CN104756773A - Chain saw - Google Patents
Chain saw Download PDFInfo
- Publication number
- CN104756773A CN104756773A CN201410007025.4A CN201410007025A CN104756773A CN 104756773 A CN104756773 A CN 104756773A CN 201410007025 A CN201410007025 A CN 201410007025A CN 104756773 A CN104756773 A CN 104756773A
- Authority
- CN
- China
- Prior art keywords
- protection mechanism
- lock release
- chain saw
- groove
- draw
- 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
Landscapes
- Sawing (AREA)
Abstract
The invention relates to a chain saw. The chain saw comprises a housing, a working assembly which extends out of the housing and consists of a cutting element and a guide plate for supporting the cutting element, a power driving device which is positioned in the housing and used for driving the cutting element to move around the guide plate, an operating device which is positioned on the housing and used for operating the chain saw, and a protecting mechanism which is movably arranged relative to the housing, wherein the protecting mechanism has a first state that the cutting element can be completely stored and is limited to expose from the protecting mechanism to be closed, and a second state that the cutting element can be exposed from the protecting mechanism to be closed. The chain saw further comprises a locking releasing device for locking the protecting mechanism at the first state; the locking releasing device has at least two positions; when at the first position, the protecting mechanism is locked in the first state; when at the second position, the protecting mechanism is operable to be switched to the second state; the operating device is operated to drive the locking releasing device to be switched between the first position and the second position.
Description
Technical field
The present invention relates to a kind of power tool, especially relate to a kind of chain saw.
Background technology
At present, market occurs the multiple instrument pruned for plant, such as scissors is for pruning some relatively tiny branches and leaves.Pruner is also had to be commonly used to prune relative thick trees etc. with chain saw.
Traditional chain saw comprises a working head be made up of with the gripper shoe being used for supporting saw chain saw chain, and chain drives by motor, does cyclic rotation around gripper shoe; This type of chain saw also comprises the main handle being positioned at working head rear portion, the assist handle between working head and main handle.Chain saw usually in the front of assist handle, the rear of gripper shoe is provided with a baffle plate, when saw chain is encountered heavy load and is produced counter playing in cutting process, play in process chain saw is counter, baffle plate can be stopped by staff and produce corresponding motion, thus makes chain saw realize self-actuating brake; In addition, chain saw is usually also provided with can the braking mechanism of Non-follow control, when operator recognizes that in cutting process unsafe factor is about to produce; can brake by Non-follow control; to make saw chain shut down immediately, in order to avoid be subject to the injury of saw chain, thus keep the safety of operator.Chain saw ensures safety when operating by above-mentioned release mechanism, but said mechanism is passive-type, and safe effect is not good.
Meanwhile, the working head of chain saw is extending longitudinally along main direction, and during cutting work, working head is positioned at the front of operator, and saw chain runs up around gripper shoe, and workpiece has fragment to splash when the process of cutting, and is very easy to hurt operator.Also need to arrange a protection mechanism on working head, protection mechanism can cover working head, prevents it from causing danger for this reason.But current protection mechanism is simple connection.And protection mechanism can not avoid the danger because maloperation brings.Therefore protection mechanism still has the space of improvement.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of safety high and the chain saw of handled easily.
The present invention solves the technical scheme that prior art problem adopts: a kind of chain saw, comprising: housing, extend the work package of housing, work package has cutting element and supports the guide plate of cutting element, Power Drive Unit, is positioned at housing and drive cutting element is moved around guide plate, operating means, to be positioned on housing and for starting Power Drive Unit, protection mechanism, can relatively arrange actively by housing, protection mechanism has accommodates cutting element and restriction cutting element exposes and and cutting element cannot be allowed to expose from protection mechanism and by the second close state by the first close state from protection mechanism completely, wherein, chain saw also comprises the lock release of adjustable protection mechanism state, locking off-position has at least two positions, in primary importance, protection mechanism is locked in the first state, in the second place, protection mechanism is released and is in the second state, the exercisable drive lock release of operating means switches between the first position and the second position.
Preferably, the bearing pin that lock release comprises draw-in groove and can coordinate with draw-in groove, bearing pin inserts draw-in groove, and lock release is in primary importance, and bearing pin departs from draw-in groove, and lock release is in the second place.
Preferably, lock release comprises the abutting bar selectively abutting protection mechanism, and abut bar and abut protection mechanism, lock release is in primary importance, and abut bar and throw off abutting protection mechanism, lock release is in the second place.
Preferably, operating means comprises the startup main switch of Power Drive Unit and the safety switch for locking or unlock main switch.
Preferably, the exercisable control lock release of main switch switches between the first position and the second position.
Preferably, lock release comprises abutting bar, and the first end abutting bar selectively abuts protection mechanism, and main switch abuts the second end of relative first end of bar.
Preferably, abutting bar is the linkage with multiple pivot, presses main switch and makes the second end around the second center pivotable, thus drives the first end to abut protection mechanism around the first center rotating to throw off, and staggers and arrange in the first center and the second center.
Preferably, safety switch comprises the baffle plate between housing and work package, and the exercisable control lock release of baffle plate switches between the first position and the second position.
Preferably, lock release comprises draw-in groove, the bearing pin that can coordinate with draw-in groove and the bias piece of bias voltage bearing pin in draw-in groove, and described baffle plate operationally drives described bearing pin move into draw-in groove or leave draw-in groove.
Preferably, bearing pin is shaped on baffle plate, draw-in groove to be positioned on protection mechanism and the opening of draw-in groove towards baffle plate.
Preferably, baffle plate can around axis of rotation, and bearing pin and shaft parallel are arranged.
Preferably, the relative host shell pivotable of protection mechanism is arranged.
Preferably, the multiple adjacent sidewall that protection mechanism comprises roof and extends from roof, roof and multiple adjacent sidewall surround the protective zone that can receive work package completely, and protective zone has downward opening.
Compared with prior art, beneficial effect of the present invention is: by lock release protection mechanism is locked in and makes work package cannot by the first close state, by operating means, lock release is unlocked simultaneously, making it be switched to work package can by the second close state, thus operation chain saw is safer, easy to operate, the operation extra without the need to user controls.
Accompanying drawing explanation
Above-described object of the present invention, technical scheme and beneficial effect by the detailed description that can realize specific embodiments of the invention below, can describe and clearly obtain simultaneously by reference to the accompanying drawings.
Identical label in accompanying drawing and specification and symbol are for representing identical or equivalent element.
Fig. 1 is the schematic diagram of the chain saw with protection mechanism of the present invention.
Fig. 2 is the schematic diagram of the lock release of the first embodiment of the present invention.
Fig. 3 is that the lock release of the second embodiment of the present invention makes protection mechanism be in the schematic diagram of the first state.
Fig. 4 is that the lock release of the second embodiment of the present invention makes protection mechanism be in the schematic diagram of the second state.
Fig. 5 is that the lock release of the third embodiment of the present invention makes protection mechanism be in the schematic diagram of the first state.
Fig. 6 is that the lock release of the third embodiment of the present invention makes protection mechanism be in the schematic diagram of the second state.
1, chain saw 2, host shell 3, handle apparatus
4, work package 5, drive unit 6, main switch
7, safety switch 8, protection mechanism 9, lock release
10, operating means 11, baffle plate 12, connector
31, main handle 32, assist handle 41, guide plate
42, cutting element 51, power line 81, link
82, free end 83, pivotal axis 84, roof
85, sidewall 86, opening 91, sticking department
92, draw-in groove 93, bearing pin 94, connector
95, bar 111, rotating shaft 941, first end is abutted
942, the second end 943, central shaft 944, fork configuration
951, abutment end 952, trigger end 953, first center
954, the second center
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Be the chain saw 1 of one embodiment of the invention as shown in Figure 1 to Figure 2.Chain saw 1 comprises host shell 2.Host shell 2 roughly extends longitudinally.Host shell 2 is arranged handle apparatus 3.Work package 4 stretches out along the bearing of trend of host shell 2.Handle apparatus 3 comprises the rear portion that is positioned at host shell 2 and along host shell 2 main handle 31 extending longitudinally, and being positioned at the assist handle 32 of main handle 31 front, host shell 2 side, in cutting process, operator can grip main handle 31 and assist handle 32 performs bimanualness simultaneously.
The cutting element 42 that work package 4 comprises guide plate 41 and is installed on guide plate 41.In the present embodiment, cutting element 42 is the incisory chain of band, and this chain is installed on the periphery of guide plate 41, and can rotate around this guide plate 41.Be provided with drive unit 5 in host shell, what present embodiment adopted is electro-motor, host shell 2 is arranged the power line 51 that promising motor provides energy.The High Rotation Speed of motor is passed to cutting element 42 by transmission mechanism.Guide plate 41 is supported in host shell 2 relatively regularly, and chain moves around guide plate 41 high-speed circulating.Certainly, drive unit 5 of the present invention is not limited to electro-motor, can replace with fuel oil, compressed air engine etc.
Chain saw 1 also comprises the main switch 6 for accessory drive 5.Main switch 6 is arranged on host shell 2.When operator presses main switch 6, namely drive unit 5 is triggered startup, thus drives the cutting element 42 of work package 4 to start cut workpiece.Preferably, main switch 6 can be arranged on handle apparatus 3, especially on main handle 31.Like this when user's handling is lived on main handle 31, the finger of user can be touched easily and press main switch 6.Certainly, main switch 6 also can be arranged on the position of other convenient operations.In addition, chain saw 1 can also comprise the safety switch 7 of interlock main switch 6.Certainly in other embodiments, chain saw 1 also can not have safety switch 7.The effect of safety switch 7 prevents maloperation, promotes the safety of chain saw 1.Safety switch 7 can lock or remove main switch, thus reaches the operation of restriction main switch 6, avoid user some unintentionally situation finish drilling and make main switch 6, thus trigger drive unit 5 and cause danger.User needs first handling safety switch 7 to remove the restriction to main switch 6, then could operate main switch 6 and trigger drive unit 5.When safety switch 7 is not first operated, main switch 6 cannot be operated, and reaches the effect of safeguard protection.Safety switch 7 can be the operating parts carrying out pressing operations be positioned near main switch 6, also can be the baffle plate etc. of rotating operation.In the present invention, the device such as main switch 6, safety switch 7 all belongs to the specific embodiment of operating means 10.Operating means 10 is that user is used for maneuvering and control chain saw 1, and operating means 10 to be arranged on host shell 2 and for starting drive unit 5.Operating means 10 can structure to include numerous forms.
Chain saw 1 also comprises the protection mechanism 8 be arranged at above work package 4.Protection mechanism 8 at least has two states, and in a first state, work package 4 can all be covered by protection mechanism 8 effectively, and that is, protection mechanism 8 accommodates cutting element 42 completely in wherein.Under this state, protection mechanism 8 can produce good protective action to work package 4, avoids work package 4 couples of users to damage.And in the second condition, protection mechanism 8 is operatively moved thus makes work package 4 remove capped state, thus work package 4 is exposed operate.In a preferred embodiment, protection mechanism 8 is arranged on the outside of host shell 2.Protection mechanism 8 is extending longitudinally, and its bearing of trend is consistent with the bearing of trend of work package 4.Protection mechanism 8 is arranged relative to host shell 2 pivotable.One end of protection mechanism 8 is the link 81 be connected with host shell 2, and the other end is the free end 82 protruding from cutting element 42 front.Link 81 is provided with the pivotal axis 83 for pivotable.And the multiple adjacent sidewall 85 that protection mechanism 8 comprises roof 84 and extended by roof 84, roof 84 and multiple adjacent sidewall 85 surround the protective zone that can receive work package 4 completely, and protective zone has downward opening 86.Work package 4 just enters from this opening 86 or leaves the protective zone of protection mechanism 8.Preferably, roof 84 or the sidewall 85 of protection mechanism 8 are provided with opening, are convenient to the situation observing inner protective zone.
Chain saw 1 also comprises and to link with operating means 10 and to be connected the lock release 9 of protection mechanism 8.The effect of lock release 9 promotes safety, prevents maloperation.Lock release 9, between operating means 10 and protection mechanism 8, can pass to protection mechanism 8 the operation of operating means 10, thus triggers locking or unlock protection mechanism 8.Lock release 9 has at least two positions, primary importance and the second place.When primary importance, lock release 9 can be locked in the first state protection mechanism 8, and now due to the locking action of lock release 9, protection mechanism 8 can not be switched to the second state from the first state.Now protection mechanism 8 is in the first state all the time, i.e. the state that covered by protection mechanism 8 of work package 4.Work package 4 and subscriber separation can be opened like this, user can not touch work package 4 easily and produce dangerous.And because protection mechanism 8 is locked in the first state, also can not produce user and protection mechanism 8 is switched to because of careless the second state that work package 4 is exposed, may potential danger be caused like this.And when user need to expose protection mechanism 8 carry out work time, user can be switched to the second place lock release 9, under this position, lock release 9 removes the locking action to protection mechanism 8, thus easily protection mechanism 8 operation transformation to the second state.Further, in order to better lifting operation convenience and the object that simplifies the internal structure of an organization, lock release 9 can to link design with operating means 10.The switching between the first position and the second position of lock release 9 can be realized by operating means 10.Because operating means 10 is that chain saw 1 must operate in use, therefore just can be controlled locking or the release of lock release 9 by operation operating means 10, thus avoid extra operation.
In the first embodiment as shown in Figure 2, the bearing pin 93 that the sticking department 91 of lock release 9 comprises draw-in groove 92, can coordinate with draw-in groove 92.When bearing pin 93 inserts in draw-in groove 92, lock release 9 is in primary importance, and lock release 9 is in the second place when bearing pin 93 departs from draw-in groove 92.And operating means 10 comprises the baffle plate 11 between host shell 2 and work package 4.And preferably, baffle plate 11 is positioned at the front of handle apparatus 3, namely between handle apparatus 3 and work package 4.The exercisable control lock release 9 of baffle plate 11 switched before primary importance and the second place.When bearing pin 93 clamping enters draw-in groove 92, baffle plate 11 is positioned at position of readiness, and protection mechanism 8 is in the position being positioned at the first state, as baffle plate in Fig. 2 11 be positioned at dotted line position time.Due to the position-limiting action of baffle plate 11, protection mechanism 20 cannot be moved, and such work package 4 is in all the time cannot by close state.When bearing pin 93 departs from from draw-in groove 92, baffle plate 11 creates movement relative to position of readiness, thus makes baffle plate 11 relieve position-limiting action to protection mechanism 8.Now protection mechanism 8 can be switched to the second state from the first state easily.Therefore, locking protection mechanism 8 can be realized in the first state or discharge it to the second state by controlling the movement of baffle plate 11.And the action operating baffle plate 11 is the necessary action of the routine of operation chain saw 1.Therefore user can realize to protection mechanism 8 by normal routine operation security control.In the present embodiment, baffle plate 11 connects the braking mechanism of chain saw 1.Under normal operation, when baffle plate 11 is positioned at position of readiness, there is braking action in braking mechanism.Now chain saw 1 cannot carry out work.User operation baffle plate is needed to produce displacement, the braking action of braking mechanism disappears, and now chain saw 1 can carry out work, has also unlocked protection mechanism 8 to the operation of this baffle plate 11 simultaneously, protection mechanism 8 switches to the second state, as baffle plate 11 in such as Fig. 2 be positioned at solid line position time.And draw-in groove 92 is arranged on protection mechanism 8, preferably, draw-in groove 92 is arranged on the link 81 of protection mechanism 8.And bearing pin 93 is arranged on baffle plate 11 regularly.Preferably, bearing pin 93 can be one-body molded with baffle plate 11.Baffle plate 11 can be arranged to around rotating shaft 111 rotating operation.The rotational plane of the bearing of trend vertical baffle 11 of bearing pin 93.The bearing of trend of bearing pin 93 is parallel with the bearing of trend of rotating shaft 111.Bearing pin 93 moves into the opening of draw-in groove 92 in the Normal plane of its bearing of trend vertical.The opening of draw-in groove 92 is arranged towards baffle plate 11.Draw-in groove 92 is preferably arranged to the deep-slotted chip breaker laterally holding bearing pin 93, to coordinate the bearing pin 93 on baffle plate 11 and baffle plate 11.
In the second embodiment as shown in Figure 3 and Figure 4, operating means 10 comprises the handle apparatus 3 be positioned in body shell 2.Preferably, the assist handle 32 being positioned at main handle 31 front is referred to.Lock release 9 is arranged near handle apparatus 3, and make user when gripping handle apparatus 3, the sticking department 91 of lock release 9 comprises draw-in groove 92 and bearing pin 93.And lock release 9 also comprises can the connector 94 of attended operation device 10.Connector 94 passes to sticking department 91 the operational movement of operating means 10, makes sticking department 91 lock or discharge.Connector 94 is positioned at the inside of host shell 2.Connector 94 is arranged to the depression bar rotated around central shaft 943.Depression bar has the first end 941 and the second end 942 that are oppositely arranged.The rotating shaft of depression bar is between first end 941 and the second end 942.The first end 941 of depression bar is arranged on the inside of host shell 2, and abuts with sticking department 91.Second end 942 of depression bar then extends preferably to the outside of host shell 2, and is positioned at the position near operating means 10.Preferably, 5 ~ 10 millimeter are interposed between the distance between the second end 942 of depression bar and operating means 10.Like this when user's control operation device 10, nature can touch the second end 942 of depression bar.And the first end 941 of depression bar is provided preferably with fork configuration 944.Fork configuration 944 can be fixedly connected with sticking department 91, is preferably fixedly connected with one end of bearing pin 93.In the present embodiment, draw-in groove 92 is positioned on protection mechanism 8, and is preferably located in the link 81 of protection mechanism 8.When bearing pin 93 clamping enters draw-in groove 92, protection mechanism 8 is locked in the first state, and work package 4 is in all the time cannot by close state.And when bearing pin 93 departs from from draw-in groove 92, protection mechanism 8 is spacing by releasing, now protection mechanism 8 can be switched to the second state from the first state.And bearing pin 93 will be made to depart from from draw-in groove 92, drive bearing pin 93 to detach draw-in groove 92 by operating means 10 and connector 94.Particularly, grip the handle apparatus 3 on operating means 10 when the hand of user, the second end 942 that hand can extrude depression bar makes depression bar produce rotation to a certain degree, thus band is dynamically connected, the bearing pin 93 of depression bar first end 941 spins off from draw-in groove 92.In the present embodiment, the direction that hand extruding depression bar makes depression bar rotate is the direction that depression bar as shown in Figure 4 rotates counterclockwise around central shaft 943.Those skilled in the art predictably, also can be arranged to hand operated and the bearing of trend of draw-in groove 92 is parallel to each other with the bearing of trend of work package 4.Draw-in groove 92 is roughly positioned at the link 81 of protection mechanism 8.And the bearing of trend of bearing pin 93 is also consistent with the bearing of trend of draw-in groove 92.
In the 3rd embodiment as shown in Figure 5 and Figure 6, operating means 10 comprises main switch 6.By the operation to main switch 6, locking protector 9 is driven to switch between the first position and the second position.Thus control locking or the protection mechanism 8 that unlocks.In the present embodiment, lock release 9 comprises abutting bar 95.Abutting bar 95 is arranged in host shell 2, preferably, abuts bar 95 and can be arranged in handle apparatus 3.Abutting bar 95 can be the mechanism such as three connecting rods or double leval jib.The first end abutting bar 95 is set to abutment end 951, locks protection mechanism 8 in the first state for abutting with protection mechanism 8.The second end that relative first end abutting bar 95 is arranged is set to trigger end 952, for abutting with main switch 6 and triggering the abutment end 951 abutting bar 95.When user does not press main switch 6, because abutment end 951 is connected on protection mechanism 8 all the time, preferably, be connected to the link 81 of protection mechanism 8.Protection mechanism 8 is locked in the first state.As shown in Figure 6, when user presses main switch 6 in the direction of the arrow, the trigger end 952 abutting main switch 6 can produce certain displacement along with main switch 6, and preferably, the form of expression of this displacement is that trigger end 952 carries out pivotable.Then through abutting the gearing of bar 95, the abutment end 951 abutting bar 95 being thrown off and abuts protection mechanism 8.Then now protection mechanism 8 just can light switching state.Equally preferably, the abutment end 951 abutting bar 95 shows as to rotate and abuts protection mechanism 8 to throw off.In the present embodiment, abut bar 95 and be preferably designed for pivotable linkage.Linkage has multiple pivoting centre, the control that can conveniently be locked protection mechanism by the operation of main switch 6 or unlock.Pressing main switch 6 can make the trigger end 952 of linkage around the second center 954 pivotable, thus the abutment end 951 of drivening rod mechanism rotates around the first center 953 to throw off abutting protection mechanism 8, wherein stagger and arrange in the present embodiment in the first center 953 and the second center 954, and chain saw 1 also comprises the safety switch 7 of interlock main switch 6.Safety switch 7 is connected on main switch 6 by some connectors 12.Main switch 6 cannot be pressed due to the effect of connector 12 at ordinary times.Just main switch 6 can be pressed after only having first handling safety switch 7.Safety switch 7 can be the baffle plate between handle apparatus 3 and protection mechanism 8.
The present invention is not limited to lifted specific embodiment structure, and the structure based on the present invention's design all belongs to scope.
Claims (13)
1. a chain saw, comprising:
Housing;
Extending longitudinally go out the work package of described housing, described work package has cutting element and supports the guide plate of described cutting element;
Power Drive Unit, is positioned at described housing and drives described cutting element to move around described guide plate; Operating means, is arranged on the housing and for starting described Power Drive Unit;
Protection mechanism, can relatively arrange actively by housing, described protection mechanism has to accommodate described cutting element completely and limit described cutting element and exposes from described protection mechanism and and described cutting element cannot be allowed to expose from described protection mechanism and by the second close state by the first close state
It is characterized in that: described chain saw also comprises the lock release of protection mechanism state described in adjustable, described locking off-position has at least two positions, in primary importance, described protection mechanism is locked in the first state, in the second place, described protection mechanism is released and is in the second state, and the described lock release of the exercisable drive of described operating means switches between the first position and the second position.
2. chain saw according to claim 1, it is characterized in that: the bearing pin that described lock release is draw-in groove and can coordinates with described draw-in groove, described bearing pin inserts described draw-in groove, described lock release is in described primary importance, described bearing pin departs from described draw-in groove, and described lock release is in the described second place.
3. chain saw according to claim 1, it is characterized in that: described lock release is the abutting bar selectively abutting described protection mechanism, described abutting bar abuts described protection mechanism, described lock release is in described primary importance, the described protection mechanism of abutting thrown off by described abutting bar, and described lock release is in the described second place.
4. chain saw according to claim 1, is characterized in that: described operating means comprises and starts the main switch of described Power Drive Unit and the safety switch for locking or unlock described main switch.
5. chain saw according to claim 4, is characterized in that: the described lock release of the exercisable control of described main switch switches between the first position and the second position.
6. chain saw according to claim 5, it is characterized in that: described lock release comprises abutting bar, first end of described abutting bar selectively abuts described protection mechanism, and described main switch abuts the second end of relatively described first end of described abutting bar.
7. chain saw according to claim 6, it is characterized in that: described abutting bar is the linkage with multiple pivot, pressing described main switch makes described second end around the second center pivotable, thus driving described first end to abut described protection mechanism around the first center rotating to throw off, stagger and arrange in the first center and the second center.
8. chain saw according to claim 4, is characterized in that: described safety switch comprises the baffle plate between described housing and described work package, and the described lock release of the exercisable control of described baffle plate switches between the first position and the second position.
9. chain saw according to claim 8, it is characterized in that: described lock release comprises the bias piece of bearing pin in described draw-in groove described in draw-in groove, the bearing pin that can coordinate with described draw-in groove and bias voltage, described baffle plate operationally drives described bearing pin move into described draw-in groove or leave described draw-in groove.
10. chain saw according to claim 9, is characterized in that: described bearing pin is shaped on described baffle plate, described draw-in groove to be positioned on described protection mechanism and the opening of described draw-in groove towards described baffle plate.
11. chain saws according to claim 10, is characterized in that: described baffle plate can around axis of rotation, and described bearing pin and described shaft parallel are arranged.
12. chain saws according to claim 1, is characterized in that: the relatively described housing pivotable of described protection mechanism is arranged.
13. chain saws according to claim 1, it is characterized in that: the multiple adjacent sidewall that described protection mechanism comprises roof and extends from roof, described roof and multiple adjacent sidewall surround the protective zone that can receive work package completely, and described protective zone has downward opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007025.4A CN104756773A (en) | 2014-01-08 | 2014-01-08 | Chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007025.4A CN104756773A (en) | 2014-01-08 | 2014-01-08 | Chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104756773A true CN104756773A (en) | 2015-07-08 |
Family
ID=53639165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007025.4A Pending CN104756773A (en) | 2014-01-08 | 2014-01-08 | Chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104756773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237086A (en) * | 2019-07-16 | 2021-01-19 | 南京德朔实业有限公司 | Hand-push type power tool |
| CN113580290A (en) * | 2021-07-30 | 2021-11-02 | 江苏东成工具科技有限公司 | Chain saw |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6560873B1 (en) * | 1999-11-12 | 2003-05-13 | Mel Wayne Ortner | Automatic safety knife |
| CN1575630A (en) * | 2003-07-14 | 2005-02-09 | 百得有限公司 | Vegetation pruning device |
| CN201760667U (en) * | 2010-06-28 | 2011-03-16 | 南京德朔实业有限公司 | Miter saw |
| JP2012105647A (en) * | 2011-11-30 | 2012-06-07 | Husqvarna Ab | Chain saw device |
| CN202857378U (en) * | 2012-10-26 | 2013-04-10 | 浙江三锋实业股份有限公司 | Chain saw |
| CN104285694A (en) * | 2013-07-19 | 2015-01-21 | 苏州宝时得电动工具有限公司 | Chain saw |
-
2014
- 2014-01-08 CN CN201410007025.4A patent/CN104756773A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6560873B1 (en) * | 1999-11-12 | 2003-05-13 | Mel Wayne Ortner | Automatic safety knife |
| CN1575630A (en) * | 2003-07-14 | 2005-02-09 | 百得有限公司 | Vegetation pruning device |
| CN201760667U (en) * | 2010-06-28 | 2011-03-16 | 南京德朔实业有限公司 | Miter saw |
| JP2012105647A (en) * | 2011-11-30 | 2012-06-07 | Husqvarna Ab | Chain saw device |
| CN202857378U (en) * | 2012-10-26 | 2013-04-10 | 浙江三锋实业股份有限公司 | Chain saw |
| CN104285694A (en) * | 2013-07-19 | 2015-01-21 | 苏州宝时得电动工具有限公司 | Chain saw |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237086A (en) * | 2019-07-16 | 2021-01-19 | 南京德朔实业有限公司 | Hand-push type power tool |
| CN113580290A (en) * | 2021-07-30 | 2021-11-02 | 江苏东成工具科技有限公司 | Chain saw |
| CN113580290B (en) * | 2021-07-30 | 2023-03-03 | 江苏东成工具科技有限公司 | Chain saw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101084723B (en) | Scissors type pruning shear | |
| CN102528155B (en) | Electric circular saw provided with switch protection mechanism | |
| NO133964B (en) | ||
| CN104756773A (en) | Chain saw | |
| EP1506705B1 (en) | Safety mechanism for power tool and power tool incorporating such mechanism | |
| CN104285694B (en) | Chain saw | |
| CN102811845B (en) | Guard means for a saw and method of use thereof | |
| KR102016292B1 (en) | Portable Motorized Scissors | |
| KR101535295B1 (en) | Pruning shears | |
| CN201493556U (en) | Hand-held circular saw guard shield safe locking mechanism | |
| CN101098621B (en) | Tool comprising drive device and start and/or brake | |
| CN1315612C (en) | Electrical working machine | |
| CN201493555U (en) | Hand-held circular saw guard shield mechanism | |
| CN110125882B (en) | Switch device for electrically driven garden tool | |
| CN201760667U (en) | Miter saw | |
| CN202479602U (en) | Electric circular saw with switch protecting mechanism | |
| CN201069928Y (en) | Scissors type lopping shears | |
| AU2004203547B2 (en) | Latch mechanism for pivoting handle assembly of a power tool | |
| CN104742095B (en) | Electric circular saw | |
| CN203471902U (en) | Band sawing machine protection device | |
| CN208195784U (en) | A kind of Novel cutting machine | |
| CN205057177U (en) | Electric circular saw with activity protection casing | |
| CN103846499B (en) | Reciprocating sow | |
| CN112602483A (en) | Branch sawing machine | |
| CN105269067A (en) | Electric circular saw with movable protection cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
|
| RJ01 | Rejection of invention patent application after publication |