CN101305157A

CN101305157A - Angle drive attachment

Info

Publication number: CN101305157A
Application number: CNA2006800417263A
Authority: CN
Inventors: D·A·科齐纳; E·D·阿德金斯
Original assignee: Nomis LLC
Current assignee: Nomis LLC
Priority date: 2005-11-09
Filing date: 2006-10-31
Publication date: 2008-11-12

Abstract

An angle drive attachment having an adjustable handle is provided. The angle drive includes an input shaft, an input shaft housing, a transmission, a handle mount, a handle, and an output socket. The handle allows the angle drive attachment to be adaptable to working environments having limited space or odd configurations. The input shaft rotates about the input axis of rotation and carried by the input shaft housing and drives the transmission. The output socket is connected to the transmission and rotates about an output axis of rotation and connects to a working bit. The handle mount mounts the handle to the input shaft housing. The handle, in cooperation with the handle mount, may be rotated about the input shaft housing, angled relative to the input shaft housing, and positioned axially linear along the input shaft housing.

Description

Angle drive attachment

CROSS-REFERENCE TO RELATED PATENT

Present patent application requires the U.S. Provisional Patent Application No.60/734 of application on November 9th, 2005,901 favourable part, and whole instructions of this application and disclosure are carried out combination as a reference in this integral body with them.

Technical field

The present invention relates generally to the annex of rotary power tool and rig, and relate in particular to the angle drive attachment that is used for rotary power tool and rig.

Background of invention

Rotary power tool and rig are normally known in the prior art.Rig has rotating driving device, and normally electric power or pneumatic motor to rotate a device for providing rotational output, is generally adjustable chuck.This adjustable chuck is attached to rig drill bit (bits), on turn screw drill bit or other rotary drilling-head to the rig, thereby makes these drill bits to be driven by the turning motor of rig.In addition, utilizing the angle drive attachment of the rotation output of rig is known in the prior art.This angle drive attachment will be converted to rotatablely moving around another axis around the rotation output movement of the fixing rig of an axis.These annexes allow rig to use in more limited working space.In these annexes some comprise extended side grip from annex, exert pressure on axially to allow the user to increase parallel with the axis of the output rotation of right angle drives.Though these devices have been suitable for the application of some restrictions, trial formerly can produce man-machine control, versatility, size and/or endurance issues.The present invention relates to the improvement of angle drive attachment aspect.

Brief summary of the invention

In one aspect, embodiments of the invention provide the improvement driven accessary of rotary power tool.This driven accessary is included in the output shaft of transmission or work end, moves with implementation and operation.This improved driven accessary comprises adjustable handle, and it has man-machine control and adjustable structure of improvement.The handle of this driven accessary can be regulated, thereby makes it stretch out from this annex, to work as annex just in use, provides effectively to hold to apply force on the driven accessary.In addition, this handle can be withdrawn, so that driven accessary can use in finite region closely.This handle can be selectively towards or be provided with away from the transmission end of annex, thereby make the handle that is in open mode approach the translator unit of annex, but handle can be provided with away from the operating side, also is convenient to the setting operation end in the closed area, also allows handle to extend with effective simultaneously.In addition, this handle rotatably is provided with, with the applicability and the ergonomics performance of further increase driven accessary.This handle rotatably is provided with, and makes it to be used easily and cosily by righthanded or left-handed people.

According to a more detailed embodiment, an angle drive attachment is provided, the linearity that it has with respect to the handle of conveyer has angle and rotation to adjust.This angle drive attachment comprises the transmission housing, power shaft, output shaft, handle installed part, handle and anchor clamps.This power shaft is supported in the transmission housing with along the rotation of input axis and comprise the end that can turn round.This output shaft is supported in the transmission housing, to rotate around the output axis angled with respect to the input axis.This output shaft comprises the connector that is connected on the work bit.This handle installed part is slidably mounted on the transmission housing and is disposed thereon with different angular coordinates with a plurality of different linearities.This handle extends from the handle installed part.These anchor clamps secure the handle mount on the transmission housing releasedly.

Another aspect of embodiment relates to the angle drive attachment of the pivot the selected adjustment with handle, and this aspect can be used in combination with above-mentioned aspect.This angle drive attachment comprises the transmission housing, power shaft, output shaft, handle installed part, handle and releasable lock.This power shaft is supported in the transmission housing with along the rotation of input axis and comprise the end that can turn round.This output shaft is supported in the transmission housing, to rotate around the output axis angled with respect to the input axis.This output shaft comprises the connector that is connected on the work bit.This handle installed part is installed on the transmission housing and limits a hinge.This handle via this hinge rotor be connected on the handle installed part.This releasable lock secures the handle on the handle installed part.This handle is selectively locked by the discharged lock in a plurality of diverse locations that are between abundant extension and the retracted position.

Others of the present invention, target and feature will become more obvious the detailed description below in conjunction with the accompanying drawings.

Brief description of drawings

The accompanying drawing that is incorporated into and forms a manual part shows several aspect of the present invention, and in conjunction with describing principle of the present invention is described.In the accompanying drawings:

Fig. 1 is the phantom drawing according to the example embodiment of the angle drive attachment of instruction of the present invention structure, and this annex has from the bottom of input shaft housing and extends and the handle angled with this input shaft housing;

Fig. 2 is the top view that annex is transmitted at the angle of Fig. 1;

Fig. 3 is the partial sectional view around the angle drive attachment of Fig. 2 of section line 3-3;

Fig. 4 is the exploded view that annex is transmitted at the angle of Fig. 1;

Fig. 5 is the phantom of the angle drive attachment of Fig. 3;

Fig. 6 is the phantom drawing of handle installed part of the angle drive attachment of Fig. 1;

Fig. 7 is the phantom drawing of angle drive attachment with Fig. 1 of the handle that is arranged essentially parallel to power shaft and input shaft housing;

Fig. 8 is the phantom drawing of the angle drive attachment of Fig. 1, and it has from respect to power shaft and the angled extended handle of handle installed part of input shaft housing;

Fig. 9 is the phantom drawing of angle drive attachment with Fig. 1 of the handle that is substantially perpendicular to power shaft and input shaft housing; With

Figure 10 is the phantom drawing with angle drive attachment of the Fig. 1 that is in open mode and shows the work bit apotheca.

Though the present invention will be described in conjunction with some preferred embodiment, be not intended to limit the present invention and be these embodiment.On the contrary, its intention covers all alternatives as additional claim definition that comprise within the spirit and scope of the present invention, revises and equivalent.

The specific embodiment

Referring to Fig. 1, a kind of angle drive attachment 10 that is used for rotary power tool is disclosed.The driven accessary 10 of this rotation is used in combination with the rotary power tool such as rig 11, with the output shaft of the rotation that changes this cutter.When utilizing this rotary power tool in the working space of restriction and common drill configuration can not use in this place the time, useful especially at that time.

The angle drive attachment 10 of the disclosure generally includes power shaft 12, input shaft housing 14, and angle changes transmission parts 16, handle 18 and handle installed part 20.As illustrating of Figure 4 and 5 the best, angle drive attachment 10 will be converted to around exporting rotatablely moving of axis 23 around rotatablely moving of input axis 21, and this output axis separates angularly with the input contour, is generally 90 degree, but also can uses other angle.

As illustrating of Fig. 3-5 the best, this power shaft 12 is supported by input shaft housing 14.This power shaft 12 extends between first end 22 and second end 24.First end 22 is configured on the rotary power tool that is connected to such as rig 11 (Fig. 1), and this instrument offers the rotation input of angle drive attachment 10 around axis 21.Especially, first end 22 structure is received in chuck 27 (Fig. 1) and goes up or be connected on any other output linkage such as the rotary power tool of socket.Second end 24 of power shaft 12 is connected on the conveyer 16.

Especially, this power shaft 12 inserts and transmits in housings 25, and connects and drive the input bevel gear 26 that transmits housing 25 inside.This input bevel gear 26 is around 21 rotations of input axis, and driving is arranged on the correspondence output bevel gear 28 that transmits in the housing 25 around output axis 23 (Figure 4 and 5).Usually, this

bevel gear

26,28 becomes the cone of about 45 degree with taper or frusto-conical.When these two size engagements, the output axis that they will rotate changes 90 degree.Therefore, in a preferred embodiment, input axis 21 and output axis 23 are perpendicular to one another.It should be understood, however, that angle drive attachment 10 can be constructed makes that twin shaft is each other with different angle settings by changing the circular cone tapering of

bevel gear

26,28.

As shown in the figure, power shaft 12, input bevel gear 26 and output bevel gear 28 looselys engage and are not supported by the bearing such as bearing shell or ball bearing.Yet, this power shaft, input bevel gear and output bevel gear can be supported in the bearing arrangement like this and be supported by ball bearing especially, to reduce friction.When utilizing angle drive attachment to be used to hole purpose, useful especially during the use of ball bearing.

This output bevel gear 28 integrally is connected on the output socket 34 and is supported on the axle 36.It should be understood that output socket and bevel gear need be by single manufacturings.This output socket 34 allow users selectively the joint angle driven accessary on work bit 37, such as rig drill bit or turn screw drill bit (see figure 1).In this embodiment, this output socket 34 has hexagonal socket 38, to receive work bit.This hex socket 38 has the hexagonal cross-section that has six sides.And this output socket 34 can be Magnetized Material, to keep the inside of work bit in hex socket 38 more reliably.Selectively, this output socket is adjustable chuck.This output bevel gear 28 is remained in the outlet opening 39 that transmits housing 25 by snap ring 40 with the whole output socket 34 that is connected.

This input shaft housing 14 is fixed on and transmits the transmission housing that housing 25 as above and together is provided with integral body.This input shaft housing 14 has common cylindrical shape and extends between bottom 42 and top 44.This input shaft housing 14 comprises

passage

46, and 42 integral body extend through input shaft housing 14 to the top 44 from the bottom for it, and has usually the circular section that receives power shaft 12 is set.This input shaft housing 14 is included in the end 48 that 44 places, top enlarge, and this top 44 has level and smooth surface usually.This input shaft housing 14 also comprises the main part 50 with brake area, and it has that between enlarged end 48 and bottom 42 axis extends and around a plurality of chambeies 90 of main part 50.This enlarged end 48 has the external diameter bigger than main part 50.

This enlarged end 48 is set up and is contained in the feed opening 54 that transmits housing 25.This feed opening 54 comprises with the keyway 56 of form of grooves in the sidewall of feed opening 54, and it is provided with the correspondent button 58 of holding the elongation that extends radially outwardly from enlarged end 48.The axial length of these key 58 extend through ends 48.This keyway 56 and key 58 are in conjunction with preventing around the rotation of input axis 21 input shaft housing 14 with respect to transmission housing 25.Be inserted in snap ring 60 axial restraint input shaft housing 14 in the feed opening 54 of transmission housing 25 in transmission housing 25.

As illustrating of Fig. 3-6 the best, handle installed part 20 selectively connects with respect to input shaft housing 14 and is provided with.This input shaft housing 14 is inserted by the passage in handle installed part 20 64.The bottom 42 of this input shaft housing 14 is inserted in the passage 64 at 66 places, top of handle installed part 20, and withdraws from from passage 64 at the place, bottom of handle installed part 20.

This handle installed part 20 comprises and radially can enlarge and retractible cylindrical fixture 72, is used for fixing handle installed part 20 on the main part 50 of input shaft housing 14.These anchor clamps 72 are made by elastomeric material and are comprised two

holder parts

74,76, and they have C type cross section and have thread outer surface.This

holder part

74,76 is tapered, thereby makes thread outer surface have the varied radius with respect to input axis 21.Especially, the radius of external surface is in that 66 direction increases from the bottom 68 of handle installed part 20 to the top.This

holder part

74,76 is separated from one another by

groove

78,80, to allow radially inwardly with outwardly-bent mobile.Retainer 82 screw engagement with internal whorl are to holder

part

74,76, with clamper 72 on the main part 50 of input shaft housing 14.When retainer 82 was threaded on the anchor clamps 72, retainer 82 radially inside and fexible bias pressure towards each other and two

holder parts

74,76 of compression to reduce the internal diameter of passage 64, became tight thereby make

holder part

74,76 center on input shaft housing 14.Selectively, this retainer can for taper and holder part have the internal diameter of constant radius or retainer can be fully little with respect to the external diameter of anchor clamps 72, thereby make holder part abundant fexible bias pressure toward each other.

This

holder part

74,76 comprises the corresponding brake area with a plurality of outstanding 88 forms, with the part that engages corresponding a plurality of chamber 90 selectively in the external surface of the main part 50 of input shaft housing 14.Should outstanding 88 and chamber 90 engage to prevent that handle installed part 20 from endwisely slipping around input shaft housing 14 rotations or with respect to input shaft housing 14.

These anchor clamps 72 and retainer 82 limits a relaxed state, and wherein retainer 82 is towards the bottom of handle installed part 20 68 threads engage, thereby makes

holder part

74,76 launch and outstanding 88 break away from chambeies 90, as shown in Figure 3.Define a kind of state that tightens, wherein retainer 82 is towards the top of handle installed part 20 66 threads engage, and the

extrusion clamp part

74,76 toward each other, thereby makes outstanding 88 engagement cavities 90.It should be understood that when being in relaxed state that this handle installed part 20 axially or on the direction of rotation selectively connects input shaft housing 14 a plurality of.

This handle installed part 20 connects handle 18 on input shaft housing 14, and is arranged so that handle stretches out from input shaft housing 14 with different angles selectively, shown in Fig. 7-9.

Referring to Fig. 4-6, handle 18 carries out hinged via joint 98 with respect to handle installed part 20, and this joint 98 can hingedly be fixed in the groove 99 of handle installed part 20.In the opposite end in joint 98 is inserted in the groove 99 of swivel pin 100 rotor ground fixing joints 98 at handle installed part 20 in the hole 104 in the hole 102 and in the handle installed part 20.This handle 18, it comprises first and second handle portions 106,108, the lock pin 112 via entering from the extended axle in the end of first in command's part 106 110 and screw thread the axle 110 is connected on the joint 98.This 110 bottom side 116 from joint 98 fits in the hole 114 joint 98 slidably.This lock pin 112 is slidably inserted into the hole 114 and is threaded in the axle 110 to secure the handle on the joint 98 from the upside 118 in joint 98.The external surface that this hole 114 has hexagonal cross section and axle 110 has corresponding hexagonal cross-section.This structure prevent handle 18 in the hole 114 inside and be rotated with respect to joint 98.

Be arranged on from lock pin 112 extend radially outwardly in abutting connection with the spring 122 bias voltage lock pins 112 between the interior abutment surface 125 in shoulder 124 and joint 98 away from joint 98.When lock pin 112 bias voltages during away from joint 98, axle 110 is drawn in the hole 114.This handle 18 can break away from from the joint 98 of compression spring 122, thereby makes traction the hole 114 of lock pin 112 on the direction that the upside 118 from the joint extends to bottom side 116.

This lock pin 112 comprises axially outstanding finger piece 126, with respect to handle installed part 20 handle 18 to be set selectively.Especially, groove 99 comprises a plurality of chambeies 128, and it is provided with and receives finger piece 126, selectively to determine the angle that handle 18 extends from handle installed part 20 with respect to input shaft housing 14.In order to change the position, angle of handle 18, the user applies tractive force on handle 18 on away from the direction in joint 98, thus on joint 98 and chamber 128 directions that are inserted into away from the joint traction finger piece 126, thereby limit an adjustment state.Then, via joint 98 rotations, this joint 98 is hinged on the handle installed part 20 handle 18 with respect to handle installed part 20.Then, this handle 8 discharges, thus make spring 122 towards the joint 98 biases handle 18, thereby force lock pin 112 away from joint 98, thereby make finger piece 126 be bonded on again in the cavity 128 that limits in the groove 99 of handle installed part 20.

By being connected on the input shaft housing 14 via handle installed part 20, handle 18 can change basically with respect to the position and orientation of transmission housing 25, thereby makes angle drive attachment can use in the working space with different structures and obstruction.At first, referring to Fig. 1 and 3, handle 18 can be respectively towards the

top

44 or 42 endwisely slip along input shaft housing 14 towards the bottom, with towards or away from transmitting housing 25 handle is set.

Secondly, handle 18 and handle installed part 20 can rotate fully around input shaft housing 14.This feature is more beneficial for using under condition of work closely.This allows angle drive attachment to be applicable to dexterous people or left-handed people easily, thereby minimizes the zone that needs storage.It should be understood that handle 18 will rotate around input shaft housing 14 usually, thereby make handle 18 can be set on the side of input shaft housing 14.

Once more, as previously described, handle 18 can selectively rotate via joint 98, to adjust the angle of handle 18 with respect to input shaft housing 14.This comprises perpendicular to input shaft housing 14, as shown in Figure 9, is parallel to input shaft housing 14, as shown in Figure 7 and centre position as shown in Figure 8.This parallel position (Fig. 7) uses in state and the optimum position for storing very closely.In use, the upright position of Fig. 9 is most preferred, hinders unless handle 18 is subjected to working environment.

Handle 18 is further characterized in that it comprises the storage chamber that is used for work bit, as shown in figure 10.In order to limit storage chamber, first in command's part 106 is hinged on second in command's part 108 by swivel pin 134.Swivel pin 134 inserts by two holes 136,137 in second in command's part 108 and the hole in first in command's part 106 (see figure 4)s 138.As shown in figure 10, first in command's part 106 comprises a plurality of chambeies 140 that are used to hold work bit.In a preferred embodiment, this chamber 140 has hexagonal shape, and it is provided with the end that sliding fit receives work bit.Only partly extend by the thickness of first in command's part 106 in this chamber 140.Second in command's part 108 comprises big storage chamber 142, when in the closed position, and the other end of its overlapping operation drill bit, and the fixing operation drill bit is in the inside of handle 18.

Second in command's part 108 comprises two side 146,148, and it is superimposed upon on the corresponding shoulder part 150,152 of first in command's part 106.Preferably, sidewall 146,148 and shoulder part 150,152 snap-in cooperations or the stack of frictional fit ground, thereby make second in command's part 108 be not easy to open rotatably, thereby prevent that handle portion 106,108 from separating easily and allow work bit to come off with respect to first in command's part 106.

All references quoting comprise publication, and patent application and patent are carried out the combination of same degree as a reference at this, just like each with reference to separately and specifically referring in conjunction with and set forth with its full content at this.

In describing scope of the present invention the use of the term " a " of (particularly below the scope of claim in) and " an " and " the " and similar object be explain cover odd number with plural both, unless have other explanation or context to know contradiction at this.Term " comprising ", " having ", " including " and " containing " sees as to be unconfined term (that is, meaning " including but not limited to "), unless otherwise indicated.This number range only enumerate intention as individually relating to the stenography method that falls into each the independent numerical value in this scope, unless in this other explanation, and each independent resin-bonded goes in the manual, narration is the same separately at this just like it.All methods described here are implemented with any suitable order, unless in this explanation or clearly opposition in addition in context in addition.In the use of this any He all example that provide, the perhaps language of example (for example, " such as "), intention is not made restriction to scope of the present invention just to the best the present invention being shown, unless requirement in addition.In manual, should not have language to constitute and be considered as any claim composition that do not propose, unless be necessary enforcement of the present invention.

The preferred embodiments of the present invention are described at this, comprise the best mode of the present invention that is used to implement known for inventors.The variation of these preferred embodiments is obvious for the those of ordinary skills that read above-mentioned manual.The inventor can expect this variation of enforcement that skilled skilled worker can be suitable, and the inventor is intended that the present invention of enforcement, except specifically describing at this.Therefore, present invention resides in all modifications and the equivalent of the theme of describing in the additional claim of applicable law permission.And, any combination of the above-mentioned part that might change is surrounded by invention, unless in this explanation or pass through context clearly opposition in addition in addition.

Claims

1. angle drive attachment, it comprises:

The transmission housing;

Power shaft, it rotatably is supported in the transmission housing, and to rotate along the input axis, this power shaft has the end that can turn round;

Output shaft, it rotatably is supported in the transmission housing, and to rotate along the output axis angled with respect to the input axis, this output shaft has the connector on the work bit of being connected to;

The handle installed part, it is slidably mounted on the transmission housing, and disposed thereon with different angle positions with a plurality of different linearities;

Handle, it extends from this handle installed part; With

Anchor clamps, it secures the handle mount on the transmission housing releasedly.

2. angle drive attachment as claimed in claim 1, but also comprise the retainer of threads engage anchor clamps, and wherein the relative transmission housing of this retainer compresses this anchor clamps.

3. angle drive attachment as claimed in claim 2, wherein at least one of retainer and anchor clamps is taper, thereby makes retainer at least one direction and cumulative ground of the relative rotation compression clamp between the anchor clamps.

4. angle drive attachment as claimed in claim 2, wherein transmission housing or anchor clamps comprise brake area, and another of transmission housing and anchor clamps comprise be configured to selectively with corresponding at least one that brake area cooperates engage outstanding, selectively to prevent handle installed part moving with respect to the transmission housing.

5. angle drive attachment as claimed in claim 2, wherein this handle installed part and anchor clamps whole formation in single main body, this handle installed part is radially outward outstanding from these anchor clamps, these anchor clamps comprise solid circles cylindricality part and have the thread spindle end parts that extends axially groove that this thread spindle end parts is held retainer.

6. angle drive attachment as claimed in claim 5, wherein this solid circles cylindricality partly has the diameter bigger than thread spindle end parts, this solid circles cylindricality part is supported by the cylindrical bearing surface rotation of transmission housing, this single main body also with respect to the drive shell axon to moving, and be included in device between thread spindle end parts and the transmission housing, locking anchor clamps to the transmission housing with stoping.

7. angle drive attachment as claimed in claim 1, comprise that also rotor is connected to the handle on the handle installed part, this handle has lock pin, selectable one of the lock chamber that its a plurality of angle intervals that engage the handle installed part in bonding station are opened, prevent that handle from moving with respect to the pivot of handle installed part, and move with respect to the pivot of handle installed part to allow handle in release lock chamber in slack position.

8. angle drive attachment as claimed in claim 7 also comprises biasing member, its with towards with the mode fexible bias pressure lock pin of selecting the lock chamber to engage.

9. angle drive attachment as claimed in claim 8, wherein this biasing member and handle are arranged so that traction on the handle with relative biasing member effect, and remove lock pin from the lock chamber of selecting, and release handle allows lock pin to be inserted in the lock chamber of selection.

10. angle drive attachment as claimed in claim 9, be connected to the joint on the handle installed part with also comprising rotor, it is provided at pivotally connected between handle and the handle installed part, this joint sliding support handle, thereby make that the traction on the handle will be with respect to the joint slide handle, to remove lock pin from the lock chamber.

11. angle drive attachment as claimed in claim 10, wherein handle comprises at least one chamber that holds at least one work bit.

12. an angle drive attachment, it comprises:

The transmission housing;

The handle installed part, it is installed on the transmission housing;

Via hinge pivot be connected to handle on the handle installed part;

Secure the handle to the releasable lock on the handle installed part, this handle is by selectively locking in the releasable a plurality of diverse locations that are locked between abundant stretching, extension and the retracted position.

13. angle drive attachment as claimed in claim 12, wherein this releasable lock comprises lock pin, and it engages one that selects in a plurality of locks chamber releasedly.

14. angle drive attachment as claimed in claim 13 also comprises biasing member, its mode bias voltage lock pin to engage towards the lock chamber with selection.

15. angle drive attachment as claimed in claim 13 also comprises the joint that pivotally is installed on the handle installed part, to provide hinged, this joint sliding support handle.

16. angle drive attachment as claimed in claim 15, wherein this handle with the horizontal direction of the axis of rotation in joint on be slidably.

17. angle drive attachment as claimed in claim 15 also comprises biasing member, it is towards the part of holding of the bonding part of joint and lock pin biases handle, with away from the joint and towards with the engaging of the lock chamber of selecting.

18. angle drive attachment as claimed in claim 14, wherein this biasing member is the disc spring that compresses between lock pin and joint.

19. angle drive attachment as claimed in claim 13, wherein a plurality of chambeies are spaced apart angularly with respect to the axis of rotation of hinge.

20. angle drive attachment as claimed in claim 12, wherein releasable lock becomes to make the traction on handle to discharge this releasable lock with handle structure, allowing handle to reset to abundant stretching, extension and fully in the diverse location between the withdrawal, and release handle lockable handle is on the position of selecting.