CN102165205A

CN102165205A - Drive shaft joiner system

Info

Publication number: CN102165205A
Application number: CN2009801374856A
Authority: CN
Inventors: 卡尔·诺顿
Original assignee: Victa Lawncare Pty Ltd
Current assignee: Victa Lawncare Pty Ltd
Priority date: 2008-10-02
Filing date: 2009-09-03
Publication date: 2011-08-24
Also published as: NZ591953A; AU2009299098A1; WO2010037159A1; BRPI0920439A2; AU2009299098B2

Abstract

A drive shaft assembly that is to extend between an internal combustion engine so as to be driven thereby, and a garden tool such as a line trimmer or edge cutter. The assembly (10) includes a pair of shafts (11, 12), with the shaft (12) having a pin (29) and flanges (27) that engage within a socket (16) of the shaft (11).

Description

The driveshaft mating system

Technical field

The present invention relates to actuated lever assemblies, particularly but do not relate to the actuated lever assemblies that is used for the power hand-held tool, for example garden instrument and electric tool uniquely.

Background of invention

Power garden tools generally includes elongated tubular member, is motor in the top, for example internal-combustion engine or electric motor, and be the annex of carrying out specific function (for example pruning or cutting) at its other end.This tubular assembly generally includes the top of being fixed in motor and the bottom of being fixed in annex.What be positioned at tubular assembly is a plurality of bars, these bars is engaged make function transmit betwixt.This structure makes starts function and various types of annex to use together, for example limit cutter or line cutter.Each bar is all rotatably mounted by tubular member.When coupling, another driveshaft transmission merit that links to each other with annex thereby driveshaft is connected to motor drivingly.

When assembling during driveshaft discussed above and since bar continually offset direction cause being difficult to usually correctly bar be engaged.

Goal of the invention

The objective of the invention is to overcome or improve above shortcoming substantially.

Summary of the invention

Actuated lever assemblies disclosed herein comprises:

First bar, have longitudinal axis and first end, described first end comprises socket, and the groove perpendicular to described longitudinal axis is arranged on the described socket, described socket also comprises a pair of guiding face spaced apart from each other, and described guiding face separates towards described groove polymerization and from described longitudinal axis; And

Second bar, the coaxial longitudinal axis of longitudinal axis with described relatively first bar, described second bar has the end to engage with described socket, described second bar also comprises the flange that extends along the direction vertical with the longitudinal axis of described second bar, thereby described flange energy and described guiding face engage and are directed engaging with described groove, to transmit merit between described first bar and described second bar.

Preferably, described guiding face extends angularly with respect to the longitudinal axis of described first bar.

Preferably, described guiding face is first pair of guiding face, and the end of described first bar comprises second pair of guiding face, and this second guiding face is separated towards described groove polymerization and by the longitudinal axis of described first bar and first pair of guiding face, and second pair of guiding face also assembled towards described groove.

Preferably, described second pair of guiding face extends angularly about the longitudinal axis of described first bar, and at described first pair of guiding face and described second pair of tip that guiding face separates, described second pair of guiding face extends from described first pair of guiding face.

Preferably, described flange is last first flange that radially extends with respect to the longitudinal axis of described second bar, and described the second end is included on the direction opposite with described first flange second flange that radially extends from the longitudinal axis of described second bar, and described first flange can engage with described first pair of guiding face, and described second flange can engage with described second pair of guiding face, described first flange and described second flange can both engage with described groove, couple described second bar to make described first bar drivingly.

Preferably, described the second end comprises that longitudinal axis along described second bar is from described first flange and the extended pin of second flange, and described first end comprises the socket passage, and described pin is accommodated in the described passage so that described second bar is located coaxially with respect to described first bar.

Preferably, described first bar is rotatably mounted by first tubular member, and described second bar is rotatably mounted by second tubular member, and when described first bar and described second bar coupled, described first tubular member cooperated with second tubular member and encases described first end and the second end.

Preferably, described pin has the lead-in portion of taper.

The accompanying drawing summary

Illustrate optimal way of the present invention now with reference to accompanying drawing, wherein:

Fig. 1 is the equidistant exploded sketch of driven unit;

Fig. 2 is that the parts of the driven unit among Fig. 1 decompose schematic side view;

Fig. 3 is the schematic side view of assembly will engage the time;

Fig. 4 is as shown in Figure 3 the assembly schematic side view when being about to engage;

Fig. 5 is the schematic side view of assembly when engaging fully among Fig. 3;

Fig. 6 is the top cross sectional view that the assembly among Fig. 3 is cut apart along straight line 6-6;

Fig. 7 is the top cross sectional view that the assembly among Fig. 4 is cut apart along straight line 7-7;

Fig. 8 is the top cross sectional view that the assembly among Fig. 5 is cut apart along straight line 8-8.

Embodiment

Fig. 1 schematically describes actuated lever assemblies 10.This actuated lever assemblies 10 comprises first bar 11 and second bar 12, wherein second bar 12 part of garden instrument (for example line cutter or edge cutter).For example, thereby bar 11 can extend to internal-combustion engine by internal combustion engine drive, and bar 12 can extend to annex, for example line cutter or edge cutter instrument.When

bar

11 and 12 coupled, motor can be connected to instrument with being driven, thereby drives this annex.Usually, bar 11 is positioned on the tubular member 13, and motor is fixed on the top of this tubular member 13, and bar 12 is supported by second tubular member 14, and annex is fixed in the bottom of this second tubular member 14.Bar 11 is rotatably mounted and bar 12 is rotatably mounted by tubular member 14 by tubular member 13.

Bar 11 comprises end 15, and this end comprises socket 16.This socket 16 comprises and a pair ofly is spaced from each other and is the

flange

17 and 18 that angle ground extends with the longitudinal axis 19 of bar 11.This

flange

17 and 18 provides first pair of guiding face 19 and second pair of guiding face 20, and wherein guiding face 19 and guiding face 20 are all towards groove 21 polymerizations.

Flange 18 has tip 22, and certain face of guiding face 19 and certain face of guiding face 20 are angle ground with axle 19 and separate from tip 22, and flange 17 has tip 23, and certain face of guiding face 19 and certain face of guiding face 20 also separate from most advanced and sophisticated 23 with axle 19 with being angle.

Built-in guiding face 24 around axle 19 is parts of conical surface, and the longitudinal axis of this conical surface is exactly an axle 19.Guiding face 24 is towards passage 25 polymerizations of extending along axle 19.

Groove 21 extends along the direction perpendicular to axle 19, that is to say that groove 21 roughly radially extends with respect to axle 19, and passage 25 extends longitudinally along axle 19.

Bar 12 comprises end 26.This end 26 comprises a pair of flange 27 that roughly radially extends with respect to the axle 28 of bar 12.That is to say that this flange 27 substantially transversely extends with respect to axle 28 and can be positioned in the groove 21, make the rotation merit between

bar

12 and 13, to transmit.

The pin 29 that axially extends forward along axle 28 can insert passage 25.This pin 29 has the loading station 34. of taper

When bar 12 and bar 13 coupled, bar 12 moved towards bar 13, engaged with guiding face 24 and will sell 29 guiding to passage 25 thereby sell 29 simultaneously.Flange 27 engages with guiding

face

19 and 20, thereby bar 12 is moved angularly about its axle 19, engages until flange 27 alignment slots 21 and in groove 21 with connecting

rod

11 and 12. drivingly

When bar 12 engaged with bar 11, the end 29 of member 14 telescopically was contained in the end 30 of member 14, and clamp 31 is clipped in end 29 in the end 30 securely.Usually, clamp 31 comprises a pair of flange 32, and this is to being provided with bolt 33 between the flange 32, and turnbuckle 33 makes end 30 move to and end 29 fluid-tight engagement.

Claims

1. actuated lever assemblies comprises:

First bar, have longitudinal axis and first end, described first end comprises socket, and the groove perpendicular to described longitudinal axis is arranged on the described socket, described socket also comprises a pair of guiding face spaced apart from each other, and described guiding face separates towards described groove polymerization and by described longitudinal axis; And

Second bar, the coaxial longitudinal axis of longitudinal axis with described relatively first bar, described second bar has the end to engage with described socket, described second bar also comprises the flange that extends along the direction vertical with the longitudinal axis of described second bar, thereby described flange energy and described guiding face engage to be directed into described groove and engage, to transmit merit between described first bar and described second bar.

2. driveshaft as claimed in claim 1, wherein said guiding face extends angularly with respect to the longitudinal axis of described first bar.

3. driveshaft as claimed in claim 1 or 2, wherein said guiding face is first pair of guiding face, and the end of described first bar comprises second pair of guiding face, described second guiding face is separated towards described groove polymerization and by the longitudinal axis of described first bar and described first pair of guiding face, and described second pair of guiding face also assembled towards described groove.

4. driveshaft as claimed in claim 3, wherein said second pair of guiding face extends angularly about the longitudinal axis of described first bar, and at described first pair of guiding face and described second pair of tip that guiding face separates, described second pair of guiding face extends from described first pair of guiding face.

5. as claim 3 or 4 described driveshafts, wherein said flange is first flange that the longitudinal axis with respect to described second bar radially extends with predetermined direction, and described the second end is included on the direction opposite with described first flange second flange that radially extends from the longitudinal axis of described second bar, and described first flange can engage with described first pair of guiding face, and described second flange can engage with described second pair of guiding face, and described first flange and described second flange can both engage with described groove, thereby make described first bar couple described second bar drivingly.

6. driveshaft as claimed in claim 5, wherein said the second end comprises that longitudinal axis along described second bar is from described first flange and the extended pin of second flange, and described first end comprises the socket passage, and described pin is accommodated in the described passage so that described second bar is located coaxially with respect to described first bar.

7. driveshaft as claimed in claim 6, wherein said pin has the lead-in portion of taper.

8. as any described driveshaft in the claim 1 to 7, wherein said first bar is supported rotatably by first tubular member, and described second bar is supported rotatably by second tubular member, when described first bar and described second bar coupled, described first tubular member cooperated with second tubular member and encases described first end and the second end.