CN103702802A - Twist lock gear case for power tools - Google Patents
Twist lock gear case for power tools Download PDFInfo
- Publication number
- CN103702802A CN103702802A CN201280016156.8A CN201280016156A CN103702802A CN 103702802 A CN103702802 A CN 103702802A CN 201280016156 A CN201280016156 A CN 201280016156A CN 103702802 A CN103702802 A CN 103702802A
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- China
- Prior art keywords
- gear cover
- locking element
- motor
- motor rack
- electric tool
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- 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
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- 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
- B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
- B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Surgical Instruments (AREA)
Abstract
A power tool includes a motor having an outwardly extending rotor that defines a drive axis, a housing surrounding the motor, and a gearcase that includes a drive train coupled to the rotor and configured to drive a tool output. The gearcase includes a proximal end and an opposite distal end that is exposed to the outside of the tool forward of the housing. The gearcase includes respective locking elements spaced around the periphery of the gearcase proximal end. A motor mount includes spaced apart locking elements that are configured to engage with respective gearcase locking elements. The proximal end portion of the gearcase is adapted to make contact with the motor mount between the locking elements and then rotate such that the gearcase locking elements engage the motor mount locking elements.
Description
Related application
The application requires the U.S. Provisional Patent Application No.61/512 submitting on July 27th, 2011, priority and the rights and interests of the PCT application that the sequence number of submitting on March 31st, 183 and 2011 is PCT/US2011/030646, introduce its full content herein by reference.
Technical field
The present invention relates to electric tool, be specially adapted to the electric tool without electric wire.
Prior art
For example the electric tool of drill bit, nut runner and screwdriver generally includes the shell of support motor, by motor-driven transmission system, has the output shaft that is suitable for the first end of engaged with fastener and is suitable for the second end of engaged transmission system.The transmission system of the electric tool of these types need to keep concentric by output shaft and motor, to avoid geared system misalignment and excessive grating of gears.
Summary of the invention
Thereby it should be understood that and provide content of the present invention with simple form, to introduce the selection of concept, these concepts will be further described below in specific embodiment.Content of the present invention had both been not intended to determine key feature of the present disclosure or inner characteristic, was also not intended to limit the scope of the invention.
According to some embodiments of the present invention, electric tool comprises motor, and motor has the outward extending rotor that limits driving axis; Surround the shell of motor; And encapsulation is connected to rotor and is arranged to the gear cover of the transmission system of driven tool output.Gear cover comprises near-end and the relative far-end that is exposed to the instrument outside of shell front portion.In some embodiments of the invention, gear cover has enough rigidity to support assist handle.The motor rack arranging in the enclosure comprises the first relative side and the second side.Motor is fixed on the first side of motor rack, and gear cover is fixed on the second side of motor rack, so that transmission system is aimed at one heart with rotor.
Gear cover comprises the isolated corresponding locking element of periphery around gear cover near-end.In some embodiments of the invention, each locking element extends and has a conical configuration from gear cover outward radial.Motor rack comprises the locking element that interval separates in the second side being arranged to corresponding gear cover locking element engagement.In some embodiments of the invention, each motor rack locking element comprises arc groove, and it holds corresponding gear cover locking member slidably.The proximal part of gear cover is suitable for contacting with motor rack the second side, then rotates so that gear cover locking element slidably mates motor rack locking element.
According to some embodiments of the present invention, for the gear cover of electric tool, comprise thering is first end that relative longitudinal separation separates and the elongated enclosure of the second end.Shell is arranged to the transmission system of packaged battery power driven tools.First end has opening, and opening is arranged to the rotor holding from the motor of electric tool, and rotor is connected with transmission system, and the second end has opening, and the output shaft of electric tool can extend through this opening.At shell first end place, a plurality of locking elements are spaced from each other along peripheral direction, and can with electric tool motor frame on corresponding locking element slidably mate, gear cover is fixed on motor rack.In some embodiments of the invention, gear cover locking element outwards extends axially from the periphery of the first end of shell.In some embodiments of the invention, gear cover locking element has the conical configuration causing with the interference fit of motor rack locking element.
In some embodiments of the invention, the first end of gear cover shell comprises that it is configured to be fixed to the shell of electric tool from its outward extending a pair of assembling lug.In some embodiments of the invention, flange stretches out and around the outer surface of gear cover shell from the outer surface of gear cover shell, and is configured to mesh the interior section of electric power tool shell.
According to some embodiments of the present invention, for the motor rack of electric tool, comprise the base with relative the first side and the second side.Base the first side is configured to be attached to the motor of electric tool, and second of base is configured to be attached to the gear cover of the transmission system of packaged battery power driven tools.Opening extends through base between the first side and the second side, and is configured to hold the rotor being connected with transmission system through it.A plurality of locking elements are positioned at base the second side place, and it is configured to gear cover to be fixed to base.Locking element is spaced from each other and can with respect to rotatablely moving of motor rack, be meshed with corresponding gear cover locking element by gear cover.In some embodiments of the invention, each motor rack locking element comprises arc groove, and arc groove is configured to hold slidably therein corresponding gear cover locking element.
Be noted that the each aspect of the present invention of describing with respect to an embodiment can be incorporated in different embodiment, although specifically do not describe with respect to it.That is to say, each feature of all embodiment and/or any embodiment can be by any way and/or the form combination of combination.Correspondingly; applicant retains the right of revising any Original submission claim or submitting any new claim to; comprise and any Original submission claim can be modified as to the right that is subordinated to any other claim and/or is combined with any feature structure of any other claim, although the former beginning and end are claimed by that way.These and other objects of the present invention and/or other aspects are elaborated below.
Accompanying drawing explanation
The accompanying drawing that forms a description part illustrates some exemplary embodiments.Accompanying drawing is used for absolutely proving exemplary embodiment together with describing.
Fig. 1 is the exemplary side perspective view without electric wire electric tool according to some embodiments of the present invention.
Fig. 2 is the exploded view of the instrument that shows of Fig. 1.
Fig. 3 is according to the side cross-sectional view of the electric tool of Fig. 1 demonstration of some embodiments of the present invention.
Fig. 4 is according to the top cross section view of a part for the electric tool of Fig. 1 demonstration of some embodiments of the present invention.
Fig. 5 is the side perspective view of a part for the chlamydate instrument that shows according to Fig. 1 of some embodiments of the present invention, and shell is the transparent gear cover that is fixed to motor rack with diagram.
Fig. 6 is the part front perspective view of the instrument that shows of Fig. 5, has saved a part of shell in figure.
Fig. 7 A is the gear cover of instrument and the decomposition diagram of motor rack that Fig. 5 shows.
Fig. 7 B illustrate by with respect to motor rack rotary teeth wheel cover with before gear cover is fixed to motor rack, the gear cover of Fig. 7 A and motor rack are in contact relation.
Fig. 7 C illustrates at the gear cover that turns clockwise with respect to motor rack so that after gear cover is fixed to motor rack, the gear cover of Fig. 7 B and motor rack.
Fig. 8 is according to enlarged cross-sectional view some embodiments of the present invention and a gear cover locking element corresponding motor rack locking element engagement.
Fig. 9 A is the top rear perspective view according to the instrument of Fig. 1 of some embodiments of the present invention, and wherein assist handle is removably with determining to gear cover.
Fig. 9 B is the top face perspective view of the instrument of Fig. 9 A.
Figure 10 be according to some embodiments of the present invention for as the front perspective view of the gear cover without electric wire electric tool of the instrument of Fig. 1.
Figure 11 is the rear view of the gear cover of Figure 10.
Figure 12 A is the side view of the gear cover of Figure 10.
Figure 12 B is the side view of the gear cover 90-degree rotation of Figure 10.
Figure 12 C is the end-view above of the gear cover along line 12C-12C intercepting of Figure 12 B.
Figure 13 is according to the cutaway side sectional view of the amplification of the electric power tool shell part of Fig. 1 of some embodiments of the present invention, and its gear cover flange illustrating in Figure 10 can mesh a part of shell wherein ordinatedly.
Figure 14 is according to the side view of the gear cover of Figure 10 of some embodiments of the present invention, and gear cover is positioned at the housing parts of the electric tool of Fig. 1.
Figure 15 is according to the front perspective view of the gear cover of Figure 10 of some embodiments of the present invention, and gear cover is arranged in the housing parts of Fig. 1 electric tool.
The specific embodiment
Now will with reference to accompanying drawing, the present invention be described more fully hereinafter, wherein show embodiments of the invention.Yet the present invention can embody with multiple different form, and should not be interpreted as the embodiment that is only limited in this statement.Identical numeral is indicated identical part from start to finish.In the accompanying drawings, for clarity sake, some parts or feature may be exaggerated, and except as otherwise noted, dotted line can illustrate optional feature or element.In addition, unless otherwise specified, the order that order of operation (or step) is not limited in figure and/or presents in claim.Although there is no specific description or show like this, the feature of describing with respect to a figure or embodiment can be associated with another embodiment of figure.
Be understandable that, parts or element be known as " " another parts or element " above ", can directly at another parts or above element or also, can there is intermediate member and/or element in it.On the contrary, when parts or element be known as " directly " an another parts or element " above " time, there is not intermediate member or element.It will also be appreciated that, when parts or element are known as " being connected to ", " being attached to " or " being connected in " another parts or element, can be to be connected directly to, to be attached to or be connected in another parts or element, or may have intermediate member or element.On the contrary, when parts or element are known as " being connected directly to ", " being directly attached to " or " being directly connected in " another parts or element, there is not intermediate member or element.Although illustrate or illustrate with respect to an embodiment, the parts that illustrate like this or illustrate and element can be applied to other embodiment.
Term used herein is only in order to describe specific embodiment, and is not intended to limit the present invention.In as used herein, unless context clearly separately has indication, singulative " ", " one " and " this " intention also comprise plural form.Need to further understand that, when word " comprises " and/or " comprising " uses in this manual, specifically refer to the existence of described parts, step, operation, element and/or member, but do not get rid of, do not exist or additional one or more other parts, step, operation, element, element and/or its group.As used herein, word "and/or" comprises the combination of any and all one or more relevant projects of listing, and can be abbreviated as "/".
For ease of describing, can be for example using herein " ... under ", " ... below ", " below ", " ... on ", " above " wait the relative word in space with the description relation of element or parts and another (a plurality of) element or parts as shown in drawings.Be understandable that, space relative term meaning of one's words figure comprises the different azimuth of the device in use or comprise the mode of operation the orientation of describing in diagram.For example, if the device in diagram is inverted, be described in so other elements or parts " under " or the element of " below " be positioned at other elements or parts " on ".Therefore, exemplary word " ... under " can comprise Liang Zhong orientation, above and below.Device can be by location (90-degree rotation or with other orientation) otherwise, and in literary composition, the relative descriptor in space used can correspondingly be explained.Similarly, unless expressly stated otherwise,, the word using in literary composition " up ", " down ", " vertically ", " level " etc. the object for illustrating only.
Be understandable that, although word first and second is used to describe various parts or element in the text, these parts or element should not limited by these two a little words.These words are just for separating parts or element with another parts or element region.Therefore, first component discussed below or element can be called as second component or element, and similarly, second component discussed below or element can be called as first component or element, and do not depart from instruction of the present invention.
Unless otherwise defined, all words used herein (comprising technology and scientific terminology) have with the present invention under the identical implication conventionally understood of the ordinary skill high-ranking official of technical field.It will also be appreciated that, such as defined those words of common dictionary, should be interpreted as having with them in the context of this description and the consistent implication of the implication in association area, and should not be interpreted as the Utopian or too formal meaning, unless clear and definite such definition in this article.For simplicity and/or clear, well-known institute can or structure can not be elaborated.
The electric tool of term " without electric wire " refers to does not need plug-in source, hardwire to be electrically connected to external power source with the electric tool of operating item.Or rather, without electric wire electric tool, there is the battery motor that for example rechargeable battery is powered by loading.A set of battery can be applicable to a set of without electric wire electric tool.Different can have different electric current demand distribution maps without electric wire electric tool, and its utilization provides the battery of the voltage and current capacity of OK range to operate more efficiently.The different electric tools without electric wire (such as powered battery) can comprise such as drill bit, screwdriver, ratchet mechanism, nut runner, percussion tool etc.
Embodiments of the invention can be specially adapted to electric precise instrument, and these instruments can be used to expectation and control more accurately the application of the output of using.
Fig. 1 and Fig. 2 illustrate the electric tool 10 according to some embodiments of the present invention.Electric tool 10 comprises shell 12, motor 14, gear cover 16 and instrument output shaft 18.As shown in the figure, shell 12 encapsulated motors 14, and part is around gear cover 16.As shown in Figure 5 and Figure 6, the distal portions 16a of gear cover 16 has conical configuration, and is exposed to the outside of the instrument in shell 12 the place aheads.Gear cover 16 encapsulation transmission systems 20 (Fig. 3,4).The bottom of shell 12 can engage battery 120 (shown in Fig. 1 dotted line) releasedly.Shell 12 can comprise external control, such as trigger 11 and the UI (user interface) 19 with display 19d (Fig. 9 A).
As shown in Figure 2 and Figure 4, in using the shell 12 of motor rack 50, motor 14 can be fixed on fixed position and the orientation of expectation.As Fig. 4 is said, show, motor rack 50 comprises the base 50b with the first and second relative sides 52,54.By extending through the securing member 14f such as screw, bolt, threaded rod of corresponding passage 50p (Fig. 4,7A) in motor rack base 50b, motor 14 is attached to motor rack the first side 52.
About Fig. 7 A-7C, gear cover 16 comprises having relative longitudinally-spaced distal portions 16a and the elongated enclosure 16h of proximal part 16b.As mentioned above, gear cover shell 16h is configured to the transmission system of packaged battery power driven tools 10.Proximal part 16b has opening 21, and it is configured to hold the rotor 22 (Fig. 3) from the motor 14 of electric tool 10, and rotor is connected (Fig. 3) with transmission system 20.The output shaft 18 that distal portions 16a has an electric tool 10 extends through its opening 23.By also gearing motor frame locking element 55 is to form the gear cover locking element 17 of single transmission system of combining slidably with 55 cooperations of motor rack locking element, gear cover shell 16h is mounted to the second side 54 of motor rack 50 rigidly.As described below, gear cover 16 can turn to be fixed to ordinatedly the second side 54 of motor rack 50.Gear cover 16 (and transmission system 20 of encapsulation) can limit with motor rack 50 and motor 14 or forming section motor component assembling 100 (Fig. 2), it can be placed in outer enclosure 12, as shown in Figure 2, outer enclosure 12 can be provided as two parts 12 that can coordinate
1, 12
2.The housing parts 12 that can coordinate in certain embodiments,
1, 12
2substantially be symmetrical.
About Fig. 3 and Fig. 4, motor 14 comprises rotor 22 (for example motor output shaft), its opening 53 in instrument output shaft 18 extends through motor rack 50, and there is the center line that overlaps with transmission system central axis 24.Rotor 22 is attached to the pinion 25 with a plurality of teeth groove or tooth 26.Rotor 22 drives the pinion 25 with transmission system 20 engagements, thus the output shaft of its driven tool 18.
The first order planetary gear 30 of transmission system 20 is three planetary gears normally, and tooth 31 fully coordinates with the tooth 26 of pinion 25.Transmission system 20 also comprises is with cogged gearhead 33, its middle gear to have teeth groove or tooth and plate (plate is towards first order gear 30).First order gear 30 driven wheel heads 33.Second level planetary gear 35 also comprises three planetary gears with external tooth 36 conventionally.Gearhead 33 is positioned at the upstream of first order gear 30, and drives second level gear 35.Therefore, the first order (for example, group) gear 30 is for example, around pinion 25 orbit abouts capable (Fig. 3 and Fig. 4) and the second level (, group) gear 32 capable around the output gear orbit about of gearhead 33.In turn, second level gear 35 driven brackets 40, bracket 40 driven tool output shafts 18.Within a part for bracket 40 is also present in ring gear 70, bracket 40 has its outside at ring gear 70 of center hub 40h and extends a segment distance and retaining tool output shaft 18.
Referring now to Fig. 5 to Fig. 8, describe in more detail gear cover 16 and be mounted to motor rack 50.In Fig. 5, in Fig. 1, the shell 12 of electric tool 10 is illustrated as transparently, and object is to be depicted in better the gear cover 16 that is fixed to motor rack 50 in instrument 10.Described motor rack 50 is included in the first couple and second pair of locking element 55 (Fig. 7 A) of interval apart relation on diameter.Described motor rack 50 also comprises the spline opening 53 that extends through intermediate portion 50m, and the passage 50p that extends through motor rack, at each sidepiece of spline opening 53, has a passage 50p.As mentioned above, rotor 22 extends through opening 53, and is connected with the transmission system 20 in gear cover 16.As mentioned above, securing member 14f (Fig. 4) is inserted through passage 50p motor 14 is fixed to motor rack the first side 52.
The described locking element 55 being positioned in motor rack the second side 54 is configured to be meshed with corresponding gear cover locking element 17.Each motor rack locking element 55 comprises arc groove 55g, and it holds corresponding gear cover locking element 17 slidably.The proximal part 16b of gear cover 16 is applicable to contact motor rack the second side 54 between corresponding first pair and second pair of locking element 55, then rotation slidably, so that gear cover locking element 17 rotatably and is regularly meshed with motor rack locking element 55.
Fig. 7 A has described gear cover 16 and the motor rack 50 before being attached to each other.In Fig. 7 B, gear cover 16 and motor rack 50 be aim at so that the second side 54 of gear cover near-end 16b and motor rack is contact relation, and make each gear cover locking element 17 be oriented to rotate in the groove 55g of corresponding motor rack locking element 55.In Fig. 7 C, gear cover 16 turned clockwise about 90 degree (90 °) so that each gear cover locking element 17 is slidably received within the corresponding groove 55g of each corresponding motor rack locking element 55.
Embodiments of the invention are not limited to the described structure of gear cover locking element 17, motor rack locking element 55 and groove 55g.Gear cover 16 is locked to being used that the whole bag of tricks of motor rack 50 can be without restriction slidably.The locking element 17,55 with difformity and structure can be used by without stint.Face and, the locking element 17,55 of varying number can be used.And in some embodiments of the invention, motor rack locking element 55 and groove 55g can be positioned on gear cover shell, and locking element 17 can be positioned on motor rack 50.
About Fig. 9 A to 9B, the assist handle 150 that is configured to be grasped by the user of instrument 10 can be removably fixed to the exposed part (being far-end 16a) of gear cover 16.Gear cover 16 provides rigid support for assist handle 150.Described handle 150 comprises relative far-end 152 and near-end 154.Extendingly/collapsible be with 156 from extending in handle near-end 154, and be configured to around and clamp gear cover 16 can comprise position tensioning mechanism 158 in the inner so that handle 150 is fixed thereon handle 150, its allow user when handle 150 is attached to instrument 10 around gear cover 16 puller straps 156, and can loosen and be with 156, so that handle 150 can be from instrument 10 dismountings.In some embodiments of the invention, by axial-rotation (the middle arrow A of handle 150 distal portions
1illustrate) operation tensioning mechanism 158.Yet, according to embodiments of the invention, can use other mechanisms that can make with 156 extensions and contraction.
With reference to Figure 10 to Figure 15, show according to other embodiments of the invention and for the gear cover 16 with using together with electric wire electric tool (such as the instrument 10 of Fig. 1).Gear cover 16 is similar to the gear cover 16 in Fig. 1 to Fig. 8 with in function at structure.Gear cover 16 shown in Figure 10 to Figure 15 has long and narrow shell 16h, and shell 16h correspondingly has independently distal portions 16a and the proximal part 16b that relative longitudinal separation is separated.As mentioned above, gear cover shell 16h is configured to the transmission system of packaged battery power driven tools 10.Proximal part 16b has opening 21, and opening 21 is configured to hold from the turning in 22 (Fig. 3) of the motor 14 of electric tool 10, and rotor 22 is connected with transmission system 20.Distal portions 16a has opening 23, and the output shaft 18 (Fig. 1) of electric tool 10 extends through opening 23.
The gear cover 16 of Figure 10 to Figure 15 comprises around the corresponding locking element 17 of the outer weekly interval of gear cover near-end 16b.Each locking element 17 extends and has conical configuration from the outer surface outward radial of gear cover shell 16h, as above about described in the gear cover 16 in Fig. 1 to Fig. 8.As mentioned above, by the gear cover locking element 17 that cooperates with motor rack locking element 55 and be meshed slidably with it, gear cover shell 16h is configured to be mounted to rigidly the second side 54 (Fig. 5) of motor rack 50.
As scheme institute, the gear cover 16 in Figure 10 to Figure 15 comprises the outer surface extension around gear cover shell 16h, the flange 16f adjacent with proximal part 16b.Flange 16f can have the bottom 16fb of arc top 16ft, arc sidepiece 16fs and general planar.Described flange 16f also comprises the outer surface 15 of taper.
The flange outer surface 15 of the structure of flange 16f and tapered profiles is designed to coordinate (Figure 13 to Figure 15) with a part or a plurality of part 12m of the inside 12i of the shell 12 of instrument 10.Flange 16f contributes to gear cover 16 to be locked to shell, and helps and prevent that gear cover 16 from moving.In addition, the instrument 10 being equipped with as assembling of flange 16f and housing parts 12m provides intensity and hardness.Flange 16f can have different shapes and the structure of selecting for the shell locking mesh from electric tool.Embodiments of the invention be not limited to flange 16f and corresponding shell 12 internal feature shown in structure or position.
As shown in the figure, the gear cover 16 of Figure 10 to Figure 15 also comprises a plurality of, normally a pair of assembling lug or " ear " 16e, and it is arranged on proximal part 16b place with relation relative on diameter.Each ear 16e comprises the hole 16p through its formation.In the time of within gear cover 16 is installed in shell 12, each ear 16e be configured to at housing parts 12
1in corresponding threaded sleeve 12b (Fig. 2,3,13) and at housing parts 12
2interior corresponding opening 12c aims at (Fig. 2).Figure 14 and Figure 15 show gear cover 16 and are positioned at housing parts 12
1in, so that each gear cover ear 16e is in abutting connection with corresponding threaded sleeve 12b.Shell assembling screw 13 (Fig. 2) extends through the hole 12c in housing parts 122, extends through the hole 16p in gear cover ear 16e, and threadably meshes with the threaded sleeve 12b in housing parts 121.Gear cover ear 16e between gear cover 16 and shell 12, provide rigidity, support structure connects, and therefore improved intensity and the hardness of tool outer casing 12.In addition, gear cover ear 16e contributes to gear cover 16 be locked in shell 12 and when instrument 10 is mounted, contribute to prevent that gear cover 16 from moving.
Figure 10 to Figure 15 comprises that the gear cover 16 of flange 16f and ear 16e can be aluminium or other relative lightweights but the single single and/or whole main body of material firm in structure.Main body can be by metal injection molded manufacture.Certainly, the machining, forging, casting or the other materials moulding process that have enough accuracy also can be used.
More than described the present invention but be not interpreted as restriction the present invention.Although described exemplary embodiments more of the present invention, those skilled in the art hold intelligible, many modifications are possible in the exemplary embodiment, and do not depart from fact instruction of the present invention and advantage.Therefore, within all such modifications are intended to be included in the scope of the present invention that claim limits.The present invention is by following claim and comprise that the equivalent of claim is within it limited.
Claims (23)
1. an electric tool, comprises
Motor, it has the rotor of outward extending restriction driving axis;
Surround the shell of motor; And
Gear cover, its encapsulation is connected to rotor and is arranged to the transmission system of driven tool output, wherein gear cover has first end and the second end that relative longitudinal separation is separated, and first end is encapsulated by shell, and the second end is exposed to the instrument outside in shell the place ahead.
2. electric tool as claimed in claim 1, also comprise motor rack, it has the first relative side and the second side, and wherein motor is fixed to the first side of motor rack, wherein gear cover is fixed to the second side of motor rack, and its rotor extends through motor rack to be connected with transmission system.
3. electric tool as claimed in claim 2, wherein gear cover be fixed to motor rack the second side so that transmission system aim at one heart with rotor.
4. electric tool as claimed in claim 2, is also included in the intermeshing locking element of energy in the second side of gear cover and motor rack, and locking element is held in gear cover on motor rack securely.
5. electric tool as claimed in claim 4, wherein gear cover locking element is in periphery at the first end of gear cover and is spaced from each other, and can with respect to rotatablely moving of motor rack, mesh with motor rack locking element by gear cover.
6. electric tool as claimed in claim 4, wherein each gear cover locking element is from the periphery of gear cover rear end extension vertically, and wherein each motor rack locking element comprises and is arranged to the arc groove that holds slidably therein corresponding gear cover locking member.
7. electric tool as claimed in claim 6, wherein gear cover locking element has conical configuration, and the size of conical configuration forms the interference fit causing with motor rack locking element.
8. electric tool as claimed in claim 1, also comprises the assist handle that is removably fixed on gear cover, and its user who is arranged to by instrument grasps.
9. electric tool as claimed in claim 8, wherein assist handle is fixed to gear cover by the band around gear cover, and wherein in handle comprise be connected to band with will band with respect to gear cover tension and the tensioning mechanism that loosens.
10. electric tool as claimed in claim 1, its housing comprises two parts of the cardinal principle symmetry of engagement releasedly.
11. electric tools as claimed in claim 1, wherein gear cover first end comprises a pair ofly from its outward extending assembling lug, assembling lug is fixed on the inside of shell.
12. electric tools as claimed in claim 1, wherein gear cover comprises the outwards outstanding flange extending at circumferencial direction, the interior section of flange engagement shell.
13. electric tools as claimed in claim 1, wherein electric tool is without electric wire electric tool.
14. 1 kinds of gear covers for electric tool, gear cover comprises:
There is first end that relative longitudinal separation separates and the elongated enclosure of the two or two end, its housing is arranged to the transmission system of packaged battery power driven tools, wherein first end has the opening that is configured for the motor holding from electric tool, the rotor being connected with transmission system, and the output shaft that wherein the second end has an electric tool can extend through its opening; And
At shell first end place, be configured for a plurality of locking elements that shell are fixed to the motor rack of electric tool.
15. gear covers as claimed in claim 14, wherein locking element is in periphery and is spaced from each other at the first end of shell, and can with motor rack on corresponding locking element rotatably mesh.
16. gear covers as claimed in claim 14, wherein locking element stretches out from the peripheral, axial of the first end of shell.
17. gear covers as claimed in claim 14, wherein locking element has and causes crossing with corresponding motor rack locking element the conical configuration that baby coordinates.
18. gear covers as claimed in claim 14, the first end of its housing comprise be arranged to be fixed to electric power tool shell interior section from its outward extending a pair of assembling lug.
19. gear covers as claimed in claim 14, wherein gear cover shell comprises the outward extending flange of the interior section that is arranged to engagement electric power tool shell.
20. kinds of motor racks for electric tool, motor rack comprises:
The base with relative the first side and the second side, wherein the first side is configured to be attached to the motor of electric tool, and wherein the second side is configured to be attached to the gear cover of the transmission system of packaged battery power driven tools, its split shed extends through base and is arranged to the rotor being connected with transmission system holding through wherein between the first side and the second side; And
Be arranged to a plurality of locking elements at base the second side place that gear cover are fixed to base.
21. motor racks as claimed in claim 20, wherein locking element is separated by space, and can be put with respect to rotatablely moving of motor rack and be meshed with corresponding gear cover locking element by gear.
22. motor racks as claimed in claim 20, wherein each motor rack locking element comprises and is arranged to the arc groove that holds slidably therein corresponding gear cover locking member.
23. motor racks as claimed in claim 20, its split shed is spline opening.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| USPCT/US2011/030646 | 2011-03-31 | ||
| PCT/US2011/030646 WO2012134472A1 (en) | 2011-03-31 | 2011-03-31 | Twist lock gear case for power tools |
| US201161512183P | 2011-07-27 | 2011-07-27 | |
| US61/512,183 | 2011-07-27 | ||
| US13/431,281 US9044850B2 (en) | 2011-07-27 | 2012-03-27 | Twist lock gear case for power tools |
| US13/431,281 | 2012-03-27 | ||
| PCT/US2012/030846 WO2012135283A2 (en) | 2011-03-31 | 2012-03-28 | Twist lock gear case for power tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103702802A true CN103702802A (en) | 2014-04-02 |
Family
ID=49784149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280016156.8A Pending CN103702802A (en) | 2011-03-31 | 2012-03-28 | Twist lock gear case for power tools |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2691214A4 (en) |
| CN (1) | CN103702802A (en) |
| WO (1) | WO2012135283A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502328A (en) * | 2019-10-08 | 2022-05-13 | 阿特拉斯·科普柯工业技术公司 | Insulating tool cover assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018206873A1 (en) * | 2018-05-04 | 2019-11-07 | Robert Bosch Gmbh | Tool housing |
| DE102018206882A1 (en) * | 2018-05-04 | 2019-11-07 | Robert Bosch Gmbh | Electric screwdriver housing |
| US20220336904A1 (en) * | 2021-04-19 | 2022-10-20 | Black & Decker Inc. | Nosecone to battery connection in power tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697453A (en) * | 1984-07-05 | 1987-10-06 | Kawasaki Steel Corp. | Apparatus for monitoring burden distribution in furnace |
| US5033552A (en) * | 1990-07-24 | 1991-07-23 | Hu Cheng Te | Multi-function electric tool |
| US5624000A (en) * | 1994-07-26 | 1997-04-29 | Black & Decker, Inc. | Power tool with modular drive system and method of assembly of modular drive system |
| US6672402B2 (en) * | 2001-12-27 | 2004-01-06 | Black & Decker Inc. | Combined fastenerless motor end cap and output device mounting |
| CN1606483A (en) * | 2001-12-20 | 2005-04-13 | 布莱克-德克尔公司 | Side handles on drill/drivers |
| CN201632998U (en) * | 2010-02-09 | 2010-11-17 | 上海锐奇工具股份有限公司 | Detachable double-function auxiliary handle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6039126A (en) * | 1998-05-15 | 2000-03-21 | Hsieh; An-Fu | Multi-usage electric tool with angle-changeable grip |
| GB0801302D0 (en) * | 2008-01-24 | 2008-03-05 | Black & Decker Inc | Handle assembly for power tool |
| US9016398B2 (en) * | 2008-12-04 | 2015-04-28 | Ingersoll-Rand Company | Disc-shaped torque transducer |
-
2012
- 2012-03-28 WO PCT/US2012/030846 patent/WO2012135283A2/en active Application Filing
- 2012-03-28 EP EP12764183.5A patent/EP2691214A4/en not_active Withdrawn
- 2012-03-28 CN CN201280016156.8A patent/CN103702802A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4697453A (en) * | 1984-07-05 | 1987-10-06 | Kawasaki Steel Corp. | Apparatus for monitoring burden distribution in furnace |
| US5033552A (en) * | 1990-07-24 | 1991-07-23 | Hu Cheng Te | Multi-function electric tool |
| US5624000A (en) * | 1994-07-26 | 1997-04-29 | Black & Decker, Inc. | Power tool with modular drive system and method of assembly of modular drive system |
| CN1606483A (en) * | 2001-12-20 | 2005-04-13 | 布莱克-德克尔公司 | Side handles on drill/drivers |
| US6672402B2 (en) * | 2001-12-27 | 2004-01-06 | Black & Decker Inc. | Combined fastenerless motor end cap and output device mounting |
| CN201632998U (en) * | 2010-02-09 | 2010-11-17 | 上海锐奇工具股份有限公司 | Detachable double-function auxiliary handle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114502328A (en) * | 2019-10-08 | 2022-05-13 | 阿特拉斯·科普柯工业技术公司 | Insulating tool cover assembly |
| CN114502328B (en) * | 2019-10-08 | 2024-05-24 | 阿特拉斯·科普柯工业技术公司 | Insulated tool cover assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012135283A3 (en) | 2012-12-27 |
| EP2691214A4 (en) | 2016-03-09 |
| WO2012135283A2 (en) | 2012-10-04 |
| EP2691214A2 (en) | 2014-02-05 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140402 |