CN204019647U - Chain saw - Google Patents
Chain saw Download PDFInfo
- Publication number
- CN204019647U CN204019647U CN201420471784.1U CN201420471784U CN204019647U CN 204019647 U CN204019647 U CN 204019647U CN 201420471784 U CN201420471784 U CN 201420471784U CN 204019647 U CN204019647 U CN 204019647U
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- rotating shaft
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- vertical rotating
- guide rod
- chain
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Abstract
The utility model provides a kind of chain saw, can with sensation with simple operations adjustment saw chain tension state in this chain saw.The sprocket wheel rotated driving with the motor being accommodated in main body frame is given and saw chain along guide rod periphery sliding guidance and in the chain saw rotated, if as lower member forms the mechanism of adjustment saw chain tension state: vertical rotating shaft, is supported in the inner side in the single side surface portion of main body frame in the mode that can rotate around vertical axis; Hand wheel, rotatablely in the plane of the axis vertical take-off with vertical rotating shaft is operatively fixed as one with vertical rotating shaft; Feathering axis, the mode that rotates of horizontal axis on fore-and-aft direction can be supported in the inner side in the single side surface portion of main body frame, in order to corresponding with the rotation of vertical rotating shaft and engage with vertical rotating shaft; Adjusting pin, is screwed with feathering axis, moves along the longitudinal direction accordingly with the rotation of feathering axis, and with the movement on its fore-and-aft direction, guide rod is moved along the longitudinal direction.
Description
Technical field
The utility model relates to a kind of chain saw, particularly relates to a kind of mechanism of the tensioning state for adjusting saw chain, is a kind of mechanism in order to study intensively with the tensioning state of shirtsleeve operation adjustment saw chain with sensation.
Background technology
By the saw chain high-speed rotary making to link ringwise saw sword (sawtooth) with motor driven transfer cut off trees, timber etc. chain saw when saw chain relaxes because using throughout the year, the saw chain that more renews time, in order to by directed along the periphery of guide rod by sprocket wheel swivel feeding and the tensioning state of saw chain slided is adjusted to best state, being provided with can to adjust the mechanism of the position of guide rod relative to the mode of sprocket wheel movement along the longitudinal direction.
The example of the mechanism of the tensioning state of adjustment saw chain is disclosed in patent document 1 and 2.In the mechanism disclosed in patent document 1, have employed following structure: speedup is carried out in the rotation utilizing gear ratio to be less than the hand wheel of the gear mesh adjustment of 1, thus the 2nd rotating shaft is rotated, then utilize the adjustment pin be screwed in the feed screw portion of the 2nd rotating shaft that guide rod is retreated along front and back.Thereby, it is possible to adjust the tensioning state of saw chain significantly with less operational ton.In the mechanism disclosed in patent document 2, have employed following structure: utilize the adjustment pin be screwed in having carried out the feed screw portion of the 2nd rotating shaft of gear transmission to the rotation of the hand wheel adjusted that guide rod is retreated along front and back, now, the 2nd engaging between rotating shaft with adjustment pin is enable to contact/be separated, even if do not make the 2nd rotating shaft rotate, adjustment pin also can be made as required along movable.In any case, the direction of operating (utilizing finger to carry out the direction driven) of hand wheel is above-below direction.
Patent document 1: Japanese Unexamined Patent Publication 2010-269490 publication
Patent document 2: Japanese Unexamined Patent Publication 2010-269491 publication
Utility model content
The problem that utility model will solve:
The purpose of this utility model is to provide a kind of when adjusting the tensioning state of saw chain, can with sensation with the chain saw of the tensioning state of shirtsleeve operation adjustment saw chain.
Scheme for dealing with problems:
In order to solve the problem, the feature of chain saw of the present utility model is to possess: motor, and it is accommodated in the main body frame of chain saw; Sprocket wheel, it is driven by motor and rotates; Guide rod, it is elongated plate body, is installed on main body frame adjusting relative to the mode of the fore-and-aft direction position of sprocket wheel; Saw chain, it is by chain wheel drive, the periphery along guide rod directed and slide and rotate around the periphery of above-mentioned guide rod; Vertical rotating shaft, it is supported in the inner side in the single side surface portion of main body frame in the mode that can rotate around vertical axis; Hand wheel, it is rotatable in the plane of the axis vertical take-off with vertical rotating shaft is operatively fixed as one with vertical rotating shaft; Feathering axis, it, the mode that rotates of horizontal axis on fore-and-aft direction can be supported in the inner side in the single side surface portion of main body frame, fastens with vertical rotating shaft to carry out accordingly rotating with the rotation of vertical rotating shaft; And adjusting pin, it is screwed mutually with feathering axis, moves along the longitudinal direction accordingly with the rotation of feathering axis, and utilizes the movement on its fore-and-aft direction that guide rod is moved along the longitudinal direction.
In the chain saw of this utility model, motor is accommodated in the part kept left of main body frame, in the mode of extending toward the front from the part of keeping right of main body frame, guide rod is installed on main body frame, the vertical rotating shaft of the mechanism of the tensioning state as adjustment saw chain and feathering axis are supported on the inner side of the right side side surface part of main body frame, two rotating shafts are engaged by bevel gear.
According to above-mentioned chain saw, it is characterized in that, motor is incorporated in the part kept left of main body frame, guide rod is installed on main body frame in the mode of extending toward the front from the part of keeping right of main body frame, vertical rotating shaft is supported in the inner side of the right side side surface part of main body frame, feathering axis is supported in the inner side of the right side side surface part of main body frame, and utilizing bevel gear and vertical rotating shaft to fasten, the part of hand wheel is exposed from the operation window on top of the side, right side being located at main body frame.
The effect of utility model:
According to the utility model, in chain saw, can with sensation with the tensioning state of shirtsleeve operation adjustment saw chain.
Accompanying drawing explanation
Fig. 1 is the stereogram observed from right back of the overall appearance of the chain saw representing an embodiment of the present utility model.
Fig. 2 is the horizontal cross of the chain saw shown in Fig. 1.
Fig. 3 represents stereogram that removed the state of the chainsaw chain wheel cover shown in Fig. 1, that observe from right back.
Fig. 4 be represent so that from the chain saw shown in Fig. 3 removed the state of guide rod, from the side view of right observation.
Fig. 5 is the side view that diagram adjusts the mechanism of the tensioning state of saw chain of the present utility model.
Description of reference numerals
10, main body frame; 11, the first in command; 12, the second in command; 13, tightening knob; 14, chain wheel cover; 15, trigger switch; 16, operation window; 17, bolt; 18, fulcrum post; 20, motor; 21, sprocket wheel; 22, guide rod; 22a, elongated hole; 22b, locking hole; 23, saw chain; 30, adjusting pin; 31, vertical rotating shaft; 32, hand wheel; 33, feathering axis; 34,35, bevel gear; 36, feed screw.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of the embodiment of chain saw of the present utility model.The chain saw of embodiment of the present utility model is formed as following structure: its be Fig. 1 from right back observe stereogram shown in outward appearance, there is the internal structure shown in horizontal cross of Fig. 2, the part kept left of main body frame 10 will be accommodated in as the motor 20 of engine, guide rod 22 extends toward the front from the part of keeping right, and saw chain 23 (being expressed as double dot dash line in the drawings) is directed and slide and rotate around the periphery of this guide rod 22 along the periphery of this guide rod 22.In order to hold chain saw with hand in use, being provided with the 1st handle 11 and the 2nd handle 12 at main body frame 10, being provided with the trigger switch 15 of the starting/stopping of the rotation controlling saw chain in use in the inner side of the 2nd handle 12.Fig. 3 represents the tightening knob 13 of the right flank unscrewing main body frame 10 under the state of Fig. 1 and removes the state of chain wheel cover 14, and saw chain 23 sets up along the periphery of guide rod 22 from sprocket wheel 21.The rotation of motor 20 is passed to sprocket wheel 21 via gear, and when sprocket wheel 21 rotates, saw chain 23 rotates, as chain saw work along the periphery of guide rod 22.
At guide rod 22 place, elongated elongated hole 22a is offered along the longitudinal direction near end in front of it, run through in this elongated hole 22a and have bolt 17 projecting from main body frame 10 and fulcrum post 18, for limit guide rod 22 relative to the position on the above-below direction of main body frame 10, and allow this guide rod 22 movement in the longitudinal direction.At bolt 17, place has been screwed tightening knob 13, has played effect chain wheel cover 14 and guide rod 22 being anchored on main body frame 10.Under the state of unscrewing tightening knob 13, guide rod 22 can carry out position adjustment along the longitudinal direction relative to main body frame 10, that is, can adjust the distance relative to sprocket wheel 21, thereby, it is possible to the tensioning state of adjustment saw chain 23.Fig. 4 is the side view of the state represented under the state of Fig. 3 after further dismounting guide rod 22, when illustrating that with reference to Fig. 3 and Fig. 4 guide rod 22 position in the longitudinal direction adjusts, can the adjusting pin 30 of movement along the longitudinal direction engaging in the locking hole 22b of guide rod 22, along with making adjusting pin 30 retreat along the longitudinal direction, guide rod 22 is retreated along the longitudinal direction.
Then, with reference to Fig. 4 and Fig. 5, the mechanism that adjusting pin 30 is retreated along the longitudinal direction is described.In the inner side of the side, right side of main body frame 10, and the position near the end, front (end near the side of sprocket wheel 21) of guide rod 22, vertical rotating shaft 31 is supported in main body frame 10 in the mode that can rotate around its vertical axis, the roughly discoideus hand wheel 32 extended in the plane of the axis vertical take-off with vertical rotating shaft 31 is fixed as one with vertical rotating shaft 31, in order to the finger of operating personnel can be utilized to carry out rotation process, the part of hand wheel 32 is exposed from the operation window 16 on top of the side, right side being located at main body frame 10.In the below of vertical rotating shaft 31, and equally in the inner side of the side, right side of main body frame 10, feathering axis 33 across fore-and-aft direction is supported in main body frame 10 in the mode that can rotate around its horizontal axis, engaged by bevel gear 34,35 at position intersected with each other between vertical rotating shaft 31 with feathering axis 33, make the rotation of vertical rotating shaft 31 be passed to feathering axis 33.Feed screw 36 is cut out in feathering axis 33, adjusting pin 30 is screwed in feed screw 36, along with the rotation of feathering axis 33, adjusting pin 30 is retreated along the longitudinal direction, by the locking hole 22b place at guide rod 22 forwards or rear pushing adjusting pin 30 and guide rod 22 is retreated along the longitudinal direction.
When changing saw chain 23, unscrew tightening knob 13 and it is removed from bolt 17, and then remove chain wheel cover 14, to direction, front (being viewed as from above clockwise) rotation process hand wheel 32, guide rod 22 is made to retreat (namely, near sprocket wheel 21), make saw chain 23 lax and removed, then new saw chain 23 is set up in sprocket wheel 21 to guide rod 22, suitably tensioning state is adjusted according to step contrary to the above, then cover chain wheel cover 14, utilize tightening knob 13 chain wheel cover 14 and guide rod 22 tightened and be fixed on main body frame 10.When only adjusting the tensioning state of saw chain 23, unscrew tightening knob 13, under the state of not removing chain wheel cover 14, operation hand wheel 32 adjusts the fore-and-aft direction position of guide rod 22, and carries out fastening in position.
In the embodiment illustrated above, in order to adjust the tensioning state of saw chain 23, under the state of unscrewing tightening knob 13, when the hand wheel seen from operation window 16 32 is forwards rotated, adjusting pin 30 is front and then forwards pushed by guide rod 22, and saw chain 23 tensioning, when rearward rotating hand wheel 32, adjusting pin 30 retreats and is rearward pushed by guide rod 22, and saw chain 23 relaxes.
As described above, chain saw of the present utility model due to by operating hand wheel and make guide rod retreat along the longitudinal direction along the longitudinal direction, makes saw chain tension/lax, therefore, it is possible to sensation with the tensioning state of shirtsleeve operation adjustment saw chain.
Claims (2)
1. a chain saw, is characterized in that, possesses:
Motor, it is accommodated in the main body frame of chain saw;
Sprocket wheel, it is driven by said motor and rotates;
Guide rod, it is elongated plate body, is installed on aforementioned body framework adjusting relative to the mode of the fore-and-aft direction position of above-mentioned sprocket wheel;
Saw chain, it is by above-mentioned chain wheel drive, the periphery along above-mentioned guide rod directed and slide and rotate around the periphery of above-mentioned guide rod;
Vertical rotating shaft, it is supported in the inner side in the single side surface portion of aforementioned body framework in the mode that can rotate around vertical axis;
Hand wheel, it is rotatable in the plane of the axis vertical take-off with above-mentioned vertical rotating shaft is operatively fixed as one with above-mentioned vertical rotating shaft;
Feathering axis, it, the mode that rotates of horizontal axis on fore-and-aft direction can be supported in the inner side in the single side surface portion of aforementioned body framework, fastens with above-mentioned vertical rotating shaft to carry out accordingly rotating with the rotation of above-mentioned vertical rotating shaft; And
Adjusting pin, it is screwed mutually with above-mentioned feathering axis, moves along the longitudinal direction accordingly with the rotation of above-mentioned feathering axis, and utilizes the movement on its fore-and-aft direction that above-mentioned guide rod is moved along the longitudinal direction.
2. chain saw according to claim 1, is characterized in that,
Said motor is incorporated in the part kept left of aforementioned body framework,
Above-mentioned guide rod is installed on aforementioned body framework in the mode of extending toward the front from the part of keeping right of aforementioned body framework,
Above-mentioned vertical rotating shaft is supported in the inner side of the right side side surface part of aforementioned body framework,
Above-mentioned feathering axis is supported in the inner side of the right side side surface part of aforementioned body framework, and utilizes bevel gear and above-mentioned vertical rotating shaft to fasten,
A part for aforesaid operations wheel is exposed from the operation window on top of the side, right side being located at aforementioned body framework.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-175232 | 2013-08-27 | ||
| JP2013175232A JP2015044293A (en) | 2013-08-27 | 2013-08-27 | Chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204019647U true CN204019647U (en) | 2014-12-17 |
Family
ID=52059555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420471784.1U Active CN204019647U (en) | 2013-08-27 | 2014-08-20 | Chain saw |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015044293A (en) |
| CN (1) | CN204019647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112930237A (en) * | 2018-11-06 | 2021-06-08 | 胡斯华纳有限公司 | Chain saw |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6615648B2 (en) | 2016-03-10 | 2019-12-04 | 株式会社マキタ | Chainsaw |
| JP6681226B2 (en) | 2016-03-10 | 2020-04-15 | 株式会社マキタ | Chainsaw |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5314496B2 (en) * | 2009-05-20 | 2013-10-16 | 株式会社マキタ | Chainsaw |
| JP5462528B2 (en) * | 2009-05-20 | 2014-04-02 | 株式会社マキタ | Chainsaw |
| CN103009438B (en) * | 2012-12-05 | 2015-07-15 | 南京德朔实业有限公司 | Chain saw |
-
2013
- 2013-08-27 JP JP2013175232A patent/JP2015044293A/en active Pending
-
2014
- 2014-08-20 CN CN201420471784.1U patent/CN204019647U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112930237A (en) * | 2018-11-06 | 2021-06-08 | 胡斯华纳有限公司 | Chain saw |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015044293A (en) | 2015-03-12 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |