CN105918072A - Chain saw - Google Patents
Chain saw Download PDFInfo
- Publication number
- CN105918072A CN105918072A CN201610439670.2A CN201610439670A CN105918072A CN 105918072 A CN105918072 A CN 105918072A CN 201610439670 A CN201610439670 A CN 201610439670A CN 105918072 A CN105918072 A CN 105918072A
- Authority
- CN
- China
- Prior art keywords
- chain saw
- clamp nut
- guide plate
- protective cover
- limited step
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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. The chain saw comprises a guide plate for the chain saw, a shell, a protection cover mounted on the shell, and at least one fastening bolt fixed to the shell. Each fastening bolt is provided with a first limiting step. Threads are arranged on the upper portions of the first limiting steps. Fastening nuts are assembled to the fastening bolts. The distances H1 from bottom threads of the fastening nuts to the bottoms of the nuts are smaller than the distances H3 from the first limiting steps to the guide plate during assembly. The chain saw has the advantages of capability of preventing the chain saw from being used without mounting of the protection cover and from injuring operators, simple structure, safety and reliability.
Description
Technical field
The present invention relates to garden instrument field, particularly relate to a kind of chain saw.
Background technology
A kind of felling tool chain saw, obtain domestic and international lumberman extensively to use, expansion due to product market, a lot of chain saw kinds have obtained the favor of DIY unprofessional user in the market, hurt sb.'s feelings to reduce sprocket at full speed, it is desirable to chain saw sprocket, guide plate fastening means must not normally use in the case of unprotected.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of chain saw, it is possible to prevent from directly using chain saw when not installing protective cover, and simple in construction is safe and reliable.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of chain saw, including for guide plate, housing and the protective cover being arranged on housing of chain saw, at least one fastening bolt being fixed on housing, there is in described fastening bolt the first limited step, the top of described first limited step is screw thread, described fastening bolt is equipped with clamp nut, and distance H1 bottom the bottom thread of clamp nut to nut is less than distance H3 when the first limited step to guide plate assembles.Under this kind of structure, if operator does not installs protective cover, use clamp nut resting guide, owing to H1 is less than H3, when clamp nut screws, at the first limited step, just halt, it is impossible to guide plate is fastened, it is to avoid operator starts chain saw in the case of unshielded cover.
In a currently preferred scheme, distance H1 bottom the bottom thread of described clamp nut to nut is less than the height H2 of tight bushing.Protective cover can tightly be pushed down by so clamp nut, it is to avoid the impact on fastening of the bottom of clamp nut.
Distance H3 in a currently preferred scheme, when the height H2 of described tight bushing assembles more than the first limited step to guide plate.
In a currently preferred scheme, described clamp nut having protruding rib, described protruding rib is used for applying forces to tight bushing, with fixing chain saw guide plate.Protruding rib can be also used for strengthening lifting surface area, prevents pressure excessive, damages protective cover.
In a currently preferred scheme, described protective cover is provided with tight bushing, and described tight bushing is provided with the axle-steel silk back-up ring for preventing clamp nut from coming off.Axle-steel silk back-up ring is possible to prevent clamp nut to come off from protective cover.
In a currently preferred scheme, the bottom thread terminated line of described clamp nut and the bottom of projection rib are positioned on straight line.
The invention has the beneficial effects as follows: chain saw of the present invention, it is possible to prevent from directly using chain saw when not installing protective cover, simple in construction, safe and reliable.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of chain saw one of the present invention preferred embodiment；
Fig. 2 is the partial structurtes schematic diagram of Fig. 1；
Fig. 3 is the structural representation of chain saw shown in Fig. 1；
Fig. 4 is the partial structurtes schematic diagram of Fig. 1；
Fig. 5 is the partial structurtes schematic diagram of Fig. 1；
In accompanying drawing, the labelling of each parts is as follows: 1, housing, and 2, protective cover, 3, fastening bolt, 4, chain saw, 5, clamp nut, the 6, first limited step, the 7, second limited step, 8, protruding rib, 9, tight bushing, 10, axle-steel silk back-up ring.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, a kind of chain saw, including for guide plate 4, housing 1 and the protective cover 2 being arranged on housing of chain saw, fastening bolt 3 that at least one is fixed on housing, there is in described fastening bolt the first limited step 6, the top of described first limited step 6 is screw thread, described fastening bolt 3 is equipped with clamp nut 5, and distance H1 bottom the bottom thread of clamp nut 5 to nut is less than distance H3 when the first limited step to guide plate 4 assembles.Under this kind of structure, if operator does not installs protective cover, use clamp nut resting guide, owing to H1 is less than H3, when clamp nut screws, at the first limited step, just halt, it is impossible to guide plate is fastened, it is to avoid operator starts chain saw in the case of unshielded cover.
The bottom thread of clamp nut 5 is less than the height H2 of tight bushing to distance H1 bottom nut.Protective cover 2 can tightly be pushed down by so clamp nut 5, prevents clamp nut 5 bottom from propping up guide plate 4, causes protruding rib 8 cannot be compacted tight bushing 9, it is to avoid the impact on fastening effect of the bottom of clamp nut.
Distance H3 when the height H2 of tight bushing assembles more than the first limited step to guide plate.
Having protruding rib on clamp nut, described protruding rib is used for applying forces to tight bushing, with fixing chain saw guide plate.Protruding rib can be also used for strengthening lifting surface area, prevents pressure excessive, damages protective cover.
Protective cover is provided with tight bushing, and described tight bushing is provided with the axle-steel silk back-up ring for preventing clamp nut from coming off.Axle-steel silk back-up ring is possible to prevent clamp nut to come off from protective cover.
The bottom thread terminated line of described clamp nut and the bottom of projection rib are positioned on straight line.
Housing 1 tightens fastening fixing bolt 3 and defines guide plate installation pedestal, to facilitate protective cover 2 location and installation.Protective cover 2 is to be relatively isolated with operator by chain saw, it is to avoid operator starts in the case of not installing completely by mistake, reduces sprocket at full speed wound and hits the probability of people.Tight bushing 9 is fixed on protective cover 2, adding protruding rib 8 design on clamp nut 5 is to allow clamp nut 5 empty set have rotation and up and down motion condition on tight bushing, clamp nut 5 is limited on tight bushing 9 and does not falls off by axle-steel silk back-up ring 10, axial displacement can be produced when clamp nut 5 is fastened on fastening bolt 3 on housing 1, and protective cover 2 is motionless, so can operationally make user installation convenient first with on the guide plate press-assembling surface precompressed guide plate on protective cover 2 when installing chain saw.Fastening bolt 3 is provided with the second limited step 7, this position is higher than the relative altitude after chain saw 4 installation, in order to prevent user from using the fastening of general nut to install chain saw 4 in the case of there is no protective cover 2, being additionally provided with the first limited step 6 in fastening bolt 3, what the first limited step 6 limited clamp nut 5 moves down distance.
It is different from prior art, chain saw of the present invention, it is possible to prevent from directly using chain saw when not installing protective cover, simple in construction, safe and reliable.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (6)
1. a chain saw, including
For chain saw guide plate,
Housing,
With the protective cover being arranged on housing,
At least one is fixed on the fastening bolt on housing;
It is characterized in that, there is in described fastening bolt the first limited step, the top of described first limited step is screw thread, and described fastening bolt is equipped with clamp nut, and distance H1 bottom the bottom thread of clamp nut to nut is less than distance H3 when the first limited step to guide plate assembles.
Chain saw the most according to claim 1, it is characterised in that distance H1 bottom the bottom thread of described clamp nut to nut is less than the height H2 of tight bushing.
Chain saw the most according to claim 2, it is characterised in that the distance H3 when height H2 of described tight bushing assembles more than the first limited step to guide plate.
Chain saw the most according to claim 1, it is characterised in that have protruding rib on described clamp nut, described protruding rib is used for applying forces to tight bushing, with fixing chain saw guide plate.
Chain saw the most according to claim 1, it is characterised in that described protective cover is provided with tight bushing, described tight bushing is provided with the axle-steel silk back-up ring for preventing clamp nut from coming off.
Chain saw the most according to claim 1 is characterized in that, the bottom thread terminated line of described clamp nut and the bottom of projection rib are positioned on straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439670.2A CN105918072A (en) | 2016-06-20 | 2016-06-20 | Chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439670.2A CN105918072A (en) | 2016-06-20 | 2016-06-20 | Chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105918072A true CN105918072A (en) | 2016-09-07 |
Family
ID=56831240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610439670.2A Pending CN105918072A (en) | 2016-06-20 | 2016-06-20 | Chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105918072A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724201A (en) * | 2005-06-23 | 2006-01-25 | 孙鹤鸣 | Motor-operated chain saw |
| CN100999029A (en) * | 2006-01-09 | 2007-07-18 | 孙鹤鸣 | Mechanical chain saw |
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| CN101821067A (en) * | 2007-10-12 | 2010-09-01 | 胡斯华纳有限公司 | Attaching arrangement for hand-held motor-driven tools |
| CN102198540A (en) * | 2010-03-25 | 2011-09-28 | 安德烈亚斯.斯蒂尔两合公司 | Chain saw |
| CN104889946A (en) * | 2013-12-02 | 2015-09-09 | 株式会社牧田 | fastening arrangement, portable working tool and method of fastening a first housing section to a second housing section |
| CN204975540U (en) * | 2015-07-27 | 2016-01-20 | 上虞市冠业电器有限公司 | Electric chain saw of chain integration locking |
| CN205727382U (en) * | 2016-06-20 | 2016-11-30 | 常州格力博有限公司 | Chain saw |
-
2016
- 2016-06-20 CN CN201610439670.2A patent/CN105918072A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724201A (en) * | 2005-06-23 | 2006-01-25 | 孙鹤鸣 | Motor-operated chain saw |
| CN100999029A (en) * | 2006-01-09 | 2007-07-18 | 孙鹤鸣 | Mechanical chain saw |
| CN101821067A (en) * | 2007-10-12 | 2010-09-01 | 胡斯华纳有限公司 | Attaching arrangement for hand-held motor-driven tools |
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| CN102198540A (en) * | 2010-03-25 | 2011-09-28 | 安德烈亚斯.斯蒂尔两合公司 | Chain saw |
| CN104889946A (en) * | 2013-12-02 | 2015-09-09 | 株式会社牧田 | fastening arrangement, portable working tool and method of fastening a first housing section to a second housing section |
| CN204975540U (en) * | 2015-07-27 | 2016-01-20 | 上虞市冠业电器有限公司 | Electric chain saw of chain integration locking |
| CN205727382U (en) * | 2016-06-20 | 2016-11-30 | 常州格力博有限公司 | Chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213000 Jiangsu province Changzhou Xingang Tower Road Economic Development Zone No. 65-1 Applicant after: Gelibo (Jiangsu) Co.,Ltd. Address before: 213023 Jiangsu city in Changzhou Province Economic Development Zone Xingang Zhonglou District Tower Road No. 65 Applicant before: CHANGZHOU GLOBE Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
|
| RJ01 | Rejection of invention patent application after publication |