CN201156883Y

CN201156883Y - Tool for gardens

Info

Publication number: CN201156883Y
Application number: CNU2008200030469U
Authority: CN
Inventors: 查霞红; 喻学锋
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2008-01-17
Filing date: 2008-01-17
Publication date: 2008-12-03
Anticipated expiration: 2018-01-17

Abstract

The utility model relates to a grass cutter which comprises an actuating mechanism which extends rearwards from a main body shell of the grass cutter. The actuating mechanism comprises a fixed link which is arranged at the main body shell and a movable bar the position of which can be adjusted relatively to the fixed link, wherein, a positioning device is arranged between the fixed link and the movable bar; the positioning device comprises a first positioning piece arranged at the fixed link and a second positioning piece arranged at the movable bar; the first positioning piece and the second positioning piece can be meshed optionally and automatically locked at the meshing position; the movable bar can be folded relatively to the fixed link and can be regulated relatively to the fixed rod to operation positions of various heights .

Description

Garden instrument

Technical field

The utility model relates to a kind of garden instrument, the collapsible and adjustable mower of lever position of especially a kind of action bars.

Background technology

Usually, all be provided with the action bars that is used to carry out on outdoor gardening class such as the mower cutting tool, this type of action bars generally comprises the following action bars that is connected in mower main body both sides, and the last action bars that is connected with following action bars, the holding part of carrying out mower when last action bars is provided with for operation; Wherein go up action bars and be respectively two parallel bars with following action bars, and the width between the width between two upper control arms and two the following parallel bars is roughly all suitable with mower main body fuselage width, when mower is in running order, the action bars that is connected in the mower main body just extends certain length after one's death to mower, and the operator also compares safety in the end executable operations away from cutting tool; When mower is in off working state, mower need be collected and store, usually action bars is provided with two releasable retaining mechanisms respectively with following action bars connecting portion on the mower both sides, when mower temporarily quits work or collects, can discharge from following action bars, will go up action bars then and fold to reduce to collect volume with following action bars with going up action bars.Usually, in mower packing or transportation, following action bars is to pack to dwindle the machine volume of mower from main body dismounting back and last action bars.This retaining mechanism adopts locking nut that action bars up and down is rotated locking usually, this lock mechanism operative is more loaded down with trivial details, also more time-consuming, simultaneously when operation up and down action bars locked after, the relative position of action bars on short transverse just can not be regulated again up and down, this is just very inconvenient for the user who needs the different operating height.

The utility model content

For overcoming the deficiencies in the prior art, the utility model provides a kind of handled easily bar to carry out folding storage, can realize the relative operating position quick adjustment of upper and lower action bars again, can effectively reduce the garden instrument of entire package and transportation volume simultaneously.

The technical solution of the utility model is achieved in that a kind of garden instrument, comprise host shell, the operating mechanism that extends towards the rear from the garden instrument host shell, described operating mechanism comprises the dead lever that is arranged at body shell, energy relative fixed bar carries out the motion bar of position adjustments, described dead lever further comprises following action bars that connects the mower body shell and the intermediate bar that removably connects with following operation, described intermediate bar and following detachable connection of action bars, described intermediate bar and motion bar are pivotally connected; Between described intermediate bar and the following action bars cam lock holding mechanism is set, described cam lock holding mechanism is used for fixing intermediate bar and reaches the relative position of action bars down; Described intermediate bar comprises two parallel straight-bars, and described first keeper is arranged at wherein on the straight-bar; Described first keeper comprises a plurality of locating holes that are provided with along short transverse; The quantity that is provided with of described locating hole is three, and first keeper is provided with spigot surface in the top of locating hole; Described motion bar comprises the pair of parallel bar and draw close the formation kink on bearing of trend, second keeper be arranged at the corresponding parallel bar of first keeper on; Described second keeper comprises and the alignment pin of deciding the engagement of part hole that described alignment pin is fixedly connected on operator last; Described operator is being provided with the butting section, and described operator is moving with the butting section being that fulcrum is gone up the transhipment of operation bar pivot relatively; Be arranged with spring on the described alignment pin.

The utility model second embodiment medi-spring is arranged between the kink face of the inboard and motion bar of the free terminal of operator handle.

Compared with prior art, the beneficial effects of the utility model are: because the setting of positioner between the motion bar of garden instrument and the dead lever, make action bars very convenient when folding storage, the operating position of motion bar relative fixed bar can be selected to regulate and automatically lock at chosen position simultaneously, make whole adjustment process not only easily but also quick, by dead lever being arranged to dismountable intermediate bar and following action bars, make mower in packing or transportation, can further dwindle the volume of complete machine.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model mower schematic perspective view;

Fig. 2 is the utility model mower operating mechanism part three-dimensional exploded view;

Fig. 3 is the utility model mower action bars vertical view;

Fig. 4 A is the folding schematic diagram that the last action bars of the utility model mower descends action bars relatively;

Fig. 4 B is first view that the utility model mowing hands-operation bar descends action bars to lock relatively;

Fig. 4 C is second view that the utility model mowing hands-operation bar descends action bars to lock relatively;

Fig. 5 A is the cutaway view of originally putting along A-A hatching direction according to Fig. 3, and action bars descends action bars to be in latched position relatively on this moment;

Fig. 5 B be this according to the cutaway view of Fig. 3 along A-A hatching direction, action bars descends action bars disengagement to lock relatively this moment on, is in the state that can carry out position adjustments;

Fig. 5 C is that this is according to the cutaway view of Fig. 3 along B-B hatching direction;

Fig. 6 is the three-dimensional exploded view of the utility model mower operating mechanism second example;

1-mower 10-operating mechanism 20-cam lock holding mechanism 30-positioner wherein

2-host shell 11-holding part 21-handgrip 31-operator handle

3-collection grass case 12-switching mechanism 22-cam member 31a-butting section

4a-front-wheel 13-frizzen 22a-through hole 31b-guide part

4b-trailing wheel 14-intermediate bar 23a-pin 31c-connecting portion

Action bars 23b-pin 32-pin under the 5-power brick 15-

6-sectioned housing 15a-end 24-locking nut 33 (')-spring

R-back upper place 16-straight-bar 25-rigid carriers 34-alignment pin

16a-end 25a-sidewall 34a-pin-and-hole

The last action bars 25b-of 17-extends sidewall 34b-locating part

17a-end 26-pin 35-dowel hole

17b-kink 27-locking member 36-pin-and-hole

18-spigot surface 28-through hole 37-lining

19-back-up ring steel wire 29-locating hole 38-through hole

Embodiment

The utility model has come out with a kind of action bars of can regulating to different operating positions and the folding garden instrument of handled easily bar, this garden instrument can be a mower, trimmer, mower class cutting tool, as being implementation formula blower etc., now describe as specific embodiment with mower.

With reference to shown in Figure 1, mower 1 comprises host shell 2, and be installed on mower host shell 2 both sides and to the operating mechanism 10 of mower back upper place (diagram arrow R shown in direction) longitudinal extension, wherein, be provided with the motor (not shown) in the mower host shell 2, the top of host shell 2 is provided with the supply unit that promising motor rotation provides power, this supply unit is a rechargeable type power brick 5, and the sectioned housing 6 that is positioned at host shell 2 belows is by the cutting tool (not shown) of motor-driven rotation, host shell 2 bottoms are respectively arranged with a pair of front wheel 4a and rear roller 4b, are used to support mower 1 and carry out in ground; The rear of mower host shell 2 has removably connected the careless case 3 of collection; Wherein operating mechanism 10 comprises one for the operator is provided by the annular holding part 11 provide, and a frizzen 13 that is pivotally connected to holding part 11, is used for making things convenient under the normal operating state operator's actuatable switches mechanism 12 to carry out the operation of mowing.

With reference to Fig. 2, shown in Figure 3, operating mechanism 10 comprises action bars 15 down, last action bars 17, and the intermediate bar 14 between following action bars 15 of connection and the last action bars 17, wherein descend action bars 15 for being connected in mower main body 2 both sides and to a pair of parallel bar down of mower host shell 2 rear extensions, intermediate bar 14 roughly takes the shape of the letter U, it comprises that two sections are parallel to each other and straight-bar 16 that spacing and following action bars 15 spacings are complementary, the end 16a formation semicircular of straight-bar 16 and the round bar end 15a of following action bars 15 removably obvolvent connect, and following action bars 15 is locked by the cam lock holding mechanism 20 that is arranged at straight-bar 16 both sides respectively with this interface sites of intermediate bar 16.Wherein cam lock holding mechanism 20 comprises a handgrip 21, and two cam members 22 that extend and form bifurcated to handgrip 21 1 ends, cam member 22 is provided with the connection that plugs of the sub-23a of through hole 22a supply and marketing, the end of pin 23b is provided with screw thread, the other end is provided with pin-and-hole and carries out pin joint by pin 23a and cam member 22, the end that pin 23b is provided with screw thread passes straight-bar 16 end 16a and matched with locking nut 24 respectively after the perforate of action bars 15 round bar end 15a down, handgrip 21 by operation of cam retaining mechanism 20 can will descend the action bars 15 and the relative position of intermediate bar 14 to lock, release cam member 22 can be removed this latched position, the operator can dismantle intermediate bar 14 easily from following action bars 15, thereby can further facilitate for dwindling the volume of mower in transportation or packaging process.

Certainly, intermediate bar 14 can be connected or be arranged to one with following action bars 15, so just need not establish retaining mechanism 20 in addition on the action bars 15 down.In operating process, whole action bars 15 down, perhaps all relative mower main body housing with following action bars 15 of intermediate bar 14 fixedly installs, thereby forms dead lever, and action bars 17 relative fixed bars can fold or can become a motion bar in selecting diverse location to lock and go up.

Pivotally connected between intermediate bar 14 and the last action bars 17, and by positioner 30 its relative pivot location is locked.Both sides straight-bar 16 positions of intermediate bar 14 are set with a rigid carriers 25 respectively, and this rigid carriers 25 roughly takes the shape of the letter U, and it comprises the sidewall 25a of two opposing parallel, and one is welded fixing diapire with straight-bar 16 lower surfaces; Two rigid carriers 25 structures are not quite similar wherein, the sidewall 25a that wherein has a rigid carriers 25 at least one is positioned at the shortwall in straight-bar 16 outsides, and another sidewall is one to be positioned at the extension longwell 25b of straight-bar 16 inboards, extend the relative shortwall 25a of a longwell 25b end far away and on short transverse, evenly be provided with a plurality of locating holes 29, quantity is set is three to locating hole 29 in the present embodiment, and extends longwell 25b and form a spigot surface 18 in the top of the highest locating hole 29; Two parallel side wall 25a of U-shaped rigid carriers 25 are respectively equipped with perforate on the position that aligns on the 25b; Last action bars 17 is two and is parallel to each other and the mutual round bar of drawing close that bends on bearing of trend, last action bars 17 and intermediate bar 14 matched round bar end 17a are respectively equipped with perforate, pin 26 1 ends are arranged to blunt nosed, thereby the other end passes rigidity and inserts after the perforate of frame 25 and the perforate of round bar end to fix with locking member 27 and will go up action bars 17 and be pinned on the intermediate bar 14, and promptly going up action bars 17 can be that relative intermediate bar 14 of rotating shaft or time action bars 15 pivot with pin 26.Last action bars 17 relative stiffness carriages 25 are provided with a side round bar that extends longwell 25b and are provided with dowel hole 35, when last action bars 17 relative intermediate bars 14 pivot, this dowel hole 35 in last action bars 17 be provided with the position with extend on the longwell 25b three locating hole 29 positions respectively over against, promptly be the center of circle with pin 26 be the circular arc distribution extending on the longwell 25b with locating hole 29.

Positioner 30 comprises that also an operator is 31, this operator has free end and a junction 31c that the kink 17b profile with last action bars 11 is complementary to 31, this connecting portion 31c is provided with pin-and-hole 36 supply and marketing 32 and plugs, one end of alignment pin 34 also is provided with pin-and-hole 34a, alignment pin 34 fixedly connects with connecting portion 31c by pin 32, be arranged with spring 33 on the alignment pin 34, the other end of alignment pin 34 is inserted in the dowel hole 35 of action bars movably; In addition, be provided with a locating part 34b in position on the alignment pin 34 near dowel hole 34a; Operator is provided with a spherical butting section 31a (with reference to Fig. 3) to 31 inboard, operator is provided with two guide part 31b (only showing among the figure) up and down to 31 between connecting portion 31c and butting section 31a, this guide part 31b extends 31 inboards and support respectively two end faces up and down of last action bars 17 to operator, on the guide part 31b, carry out 31 motion spacing operator about back-up ring steel wire 19 is connected in respectively with two end simultaneously.When operator 31 under the situation that is not subjected to any external force effect, alignment pin 34 its end under the active force of spring 33 extends dowel hole 35; When operating mechanism 10 is under the normal operating conditions, alignment pin 34 ends that extend dowel hole 35 are meshed with one of them locating hole 29, alignment pin 34 automatically locks in this position of engagement under the maintenance of spring 33 elastic forces with locating hole 29, thereby the pivot position that will go up action bars 17 relative intermediate bars 17 positions; When operating mechanism 10 needs to regulate or collects, the elastic force applying light operator that only need overcome spring 33 is 31 free end, operator is offseted 31 the butting section 31a and the tube wall of last action bars 17, and as operator 31 pivot point is gone up action bars 17 relatively with this butting section 31a and make a pivoting action, this moment, the end of alignment pin 34 then can shift out from locating hole 29, feasible upward action bars 17 has been thrown off the locking with intermediate bar 14, and the relative position of going up action bars 17 relative intermediate bars 14 or following action bars 15 can be realized regulating, thereby can satisfy the required differing heights operating position of operator.

With reference to Fig. 4 A, AB shown in the 4C, is the position of operating mechanism 10 when being in different duties.When mower does not need execution work, the operator can be according to direction shown in Fig. 4 A, make the engagement of alignment pin 34 disengagements and locating hole 29 with proficiency pressing operation handgrip 31, another hand grips action bars 17 and makes it downward action bars 15 direction pivots, be switched to the position that exceeds the highest locating hole 29 that extends longwell 25b when last action bars 17, can select to discharge to operator 31 push, continue to make action bars 17 to descend action bars 15 to pivot till overlapped with it relatively again, like this, the volume energy that stores of mower 1 effectively is under control.When the relative position that needs to go up action bars 17 and following action bars 15 as the operator locks also executable operations, according to the direction shown in Fig. 4 B, to go up action bars 17 oppositely pivots, to extend the spigot surface 18 that the end of dowel hole 35 and rigid carriers 25 extend longwell 25b inconsistent when being switched to alignment pin 34, alignment pin 34 ends just can enter automatically along spigot surface 18 and extend longwell 25b and be arranged in first locating hole 29 on the short transverse, the automatic location of action bars 17 on first kind of height and position on the effect of spring 33 exerts oneself to realize; If extend the spigot surface 18 of longwell 25b when inconsistent in the end of dowel hole 35 and rigid carriers 25, even the operator discharges action bars 17, because the action of gravity of last action bars 17, alignment pin 34 can mesh first locating hole 29 automatically along spigot surface 18, and descends the relative position of action bars 15 to be locked on the intermediate bar 14 relatively action bars on this 17.When needs regulate to be gone up action bars 11 with respect to the relative position of action bars 15 down, only need the free end of pressing operation handgrip 31, operator rotates 31 around butting section 31a pivot, be fixedly set in the alignment pin 34 meeting disengagements of connecting portion 31c and the engagement of locating hole 29, the required operation height and position of action bars 17 in the adjusting, the releasing operation handgrip 31 then, alignment pin 34 can exert oneself to be meshed with the locating hole 29 that extends longwell 25b corresponding height position at the elastic reaction of spring 33, and action bars 17 is locked automatically with respect to the height and position of following action bars 15 on this moment.Certainly, extend the locating hole 29 that has the extreme higher position on the longwell 25b, the locating hole 29 of extreme lower position is also arranged, the quantity of this locating hole 29 and spacing can be provided with according to the adjusting needs of reality; When reaching 29 positions, lowest positioned hole, can stop the upward further downward pivot of action bars 11 by position-limit mechanism is set, thereby make adjusting have certain shift feeling when arriving last height and position, can not produce the unnecessary adjusting that reaches repeatedly and operate.

Shown in 5A, alignment pin 34 engaging locks are in the 3rd locating hole 29, be provided with lining 37 in the dowel hole 35 of last action bars 17, alignment pin 34 passes lining 37 and locating hole 29 engagements, the head of alignment pin 34 is arranged to flange shape, its bar portion relative head of diameter is less, lining 37 is arranged to step-like at dowel hole 35 openings near connecting

portion

31c, 33 on spring is arranged between the stage portion of the flange part of alignment pin 34 and lining 37, to such an extent as to overcome that the elastic force alignment pin 34 of spring 33 can move in lining 37 and with the disengagement engagement of locating hole 29.And locating part 34b has guaranteed that in the setting of alignment pin 34 the flange shape end of alignment pin 34 and the distance between the locating part 34b are constant, has promptly guaranteed the depth of engagement of alignment pin 34 with locating hole 29, avoids meshing too dark and situation generation that can't discharge.

Shown in 5B, operator is being subjected to pushing under the active force pivoting action that produces relative butting section 31b to 31, and alignment pin 34 produced in lining 37 and moved and throw off engagement with locating hole 29 this moment, and spring 33 is compressed; The operator can readjust the position of engagement of short transverse as required or can descend action bars 15 to fold relatively with going up action bars 17.When adjusting alignment pin 34 arrived required locating hole 29 height and positions, releasing operation handgrip 31, the elastic reset of spring 33 impelled alignment pin 34 and selected ground locating hole 29 to mesh locking again.

Shown in 5C, back-up ring steel wire 19 is connected in the through hole 38 of guide part 31b respectively with two end, two guide part 31b are supported in respectively on the tube wall of action bars 11, the design of back-up ring steel wire 19 makes that working as operator is subjected to certain limitation to 31 stressed pivoting angles, guide part 31b be arranged so that releasing operation handgrip 31 time, spring 33 in reseting procedure, guarantee the motion of connecting portion 31c obtain the guiding.

With further reference to shown in Figure 7, be second embodiment of the present utility model, this embodiment and a last embodiment have similarity, in order to express easily, now identical member are represented that with identical numbering identical member is not given unnecessary details yet herein; The spring 33 that will be sheathed on alignment pin 34 in the present embodiment originally has been modified to spring 33 ', and spring 33 ' is arranged between the kink 17b of operator and last action bars 17 inboard 31 free end, spring 33 ' one end attended operation handgrip 31, the other end connect goes up action bars kink 17b; Operating mechanism 10 is under normal mode of operation, and operator is 31 under the active force of spring 33 ', and the alignment pin 34 and the locating hole 29 that are fixedly set in connecting portion 31c are in the engaging lock allocation; When needing the position adjustments of action bars, making operator by pressing operation handgrip 31 free ends with the active force that overcomes spring 33 ' is 31 that fulcrum pivots with butting section 31a (with reference to Fig. 3), this moment, alignment pin 34 was thrown off and the engagement of locating hole 29 locking, and the operator can readjust the relative position of action bars 17 and following action bars 15.

Positioner 30 in the utility model comprises can select fixed locating hole of engaging lock 29 and alignment pin 34; but the utility model positioner is not limited to locating hole and this a pair of joggle piece of alignment pin; so can be also to replace other keeper with those skilled in the art's imagination; for example a pair of location end tooth can be arranged at action bars respectively; the connecting portion of following action bars; the location end tooth can be selected engagement and automatically lock on the action bars short transverse; as long as meet the wish of the utility model claim, all belong to protection category of the present utility model.

Claims

1. garden instrument, comprise host shell (2), the operating mechanism (10) that extends towards the rear from the garden instrument host shell, described operating mechanism comprises the dead lever (15) that is arranged at body shell, and energy relative fixed bar carries out the motion bar (17) of position adjustments, be provided with positioner (30) between described dead lever and the motion bar, it is characterized in that: described positioner comprises first keeper (25) that is arranged at dead lever, and be arranged at second keeper (31) on the motion bar, described first keeper (25) selectively meshes with second keeper (34), and first keeper (25) automatically locks in the described position of engagement with second keeper (31).

2. garden instrument according to claim 1 is characterized in that: described dead lever (15) further comprises the following action bars that connects the mower body shell, and the intermediate bar (14) that removably connects with operation down.

3. garden instrument according to claim 2 is characterized in that: between described action bars down and the intermediate bar cam lock holding mechanism (20) is set, is used for fixing intermediate bar and reaches the relative position of action bars down.

4. garden instrument according to claim 3 is characterized in that: described intermediate bar (14) comprises two parallel straight-bars (16), and described first keeper (25) is arranged at wherein on the straight-bar.

5. garden instrument according to claim 1 is characterized in that: described garden instrument is a mower.

6. according to claim 4 or 5 described garden instruments, it is characterized in that: described first keeper (31) and second keeper (31) selectively engagement on two different operating positions at least.

7. garden instrument according to claim 6 is characterized in that: described first keeper (25) comprises three locating holes (29) that are provided with along short transverse, and described first keeper (25) is provided with spigot surface (18) in the top of locating hole (29).

8. garden instrument according to claim 7, it is characterized in that: described motion bar (17) comprises the pair of parallel bar and draws close on bearing of trend and form kink (17b), second keeper (31) be arranged at the corresponding parallel bar of first keeper (25) on.

9. garden instrument according to claim 8 is characterized in that: described second keeper (31) comprises and the alignment pin (34) of deciding part hole (29) engagement that described alignment pin (34) is fixedlyed connected with operator handle.

10. garden instrument according to claim 9 is characterized in that: described operator handle (31) is provided with butting section (31a), and described operator handle is that fulcrum rotates relative to motion bar (17) pivot with butting section (31a).

11. garden instrument according to claim 10 is characterized in that: be arranged with spring (33) on the described alignment pin (34).

12. garden instrument according to claim 10 is characterized in that: described operator is provided with spring (33 ') to the kink (17b) of (31) and motion bar (17).