CN201092067Y - Braking stop device of electric chain saw - Google Patents
Braking stop device of electric chain saw Download PDFInfo
- Publication number
- CN201092067Y CN201092067Y CNU2007201761842U CN200720176184U CN201092067Y CN 201092067 Y CN201092067 Y CN 201092067Y CN U2007201761842 U CNU2007201761842 U CN U2007201761842U CN 200720176184 U CN200720176184 U CN 200720176184U CN 201092067 Y CN201092067 Y CN 201092067Y
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- China
- Prior art keywords
- brake
- output shaft
- torsion spring
- free end
- button spring
- 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.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a brake stop device for electric chain saws, comprising a braking transmission structure and a clutch structure. The clutch structure consists of a large gear arranged on an output shaft of a gear box and a torsion spring arranged between the output shaft and the large gear; one end of the torsion spring is fixedly connected and tightly matched with the output shaft, while the other end of the torsion spring, a free end, is matched with the large gear; a brake rod sliding up-and-down is arranged in the braking transmission structure. When the brake rod is in a lower position, the upper free end of the torsion spring can be stirred by the lower end of the brake rod; a groove matched with the torsion spring is arranged at the lower end of the brake rod; guide inclined planes which oblique outwards are positioned at both sides of the groove, which renders the brake rod to be better matched with the free end of the torsion spring, in this way, brake and stopping failures caused by slipping phenomenon is avoided, therefore the operation is reliable.
Description
Technical field:
The utility model relates to the brake stop device of a kind of hand-held type chain saw, particularly a kind of electric chain saw.
Background technology:
Electric chain saw is in working angles, and the head of saw chain bar can run into harder object (such as tree knot, the artificial metal object that is provided with etc.) unavoidably, and at this moment, saw chain will make progress and/or backward towards operator's recoil, serious threat operator's life security.For this reason, prior art has been invented multiple brake stop device.For example, one button spring is set between the gear wheel at the output shaft of gearbox and on it, button spring one end and output shaft is affixed and tight fit with it, the other end be free end and with gear wheel movingly, designed in addition one can upper and lower slip brake lever, this brake lever lower end is provided with a plane breach, when brake lever is in when the next, down transverse plane breach can button handsetting spring free end for it, on the one hand output shaft is stopped with the button spring, impel simultaneously the button spring to unclamp and the cooperating of gear wheel again, make the idle running of gear wheel inertia, thereby realize the purpose of brake stop.But the plane breach in this device is not too reliable when cooperating with button spring free end, is easy to cause the two dislocation because skid, and makes that brake stop is malfunctioning.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple in structure, the reliable electric chain saw brake of operation stop device is provided.
The electric chain saw brake stop device that provides according to the utility model, comprise brake drive mechanism and clutch structure, described clutch structure comprise be installed in the gear wheel on the output shaft of gear-box and be located at output shaft and gear wheel between the button spring, this button spring one end and output shaft is affixed and tight fit with it, the other end be free end and with gear wheel movingly, being equipped with one in the described brake drive mechanism can go up, the brake lever of lower slider, this brake lever be in when the next its lower end can the button handsetting spring on free end, the lower end of described brake lever is provided with a groove that matches with the button spring, and these groove both sides are equipped with outward-dipping guiding surface.
According to the electric chain saw brake stop device that the utility model provides, prior art has following advantage relatively:
The utility model matches the brake lever lower end with button spring free end position is designed to the groove shapes on tape guide inclined-plane, brake lever and button spring free end are combined together better, prevent skidding and cause brake stop malfunctioning, thereby operation is reliable.
Description of drawings:
Introduce the utility model in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the structural representation according to electric chain saw brake stop device described in the utility model;
Fig. 2 is the structural representation of brake lever upper groove described in the utility model.
The specific embodiment:
See figures.1.and.2, the electric chain saw brake stop device that provides according to the utility model, comprise brake drive mechanism 1 and clutch structure 2, clutch structure 2 comprise the gear wheel 22 that is installed on the output shaft of gear-box 21 and be located at output shaft 21 and gear wheel 22 between button spring 23.The external part and the output shaft 21 of these button spring 23 1 ends are affixed, and simultaneously, this end is enclosed within outward on the output shaft 21 and tight fit with it, and the external part of the other end is a free end, and should end with gear wheel 22 movingly; Gear wheel 22 can be installed on the output shaft 21 by axle sleeve, button spring 23 outer being enclosed within on the axle sleeve, when gear wheel 22 rotates, can drive output shaft by button spring 23 does to rotate synchronously, when external force is stirred on the button spring 23 free end, this button spring 23 can unclamp and the cooperating of axle sleeve, and then being rotationally connected synchronously between disconnection gear wheel 22 and the output shaft 21, simultaneously, button spring 23 self can not rotate under external force, and then the output shaft affixed with it 21 can not be rotated, and overcome output shaft 21 inertia and rotated, the saw chain bar was had to go to the toilet in the extremely short time stop.
In the brake drive mechanism 1 brake lever 11 is installed, this brake lever 11 is by 1 control of brake drive mechanism, and can upper and lower slip with its action, its lower end is provided with a groove 12 that matches with button spring 23, these groove 12 both sides are equipped with outward-dipping guiding surface 13, when brake lever 11 is in when the next, the groove of its lower end can button handsetting spring 23 on free end, impel the button spring to unclamp and the cooperating of gear wheel, thereby realize the purpose of brake stop.Guiding surface 13 can be in the process that brake lever 11 glides, and to leading its and cooperating of button spring, preventing occurring inconsistent phenomenon because of skidding, thereby brake lever and button spring free end is combined together better, and the reliability of the stop of promptly braking is stirred in increase.
The foregoing description is only for the usefulness that the utility model is described; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (1)
1. electric chain saw brake stop device, comprise brake drive mechanism (1) and clutch structure (2), described clutch structure (2) comprise the gear wheel (22) that is installed on the output shaft of gear-box (21) and be located at output shaft (21) and gear wheel (22) between button spring (23), this button spring (23) one ends and output shaft (21) is affixed and tight fit with it, the other end be free end and with gear wheel (22) movingly, being equipped with one in the described brake drive mechanism (1) can go up, the brake lever of lower slider (11), this brake lever (11) is in when the next its lower end can go up free end by button handsetting spring (23), it is characterized in that: the lower end of described brake lever (11) is provided with a groove (12) that matches with button spring (23), and this groove (12) both sides are equipped with outward-dipping guiding surface (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201761842U CN201092067Y (en) | 2007-09-06 | 2007-09-06 | Braking stop device of electric chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201761842U CN201092067Y (en) | 2007-09-06 | 2007-09-06 | Braking stop device of electric chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092067Y true CN201092067Y (en) | 2008-07-30 |
Family
ID=39900029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201761842U Expired - Fee Related CN201092067Y (en) | 2007-09-06 | 2007-09-06 | Braking stop device of electric chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092067Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758518B (en) * | 2008-12-23 | 2013-01-30 | 苏州宝时得电动工具有限公司 | Brake device of electric tool |
| CN104712679A (en) * | 2013-12-16 | 2015-06-17 | 深圳市联创三金电器有限公司 | Engage clutch controlled by long arm fastener and food processor |
-
2007
- 2007-09-06 CN CNU2007201761842U patent/CN201092067Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758518B (en) * | 2008-12-23 | 2013-01-30 | 苏州宝时得电动工具有限公司 | Brake device of electric tool |
| CN104712679A (en) * | 2013-12-16 | 2015-06-17 | 深圳市联创三金电器有限公司 | Engage clutch controlled by long arm fastener and food processor |
| CN104712679B (en) * | 2013-12-16 | 2017-07-21 | 深圳市联创三金电器有限公司 | The engaged clutch and food processor controlled by long-armed fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Safun Tools Manufacture Co., Ltd. Assignor: Huang Li Contract fulfillment period: 2008.11.4 to 2015.11.4 Contract record no.: 2008330002092 Denomination of utility model: Braking stop device of electric chain saw Granted publication date: 20080730 License type: Exclusive license Record date: 20081118 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.4 TO 2015.11.4; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE SANFENG TOOL MANUFACTURING CO., Effective date: 20081118 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PROVINCE SANFENG TOOL MANUFACTURING CO., Free format text: FORMER OWNER: HUANG LI Effective date: 20090703 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090703 Address after: No. 7, Zhejiang Province, Yongkang City Economic Development Zone South Park Avenue, zip code: 321300 Patentee after: Zhejiang Safun Tools Manufacture Co., Ltd. Address before: Hangzhou City, Zhejiang province Xihu District Wensanlu Road Wenjin court 16 Building 2 unit 201 room, zip code: 310000 Patentee before: Huang Li |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SAFUN INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: ZHEJIANG SAFUN TOOLS MANUFACTURING CO., LTD. Effective date: 20110209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110209 Address after: 7 No. 321300 Zhejiang city in Yongkang Province Economic Development Zone South Park Avenue Patentee after: Zhejiang Safun Industrial Co., Ltd. Address before: 7 No. 321300 Zhejiang city in Yongkang Province Economic Development Zone South Park Avenue Patentee before: Zhejiang Safun Tools Manufacture Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20090906 |