CN103891533A - Pruning shears - Google Patents
Pruning shears Download PDFInfo
- Publication number
- CN103891533A CN103891533A CN201210585769.5A CN201210585769A CN103891533A CN 103891533 A CN103891533 A CN 103891533A CN 201210585769 A CN201210585769 A CN 201210585769A CN 103891533 A CN103891533 A CN 103891533A
- Authority
- CN
- China
- Prior art keywords
- back handle
- trigger
- shrub
- handle shell
- spring leaf
- 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.)
- Granted
Links
Images
Landscapes
- Harvester Elements (AREA)
Abstract
The invention relates to pruning shears which comprise a machine shell, a front handle and a rear handle. The front handle and the rear handle are connected with the machine shell respectively, the rear handle comprises a rear handle shell and a switch control trigger mounted to the rear handle shell, the switch control trigger comprises a trigger mounted on the rear handle shell, a rotating shaft mounted in the rear handle shell and an elastic device rotatably connected to the rotating shaft, and the trigger is provided with a pushing portion pushing the elastic device to rotate. In a trigger control mechanism of the rear handle, the trigger is used to operate the elastic device to rotate to contact with a micro switch; when the trigger is insufficient in stroke, the trigger is enabled to be still capable of maintaining contact with the micro switch due to elastic action of the elastic device, so that random interruption of a circuit is avoided, and the trigger control mechanism of the rear handle is enabled to have a stroke compensation function.
Description
Technical field
The present invention relates to gardens type electric tool, particularly relate to a kind of shrub and hedge trimmer.
Background technology
Shrub and hedge trimmer are a traditional gardens type electric tools, are usually used in pruning plant.Traditional shrub and hedge trimmer are mainly by bimanualness, and its structure generally has casing, and casing front and rear is assembled with respectively a front hand grip and back handle.On front hand grip and back handle, be respectively equipped with switch control trigger.It must be to press at the same time in the situation of switch control trigger of front hand grip and back handle that safety requires circuit turn-on.When the switch control trigger of the back handle of tradition shrub and hedge trimmer is loosening a little, switch control trigger will disengage with microswitch at once, makes circuit easily because careless manipulation interrupts, therefore do not possess stroke compensate function.
Summary of the invention
Based on this, the switch control trigger that is necessary to propose a kind of back handle possesses the shrub and hedge trimmer of stroke compensation ability.
A kind of shrub and hedge trimmer, comprise casing, the front hand grip and the back handle that are connected with described casing respectively, described back handle comprises back handle shell and is installed on the switch control trigger of described back handle shell, described switch control trigger comprises the trigger that is arranged on back handle shell, be installed on the turning cylinder in described back handle shell and be rotationally connected with the elastic device of described turning cylinder, and described trigger has and pushes the pushing part that described elastic device rotates.
In an embodiment, described elastic device is reed therein.
In an embodiment, described elastic device comprises pivoted arm, finger piece and torsion spring therein, and one end of described pivoted arm is rotationally connected with described turning cylinder, and the other end is in order to pushing part described in butt; One end of described finger piece is connected in described turning cylinder, and the other end can rotate around described turning cylinder; The middle part of described torsion spring is provided with the torsional part that is installed on described turning cylinder, and the both sides of torsional part are provided with respectively the first abutting part and the second abutting part with pivoted arm and finger piece butt.
Therein in an embodiment, described finger piece is provided with the stop section of pivoted arm described in butt.
In an embodiment, in described back handle shell, corresponding described elastic device is provided with microswitch therein.
Therein in an embodiment, described casing is nested cooperation with described back handle, between described casing and described back handle, be provided with the spring leaf that ratchet and one or more and described ratchet coordinate, wherein said ratchet is installed in described casing and back handle, described spring leaf is between another in described casing and back handle and described ratchet, while relatively rotating between described ratchet and described spring leaf described in back handle and described casing also relatively rotate.
In an embodiment, described casing is inserted in described back handle shell therein, and described ratchet is fixed on described casing, and described spring leaf is between described ratchet and described back handle shell.
In an embodiment, two ends of described spring leaf are connected to respectively on described back handle shell therein, and the middle part of described spring leaf is bearing on described ratchet, and described back handle shell is provided with the groove of two ends of the described spring leaf in location.
In an embodiment, be also provided with the pin being arranged on movably on described back handle shell between described back handle shell and described spring leaf therein, described pin is resisted against the middle part of described spring leaf.
In an embodiment, in described back handle shell, motor is also housed therein, described casing is connected in the output shaft of described motor by jackshaft.
In the trigger controlling organization of the back handle of above-mentioned shrub and hedge trimmer, after using trigger operated elastic device to rotate, contact with microswitch, in the time that trigger travel is not enough, the elastic reaction of elastic device still can keep and the contacting of microswitch it, avoid circuit arbitrarily to interrupt, make the trigger controlling organization of back handle possess stroke compensate function.
Brief description of the drawings
Fig. 1 is the front view of shrub and hedge trimmer;
Fig. 2 is the cutaway view of the shrub and hedge trimmer of Fig. 1;
Fig. 3 is the cutaway view of A-A line in Fig. 2;
Fig. 4 is the structural representation of the trigger controlling organization of back handle, and trigger is not pulled;
Fig. 5 is the structural representation of the trigger controlling organization of back handle, shows that trigger is pulled rear finger piece and contacted with microswitch.
Embodiment
Please refer to Fig. 1 to 3, the shrub and hedge trimmer 100 of present embodiment comprise casing 110, be arranged on front hand grip 120 on casing 110, back handle 130, ratchet 140 and spring leaf 150 between casing 110 and back handle 130.Back handle 130 comprises back handle shell 132 and is installed on the switch control trigger of back handle shell 132.
Please refer to Fig. 2 and Fig. 3, in back handle 130, be also provided with motor 160.Nested cooperation between casing 110 and back handle 130, casing 110 is inserted in back handle shell 132 and is fixed on by jackshaft 170 on the output shaft 162 of motor 160.Ratchet 140 is fixed on casing 110.Two ends 152 of spring leaf 150 are positioned at respectively in the groove 132a arranging on back handle shell 132, and the middle part of spring leaf 150 is provided with the projection 154 of an arc.In projection 154 teeth groove that are bearing on ratchet 140.So, in the time that back handle 130 need to rotate, spring leaf 150 will move under the drive at back handle 130 between the different teeth groove of ratchet 140, thereby reach the object that back handle 130 rotates, after being rotated in place, projection 154 still rests in the teeth groove of ratchet 140, and it is many that the easy to operate and back handle 130 of this mode can rotate the position of stop.In present embodiment, spring leaf 150 has two, is symmetrical arranged about ratchet 140, and spring leaf 150 also can have multiple, evenly arranges or otherwise arrange centered by ratchet 140, and it is more steady that multiple spring leafs 150 can make back handle 130 rotate.Two ends 152 of spring leaf 150 can also be fixed on back handle shell 132.
Please refer to Fig. 3, between back handle shell 132 and spring leaf 150, be also provided with the pin 180 being arranged on movably on back handle shell 132.Pin 180 is connected in the projection 154 of spring leaf 150, thereby projection 154 is limited in the teeth groove of ratchet 140, and back handle 130 is in the lock state.In the time that needs rotate back handle 130, only need to pull pin 180 to move by being arranged on the toggle switch in back handle 130 outsides, just can remove the locking of back handle 130, back handle 130 can be rotated.
In addition, it may be noted that, the position of ratchet 140 and spring leaf 150 can exchange, on back handle 130, ratchet structure is set, by spring positioning on casing 110, also be that ratchet structure surrounds spring leaf, can realize equally the object that back handle 130 rotates freely with respect to casing 110, the position that rotates conveniently and can rotate stop is many.
Please refer to Fig. 2, Fig. 4 and Fig. 5, the switch control trigger on back handle 130 comprises the trigger 133 that is arranged on back handle shell 132, is installed on turning cylinder 134, pivoted arm 135, finger piece 136 and torsion spring 137 in back handle shell 132.
Please refer to Fig. 5, after cocking 133, pushing part 133a moves upward and promotes pivoted arm 135 and rotates, pivoted arm 135 will promote the first abutting part 137b, make the second abutting part 137c of torsion spring 137 act on finger piece 136, rotate thereby make to point piece 136 moving axis 134 that rotates, and then finger piece 136 contacts with microswitch 190.
In the present embodiment, one end that pivoted arm 135 is connected in turning cylinder 134 offers breach, and finger piece 136 is to be contained in breach to be connected with turning cylinder 134 simultaneously; The torsional part 137a of torsion spring 137 is between pivoted arm 135 and finger piece 136.Certainly can adopt other modes, as long as while ensureing turning cylinder 134, can act on torsion spring 137 and then make to point piece 136 motions.
In the time that trigger 133 becomes flexible a little due to careless manipulation, the now stroke deficiency of trigger 133, if trigger 133 is reached and contacted with rigid manner with microswitch 190, points piece 136 horse back and microswitch 190 is disengaged, and causes circuit to disconnect; And in the present embodiment, due to the elastic reaction of torsion spring 137, when the stroke of trigger 133 is not enough a little, finger piece 136 still can contact with microswitch 190, be unlikely to occur easily the situation of circuit interruption, thereby reach the object of compensation trigger 133 strokes.
In the present embodiment, pivoted arm 135, finger piece 136 and 137 3 elements of torsion spring form an elastic device, when trigger 133 strokes are not enough, recover principle compensate trigger 133 strokes by elasticity.Need point out, pivoted arm 135, finger piece 136 and torsion spring 137 can be with reed replacements, and in the time of one end of trigger 133 actuating springs, the other end of reed contacts with microswitch, in the time that trigger 133 strokes are not enough, can recover to compensate trigger 133 strokes by the elasticity of reed equally.
To sum up, the shrub and hedge trimmer 100 of the present embodiment possess the compensate function of trigger 133 strokes.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. shrub and hedge trimmer, comprise casing, the front hand grip and the back handle that are connected with described casing respectively, it is characterized in that, described back handle comprises back handle shell and is installed on the switch control trigger of described back handle shell, described switch control trigger comprises the trigger that is arranged on back handle shell, be installed on the turning cylinder in described back handle shell and be rotationally connected with the elastic device of described turning cylinder, and described trigger has and pushes the pushing part that described elastic device rotates.
2. shrub and hedge trimmer according to claim 1, is characterized in that, described elastic device is reed.
3. shrub and hedge trimmer according to claim 1, is characterized in that, described elastic device comprises pivoted arm, finger piece and torsion spring, and one end of described pivoted arm is rotationally connected with described turning cylinder, and the other end is in order to pushing part described in butt; One end of described finger piece is connected in described turning cylinder, and the other end can rotate around described turning cylinder; The middle part of described torsion spring is provided with the torsional part that is installed on described turning cylinder, and the both sides of torsional part are provided with respectively the first abutting part and the second abutting part with pivoted arm and finger piece butt.
4. shrub and hedge trimmer according to claim 3, is characterized in that, described finger piece is provided with the stop section of pivoted arm described in butt.
5. shrub and hedge trimmer according to claim 1, is characterized in that, in described back handle shell, corresponding described elastic device is provided with microswitch.
6. shrub and hedge trimmer according to claim 1, it is characterized in that, described casing is nested cooperation with described back handle, between described casing and described back handle, be provided with the spring leaf that ratchet and one or more and described ratchet coordinate, wherein said ratchet is installed in described casing and back handle, described spring leaf is between another in described casing and back handle and described ratchet, while relatively rotating between described ratchet and described spring leaf described in back handle and described casing also relatively rotate.
7. shrub and hedge trimmer according to claim 6, is characterized in that, described casing is inserted in described back handle shell, and described ratchet is fixed on described casing, and described spring leaf is between described ratchet and described back handle shell.
8. shrub and hedge trimmer according to claim 7, it is characterized in that, two ends of described spring leaf are connected to respectively on described back handle shell, and the middle part of described spring leaf is bearing on described ratchet, and described back handle shell is provided with the groove of two ends of the described spring leaf in location.
9. shrub and hedge trimmer according to claim 8, is characterized in that, are also provided with the pin being arranged on movably on described back handle shell between described back handle shell and described spring leaf, and described pin is resisted against the middle part of described spring leaf.
10. shrub and hedge trimmer according to claim 1, is characterized in that, in described back handle shell, motor are also housed, and described casing is connected in the output shaft of described motor by jackshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585769.5A CN103891533B (en) | 2012-12-28 | 2012-12-28 | Shrub and hedge trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585769.5A CN103891533B (en) | 2012-12-28 | 2012-12-28 | Shrub and hedge trimmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103891533A true CN103891533A (en) | 2014-07-02 |
| CN103891533B CN103891533B (en) | 2016-02-17 |
Family
ID=50983373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210585769.5A Active CN103891533B (en) | 2012-12-28 | 2012-12-28 | Shrub and hedge trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103891533B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992089A (en) * | 2017-05-31 | 2017-07-28 | 西安青合机电有限公司 | A kind of trigger |
| CN111930000A (en) * | 2020-08-24 | 2020-11-13 | 江西凯利德科技有限公司 | Developing box separator and developing box using same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724737A (en) * | 1992-11-25 | 1998-03-10 | Black & Decker Inc. | Switch mechanism |
| CN2624607Y (en) * | 2003-06-23 | 2004-07-14 | 宁波爱乐吉电动工具有限公司 | Safety controlling mechanism for a pruner |
| CN201081906Y (en) * | 2007-08-13 | 2008-07-09 | 苏州利维科电器有限公司 | Security control mechanism for pruner |
| CA2588821A1 (en) * | 2007-05-16 | 2008-11-16 | Jiangsu Golden Harbour Enterprise Ltd. | Hedge trimmer |
| CN101331839A (en) * | 2007-06-26 | 2008-12-31 | 沈高明 | Pruning machine |
| CN201550456U (en) * | 2009-11-24 | 2010-08-18 | 陈寅 | Electric pruning shear |
| CN102396351A (en) * | 2010-09-03 | 2012-04-04 | 泉峰(中国)贸易有限公司 | Pruner and switch device thereof |
-
2012
- 2012-12-28 CN CN201210585769.5A patent/CN103891533B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724737A (en) * | 1992-11-25 | 1998-03-10 | Black & Decker Inc. | Switch mechanism |
| CN2624607Y (en) * | 2003-06-23 | 2004-07-14 | 宁波爱乐吉电动工具有限公司 | Safety controlling mechanism for a pruner |
| CA2588821A1 (en) * | 2007-05-16 | 2008-11-16 | Jiangsu Golden Harbour Enterprise Ltd. | Hedge trimmer |
| CN101331839A (en) * | 2007-06-26 | 2008-12-31 | 沈高明 | Pruning machine |
| CN201081906Y (en) * | 2007-08-13 | 2008-07-09 | 苏州利维科电器有限公司 | Security control mechanism for pruner |
| CN201550456U (en) * | 2009-11-24 | 2010-08-18 | 陈寅 | Electric pruning shear |
| CN102396351A (en) * | 2010-09-03 | 2012-04-04 | 泉峰(中国)贸易有限公司 | Pruner and switch device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992089A (en) * | 2017-05-31 | 2017-07-28 | 西安青合机电有限公司 | A kind of trigger |
| CN111930000A (en) * | 2020-08-24 | 2020-11-13 | 江西凯利德科技有限公司 | Developing box separator and developing box using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103891533B (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102845186B (en) | There is mower and the safety switching mechanism thereof of operation protection | |
| CN101584288B (en) | Handheld tool | |
| CN104942362A (en) | Electric circular saw | |
| CN201957492U (en) | Handheld electric tool with improved trigger | |
| CN202873363U (en) | Mower with operation protection and safety switch mechanism thereof | |
| CN103891533A (en) | Pruning shears | |
| CN102386030B (en) | Intelligent hydraulic electromagnetic type circuit breaker | |
| CN102047815B (en) | Pruning shear | |
| CN110125882B (en) | Switch device for electrically driven garden tool | |
| CN102577847B (en) | Handheld electric tool with improved trigger | |
| CN106211933B (en) | Switching mechanism, operating mechanism and the grass trimmer with the operating mechanism | |
| CN203302040U (en) | Double-action switch structure and pruner with same | |
| CN204204717U (en) | Electric tool | |
| CN203261834U (en) | Hedge trimmer with rotatable handle | |
| CN105470016A (en) | Switch control assembly and starting/stopping method therefor | |
| CN105816070B (en) | Electric cooking device | |
| CN205104383U (en) | Switching device | |
| CN201571365U (en) | Pruning shears | |
| CN103474266A (en) | Safety switch mechanism of gardening tool | |
| CN203632582U (en) | Pruning machine brake circuit | |
| CN201733156U (en) | Motor handle | |
| CN201385304Y (en) | Handhold electric tool | |
| CN204257428U (en) | Solid insulation ring main unit multifunctional remotely handle | |
| CN203631456U (en) | Mechanical tripping mechanism used for electric leakage protection socket | |
| CN204118910U (en) | A kind of handwheel telescopic electric actuator |
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 |