CN201128033Y - Electric chain saw protective plate switch brake linkage - Google Patents
Electric chain saw protective plate switch brake linkage Download PDFInfo
- Publication number
- CN201128033Y CN201128033Y CNU2007203067672U CN200720306767U CN201128033Y CN 201128033 Y CN201128033 Y CN 201128033Y CN U2007203067672 U CNU2007203067672 U CN U2007203067672U CN 200720306767 U CN200720306767 U CN 200720306767U CN 201128033 Y CN201128033 Y CN 201128033Y
- Authority
- CN
- China
- Prior art keywords
- brake
- switch
- guard plate
- casing
- chain saw
- 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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Abstract
An electric chain saw guard plate switch linked brake apparatus comprises a brake drum, a brake band, a guard plate, a push connecting bar and an L-shaped button. The brake drum is closely sleeved on an electric engine spindle; the brake band is sleeved on the outer ring of the brake drum and one end of the brake band is fixedly connected on a shell, the other end of the brake band penetrates through a flexible spring to be connected with the push connecting bar; the guard plate is fixed on the shell by a pivot shaft, one end of the guard plate exposes outside the shell, the other end of the guard plate is provided with a concave-shaped groove which connects with the push connecting bar in a sliding way. A protective switch is fixed on the shell and connects with a switch and an electric engine in series, the close and the off are realized by the L-shaped button which is fixed on the shell, one end of the L-shaped button can press the button of the protective switch and the other end of the L-shaped button is controlled by an extruded point of the guard plate. The switch is protected through the linked action of the guard plate to realize the power cut and the brake. The electric chain saw guard plate switch linked brake apparatus has the advantages that the design is reasonable, the structure is simple to be able to increase the easiness of the operation, the brake is quick, the braking time is shortened, the action is sensitive as well as the security and the reliability of the operation are enhanced, etc.
Description
Technical field
The utility model relates to a kind of hand held electric chain saw, especially the brake gear on the hand held electric chain saw.
Technical background
New chain saw standard-required: electric chain saw is within 1 second of back handle switch disconnection, and the chain of chain saw must stop.The electric chain saw of domestic production at present generally all adopts the electric brake of this dual mode of the reverse by-pass bag of back handle switch in parallel or stator, and defective such as the electric brake of this dual mode all exists that motor spark is big, switch service life is low.Patent No. ZL 200420110963.9 adopts motor gear and gear wheel engagement, and the gear wheel and first castle wheel are affixed, and second castle wheel can be installed on the output shaft with moving axially, and the roller bearing shop of second castle wheel and output shaft is provided with spring; Second castle wheel is related with the brake support, brake mid-stent and pull bar are hinged, and the other end of this pull bar is hinged with the vertical part of " L " shape button, and the transverse part of " L " button is related with power switch, the connecting portion of vertical part and transverse part and chain saw housing are hinged, are provided with back-moving spring between transverse part and chain saw housing.Substantially all be to adopt power switch, clutch, brake three Joint Implementation on the market, when braking, power switch must be pressed earlier like this and cut off the electricity supply that trip switch realizes clutch separation again, the back brake.The speed of clutch and brake is still slow like this, does not have protective effect.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, braking rapidly, good braking effect electric chain saw baffle switch gearing brake gear.
Above-mentioned technical purpose mainly solves by the following technical programs: chain saw comprises compositions such as casing, motor bracket, brake rim, brake steel band, switch, protection switch, coil tension spring, promotion connecting rod, L type button and baffle.This brake gear comprises brake rim, brake ribbon, baffle, promotion connecting rod and L type button.Brake rim is set on the electric machine main shaft closely.Brake ribbon is set on the outer ring of brake rim and the one end is fixedly connected on the casing, and the other end passes coil tension spring and promotes connecting rod and be connected.Baffle is fixed on the casing by pivot, and baffle one end is exposed at outside the casing, and the other end is established concave groove and is slidingly connected with the promotion connecting rod.Protection switch is fixed on the casing, connects with switch, motor, and protection switch realizes by L type button and disconnect that L type switch also is fixed on the casing closed, and an end can be pressed the button of protection switch, the projecting point control of the protected plate of the other end.
Owing to adopted protection switch and baffle in the technique scheme,, realized outage and brake by the action interlock protection switch of baffle.Therefore, the utlity model has reasonable in design, simple in structure, can improve the simplicity of operation, brake rapidly, shorten braking time, be active in one's movements, increased the advantages such as security reliability of operation.
Description of drawings
Accompanying drawing 1 is the local a kind of cross-sectional view of saw chain of the present utility model;
The specific embodiment
As shown in Figure 1, described chain saw comprises casing 1, motor bracket 2, brake rim 3, brake steel band 4, switch, protection switch 5, coil tension spring 6, promotes compositions such as connecting rod 7, L type button 8 and baffle 9.This brake gear comprises brake rim 3, brake ribbon 4, baffle 9, promotes connecting rod 7 and L type button 8.Brake rim 3 is set on the electric machine main shaft closely.Brake ribbon 4 is set on the outer ring of brake rim 3 and the one end is fixedly connected on the casing, and the other end passes coil tension spring 6 and promotes connecting rod 7 and be connected, and coil tension spring 6 one ends head on casing, and the other end heads on the promotion connecting rod.Baffle 9 is made the tile type, is fixed on the casing by pivot, and baffle 9 one ends are exposed at outside the casing, and the other end is established two lugs, and one of them is made as concave groove and is slidingly connected with promotion connecting rod 7.Protection switch 5 is fixed on the casing, connects with switch, motor, and protection switch 5 realizes by L type button 8 and disconnect that L type switch also is fixed on the casing closed, and an end can be pressed the button of protection switch, the lug control of the protected plate of the other end.
Like this, compress promotion connecting rod 7 by lug when baffle 9 post-tensionings, make promotion connecting rod 7 compress coil tension spring 6, thereby loosen brake ribbon 4, the brake ribbon 4 on brake rim 3 separates with brake rim 3 fully, and brake rim 3 can rotate freely under the drive of motor.Another lug on the baffle 9 compresses L type button 8 simultaneously, and L type button 8 is by the fulcrum rotation, and resistance arm compresses the contact of chain saw protection switch 5, makes power connection.Push away before the baffle; the lug of baffle 9 separates with L type button 8 earlier; L type button 8 makes the resistance arm of L type button 8 loosen chain saw protection switch 5 contact points by the fulcrum revolution, cuts off the electricity supply; loosen simultaneously and promote connecting rod 7; coil tension spring 6 recovers original length under the elastic force effect of coil tension spring 6, tightens up brake steel band 4, holds brake rim 3 tightly; realization stops the rotation of motor and chain, reaches the effect of snub.
Claims (1)
1. electric chain saw baffle switch gearing brake gear; this brake gear comprises brake rim (3); brake ribbon (4); baffle (9); promote connecting rod (7) and L type button (8); brake rim (3) is set on the electric machine main shaft closely; it is characterized in that: brake ribbon (4) is set on the outer ring of brake rim (3) and the one end is fixedly connected on the casing; the other end passes coil tension spring (6) and is connected with promotion connecting rod (7); baffle (9) is fixed on the casing by pivot; baffle (9) one ends are exposed at outside the casing; the other end is established concave groove and is slidingly connected with promotion connecting rod (7); protection switch (5) is fixed on the casing; with switch; the motor series connection; protection switch (5) is realized closed by L type button (8) and is disconnected; L type switch (8) also is fixed on the casing; one end can be pressed the button of protection switch (5), the projecting point control of the protected plate of the other end (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203067672U CN201128033Y (en) | 2007-12-21 | 2007-12-21 | Electric chain saw protective plate switch brake linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203067672U CN201128033Y (en) | 2007-12-21 | 2007-12-21 | Electric chain saw protective plate switch brake linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201128033Y true CN201128033Y (en) | 2008-10-08 |
Family
ID=40015859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203067672U Expired - Fee Related CN201128033Y (en) | 2007-12-21 | 2007-12-21 | Electric chain saw protective plate switch brake linkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201128033Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151903A (en) * | 2011-03-03 | 2011-08-17 | 浙江亚特电器有限公司 | Chain saw brake alarm structure |
| CN102380662A (en) * | 2010-08-27 | 2012-03-21 | 泉峰(中国)贸易有限公司 | Chain saw |
| CN102554347A (en) * | 2012-02-21 | 2012-07-11 | 浙江亚特电器有限公司 | Electric chain saw |
| CN102672273A (en) * | 2012-05-25 | 2012-09-19 | 浙江亚特电器有限公司 | Chain saw with protection plate positioning mechanism |
| CN107535211A (en) * | 2017-08-23 | 2018-01-05 | 宁波动电器有限公司 | A kind of linkage brake mechanism and chain saw |
-
2007
- 2007-12-21 CN CNU2007203067672U patent/CN201128033Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380662A (en) * | 2010-08-27 | 2012-03-21 | 泉峰(中国)贸易有限公司 | Chain saw |
| CN102380662B (en) * | 2010-08-27 | 2013-09-04 | 泉峰(中国)贸易有限公司 | Chain saw |
| CN102151903A (en) * | 2011-03-03 | 2011-08-17 | 浙江亚特电器有限公司 | Chain saw brake alarm structure |
| CN102151903B (en) * | 2011-03-03 | 2012-08-22 | 浙江亚特电器有限公司 | Chain saw brake alarm structure |
| CN102554347A (en) * | 2012-02-21 | 2012-07-11 | 浙江亚特电器有限公司 | Electric chain saw |
| CN102672273A (en) * | 2012-05-25 | 2012-09-19 | 浙江亚特电器有限公司 | Chain saw with protection plate positioning mechanism |
| CN102672273B (en) * | 2012-05-25 | 2014-11-12 | 浙江亚特电器有限公司 | Chain saw with protection plate positioning mechanism |
| CN107535211A (en) * | 2017-08-23 | 2018-01-05 | 宁波动电器有限公司 | A kind of linkage brake mechanism and chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20121221 |