding guide rail (650) that is positioned at said lower part (616).
34. chain saw according to claim 33; Wherein, Said ratchet (624) further comprises a plurality of ratchet ribs (672), and said ratchet rib (672) is arranged and is configured to engage ordinatedly with the said pawl slot (670) of said lower part (616) along the outer rim of said ratchet (624).
35. according to each described chain saw in the claim 26 to 34, wherein, said post (600) has threaded portion (602), and wherein, said ratchet (622) has screw thread, is used for engaging with the said threaded portion (602) of said post (600).
36. according to each described chain saw in the claim 26 to 35, wherein, the upper casing section (614) of said engaging mechanism shell (610) has a plurality of post grooves (680) along the inner edge layout that are between said upper casing section (614) and the said lower part (616).
37. chain saw according to claim 36, wherein, said post (600) further comprises a plurality of rib of columns (682), and the said rib of column (680) is arranged and is configured to engage ordinatedly with the said post groove (680) of said upper casing section (614) along the outer rim of said post (600).
38., further comprise the knob (700) that is used to start said post (600) according to each described chain saw in the claim 26 to 37.
39. according to the described chain saw of claim 38, wherein, said knob (700) rotatably is coupled to said post (600).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2009/050147 WO2011005261A1 (en) | 2009-07-09 | 2009-07-09 | Resettable advancement mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102470461A true CN102470461A (en) | 2012-05-23 |
Family
ID=41796202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980160383.6A Pending CN102470461A (en) | 2009-07-09 | 2009-07-09 | Resettable advancement mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102470461A (en) |
| WO (1) | WO2011005261A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207106A (en) * | 2014-12-12 | 2017-09-26 | 赫勒曼泰顿股份有限公司 | The compound tension force and correcting mechanism with parting tool is tensioned for binding band |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062253A (en) * | 1976-06-10 | 1977-12-13 | Mcculloch Corporation | Chain saw sharpener |
| US4457069A (en) * | 1983-01-20 | 1984-07-03 | Mcculloch Corporation | Sharpening device for a chain saw |
-
2009
- 2009-07-09 WO PCT/US2009/050147 patent/WO2011005261A1/en active Application Filing
- 2009-07-09 CN CN200980160383.6A patent/CN102470461A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207106A (en) * | 2014-12-12 | 2017-09-26 | 赫勒曼泰顿股份有限公司 | The compound tension force and correcting mechanism with parting tool is tensioned for binding band |
| CN107207106B (en) * | 2014-12-12 | 2019-10-18 | 赫勒曼泰顿股份有限公司 | Compound tension and correcting mechanism for binding band tensioning and parting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011005261A1 (en) | 2011-01-13 |
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Application publication date: 20120523 |