CN104209987A - Chain saw - Google Patents
Chain saw Download PDFInfo
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- CN104209987A CN104209987A CN201310209745.4A CN201310209745A CN104209987A CN 104209987 A CN104209987 A CN 104209987A CN 201310209745 A CN201310209745 A CN 201310209745A CN 104209987 A CN104209987 A CN 104209987A
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- guide plate
- chain
- chain saw
- millimeters
- knob
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Abstract
The invention relates to a chain saw. The chain saw comprises a case (1), a chain wheel (2) installed on the case, a guide plate (3) which is meshed with the chain wheel (2) and extends outside the case (1), a chain (4) which circulates along the edge of the guide plate (3) and is meshed with the edge of the guide plate (3), and a side cover (5) above the guide plate, wherein a through groove is formed in the guide plate (3). The chain saw further comprises a tensioning chain installed inside the side cover (5) and a device used for fixing the guide plate. A rotatable knob (6) is arranged on the side cover (5) of the chain saw and used for controlling the tensioning chain and the device used for fixing the guide plate to make the guide plate (3) move horizontally relative to the chain wheel (2) so that the chain can be tensioned, and the guide plate can be fastened accordingly. According to the chain saw, the tensioning chain and the device used for fixing the guide plate control the guide plate to move in two directions through the same knob, so that the chain saw is ingenious in design and convenient to use; the tensioning degree of the chain is judged without dependence on personal experience due to the accurate spring design, and chain tensioning can be realized conveniently and accurately through operation by anyone.
Description
Technical field
The present invention relates to a kind of chain saw, particularly the device of a kind of tensioner chain and resting guide.
Background technology
Chain saw is that a kind of chain that utilizes band blade drives chain high-speed rotary to transfer the garden tool set of cutting timber or branch by power.If chain is not by tensioning suitably, mistake pine may jump out of guide plate and cause the injury to operating personnel, and the chain of tension may cause high temperature fault due to the excessive friction between chain and guide plate.Equally during use, due to the wearing and tearing of chain, the tension force of chain has sizable change, uses after a period of time, and the length of chain increases gradually, and its rate of tension reduces.
At present, existing known chain tension method is probably divided into two large classes, and a class is to use one or an above specific purpose tool, directly or indirectly turn adjusting screw(rod) and anchorage clip jack panel, this structure needs user to carry adjustment means, uses inconvenient; Another kind of be can not need by instrument, directly by regulating the handle that can rotate by hand or knob to drive a series of adjustment structures to realize respectively the fixing of the tensioning of chain and guide plate.Above-mentioned two class methods, the tensioning degree of chain all will lean on operator's experience, is difficult to control.And need to regulate in order the rate of tension of chain saw and the tautness of guide plate, as not in place in there is adjusting, need repeatedly to regulate according to the order of sequence operation inconvenience.Chinese patent application CN200710157143.3 discloses a kind of governor motion of chain chain.Chinese patent application CN200610138866 discloses a kind of chain saw and has regulated the device of the chain saw tension force of chain saw.All there is adjusting knob and screw knob and be respectively used to adjust the tensioning of chain and fixing of guide plate.
Summary of the invention
The object of the invention is to solve above-mentioned deficiency, the chain saw that the tautness that provides knob of a kind of need operation to complete chain tension degree and guide plate regulates and the device of tensioner chain and resting guide thereof.
The technical scheme that realizes the object of the invention is: a kind of chain saw comprises casing, be arranged on the sprocket wheel on casing, with sprocket engagement and extend in the guide plate outside casing, circulate along guide plate edge and be engaged on the chain on guide plate edge, the side cover of guide plate top, described guide plate has and runs through groove; Chain saw also comprises the tensioner chain that is arranged in side cover and the device of resting guide, the relative sprocket wheel of guide plate is moved horizontally make chain tension thereby be provided with described in 1 rotatable knob control the device of tensioner chain and resting guide on the side cover of chain saw, and further make guide plate fastening.
Above-mentioned chain saw, the device of preferred described tensioner chain and resting guide comprises the guide plate fixture being fixed on guide plate, bolt is fixed on casing surface through guide plate and guide plate fixture; Described guide plate fixture front end face has at least 2 lugs, is respectively horizontal parallel lug and longitudinal vertically lug, and described horizontal parallel lug snaps in guide plate to be run through in draw-in groove corresponding on groove, and guide plate fixture rear end face is circular arc; The device of described tensioner chain and resting guide also comprises the driving mechanism that drives guide plate to move horizontally that matches with the longitudinally vertical lug of guide plate fixture.
Above-mentioned chain saw, preferred driving mechanism comprises cam, the lower end tooth being fastenedly connected with cam; Also comprise and be embedded in the female inserts of tool on described knob, the outside sheathed flexible member of inserts, inserts is connected with bolt thread through upper end tooth, described upper end tooth and lower end tooth interlock.
Above-mentioned chain saw, preferred described flexible member is helical spring.
Above-mentioned chain saw, preferred described flexible member is helical spring, wire quality, elater diameter is 1 ~ 3.5 millimeter; Spring outer diameter is 15 ~ 25 millimeters; Pitch is 3 ~ 8 millimeters; Number of active coils is 3 ~ 8 circles; Free height is 20 ~ 40 millimeters.
Above-mentioned chain saw, preferred elater diameter is 1.5 millimeters; Spring outer diameter is 17 ~ 17.2 millimeters; Pitch is 5 millimeters; Number of active coils is 5 circles; Free height is 28 millimeters.
Above-mentioned chain saw, the extension of preferred described upper end tooth has at least three location fins, and described fin snaps in the draw-in groove of centring ring, and described centring ring is fastenedly connected on knob.
Above-mentioned chain saw, preferred described inserts one end is embedded on knob, and other end the initial segment is counterbore, is thereafter internal thread; On described inserts, offer draw-in groove, for installation shaft elastic spring.
Above-mentioned chain saw, preferred described cam and lower end tooth are fastenedly connected by countersunk head screw.
The present invention has positive effect: the tensioner chain of (1) chain saw and the device of resting guide are realized the both direction motion of a knob control guide plate, design ingenious, easy to use; (2) accurate spring design, without the tensioning degree that relies on individual micro-judgment chain, anyone operates equal energy reach chain tension degree conveniently, accurately.
Brief description of the drawings
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is decomposition diagram of the present invention.
Fig. 2 is knob of the present invention, inserts and centring ring and upper end tooth assembling schematic diagram.
Fig. 3 is the front view of Fig. 2.
Fig. 4 is the assembling schematic diagram of cam and lower end tooth.
Wherein 1 casing, 2 sprocket wheels, 3 guide plates, 4 chains, 5 side covers, 6 knobs, 7 guide plate fixtures, 8 bolts, 9 cams, 10 times end teeth, 11 inserts, 12 flexible members, end tooth on 13,14 centring rings, 15 countersunk head screws.
Detailed description of the invention
See Fig. 1, the present invention has 1, a kind of chain saw comprises casing 1, is arranged on the sprocket wheel 2 on casing, guide plate 3 outside engaging and extend in casing 1 with sprocket wheel 2, circulate along guide plate 3 edges and be engaged on the chain 4 on guide plate 3 edges, the side cover 5 of guide plate top, described guide plate 3 has and runs through groove; On the side cover 5 of chain saw, be provided with 1 rotatable knob 6.
Also comprise the tensioner chain that is arranged in side cover 5 and the device of resting guide, comprise the guide plate fixture 7 being fixed on guide plate 3, bolt 8 has external screw thread, is fixed on casing 1 surface through guide plate 3 and guide plate fixture 7; Guide plate fixture 7 front end faces have 2 lugs, respectively horizontal parallel lug and longitudinal vertical lugs, horizontal parallel lug snaps in guide plate 3 to be run through on groove in corresponding draw-in groove, promotes guide plate reach accordingly when guide plate fixture 7 is worked, and guide plate fixture 7 rear end faces are circular arc.
Also comprise the driving mechanism that drives guide plate to move horizontally that matches with the longitudinally vertical lug of guide plate fixture 7, comprise cam 9, the lower end tooth 10 being fastenedly connected by countersunk head screw 15 with cam 9, also comprise and be embedded in the female inserts 11 of tool on described knob 6, its one end is embedded on knob 6, other end the initial segment is counterbore, it after counterbore, is screw thread, inserts 11 outer cover have elastic component 12 for helical spring, inserts 11 is threaded with bolt 8 through upper end tooth 13, on it, offer draw-in groove, for installation shaft elastic spring, axle-steel silk back-up ring makes cam become as a whole with inserts etc., described upper end tooth 13 and lower end tooth interlock, the extension of upper end tooth 13 has three location fins, fin snaps in the draw-in groove of centring ring 14, centring ring 14 is fastenedly connected on knob 6.
Helical spring, wire quality, elater diameter is 2 millimeters; Spring outer diameter is 15 millimeters; Pitch is 3 millimeters; Number of active coils is 4 circles; Free height is 20 millimeters.
(embodiment 2)
See Fig. 1, the present invention has 1, a kind of chain saw comprises casing 1, is arranged on the sprocket wheel 2 on casing, guide plate 3 outside engaging and extend in casing 1 with sprocket wheel 2, circulate along guide plate 3 edges and be engaged on the chain 4 on guide plate 3 edges, the side cover 5 of guide plate top, described guide plate 3 has and runs through groove; On the side cover 5 of chain saw, be provided with 1 rotatable knob 6.
Also comprise the tensioner chain that is arranged in side cover 5 and the device of resting guide, comprise the guide plate fixture 7 being fixed on guide plate 3, bolt 8 has external screw thread, is fixed on casing 1 surface through guide plate 3 and guide plate fixture 7; Guide plate fixture 7 front end faces have 2 lugs, respectively horizontal parallel lug and longitudinal vertical lugs, horizontal parallel lug snaps in guide plate 3 to be run through on groove in corresponding draw-in groove, promotes guide plate reach accordingly when guide plate fixture 7 is worked, and guide plate fixture 7 rear end faces are circular arc.
Also comprise the driving mechanism that drives guide plate to move horizontally that matches with the longitudinally vertical lug of guide plate fixture 7, comprise cam 9, the lower end tooth 10 being fastenedly connected by countersunk head screw 15 with cam 9, also comprise and be embedded in the female inserts 11 of tool on described knob 6, its one end is embedded on knob 6, other end the initial segment is counterbore, it after counterbore, is screw thread, inserts 11 outer cover have elastic component 12 for helical spring, inserts 11 is threaded with bolt 8 through upper end tooth 13, on it, offer draw-in groove, for installation shaft elastic spring, axle-steel silk back-up ring makes cam become as a whole with inserts etc., described upper end tooth 13 and lower end tooth interlock, the extension of upper end tooth 13 has three location fins, fin snaps in the draw-in groove of centring ring 14, centring ring 14 is fastenedly connected on knob 6.
Elater diameter is 1.5 millimeters; Spring outer diameter is 17 ~ 17.2 millimeters; Pitch is 5 millimeters; Number of active coils is 5 circles; Free height is 28 millimeters.
Principle:
Design suitable spring according to the requirement of the tensile force of the chain of chain saw, the degree of tightness of chain determines by the size of the frictional force of 2 gear slippings; The size of frictional force is determined by the intensity of axle spring, therefore chain tension in the time rotating to gear slipping.As long as when anyone rotates to gear slipping, chain, in tensioning state, does not need to remove to judge tensioning degree by people's experience.
When use, rotation knob counterbore guiding inserts is concentric with bolt, and then screw thread screws 1 circle left and right, does not now compress guide plate, and now cam cylindrical contacts with lug, along with cam rotates, connects the guide plate reach of lug.Cam rotates the about knob 1 circle left and right cam tensioning guide plate that reruns, and guide plate is greater than the driving force of gear mesh cam to the resistance of cam, gear slipping, and cam stops operating, and guide plate is horizontal movement tension chain no longer further; Now chain is in tensioner state; Continue rotation knob, because the design gear of spring is always in skidding, cam no longer rotates, and now inserts end face starts to contact with guide plate, starts to compress guide plate, until screw.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a chain saw comprises casing (1), be arranged on the sprocket wheel (2) on casing, engage and extend in the outer guide plate (3) of casing (1) with sprocket wheel (2), circulate along guide plate (3) edge and be engaged on the chain (4) on guide plate (3) edge, the side cover (5) of guide plate top, described guide plate (3) has and runs through groove; Be characterised in that: described chain saw also comprises the tensioner chain that is arranged in side cover (5) and the device of resting guide, on the side cover (5) of chain saw, be provided with 1 rotatable knob (6) and control the device of described tensioner chain and resting guide, make the relative sprocket wheel (2) of guide plate (3) thereby move horizontally to make chain tension, and further make guide plate fastening.
2. chain saw according to claim 1, it is characterized in that: the device of described tensioner chain and resting guide comprises the guide plate fixture (7) being fixed on guide plate (3), bolt (8) is fixed on casing (1) surface through guide plate (3) and guide plate fixture (7); Described guide plate fixture (7) front end face has at least 2 lugs, is respectively horizontal parallel lug and longitudinal vertically lug, and described horizontal parallel lug snaps in guide plate (3) to be run through in draw-in groove corresponding on groove, and guide plate fixture (7) rear end face is circular arc; The device of described tensioner chain and resting guide also comprises the driving mechanism that drives guide plate to move horizontally that matches with the longitudinally vertical lug of guide plate fixture (7).
3. chain saw according to claim 2, is characterized in that: described driving mechanism comprises cam (9), the lower end tooth (10) being fastenedly connected with cam (9); Also comprise and be embedded in the upper female inserts of tool (11) of described knob (6), the outside sheathed flexible member of inserts (11) (12), inserts (11) is threaded with bolt (8) through upper end tooth (13), described upper end tooth (13) and lower end tooth interlock.
4. chain saw according to claim 3, is characterized in that: described flexible member (12) is helical spring.
5. chain saw according to claim 4, is characterized in that: described flexible member (12) is helical spring, wire quality, and elater diameter is 1 ~ 3.5 millimeter; Spring outer diameter is 15 ~ 25 millimeters; Pitch is 3 ~ 8 millimeters; Number of active coils is 3 ~ 8 circles; Free height is 20 ~ 40 millimeters.
6. chain saw according to claim 5, is characterized in that: elater diameter is 1.5 millimeters; Spring outer diameter is 17 ~ 17.2 millimeters; Pitch is 5 millimeters; Number of active coils is 5 circles; Free height is 28 millimeters.
7. chain saw according to claim 3, is characterized in that: the extension of described upper end tooth (13) has at least three location fins, and described fin snaps in the draw-in groove of centring ring (14), and described centring ring (14) is fastenedly connected on knob (6).
8. according to the arbitrary described chain saw of claim 2 ~ 7, it is characterized in that: it is upper that described inserts (11) one end is embedded in knob (6), and other end the initial segment is counterbore, is thereafter internal thread; On described inserts, offer draw-in groove, for installation shaft elastic spring.
9. according to the arbitrary described chain saw of claim 3 ~ 7, it is characterized in that: described cam (9) is fastenedly connected by countersunk head screw with lower end tooth (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209745.4A CN104209987B (en) | 2013-05-30 | 2013-05-30 | A kind of chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310209745.4A CN104209987B (en) | 2013-05-30 | 2013-05-30 | A kind of chain saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104209987A true CN104209987A (en) | 2014-12-17 |
| CN104209987B CN104209987B (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310209745.4A Active CN104209987B (en) | 2013-05-30 | 2013-05-30 | A kind of chain saw |
Country Status (1)
| Country | Link |
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| CN (1) | CN104209987B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106171827A (en) * | 2016-08-26 | 2016-12-07 | 苏州金莱克精密机械有限公司 | The tool-free tension mechanism of chain saw |
| CN106238820A (en) * | 2016-08-10 | 2016-12-21 | 上海电动工具研究所（集团）有限公司 | A kind of Electric chain saw chain tensioner and guide plate clamp device |
| CN110587722A (en) * | 2019-10-18 | 2019-12-20 | 常州格力博有限公司 | Chain saw |
| CN110587723A (en) * | 2019-10-18 | 2019-12-20 | 常州格力博有限公司 | Chain saw |
| EP3808520A3 (en) * | 2019-10-18 | 2021-06-30 | Globe (Jiangsu) Co., Ltd. | Chain saw |
| CN114425800A (en) * | 2022-01-21 | 2022-05-03 | 江苏东成工具科技有限公司 | Chain saw |
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| CN1640600A (en) * | 2004-01-08 | 2005-07-20 | 伊莱克斯家用产品有限公司 | Chain saw tensioning mechanism with locking teeth |
| CN2920593Y (en) * | 2006-07-10 | 2007-07-11 | 黄理 | Improved chain saw |
| CN100999029A (en) * | 2006-01-09 | 2007-07-18 | 孙鹤鸣 | Mechanical chain saw |
| WO2007117491A2 (en) * | 2006-04-05 | 2007-10-18 | Chain Masters, Inc. | Chain saw sharpener with composite wiskar |
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| US20110073064A1 (en) * | 2009-08-07 | 2011-03-31 | Nagesh Mavinahally | Integrally cast block and gaseous fuel injected generator engine |
| CN203282550U (en) * | 2013-05-30 | 2013-11-13 | 常州合力电器有限公司 | Chain saw |
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2013
- 2013-05-30 CN CN201310209745.4A patent/CN104209987B/en active Active
Patent Citations (7)
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| CN1640600A (en) * | 2004-01-08 | 2005-07-20 | 伊莱克斯家用产品有限公司 | Chain saw tensioning mechanism with locking teeth |
| CN100999029A (en) * | 2006-01-09 | 2007-07-18 | 孙鹤鸣 | Mechanical chain saw |
| WO2007117491A2 (en) * | 2006-04-05 | 2007-10-18 | Chain Masters, Inc. | Chain saw sharpener with composite wiskar |
| CN2920593Y (en) * | 2006-07-10 | 2007-07-11 | 黄理 | Improved chain saw |
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| US20110073064A1 (en) * | 2009-08-07 | 2011-03-31 | Nagesh Mavinahally | Integrally cast block and gaseous fuel injected generator engine |
| CN203282550U (en) * | 2013-05-30 | 2013-11-13 | 常州合力电器有限公司 | Chain saw |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238820A (en) * | 2016-08-10 | 2016-12-21 | 上海电动工具研究所（集团）有限公司 | A kind of Electric chain saw chain tensioner and guide plate clamp device |
| CN106171827A (en) * | 2016-08-26 | 2016-12-07 | 苏州金莱克精密机械有限公司 | The tool-free tension mechanism of chain saw |
| CN110587722A (en) * | 2019-10-18 | 2019-12-20 | 常州格力博有限公司 | Chain saw |
| CN110587723A (en) * | 2019-10-18 | 2019-12-20 | 常州格力博有限公司 | Chain saw |
| EP3808520A3 (en) * | 2019-10-18 | 2021-06-30 | Globe (Jiangsu) Co., Ltd. | Chain saw |
| EP3932636A1 (en) * | 2019-10-18 | 2022-01-05 | Globe (Jiangsu) Co., Ltd. | Chain saw |
| US11524423B2 (en) | 2019-10-18 | 2022-12-13 | Globe (Jiangsu) Co., Ltd | Chain saw |
| CN114425800A (en) * | 2022-01-21 | 2022-05-03 | 江苏东成工具科技有限公司 | Chain saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104209987B (en) | 2016-05-04 |
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Address after: 213011 No. 1 Wuyi Road, Qishuyan Economic Development Zone, Changzhou, Jiangsu Patentee after: Heli Electrical Appliances Co., Ltd., Changzhou City Address before: 213011 North Qishuyan village station, Changzhou, Jiangsu Patentee before: Heli Electrical Appliances Co., Ltd., Changzhou City |
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