CN107614204A - Percussion tool with ring gear alignment characteristicses - Google Patents
Percussion tool with ring gear alignment characteristicses Download PDFInfo
- Publication number
- CN107614204A CN107614204A CN201680031488.1A CN201680031488A CN107614204A CN 107614204 A CN107614204 A CN 107614204A CN 201680031488 A CN201680031488 A CN 201680031488A CN 107614204 A CN107614204 A CN 107614204A
- Authority
- CN
- China
- Prior art keywords
- ring gear
- procapsid
- bearing bracket
- drive end
- end bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
Abstract
The present invention provides a kind of hand held electric tool, and it includes housing, power source, drive end bearing bracket, output shaft, procapsid and gear train sub-assembly.The output shaft protrudes from the output end at the drive end bearing bracket of the housing.The output shaft is also functionally coupled to the power source so that the output shaft is rotated when the power source is supplied electric power in response to the activation of the power source.The gear train sub-assembly is located in the inner space of the procapsid, and is configured to rotation being delivered to output mandrel from the power source.The gear train sub-assembly also includes ring gear, and the ring gear is around a part for the output shaft and the drive end bearing bracket of the adjacent housing.One group of guidance feature is provided, described group of guidance feature is configured to prevent the ring gear from moving relative to the power source and the procapsid, or prevents the procapsid from being moved relative to the housing.
Description
Related application
Present application be related to the U.S. provisional patent application cases filed an application on June 5th, 2015 the 62/171,741st and
Entitled " percussion tool (the Impact Tools with ring gear alignment characteristicses to file an application on June 3rd, 2016
Ring Gear Alignment Features) " U.S. Patent Application No. 15/172,420 and advocate the patent Shen
Please case priority.Subject matter disclosed in application case set forth above is clearly incorporated into the application by reference accordingly
In case.
Technical field
The present invention relates generally to electric tool, and more particularly, it is related to rushing comprising ring gear alignment characteristicses
Hit instrument.
Many electric tools include the output heart for being configured to the revolving force as caused by motor being converted into electric tool
The gear assemblies of the rotation of axle.In this type electric tool, it is typically desirable to make the position of motor and gear assemblies relative
In being fixed to one another to carry out the appropriate operation of electric tool.Therefore, the special characteristic on electric tool is made to include to help group
Fill specific structure and keep the specific structure relative to the guidance feature that other structures are fixed by be beneficial.
Therefore, the illustrative embodiment of the present invention provides a kind of hand held electric tool, it includes housing, power source, preceding
End cap, output shaft, procapsid, gear train sub-assembly, first group of guidance feature and second group of guidance feature.The housing supports institute
State power source and comprising drive end bearing bracket.The output shaft protrudes from the output end at the drive end bearing bracket of the housing.The output
Axle is also functionally coupled to the power source so that the output shaft is when the power source is supplied electric power in response to described
The activation of power source and rotated.The procapsid defines inner space.The output shaft is located at the described of the procapsid
In inner space.The gear train sub-assembly is located in the inner space of the procapsid, and be configured to will rotation from
The power source is delivered to output mandrel.The gear train sub-assembly is also comprising the ring gear characterized by cyclic rings main body, institute
Cyclic rings main body is stated with multiple teeth on the interior periphery of the cyclic rings main body and positioned at the cyclic rings main body
Surface on the outer periphery relative with the interior periphery.A part and adjoining of the ring gear around the output shaft
The drive end bearing bracket of the housing.The inside of procapsid described in the surface contiguous of the outer periphery of the ring gear
Surface.First group of guidance feature is located at the interior surface of the procapsid and the outside of the ring gear
On the surface on periphery, and it is configured to prevent ring gear from moving relative to the power source and the procapsid.It is described
Second group of guidance feature is located on the end cap of the procapsid and the housing, and is configured to prevent the procapsid
Moved relative to the housing.
It may also include more than the present invention and in other embodiments：The procapsid is hammer shell (hammer case)；Punching
Mechanism supports are hit in the hammer shell；The procapsid is attached to the housing using fastener；The gear train sub-assembly bag
Containing planetary gearsets；First group of guidance feature further comprises one be formed in the interior surface of the procapsid
Or multiple grooves, and be formed at the cyclic rings main body of the ring gear the outer periphery the surface on one
Or multiple corresponding ridges, wherein one or more described grooves are configured to receive one or more described corresponding ridges to prevent the fore shell
It is moved between body and the ring gear；First group of guidance feature has the ring for being formed at the ring gear
One or more grooves in the surface of the outer periphery of shape ring main body, and it is formed at the inside of the procapsid
One or more corresponding ridges on surface, wherein one or more described grooves be configured to receive one or more described corresponding ridges to prevent
Only it is moved between the procapsid and the ring gear；Second group of guidance feature, which has, is formed at the housing
One or more corresponding ridges on the outer surface of the drive end bearing bracket, wherein each in one or more described grooves of the procapsid
On the surface of the outer periphery of the sized cyclic rings main body that the ring gear is formed at receiving of person
Corresponding ridge and both one or more corresponding ridges for being formed on the outer surface of the drive end bearing bracket, wherein one or more described grooves
Each of it is axially extending along the interior surface of the procapsid；It is formed at the cyclic rings of the ring gear
The size of each of one or more ridges on the surface of the outer periphery of main body is substantially similar to shape
The size of each of one or more corresponding ridges on the outer surface of drive end bearing bracket described in Cheng Yu；The procapsid
The interior surface defines the internal diameter of the neighboring and the external diameter of the drive end bearing bracket of the ring main body of the ring gear；
The outside week of the cyclic rings main body of one or more the described grooves of the procapsid with being formed at the ring gear
One or more described ridges on the surface on side and one or more the corresponding ridges being formed on the outer surface are aligned so that institute
Procapsid is stated along central shaft towards the housing axial advancement to be engaged and fixed to the housing；The procapsid it is described
One or more grooves include ledge surface, and the ledge surface is configured to when the procapsid is fixed to the housing and supported
The ring gear is clamped by the drive end bearing bracket；First group of guidance feature further comprises being formed on the procapsid
One or more ridges and be formed at the ring gear the neighboring the surface on one or more respective slots, and
One or more described respective slots are formed on the drive end bearing bracket；The drive end bearing bracket is configured to around the ring gear extremely
A few part relative to the power source to be aligned and fix the ring gear, wherein the procapsid is configured to institute
Housing, the drive end bearing bracket and the ring gear is stated to be operatively coupled together；The drive end bearing bracket includes and is formed at the front end
Collar flange in the front end of lid, wherein the collar flange includes the inner surface for being configured to be formed chamber, the chamber is through fixed big
It is small to receive a part for the ring gear；The inner surface of the collar flange of the end cap is in the ring gear
When be operatively coupled to the outer surface of the ring gear to prevent that the ring gear from being rotated in the normal operation period；Institute
The outer surface that procapsid is configured to be fixed to the housing is stated, wherein the procapsid includes casing ledge and gear combination
Part surface, wherein the casing ledge is configured to be operatively coupled to the outer surface of the housing with by the procapsid
Fixed to tool housing, and wherein described gear assemblies surface be configured to abut the collar flange of the drive end bearing bracket with
And the ring gear, therefore the procapsid is cooperated with the drive end bearing bracket to hold the ring gear；Described first group is led
Insert molding is included to the ring gear of the drive end bearing bracket to feature, wherein the procapsid is operatively coupled to the ring
Shape gear, the drive end bearing bracket, and wherein procapsid includes the snout part (nose piece) being located at the neighbouring output mandrel；
The procapsid includes tapered segment and flange, wherein the tapered segment of the procapsid is configured to be operatively coupled to
The inner surface of the housing, and wherein described flange is configured to be operatively coupled to the outer surface of the ring gear；It is described
Ring gear includes the lip (lip) being formed on the interior section of the ring gear, wherein the lip is configured
To be cooperated with the drive end bearing bracket；The ring gear is fixed to the drive end bearing bracket, and wherein fixed character is formed at the annular
On gear, the fixed character is filled with the plastic material that the ring gear is secured to the drive end bearing bracket, wherein described solid
Determine feature and be selected from the group being made up of at least one bulge-structure and one or more recesses；The ring gear is fixed to described
Drive end bearing bracket, and wherein described hand held electric tool does not include following fixed character：The fixed character includes and is formed at institute
State one or more fastener engaged with fastener guide holes in drive end bearing bracket and be configured to and be formed in the ring gear
Corresponding fastener guide hole alignment；And ring gear is through being molded into the part of the procapsid.
Another illustrative embodiment of the present invention provides a kind of hand held electric tool, and it includes housing, power source, front end
Lid, output shaft, procapsid and gear train sub-assembly.The housing supports power source, and includes the drive end bearing bracket.The output shaft
Protruded from the output end at the drive end bearing bracket of the housing, and be functionally coupled to the power source so that the output
Axle is rotated when the power source is supplied electric power in response to the activation of the power source.The procapsid defines inside
Space, and the output shaft is located in the inner space.The gear train sub-assembly is located at the inside of the procapsid
In space, and it is configured to rotation being delivered to output mandrel from the power source.The gear train sub-assembly is also included by ring
The ring gear that shape ring main body characterizes, the cyclic rings main body have multiple on the interior periphery of the cyclic rings main body
Tooth and the surface on the outer periphery relative with the interior periphery of the cyclic rings main body.The ring gear is surround
The drive end bearing bracket of a part for the output shaft and the adjacent housing.The procapsid and the ring gear further wrap
Containing one or more guidance features, each of one or more described guidance features are configured to the procapsid and the ring
Shape gear matches.
It may also include more than the present invention and in other embodiments：One or more guidance features be configured to will be described before
Housing matches with the drive end bearing bracket；One or more described guidance features include one be formed in the interior surface of the procapsid
Or multiple grooves, and be formed at the ring gear the outer periphery surface on one or more corresponding ridges, wherein institute
State one or more grooves be configured to receive one or more described corresponding ridges with prevent the procapsid and the ring gear it
Between be moved；One or more described guidance features further comprise the table for the outer periphery for being formed at the ring gear
One or more grooves in face, and the corresponding ridge of one or more being formed in the interior surface of the procapsid, wherein institute
State one or more grooves be configured to receive one or more described corresponding ridges with prevent the procapsid and the ring gear it
Between be moved.
Another illustrative embodiment of the present invention provides a kind of hand held electric tool, and it includes housing, power source, front end
Lid, output shaft, procapsid and gear train sub-assembly.The housing supports the power source.The housing includes the drive end bearing bracket.
The output shaft protrudes from the output end at the drive end bearing bracket of the housing, and is functionally coupled to the power source, makes
The output shaft is obtained to be rotated in response to the activation of the power source when the power source is supplied electric power.The fore shell
Body defines inner space, and the output shaft is located in the inner space.The gear train sub-assembly is located at the procapsid
The inner space in, and be configured to rotation from the power source being delivered to output mandrel.The gear train sub-assembly
Also comprising the ring gear characterized by cyclic rings main body, the cyclic rings main body had positioned at the inside of cyclic rings main body week
Multiple teeth on side and the surface on the outer periphery relative with the interior periphery of the cyclic rings main body.The ring
Shape gear ring is around a part for the output shaft and the drive end bearing bracket of the adjacent housing.The ring gear is through insert molding
Into the drive end bearing bracket of the housing so that ring gear is limited axial and in rotary moving relative to drive end bearing bracket progress
Both.
Brief description of the drawings
Illustrate concept described in the present invention by way of example rather than in a manner of limitation in the accompanying drawings.Said for diagram
Bright simplification and it is clear for the sake of, illustrated element is not necessarily drawn to scale in each figure.For example, for clarity,
The size of some elements can be expanded relative to other elements.In addition, in the case where thinking fit, repeated among each figure
Reference marker is to indicate corresponding or similar component.
Fig. 1 is the perspective view of illustrative electric tool；
Fig. 2 is the side elevation view of Fig. 1 electric tool；
Fig. 3 is the forward sight elevation of Fig. 1 electric tool；
Fig. 4 is the rear elevation view of Fig. 1 electric tool；
Fig. 5 is the motor unit component of Fig. 1 electric tool, hammers the cross-sectional view of shell and ring gear into shape；
Fig. 6 is the amplified transversal of the interface between the motor unit component, hammer shell and ring gear of Fig. 1 electric tool
Face figure；
Fig. 7 is the motor unit component of Fig. 1 electric tool, hammers the perspective view of shell and ring gear into shape；
Fig. 8 is the motor unit component of Fig. 1 electric tool, hammers the cross section and perspective of shell and ring gear into shape；
Fig. 9 is the top view of another embodiment for the hammer shell and ring gear that can be used together with Fig. 1 electric tool；
Figure 10 is the top view of another embodiment for the hammer shell and ring gear that can be used together with Fig. 1 electric tool；
Figure 11 is the cutting of the still another embodiment for the ring gear alignment characteristicses that can be used together with Fig. 1 electric tool
Side elevation view；
Figure 12 is the cutting side of another embodiment for the ring gear alignment characteristicses that can be used together with Fig. 1 electric tool
Depending on elevation；
Figure 13 is the plan view from above of the ring gear shown in Figure 12；
Figure 14 is the face upwarding view of the ring gear shown in Figure 12；And
Figure 15 is the perspective view of the motor unit component and ring gear shown in Figure 12.
Embodiment
Although idea of the invention is easy to make various modifications and alternative form, the particular exemplary embodiment of the present invention
It is to show and will be described in detail herein in the drawings by way of example.However, it should be understood that it is not intended to the present invention
Concept be limited to disclosed particular form, but belong to all in spirit and scope of the present invention contrary, it is intended to cover
Modification, equivalents and alternative form.
With reference now to Fig. 1 to 4, showing property electric tool 10.Electric tool 10 is illustratively presented as wireless electric
Instrument.In particular, electric tool 10 is shown as pistol grip wireless electric percussion tool in Fig. 1, it is included and work
The straight beater mechanism of output of tool 10.It will be appreciated, however, that in other embodiments, electric tool 10 can be presented as another
The percussion tool of type, for example, wherein instrument 10 output be positioned to beater mechanism be at an angle of (for example, right angle) angle
Percussion tool.It will be appreciated that electric tool 10 can include local source, such as motor (for example, comprising electric motor or gas
Dynamic motor).
Illustrative electric tool 10 includes tool housing 12 and hammer shell 14, as demonstrated in Figure 1.Tool housing 12 defines master
Body 16, bonnet 18 and handle 20.Main body 16 defines inner space 22, and the motor unit component 24 of instrument 10 is positioned at the inside
In space.It will be appreciated that motor unit component 24 can include power source, for example, electric motor (wired or wireless), air or
Other fluid motors.With closed interior space 22 and define relative to the hammer shell 14 of instrument 10 and position when instrument 10 is assembled
Rear end 26 when, bonnet 18 is coupled to main body 16.Bonnet 18 is coupled to main body using fastener 28 (optimal finding in Fig. 4)
16, the fastener extends through bonnet 18 and extended in motor unit component 24 (referring to Fig. 5,7 and 8).
In an illustrative embodiment, the handle 20 of tool housing 12 extends outwardly away from main body 16 and be configured to can be by instrument 10
User grasp.Mains connection 30 is positioned at the end 32 relative with main body 16 of handle 20.Mains connection 30 can through with
Put to be connected to any power supply, for example, battery, motive fluid source or the outlet for being connected to power network.In an illustrative embodiment, it is electric
The power supply 34 of power driven tools 10 is attached to the battery of mains connection 30.
Instrument 10 include several users may be selected input unit, the user may be selected input unit can be presented as through with
Put trigger, switch or the knob of one or more features to allow user to adjust electric tool 10.For example, handle 20 wraps
Containing trigger 36, the trigger be configured to (among other things) in the use of instrument 10 by electric motor 38 (referring to
Fig. 6) ON/OFF.Advance/neutral gear/retroversion (" F/N/R ") switch 40 is positioned in handle 20 close to main body 16 and trigger
36.Among other things, F/N/R switches 40 are configured to control the direction of rotation of motor 38.Control handle 42 is positioned at instrument
On 10 bonnet 18 (as best seen in fig. 4) and be configured to adjust electric tool 10 operator scheme.
Hammer shell 14 is relative with bonnet 18 and is positioned in the main body 16 of tool housing 12.Hammer shell 14, which includes, to be configured to couple
Tool ends end 44 to tool housing 12 and the output end 46 comprising aperture 48, the output mandrel 50 of instrument 10 project through the hole
Mouthful.Hammer shell 14 defines inner space 52, and gear assemblies 54 and beater mechanism (not showing) are housed in the inner space.
In illustrative embodiment, hammer shell 14 is removably coupled to tool housing by one or more fasteners (not showing)
12.In other embodiments, hammer shell 14 can removably be coupled to instrument via other mechanisms (for example, being clasped)
Housing 12.
With reference now to Fig. 5 and 6, motor unit component 24 includes electric motor 38, drive end bearing bracket 56 and rear end cap 58.It is electronic
Motor 38 is illustratively presented as brushless DC electric motor.Electric motor 38 is defeated comprising output shaft 62 is configured to drive
The stationary components (that is, stator) 64 for going out the rotor 60 of mechanical-electric and extending around rotor 60.Output shaft 62 is via gear combination
Part 54 and functionally be coupled to output mandrel 50.
Rear end cap 58 is positioned in inner space 22 to be positioned such that its is fenced in work close to bonnet 18 and drive end bearing bracket 56
In the inner space 22 for having housing 12 and the inner space 52 for hammering shell 14 into shape (as best seen in figure 7).The rotor 60 of motor 38
And stator 64 is positioned between two end caps 56,58.Drive end bearing bracket 56 and rear end cap 58 cooperate to be directed at rotor 60 and stator 64, make
Obtain rotor 60 and stator 64 extends parallel to the central shaft 66 of motor 38.
Illustrative gear assemblies 54 can be presented as or are configured to comprising planetary gearsets, the planetary gearsets by electricity
The rotation of the output shaft 62 of motivation 38 is delivered to the beater mechanism for being housed in hammering the instrument 10 in shell 14 into shape.Gear assemblies 54 include
The ring gear 68 being positioned in the inner space 52 of hammer shell 14.Ring gear 68 is around output shaft 62 and adjacent drive end bearing bracket 56.
Ring gear 68 is formed as cyclic rings, and the cyclic rings have the inner surface 70 comprising multiple gear teeth 72 and are configured to abut
Hammer the outer surface 74 of the inner surface 76 of shell 14 into shape.
With reference now to Fig. 5 to 8, guidance feature 90 is integrated into hammer shell 14, drive end bearing bracket 56 and ring gear 68.Guidance feature
90 be configured to will hammer shell 14, drive end bearing bracket 56 and ring gear 68 it is aligned with each other.Guidance feature 90 is also configured to prevent annular
Gear 68 is rotated relative to motor unit component 24 and hammer shell 14.
In an illustrative embodiment, guidance feature 90 includes one or more grooves being formed in the inner surface 76 of hammer shell 14
92nd, one or more being formed on the outer surface 74 of ring gear 68 correspond to ridges 94 and are formed at the outer surface 98 of drive end bearing bracket 56
On one or more corresponding ridges 96.Each groove 92 is sized to correspond to both ridge 94 and corresponding ridge 96 to receive.Each groove
92 is axially extending along the inner surface 76 of hammer shell 14 from tool ends end 44.In an illustrative embodiment, the size of each ridge 94 with it is every
The size of one corresponding ridge 96 is about the same.Outer surface 74 of each ridge 94 along ring gear 68 and position and each ridge 96 along
The outer surface 98 of drive end bearing bracket 56 and position.In an illustrative embodiment, two groups of ridges 94,96 surround its corresponding construction-annular tooth
The outer surface of wheel 68 and drive end bearing bracket 56 is evenly spaced apart.Hammer shell 14 defines internal diameter, and the internal diameter is sized to match annular
The external diameter of gear 68 and the external diameter of drive end bearing bracket 56.Although instrument 10 is illustratively shown as including four grooves, 92, four ridges 94
And four ridges 96, but will be appreciated that in other embodiments, instrument 10 can include any number groove 92, correspondence ridge 94 and right
Answer ridge 96.
When assembling tool 10, ridge 94 is aligned by user with corresponding ridge 96, by the groove 92 for hammering shell 14 into shape with being aligned now
Ridge 94,96 is aligned, and makes tool ends end 44 of the hammer shell 14 along central shaft 66 towards the axial advancement of tool housing 12 until hammering shell 14 into shape
Untill contacting tool housing 12.As hammer shell 14 advances along central shaft 66, groove 92 crosses ridge 94 and then over ridge first
96。
Guidance feature 90 is configured to relative to drive end bearing bracket 56 and stationary annular gear 68 so that ring gear 68 can not phase
Rotated for motor unit component 24.The groove 92 of hammer shell 14 defines ledge surface 100, and the ledge surface is configured to
When hammering shell 14 into shape and being fastened firmly to tool housing 12 ring gear 68 is clamped against drive end bearing bracket 56.
In the design of some prior arts, ring gear 68 is directly coupled to drive end bearing bracket 56.In an illustrative embodiment, ring
Shape gear 68 is fixed relative to the position of drive end bearing bracket 56 alternatively by the guidance feature 90 of hammer shell 14.For example, shell is hammered into shape
14 are oriented to by drive end bearing bracket 56, and hammer shell 14 into shape and ring gear 68 is oriented to.This embodiment is by removing ring gear 68
Connector between drive end bearing bracket 56 and reduce the number of parts of instrument 10 and the length of instrument 10 can be reduced.
As described above, guidance feature 90 can include any number groove 92 and ridge 94,96.For example, Fig. 7 and 8
Illustrative guidance feature 90 include around hammer shell 14 inner surface 76 be evenly spaced apart (referring to Fig. 6) four grooves 92,
Four corresponding ridges 94 being evenly spaced apart (referring to Fig. 6) around the outer surface 74 of ring gear 68 and around drive end bearing bracket 56
Four corresponding ridges 96 that outer surface 98 is evenly spaced apart.Each groove 92 is configured to and both pairings of ridge 94 and ridge 96.
In another illustrative example demonstrated in Figure 9, guidance feature 102 includes three grooves 104 being formed in hammer shell 14, wherein
Three corresponding ridges 106 are formed in ring gear 68 and three corresponding ridges are formed in drive end bearing bracket 56 (not showing).In Fig. 10
In another illustrative example shown, guidance feature 108 includes six grooves 110 being formed in hammer shell 14, six of which
Corresponding ridge 112 is formed in ring gear 68 and six corresponding ridges are formed in drive end bearing bracket 56 (not showing).
Although be directed to herein feature 90,102,108 illustrate and be described as comprising be formed at hammer shell 14 in
Groove 92,104,110 and the ridge 94,96,106,112 that is formed on ring gear 68 and drive end bearing bracket 56, it is anticipated that in electricity
In the other embodiments of power driven tools 10, guidance feature 90,102,108 can take other forms.By illustrative example mode, lead
It is alternately recessed comprising the ridge being formed on hammer shell 14 and the correspondence being formed in ring gear 68 and drive end bearing bracket 56 to feature
Groove.
With reference to figure 11, another embodiment of the alignment characteristicses 200 of the ring gear 268 of displaying electric tool 10.Say herein
In bright property embodiment, drive end bearing bracket 256 is configured to surround ring gear 268, and whereby relative to the motor of electric tool 10
Sub-assembly 24 and be aligned and stationary annular gear 268.In addition, hammer shell 214 is configured to be operatively coupled to tool housing 12, preceding
End cap 256 and ring gear 268.Drive end bearing bracket 256 includes the collar flange 202 being formed in the front end 204 of drive end bearing bracket 256.Ring
Shape flange 202, which includes, is configured to be formed the inner surface 206 of chamber 208, and the chamber is sized to receive the one of ring gear 268
Part.Inner surface 206 is operatively coupled to the outer of ring gear 268 when ring gear 268 is assembled in electric tool 10
Surface 210.Drive end bearing bracket 256 is configured to stationary annular gear 268 and prevents annular during the normal operating of electric tool 10
Gear 268 is rotated.
In this embodiment of alignment characteristicses 200, hammer shell 214 is configured to be fixed to the outer surface of tool housing 12
210.Hammer shell 214 includes casing ledge 212 and the gear assemblies surface 216 being formed in the motor terminal 218 of hammer shell 214.
Casing ledge 212 is configured to be operatively coupled to the outer surface 210 of tool housing 12, and hammer shell 214 is fixed into work whereby
Has housing 12.Gear assemblies surface 216 is configured to abut the collar flange 202 and gear assemblies 54 of drive end bearing bracket 256
Ring gear 268 (referring further to Fig. 5).By so doing, hammer shell 214 is cooperated with drive end bearing bracket 256 so that ring gear 268 to be fixed to
Electric tool 10.
With reference to figure 12, another embodiment of the alignment characteristicses 300 of the ring gear 368 of displaying electric tool 10.Annular tooth
Wheel alignment characteristicses 300 are configured to for ring gear 368 to be directed at (referring to Figure 11) with motor unit component 24 and allow electronic work
Tool 10 rightly works.In this embodiment of alignment characteristicses 300, ring gear 368, which is embedded into, is molded into motor combination
The drive end bearing bracket 356 of part 24.
Also shown in fig. 12, hammer shell 314 is operatively coupled to ring gear 368, drive end bearing bracket 356 and tool housing 12
And it is configured to the inner space 22 of sealing electric instrument 10.In an illustrative embodiment, hammer shell 314, which includes, is attached to its nose
Lug 302.Hammer shell 314 includes tapered segment 304 and the flange 306 being formed in the tool ends end 44 of hammer shell 314.Hammer shell 314 into shape
Tapered segment 304 is configured to be operatively coupled to the inner surface 310 of tool housing 12.Flange 306 is configured to operatively coupling
Close the outer surface 322,328 of ring gear 368.
As demonstrated in Figure 13, ring gear 368 is formed as cyclic rings, and the cyclic rings are included with formed therein
The inner ring surface 318 of multiple teeth 320 and the outer surface 322 with one or more fastener guide holes 324 formed therein.Ring
Shape gear 368 is extended between motor terminal 326 and another opposite end.Lip 330 is formed at the motor of ring gear 368
In end 326, so as to cause motor terminal 326 to define motor terminal opening 332, the motor terminal opening has than being defined in ring
The small diameter of opposite end openings 334 in the opposite end of shape gear 368.Lip 330 be configured to cooperate with drive end bearing bracket 356 with
Ring gear 368 is fixed to motor unit component 24 (referring further to Figure 11 and 12).In an illustrative embodiment, by by annular
Gear 368, which is directly embedded into, to be molded into drive end bearing bracket 356 and ring gear 368 is fixed into motor unit component 24.
As demonstrated in Figure 14, one or more grooves 336 are formed in the motor terminal 326 of ring gear 368 and through matching somebody with somebody
Put so that ring gear 368 is fixed into drive end bearing bracket 356.During insert molding technique, thermoplastic materials enters in groove 336.Moulding
After material cooling, groove 336 is cooperated with the plastics of drive end bearing bracket 356 so that ring gear 368 is fixed into drive end bearing bracket 356 so that ring
Shape gear 368 can not be rotated relative to drive end bearing bracket 356.It is expected that in other embodiments, groove 336 can by with drive end bearing bracket
356 cooperate to resist relative to the rotation of drive end bearing bracket 356 and other raised or recessed features replacements of stationary annular gear 368.
As shown in Figure 15, drive end bearing bracket 356 includes sized to receive the outer main body 338 of ring gear 368.Outer master
Body 338 is configured to be operatively coupled to the outer surface 322 of ring gear 368 (referring to Figure 13 and 14).One or more fasteners
Guide hole 340 is formed in outer main body 338.When assembled, the fastener guide hole 340 of drive end bearing bracket 356 be configured to
The corresponding fastener guide hole 324 being formed in ring gear 368 is aligned.Fastener guide hole 324,340 (is not opened up with fastener
Show) cooperate so that motor unit component 24 and gear assemblies 54 are fixed in tool housing 12.When by fastener guide hole
324th, during 340 alignment, fastener can be received by motor unit component 24 and by hammer shell 314.
Drive end bearing bracket 356 also includes interior main body 342, and the interior main body is configured to and the phase of the lip of ring gear 368 330
Interaction and ring gear 368 is fixed to drive end bearing bracket 356.During insert molding technique, the plastics of drive end bearing bracket 356 surround lip
Shape thing 330 is formed, and ring gear 368 is engaged into drive end bearing bracket 356 whereby.In an illustrative embodiment, by the way that thermoplasticity is moulded
Material, which is injected into, to be wherein placed with the mould of ring gear 368 and has realized insert molding technique.Thermoplastic is finally hardened
And drive end bearing bracket 356 is formed whereby.
Such as optimal finding in Figure 12 to 15, the interior main body 342 of drive end bearing bracket 356 is also configured to the beater mechanism to instrument 10
370 camshaft 372 is oriented to.As shown in Figure 12, camshaft 372 is located at camshaft through being integrally formed to include
Planetary gear retaining piece at 372 distal end 374.The interior main body 342 of drive end bearing bracket 356 is formed to include recessed annular surface
344, the distal end 374 of the female annular surface engagement with cams axle 372 when instrument 10 is assembled.The interior main body of drive end bearing bracket 356
342 be also formed to comprising extend outwardly away from recessed annular surface 344 wall 346 (wall 346 also formed in main body 342 a part,
The part is engaged and keeps the lip 300 of ring gear 368, as described above).Such as optimal finding in Figure 12, work as work
When tool 10 is assembled, the internal diameter of wall 346 surround a part for the external diameter of the distal end 374 of camshaft 372 so that drive end bearing bracket 356 is right
Camshaft 372 is oriented to.This configuration eliminates the independent bearing and/or additional set to the distal end 374 to supporting cam wheel axle 372
The needs of part, reduce the complexity and overall length of instrument 10 whereby.
Although each figure and it is described above in particular illustrative embodiment has been described in detail, this illustrate and describe should
It is substantially exemplary and nonrestrictive for being considered as, it should be appreciated that has shown that and describes only illustrative embodiment and it is expected to protect category
In all changes in the spirit of the present invention and modification.The present invention is present from equipment described herein, system and side
Multiple advantages that the various features of method are drawn.It should be noted that the equipment of the present invention, the alternate embodiment of system and method can not include
Described all features, but the advantages of still benefit from such feature at least some advantages.Those skilled in the art
It can be easy to dream up equipment, the embodiment party of system and method for one or more of the feature for incorporating the present invention of their own
Case.
Claims (20)
1. a kind of hand held electric tool, it includes：
Housing, it supports power source；
Wherein described housing includes drive end bearing bracket；
Output shaft, the output end at its described drive end bearing bracket from the housing protrude；
Wherein described output shaft is functionally coupled to the power source so that the output shaft is supplied electricity in the power source
Rotated during power in response to the activation of the power source；
Procapsid, it defines inner space；
Wherein described output shaft is located in the inner space of the procapsid；
Gear train sub-assembly, it is located in the inner space of the procapsid；
Wherein described gear train sub-assembly is configured to rotation being delivered to output mandrel from the power source；
Wherein described gear train sub-assembly includes the ring gear characterized by cyclic rings main body, and the cyclic rings main body, which has, to be located at
Multiple teeth on the interior periphery of the cyclic rings main body and positioned at the relative with the interior periphery of the cyclic rings main body
Surface on outer periphery；
Wherein described ring gear is around a part for the output shaft and the drive end bearing bracket of the adjacent housing；
The interior surface of procapsid described in the surface contiguous of the outer periphery of wherein described ring gear；
First group of guidance feature, it is located at the outside week of the interior surface of the procapsid and the ring gear
On the surface on side；
Wherein described first group of guidance feature is configured to prevent the ring gear relative to the power source and the fore shell
Body moves；And
Second group of guidance feature, it is located on the end cap of the procapsid and the housing；
Wherein described second group of guidance feature is configured to prevent the procapsid from moving relative to the housing.
2. hand held electric tool according to claim 1, wherein the procapsid is hammer shell.
3. hand held electric tool according to claim 2, wherein beater mechanism are supported in the hammer shell.
4. hand held electric tool according to claim 1, wherein the procapsid is attached to the shell using fastener
Body.
5. hand held electric tool according to claim 1, wherein the gear train sub-assembly includes planetary gearsets.
6. hand held electric tool according to claim 1, wherein first group of guidance feature further comprises being formed
One or more grooves in the interior surface of the procapsid, and it is formed at the cyclic rings master of the ring gear
One or more corresponding ridges on the surface of the outer periphery of body, wherein one or more described grooves are configured to receive
One or more described corresponding ridges are to prevent from being moved between the procapsid and the ring gear.
7. hand held electric tool according to claim 1, wherein first group of guidance feature further comprises being formed
One or more grooves in the surface of the outer periphery of the cyclic rings main body of the ring gear, and formed
In one or more corresponding ridges in the interior surface of the procapsid, wherein one or more described grooves are configured to receive
One or more described corresponding ridges are to prevent from being moved between the procapsid and the ring gear.
8. hand held electric tool according to claim 6, wherein second group of guidance feature further comprises being formed
In one or more corresponding ridges on the outer surface of the drive end bearing bracket of the housing, wherein the procapsid it is described one or more
The outer periphery of each sized cyclic rings main body that the ring gear is formed at receiving in groove
The surface on corresponding ridge and both one or more described corresponding ridges for being formed on the outer surface of the drive end bearing bracket, wherein
Each in one or more described grooves is axially extending along the interior surface of the procapsid.
9. hand held electric tool according to claim 8, wherein being formed at the cyclic rings master of the ring gear
The size of each of one or more chi chungs on the surface of the outer periphery of body is substantially similar to be formed
The size of each of one or more corresponding chi chungs described on the outer surface of the drive end bearing bracket.
10. hand held electric tool according to claim 1, wherein the interior surface of the procapsid define it is described
The internal diameter of the neighboring and the external diameter of the drive end bearing bracket of the ring main body of ring gear.
11. hand held electric tool according to claim 9, wherein one or more described grooves and shape of the procapsid
One or more described ridges on the surface of the outer periphery of the cyclic rings main body of ring gear described in Cheng Yu and
One or more the described corresponding ridges being formed on the outer surface are aligned so that the procapsid is along central shaft towards the shell
Body axial advancement is to be engaged and fixed to the housing.
12. hand held electric tool according to claim 11, wherein one or more described groove bags of the procapsid
Containing ledge surface, the ledge surface is configured to when the procapsid is fixed to the housing 12 against the drive end bearing bracket
And clamp the ring gear.
13. hand held electric tool according to claim 1, wherein first group of guidance feature further comprises being formed
In one on the surface of one or more ridges on the procapsid and the neighboring for being formed at the ring gear or
Multiple respective slots, and one or more described respective slots are formed on the drive end bearing bracket.
14. hand held electric tool according to claim 13, wherein the drive end bearing bracket is configured to around the annular
At least a portion of gear relative to the power source to be aligned and fix the ring gear, wherein the procapsid is through matching somebody with somebody
Put so that the housing 12, the drive end bearing bracket and the ring gear to be operatively coupled together.
15. hand held electric tool according to claim 14, wherein the drive end bearing bracket, which includes, is formed at the drive end bearing bracket
Front end in collar flange, wherein the collar flange, which includes, is configured to be formed the inner surface of chamber, the chamber is sized
To receive a part for the ring gear.
16. hand held electric tool according to claim 15, wherein the collar flange of the end cap is described interior
Surface is operatively coupled to the outer surface of the ring gear in the ring gear to prevent the ring gear normal
Rotated during operation.
17. hand held electric tool according to claim 16, wherein the procapsid be configured to be fixed to it is described
The outer surface of housing, wherein the procapsid includes casing ledge and gear assemblies surface, wherein the casing ledge is through matching somebody with somebody
Put to be operatively coupled to the outer surface of the housing so that the procapsid is fixed into tool housing, and wherein described tooth
Wheel sub-assembly surface is configured to abut the collar flange of the drive end bearing bracket and the ring gear, therefore the fore shell
Body is cooperated with the drive end bearing bracket to hold the ring gear.
18. hand held electric tool according to claim 1, wherein first group of guidance feature arrives comprising insert molding
The ring gear of the drive end bearing bracket, wherein the procapsid is operatively coupled to the ring gear, the drive end bearing bracket, and
Wherein described procapsid includes the snout part being located at the neighbouring output mandrel.
19. a kind of hand held electric tool, it includes：
Housing, it supports power source；
Wherein described housing includes drive end bearing bracket；
Output shaft, the output end at its described drive end bearing bracket from the housing protrude；
Wherein described output shaft is functionally coupled to the power source so that the output shaft is supplied electricity in the power source
Rotated during power in response to the activation of the power source；
Procapsid, it defines inner space；
Wherein described output shaft is located in the inner space of the procapsid；And
Gear train sub-assembly, it is located in the inner space of the procapsid；
Wherein described gear train sub-assembly is configured to rotation being delivered to output mandrel from the power source；
Wherein described gear train sub-assembly includes the ring gear characterized by cyclic rings main body, and the cyclic rings main body, which has, to be located at
Multiple teeth on the interior periphery of the cyclic rings main body and positioned at the relative with the interior periphery of the cyclic rings main body
Surface on outer periphery；
Wherein described ring gear is around a part for the output shaft and the drive end bearing bracket of the adjacent housing；And
Wherein described procapsid and the ring gear include one or more guidance features, in one or more described guidance features
Each is configured to match the procapsid and the ring gear.
20. a kind of hand held electric tool, it includes：
Housing, it supports power source；
Wherein described housing includes drive end bearing bracket；
Output shaft, the output end at its described drive end bearing bracket from the housing protrude；
Wherein described output shaft is functionally coupled to the power source so that the output shaft is supplied electricity in the power source
Rotated during power in response to the activation of the power source；
Procapsid, it defines inner space；
Wherein described output shaft is located in the inner space of the procapsid；And
Gear train sub-assembly, it is located in the inner space of the procapsid；
Wherein described gear train sub-assembly is configured to rotation being delivered to output mandrel from the power source；
Wherein described gear train sub-assembly includes the ring gear characterized by cyclic rings main body, and the cyclic rings main body, which has, to be located at
Multiple teeth on the interior periphery of the cyclic rings main body and positioned at the relative with the interior periphery of the cyclic rings main body
Surface on outer periphery；
Wherein described ring gear is around a part for the output shaft and the drive end bearing bracket of the adjacent housing；And
In the drive end bearing bracket of the wherein described ring gear through insert molding to the housing so that ring gear is relative by limitation
Carried out in the drive end bearing bracket both axial and in rotary moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011120909.2A CN112276871A (en) | 2015-06-05 | 2016-06-03 | Hand-held electric tool and method for producing same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562171741P | 2015-06-05 | 2015-06-05 | |
| US62/171,741 | 2015-06-05 | ||
| PCT/US2016/035797 WO2016196979A1 (en) | 2015-06-05 | 2016-06-03 | Impact tools with ring gear alignment features |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011120909.2A Division CN112276871A (en) | 2015-06-05 | 2016-06-03 | Hand-held electric tool and method for producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107614204A true CN107614204A (en) | 2018-01-19 |
| CN107614204B CN107614204B (en) | 2020-11-06 |
Family
ID=61059721
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680031488.1A Active CN107614204B (en) | 2015-06-05 | 2016-06-03 | Impact tool with ring gear alignment feature |
| CN202011120909.2A Pending CN112276871A (en) | 2015-06-05 | 2016-06-03 | Hand-held electric tool and method for producing same |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011120909.2A Pending CN112276871A (en) | 2015-06-05 | 2016-06-03 | Hand-held electric tool and method for producing same |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP3819083B1 (en) |
| CN (2) | CN107614204B (en) |
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| US4284109A (en) * | 1979-10-19 | 1981-08-18 | Cooper Industries, Inc. | Electric conductor wrapping tool |
| US20050183870A1 (en) * | 2004-02-23 | 2005-08-25 | Ryobi Ltd. | Electric power tool |
| US20080032848A1 (en) * | 2006-08-01 | 2008-02-07 | Eastway Fair Company Limited | Variable speed transmission for a power tool |
| US20110127059A1 (en) * | 2008-08-06 | 2011-06-02 | Kurt Limberg | Precision torque tool |
| EP2184138A3 (en) * | 2008-11-08 | 2011-12-07 | Black & Decker Inc. | Multi-speed power tool transmission with alternative ring gear configuration |
| TW201231843A (en) * | 2011-01-17 | 2012-08-01 | Nidec Shimpo Corp | Transmission box |
| US20130075121A1 (en) * | 2010-03-08 | 2013-03-28 | Hitachi Koki Co., Ltd. | Impact tool |
| DE102012211914A1 (en) * | 2012-04-05 | 2013-10-10 | Robert Bosch Gmbh | Hand tool with a planetary gear |
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| TW572152U (en) * | 2002-11-08 | 2004-01-11 | Power Network Industry Co Ltd | Three-stage gearshift mechanism |
| US7604528B2 (en) * | 2008-02-28 | 2009-10-20 | Techway Industrial Co., Ltd. | Electric grinding gun |
| US8317350B2 (en) * | 2009-02-25 | 2012-11-27 | Black & Decker Inc. | Power tool with a light for illuminating a workpiece |
| JP5357840B2 (en) * | 2010-07-06 | 2013-12-04 | パナソニック株式会社 | Electric tool |
| DE102011055869A1 (en) * | 2011-11-30 | 2013-06-06 | Röhm Gmbh | drilling |
| DE102012213723B4 (en) * | 2012-03-26 | 2023-11-02 | Robert Bosch Gmbh | Gear shifting device for a switchable transmission of a machine tool |
| CN204334195U (en) * | 2015-01-08 | 2015-05-13 | 张志雄 | A kind of disc type gear motor |
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2016
- 2016-06-03 EP EP20194822.1A patent/EP3819083B1/en active Active
- 2016-06-03 CN CN201680031488.1A patent/CN107614204B/en active Active
- 2016-06-03 CN CN202011120909.2A patent/CN112276871A/en active Pending
- 2016-06-03 EP EP16804550.8A patent/EP3302881B1/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4284109A (en) * | 1979-10-19 | 1981-08-18 | Cooper Industries, Inc. | Electric conductor wrapping tool |
| US20050183870A1 (en) * | 2004-02-23 | 2005-08-25 | Ryobi Ltd. | Electric power tool |
| US20080032848A1 (en) * | 2006-08-01 | 2008-02-07 | Eastway Fair Company Limited | Variable speed transmission for a power tool |
| US20110127059A1 (en) * | 2008-08-06 | 2011-06-02 | Kurt Limberg | Precision torque tool |
| EP2184138A3 (en) * | 2008-11-08 | 2011-12-07 | Black & Decker Inc. | Multi-speed power tool transmission with alternative ring gear configuration |
| US20130075121A1 (en) * | 2010-03-08 | 2013-03-28 | Hitachi Koki Co., Ltd. | Impact tool |
| TW201231843A (en) * | 2011-01-17 | 2012-08-01 | Nidec Shimpo Corp | Transmission box |
| DE102012211914A1 (en) * | 2012-04-05 | 2013-10-10 | Robert Bosch Gmbh | Hand tool with a planetary gear |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3819083A1 (en) | 2021-05-12 |
| CN107614204B (en) | 2020-11-06 |
| CN112276871A (en) | 2021-01-29 |
| EP3302881A4 (en) | 2019-01-23 |
| EP3302881A1 (en) | 2018-04-11 |
| EP3819083B1 (en) | 2023-05-24 |
| EP3302881B1 (en) | 2020-09-23 |
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