CN101116393B

CN101116393B - Mower

Info

Publication number: CN101116393B
Application number: CN2006100991813A
Authority: CN
Inventors: 铃木敏行; 吉田贤一
Original assignee: Fuji Heavy Industries Ltd
Current assignee: Subaru Corp
Priority date: 2006-07-31
Filing date: 2006-07-31
Publication date: 2012-06-27
Anticipated expiration: 2026-07-31
Also published as: CN101116393A

Abstract

The invention provides a cropper which enables a cutter to rotate for cutting. The cropper comprises a main body of the cropper; a support arranged on the main body of the cropper; a driven shaft is supported in the main body of the cropper in a free rotation mode and is connected with the cutter; a connector at the driven side is arranged on the main body of the cropper and can be freely disassembled to arrange either a connector at the motor output side or a connector at the electromotor output; a connection component at the driven side which is connected on the driven shaft inside the connector at the driven side and is connected with either the connection component at the driven side of the motor arranged on the output shaft of the motor or the connection component at the driven side of the electromotor arranged on the output shaft of the electromotor; an auxiliary component which can be freely disassembled and is arranged correspondingly to the selected motor or electromotor to provide support to the drive of the motor or the electromotor.

Description

Mower

Technical field

The present invention relates to a kind of mower, it can utilize in engine and the electromotor any as power source, drives cutter.

Background technology

For grass or herbage etc. under the tree of the weeds of footpaths between fields, mountain forest etc. are cut, use the mower that also is called as brush cutting machine.In the mower, the arm connecting-type of cutter being installed, power source being installed in the rear end is arranged at the front end of motion arm, and the straight ejector half that cutter directly is installed on the output shaft of power source, as power source, the situation of using engine and the situation of using electromotor are arranged.

As being the mower of power source with the electromotor, be mostly for example in patent documentation 1 record such, at the front end of motion arm the directly straight ejector half of installation cutter is installed on electromotor, the axle at electromotor.In addition, as being the mower of power source with the engine, be mostly for example in patent documentation 2 record such, at the front configuration cuts device of motion arm, at the arm connecting-type of another distolateral configuration engine.

Install in cutter, the arm connecting-type in the front of motion arm at another distolateral installation engine; Have with engine carry backpack on bearing pallet, that the belt that will be installed in the ring-type on the motion arm is hung piggyback shoulder is hanging and will be installed in handle on the motion arm being held in the handle type operated in the hand etc., handle has ring-shaped handle and both hands handle.

Be installed in the cutter on these mowers, have the discoideus steel edge that is provided with a plurality of blades, on the steel edge,, 4 swords, 8 swords and 30 or above blade are set with zigzag according to the difference of sword number.Steel edge uses the single-blade formula mostly, promptly only in the side of a direction side of the direction of rotation of blade the cut-out edge of a knife is set.Be installed on the mower at the cutter with this single-blade formula, under the situation of the operation of mowing, the cutter through making rotation is almost mobile abreast with ground, and the cut-out edge of a knife and the weeds etc. of the blade of direction of advance side are contacted, and it is cut.

Patent documentation 1: real opening put down the 5-2620 communique

Patent documentation 2: the spy opens the 2004-8054 communique

Summary of the invention

With the mower of electromotor as power source; Have power connector is connected the power supply connecting type that uses on the source power supply terminal; With battery-mounted battery-mounting formula; Be present under the situation in closer place, field of employment at the source power supply terminal and can use the power supply connecting type, but can not directly use in the place that does not have power supply terminal, use just needs generator.On the other hand, the mower of battery-mounting formula is limited owing to battery capacity, thereby must carry out the operation of communicating battery or charging.Relative therewith; With the mower of engine as power source, have under the situation that does not have the source power supply terminal from closer place, field of employment and also can use, and; Through postcombustion can long-time operation advantage, but the engine noise during operation is bigger than electric motor driven situation.

Like this, though the mower of motor-type does not produce big noise, under the situation of using source power supply, the field of employment is limited, and under the situation of using battery, must change the operation of battery or charging.Relative therewith; Though do not have near the mower of engine type grass or herbage under to the tree of mountain forest are cut etc. can to use for a long time under the situation of power supply terminal yet; But when cutting the operation of weeds, can also transmit noise to contiguous occupant in the intensive region of dwelling house.The user of mower selects any in electrodynamic type and the engine type according to environment for use, but environment for use is limited because of power source.

General mower; Safety in order to ensure the operator; Mode with operator's side of covering cutter is installed lid; Have the blade of grass of the weeds etc. of cutting to be wrapped between cutter and the lid, the situation that cutter is stopped the rotation by locking, the weeds that are not cut in addition etc. are wrapped on the rotating shaft of lid or cutter or blade gulps down into foreign matter such as trees and cutter by the situation of locking.

Like this because of cutters such as blade of grass by the situation of locking under; In the prior art; Must make the action of power source make the cutter counter-rotating through hand operated after stopping, removing the blade of grass that is wrapped on the cutter etc., be difficult to safety and easily carry out blade of grass and remove operation.

In the arm-type mower of the cutter that one chip is installed, for example, the operator through after arm being back to the position that direction to the right brandishes from its position left direction brandish, make cutter move the operation of mowing simultaneously to direction left from right-hand.Swing arm and after mowing, the operator move forward and likewise arm is back to right-hand to after left direction brandish, make cutter from the right-hand operation of when direction moves, mowing left.The reciprocating swing that the operator carries out arm repeatedly is until the mowing of the mowing pasture that finishes regulation, when cutter is overlooked under the situation of anticlockwise, the left that blade of grass is blown to the operator to.

At mowing pasture is under the situation obliquely as the dykes and dams on riverbank; The operator is along the dykes and dams operation of mowing in mobile of advancing in the position of much at one height; When under the low state in left side, mowing operation, blade of grass is blown to low direction obliquely.Advance move to the terminal of mowing pasture after, the operator is for the mowing operation of the adjacent area in the zone that has been cut, and must turn back to original position.This be because, if do not turn back to original position, but the counter-rotating health carries out the mowing operation of adjacent area, then blade of grass is blown in the other direction promptly high direction obliquely.Therefore, want whole blades of grass is blowed to low direction obliquely, the operator must turn back to original position, has the problem of operability difference.

The objective of the invention is, can be according to environment for use with in engine and the electromotor any as power source, mower is driven.

Another object of the present invention is, can in engine and the electromotor any be driven as power source according to environment for use, simultaneously when driving by electromotor cutter because of blade of grass etc. by locking in, can easily remove locking.

A further object of the present invention is, can in engine and the electromotor any be driven as power source according to environment for use, when being driven by electromotor, can blade of grass be blowed to any direction of the left and right sides of operator simultaneously.

Mower of the present invention makes cutter rotation and mows, and it is characterized in that having: the mower main body; Support, it is installed on the said mower main body, but supports said cutter with free rotation mode; Driven shaft, but its be supported in the said mower main body with free rotation mode, be connected with said cutter; The slave end joint; It is installed on the said mower main body; Simultaneously, with the mode that can freely dismantle, installation is arranged at the engine outlet side joint on the motor body of accommodating engine and is arranged at any in the electromotor outlet side joint on the motor field frame of accommodating electromotor; The slave end attaching parts; It is connected with said driven shaft in said slave end joint; Simultaneously, with the output shaft that is arranged at said engine on driving side attaching parts and the output shaft that is arranged at said electromotor of engine on the driving side attaching parts of electromotor in any be connected; And the accessory that can freely dismantle, it is equipped corresponding to the said engine of optionally installing or said electromotor, and its driving is assisted.

Mower of the present invention is characterised in that said accessory is a battery, and it is mounted when said electromotor optionally is installed on the said mower main body, drives said electromotor.

Mower of the present invention is characterised in that said battery is installed on the said electromotor with slidingtype.

Mower of the present invention is characterised in that; Said accessory is the engine speed adjuster; It is mounted when said engine optionally is installed on the said mower main body, is connected with the choke valve of said engine, can adjust the rotating speed of said engine.

Mower of the present invention is characterised in that said engine speed adjuster is installed on the said mower main body with the mode that can freely dismantle, is connected with said choke valve through cable.

Mower of the present invention is characterised in that; Said engine speed adjuster is made up of support and bar; Said support is installed on the said mower main body with the mode that can freely dismantle, and said bar is supported on the said support with mode free to rotate, and is connected with said cable.

Mower of the present invention is characterised in that said accessory is the motor speed adjuster, and it is mounted when said electromotor optionally is installed on the said mower main body, is connected with said electromotor, can adjust the rotating speed of said electromotor.

Mower of the present invention is characterised in that said motor speed adjuster is installed on the said mower main body with the mode that can freely dismantle, utilizes electric wire to be connected with said electromotor.

Mower of the present invention is characterised in that said motor speed adjuster is by constituting with the lower part: support, and it is installed on the said mower main body with the mode that can freely dismantle; Functional unit, it is supported on the said support with the mode that can move freely; And variable resistance, it utilizes said functional unit to be operated, and makes the drive current variations of supplying with to said electromotor from power supply.

Mower of the present invention is characterised in that; Said cutter has the blade of twolip formula; Simultaneously, said accessory is a change-over switch, and it is mounted when said electromotor optionally is installed on the said mower main body; In order to switch the direction of rotation of said cutter, the direction of rotation of said electromotor is switched.

Mower of the present invention is characterised in that said change-over switch is installed on the handle of said mower main body with the mode that can freely dismantle, and is connected with said electromotor through cable.

Mower of the present invention is characterised in that said accessory is a change-over switch, and it is mounted when said electromotor optionally is installed on the said mower main body, when said cutter locking, makes said electromotor counter-rotating.

The effect of invention

According to the present invention, owing to can be optionally in engine and the electromotor any be installed on the mower main body, thereby can use the cutter of Motor Drive mower when can use the cutter of motor driven mower.Therefore, through preparing respectively engine and electromotor as annex, can be according to the environment for use of the operation of mowing with mower as any use in engine-driven and the Motor Drive formula.In addition, the user with mower main body and engine or electromotor are bought as a cover through other purchase electromotor or engine, can switch to mower engine-driven or switch to electrodynamic type from engine-driven from electrodynamic type.

Through making the mower main body is the motion arm that is provided with handle, and the operator can carry out manual operation and the operation of mowing to motion arm.As mower, can be backpack or take on hanging.

In addition; According to the present invention; Because the mode that the battery of drive motor can freely be dismantled with slidingtype along the direction of principal axis of output shaft is installed in the peripheral part of electromotor, thereby can battery be taken off and charges with the monomer mode from electromotor, can make the charging operations of battery become easy.In addition because battery is installed in the peripheral part of electromotor, even thereby battery is installed, the position of centre of gravity of electromotor can axially not change with respect to driven shaft yet, can improve the operability of mower thus.Roughly be in the shape of the letter V if battery is formed along the section of the peripheral part of electromotor, then can make the position of centre of gravity of position of centre of gravity and electromotor of battery approaching, can improve the operability of mower more.

Because the engine speed adjuster is connected with engine through cable, the motor speed adjuster is connected with electromotor through electric wire, thereby, can make the operation that engine or electromotor are installed on the mower main body become easy.In addition, with when engine or motor mounting are on the mower main body, can not need carry out the operation of initial setting speed adjustment device.Can make its fitting operation become easy.When engine being installed on the mower main body, owing to need not carry out the idler revolutions adjustment of engine according to the engine speed adjuster, thereby can make the operation that engine is installed on the mower main body become easy.With when motor mounting is on the mower main body, owing to need not connect motor speed adjuster and electromotor, thereby can prevent the bad connection between motor speed adjuster and the electromotor.

According to the present invention, by the Motor Drive cutter time, blade of grass etc. are wrapped on the cutter, under the situation that the rotation of cutter is stopped, through operation locking cancel switch, can make the cutter counter-rotating, can easily remove the blade of grass that is wrapped on the cutter etc.

According to the present invention, through forming the mower main body by the motion arm that handle is set, the operator can be through controlling the operation of mowing of handle manipulation operations arm.The locking cancel switch that is connected on the electromotor can be installed on the handle with the mode that can freely dismantle through support, through the locking cancel switch is set on handle, can the locking cancel switch be operated controlling under the state of handle, and operability is good.

According to the present invention; By the Motor Drive cutter time; The cutter that all forms the blade that cuts off the edge of a knife on any direction that has in positive veer and reverse directions is being installed on the mower main body; Can make cutter optionally to positive and negative any direction rotation, can blowing of blade of grass be scraped direction setting thus is any direction of the left and right sides.Therefore; For example; Move simultaneously cutting when being grown in the weeds that go up obliquely the as dykes and dams on riverbank the operator along dykes and dams, when under the low state in left side, mowing operation and under the low state in right side, mow when operating, reverse through the direction of rotation that makes cutter; Proceed the operation of mowing even the operator reverses health, also can carry out blade of grass is blowed to continuously the mowing operation of the lowland side of dykes and dams.

According to the present invention, through forming the mower main body by the motion arm that handle is set, the operator can be through controlling the operation of mowing of handle manipulation operations arm.Change-over switch can be installed on the handle with the mode that can freely dismantle through support, near the handle portion through change-over switch being arranged on handle, can change-over switch be operated controlling under the state of handle, and operability is good.

Description of drawings

Fig. 1 is the stereogram of the mower of expression the 1st embodiment of the present invention, (A) is illustrated in the state that engine is installed on the mower main body, (B) is illustrated in the state that electromotor is installed on the mower main body.

Fig. 2 is the local amplification view of the mower shown in the presentation graphs 1 (A).

Fig. 3 is the local amplification view of the mower shown in the presentation graphs 1 (B).

Fig. 4 (A) is the front view of the detailed structure of expression engine, (B) is the end view of the engine shown in this figure (A).

Fig. 5 (A) is the front view of the detailed structure of expression electromotor, (B) is the end view of the engine shown in this figure (A).

Fig. 6 is the key diagram that expression is installed in battery the order on the electromotor shown in Figure 5.

Fig. 7 (A) is the front view of the detailed structure of expression slave end joint, (B) is the end view of the slave end joint shown in this figure (A).

Fig. 8 is the sectional elevation of Fig. 2.

Fig. 9 is the stereogram of the mower of expression the 2nd embodiment of the present invention, (A) is illustrated in the state that engine is installed on the mower main body, (B) is illustrated in the state that electromotor is installed on the mower main body.

Figure 10 is the local amplification view of the mower shown in the presentation graphs 9 (A).

Figure 11 is the local amplification view of the mower shown in the presentation graphs 9 (B).

Figure 12 is the front view of the detailed structure of expression engine.

Figure 13 is the front view of the detailed structure of expression electromotor.

Figure 14 (A) is the end view of the detailed structure of expression slave end joint, (B) is the front view of the slave end joint shown in this figure (A).

Figure 15 is that expression engages the cutaway view with the joint construction of groove and engaging lever.

Figure 16 is the sectional elevation of Figure 10.

Figure 17 is the stereogram of the detailed structure of expression engine speed adjuster shown in Figure 12.

Figure 18 is the stereogram of the detailed structure of expression motor speed adjuster shown in Figure 13.

Figure 19 is arranged on the circuit diagram of the variable resistance in the motor speed adjuster shown in Figure 180.

The state that engine is installed on the mower main body of Figure 20 (A) expression the 3rd embodiment (B) is illustrated in the state that electromotor is installed on the mower main body.

Figure 21 is the local amplification view of the mower shown in expression Figure 20 (A).

Figure 22 (A) is the front view of engine, (B) is the end view of the engine shown in Figure 22 (A).

Figure 23 is the local amplification view of the mower shown in expression Figure 20 (B).

Figure 24 (A) is the front view of electromotor, (B) is the end view of the electromotor shown in Figure 24 (A).

Figure 25 (A) is the front view of slave end joint, (B) is the end view of the slave end joint shown in Figure 25 (A).

Figure 26 is the sectional elevation of Figure 21.

Figure 27 (A) amplifies the stereogram that is arranged on the change-over switch on the handle shown in expression Figure 20 (B), (B) is the circuit diagram of change-over switch.

Figure 28 (A) is the plane of the cutter of single-blade formula, (B) is the plane of the cutter of twolip formula.

Figure 29 (A) is that expression utilizes the mow skeleton diagram of order of operation of the cutter of twolip formula, (B) is that expression utilizes the mow skeleton diagram of order of operation of the cutter of single-blade formula.

The state that engine is installed on the mower main body of Figure 30 (A) expression the 4th embodiment (B) is illustrated in the state that electromotor is installed on the mower main body.

Figure 31 is the local amplification view of the mower shown in expression Figure 30 (A).

Figure 32 (A) is the front view of engine, (B) is the end view of the engine shown in this Figure 32 (A).

Figure 33 is the local amplification view of the mower shown in expression Figure 30 (B).

Figure 34 (A) is the front view of electromotor, (B) is the end view of the electromotor shown in Figure 34 (A).

Figure 35 (A) is the front view of slave end joint, and Figure 35 (B) is the end view of the slave end joint shown in Figure 35 (A).

Figure 36 is the sectional elevation of Figure 31.

Figure 37 (A) amplifies the stereogram that is arranged on the locking cancel switch on the handle shown in expression Figure 30 (B), and Figure 37 (B) is the circuit diagram that expression has the electromotor circuit for reversing of locking cancel switch.

Embodiment

The 1st embodiment

Below, according to Fig. 1 to Fig. 8 this embodiment is carried out detailed explanation.Fig. 1 is the stereogram of the mower of expression the 1st embodiment of the present invention, and Fig. 1 (A) is illustrated in the state that engine is installed on the mower main body, and Fig. 1 (B) is illustrated in the state that electromotor is installed on the mower main body.Fig. 2 is the local amplification view of the mower shown in the presentation graphs 1 (A), and Fig. 3 is the local amplification view of the mower shown in the presentation graphs 1 (B).

Mower shown in Figure 1 is an arm connecting-type mower, has the motion arm 10 as the mower main body, and motion arm 10 is made up of the parts of hollow rod-shape, like Fig. 2, shown in Figure 3, but with free rotation mode driven shaft 11 is installed in inside.Front end mounting bracket 12 at motion arm 10; But on this support 12, discoideus metal system cutter 13 is installed with free rotation mode; Its outer peripheral face forms a plurality of jagged blades, and cutter 13, is connected with the front end of driven shaft 11 (omitting diagram) through bevel gear.At the leading section of motion arm 10, with the mode of the part that covers cutter 13 lid 14 is installed, to realize safety operation.In addition,, also can replace illustrated discoideus metal system cutter, use the cutter that constitutes by many cords from the radial extension of pivot as cutter 13.

Two grip 15 are installed on the length direction middle body of motion arm 10, and the operator can be through with the hands controlling handle 15, the operation of mowing.In addition, in the illustrated case, two grip 15 are installed on motion arm 10; Mower becomes the both hands handle type thus, but also can replace it, forms the bail handle formula; The shoulder of ring-type also can be installed on motion arm 10 hang the belt of usefulness, and it is hanging to make mower become shoulder.

The joint that the mowing pusher side is installed in the rear end of motion arm 10 is a slave end joint 16; Motion arm 10 utilizes the part of slave end joint 16, optionally with the mode that can freely dismantle engine 17 and any in the electromotor 18 shown in Fig. 1 (B) shown in Fig. 1 (A) is installed.

Fig. 4 (A) is the front view of the detailed structure of expression engine, and Fig. 4 (B) is the end view of the engine shown in this Fig. 4 (A), and Fig. 5 (A) is the front view of the detailed structure of expression electromotor, and Fig. 5 (B) is the end view of the engine shown in this Fig. 5 (A).In addition, Fig. 6 is the key diagram that expression is installed in battery the order on the electromotor shown in Figure 5.

As shown in Figure 4; As engine 17, use 4 stroke single-cylinder petrol engines, engine is installed in engine lid 21 is constituted parts (omitting diagram); But comprise with free rotation mode and support the crank box of the engine output shaft 22 that constitutes by crank axle shown in Figure 2 and be installed in the crank box; With cylinder that piston can free back and forth movement ground be installed etc., the gasoline in the fuel tank 23 are acted as a fuel, rotation drives engine output shaft 22.As shown in Figure 2, cooling fan 24 is installed on output shaft 22, if engine 17 moves, will produce the cooling air of cooled engine 17.Pilot engine for manual rotating output shaft 22, kick-starter is set, shown in Fig. 4 (B), can pilot engine 17 through the recoil handle 25 that stretches.

On the other hand; As shown in Figure 5; Electromotor 18 has the roughly motor field frame 26 of hexagon prism shape, on motor field frame 26, but supports the motor output shaft 27 that is made up of armature shaft shown in Figure 3 with free rotation mode; Electromotor is installed in motor field frame 26 is constituted parts, comprise (omitting diagram) such as the armature that is fixed on the motor output shaft 27 and the magnet relative with armature.In addition, at the peripheral part of electromotor 18 battery 28 is installed, this battery 28 for example is TunePowers such as lithium ion battery, and electromotor 18 utilizes from the electric power of these battery 28 supplies and driven.

As shown in Figure 5; The section vertical of battery 28 with direction of principal axis; With mode along the peripheral part of motor field frame 26; Form roughly V font, 3 lower surfaces of the side 28a of the inboard of battery 28 and motor field frame 26 are relative, and the side 28b in the outside forms with the mode that the two sides with motor field frame 26 link to each other.As shown in Figure 6; At two fore-ends of the V of battery 28 font, promptly on the boundary member of the side 28b in inboard side 28a and the outside; Form the slot 28c that axially extends; Bottom in two sides of motor field frame 26 is extended abreast with output shaft 27 and is formed the 26a of pair of guide rails portion of the holding section that conduct engages with these slots 28c.If the slot 28c of engaging battery 28 on the rail portion 26a of motor field frame 26; Battery 28 is slided with respect to electromotor 18 on direction of principal axis; Retainer 31 until the end that is formed on slot 28c is connected on the end of rail portion 26a, and then battery 28 is installed on the peripheral part of electromotor 18.If battery 28 is installed on the electromotor 18, then the power supply terminal of battery 28 (omit diagram) is connected with power supply terminal (omitting diagram) on being arranged on electromotor 18, from electric 28 to electromotor 18 supply drive currents.In addition, on direction opposite when installing, slide, can unload battery 28 from electromotor 18 through making battery 28.Thus, the mode that battery 28 can freely be dismantled with slidingtype is installed on the peripheral part of electromotor 18, when battery 28 is charged, unloads battery 28 and utilizes not shown charger to charge from electromotor 18.

Like this, in this mower, owing to, be installed in the mode that can freely dismantle on the peripheral part of electromotor 18, thereby can unload battery 28 and charge, can make the charging operations of battery 28 become easy from electromotor 18 with the battery 28 of drive motor 18.In addition; Because the peripheral part at electromotor 18 is installed battery 28 along the direction of principal axis slidingtype ground of output shaft 27, so, even battery 28 has been installed; The position of centre of gravity of electromotor 18 can axially not change with respect to driven shaft 11 yet, can improve the operability of mower.And, because battery 28 is formed along the section of the peripheral part of electromotor 18 V font roughly, thereby make the position of centre of gravity of position of centre of gravity and electromotor 18 of battery 28 approaching on diametric(al), can further improve the operability of mower.

Fig. 7 (A) is the front view of the detailed structure of expression slave end joint, and Fig. 7 (B) is the end view of slave end joint shown in this figure (A).As shown in Figure 7, slave end joint 16 forms the cup-shaped of diameter greater than motion arm 10, is fixed on the rearward end of motion arm 10, on its openend, the flange part 16a of square shape is set.4 angles at flange part 16a form installing hole 16b respectively, can in these installing holes 16b, install and promptly insert the bolt 32 as secure component.In addition, shown in Fig. 7 (A), in the inside of slave end joint 16 clutch drum 33 as the slave end connecting portion is installed, as shown in Figure 2, this clutch drum 33 is fixed on the driven shaft 11, if clutch drum 33 rotations, then driven shaft 11 also rotates.

Shown in Fig. 4 (A); Engine outlet side joint 34 is set on engine lid 21; On engine outlet side joint 34, form 4 screw 34a, be screwed among these screws 34a through the bolt 32 that is installed on the flange part 16a, slave end joint 16 engages with engine outlet side joint 34.In addition; Leading section at engine output shaft 22 is provided with a pair of clutch hoof piece 35 as the driving side connecting portion; These clutch hoof pieces 35 are assembled in the engine outlet side joint 34, and are as shown in Figure 2, when slave end joint 16 engages with engine outlet side joint 34; These clutch hoof pieces 35 are assembled in the clutch drum 33, between driven shaft 11 and engine output shaft 22, constitute centrifugal clutch 36.

Like this,, engage, then shown in Fig. 1 (A), can engine 17 be installed on the motion arm 10 as the mower main body with engine outlet side joint 34 on being arranged at engine 17 if will be arranged on the slave end joint 16 on the motion arm 10.In addition; If slave end joint 16 is engaged with engine outlet side joint 34; Then because engine output shaft 22 is connected with driven shaft 11 through the centrifugal clutch 36 with clutch drum 33 and clutch hoof piece 35; So mower can be with engine 17 as power source, rotation drives cutter 13 and mows.

Shown in Fig. 5 (A); Electromotor outlet side joint 42 is set on motor field frame 26; On electromotor outlet side joint 42, form 4 screw 42a, be screwed among the screw 42a through the bolt 32 that is installed on the flange part 16a, slave end joint 16 engages with electromotor outlet side joint 42.In addition; Leading section at motor output shaft 27 is provided with a pair of clutch hoof piece 43 as the driving side connecting portion; These clutch hoof pieces 43 are assembled in the electromotor outlet side joint 42, and are as shown in Figure 3, at slave end joint 16 with when electromotor outlet side joint 42 engages; These clutch hoof pieces 43 are assembled in the clutch drum 33, between driven shaft 11 and output shaft 27, constitute centrifugal clutch 44.

Be arranged on the clutch hoof piece 43 on the electromotor outlet side joint 42; Through pin (omitting diagram); With mode free to rotate, be installed on the swivel plate 45 that is fixed on the motor output shaft 27, draft helical spring 46 is installed between each clutch hoof piece 43; Utilize this draft helical spring 46, apply to clutch hoof piece 43 and make the spring force of the 43a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 33.If the rotating speed of electromotor 18 rises, then clutch hoof piece 43 utilizes the spring force of centrifugal force antagonism draft helical spring 46 and opens, the inner peripheral surface of pushing clutch drum 33 and being connected with clutch drum 33.Thus, motor output shaft 27 becomes through centrifugal clutch 44 and driven shaft 11 direct-connected states.Be wrapped between cutter 13 and the lid 14 owing to grass; When the rotating speed of supplying with electromotor 18 under the state of drive currents from battery 28 descends; Clutch hoof piece 43 is disengaged with respect to the engaging of clutch drum 33, can prevent in electromotor 18, to flow through overcurrent.

Like this, if slave end joint 16 is engaged with electromotor outlet side joint 42, then shown in Fig. 1 (B), can electromotor 18 be installed on the motion arm 10 as the mower main body.In addition; If slave end joint 16 is engaged with electromotor outlet side joint 42; Then because motor output shaft 27 through having the centrifugal clutch 44 of clutch drum 33 and clutch hoof piece 43, is connected with driven shaft 11, so; Mower can be with electromotor 18 as power source, and rotation drives cutter 13 and mows.In addition, the label shown in Fig. 2 and Fig. 3 47 is seal members of rubber system.

Through such formation; Mower of the present invention is because the operator can optionally install any in engine 17 and the electromotor 18 for a motion arm 10; So through prior preparation mower main body is motion arm 10 and respectively as the engine 17 and the electromotor 18 of annex; Can be according to the environment for use of the operation of mowing, make mower become a certain in engine-driven and the Motor Drive formula, the operation of mowing.For example, in the place that does not require quietness, can be with engine 17 as the power source operation of mowing, in the place that requires quietness, can be with electromotor 18 as the power source operation of mowing, the user can select power source according to environment for use.In addition, the user with motion arm 10 and engine 17 are bought as a cover can switch to electrodynamic type with mower through buying electromotor 18 in addition.

The present invention is not limited to above-mentioned embodiment, can carry out various deformation in the scope that does not break away from its main points.For example of patent documentation 1; At motion arm 10 is that the front end of action bars is installed power source and by the mower of the straight ejector half of its driven cutter; Also can be suitable for the present invention, in this case, engine and electromotor are installed optionally in the housing of the front end that is installed in motion arm 10.And, the mower of the type of power source and cutter is installed on mobile chassis, equally also can be suitable for the present invention.

In addition, be not limited to structure shown in Figure 1, so long as can slave end joint 16 optionally be got final product with engine outlet side joint 34 and any attachment that engage in the electromotor outlet side joint 42 as attachment.For example; Also can be at the front end that the connecting rod on the slave end joint 16 is installed with the mode of freely rotating; With the mode that can freely rotate the bar with claw is installed, on engine outlet side joint 34 or electromotor outlet side joint 42, is formed projection, engaging is arranged on the claw on the bar.In addition, but also can be in the outside of slave end joint 16 with the free rotation mode installing sleeve, on engine outlet side joint 34 or electromotor outlet side joint 42, be provided with and be formed on the external screw thread of the internal screw-thread screw on the inner peripheral surface of sleeve.

In addition; In this embodiment; When slave end joint 16 is engaged with engine outlet side joint 34 or electromotor outlet side joint 42, constitute centrifugal clutch 36,44, but be not limited thereto; For example, also can centrifugal clutch be installed on engine outlet side joint 34 and the electromotor outlet side joint 42.In addition,, be not limited to centrifugal clutch, for example also can use engaged clutch etc. as the structure of the connection between slave end connecting portion and the driving side connecting portion.

The 2nd embodiment

Below, according to Fig. 9 to Figure 19 the 2nd embodiment of the present invention is carried out detailed explanation.Fig. 9 is the stereogram of the mower of expression the 2nd embodiment of the present invention, and Fig. 9 (A) is illustrated in the state that engine is installed on the mower main body, and Fig. 9 (B) is illustrated in the state that electromotor is installed on the mower main body.Figure 10 is the local amplification view of the mower shown in the presentation graphs 9 (A), and Figure 11 is the local amplification view of the mower shown in the presentation graphs 9 (B).

Mower shown in Figure 9 is an arm connecting-type mower, has the motion arm 210 as the mower main body, and motion arm 210 is made up of the parts of hollow rod-shape, like Figure 10, shown in Figure 11, but with free rotation mode driven shaft 211 is installed in inside.Front end mounting bracket 212 at motion arm 210; On this support 212; But with free rotation mode discoideus metal system cutter 213 is installed, its outer peripheral face forms a plurality of jagged blades, and cutter 213 is connected with the front end of driven shaft 211 (omitting diagram) through bevel gear.At the leading section of motion arm 210, with the mode of the part that covers cutter 213 lid 214 is installed, to realize safety operation.In addition,, also can replace illustrated discoideus metal system cutter, use the cutter that constitutes by many cords from the radial extension of pivot as cutter 213.

At the length direction middle body of motion arm 210 two grip 215 are installed, the operator can be through with the hands controlling handle 215, the operation of mowing.In addition; In the illustrated case; Mower becomes the both hands handle type through two grip 215 are installed on motion arm 210, but also can replace it and become the bail handle formula, and the shoulder that ring-type also can be installed on motion arm 210 is hung the belt of usefulness and mower become take on hanging.

The joint that the mowing pusher side is installed in the rear end of motion arm 210 is a slave end joint 216; Motion arm 210 utilizes the part of slave end joint 216, optionally with the mode that can freely dismantle engine 217 and any in the electromotor 218 shown in Fig. 9 (B) shown in Fig. 9 (A) is installed.

Figure 12 is the front view of the detailed structure of expression engine, and Figure 13 is the front view of the detailed structure of expression electromotor.

Shown in figure 12; As engine 217, use 4 stroke single-cylinder petrol engines, engine is installed in engine lid 221 is constituted parts (omitting diagram); But comprise with free rotation mode and support the crank box of the engine output shaft 222 that constitutes by crank axle shown in Figure 10 and be installed in the crank box; The cylinder of piston etc. is installed with mode that can free back and forth movement, is acted as a fuel with the gasoline in the fuel tank 223, rotation drives engine output shaft 222.Shown in figure 10, cooling fan 224 is installed on output shaft 222, if engine 217 moves, then can produce the cooling air of cooled engine 217.Pilot engine for manual rotating output shaft 222, kick-starter is set, shown in Fig. 9 (A), can pilot engine 217 through the recoil handle 225 that stretches.

Shown in figure 13; Electromotor 218 has the roughly motor field frame 226 of hexagon prism shape; On motor field frame 226; But support the motor output shaft 227 that constitutes by armature shaft shown in Figure 11 with free rotation mode, electromotor is installed motor field frame 226 in is constituted parts, comprise (omit and illustrate) such as the armature that is fixed on the motor output shaft 227 and the magnet relative with armature.In addition, at the peripheral part of electromotor 218 battery 228 as power supply is installed, this battery 228 for example is TunePowers such as lithium ion battery, and electromotor 218 utilizes the electric power of being supplied with by this battery 228 and driven.In addition, the mode that battery 228 can freely be dismantled with slidingtype is installed on the direction of principal axis of output shaft 227, when charging, unloads battery 228 and utilizes not shown charger to charge from electromotor 218.

Figure 14 (A) is the end view of the detailed structure of expression slave end joint, and Figure 14 (B) is the front view of the slave end joint shown in this figure of expression (A), and Figure 15 is that expression engages the cutaway view with the joint construction between groove and the engaging lever.

Shown in figure 14, slave end joint 216 forms the cup-shaped of diameter greater than motion arm 210, is fixed on the rearward end of motion arm 210.Shown in Figure 14 (B), in the inside of slave end joint 216, the clutch drum 231 as the slave end connecting portion is installed, shown in figure 10, this clutch drum 231 is fixed on the driven shaft 211, if clutch drum 231 rotations, then driven shaft 211 also rotates.In addition; The flange part 216a of square shape is set at the openend of slave end joint 216; Both sides at this flange part 216a; Through 232 modes free to rotate of pinning the pair of engaging bar 233 as attachment being installed, these engaging levers 233 have the 233a of bar portion that operated by the operator and depart from laterally simultaneously with respect to the engagement arm portion 233b of pin 232 to the opposition side protrusion of the 233a of bar portion with respect to the 233a of bar portion.

On the other hand; Shown in figure 12; On engine lid 221, be provided with and be installed in the engine outlet side joint 234 on the slave end joint 216, on this engine outlet side joint 234 with the mode that can freely dismantle; Setting is with the engaging recessed part 234a of cylindric depression, and slave end joint 216 utilizes the interface 216b that is arranged at the drum on its openend to be entrenched among the engaging recessed part 234a.In addition; On engine lid 221, the pair of engaging that forms the both sides that are positioned at engine outlet side joint 234 is with groove 235, and is shown in figure 15; These engage with groove 235 and form with L word sigmoid from peristome, and the rear side of engine lid 221 partly becomes snap-latch surface 235a.

If engine outlet side joint 234 is installed on slave end joint 216; Then as representing with chain-dotted line among Figure 15; The engagement arm portion 233b that is positioned at the engaging lever 233 of removing the position is projecting inward with groove 235 to engaging; If engaging lever 233 is rotated to the bonding station that solid line is represented the figure by clockwise direction among the figure from this state, then engagement arm portion 233b is fastened on the snap-latch surface 235a that engages with groove 235.In addition, at the set inside latch 236 that engages with groove 235, if engagement arm portion 233b is fastened on the snap-latch surface 235a, then latch 236 is fastened on the back side of engagement arm portion 233b, and thus, engagement arm portion 233b keeps the state on the snap-latch surface 235a that is fastened on.That is, on the latch 236 that the engaging lever 233 that is arranged on the slave end joint 216 is fastened on be arranged on the engine lid 221, can engaging lever 233 be locked on the bonding station, so that engine outlet side joint 234 is engaged with slave end joint 216.

Locking disengage button 237 is set on engine lid 221, if press this locking disengage button 237, then latch 236 is to the external moving that engages with groove 235, utilizes the locking of the engagement arm portion 233b that latch 236 carries out to be disengaged thus.Therefore,, can remove the engaging between engagement arm portion 233b and the snap-latch surface 235a, pull down engine outlet side joint 234 from slave end joint 216 through under the state of pressing locking disengage button 237, carrying out the recovery operation of engaging lever 233.

Shown in figure 13; On the motor field frame 226 of electromotor 218; Setting is installed in the electromotor outlet side joint 238 on the slave end joint 216 with the mode that can freely dismantle; Engaging recessed part 238a with cylindric depression is set on this electromotor outlet side joint 238, and slave end joint 216 utilizes interface 216b to be fastened among the engaging recessed part 238a.In addition; On motor field frame 226; Both sides at electromotor outlet side joint 238; The joint that forms the shape identical with the groove that on engine lid 221, forms, size is provided with and snap-latch surface snap-latch surface 235a and the latch 236 identical with latch that on engine lid 221, is provided with in these engage with groove 235 with groove 235.Therefore; Under the state that electromotor outlet side joint 238 has been installed on the slave end joint 216; Engaging lever 233 through operation slave end joint 216; The engagement arm portion 233b of engaging lever 233 is fastened on the snap-latch surface 235a that engages with groove 235, at the back side of engagement arm portion 233 engaging latch 236, can electromotor outlet side joint 238 be bonded on the slave end joint 216 simultaneously.In addition; Through under the state of pressing the locking disengage button 237 that is arranged on the motor field frame 226; Carry out the recovery operation of engaging lever 233, can contact the engaging between engagement arm portion 233b and the snap-latch surface 235a, pull down electromotor outlet side joint 238 from slave end joint 216.Promptly; Be arranged on the engaging lever 233 on the slave end joint 216; Optionally be arranged on engine outlet side joint 234 on latch 236 be arranged in the latch 236 on the electromotor outlet side joint 238 any engage; Thus, can be optionally in engine outlet side joint 234 and the electromotor outlet side joint 238 any be engaged with slave end joint 216.

Like this; In this mower; Because through the engaging lever 233 that is arranged on the slave end joint 216 is operated; Can easily engine outlet side joint 234 or electromotor outlet side joint 238 be engaged with slave end joint 216, thereby can easily carry out engine 217 or electromotor 218 to installation and removal operation as the motion arm 210 of mower main body.

Figure 16 is the sectional elevation of Figure 10; Leading section at engine output shaft 222 is provided with a pair of clutch hoof piece 241 as the driving side connecting portion; These clutch hoof pieces 241 are assembled in the engine outlet side joint 234, and are shown in figure 10, when slave end joint 216 engages with engine outlet side joint 234; These clutch hoof pieces 241 are assembled in the clutch drum 231, between driven shaft 211 and engine output shaft 222, constitute centrifugal clutch 242.Shown in figure 16; On engine outlet side joint 234; Setting is fixed on the discoid swivel plate 243 on the engine output shaft 222, and clutch hoof piece 241 244 is installed on the swivel plate 243 with mode free to rotate through pinning, and draft helical spring 245 is installed between each clutch hoof piece 241; Through this draft helical spring 245, apply to clutch hoof piece 241 and to make the spring force of the 241a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 231.If the rotating speed of engine 217 rises, then clutch hoof piece 241 utilized the spring force of centrifugal force antagonism draft helical spring 245 and opened, the inner peripheral surface of pushing clutch drum 231 and being connected with clutch drum 231.Thus, engine output shaft 222 becomes through centrifugal clutch 242 and driven shaft 211 direct-connected states.Pilot engine in 217 pulling out recoil handle 225,,, can easily pilot engine 217 so can not apply big resistance to recoil handle 225 because centrifugal clutch 242 is in open state.

Like this, if the slave end joint 216 that will be arranged on the motion arm 210 engages with engine outlet side joint 234 on being arranged at engine 217, then shown in Fig. 9 (A), can engine 217 be installed on the motion arm 210 as the mower main body.In addition; If slave end joint 216 is engaged with engine outlet side joint 234; Then because engine output shaft 222 is connected with driven shaft 211 through the centrifugal clutch 242 with clutch drum 231 and clutch hoof piece 241; So mower can be with engine 217 as power source, rotation drives cutter 213 and mows.

Shown in figure 13; Leading section at motor output shaft 227 is provided with a pair of clutch hoof piece 246 as the driving side connecting portion; These clutch hoof pieces 246 are assembled in the electromotor outlet side joint 238, and are shown in figure 11, when slave end joint 216 engages with electromotor outlet side joint 238; These clutch hoof pieces 246 are assembled in the clutch drum 231, between driven shaft 211 and motor output shaft 227, constitute centrifugal clutch 247.Be arranged on the clutch hoof piece 246 on the electromotor outlet side joint 238; To pass through pin (omitting diagram) mode free to rotate; Be installed on the swivel plate 248 that is fixed on the motor output shaft 227; Draft helical spring 251 is installed between each clutch hoof piece 246,, is applied to clutch hoof piece 246 and to make the spring force of the 246a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 231 through this draft helical spring 251.If the rotating speed of electromotor 218 rises, then clutch hoof piece 246 utilizes the spring force of centrifugal force antagonism draft helical spring 251 and opens, the inner peripheral surface of pushing clutch drum 231 and being connected with clutch drum 231.Thus, motor output shaft 227 becomes through centrifugal clutch 247 and driven shaft 211 direct-connected states.Be wrapped between cutter 213 and the lid 214 owing to grass; When the rotating speed of electromotor 218 descends under the state of being supplied with drive current by battery 228; Clutch hoof piece 246 is disengaged with respect to the engaging of clutch drum 231, can prevent in electromotor 218, to flow through overcurrent.

Like this, if slave end joint 216 is engaged with electromotor outlet side joint 238, then shown in Fig. 9 (B), can electromotor 218 be installed on the motion arm 210 as the mower main body.In addition; If slave end joint 216 is engaged with electromotor outlet side joint 238; Then because motor output shaft 227 is connected with driven shaft 211 through the centrifugal clutch 247 with clutch drum 231 and clutch hoof piece 246; So mower can be with electromotor 218 as power source, rotation drives cutter 213 and mows.In addition, the label of in Figure 10 and Figure 11, representing 552 is seal members of rubber system.

Through such formation; Mower of the present invention; Because the operator can be for a motion arm 210, any in engine 217 and the electromotor 218 optionally is installed, so be motion arm 210 and respectively as the engine 217 and the electromotor 218 of annex through prepare the mower main body in advance; Can make mower become a certain use the in engine-driven and the Motor Drive formula according to the environment for use of the operation of mowing.For example, in the place that does not require quietness, can be with engine 217 as the power source operation of mowing, in the place that requires quietness, can be with electromotor 218 as the power source operation of mowing, the user can select power source according to environment for use.In addition, the user with motion arm 210 and engine 217 are bought as a cover can switch to electrodynamic type with mower through buying electromotor 218 in addition.

Figure 17 is the stereogram of the detailed structure of expression engine speed adjuster shown in Figure 12; Figure 18 is the stereogram of the detailed structure of expression motor speed adjuster shown in Figure 13, and Figure 19 is arranged on the circuit diagram of the variable resistance in the motor speed adjuster shown in Figure 180.

Shown in figure 12, in order to adjust the rotating speed of engine 217, engine speed adjuster 253 is set on engine 217.This engine speed adjuster 253 is connected with engine 217 through cable unit 254; Shown in Fig. 9 (A); On motion arm 210, install in the engine 217, this engine speed adjuster 253 is installed on the grip 215 of motion arm 210 with the mode that can freely dismantle.

Shown in figure 17; Engine speed adjuster 253 has support 255 and utilizes support pin 256 to be supported on the bar 257 on the support 255 with mode free to rotate; Cable unit 254 has pipe 254a and is housed in the cable 254b among the pipe 254a with the mode that can move freely; This pipe 254a has pliability, and the end of cable 254b is connected with bar 257, and the other end is connected with the choke valve (omitting diagram) of engine 217.In addition, the end of pipe 254a is fixed on the support 255, and the other end is fixed on the engine lid 221, thus, utilizes pipe 254a, the mobile route length of the cable 254b between support 255 and the engine 217 is defined as the length of regulation.Therefore,, choke valve is carried out opening and closing operations, can adjust the rotating speed of engine 217 via cable 254b through action bars 257.

The integrally formed section 255a of mounting strap portion of C font roughly on support 255; The barbed portion of the 255a of mounting strap portion is connected with nut 259 through bolt 258; Through the 255a of mounting strap portion being configured on the handle 215 and fastening bolt 258 and nut 259 can be that engine speed adjuster 253 is installed on the handle 215 of motion arm 210 with the mode that can freely dismantle with support 255.If support 255 is installed on the handle 215, then be configured on the handle portion of handle 215, thereby the operator can operate the rotating speed of adjustment engine 217 to bar 257 under the state of the handle portion of holding handle 215 owing to bar 257.

On the other hand, shown in figure 13, in order to adjust the rotating speed of electromotor 218, motor speed adjuster 261 is set on electromotor 218.This motor speed adjuster 261 is connected with electromotor 218 through electric wire 262; Shown in Fig. 9 (B); On motion arm 210, install in the electromotor 218, this motor speed adjuster 261 is installed on the grip 215 of motion arm 210 with the mode that can freely dismantle.

Shown in figure 18; Motor speed adjuster 261 has support 263 and can free rotation mode be supported on the adjustment dish 265 as functional unit on the support 263 through support pin 264 with the mode that can move freely, and variable resistance shown in Figure 19 266 is set on support 263.Variable resistance 266 is connected with control device (omit diagram) on being arranged on electromotor 218 through electric wire 262; Have by battery 228 and apply the resistance 267 of supply voltage and the mobile terminal 268 that is connected with electromotor 218; Move terminal 268 and be fixed on the adjustment dish 265, contact with resistance 267 with the mode that can move freely simultaneously.Therefore,, can change and move terminal 268 and resistance 267 position contacting, thus, make the drive current variations of supplying with to electromotor 218 by battery 228, can adjust the rotating speed of electromotor 218 through adjustment dish 265 is rotated operation.

In addition; In this embodiment,, be supported on the adjustment dish 265 on the support 263 with free rotation mode but use as the functional unit that is arranged on the motor speed adjuster 261; But be not limited thereto; For example, as functional unit, also can use with mode that can free straight line back and forth movement and be supported on slide block on the support 263 etc.

On support 263, form the roughly 263a of mounting strap portion of C font of the section identical with the support of engine speed adjuster 253 255; Support 263 is that motor speed adjuster 261 utilizes the 263a of this mounting strap portion, is installed in the mode that can freely dismantle on the handle 215 of motion arm 210.If support 263 is installed on the handle 215, then the operator can operate adjustment dish 265 under the state of the handle portion of holding handle 215, the rotating speed of adjustment electromotor 218.

Like this; In this mower; Because engine speed adjuster 253 is connected with engine 217 through cable 254b, motor speed adjuster 261 passes through electric wire 262 and is connected with electromotor 218, thereby on being installed in engine 217 or electromotor 218 as the motion arm 210 of mower main body; The operation that need not carry out these speed adjustment devices 253,261 are connected with engine 217 or electromotor 218 or the operation of initial setting can make its fitting operation become easy.When being installed in engine 217 on the motion arm 210, owing to need not utilize the idler revolutions of 253 pairs of engines 217 of engine speed adjuster to adjust, thereby can make the operation that engine 217 is installed on the motion arm 210 become easy.When being installed in electromotor 218 on the motion arm 210; Owing to when each installation and removal electromotor 218, need not connect motor speed adjuster 261 and electromotor 218, thereby can prevent the bad connection between motor speed adjuster 261 and the electromotor 218.

The present invention is not limited to above-mentioned embodiment, can carry out various deformation in the scope that does not break away from its main points.For example; Of patent documentation 1; At motion arm 210 is that the front end of action bars is installed in power source and the mower by the straight ejector half of its driven cutter, also can be suitable for the present invention, in this case; In the housing of the front end that is installed in motion arm 210, engine and electromotor are installed optionally.And, the mower of the type of power source and cutter is installed on mobile chassis, equally also can be suitable for the present invention.

In addition, be not limited to structure shown in Figure 9, so long as can slave end joint 216 optionally be got final product with engine outlet side joint 234 and any attachment that engage in the electromotor outlet side joint 238 as attachment.For example; Also can be at the front end that the connecting rod on the slave end joint 216 is installed with the mode of freely rotating; With mode free to rotate bar with claw is installed, on engine outlet side joint 234 or electromotor outlet side joint 238, is formed projection, engaging is arranged on the claw on the bar.In addition, but also can be in the outside of slave end joint 216 with the free rotation mode installing sleeve, on engine outlet side joint 234 or electromotor outlet side joint 238, be provided with and be formed on the external screw thread of the internal screw-thread screw on the inner peripheral surface of sleeve.

In addition,, be not limited to centrifugal clutch, for example also can use engaged clutch etc. as the structure of the connection between driving side connecting portion and the slave end connecting portion.

The 3rd embodiment

Below, carry out detailed explanation according to Figure 20 to 29 pair of the 3rd embodiment.Figure 20 is the stereogram of the mower of expression the 3rd embodiment of the present invention, and Figure 20 (A) is illustrated in the state that engine is installed on the mower main body, and Figure 20 (B) is illustrated in the state that electromotor is installed on the mower main body.Mower shown in Figure 20 is an arm connecting-type mower, has the motion arm 310 as the mower main body.Motion arm 310 is made up of the parts of hollow rod-shape, but with free rotation mode driven shaft 311 (with reference to Figure 21 and Figure 23) is installed in inside.

Leading section at motion arm 310 is installed support component 312, on this support component 312, but with free rotation mode metal system cutter 313 is installed, and cutter 313, is connected with the front end of driven shaft 311 (omitting diagram) through bevel gear.Shown in figure 20, cutter 313 is the discoideus steel edges that are provided with the blade 314 of a plurality of chevrons, is the twolip formula that the cut-out edge of a knife is set in the cutter 313 positive and negative both direction sides of blade 314.At the leading section of motion arm 310, with the mode of operator's side of covering cutting 313 lid 315 is installed, to realize safety operation.

On the length direction central portion of motion arm 310, two grip 316 are installed, the operator can pick up and move cutter 313 through with the hands controlling handle 316 from ground.In addition; In the illustrated case, mower is that the both hands handle type of two grip 316 is installed on motion arm 310, but also can replace it; Form the bail handle formula, the shoulder of ring-type also can be installed on motion arm 310 hang the belt of usefulness and make mower formation shoulder hanging.

Rearward end at motion arm 310 is installed the slave end joint 317 as the joint of mower main body side; Motion arm 310 utilizes the part of slave end joint 317, optionally with the mode that can freely dismantle engine 318 and any in the electromotor 319 shown in Figure 20 (B) shown in Figure 20 (A) is installed.

Figure 21 is the local amplification view of the mower shown in expression Figure 20 (A), and Figure 22 (A) is the front view of engine, and Figure 22 (B) is the end view of the engine shown in this figure (A).Engine 318 is 4 stroke single-cylinder petrol engines; Mounting crank case in engine lid 320; But it supports the engine output shaft 321 that is made up of crank axle with free rotation mode; Engine is installed in crank box is constituted parts, comprise (omit and illustrate) such as cylinders of can free back and forth movement ground piston being installed.On engine output shaft 321, kick-starter is set, can pilots engine 318 through the recoil handle 322 that stretches.Drive engine 318 if the gasoline in the fuel tank 323 are acted as a fuel, then be installed in cooling fan 324 cooled engines 318 on the engine output shaft 321.

Figure 23 is the local amplification view of the mower shown in expression Figure 20 (B), and Figure 24 (A) is the front view of electromotor, and Figure 24 (B) is the end view of the electromotor shown in this figure (A).Electromotor 319 has the roughly motor field frame 325 of hexagon prism shape; But in this motor field frame 325, support the motor output shaft 326 that constitutes by armature shaft with free rotation mode; Electromotor is installed in motor field frame 325 is constituted parts, comprise (omitting diagram) such as the armature that is fixed on the motor output shaft 326 and the magnet relative with armature.In addition, TunePowers 327 such as lithium ion battery are installed, can be utilized the electric power of supplying with from this battery 327 that electromotor 319 is driven at the peripheral part of electromotor 319.

Figure 25 (A) is the front view of slave end joint, and Figure 25 (B) is the end view of the slave end joint shown in this figure (A).Slave end joint 317 forms the cup-shaped of diameter greater than motion arm 310, is installed in the rearward end of motion arm 310, and the flange part 328 of square shape is set at its openend.Become the conjugate foramen 328a that screws togather with bolt 329 as attaching parts at 4 dihedrals of flange part 328.

Shown in Figure 22 (A); Engine outlet side joint 330 is set on engine lid 320; On engine outlet side joint 330, form and each conjugate foramen 328a corresponding engagement hole 330a; Through under the state on the flange part 328 that engine outlet side joint 330 is docked at slave end joint 317, bolt 329 screwed togather be fixed among each conjugate foramen 328a, the 330a, can engine 318 be installed on the slave end joint 317 with the mode that can freely dismantle.Shown in Figure 24 (A); Electromotor outlet side joint 331 is set on motor field frame 325; On electromotor outlet side joint 331, form and each conjugate foramen 328a corresponding engagement hole 331a; Through under the state on the flange part 328 that electromotor outlet side joint 331 is docked at slave end joint 317, bolt 329 screwed togather be fixed among each conjugate foramen 328a, the 331a, can electromotor 319 be installed on the slave end joint 317 with the mode that can freely dismantle.In addition, the label of in Figure 21 and Figure 23, representing 332 is seal members of rubber system.

In the inside of this slave end joint 317, like Figure 21 and shown in Figure 23, clutch drum 333 is installed, it is fixed on the driven shaft 311, rotates integratedly with driven shaft 311, constitutes the slave end connecting portion by this clutch drum 333.

In the inside of engine outlet side joint 330, shown in figure 21, be mounted on a pair of clutch hoof piece 335 on the leading section of engine output shaft 321, constitute the driving side connecting portion by this clutch hoof piece 335.Shown in Figure 20 (A), engine 318 is being installed in 317 last times of slave end joint, by these clutch hoof piece 335 and clutch drum 333, between driven shaft 311 and engine output shaft 321, constitute centrifugal clutch 336.

Figure 26 is the sectional elevation of Figure 21.Shown in figure 21, the swivel plate 337 of fixed disc shape is shown in figure 26 on engine output shaft 321, and clutch hoof piece 335 is installed on this swivel plate 337 with mode free to rotate through pin 338.Draft helical spring 339 is installed on each clutch hoof piece 335, is utilized this draft helical spring 339, apply to each clutch hoof piece 335 and make the spring force of the 335a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 333.

Thus, pilot engine in 318,, can not apply big resistance, thereby can easily pilot engine 318 to recoil handle 322 because centrifugal clutch 336 is in open state pulling out recoil handle 322.And; Utilization follows engine speed to rise and the centrifugal force that increases, the spring force of clutch hoof piece 335 antagonism draft helical springs 339 and opening, the inner peripheral surface of pushing clutch drum 333 and being connected with clutch drum 333; Become engine output shaft 321 through centrifugal clutch 336 and driven shaft 311 direct-connected states; Thus, can make cutter 313 rotations, mow through driven shaft 311.

Leading section at motor output shaft 326 is provided with a pair of clutch hoof piece 340 as the driving side connecting portion; These clutch hoof pieces 340 are assembled in the electromotor outlet side joint 331; Shown in Figure 20 (B); When slave end joint 317 is engaged with electromotor outlet side joint 331,, between driven shaft 311 and motor output shaft 326, constitute centrifugal clutch 341 by these clutch hoof piece 340 and clutch drum 333.

Shown in figure 23, the swivel plate 342 of fixed disc shape on motor output shaft 326, clutch hoof piece 340 use pin (omitting diagram), are installed on this swivel plate 342 with mode free to rotate.Draft helical spring 343 is installed on each clutch hoof piece 340, is utilized this draft helical spring 343, apply to each clutch hoof piece 340 and make the spring force of the 340a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 333.

Thus; Utilization follows the rotating speed of electromotor 319 to rise and the centrifugal force that increases, the spring force of clutch hoof piece 340 antagonism draft helical springs 343 and opening, the inner peripheral surface of pushing clutch drum 333 and being connected with clutch drum 333; Become motor output shaft 326 through centrifugal clutch 341 and driven shaft 311 direct-connected states; Thus, can make cutter 313 rotations, mow through driven shaft 311.And; Be wrapped in cutter 313 first-class reasons owing to grass; When the rotation of cutter 313 under the state of supplying with drive current from battery 327 stops; Clutch hoof piece 340 slides with respect to clutch drum 333, and motor output shaft 326 is proceeded rotation thus, can prevent in electromotor 319, to flow through overcurrent.Electric power through this electromotor 319 of subtend is supplied with is controlled, and can freely control the rotating speed and the direction of rotation of motor output shaft 326.

Figure 27 (A) amplifies the stereogram that is arranged on the change-over switch on the handle shown in the presentation graphs 1 (B), and Figure 27 (B) is the circuit diagram of the positive and negative commutation circuit of the electromotor of expression with change-over switch.Near the handle portion of handle 316, with the mode that can freely dismantle motor regulator 346 is installed, it has the adjustment dish 344 and the change-over switch 345 that is used to switch direction of rotation that is used to control motor speed.This motor regulator 346 has with the mode that can freely dismantle and is installed in the support 347 on the handle 316, and in the illustrated case, support 347 has the roughly mounting strap 348 of C font of section, and mounting strap 348 can freely open at its notch part 348a.Can inserting bolt 349 in this barbed portion 348a; After this notch part 348a embeds handle 316; Bolt 349 is inserted among the notch part 348a, use nut 350 fastening, can motor regulator 346 be installed on the handle 316 with the mode that can freely dismantle thus.This motor regulator 346 is connected with the control part of electromotor 319 through cable 351, shown in Figure 20 (B), is installing on the motion arm 310 under the situation of electromotor 319, uses support 347 to be installed on the handle 316 with the mode that can freely dismantle.On the other hand, installing under the situation of engine 318 on the motion arm 310, shown in Figure 20 (A), pull down motor regulator 346 from handle 316.

Variable resistance (omitting diagram) is installed in adjustment dish 344; Through adjustment dish 344 is rotated operation, make the resistance change of variable resistance, thus; Can make the drive current variations of supplying with to electromotor 319 by battery 327, with the rotating speed of adjustment electromotor 319.Through the rotating speed of adjustment electromotor 319, can be through the rotating speed of driven shaft 311 adjustment cutters 313.

Change-over switch 345 in the illustrated case; Be to the position on the positive transit point of the positive and negative commutation circuit that is connected electromotor and be connected these two push-button switchs that switch the position of position on the reverse contact, keep its position to be pressed once more until change-over switch 345.If change-over switch 345 is connected on the positive transit point; Then cutter 313 is driven in rotation the positive veer that arrow N representes in for example Figure 20 (B); If change-over switch 345 is connected on the reverse contact, then cutter 313 is driven in rotation to reverse directions with the mode that arrow R representes.Each direction of rotation is retained to change-over switch 345 and is pressed once more.In addition, the shape of change-over switch 345 and structure are not limited to illustrated situation, so long as operate through the operator, can the direction of rotation of electromotor 319 be switched to positive and negative both direction, also can be slidingtype, lever or revolving switch etc.

In this mower, can engine 318 be installed on the motion arm 310 and the operation of mowing, and can electromotor 319 be installed on the motion arm 310 and the operation of mowing.When mowing operation, can under the state of controlling handle 316, change-over switch 345 be operated, can make cutter 313 thus to positive and negative any one direction of rotation rotation with finger tip driving cutter 313 by electromotor 319 rotations.

Figure 28 (A) is the plane of the cutter of single-blade formula, and Figure 28 (B) is the plane of the cutter of twolip formula.Shown in Figure 28 (A); The cutter 313a of single-blade formula is provided with a plurality of jagged blades 314 at the peripheral part of metal plectane; Each blade 314 has the front side of the direction of rotation that is formed on cutter 313a and the cut-out edge of a knife 352 that extends to diametric(al) and the inclined plane 353 that is formed on the direction of rotation rear side; On inclined plane 353, do not form and cut off the edge of a knife, cut off the direction side that the edge of a knife 352 only is formed on direction of rotation.Relative therewith, the cutter 313 of twolip formula is provided with the blade 314 of a plurality of chevrons at the peripheral part of metal plectane, and each blade 314 forms on the positive and negative both direction of cutter 313 and cuts off edge of a

knife

352a, 352b.

Can in the cutter 313 of the cutter 313a of single-blade formula shown in Figure 28 and twolip formula any be installed on the motion arm 310; Any of engine 318 and electromotor 319 as power source, carried out the cutting operation of weeds etc., but shown in Figure 20 (B); Electromotor 319 is installed under the situation on the motion arm 310; Through the cutter 313 of twolip formula is installed, no matter to which direction rotary cutter 313, the operation of can mowing.Even the cutter 313 in the twolip formula is installed under the state on the motion arm 310; Power source is replaced by engine 318 from electromotor 319; Shown in Figure 20 (B); Also can utilize the operation of mowing of the cutter 313 of twolip formula, under the situation of operation of mowing by engine 318, also can utilize the cutter 313a of the single-blade formula operation of mowing.

Figure 29 (A) representes to utilize the cutter 313 that the twolip formula is installed simultaneously with the mower of electromotor 319 as power source; The skeleton diagram of the mowing order under the situation of operating of mowing; If mowing pasture is the rectangle with left and right sides side 361,362 and limit, front and back end 363,364; Then under the zone of contiguous right side side 362 from Figure 29 (A) begins to mow the situation of operating; In end limit 364 beginnings from operation beginning side, with the mode shown in the arrow N under the state of positive veer rotary cutter 313, the operator at first with motion arm 310 with the mode shown in the circular-arc arrow; Be back to right-hand to after from right-hand to brandish to left to and make cutter 313 from right-hand to moving to left to, the operation of mowing.After so swinging operation arm 310 was mowed operation, the operator advanced mobile along side 362, likewise cutter 313 is back to right-hand to after, direction moves cutter 313 left, the operation of mowing thus.Like this, advancing of operation through the motion arm 310 that swings repeatedly and operator is mobile, the operation of mowing.

In this mowed operation, blade of grass can be blown to side 361 sides in left side among Figure 29 (A).If proceed to the end limit 363 of EO side; Then the operator makes the posture counter-rotating; Simultaneously change-over switch 345 is operated and make the direction of rotation of cutter 313 switch to reverse directions; Shown in Figure 29 (A), cutter 313 is moved to the right side on the left of direction of advance when, mow.At this moment, because cutter 313 counter-rotating, blade of grass is blown to the direction of advance right side, thereby blade of grass and above-mentioned situation likewise are blown to side 361 sides.Like this; Under the situation of operation of mowing; From the end limit 364 of operation beginning side when advancing in the end limit 363 of EO side and when returning in the other direction come and go two that move the time operation of mowing, can make blade of grass blow to side 361 sides.

Relative therewith; Shown in Figure 29 (B), be installed on the mower and under the situation of the operation of mowing, owing to make cutter 313 rotate the operation of mowing to positive veer at cutter 313a with the single-blade formula; Thereby move on the end limit 363 of the side of turning back from end limit 364 side direction on one side; Simultaneously blade of grass is blowed to side 361 sides and after the operation of mowing, for make with cutting after regional adjacent areas when mowing, blade of grass flies to side 361 sides; The operation if counter-rotating is mowed, then blade of grass is blown to side 362 sides.Therefore, the operator must be back to the position on the end limit 364 that begins side originally with the mode shown in the dotted line, the operation of only when advancing, can mowing.

Therefore, the operation of mowing then through cutter 313 is rotated to positive and negative both direction, can make blade of grass near a direction side if utilize electromotor 319 to make cutter 313 rotations.Particularly, form under the high situation obliquely as dykes and dams of side 362 sides among Figure 29 at mowing pasture, whenever the operator can make blade of grass near the lowland side when mobile coming and going, raising mowing operability.

The present invention is not limited to above-mentioned embodiment, can carry out various deformation in the scope that does not break away from its main points.For example, the mower of straight ejector half, mower that the type of power source and cutter is installed on mobile chassis also can be suitable for the present invention.

The 4th embodiment

Below, according to Figure 30 to Figure 37 the 4th embodiment is carried out detailed explanation.Figure 30 is the stereogram of the mower of expression the 4th embodiment of the present invention, and Figure 30 (A) is illustrated in the state that engine is installed on the mower main body, and Figure 30 (B) is illustrated in the state that electromotor is installed on the mower main body.Mower shown in Figure 30 is an arm connecting-type mower, has the motion arm 410 as the mower main body.Motion arm 410 is made up of the parts of hollow rod-shape, but with free rotation mode driven shaft 411 (with reference to Figure 31 and Figure 33) is installed in inside.

Leading section at motion arm 410 is installed support component 412, on this support component 412, but with free rotation mode metal cutter 413 is installed, and cutter 413 is connected with the front end of driven shaft 411 (omitting diagram) through bevel gear.Cutter 413 is discoideus steel edge, and it is provided with a plurality of blades 414 with zigzag, is the single-blade formula of side of cutting off a direction side of the direction of rotation that the edge of a knife only is arranged on blade.At the leading section of motion arm 410, with the mode of operator's side of covering cutter 413 lid 415 is installed, utilize this lid 415 to prevent that the operator from contacting cutter 413, to realize safety operation.

Two grip 416 are installed on the length direction central portion of motion arm 410, and the operator can pick up and move cutter 413 through with the hands controlling handle 416 from ground.In addition; In the illustrated case; Mower is the both hands handle type that two grip 416 are installed on motion arm 410, but also can replace it and form the bail handle formula, and the shoulder that ring-type also can be installed on motion arm 410 is hung the belt of usefulness and mower become take on hanging.

Rearward end at motion arm 410 is installed the slave end joint 417 as the joint of mower main body side; Motion arm 410 utilizes the part of slave end joint 417, optionally with the mode that can freely dismantle engine 418 and any in the electromotor 419 shown in Figure 30 (B) shown in Figure 30 (A) is installed.

Figure 31 is the local amplification view of the mower shown in expression Figure 30 (A), and Figure 32 (A) is the front view of engine, and Figure 32 (B) is the end view of the engine shown in this figure (A).Engine 418 is 4 stroke single-cylinder petrol engines; Mounting crank case in engine lid 420; But it supports the engine output shaft 421 that is made up of crank axle with free rotation mode; Engine such as cylinder is installed in crank box is constituted parts, this cylinder is installed piston (omitting diagram) with mode that can free back and forth movement.On engine output shaft 421, kick-starter is set, can pilots engine 418 through the recoil handle 422 that stretches.Drive engine 418 if the gasoline in the fuel tank 423 are acted as a fuel, then be installed in cooling fan 424 cooled engines 418 on the engine output shaft 421.

Figure 33 is the local amplification view of the mower shown in expression Figure 30 (B), and Figure 34 (A) is the front view of electromotor, and Figure 34 (B) is the end view of the electromotor shown in this figure (A).Electromotor 419 has the roughly motor field frame 425 of hexagon prism shape; On the motor field frame 425; But support the motor output shaft 426 that constitutes by armature shaft with free rotation mode; Electromotor is installed in motor field frame 425 is constituted parts, comprise (omitting diagram) such as the armature that is fixed on the motor output shaft 426 and the magnet relative with armature.In addition, TunePowers 427 such as lithium ion battery are installed, can be utilized the electric power of supplying with by this battery 427 that electromotor 419 is driven at the peripheral part of electromotor 419.

Figure 35 (A) is the front view of slave end joint, and Figure 35 (B) is the end view of the slave end joint shown in this figure (A).Slave end joint 417 forms the cup-shaped of diameter greater than motion arm 410, is installed in the rearward end of motion arm 410, and the flange part 428 of square shape is set at its openend.Become the conjugate foramen 428a that screws togather with bolt 429 as attaching parts at 4 dihedrals of flange part 428.

Shown in Figure 32 (A); Engine outlet side joint 430 is set on engine lid 420; On engine outlet side joint 430, form and each conjugate foramen 428a corresponding engagement hole 430a; Through under the state on the flange part 428 that engine outlet side joint 430 is docked at slave end joint 417, bolt 429 screwed togather respectively be fixed among conjugate foramen 428a, the 430a, can engine 418 be installed on the slave end joint 417 with the mode that can freely dismantle.Shown in Figure 34 (A); Electromotor outlet side joint 431 is set on motor field frame 425; On electromotor outlet side joint 431, form and each conjugate foramen 428a corresponding engagement hole 431a; Through under the state on the flange part 428 that electromotor outlet side joint 431 is docked at slave end joint 417, bolt 429 screwed togather be fixed among each conjugate foramen 428a, the 431a, can electromotor 419 be installed on the slave end joint 417 with the mode that can freely dismantle.In addition, the label of in Figure 31 and Figure 32, representing 432 is seal members of rubber system.

In the inside of this slave end joint 417, like Figure 31 and shown in Figure 33, clutch drum 433 is installed, it is fixed on the driven shaft 411, rotates integratedly with driven shaft 411, constitutes the slave end connecting portion by this clutch drum 433.

In the inside of engine outlet side joint 430, shown in figure 31, be mounted on a pair of clutch hoof piece 435 on the leading section of engine output shaft 421, constitute the driving side connecting portion by this clutch hoof piece 435.Shown in Figure 30 (A), engine 418 is being installed in 417 last times of slave end joint, utilize these clutch hoof pieces 435 and clutch drum 433, between driven shaft 411 and engine output shaft 421, constitute centrifugal clutch 436.

Figure 36 is the sectional elevation of Figure 31.Shown in figure 31; The swivel plate 437 of fixed disc shape is shown in figure 36 on engine output shaft 421, and clutch hoof piece 435 is through pin 438; Be installed on the swivel plate 437 with mode free to rotate; Draft helical spring 439 is installed on each clutch hoof piece 435, is utilized this draft helical spring 439, apply to each clutch hoof piece 435 and make the spring force of the 435a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 433.

Thus, pilot engine in 418,, can not apply big resistance, thereby can easily pilot engine 418 to recoil handle 422 because centrifugal clutch 436 is in open state pulling out recoil handle 422.And; Utilization follows engine speed to rise and the centrifugal force that increases, the spring force of clutch hoof piece 435 antagonism draft helical springs 439 and opening, the inner peripheral surface of pushing clutch drum 433 and being connected with clutch drum 433; Become engine output shaft 421 through centrifugal clutch 436 and driven shaft 411 direct connection status; Thus, can make cutter 413 rotations, mow through driven shaft 411.

Leading section at motor output shaft 426 is provided with a pair of clutch hoof piece 440 as the driving side connecting portion; These clutch hoof pieces 440 are installed on the electromotor outlet side joint 431; Shown in Figure 30 (B); When slave end joint 417 engages with electromotor outlet side joint 431,, between driven shaft 411 and motor output shaft 426, constitute centrifugal clutch 441 by these clutch hoof piece 440 and clutch drum 433.

Shown in figure 33, the swivel plate 442 of fixed disc shape on motor output shaft 426, clutch hoof piece 440 utilize pin (omitting diagram), are installed on this swivel plate 442 with mode free to rotate.Draft helical spring 443 is installed on each clutch hoof piece 440, is utilized this draft helical spring 443, apply to each clutch hoof piece 440 and make the spring force of the 440a of CONTACT WITH FRICTION portion away from the direction of the inner peripheral surface of clutch drum 433.

Thus; Utilization follows the rotating speed of electromotor 419 to rise and the centrifugal force that increases, the spring force of clutch hoof piece 440 antagonism draft helical springs 443 and opening, the inner peripheral surface of pushing clutch drum 433 and being connected with clutch drum 433; Become motor output shaft 426 through centrifugal clutch 441 and driven shaft 411 direct-connected states; Thus, can make cutter 413 rotations, mow through driven shaft 411.And; Be wrapped in cutter 413 first-class reasons owing to grass; When the rotation of cutter 413 under the state of supplying with drive current from battery 427 stops; Clutch hoof piece 440 slides with respect to clutch drum 433, and motor output shaft 426 continues rotation thus, can prevent in electromotor 419, to flow through overcurrent.Electric power through this electromotor 419 of subtend is supplied with is controlled, and can freely control the rotating speed and the direction of rotation of motor output shaft 426.

Figure 37 (A) amplifies the stereogram that is arranged on the locking cancel switch on the handle shown in the presentation graphs 1 (B), and Figure 37 (B) is the circuit diagram that expression has the electromotor circuit for reversing of locking cancel switch.Near the handle portion of handle 416, with the mode that can freely dismantle motor regulator 446 is installed, it has the adjustment dish 444 and the locking cancel switch 445 that is used to switch direction of rotation that is used to control motor speed.This motor regulator 446 has with the mode that can freely dismantle and is installed in the support 447 on the handle 416, and in the illustrated case, support 447 has the roughly mounting strap 448 of C font of section, and mounting strap 448 can freely open at its barbed portion 448a.Inserting bolt 449 in this barbed portion 448a; After this notch part 448a embeds handle 416, bolt 449 is inserted among the notch part 448a, use nut 350 fastening; Thus, can motor regulator 446 be installed on the handle 416 with the mode that can freely dismantle.

Variable resistance (omitting diagram) is installed in adjustment dish 444; Through adjustment dish 444 is rotated operation, make the resistance change of variable resistance, thus; Make the drive current variations of supplying with to electromotor 419 by battery 427, can adjust the rotating speed of electromotor 419.Rotating speed through adjustment electromotor 419 can pass through driven shaft 411, the rotating speed of adjustment cutter 413.

This motor regulator 446 is connected with electromotor 419 through cable 351; Shown in Figure 30 (B), when being installed to electromotor 419 on the motion arm 410, use support 447; Be installed on the handle 416 with the mode that can freely dismantle; When being installed in engine 418 on the motion arm 410, motor regulator 446 is pulled down from handle 416 shown in Figure 30 (A).Locking cancel switch 445 is shown in Figure 37 (B); Be connected often on the positive transit point of electromotor through not shown spring members; If locking cancel switch 445 is depressed; Then the reverse contact of motor drive circuit becomes conducting state, and electromotor only reverses during locking cancel switch 445 is depressed.

Locking cancel switch 445 in the illustrated case; Be the push-button switch that spring members has been installed, shown in Figure 37 (B), remain on the positive transit point of electromotor circuit for reversing in the time of usually; If be pressed, then temporarily contact reverse contact and make electromotor 419 counter-rotating.Locking cancel switch 445 is back to original position if pressed state is disengaged, and then shown in Figure 37 (B), reverse contact is opened and positive transit point contact, and motor output shaft 426 just changes once more.As circuit for reversing, be not limited to illustrated situation, also can be if locking cancel switch 445 is pressed once, then make the revolution of motor output shaft 426 despinings regulation, for example once rotation, or motor output shaft 426 is reversed several seconds.In addition, the shape of locking cancel switch 445 and structure are not limited to illustrated situation, can be slidingtype, rod-type or revolving switch etc. to electromotor 419 transmission reverse currents so long as operate through the operator.

In this mower, can engine 418 be installed on the motion arm 410 and the operation of mowing, and can electromotor 419 be installed on the motion arm 410 and the operation of mowing.When utilizing electromotor 419 rotation driving cutters 413 to mow operation; When in cutter 413, twine blade of grass or gulp down into foreign matter and cutter 413 by locking; When stopping the rotation; Can be through operation locking cancel switch 445, the motor output shaft 426 through electromotor 419 is with the revolution or the time of the direction of rotation counter-rotating regulation of cutter 413.Thus, can be safely and easily remove blade of grass that is wrapped on the cutter 413 etc., can realize the raising of operability.Through motor regulator 446 is installed in handle portion near, can under the state of controlling handle 416, locking cancel switch 445 be operated with finger tip, can easily carry out the locking of cutter 413 and remove operation.

The present invention is not limited to above-mentioned embodiment, can carry out various deformation in the scope that does not break away from its main points.For example, at the mower of straight ejector half, mower that the type of power source and cutter is installed on mobile chassis also is suitable for the present invention.

Claims

1. mower, it makes the cutter rotation and mows, and it is characterized in that having:

The mower main body;

Support, it is installed on the said mower main body, but supports said cutter with free rotation mode;

Driven shaft, but its be supported in the said mower main body with free rotation mode, be connected with said cutter;

The slave end joint, it is installed on the said mower main body, simultaneously, with the mode that can freely dismantle, electromotor outlet side joint is installed, and said electromotor outlet side joint is arranged on the motor field frame of accommodating electromotor;

The slave end attaching parts, it is connected with said driven shaft in said slave end joint, simultaneously, is connected with the driving side attaching parts of electromotor, and the driving side attaching parts of said electromotor are arranged on the output shaft of said electromotor; And

The accessory that can freely dismantle, it is equipped corresponding to said electromotor, and its driving is assisted,

Wherein, said accessory is a battery, and it is mounted when said electromotor is installed on the said mower main body, drives said electromotor, and said battery forms along the section of the peripheral part of said electromotor and roughly is in the shape of the letter V.

2. mower as claimed in claim 1 is characterized in that,

Said battery is installed on the said electromotor with the mode of sliding.

3. mower as claimed in claim 1 is characterized in that,

Said mower also has the motor speed adjuster, and it is mounted when said electromotor optionally is installed on the said mower main body, is connected with said electromotor, can adjust the rotating speed of said electromotor.

4. mower as claimed in claim 3 is characterized in that,

Said motor speed adjuster is installed on the said mower main body with the mode that can freely dismantle, utilizes electric wire to be connected with said electromotor.

5. mower as claimed in claim 4 is characterized in that,

Said motor speed adjuster is by constituting with the lower part: support, and it is installed on the said mower main body with the mode that can freely dismantle; Functional unit, it is supported on the said support with the mode that can move freely; And variable resistance, it utilizes said functional unit to be operated, and makes the drive current variations of supplying with to said electromotor from power supply.

6. mower as claimed in claim 1 is characterized in that,

Said cutter has the blade of twolip formula; Simultaneously, said accessory is a change-over switch, and it is mounted when said electromotor optionally is installed on the said mower main body; In order to switch the direction of rotation of said cutter, the direction of rotation of said electromotor is switched.

7. mower as claimed in claim 6 is characterized in that,

Said change-over switch is installed on the handle of said mower main body with the mode that can freely dismantle, and is connected with said electromotor through cable.

8. mower as claimed in claim 1 is characterized in that,

Said mower also has change-over switch, and it is mounted when said electromotor optionally is installed on the said mower main body, when said cutter locking, makes said electromotor counter-rotating.

9. mower as claimed in claim 8 is characterized in that,