CN100552595C - Pruner - Google Patents
Pruner Download PDFInfo
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- CN100552595C CN100552595C CNB2008100593779A CN200810059377A CN100552595C CN 100552595 C CN100552595 C CN 100552595C CN B2008100593779 A CNB2008100593779 A CN B2008100593779A CN 200810059377 A CN200810059377 A CN 200810059377A CN 100552595 C CN100552595 C CN 100552595C
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- Prior art keywords
- seesaw
- bowden cable
- pruner
- tie
- button
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- 239000002184 metal Substances 0.000 claims abstract description 18
- 238000013021 overheating Methods 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002559 palpation Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention discloses a kind of pruner, there are Bowden cable (7), vertical rod (12), switch jacking block (13), main button (2), seesaw (8) and microswitch (6) in its electric motor assembly (5) left side; There are arm-tie (10) and secondary button (4) in electric motor assembly (5) the right; Bowden cable (7) two ends are connected with the right-hand member of main button (2) and the left end of seesaw (8) respectively; Be connected with rigid metal bar (9) between seesaw (8) right-hand member and arm-tie (10) upper end; Arm-tie (10) and secondary button (3) lower end are hinged on the casing (11) simultaneously; Seesaw (8) slidably is enclosed within the vertical rod (12) that is with switch jacking block (13); Microswitch (6) is positioned at switch jacking block (13) top.The invention has the advantages that: not only only need the less power just can the opening and closing motor, and can also prevent to make driving member generation thermal deformation because of electric motor overheating.
Description
Technical field:
The present invention relates to a kind of pruner that branch, shrub or hedge etc. are pruned or repaired of being used for.
Background technology:
Consider that for safety factor prior art pruner great majority need both hands to operate simultaneously just to machine, promptly major and minor button must be realized linking and just can stir the microswitch in the casing and start pruner.The utility model patent that the name that the applicant authorized on June 30th, 2004 is called the security control mechanism of pruner just disclose a kind of forward and backward handgrip and all used Bowden cable (also can be described as the cable wire flexible axle) transmission to jointly control the structure of the pruner of machine, and it includes whether be installed in the interior microswitch of Top carry handle, be hinged on main button below the Top carry handle, be hinged on assistant the secondary button of an end and the driving lever that is hinged on main button inboard of control pruner motor work; Be supported with main push-button reset spring between described main button inboard and the Top carry handle; One end and the microswitch of described driving lever cooperates contact or separates, and its other end is fixedlyed connected with the pull head of cable wire one end; The pull head of the described cable wire other end is fixedlyed connected with secondary button after passing the flexible axle holder that is fixed in the casing; Thereby described cable wire is with a soft sleeve pipe outward and forms the cable wire flexible axle; Also be provided with guide rib in the described enclosure space, guide rib can play the guiding role to the layout of cable wire flexible axle.
It is main that prior art adopts Bowden cable to realize, there are following two weak points in actual applications in the pruner of secondary button interlock: 1, Bowden cable be a kind of can any direction bending with driving member around various more obstacles, in pruner, though Bowden cable can utilize the various parts of flexural property in getting over pruner of self to realize main, the interlock of secondary button, yet, because Bowden cable bending resistance big (especially its bending resistance is bigger after corrosion), and cooperate the driving lever that contacts or separate to be subjected to the arm of force of secondary button acting force far away with microswitch, thereby cause the user to have brought certain inconvenience to operation with bigger power ability opening and closing machine; 2, the motor in the pruner normal heating phenomenon can occur in the work for a long time, will invar silk flexible axle resistance when temperature is too high excessive and make the Bowden cable driving member and the working of plastics that is connected with Bowden cable stressed thermal deformation takes place and influences their normal gearings, thereby finally hinder the normal opening and closing of pruner, reduced the reliability that pruner uses.
Summary of the invention:
The technical problem to be solved in the present invention is, provide a kind of need to use the less power just can the opening and closing electric motor assembly, thereby driving member and other working of plastics of being connected with driving member are at the metapyretic stress deformation of machine when reducing machine works, effectively guarantee normally opening and closing of motor, improve the pruner of machine dependability.
Technical solution of the present invention is that a kind of pruner with following structure is provided: it comprises that left end is hinged on main button below the Top carry handle, assistant, secondary button and the microswitch that is electrically connected with electric machine assembly; The right-hand member of described main button is connected with an end of Bowden cable; The other end of described Bowden cable is connected the left end of seesaw; The right-hand member of described seesaw is connected with the left end of rigid metal bar; The right-hand member of described rigid metal bar is connected the upper end of arm-tie; The lower end of described arm-tie is hinged on the casing, and is connected with secondary button lower end; Described seesaw is enclosed within on the push rod slidably; Be with a switch jacking block on the push rod of seesaw top; Described microswitch is positioned at the top of switch jacking block; Described Bowden cable, push rod, switch jacking block, main button, seesaw and microswitch all are positioned at the left side of electric motor assembly; Described arm-tie and secondary button are positioned at the right of electric motor assembly.
After adopting above structure, compared with prior art, the present invention has the following advantages:
1, in pruner of the present invention, do not realize interlock owing to all use Bowden cable between main button and the secondary button, be to adopt a Bowden cable and rigid metal bar to realize interlock between the major and minor button simultaneously between them, and push rod, switch jacking block, main button, seesaw and microswitch all are positioned at the left side of electric motor assembly, therefore, the length that is connected the Bowden cable between main button right-hand member and the seesaw left end in the pruner of the present invention is very short, and its bend ratio is less, and its bending resistance compared with prior art reduces greatly; What then adopt between described seesaw right-hand member and the arm-tie upper end is that a rigid metal bar substitutes Bowden cable and realizes transmission, therefore there is not bending resistance between seesaw right-hand member and the arm-tie, and the setting of rigid metal bar makes seesaw also shortened greatly by the arm of force of secondary button acting force, so, when use pruner of the present invention, we only need to use just energy opening and closing electric motor assembly of less power;
2, because the rigid metal bar in the pruner of the present invention is can stressed generation thermal deformation, and because of the rigid metal bar to promote the power of seesaw very little, thereby make the plastics arm-tie that is connected with rigid metal bar connection stressed very little, can not make its stress deformation when hot; In addition, the transmission requirement that being connected between main knob and the seesaw adopts Bowden cable both can satisfy the handgrip different rotation angle, connect directly simple because of it again, bending resistance is also little, the user only need use just energy opening and closing electric motor assembly of less power, therefore at the normal adstante febre of electric motor assembly, driving member in the pruner of the present invention and working of plastics that is connected with the rigid metal bar such as arm-tie etc. since stressed be not very big, so be not easy to take place thermal deformation, therefore, pruner of the present invention has effectively guaranteed normally opening and closing of electric motor assembly, has improved the reliability that machine uses.
As a kind of improvement of the present invention, the middle part sliding fit of described Bowden cable is in Bowden cable guiding plate hole.The setting of Bowden cable guide plate has reduced the probability that Bowden cable bends effectively in transmission process, thereby has further improved the portability of opening and closing motor of the present invention, and promptly the user can use littler power to come the opening and closing motor.
As another kind of improvement the of the present invention, the right end portion of described Bowden cable is with a back-moving spring I; The lower end of described back-moving spring I is socketed on the projection of seesaw left end, and its upper end is connected on the switch jacking block.Being provided with of back-moving spring I can make Bowden cable no matter still can not remain tensioning state under the duty down in working order, thereby guarantees that Bowden cable can not come off from main button or seesaw.
Also have a kind of improvement as of the present invention, the top of described back-moving spring I is provided with a roller; Described roller is installed on the casing; Described roller right side closely contacts with Bowden cable.Roller the resistance of motion that can reduce Bowden cable is set, thereby further improve the portability of motor opening and closing in the pruner of the present invention, promptly the user can use littler power to come the opening and closing motor.
Description of drawings:
Fig. 1 is the sectional structure synoptic diagram of pruner of the present invention.
Fig. 2 is the structure for amplifying synoptic diagram of seesaw in the pruner of the present invention.
Shown in the figure: 1, Top carry handle, 2, main button, 3, assistant's handle, 4, secondary button, 5, electric machine assembly, 6, microswitch, 7, Bowden cable, 8, seesaw, 9, rigid metal bar, 10, arm-tie, 11, casing, 12, push rod, 13, the switch jacking block, 14, the Bowden cable guide plate, 15, back-moving spring I, 16, projection, 17, roller, 18, back-moving spring II, 19, through hole, 20, groove.
Specific embodiment:
The invention will be further described below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, in this specific embodiment, the left end of main button 2 be hinged on Top carry handle 1 below; The lower end of secondary button 4 is fixedly connected on the lower end of arm-tie 10, and the lower end of arm-tie 10 also is hinged on the casing 11 simultaneously, owing to fixedly connected with the lower end of arm-tie 10 in the lower end of secondary button 4, therefore the lower end of secondary button 4 also can be considered hinged with casing 11; The right-hand member of described main button 2 is connected with an end of Bowden cable 7, and the other end of Bowden cable 7 is connected the left end of seesaw 8; The right-hand member of described seesaw 8 is connected with the left end of rigid metal bar 9, and the right-hand member of rigid metal bar 9 is connected the upper end of arm-tie 10.In this specific embodiment, as shown in Figure 2, described seesaw 8 is similar to the driving lever in the prior art pruner, its effect is that microswitch 6 is produced acting force, thereby open or close the electric motor assembly 5 that is electrically connected with microswitch 6, be provided with through hole 19 in the middle of the described seesaw 8, seesaw 8 can slide up and down to be enclosed within on the push rod 12 by through hole 19, the left end of seesaw 8 is provided with a projection 16, described protruding 16 are provided with a groove that is communicated with 20 with seesaw 8, and the step that the left end that the other end of above-mentioned Bowden cable 7 is connected seesaw 8 refers to Bowden cable 7 other ends is stuck on the groove 20; Also be socketed with a switch on the push rod 12 and decide piece 13, switch is decided the top that piece 13 is positioned at seesaw 8; Described microswitch 6 is positioned at the top of switch jacking block 13.In this specific embodiment, described Bowden cable 7, push rod 12, switch jacking block 13, main button 2, seesaw 8 and microswitch 6 all are positioned at the left side of electric motor assembly 5; Described rigid metal bar 9 is positioned at the longitudinal middle part next door of electric motor assembly 5; Described arm-tie 10 and secondary button 4 are positioned at the right of electric motor assembly 5.
In this specific embodiment, the middle part sliding fit of described Bowden cable 7 is in the hole of Bowden cable guide plate 14; The right end portion of Bowden cable 7 is with a back-moving spring I 15; The lower end of described back-moving spring I 15 is enclosed within on the projection 16 of seesaw 8 left ends, its upper end is connected on the switch jacking block 13, because the step of Bowden cable 7 right-hand members is to be stuck in groove 20, so being provided with of back-moving spring I 15 can be placed Bowden cable 7 and skidded off from groove 20 and come off.In addition, the top of described back-moving spring I 15 is provided with a roller 17; Described roller 17 is installed on the casing 11; Described roller 17 right sides closely contact with Bowden cable 7, and promptly no matter Bowden cable 7 is in working order the time or all can not contact with roller 17 parts during duty, roller 17 the resistance of motion that can reduce Bowden cable 7 is set.
The principle of work of pruner of the present invention is:
1, when the moving main button 2 of user's individual palpation, main button 2 moves upward by the left end that Bowden cable 7 drives seesaw 8, because seesaw 8 has only left end to move upward, therefore the seesaw 8 of this moment can not driving switch be decided piece 13 and is moved upward, and can't apply an acting force to microswitch 6 thereby make switch decide piece 13;
2, when the moving secondary button 4 of user's individual palpation, secondary button 4 drives 9 motions of rigid metal bar by arm-tie 10, thereby the right-hand member that drives seesaw 8 moves upward, because seesaw 8 has only right-hand member to move upward, therefore the seesaw 8 of this moment can not driving switch be decided piece 13 and is moved upward, and can't apply an acting force to microswitch 6 thereby make switch decide piece 13;
3, when the user presses main button 2 and secondary button 4 simultaneously, because the two ends of seesaw 8 are all stressed, so seesaw 8 can integral body move upward, and decides piece 13 and moves upward thereby drive switch, and microswitch 6 applied an acting force, thereby make microswitch 6 open or close electric motor assembly 5.
Pruner of the present invention belongs to mechanical brake formula pruner; but the structure of being made up of main button 2, secondary button 4, Bowden cable 7, seesaw 8, rigid metal bar 9 and arm-tie 10 among the present invention is not limited to be used for mechanical brake formula pruner; it also can be used for electromagnetic brake formula pruner, so it falls into protection scope of the present invention equally.
Claims (4)
1, a kind of pruner, comprise the microswitch (6) that left end is hinged on the following main button (2) of Top carry handle (1), assistant's handle (3), secondary button (4) and is electrically connected with electric machine assembly (5), it is characterized in that: the right-hand member of described main button (2) is connected with an end of Bowden cable (7); The other end of described Bowden cable (7) is connected the left end of seesaw (8); The right-hand member of described seesaw (8) is connected with the left end of rigid metal bar (9); The right-hand member of described rigid metal bar (9) is connected the upper end of arm-tie (10); The lower end of described arm-tie (10) is hinged on the casing (11), and is connected with secondary button (4) lower end; Described seesaw (8) is enclosed within on the push rod (12) slidably; Be with a switch jacking block (13) on the push rod (12) of seesaw (8) top; Described microswitch (6) is positioned at the top of switch jacking block (13); Described Bowden cable (7), push rod (12), switch jacking block (13), main button (2), seesaw (8) and microswitch (6) all are positioned at the left side of electric motor assembly (5); Described arm-tie (10) and secondary button (4) are positioned at the right of electric motor assembly (5).
2, pruner according to claim 1 is characterized in that: the middle part sliding fit of described Bowden cable (7) is in Bowden cable guide plate (14) hole.
3, pruner according to claim 1 and 2 is characterized in that: the right end portion of described Bowden cable (7) is with a back-moving spring I (15); The lower end of described back-moving spring I (15) is socketed on the projection (16) of seesaw (8) left end, and its upper end is connected on the switch jacking block (13).
4, pruner according to claim 3 is characterized in that: the top of described back-moving spring I (15) is provided with a roller (17); Described roller (17) is installed on the casing (11); Described roller (17) right side closely contacts with Bowden cable (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100593779A CN100552595C (en) | 2008-01-25 | 2008-01-25 | Pruner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100593779A CN100552595C (en) | 2008-01-25 | 2008-01-25 | Pruner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101226415A CN101226415A (en) | 2008-07-23 |
| CN100552595C true CN100552595C (en) | 2009-10-21 |
Family
ID=39858449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100593779A Active CN100552595C (en) | 2008-01-25 | 2008-01-25 | Pruner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100552595C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102342222A (en) * | 2011-10-31 | 2012-02-08 | 宁波爱乐吉电动工具有限公司 | Pruning machine |
-
2008
- 2008-01-25 CN CNB2008100593779A patent/CN100552595C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101226415A (en) | 2008-07-23 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315191, No. 7, high voltage Road, Jiangshan hi tech park, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO ENERGY POWER TOOLS Co.,Ltd. Address before: 315191, No. 7, high voltage Road, Jiangshan hi tech park, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO AILEJI ELECTRIC TOOL Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |
Address after: 315191 No.50 Dongbei Road, Dongqiao Industrial Zone, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO ENERGY POWER TOOLS Co.,Ltd. Address before: 315191, No. 7, high voltage Road, Jiangshan hi tech park, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO ENERGY POWER TOOLS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080723 Assignee: Ningbo Aileji Electrical Appliance Co.,Ltd. Assignor: NINGBO ENERGY POWER TOOLS Co.,Ltd. Contract record no.: X2023980052617 Denomination of invention: Pruning machine Granted publication date: 20091021 License type: Common License Record date: 20231215 |
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| EE01 | Entry into force of recordation of patent licensing contract |