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CN101965771A - Lawn mower - Google Patents

Lawn mower Download PDF

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Publication number
CN101965771A
CN101965771A CN 201010261032 CN201010261032A CN101965771A CN 101965771 A CN101965771 A CN 101965771A CN 201010261032 CN201010261032 CN 201010261032 CN 201010261032 A CN201010261032 A CN 201010261032A CN 101965771 A CN101965771 A CN 101965771A
Authority
CN
China
Prior art keywords
output shaft
blade
mower
tooth
pressure head
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
Application number
CN 201010261032
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Chinese (zh)
Other versions
CN101965771B (en
Inventor
许海深
聂方杰
王向东
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.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
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 Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Priority to CN2010102610329A priority Critical patent/CN101965771B/en
Publication of CN101965771A publication Critical patent/CN101965771A/en
Application granted granted Critical
Publication of CN101965771B publication Critical patent/CN101965771B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a lawn mower, belonging to a lawn mower cutting device. The lawn mower comprises a rotating speed output shaft, a cutter blade, a quick clamp, a restoring device and at least two engaging elements, wherein the quick clamp is suitably used for clamping the cutter blade o the output shaft and comprises a shaft sleeve and a pressure head which are suitably installed on the output shaft and are respectively located on both sides of the cutter blade, one end of the shaft sleeve toward the inner side face of the cutter blade is provided with a round table shaped groove, the pressure head comprises a ring body capable of penetrating through a cutter blade installing hole from the outer side face of the cutter blade and stretching into the round table shaped groove, and a first tooth-shaped part is located on the outer circumferential face of the ring body; the restoring device is arranged to apply a restoring force to the shaft sleeve to face toward the inner side face of the cutter blade; and the two engaging elements are connected with the output shaft and can move along the direction perpendicular to the axial direction of the output shaft, each engaging element is provided with an outer surface and an inner surface, a second tooth-shaped part is located on the inner surface of the engaging element and is engaged with a first tooth-shaped part. The lawn mower has the advantages of simple structure, convenient disassembly and assembly, small operating force, easy and quick cutter blade disassembly and assembly by hand and reliable cutter clamping.

Description

Mower
Technical field
The present invention relates to a kind of mower, relate in particular to a kind of correlation technique of installation of mower blade.
Background technology
Fixed form by motor-operated mowing blade in present mower power and the executive system all is to use thread part to press-fit, blade is fixedly clamped on motor output shaft by last location-plate, following location-plate, at last at the terminal nut of installing of output shaft, rely on nut with the blade fixation, nut is the vital part of fixed blade.Blade is difficult for loosening when working in order to ensure mower, in blade fixedly the time, usually all by instruments such as spanners with fixing very fastening of nut, so just cause when breaking down or need safeguard mower, replacing blade, just very difficult for operating personnel's dismounting blade that strength is big inadequately, must screw nut ability removal of inserts by aids such as spanners, if strength control is bad as firmly too big or too quicklyly be easy to cause the user injured when the dismounting blade, makes troubles even injure to the operator.Utility model patent ZL200620106980.4 discloses a kind of Lawn mower blade fastening bolt, only the wearability of bolt is improved, the fixed form of mower blade still adopts the fixing mode of screw thread, does not fundamentally solve the not easy-to-dismount problem of mower blade.
Summary of the invention
Technical problem to be solved by this invention provides a kind of mower blade that does not need to finish the dismounting of mower blade by instrument and presss from both sides soon, only with hand is dismounting blade quickly and easily just, and action required power is little, and reliable clamping blade, simple in structure, easy accessibility.
For solving the problems of the technologies described above, the technical solution used in the present invention is a kind of mower, comprises: a rotating speed output shaft; One blade has a medial surface and a lateral surface and has an installing hole; One is suitable for blade is clamped in fast folder on the output shaft, fast folder comprises: be suitable for being contained on the output shaft and lay respectively at the axle sleeve and the pressure head of blade both sides, be provided with round table-like groove at axle sleeve towards an end of blade medial surface, pressure head comprises one and can pass the blade installing hole and stretch into the torus of round table-like groove from the blade lateral surface, and first parts of tooth is positioned on the toric outer peripheral face; One is set to axle sleeve and applies return mechanism towards the restoring force of blade medial surface; At least two joggle pieces, it is connected in output shaft also can be along moving perpendicular to the axial direction of output shaft, joggle piece has and is suitable for the outer surface that contacts with the inner peripheral surface of round table-like groove and towards the inner surface of output shaft, and second parts of tooth is positioned on the inner surface of joggle piece and is suitable for meshing with first parts of tooth.
Structure of the present invention need not by any aid, and only with hand is dismounting blade quickly and easily just, and action required power is little, and reliable clamping blade, and is simple in structure, easy accessibility.
Description of drawings
Schematic diagram when Fig. 1 is the not charged cover of mower.
Fig. 2 is the explosive view of the fast clamping structure of the fast a kind of first-selected embodiment that presss from both sides of mower blade of the present invention.
Fig. 3 is the structural representation of the fast folder of mower blade among Fig. 2.
Fig. 4 is an A portion enlarged drawing among Fig. 3.
Among the figure, 1, motor; 2, motor output shaft; 2-1, through hole; 3, axle sleeve; 3-1, round table-like groove; 3-2, through hole or groove; 3-3, platen; 4, joggle piece; 4-1, tooth-shape structure; 4-2, through hole; 5, blade; 5-1, locating hole; 6, spring; 7, pin; 8, pressure head; 8-1, handheld terminal; 8-2, torus; 8-3, tooth-shape structure; 8-4, dop; 9, movement clearance; 10, go up cutting ferrule;
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
Shown in for example is a kind of schematic diagram of common mower as Fig. 1.As shown in Figure 2, the cutter sweep of mower comprises the mowing blade 5 that motor 1 is connected with axle head as the motor output shaft 2 of mower rotating speed output shaft usually, thereby the rotation of driven by motor mowing blade is mowed.Common mower is except directly being contained in blade on the motor output shaft as shown in Figure 2, transmission device can also be set between motor output shaft and blade change the rotating speed of motor output to obtain suitable rotating speed of flail, wherein blade is installed on the output shaft of transmission device, and this moment, the output shaft of transmission device was the mower rotating speed output shaft.Common mower also may be other forms of power drive except motor-driven.
The fast folder of the blade of mower of the present invention is applicable to the mower that various employing rotating blades cut, to be used for that blade is fixed in a rotating speed output shaft that rotates around axis.
As Fig. 2, Fig. 3, shown in Figure 4 be the fast clamping structure of a kind of first-selected embodiment of the fast folder of mower blade of the present invention, and be example to be contained on the motor output shaft, wherein Fig. 3 and 4 shows fast clamping structure blade is fixed on state on the output shaft, and Fig. 2 shows the explosive view of fast folder and blade.
Press from both sides the position relation of each several part when the clamping blade for clear description is fast, at first be in the clamp position that blade is clamped on the output shaft below fast folder is described with fast folder.In this first-selection embodiment, fast folder comprises axle sleeve 3 and the pressure head 8 that is sleeved on the motor output shaft 2 and lays respectively at blade 5 both sides, and this output shaft has an axis.
Pressure head 8 is positioned at blade 5 that side near the end of output shaft 2, i.e. the blade outside.The handheld terminal 8-1 that pressure head 8 is operated for the convenience of the user away from an end of blade.Pressure head 8 passes the installing hole on the blade and comprises the first-selected circumferential continuous torus 8-2 that is near the other end of blade, at the first parts of tooth 8-3 of all or part of outer peripheral face of torus 8-2 upper edge axial distribution, this first parts of tooth comprises at least one tooth.In other embodiments, also can adopt around axial circumferential discontinuous torus structure.In order to aim at the position of pressure head 8 and output shaft more easily, pressure head 8 has one and is suitable for being enclosed within the hole of exporting axle head.
Axle sleeve 3 is positioned at blade that side away from the end of output shaft 2, i.e. blade inboard.Axle sleeve 3 is provided with round table-like groove 3-1 vertically near an end of blade.This round table-like groove 3-1 has the bigger opening of a radius towards blade, and has an inner peripheral surface and have a gradient, i.e. axial slope vertically.Between the torus 8-2 of round table-like groove 3-1 and pressure head, be provided with two joggle pieces 4, joggle piece 4 cooperates with the inner peripheral surface of described round table-like groove 3-1 movably towards the outer surface of the round table-like groove 3-1 inner peripheral surface of axle sleeve, and has the axial slope with the axial slope basically identical of the inner peripheral surface of round table-like groove 3-1.Joggle piece 4 is provided with the suitable second parts of tooth 4-1 that cooperates with the tooth of described pressure head torus 8-2 outer peripheral face towards the inner surface of the torus 8-2 of pressure head, and this second parts of tooth comprises at least one tooth.Under the clamp position of fast folder, there is meshing relation between first parts of tooth and second parts of tooth.Also be provided with radial direction through hole 4-2 at joggle piece 4 (promptly radially) perpendicular to axial direction, one end of one pin 7 is contained among the through hole 4-2, also be provided with a through hole 2-1 on the motor output shaft 2, the mid portion of pin 7 passes through hole 2-1, this through hole 4-2 on the direction of the size axial along output shaft 2 greater than the diameter of pin 7, thereby allow the joggle piece 4 can be along axially moving within the specific limits, and allow joggle piece 4 perpendicular to axial directionly to move.In other embodiments, the connection between two joggle pieces and the output shaft can also connect by two independent pins, and perhaps pin directly is formed on one of joggle piece and output shaft, can certainly connect joggle piece and output shaft by the connected mode beyond the pin.One return mechanism is set to axle sleeve 3 and applies restoring force to be pressed to blade, thereby the inner peripheral surface of the round table-like groove of axle sleeve 3 is exerted pressure to joggle piece, make it have trend that the axis towards output shaft moves so that toric first parts of tooth of second parts of tooth of joggle piece and pressure head 8 is meshed and does not get loose.In the present embodiment, this return mechanism is specially a spring 6, spring 6 be enclosed on the output shaft and one with respect to output shaft 2 axial restraints between cutting ferrule 10 and the axle sleeve other end outside, and be in compressive state, thereby apply elastic pressure to axle sleeve.In other embodiments, return mechanism also can be specially the appropriate device of other types or element and/or install to apply restoring force to axle sleeve with other suitable manner.
In order in the blade rotary course, to limit the circumferential position of blade better with respect to output shaft, pressure head handheld terminal 8-1 also is provided with at least one protruding dop 8-4 first-selectedly on the contact-making surface of blade 5, in blade upper edge installing hole week at least one the locating hole 5-1 that matches with dop is set upwards, first-selected ground is located at dop 8-4 position outside joggle piece 4 range of movement.Handheld terminal 8-1 outer surface first-selection is circular-arc for ease of what hand.
Axle sleeve 3 other ends are provided with the platen 3-3 of being convenient to operate, platen 3-3 external diameter greater than the external diameter of an above-mentioned end of axle sleeve 3 so that the user push with hand.
The round table-like groove 3-1 of axle sleeve 3 is towards the radius of the bigger opening of the radius of the blade maximum radius greater than the outer surface of joggle piece 4, make end face at an end of the clamp position Lower shaft sleeve 3 of fast folder protrude in joggle piece 4 vertically and be pressed on the blade medial surface, and between joggle piece 4 and blade medial surface, form an axial movement clearance 9.In other embodiments, if be provided with pad between blade and axle sleeve, the end face of an end of axle sleeve also can be pressed on the pad.
Lucid and lively furtherly below folder is transformed into the course of work of releasing orientation from clamp position.When the user pushes axle sleeve 3 with a hand on away from the direction of blade medial surface, the elasticity that axle sleeve 3 overcomes spring 6 moves away from the direction of blade medial surface along axial court, cause the inner peripheral surface of the round table-like groove of axle sleeve 3 no longer to be exerted pressure to joggle piece 4, and along with axle sleeve 3 gap occurs between the outer surface of the inner peripheral surface of the round table-like groove of blade medial surface and joggle piece 4 further away from each other, the handheld terminal 8-1 that this moment, the user another held pressure head 8 rocks gently, thereby 4 of joggle pieces can be perpendicular to axial direction move second parts of tooth that makes joggle piece 4 and first parts of tooth of pressure head 8 breaks away from engagement to the direction away from axis, the removable pressure head of user just can take off blade at this moment then.
Blade to be clamped on the output shaft, overcome spring pressure earlier and push axle sleeve, blade is placed on the end face of axle sleeve one end, the torus of pressure head is passed dop that the blade installing hole makes pressure head simultaneously to be aimed at the locating hole of blade and then torus is inserted between the joggle piece and can't continue to insert until pressure head, unclamping axle sleeve makes round table-like groove inwardly press second mate of joggle piece to make toric first parts of tooth engagement of itself and pressure head, also exert pressure with respect to joggle piece owing to axle sleeve simultaneously to the blade medial surface, pressure head is pushed outwardly, thereby further strengthened the engagement between first parts of tooth and second parts of tooth, blade has been clamped on the output shaft securely.
For the ordinary skill in the art, can be readily appreciated that in other embodiments, joggle piece is not limited only to two, can also be three or more, along direction setting perpendicular to axial direction.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.

Claims (12)

1. mower comprises:
One rotating speed output shaft;
One blade has a medial surface and a lateral surface and has an installing hole;
It is characterized in that described mower also comprises one and is suitable for blade is clamped in fast folder on the described output shaft, described fast folder comprises:
Be suitable for being contained on the described output shaft and lay respectively at the axle sleeve and the pressure head of blade both sides, be provided with round table-like groove at described axle sleeve towards an end of blade medial surface, described pressure head comprises one and can pass the blade installing hole and stretch into the torus of round table-like groove from the blade lateral surface, and first parts of tooth is positioned on the described toric outer peripheral face;
One is set to axle sleeve and applies return mechanism towards the restoring force of blade medial surface;
At least two joggle pieces, it is connected in output shaft also can be along moving perpendicular to the axial direction of output shaft, described joggle piece has and is suitable for the outer surface that contacts with the inner peripheral surface of described round table-like groove and towards the inner surface of output shaft, and second parts of tooth is positioned on the inner surface of described joggle piece and is suitable for and the engagement of described first parts of tooth.
2. mower as claimed in claim 1 is characterized in that, described round table-like groove is towards the radius of the maximum open of the blade medial surface maximum radius greater than described joggle piece outer surface.
3. mower as claimed in claim 1 is characterized in that, described pressure head comprises one and is positioned at handheld terminal described blade lateral surface, that be suitable for operating.
4. mower as claimed in claim 1 is characterized in that, the other end of described axle sleeve is provided with one and is suitable for manual platen.
5. mower as claimed in claim 1 is characterized in that, described torus is circumferential continuous structure.
6. mower as claimed in claim 1 is characterized in that, described joggle piece is connected in output shaft movably on the axial direction of output shaft.
7. mower as claimed in claim 1 is characterized in that, described return mechanism is a spring.
8. as each described mower of claim 1-7, it is characterized in that described first and second parts of tooth all comprise at least one tooth.
9. mower as claimed in claim 8 is characterized in that described blade upwards has at least one locating hole in installing hole week, and described pressure head comprises the dop that is suitable for at least one cooperation of described locating hole.
10. mower as claimed in claim 8 is characterized in that, the power source of described mower is a motor.
11. mower as claimed in claim 10 is characterized in that, described rotating speed output shaft is a motor output shaft.
12. mower as claimed in claim 8 is characterized in that, described mower comprises a power source and a transmission device, and described rotating speed output shaft is the output shaft of this transmission device.
CN2010102610329A 2010-08-24 2010-08-24 Lawn mower Expired - Fee Related CN101965771B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102610329A CN101965771B (en) 2010-08-24 2010-08-24 Lawn mower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102610329A CN101965771B (en) 2010-08-24 2010-08-24 Lawn mower

Publications (2)

Publication Number Publication Date
CN101965771A true CN101965771A (en) 2011-02-09
CN101965771B CN101965771B (en) 2012-01-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102610329A Expired - Fee Related CN101965771B (en) 2010-08-24 2010-08-24 Lawn mower

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104094727A (en) * 2013-04-03 2014-10-15 苏州宝时得电动工具有限公司 Mowing machine
CN104938137A (en) * 2015-05-21 2015-09-30 池上剑 Mower convenient to adjust
CN107211643A (en) * 2017-05-23 2017-09-29 安徽高老庄生态农业科技有限公司 A kind of weeder chopping disk being conveniently replaceable
CN108391500A (en) * 2017-02-08 2018-08-14 安德烈·斯蒂尔股份两合公司 Cutting head for electronic reaping hook

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918241A (en) * 1974-10-16 1975-11-11 Herbert C Stillions Cutting unit for rotary lawn mowers
US5117617A (en) * 1990-12-28 1992-06-02 Scap Power Equipment, Inc. Spindle assembly
US5383329A (en) * 1994-05-16 1995-01-24 Switchblade, Inc. Rotary lawn mower blade with replaceable cutting edge
JPH10117551A (en) * 1996-10-24 1998-05-12 Ryobi Ltd Lawn mower
CN101108427A (en) * 2006-07-20 2008-01-23 希尔蒂股份公司 Tool fitting for a disc-shaped tool
CN201174882Y (en) * 2007-06-13 2009-01-07 霍聚能 High performance mower
CN201781775U (en) * 2010-08-24 2011-04-06 南京德朔实业有限公司 Grass mower

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918241A (en) * 1974-10-16 1975-11-11 Herbert C Stillions Cutting unit for rotary lawn mowers
US5117617A (en) * 1990-12-28 1992-06-02 Scap Power Equipment, Inc. Spindle assembly
US5383329A (en) * 1994-05-16 1995-01-24 Switchblade, Inc. Rotary lawn mower blade with replaceable cutting edge
JPH10117551A (en) * 1996-10-24 1998-05-12 Ryobi Ltd Lawn mower
CN101108427A (en) * 2006-07-20 2008-01-23 希尔蒂股份公司 Tool fitting for a disc-shaped tool
CN201174882Y (en) * 2007-06-13 2009-01-07 霍聚能 High performance mower
CN201781775U (en) * 2010-08-24 2011-04-06 南京德朔实业有限公司 Grass mower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104094727A (en) * 2013-04-03 2014-10-15 苏州宝时得电动工具有限公司 Mowing machine
CN104094727B (en) * 2013-04-03 2016-05-18 苏州宝时得电动工具有限公司 Hay mover
CN104938137A (en) * 2015-05-21 2015-09-30 池上剑 Mower convenient to adjust
CN108391500A (en) * 2017-02-08 2018-08-14 安德烈·斯蒂尔股份两合公司 Cutting head for electronic reaping hook
CN107211643A (en) * 2017-05-23 2017-09-29 安徽高老庄生态农业科技有限公司 A kind of weeder chopping disk being conveniently replaceable

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Granted publication date: 20120125

Termination date: 20130824