CN107470962A - The brake structure and chain saw of a kind of chain saw - Google Patents

The brake structure and chain saw of a kind of chain saw Download PDF

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Publication number
CN107470962A
CN107470962A CN201710753435.7A CN201710753435A CN107470962A CN 107470962 A CN107470962 A CN 107470962A CN 201710753435 A CN201710753435 A CN 201710753435A CN 107470962 A CN107470962 A CN 107470962A
Authority
CN
China
Prior art keywords
brake
chain saw
steel band
extension spring
limited impression
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
Application number
CN201710753435.7A
Other languages
Chinese (zh)
Inventor
李斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
An Electrical Appliances Co Ltd Is Moved In Ningbo
Original Assignee
An Electrical Appliances Co Ltd Is Moved In Ningbo
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by An Electrical Appliances Co Ltd Is Moved In Ningbo filed Critical An Electrical Appliances Co Ltd Is Moved In Ningbo
Priority to CN201710753435.7A priority Critical patent/CN107470962A/en
Publication of CN107470962A publication Critical patent/CN107470962A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02Driving main working members
    • B23Q5/04Driving main working members rotary shafts, e.g. working-spindles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D57/00Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/02Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02Driving main working members
    • B23Q5/04Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/20Adjusting or stopping working-spindles in a predetermined position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00Chain saws; Equipment therefor
    • B27B17/08Drives or gearings; Devices for swivelling or tilting the chain saw
    • B27B17/083Devices for arresting movement of the saw chain

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention provides a kind of brake structure of chain saw, it includes:Chain saw frame;Brake disc, in brake disc periphery, close surround has brake steel band;Protective plate, is hinged in chain saw frame and its lower end is provided with limited post;Brake member, its middle part are hinged in chain saw frame, and the brake member lower end is connected with brake steel band, and its upper end is provided with the limited impression being adapted to limited post, the brake breach positioned at limited impression close to brake steel band side;Brake extension spring, is connected between brake member and chain saw frame, and when chain saw is in normal operating conditions, the brake extension spring is in extended state, and now limited post is placed in limited impression.The brake structure of this chain saw has the advantages of simpler structure, reliable operation.

Description

The brake structure and chain saw of a kind of chain saw
Technical field
The invention belongs to chain saw braking technology field, it is related to the brake structure and chain saw of a kind of chain saw.
Background technology
In the prior art, the brake structure of chain saw typically uses more complicated compressed spring type overall brake structure, also someone Such as Patent No. CN203592525U chain saw braking device, its brake lever is devised by bar linkage structure with runner to be connected, During braking, the brake ribbon in handle action and drivening rod structure pulling runner, the chain saw braking device overall structure is set also It is relatively complicated, is coordinated using comparatively laborious bar linkage structure and back-moving spring, support spring, above-mentioned two spring is at this Play a part of being to reset in device, the braking effort element of the device is to set more complicated bar linkage structure.
On the other hand, also need to design a kind of brake structure of simpler, reliable operation the chain saw of structure.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of structure is simpler, work The brake structure of reliable chain saw.
The purpose of the present invention can be realized by following technical proposal:A kind of brake structure of chain saw, including:
Chain saw frame;
Brake disc, in brake disc periphery, close surround has brake steel band;
Protective plate, is hinged in chain saw frame and its lower end is provided with limited post;
Brake member, its middle part are hinged in chain saw frame, and the brake member lower end is connected with brake steel band, and its upper end is provided with Limited impression, the brake breach positioned at limited impression close to brake steel band side being adapted to limited post;
Brake extension spring, is connected between brake member and chain saw frame, and when chain saw is in normal operating conditions, the brake is drawn Spring is in extended state, and now limited post is placed in limited impression.
As a further improvement on the present invention, the limited impression is always positioned at breach side upper position of braking, and stops Car notch depth is more than limited impression.
As a further improvement on the present invention, it is described brake extension spring be tightly disposed in brake steel band and protective plate lower end it Between, and the opening of the close brake breach of link position of brake extension spring and brake member.
As a further improvement on the present invention, the brake breach interior walls be smooth transits to limited impression.
As a further improvement on the present invention, the limited post is arranged on protective plate lower end close to edge placement.
As a further improvement on the present invention, the brake member lower end closely connects through brake steel band and with brake steel band Connect.
A kind of chain saw, include the brake structure of above-mentioned chain saw.
Based on above-mentioned technical proposal, the embodiment of the present invention can at least produce following technique effect:The brake knot of this chain saw Structure overall construction design compressed spring type structure more of the prior art and drawbar structure are more simple, reliable operation, this brake knot The brake power element of structure is brake extension spring, rather than skilful as dynamical element, brake member design using handle in the prior art Wonderful, for close connection protective plate, brake extension spring and brake steel band, the brake extension spring in the present invention is not after brake member acts Reset element, but the dynamical element of brake member drive brake steel band braking disc is pulled, the reset after brake member action is anti- But realized by protective plate, the protective plate in the present invention is fitted close with brake member, brake extension spring, and it is mainly used in spacing Brake member (makes brake extension spring be in extended state), or releasing is spacing, brake extension spring is driven brake member braking disc, this hair The brake structure of bright extremely simple and ingenious layout not only solves inner space problem, also significantly reduces production cost, has wide General market application and promotion prospect.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structural representation of a preferred embodiment of the present invention normal operating conditions.
Fig. 2 is the structural representation in a preferred embodiment of the present invention braking procedure.
Fig. 3 is the structural representation of a preferred embodiment of the present invention braking state.
Fig. 4 is the structural representation of brake member in a preferred embodiment of the present invention.
In figure, 10, protective plate;11st, limited post;20th, brake disc;30th, brake steel band;40th, brake member;41st, limited impression; 42nd, brake breach;50th, brake extension spring.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described, But the present invention is not limited to these embodiments.
Technical scheme provided by the invention is illustrated in more detail with reference to Fig. 1 to Fig. 4.
As shown in Figure 1 to Figure 3, the brake structure of this chain saw includes:
Chain saw frame (not shown);
Protective plate 10, is hinged in chain saw frame and its lower end is provided with limited post 11;
Brake disc 20, in the periphery of brake disc 20, close surround has brake steel band 30;
Brake member 40, its middle part are hinged in chain saw frame, and the lower end of brake member 40 is connected with brake steel band 30, thereon End is provided with the limited impression 41 being adapted to limited post 11, the brake breach positioned at limited impression 41 close to brake steel band 30 side 42;
Brake extension spring 50, is connected between brake member 40 and chain saw frame, when chain saw is in normal operating conditions, the brake Car extension spring 50 is in extended state, and now limited post 11 is placed in limited impression 41, and brake member 40 is limited post 11 and pushed against, brake Extension spring 50 can not pull brake member 40;When chain saw is braked, the limited post 11 departs from limited impression 41, and the brake extension spring 50 exists Restoring force effect is lower to pull brake member 40 to rotate (herein rotate to be rotate counterclockwise shown in Fig. 1) related tension brake steel band 30 Braking disc 20, final limited post 11 are placed in brake breach 42 bottom.
In the present invention, above-mentioned limited post 11 can be connected as a single entity with protective plate 10 also subsequent fixed can be arranged on protective plate On 10, for convenience of dismantling and safeguarding, preferable limited post 11 is plugged on protective plate 10, and braking procedure track of the invention is as schemed Shown in 1 and Fig. 2 arrows, by Fig. 1 to Fig. 2, protective plate 10 swings (being only direction as shown) clockwise, and brake extension spring 50 is by the right side To left reply, the counterclockwise rotates of brake member 40.
The present invention protects a kind of brake structure of chain saw, its overall construction design compressed spring type structure more of the prior art and Drawbar structure is more simple, reliable operation, and the brake power element of this brake structure is brake extension spring 50, rather than existing skill Using handle as dynamical element in art, brake member 40 is ingenious in design, for closely connecting protective plate 10, brake extension spring 50 and stopping Car steel band 30, the present invention in brake extension spring 50 be not brake member 40 act after reset element, but pulling the band of brake member 40 The dynamical element of the dynamic brake braking disc 20 of steel band 30, the reset after brake member 40 acts is realized by protective plate 10 on the contrary , the protective plate 10 in the present invention is fitted close with brake member 40, brake extension spring 50, and it, which is mainly used in spacing brake member 40, (makes Brake extension spring 50 be in extended state), or release it is spacing, make brake extension spring 50 drive the braking disc 20 of brake member 40, this hair The brake structure of bright extremely simple and ingenious layout not only solves inner space problem, also significantly reduces production cost, has wide General market application and promotion prospect.
Specifically, during normal operating conditions, brake steel band 30 does not hold brake disc 20 tightly, and protective plate 10 is in normal work Position, now limited post 11 be located in limited impression 41, brake extension spring 50 be in extended state, brake extension spring 50 and the breach that brakes 42 are in the same side of limited impression 41, and due to the effect of limited post 11, brake member 40 is limited post 11 and pushed against, extension spring 50 of braking Brake member 40 can not be pulled, brake steel band 30 keeps normal condition (even if brake steel band 30 now has brake force, to nor affect on Chain saw normal work).
Chain saw brake when, external force (such as manual) drive protective plate 10 according to the direction of arrow shown in Fig. 1 that is, clockwise Direction is swung so that limited post 11 departs from limited impression 41 and is moved to for example shown in Fig. 4 position A at (i.e. brake breach 42 is opened Position at mouthful), now limit effect releases, and brake extension spring 50 pulls the company of rotating counterclockwise of brake member 40 under restoring force effect Band tenses the brake braking disc 20 of steel band 30, and in braking procedure, the upper end of brake member 40 is moved towards brake extension spring 50, brake member 40 lower ends are moved away from brake extension spring 50 direction and gradually tense brake steel band 30, and final brake member 40 moves into place, this When brake the bottom of breach 42 and limited post 11 be abutted together or limited post 11 close to brake breach 42 bottom, (state is anticipated The pulling force that taste brake extension spring 50 terminates, brake extension spring 50 recovered reset condition), brake member 40 is limited and no longer again It is mobile.
Need reset when, drive the backswing of protective plate 10 and make limited post 11 carry over brake the inwall of breach 42 be moved to limit In the groove 41 of position.
It is worth mentioning that:Brake extension spring 50 in the present invention is the extension spring for braking, rather than makes brake member 40 dynamic Resetted after work, it is the action band by protective plate 10 that brake member 40, which is reset to spacing state (i.e. normal operating conditions shown in Fig. 1), It is dynamic, along band stretching brake extension spring 50, smart structural design during drive.
Further, limited impression 41 is always positioned at the side upper position of breach 42 of braking, and the depth of breach 42 of braking is big In limited impression 41;Such topology layout not only ensure that the reliability of overall work, also optimize the space of brake member 40 Layout.
For further lifting chain saw internal space layout compactedness, and brake extension spring 50 drive brake member 40 act can By property and stress concentration, extension spring 50 of preferably braking is tightly disposed between brake steel band 30 and the lower end of protective plate 10, and is braked and drawn The opening of spring 50 and the close brake breach 42 of link position of brake member 40.
Make it that reset is reliable after braking, avoids the interference in limited post 11 and the relative movement thereof of brake member 40, reduces Friction, the interior walls be smooth of breach 42 that preferably brakes transit to limited impression 41.
Above-mentioned limited post 11 is preferably provided at the lower end of protective plate 10 close to edge placement so that protective plate 10 and brake member 40 Even closer cooperation, also reduce the lower end interference of protective plate 10.
Preferably, to ensure that brake member drives brake steel band reliable, and room for promotion is laid out, and the lower end of brake member 40, which passes through, stops Car steel band 30 is simultaneously closely connected with brake steel band 30.
The present invention also protects a kind of chain saw of the brake structure using above-mentioned chain saw.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.

Claims (7)

1. a kind of brake structure of chain saw, including:
Chain saw frame;
Brake disc, in brake disc periphery, close surround has brake steel band;
It is characterized in that:
Protective plate, is hinged in chain saw frame and its lower end is provided with limited post;
Brake member, its middle part are hinged in chain saw frame, and the brake member lower end is connected with brake steel band, and its upper end is provided with and limit Limited impression, the brake breach positioned at limited impression close to brake steel band side of position post adaptation;
Brake extension spring, is connected between brake member and chain saw frame, when chain saw is in normal operating conditions, at the brake extension spring In extended state, now limited post is placed in limited impression.
A kind of 2. brake structure of chain saw according to claim 1, it is characterised in that:The limited impression is always positioned at stopping Car breach side upper position, and the notch depth that brakes is more than limited impression.
A kind of 3. brake structure of chain saw according to claim 1, it is characterised in that:The brake extension spring is tightly disposed in Brake between steel band and protective plate lower end, and the opening of the close brake breach of link position of brake extension spring and brake member.
A kind of 4. brake structure of chain saw according to claim 1, it is characterised in that:The brake breach interior walls be smooth mistake Cross to limited impression.
A kind of 5. brake structure of chain saw according to claim 1, it is characterised in that:The limited post is arranged on protective plate Lower end is close to edge placement.
A kind of 6. brake structure of chain saw according to claim 1, it is characterised in that:The brake member lower end passes through brake Steel band is simultaneously closely connected with brake steel band.
7. a kind of chain saw, include the brake structure of the chain saw described in any one of claim 1 to 6.
CN201710753435.7A 2017-08-29 2017-08-29 The brake structure and chain saw of a kind of chain saw Pending CN107470962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710753435.7A CN107470962A (en) 2017-08-29 2017-08-29 The brake structure and chain saw of a kind of chain saw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710753435.7A CN107470962A (en) 2017-08-29 2017-08-29 The brake structure and chain saw of a kind of chain saw

Publications (1)

Publication Number Publication Date
CN107470962A true CN107470962A (en) 2017-12-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710753435.7A Pending CN107470962A (en) 2017-08-29 2017-08-29 The brake structure and chain saw of a kind of chain saw

Country Status (1)

Country Link
CN (1) CN107470962A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110404271A (en) * 2018-09-10 2019-11-05 中山市金马科技娱乐设备股份有限公司 A kind of anti-down demagnetization brake apparatus of trigger-type
CN113001480A (en) * 2021-03-12 2021-06-22 格力博(江苏)股份有限公司 Brake control device and garden tool
US12064894B2 (en) 2020-09-04 2024-08-20 Milwaukee Electric Tool Corporation Chainsaw

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091896A (en) * 1976-01-22 1978-05-30 Firma Andreas Stihl Chain saw braking mechanism
CN2609700Y (en) * 2003-03-21 2004-04-07 黄源 Brake device of electric chain saw
CN1689776A (en) * 2004-04-27 2005-11-02 罗伯特·博世有限公司 Motor chain saw
CN102398078A (en) * 2011-10-25 2012-04-04 浙江亚特电器有限公司 Mechanical brake structure of a chain saw
CN202746460U (en) * 2012-09-20 2013-02-20 浙江格林雅动力科技有限公司 Brake device of electric chain saw
CN103629271A (en) * 2012-08-21 2014-03-12 宁波奇亚园林工具有限公司 Mechanical brake structure
CN105127511A (en) * 2015-09-08 2015-12-09 嘉兴百佳机械有限公司 Supporting mechanism for braking connecting rod in electric chain saw braking device
CN207372780U (en) * 2017-08-29 2018-05-18 浙江动一新能源动力科技股份有限公司 The brake structure and chain saw of a kind of chain saw

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091896A (en) * 1976-01-22 1978-05-30 Firma Andreas Stihl Chain saw braking mechanism
CN2609700Y (en) * 2003-03-21 2004-04-07 黄源 Brake device of electric chain saw
CN1689776A (en) * 2004-04-27 2005-11-02 罗伯特·博世有限公司 Motor chain saw
CN102398078A (en) * 2011-10-25 2012-04-04 浙江亚特电器有限公司 Mechanical brake structure of a chain saw
CN103629271A (en) * 2012-08-21 2014-03-12 宁波奇亚园林工具有限公司 Mechanical brake structure
CN202746460U (en) * 2012-09-20 2013-02-20 浙江格林雅动力科技有限公司 Brake device of electric chain saw
CN105127511A (en) * 2015-09-08 2015-12-09 嘉兴百佳机械有限公司 Supporting mechanism for braking connecting rod in electric chain saw braking device
CN207372780U (en) * 2017-08-29 2018-05-18 浙江动一新能源动力科技股份有限公司 The brake structure and chain saw of a kind of chain saw

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110404271A (en) * 2018-09-10 2019-11-05 中山市金马科技娱乐设备股份有限公司 A kind of anti-down demagnetization brake apparatus of trigger-type
CN110404271B (en) * 2018-09-10 2024-05-28 广东金马游乐股份有限公司 Trigger type anti-reversing demagnetizing brake device
US12064894B2 (en) 2020-09-04 2024-08-20 Milwaukee Electric Tool Corporation Chainsaw
CN113001480A (en) * 2021-03-12 2021-06-22 格力博(江苏)股份有限公司 Brake control device and garden tool
CN113001480B (en) * 2021-03-12 2022-08-23 格力博(江苏)股份有限公司 Brake control device and garden tool

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CB02 Change of applicant information

Address after: No. 398, Longtan Road, Yuelin street, Fenghua District, Ningbo, Zhejiang

Applicant after: ZHEJIANG LERA NEW ENERGY POWER TECHNOLOGY Co.,Ltd.

Address before: No. 398, Longtan Road, Yuelin street, Fenghua, Ningbo, Zhejiang

Applicant before: NINGBO LERA ELECTRIC APPLIANCE Co.,Ltd.

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Address after: 315000 No. 255, Kesheng Road, Wangchun Industrial Park, Haishu District, Ningbo City, Zhejiang Province

Applicant after: ZHEJIANG LERA NEW ENERGY POWER TECHNOLOGY Co.,Ltd.

Address before: 315505 No.398 Longtan Road, Yuelin street, Fenghua District, Ningbo City, Zhejiang Province

Applicant before: ZHEJIANG LERA NEW ENERGY POWER TECHNOLOGY Co.,Ltd.

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Application publication date: 20171215

RJ01 Rejection of invention patent application after publication