CN111109040A - Chain saw adjusting device - Google Patents
Chain saw adjusting device Download PDFInfo
- Publication number
- CN111109040A CN111109040A CN202010067974.7A CN202010067974A CN111109040A CN 111109040 A CN111109040 A CN 111109040A CN 202010067974 A CN202010067974 A CN 202010067974A CN 111109040 A CN111109040 A CN 111109040A
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- gear
- knob
- slider
- lock nut
- lock
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- 238000003825 pressing Methods 0.000 claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/08—Felling trees
- A01G23/091—Sawing apparatus specially adapted for felling trees
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Sawing (AREA)
Abstract
The invention discloses a chain saw adjusting device which comprises a cover plate, a guide plate, a knob and a pressing device, wherein the pressing device comprises a first stud, a second stud, a first lock nut, a second lock nut and a brake plate, the first stud and the second stud penetrate through the guide plate, the first lock nut and the second lock nut are respectively connected to the first stud and the second stud and are matched with the brake plate to press the guide plate, the cover plate is positioned below the knob and covers the pressing device, the chain saw adjusting device further comprises a synchronizing gear, gear structures are arranged on the first lock nut and the second lock nut, and the synchronizing gear is respectively meshed with the first lock nut and the second lock nut. First lock is female, the female guide plate that all is used as compressing tightly of second lock, and the brake block is located and is played the effect that increases friction power between guide plate and first lock, the second lock is female, can be better compress tightly the guide plate. The synchronous gear plays a transmission role, the gear structures on the first lock nut and the second lock nut are meshed with the synchronous gear to realize synchronous rotation, and the first lock nut and the second lock nut synchronously rotate and press the guide plate after the knob is rotated.
Description
Technical Field
The invention relates to a chain saw, in particular to a chain saw adjusting device.
Background
The chain saw is a gardening tool mainly used for felling, and the working principle of the chain saw is that the cutting action is realized by the rapid movement of a blade on the saw chain. Therefore, the chain saw may be shaken violently during use, and if the saw chain is not adjusted before use and moves at a high speed, the saw chain may loosen or even separate from the guide plate under the violent shaking, which may result in safety accidents. Especially, the vibration generated when the high-power chain saw operates can lead the guide plate to be loosened, and the risk of the separation of the saw chain is higher. The existing saw chain adjusting device usually adopts a single-stud or double-stud structure to fix the guide plate, the adjusting device with the single-stud structure is more suitable for a low-power chain saw, and the adjusting device with the double-stud structure can be better suitable for a high-power chain saw, but the two studs respectively and independently press the guide plate, although the guide plate is reliable, the operation is complex, and therefore improvement needs to be provided.
Disclosure of Invention
The invention provides a novel chain saw adjusting device aiming at the defect that the operation of a saw chain adjusting device with a double-screw structure in the prior art is complicated.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides a chain saw adjusting device, includes apron, baffle, knob, closing device, the knob with closing device connects, closing device includes first double-screw bolt, second double-screw bolt, first lock is female, the second lock is female, the brake pedal, first double-screw bolt, second double-screw bolt pass the baffle, first lock is female, the second lock is female to be connected respectively on first double-screw bolt, second double-screw bolt and with the brake pedal cooperation compresses tightly the baffle, the apron is located the knob below covers closing device still includes synchronizing gear, first lock is female, the second lock is female to be equipped with gear structure, synchronizing gear respectively with first lock is female, the second lock is female to mesh mutually.
First lock is female, the female guide plate that all is used as compressing tightly of second lock, and the brake block is located and is played the effect that increases friction power between guide plate and first lock, the second lock is female, can be better compress tightly the guide plate. Synchronous gear plays the transmission effect, and the gear structure on first lock is female, the second lock is female realizes synchronous rotation through meshing mutually with synchronous gear, and first lock is female, the synchronous rotation of second lock is female and compresses tightly the baffle after rotating the knob, and the process that first lock of synchronous pivoted is female, the synchronous baffle that compresses tightly of second lock on the one hand can make the baffle atress even, and above-mentioned structure is more convenient in the operation on the one hand.
Preferably, in the chain saw adjusting device, a first slider is arranged between the first lock nut and the brake plate, a second slider is arranged between the second lock nut and the brake plate, a third slider is arranged between the first slider and the second slider, a first inclined plane is arranged on the first slider, a second inclined plane is arranged on the second slider, a third inclined plane and a fourth inclined plane are arranged on the third slider, the third inclined plane is matched with the first inclined plane, the fourth inclined plane is matched with the second inclined plane, a groove is arranged on the brake plate, the first slider, the second slider and the third slider are all arranged in the groove, and the first slider and the second slider are matched with side walls of the groove.
Because of slight errors in the thread machining process, height differences are inevitably generated in the matching process of the first stud and the first locking nut and the second stud and the second locking nut. Therefore, the first sliding block, the second sliding block and the third sliding block are arranged, and under the common matching of the side wall of the groove, the third inclined plane and the first inclined plane as well as the fourth inclined plane and the second inclined plane, the first sliding block and the second sliding block can respectively move up and down along the third inclined plane and the fourth inclined plane arranged on the third sliding block, so that the height difference caused by thread machining errors is compensated, the guide plate is better pressed, and the invention is more stable.
Preferably, the gear structure of the chainsaw adjusting apparatus includes a first gear and a second gear, the first gear is sleeved on the first locking nut, and the second gear is sleeved on the second locking nut.
The first gear and the second gear are arranged, so that the maintenance and the replacement are convenient, and the maintenance cost of the invention is reduced. The first gear and the second gear are respectively connected with the first locking nut and the second locking nut, so that the effects of transmission and driving of the first locking nut and the second locking nut to compress the guide plate are achieved.
Preferably, in the chainsaw adjusting device, the pressing device further includes a first positioning block and a second positioning block, the first positioning block is disposed at a lower end of the first gear and abuts against the first slide block, and the second positioning block is disposed at a lower end of the second gear and abuts against the second slide block.
The first positioning block has a limiting effect on the first gear, the second positioning block has a limiting effect on the second gear, the positions of the first gear and the second gear can be better limited, meanwhile, the first positioning block can prevent the first gear and the first lock nut from being in relative contact, and the second positioning block can prevent the second gear and the second lock nut from being in relative contact, so that the abrasion is reduced, and the service life of the gear lock is prolonged.
Preferably, the chain saw adjusting device further comprises a tensioning device, wherein the tensioning device comprises an adjusting gear, a tensioning rod and a tensioning pin, the adjusting gear is connected with the tensioning gear and coaxially rotates, the tensioning gear is meshed with the tensioning rod, an external thread structure is arranged on the tensioning rod, an internal thread structure is arranged on the tensioning pin, the tensioning rod and the tensioning pin are matched through the internal thread structure and the external thread structure, and the tensioning pin is matched with the guide plate.
Adjusting gear, tensioning rod, tensioning round pin mutually support and make the tensioning round pin remove on the tensioning rod, the tightness of saw blade on this moment the tensioning round pin can and the baffle cooperation control baffle to the convenience that the chain saw was adjusted has been promoted.
Preferably, the knob includes an inner knob and an outer knob, the inner knob and the outer knob are disposed on the same axial line, the inner knob is connected to the first lock nut and rotates synchronously with the first lock nut, and the outer knob is engaged with the adjusting gear.
The inner knob acts on the first locking nut to increase the force arm and facilitate rotation, the outer knob can drive the adjusting gear to rotate, and the structure of the inner knob and the structure of the outer knob can improve the space utilization rate, so that the appearance of the lock is more attractive and concise.
Preferably, the chain saw adjusting device further comprises a locking device, the locking device comprises a stop switch and a return spring, the stop switch and the return spring are matched to form a locking position and an unlocking position, the stop switch interferes with the rotation of the outer knob in the locking position, and the stop switch is not in contact with the outer knob in the unlocking position.
Locking device can lock outer knob, prevents that outer knob from taking place to rotate because the mistake touches and lead to the saw blade not hard up to take place to break away from with the baffle, and wherein the backstop switch is used for forming locking position and unblock position with outer knob cooperation, and reset spring plays the effect that the backstop switch switched at last locking position and unblock position to protect user's personal safety better.
Preferably, in the chainsaw adjusting apparatus described above, the inner knob is provided with a force applying rod, and the force applying rod is slidably connected to the inner knob.
The force applying rod is connected to the inner knob to increase the force arm, so that the inner knob can rotate more easily, and the brake plate is more stable to fix the guide plate.
Drawings
FIG. 1 is a schematic view of a knob according to the present invention;
FIG. 2 is a schematic structural view of a guide plate according to the present invention;
FIG. 3 is a schematic view of the tensioner of the present invention;
FIG. 4 is a cross-sectional view of the compression apparatus of the present invention;
FIG. 5 is a partial enlarged view of portion A of FIG. 4;
FIG. 6 is a cross-sectional view of the locking mechanism of the present invention in a locked position;
fig. 7 is an exploded view of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the accompanying figures 1-7 and the detailed description, but they are not intended to limit the invention:
example 1
A chain saw adjusting device comprises a cover plate 1, a guide plate 3, a knob 2 and a pressing device 4, wherein the knob 2 is connected with the pressing device 4, the pressing device 4 comprises a first stud 41, a second stud 42, a first lock nut 44, a second lock nut 45 and a brake plate 43, the first stud 41 and the second stud 42 penetrate through the guide plate 3, the first lock nut 44 and the second lock nut 45 are respectively connected onto the first stud 41 and the second stud 42 and are matched with the brake plate 43 to press the guide plate 3, the cover plate 1 is located below the knob 2 and covers the pressing device 4, the chain saw adjusting device further comprises a synchronizing gear 48, gear structures are arranged on the first lock nut 44 and the second lock nut 45, and the synchronizing gear 48 is respectively meshed with the first lock nut 44 and the second lock nut 45.
During installation, a first stud 41 and a second stud 42 sequentially penetrate through a guide plate 3 and a brake plate 43, the guide plate 3 and the brake plate 43 are connected to the first stud 41 and the second stud 42, then a first lock nut 44 and a second lock nut 45 are respectively connected to the first stud 41 and the second stud 42, a synchronous gear 48 is meshed with the first lock nut 44 and the second lock nut 45, finally a cover plate 1 covers a pressing device 4, and a knob 2 penetrates through the cover plate and is connected with the pressing device 4.
When the invention is used, the knob 2 is rotated to enable the first lock nut 44 and the second lock nut 45 to synchronously rotate under the action of the synchronous gear 48, and at the moment, the first lock nut 44 and the second lock nut 45 synchronously ascend or synchronously descend along the threads on the first stud 41 and the second stud 42 respectively and loosen or press the brake plate 43 and the guide plate 3.
Preferably, a first sliding block 411 is arranged between the first lock nut 44 and the braking plate 43, a second sliding block 421 is arranged between the second lock nut 45 and the braking plate 43, a third sliding block 49 is arranged between the first sliding block 411 and the second sliding block 421, a first inclined plane 412 is arranged on the first sliding block 411, a second inclined plane 422 is arranged on the second sliding block 421, a third inclined plane 491 and a fourth inclined plane 492 are arranged on the third sliding block 49, the third inclined plane 491 is matched with the first inclined plane 412, the fourth inclined plane 492 is matched with the second inclined plane 422, a groove 431 is arranged on the braking plate 43, the first sliding block 411, the second sliding block 421 and the third sliding block 49 are all arranged in the groove 431, and the first sliding block 411 and the second sliding block 421 are matched with the side wall of the groove 431.
Preferably, the gear structure includes a first gear 441 and a second gear 451, the first gear 441 is sleeved on the first lock nut 44, and the second gear 451 is sleeved on the second lock nut 45.
Preferably, the pressing device 4 further includes a first positioning block 46 and a second positioning block 47, the first positioning block 46 is disposed at the lower end of the first gear 441 and abuts against the first slider 411, and the second positioning block 47 is disposed at the lower end of the second gear 451 and abuts against the second slider 421.
Preferably, still include overspeed device tensioner 6, overspeed device tensioner 6 includes adjusting gear 61, tensioning gear 62, tensioning rod 63, tensioning round pin 64, adjusting gear 61 with tensioning gear 62 is connected and coaxial rotation, tensioning gear 62 with the meshing of tensioning rod 63, be equipped with the external screw thread structure on the tensioning rod 63, be equipped with the internal thread structure on the tensioning round pin 64, tensioning rod 63 passes through with tensioning round pin 64 internal thread structure, the cooperation of external screw thread structure, tensioning round pin 64 with the cooperation of baffle 3.
Preferably, the rotary knob 2 includes an inner rotary knob 21 and an outer rotary knob 22, the inner rotary knob 21 and the outer rotary knob 22 are disposed on the same axial line, the inner rotary knob 21 is connected to the first lock nut 44 and rotates synchronously with the first lock nut 44, and the outer rotary knob 22 is engaged with the adjusting gear 61.
Preferably, the locking device 5 further comprises a locking device 5, the locking device 5 comprises a retaining switch 51 and a return spring 52, the retaining switch 51 and the return spring 52 are matched to form a locking position and an unlocking position, the retaining switch 51 interferes with the rotation of the outer knob 22 in the locking position, and the retaining switch 51 and the outer knob 22 are not in contact with each other in the unlocking position.
Preferably, the inner knob 21 is provided with a force applying rod 211, and the force applying rod 211 is slidably connected with the inner knob 21.
When a user needs to press the guide plate 3, the inner knob 21 can be rotated clockwise to drive the first lock nut 44 to rotate coaxially, the first gear 441 on the first lock nut 44 drives the synchronizing gear 48 to rotate, the synchronizing gear 48 drives the second gear 451 to rotate, meanwhile, the first lock nut 44 and the second lock nut 45 respectively rotate clockwise along the first stud 41 and the second stud 42 and move downwards along the threads and respectively extrude the first positioning block 46 and the second positioning block 47, the first positioning block 46 and the second positioning block 47 respectively extrude the first sliding block 411 and the second sliding block 421, so that the first sliding block 411 and the second sliding block 421 jointly act on the brake plate 43 to press the guide plate 3.
When the height difference exists between the first locking nut 44 and the second locking nut 45, if the height of the first locking nut 44 is lower than that of the second locking nut 45, the first inclined surface 412 on the first slider 411 will abut against the third inclined surface 491 on the third slider 49, and at this time, the third slider 49 moves towards the second slider 421, so that the fourth inclined surface 492 abuts against the second inclined surface 422, and under the combined action of the side walls of the groove 431, the second slider 421 is lifted upwards to abut against the second locking nut 45, thereby filling the height difference between the first locking nut 44 and the second locking nut 45. On the contrary, if the height of the second lock nut 45 is lower than that of the first lock nut 44, the first slider 411 is lifted to fill the height difference between the first lock nut 44 and the second lock nut 45.
When a user needs to adjust the tightness of the saw blade, firstly, the retaining switch 51 is pressed to enable the retaining switch 51 to compress the return spring 52 to an unlocking position, then the outer knob 22 is rotated, the outer knob 22 drives the adjusting gear 61 to rotate, the adjusting gear 61 drives the tensioning gear 62 to rotate, the tensioning gear 62 drives the tensioning rod 63 to rotate, the tensioning rod 63 is matched with a thread structure on the tensioning pin 64, and the tensioning pin 64 is enabled to move left and right on the tensioning rod 63. The tensioning pin 64 controls the guide plate 3 to stretch and retract so as to adjust the tightness of the saw blade, and after the adjustment is completed, the retaining switch 51 is loosened to enable the retaining switch 51 to be located at the locking position.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.
Claims (8)
1. A chain saw adjusting device comprises a cover plate (1), a guide plate (3), a knob (2) and a pressing device (4), wherein the knob (2) is connected with the pressing device (4), the pressing device (4) comprises a first stud (41), a second stud (42), a first locking nut (44), a second locking nut (45) and a brake plate (43), the first stud (41) and the second stud (42) penetrate through the guide plate (3), the first locking nut (44) and the second locking nut (45) are respectively connected onto the first stud (41) and the second stud (42) and matched with the brake plate (43) to press the guide plate (3), the cover plate (1) is located below the knob (2) and covers the pressing device (4), and the chain saw adjusting device is characterized in that: still include synchronous gear (48), be equipped with gear structure on first lock mother (44), the second lock mother (45), synchronous gear (48) respectively with first lock mother (44), second lock mother (45) mesh mutually.
2. A chainsaw adjustment arrangement as set forth in claim 1 wherein: first slider (411) is arranged between first lock nut (44) and braking vane (43), second slider (421) is arranged between second lock nut (45) and braking vane (43), third slider (49) is arranged between first slider (411) and second slider (421), first inclined plane (412) is arranged on first slider (411), second inclined plane (422) is arranged on second slider (421), third inclined plane (491) and fourth inclined plane (492) are arranged on third slider (49), third inclined plane (491) is matched with first inclined plane (412), fourth inclined plane (492) is matched with second inclined plane (422), groove (431) is arranged on braking vane (43), first slider (411), second slider (421) and third slider (49) are arranged in groove (431), first slider (411), The second slider (421) cooperates with the side wall of the groove (431).
3. A chainsaw adjustment arrangement as set forth in claim 2 wherein: the gear structure comprises a first gear (441) and a second gear (451), wherein the first gear (441) is sleeved on the first lock nut (44), and the second gear (451) is sleeved on the second lock nut (45).
4. A chainsaw adjustment arrangement as set forth in claim 3 wherein: the pressing device (4) further comprises a first positioning block (46) and a second positioning block (47), the first positioning block (46) is arranged at the lower end of the first gear (441) and abutted against the first sliding block (411), and the second positioning block (47) is arranged at the lower end of the second gear (451) and abutted against the second sliding block (421).
5. A chainsaw adjustment arrangement as set forth in claim 1 wherein: still include overspeed device tensioner (6), overspeed device tensioner (6) are including adjusting gear (61), tensioning gear (62), tensioning rod (63), tensioning round pin (64), adjusting gear (61) with tensioning gear (62) are connected and coaxial rotation, tensioning gear (62) with tensioning rod (63) meshing, be equipped with the external screw thread structure on tensioning rod (63), be equipped with the internal thread structure on tensioning round pin (64), tensioning rod (63) pass through with tensioning round pin (64) internal thread structure, external screw thread structure cooperation, tensioning round pin (64) with guide plate (3) cooperation.
6. An adjustment device for a chain saw according to claim 5, wherein: the knob (2) comprises an inner knob (21) and an outer knob (22), the inner knob (21) and the outer knob (22) are arranged on the same axis, the inner knob (21) is connected with a first locking nut (44) and rotates synchronously with the first locking nut (44), and the outer knob (22) is meshed with the adjusting gear (61).
7. An adjustment device for a chain saw as set forth in claim 6, wherein: the locking device (5) comprises a retaining switch (51) and a return spring (52), the retaining switch (51) and the return spring (52) are matched to form a locking position and an unlocking position, the retaining switch (51) interferes with the rotation of the outer knob (22) under the locking position, and the retaining switch (51) is not in contact with the outer knob (22) under the unlocking position.
8. An adjustment device for a chain saw as set forth in claim 6, wherein: the inner knob (21) is provided with a force applying rod (211), and the force applying rod (211) is connected with the inner knob (21) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067974.7A CN111109040B (en) | 2020-01-21 | 2020-01-21 | Chain saw adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067974.7A CN111109040B (en) | 2020-01-21 | 2020-01-21 | Chain saw adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111109040A true CN111109040A (en) | 2020-05-08 |
| CN111109040B CN111109040B (en) | 2024-05-14 |
Family
ID=70492343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010067974.7A Active CN111109040B (en) | 2020-01-21 | 2020-01-21 | Chain saw adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111109040B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| CN201941047U (en) * | 2010-12-14 | 2011-08-24 | 浙江派尼尔机电有限公司 | Chain saw |
| CN203496055U (en) * | 2013-08-30 | 2014-03-26 | 浙江勃朗特工具有限公司 | Tool-free assembling, disassembling and tightening device for gasoline engine chain saw |
| CN204818278U (en) * | 2015-08-28 | 2015-12-02 | 弘大集团有限公司 | Quick tensioning locking device of chain saw saw chain |
| FI126648B (en) * | 2015-09-30 | 2017-03-31 | Ponsse Oyj | Chain saw and method of maneuvering the movements of a saw blade of it |
| CN208734822U (en) * | 2018-08-01 | 2019-04-12 | 苏州劲山电动工具有限公司 | A kind of chain saw tension wheel structure |
| CN211671721U (en) * | 2020-01-21 | 2020-10-16 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
-
2020
- 2020-01-21 CN CN202010067974.7A patent/CN111109040B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| CN201941047U (en) * | 2010-12-14 | 2011-08-24 | 浙江派尼尔机电有限公司 | Chain saw |
| CN203496055U (en) * | 2013-08-30 | 2014-03-26 | 浙江勃朗特工具有限公司 | Tool-free assembling, disassembling and tightening device for gasoline engine chain saw |
| CN204818278U (en) * | 2015-08-28 | 2015-12-02 | 弘大集团有限公司 | Quick tensioning locking device of chain saw saw chain |
| FI126648B (en) * | 2015-09-30 | 2017-03-31 | Ponsse Oyj | Chain saw and method of maneuvering the movements of a saw blade of it |
| CN208734822U (en) * | 2018-08-01 | 2019-04-12 | 苏州劲山电动工具有限公司 | A kind of chain saw tension wheel structure |
| CN211671721U (en) * | 2020-01-21 | 2020-10-16 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
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| CN111109040B (en) | 2024-05-14 |
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