CN101297614B - Trimmer - Google Patents
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- CN101297614B CN101297614B CN200710098346XA CN200710098346A CN101297614B CN 101297614 B CN101297614 B CN 101297614B CN 200710098346X A CN200710098346X A CN 200710098346XA CN 200710098346 A CN200710098346 A CN 200710098346A CN 101297614 B CN101297614 B CN 101297614B
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- guard block
- finishing
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- sword
- protective position
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Abstract
A kind of protection that can be maintained to blade and the finishing machine that good workability is played in the finishing of limit. In finishing machine (1b), lower cover (30) is configured to slide along the longitudinal direction, by helical spring (35) to protective position applied force under normality; And; it can be under external force; when falling back on vertical view in the actuating range of finishing sword (14); wherein, protective position refers to the location of lower cover (30) when the top of protection portion (33) is in and protrudes more forward than the actuating range for modifying sword (14).
Description
Technical field
The present invention relates to lawn care and finishing machine such as cut, it can utilize from the outstanding forward finishing sword of main body and repair lawn or hedgerow etc.
Background technology
For example, with regard to lawn care is cut, the known following a kind of structure of people, shown in TOHKEMY 2002-335761 communique, contain electromotor in the main body, in the place ahead of the lower surface of main body, the outstanding forward a pair of finishing sword of configuration up and down that is pectination when overlooking that is provided with, be accompanied by the rotation of electromotor, make two finishing swords on left and right directions, cut off action, repair lawn etc. with this by eccentric stiffener.
During above-mentioned lawn care is cut,, therefore, when carrying out dressing operation,, then can cause damage to this blade if hard thing such as blade and stone contacts because expose on the top of finishing sword.Therefore; people consider to be provided with a kind of guard block on main body, cover part to its top in order to the top from the finishing sword, but in finishing during by the lawn on wall limit (following finishing with this situation is called the limit finishing); above-mentioned guard block can become and be in the way, and makes the blade tip can not be near wall.Even if in removable mode guard block is set, also can cause the operation reduction because of the difference dismounting guard block again and again of having in finishing place in order to deal with above-mentioned condition.
Summary of the invention
The objective of the invention is to, provide a kind of and can either keep the finishing machine that in the finishing of limit, to bring into play good operation to the protection of blade again.
To achieve these goals, be provided with guard block in the finishing machine of technical solution of the present invention 1, this guard block forwards stretches out along above-mentioned finishing sword, under normal conditions, this guard block is positioned at protective position, and this moment, the top of this guard block was more outstanding than the actuating range of above-mentioned finishing sword; And under external force, above-mentioned at least top can retreat in the actuating range of finishing sword when overlooking; Guard block is a sliding panel, and it can slide before and after the finishing sword is done, and is applied in force mechanisms under normal conditions and applies power and be maintained at protective position to the protective position that is positioned at the place ahead; And under external force, this sliding panel can fall back in the actuating range of finishing sword.
To achieve these goals, be provided with guard block in the finishing machine of technical solution of the present invention 2, under normal conditions, this guard block is positioned at protective position, and this moment, its top was more outstanding than the actuating range of finishing sword; And the top at least of this guard block can be by at random to the retreating position move operation, and wherein, described retreating position is meant the position of guard block when above-mentioned top falls back in the actuating range when overlooking; Guard block is a flap, and its rear end is by the side of pivoting support in main body, and can and be positioned between the retreating position of proceeds posterolateral on the protective position in the protective position that is positioned at the place ahead and rotate, and under the normality, and this flap is rotated and applies force mechanisms and apply power to protective position.
To achieve these goals, be provided with guard block in the finishing machine of technical solution of the present invention 3, under normal conditions, this guard block is positioned at protective position, and this moment, its top was more outstanding than the actuating range of finishing sword; And the top at least of this guard block can be by at random to the retreating position move operation, and wherein, described retreating position is meant the position of guard block when above-mentioned top falls back in the actuating range when overlooking; Guard block is a sliding panel, and it can slide before and after the finishing sword is done, and is applied in force mechanisms under normal conditions and applies power to the protective position that is positioned at the place ahead; And, utilizing operating portion, sliding panel can be operated in the actuating range that retreats into the finishing sword.
Adopt the finishing machine of technical scheme 1,2 and 3, can under the effect of external force, keep out of the way or, can both keep protection, can in the finishing of limit, carry out good operation again the blade of finishing sword by the guard block of move operation arbitrarily by being provided with.
In addition, adopt the finishing machine of technical scheme 1, can also obtain the guard block that can retreat from protective position in simple mode.
Adopt the finishing machine of technical scheme 2,, can also easily carry out move operation to protective position and retreating position by adopting flap.
Adopt the finishing machine of technical scheme 3, possess the sliding panel of operating portion, can also easily carry out move operation to protective position and retreating position by employing.
Description of drawings
Among Fig. 7, figure (A) is the upward view that the lawn care of embodiment 3 is cut, and figure (B) is the sectional elevation of screw and stopper portions.
Fig. 8 is the end view of rear part of the housing of embodiment 3.
Fig. 1 is the longitudinal section that the lawn care of embodiment 1 is cut.
Fig. 2 is the upward view that the lawn care of embodiment 1 is cut.
Fig. 3 is the longitudinal section that the lawn care of embodiment 2 is cut.
Fig. 4 is the partial top view of the guard block of embodiment 2.
Fig. 5 is the key diagram of cutting careless state that the lawn care of expression embodiment 2 is cut.
Fig. 6 is the longitudinal section that the lawn care of embodiment 3 is cut.
Fig. 9 is the longitudinal section that the lawn care of embodiment 4 is cut.
Figure 10 is the upward view that the lawn care of embodiment 4 is cut.
Figure 11 is the key diagram of embodiment 4 king-rods part.
Figure 12 is the end view that the lawn care of embodiment 4 is cut, and is used to represent the action of baffle.
Figure 13 is the longitudinal section that the lawn care of embodiment 5 is cut.
Among Figure 14, figure (A) is the upward view that the lawn care of embodiment 5 is cut, and figure (B) is the sectional elevation of operating portion and locking mechanism part.
Among Figure 15, figure (A) is the key diagram of the operating portion seen from the housing side, and figure (B) is the vertical view of this operating portion.
Embodiment
Below, based on description of drawings the specific embodiment of the present invention.
(embodiment 1)
Fig. 1 is the longitudinal section of cutting as the lawn care of finishing machine one example, and Fig. 2 is the upward view of lawn secateur among Fig. 1.Lawn care is cut in 1, in housing 2, take in main shaft electromotor 4 down as main body, and will be fixed on the rotation of the pinion 6 on the output shaft 5 of electromotor 4, be configured at output shaft 5 rears and with vertical direction is after second gear 7 of axial pivoting support slows down, output to be configured in output shaft 5 the place aheads and being on the 3rd gear 8 of axial pivoting support along vertical direction, wherein, housing 2 by about two halfbodies constitute, its proceeds posterolateral that makes progress (Fig. 1 left side) is extended and is provided with handle 3.Symbol 9 is switches that the control motor driven is used, and symbol 10 is plate machines, can switch 9 be connected by pulling plate machine 10.The below of the 3rd gear 8 disposes last sword 11 and the following sword 12 that is pectination when overlooking, wherein, the top of last sword 11 with the interval of regulation outstanding be provided with blade 11a, 11a ..., the top of following sword 12 is with outstanding blade 12a, the 12a...... of being provided with in the interval of regulation, under the state that overlaps up and down, 12 of last sword 11 and following swords are the axle pivoting support with pin 13, and, utilize up and down to constitute finishing sword 14 to the outstanding head portion (above-mentioned blade) in the place ahead of housing 2 on the sword 11,12.
On the other hand, from downward outstanding 2 projectioies 15 that are provided with of the lower surface of the 3rd gear 8,16, these 2 projectioies from the pivot of the 3rd gear 8 respectively to opposite both direction off-centre, and, the projection 15 of one side is inserted in the slotted hole 18 that is arranged on the sword 11 together with column sleeve disposed thereon 17, the projection 16 of opposite side is inserted in the slotted hole 20 that is arranged on down on the sword 12 together with column sleeve disposed thereon 19, and make column sleeve 17,19 can be along slotted hole 18,20 long axis direction slides, wherein, above-mentioned two slotted holes 18,20 is its long axis direction with fore-and-aft direction all.
Therefore, if drive motor 4 rotates the 3rd gear 8, then can utilize the eccentric motion of projection 15,16, make sword 11 and following sword 12 protruding 15,16 along under the drive of the component motion of left and right directions, with pin 13 is the center, does backswing on left and right directions, so, at finishing sword 14 places, will utilize blade 11a, 12a to wait and cut off action.Symbol 21 expression is used for the lower cover of covering shell lower surface, is provided with metallic plate 22 between lower cover 21 and following sword 12, is used to support down the lower surface of sword 12 and the swing of two-edged 11,12 is led.
In addition, at the outstanding forward baffle 23 that is provided with of the lower front surface of housing 2, in order to as guard block.This baffle 23 is plate-like pieces of synthetic resin (for example nylon) system; it covers whole finishing sword 14 and approaching with last sword 11 in non-contacting mode from the top; the top ends of baffle 23 be provided with forward outstanding and be when overlooking pectination elastic cylinder 24,24 ..., and make the interval of 24 of each elastic cylinders less than between blade 11a and the interval between blade 12a.It is rounded when the top of these elastic cylinders 24 is overlooked; under the normality; the top of this elastic cylinder 24 is disposed at protective position along finishing sword 14; promptly; than the outstanding slightly forward microsize of the actuating range of finishing sword 14 (the outstanding approximately 2mm of the present invention); and this elastic cylinder 24 has elasticity, and can make to wait along the vertical direction under the effect of external force and produce distortion.
Cut with regard to 1 with regard to the lawn care that constitutes in the above-described manner; because under common user mode; it is slightly forwards outstanding that sword 14 is repaired on the top of baffle 23; therefore in carrying out the dressing operation process; have barriers such as stone even if be trimmed the place; above-mentioned barrier also can first contact protection plate 23, thereby has prevented barrier contact finishing sword 14.
On the other hand, when the lawn on finishing wall limit, when repairing sword 14 when metope is close, the top of baffle 23 can contact with metope earlier, and this part elastic cylinder 24 that contacts with body of wall will produce elastic deformation, allows to repair further moving ahead of sword 14.Thus, this structure can make finishing sword 14 and metope near and carry out limit and repair.
Employing has the lawn care of the embodiment 1 of said structure and cuts 1; cut 1 by this lawn care and be provided with baffle 23; keep the blade 11a of finishing sword 14, the protection of 12a; and also can implement operation well when repairing in the limit; wherein; under normal conditions, the top of baffle 23 is positioned at the protective position more outstanding than the actuating range of finishing sword 14, and can be by dodging in the actuating range of external force when overlooking.
The baffle 23 that particularly adopts following a kind of pectination is as guard block; this baffle is arranged on the housing 2 along finishing sword 14; and its front portion is set side by side with a plurality of elastic cylinders 24; under normal conditions; the top of these a plurality of elastic cylinders 24 is forwards more outstanding than the actuating range of finishing sword 14; in addition; also can be under the effect of external force; elastic cylinder 24 distortion; thereby its top is kept out of the way in the actuating range of repairing sword 14, thus, can prop up careless bar with baffle 23 by lateral dominance; lateral dominance is repaired with finishing sword 14, can get the retrofit of finishing face more beautiful.
In addition, the quantity of elastic cylinder and shape are not limited to above-mentioned embodiment, also can reduce its quantity and increase it at interval, perhaps use the apicule shape.In addition, its top can also be set at triangle or quadrangle outside the circle.
Moreover guard block also is not limited to the upside at the finishing sword, also can be fixed in downsides such as lower cover, and even both sides is provided with all up and down also passable.
Below, just be applicable to that other embodiments of the present invention that lawn care is cut are illustrated.In addition, because the primary structure of the driving mechanism that lawn care is cut etc. is identical with embodiment 1, thus the part that has with spline structure is marked identical symbol, and the explanation of omitting this part.
(embodiment 2)
Lawn care shown in Figure 3 is cut among the 1a, will be as the protection portion 25 of guard block to be provided with from the lower end of housing 2 is outstanding forward with the integrally formed mode of housing 2.As shown in Figure 4; this guard block 25 also is the plate body of synthetic resin system (for example using and the ABS resin of housing 2 with material); itself and last sword 11 near and cover whole finishing sword 14 from the top in non-contacting mode; the front portion is outstanding protection rod 26, the 26...... that is provided with the pinnacle of pectination, and each protects the interval of 26 of rods isometric with the sword spacing of each blade 11a of last sword 11.In addition, protect all outstanding thin excellent portion 27 that is provided with diameter less than excellent 26 tops of protection in top of rod 26, and in this thin excellent portion 27, coat the cap member 28 of the rubber system that is equipped with, be used as elastomeric element at each.Under the normality, this cap member 28 is positioned at the protective position than the actuating range of finishing sword 14 outstanding slightly forward (approximately outstanding 2mm), and have can be by the elasticity of external force deformation.
Cut with regard to the 1a with regard to having as mentioned above the lawn care of structure; under common user mode; because the top of each cap member 28 is more outstanding than finishing sword 14 in the protection portion 25; therefore in dressing operation; even if there are barriers such as stone in the finishing place; also can contact with cap member 28 earlier, thereby can prevent to repair sword 14 contact barriers.
On the other hand, because during the lawn of locating on finishing wall limit etc., if finishing sword 14 is near wall, then the top of cap member 28 can contact and occur as illustrated in fig. 5 elastic deformation earlier with wall, allow finishing sword 14 further to move ahead, therefore, this structure can make the close lawn care that carries out of finishing sword 14 and wall W.
The lawn care of the embodiment 2 of Gou Chenging is cut 1a and also can be kept the protection of blade tip to finishing sword 14 in the above described manner, and carries out good operation can repair in the limit time.
The protection portion 25 that particularly adopts following a kind of pectination is as guard block, this protection portion 25 is arranged on the housing 2 along finishing sword 14, and be set side by side with a plurality of protection rods 26 on it, the top of these a plurality of protection rods 26 is provided with cap member 28, and it is more outstanding than the actuating range of finishing sword 14 under normal conditions; And, can be under the effect of external force external force, cap member 28 produces distortion, keeps out of the way in the actuating range of repairing sword 14, thus, can form guard block with simple structure.In addition, can also carry out damage or the corresponding replacing of deterioration with cap member 28.
In addition; in the present embodiment 2, also can carry out suitable variation, particularly protect the syndeton between rod and cap member quantity and the form of protecting rod 26; thin excellent portion can be set and directly cap member be enclosed within on the protection rod, perhaps utilize integrally formedly to make the two integrated etc.
In addition, protection portion also can be by being integrally formed in the downside that the first-class mode of lower cover is arranged on the finishing sword, and perhaps both sides are provided with simultaneously up and down.
(embodiment 3)
Lawn care shown in Figure 6 is cut among the 1b, as shown in Figure 7, plastic lower cover 30 be provided with the fore-and-aft direction be long axis direction through hole 32,32 ..., screw 31 run through this through hole 32,32 ... thereby lower cover 30 is loaded on the housing 2, thus, lower cover 30 becomes the sliding panel that can utilize above-mentioned through hole 32 to slide along fore-and-aft direction.State after the lower cover 30 of the latter half among the figure is laid down in (A) expression among this Fig. 7.The front portion of this lower cover 30 is pectination when overlooking, that is, and and the pointed protection of outstanding forward configuration portion 33,33......, and make that the interval and the sword spacing between each the blade 12a on the following sword 12 of 33 in each protection portion are isometric.
In addition, by the position, back, upwards erect and be provided with hooking sheet 34, and between the rear side inner surface of hooking sheet 34 and housing 2, be provided with along the fore-and-aft direction setting and be used as the helical spring 35 that applies force mechanisms at the center line of lower cover 30 upper surfaces.Therefore, utilize 35 pairs of lower covers 30 of helical spring to apply power under the normality, make screw 31 be positioned at the rear end of through hole 32, make the top of protection portion 33 more outstanding slightly forward, be positioned at progressive position (protective position) than the actuating range of finishing sword 14.
On the other hand, the rear portion of the side surface in the housing 2 is provided with block 36.This block 36 is arranged on the below of support plate 37 in movable up and down mode, and utilize the helical spring 38 that is arranged between block 36 and the support plate 37 to apply power to this block 36, be located at the lower position that contacts with lower cover 30, wherein, support plate 37 is outstanding the setting in housing 2.On the upper surface of lower cover 30, be formed with recess 39, embed for the block 36 that is positioned at progressive position.
Therefore, limited its slip by block 36 under lower cover 30 normalities, make it be positioned at progressive position, but as shown in Figure 8, be formed with operating sheet 41 on the block 36, and the window 40 of this operating sheet 41 through being arranged at housing 2 sidepieces reaches outside the housing, from this point as can be known, when sliding upward, can make block 36 break away from recess 39, then remove its restriction the slip of lower cover 30 when utilizing operating sheet 41 to make block 36 overcome the applying power of helical spring 38.
With regard to the lawn care with said structure is cut 1b; because under common user mode; the top of protection portion 33 of lower cover 30 that is positioned at progressive position on it is forwards more outstanding than the actuating range of finishing sword 14; therefore; even if there are barriers such as stone in the finishing place; also can be that guard block 33 contacts with barrier earlier, thereby prevent finishing sword 14 contact barriers.
On the other hand; during the lawn located on finishing wall limit etc.; if under the state that block 36 slides upward; make finishing sword 14 rely on wall, then the top of guard block 33 can contact with wall earlier, and the power that applies that lower cover 30 then overcomes helical spring 35 moves backward; allow finishing sword 14 further to move ahead; therefore, can directly make finishing sword 14 close, carry out lawn care with wall.
Lawn care with above-mentioned embodiment 3 of said structure is cut the protection that also can keep the blade tip of finishing sword 14, and has good working when repairing in the limit.
In addition; present embodiment adopts sliding panel (lower cover 30) as guard block; wherein sliding panel can slide along finishing sword 14 front and back; and in the time of under normal conditions; this sliding panel is applied power by helical spring 35 protective position forwards, and, under the effect of external force; it retreats in the actuating range of finishing sword 14, so just can obtain the guard block that can retreat from protective position simply.Particularly in, present embodiment uses existing lower cover to come the double as sliding panel, can guarantee the Rational structure that number of components is less.
In addition, with regard to embodiment 3, also can in addition,, then still can make sliding panel be applied power to protective position sliding panel and following cover split-type setting at the upside slip and the quilt of finishing sword if the space allows.In addition, also can the helical spring that a plurality of conducts apply force mechanisms be set at the sliding panel rear, can also use the helical spring other forms of force mechanisms that apply such as leaf spring in addition.
In addition, the slide-and-guide of sliding panel also is not limited to be realized by screw and slotted hole, also can realize by the ways that uses other kinds simultaneously and other structures such as block that are used for limit slippage plate sliding position, wherein, described ways can be formed by slide rails such as rib and the guide parts such as groove that cooperate with this slide rail.
On the other hand, the block mechanism of sliding panel also is not limited to the snap-fit relationship that block and recess are formed, also can do suitable variation with regard to its structure, promptly, use through hole to replace recess, perhaps do not use recess or through hole, only make structures such as the direct butt of block and sliding panel rear end, stop it to move backward with this.
(embodiment 4)
With regard to Fig. 9, lawn care shown in Figure 10 were cut 1c, it was provided with plastic flap 42 and is used as guard block above finishing sword 14.This flap 42 also is that the front portion is pectination when overlooking; promptly; with outstanding forward pointed protection rod 43, the 43...... of being provided with of the isometric mode of the sword spacing between each blade 12a of spacing and following sword 12; each is protected the top of rod 43 to be bent downwardly and forms header board 44; when flap 42 was positioned at the protective position of its lower surface and the relative configuration of upper surface of last sword 11, each protection rod 43 covered finishing sword 14 down with the anterior discontiguous mode tops of its header board 44 and finishing sword 14.
On the other hand, extend back in the both sides of flap 42 and be provided with a pair of arm 45,45.As shown in figure 11, the set cylindrical portion 46 in the rear end of each arm 45, by the screw pivoting support in from the left and right sides of housing 2 towards outside on the outstanding flange part 47,47 that is provided with, so that cylindrical portion 46 can be rotated around its axle center.But, the torsion spring 49 that applies force mechanisms as rotation is installed on cylindrical portion 46, a side of this torsion spring 49 and cylindrical portion 46 cards end, and opposite side and housing 2 cards end, and come to making flap 42 apply power with the direction that finishing sword 14 contacts to cylindrical portion 46 with this.
Thus; under normal conditions; flap 42 is applied power to Fig. 9, protective position shown in Figure 10; but as shown in figure 12; on the cylindrical portion 46 of a side, project upwards and be provided with bar 50,, can make cylindrical portion 46 overcome the applying power of torsion spring 49 and rotate by rearward pulling bar 50 down; thereby make the like that upwards proceeds posterolateral of flap 42 shown in solid line among Fig. 9, Figure 10 rotate, expose finishing sword 14.
Cut with regard to the 1c with regard to having as mentioned above the lawn care of structure; under common user mode; shown in double dot dash line among solid line or Figure 12 among Fig. 9, Figure 10; flap 42 protective position from above cover finishing sword 14; and the front portion that utilizes header board 44 protections to repair swords 14, therefore, even if there are barriers such as stone in the finishing place; also can be that header board 44 contacts with barrier earlier, prevent finishing sword 14 contact barriers.
On the other hand, during the lawn located on finishing wall limit etc., dwang 50 rearward shown in the solid line of Figure 12, then flap 42 upwards the retreating position of proceeds posterolateral rotate, expose finishing sword 14, therefore, can directly make finishing sword 14 close with wall, carry out lawn care.
With regard to the lawn care of the embodiment 4 that constitutes is in the above described manner cut 1c; it is provided with flap 42; be positioned at protective position under these flap 42 normalities; this moment, the top of this flap 42 was more outstanding than the actuating range of finishing sword 14, and can be with these flap 42 any move operations to retreating position, and its top falls back on when overlooking in the above-mentioned actuating range at this moment; by this flap 42 is set; can keep the protection of blade tip, and when repairing, also carry out operation well in the limit to finishing sword 14.
Particularly owing to adopt the rear end by the side of using pivoting support at housing 2; and then can be in the protective position that is positioned at the place ahead and be positioned at the flap 42 that rotates between the retreating position of proceeds posterolateral on the protective position as guard block; in addition; 42 rotations apply power to flap to protective position under normal conditions to utilize torsion spring 49, can easily carry out rotating operation to protective position and retreating position to flap 42 with this.
In addition, in the above-described embodiment, utilize a pair of arm to realize that flap rotates, but also can only realize the structure of the single armed supporting of flap rotation with the arm of any side.
On the other hand; be not limited to structure that guard block is rotated between protective position and retreating position; also can use as the used structure that can slide along fore-and-aft direction of embodiment 3; and utilize and to refer to push part or operating sheet etc., will be applied the structure of the at random rearward retreating position slide of sliding panel of power to protective position.In this case, as embodiment 3, sliding panel both can be also used as lower cover, also can design with following cover split-type.
(embodiment 5)
Lawn care shown in Figure 13 cuts 1d and embodiment 3 is used as sliding panel with lower cover 30 equally, but shown in Figure 14,15, present embodiment is formed with in the rear end side side of lower cover 30 along laterally outwards outstanding protruding plate 51, and screw threads for fastening has adjusting shank 52 as operating portion on this protruding plate 51, this adjusting shank 52 is the state that upwards erects and is the case shape of opening towards housing 2 sides, in addition, these adjusting shank 52 internal clearances are chimeric a locking press button 53.By making the cylindrical portion 56 that runs through support plate 55 on the locking press button 53 to the pin 54 of housing 2 side-prominent settings, locking press button 53 is supported in the protruding plate 52 in the mobile mode of can advancing and retreat with respect to the side surface of housing 2, wherein, support plate 55 is the word of falling L shape and by with mode upright be located at protruding plate 51 on parallel with regulating shank 52.Embed locating snap ring 57 in the mode of quadrature with it near the top of pin 54, the helical spring 58 by dress outside 55 of pin 54 and support plates makes locking press button 53 be applied power towards housing 2 side surfaces one side.On the other hand, on the side surface of housing 2, be formed with chimeric recess 59, be used for when lower cover 30 is positioned at progressive position, embedding for the pin on the locking press button 53 54.
Therefore, with regard to this lawn care was cut 1d, under the normality, lower cover 30 was applied power by advanced position, and the pin 54 of locking press button 53 embeds chimeric recess 59, the retreating of restriction lower cover 30.Herein, if catch locking press button 53 simultaneously and regulate shank 52, locking press button 53 is pressed in the adjusting shank 52, then selling 54 top extracts from chimeric recess 59, the restriction cancellation that retreats to lower cover 30, if therefore keep this state that adjusting shank 52 is retreated again, then can make lower cover 30 overcome the power that applies of helical spring 35 and mobile backward.
Cut with regard to the 1d with regard to having as mentioned above the lawn care of structure; because under common user mode; be in the protection portion 33 on the lower cover 30 of progressive position; its top is more outstanding than the actuating range of finishing sword 14; therefore; even if there are barriers such as stone in the finishing place, protection portion 33 also can contact with barrier earlier, has prevented finishing sword 14 contact barriers.
On the other hand; during the lawn located on finishing wall limit etc., will sell 54 in the shank 52 and extract by locking press button 53 being pressed into regulate, and this is extracted under the state in maintenance from chimeric recess 59; make lower cover 30 overcome the applying power of helical spring 35 and retreat, make protection portion 33 retreat and expose finishing sword 14.Thus, can make finishing sword 14 close, carry out lawn care with wall.
Lawn care at the embodiment 5 that constitutes is in the above described manner cut among the 1d, keeps the protection to the blade tip of finishing sword 14, when the finishing of limit, also can carry out operation well.
Particularly adopted following a kind of sliding panel (lower cover 30) as guard block in the present embodiment; this sliding panel can slide along finishing sword 14 front and back; and applied power by helical spring 35 to the protective position that is positioned at the place ahead under the normality, and utilize adjusting shank 52 that its back operation is arrived in the actuating range of finishing sword 14.By adopting this sliding panel, can be easily guard block be carried out move operation to protective position and retreating position.By existing lower cover is also used as sliding panel, can form the less relatively reasonable structure of number of spare parts here.
In addition, by locking mechanism (locking press button 53) is set on lower cover 30, from protective position retreating backward, has avoided the retreating of chance of the lower cover 30 that causes because of maloperation etc., thereby can provide more practical protection finishing sword 14 in order to restriction lower cover 30.Particularly being provided with locking press button 53 regulating to add on the shank 52, therefore, utilizing the operation between the two, can unlock and back operation preferable operability simultaneously.
In addition, regulate the side that shank or locking mechanism are not limited to be arranged on sliding panel, it also can be arranged on other positions, for example, as above-mentioned embodiment, from the upper surface of the rearwardly projecting protruding plate of the rear end of lower cover central authorities, the locking press button of regulating shank and being applied power from this adjusting shank upward is set, and, press locking press button, and the two is retreated etc. by regulating the adjustment operation between shank and locking press button.Certainly; locking mechanism also is not limited to above-mentioned locking press button; also can be various design developments, but so long as under normal conditions the structure that retreats backward from protective position of limit slippage plate get final product, be limited to leaf spring on the case side etc. such as the pin that will be arranged at the top under normal conditions.
Claims (3)
1. finishing machine, it contains electromotor in main body, and is provided with a pair of reciprocating finishing sword in that lower surface the place ahead of main body is outstanding, and this finishing sword is cut off action by above-mentioned motor driven on left and right directions, it is characterized in that,
Be provided with guard block, this guard block forwards stretches out along above-mentioned finishing sword, and under normal conditions, this guard block is positioned at protective position, and this moment, the top of this guard block was more outstanding than the actuating range of above-mentioned finishing sword; And under external force, the top of above-mentioned at least guard block can retreat in the above-mentioned actuating range when overlooking,
Guard block is a sliding panel, and it can slide before and after the finishing sword, and is applied in force mechanisms under normal conditions and applies power and remain on protective position to the protective position that is positioned at the place ahead; And under external force, this sliding panel can fall back in the above-mentioned actuating range.
2. a finishing machine contains electromotor in its main body, and outstandingly in lower surface the place ahead of main body is provided with a pair of finishing sword, and this finishing sword is cut off action by above-mentioned motor driven on left and right directions, it is characterized in that,
Be provided with guard block, under normal conditions, this guard block is positioned at protective position, and this moment, the top of this guard block was more outstanding than the actuating range of above-mentioned finishing sword; And the above-mentioned at least top of this guard block can be by at random to the retreating position move operation, and wherein, described retreating position is meant the position of the guard block when above-mentioned top falls back in the above-mentioned actuating range when overlooking,
Guard block is a flap; its rear end is by the side of pivoting support in main body; and can and be positioned between the retreating position of proceeds posterolateral on the protective position in the protective position that is positioned at the place ahead and rotate, and under the normality, this flap is rotated and applies force mechanisms apply power on above-mentioned protective position.
3. a finishing machine contains electromotor in its main body, and outstandingly in lower surface the place ahead of main body is provided with a pair of finishing sword, and this finishing sword is cut off action by above-mentioned motor driven on left and right directions, it is characterized in that,
Be provided with guard block, under normal conditions, this guard block is positioned at protective position, and this moment, the top of this guard block was more outstanding than the actuating range of above-mentioned finishing sword; And the above-mentioned at least top of this guard block can be by at random to the retreating position move operation, and wherein, described retreating position is meant the position of the guard block when above-mentioned top falls back in the above-mentioned actuating range when overlooking,
Guard block is a sliding panel, and it can slide before and after the finishing sword is done, and is applied in force mechanisms under normal conditions and applies power to the protective position that is positioned at the place ahead; And, utilizing operating portion, sliding panel can be operated in the actuating range that retreats into above-mentioned finishing sword.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006198611A JP4847240B2 (en) | 2006-06-23 | 2006-07-20 | Trimming machine |
| JP198611/2006 | 2006-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101297614A CN101297614A (en) | 2008-11-05 |
| CN101297614B true CN101297614B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710098346XA Expired - Fee Related CN101297614B (en) | 2006-07-20 | 2007-04-20 | Trimmer |
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| Country | Link |
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| CN (1) | CN101297614B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5995558B2 (en) * | 2012-07-04 | 2016-09-21 | 株式会社マキタ | Gardening hair clipper |
| US10172280B2 (en) | 2013-05-01 | 2019-01-08 | Cnh Industrial America Llc | Cutter guard assembly for knife drive of an agricultural farm implement |
| CN104798612B (en) * | 2014-01-24 | 2017-06-27 | 苏州宝时得电动工具有限公司 | Trimmer |
| JP6976187B2 (en) * | 2018-02-05 | 2021-12-08 | 株式会社マキタ | Electric tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404200A2 (en) * | 1984-11-28 | 1990-12-27 | Wing Chee Seck | Rotary cutting machines and components therefor |
| CN2077188U (en) * | 1990-03-31 | 1991-05-22 | 陈铁汉 | Portable electric mower |
| US5271156A (en) * | 1990-02-23 | 1993-12-21 | Fmg Timberjack Ab | Blade protector for clearing machine |
| EP1183940A1 (en) * | 2000-09-01 | 2002-03-06 | Paul Schmitt | Motor scythe or brush cutter with protector device |
| CN1375185A (en) * | 2001-03-14 | 2002-10-23 | 株式会社牧田 | Trimming machine and protection device thereof |
| DE10130516A1 (en) * | 2001-06-25 | 2003-01-09 | Manfred Saelinger Gmbh Maschin | System for protecting young plants when mowing between them with trimmer comprises frame which projects beyond cutter blades and has two branches, upper branch being horizontal and lower sloping downwards |
| US6810647B1 (en) * | 2003-03-24 | 2004-11-02 | Takvor Evrikoz | Lightweight lawn trimmer, mower and edger system |
| US6842985B2 (en) * | 2000-11-29 | 2005-01-18 | Black & Decker Inc. | Pivotal plant protector |
-
2007
- 2007-04-20 CN CN200710098346XA patent/CN101297614B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404200A2 (en) * | 1984-11-28 | 1990-12-27 | Wing Chee Seck | Rotary cutting machines and components therefor |
| US5271156A (en) * | 1990-02-23 | 1993-12-21 | Fmg Timberjack Ab | Blade protector for clearing machine |
| CN2077188U (en) * | 1990-03-31 | 1991-05-22 | 陈铁汉 | Portable electric mower |
| EP1183940A1 (en) * | 2000-09-01 | 2002-03-06 | Paul Schmitt | Motor scythe or brush cutter with protector device |
| US6842985B2 (en) * | 2000-11-29 | 2005-01-18 | Black & Decker Inc. | Pivotal plant protector |
| CN1375185A (en) * | 2001-03-14 | 2002-10-23 | 株式会社牧田 | Trimming machine and protection device thereof |
| DE10130516A1 (en) * | 2001-06-25 | 2003-01-09 | Manfred Saelinger Gmbh Maschin | System for protecting young plants when mowing between them with trimmer comprises frame which projects beyond cutter blades and has two branches, upper branch being horizontal and lower sloping downwards |
| US6810647B1 (en) * | 2003-03-24 | 2004-11-02 | Takvor Evrikoz | Lightweight lawn trimmer, mower and edger system |
Non-Patent Citations (2)
| Title |
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| JP特开2004-65193A 2004.03.04 |
| JP特开平9-28151A 1997.02.04 |
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| Publication number | Publication date |
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| CN101297614A (en) | 2008-11-05 |
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