CN1709019A - Safety rotary blade - Google Patents

Safety rotary blade Download PDF

Info

Publication number
CN1709019A
CN1709019A CNA2004100491796A CN200410049179A CN1709019A CN 1709019 A CN1709019 A CN 1709019A CN A2004100491796 A CNA2004100491796 A CN A2004100491796A CN 200410049179 A CN200410049179 A CN 200410049179A CN 1709019 A CN1709019 A CN 1709019A
Authority
CN
China
Prior art keywords
blade
rotary
spring
safe
mandrel
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
CNA2004100491796A
Other languages
Chinese (zh)
Inventor
郭栋梁
王和平
Original Assignee
王和平
陆康
宋达群
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 王和平, 陆康, 宋达群 filed Critical 王和平
Priority to CNA2004100491796A priority Critical patent/CN1709019A/en
Publication of CN1709019A publication Critical patent/CN1709019A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73Cutting apparatus
    • A01D34/736Flail type

Abstract

The present invention relates to a safe rotary cutter blade which is high in efficiency, simple in structure, safe and reliable, specially it is suitable for rotary cutting machines of grass cutter and pruning machine. It is technically characterized by that said movable cutter blade is mounted between two rotary disks; said movable cutter blade can be outwards swung by means of centrifugal force and can be drawn backwards by means of spring.

Description

A kind of safe rotating blade
Affiliated technical field
The present invention relates to a kind of safe rotating blade, this novel blade efficient height, simple in structure, safe and reliable is particularly suitable for rotary knife cutter tools such as mower, pruner.
Background technology
At present, the rotating blade that rotary knife cutter tools such as mower, pruner are adopted has two kinds, and a kind of is the tightrope blade, and another kind is a hard blade.Tightrope blade safety but cutting efficiency is low, the hard blade cutting efficiency is high but dangerous.
Summary of the invention
In order to overcome the problem of existing rotating blade, the invention provides a kind of safe rotating blade.
The technical solution adopted for the present invention to solve the technical problems is: movable blades is installed between two rotating disks, and movable blades throws away by centrifugal force, regains by spring.
The invention has the beneficial effects as follows:
1) safety is good.
2) cutting efficiency height.
3) can be used for rotary knife cutter tools such as multiple mower, pruner.
Further specify specific structural features of the present invention below in conjunction with Figure of description and embodiment.
Description of drawings:
Fig. 1 is the elevation cross-sectional view of overall installation diagram of the present invention.
Fig. 2 is the vertical view of overall installation diagram of the present invention.
The specific embodiment of the present invention is:
1 is safe rotating blade mandrel among Fig. 1, Fig. 2, the 2nd, and top rotary table, the 3rd, the blade when being in off working state, the 4th, the blade when in running order, the 5th, lower rotary table, the 6th, central spindle of the spring, the 7th, spring, the 8th, blade mandrel.The annexation of this safe rotating blade is, safe rotating blade mandrel 1 is fixedly linked with top rotary table 2 and lower rotary table 5, between top rotary table 2 and lower rotary table 5, be fixedly connected with central spindle of the spring 6 and blade mandrel 8, on central spindle of the spring 6, be connected with spring 7, on blade mandrel 8, be rotatably connected to blade 3, one end of spring 7 is fixedlyed connected with central spindle of the spring 6, and the other end of spring 7 leans on mutually with blade 3 activities.
The operation principle of this safe rotating blade such as Fig. 1 are to shown in Figure 2, safe rotating blade mandrel 1 is linked to each other by the turning cylinder of rib-loop with the rotary knife cutter tool, when the turning cylinder of rotary knife cutter tool is static, blade 3 is being collected under the effect of spring 7 between top rotary table 2 and the lower rotary table 5, and this moment, blade 3 can not cause unexpected injury (particularly to child etc.); When the turning cylinder high speed rotating of rotary knife cutter tool; blade 4 throws away under action of centrifugal force outside the radius of top rotary table 2 and lower rotary table 5; this moment, blade 4 was in the cutting duty; running into hard thing (as stone etc.) time when blade 4 can back shrink; so both protected blade 4, and also can not damage the user.

Claims (1)

1, a kind of safe rotating blade, it is characterized in that: safe rotating blade mandrel 1 is fixedly linked with top rotary table 2 and lower rotary table 5, between top rotary table 2 and lower rotary table 5, be fixedly connected with central spindle of the spring 6 and blade mandrel 8, on central spindle of the spring 6, be connected with spring 7, on blade mandrel 8, be rotatably connected to blade 3, one end of spring 7 is fixedlyed connected with central spindle of the spring 6, and the other end of spring 7 leans on mutually with blade 3 activities.
CNA2004100491796A 2004-06-18 2004-06-18 Safety rotary blade Pending CN1709019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2004100491796A CN1709019A (en) 2004-06-18 2004-06-18 Safety rotary blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2004100491796A CN1709019A (en) 2004-06-18 2004-06-18 Safety rotary blade

Publications (1)

Publication Number Publication Date
CN1709019A true CN1709019A (en) 2005-12-21

Family

ID=35705359

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2004100491796A Pending CN1709019A (en) 2004-06-18 2004-06-18 Safety rotary blade

Country Status (1)

Country Link
CN (1) CN1709019A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103238411A (en) * 2012-02-10 2013-08-14 本田技研工业株式会社 Lawn mower
CN106912247A (en) * 2015-12-25 2017-07-04 南京德朔实业有限公司 Hay mover

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103238411A (en) * 2012-02-10 2013-08-14 本田技研工业株式会社 Lawn mower
CN103238411B (en) * 2012-02-10 2016-06-08 本田技研工业株式会社 mower
CN106912247A (en) * 2015-12-25 2017-07-04 南京德朔实业有限公司 Hay mover
CN106912247B (en) * 2015-12-25 2019-04-19 南京德朔实业有限公司 Grass trimmer

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication